1 | 'use strict';
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2 |
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3 | var stream = require('stream');
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4 | var zlib = require('zlib');
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5 | var CryptoJS = require('crypto-js');
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6 | var fs = require('fs');
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7 | var fontkit = require('fontkit');
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8 | var events = require('events');
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9 | var LineBreaker = require('linebreak');
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10 | var exif = require('jpeg-exif');
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11 | var PNG = require('png-js');
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12 |
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13 |
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14 |
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15 |
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16 |
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17 | class PDFAbstractReference {
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18 | toString() {
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19 | throw new Error('Must be implemented by subclasses');
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20 | }
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21 | }
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22 |
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23 |
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24 |
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25 |
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26 | class PDFTree {
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27 | constructor(options = {}) {
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28 | this._items = {};
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29 |
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30 | this.limits = typeof options.limits === 'boolean' ? options.limits : true;
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31 | }
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32 | add(key, val) {
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33 | return this._items[key] = val;
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34 | }
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35 | get(key) {
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36 | return this._items[key];
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37 | }
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38 | toString() {
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39 |
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40 | const sortedKeys = Object.keys(this._items).sort((a, b) => this._compareKeys(a, b));
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41 | const out = ['<<'];
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42 | if (this.limits && sortedKeys.length > 1) {
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43 | const first = sortedKeys[0],
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44 | last = sortedKeys[sortedKeys.length - 1];
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45 | out.push(` /Limits ${PDFObject.convert([this._dataForKey(first), this._dataForKey(last)])}`);
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46 | }
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47 | out.push(` /${this._keysName()} [`);
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48 | for (let key of sortedKeys) {
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49 | out.push(` ${PDFObject.convert(this._dataForKey(key))} ${PDFObject.convert(this._items[key])}`);
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50 | }
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51 | out.push(']');
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52 | out.push('>>');
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53 | return out.join('\n');
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54 | }
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55 | _compareKeys(
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56 | ) {
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57 | throw new Error('Must be implemented by subclasses');
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58 | }
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59 | _keysName() {
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60 | throw new Error('Must be implemented by subclasses');
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61 | }
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62 | _dataForKey(
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63 | ) {
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64 | throw new Error('Must be implemented by subclasses');
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65 | }
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66 | }
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67 |
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68 |
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69 |
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70 |
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71 |
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72 | const pad = (str, length) => (Array(length + 1).join('0') + str).slice(-length);
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73 | const escapableRe = /[\n\r\t\b\f()\\]/g;
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74 | const escapable = {
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75 | '\n': '\\n',
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76 | '\r': '\\r',
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77 | '\t': '\\t',
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78 | '\b': '\\b',
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79 | '\f': '\\f',
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80 | '\\': '\\\\',
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81 | '(': '\\(',
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82 | ')': '\\)'
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83 | };
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84 |
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85 |
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86 | const swapBytes = function (buff) {
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87 | const l = buff.length;
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88 | if (l & 0x01) {
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89 | throw new Error('Buffer length must be even');
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90 | } else {
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91 | for (let i = 0, end = l - 1; i < end; i += 2) {
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92 | const a = buff[i];
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93 | buff[i] = buff[i + 1];
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94 | buff[i + 1] = a;
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95 | }
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96 | }
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97 | return buff;
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98 | };
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99 | class PDFObject {
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100 | static convert(object, encryptFn = null) {
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101 |
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102 | if (typeof object === 'string') {
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103 | return `/${object}`;
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104 |
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105 |
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106 | } else if (object instanceof String) {
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107 | let string = object;
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108 |
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109 | let isUnicode = false;
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110 | for (let i = 0, end = string.length; i < end; i++) {
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111 | if (string.charCodeAt(i) > 0x7f) {
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112 | isUnicode = true;
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113 | break;
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114 | }
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115 | }
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116 |
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117 |
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118 | let stringBuffer;
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119 | if (isUnicode) {
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120 | stringBuffer = swapBytes(Buffer.from(`\ufeff${string}`, 'utf16le'));
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121 | } else {
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122 | stringBuffer = Buffer.from(string.valueOf(), 'ascii');
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123 | }
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124 |
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125 |
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126 | if (encryptFn) {
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127 | string = encryptFn(stringBuffer).toString('binary');
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128 | } else {
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129 | string = stringBuffer.toString('binary');
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130 | }
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131 |
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132 |
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133 | string = string.replace(escapableRe, c => escapable[c]);
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134 | return `(${string})`;
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135 |
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136 |
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137 | } else if (Buffer.isBuffer(object)) {
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138 | return `<${object.toString('hex')}>`;
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139 | } else if (object instanceof PDFAbstractReference || object instanceof PDFTree) {
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140 | return object.toString();
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141 | } else if (object instanceof Date) {
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142 | let string = `D:${pad(object.getUTCFullYear(), 4)}` + pad(object.getUTCMonth() + 1, 2) + pad(object.getUTCDate(), 2) + pad(object.getUTCHours(), 2) + pad(object.getUTCMinutes(), 2) + pad(object.getUTCSeconds(), 2) + 'Z';
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143 |
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144 |
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145 | if (encryptFn) {
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146 | string = encryptFn(Buffer.from(string, 'ascii')).toString('binary');
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147 |
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148 |
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149 | string = string.replace(escapableRe, c => escapable[c]);
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150 | }
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151 | return `(${string})`;
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152 | } else if (Array.isArray(object)) {
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153 | const items = object.map(e => PDFObject.convert(e, encryptFn)).join(' ');
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154 | return `[${items}]`;
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155 | } else if ({}.toString.call(object) === '[object Object]') {
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156 | const out = ['<<'];
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157 | for (let key in object) {
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158 | const val = object[key];
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159 | out.push(`/${key} ${PDFObject.convert(val, encryptFn)}`);
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160 | }
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161 | out.push('>>');
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162 | return out.join('\n');
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163 | } else if (typeof object === 'number') {
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164 | return PDFObject.number(object);
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165 | } else {
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166 | return `${object}`;
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167 | }
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168 | }
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169 | static number(n) {
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170 | if (n > -1e21 && n < 1e21) {
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171 | return Math.round(n * 1e6) / 1e6;
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172 | }
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173 | throw new Error(`unsupported number: ${n}`);
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174 | }
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175 | }
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176 |
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177 |
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178 |
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179 |
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180 |
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181 | class PDFReference extends PDFAbstractReference {
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182 | constructor(document, id, data = {}) {
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183 | super();
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184 | this.document = document;
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185 | this.id = id;
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186 | this.data = data;
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187 | this.gen = 0;
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188 | this.compress = this.document.compress && !this.data.Filter;
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189 | this.uncompressedLength = 0;
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190 | this.buffer = [];
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191 | }
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192 | write(chunk) {
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193 | if (!Buffer.isBuffer(chunk)) {
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194 | chunk = Buffer.from(chunk + '\n', 'binary');
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195 | }
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196 | this.uncompressedLength += chunk.length;
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197 | if (this.data.Length == null) {
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198 | this.data.Length = 0;
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199 | }
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200 | this.buffer.push(chunk);
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201 | this.data.Length += chunk.length;
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202 | if (this.compress) {
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203 | return this.data.Filter = 'FlateDecode';
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204 | }
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205 | }
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206 | end(chunk) {
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207 | if (chunk) {
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208 | this.write(chunk);
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209 | }
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210 | return this.finalize();
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211 | }
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212 | finalize() {
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213 | this.offset = this.document._offset;
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214 | const encryptFn = this.document._security ? this.document._security.getEncryptFn(this.id, this.gen) : null;
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215 | if (this.buffer.length) {
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216 | this.buffer = Buffer.concat(this.buffer);
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217 | if (this.compress) {
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218 | this.buffer = zlib.deflateSync(this.buffer);
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219 | }
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220 | if (encryptFn) {
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221 | this.buffer = encryptFn(this.buffer);
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222 | }
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223 | this.data.Length = this.buffer.length;
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224 | }
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225 | this.document._write(`${this.id} ${this.gen} obj`);
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226 | this.document._write(PDFObject.convert(this.data, encryptFn));
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227 | if (this.buffer.length) {
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228 | this.document._write('stream');
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229 | this.document._write(this.buffer);
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230 | this.buffer = [];
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231 | this.document._write('\nendstream');
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232 | }
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233 | this.document._write('endobj');
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234 | this.document._refEnd(this);
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235 | }
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236 | toString() {
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237 | return `${this.id} ${this.gen} R`;
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238 | }
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239 | }
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240 |
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241 |
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242 |
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243 |
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244 |
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245 |
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246 | const DEFAULT_MARGINS = {
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247 | top: 72,
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248 | left: 72,
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249 | bottom: 72,
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250 | right: 72
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251 | };
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252 | const SIZES = {
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253 | '4A0': [4767.87, 6740.79],
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254 | '2A0': [3370.39, 4767.87],
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255 | A0: [2383.94, 3370.39],
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256 | A1: [1683.78, 2383.94],
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257 | A2: [1190.55, 1683.78],
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258 | A3: [841.89, 1190.55],
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259 | A4: [595.28, 841.89],
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260 | A5: [419.53, 595.28],
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261 | A6: [297.64, 419.53],
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262 | A7: [209.76, 297.64],
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263 | A8: [147.4, 209.76],
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264 | A9: [104.88, 147.4],
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265 | A10: [73.7, 104.88],
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266 | B0: [2834.65, 4008.19],
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267 | B1: [2004.09, 2834.65],
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268 | B2: [1417.32, 2004.09],
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269 | B3: [1000.63, 1417.32],
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270 | B4: [708.66, 1000.63],
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271 | B5: [498.9, 708.66],
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272 | B6: [354.33, 498.9],
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273 | B7: [249.45, 354.33],
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274 | B8: [175.75, 249.45],
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275 | B9: [124.72, 175.75],
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276 | B10: [87.87, 124.72],
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277 | C0: [2599.37, 3676.54],
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278 | C1: [1836.85, 2599.37],
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279 | C2: [1298.27, 1836.85],
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280 | C3: [918.43, 1298.27],
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281 | C4: [649.13, 918.43],
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282 | C5: [459.21, 649.13],
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283 | C6: [323.15, 459.21],
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284 | C7: [229.61, 323.15],
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285 | C8: [161.57, 229.61],
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286 | C9: [113.39, 161.57],
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287 | C10: [79.37, 113.39],
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288 | RA0: [2437.8, 3458.27],
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289 | RA1: [1729.13, 2437.8],
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290 | RA2: [1218.9, 1729.13],
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291 | RA3: [864.57, 1218.9],
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292 | RA4: [609.45, 864.57],
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293 | SRA0: [2551.18, 3628.35],
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294 | SRA1: [1814.17, 2551.18],
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295 | SRA2: [1275.59, 1814.17],
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296 | SRA3: [907.09, 1275.59],
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297 | SRA4: [637.8, 907.09],
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298 | EXECUTIVE: [521.86, 756.0],
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299 | FOLIO: [612.0, 936.0],
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300 | LEGAL: [612.0, 1008.0],
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301 | LETTER: [612.0, 792.0],
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302 | TABLOID: [792.0, 1224.0]
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303 | };
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304 | class PDFPage {
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305 | constructor(document, options = {}) {
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306 | this.document = document;
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307 | this.size = options.size || 'letter';
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308 | this.layout = options.layout || 'portrait';
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309 |
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310 |
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311 | if (typeof options.margin === 'number') {
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312 | this.margins = {
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313 | top: options.margin,
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314 | left: options.margin,
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315 | bottom: options.margin,
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316 | right: options.margin
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317 | };
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318 |
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319 |
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320 | } else {
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321 | this.margins = options.margins || DEFAULT_MARGINS;
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322 | }
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323 |
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324 |
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325 | const dimensions = Array.isArray(this.size) ? this.size : SIZES[this.size.toUpperCase()];
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326 | this.width = dimensions[this.layout === 'portrait' ? 0 : 1];
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327 | this.height = dimensions[this.layout === 'portrait' ? 1 : 0];
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328 | this.content = this.document.ref();
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329 |
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330 |
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331 | this.resources = this.document.ref({
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332 | ProcSet: ['PDF', 'Text', 'ImageB', 'ImageC', 'ImageI']
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333 | });
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334 |
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335 |
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336 | this.dictionary = this.document.ref({
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337 | Type: 'Page',
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338 | Parent: this.document._root.data.Pages,
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339 | MediaBox: [0, 0, this.width, this.height],
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340 | Contents: this.content,
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341 | Resources: this.resources
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342 | });
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343 | this.markings = [];
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344 | }
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345 |
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346 |
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347 | get fonts() {
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348 | const data = this.resources.data;
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349 | return data.Font != null ? data.Font : data.Font = {};
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350 | }
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351 | get xobjects() {
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352 | const data = this.resources.data;
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353 | return data.XObject != null ? data.XObject : data.XObject = {};
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354 | }
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355 | get ext_gstates() {
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356 | const data = this.resources.data;
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357 | return data.ExtGState != null ? data.ExtGState : data.ExtGState = {};
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358 | }
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359 | get patterns() {
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360 | const data = this.resources.data;
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361 | return data.Pattern != null ? data.Pattern : data.Pattern = {};
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362 | }
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363 | get colorSpaces() {
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364 | const data = this.resources.data;
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365 | return data.ColorSpace || (data.ColorSpace = {});
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366 | }
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367 | get annotations() {
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368 | const data = this.dictionary.data;
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369 | return data.Annots != null ? data.Annots : data.Annots = [];
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370 | }
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371 | get structParentTreeKey() {
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372 | const data = this.dictionary.data;
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373 | return data.StructParents != null ? data.StructParents : data.StructParents = this.document.createStructParentTreeNextKey();
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374 | }
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375 | maxY() {
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376 | return this.height - this.margins.bottom;
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377 | }
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378 | write(chunk) {
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379 | return this.content.write(chunk);
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380 | }
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381 | end() {
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382 | this.dictionary.end();
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383 | this.resources.end();
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384 | return this.content.end();
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385 | }
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386 | }
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387 |
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388 |
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389 |
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390 |
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391 | class PDFNameTree extends PDFTree {
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392 | _compareKeys(a, b) {
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393 | return a.localeCompare(b);
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394 | }
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395 | _keysName() {
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396 | return "Names";
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397 | }
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398 | _dataForKey(k) {
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399 | return new String(k);
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400 | }
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401 | }
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402 |
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403 |
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404 |
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405 |
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406 |
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407 |
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408 |
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409 | function inRange(value, rangeGroup) {
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410 | if (value < rangeGroup[0]) return false;
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411 | let startRange = 0;
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412 | let endRange = rangeGroup.length / 2;
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413 | while (startRange <= endRange) {
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414 | const middleRange = Math.floor((startRange + endRange) / 2);
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415 |
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416 |
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417 | const arrayIndex = middleRange * 2;
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418 |
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419 |
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420 | if (value >= rangeGroup[arrayIndex] && value <= rangeGroup[arrayIndex + 1]) {
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421 | return true;
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422 | }
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423 | if (value > rangeGroup[arrayIndex + 1]) {
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424 |
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425 | startRange = middleRange + 1;
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426 | } else {
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427 |
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428 | endRange = middleRange - 1;
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429 | }
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430 | }
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431 | return false;
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432 | }
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433 |
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434 |
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435 |
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436 |
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437 |
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438 |
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439 | const unassigned_code_points = [0x0221, 0x0221, 0x0234, 0x024f, 0x02ae, 0x02af, 0x02ef, 0x02ff, 0x0350, 0x035f, 0x0370, 0x0373, 0x0376, 0x0379, 0x037b, 0x037d, 0x037f, 0x0383, 0x038b, 0x038b, 0x038d, 0x038d, 0x03a2, 0x03a2, 0x03cf, 0x03cf, 0x03f7, 0x03ff, 0x0487, 0x0487, 0x04cf, 0x04cf, 0x04f6, 0x04f7, 0x04fa, 0x04ff, 0x0510, 0x0530, 0x0557, 0x0558, 0x0560, 0x0560, 0x0588, 0x0588, 0x058b, 0x0590, 0x05a2, 0x05a2, 0x05ba, 0x05ba, 0x05c5, 0x05cf, 0x05eb, 0x05ef, 0x05f5, 0x060b, 0x060d, 0x061a, 0x061c, 0x061e, 0x0620, 0x0620, 0x063b, 0x063f, 0x0656, 0x065f, 0x06ee, 0x06ef, 0x06ff, 0x06ff, 0x070e, 0x070e, 0x072d, 0x072f, 0x074b, 0x077f, 0x07b2, 0x0900, 0x0904, 0x0904, 0x093a, 0x093b, 0x094e, 0x094f, 0x0955, 0x0957, 0x0971, 0x0980, 0x0984, 0x0984, 0x098d, 0x098e, 0x0991, 0x0992, 0x09a9, 0x09a9, 0x09b1, 0x09b1, 0x09b3, 0x09b5, 0x09ba, 0x09bb, 0x09bd, 0x09bd, 0x09c5, 0x09c6, 0x09c9, 0x09ca, 0x09ce, 0x09d6, 0x09d8, 0x09db, 0x09de, 0x09de, 0x09e4, 0x09e5, 0x09fb, 0x0a01, 0x0a03, 0x0a04, 0x0a0b, 0x0a0e, 0x0a11, 0x0a12, 0x0a29, 0x0a29, 0x0a31, 0x0a31, 0x0a34, 0x0a34, 0x0a37, 0x0a37, 0x0a3a, 0x0a3b, 0x0a3d, 0x0a3d, 0x0a43, 0x0a46, 0x0a49, 0x0a4a, 0x0a4e, 0x0a58, 0x0a5d, 0x0a5d, 0x0a5f, 0x0a65, 0x0a75, 0x0a80, 0x0a84, 0x0a84, 0x0a8c, 0x0a8c, 0x0a8e, 0x0a8e, 0x0a92, 0x0a92, 0x0aa9, 0x0aa9, 0x0ab1, 0x0ab1, 0x0ab4, 0x0ab4, 0x0aba, 0x0abb, 0x0ac6, 0x0ac6, 0x0aca, 0x0aca, 0x0ace, 0x0acf, 0x0ad1, 0x0adf, 0x0ae1, 0x0ae5, 0x0af0, 0x0b00, 0x0b04, 0x0b04, 0x0b0d, 0x0b0e, 0x0b11, 0x0b12, 0x0b29, 0x0b29, 0x0b31, 0x0b31, 0x0b34, 0x0b35, 0x0b3a, 0x0b3b, 0x0b44, 0x0b46, 0x0b49, 0x0b4a, 0x0b4e, 0x0b55, 0x0b58, 0x0b5b, 0x0b5e, 0x0b5e, 0x0b62, 0x0b65, 0x0b71, 0x0b81, 0x0b84, 0x0b84, 0x0b8b, 0x0b8d, 0x0b91, 0x0b91, 0x0b96, 0x0b98, 0x0b9b, 0x0b9b, 0x0b9d, 0x0b9d, 0x0ba0, 0x0ba2, 0x0ba5, 0x0ba7, 0x0bab, 0x0bad, 0x0bb6, 0x0bb6, 0x0bba, 0x0bbd, 0x0bc3, 0x0bc5, 0x0bc9, 0x0bc9, 0x0bce, 0x0bd6, 0x0bd8, 0x0be6, 0x0bf3, 0x0c00, 0x0c04, 0x0c04, 0x0c0d, 0x0c0d, 0x0c11, 0x0c11, 0x0c29, 0x0c29, 0x0c34, 0x0c34, 0x0c3a, 0x0c3d, 0x0c45, 0x0c45, 0x0c49, 0x0c49, 0x0c4e, 0x0c54, 0x0c57, 0x0c5f, 0x0c62, 0x0c65, 0x0c70, 0x0c81, 0x0c84, 0x0c84, 0x0c8d, 0x0c8d, 0x0c91, 0x0c91, 0x0ca9, 0x0ca9, 0x0cb4, 0x0cb4, 0x0cba, 0x0cbd, 0x0cc5, 0x0cc5, 0x0cc9, 0x0cc9, 0x0cce, 0x0cd4, 0x0cd7, 0x0cdd, 0x0cdf, 0x0cdf, 0x0ce2, 0x0ce5, 0x0cf0, 0x0d01, 0x0d04, 0x0d04, 0x0d0d, 0x0d0d, 0x0d11, 0x0d11, 0x0d29, 0x0d29, 0x0d3a, 0x0d3d, 0x0d44, 0x0d45, 0x0d49, 0x0d49, 0x0d4e, 0x0d56, 0x0d58, 0x0d5f, 0x0d62, 0x0d65, 0x0d70, 0x0d81, 0x0d84, 0x0d84, 0x0d97, 0x0d99, 0x0db2, 0x0db2, 0x0dbc, 0x0dbc, 0x0dbe, 0x0dbf, 0x0dc7, 0x0dc9, 0x0dcb, 0x0dce, 0x0dd5, 0x0dd5, 0x0dd7, 0x0dd7, 0x0de0, 0x0df1, 0x0df5, 0x0e00, 0x0e3b, 0x0e3e, 0x0e5c, 0x0e80, 0x0e83, 0x0e83, 0x0e85, 0x0e86, 0x0e89, 0x0e89, 0x0e8b, 0x0e8c, 0x0e8e, 0x0e93, 0x0e98, 0x0e98, 0x0ea0, 0x0ea0, 0x0ea4, 0x0ea4, 0x0ea6, 0x0ea6, 0x0ea8, 0x0ea9, 0x0eac, 0x0eac, 0x0eba, 0x0eba, 0x0ebe, 0x0ebf, 0x0ec5, 0x0ec5, 0x0ec7, 0x0ec7, 0x0ece, 0x0ecf, 0x0eda, 0x0edb, 0x0ede, 0x0eff, 0x0f48, 0x0f48, 0x0f6b, 0x0f70, 0x0f8c, 0x0f8f, 0x0f98, 0x0f98, 0x0fbd, 0x0fbd, 0x0fcd, 0x0fce, 0x0fd0, 0x0fff, 0x1022, 0x1022, 0x1028, 0x1028, 0x102b, 0x102b, 0x1033, 0x1035, 0x103a, 0x103f, 0x105a, 0x109f, 0x10c6, 0x10cf, 0x10f9, 0x10fa, 0x10fc, 0x10ff, 0x115a, 0x115e, 0x11a3, 0x11a7, 0x11fa, 0x11ff, 0x1207, 0x1207, 0x1247, 0x1247, 0x1249, 0x1249, 0x124e, 0x124f, 0x1257, 0x1257, 0x1259, 0x1259, 0x125e, 0x125f, 0x1287, 0x1287, 0x1289, 0x1289, 0x128e, 0x128f, 0x12af, 0x12af, 0x12b1, 0x12b1, 0x12b6, 0x12b7, 0x12bf, 0x12bf, 0x12c1, 0x12c1, 0x12c6, 0x12c7, 0x12cf, 0x12cf, 0x12d7, 0x12d7, 0x12ef, 0x12ef, 0x130f, 0x130f, 0x1311, 0x1311, 0x1316, 0x1317, 0x131f, 0x131f, 0x1347, 0x1347, 0x135b, 0x1360, 0x137d, 0x139f, 0x13f5, 0x1400, 0x1677, 0x167f, 0x169d, 0x169f, 0x16f1, 0x16ff, 0x170d, 0x170d, 0x1715, 0x171f, 0x1737, 0x173f, 0x1754, 0x175f, 0x176d, 0x176d, 0x1771, 0x1771, 0x1774, 0x177f, 0x17dd, 0x17df, 0x17ea, 0x17ff, 0x180f, 0x180f, 0x181a, 0x181f, 0x1878, 0x187f, 0x18aa, 0x1dff, 0x1e9c, 0x1e9f, 0x1efa, 0x1eff, 0x1f16, 0x1f17, 0x1f1e, 0x1f1f, 0x1f46, 0x1f47, 0x1f4e, 0x1f4f, 0x1f58, 0x1f58, 0x1f5a, 0x1f5a, 0x1f5c, 0x1f5c, 0x1f5e, 0x1f5e, 0x1f7e, 0x1f7f, 0x1fb5, 0x1fb5, 0x1fc5, 0x1fc5, 0x1fd4, 0x1fd5, 0x1fdc, 0x1fdc, 0x1ff0, 0x1ff1, 0x1ff5, 0x1ff5, 0x1fff, 0x1fff, 0x2053, 0x2056, 0x2058, 0x205e, 0x2064, 0x2069, 0x2072, 0x2073, 0x208f, 0x209f, 0x20b2, 0x20cf, 0x20eb, 0x20ff, 0x213b, 0x213c, 0x214c, 0x2152, 0x2184, 0x218f, 0x23cf, 0x23ff, 0x2427, 0x243f, 0x244b, 0x245f, 0x24ff, 0x24ff, 0x2614, 0x2615, 0x2618, 0x2618, 0x267e, 0x267f, 0x268a, 0x2700, 0x2705, 0x2705, 0x270a, 0x270b, 0x2728, 0x2728, 0x274c, 0x274c, 0x274e, 0x274e, 0x2753, 0x2755, 0x2757, 0x2757, 0x275f, 0x2760, 0x2795, 0x2797, 0x27b0, 0x27b0, 0x27bf, 0x27cf, 0x27ec, 0x27ef, 0x2b00, 0x2e7f, 0x2e9a, 0x2e9a, 0x2ef4, 0x2eff, 0x2fd6, 0x2fef, 0x2ffc, 0x2fff, 0x3040, 0x3040, 0x3097, 0x3098, 0x3100, 0x3104, 0x312d, 0x3130, 0x318f, 0x318f, 0x31b8, 0x31ef, 0x321d, 0x321f, 0x3244, 0x3250, 0x327c, 0x327e, 0x32cc, 0x32cf, 0x32ff, 0x32ff, 0x3377, 0x337a, 0x33de, 0x33df, 0x33ff, 0x33ff, 0x4db6, 0x4dff, 0x9fa6, 0x9fff, 0xa48d, 0xa48f, 0xa4c7, 0xabff, 0xd7a4, 0xd7ff, 0xfa2e, 0xfa2f, 0xfa6b, 0xfaff, 0xfb07, 0xfb12, 0xfb18, 0xfb1c, 0xfb37, 0xfb37, 0xfb3d, 0xfb3d, 0xfb3f, 0xfb3f, 0xfb42, 0xfb42, 0xfb45, 0xfb45, 0xfbb2, 0xfbd2, 0xfd40, 0xfd4f, 0xfd90, 0xfd91, 0xfdc8, 0xfdcf, 0xfdfd, 0xfdff, 0xfe10, 0xfe1f, 0xfe24, 0xfe2f, 0xfe47, 0xfe48, 0xfe53, 0xfe53, 0xfe67, 0xfe67, 0xfe6c, 0xfe6f, 0xfe75, 0xfe75, 0xfefd, 0xfefe, 0xff00, 0xff00, 0xffbf, 0xffc1, 0xffc8, 0xffc9, 0xffd0, 0xffd1, 0xffd8, 0xffd9, 0xffdd, 0xffdf, 0xffe7, 0xffe7, 0xffef, 0xfff8, 0x10000, 0x102ff, 0x1031f, 0x1031f, 0x10324, 0x1032f, 0x1034b, 0x103ff, 0x10426, 0x10427, 0x1044e, 0x1cfff, 0x1d0f6, 0x1d0ff, 0x1d127, 0x1d129, 0x1d1de, 0x1d3ff, 0x1d455, 0x1d455, 0x1d49d, 0x1d49d, 0x1d4a0, 0x1d4a1, 0x1d4a3, 0x1d4a4, 0x1d4a7, 0x1d4a8, 0x1d4ad, 0x1d4ad, 0x1d4ba, 0x1d4ba, 0x1d4bc, 0x1d4bc, 0x1d4c1, 0x1d4c1, 0x1d4c4, 0x1d4c4, 0x1d506, 0x1d506, 0x1d50b, 0x1d50c, 0x1d515, 0x1d515, 0x1d51d, 0x1d51d, 0x1d53a, 0x1d53a, 0x1d53f, 0x1d53f, 0x1d545, 0x1d545, 0x1d547, 0x1d549, 0x1d551, 0x1d551, 0x1d6a4, 0x1d6a7, 0x1d7ca, 0x1d7cd, 0x1d800, 0x1fffd, 0x2a6d7, 0x2f7ff, 0x2fa1e, 0x2fffd, 0x30000, 0x3fffd, 0x40000, 0x4fffd, 0x50000, 0x5fffd, 0x60000, 0x6fffd, 0x70000, 0x7fffd, 0x80000, 0x8fffd, 0x90000, 0x9fffd, 0xa0000, 0xafffd, 0xb0000, 0xbfffd, 0xc0000, 0xcfffd, 0xd0000, 0xdfffd, 0xe0000, 0xe0000, 0xe0002, 0xe001f, 0xe0080, 0xefffd];
|
440 |
|
441 |
|
442 | const isUnassignedCodePoint = character => inRange(character, unassigned_code_points);
|
443 |
|
444 |
|
445 |
|
446 |
|
447 |
|
448 |
|
449 | const commonly_mapped_to_nothing = [0x00ad, 0x00ad, 0x034f, 0x034f, 0x1806, 0x1806, 0x180b, 0x180b, 0x180c, 0x180c, 0x180d, 0x180d, 0x200b, 0x200b, 0x200c, 0x200c, 0x200d, 0x200d, 0x2060, 0x2060, 0xfe00, 0xfe00, 0xfe01, 0xfe01, 0xfe02, 0xfe02, 0xfe03, 0xfe03, 0xfe04, 0xfe04, 0xfe05, 0xfe05, 0xfe06, 0xfe06, 0xfe07, 0xfe07, 0xfe08, 0xfe08, 0xfe09, 0xfe09, 0xfe0a, 0xfe0a, 0xfe0b, 0xfe0b, 0xfe0c, 0xfe0c, 0xfe0d, 0xfe0d, 0xfe0e, 0xfe0e, 0xfe0f, 0xfe0f, 0xfeff, 0xfeff];
|
450 |
|
451 |
|
452 | const isCommonlyMappedToNothing = character => inRange(character, commonly_mapped_to_nothing);
|
453 |
|
454 |
|
455 |
|
456 |
|
457 |
|
458 |
|
459 | const non_ASCII_space_characters = [0x00a0, 0x00a0 , 0x1680, 0x1680 , 0x2000, 0x2000 , 0x2001, 0x2001 , 0x2002, 0x2002 , 0x2003, 0x2003 , 0x2004, 0x2004 , 0x2005, 0x2005 , 0x2006, 0x2006 , 0x2007, 0x2007 , 0x2008, 0x2008 , 0x2009, 0x2009 , 0x200a, 0x200a , 0x200b, 0x200b , 0x202f, 0x202f , 0x205f, 0x205f , 0x3000, 0x3000 ];
|
460 |
|
461 |
|
462 | const isNonASCIISpaceCharacter = character => inRange(character, non_ASCII_space_characters);
|
463 |
|
464 |
|
465 | const non_ASCII_controls_characters = [
|
466 |
|
467 |
|
468 |
|
469 |
|
470 | 0x0080, 0x009f , 0x06dd, 0x06dd , 0x070f, 0x070f , 0x180e, 0x180e , 0x200c, 0x200c , 0x200d, 0x200d , 0x2028, 0x2028 , 0x2029, 0x2029 , 0x2060, 0x2060 , 0x2061, 0x2061 , 0x2062, 0x2062 , 0x2063, 0x2063 , 0x206a, 0x206f , 0xfeff, 0xfeff , 0xfff9, 0xfffc , 0x1d173, 0x1d17a ];
|
471 | const non_character_codepoints = [
|
472 |
|
473 |
|
474 |
|
475 |
|
476 | 0xfdd0, 0xfdef , 0xfffe, 0xffff , 0x1fffe, 0x1ffff , 0x2fffe, 0x2ffff , 0x3fffe, 0x3ffff , 0x4fffe, 0x4ffff , 0x5fffe, 0x5ffff , 0x6fffe, 0x6ffff , 0x7fffe, 0x7ffff , 0x8fffe, 0x8ffff , 0x9fffe, 0x9ffff , 0xafffe, 0xaffff , 0xbfffe, 0xbffff , 0xcfffe, 0xcffff , 0xdfffe, 0xdffff , 0xefffe, 0xeffff , 0x10fffe, 0x10ffff ];
|
477 |
|
478 |
|
479 |
|
480 |
|
481 | const prohibited_characters = [
|
482 |
|
483 |
|
484 |
|
485 |
|
486 | 0, 0x001f , 0x007f, 0x007f ,
|
487 |
|
488 |
|
489 |
|
490 |
|
491 | 0x0340, 0x0340 , 0x0341, 0x0341 , 0x200e, 0x200e , 0x200f, 0x200f , 0x202a, 0x202a , 0x202b, 0x202b , 0x202c, 0x202c , 0x202d, 0x202d , 0x202e, 0x202e , 0x206a, 0x206a , 0x206b, 0x206b , 0x206c, 0x206c , 0x206d, 0x206d , 0x206e, 0x206e , 0x206f, 0x206f ,
|
492 |
|
493 |
|
494 |
|
495 |
|
496 | 0x2ff0, 0x2ffb ,
|
497 |
|
498 |
|
499 |
|
500 |
|
501 | 0xd800, 0xdfff,
|
502 |
|
503 |
|
504 |
|
505 |
|
506 | 0xe000, 0xf8ff ,
|
507 |
|
508 |
|
509 |
|
510 |
|
511 | 0xfff9, 0xfff9 , 0xfffa, 0xfffa , 0xfffb, 0xfffb , 0xfffc, 0xfffc , 0xfffd, 0xfffd ,
|
512 |
|
513 |
|
514 |
|
515 |
|
516 | 0xe0001, 0xe0001 , 0xe0020, 0xe007f ,
|
517 |
|
518 |
|
519 |
|
520 |
|
521 |
|
522 | 0xf0000, 0xffffd , 0x100000, 0x10fffd ];
|
523 |
|
524 |
|
525 | const isProhibitedCharacter = character => inRange(character, non_ASCII_space_characters) || inRange(character, prohibited_characters) || inRange(character, non_ASCII_controls_characters) || inRange(character, non_character_codepoints);
|
526 |
|
527 |
|
528 |
|
529 |
|
530 |
|
531 |
|
532 | const bidirectional_r_al = [0x05be, 0x05be, 0x05c0, 0x05c0, 0x05c3, 0x05c3, 0x05d0, 0x05ea, 0x05f0, 0x05f4, 0x061b, 0x061b, 0x061f, 0x061f, 0x0621, 0x063a, 0x0640, 0x064a, 0x066d, 0x066f, 0x0671, 0x06d5, 0x06dd, 0x06dd, 0x06e5, 0x06e6, 0x06fa, 0x06fe, 0x0700, 0x070d, 0x0710, 0x0710, 0x0712, 0x072c, 0x0780, 0x07a5, 0x07b1, 0x07b1, 0x200f, 0x200f, 0xfb1d, 0xfb1d, 0xfb1f, 0xfb28, 0xfb2a, 0xfb36, 0xfb38, 0xfb3c, 0xfb3e, 0xfb3e, 0xfb40, 0xfb41, 0xfb43, 0xfb44, 0xfb46, 0xfbb1, 0xfbd3, 0xfd3d, 0xfd50, 0xfd8f, 0xfd92, 0xfdc7, 0xfdf0, 0xfdfc, 0xfe70, 0xfe74, 0xfe76, 0xfefc];
|
533 |
|
534 |
|
535 | const isBidirectionalRAL = character => inRange(character, bidirectional_r_al);
|
536 |
|
537 |
|
538 |
|
539 |
|
540 |
|
541 |
|
542 | const bidirectional_l = [0x0041, 0x005a, 0x0061, 0x007a, 0x00aa, 0x00aa, 0x00b5, 0x00b5, 0x00ba, 0x00ba, 0x00c0, 0x00d6, 0x00d8, 0x00f6, 0x00f8, 0x0220, 0x0222, 0x0233, 0x0250, 0x02ad, 0x02b0, 0x02b8, 0x02bb, 0x02c1, 0x02d0, 0x02d1, 0x02e0, 0x02e4, 0x02ee, 0x02ee, 0x037a, 0x037a, 0x0386, 0x0386, 0x0388, 0x038a, 0x038c, 0x038c, 0x038e, 0x03a1, 0x03a3, 0x03ce, 0x03d0, 0x03f5, 0x0400, 0x0482, 0x048a, 0x04ce, 0x04d0, 0x04f5, 0x04f8, 0x04f9, 0x0500, 0x050f, 0x0531, 0x0556, 0x0559, 0x055f, 0x0561, 0x0587, 0x0589, 0x0589, 0x0903, 0x0903, 0x0905, 0x0939, 0x093d, 0x0940, 0x0949, 0x094c, 0x0950, 0x0950, 0x0958, 0x0961, 0x0964, 0x0970, 0x0982, 0x0983, 0x0985, 0x098c, 0x098f, 0x0990, 0x0993, 0x09a8, 0x09aa, 0x09b0, 0x09b2, 0x09b2, 0x09b6, 0x09b9, 0x09be, 0x09c0, 0x09c7, 0x09c8, 0x09cb, 0x09cc, 0x09d7, 0x09d7, 0x09dc, 0x09dd, 0x09df, 0x09e1, 0x09e6, 0x09f1, 0x09f4, 0x09fa, 0x0a05, 0x0a0a, 0x0a0f, 0x0a10, 0x0a13, 0x0a28, 0x0a2a, 0x0a30, 0x0a32, 0x0a33, 0x0a35, 0x0a36, 0x0a38, 0x0a39, 0x0a3e, 0x0a40, 0x0a59, 0x0a5c, 0x0a5e, 0x0a5e, 0x0a66, 0x0a6f, 0x0a72, 0x0a74, 0x0a83, 0x0a83, 0x0a85, 0x0a8b, 0x0a8d, 0x0a8d, 0x0a8f, 0x0a91, 0x0a93, 0x0aa8, 0x0aaa, 0x0ab0, 0x0ab2, 0x0ab3, 0x0ab5, 0x0ab9, 0x0abd, 0x0ac0, 0x0ac9, 0x0ac9, 0x0acb, 0x0acc, 0x0ad0, 0x0ad0, 0x0ae0, 0x0ae0, 0x0ae6, 0x0aef, 0x0b02, 0x0b03, 0x0b05, 0x0b0c, 0x0b0f, 0x0b10, 0x0b13, 0x0b28, 0x0b2a, 0x0b30, 0x0b32, 0x0b33, 0x0b36, 0x0b39, 0x0b3d, 0x0b3e, 0x0b40, 0x0b40, 0x0b47, 0x0b48, 0x0b4b, 0x0b4c, 0x0b57, 0x0b57, 0x0b5c, 0x0b5d, 0x0b5f, 0x0b61, 0x0b66, 0x0b70, 0x0b83, 0x0b83, 0x0b85, 0x0b8a, 0x0b8e, 0x0b90, 0x0b92, 0x0b95, 0x0b99, 0x0b9a, 0x0b9c, 0x0b9c, 0x0b9e, 0x0b9f, 0x0ba3, 0x0ba4, 0x0ba8, 0x0baa, 0x0bae, 0x0bb5, 0x0bb7, 0x0bb9, 0x0bbe, 0x0bbf, 0x0bc1, 0x0bc2, 0x0bc6, 0x0bc8, 0x0bca, 0x0bcc, 0x0bd7, 0x0bd7, 0x0be7, 0x0bf2, 0x0c01, 0x0c03, 0x0c05, 0x0c0c, 0x0c0e, 0x0c10, 0x0c12, 0x0c28, 0x0c2a, 0x0c33, 0x0c35, 0x0c39, 0x0c41, 0x0c44, 0x0c60, 0x0c61, 0x0c66, 0x0c6f, 0x0c82, 0x0c83, 0x0c85, 0x0c8c, 0x0c8e, 0x0c90, 0x0c92, 0x0ca8, 0x0caa, 0x0cb3, 0x0cb5, 0x0cb9, 0x0cbe, 0x0cbe, 0x0cc0, 0x0cc4, 0x0cc7, 0x0cc8, 0x0cca, 0x0ccb, 0x0cd5, 0x0cd6, 0x0cde, 0x0cde, 0x0ce0, 0x0ce1, 0x0ce6, 0x0cef, 0x0d02, 0x0d03, 0x0d05, 0x0d0c, 0x0d0e, 0x0d10, 0x0d12, 0x0d28, 0x0d2a, 0x0d39, 0x0d3e, 0x0d40, 0x0d46, 0x0d48, 0x0d4a, 0x0d4c, 0x0d57, 0x0d57, 0x0d60, 0x0d61, 0x0d66, 0x0d6f, 0x0d82, 0x0d83, 0x0d85, 0x0d96, 0x0d9a, 0x0db1, 0x0db3, 0x0dbb, 0x0dbd, 0x0dbd, 0x0dc0, 0x0dc6, 0x0dcf, 0x0dd1, 0x0dd8, 0x0ddf, 0x0df2, 0x0df4, 0x0e01, 0x0e30, 0x0e32, 0x0e33, 0x0e40, 0x0e46, 0x0e4f, 0x0e5b, 0x0e81, 0x0e82, 0x0e84, 0x0e84, 0x0e87, 0x0e88, 0x0e8a, 0x0e8a, 0x0e8d, 0x0e8d, 0x0e94, 0x0e97, 0x0e99, 0x0e9f, 0x0ea1, 0x0ea3, 0x0ea5, 0x0ea5, 0x0ea7, 0x0ea7, 0x0eaa, 0x0eab, 0x0ead, 0x0eb0, 0x0eb2, 0x0eb3, 0x0ebd, 0x0ebd, 0x0ec0, 0x0ec4, 0x0ec6, 0x0ec6, 0x0ed0, 0x0ed9, 0x0edc, 0x0edd, 0x0f00, 0x0f17, 0x0f1a, 0x0f34, 0x0f36, 0x0f36, 0x0f38, 0x0f38, 0x0f3e, 0x0f47, 0x0f49, 0x0f6a, 0x0f7f, 0x0f7f, 0x0f85, 0x0f85, 0x0f88, 0x0f8b, 0x0fbe, 0x0fc5, 0x0fc7, 0x0fcc, 0x0fcf, 0x0fcf, 0x1000, 0x1021, 0x1023, 0x1027, 0x1029, 0x102a, 0x102c, 0x102c, 0x1031, 0x1031, 0x1038, 0x1038, 0x1040, 0x1057, 0x10a0, 0x10c5, 0x10d0, 0x10f8, 0x10fb, 0x10fb, 0x1100, 0x1159, 0x115f, 0x11a2, 0x11a8, 0x11f9, 0x1200, 0x1206, 0x1208, 0x1246, 0x1248, 0x1248, 0x124a, 0x124d, 0x1250, 0x1256, 0x1258, 0x1258, 0x125a, 0x125d, 0x1260, 0x1286, 0x1288, 0x1288, 0x128a, 0x128d, 0x1290, 0x12ae, 0x12b0, 0x12b0, 0x12b2, 0x12b5, 0x12b8, 0x12be, 0x12c0, 0x12c0, 0x12c2, 0x12c5, 0x12c8, 0x12ce, 0x12d0, 0x12d6, 0x12d8, 0x12ee, 0x12f0, 0x130e, 0x1310, 0x1310, 0x1312, 0x1315, 0x1318, 0x131e, 0x1320, 0x1346, 0x1348, 0x135a, 0x1361, 0x137c, 0x13a0, 0x13f4, 0x1401, 0x1676, 0x1681, 0x169a, 0x16a0, 0x16f0, 0x1700, 0x170c, 0x170e, 0x1711, 0x1720, 0x1731, 0x1735, 0x1736, 0x1740, 0x1751, 0x1760, 0x176c, 0x176e, 0x1770, 0x1780, 0x17b6, 0x17be, 0x17c5, 0x17c7, 0x17c8, 0x17d4, 0x17da, 0x17dc, 0x17dc, 0x17e0, 0x17e9, 0x1810, 0x1819, 0x1820, 0x1877, 0x1880, 0x18a8, 0x1e00, 0x1e9b, 0x1ea0, 0x1ef9, 0x1f00, 0x1f15, 0x1f18, 0x1f1d, 0x1f20, 0x1f45, 0x1f48, 0x1f4d, 0x1f50, 0x1f57, 0x1f59, 0x1f59, 0x1f5b, 0x1f5b, 0x1f5d, 0x1f5d, 0x1f5f, 0x1f7d, 0x1f80, 0x1fb4, 0x1fb6, 0x1fbc, 0x1fbe, 0x1fbe, 0x1fc2, 0x1fc4, 0x1fc6, 0x1fcc, 0x1fd0, 0x1fd3, 0x1fd6, 0x1fdb, 0x1fe0, 0x1fec, 0x1ff2, 0x1ff4, 0x1ff6, 0x1ffc, 0x200e, 0x200e, 0x2071, 0x2071, 0x207f, 0x207f, 0x2102, 0x2102, 0x2107, 0x2107, 0x210a, 0x2113, 0x2115, 0x2115, 0x2119, 0x211d, 0x2124, 0x2124, 0x2126, 0x2126, 0x2128, 0x2128, 0x212a, 0x212d, 0x212f, 0x2131, 0x2133, 0x2139, 0x213d, 0x213f, 0x2145, 0x2149, 0x2160, 0x2183, 0x2336, 0x237a, 0x2395, 0x2395, 0x249c, 0x24e9, 0x3005, 0x3007, 0x3021, 0x3029, 0x3031, 0x3035, 0x3038, 0x303c, 0x3041, 0x3096, 0x309d, 0x309f, 0x30a1, 0x30fa, 0x30fc, 0x30ff, 0x3105, 0x312c, 0x3131, 0x318e, 0x3190, 0x31b7, 0x31f0, 0x321c, 0x3220, 0x3243, 0x3260, 0x327b, 0x327f, 0x32b0, 0x32c0, 0x32cb, 0x32d0, 0x32fe, 0x3300, 0x3376, 0x337b, 0x33dd, 0x33e0, 0x33fe, 0x3400, 0x4db5, 0x4e00, 0x9fa5, 0xa000, 0xa48c, 0xac00, 0xd7a3, 0xd800, 0xfa2d, 0xfa30, 0xfa6a, 0xfb00, 0xfb06, 0xfb13, 0xfb17, 0xff21, 0xff3a, 0xff41, 0xff5a, 0xff66, 0xffbe, 0xffc2, 0xffc7, 0xffca, 0xffcf, 0xffd2, 0xffd7, 0xffda, 0xffdc, 0x10300, 0x1031e, 0x10320, 0x10323, 0x10330, 0x1034a, 0x10400, 0x10425, 0x10428, 0x1044d, 0x1d000, 0x1d0f5, 0x1d100, 0x1d126, 0x1d12a, 0x1d166, 0x1d16a, 0x1d172, 0x1d183, 0x1d184, 0x1d18c, 0x1d1a9, 0x1d1ae, 0x1d1dd, 0x1d400, 0x1d454, 0x1d456, 0x1d49c, 0x1d49e, 0x1d49f, 0x1d4a2, 0x1d4a2, 0x1d4a5, 0x1d4a6, 0x1d4a9, 0x1d4ac, 0x1d4ae, 0x1d4b9, 0x1d4bb, 0x1d4bb, 0x1d4bd, 0x1d4c0, 0x1d4c2, 0x1d4c3, 0x1d4c5, 0x1d505, 0x1d507, 0x1d50a, 0x1d50d, 0x1d514, 0x1d516, 0x1d51c, 0x1d51e, 0x1d539, 0x1d53b, 0x1d53e, 0x1d540, 0x1d544, 0x1d546, 0x1d546, 0x1d54a, 0x1d550, 0x1d552, 0x1d6a3, 0x1d6a8, 0x1d7c9, 0x20000, 0x2a6d6, 0x2f800, 0x2fa1d, 0xf0000, 0xffffd, 0x100000, 0x10fffd];
|
543 |
|
544 |
|
545 | const isBidirectionalL = character => inRange(character, bidirectional_l);
|
546 |
|
547 |
|
548 |
|
549 |
|
550 |
|
551 |
|
552 |
|
553 | const mapping2space = isNonASCIISpaceCharacter;
|
554 |
|
555 |
|
556 |
|
557 |
|
558 |
|
559 | const mapping2nothing = isCommonlyMappedToNothing;
|
560 |
|
561 |
|
562 | const getCodePoint = character => character.codePointAt(0);
|
563 | const first = x => x[0];
|
564 | const last = x => x[x.length - 1];
|
565 |
|
566 |
|
567 |
|
568 |
|
569 |
|
570 |
|
571 |
|
572 |
|
573 | function toCodePoints(input) {
|
574 | const codepoints = [];
|
575 | const size = input.length;
|
576 | for (let i = 0; i < size; i += 1) {
|
577 | const before = input.charCodeAt(i);
|
578 | if (before >= 0xd800 && before <= 0xdbff && size > i + 1) {
|
579 | const next = input.charCodeAt(i + 1);
|
580 | if (next >= 0xdc00 && next <= 0xdfff) {
|
581 | codepoints.push((before - 0xd800) * 0x400 + next - 0xdc00 + 0x10000);
|
582 | i += 1;
|
583 | continue;
|
584 | }
|
585 | }
|
586 | codepoints.push(before);
|
587 | }
|
588 | return codepoints;
|
589 | }
|
590 |
|
591 |
|
592 |
|
593 |
|
594 |
|
595 |
|
596 |
|
597 |
|
598 | function saslprep(input, opts = {}) {
|
599 | if (typeof input !== 'string') {
|
600 | throw new TypeError('Expected string.');
|
601 | }
|
602 | if (input.length === 0) {
|
603 | return '';
|
604 | }
|
605 |
|
606 |
|
607 | const mapped_input = toCodePoints(input)
|
608 |
|
609 | .map(character => mapping2space(character) ? 0x20 : character)
|
610 |
|
611 | .filter(character => !mapping2nothing(character));
|
612 |
|
613 |
|
614 | const normalized_input = String.fromCodePoint.apply(null, mapped_input).normalize('NFKC');
|
615 | const normalized_map = toCodePoints(normalized_input);
|
616 |
|
617 |
|
618 | const hasProhibited = normalized_map.some(isProhibitedCharacter);
|
619 | if (hasProhibited) {
|
620 | throw new Error('Prohibited character, see https://tools.ietf.org/html/rfc4013#section-2.3');
|
621 | }
|
622 |
|
623 |
|
624 | if (opts.allowUnassigned !== true) {
|
625 | const hasUnassigned = normalized_map.some(isUnassignedCodePoint);
|
626 | if (hasUnassigned) {
|
627 | throw new Error('Unassigned code point, see https://tools.ietf.org/html/rfc4013#section-2.5');
|
628 | }
|
629 | }
|
630 |
|
631 |
|
632 |
|
633 | const hasBidiRAL = normalized_map.some(isBidirectionalRAL);
|
634 | const hasBidiL = normalized_map.some(isBidirectionalL);
|
635 |
|
636 |
|
637 |
|
638 | if (hasBidiRAL && hasBidiL) {
|
639 | throw new Error('String must not contain RandALCat and LCat at the same time,' + ' see https://tools.ietf.org/html/rfc3454#section-6');
|
640 | }
|
641 |
|
642 | |
643 |
|
644 |
|
645 |
|
646 |
|
647 |
|
648 | const isFirstBidiRAL = isBidirectionalRAL(getCodePoint(first(normalized_input)));
|
649 | const isLastBidiRAL = isBidirectionalRAL(getCodePoint(last(normalized_input)));
|
650 | if (hasBidiRAL && !(isFirstBidiRAL && isLastBidiRAL)) {
|
651 | throw new Error('Bidirectional RandALCat character must be the first and the last' + ' character of the string, see https://tools.ietf.org/html/rfc3454#section-6');
|
652 | }
|
653 | return normalized_input;
|
654 | }
|
655 |
|
656 |
|
657 |
|
658 |
|
659 |
|
660 | class PDFSecurity {
|
661 | static generateFileID(info = {}) {
|
662 | let infoStr = `${info.CreationDate.getTime()}\n`;
|
663 | for (let key in info) {
|
664 |
|
665 | if (!info.hasOwnProperty(key)) {
|
666 | continue;
|
667 | }
|
668 | infoStr += `${key}: ${info[key].valueOf()}\n`;
|
669 | }
|
670 | return wordArrayToBuffer(CryptoJS.MD5(infoStr));
|
671 | }
|
672 | static generateRandomWordArray(bytes) {
|
673 | return CryptoJS.lib.WordArray.random(bytes);
|
674 | }
|
675 | static create(document, options = {}) {
|
676 | if (!options.ownerPassword && !options.userPassword) {
|
677 | return null;
|
678 | }
|
679 | return new PDFSecurity(document, options);
|
680 | }
|
681 | constructor(document, options = {}) {
|
682 | if (!options.ownerPassword && !options.userPassword) {
|
683 | throw new Error('None of owner password and user password is defined.');
|
684 | }
|
685 | this.document = document;
|
686 | this._setupEncryption(options);
|
687 | }
|
688 | _setupEncryption(options) {
|
689 | switch (options.pdfVersion) {
|
690 | case '1.4':
|
691 | case '1.5':
|
692 | this.version = 2;
|
693 | break;
|
694 | case '1.6':
|
695 | case '1.7':
|
696 | this.version = 4;
|
697 | break;
|
698 | case '1.7ext3':
|
699 | this.version = 5;
|
700 | break;
|
701 | default:
|
702 | this.version = 1;
|
703 | break;
|
704 | }
|
705 | const encDict = {
|
706 | Filter: 'Standard'
|
707 | };
|
708 | switch (this.version) {
|
709 | case 1:
|
710 | case 2:
|
711 | case 4:
|
712 | this._setupEncryptionV1V2V4(this.version, encDict, options);
|
713 | break;
|
714 | case 5:
|
715 | this._setupEncryptionV5(encDict, options);
|
716 | break;
|
717 | }
|
718 | this.dictionary = this.document.ref(encDict);
|
719 | }
|
720 | _setupEncryptionV1V2V4(v, encDict, options) {
|
721 | let r, permissions;
|
722 | switch (v) {
|
723 | case 1:
|
724 | r = 2;
|
725 | this.keyBits = 40;
|
726 | permissions = getPermissionsR2(options.permissions);
|
727 | break;
|
728 | case 2:
|
729 | r = 3;
|
730 | this.keyBits = 128;
|
731 | permissions = getPermissionsR3(options.permissions);
|
732 | break;
|
733 | case 4:
|
734 | r = 4;
|
735 | this.keyBits = 128;
|
736 | permissions = getPermissionsR3(options.permissions);
|
737 | break;
|
738 | }
|
739 | const paddedUserPassword = processPasswordR2R3R4(options.userPassword);
|
740 | const paddedOwnerPassword = options.ownerPassword ? processPasswordR2R3R4(options.ownerPassword) : paddedUserPassword;
|
741 | const ownerPasswordEntry = getOwnerPasswordR2R3R4(r, this.keyBits, paddedUserPassword, paddedOwnerPassword);
|
742 | this.encryptionKey = getEncryptionKeyR2R3R4(r, this.keyBits, this.document._id, paddedUserPassword, ownerPasswordEntry, permissions);
|
743 | let userPasswordEntry;
|
744 | if (r === 2) {
|
745 | userPasswordEntry = getUserPasswordR2(this.encryptionKey);
|
746 | } else {
|
747 | userPasswordEntry = getUserPasswordR3R4(this.document._id, this.encryptionKey);
|
748 | }
|
749 | encDict.V = v;
|
750 | if (v >= 2) {
|
751 | encDict.Length = this.keyBits;
|
752 | }
|
753 | if (v === 4) {
|
754 | encDict.CF = {
|
755 | StdCF: {
|
756 | AuthEvent: 'DocOpen',
|
757 | CFM: 'AESV2',
|
758 | Length: this.keyBits / 8
|
759 | }
|
760 | };
|
761 | encDict.StmF = 'StdCF';
|
762 | encDict.StrF = 'StdCF';
|
763 | }
|
764 | encDict.R = r;
|
765 | encDict.O = wordArrayToBuffer(ownerPasswordEntry);
|
766 | encDict.U = wordArrayToBuffer(userPasswordEntry);
|
767 | encDict.P = permissions;
|
768 | }
|
769 | _setupEncryptionV5(encDict, options) {
|
770 | this.keyBits = 256;
|
771 | const permissions = getPermissionsR3(options.permissions);
|
772 | const processedUserPassword = processPasswordR5(options.userPassword);
|
773 | const processedOwnerPassword = options.ownerPassword ? processPasswordR5(options.ownerPassword) : processedUserPassword;
|
774 | this.encryptionKey = getEncryptionKeyR5(PDFSecurity.generateRandomWordArray);
|
775 | const userPasswordEntry = getUserPasswordR5(processedUserPassword, PDFSecurity.generateRandomWordArray);
|
776 | const userKeySalt = CryptoJS.lib.WordArray.create(userPasswordEntry.words.slice(10, 12), 8);
|
777 | const userEncryptionKeyEntry = getUserEncryptionKeyR5(processedUserPassword, userKeySalt, this.encryptionKey);
|
778 | const ownerPasswordEntry = getOwnerPasswordR5(processedOwnerPassword, userPasswordEntry, PDFSecurity.generateRandomWordArray);
|
779 | const ownerKeySalt = CryptoJS.lib.WordArray.create(ownerPasswordEntry.words.slice(10, 12), 8);
|
780 | const ownerEncryptionKeyEntry = getOwnerEncryptionKeyR5(processedOwnerPassword, ownerKeySalt, userPasswordEntry, this.encryptionKey);
|
781 | const permsEntry = getEncryptedPermissionsR5(permissions, this.encryptionKey, PDFSecurity.generateRandomWordArray);
|
782 | encDict.V = 5;
|
783 | encDict.Length = this.keyBits;
|
784 | encDict.CF = {
|
785 | StdCF: {
|
786 | AuthEvent: 'DocOpen',
|
787 | CFM: 'AESV3',
|
788 | Length: this.keyBits / 8
|
789 | }
|
790 | };
|
791 | encDict.StmF = 'StdCF';
|
792 | encDict.StrF = 'StdCF';
|
793 | encDict.R = 5;
|
794 | encDict.O = wordArrayToBuffer(ownerPasswordEntry);
|
795 | encDict.OE = wordArrayToBuffer(ownerEncryptionKeyEntry);
|
796 | encDict.U = wordArrayToBuffer(userPasswordEntry);
|
797 | encDict.UE = wordArrayToBuffer(userEncryptionKeyEntry);
|
798 | encDict.P = permissions;
|
799 | encDict.Perms = wordArrayToBuffer(permsEntry);
|
800 | }
|
801 | getEncryptFn(obj, gen) {
|
802 | let digest;
|
803 | if (this.version < 5) {
|
804 | digest = this.encryptionKey.clone().concat(CryptoJS.lib.WordArray.create([(obj & 0xff) << 24 | (obj & 0xff00) << 8 | obj >> 8 & 0xff00 | gen & 0xff, (gen & 0xff00) << 16], 5));
|
805 | }
|
806 | if (this.version === 1 || this.version === 2) {
|
807 | let key = CryptoJS.MD5(digest);
|
808 | key.sigBytes = Math.min(16, this.keyBits / 8 + 5);
|
809 | return buffer => wordArrayToBuffer(CryptoJS.RC4.encrypt(CryptoJS.lib.WordArray.create(buffer), key).ciphertext);
|
810 | }
|
811 | let key;
|
812 | if (this.version === 4) {
|
813 | key = CryptoJS.MD5(digest.concat(CryptoJS.lib.WordArray.create([0x73416c54], 4)));
|
814 | } else {
|
815 | key = this.encryptionKey;
|
816 | }
|
817 | const iv = PDFSecurity.generateRandomWordArray(16);
|
818 | const options = {
|
819 | mode: CryptoJS.mode.CBC,
|
820 | padding: CryptoJS.pad.Pkcs7,
|
821 | iv
|
822 | };
|
823 | return buffer => wordArrayToBuffer(iv.clone().concat(CryptoJS.AES.encrypt(CryptoJS.lib.WordArray.create(buffer), key, options).ciphertext));
|
824 | }
|
825 | end() {
|
826 | this.dictionary.end();
|
827 | }
|
828 | }
|
829 | function getPermissionsR2(permissionObject = {}) {
|
830 | let permissions = 0xffffffc0 >> 0;
|
831 | if (permissionObject.printing) {
|
832 | permissions |= 0b000000000100;
|
833 | }
|
834 | if (permissionObject.modifying) {
|
835 | permissions |= 0b000000001000;
|
836 | }
|
837 | if (permissionObject.copying) {
|
838 | permissions |= 0b000000010000;
|
839 | }
|
840 | if (permissionObject.annotating) {
|
841 | permissions |= 0b000000100000;
|
842 | }
|
843 | return permissions;
|
844 | }
|
845 | function getPermissionsR3(permissionObject = {}) {
|
846 | let permissions = 0xfffff0c0 >> 0;
|
847 | if (permissionObject.printing === 'lowResolution') {
|
848 | permissions |= 0b000000000100;
|
849 | }
|
850 | if (permissionObject.printing === 'highResolution') {
|
851 | permissions |= 0b100000000100;
|
852 | }
|
853 | if (permissionObject.modifying) {
|
854 | permissions |= 0b000000001000;
|
855 | }
|
856 | if (permissionObject.copying) {
|
857 | permissions |= 0b000000010000;
|
858 | }
|
859 | if (permissionObject.annotating) {
|
860 | permissions |= 0b000000100000;
|
861 | }
|
862 | if (permissionObject.fillingForms) {
|
863 | permissions |= 0b000100000000;
|
864 | }
|
865 | if (permissionObject.contentAccessibility) {
|
866 | permissions |= 0b001000000000;
|
867 | }
|
868 | if (permissionObject.documentAssembly) {
|
869 | permissions |= 0b010000000000;
|
870 | }
|
871 | return permissions;
|
872 | }
|
873 | function getUserPasswordR2(encryptionKey) {
|
874 | return CryptoJS.RC4.encrypt(processPasswordR2R3R4(), encryptionKey).ciphertext;
|
875 | }
|
876 | function getUserPasswordR3R4(documentId, encryptionKey) {
|
877 | const key = encryptionKey.clone();
|
878 | let cipher = CryptoJS.MD5(processPasswordR2R3R4().concat(CryptoJS.lib.WordArray.create(documentId)));
|
879 | for (let i = 0; i < 20; i++) {
|
880 | const xorRound = Math.ceil(key.sigBytes / 4);
|
881 | for (let j = 0; j < xorRound; j++) {
|
882 | key.words[j] = encryptionKey.words[j] ^ (i | i << 8 | i << 16 | i << 24);
|
883 | }
|
884 | cipher = CryptoJS.RC4.encrypt(cipher, key).ciphertext;
|
885 | }
|
886 | return cipher.concat(CryptoJS.lib.WordArray.create(null, 16));
|
887 | }
|
888 | function getOwnerPasswordR2R3R4(r, keyBits, paddedUserPassword, paddedOwnerPassword) {
|
889 | let digest = paddedOwnerPassword;
|
890 | let round = r >= 3 ? 51 : 1;
|
891 | for (let i = 0; i < round; i++) {
|
892 | digest = CryptoJS.MD5(digest);
|
893 | }
|
894 | const key = digest.clone();
|
895 | key.sigBytes = keyBits / 8;
|
896 | let cipher = paddedUserPassword;
|
897 | round = r >= 3 ? 20 : 1;
|
898 | for (let i = 0; i < round; i++) {
|
899 | const xorRound = Math.ceil(key.sigBytes / 4);
|
900 | for (let j = 0; j < xorRound; j++) {
|
901 | key.words[j] = digest.words[j] ^ (i | i << 8 | i << 16 | i << 24);
|
902 | }
|
903 | cipher = CryptoJS.RC4.encrypt(cipher, key).ciphertext;
|
904 | }
|
905 | return cipher;
|
906 | }
|
907 | function getEncryptionKeyR2R3R4(r, keyBits, documentId, paddedUserPassword, ownerPasswordEntry, permissions) {
|
908 | let key = paddedUserPassword.clone().concat(ownerPasswordEntry).concat(CryptoJS.lib.WordArray.create([lsbFirstWord(permissions)], 4)).concat(CryptoJS.lib.WordArray.create(documentId));
|
909 | const round = r >= 3 ? 51 : 1;
|
910 | for (let i = 0; i < round; i++) {
|
911 | key = CryptoJS.MD5(key);
|
912 | key.sigBytes = keyBits / 8;
|
913 | }
|
914 | return key;
|
915 | }
|
916 | function getUserPasswordR5(processedUserPassword, generateRandomWordArray) {
|
917 | const validationSalt = generateRandomWordArray(8);
|
918 | const keySalt = generateRandomWordArray(8);
|
919 | return CryptoJS.SHA256(processedUserPassword.clone().concat(validationSalt)).concat(validationSalt).concat(keySalt);
|
920 | }
|
921 | function getUserEncryptionKeyR5(processedUserPassword, userKeySalt, encryptionKey) {
|
922 | const key = CryptoJS.SHA256(processedUserPassword.clone().concat(userKeySalt));
|
923 | const options = {
|
924 | mode: CryptoJS.mode.CBC,
|
925 | padding: CryptoJS.pad.NoPadding,
|
926 | iv: CryptoJS.lib.WordArray.create(null, 16)
|
927 | };
|
928 | return CryptoJS.AES.encrypt(encryptionKey, key, options).ciphertext;
|
929 | }
|
930 | function getOwnerPasswordR5(processedOwnerPassword, userPasswordEntry, generateRandomWordArray) {
|
931 | const validationSalt = generateRandomWordArray(8);
|
932 | const keySalt = generateRandomWordArray(8);
|
933 | return CryptoJS.SHA256(processedOwnerPassword.clone().concat(validationSalt).concat(userPasswordEntry)).concat(validationSalt).concat(keySalt);
|
934 | }
|
935 | function getOwnerEncryptionKeyR5(processedOwnerPassword, ownerKeySalt, userPasswordEntry, encryptionKey) {
|
936 | const key = CryptoJS.SHA256(processedOwnerPassword.clone().concat(ownerKeySalt).concat(userPasswordEntry));
|
937 | const options = {
|
938 | mode: CryptoJS.mode.CBC,
|
939 | padding: CryptoJS.pad.NoPadding,
|
940 | iv: CryptoJS.lib.WordArray.create(null, 16)
|
941 | };
|
942 | return CryptoJS.AES.encrypt(encryptionKey, key, options).ciphertext;
|
943 | }
|
944 | function getEncryptionKeyR5(generateRandomWordArray) {
|
945 | return generateRandomWordArray(32);
|
946 | }
|
947 | function getEncryptedPermissionsR5(permissions, encryptionKey, generateRandomWordArray) {
|
948 | const cipher = CryptoJS.lib.WordArray.create([lsbFirstWord(permissions), 0xffffffff, 0x54616462], 12).concat(generateRandomWordArray(4));
|
949 | const options = {
|
950 | mode: CryptoJS.mode.ECB,
|
951 | padding: CryptoJS.pad.NoPadding
|
952 | };
|
953 | return CryptoJS.AES.encrypt(cipher, encryptionKey, options).ciphertext;
|
954 | }
|
955 | function processPasswordR2R3R4(password = '') {
|
956 | const out = Buffer.alloc(32);
|
957 | const length = password.length;
|
958 | let index = 0;
|
959 | while (index < length && index < 32) {
|
960 | const code = password.charCodeAt(index);
|
961 | if (code > 0xff) {
|
962 | throw new Error('Password contains one or more invalid characters.');
|
963 | }
|
964 | out[index] = code;
|
965 | index++;
|
966 | }
|
967 | while (index < 32) {
|
968 | out[index] = PASSWORD_PADDING[index - length];
|
969 | index++;
|
970 | }
|
971 | return CryptoJS.lib.WordArray.create(out);
|
972 | }
|
973 | function processPasswordR5(password = '') {
|
974 | password = unescape(encodeURIComponent(saslprep(password)));
|
975 | const length = Math.min(127, password.length);
|
976 | const out = Buffer.alloc(length);
|
977 | for (let i = 0; i < length; i++) {
|
978 | out[i] = password.charCodeAt(i);
|
979 | }
|
980 | return CryptoJS.lib.WordArray.create(out);
|
981 | }
|
982 | function lsbFirstWord(data) {
|
983 | return (data & 0xff) << 24 | (data & 0xff00) << 8 | data >> 8 & 0xff00 | data >> 24 & 0xff;
|
984 | }
|
985 | function wordArrayToBuffer(wordArray) {
|
986 | const byteArray = [];
|
987 | for (let i = 0; i < wordArray.sigBytes; i++) {
|
988 | byteArray.push(wordArray.words[Math.floor(i / 4)] >> 8 * (3 - i % 4) & 0xff);
|
989 | }
|
990 | return Buffer.from(byteArray);
|
991 | }
|
992 | const PASSWORD_PADDING = [0x28, 0xbf, 0x4e, 0x5e, 0x4e, 0x75, 0x8a, 0x41, 0x64, 0x00, 0x4e, 0x56, 0xff, 0xfa, 0x01, 0x08, 0x2e, 0x2e, 0x00, 0xb6, 0xd0, 0x68, 0x3e, 0x80, 0x2f, 0x0c, 0xa9, 0xfe, 0x64, 0x53, 0x69, 0x7a];
|
993 |
|
994 | const {
|
995 | number
|
996 | } = PDFObject;
|
997 | class PDFGradient {
|
998 | constructor(doc) {
|
999 | this.doc = doc;
|
1000 | this.stops = [];
|
1001 | this.embedded = false;
|
1002 | this.transform = [1, 0, 0, 1, 0, 0];
|
1003 | }
|
1004 | stop(pos, color, opacity) {
|
1005 | if (opacity == null) {
|
1006 | opacity = 1;
|
1007 | }
|
1008 | color = this.doc._normalizeColor(color);
|
1009 | if (this.stops.length === 0) {
|
1010 | if (color.length === 3) {
|
1011 | this._colorSpace = 'DeviceRGB';
|
1012 | } else if (color.length === 4) {
|
1013 | this._colorSpace = 'DeviceCMYK';
|
1014 | } else if (color.length === 1) {
|
1015 | this._colorSpace = 'DeviceGray';
|
1016 | } else {
|
1017 | throw new Error('Unknown color space');
|
1018 | }
|
1019 | } else if (this._colorSpace === 'DeviceRGB' && color.length !== 3 || this._colorSpace === 'DeviceCMYK' && color.length !== 4 || this._colorSpace === 'DeviceGray' && color.length !== 1) {
|
1020 | throw new Error('All gradient stops must use the same color space');
|
1021 | }
|
1022 | opacity = Math.max(0, Math.min(1, opacity));
|
1023 | this.stops.push([pos, color, opacity]);
|
1024 | return this;
|
1025 | }
|
1026 | setTransform(m11, m12, m21, m22, dx, dy) {
|
1027 | this.transform = [m11, m12, m21, m22, dx, dy];
|
1028 | return this;
|
1029 | }
|
1030 | embed(m) {
|
1031 | let fn;
|
1032 | const stopsLength = this.stops.length;
|
1033 | if (stopsLength === 0) {
|
1034 | return;
|
1035 | }
|
1036 | this.embedded = true;
|
1037 | this.matrix = m;
|
1038 |
|
1039 |
|
1040 | const last = this.stops[stopsLength - 1];
|
1041 | if (last[0] < 1) {
|
1042 | this.stops.push([1, last[1], last[2]]);
|
1043 | }
|
1044 | const bounds = [];
|
1045 | const encode = [];
|
1046 | const stops = [];
|
1047 | for (let i = 0; i < stopsLength - 1; i++) {
|
1048 | encode.push(0, 1);
|
1049 | if (i + 2 !== stopsLength) {
|
1050 | bounds.push(this.stops[i + 1][0]);
|
1051 | }
|
1052 | fn = this.doc.ref({
|
1053 | FunctionType: 2,
|
1054 | Domain: [0, 1],
|
1055 | C0: this.stops[i + 0][1],
|
1056 | C1: this.stops[i + 1][1],
|
1057 | N: 1
|
1058 | });
|
1059 | stops.push(fn);
|
1060 | fn.end();
|
1061 | }
|
1062 |
|
1063 |
|
1064 | if (stopsLength === 1) {
|
1065 | fn = stops[0];
|
1066 | } else {
|
1067 | fn = this.doc.ref({
|
1068 | FunctionType: 3,
|
1069 |
|
1070 | Domain: [0, 1],
|
1071 | Functions: stops,
|
1072 | Bounds: bounds,
|
1073 | Encode: encode
|
1074 | });
|
1075 | fn.end();
|
1076 | }
|
1077 | this.id = `Sh${++this.doc._gradCount}`;
|
1078 | const shader = this.shader(fn);
|
1079 | shader.end();
|
1080 | const pattern = this.doc.ref({
|
1081 | Type: 'Pattern',
|
1082 | PatternType: 2,
|
1083 | Shading: shader,
|
1084 | Matrix: this.matrix.map(number)
|
1085 | });
|
1086 | pattern.end();
|
1087 | if (this.stops.some(stop => stop[2] < 1)) {
|
1088 | let grad = this.opacityGradient();
|
1089 | grad._colorSpace = 'DeviceGray';
|
1090 | for (let stop of this.stops) {
|
1091 | grad.stop(stop[0], [stop[2]]);
|
1092 | }
|
1093 | grad = grad.embed(this.matrix);
|
1094 | const pageBBox = [0, 0, this.doc.page.width, this.doc.page.height];
|
1095 | const form = this.doc.ref({
|
1096 | Type: 'XObject',
|
1097 | Subtype: 'Form',
|
1098 | FormType: 1,
|
1099 | BBox: pageBBox,
|
1100 | Group: {
|
1101 | Type: 'Group',
|
1102 | S: 'Transparency',
|
1103 | CS: 'DeviceGray'
|
1104 | },
|
1105 | Resources: {
|
1106 | ProcSet: ['PDF', 'Text', 'ImageB', 'ImageC', 'ImageI'],
|
1107 | Pattern: {
|
1108 | Sh1: grad
|
1109 | }
|
1110 | }
|
1111 | });
|
1112 | form.write('/Pattern cs /Sh1 scn');
|
1113 | form.end(`${pageBBox.join(' ')} re f`);
|
1114 | const gstate = this.doc.ref({
|
1115 | Type: 'ExtGState',
|
1116 | SMask: {
|
1117 | Type: 'Mask',
|
1118 | S: 'Luminosity',
|
1119 | G: form
|
1120 | }
|
1121 | });
|
1122 | gstate.end();
|
1123 | const opacityPattern = this.doc.ref({
|
1124 | Type: 'Pattern',
|
1125 | PatternType: 1,
|
1126 | PaintType: 1,
|
1127 | TilingType: 2,
|
1128 | BBox: pageBBox,
|
1129 | XStep: pageBBox[2],
|
1130 | YStep: pageBBox[3],
|
1131 | Resources: {
|
1132 | ProcSet: ['PDF', 'Text', 'ImageB', 'ImageC', 'ImageI'],
|
1133 | Pattern: {
|
1134 | Sh1: pattern
|
1135 | },
|
1136 | ExtGState: {
|
1137 | Gs1: gstate
|
1138 | }
|
1139 | }
|
1140 | });
|
1141 | opacityPattern.write('/Gs1 gs /Pattern cs /Sh1 scn');
|
1142 | opacityPattern.end(`${pageBBox.join(' ')} re f`);
|
1143 | this.doc.page.patterns[this.id] = opacityPattern;
|
1144 | } else {
|
1145 | this.doc.page.patterns[this.id] = pattern;
|
1146 | }
|
1147 | return pattern;
|
1148 | }
|
1149 | apply(stroke) {
|
1150 |
|
1151 | const [m0, m1, m2, m3, m4, m5] = this.doc._ctm;
|
1152 | const [m11, m12, m21, m22, dx, dy] = this.transform;
|
1153 | const m = [m0 * m11 + m2 * m12, m1 * m11 + m3 * m12, m0 * m21 + m2 * m22, m1 * m21 + m3 * m22, m0 * dx + m2 * dy + m4, m1 * dx + m3 * dy + m5];
|
1154 | if (!this.embedded || m.join(' ') !== this.matrix.join(' ')) {
|
1155 | this.embed(m);
|
1156 | }
|
1157 | this.doc._setColorSpace('Pattern', stroke);
|
1158 | const op = stroke ? 'SCN' : 'scn';
|
1159 | return this.doc.addContent(`/${this.id} ${op}`);
|
1160 | }
|
1161 | }
|
1162 | class PDFLinearGradient extends PDFGradient {
|
1163 | constructor(doc, x1, y1, x2, y2) {
|
1164 | super(doc);
|
1165 | this.x1 = x1;
|
1166 | this.y1 = y1;
|
1167 | this.x2 = x2;
|
1168 | this.y2 = y2;
|
1169 | }
|
1170 | shader(fn) {
|
1171 | return this.doc.ref({
|
1172 | ShadingType: 2,
|
1173 | ColorSpace: this._colorSpace,
|
1174 | Coords: [this.x1, this.y1, this.x2, this.y2],
|
1175 | Function: fn,
|
1176 | Extend: [true, true]
|
1177 | });
|
1178 | }
|
1179 | opacityGradient() {
|
1180 | return new PDFLinearGradient(this.doc, this.x1, this.y1, this.x2, this.y2);
|
1181 | }
|
1182 | }
|
1183 | class PDFRadialGradient extends PDFGradient {
|
1184 | constructor(doc, x1, y1, r1, x2, y2, r2) {
|
1185 | super(doc);
|
1186 | this.doc = doc;
|
1187 | this.x1 = x1;
|
1188 | this.y1 = y1;
|
1189 | this.r1 = r1;
|
1190 | this.x2 = x2;
|
1191 | this.y2 = y2;
|
1192 | this.r2 = r2;
|
1193 | }
|
1194 | shader(fn) {
|
1195 | return this.doc.ref({
|
1196 | ShadingType: 3,
|
1197 | ColorSpace: this._colorSpace,
|
1198 | Coords: [this.x1, this.y1, this.r1, this.x2, this.y2, this.r2],
|
1199 | Function: fn,
|
1200 | Extend: [true, true]
|
1201 | });
|
1202 | }
|
1203 | opacityGradient() {
|
1204 | return new PDFRadialGradient(this.doc, this.x1, this.y1, this.r1, this.x2, this.y2, this.r2);
|
1205 | }
|
1206 | }
|
1207 | var Gradient = {
|
1208 | PDFGradient,
|
1209 | PDFLinearGradient,
|
1210 | PDFRadialGradient
|
1211 | };
|
1212 |
|
1213 |
|
1214 |
|
1215 |
|
1216 |
|
1217 | const underlyingColorSpaces = ['DeviceCMYK', 'DeviceRGB'];
|
1218 | class PDFTilingPattern {
|
1219 | constructor(doc, bBox, xStep, yStep, stream) {
|
1220 | this.doc = doc;
|
1221 | this.bBox = bBox;
|
1222 | this.xStep = xStep;
|
1223 | this.yStep = yStep;
|
1224 | this.stream = stream;
|
1225 | }
|
1226 | createPattern() {
|
1227 |
|
1228 |
|
1229 | const resources = this.doc.ref();
|
1230 | resources.end();
|
1231 |
|
1232 |
|
1233 | const [m0, m1, m2, m3, m4, m5] = this.doc._ctm;
|
1234 | const [m11, m12, m21, m22, dx, dy] = [1, 0, 0, 1, 0, 0];
|
1235 | const m = [m0 * m11 + m2 * m12, m1 * m11 + m3 * m12, m0 * m21 + m2 * m22, m1 * m21 + m3 * m22, m0 * dx + m2 * dy + m4, m1 * dx + m3 * dy + m5];
|
1236 | const pattern = this.doc.ref({
|
1237 | Type: 'Pattern',
|
1238 | PatternType: 1,
|
1239 |
|
1240 | PaintType: 2,
|
1241 |
|
1242 | TilingType: 2,
|
1243 |
|
1244 | BBox: this.bBox,
|
1245 | XStep: this.xStep,
|
1246 | YStep: this.yStep,
|
1247 | Matrix: m.map(v => +v.toFixed(5)),
|
1248 | Resources: resources
|
1249 | });
|
1250 | pattern.end(this.stream);
|
1251 | return pattern;
|
1252 | }
|
1253 | embedPatternColorSpaces() {
|
1254 |
|
1255 |
|
1256 | underlyingColorSpaces.forEach(csName => {
|
1257 | const csId = this.getPatternColorSpaceId(csName);
|
1258 | if (this.doc.page.colorSpaces[csId]) return;
|
1259 | const cs = this.doc.ref(['Pattern', csName]);
|
1260 | cs.end();
|
1261 | this.doc.page.colorSpaces[csId] = cs;
|
1262 | });
|
1263 | }
|
1264 | getPatternColorSpaceId(underlyingColorspace) {
|
1265 | return `CsP${underlyingColorspace}`;
|
1266 | }
|
1267 | embed() {
|
1268 | if (!this.id) {
|
1269 | this.doc._patternCount = this.doc._patternCount + 1;
|
1270 | this.id = 'P' + this.doc._patternCount;
|
1271 | this.pattern = this.createPattern();
|
1272 | }
|
1273 |
|
1274 |
|
1275 | if (!this.doc.page.patterns[this.id]) {
|
1276 | this.doc.page.patterns[this.id] = this.pattern;
|
1277 | }
|
1278 | }
|
1279 | apply(stroke, patternColor) {
|
1280 |
|
1281 | this.embedPatternColorSpaces();
|
1282 | this.embed();
|
1283 | const normalizedColor = this.doc._normalizeColor(patternColor);
|
1284 | if (!normalizedColor) throw Error(`invalid pattern color. (value: ${patternColor})`);
|
1285 |
|
1286 |
|
1287 | const csId = this.getPatternColorSpaceId(this.doc._getColorSpace(normalizedColor));
|
1288 | this.doc._setColorSpace(csId, stroke);
|
1289 |
|
1290 |
|
1291 | const op = stroke ? 'SCN' : 'scn';
|
1292 | return this.doc.addContent(`${normalizedColor.join(' ')} /${this.id} ${op}`);
|
1293 | }
|
1294 | }
|
1295 | var pattern = {
|
1296 | PDFTilingPattern
|
1297 | };
|
1298 |
|
1299 | const {
|
1300 | PDFGradient: PDFGradient$1,
|
1301 | PDFLinearGradient: PDFLinearGradient$1,
|
1302 | PDFRadialGradient: PDFRadialGradient$1
|
1303 | } = Gradient;
|
1304 | const {
|
1305 | PDFTilingPattern: PDFTilingPattern$1
|
1306 | } = pattern;
|
1307 | var ColorMixin = {
|
1308 | initColor() {
|
1309 |
|
1310 | this._opacityRegistry = {};
|
1311 | this._opacityCount = 0;
|
1312 | this._patternCount = 0;
|
1313 | return this._gradCount = 0;
|
1314 | },
|
1315 | _normalizeColor(color) {
|
1316 | if (typeof color === 'string') {
|
1317 | if (color.charAt(0) === '#') {
|
1318 | if (color.length === 4) {
|
1319 | color = color.replace(/#([0-9A-F])([0-9A-F])([0-9A-F])/i, '#$1$1$2$2$3$3');
|
1320 | }
|
1321 | const hex = parseInt(color.slice(1), 16);
|
1322 | color = [hex >> 16, hex >> 8 & 0xff, hex & 0xff];
|
1323 | } else if (namedColors[color]) {
|
1324 | color = namedColors[color];
|
1325 | }
|
1326 | }
|
1327 | if (Array.isArray(color)) {
|
1328 |
|
1329 | if (color.length === 3) {
|
1330 | color = color.map(part => part / 255);
|
1331 |
|
1332 | } else if (color.length === 4) {
|
1333 | color = color.map(part => part / 100);
|
1334 | }
|
1335 | return color;
|
1336 | }
|
1337 | return null;
|
1338 | },
|
1339 | _setColor(color, stroke) {
|
1340 | if (color instanceof PDFGradient$1) {
|
1341 | color.apply(stroke);
|
1342 | return true;
|
1343 |
|
1344 | } else if (Array.isArray(color) && color[0] instanceof PDFTilingPattern$1) {
|
1345 | color[0].apply(stroke, color[1]);
|
1346 | return true;
|
1347 | }
|
1348 |
|
1349 | return this._setColorCore(color, stroke);
|
1350 | },
|
1351 | _setColorCore(color, stroke) {
|
1352 | color = this._normalizeColor(color);
|
1353 | if (!color) {
|
1354 | return false;
|
1355 | }
|
1356 | const op = stroke ? 'SCN' : 'scn';
|
1357 | const space = this._getColorSpace(color);
|
1358 | this._setColorSpace(space, stroke);
|
1359 | color = color.join(' ');
|
1360 | this.addContent(`${color} ${op}`);
|
1361 | return true;
|
1362 | },
|
1363 | _setColorSpace(space, stroke) {
|
1364 | const op = stroke ? 'CS' : 'cs';
|
1365 | return this.addContent(`/${space} ${op}`);
|
1366 | },
|
1367 | _getColorSpace(color) {
|
1368 | return color.length === 4 ? 'DeviceCMYK' : 'DeviceRGB';
|
1369 | },
|
1370 | fillColor(color, opacity) {
|
1371 | const set = this._setColor(color, false);
|
1372 | if (set) {
|
1373 | this.fillOpacity(opacity);
|
1374 | }
|
1375 |
|
1376 |
|
1377 |
|
1378 | this._fillColor = [color, opacity];
|
1379 | return this;
|
1380 | },
|
1381 | strokeColor(color, opacity) {
|
1382 | const set = this._setColor(color, true);
|
1383 | if (set) {
|
1384 | this.strokeOpacity(opacity);
|
1385 | }
|
1386 | return this;
|
1387 | },
|
1388 | opacity(opacity) {
|
1389 | this._doOpacity(opacity, opacity);
|
1390 | return this;
|
1391 | },
|
1392 | fillOpacity(opacity) {
|
1393 | this._doOpacity(opacity, null);
|
1394 | return this;
|
1395 | },
|
1396 | strokeOpacity(opacity) {
|
1397 | this._doOpacity(null, opacity);
|
1398 | return this;
|
1399 | },
|
1400 | _doOpacity(fillOpacity, strokeOpacity) {
|
1401 | let dictionary, name;
|
1402 | if (fillOpacity == null && strokeOpacity == null) {
|
1403 | return;
|
1404 | }
|
1405 | if (fillOpacity != null) {
|
1406 | fillOpacity = Math.max(0, Math.min(1, fillOpacity));
|
1407 | }
|
1408 | if (strokeOpacity != null) {
|
1409 | strokeOpacity = Math.max(0, Math.min(1, strokeOpacity));
|
1410 | }
|
1411 | const key = `${fillOpacity}_${strokeOpacity}`;
|
1412 | if (this._opacityRegistry[key]) {
|
1413 | [dictionary, name] = this._opacityRegistry[key];
|
1414 | } else {
|
1415 | dictionary = {
|
1416 | Type: 'ExtGState'
|
1417 | };
|
1418 | if (fillOpacity != null) {
|
1419 | dictionary.ca = fillOpacity;
|
1420 | }
|
1421 | if (strokeOpacity != null) {
|
1422 | dictionary.CA = strokeOpacity;
|
1423 | }
|
1424 | dictionary = this.ref(dictionary);
|
1425 | dictionary.end();
|
1426 | const id = ++this._opacityCount;
|
1427 | name = `Gs${id}`;
|
1428 | this._opacityRegistry[key] = [dictionary, name];
|
1429 | }
|
1430 | this.page.ext_gstates[name] = dictionary;
|
1431 | return this.addContent(`/${name} gs`);
|
1432 | },
|
1433 | linearGradient(x1, y1, x2, y2) {
|
1434 | return new PDFLinearGradient$1(this, x1, y1, x2, y2);
|
1435 | },
|
1436 | radialGradient(x1, y1, r1, x2, y2, r2) {
|
1437 | return new PDFRadialGradient$1(this, x1, y1, r1, x2, y2, r2);
|
1438 | },
|
1439 | pattern(bbox, xStep, yStep, stream) {
|
1440 | return new PDFTilingPattern$1(this, bbox, xStep, yStep, stream);
|
1441 | }
|
1442 | };
|
1443 | var namedColors = {
|
1444 | aliceblue: [240, 248, 255],
|
1445 | antiquewhite: [250, 235, 215],
|
1446 | aqua: [0, 255, 255],
|
1447 | aquamarine: [127, 255, 212],
|
1448 | azure: [240, 255, 255],
|
1449 | beige: [245, 245, 220],
|
1450 | bisque: [255, 228, 196],
|
1451 | black: [0, 0, 0],
|
1452 | blanchedalmond: [255, 235, 205],
|
1453 | blue: [0, 0, 255],
|
1454 | blueviolet: [138, 43, 226],
|
1455 | brown: [165, 42, 42],
|
1456 | burlywood: [222, 184, 135],
|
1457 | cadetblue: [95, 158, 160],
|
1458 | chartreuse: [127, 255, 0],
|
1459 | chocolate: [210, 105, 30],
|
1460 | coral: [255, 127, 80],
|
1461 | cornflowerblue: [100, 149, 237],
|
1462 | cornsilk: [255, 248, 220],
|
1463 | crimson: [220, 20, 60],
|
1464 | cyan: [0, 255, 255],
|
1465 | darkblue: [0, 0, 139],
|
1466 | darkcyan: [0, 139, 139],
|
1467 | darkgoldenrod: [184, 134, 11],
|
1468 | darkgray: [169, 169, 169],
|
1469 | darkgreen: [0, 100, 0],
|
1470 | darkgrey: [169, 169, 169],
|
1471 | darkkhaki: [189, 183, 107],
|
1472 | darkmagenta: [139, 0, 139],
|
1473 | darkolivegreen: [85, 107, 47],
|
1474 | darkorange: [255, 140, 0],
|
1475 | darkorchid: [153, 50, 204],
|
1476 | darkred: [139, 0, 0],
|
1477 | darksalmon: [233, 150, 122],
|
1478 | darkseagreen: [143, 188, 143],
|
1479 | darkslateblue: [72, 61, 139],
|
1480 | darkslategray: [47, 79, 79],
|
1481 | darkslategrey: [47, 79, 79],
|
1482 | darkturquoise: [0, 206, 209],
|
1483 | darkviolet: [148, 0, 211],
|
1484 | deeppink: [255, 20, 147],
|
1485 | deepskyblue: [0, 191, 255],
|
1486 | dimgray: [105, 105, 105],
|
1487 | dimgrey: [105, 105, 105],
|
1488 | dodgerblue: [30, 144, 255],
|
1489 | firebrick: [178, 34, 34],
|
1490 | floralwhite: [255, 250, 240],
|
1491 | forestgreen: [34, 139, 34],
|
1492 | fuchsia: [255, 0, 255],
|
1493 | gainsboro: [220, 220, 220],
|
1494 | ghostwhite: [248, 248, 255],
|
1495 | gold: [255, 215, 0],
|
1496 | goldenrod: [218, 165, 32],
|
1497 | gray: [128, 128, 128],
|
1498 | grey: [128, 128, 128],
|
1499 | green: [0, 128, 0],
|
1500 | greenyellow: [173, 255, 47],
|
1501 | honeydew: [240, 255, 240],
|
1502 | hotpink: [255, 105, 180],
|
1503 | indianred: [205, 92, 92],
|
1504 | indigo: [75, 0, 130],
|
1505 | ivory: [255, 255, 240],
|
1506 | khaki: [240, 230, 140],
|
1507 | lavender: [230, 230, 250],
|
1508 | lavenderblush: [255, 240, 245],
|
1509 | lawngreen: [124, 252, 0],
|
1510 | lemonchiffon: [255, 250, 205],
|
1511 | lightblue: [173, 216, 230],
|
1512 | lightcoral: [240, 128, 128],
|
1513 | lightcyan: [224, 255, 255],
|
1514 | lightgoldenrodyellow: [250, 250, 210],
|
1515 | lightgray: [211, 211, 211],
|
1516 | lightgreen: [144, 238, 144],
|
1517 | lightgrey: [211, 211, 211],
|
1518 | lightpink: [255, 182, 193],
|
1519 | lightsalmon: [255, 160, 122],
|
1520 | lightseagreen: [32, 178, 170],
|
1521 | lightskyblue: [135, 206, 250],
|
1522 | lightslategray: [119, 136, 153],
|
1523 | lightslategrey: [119, 136, 153],
|
1524 | lightsteelblue: [176, 196, 222],
|
1525 | lightyellow: [255, 255, 224],
|
1526 | lime: [0, 255, 0],
|
1527 | limegreen: [50, 205, 50],
|
1528 | linen: [250, 240, 230],
|
1529 | magenta: [255, 0, 255],
|
1530 | maroon: [128, 0, 0],
|
1531 | mediumaquamarine: [102, 205, 170],
|
1532 | mediumblue: [0, 0, 205],
|
1533 | mediumorchid: [186, 85, 211],
|
1534 | mediumpurple: [147, 112, 219],
|
1535 | mediumseagreen: [60, 179, 113],
|
1536 | mediumslateblue: [123, 104, 238],
|
1537 | mediumspringgreen: [0, 250, 154],
|
1538 | mediumturquoise: [72, 209, 204],
|
1539 | mediumvioletred: [199, 21, 133],
|
1540 | midnightblue: [25, 25, 112],
|
1541 | mintcream: [245, 255, 250],
|
1542 | mistyrose: [255, 228, 225],
|
1543 | moccasin: [255, 228, 181],
|
1544 | navajowhite: [255, 222, 173],
|
1545 | navy: [0, 0, 128],
|
1546 | oldlace: [253, 245, 230],
|
1547 | olive: [128, 128, 0],
|
1548 | olivedrab: [107, 142, 35],
|
1549 | orange: [255, 165, 0],
|
1550 | orangered: [255, 69, 0],
|
1551 | orchid: [218, 112, 214],
|
1552 | palegoldenrod: [238, 232, 170],
|
1553 | palegreen: [152, 251, 152],
|
1554 | paleturquoise: [175, 238, 238],
|
1555 | palevioletred: [219, 112, 147],
|
1556 | papayawhip: [255, 239, 213],
|
1557 | peachpuff: [255, 218, 185],
|
1558 | peru: [205, 133, 63],
|
1559 | pink: [255, 192, 203],
|
1560 | plum: [221, 160, 221],
|
1561 | powderblue: [176, 224, 230],
|
1562 | purple: [128, 0, 128],
|
1563 | red: [255, 0, 0],
|
1564 | rosybrown: [188, 143, 143],
|
1565 | royalblue: [65, 105, 225],
|
1566 | saddlebrown: [139, 69, 19],
|
1567 | salmon: [250, 128, 114],
|
1568 | sandybrown: [244, 164, 96],
|
1569 | seagreen: [46, 139, 87],
|
1570 | seashell: [255, 245, 238],
|
1571 | sienna: [160, 82, 45],
|
1572 | silver: [192, 192, 192],
|
1573 | skyblue: [135, 206, 235],
|
1574 | slateblue: [106, 90, 205],
|
1575 | slategray: [112, 128, 144],
|
1576 | slategrey: [112, 128, 144],
|
1577 | snow: [255, 250, 250],
|
1578 | springgreen: [0, 255, 127],
|
1579 | steelblue: [70, 130, 180],
|
1580 | tan: [210, 180, 140],
|
1581 | teal: [0, 128, 128],
|
1582 | thistle: [216, 191, 216],
|
1583 | tomato: [255, 99, 71],
|
1584 | turquoise: [64, 224, 208],
|
1585 | violet: [238, 130, 238],
|
1586 | wheat: [245, 222, 179],
|
1587 | white: [255, 255, 255],
|
1588 | whitesmoke: [245, 245, 245],
|
1589 | yellow: [255, 255, 0],
|
1590 | yellowgreen: [154, 205, 50]
|
1591 | };
|
1592 |
|
1593 | let cx, cy, px, py, sx, sy;
|
1594 | cx = cy = px = py = sx = sy = 0;
|
1595 | const parameters = {
|
1596 | A: 7,
|
1597 | a: 7,
|
1598 | C: 6,
|
1599 | c: 6,
|
1600 | H: 1,
|
1601 | h: 1,
|
1602 | L: 2,
|
1603 | l: 2,
|
1604 | M: 2,
|
1605 | m: 2,
|
1606 | Q: 4,
|
1607 | q: 4,
|
1608 | S: 4,
|
1609 | s: 4,
|
1610 | T: 2,
|
1611 | t: 2,
|
1612 | V: 1,
|
1613 | v: 1,
|
1614 | Z: 0,
|
1615 | z: 0
|
1616 | };
|
1617 | const parse = function (path) {
|
1618 | let cmd;
|
1619 | const ret = [];
|
1620 | let args = [];
|
1621 | let curArg = '';
|
1622 | let foundDecimal = false;
|
1623 | let params = 0;
|
1624 | for (let c of path) {
|
1625 | if (parameters[c] != null) {
|
1626 | params = parameters[c];
|
1627 | if (cmd) {
|
1628 |
|
1629 | if (curArg.length > 0) {
|
1630 | args[args.length] = +curArg;
|
1631 | }
|
1632 | ret[ret.length] = {
|
1633 | cmd,
|
1634 | args
|
1635 | };
|
1636 | args = [];
|
1637 | curArg = '';
|
1638 | foundDecimal = false;
|
1639 | }
|
1640 | cmd = c;
|
1641 | } else if ([' ', ','].includes(c) || c === '-' && curArg.length > 0 && curArg[curArg.length - 1] !== 'e' || c === '.' && foundDecimal) {
|
1642 | if (curArg.length === 0) {
|
1643 | continue;
|
1644 | }
|
1645 | if (args.length === params) {
|
1646 |
|
1647 | ret[ret.length] = {
|
1648 | cmd,
|
1649 | args
|
1650 | };
|
1651 | args = [+curArg];
|
1652 |
|
1653 |
|
1654 | if (cmd === 'M') {
|
1655 | cmd = 'L';
|
1656 | }
|
1657 | if (cmd === 'm') {
|
1658 | cmd = 'l';
|
1659 | }
|
1660 | } else {
|
1661 | args[args.length] = +curArg;
|
1662 | }
|
1663 | foundDecimal = c === '.';
|
1664 |
|
1665 |
|
1666 | curArg = ['-', '.'].includes(c) ? c : '';
|
1667 | } else {
|
1668 | curArg += c;
|
1669 | if (c === '.') {
|
1670 | foundDecimal = true;
|
1671 | }
|
1672 | }
|
1673 | }
|
1674 |
|
1675 |
|
1676 | if (curArg.length > 0) {
|
1677 | if (args.length === params) {
|
1678 |
|
1679 | ret[ret.length] = {
|
1680 | cmd,
|
1681 | args
|
1682 | };
|
1683 | args = [+curArg];
|
1684 |
|
1685 |
|
1686 | if (cmd === 'M') {
|
1687 | cmd = 'L';
|
1688 | }
|
1689 | if (cmd === 'm') {
|
1690 | cmd = 'l';
|
1691 | }
|
1692 | } else {
|
1693 | args[args.length] = +curArg;
|
1694 | }
|
1695 | }
|
1696 | ret[ret.length] = {
|
1697 | cmd,
|
1698 | args
|
1699 | };
|
1700 | return ret;
|
1701 | };
|
1702 | const apply = function (commands, doc) {
|
1703 |
|
1704 | cx = cy = px = py = sx = sy = 0;
|
1705 |
|
1706 |
|
1707 | for (let i = 0; i < commands.length; i++) {
|
1708 | const c = commands[i];
|
1709 | if (typeof runners[c.cmd] === 'function') {
|
1710 | runners[c.cmd](doc, c.args);
|
1711 | }
|
1712 | }
|
1713 | };
|
1714 | const runners = {
|
1715 | M(doc, a) {
|
1716 | cx = a[0];
|
1717 | cy = a[1];
|
1718 | px = py = null;
|
1719 | sx = cx;
|
1720 | sy = cy;
|
1721 | return doc.moveTo(cx, cy);
|
1722 | },
|
1723 | m(doc, a) {
|
1724 | cx += a[0];
|
1725 | cy += a[1];
|
1726 | px = py = null;
|
1727 | sx = cx;
|
1728 | sy = cy;
|
1729 | return doc.moveTo(cx, cy);
|
1730 | },
|
1731 | C(doc, a) {
|
1732 | cx = a[4];
|
1733 | cy = a[5];
|
1734 | px = a[2];
|
1735 | py = a[3];
|
1736 | return doc.bezierCurveTo(...a);
|
1737 | },
|
1738 | c(doc, a) {
|
1739 | doc.bezierCurveTo(a[0] + cx, a[1] + cy, a[2] + cx, a[3] + cy, a[4] + cx, a[5] + cy);
|
1740 | px = cx + a[2];
|
1741 | py = cy + a[3];
|
1742 | cx += a[4];
|
1743 | return cy += a[5];
|
1744 | },
|
1745 | S(doc, a) {
|
1746 | if (px === null) {
|
1747 | px = cx;
|
1748 | py = cy;
|
1749 | }
|
1750 | doc.bezierCurveTo(cx - (px - cx), cy - (py - cy), a[0], a[1], a[2], a[3]);
|
1751 | px = a[0];
|
1752 | py = a[1];
|
1753 | cx = a[2];
|
1754 | return cy = a[3];
|
1755 | },
|
1756 | s(doc, a) {
|
1757 | if (px === null) {
|
1758 | px = cx;
|
1759 | py = cy;
|
1760 | }
|
1761 | doc.bezierCurveTo(cx - (px - cx), cy - (py - cy), cx + a[0], cy + a[1], cx + a[2], cy + a[3]);
|
1762 | px = cx + a[0];
|
1763 | py = cy + a[1];
|
1764 | cx += a[2];
|
1765 | return cy += a[3];
|
1766 | },
|
1767 | Q(doc, a) {
|
1768 | px = a[0];
|
1769 | py = a[1];
|
1770 | cx = a[2];
|
1771 | cy = a[3];
|
1772 | return doc.quadraticCurveTo(a[0], a[1], cx, cy);
|
1773 | },
|
1774 | q(doc, a) {
|
1775 | doc.quadraticCurveTo(a[0] + cx, a[1] + cy, a[2] + cx, a[3] + cy);
|
1776 | px = cx + a[0];
|
1777 | py = cy + a[1];
|
1778 | cx += a[2];
|
1779 | return cy += a[3];
|
1780 | },
|
1781 | T(doc, a) {
|
1782 | if (px === null) {
|
1783 | px = cx;
|
1784 | py = cy;
|
1785 | } else {
|
1786 | px = cx - (px - cx);
|
1787 | py = cy - (py - cy);
|
1788 | }
|
1789 | doc.quadraticCurveTo(px, py, a[0], a[1]);
|
1790 | px = cx - (px - cx);
|
1791 | py = cy - (py - cy);
|
1792 | cx = a[0];
|
1793 | return cy = a[1];
|
1794 | },
|
1795 | t(doc, a) {
|
1796 | if (px === null) {
|
1797 | px = cx;
|
1798 | py = cy;
|
1799 | } else {
|
1800 | px = cx - (px - cx);
|
1801 | py = cy - (py - cy);
|
1802 | }
|
1803 | doc.quadraticCurveTo(px, py, cx + a[0], cy + a[1]);
|
1804 | cx += a[0];
|
1805 | return cy += a[1];
|
1806 | },
|
1807 | A(doc, a) {
|
1808 | solveArc(doc, cx, cy, a);
|
1809 | cx = a[5];
|
1810 | return cy = a[6];
|
1811 | },
|
1812 | a(doc, a) {
|
1813 | a[5] += cx;
|
1814 | a[6] += cy;
|
1815 | solveArc(doc, cx, cy, a);
|
1816 | cx = a[5];
|
1817 | return cy = a[6];
|
1818 | },
|
1819 | L(doc, a) {
|
1820 | cx = a[0];
|
1821 | cy = a[1];
|
1822 | px = py = null;
|
1823 | return doc.lineTo(cx, cy);
|
1824 | },
|
1825 | l(doc, a) {
|
1826 | cx += a[0];
|
1827 | cy += a[1];
|
1828 | px = py = null;
|
1829 | return doc.lineTo(cx, cy);
|
1830 | },
|
1831 | H(doc, a) {
|
1832 | cx = a[0];
|
1833 | px = py = null;
|
1834 | return doc.lineTo(cx, cy);
|
1835 | },
|
1836 | h(doc, a) {
|
1837 | cx += a[0];
|
1838 | px = py = null;
|
1839 | return doc.lineTo(cx, cy);
|
1840 | },
|
1841 | V(doc, a) {
|
1842 | cy = a[0];
|
1843 | px = py = null;
|
1844 | return doc.lineTo(cx, cy);
|
1845 | },
|
1846 | v(doc, a) {
|
1847 | cy += a[0];
|
1848 | px = py = null;
|
1849 | return doc.lineTo(cx, cy);
|
1850 | },
|
1851 | Z(doc) {
|
1852 | doc.closePath();
|
1853 | cx = sx;
|
1854 | return cy = sy;
|
1855 | },
|
1856 | z(doc) {
|
1857 | doc.closePath();
|
1858 | cx = sx;
|
1859 | return cy = sy;
|
1860 | }
|
1861 | };
|
1862 | const solveArc = function (doc, x, y, coords) {
|
1863 | const [rx, ry, rot, large, sweep, ex, ey] = coords;
|
1864 | const segs = arcToSegments(ex, ey, rx, ry, large, sweep, rot, x, y);
|
1865 | for (let seg of segs) {
|
1866 | const bez = segmentToBezier(...seg);
|
1867 | doc.bezierCurveTo(...bez);
|
1868 | }
|
1869 | };
|
1870 |
|
1871 |
|
1872 | const arcToSegments = function (x, y, rx, ry, large, sweep, rotateX, ox, oy) {
|
1873 | const th = rotateX * (Math.PI / 180);
|
1874 | const sin_th = Math.sin(th);
|
1875 | const cos_th = Math.cos(th);
|
1876 | rx = Math.abs(rx);
|
1877 | ry = Math.abs(ry);
|
1878 | px = cos_th * (ox - x) * 0.5 + sin_th * (oy - y) * 0.5;
|
1879 | py = cos_th * (oy - y) * 0.5 - sin_th * (ox - x) * 0.5;
|
1880 | let pl = px * px / (rx * rx) + py * py / (ry * ry);
|
1881 | if (pl > 1) {
|
1882 | pl = Math.sqrt(pl);
|
1883 | rx *= pl;
|
1884 | ry *= pl;
|
1885 | }
|
1886 | const a00 = cos_th / rx;
|
1887 | const a01 = sin_th / rx;
|
1888 | const a10 = -sin_th / ry;
|
1889 | const a11 = cos_th / ry;
|
1890 | const x0 = a00 * ox + a01 * oy;
|
1891 | const y0 = a10 * ox + a11 * oy;
|
1892 | const x1 = a00 * x + a01 * y;
|
1893 | const y1 = a10 * x + a11 * y;
|
1894 | const d = (x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0);
|
1895 | let sfactor_sq = 1 / d - 0.25;
|
1896 | if (sfactor_sq < 0) {
|
1897 | sfactor_sq = 0;
|
1898 | }
|
1899 | let sfactor = Math.sqrt(sfactor_sq);
|
1900 | if (sweep === large) {
|
1901 | sfactor = -sfactor;
|
1902 | }
|
1903 | const xc = 0.5 * (x0 + x1) - sfactor * (y1 - y0);
|
1904 | const yc = 0.5 * (y0 + y1) + sfactor * (x1 - x0);
|
1905 | const th0 = Math.atan2(y0 - yc, x0 - xc);
|
1906 | const th1 = Math.atan2(y1 - yc, x1 - xc);
|
1907 | let th_arc = th1 - th0;
|
1908 | if (th_arc < 0 && sweep === 1) {
|
1909 | th_arc += 2 * Math.PI;
|
1910 | } else if (th_arc > 0 && sweep === 0) {
|
1911 | th_arc -= 2 * Math.PI;
|
1912 | }
|
1913 | const segments = Math.ceil(Math.abs(th_arc / (Math.PI * 0.5 + 0.001)));
|
1914 | const result = [];
|
1915 | for (let i = 0; i < segments; i++) {
|
1916 | const th2 = th0 + i * th_arc / segments;
|
1917 | const th3 = th0 + (i + 1) * th_arc / segments;
|
1918 | result[i] = [xc, yc, th2, th3, rx, ry, sin_th, cos_th];
|
1919 | }
|
1920 | return result;
|
1921 | };
|
1922 | const segmentToBezier = function (cx, cy, th0, th1, rx, ry, sin_th, cos_th) {
|
1923 | const a00 = cos_th * rx;
|
1924 | const a01 = -sin_th * ry;
|
1925 | const a10 = sin_th * rx;
|
1926 | const a11 = cos_th * ry;
|
1927 | const th_half = 0.5 * (th1 - th0);
|
1928 | const t = 8 / 3 * Math.sin(th_half * 0.5) * Math.sin(th_half * 0.5) / Math.sin(th_half);
|
1929 | const x1 = cx + Math.cos(th0) - t * Math.sin(th0);
|
1930 | const y1 = cy + Math.sin(th0) + t * Math.cos(th0);
|
1931 | const x3 = cx + Math.cos(th1);
|
1932 | const y3 = cy + Math.sin(th1);
|
1933 | const x2 = x3 + t * Math.sin(th1);
|
1934 | const y2 = y3 - t * Math.cos(th1);
|
1935 | return [a00 * x1 + a01 * y1, a10 * x1 + a11 * y1, a00 * x2 + a01 * y2, a10 * x2 + a11 * y2, a00 * x3 + a01 * y3, a10 * x3 + a11 * y3];
|
1936 | };
|
1937 | class SVGPath {
|
1938 | static apply(doc, path) {
|
1939 | const commands = parse(path);
|
1940 | apply(commands, doc);
|
1941 | }
|
1942 | }
|
1943 |
|
1944 | const {
|
1945 | number: number$1
|
1946 | } = PDFObject;
|
1947 |
|
1948 |
|
1949 |
|
1950 | const KAPPA = 4.0 * ((Math.sqrt(2) - 1.0) / 3.0);
|
1951 | var VectorMixin = {
|
1952 | initVector() {
|
1953 | this._ctm = [1, 0, 0, 1, 0, 0];
|
1954 | return this._ctmStack = [];
|
1955 | },
|
1956 | save() {
|
1957 | this._ctmStack.push(this._ctm.slice());
|
1958 |
|
1959 | return this.addContent('q');
|
1960 | },
|
1961 | restore() {
|
1962 | this._ctm = this._ctmStack.pop() || [1, 0, 0, 1, 0, 0];
|
1963 | return this.addContent('Q');
|
1964 | },
|
1965 | closePath() {
|
1966 | return this.addContent('h');
|
1967 | },
|
1968 | lineWidth(w) {
|
1969 | return this.addContent(`${number$1(w)} w`);
|
1970 | },
|
1971 | _CAP_STYLES: {
|
1972 | BUTT: 0,
|
1973 | ROUND: 1,
|
1974 | SQUARE: 2
|
1975 | },
|
1976 | lineCap(c) {
|
1977 | if (typeof c === 'string') {
|
1978 | c = this._CAP_STYLES[c.toUpperCase()];
|
1979 | }
|
1980 | return this.addContent(`${c} J`);
|
1981 | },
|
1982 | _JOIN_STYLES: {
|
1983 | MITER: 0,
|
1984 | ROUND: 1,
|
1985 | BEVEL: 2
|
1986 | },
|
1987 | lineJoin(j) {
|
1988 | if (typeof j === 'string') {
|
1989 | j = this._JOIN_STYLES[j.toUpperCase()];
|
1990 | }
|
1991 | return this.addContent(`${j} j`);
|
1992 | },
|
1993 | miterLimit(m) {
|
1994 | return this.addContent(`${number$1(m)} M`);
|
1995 | },
|
1996 | dash(length, options = {}) {
|
1997 | const originalLength = length;
|
1998 | if (!Array.isArray(length)) {
|
1999 | length = [length, options.space || length];
|
2000 | }
|
2001 | const valid = length.every(x => Number.isFinite(x) && x > 0);
|
2002 | if (!valid) {
|
2003 | throw new Error(`dash(${JSON.stringify(originalLength)}, ${JSON.stringify(options)}) invalid, lengths must be numeric and greater than zero`);
|
2004 | }
|
2005 | length = length.map(number$1).join(' ');
|
2006 | return this.addContent(`[${length}] ${number$1(options.phase || 0)} d`);
|
2007 | },
|
2008 | undash() {
|
2009 | return this.addContent('[] 0 d');
|
2010 | },
|
2011 | moveTo(x, y) {
|
2012 | return this.addContent(`${number$1(x)} ${number$1(y)} m`);
|
2013 | },
|
2014 | lineTo(x, y) {
|
2015 | return this.addContent(`${number$1(x)} ${number$1(y)} l`);
|
2016 | },
|
2017 | bezierCurveTo(cp1x, cp1y, cp2x, cp2y, x, y) {
|
2018 | return this.addContent(`${number$1(cp1x)} ${number$1(cp1y)} ${number$1(cp2x)} ${number$1(cp2y)} ${number$1(x)} ${number$1(y)} c`);
|
2019 | },
|
2020 | quadraticCurveTo(cpx, cpy, x, y) {
|
2021 | return this.addContent(`${number$1(cpx)} ${number$1(cpy)} ${number$1(x)} ${number$1(y)} v`);
|
2022 | },
|
2023 | rect(x, y, w, h) {
|
2024 | return this.addContent(`${number$1(x)} ${number$1(y)} ${number$1(w)} ${number$1(h)} re`);
|
2025 | },
|
2026 | roundedRect(x, y, w, h, r) {
|
2027 | if (r == null) {
|
2028 | r = 0;
|
2029 | }
|
2030 | r = Math.min(r, 0.5 * w, 0.5 * h);
|
2031 |
|
2032 |
|
2033 | const c = r * (1.0 - KAPPA);
|
2034 | this.moveTo(x + r, y);
|
2035 | this.lineTo(x + w - r, y);
|
2036 | this.bezierCurveTo(x + w - c, y, x + w, y + c, x + w, y + r);
|
2037 | this.lineTo(x + w, y + h - r);
|
2038 | this.bezierCurveTo(x + w, y + h - c, x + w - c, y + h, x + w - r, y + h);
|
2039 | this.lineTo(x + r, y + h);
|
2040 | this.bezierCurveTo(x + c, y + h, x, y + h - c, x, y + h - r);
|
2041 | this.lineTo(x, y + r);
|
2042 | this.bezierCurveTo(x, y + c, x + c, y, x + r, y);
|
2043 | return this.closePath();
|
2044 | },
|
2045 | ellipse(x, y, r1, r2) {
|
2046 |
|
2047 | if (r2 == null) {
|
2048 | r2 = r1;
|
2049 | }
|
2050 | x -= r1;
|
2051 | y -= r2;
|
2052 | const ox = r1 * KAPPA;
|
2053 | const oy = r2 * KAPPA;
|
2054 | const xe = x + r1 * 2;
|
2055 | const ye = y + r2 * 2;
|
2056 | const xm = x + r1;
|
2057 | const ym = y + r2;
|
2058 | this.moveTo(x, ym);
|
2059 | this.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y);
|
2060 | this.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym);
|
2061 | this.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye);
|
2062 | this.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym);
|
2063 | return this.closePath();
|
2064 | },
|
2065 | circle(x, y, radius) {
|
2066 | return this.ellipse(x, y, radius);
|
2067 | },
|
2068 | arc(x, y, radius, startAngle, endAngle, anticlockwise) {
|
2069 | if (anticlockwise == null) {
|
2070 | anticlockwise = false;
|
2071 | }
|
2072 | const TWO_PI = 2.0 * Math.PI;
|
2073 | const HALF_PI = 0.5 * Math.PI;
|
2074 | let deltaAng = endAngle - startAngle;
|
2075 | if (Math.abs(deltaAng) > TWO_PI) {
|
2076 |
|
2077 | deltaAng = TWO_PI;
|
2078 | } else if (deltaAng !== 0 && anticlockwise !== deltaAng < 0) {
|
2079 |
|
2080 | const dir = anticlockwise ? -1 : 1;
|
2081 | deltaAng = dir * TWO_PI + deltaAng;
|
2082 | }
|
2083 | const numSegs = Math.ceil(Math.abs(deltaAng) / HALF_PI);
|
2084 | const segAng = deltaAng / numSegs;
|
2085 | const handleLen = segAng / HALF_PI * KAPPA * radius;
|
2086 | let curAng = startAngle;
|
2087 |
|
2088 |
|
2089 | let deltaCx = -Math.sin(curAng) * handleLen;
|
2090 | let deltaCy = Math.cos(curAng) * handleLen;
|
2091 |
|
2092 |
|
2093 | let ax = x + Math.cos(curAng) * radius;
|
2094 | let ay = y + Math.sin(curAng) * radius;
|
2095 |
|
2096 |
|
2097 | this.moveTo(ax, ay);
|
2098 | for (let segIdx = 0; segIdx < numSegs; segIdx++) {
|
2099 |
|
2100 | const cp1x = ax + deltaCx;
|
2101 | const cp1y = ay + deltaCy;
|
2102 |
|
2103 |
|
2104 | curAng += segAng;
|
2105 |
|
2106 |
|
2107 | ax = x + Math.cos(curAng) * radius;
|
2108 | ay = y + Math.sin(curAng) * radius;
|
2109 |
|
2110 |
|
2111 | deltaCx = -Math.sin(curAng) * handleLen;
|
2112 | deltaCy = Math.cos(curAng) * handleLen;
|
2113 |
|
2114 |
|
2115 | const cp2x = ax - deltaCx;
|
2116 | const cp2y = ay - deltaCy;
|
2117 |
|
2118 |
|
2119 | this.bezierCurveTo(cp1x, cp1y, cp2x, cp2y, ax, ay);
|
2120 | }
|
2121 | return this;
|
2122 | },
|
2123 | polygon(...points) {
|
2124 | this.moveTo(...(points.shift() || []));
|
2125 | for (let point of points) {
|
2126 | this.lineTo(...(point || []));
|
2127 | }
|
2128 | return this.closePath();
|
2129 | },
|
2130 | path(path) {
|
2131 | SVGPath.apply(this, path);
|
2132 | return this;
|
2133 | },
|
2134 | _windingRule(rule) {
|
2135 | if (/even-?odd/.test(rule)) {
|
2136 | return '*';
|
2137 | }
|
2138 | return '';
|
2139 | },
|
2140 | fill(color, rule) {
|
2141 | if (/(even-?odd)|(non-?zero)/.test(color)) {
|
2142 | rule = color;
|
2143 | color = null;
|
2144 | }
|
2145 | if (color) {
|
2146 | this.fillColor(color);
|
2147 | }
|
2148 | return this.addContent(`f${this._windingRule(rule)}`);
|
2149 | },
|
2150 | stroke(color) {
|
2151 | if (color) {
|
2152 | this.strokeColor(color);
|
2153 | }
|
2154 | return this.addContent('S');
|
2155 | },
|
2156 | fillAndStroke(fillColor, strokeColor, rule) {
|
2157 | if (strokeColor == null) {
|
2158 | strokeColor = fillColor;
|
2159 | }
|
2160 | const isFillRule = /(even-?odd)|(non-?zero)/;
|
2161 | if (isFillRule.test(fillColor)) {
|
2162 | rule = fillColor;
|
2163 | fillColor = null;
|
2164 | }
|
2165 | if (isFillRule.test(strokeColor)) {
|
2166 | rule = strokeColor;
|
2167 | strokeColor = fillColor;
|
2168 | }
|
2169 | if (fillColor) {
|
2170 | this.fillColor(fillColor);
|
2171 | this.strokeColor(strokeColor);
|
2172 | }
|
2173 | return this.addContent(`B${this._windingRule(rule)}`);
|
2174 | },
|
2175 | clip(rule) {
|
2176 | return this.addContent(`W${this._windingRule(rule)} n`);
|
2177 | },
|
2178 | transform(m11, m12, m21, m22, dx, dy) {
|
2179 |
|
2180 | if (m11 === 1 && m12 === 0 && m21 === 0 && m22 === 1 && dx === 0 && dy === 0) {
|
2181 |
|
2182 | return this;
|
2183 | }
|
2184 | const m = this._ctm;
|
2185 | const [m0, m1, m2, m3, m4, m5] = m;
|
2186 | m[0] = m0 * m11 + m2 * m12;
|
2187 | m[1] = m1 * m11 + m3 * m12;
|
2188 | m[2] = m0 * m21 + m2 * m22;
|
2189 | m[3] = m1 * m21 + m3 * m22;
|
2190 | m[4] = m0 * dx + m2 * dy + m4;
|
2191 | m[5] = m1 * dx + m3 * dy + m5;
|
2192 | const values = [m11, m12, m21, m22, dx, dy].map(v => number$1(v)).join(' ');
|
2193 | return this.addContent(`${values} cm`);
|
2194 | },
|
2195 | translate(x, y) {
|
2196 | return this.transform(1, 0, 0, 1, x, y);
|
2197 | },
|
2198 | rotate(angle, options = {}) {
|
2199 | let y;
|
2200 | const rad = angle * Math.PI / 180;
|
2201 | const cos = Math.cos(rad);
|
2202 | const sin = Math.sin(rad);
|
2203 | let x = y = 0;
|
2204 | if (options.origin != null) {
|
2205 | [x, y] = options.origin;
|
2206 | const x1 = x * cos - y * sin;
|
2207 | const y1 = x * sin + y * cos;
|
2208 | x -= x1;
|
2209 | y -= y1;
|
2210 | }
|
2211 | return this.transform(cos, sin, -sin, cos, x, y);
|
2212 | },
|
2213 | scale(xFactor, yFactor, options = {}) {
|
2214 | let y;
|
2215 | if (yFactor == null) {
|
2216 | yFactor = xFactor;
|
2217 | }
|
2218 | if (typeof yFactor === 'object') {
|
2219 | options = yFactor;
|
2220 | yFactor = xFactor;
|
2221 | }
|
2222 | let x = y = 0;
|
2223 | if (options.origin != null) {
|
2224 | [x, y] = options.origin;
|
2225 | x -= xFactor * x;
|
2226 | y -= yFactor * y;
|
2227 | }
|
2228 | return this.transform(xFactor, 0, 0, yFactor, x, y);
|
2229 | }
|
2230 | };
|
2231 |
|
2232 | const WIN_ANSI_MAP = {
|
2233 | 402: 131,
|
2234 | 8211: 150,
|
2235 | 8212: 151,
|
2236 | 8216: 145,
|
2237 | 8217: 146,
|
2238 | 8218: 130,
|
2239 | 8220: 147,
|
2240 | 8221: 148,
|
2241 | 8222: 132,
|
2242 | 8224: 134,
|
2243 | 8225: 135,
|
2244 | 8226: 149,
|
2245 | 8230: 133,
|
2246 | 8364: 128,
|
2247 | 8240: 137,
|
2248 | 8249: 139,
|
2249 | 8250: 155,
|
2250 | 710: 136,
|
2251 | 8482: 153,
|
2252 | 338: 140,
|
2253 | 339: 156,
|
2254 | 732: 152,
|
2255 | 352: 138,
|
2256 | 353: 154,
|
2257 | 376: 159,
|
2258 | 381: 142,
|
2259 | 382: 158
|
2260 | };
|
2261 | const characters = `\
|
2262 | .notdef .notdef .notdef .notdef
|
2263 | .notdef .notdef .notdef .notdef
|
2264 | .notdef .notdef .notdef .notdef
|
2265 | .notdef .notdef .notdef .notdef
|
2266 | .notdef .notdef .notdef .notdef
|
2267 | .notdef .notdef .notdef .notdef
|
2268 | .notdef .notdef .notdef .notdef
|
2269 | .notdef .notdef .notdef .notdef
|
2270 |
|
2271 | space exclam quotedbl numbersign
|
2272 | dollar percent ampersand quotesingle
|
2273 | parenleft parenright asterisk plus
|
2274 | comma hyphen period slash
|
2275 | zero one two three
|
2276 | four five six seven
|
2277 | eight nine colon semicolon
|
2278 | less equal greater question
|
2279 |
|
2280 | at A B C
|
2281 | D E F G
|
2282 | H I J K
|
2283 | L M N O
|
2284 | P Q R S
|
2285 | T U V W
|
2286 | X Y Z bracketleft
|
2287 | backslash bracketright asciicircum underscore
|
2288 |
|
2289 | grave a b c
|
2290 | d e f g
|
2291 | h i j k
|
2292 | l m n o
|
2293 | p q r s
|
2294 | t u v w
|
2295 | x y z braceleft
|
2296 | bar braceright asciitilde .notdef
|
2297 |
|
2298 | Euro .notdef quotesinglbase florin
|
2299 | quotedblbase ellipsis dagger daggerdbl
|
2300 | circumflex perthousand Scaron guilsinglleft
|
2301 | OE .notdef Zcaron .notdef
|
2302 | .notdef quoteleft quoteright quotedblleft
|
2303 | quotedblright bullet endash emdash
|
2304 | tilde trademark scaron guilsinglright
|
2305 | oe .notdef zcaron ydieresis
|
2306 |
|
2307 | space exclamdown cent sterling
|
2308 | currency yen brokenbar section
|
2309 | dieresis copyright ordfeminine guillemotleft
|
2310 | logicalnot hyphen registered macron
|
2311 | degree plusminus twosuperior threesuperior
|
2312 | acute mu paragraph periodcentered
|
2313 | cedilla onesuperior ordmasculine guillemotright
|
2314 | onequarter onehalf threequarters questiondown
|
2315 |
|
2316 | Agrave Aacute Acircumflex Atilde
|
2317 | Adieresis Aring AE Ccedilla
|
2318 | Egrave Eacute Ecircumflex Edieresis
|
2319 | Igrave Iacute Icircumflex Idieresis
|
2320 | Eth Ntilde Ograve Oacute
|
2321 | Ocircumflex Otilde Odieresis multiply
|
2322 | Oslash Ugrave Uacute Ucircumflex
|
2323 | Udieresis Yacute Thorn germandbls
|
2324 |
|
2325 | agrave aacute acircumflex atilde
|
2326 | adieresis aring ae ccedilla
|
2327 | egrave eacute ecircumflex edieresis
|
2328 | igrave iacute icircumflex idieresis
|
2329 | eth ntilde ograve oacute
|
2330 | ocircumflex otilde odieresis divide
|
2331 | oslash ugrave uacute ucircumflex
|
2332 | udieresis yacute thorn ydieresis\
|
2333 | `.split(/\s+/);
|
2334 | class AFMFont {
|
2335 | static open(filename) {
|
2336 | return new AFMFont(fs.readFileSync(filename, 'utf8'));
|
2337 | }
|
2338 | constructor(contents) {
|
2339 | this.contents = contents;
|
2340 | this.attributes = {};
|
2341 | this.glyphWidths = {};
|
2342 | this.boundingBoxes = {};
|
2343 | this.kernPairs = {};
|
2344 | this.parse();
|
2345 |
|
2346 | this.charWidths = new Array(256);
|
2347 | for (let char = 0; char <= 255; char++) {
|
2348 | this.charWidths[char] = this.glyphWidths[characters[char]];
|
2349 | }
|
2350 | this.bbox = this.attributes['FontBBox'].split(/\s+/).map(e => +e);
|
2351 | this.ascender = +(this.attributes['Ascender'] || 0);
|
2352 | this.descender = +(this.attributes['Descender'] || 0);
|
2353 | this.xHeight = +(this.attributes['XHeight'] || 0);
|
2354 | this.capHeight = +(this.attributes['CapHeight'] || 0);
|
2355 | this.lineGap = this.bbox[3] - this.bbox[1] - (this.ascender - this.descender);
|
2356 | }
|
2357 | parse() {
|
2358 | let section = '';
|
2359 | for (let line of this.contents.split('\n')) {
|
2360 | var match;
|
2361 | var a;
|
2362 | if (match = line.match(/^Start(\w+)/)) {
|
2363 | section = match[1];
|
2364 | continue;
|
2365 | } else if (match = line.match(/^End(\w+)/)) {
|
2366 | section = '';
|
2367 | continue;
|
2368 | }
|
2369 | switch (section) {
|
2370 | case 'FontMetrics':
|
2371 | match = line.match(/(^\w+)\s+(.*)/);
|
2372 | var key = match[1];
|
2373 | var value = match[2];
|
2374 | if (a = this.attributes[key]) {
|
2375 | if (!Array.isArray(a)) {
|
2376 | a = this.attributes[key] = [a];
|
2377 | }
|
2378 | a.push(value);
|
2379 | } else {
|
2380 | this.attributes[key] = value;
|
2381 | }
|
2382 | break;
|
2383 | case 'CharMetrics':
|
2384 | if (!/^CH?\s/.test(line)) {
|
2385 | continue;
|
2386 | }
|
2387 | var name = line.match(/\bN\s+(\.?\w+)\s*;/)[1];
|
2388 | this.glyphWidths[name] = +line.match(/\bWX\s+(\d+)\s*;/)[1];
|
2389 | break;
|
2390 | case 'KernPairs':
|
2391 | match = line.match(/^KPX\s+(\.?\w+)\s+(\.?\w+)\s+(-?\d+)/);
|
2392 | if (match) {
|
2393 | this.kernPairs[match[1] + '\0' + match[2]] = parseInt(match[3]);
|
2394 | }
|
2395 | break;
|
2396 | }
|
2397 | }
|
2398 | }
|
2399 | encodeText(text) {
|
2400 | const res = [];
|
2401 | for (let i = 0, len = text.length; i < len; i++) {
|
2402 | let char = text.charCodeAt(i);
|
2403 | char = WIN_ANSI_MAP[char] || char;
|
2404 | res.push(char.toString(16));
|
2405 | }
|
2406 | return res;
|
2407 | }
|
2408 | glyphsForString(string) {
|
2409 | const glyphs = [];
|
2410 | for (let i = 0, len = string.length; i < len; i++) {
|
2411 | const charCode = string.charCodeAt(i);
|
2412 | glyphs.push(this.characterToGlyph(charCode));
|
2413 | }
|
2414 | return glyphs;
|
2415 | }
|
2416 | characterToGlyph(character) {
|
2417 | return characters[WIN_ANSI_MAP[character] || character] || '.notdef';
|
2418 | }
|
2419 | widthOfGlyph(glyph) {
|
2420 | return this.glyphWidths[glyph] || 0;
|
2421 | }
|
2422 | getKernPair(left, right) {
|
2423 | return this.kernPairs[left + '\0' + right] || 0;
|
2424 | }
|
2425 | advancesForGlyphs(glyphs) {
|
2426 | const advances = [];
|
2427 | for (let index = 0; index < glyphs.length; index++) {
|
2428 | const left = glyphs[index];
|
2429 | const right = glyphs[index + 1];
|
2430 | advances.push(this.widthOfGlyph(left) + this.getKernPair(left, right));
|
2431 | }
|
2432 | return advances;
|
2433 | }
|
2434 | }
|
2435 |
|
2436 | class PDFFont {
|
2437 | constructor() {}
|
2438 | encode() {
|
2439 | throw new Error('Must be implemented by subclasses');
|
2440 | }
|
2441 | widthOfString() {
|
2442 | throw new Error('Must be implemented by subclasses');
|
2443 | }
|
2444 | ref() {
|
2445 | return this.dictionary != null ? this.dictionary : this.dictionary = this.document.ref();
|
2446 | }
|
2447 | finalize() {
|
2448 | if (this.embedded || this.dictionary == null) {
|
2449 | return;
|
2450 | }
|
2451 | this.embed();
|
2452 | return this.embedded = true;
|
2453 | }
|
2454 | embed() {
|
2455 | throw new Error('Must be implemented by subclasses');
|
2456 | }
|
2457 | lineHeight(size, includeGap) {
|
2458 | if (includeGap == null) {
|
2459 | includeGap = false;
|
2460 | }
|
2461 | const gap = includeGap ? this.lineGap : 0;
|
2462 | return (this.ascender + gap - this.descender) / 1000 * size;
|
2463 | }
|
2464 | }
|
2465 |
|
2466 |
|
2467 | const STANDARD_FONTS = {
|
2468 | Courier() {
|
2469 | return fs.readFileSync(__dirname + '/data/Courier.afm', 'utf8');
|
2470 | },
|
2471 | 'Courier-Bold'() {
|
2472 | return fs.readFileSync(__dirname + '/data/Courier-Bold.afm', 'utf8');
|
2473 | },
|
2474 | 'Courier-Oblique'() {
|
2475 | return fs.readFileSync(__dirname + '/data/Courier-Oblique.afm', 'utf8');
|
2476 | },
|
2477 | 'Courier-BoldOblique'() {
|
2478 | return fs.readFileSync(__dirname + '/data/Courier-BoldOblique.afm', 'utf8');
|
2479 | },
|
2480 | Helvetica() {
|
2481 | return fs.readFileSync(__dirname + '/data/Helvetica.afm', 'utf8');
|
2482 | },
|
2483 | 'Helvetica-Bold'() {
|
2484 | return fs.readFileSync(__dirname + '/data/Helvetica-Bold.afm', 'utf8');
|
2485 | },
|
2486 | 'Helvetica-Oblique'() {
|
2487 | return fs.readFileSync(__dirname + '/data/Helvetica-Oblique.afm', 'utf8');
|
2488 | },
|
2489 | 'Helvetica-BoldOblique'() {
|
2490 | return fs.readFileSync(__dirname + '/data/Helvetica-BoldOblique.afm', 'utf8');
|
2491 | },
|
2492 | 'Times-Roman'() {
|
2493 | return fs.readFileSync(__dirname + '/data/Times-Roman.afm', 'utf8');
|
2494 | },
|
2495 | 'Times-Bold'() {
|
2496 | return fs.readFileSync(__dirname + '/data/Times-Bold.afm', 'utf8');
|
2497 | },
|
2498 | 'Times-Italic'() {
|
2499 | return fs.readFileSync(__dirname + '/data/Times-Italic.afm', 'utf8');
|
2500 | },
|
2501 | 'Times-BoldItalic'() {
|
2502 | return fs.readFileSync(__dirname + '/data/Times-BoldItalic.afm', 'utf8');
|
2503 | },
|
2504 | Symbol() {
|
2505 | return fs.readFileSync(__dirname + '/data/Symbol.afm', 'utf8');
|
2506 | },
|
2507 | ZapfDingbats() {
|
2508 | return fs.readFileSync(__dirname + '/data/ZapfDingbats.afm', 'utf8');
|
2509 | }
|
2510 | };
|
2511 | class StandardFont extends PDFFont {
|
2512 | constructor(document, name, id) {
|
2513 | super();
|
2514 | this.document = document;
|
2515 | this.name = name;
|
2516 | this.id = id;
|
2517 | this.font = new AFMFont(STANDARD_FONTS[this.name]());
|
2518 | ({
|
2519 | ascender: this.ascender,
|
2520 | descender: this.descender,
|
2521 | bbox: this.bbox,
|
2522 | lineGap: this.lineGap,
|
2523 | xHeight: this.xHeight,
|
2524 | capHeight: this.capHeight
|
2525 | } = this.font);
|
2526 | }
|
2527 | embed() {
|
2528 | this.dictionary.data = {
|
2529 | Type: 'Font',
|
2530 | BaseFont: this.name,
|
2531 | Subtype: 'Type1',
|
2532 | Encoding: 'WinAnsiEncoding'
|
2533 | };
|
2534 | return this.dictionary.end();
|
2535 | }
|
2536 | encode(text) {
|
2537 | const encoded = this.font.encodeText(text);
|
2538 | const glyphs = this.font.glyphsForString(`${text}`);
|
2539 | const advances = this.font.advancesForGlyphs(glyphs);
|
2540 | const positions = [];
|
2541 | for (let i = 0; i < glyphs.length; i++) {
|
2542 | const glyph = glyphs[i];
|
2543 | positions.push({
|
2544 | xAdvance: advances[i],
|
2545 | yAdvance: 0,
|
2546 | xOffset: 0,
|
2547 | yOffset: 0,
|
2548 | advanceWidth: this.font.widthOfGlyph(glyph)
|
2549 | });
|
2550 | }
|
2551 | return [encoded, positions];
|
2552 | }
|
2553 | widthOfString(string, size) {
|
2554 | const glyphs = this.font.glyphsForString(`${string}`);
|
2555 | const advances = this.font.advancesForGlyphs(glyphs);
|
2556 | let width = 0;
|
2557 | for (let advance of advances) {
|
2558 | width += advance;
|
2559 | }
|
2560 | const scale = size / 1000;
|
2561 | return width * scale;
|
2562 | }
|
2563 | static isStandardFont(name) {
|
2564 | return name in STANDARD_FONTS;
|
2565 | }
|
2566 | }
|
2567 |
|
2568 | const toHex = function (num) {
|
2569 | return `0000${num.toString(16)}`.slice(-4);
|
2570 | };
|
2571 | class EmbeddedFont extends PDFFont {
|
2572 | constructor(document, font, id) {
|
2573 | super();
|
2574 | this.document = document;
|
2575 | this.font = font;
|
2576 | this.id = id;
|
2577 | this.subset = this.font.createSubset();
|
2578 | this.unicode = [[0]];
|
2579 | this.widths = [this.font.getGlyph(0).advanceWidth];
|
2580 | this.name = this.font.postscriptName;
|
2581 | this.scale = 1000 / this.font.unitsPerEm;
|
2582 | this.ascender = this.font.ascent * this.scale;
|
2583 | this.descender = this.font.descent * this.scale;
|
2584 | this.xHeight = this.font.xHeight * this.scale;
|
2585 | this.capHeight = this.font.capHeight * this.scale;
|
2586 | this.lineGap = this.font.lineGap * this.scale;
|
2587 | this.bbox = this.font.bbox;
|
2588 | if (document.options.fontLayoutCache !== false) {
|
2589 | this.layoutCache = Object.create(null);
|
2590 | }
|
2591 | }
|
2592 | layoutRun(text, features) {
|
2593 | const run = this.font.layout(text, features);
|
2594 |
|
2595 |
|
2596 | for (let i = 0; i < run.positions.length; i++) {
|
2597 | const position = run.positions[i];
|
2598 | for (let key in position) {
|
2599 | position[key] *= this.scale;
|
2600 | }
|
2601 | position.advanceWidth = run.glyphs[i].advanceWidth * this.scale;
|
2602 | }
|
2603 | return run;
|
2604 | }
|
2605 | layoutCached(text) {
|
2606 | if (!this.layoutCache) {
|
2607 | return this.layoutRun(text);
|
2608 | }
|
2609 | let cached;
|
2610 | if (cached = this.layoutCache[text]) {
|
2611 | return cached;
|
2612 | }
|
2613 | const run = this.layoutRun(text);
|
2614 | this.layoutCache[text] = run;
|
2615 | return run;
|
2616 | }
|
2617 | layout(text, features, onlyWidth) {
|
2618 |
|
2619 | if (features) {
|
2620 | return this.layoutRun(text, features);
|
2621 | }
|
2622 | let glyphs = onlyWidth ? null : [];
|
2623 | let positions = onlyWidth ? null : [];
|
2624 | let advanceWidth = 0;
|
2625 |
|
2626 |
|
2627 |
|
2628 | let last = 0;
|
2629 | let index = 0;
|
2630 | while (index <= text.length) {
|
2631 | var needle;
|
2632 | if (index === text.length && last < index || (needle = text.charAt(index), [' ', '\t'].includes(needle))) {
|
2633 | const run = this.layoutCached(text.slice(last, ++index));
|
2634 | if (!onlyWidth) {
|
2635 | glyphs = glyphs.concat(run.glyphs);
|
2636 | positions = positions.concat(run.positions);
|
2637 | }
|
2638 | advanceWidth += run.advanceWidth;
|
2639 | last = index;
|
2640 | } else {
|
2641 | index++;
|
2642 | }
|
2643 | }
|
2644 | return {
|
2645 | glyphs,
|
2646 | positions,
|
2647 | advanceWidth
|
2648 | };
|
2649 | }
|
2650 | encode(text, features) {
|
2651 | const {
|
2652 | glyphs,
|
2653 | positions
|
2654 | } = this.layout(text, features);
|
2655 | const res = [];
|
2656 | for (let i = 0; i < glyphs.length; i++) {
|
2657 | const glyph = glyphs[i];
|
2658 | const gid = this.subset.includeGlyph(glyph.id);
|
2659 | res.push(`0000${gid.toString(16)}`.slice(-4));
|
2660 | if (this.widths[gid] == null) {
|
2661 | this.widths[gid] = glyph.advanceWidth * this.scale;
|
2662 | }
|
2663 | if (this.unicode[gid] == null) {
|
2664 | this.unicode[gid] = glyph.codePoints;
|
2665 | }
|
2666 | }
|
2667 | return [res, positions];
|
2668 | }
|
2669 | widthOfString(string, size, features) {
|
2670 | const width = this.layout(string, features, true).advanceWidth;
|
2671 | const scale = size / 1000;
|
2672 | return width * scale;
|
2673 | }
|
2674 | embed() {
|
2675 | const isCFF = this.subset.cff != null;
|
2676 | const fontFile = this.document.ref();
|
2677 | if (isCFF) {
|
2678 | fontFile.data.Subtype = 'CIDFontType0C';
|
2679 | }
|
2680 | this.subset.encodeStream().on('data', data => fontFile.write(data)).on('end', () => fontFile.end());
|
2681 | const familyClass = ((this.font['OS/2'] != null ? this.font['OS/2'].sFamilyClass : undefined) || 0) >> 8;
|
2682 | let flags = 0;
|
2683 | if (this.font.post.isFixedPitch) {
|
2684 | flags |= 1 << 0;
|
2685 | }
|
2686 | if (1 <= familyClass && familyClass <= 7) {
|
2687 | flags |= 1 << 1;
|
2688 | }
|
2689 | flags |= 1 << 2;
|
2690 | if (familyClass === 10) {
|
2691 | flags |= 1 << 3;
|
2692 | }
|
2693 | if (this.font.head.macStyle.italic) {
|
2694 | flags |= 1 << 6;
|
2695 | }
|
2696 |
|
2697 |
|
2698 | const tag = [1, 2, 3, 4, 5, 6].map(i => String.fromCharCode((this.id.charCodeAt(i) || 73) + 17)).join('');
|
2699 | const name = tag + '+' + this.font.postscriptName;
|
2700 | const {
|
2701 | bbox
|
2702 | } = this.font;
|
2703 | const descriptor = this.document.ref({
|
2704 | Type: 'FontDescriptor',
|
2705 | FontName: name,
|
2706 | Flags: flags,
|
2707 | FontBBox: [bbox.minX * this.scale, bbox.minY * this.scale, bbox.maxX * this.scale, bbox.maxY * this.scale],
|
2708 | ItalicAngle: this.font.italicAngle,
|
2709 | Ascent: this.ascender,
|
2710 | Descent: this.descender,
|
2711 | CapHeight: (this.font.capHeight || this.font.ascent) * this.scale,
|
2712 | XHeight: (this.font.xHeight || 0) * this.scale,
|
2713 | StemV: 0
|
2714 | });
|
2715 |
|
2716 | if (isCFF) {
|
2717 | descriptor.data.FontFile3 = fontFile;
|
2718 | } else {
|
2719 | descriptor.data.FontFile2 = fontFile;
|
2720 | }
|
2721 | if (this.document.subset) {
|
2722 | const CIDSet = Buffer.from('FFFFFFFFC0', 'hex');
|
2723 | const CIDSetRef = this.document.ref();
|
2724 | CIDSetRef.write(CIDSet);
|
2725 | CIDSetRef.end();
|
2726 | descriptor.data.CIDSet = CIDSetRef;
|
2727 | }
|
2728 | descriptor.end();
|
2729 | const descendantFontData = {
|
2730 | Type: 'Font',
|
2731 | Subtype: 'CIDFontType0',
|
2732 | BaseFont: name,
|
2733 | CIDSystemInfo: {
|
2734 | Registry: new String('Adobe'),
|
2735 | Ordering: new String('Identity'),
|
2736 | Supplement: 0
|
2737 | },
|
2738 | FontDescriptor: descriptor,
|
2739 | W: [0, this.widths]
|
2740 | };
|
2741 | if (!isCFF) {
|
2742 | descendantFontData.Subtype = 'CIDFontType2';
|
2743 | descendantFontData.CIDToGIDMap = 'Identity';
|
2744 | }
|
2745 | const descendantFont = this.document.ref(descendantFontData);
|
2746 | descendantFont.end();
|
2747 | this.dictionary.data = {
|
2748 | Type: 'Font',
|
2749 | Subtype: 'Type0',
|
2750 | BaseFont: name,
|
2751 | Encoding: 'Identity-H',
|
2752 | DescendantFonts: [descendantFont],
|
2753 | ToUnicode: this.toUnicodeCmap()
|
2754 | };
|
2755 | return this.dictionary.end();
|
2756 | }
|
2757 |
|
2758 |
|
2759 |
|
2760 |
|
2761 | toUnicodeCmap() {
|
2762 | const cmap = this.document.ref();
|
2763 | const entries = [];
|
2764 | for (let codePoints of this.unicode) {
|
2765 | const encoded = [];
|
2766 |
|
2767 |
|
2768 | for (let value of codePoints) {
|
2769 | if (value > 0xffff) {
|
2770 | value -= 0x10000;
|
2771 | encoded.push(toHex(value >>> 10 & 0x3ff | 0xd800));
|
2772 | value = 0xdc00 | value & 0x3ff;
|
2773 | }
|
2774 | encoded.push(toHex(value));
|
2775 | }
|
2776 | entries.push(`<${encoded.join(' ')}>`);
|
2777 | }
|
2778 | const chunkSize = 256;
|
2779 | const chunks = Math.ceil(entries.length / chunkSize);
|
2780 | const ranges = [];
|
2781 | for (let i = 0; i < chunks; i++) {
|
2782 | const start = i * chunkSize;
|
2783 | const end = Math.min((i + 1) * chunkSize, entries.length);
|
2784 | ranges.push(`<${toHex(start)}> <${toHex(end - 1)}> [${entries.slice(start, end).join(' ')}]`);
|
2785 | }
|
2786 | cmap.end(`\
|
2787 | /CIDInit /ProcSet findresource begin
|
2788 | 12 dict begin
|
2789 | begincmap
|
2790 | /CIDSystemInfo <<
|
2791 | /Registry (Adobe)
|
2792 | /Ordering (UCS)
|
2793 | /Supplement 0
|
2794 | >> def
|
2795 | /CMapName /Adobe-Identity-UCS def
|
2796 | /CMapType 2 def
|
2797 | 1 begincodespacerange
|
2798 | <0000><ffff>
|
2799 | endcodespacerange
|
2800 | 1 beginbfrange
|
2801 | ${ranges.join('\n')}
|
2802 | endbfrange
|
2803 | endcmap
|
2804 | CMapName currentdict /CMap defineresource pop
|
2805 | end
|
2806 | end\
|
2807 | `);
|
2808 | return cmap;
|
2809 | }
|
2810 | }
|
2811 |
|
2812 | class PDFFontFactory {
|
2813 | static open(document, src, family, id) {
|
2814 | let font;
|
2815 | if (typeof src === 'string') {
|
2816 | if (StandardFont.isStandardFont(src)) {
|
2817 | return new StandardFont(document, src, id);
|
2818 | }
|
2819 | src = fs.readFileSync(src);
|
2820 | }
|
2821 | if (Buffer.isBuffer(src)) {
|
2822 | font = fontkit.create(src, family);
|
2823 | } else if (src instanceof Uint8Array) {
|
2824 | font = fontkit.create(Buffer.from(src), family);
|
2825 | } else if (src instanceof ArrayBuffer) {
|
2826 | font = fontkit.create(Buffer.from(new Uint8Array(src)), family);
|
2827 | }
|
2828 | if (font == null) {
|
2829 | throw new Error('Not a supported font format or standard PDF font.');
|
2830 | }
|
2831 | return new EmbeddedFont(document, font, id);
|
2832 | }
|
2833 | }
|
2834 |
|
2835 | var FontsMixin = {
|
2836 | initFonts(defaultFont = 'Helvetica') {
|
2837 |
|
2838 | this._fontFamilies = {};
|
2839 | this._fontCount = 0;
|
2840 |
|
2841 |
|
2842 | this._fontSize = 12;
|
2843 | this._font = null;
|
2844 | this._registeredFonts = {};
|
2845 |
|
2846 |
|
2847 | if (defaultFont) {
|
2848 | this.font(defaultFont);
|
2849 | }
|
2850 | },
|
2851 | font(src, family, size) {
|
2852 | let cacheKey, font;
|
2853 | if (typeof family === 'number') {
|
2854 | size = family;
|
2855 | family = null;
|
2856 | }
|
2857 |
|
2858 |
|
2859 | if (typeof src === 'string' && this._registeredFonts[src]) {
|
2860 | cacheKey = src;
|
2861 | ({
|
2862 | src,
|
2863 | family
|
2864 | } = this._registeredFonts[src]);
|
2865 | } else {
|
2866 | cacheKey = family || src;
|
2867 | if (typeof cacheKey !== 'string') {
|
2868 | cacheKey = null;
|
2869 | }
|
2870 | }
|
2871 | if (size != null) {
|
2872 | this.fontSize(size);
|
2873 | }
|
2874 |
|
2875 |
|
2876 | if (font = this._fontFamilies[cacheKey]) {
|
2877 | this._font = font;
|
2878 | return this;
|
2879 | }
|
2880 |
|
2881 |
|
2882 | const id = `F${++this._fontCount}`;
|
2883 | this._font = PDFFontFactory.open(this, src, family, id);
|
2884 |
|
2885 |
|
2886 |
|
2887 | if (font = this._fontFamilies[this._font.name]) {
|
2888 | this._font = font;
|
2889 | return this;
|
2890 | }
|
2891 |
|
2892 |
|
2893 | if (cacheKey) {
|
2894 | this._fontFamilies[cacheKey] = this._font;
|
2895 | }
|
2896 | if (this._font.name) {
|
2897 | this._fontFamilies[this._font.name] = this._font;
|
2898 | }
|
2899 | return this;
|
2900 | },
|
2901 | fontSize(_fontSize) {
|
2902 | this._fontSize = _fontSize;
|
2903 | return this;
|
2904 | },
|
2905 | currentLineHeight(includeGap) {
|
2906 | if (includeGap == null) {
|
2907 | includeGap = false;
|
2908 | }
|
2909 | return this._font.lineHeight(this._fontSize, includeGap);
|
2910 | },
|
2911 | registerFont(name, src, family) {
|
2912 | this._registeredFonts[name] = {
|
2913 | src,
|
2914 | family
|
2915 | };
|
2916 | return this;
|
2917 | }
|
2918 | };
|
2919 |
|
2920 | const SOFT_HYPHEN = '\u00AD';
|
2921 | const HYPHEN = '-';
|
2922 | class LineWrapper extends events.EventEmitter {
|
2923 | constructor(document, options) {
|
2924 | super();
|
2925 | this.document = document;
|
2926 | this.indent = options.indent || 0;
|
2927 | this.characterSpacing = options.characterSpacing || 0;
|
2928 | this.wordSpacing = options.wordSpacing === 0;
|
2929 | this.columns = options.columns || 1;
|
2930 | this.columnGap = options.columnGap != null ? options.columnGap : 18;
|
2931 | this.lineWidth = (options.width - this.columnGap * (this.columns - 1)) / this.columns;
|
2932 | this.spaceLeft = this.lineWidth;
|
2933 | this.startX = this.document.x;
|
2934 | this.startY = this.document.y;
|
2935 | this.column = 1;
|
2936 | this.ellipsis = options.ellipsis;
|
2937 | this.continuedX = 0;
|
2938 | this.features = options.features;
|
2939 |
|
2940 |
|
2941 | if (options.height != null) {
|
2942 | this.height = options.height;
|
2943 | this.maxY = this.startY + options.height;
|
2944 | } else {
|
2945 | this.maxY = this.document.page.maxY();
|
2946 | }
|
2947 |
|
2948 |
|
2949 | this.on('firstLine', options => {
|
2950 |
|
2951 |
|
2952 |
|
2953 | const indent = this.continuedX || this.indent;
|
2954 | this.document.x += indent;
|
2955 | this.lineWidth -= indent;
|
2956 | return this.once('line', () => {
|
2957 | this.document.x -= indent;
|
2958 | this.lineWidth += indent;
|
2959 | if (options.continued && !this.continuedX) {
|
2960 | this.continuedX = this.indent;
|
2961 | }
|
2962 | if (!options.continued) {
|
2963 | return this.continuedX = 0;
|
2964 | }
|
2965 | });
|
2966 | });
|
2967 |
|
2968 |
|
2969 | this.on('lastLine', options => {
|
2970 | const {
|
2971 | align
|
2972 | } = options;
|
2973 | if (align === 'justify') {
|
2974 | options.align = 'left';
|
2975 | }
|
2976 | this.lastLine = true;
|
2977 | return this.once('line', () => {
|
2978 | this.document.y += options.paragraphGap || 0;
|
2979 | options.align = align;
|
2980 | return this.lastLine = false;
|
2981 | });
|
2982 | });
|
2983 | }
|
2984 | wordWidth(word) {
|
2985 | return this.document.widthOfString(word, this) + this.characterSpacing + this.wordSpacing;
|
2986 | }
|
2987 | canFit(word, w) {
|
2988 | if (word[word.length - 1] != SOFT_HYPHEN) {
|
2989 | return w <= this.spaceLeft;
|
2990 | }
|
2991 | return w + this.wordWidth(HYPHEN) <= this.spaceLeft;
|
2992 | }
|
2993 | eachWord(text, fn) {
|
2994 |
|
2995 | let bk;
|
2996 | const breaker = new LineBreaker(text);
|
2997 | let last = null;
|
2998 | const wordWidths = Object.create(null);
|
2999 | while (bk = breaker.nextBreak()) {
|
3000 | var shouldContinue;
|
3001 | let word = text.slice((last != null ? last.position : undefined) || 0, bk.position);
|
3002 | let w = wordWidths[word] != null ? wordWidths[word] : wordWidths[word] = this.wordWidth(word);
|
3003 |
|
3004 |
|
3005 |
|
3006 | if (w > this.lineWidth + this.continuedX) {
|
3007 |
|
3008 | let lbk = last;
|
3009 | const fbk = {};
|
3010 | while (word.length) {
|
3011 |
|
3012 | var l, mightGrow;
|
3013 | if (w > this.spaceLeft) {
|
3014 |
|
3015 |
|
3016 | l = Math.ceil(this.spaceLeft / (w / word.length));
|
3017 | w = this.wordWidth(word.slice(0, l));
|
3018 | mightGrow = w <= this.spaceLeft && l < word.length;
|
3019 | } else {
|
3020 | l = word.length;
|
3021 | }
|
3022 | let mustShrink = w > this.spaceLeft && l > 0;
|
3023 |
|
3024 | while (mustShrink || mightGrow) {
|
3025 | if (mustShrink) {
|
3026 | w = this.wordWidth(word.slice(0, --l));
|
3027 | mustShrink = w > this.spaceLeft && l > 0;
|
3028 | } else {
|
3029 | w = this.wordWidth(word.slice(0, ++l));
|
3030 | mustShrink = w > this.spaceLeft && l > 0;
|
3031 | mightGrow = w <= this.spaceLeft && l < word.length;
|
3032 | }
|
3033 | }
|
3034 |
|
3035 |
|
3036 | if (l === 0 && this.spaceLeft === this.lineWidth) {
|
3037 | l = 1;
|
3038 | }
|
3039 |
|
3040 |
|
3041 | fbk.required = bk.required || l < word.length;
|
3042 | shouldContinue = fn(word.slice(0, l), w, fbk, lbk);
|
3043 | lbk = {
|
3044 | required: false
|
3045 | };
|
3046 |
|
3047 |
|
3048 | word = word.slice(l);
|
3049 | w = this.wordWidth(word);
|
3050 | if (shouldContinue === false) {
|
3051 | break;
|
3052 | }
|
3053 | }
|
3054 | } else {
|
3055 |
|
3056 | shouldContinue = fn(word, w, bk, last);
|
3057 | }
|
3058 | if (shouldContinue === false) {
|
3059 | break;
|
3060 | }
|
3061 | last = bk;
|
3062 | }
|
3063 | }
|
3064 | wrap(text, options) {
|
3065 |
|
3066 | if (options.indent != null) {
|
3067 | this.indent = options.indent;
|
3068 | }
|
3069 | if (options.characterSpacing != null) {
|
3070 | this.characterSpacing = options.characterSpacing;
|
3071 | }
|
3072 | if (options.wordSpacing != null) {
|
3073 | this.wordSpacing = options.wordSpacing;
|
3074 | }
|
3075 | if (options.ellipsis != null) {
|
3076 | this.ellipsis = options.ellipsis;
|
3077 | }
|
3078 |
|
3079 |
|
3080 |
|
3081 |
|
3082 | const nextY = this.document.y + this.document.currentLineHeight(true);
|
3083 | if (this.document.y > this.maxY || nextY > this.maxY) {
|
3084 | this.nextSection();
|
3085 | }
|
3086 | let buffer = '';
|
3087 | let textWidth = 0;
|
3088 | let wc = 0;
|
3089 | let lc = 0;
|
3090 | let {
|
3091 | y
|
3092 | } = this.document;
|
3093 | const emitLine = () => {
|
3094 | options.textWidth = textWidth + this.wordSpacing * (wc - 1);
|
3095 | options.wordCount = wc;
|
3096 | options.lineWidth = this.lineWidth;
|
3097 | ({
|
3098 | y
|
3099 | } = this.document);
|
3100 | this.emit('line', buffer, options, this);
|
3101 | return lc++;
|
3102 | };
|
3103 | this.emit('sectionStart', options, this);
|
3104 | this.eachWord(text, (word, w, bk, last) => {
|
3105 | if (last == null || last.required) {
|
3106 | this.emit('firstLine', options, this);
|
3107 | this.spaceLeft = this.lineWidth;
|
3108 | }
|
3109 | if (this.canFit(word, w)) {
|
3110 | buffer += word;
|
3111 | textWidth += w;
|
3112 | wc++;
|
3113 | }
|
3114 | if (bk.required || !this.canFit(word, w)) {
|
3115 |
|
3116 |
|
3117 | const lh = this.document.currentLineHeight(true);
|
3118 | if (this.height != null && this.ellipsis && this.document.y + lh * 2 > this.maxY && this.column >= this.columns) {
|
3119 | if (this.ellipsis === true) {
|
3120 | this.ellipsis = '…';
|
3121 | }
|
3122 | buffer = buffer.replace(/\s+$/, '');
|
3123 | textWidth = this.wordWidth(buffer + this.ellipsis);
|
3124 |
|
3125 |
|
3126 |
|
3127 | while (buffer && textWidth > this.lineWidth) {
|
3128 | buffer = buffer.slice(0, -1).replace(/\s+$/, '');
|
3129 | textWidth = this.wordWidth(buffer + this.ellipsis);
|
3130 | }
|
3131 |
|
3132 | if (textWidth <= this.lineWidth) {
|
3133 | buffer = buffer + this.ellipsis;
|
3134 | }
|
3135 | textWidth = this.wordWidth(buffer);
|
3136 | }
|
3137 | if (bk.required) {
|
3138 | if (w > this.spaceLeft) {
|
3139 | emitLine();
|
3140 | buffer = word;
|
3141 | textWidth = w;
|
3142 | wc = 1;
|
3143 | }
|
3144 | this.emit('lastLine', options, this);
|
3145 | }
|
3146 |
|
3147 |
|
3148 | if (buffer[buffer.length - 1] == SOFT_HYPHEN) {
|
3149 | buffer = buffer.slice(0, -1) + HYPHEN;
|
3150 | this.spaceLeft -= this.wordWidth(HYPHEN);
|
3151 | }
|
3152 | emitLine();
|
3153 |
|
3154 |
|
3155 |
|
3156 | if (this.document.y + lh > this.maxY) {
|
3157 | const shouldContinue = this.nextSection();
|
3158 |
|
3159 |
|
3160 | if (!shouldContinue) {
|
3161 | wc = 0;
|
3162 | buffer = '';
|
3163 | return false;
|
3164 | }
|
3165 | }
|
3166 |
|
3167 |
|
3168 | if (bk.required) {
|
3169 | this.spaceLeft = this.lineWidth;
|
3170 | buffer = '';
|
3171 | textWidth = 0;
|
3172 | return wc = 0;
|
3173 | } else {
|
3174 |
|
3175 | this.spaceLeft = this.lineWidth - w;
|
3176 | buffer = word;
|
3177 | textWidth = w;
|
3178 | return wc = 1;
|
3179 | }
|
3180 | } else {
|
3181 | return this.spaceLeft -= w;
|
3182 | }
|
3183 | });
|
3184 | if (wc > 0) {
|
3185 | this.emit('lastLine', options, this);
|
3186 | emitLine();
|
3187 | }
|
3188 | this.emit('sectionEnd', options, this);
|
3189 |
|
3190 |
|
3191 |
|
3192 |
|
3193 | if (options.continued === true) {
|
3194 | if (lc > 1) {
|
3195 | this.continuedX = 0;
|
3196 | }
|
3197 | this.continuedX += options.textWidth || 0;
|
3198 | return this.document.y = y;
|
3199 | } else {
|
3200 | return this.document.x = this.startX;
|
3201 | }
|
3202 | }
|
3203 | nextSection(options) {
|
3204 | this.emit('sectionEnd', options, this);
|
3205 | if (++this.column > this.columns) {
|
3206 |
|
3207 |
|
3208 | if (this.height != null) {
|
3209 | return false;
|
3210 | }
|
3211 | this.document.continueOnNewPage();
|
3212 | this.column = 1;
|
3213 | this.startY = this.document.page.margins.top;
|
3214 | this.maxY = this.document.page.maxY();
|
3215 | this.document.x = this.startX;
|
3216 | if (this.document._fillColor) {
|
3217 | this.document.fillColor(...this.document._fillColor);
|
3218 | }
|
3219 | this.emit('pageBreak', options, this);
|
3220 | } else {
|
3221 | this.document.x += this.lineWidth + this.columnGap;
|
3222 | this.document.y = this.startY;
|
3223 | this.emit('columnBreak', options, this);
|
3224 | }
|
3225 | this.emit('sectionStart', options, this);
|
3226 | return true;
|
3227 | }
|
3228 | }
|
3229 |
|
3230 | const {
|
3231 | number: number$2
|
3232 | } = PDFObject;
|
3233 | var TextMixin = {
|
3234 | initText() {
|
3235 | this._line = this._line.bind(this);
|
3236 |
|
3237 | this.x = 0;
|
3238 | this.y = 0;
|
3239 | return this._lineGap = 0;
|
3240 | },
|
3241 | lineGap(_lineGap) {
|
3242 | this._lineGap = _lineGap;
|
3243 | return this;
|
3244 | },
|
3245 | moveDown(lines) {
|
3246 | if (lines == null) {
|
3247 | lines = 1;
|
3248 | }
|
3249 | this.y += this.currentLineHeight(true) * lines + this._lineGap;
|
3250 | return this;
|
3251 | },
|
3252 | moveUp(lines) {
|
3253 | if (lines == null) {
|
3254 | lines = 1;
|
3255 | }
|
3256 | this.y -= this.currentLineHeight(true) * lines + this._lineGap;
|
3257 | return this;
|
3258 | },
|
3259 | _text(text, x, y, options, lineCallback) {
|
3260 | options = this._initOptions(x, y, options);
|
3261 |
|
3262 |
|
3263 | text = text == null ? '' : `${text}`;
|
3264 |
|
3265 |
|
3266 | if (options.wordSpacing) {
|
3267 | text = text.replace(/\s{2,}/g, ' ');
|
3268 | }
|
3269 | const addStructure = () => {
|
3270 | if (options.structParent) {
|
3271 | options.structParent.add(this.struct(options.structType || 'P', [this.markStructureContent(options.structType || 'P')]));
|
3272 | }
|
3273 | };
|
3274 |
|
3275 |
|
3276 | if (options.width) {
|
3277 | let wrapper = this._wrapper;
|
3278 | if (!wrapper) {
|
3279 | wrapper = new LineWrapper(this, options);
|
3280 | wrapper.on('line', lineCallback);
|
3281 | wrapper.on('firstLine', addStructure);
|
3282 | }
|
3283 | this._wrapper = options.continued ? wrapper : null;
|
3284 | this._textOptions = options.continued ? options : null;
|
3285 | wrapper.wrap(text, options);
|
3286 |
|
3287 |
|
3288 | } else {
|
3289 | for (let line of text.split('\n')) {
|
3290 | addStructure();
|
3291 | lineCallback(line, options);
|
3292 | }
|
3293 | }
|
3294 | return this;
|
3295 | },
|
3296 | text(text, x, y, options) {
|
3297 | return this._text(text, x, y, options, this._line);
|
3298 | },
|
3299 | widthOfString(string, options = {}) {
|
3300 | return this._font.widthOfString(string, this._fontSize, options.features) + (options.characterSpacing || 0) * (string.length - 1);
|
3301 | },
|
3302 | heightOfString(text, options) {
|
3303 | const {
|
3304 | x,
|
3305 | y
|
3306 | } = this;
|
3307 | options = this._initOptions(options);
|
3308 | options.height = Infinity;
|
3309 |
|
3310 | const lineGap = options.lineGap || this._lineGap || 0;
|
3311 | this._text(text, this.x, this.y, options, () => {
|
3312 | return this.y += this.currentLineHeight(true) + lineGap;
|
3313 | });
|
3314 | const height = this.y - y;
|
3315 | this.x = x;
|
3316 | this.y = y;
|
3317 | return height;
|
3318 | },
|
3319 | list(list, x, y, options, wrapper) {
|
3320 | options = this._initOptions(x, y, options);
|
3321 | const listType = options.listType || 'bullet';
|
3322 | const unit = Math.round(this._font.ascender / 1000 * this._fontSize);
|
3323 | const midLine = unit / 2;
|
3324 | const r = options.bulletRadius || unit / 3;
|
3325 | const indent = options.textIndent || (listType === 'bullet' ? r * 5 : unit * 2);
|
3326 | const itemIndent = options.bulletIndent || (listType === 'bullet' ? r * 8 : unit * 2);
|
3327 | let level = 1;
|
3328 | const items = [];
|
3329 | const levels = [];
|
3330 | const numbers = [];
|
3331 | var flatten = function (list) {
|
3332 | let n = 1;
|
3333 | for (let i = 0; i < list.length; i++) {
|
3334 | const item = list[i];
|
3335 | if (Array.isArray(item)) {
|
3336 | level++;
|
3337 | flatten(item);
|
3338 | level--;
|
3339 | } else {
|
3340 | items.push(item);
|
3341 | levels.push(level);
|
3342 | if (listType !== 'bullet') {
|
3343 | numbers.push(n++);
|
3344 | }
|
3345 | }
|
3346 | }
|
3347 | };
|
3348 | flatten(list);
|
3349 | const label = function (n) {
|
3350 | switch (listType) {
|
3351 | case 'numbered':
|
3352 | return `${n}.`;
|
3353 | case 'lettered':
|
3354 | var letter = String.fromCharCode((n - 1) % 26 + 65);
|
3355 | var times = Math.floor((n - 1) / 26 + 1);
|
3356 | var text = Array(times + 1).join(letter);
|
3357 | return `${text}.`;
|
3358 | }
|
3359 | };
|
3360 | const drawListItem = function (listItem) {
|
3361 | wrapper = new LineWrapper(this, options);
|
3362 | wrapper.on('line', this._line);
|
3363 | level = 1;
|
3364 | let i = 0;
|
3365 | wrapper.once('firstLine', () => {
|
3366 | let item, itemType, labelType, bodyType;
|
3367 | if (options.structParent) {
|
3368 | if (options.structTypes) {
|
3369 | [itemType, labelType, bodyType] = options.structTypes;
|
3370 | } else {
|
3371 | [itemType, labelType, bodyType] = ['LI', 'Lbl', 'LBody'];
|
3372 | }
|
3373 | }
|
3374 | if (itemType) {
|
3375 | item = this.struct(itemType);
|
3376 | options.structParent.add(item);
|
3377 | } else if (options.structParent) {
|
3378 | item = options.structParent;
|
3379 | }
|
3380 | let l;
|
3381 | if ((l = levels[i++]) !== level) {
|
3382 | const diff = itemIndent * (l - level);
|
3383 | this.x += diff;
|
3384 | wrapper.lineWidth -= diff;
|
3385 | level = l;
|
3386 | }
|
3387 | if (item && (labelType || bodyType)) {
|
3388 | item.add(this.struct(labelType || bodyType, [this.markStructureContent(labelType || bodyType)]));
|
3389 | }
|
3390 | switch (listType) {
|
3391 | case 'bullet':
|
3392 | this.circle(this.x - indent + r, this.y + midLine, r);
|
3393 | this.fill();
|
3394 | break;
|
3395 | case 'numbered':
|
3396 | case 'lettered':
|
3397 | var text = label(numbers[i - 1]);
|
3398 | this._fragment(text, this.x - indent, this.y, options);
|
3399 | break;
|
3400 | }
|
3401 | if (item && labelType && bodyType) {
|
3402 | item.add(this.struct(bodyType, [this.markStructureContent(bodyType)]));
|
3403 | }
|
3404 | if (item && item !== options.structParent) {
|
3405 | item.end();
|
3406 | }
|
3407 | });
|
3408 | wrapper.on('sectionStart', () => {
|
3409 | const pos = indent + itemIndent * (level - 1);
|
3410 | this.x += pos;
|
3411 | return wrapper.lineWidth -= pos;
|
3412 | });
|
3413 | wrapper.on('sectionEnd', () => {
|
3414 | const pos = indent + itemIndent * (level - 1);
|
3415 | this.x -= pos;
|
3416 | return wrapper.lineWidth += pos;
|
3417 | });
|
3418 | wrapper.wrap(listItem, options);
|
3419 | };
|
3420 | for (let i = 0; i < items.length; i++) {
|
3421 | drawListItem.call(this, items[i]);
|
3422 | }
|
3423 | return this;
|
3424 | },
|
3425 | _initOptions(x = {}, y, options = {}) {
|
3426 | if (typeof x === 'object') {
|
3427 | options = x;
|
3428 | x = null;
|
3429 | }
|
3430 |
|
3431 |
|
3432 | const result = Object.assign({}, options);
|
3433 |
|
3434 |
|
3435 | if (this._textOptions) {
|
3436 | for (let key in this._textOptions) {
|
3437 | const val = this._textOptions[key];
|
3438 | if (key !== 'continued') {
|
3439 | if (result[key] === undefined) {
|
3440 | result[key] = val;
|
3441 | }
|
3442 | }
|
3443 | }
|
3444 | }
|
3445 |
|
3446 |
|
3447 | if (x != null) {
|
3448 | this.x = x;
|
3449 | }
|
3450 | if (y != null) {
|
3451 | this.y = y;
|
3452 | }
|
3453 |
|
3454 |
|
3455 | if (result.lineBreak !== false) {
|
3456 | if (result.width == null) {
|
3457 | result.width = this.page.width - this.x - this.page.margins.right;
|
3458 | }
|
3459 | result.width = Math.max(result.width, 0);
|
3460 | }
|
3461 | if (!result.columns) {
|
3462 | result.columns = 0;
|
3463 | }
|
3464 | if (result.columnGap == null) {
|
3465 | result.columnGap = 18;
|
3466 | }
|
3467 |
|
3468 | return result;
|
3469 | },
|
3470 | _line(text, options = {}, wrapper) {
|
3471 | this._fragment(text, this.x, this.y, options);
|
3472 | const lineGap = options.lineGap || this._lineGap || 0;
|
3473 | if (!wrapper) {
|
3474 | return this.x += this.widthOfString(text);
|
3475 | } else {
|
3476 | return this.y += this.currentLineHeight(true) + lineGap;
|
3477 | }
|
3478 | },
|
3479 | _fragment(text, x, y, options) {
|
3480 | let dy, encoded, i, positions, textWidth, words;
|
3481 | text = `${text}`.replace(/\n/g, '');
|
3482 | if (text.length === 0) {
|
3483 | return;
|
3484 | }
|
3485 |
|
3486 |
|
3487 | const align = options.align || 'left';
|
3488 | let wordSpacing = options.wordSpacing || 0;
|
3489 | const characterSpacing = options.characterSpacing || 0;
|
3490 |
|
3491 |
|
3492 | if (options.width) {
|
3493 | switch (align) {
|
3494 | case 'right':
|
3495 | textWidth = this.widthOfString(text.replace(/\s+$/, ''), options);
|
3496 | x += options.lineWidth - textWidth;
|
3497 | break;
|
3498 | case 'center':
|
3499 | x += options.lineWidth / 2 - options.textWidth / 2;
|
3500 | break;
|
3501 | case 'justify':
|
3502 |
|
3503 | words = text.trim().split(/\s+/);
|
3504 | textWidth = this.widthOfString(text.replace(/\s+/g, ''), options);
|
3505 | var spaceWidth = this.widthOfString(' ') + characterSpacing;
|
3506 | wordSpacing = Math.max(0, (options.lineWidth - textWidth) / Math.max(1, words.length - 1) - spaceWidth);
|
3507 | break;
|
3508 | }
|
3509 | }
|
3510 |
|
3511 |
|
3512 | if (typeof options.baseline === 'number') {
|
3513 | dy = -options.baseline;
|
3514 | } else {
|
3515 | switch (options.baseline) {
|
3516 | case 'svg-middle':
|
3517 | dy = 0.5 * this._font.xHeight;
|
3518 | break;
|
3519 | case 'middle':
|
3520 | case 'svg-central':
|
3521 | dy = 0.5 * (this._font.descender + this._font.ascender);
|
3522 | break;
|
3523 | case 'bottom':
|
3524 | case 'ideographic':
|
3525 | dy = this._font.descender;
|
3526 | break;
|
3527 | case 'alphabetic':
|
3528 | dy = 0;
|
3529 | break;
|
3530 | case 'mathematical':
|
3531 | dy = 0.5 * this._font.ascender;
|
3532 | break;
|
3533 | case 'hanging':
|
3534 | dy = 0.8 * this._font.ascender;
|
3535 | break;
|
3536 | case 'top':
|
3537 | dy = this._font.ascender;
|
3538 | break;
|
3539 | default:
|
3540 | dy = this._font.ascender;
|
3541 | }
|
3542 | dy = dy / 1000 * this._fontSize;
|
3543 | }
|
3544 |
|
3545 |
|
3546 | const renderedWidth = options.textWidth + wordSpacing * (options.wordCount - 1) + characterSpacing * (text.length - 1);
|
3547 |
|
3548 |
|
3549 | if (options.link != null) {
|
3550 | this.link(x, y, renderedWidth, this.currentLineHeight(), options.link);
|
3551 | }
|
3552 | if (options.goTo != null) {
|
3553 | this.goTo(x, y, renderedWidth, this.currentLineHeight(), options.goTo);
|
3554 | }
|
3555 | if (options.destination != null) {
|
3556 | this.addNamedDestination(options.destination, 'XYZ', x, y, null);
|
3557 | }
|
3558 |
|
3559 |
|
3560 | if (options.underline) {
|
3561 | this.save();
|
3562 | if (!options.stroke) {
|
3563 | this.strokeColor(...(this._fillColor || []));
|
3564 | }
|
3565 | const lineWidth = this._fontSize < 10 ? 0.5 : Math.floor(this._fontSize / 10);
|
3566 | this.lineWidth(lineWidth);
|
3567 | let lineY = y + this.currentLineHeight() - lineWidth;
|
3568 | this.moveTo(x, lineY);
|
3569 | this.lineTo(x + renderedWidth, lineY);
|
3570 | this.stroke();
|
3571 | this.restore();
|
3572 | }
|
3573 |
|
3574 |
|
3575 | if (options.strike) {
|
3576 | this.save();
|
3577 | if (!options.stroke) {
|
3578 | this.strokeColor(...(this._fillColor || []));
|
3579 | }
|
3580 | const lineWidth = this._fontSize < 10 ? 0.5 : Math.floor(this._fontSize / 10);
|
3581 | this.lineWidth(lineWidth);
|
3582 | let lineY = y + this.currentLineHeight() / 2;
|
3583 | this.moveTo(x, lineY);
|
3584 | this.lineTo(x + renderedWidth, lineY);
|
3585 | this.stroke();
|
3586 | this.restore();
|
3587 | }
|
3588 | this.save();
|
3589 |
|
3590 |
|
3591 | if (options.oblique) {
|
3592 | let skew;
|
3593 | if (typeof options.oblique === 'number') {
|
3594 | skew = -Math.tan(options.oblique * Math.PI / 180);
|
3595 | } else {
|
3596 | skew = -0.25;
|
3597 | }
|
3598 | this.transform(1, 0, 0, 1, x, y);
|
3599 | this.transform(1, 0, skew, 1, -skew * dy, 0);
|
3600 | this.transform(1, 0, 0, 1, -x, -y);
|
3601 | }
|
3602 |
|
3603 |
|
3604 | this.transform(1, 0, 0, -1, 0, this.page.height);
|
3605 | y = this.page.height - y - dy;
|
3606 |
|
3607 |
|
3608 | if (this.page.fonts[this._font.id] == null) {
|
3609 | this.page.fonts[this._font.id] = this._font.ref();
|
3610 | }
|
3611 |
|
3612 |
|
3613 | this.addContent('BT');
|
3614 |
|
3615 |
|
3616 | this.addContent(`1 0 0 1 ${number$2(x)} ${number$2(y)} Tm`);
|
3617 |
|
3618 |
|
3619 | this.addContent(`/${this._font.id} ${number$2(this._fontSize)} Tf`);
|
3620 |
|
3621 |
|
3622 | const mode = options.fill && options.stroke ? 2 : options.stroke ? 1 : 0;
|
3623 | if (mode) {
|
3624 | this.addContent(`${mode} Tr`);
|
3625 | }
|
3626 |
|
3627 |
|
3628 | if (characterSpacing) {
|
3629 | this.addContent(`${number$2(characterSpacing)} Tc`);
|
3630 | }
|
3631 |
|
3632 |
|
3633 |
|
3634 |
|
3635 |
|
3636 | if (wordSpacing) {
|
3637 | words = text.trim().split(/\s+/);
|
3638 | wordSpacing += this.widthOfString(' ') + characterSpacing;
|
3639 | wordSpacing *= 1000 / this._fontSize;
|
3640 | encoded = [];
|
3641 | positions = [];
|
3642 | for (let word of words) {
|
3643 | const [encodedWord, positionsWord] = this._font.encode(word, options.features);
|
3644 | encoded = encoded.concat(encodedWord);
|
3645 | positions = positions.concat(positionsWord);
|
3646 |
|
3647 |
|
3648 |
|
3649 | const space = {};
|
3650 | const object = positions[positions.length - 1];
|
3651 | for (let key in object) {
|
3652 | const val = object[key];
|
3653 | space[key] = val;
|
3654 | }
|
3655 | space.xAdvance += wordSpacing;
|
3656 | positions[positions.length - 1] = space;
|
3657 | }
|
3658 | } else {
|
3659 | [encoded, positions] = this._font.encode(text, options.features);
|
3660 | }
|
3661 | const scale = this._fontSize / 1000;
|
3662 | const commands = [];
|
3663 | let last = 0;
|
3664 | let hadOffset = false;
|
3665 |
|
3666 |
|
3667 | const addSegment = cur => {
|
3668 | if (last < cur) {
|
3669 | const hex = encoded.slice(last, cur).join('');
|
3670 | const advance = positions[cur - 1].xAdvance - positions[cur - 1].advanceWidth;
|
3671 | commands.push(`<${hex}> ${number$2(-advance)}`);
|
3672 | }
|
3673 | return last = cur;
|
3674 | };
|
3675 |
|
3676 |
|
3677 | const flush = i => {
|
3678 | addSegment(i);
|
3679 | if (commands.length > 0) {
|
3680 | this.addContent(`[${commands.join(' ')}] TJ`);
|
3681 | return commands.length = 0;
|
3682 | }
|
3683 | };
|
3684 | for (i = 0; i < positions.length; i++) {
|
3685 |
|
3686 |
|
3687 | const pos = positions[i];
|
3688 | if (pos.xOffset || pos.yOffset) {
|
3689 |
|
3690 | flush(i);
|
3691 |
|
3692 |
|
3693 | this.addContent(`1 0 0 1 ${number$2(x + pos.xOffset * scale)} ${number$2(y + pos.yOffset * scale)} Tm`);
|
3694 | flush(i + 1);
|
3695 | hadOffset = true;
|
3696 | } else {
|
3697 |
|
3698 | if (hadOffset) {
|
3699 | this.addContent(`1 0 0 1 ${number$2(x)} ${number$2(y)} Tm`);
|
3700 | hadOffset = false;
|
3701 | }
|
3702 |
|
3703 |
|
3704 | if (pos.xAdvance - pos.advanceWidth !== 0) {
|
3705 | addSegment(i + 1);
|
3706 | }
|
3707 | }
|
3708 | x += pos.xAdvance * scale;
|
3709 | }
|
3710 |
|
3711 |
|
3712 | flush(i);
|
3713 |
|
3714 |
|
3715 | this.addContent('ET');
|
3716 |
|
3717 |
|
3718 | return this.restore();
|
3719 | }
|
3720 | };
|
3721 |
|
3722 | const MARKERS = [0xffc0, 0xffc1, 0xffc2, 0xffc3, 0xffc5, 0xffc6, 0xffc7, 0xffc8, 0xffc9, 0xffca, 0xffcb, 0xffcc, 0xffcd, 0xffce, 0xffcf];
|
3723 | const COLOR_SPACE_MAP = {
|
3724 | 1: 'DeviceGray',
|
3725 | 3: 'DeviceRGB',
|
3726 | 4: 'DeviceCMYK'
|
3727 | };
|
3728 | class JPEG {
|
3729 | constructor(data, label) {
|
3730 | let marker;
|
3731 | this.data = data;
|
3732 | this.label = label;
|
3733 | if (this.data.readUInt16BE(0) !== 0xffd8) {
|
3734 | throw 'SOI not found in JPEG';
|
3735 | }
|
3736 |
|
3737 |
|
3738 | this.orientation = exif.fromBuffer(this.data).Orientation || 1;
|
3739 | let pos = 2;
|
3740 | while (pos < this.data.length) {
|
3741 | marker = this.data.readUInt16BE(pos);
|
3742 | pos += 2;
|
3743 | if (MARKERS.includes(marker)) {
|
3744 | break;
|
3745 | }
|
3746 | pos += this.data.readUInt16BE(pos);
|
3747 | }
|
3748 | if (!MARKERS.includes(marker)) {
|
3749 | throw 'Invalid JPEG.';
|
3750 | }
|
3751 | pos += 2;
|
3752 | this.bits = this.data[pos++];
|
3753 | this.height = this.data.readUInt16BE(pos);
|
3754 | pos += 2;
|
3755 | this.width = this.data.readUInt16BE(pos);
|
3756 | pos += 2;
|
3757 | const channels = this.data[pos++];
|
3758 | this.colorSpace = COLOR_SPACE_MAP[channels];
|
3759 | this.obj = null;
|
3760 | }
|
3761 | embed(document) {
|
3762 | if (this.obj) {
|
3763 | return;
|
3764 | }
|
3765 | this.obj = document.ref({
|
3766 | Type: 'XObject',
|
3767 | Subtype: 'Image',
|
3768 | BitsPerComponent: this.bits,
|
3769 | Width: this.width,
|
3770 | Height: this.height,
|
3771 | ColorSpace: this.colorSpace,
|
3772 | Filter: 'DCTDecode'
|
3773 | });
|
3774 |
|
3775 |
|
3776 |
|
3777 |
|
3778 | if (this.colorSpace === 'DeviceCMYK') {
|
3779 | this.obj.data['Decode'] = [1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0];
|
3780 | }
|
3781 | this.obj.end(this.data);
|
3782 |
|
3783 |
|
3784 | return this.data = null;
|
3785 | }
|
3786 | }
|
3787 |
|
3788 | class PNGImage {
|
3789 | constructor(data, label) {
|
3790 | this.label = label;
|
3791 | this.image = new PNG(data);
|
3792 | this.width = this.image.width;
|
3793 | this.height = this.image.height;
|
3794 | this.imgData = this.image.imgData;
|
3795 | this.obj = null;
|
3796 | }
|
3797 | embed(document) {
|
3798 | let dataDecoded = false;
|
3799 | this.document = document;
|
3800 | if (this.obj) {
|
3801 | return;
|
3802 | }
|
3803 | const hasAlphaChannel = this.image.hasAlphaChannel;
|
3804 | const isInterlaced = this.image.interlaceMethod === 1;
|
3805 | this.obj = this.document.ref({
|
3806 | Type: 'XObject',
|
3807 | Subtype: 'Image',
|
3808 | BitsPerComponent: hasAlphaChannel ? 8 : this.image.bits,
|
3809 | Width: this.width,
|
3810 | Height: this.height,
|
3811 | Filter: 'FlateDecode'
|
3812 | });
|
3813 | if (!hasAlphaChannel) {
|
3814 | const params = this.document.ref({
|
3815 | Predictor: isInterlaced ? 1 : 15,
|
3816 | Colors: this.image.colors,
|
3817 | BitsPerComponent: this.image.bits,
|
3818 | Columns: this.width
|
3819 | });
|
3820 | this.obj.data['DecodeParms'] = params;
|
3821 | params.end();
|
3822 | }
|
3823 | if (this.image.palette.length === 0) {
|
3824 | this.obj.data['ColorSpace'] = this.image.colorSpace;
|
3825 | } else {
|
3826 |
|
3827 | const palette = this.document.ref();
|
3828 | palette.end(Buffer.from(this.image.palette));
|
3829 |
|
3830 |
|
3831 | this.obj.data['ColorSpace'] = ['Indexed', 'DeviceRGB', this.image.palette.length / 3 - 1, palette];
|
3832 | }
|
3833 |
|
3834 |
|
3835 |
|
3836 | if (this.image.transparency.grayscale != null) {
|
3837 |
|
3838 |
|
3839 | const val = this.image.transparency.grayscale;
|
3840 | this.obj.data['Mask'] = [val, val];
|
3841 | } else if (this.image.transparency.rgb) {
|
3842 |
|
3843 |
|
3844 | const {
|
3845 | rgb
|
3846 | } = this.image.transparency;
|
3847 | const mask = [];
|
3848 | for (let x of rgb) {
|
3849 | mask.push(x, x);
|
3850 | }
|
3851 | this.obj.data['Mask'] = mask;
|
3852 | } else if (this.image.transparency.indexed) {
|
3853 |
|
3854 |
|
3855 | dataDecoded = true;
|
3856 | return this.loadIndexedAlphaChannel();
|
3857 | } else if (hasAlphaChannel) {
|
3858 |
|
3859 |
|
3860 |
|
3861 | dataDecoded = true;
|
3862 | return this.splitAlphaChannel();
|
3863 | }
|
3864 | if (isInterlaced && !dataDecoded) {
|
3865 | return this.decodeData();
|
3866 | }
|
3867 | this.finalize();
|
3868 | }
|
3869 | finalize() {
|
3870 | if (this.alphaChannel) {
|
3871 | const sMask = this.document.ref({
|
3872 | Type: 'XObject',
|
3873 | Subtype: 'Image',
|
3874 | Height: this.height,
|
3875 | Width: this.width,
|
3876 | BitsPerComponent: 8,
|
3877 | Filter: 'FlateDecode',
|
3878 | ColorSpace: 'DeviceGray',
|
3879 | Decode: [0, 1]
|
3880 | });
|
3881 | sMask.end(this.alphaChannel);
|
3882 | this.obj.data['SMask'] = sMask;
|
3883 | }
|
3884 |
|
3885 |
|
3886 | this.obj.end(this.imgData);
|
3887 |
|
3888 |
|
3889 | this.image = null;
|
3890 | return this.imgData = null;
|
3891 | }
|
3892 | splitAlphaChannel() {
|
3893 | return this.image.decodePixels(pixels => {
|
3894 | let a, p;
|
3895 | const colorCount = this.image.colors;
|
3896 | const pixelCount = this.width * this.height;
|
3897 | const imgData = Buffer.alloc(pixelCount * colorCount);
|
3898 | const alphaChannel = Buffer.alloc(pixelCount);
|
3899 | let i = p = a = 0;
|
3900 | const len = pixels.length;
|
3901 |
|
3902 | const skipByteCount = this.image.bits === 16 ? 1 : 0;
|
3903 | while (i < len) {
|
3904 | for (let colorIndex = 0; colorIndex < colorCount; colorIndex++) {
|
3905 | imgData[p++] = pixels[i++];
|
3906 | i += skipByteCount;
|
3907 | }
|
3908 | alphaChannel[a++] = pixels[i++];
|
3909 | i += skipByteCount;
|
3910 | }
|
3911 | this.imgData = zlib.deflateSync(imgData);
|
3912 | this.alphaChannel = zlib.deflateSync(alphaChannel);
|
3913 | return this.finalize();
|
3914 | });
|
3915 | }
|
3916 | loadIndexedAlphaChannel() {
|
3917 | const transparency = this.image.transparency.indexed;
|
3918 | return this.image.decodePixels(pixels => {
|
3919 | const alphaChannel = Buffer.alloc(this.width * this.height);
|
3920 | let i = 0;
|
3921 | for (let j = 0, end = pixels.length; j < end; j++) {
|
3922 | alphaChannel[i++] = transparency[pixels[j]];
|
3923 | }
|
3924 | this.alphaChannel = zlib.deflateSync(alphaChannel);
|
3925 | return this.finalize();
|
3926 | });
|
3927 | }
|
3928 | decodeData() {
|
3929 | this.image.decodePixels(pixels => {
|
3930 | this.imgData = zlib.deflateSync(pixels);
|
3931 | this.finalize();
|
3932 | });
|
3933 | }
|
3934 | }
|
3935 |
|
3936 |
|
3937 |
|
3938 |
|
3939 |
|
3940 | class PDFImage {
|
3941 | static open(src, label) {
|
3942 | let data;
|
3943 | if (Buffer.isBuffer(src)) {
|
3944 | data = src;
|
3945 | } else if (src instanceof ArrayBuffer) {
|
3946 | data = Buffer.from(new Uint8Array(src));
|
3947 | } else {
|
3948 | let match;
|
3949 | if (match = /^data:.+?;base64,(.*)$/.exec(src)) {
|
3950 | data = Buffer.from(match[1], 'base64');
|
3951 | } else {
|
3952 | data = fs.readFileSync(src);
|
3953 | if (!data) {
|
3954 | return;
|
3955 | }
|
3956 | }
|
3957 | }
|
3958 | if (data[0] === 0xff && data[1] === 0xd8) {
|
3959 | return new JPEG(data, label);
|
3960 | } else if (data[0] === 0x89 && data.toString('ascii', 1, 4) === 'PNG') {
|
3961 | return new PNGImage(data, label);
|
3962 | } else {
|
3963 | throw new Error('Unknown image format.');
|
3964 | }
|
3965 | }
|
3966 | }
|
3967 |
|
3968 | var ImagesMixin = {
|
3969 | initImages() {
|
3970 | this._imageRegistry = {};
|
3971 | return this._imageCount = 0;
|
3972 | },
|
3973 | image(src, x, y, options = {}) {
|
3974 | let bh, bp, bw, image, ip, left, left1, rotateAngle, originX, originY;
|
3975 | if (typeof x === 'object') {
|
3976 | options = x;
|
3977 | x = null;
|
3978 | }
|
3979 |
|
3980 |
|
3981 | const ignoreOrientation = options.ignoreOrientation || options.ignoreOrientation !== false && this.options.ignoreOrientation;
|
3982 | x = (left = x != null ? x : options.x) != null ? left : this.x;
|
3983 | y = (left1 = y != null ? y : options.y) != null ? left1 : this.y;
|
3984 | if (typeof src === 'string') {
|
3985 | image = this._imageRegistry[src];
|
3986 | }
|
3987 | if (!image) {
|
3988 | if (src.width && src.height) {
|
3989 | image = src;
|
3990 | } else {
|
3991 | image = this.openImage(src);
|
3992 | }
|
3993 | }
|
3994 | if (!image.obj) {
|
3995 | image.embed(this);
|
3996 | }
|
3997 | if (this.page.xobjects[image.label] == null) {
|
3998 | this.page.xobjects[image.label] = image.obj;
|
3999 | }
|
4000 | let {
|
4001 | width,
|
4002 | height
|
4003 | } = image;
|
4004 |
|
4005 |
|
4006 | if (!ignoreOrientation && image.orientation > 4) {
|
4007 | [width, height] = [height, width];
|
4008 | }
|
4009 | let w = options.width || width;
|
4010 | let h = options.height || height;
|
4011 | if (options.width && !options.height) {
|
4012 | const wp = w / width;
|
4013 | w = width * wp;
|
4014 | h = height * wp;
|
4015 | } else if (options.height && !options.width) {
|
4016 | const hp = h / height;
|
4017 | w = width * hp;
|
4018 | h = height * hp;
|
4019 | } else if (options.scale) {
|
4020 | w = width * options.scale;
|
4021 | h = height * options.scale;
|
4022 | } else if (options.fit) {
|
4023 | [bw, bh] = options.fit;
|
4024 | bp = bw / bh;
|
4025 | ip = width / height;
|
4026 | if (ip > bp) {
|
4027 | w = bw;
|
4028 | h = bw / ip;
|
4029 | } else {
|
4030 | h = bh;
|
4031 | w = bh * ip;
|
4032 | }
|
4033 | } else if (options.cover) {
|
4034 | [bw, bh] = options.cover;
|
4035 | bp = bw / bh;
|
4036 | ip = width / height;
|
4037 | if (ip > bp) {
|
4038 | h = bh;
|
4039 | w = bh * ip;
|
4040 | } else {
|
4041 | w = bw;
|
4042 | h = bw / ip;
|
4043 | }
|
4044 | }
|
4045 | if (options.fit || options.cover) {
|
4046 | if (options.align === 'center') {
|
4047 | x = x + bw / 2 - w / 2;
|
4048 | } else if (options.align === 'right') {
|
4049 | x = x + bw - w;
|
4050 | }
|
4051 | if (options.valign === 'center') {
|
4052 | y = y + bh / 2 - h / 2;
|
4053 | } else if (options.valign === 'bottom') {
|
4054 | y = y + bh - h;
|
4055 | }
|
4056 | }
|
4057 | if (!ignoreOrientation) {
|
4058 | switch (image.orientation) {
|
4059 |
|
4060 | default:
|
4061 | case 1:
|
4062 | h = -h;
|
4063 | y -= h;
|
4064 | rotateAngle = 0;
|
4065 | break;
|
4066 |
|
4067 | case 2:
|
4068 | w = -w;
|
4069 | h = -h;
|
4070 | x -= w;
|
4071 | y -= h;
|
4072 | rotateAngle = 0;
|
4073 | break;
|
4074 |
|
4075 | case 3:
|
4076 | originX = x;
|
4077 | originY = y;
|
4078 | h = -h;
|
4079 | x -= w;
|
4080 | rotateAngle = 180;
|
4081 | break;
|
4082 |
|
4083 | case 4:
|
4084 |
|
4085 |
|
4086 | break;
|
4087 |
|
4088 | case 5:
|
4089 | originX = x;
|
4090 | originY = y;
|
4091 | [w, h] = [h, w];
|
4092 | y -= h;
|
4093 | rotateAngle = 90;
|
4094 | break;
|
4095 |
|
4096 | case 6:
|
4097 | originX = x;
|
4098 | originY = y;
|
4099 | [w, h] = [h, w];
|
4100 | h = -h;
|
4101 | rotateAngle = 90;
|
4102 | break;
|
4103 |
|
4104 | case 7:
|
4105 | originX = x;
|
4106 | originY = y;
|
4107 | [w, h] = [h, w];
|
4108 | h = -h;
|
4109 | w = -w;
|
4110 | x -= w;
|
4111 | rotateAngle = 90;
|
4112 | break;
|
4113 |
|
4114 | case 8:
|
4115 | originX = x;
|
4116 | originY = y;
|
4117 | [w, h] = [h, w];
|
4118 | h = -h;
|
4119 | x -= w;
|
4120 | y -= h;
|
4121 | rotateAngle = -90;
|
4122 | break;
|
4123 | }
|
4124 | } else {
|
4125 | h = -h;
|
4126 | y -= h;
|
4127 | rotateAngle = 0;
|
4128 | }
|
4129 |
|
4130 |
|
4131 | if (options.link != null) {
|
4132 | this.link(x, y, w, h, options.link);
|
4133 | }
|
4134 | if (options.goTo != null) {
|
4135 | this.goTo(x, y, w, h, options.goTo);
|
4136 | }
|
4137 | if (options.destination != null) {
|
4138 | this.addNamedDestination(options.destination, 'XYZ', x, y, null);
|
4139 | }
|
4140 |
|
4141 |
|
4142 | if (this.y === y) {
|
4143 | this.y += h;
|
4144 | }
|
4145 | this.save();
|
4146 | if (rotateAngle) {
|
4147 | this.rotate(rotateAngle, {
|
4148 | origin: [originX, originY]
|
4149 | });
|
4150 | }
|
4151 | this.transform(w, 0, 0, h, x, y);
|
4152 | this.addContent(`/${image.label} Do`);
|
4153 | this.restore();
|
4154 | return this;
|
4155 | },
|
4156 | openImage(src) {
|
4157 | let image;
|
4158 | if (typeof src === 'string') {
|
4159 | image = this._imageRegistry[src];
|
4160 | }
|
4161 | if (!image) {
|
4162 | image = PDFImage.open(src, `I${++this._imageCount}`);
|
4163 | if (typeof src === 'string') {
|
4164 | this._imageRegistry[src] = image;
|
4165 | }
|
4166 | }
|
4167 | return image;
|
4168 | }
|
4169 | };
|
4170 |
|
4171 | var AnnotationsMixin = {
|
4172 | annotate(x, y, w, h, options) {
|
4173 | options.Type = 'Annot';
|
4174 | options.Rect = this._convertRect(x, y, w, h);
|
4175 | options.Border = [0, 0, 0];
|
4176 | if (options.Subtype === 'Link' && typeof options.F === 'undefined') {
|
4177 | options.F = 1 << 2;
|
4178 | }
|
4179 | if (options.Subtype !== 'Link') {
|
4180 | if (options.C == null) {
|
4181 | options.C = this._normalizeColor(options.color || [0, 0, 0]);
|
4182 | }
|
4183 | }
|
4184 | delete options.color;
|
4185 | if (typeof options.Dest === 'string') {
|
4186 | options.Dest = new String(options.Dest);
|
4187 | }
|
4188 |
|
4189 |
|
4190 | for (let key in options) {
|
4191 | const val = options[key];
|
4192 | options[key[0].toUpperCase() + key.slice(1)] = val;
|
4193 | }
|
4194 | const ref = this.ref(options);
|
4195 | this.page.annotations.push(ref);
|
4196 | ref.end();
|
4197 | return this;
|
4198 | },
|
4199 | note(x, y, w, h, contents, options = {}) {
|
4200 | options.Subtype = 'Text';
|
4201 | options.Contents = new String(contents);
|
4202 | options.Name = 'Comment';
|
4203 | if (options.color == null) {
|
4204 | options.color = [243, 223, 92];
|
4205 | }
|
4206 | return this.annotate(x, y, w, h, options);
|
4207 | },
|
4208 | goTo(x, y, w, h, name, options = {}) {
|
4209 | options.Subtype = 'Link';
|
4210 | options.A = this.ref({
|
4211 | S: 'GoTo',
|
4212 | D: new String(name)
|
4213 | });
|
4214 | options.A.end();
|
4215 | return this.annotate(x, y, w, h, options);
|
4216 | },
|
4217 | link(x, y, w, h, url, options = {}) {
|
4218 | options.Subtype = 'Link';
|
4219 | if (typeof url === 'number') {
|
4220 |
|
4221 | const pages = this._root.data.Pages.data;
|
4222 | if (url >= 0 && url < pages.Kids.length) {
|
4223 | options.A = this.ref({
|
4224 | S: 'GoTo',
|
4225 | D: [pages.Kids[url], 'XYZ', null, null, null]
|
4226 | });
|
4227 | options.A.end();
|
4228 | } else {
|
4229 | throw new Error(`The document has no page ${url}`);
|
4230 | }
|
4231 | } else {
|
4232 |
|
4233 | options.A = this.ref({
|
4234 | S: 'URI',
|
4235 | URI: new String(url)
|
4236 | });
|
4237 | options.A.end();
|
4238 | }
|
4239 | return this.annotate(x, y, w, h, options);
|
4240 | },
|
4241 | _markup(x, y, w, h, options = {}) {
|
4242 | const [x1, y1, x2, y2] = this._convertRect(x, y, w, h);
|
4243 | options.QuadPoints = [x1, y2, x2, y2, x1, y1, x2, y1];
|
4244 | options.Contents = new String();
|
4245 | return this.annotate(x, y, w, h, options);
|
4246 | },
|
4247 | highlight(x, y, w, h, options = {}) {
|
4248 | options.Subtype = 'Highlight';
|
4249 | if (options.color == null) {
|
4250 | options.color = [241, 238, 148];
|
4251 | }
|
4252 | return this._markup(x, y, w, h, options);
|
4253 | },
|
4254 | underline(x, y, w, h, options = {}) {
|
4255 | options.Subtype = 'Underline';
|
4256 | return this._markup(x, y, w, h, options);
|
4257 | },
|
4258 | strike(x, y, w, h, options = {}) {
|
4259 | options.Subtype = 'StrikeOut';
|
4260 | return this._markup(x, y, w, h, options);
|
4261 | },
|
4262 | lineAnnotation(x1, y1, x2, y2, options = {}) {
|
4263 | options.Subtype = 'Line';
|
4264 | options.Contents = new String();
|
4265 | options.L = [x1, this.page.height - y1, x2, this.page.height - y2];
|
4266 | return this.annotate(x1, y1, x2, y2, options);
|
4267 | },
|
4268 | rectAnnotation(x, y, w, h, options = {}) {
|
4269 | options.Subtype = 'Square';
|
4270 | options.Contents = new String();
|
4271 | return this.annotate(x, y, w, h, options);
|
4272 | },
|
4273 | ellipseAnnotation(x, y, w, h, options = {}) {
|
4274 | options.Subtype = 'Circle';
|
4275 | options.Contents = new String();
|
4276 | return this.annotate(x, y, w, h, options);
|
4277 | },
|
4278 | textAnnotation(x, y, w, h, text, options = {}) {
|
4279 | options.Subtype = 'FreeText';
|
4280 | options.Contents = new String(text);
|
4281 | options.DA = new String();
|
4282 | return this.annotate(x, y, w, h, options);
|
4283 | },
|
4284 | fileAnnotation(x, y, w, h, file = {}, options = {}) {
|
4285 |
|
4286 | const filespec = this.file(file.src, Object.assign({
|
4287 | hidden: true
|
4288 | }, file));
|
4289 | options.Subtype = 'FileAttachment';
|
4290 | options.FS = filespec;
|
4291 |
|
4292 |
|
4293 | if (options.Contents) {
|
4294 | options.Contents = new String(options.Contents);
|
4295 | } else if (filespec.data.Desc) {
|
4296 | options.Contents = filespec.data.Desc;
|
4297 | }
|
4298 | return this.annotate(x, y, w, h, options);
|
4299 | },
|
4300 | _convertRect(x1, y1, w, h) {
|
4301 |
|
4302 | let y2 = y1;
|
4303 | y1 += h;
|
4304 |
|
4305 |
|
4306 | let x2 = x1 + w;
|
4307 |
|
4308 |
|
4309 | const [m0, m1, m2, m3, m4, m5] = this._ctm;
|
4310 | x1 = m0 * x1 + m2 * y1 + m4;
|
4311 | y1 = m1 * x1 + m3 * y1 + m5;
|
4312 | x2 = m0 * x2 + m2 * y2 + m4;
|
4313 | y2 = m1 * x2 + m3 * y2 + m5;
|
4314 | return [x1, y1, x2, y2];
|
4315 | }
|
4316 | };
|
4317 |
|
4318 | class PDFOutline {
|
4319 | constructor(document, parent, title, dest, options = {
|
4320 | expanded: false
|
4321 | }) {
|
4322 | this.document = document;
|
4323 | this.options = options;
|
4324 | this.outlineData = {};
|
4325 | if (dest !== null) {
|
4326 | this.outlineData['Dest'] = [dest.dictionary, 'Fit'];
|
4327 | }
|
4328 | if (parent !== null) {
|
4329 | this.outlineData['Parent'] = parent;
|
4330 | }
|
4331 | if (title !== null) {
|
4332 | this.outlineData['Title'] = new String(title);
|
4333 | }
|
4334 | this.dictionary = this.document.ref(this.outlineData);
|
4335 | this.children = [];
|
4336 | }
|
4337 | addItem(title, options = {
|
4338 | expanded: false
|
4339 | }) {
|
4340 | const result = new PDFOutline(this.document, this.dictionary, title, this.document.page, options);
|
4341 | this.children.push(result);
|
4342 | return result;
|
4343 | }
|
4344 | endOutline() {
|
4345 | if (this.children.length > 0) {
|
4346 | if (this.options.expanded) {
|
4347 | this.outlineData.Count = this.children.length;
|
4348 | }
|
4349 | const first = this.children[0],
|
4350 | last = this.children[this.children.length - 1];
|
4351 | this.outlineData.First = first.dictionary;
|
4352 | this.outlineData.Last = last.dictionary;
|
4353 | for (let i = 0, len = this.children.length; i < len; i++) {
|
4354 | const child = this.children[i];
|
4355 | if (i > 0) {
|
4356 | child.outlineData.Prev = this.children[i - 1].dictionary;
|
4357 | }
|
4358 | if (i < this.children.length - 1) {
|
4359 | child.outlineData.Next = this.children[i + 1].dictionary;
|
4360 | }
|
4361 | child.endOutline();
|
4362 | }
|
4363 | }
|
4364 | return this.dictionary.end();
|
4365 | }
|
4366 | }
|
4367 |
|
4368 | var OutlineMixin = {
|
4369 | initOutline() {
|
4370 | return this.outline = new PDFOutline(this, null, null, null);
|
4371 | },
|
4372 | endOutline() {
|
4373 | this.outline.endOutline();
|
4374 | if (this.outline.children.length > 0) {
|
4375 | this._root.data.Outlines = this.outline.dictionary;
|
4376 | return this._root.data.PageMode = 'UseOutlines';
|
4377 | }
|
4378 | }
|
4379 | };
|
4380 |
|
4381 |
|
4382 |
|
4383 |
|
4384 |
|
4385 |
|
4386 | class PDFStructureContent {
|
4387 | constructor(pageRef, mcid) {
|
4388 | this.refs = [{
|
4389 | pageRef,
|
4390 | mcid
|
4391 | }];
|
4392 | }
|
4393 | push(structContent) {
|
4394 | structContent.refs.forEach(ref => this.refs.push(ref));
|
4395 | }
|
4396 | }
|
4397 |
|
4398 |
|
4399 |
|
4400 |
|
4401 |
|
4402 | class PDFStructureElement {
|
4403 | constructor(document, type, options = {}, children = null) {
|
4404 | this.document = document;
|
4405 | this._attached = false;
|
4406 | this._ended = false;
|
4407 | this._flushed = false;
|
4408 | this.dictionary = document.ref({
|
4409 |
|
4410 | S: type
|
4411 | });
|
4412 | const data = this.dictionary.data;
|
4413 | if (Array.isArray(options) || this._isValidChild(options)) {
|
4414 | children = options;
|
4415 | options = {};
|
4416 | }
|
4417 | if (typeof options.title !== 'undefined') {
|
4418 | data.T = new String(options.title);
|
4419 | }
|
4420 | if (typeof options.lang !== 'undefined') {
|
4421 | data.Lang = new String(options.lang);
|
4422 | }
|
4423 | if (typeof options.alt !== 'undefined') {
|
4424 | data.Alt = new String(options.alt);
|
4425 | }
|
4426 | if (typeof options.expanded !== 'undefined') {
|
4427 | data.E = new String(options.expanded);
|
4428 | }
|
4429 | if (typeof options.actual !== 'undefined') {
|
4430 | data.ActualText = new String(options.actual);
|
4431 | }
|
4432 | this._children = [];
|
4433 | if (children) {
|
4434 | if (!Array.isArray(children)) {
|
4435 | children = [children];
|
4436 | }
|
4437 | children.forEach(child => this.add(child));
|
4438 | this.end();
|
4439 | }
|
4440 | }
|
4441 | add(child) {
|
4442 | if (this._ended) {
|
4443 | throw new Error(`Cannot add child to already-ended structure element`);
|
4444 | }
|
4445 | if (!this._isValidChild(child)) {
|
4446 | throw new Error(`Invalid structure element child`);
|
4447 | }
|
4448 | if (child instanceof PDFStructureElement) {
|
4449 | child.setParent(this.dictionary);
|
4450 | if (this._attached) {
|
4451 | child.setAttached();
|
4452 | }
|
4453 | }
|
4454 | if (child instanceof PDFStructureContent) {
|
4455 | this._addContentToParentTree(child);
|
4456 | }
|
4457 | if (typeof child === 'function' && this._attached) {
|
4458 |
|
4459 | child = this._contentForClosure(child);
|
4460 | }
|
4461 | this._children.push(child);
|
4462 | return this;
|
4463 | }
|
4464 | _addContentToParentTree(content) {
|
4465 | content.refs.forEach(({
|
4466 | pageRef,
|
4467 | mcid
|
4468 | }) => {
|
4469 | const pageStructParents = this.document.getStructParentTree().get(pageRef.data.StructParents);
|
4470 | pageStructParents[mcid] = this.dictionary;
|
4471 | });
|
4472 | }
|
4473 | setParent(parentRef) {
|
4474 | if (this.dictionary.data.P) {
|
4475 | throw new Error(`Structure element added to more than one parent`);
|
4476 | }
|
4477 | this.dictionary.data.P = parentRef;
|
4478 | this._flush();
|
4479 | }
|
4480 | setAttached() {
|
4481 | if (this._attached) {
|
4482 | return;
|
4483 | }
|
4484 | this._children.forEach((child, index) => {
|
4485 | if (child instanceof PDFStructureElement) {
|
4486 | child.setAttached();
|
4487 | }
|
4488 | if (typeof child === 'function') {
|
4489 | this._children[index] = this._contentForClosure(child);
|
4490 | }
|
4491 | });
|
4492 | this._attached = true;
|
4493 | this._flush();
|
4494 | }
|
4495 | end() {
|
4496 | if (this._ended) {
|
4497 | return;
|
4498 | }
|
4499 | this._children.filter(child => child instanceof PDFStructureElement).forEach(child => child.end());
|
4500 | this._ended = true;
|
4501 | this._flush();
|
4502 | }
|
4503 | _isValidChild(child) {
|
4504 | return child instanceof PDFStructureElement || child instanceof PDFStructureContent || typeof child === 'function';
|
4505 | }
|
4506 | _contentForClosure(closure) {
|
4507 | const content = this.document.markStructureContent(this.dictionary.data.S);
|
4508 | closure();
|
4509 | this.document.endMarkedContent();
|
4510 | this._addContentToParentTree(content);
|
4511 | return content;
|
4512 | }
|
4513 | _isFlushable() {
|
4514 | if (!this.dictionary.data.P || !this._ended) {
|
4515 | return false;
|
4516 | }
|
4517 | return this._children.every(child => {
|
4518 | if (typeof child === 'function') {
|
4519 | return false;
|
4520 | }
|
4521 | if (child instanceof PDFStructureElement) {
|
4522 | return child._isFlushable();
|
4523 | }
|
4524 | return true;
|
4525 | });
|
4526 | }
|
4527 | _flush() {
|
4528 | if (this._flushed || !this._isFlushable()) {
|
4529 | return;
|
4530 | }
|
4531 | this.dictionary.data.K = [];
|
4532 | this._children.forEach(child => this._flushChild(child));
|
4533 | this.dictionary.end();
|
4534 |
|
4535 |
|
4536 |
|
4537 |
|
4538 | this._children = [];
|
4539 | this.dictionary.data.K = null;
|
4540 | this._flushed = true;
|
4541 | }
|
4542 | _flushChild(child) {
|
4543 | if (child instanceof PDFStructureElement) {
|
4544 | this.dictionary.data.K.push(child.dictionary);
|
4545 | }
|
4546 | if (child instanceof PDFStructureContent) {
|
4547 | child.refs.forEach(({
|
4548 | pageRef,
|
4549 | mcid
|
4550 | }) => {
|
4551 | if (!this.dictionary.data.Pg) {
|
4552 | this.dictionary.data.Pg = pageRef;
|
4553 | }
|
4554 | if (this.dictionary.data.Pg === pageRef) {
|
4555 | this.dictionary.data.K.push(mcid);
|
4556 | } else {
|
4557 | this.dictionary.data.K.push({
|
4558 | Type: "MCR",
|
4559 | Pg: pageRef,
|
4560 | MCID: mcid
|
4561 | });
|
4562 | }
|
4563 | });
|
4564 | }
|
4565 | }
|
4566 | }
|
4567 |
|
4568 |
|
4569 |
|
4570 |
|
4571 | class PDFNumberTree extends PDFTree {
|
4572 | _compareKeys(a, b) {
|
4573 | return parseInt(a) - parseInt(b);
|
4574 | }
|
4575 | _keysName() {
|
4576 | return "Nums";
|
4577 | }
|
4578 | _dataForKey(k) {
|
4579 | return parseInt(k);
|
4580 | }
|
4581 | }
|
4582 |
|
4583 |
|
4584 |
|
4585 |
|
4586 |
|
4587 | var MarkingsMixin = {
|
4588 | initMarkings(options) {
|
4589 | this.structChildren = [];
|
4590 | if (options.tagged) {
|
4591 | this.getMarkInfoDictionary().data.Marked = true;
|
4592 | this.getStructTreeRoot();
|
4593 | }
|
4594 | },
|
4595 | markContent(tag, options = null) {
|
4596 | if (tag === 'Artifact' || options && options.mcid) {
|
4597 | let toClose = 0;
|
4598 | this.page.markings.forEach(marking => {
|
4599 | if (toClose || marking.structContent || marking.tag === 'Artifact') {
|
4600 | toClose++;
|
4601 | }
|
4602 | });
|
4603 | while (toClose--) {
|
4604 | this.endMarkedContent();
|
4605 | }
|
4606 | }
|
4607 | if (!options) {
|
4608 | this.page.markings.push({
|
4609 | tag
|
4610 | });
|
4611 | this.addContent(`/${tag} BMC`);
|
4612 | return this;
|
4613 | }
|
4614 | this.page.markings.push({
|
4615 | tag,
|
4616 | options
|
4617 | });
|
4618 | const dictionary = {};
|
4619 | if (typeof options.mcid !== 'undefined') {
|
4620 | dictionary.MCID = options.mcid;
|
4621 | }
|
4622 | if (tag === 'Artifact') {
|
4623 | if (typeof options.type === 'string') {
|
4624 | dictionary.Type = options.type;
|
4625 | }
|
4626 | if (Array.isArray(options.bbox)) {
|
4627 | dictionary.BBox = [options.bbox[0], this.page.height - options.bbox[3], options.bbox[2], this.page.height - options.bbox[1]];
|
4628 | }
|
4629 | if (Array.isArray(options.attached) && options.attached.every(val => typeof val === 'string')) {
|
4630 | dictionary.Attached = options.attached;
|
4631 | }
|
4632 | }
|
4633 | if (tag === 'Span') {
|
4634 | if (options.lang) {
|
4635 | dictionary.Lang = new String(options.lang);
|
4636 | }
|
4637 | if (options.alt) {
|
4638 | dictionary.Alt = new String(options.alt);
|
4639 | }
|
4640 | if (options.expanded) {
|
4641 | dictionary.E = new String(options.expanded);
|
4642 | }
|
4643 | if (options.actual) {
|
4644 | dictionary.ActualText = new String(options.actual);
|
4645 | }
|
4646 | }
|
4647 | this.addContent(`/${tag} ${PDFObject.convert(dictionary)} BDC`);
|
4648 | return this;
|
4649 | },
|
4650 | markStructureContent(tag, options = {}) {
|
4651 | const pageStructParents = this.getStructParentTree().get(this.page.structParentTreeKey);
|
4652 | const mcid = pageStructParents.length;
|
4653 | pageStructParents.push(null);
|
4654 | this.markContent(tag, {
|
4655 | ...options,
|
4656 | mcid
|
4657 | });
|
4658 | const structContent = new PDFStructureContent(this.page.dictionary, mcid);
|
4659 | this.page.markings.slice(-1)[0].structContent = structContent;
|
4660 | return structContent;
|
4661 | },
|
4662 | endMarkedContent() {
|
4663 | this.page.markings.pop();
|
4664 | this.addContent('EMC');
|
4665 | return this;
|
4666 | },
|
4667 | struct(type, options = {}, children = null) {
|
4668 | return new PDFStructureElement(this, type, options, children);
|
4669 | },
|
4670 | addStructure(structElem) {
|
4671 | const structTreeRoot = this.getStructTreeRoot();
|
4672 | structElem.setParent(structTreeRoot);
|
4673 | structElem.setAttached();
|
4674 | this.structChildren.push(structElem);
|
4675 | if (!structTreeRoot.data.K) {
|
4676 | structTreeRoot.data.K = [];
|
4677 | }
|
4678 | structTreeRoot.data.K.push(structElem.dictionary);
|
4679 | return this;
|
4680 | },
|
4681 | initPageMarkings(pageMarkings) {
|
4682 | pageMarkings.forEach(marking => {
|
4683 | if (marking.structContent) {
|
4684 | const structContent = marking.structContent;
|
4685 | const newStructContent = this.markStructureContent(marking.tag, marking.options);
|
4686 | structContent.push(newStructContent);
|
4687 | this.page.markings.slice(-1)[0].structContent = structContent;
|
4688 | } else {
|
4689 | this.markContent(marking.tag, marking.options);
|
4690 | }
|
4691 | });
|
4692 | },
|
4693 | endPageMarkings(page) {
|
4694 | const pageMarkings = page.markings;
|
4695 | pageMarkings.forEach(() => page.write('EMC'));
|
4696 | page.markings = [];
|
4697 | return pageMarkings;
|
4698 | },
|
4699 | getMarkInfoDictionary() {
|
4700 | if (!this._root.data.MarkInfo) {
|
4701 | this._root.data.MarkInfo = this.ref({});
|
4702 | }
|
4703 | return this._root.data.MarkInfo;
|
4704 | },
|
4705 | getStructTreeRoot() {
|
4706 | if (!this._root.data.StructTreeRoot) {
|
4707 | this._root.data.StructTreeRoot = this.ref({
|
4708 | Type: 'StructTreeRoot',
|
4709 | ParentTree: new PDFNumberTree(),
|
4710 | ParentTreeNextKey: 0
|
4711 | });
|
4712 | }
|
4713 | return this._root.data.StructTreeRoot;
|
4714 | },
|
4715 | getStructParentTree() {
|
4716 | return this.getStructTreeRoot().data.ParentTree;
|
4717 | },
|
4718 | createStructParentTreeNextKey() {
|
4719 |
|
4720 | this.getMarkInfoDictionary();
|
4721 | const structTreeRoot = this.getStructTreeRoot();
|
4722 | const key = structTreeRoot.data.ParentTreeNextKey++;
|
4723 | structTreeRoot.data.ParentTree.add(key, []);
|
4724 | return key;
|
4725 | },
|
4726 | endMarkings() {
|
4727 | const structTreeRoot = this._root.data.StructTreeRoot;
|
4728 | if (structTreeRoot) {
|
4729 | structTreeRoot.end();
|
4730 | this.structChildren.forEach(structElem => structElem.end());
|
4731 | }
|
4732 | if (this._root.data.MarkInfo) {
|
4733 | this._root.data.MarkInfo.end();
|
4734 | }
|
4735 | }
|
4736 | };
|
4737 |
|
4738 | const FIELD_FLAGS = {
|
4739 | readOnly: 1,
|
4740 | required: 2,
|
4741 | noExport: 4,
|
4742 | multiline: 0x1000,
|
4743 | password: 0x2000,
|
4744 | toggleToOffButton: 0x4000,
|
4745 | radioButton: 0x8000,
|
4746 | pushButton: 0x10000,
|
4747 | combo: 0x20000,
|
4748 | edit: 0x40000,
|
4749 | sort: 0x80000,
|
4750 | multiSelect: 0x200000,
|
4751 | noSpell: 0x400000
|
4752 | };
|
4753 | const FIELD_JUSTIFY = {
|
4754 | left: 0,
|
4755 | center: 1,
|
4756 | right: 2
|
4757 | };
|
4758 | const VALUE_MAP = {
|
4759 | value: 'V',
|
4760 | defaultValue: 'DV'
|
4761 | };
|
4762 | const FORMAT_SPECIAL = {
|
4763 | zip: '0',
|
4764 | zipPlus4: '1',
|
4765 | zip4: '1',
|
4766 | phone: '2',
|
4767 | ssn: '3'
|
4768 | };
|
4769 | const FORMAT_DEFAULT = {
|
4770 | number: {
|
4771 | nDec: 0,
|
4772 | sepComma: false,
|
4773 | negStyle: 'MinusBlack',
|
4774 | currency: '',
|
4775 | currencyPrepend: true
|
4776 | },
|
4777 | percent: {
|
4778 | nDec: 0,
|
4779 | sepComma: false
|
4780 | }
|
4781 | };
|
4782 | var AcroFormMixin = {
|
4783 | |
4784 |
|
4785 |
|
4786 |
|
4787 | initForm() {
|
4788 | if (!this._font) {
|
4789 | throw new Error('Must set a font before calling initForm method');
|
4790 | }
|
4791 | this._acroform = {
|
4792 | fonts: {},
|
4793 | defaultFont: this._font.name
|
4794 | };
|
4795 | this._acroform.fonts[this._font.id] = this._font.ref();
|
4796 | let data = {
|
4797 | Fields: [],
|
4798 | NeedAppearances: true,
|
4799 | DA: new String(`/${this._font.id} 0 Tf 0 g`),
|
4800 | DR: {
|
4801 | Font: {}
|
4802 | }
|
4803 | };
|
4804 | data.DR.Font[this._font.id] = this._font.ref();
|
4805 | const AcroForm = this.ref(data);
|
4806 | this._root.data.AcroForm = AcroForm;
|
4807 | return this;
|
4808 | },
|
4809 | |
4810 |
|
4811 |
|
4812 | endAcroForm() {
|
4813 | if (this._root.data.AcroForm) {
|
4814 | if (!Object.keys(this._acroform.fonts).length && !this._acroform.defaultFont) {
|
4815 | throw new Error('No fonts specified for PDF form');
|
4816 | }
|
4817 | let fontDict = this._root.data.AcroForm.data.DR.Font;
|
4818 | Object.keys(this._acroform.fonts).forEach(name => {
|
4819 | fontDict[name] = this._acroform.fonts[name];
|
4820 | });
|
4821 | this._root.data.AcroForm.data.Fields.forEach(fieldRef => {
|
4822 | this._endChild(fieldRef);
|
4823 | });
|
4824 | this._root.data.AcroForm.end();
|
4825 | }
|
4826 | return this;
|
4827 | },
|
4828 | _endChild(ref) {
|
4829 | if (Array.isArray(ref.data.Kids)) {
|
4830 | ref.data.Kids.forEach(childRef => {
|
4831 | this._endChild(childRef);
|
4832 | });
|
4833 | ref.end();
|
4834 | }
|
4835 | return this;
|
4836 | },
|
4837 | |
4838 |
|
4839 |
|
4840 |
|
4841 |
|
4842 |
|
4843 |
|
4844 | formField(name, options = {}) {
|
4845 | let fieldDict = this._fieldDict(name, null, options);
|
4846 | let fieldRef = this.ref(fieldDict);
|
4847 | this._addToParent(fieldRef);
|
4848 | return fieldRef;
|
4849 | },
|
4850 | |
4851 |
|
4852 |
|
4853 |
|
4854 |
|
4855 |
|
4856 |
|
4857 |
|
4858 |
|
4859 |
|
4860 |
|
4861 | formAnnotation(name, type, x, y, w, h, options = {}) {
|
4862 | let fieldDict = this._fieldDict(name, type, options);
|
4863 | fieldDict.Subtype = 'Widget';
|
4864 | if (fieldDict.F === undefined) {
|
4865 | fieldDict.F = 4;
|
4866 | }
|
4867 |
|
4868 |
|
4869 | this.annotate(x, y, w, h, fieldDict);
|
4870 | let annotRef = this.page.annotations[this.page.annotations.length - 1];
|
4871 | return this._addToParent(annotRef);
|
4872 | },
|
4873 | formText(name, x, y, w, h, options = {}) {
|
4874 | return this.formAnnotation(name, 'text', x, y, w, h, options);
|
4875 | },
|
4876 | formPushButton(name, x, y, w, h, options = {}) {
|
4877 | return this.formAnnotation(name, 'pushButton', x, y, w, h, options);
|
4878 | },
|
4879 | formCombo(name, x, y, w, h, options = {}) {
|
4880 | return this.formAnnotation(name, 'combo', x, y, w, h, options);
|
4881 | },
|
4882 | formList(name, x, y, w, h, options = {}) {
|
4883 | return this.formAnnotation(name, 'list', x, y, w, h, options);
|
4884 | },
|
4885 | formRadioButton(name, x, y, w, h, options = {}) {
|
4886 | return this.formAnnotation(name, 'radioButton', x, y, w, h, options);
|
4887 | },
|
4888 | formCheckbox(name, x, y, w, h, options = {}) {
|
4889 | return this.formAnnotation(name, 'checkbox', x, y, w, h, options);
|
4890 | },
|
4891 | _addToParent(fieldRef) {
|
4892 | let parent = fieldRef.data.Parent;
|
4893 | if (parent) {
|
4894 | if (!parent.data.Kids) {
|
4895 | parent.data.Kids = [];
|
4896 | }
|
4897 | parent.data.Kids.push(fieldRef);
|
4898 | } else {
|
4899 | this._root.data.AcroForm.data.Fields.push(fieldRef);
|
4900 | }
|
4901 | return this;
|
4902 | },
|
4903 | _fieldDict(name, type, options = {}) {
|
4904 | if (!this._acroform) {
|
4905 | throw new Error('Call document.initForms() method before adding form elements to document');
|
4906 | }
|
4907 | let opts = Object.assign({}, options);
|
4908 | if (type !== null) {
|
4909 | opts = this._resolveType(type, options);
|
4910 | }
|
4911 | opts = this._resolveFlags(opts);
|
4912 | opts = this._resolveJustify(opts);
|
4913 | opts = this._resolveFont(opts);
|
4914 | opts = this._resolveStrings(opts);
|
4915 | opts = this._resolveColors(opts);
|
4916 | opts = this._resolveFormat(opts);
|
4917 | opts.T = new String(name);
|
4918 | if (opts.parent) {
|
4919 | opts.Parent = opts.parent;
|
4920 | delete opts.parent;
|
4921 | }
|
4922 | return opts;
|
4923 | },
|
4924 | _resolveType(type, opts) {
|
4925 | if (type === 'text') {
|
4926 | opts.FT = 'Tx';
|
4927 | } else if (type === 'pushButton') {
|
4928 | opts.FT = 'Btn';
|
4929 | opts.pushButton = true;
|
4930 | } else if (type === 'radioButton') {
|
4931 | opts.FT = 'Btn';
|
4932 | opts.radioButton = true;
|
4933 | } else if (type === 'checkbox') {
|
4934 | opts.FT = 'Btn';
|
4935 | } else if (type === 'combo') {
|
4936 | opts.FT = 'Ch';
|
4937 | opts.combo = true;
|
4938 | } else if (type === 'list') {
|
4939 | opts.FT = 'Ch';
|
4940 | } else {
|
4941 | throw new Error(`Invalid form annotation type '${type}'`);
|
4942 | }
|
4943 | return opts;
|
4944 | },
|
4945 | _resolveFormat(opts) {
|
4946 | const f = opts.format;
|
4947 | if (f && f.type) {
|
4948 | let fnKeystroke;
|
4949 | let fnFormat;
|
4950 | let params = '';
|
4951 | if (FORMAT_SPECIAL[f.type] !== undefined) {
|
4952 | fnKeystroke = `AFSpecial_Keystroke`;
|
4953 | fnFormat = `AFSpecial_Format`;
|
4954 | params = FORMAT_SPECIAL[f.type];
|
4955 | } else {
|
4956 | let format = f.type.charAt(0).toUpperCase() + f.type.slice(1);
|
4957 | fnKeystroke = `AF${format}_Keystroke`;
|
4958 | fnFormat = `AF${format}_Format`;
|
4959 | if (f.type === 'date') {
|
4960 | fnKeystroke += 'Ex';
|
4961 | params = String(f.param);
|
4962 | } else if (f.type === 'time') {
|
4963 | params = String(f.param);
|
4964 | } else if (f.type === 'number') {
|
4965 | let p = Object.assign({}, FORMAT_DEFAULT.number, f);
|
4966 | params = String([String(p.nDec), p.sepComma ? '0' : '1', '"' + p.negStyle + '"', 'null', '"' + p.currency + '"', String(p.currencyPrepend)].join(','));
|
4967 | } else if (f.type === 'percent') {
|
4968 | let p = Object.assign({}, FORMAT_DEFAULT.percent, f);
|
4969 | params = String([String(p.nDec), p.sepComma ? '0' : '1'].join(','));
|
4970 | }
|
4971 | }
|
4972 | opts.AA = opts.AA ? opts.AA : {};
|
4973 | opts.AA.K = {
|
4974 | S: 'JavaScript',
|
4975 | JS: new String(`${fnKeystroke}(${params});`)
|
4976 | };
|
4977 | opts.AA.F = {
|
4978 | S: 'JavaScript',
|
4979 | JS: new String(`${fnFormat}(${params});`)
|
4980 | };
|
4981 | }
|
4982 | delete opts.format;
|
4983 | return opts;
|
4984 | },
|
4985 | _resolveColors(opts) {
|
4986 | let color = this._normalizeColor(opts.backgroundColor);
|
4987 | if (color) {
|
4988 | if (!opts.MK) {
|
4989 | opts.MK = {};
|
4990 | }
|
4991 | opts.MK.BG = color;
|
4992 | }
|
4993 | color = this._normalizeColor(opts.borderColor);
|
4994 | if (color) {
|
4995 | if (!opts.MK) {
|
4996 | opts.MK = {};
|
4997 | }
|
4998 | opts.MK.BC = color;
|
4999 | }
|
5000 | delete opts.backgroundColor;
|
5001 | delete opts.borderColor;
|
5002 | return opts;
|
5003 | },
|
5004 | _resolveFlags(options) {
|
5005 | let result = 0;
|
5006 | Object.keys(options).forEach(key => {
|
5007 | if (FIELD_FLAGS[key]) {
|
5008 | if (options[key]) {
|
5009 | result |= FIELD_FLAGS[key];
|
5010 | }
|
5011 | delete options[key];
|
5012 | }
|
5013 | });
|
5014 | if (result !== 0) {
|
5015 | options.Ff = options.Ff ? options.Ff : 0;
|
5016 | options.Ff |= result;
|
5017 | }
|
5018 | return options;
|
5019 | },
|
5020 | _resolveJustify(options) {
|
5021 | let result = 0;
|
5022 | if (options.align !== undefined) {
|
5023 | if (typeof FIELD_JUSTIFY[options.align] === 'number') {
|
5024 | result = FIELD_JUSTIFY[options.align];
|
5025 | }
|
5026 | delete options.align;
|
5027 | }
|
5028 | if (result !== 0) {
|
5029 | options.Q = result;
|
5030 | }
|
5031 | return options;
|
5032 | },
|
5033 | _resolveFont(options) {
|
5034 |
|
5035 | if (this._acroform.fonts[this._font.id] === null) {
|
5036 | this._acroform.fonts[this._font.id] = this._font.ref();
|
5037 | }
|
5038 |
|
5039 |
|
5040 | if (this._acroform.defaultFont !== this._font.name) {
|
5041 | options.DR = {
|
5042 | Font: {}
|
5043 | };
|
5044 |
|
5045 |
|
5046 | const fontSize = options.fontSize || 0;
|
5047 | options.DR.Font[this._font.id] = this._font.ref();
|
5048 | options.DA = new String(`/${this._font.id} ${fontSize} Tf 0 g`);
|
5049 | }
|
5050 | return options;
|
5051 | },
|
5052 | _resolveStrings(options) {
|
5053 | let select = [];
|
5054 | function appendChoices(a) {
|
5055 | if (Array.isArray(a)) {
|
5056 | for (let idx = 0; idx < a.length; idx++) {
|
5057 | if (typeof a[idx] === 'string') {
|
5058 | select.push(new String(a[idx]));
|
5059 | } else {
|
5060 | select.push(a[idx]);
|
5061 | }
|
5062 | }
|
5063 | }
|
5064 | }
|
5065 | appendChoices(options.Opt);
|
5066 | if (options.select) {
|
5067 | appendChoices(options.select);
|
5068 | delete options.select;
|
5069 | }
|
5070 | if (select.length) {
|
5071 | options.Opt = select;
|
5072 | }
|
5073 | Object.keys(VALUE_MAP).forEach(key => {
|
5074 | if (options[key] !== undefined) {
|
5075 | options[VALUE_MAP[key]] = options[key];
|
5076 | delete options[key];
|
5077 | }
|
5078 | });
|
5079 | ['V', 'DV'].forEach(key => {
|
5080 | if (typeof options[key] === 'string') {
|
5081 | options[key] = new String(options[key]);
|
5082 | }
|
5083 | });
|
5084 | if (options.MK && options.MK.CA) {
|
5085 | options.MK.CA = new String(options.MK.CA);
|
5086 | }
|
5087 | if (options.label) {
|
5088 | options.MK = options.MK ? options.MK : {};
|
5089 | options.MK.CA = new String(options.label);
|
5090 | delete options.label;
|
5091 | }
|
5092 | return options;
|
5093 | }
|
5094 | };
|
5095 |
|
5096 | var AttachmentsMixin = {
|
5097 | |
5098 |
|
5099 |
|
5100 |
|
5101 |
|
5102 |
|
5103 |
|
5104 |
|
5105 |
|
5106 |
|
5107 |
|
5108 |
|
5109 | file(src, options = {}) {
|
5110 | options.name = options.name || src;
|
5111 | const refBody = {
|
5112 | Type: 'EmbeddedFile',
|
5113 | Params: {}
|
5114 | };
|
5115 | let data;
|
5116 | if (!src) {
|
5117 | throw new Error('No src specified');
|
5118 | }
|
5119 | if (Buffer.isBuffer(src)) {
|
5120 | data = src;
|
5121 | } else if (src instanceof ArrayBuffer) {
|
5122 | data = Buffer.from(new Uint8Array(src));
|
5123 | } else {
|
5124 | let match;
|
5125 | if (match = /^data:(.*?);base64,(.*)$/.exec(src)) {
|
5126 | if (match[1]) {
|
5127 | refBody.Subtype = match[1].replace('/', '#2F');
|
5128 | }
|
5129 | data = Buffer.from(match[2], 'base64');
|
5130 | } else {
|
5131 | data = fs.readFileSync(src);
|
5132 | if (!data) {
|
5133 | throw new Error(`Could not read contents of file at filepath ${src}`);
|
5134 | }
|
5135 |
|
5136 |
|
5137 | const {
|
5138 | birthtime,
|
5139 | ctime
|
5140 | } = fs.statSync(src);
|
5141 | refBody.Params.CreationDate = birthtime;
|
5142 | refBody.Params.ModDate = ctime;
|
5143 | }
|
5144 | }
|
5145 |
|
5146 |
|
5147 | if (options.creationDate instanceof Date) {
|
5148 | refBody.Params.CreationDate = options.creationDate;
|
5149 | }
|
5150 | if (options.modifiedDate instanceof Date) {
|
5151 | refBody.Params.ModDate = options.modifiedDate;
|
5152 | }
|
5153 |
|
5154 | if (options.type) {
|
5155 | refBody.Subtype = options.type.replace('/', '#2F');
|
5156 | }
|
5157 |
|
5158 |
|
5159 | const checksum = CryptoJS.MD5(CryptoJS.lib.WordArray.create(new Uint8Array(data)));
|
5160 | refBody.Params.CheckSum = new String(checksum);
|
5161 | refBody.Params.Size = data.byteLength;
|
5162 |
|
5163 |
|
5164 |
|
5165 | let ref;
|
5166 | if (!this._fileRegistry) this._fileRegistry = {};
|
5167 | let file = this._fileRegistry[options.name];
|
5168 | if (file && isEqual(refBody, file)) {
|
5169 | ref = file.ref;
|
5170 | } else {
|
5171 | ref = this.ref(refBody);
|
5172 | ref.end(data);
|
5173 | this._fileRegistry[options.name] = {
|
5174 | ...refBody,
|
5175 | ref
|
5176 | };
|
5177 | }
|
5178 |
|
5179 | const fileSpecBody = {
|
5180 | Type: 'Filespec',
|
5181 | F: new String(options.name),
|
5182 | EF: {
|
5183 | F: ref
|
5184 | },
|
5185 | UF: new String(options.name)
|
5186 | };
|
5187 | if (options.description) {
|
5188 | fileSpecBody.Desc = new String(options.description);
|
5189 | }
|
5190 | const filespec = this.ref(fileSpecBody);
|
5191 | filespec.end();
|
5192 | if (!options.hidden) {
|
5193 | this.addNamedEmbeddedFile(options.name, filespec);
|
5194 | }
|
5195 | return filespec;
|
5196 | }
|
5197 | };
|
5198 |
|
5199 |
|
5200 | function isEqual(a, b) {
|
5201 | return a.Subtype === b.Subtype && a.Params.CheckSum.toString() === b.Params.CheckSum.toString() && a.Params.Size === b.Params.Size && a.Params.CreationDate === b.Params.CreationDate && a.Params.ModDate === b.Params.ModDate;
|
5202 | }
|
5203 |
|
5204 | var PDFA = {
|
5205 | initPDFA(pSubset) {
|
5206 | if (pSubset.charAt(pSubset.length - 3) === '-') {
|
5207 | this.subset_conformance = pSubset.charAt(pSubset.length - 1).toUpperCase();
|
5208 | this.subset = parseInt(pSubset.charAt(pSubset.length - 2));
|
5209 | } else {
|
5210 |
|
5211 | this.subset_conformance = 'B';
|
5212 | this.subset = parseInt(pSubset.charAt(pSubset.length - 1));
|
5213 | }
|
5214 | },
|
5215 | endSubset() {
|
5216 | this._addPdfaMetadata();
|
5217 | this._addColorOutputIntent(`${__dirname}/data/sRGB_IEC61966_2_1.icc`);
|
5218 | },
|
5219 | _addColorOutputIntent(pICCPath) {
|
5220 | const iccProfile = fs.readFileSync(pICCPath);
|
5221 | const colorProfileRef = this.ref({
|
5222 | Length: iccProfile.length,
|
5223 | N: 3
|
5224 | });
|
5225 | colorProfileRef.write(iccProfile);
|
5226 | colorProfileRef.end();
|
5227 | const intentRef = this.ref({
|
5228 | Type: 'OutputIntent',
|
5229 | S: 'GTS_PDFA1',
|
5230 | Info: new String('sRGB IEC61966-2.1'),
|
5231 | OutputConditionIdentifier: new String('sRGB IEC61966-2.1'),
|
5232 | DestOutputProfile: colorProfileRef
|
5233 | });
|
5234 | intentRef.end();
|
5235 | this._root.data.OutputIntents = [intentRef];
|
5236 | },
|
5237 | _getPdfaid() {
|
5238 | return `
|
5239 | <rdf:Description xmlns:pdfaid="http://www.aiim.org/pdfa/ns/id/" rdf:about="">
|
5240 | <pdfaid:part>${this.subset}</pdfaid:part>
|
5241 | <pdfaid:conformance>${this.subset_conformance}</pdfaid:conformance>
|
5242 | </rdf:Description>
|
5243 | `;
|
5244 | },
|
5245 | _addPdfaMetadata() {
|
5246 | this.appendXML(this._getPdfaid());
|
5247 | }
|
5248 | };
|
5249 |
|
5250 | var PDFUA = {
|
5251 | initPDFUA() {
|
5252 | this.subset = 1;
|
5253 | },
|
5254 | endSubset() {
|
5255 | this._addPdfuaMetadata();
|
5256 | },
|
5257 | _addPdfuaMetadata() {
|
5258 | this.appendXML(this._getPdfuaid());
|
5259 | },
|
5260 | _getPdfuaid() {
|
5261 | return `
|
5262 | <rdf:Description xmlns:pdfuaid="http://www.aiim.org/pdfua/ns/id/" rdf:about="">
|
5263 | <pdfuaid:part>${this.subset}</pdfuaid:part>
|
5264 | </rdf:Description>
|
5265 | `;
|
5266 | }
|
5267 | };
|
5268 |
|
5269 | var SubsetMixin = {
|
5270 | _importSubset(subset) {
|
5271 | Object.assign(this, subset);
|
5272 | },
|
5273 | initSubset(options) {
|
5274 | switch (options.subset) {
|
5275 | case 'PDF/A-1':
|
5276 | case 'PDF/A-1a':
|
5277 | case 'PDF/A-1b':
|
5278 | case 'PDF/A-2':
|
5279 | case 'PDF/A-2a':
|
5280 | case 'PDF/A-2b':
|
5281 | case 'PDF/A-3':
|
5282 | case 'PDF/A-3a':
|
5283 | case 'PDF/A-3b':
|
5284 | this._importSubset(PDFA);
|
5285 | this.initPDFA(options.subset);
|
5286 | break;
|
5287 | case 'PDF/UA':
|
5288 | this._importSubset(PDFUA);
|
5289 | this.initPDFUA();
|
5290 | break;
|
5291 | }
|
5292 | }
|
5293 | };
|
5294 |
|
5295 | class PDFMetadata {
|
5296 | constructor() {
|
5297 | this._metadata = `
|
5298 | <?xpacket begin="\ufeff" id="W5M0MpCehiHzreSzNTczkc9d"?>
|
5299 | <x:xmpmeta xmlns:x="adobe:ns:meta/">
|
5300 | <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
|
5301 | `;
|
5302 | }
|
5303 | _closeTags() {
|
5304 | this._metadata = this._metadata.concat(`
|
5305 | </rdf:RDF>
|
5306 | </x:xmpmeta>
|
5307 | <?xpacket end="w"?>
|
5308 | `);
|
5309 | }
|
5310 | append(xml, newline = true) {
|
5311 | this._metadata = this._metadata.concat(xml);
|
5312 | if (newline) this._metadata = this._metadata.concat('\n');
|
5313 | }
|
5314 | getXML() {
|
5315 | return this._metadata;
|
5316 | }
|
5317 | getLength() {
|
5318 | return this._metadata.length;
|
5319 | }
|
5320 | end() {
|
5321 | this._closeTags();
|
5322 | this._metadata = this._metadata.trim();
|
5323 | }
|
5324 | }
|
5325 |
|
5326 | var MetadataMixin = {
|
5327 | initMetadata() {
|
5328 | this.metadata = new PDFMetadata();
|
5329 | },
|
5330 | appendXML(xml, newline = true) {
|
5331 | this.metadata.append(xml, newline);
|
5332 | },
|
5333 | _addInfo() {
|
5334 | this.appendXML(`
|
5335 | <rdf:Description rdf:about="" xmlns:xmp="http://ns.adobe.com/xap/1.0/">
|
5336 | <xmp:CreateDate>${this.info.CreationDate.toISOString().split('.')[0] + "Z"}</xmp:CreateDate>
|
5337 | <xmp:CreatorTool>${this.info.Creator}</xmp:CreatorTool>
|
5338 | </rdf:Description>
|
5339 | `);
|
5340 | if (this.info.Title || this.info.Author || this.info.Subject) {
|
5341 | this.appendXML(`
|
5342 | <rdf:Description rdf:about="" xmlns:dc="http://purl.org/dc/elements/1.1/">
|
5343 | `);
|
5344 | if (this.info.Title) {
|
5345 | this.appendXML(`
|
5346 | <dc:title>
|
5347 | <rdf:Alt>
|
5348 | <rdf:li xml:lang="x-default">${this.info.Title}</rdf:li>
|
5349 | </rdf:Alt>
|
5350 | </dc:title>
|
5351 | `);
|
5352 | }
|
5353 | if (this.info.Author) {
|
5354 | this.appendXML(`
|
5355 | <dc:creator>
|
5356 | <rdf:Seq>
|
5357 | <rdf:li>${this.info.Author}</rdf:li>
|
5358 | </rdf:Seq>
|
5359 | </dc:creator>
|
5360 | `);
|
5361 | }
|
5362 | if (this.info.Subject) {
|
5363 | this.appendXML(`
|
5364 | <dc:description>
|
5365 | <rdf:Alt>
|
5366 | <rdf:li xml:lang="x-default">${this.info.Subject}</rdf:li>
|
5367 | </rdf:Alt>
|
5368 | </dc:description>
|
5369 | `);
|
5370 | }
|
5371 | this.appendXML(`
|
5372 | </rdf:Description>
|
5373 | `);
|
5374 | }
|
5375 | this.appendXML(`
|
5376 | <rdf:Description rdf:about="" xmlns:pdf="http://ns.adobe.com/pdf/1.3/">
|
5377 | <pdf:Producer>${this.info.Creator}</pdf:Producer>`, false);
|
5378 | if (this.info.Keywords) {
|
5379 | this.appendXML(`
|
5380 | <pdf:Keywords>${this.info.Keywords}</pdf:Keywords>`, false);
|
5381 | }
|
5382 | this.appendXML(`
|
5383 | </rdf:Description>
|
5384 | `);
|
5385 | },
|
5386 | endMetadata() {
|
5387 | this._addInfo();
|
5388 | this.metadata.end();
|
5389 |
|
5390 | |
5391 |
|
5392 |
|
5393 |
|
5394 | if (this.version != 1.3) {
|
5395 | this.metadataRef = this.ref({
|
5396 | length: this.metadata.getLength(),
|
5397 | Type: 'Metadata',
|
5398 | Subtype: 'XML'
|
5399 | });
|
5400 | this.metadataRef.compress = false;
|
5401 | this.metadataRef.write(Buffer.from(this.metadata.getXML(), 'utf-8'));
|
5402 | this.metadataRef.end();
|
5403 | this._root.data.Metadata = this.metadataRef;
|
5404 | }
|
5405 | }
|
5406 | };
|
5407 |
|
5408 |
|
5409 |
|
5410 |
|
5411 |
|
5412 | class PDFDocument extends stream.Readable {
|
5413 | constructor(options = {}) {
|
5414 | super(options);
|
5415 | this.options = options;
|
5416 |
|
5417 |
|
5418 | switch (options.pdfVersion) {
|
5419 | case '1.4':
|
5420 | this.version = 1.4;
|
5421 | break;
|
5422 | case '1.5':
|
5423 | this.version = 1.5;
|
5424 | break;
|
5425 | case '1.6':
|
5426 | this.version = 1.6;
|
5427 | break;
|
5428 | case '1.7':
|
5429 | case '1.7ext3':
|
5430 | this.version = 1.7;
|
5431 | break;
|
5432 | default:
|
5433 | this.version = 1.3;
|
5434 | break;
|
5435 | }
|
5436 |
|
5437 |
|
5438 | this.compress = this.options.compress != null ? this.options.compress : true;
|
5439 | this._pageBuffer = [];
|
5440 | this._pageBufferStart = 0;
|
5441 |
|
5442 |
|
5443 | this._offsets = [];
|
5444 | this._waiting = 0;
|
5445 | this._ended = false;
|
5446 | this._offset = 0;
|
5447 | const Pages = this.ref({
|
5448 | Type: 'Pages',
|
5449 | Count: 0,
|
5450 | Kids: []
|
5451 | });
|
5452 | const Names = this.ref({
|
5453 | Dests: new PDFNameTree()
|
5454 | });
|
5455 | this._root = this.ref({
|
5456 | Type: 'Catalog',
|
5457 | Pages,
|
5458 | Names
|
5459 | });
|
5460 | if (this.options.lang) {
|
5461 | this._root.data.Lang = new String(this.options.lang);
|
5462 | }
|
5463 |
|
5464 |
|
5465 | this.page = null;
|
5466 |
|
5467 |
|
5468 | this.initMetadata();
|
5469 | this.initColor();
|
5470 | this.initVector();
|
5471 | this.initFonts(options.font);
|
5472 | this.initText();
|
5473 | this.initImages();
|
5474 | this.initOutline();
|
5475 | this.initMarkings(options);
|
5476 | this.initSubset(options);
|
5477 |
|
5478 |
|
5479 | this.info = {
|
5480 | Producer: 'PDFKit',
|
5481 | Creator: 'PDFKit',
|
5482 | CreationDate: new Date()
|
5483 | };
|
5484 | if (this.options.info) {
|
5485 | for (let key in this.options.info) {
|
5486 | const val = this.options.info[key];
|
5487 | this.info[key] = val;
|
5488 | }
|
5489 | }
|
5490 | if (this.options.displayTitle) {
|
5491 | this._root.data.ViewerPreferences = this.ref({
|
5492 | DisplayDocTitle: true
|
5493 | });
|
5494 | }
|
5495 |
|
5496 |
|
5497 | this._id = PDFSecurity.generateFileID(this.info);
|
5498 |
|
5499 |
|
5500 | this._security = PDFSecurity.create(this, options);
|
5501 |
|
5502 |
|
5503 |
|
5504 | this._write(`%PDF-${this.version}`);
|
5505 |
|
5506 |
|
5507 | this._write('%\xFF\xFF\xFF\xFF');
|
5508 |
|
5509 |
|
5510 | if (this.options.autoFirstPage !== false) {
|
5511 | this.addPage();
|
5512 | }
|
5513 | }
|
5514 | addPage(options) {
|
5515 | if (options == null) {
|
5516 | ({
|
5517 | options
|
5518 | } = this);
|
5519 | }
|
5520 |
|
5521 |
|
5522 | if (!this.options.bufferPages) {
|
5523 | this.flushPages();
|
5524 | }
|
5525 |
|
5526 |
|
5527 | this.page = new PDFPage(this, options);
|
5528 | this._pageBuffer.push(this.page);
|
5529 |
|
5530 |
|
5531 | const pages = this._root.data.Pages.data;
|
5532 | pages.Kids.push(this.page.dictionary);
|
5533 | pages.Count++;
|
5534 |
|
5535 |
|
5536 | this.x = this.page.margins.left;
|
5537 | this.y = this.page.margins.top;
|
5538 |
|
5539 |
|
5540 |
|
5541 | this._ctm = [1, 0, 0, 1, 0, 0];
|
5542 | this.transform(1, 0, 0, -1, 0, this.page.height);
|
5543 | this.emit('pageAdded');
|
5544 | return this;
|
5545 | }
|
5546 | continueOnNewPage(options) {
|
5547 | const pageMarkings = this.endPageMarkings(this.page);
|
5548 | this.addPage(options);
|
5549 | this.initPageMarkings(pageMarkings);
|
5550 | return this;
|
5551 | }
|
5552 | bufferedPageRange() {
|
5553 | return {
|
5554 | start: this._pageBufferStart,
|
5555 | count: this._pageBuffer.length
|
5556 | };
|
5557 | }
|
5558 | switchToPage(n) {
|
5559 | let page;
|
5560 | if (!(page = this._pageBuffer[n - this._pageBufferStart])) {
|
5561 | throw new Error(`switchToPage(${n}) out of bounds, current buffer covers pages ${this._pageBufferStart} to ${this._pageBufferStart + this._pageBuffer.length - 1}`);
|
5562 | }
|
5563 | return this.page = page;
|
5564 | }
|
5565 | flushPages() {
|
5566 |
|
5567 |
|
5568 | const pages = this._pageBuffer;
|
5569 | this._pageBuffer = [];
|
5570 | this._pageBufferStart += pages.length;
|
5571 | for (let page of pages) {
|
5572 | this.endPageMarkings(page);
|
5573 | page.end();
|
5574 | }
|
5575 | }
|
5576 | addNamedDestination(name, ...args) {
|
5577 | if (args.length === 0) {
|
5578 | args = ['XYZ', null, null, null];
|
5579 | }
|
5580 | if (args[0] === 'XYZ' && args[2] !== null) {
|
5581 | args[2] = this.page.height - args[2];
|
5582 | }
|
5583 | args.unshift(this.page.dictionary);
|
5584 | this._root.data.Names.data.Dests.add(name, args);
|
5585 | }
|
5586 | addNamedEmbeddedFile(name, ref) {
|
5587 | if (!this._root.data.Names.data.EmbeddedFiles) {
|
5588 |
|
5589 | this._root.data.Names.data.EmbeddedFiles = new PDFNameTree({
|
5590 | limits: false
|
5591 | });
|
5592 | }
|
5593 |
|
5594 |
|
5595 | this._root.data.Names.data.EmbeddedFiles.add(name, ref);
|
5596 | }
|
5597 | addNamedJavaScript(name, js) {
|
5598 | if (!this._root.data.Names.data.JavaScript) {
|
5599 | this._root.data.Names.data.JavaScript = new PDFNameTree();
|
5600 | }
|
5601 | let data = {
|
5602 | JS: new String(js),
|
5603 | S: 'JavaScript'
|
5604 | };
|
5605 | this._root.data.Names.data.JavaScript.add(name, data);
|
5606 | }
|
5607 | ref(data) {
|
5608 | const ref = new PDFReference(this, this._offsets.length + 1, data);
|
5609 | this._offsets.push(null);
|
5610 | this._waiting++;
|
5611 | return ref;
|
5612 | }
|
5613 | _read() {}
|
5614 |
|
5615 |
|
5616 | _write(data) {
|
5617 | if (!Buffer.isBuffer(data)) {
|
5618 | data = Buffer.from(data + '\n', 'binary');
|
5619 | }
|
5620 | this.push(data);
|
5621 | return this._offset += data.length;
|
5622 | }
|
5623 | addContent(data) {
|
5624 | this.page.write(data);
|
5625 | return this;
|
5626 | }
|
5627 | _refEnd(ref) {
|
5628 | this._offsets[ref.id - 1] = ref.offset;
|
5629 | if (--this._waiting === 0 && this._ended) {
|
5630 | this._finalize();
|
5631 | return this._ended = false;
|
5632 | }
|
5633 | }
|
5634 | end() {
|
5635 | this.flushPages();
|
5636 | this._info = this.ref();
|
5637 | for (let key in this.info) {
|
5638 | let val = this.info[key];
|
5639 | if (typeof val === 'string') {
|
5640 | val = new String(val);
|
5641 | }
|
5642 | let entry = this.ref(val);
|
5643 | entry.end();
|
5644 | this._info.data[key] = entry;
|
5645 | }
|
5646 | this._info.end();
|
5647 | for (let name in this._fontFamilies) {
|
5648 | const font = this._fontFamilies[name];
|
5649 | font.finalize();
|
5650 | }
|
5651 | this.endOutline();
|
5652 | this.endMarkings();
|
5653 | if (this.subset) {
|
5654 | this.endSubset();
|
5655 | }
|
5656 | this.endMetadata();
|
5657 | this._root.end();
|
5658 | this._root.data.Pages.end();
|
5659 | this._root.data.Names.end();
|
5660 | this.endAcroForm();
|
5661 | if (this._root.data.ViewerPreferences) {
|
5662 | this._root.data.ViewerPreferences.end();
|
5663 | }
|
5664 | if (this._security) {
|
5665 | this._security.end();
|
5666 | }
|
5667 | if (this._waiting === 0) {
|
5668 | return this._finalize();
|
5669 | } else {
|
5670 | return this._ended = true;
|
5671 | }
|
5672 | }
|
5673 | _finalize() {
|
5674 |
|
5675 | const xRefOffset = this._offset;
|
5676 | this._write('xref');
|
5677 | this._write(`0 ${this._offsets.length + 1}`);
|
5678 | this._write('0000000000 65535 f ');
|
5679 | for (let offset of this._offsets) {
|
5680 | offset = `0000000000${offset}`.slice(-10);
|
5681 | this._write(offset + ' 00000 n ');
|
5682 | }
|
5683 |
|
5684 |
|
5685 | const trailer = {
|
5686 | Size: this._offsets.length + 1,
|
5687 | Root: this._root,
|
5688 | Info: this._info,
|
5689 | ID: [this._id, this._id]
|
5690 | };
|
5691 | if (this._security) {
|
5692 | trailer.Encrypt = this._security.dictionary;
|
5693 | }
|
5694 | this._write('trailer');
|
5695 | this._write(PDFObject.convert(trailer));
|
5696 | this._write('startxref');
|
5697 | this._write(`${xRefOffset}`);
|
5698 | this._write('%%EOF');
|
5699 |
|
5700 |
|
5701 | return this.push(null);
|
5702 | }
|
5703 | toString() {
|
5704 | return '[object PDFDocument]';
|
5705 | }
|
5706 | }
|
5707 | const mixin = methods => {
|
5708 | Object.assign(PDFDocument.prototype, methods);
|
5709 | };
|
5710 | mixin(MetadataMixin);
|
5711 | mixin(ColorMixin);
|
5712 | mixin(VectorMixin);
|
5713 | mixin(FontsMixin);
|
5714 | mixin(TextMixin);
|
5715 | mixin(ImagesMixin);
|
5716 | mixin(AnnotationsMixin);
|
5717 | mixin(OutlineMixin);
|
5718 | mixin(MarkingsMixin);
|
5719 | mixin(AcroFormMixin);
|
5720 | mixin(AttachmentsMixin);
|
5721 | mixin(SubsetMixin);
|
5722 | PDFDocument.LineWrapper = LineWrapper;
|
5723 |
|
5724 | module.exports = PDFDocument;
|
5725 |
|