validate.js 18 KB

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  1. 'use strict';
  2. module.exports = function generate_validate(it, $keyword, $ruleType) {
  3. var out = '';
  4. var $async = it.schema.$async === true,
  5. $refKeywords = it.util.schemaHasRulesExcept(it.schema, it.RULES.all, '$ref'),
  6. $id = it.self._getId(it.schema);
  7. if (it.isTop) {
  8. if ($async) {
  9. it.async = true;
  10. var $es7 = it.opts.async == 'es7';
  11. it.yieldAwait = $es7 ? 'await' : 'yield';
  12. }
  13. out += ' var validate = ';
  14. if ($async) {
  15. if ($es7) {
  16. out += ' (async function ';
  17. } else {
  18. if (it.opts.async != '*') {
  19. out += 'co.wrap';
  20. }
  21. out += '(function* ';
  22. }
  23. } else {
  24. out += ' (function ';
  25. }
  26. out += ' (data, dataPath, parentData, parentDataProperty, rootData) { \'use strict\'; ';
  27. if ($id && (it.opts.sourceCode || it.opts.processCode)) {
  28. out += ' ' + ('/\*# sourceURL=' + $id + ' */') + ' ';
  29. }
  30. }
  31. if (typeof it.schema == 'boolean' || !($refKeywords || it.schema.$ref)) {
  32. var $keyword = 'false schema';
  33. var $lvl = it.level;
  34. var $dataLvl = it.dataLevel;
  35. var $schema = it.schema[$keyword];
  36. var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
  37. var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
  38. var $breakOnError = !it.opts.allErrors;
  39. var $errorKeyword;
  40. var $data = 'data' + ($dataLvl || '');
  41. var $valid = 'valid' + $lvl;
  42. if (it.schema === false) {
  43. if (it.isTop) {
  44. $breakOnError = true;
  45. } else {
  46. out += ' var ' + ($valid) + ' = false; ';
  47. }
  48. var $$outStack = $$outStack || [];
  49. $$outStack.push(out);
  50. out = ''; /* istanbul ignore else */
  51. if (it.createErrors !== false) {
  52. out += ' { keyword: \'' + ($errorKeyword || 'false schema') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: {} ';
  53. if (it.opts.messages !== false) {
  54. out += ' , message: \'boolean schema is false\' ';
  55. }
  56. if (it.opts.verbose) {
  57. out += ' , schema: false , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
  58. }
  59. out += ' } ';
  60. } else {
  61. out += ' {} ';
  62. }
  63. var __err = out;
  64. out = $$outStack.pop();
  65. if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
  66. if (it.async) {
  67. out += ' throw new ValidationError([' + (__err) + ']); ';
  68. } else {
  69. out += ' validate.errors = [' + (__err) + ']; return false; ';
  70. }
  71. } else {
  72. out += ' var err = ' + (__err) + '; if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
  73. }
  74. } else {
  75. if (it.isTop) {
  76. if ($async) {
  77. out += ' return data; ';
  78. } else {
  79. out += ' validate.errors = null; return true; ';
  80. }
  81. } else {
  82. out += ' var ' + ($valid) + ' = true; ';
  83. }
  84. }
  85. if (it.isTop) {
  86. out += ' }); return validate; ';
  87. }
  88. return out;
  89. }
  90. if (it.isTop) {
  91. var $top = it.isTop,
  92. $lvl = it.level = 0,
  93. $dataLvl = it.dataLevel = 0,
  94. $data = 'data';
  95. it.rootId = it.resolve.fullPath(it.self._getId(it.root.schema));
  96. it.baseId = it.baseId || it.rootId;
  97. delete it.isTop;
  98. it.dataPathArr = [undefined];
  99. out += ' var vErrors = null; ';
  100. out += ' var errors = 0; ';
  101. out += ' if (rootData === undefined) rootData = data; ';
  102. } else {
  103. var $lvl = it.level,
  104. $dataLvl = it.dataLevel,
  105. $data = 'data' + ($dataLvl || '');
  106. if ($id) it.baseId = it.resolve.url(it.baseId, $id);
  107. if ($async && !it.async) throw new Error('async schema in sync schema');
  108. out += ' var errs_' + ($lvl) + ' = errors;';
  109. }
  110. var $valid = 'valid' + $lvl,
  111. $breakOnError = !it.opts.allErrors,
  112. $closingBraces1 = '',
  113. $closingBraces2 = '';
  114. var $errorKeyword;
  115. var $typeSchema = it.schema.type,
  116. $typeIsArray = Array.isArray($typeSchema);
  117. if ($typeIsArray && $typeSchema.length == 1) {
  118. $typeSchema = $typeSchema[0];
  119. $typeIsArray = false;
  120. }
  121. if (it.schema.$ref && $refKeywords) {
  122. if (it.opts.extendRefs == 'fail') {
  123. throw new Error('$ref: validation keywords used in schema at path "' + it.errSchemaPath + '" (see option extendRefs)');
  124. } else if (it.opts.extendRefs !== true) {
  125. $refKeywords = false;
  126. it.logger.warn('$ref: keywords ignored in schema at path "' + it.errSchemaPath + '"');
  127. }
  128. }
  129. if ($typeSchema) {
  130. if (it.opts.coerceTypes) {
  131. var $coerceToTypes = it.util.coerceToTypes(it.opts.coerceTypes, $typeSchema);
  132. }
  133. var $rulesGroup = it.RULES.types[$typeSchema];
  134. if ($coerceToTypes || $typeIsArray || $rulesGroup === true || ($rulesGroup && !$shouldUseGroup($rulesGroup))) {
  135. var $schemaPath = it.schemaPath + '.type',
  136. $errSchemaPath = it.errSchemaPath + '/type';
  137. var $schemaPath = it.schemaPath + '.type',
  138. $errSchemaPath = it.errSchemaPath + '/type',
  139. $method = $typeIsArray ? 'checkDataTypes' : 'checkDataType';
  140. out += ' if (' + (it.util[$method]($typeSchema, $data, true)) + ') { ';
  141. if ($coerceToTypes) {
  142. var $dataType = 'dataType' + $lvl,
  143. $coerced = 'coerced' + $lvl;
  144. out += ' var ' + ($dataType) + ' = typeof ' + ($data) + '; ';
  145. if (it.opts.coerceTypes == 'array') {
  146. out += ' if (' + ($dataType) + ' == \'object\' && Array.isArray(' + ($data) + ')) ' + ($dataType) + ' = \'array\'; ';
  147. }
  148. out += ' var ' + ($coerced) + ' = undefined; ';
  149. var $bracesCoercion = '';
  150. var arr1 = $coerceToTypes;
  151. if (arr1) {
  152. var $type, $i = -1,
  153. l1 = arr1.length - 1;
  154. while ($i < l1) {
  155. $type = arr1[$i += 1];
  156. if ($i) {
  157. out += ' if (' + ($coerced) + ' === undefined) { ';
  158. $bracesCoercion += '}';
  159. }
  160. if (it.opts.coerceTypes == 'array' && $type != 'array') {
  161. out += ' if (' + ($dataType) + ' == \'array\' && ' + ($data) + '.length == 1) { ' + ($coerced) + ' = ' + ($data) + ' = ' + ($data) + '[0]; ' + ($dataType) + ' = typeof ' + ($data) + '; } ';
  162. }
  163. if ($type == 'string') {
  164. out += ' if (' + ($dataType) + ' == \'number\' || ' + ($dataType) + ' == \'boolean\') ' + ($coerced) + ' = \'\' + ' + ($data) + '; else if (' + ($data) + ' === null) ' + ($coerced) + ' = \'\'; ';
  165. } else if ($type == 'number' || $type == 'integer') {
  166. out += ' if (' + ($dataType) + ' == \'boolean\' || ' + ($data) + ' === null || (' + ($dataType) + ' == \'string\' && ' + ($data) + ' && ' + ($data) + ' == +' + ($data) + ' ';
  167. if ($type == 'integer') {
  168. out += ' && !(' + ($data) + ' % 1)';
  169. }
  170. out += ')) ' + ($coerced) + ' = +' + ($data) + '; ';
  171. } else if ($type == 'boolean') {
  172. out += ' if (' + ($data) + ' === \'false\' || ' + ($data) + ' === 0 || ' + ($data) + ' === null) ' + ($coerced) + ' = false; else if (' + ($data) + ' === \'true\' || ' + ($data) + ' === 1) ' + ($coerced) + ' = true; ';
  173. } else if ($type == 'null') {
  174. out += ' if (' + ($data) + ' === \'\' || ' + ($data) + ' === 0 || ' + ($data) + ' === false) ' + ($coerced) + ' = null; ';
  175. } else if (it.opts.coerceTypes == 'array' && $type == 'array') {
  176. out += ' if (' + ($dataType) + ' == \'string\' || ' + ($dataType) + ' == \'number\' || ' + ($dataType) + ' == \'boolean\' || ' + ($data) + ' == null) ' + ($coerced) + ' = [' + ($data) + ']; ';
  177. }
  178. }
  179. }
  180. out += ' ' + ($bracesCoercion) + ' if (' + ($coerced) + ' === undefined) { ';
  181. var $$outStack = $$outStack || [];
  182. $$outStack.push(out);
  183. out = ''; /* istanbul ignore else */
  184. if (it.createErrors !== false) {
  185. out += ' { keyword: \'' + ($errorKeyword || 'type') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { type: \'';
  186. if ($typeIsArray) {
  187. out += '' + ($typeSchema.join(","));
  188. } else {
  189. out += '' + ($typeSchema);
  190. }
  191. out += '\' } ';
  192. if (it.opts.messages !== false) {
  193. out += ' , message: \'should be ';
  194. if ($typeIsArray) {
  195. out += '' + ($typeSchema.join(","));
  196. } else {
  197. out += '' + ($typeSchema);
  198. }
  199. out += '\' ';
  200. }
  201. if (it.opts.verbose) {
  202. out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
  203. }
  204. out += ' } ';
  205. } else {
  206. out += ' {} ';
  207. }
  208. var __err = out;
  209. out = $$outStack.pop();
  210. if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
  211. if (it.async) {
  212. out += ' throw new ValidationError([' + (__err) + ']); ';
  213. } else {
  214. out += ' validate.errors = [' + (__err) + ']; return false; ';
  215. }
  216. } else {
  217. out += ' var err = ' + (__err) + '; if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
  218. }
  219. out += ' } else { ';
  220. var $parentData = $dataLvl ? 'data' + (($dataLvl - 1) || '') : 'parentData',
  221. $parentDataProperty = $dataLvl ? it.dataPathArr[$dataLvl] : 'parentDataProperty';
  222. out += ' ' + ($data) + ' = ' + ($coerced) + '; ';
  223. if (!$dataLvl) {
  224. out += 'if (' + ($parentData) + ' !== undefined)';
  225. }
  226. out += ' ' + ($parentData) + '[' + ($parentDataProperty) + '] = ' + ($coerced) + '; } ';
  227. } else {
  228. var $$outStack = $$outStack || [];
  229. $$outStack.push(out);
  230. out = ''; /* istanbul ignore else */
  231. if (it.createErrors !== false) {
  232. out += ' { keyword: \'' + ($errorKeyword || 'type') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { type: \'';
  233. if ($typeIsArray) {
  234. out += '' + ($typeSchema.join(","));
  235. } else {
  236. out += '' + ($typeSchema);
  237. }
  238. out += '\' } ';
  239. if (it.opts.messages !== false) {
  240. out += ' , message: \'should be ';
  241. if ($typeIsArray) {
  242. out += '' + ($typeSchema.join(","));
  243. } else {
  244. out += '' + ($typeSchema);
  245. }
  246. out += '\' ';
  247. }
  248. if (it.opts.verbose) {
  249. out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
  250. }
  251. out += ' } ';
  252. } else {
  253. out += ' {} ';
  254. }
  255. var __err = out;
  256. out = $$outStack.pop();
  257. if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
  258. if (it.async) {
  259. out += ' throw new ValidationError([' + (__err) + ']); ';
  260. } else {
  261. out += ' validate.errors = [' + (__err) + ']; return false; ';
  262. }
  263. } else {
  264. out += ' var err = ' + (__err) + '; if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
  265. }
  266. }
  267. out += ' } ';
  268. }
  269. }
  270. if (it.schema.$ref && !$refKeywords) {
  271. out += ' ' + (it.RULES.all.$ref.code(it, '$ref')) + ' ';
  272. if ($breakOnError) {
  273. out += ' } if (errors === ';
  274. if ($top) {
  275. out += '0';
  276. } else {
  277. out += 'errs_' + ($lvl);
  278. }
  279. out += ') { ';
  280. $closingBraces2 += '}';
  281. }
  282. } else {
  283. if (it.opts.v5 && it.schema.patternGroups) {
  284. it.logger.warn('keyword "patternGroups" is deprecated and disabled. Use option patternGroups: true to enable.');
  285. }
  286. var arr2 = it.RULES;
  287. if (arr2) {
  288. var $rulesGroup, i2 = -1,
  289. l2 = arr2.length - 1;
  290. while (i2 < l2) {
  291. $rulesGroup = arr2[i2 += 1];
  292. if ($shouldUseGroup($rulesGroup)) {
  293. if ($rulesGroup.type) {
  294. out += ' if (' + (it.util.checkDataType($rulesGroup.type, $data)) + ') { ';
  295. }
  296. if (it.opts.useDefaults && !it.compositeRule) {
  297. if ($rulesGroup.type == 'object' && it.schema.properties) {
  298. var $schema = it.schema.properties,
  299. $schemaKeys = Object.keys($schema);
  300. var arr3 = $schemaKeys;
  301. if (arr3) {
  302. var $propertyKey, i3 = -1,
  303. l3 = arr3.length - 1;
  304. while (i3 < l3) {
  305. $propertyKey = arr3[i3 += 1];
  306. var $sch = $schema[$propertyKey];
  307. if ($sch.default !== undefined) {
  308. var $passData = $data + it.util.getProperty($propertyKey);
  309. out += ' if (' + ($passData) + ' === undefined) ' + ($passData) + ' = ';
  310. if (it.opts.useDefaults == 'shared') {
  311. out += ' ' + (it.useDefault($sch.default)) + ' ';
  312. } else {
  313. out += ' ' + (JSON.stringify($sch.default)) + ' ';
  314. }
  315. out += '; ';
  316. }
  317. }
  318. }
  319. } else if ($rulesGroup.type == 'array' && Array.isArray(it.schema.items)) {
  320. var arr4 = it.schema.items;
  321. if (arr4) {
  322. var $sch, $i = -1,
  323. l4 = arr4.length - 1;
  324. while ($i < l4) {
  325. $sch = arr4[$i += 1];
  326. if ($sch.default !== undefined) {
  327. var $passData = $data + '[' + $i + ']';
  328. out += ' if (' + ($passData) + ' === undefined) ' + ($passData) + ' = ';
  329. if (it.opts.useDefaults == 'shared') {
  330. out += ' ' + (it.useDefault($sch.default)) + ' ';
  331. } else {
  332. out += ' ' + (JSON.stringify($sch.default)) + ' ';
  333. }
  334. out += '; ';
  335. }
  336. }
  337. }
  338. }
  339. }
  340. var arr5 = $rulesGroup.rules;
  341. if (arr5) {
  342. var $rule, i5 = -1,
  343. l5 = arr5.length - 1;
  344. while (i5 < l5) {
  345. $rule = arr5[i5 += 1];
  346. if ($shouldUseRule($rule)) {
  347. var $code = $rule.code(it, $rule.keyword, $rulesGroup.type);
  348. if ($code) {
  349. out += ' ' + ($code) + ' ';
  350. if ($breakOnError) {
  351. $closingBraces1 += '}';
  352. }
  353. }
  354. }
  355. }
  356. }
  357. if ($breakOnError) {
  358. out += ' ' + ($closingBraces1) + ' ';
  359. $closingBraces1 = '';
  360. }
  361. if ($rulesGroup.type) {
  362. out += ' } ';
  363. if ($typeSchema && $typeSchema === $rulesGroup.type && !$coerceToTypes) {
  364. out += ' else { ';
  365. var $schemaPath = it.schemaPath + '.type',
  366. $errSchemaPath = it.errSchemaPath + '/type';
  367. var $$outStack = $$outStack || [];
  368. $$outStack.push(out);
  369. out = ''; /* istanbul ignore else */
  370. if (it.createErrors !== false) {
  371. out += ' { keyword: \'' + ($errorKeyword || 'type') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { type: \'';
  372. if ($typeIsArray) {
  373. out += '' + ($typeSchema.join(","));
  374. } else {
  375. out += '' + ($typeSchema);
  376. }
  377. out += '\' } ';
  378. if (it.opts.messages !== false) {
  379. out += ' , message: \'should be ';
  380. if ($typeIsArray) {
  381. out += '' + ($typeSchema.join(","));
  382. } else {
  383. out += '' + ($typeSchema);
  384. }
  385. out += '\' ';
  386. }
  387. if (it.opts.verbose) {
  388. out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
  389. }
  390. out += ' } ';
  391. } else {
  392. out += ' {} ';
  393. }
  394. var __err = out;
  395. out = $$outStack.pop();
  396. if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
  397. if (it.async) {
  398. out += ' throw new ValidationError([' + (__err) + ']); ';
  399. } else {
  400. out += ' validate.errors = [' + (__err) + ']; return false; ';
  401. }
  402. } else {
  403. out += ' var err = ' + (__err) + '; if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
  404. }
  405. out += ' } ';
  406. }
  407. }
  408. if ($breakOnError) {
  409. out += ' if (errors === ';
  410. if ($top) {
  411. out += '0';
  412. } else {
  413. out += 'errs_' + ($lvl);
  414. }
  415. out += ') { ';
  416. $closingBraces2 += '}';
  417. }
  418. }
  419. }
  420. }
  421. }
  422. if ($breakOnError) {
  423. out += ' ' + ($closingBraces2) + ' ';
  424. }
  425. if ($top) {
  426. if ($async) {
  427. out += ' if (errors === 0) return data; ';
  428. out += ' else throw new ValidationError(vErrors); ';
  429. } else {
  430. out += ' validate.errors = vErrors; ';
  431. out += ' return errors === 0; ';
  432. }
  433. out += ' }); return validate;';
  434. } else {
  435. out += ' var ' + ($valid) + ' = errors === errs_' + ($lvl) + ';';
  436. }
  437. out = it.util.cleanUpCode(out);
  438. if ($top) {
  439. out = it.util.finalCleanUpCode(out, $async);
  440. }
  441. function $shouldUseGroup($rulesGroup) {
  442. var rules = $rulesGroup.rules;
  443. for (var i = 0; i < rules.length; i++)
  444. if ($shouldUseRule(rules[i])) return true;
  445. }
  446. function $shouldUseRule($rule) {
  447. return it.schema[$rule.keyword] !== undefined || ($rule.implements && $ruleImplementsSomeKeyword($rule));
  448. }
  449. function $ruleImplementsSomeKeyword($rule) {
  450. var impl = $rule.implements;
  451. for (var i = 0; i < impl.length; i++)
  452. if (it.schema[impl[i]] !== undefined) return true;
  453. }
  454. return out;
  455. }