332 lines
11 KiB
JavaScript
332 lines
11 KiB
JavaScript
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var JSON5 = require("json5");
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var path = require("path");
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var util = require("util");
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var os = require("os");
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var assign = require("object-assign");
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var emojiRegex = /[\uD800-\uDFFF]./;
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var emojiList = require("emojis-list").filter(function(emoji) {
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return emojiRegex.test(emoji)
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});
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var matchAbsolutePath = /^\/|^[A-Z]:[/\\]|^\\\\/i; // node 0.10 does not support path.isAbsolute()
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var matchAbsoluteWin32Path = /^[A-Z]:[/\\]|^\\\\/i;
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var matchRelativePath = /^\.\.?[/\\]/;
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var baseEncodeTables = {
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26: "abcdefghijklmnopqrstuvwxyz",
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32: "123456789abcdefghjkmnpqrstuvwxyz", // no 0lio
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36: "0123456789abcdefghijklmnopqrstuvwxyz",
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49: "abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ", // no lIO
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52: "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ",
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58: "123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ", // no 0lIO
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62: "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ",
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64: "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_"
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};
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var emojiCache = {};
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var parseQueryDeprecationWarning = util.deprecate(function() {},
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"loaderUtils.parseQuery() received a non-string value which can be problematic, " +
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"see https://github.com/webpack/loader-utils/issues/56" + os.EOL +
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"parseQuery() will be replaced with getOptions() in the next major version of loader-utils."
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);
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function encodeStringToEmoji(content, length) {
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if (emojiCache[content]) return emojiCache[content];
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length = length || 1;
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var emojis = [];
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do {
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var index = Math.floor(Math.random() * emojiList.length);
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emojis.push(emojiList[index]);
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emojiList.splice(index, 1);
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} while (--length > 0);
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var emojiEncoding = emojis.join('');
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emojiCache[content] = emojiEncoding;
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return emojiEncoding;
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}
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function encodeBufferToBase(buffer, base) {
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var encodeTable = baseEncodeTables[base];
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if (!encodeTable) throw new Error("Unknown encoding base" + base);
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var readLength = buffer.length;
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var Big = require('big.js');
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Big.RM = Big.DP = 0;
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var b = new Big(0);
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for (var i = readLength - 1; i >= 0; i--) {
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b = b.times(256).plus(buffer[i]);
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}
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var output = "";
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while (b.gt(0)) {
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output = encodeTable[b.mod(base)] + output;
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b = b.div(base);
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}
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Big.DP = 20;
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Big.RM = 1;
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return output;
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}
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exports.parseQuery = function parseQuery(query) {
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var specialValues = {
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'null': null,
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'true': true,
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'false': false
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};
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if(!query) return {};
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if(typeof query !== "string") {
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parseQueryDeprecationWarning();
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return query;
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}
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if(query.substr(0, 1) !== "?")
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throw new Error("a valid query string passed to parseQuery should begin with '?'");
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query = query.substr(1);
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var queryLength = query.length;
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if(query.substr(0, 1) === "{" && query.substr(-1) === "}") {
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return JSON5.parse(query);
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}
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var queryArgs = query.split(/[,\&]/g);
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var result = {};
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queryArgs.forEach(function(arg) {
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var idx = arg.indexOf("=");
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if(idx >= 0) {
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var name = arg.substr(0, idx);
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var value = decodeURIComponent(arg.substr(idx+1));
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if (specialValues.hasOwnProperty(value)) {
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value = specialValues[value];
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}
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if(name.substr(-2) === "[]") {
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name = decodeURIComponent(name.substr(0, name.length-2));
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if(!Array.isArray(result[name]))
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result[name] = [];
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result[name].push(value);
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} else {
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name = decodeURIComponent(name);
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result[name] = value;
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}
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} else {
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if(arg.substr(0, 1) === "-") {
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result[decodeURIComponent(arg.substr(1))] = false;
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} else if(arg.substr(0, 1) === "+") {
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result[decodeURIComponent(arg.substr(1))] = true;
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} else {
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result[decodeURIComponent(arg)] = true;
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}
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}
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});
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return result;
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};
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exports.getLoaderConfig = function(loaderContext, defaultConfigKey) {
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var query = exports.parseQuery(loaderContext.query);
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var configKey = query.config || defaultConfigKey;
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if (configKey) {
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var config = loaderContext.options[configKey] || {};
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delete query.config;
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return assign({}, config, query);
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}
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return query;
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};
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exports.stringifyRequest = function(loaderContext, request) {
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var splitted = request.split("!");
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var context = loaderContext.context || (loaderContext.options && loaderContext.options.context);
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return JSON.stringify(splitted.map(function(part) {
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// First, separate singlePath from query, because the query might contain paths again
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var splittedPart = part.match(/^(.*?)(\?.*)/);
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var singlePath = splittedPart ? splittedPart[1] : part;
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var query = splittedPart ? splittedPart[2] : "";
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if(matchAbsolutePath.test(singlePath) && context) {
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singlePath = path.relative(context, singlePath);
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if(matchAbsolutePath.test(singlePath)) {
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// If singlePath still matches an absolute path, singlePath was on a different drive than context.
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// In this case, we leave the path platform-specific without replacing any separators.
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// @see https://github.com/webpack/loader-utils/pull/14
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return singlePath + query;
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}
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if(matchRelativePath.test(singlePath) === false) {
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// Ensure that the relative path starts at least with ./ otherwise it would be a request into the modules directory (like node_modules).
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singlePath = "./" + singlePath;
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}
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}
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return singlePath.replace(/\\/g, "/") + query;
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}).join("!"));
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};
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function dotRequest(obj) {
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return obj.request;
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}
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exports.getRemainingRequest = function(loaderContext) {
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if(loaderContext.remainingRequest)
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return loaderContext.remainingRequest;
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var request = loaderContext.loaders.slice(loaderContext.loaderIndex+1).map(dotRequest).concat([loaderContext.resource]);
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return request.join("!");
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};
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exports.getCurrentRequest = function(loaderContext) {
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if(loaderContext.currentRequest)
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return loaderContext.currentRequest;
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var request = loaderContext.loaders.slice(loaderContext.loaderIndex).map(dotRequest).concat([loaderContext.resource]);
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return request.join("!");
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};
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exports.isUrlRequest = function(url, root) {
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// An URL is not an request if
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// 1. it's a Data Url
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// 2. it's an absolute url or and protocol-relative
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// 3. it's some kind of url for a template
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if(/^data:|^chrome-extension:|^(https?:)?\/\/|^[\{\}\[\]#*;,'§\$%&\(=?`´\^°<>]/.test(url)) return false;
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// 4. It's also not an request if root isn't set and it's a root-relative url
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if((root === undefined || root === false) && /^\//.test(url)) return false;
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return true;
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};
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exports.urlToRequest = function(url, root) {
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var moduleRequestRegex = /^[^?]*~/;
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var request;
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if(matchAbsoluteWin32Path.test(url)) {
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// absolute windows path, keep it
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request = url;
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} else if(root !== undefined && root !== false && /^\//.test(url)) {
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// if root is set and the url is root-relative
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switch(typeof root) {
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// 1. root is a string: root is prefixed to the url
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case "string":
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// special case: `~` roots convert to module request
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if (moduleRequestRegex.test(root)) {
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request = root.replace(/([^~\/])$/, "$1/") + url.slice(1);
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} else {
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request = root + url;
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}
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break;
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// 2. root is `true`: absolute paths are allowed
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// *nix only, windows-style absolute paths are always allowed as they doesn't start with a `/`
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case "boolean":
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request = url;
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break;
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default:
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throw new Error("Unexpected parameters to loader-utils 'urlToRequest': url = " + url + ", root = " + root + ".");
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}
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} else if(/^\.\.?\//.test(url)) {
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// A relative url stays
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request = url;
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} else {
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// every other url is threaded like a relative url
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request = "./" + url;
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}
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// A `~` makes the url an module
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if (moduleRequestRegex.test(request)) {
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request = request.replace(moduleRequestRegex, "");
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}
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return request;
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};
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exports.parseString = function parseString(str) {
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try {
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if(str[0] === '"') return JSON.parse(str);
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if(str[0] === "'" && str.substr(str.length - 1) === "'") {
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return parseString(str.replace(/\\.|"/g, function(x) {
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if(x === '"') return '\\"';
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return x;
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}).replace(/^'|'$/g, '"'));
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}
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return JSON.parse('"' + str + '"');
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} catch(e) {
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return str;
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}
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};
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exports.getHashDigest = function getHashDigest(buffer, hashType, digestType, maxLength) {
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hashType = hashType || "md5";
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maxLength = maxLength || 9999;
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var hash = require("crypto").createHash(hashType);
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hash.update(buffer);
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if (digestType === "base26" || digestType === "base32" || digestType === "base36" ||
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digestType === "base49" || digestType === "base52" || digestType === "base58" ||
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digestType === "base62" || digestType === "base64") {
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return encodeBufferToBase(hash.digest(), digestType.substr(4)).substr(0, maxLength);
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} else {
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return hash.digest(digestType || "hex").substr(0, maxLength);
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}
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};
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exports.interpolateName = function interpolateName(loaderContext, name, options) {
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var filename;
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if (typeof name === "function") {
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filename = name(loaderContext.resourcePath);
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} else {
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filename = name || "[hash].[ext]";
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}
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var context = options.context;
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var content = options.content;
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var regExp = options.regExp;
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var ext = "bin";
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var basename = "file";
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var directory = "";
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var folder = "";
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if(loaderContext.resourcePath) {
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var resourcePath = loaderContext.resourcePath;
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var idx = resourcePath.lastIndexOf(".");
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var i = resourcePath.lastIndexOf("\\");
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var j = resourcePath.lastIndexOf("/");
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var p = i < 0 ? j : j < 0 ? i : i < j ? i : j;
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if(idx >= 0) {
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ext = resourcePath.substr(idx+1);
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resourcePath = resourcePath.substr(0, idx);
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}
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if(p >= 0) {
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basename = resourcePath.substr(p+1);
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resourcePath = resourcePath.substr(0, p+1);
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}
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if (typeof context !== 'undefined') {
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directory = path.relative(context, resourcePath + "_").replace(/\\/g, "/").replace(/\.\.(\/)?/g, "_$1");
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directory = directory.substr(0, directory.length-1);
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}
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else {
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directory = resourcePath.replace(/\\/g, "/").replace(/\.\.(\/)?/g, "_$1");
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}
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if (directory.length === 1) {
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directory = "";
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} else if (directory.length > 1) {
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folder = path.basename(directory);
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}
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}
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var url = filename;
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if(content) {
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// Match hash template
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url = url.replace(/\[(?:(\w+):)?hash(?::([a-z]+\d*))?(?::(\d+))?\]/ig, function() {
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return exports.getHashDigest(content, arguments[1], arguments[2], parseInt(arguments[3], 10));
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}).replace(/\[emoji(?::(\d+))?\]/ig, function() {
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return encodeStringToEmoji(content, arguments[1]);
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});
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}
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url = url.replace(/\[ext\]/ig, function() {
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return ext;
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}).replace(/\[name\]/ig, function() {
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return basename;
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}).replace(/\[path\]/ig, function() {
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return directory;
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}).replace(/\[folder\]/ig, function() {
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return folder;
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});
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if(regExp && loaderContext.resourcePath) {
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var re = new RegExp(regExp);
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var match = loaderContext.resourcePath.match(re);
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if(match) {
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for (var i = 0; i < match.length; i++) {
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var re = new RegExp("\\[" + i + "\\]", "ig");
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url = url.replace(re, match[i]);
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}
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}
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}
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if(typeof loaderContext.options === "object" && typeof loaderContext.options.customInterpolateName === "function") {
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url = loaderContext.options.customInterpolateName.call(loaderContext, url, name, options);
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}
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return url;
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};
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