1 | "use strict";
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | exports.getSchemaRefs = exports.resolveUrl = exports.normalizeId = exports._getFullPath = exports.getFullPath = exports.inlineRef = void 0;
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4 | const util_1 = require("./util");
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5 | const equal = require("fast-deep-equal");
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6 | const traverse = require("json-schema-traverse");
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7 |
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8 | const SIMPLE_INLINED = new Set([
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9 | "type",
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10 | "format",
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11 | "pattern",
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12 | "maxLength",
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13 | "minLength",
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14 | "maxProperties",
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15 | "minProperties",
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16 | "maxItems",
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17 | "minItems",
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18 | "maximum",
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19 | "minimum",
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20 | "uniqueItems",
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21 | "multipleOf",
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22 | "required",
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23 | "enum",
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24 | "const",
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25 | ]);
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26 | function inlineRef(schema, limit = true) {
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27 | if (typeof schema == "boolean")
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28 | return true;
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29 | if (limit === true)
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30 | return !hasRef(schema);
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31 | if (!limit)
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32 | return false;
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33 | return countKeys(schema) <= limit;
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34 | }
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35 | exports.inlineRef = inlineRef;
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36 | const REF_KEYWORDS = new Set([
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37 | "$ref",
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38 | "$recursiveRef",
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39 | "$recursiveAnchor",
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40 | "$dynamicRef",
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41 | "$dynamicAnchor",
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42 | ]);
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43 | function hasRef(schema) {
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44 | for (const key in schema) {
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45 | if (REF_KEYWORDS.has(key))
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46 | return true;
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47 | const sch = schema[key];
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48 | if (Array.isArray(sch) && sch.some(hasRef))
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49 | return true;
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50 | if (typeof sch == "object" && hasRef(sch))
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51 | return true;
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52 | }
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53 | return false;
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54 | }
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55 | function countKeys(schema) {
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56 | let count = 0;
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57 | for (const key in schema) {
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58 | if (key === "$ref")
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59 | return Infinity;
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60 | count++;
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61 | if (SIMPLE_INLINED.has(key))
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62 | continue;
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63 | if (typeof schema[key] == "object") {
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64 | (0, util_1.eachItem)(schema[key], (sch) => (count += countKeys(sch)));
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65 | }
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66 | if (count === Infinity)
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67 | return Infinity;
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68 | }
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69 | return count;
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70 | }
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71 | function getFullPath(resolver, id = "", normalize) {
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72 | if (normalize !== false)
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73 | id = normalizeId(id);
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74 | const p = resolver.parse(id);
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75 | return _getFullPath(resolver, p);
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76 | }
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77 | exports.getFullPath = getFullPath;
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78 | function _getFullPath(resolver, p) {
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79 | const serialized = resolver.serialize(p);
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80 | return serialized.split("#")[0] + "#";
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81 | }
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82 | exports._getFullPath = _getFullPath;
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83 | const TRAILING_SLASH_HASH = /#\/?$/;
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84 | function normalizeId(id) {
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85 | return id ? id.replace(TRAILING_SLASH_HASH, "") : "";
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86 | }
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87 | exports.normalizeId = normalizeId;
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88 | function resolveUrl(resolver, baseId, id) {
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89 | id = normalizeId(id);
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90 | return resolver.resolve(baseId, id);
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91 | }
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92 | exports.resolveUrl = resolveUrl;
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93 | const ANCHOR = /^[a-z_][-a-z0-9._]*$/i;
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94 | function getSchemaRefs(schema, baseId) {
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95 | if (typeof schema == "boolean")
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96 | return {};
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97 | const { schemaId, uriResolver } = this.opts;
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98 | const schId = normalizeId(schema[schemaId] || baseId);
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99 | const baseIds = { "": schId };
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100 | const pathPrefix = getFullPath(uriResolver, schId, false);
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101 | const localRefs = {};
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102 | const schemaRefs = new Set();
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103 | traverse(schema, { allKeys: true }, (sch, jsonPtr, _, parentJsonPtr) => {
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104 | if (parentJsonPtr === undefined)
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105 | return;
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106 | const fullPath = pathPrefix + jsonPtr;
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107 | let baseId = baseIds[parentJsonPtr];
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108 | if (typeof sch[schemaId] == "string")
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109 | baseId = addRef.call(this, sch[schemaId]);
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110 | addAnchor.call(this, sch.$anchor);
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111 | addAnchor.call(this, sch.$dynamicAnchor);
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112 | baseIds[jsonPtr] = baseId;
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113 | function addRef(ref) {
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114 |
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115 | const _resolve = this.opts.uriResolver.resolve;
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116 | ref = normalizeId(baseId ? _resolve(baseId, ref) : ref);
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117 | if (schemaRefs.has(ref))
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118 | throw ambiguos(ref);
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119 | schemaRefs.add(ref);
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120 | let schOrRef = this.refs[ref];
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121 | if (typeof schOrRef == "string")
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122 | schOrRef = this.refs[schOrRef];
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123 | if (typeof schOrRef == "object") {
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124 | checkAmbiguosRef(sch, schOrRef.schema, ref);
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125 | }
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126 | else if (ref !== normalizeId(fullPath)) {
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127 | if (ref[0] === "#") {
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128 | checkAmbiguosRef(sch, localRefs[ref], ref);
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129 | localRefs[ref] = sch;
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130 | }
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131 | else {
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132 | this.refs[ref] = fullPath;
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133 | }
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134 | }
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135 | return ref;
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136 | }
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137 | function addAnchor(anchor) {
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138 | if (typeof anchor == "string") {
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139 | if (!ANCHOR.test(anchor))
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140 | throw new Error(`invalid anchor "${anchor}"`);
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141 | addRef.call(this, `#${anchor}`);
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142 | }
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143 | }
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144 | });
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145 | return localRefs;
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146 | function checkAmbiguosRef(sch1, sch2, ref) {
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147 | if (sch2 !== undefined && !equal(sch1, sch2))
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148 | throw ambiguos(ref);
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149 | }
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150 | function ambiguos(ref) {
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151 | return new Error(`reference "${ref}" resolves to more than one schema`);
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152 | }
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153 | }
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154 | exports.getSchemaRefs = getSchemaRefs;
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155 |
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