postcss-url-parser.js 12 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.default = void 0;
  6. var _postcssValueParser = _interopRequireDefault(require("postcss-value-parser"));
  7. var _utils = require("../utils");
  8. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  9. const isUrlFunc = /url/i;
  10. const isImageSetFunc = /^(?:-webkit-)?image-set$/i;
  11. const needParseDeclaration = /(?:url|(?:-webkit-)?image-set)\(/i;
  12. function getNodeFromUrlFunc(node) {
  13. return node.nodes && node.nodes[0];
  14. }
  15. function getWebpackIgnoreCommentValue(index, nodes, inBetween) {
  16. if (index === 0 && typeof inBetween !== "undefined") {
  17. return inBetween;
  18. }
  19. let prevValueNode = nodes[index - 1];
  20. if (!prevValueNode) {
  21. // eslint-disable-next-line consistent-return
  22. return;
  23. }
  24. if (prevValueNode.type === "space") {
  25. if (!nodes[index - 2]) {
  26. // eslint-disable-next-line consistent-return
  27. return;
  28. }
  29. prevValueNode = nodes[index - 2];
  30. }
  31. if (prevValueNode.type !== "comment") {
  32. // eslint-disable-next-line consistent-return
  33. return;
  34. }
  35. const matched = prevValueNode.value.match(_utils.WEBPACK_IGNORE_COMMENT_REGEXP);
  36. return matched && matched[2] === "true";
  37. }
  38. function shouldHandleURL(url, declaration, result, options) {
  39. if (url.length === 0) {
  40. result.warn(`Unable to find uri in '${declaration.toString()}'`, {
  41. node: declaration
  42. });
  43. return {
  44. requestable: false,
  45. needResolve: false
  46. };
  47. }
  48. return (0, _utils.isURLRequestable)(url, options);
  49. }
  50. function parseDeclaration(declaration, key, result, options) {
  51. if (!needParseDeclaration.test(declaration[key])) {
  52. return;
  53. }
  54. const parsed = (0, _postcssValueParser.default)(declaration.raws && declaration.raws.value && declaration.raws.value.raw ? declaration.raws.value.raw : declaration[key]);
  55. let inBetween;
  56. if (declaration.raws && declaration.raws.between) {
  57. const lastCommentIndex = declaration.raws.between.lastIndexOf("/*");
  58. const matched = declaration.raws.between.slice(lastCommentIndex).match(_utils.WEBPACK_IGNORE_COMMENT_REGEXP);
  59. if (matched) {
  60. inBetween = matched[2] === "true";
  61. }
  62. }
  63. let isIgnoreOnDeclaration = false;
  64. const prevNode = declaration.prev();
  65. if (prevNode && prevNode.type === "comment") {
  66. const matched = prevNode.text.match(_utils.WEBPACK_IGNORE_COMMENT_REGEXP);
  67. if (matched) {
  68. isIgnoreOnDeclaration = matched[2] === "true";
  69. }
  70. }
  71. let needIgnore;
  72. const parsedURLs = [];
  73. parsed.walk((valueNode, index, valueNodes) => {
  74. if (valueNode.type !== "function") {
  75. return;
  76. }
  77. if (isUrlFunc.test(valueNode.value)) {
  78. needIgnore = getWebpackIgnoreCommentValue(index, valueNodes, inBetween);
  79. if (isIgnoreOnDeclaration && typeof needIgnore === "undefined" || needIgnore) {
  80. if (needIgnore) {
  81. // eslint-disable-next-line no-undefined
  82. needIgnore = undefined;
  83. }
  84. return;
  85. }
  86. const {
  87. nodes
  88. } = valueNode;
  89. const isStringValue = nodes.length !== 0 && nodes[0].type === "string";
  90. let url = isStringValue ? nodes[0].value : _postcssValueParser.default.stringify(nodes);
  91. url = (0, _utils.normalizeUrl)(url, isStringValue);
  92. const {
  93. requestable,
  94. needResolve
  95. } = shouldHandleURL(url, declaration, result, options); // Do not traverse inside `url`
  96. if (!requestable) {
  97. // eslint-disable-next-line consistent-return
  98. return false;
  99. }
  100. const queryParts = url.split("!");
  101. let prefix;
  102. if (queryParts.length > 1) {
  103. url = queryParts.pop();
  104. prefix = queryParts.join("!");
  105. }
  106. parsedURLs.push({
  107. declaration,
  108. parsed,
  109. node: getNodeFromUrlFunc(valueNode),
  110. prefix,
  111. url,
  112. needQuotes: false,
  113. needResolve
  114. }); // eslint-disable-next-line consistent-return
  115. return false;
  116. } else if (isImageSetFunc.test(valueNode.value)) {
  117. for (const [innerIndex, nNode] of valueNode.nodes.entries()) {
  118. const {
  119. type,
  120. value
  121. } = nNode;
  122. if (type === "function" && isUrlFunc.test(value)) {
  123. needIgnore = getWebpackIgnoreCommentValue(innerIndex, valueNode.nodes);
  124. if (isIgnoreOnDeclaration && typeof needIgnore === "undefined" || needIgnore) {
  125. if (needIgnore) {
  126. // eslint-disable-next-line no-undefined
  127. needIgnore = undefined;
  128. } // eslint-disable-next-line no-continue
  129. continue;
  130. }
  131. const {
  132. nodes
  133. } = nNode;
  134. const isStringValue = nodes.length !== 0 && nodes[0].type === "string";
  135. let url = isStringValue ? nodes[0].value : _postcssValueParser.default.stringify(nodes);
  136. url = (0, _utils.normalizeUrl)(url, isStringValue);
  137. const {
  138. requestable,
  139. needResolve
  140. } = shouldHandleURL(url, declaration, result, options); // Do not traverse inside `url`
  141. if (!requestable) {
  142. // eslint-disable-next-line consistent-return
  143. return false;
  144. }
  145. const queryParts = url.split("!");
  146. let prefix;
  147. if (queryParts.length > 1) {
  148. url = queryParts.pop();
  149. prefix = queryParts.join("!");
  150. }
  151. parsedURLs.push({
  152. declaration,
  153. parsed,
  154. node: getNodeFromUrlFunc(nNode),
  155. prefix,
  156. url,
  157. needQuotes: false,
  158. needResolve
  159. });
  160. } else if (type === "string") {
  161. needIgnore = getWebpackIgnoreCommentValue(innerIndex, valueNode.nodes);
  162. if (isIgnoreOnDeclaration && typeof needIgnore === "undefined" || needIgnore) {
  163. if (needIgnore) {
  164. // eslint-disable-next-line no-undefined
  165. needIgnore = undefined;
  166. } // eslint-disable-next-line no-continue
  167. continue;
  168. }
  169. let url = (0, _utils.normalizeUrl)(value, true);
  170. const {
  171. requestable,
  172. needResolve
  173. } = shouldHandleURL(url, declaration, result, options); // Do not traverse inside `url`
  174. if (!requestable) {
  175. // eslint-disable-next-line consistent-return
  176. return false;
  177. }
  178. const queryParts = url.split("!");
  179. let prefix;
  180. if (queryParts.length > 1) {
  181. url = queryParts.pop();
  182. prefix = queryParts.join("!");
  183. }
  184. parsedURLs.push({
  185. declaration,
  186. parsed,
  187. node: nNode,
  188. prefix,
  189. url,
  190. needQuotes: true,
  191. needResolve
  192. });
  193. }
  194. } // Do not traverse inside `image-set`
  195. // eslint-disable-next-line consistent-return
  196. return false;
  197. }
  198. }); // eslint-disable-next-line consistent-return
  199. return parsedURLs;
  200. }
  201. const plugin = (options = {}) => {
  202. return {
  203. postcssPlugin: "postcss-url-parser",
  204. prepare(result) {
  205. const parsedDeclarations = [];
  206. return {
  207. Declaration(declaration) {
  208. const {
  209. isSupportDataURL,
  210. isSupportAbsoluteURL
  211. } = options;
  212. const parsedURL = parseDeclaration(declaration, "value", result, {
  213. isSupportDataURL,
  214. isSupportAbsoluteURL
  215. });
  216. if (!parsedURL) {
  217. return;
  218. }
  219. parsedDeclarations.push(...parsedURL);
  220. },
  221. async OnceExit() {
  222. if (parsedDeclarations.length === 0) {
  223. return;
  224. }
  225. const resolvedDeclarations = await Promise.all(parsedDeclarations.map(async parsedDeclaration => {
  226. const {
  227. url,
  228. needResolve
  229. } = parsedDeclaration;
  230. if (options.filter) {
  231. const needKeep = await options.filter(url);
  232. if (!needKeep) {
  233. // eslint-disable-next-line consistent-return
  234. return;
  235. }
  236. }
  237. if (!needResolve) {
  238. // eslint-disable-next-line consistent-return
  239. return parsedDeclaration;
  240. }
  241. const splittedUrl = url.split(/(\?)?#/);
  242. const [pathname, query, hashOrQuery] = splittedUrl;
  243. let hash = query ? "?" : "";
  244. hash += hashOrQuery ? `#${hashOrQuery}` : "";
  245. const {
  246. resolver,
  247. rootContext
  248. } = options;
  249. const request = (0, _utils.requestify)(pathname, rootContext, Boolean(resolver));
  250. if (!resolver) {
  251. // eslint-disable-next-line consistent-return
  252. return { ...parsedDeclaration,
  253. url: request,
  254. hash
  255. };
  256. }
  257. const resolvedURL = await (0, _utils.resolveRequests)(resolver, options.context, [...new Set([request, url])]);
  258. if (!resolvedURL) {
  259. // eslint-disable-next-line consistent-return
  260. return;
  261. } // eslint-disable-next-line consistent-return
  262. return { ...parsedDeclaration,
  263. url: resolvedURL,
  264. hash
  265. };
  266. }));
  267. const urlToNameMap = new Map();
  268. const urlToReplacementMap = new Map();
  269. let hasUrlImportHelper = false;
  270. for (let index = 0; index <= resolvedDeclarations.length - 1; index++) {
  271. const item = resolvedDeclarations[index];
  272. if (!item) {
  273. // eslint-disable-next-line no-continue
  274. continue;
  275. }
  276. if (!hasUrlImportHelper) {
  277. options.imports.push({
  278. type: "get_url_import",
  279. importName: "___CSS_LOADER_GET_URL_IMPORT___",
  280. url: options.urlHandler(require.resolve("../runtime/getUrl.js")),
  281. index: -1
  282. });
  283. hasUrlImportHelper = true;
  284. }
  285. const {
  286. url,
  287. prefix
  288. } = item;
  289. const newUrl = prefix ? `${prefix}!${url}` : url;
  290. let importName = urlToNameMap.get(newUrl);
  291. if (!importName) {
  292. importName = `___CSS_LOADER_URL_IMPORT_${urlToNameMap.size}___`;
  293. urlToNameMap.set(newUrl, importName);
  294. options.imports.push({
  295. type: "url",
  296. importName,
  297. url: options.resolver ? options.urlHandler(newUrl) : JSON.stringify(newUrl),
  298. index
  299. });
  300. }
  301. const {
  302. hash,
  303. needQuotes
  304. } = item;
  305. const replacementKey = JSON.stringify({
  306. newUrl,
  307. hash,
  308. needQuotes
  309. });
  310. let replacementName = urlToReplacementMap.get(replacementKey);
  311. if (!replacementName) {
  312. replacementName = `___CSS_LOADER_URL_REPLACEMENT_${urlToReplacementMap.size}___`;
  313. urlToReplacementMap.set(replacementKey, replacementName);
  314. options.replacements.push({
  315. replacementName,
  316. importName,
  317. hash,
  318. needQuotes
  319. });
  320. } // eslint-disable-next-line no-param-reassign
  321. item.node.type = "word"; // eslint-disable-next-line no-param-reassign
  322. item.node.value = replacementName; // eslint-disable-next-line no-param-reassign
  323. item.declaration.value = item.parsed.toString();
  324. }
  325. }
  326. };
  327. }
  328. };
  329. };
  330. plugin.postcss = true;
  331. var _default = plugin;
  332. exports.default = _default;