1 | 'use strict';
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2 |
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3 | var React = require('react');
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4 |
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5 | var _require = require('fs'),
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6 | readdirSync = _require.readdirSync;
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7 |
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8 | var _require2 = require('path'),
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9 | resolve = _require2.resolve;
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10 |
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11 | var _require3 = require('react-router-config'),
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12 | renderRoutes = _require3.renderRoutes,
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13 | matchRoutes = _require3.matchRoutes;
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14 |
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15 | var _require4 = require('./helpers.js'),
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16 | isObject = _require4.isObject,
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17 | isFunction = _require4.isFunction,
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18 | isString = _require4.isString,
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19 | isArray = _require4.isArray,
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20 | isBoolean = _require4.isBoolean,
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21 | arrayHasValues = _require4.arrayHasValues,
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22 | resolveComponent = _require4.resolveComponent,
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23 | renderComponent = _require4.renderComponent,
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24 | avoidXSS = _require4.avoidXSS,
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25 | objectHasValues = _require4.objectHasValues,
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26 | getComponentByPathname = _require4.getComponentByPathname,
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27 | getComponentFromRoutes = _require4.getComponentFromRoutes;
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28 |
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29 | module.exports = function (options) {
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30 | if (isObject(options)) {
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31 |
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32 |
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33 | var middleware = function middleware(req, res, next) {
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34 |
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35 | function prepareComponent() {
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36 | if (routes) {
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37 | var props = { title: 'Untitled' };
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38 |
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39 | if (arguments[0]) {
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40 | if (isObject(arguments[0])) {
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41 | props = Object.assign(props, arguments[0]);
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42 | }
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43 | }
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44 |
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45 | var results = getComponentFromRoutes(options.routes.collection, url ? url : originalUrl ? req.originalUrl : req.url, props, extract);
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46 |
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47 | results.reactRouter = true;
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48 |
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49 | return { component: results.Component, props: results };
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50 | } else {
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51 | if (arguments[0]) {
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52 | if (isString(arguments[0])) {
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53 |
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54 | var component = resolveComponent(resolve(componentsPath, arguments[0]));
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55 |
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56 | if (component) {
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57 | var _props = { title: 'Untitled' };
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58 |
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59 | if (arguments.length === 3 && isFunction(arguments[arguments.length - 1])) {
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60 | if (arguments[1]) {
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61 | if (isObject(arguments[1])) {
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62 | _props = Object.assign(_props, arguments[1]);
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63 | }
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64 | }
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65 | }
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66 |
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67 | return { component: component, props: { reactRouter: false, props: _props } };
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68 | } else {
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69 | throw 'component was not found in the filesystem';
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70 | }
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71 | } else {
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72 | throw 'component argument must be a string type';
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73 | }
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74 | } else {
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75 | throw 'component argument must be defined';
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76 | }
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77 | }
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78 | }
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79 |
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80 | function prepareContent(_url, component, props, template, id) {
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81 |
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82 | var content = renderComponent(_url, component, props);
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83 | var $ = require('cheerio').load(template);
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84 | $('title').text(props.props.title);
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85 | $('head').append('<script id="__initial_state__">window.__INITIAL_STATE__ = ' + avoidXSS(props) + ';</script>');
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86 | $('#' + id).html(content.html);
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87 |
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88 |
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89 | return {
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90 | html: $.html(),
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91 | context: content.context,
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92 | component: {
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93 | original: component,
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94 | rendered: content.html
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95 | },
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96 | props: {
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97 | original: props.props,
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98 | stringify: avoidXSS(props.props)
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99 | },
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100 | template: template,
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101 | changes: {
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102 | title: $('title').html(),
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103 | state: $('#__initial_state__').html(),
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104 | mount: $('#' + id).html()
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105 | },
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106 | routes: routes ? options.routes.collection : null,
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107 | route: routes ? getComponentByPathname(options.routes.collection, _url) : null
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108 | };
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109 | }
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110 |
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111 | function prepareResults(results, callback) {
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112 | if (isFunction(callback)) {
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113 | return callback(results);
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114 | } else {
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115 | return results;
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116 | }
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117 | }
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118 |
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119 |
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120 | req.render = function render() {
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121 |
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122 | var _prepareComponent = prepareComponent.apply(undefined, arguments),
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123 | component = _prepareComponent.component,
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124 | props = _prepareComponent.props;
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125 |
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126 |
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127 |
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128 |
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129 | var results = prepareContent(url ? url : originalUrl ? req.originalUrl : req.url, component, props, templateHTML, mountId);
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130 |
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131 |
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132 | return prepareResults(results, arguments[arguments.length - 1]);
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133 | };
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134 |
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135 |
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136 | return next();
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137 | };
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138 |
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139 |
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140 | var templateHTML = options.templateHTML,
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141 | mountId = options.mountId,
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142 | componentsPath = options.componentsPath,
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143 | originalUrl = options.originalUrl,
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144 | url = options.url;
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145 |
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146 | var routes = false;
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147 | var extract = false;
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148 |
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149 |
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150 | if ('routes' in options) {
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151 | if (!isObject(options.routes)) {
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152 | throw '"routes" property must be an object.';
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153 | } else {
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154 | if ('collection' in options.routes) {
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155 | if (!isArray(options.routes.collection)) {
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156 | throw '"collection" property must be an array type.';
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157 | }
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158 | } else {
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159 | throw '"routes" property must have a "collection" property.';
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160 | }
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161 |
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162 | if ('extractComponent' in options.routes) {
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163 | if (!isBoolean(options.routes.extractComponent)) {
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164 | throw '"extractComponent" property must be a boolean type.';
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165 | } else {
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166 | extract = options.routes.extractComponent;
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167 | }
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168 | } else {
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169 | extract = false;
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170 | }
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171 | }
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172 |
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173 |
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174 |
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175 |
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176 |
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177 | if (arrayHasValues(options.routes.collection)) {
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178 | routes = true;
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179 | }
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180 | }
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181 |
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182 |
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183 | if (!templateHTML) {
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184 | throw '"templateHTML" property must be defined';
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185 | } else {
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186 | if (!isString(templateHTML)) {
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187 | throw '"templateHTML" must be a string path type';
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188 | }
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189 | }
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190 |
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191 |
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192 | if (!mountId) {
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193 | throw '"mountId" property must be defined';
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194 | } else {
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195 | if (!isString(mountId)) {
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196 | throw '"mountId" must be a string path type';
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197 | } else {
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198 | if (!templateHTML.includes('id="' + mountId + '"')) {
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199 | throw '"mountId" was not found in the template';
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200 | }
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201 | }
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202 | }
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203 |
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204 |
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205 | if (!routes) {
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206 |
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207 | if (!componentsPath) {
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208 | throw '"componentsPath" property must be defined';
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209 | } else {
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210 | if (!isString(componentsPath)) {
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211 | throw '"componentsPath" must be a string path type';
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212 | } else {
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213 | try {
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214 | readdirSync(componentsPath, { encoding: 'UTF-8' });
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215 | } catch (err) {
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216 | throw '\n\nReason: Directory doesn\'t exists in the filesystem.\ncomponentsPath: "' + componentsPath + '"\nCode: "' + err.code + '"\n';
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217 | }
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218 | }
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219 | }
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220 | };
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221 |
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222 |
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223 | return middleware;
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224 | } else {
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225 | throw 'Options object was not passed to the middleware.';
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226 | }
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227 | };
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