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"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.embedResources = exports.shouldEmbed = exports.embed = exports.parseURLs = exports.toRegex = void 0;
var getBlobFromURL_1 = require("./getBlobFromURL");
var util_1 = require("./util");
var URL_REGEX = /url\((['"]?)([^'"]+?)\1\)/g;
var URL_WITH_FORMAT_REGEX = /url\([^)]+\)\s*format\((["'])([^"']+)\1\)/g;
var FONT_SRC_REGEX = /src:\s*(?:url\([^)]+\)\s*format\([^)]+\)[,;]\s*)+/g;
function toRegex(url) {
// eslint-disable-next-line no-useless-escape
var escaped = url.replace(/([.*+?^${}()|\[\]\/\\])/g, '\\$1');
return new RegExp("(url\\(['\"]?)(" + escaped + ")(['\"]?\\))", 'g');
}
exports.toRegex = toRegex;
function parseURLs(cssText) {
var result = [];
cssText.replace(URL_REGEX, function (raw, quotation, url) {
result.push(url);
return raw;
});
return result.filter(function (url) { return !(0, util_1.isDataUrl)(url); });
}
exports.parseURLs = parseURLs;
function embed(cssText, resourceURL, baseURL, options, get) {
var resolvedURL = baseURL ? (0, util_1.resolveUrl)(resourceURL, baseURL) : resourceURL;
return Promise.resolve(resolvedURL)
.then(function (url) {
return get ? get(url) : (0, getBlobFromURL_1.getBlobFromURL)(url, options);
})
.then(function (data) {
if (typeof data === 'string') {
return (0, util_1.makeDataUrl)(data, (0, util_1.getMimeType)(resourceURL));
}
return (0, util_1.makeDataUrl)(data.blob, (0, util_1.getMimeType)(resourceURL) || data.contentType);
})
.then(function (dataURL) { return cssText.replace(toRegex(resourceURL), "$1" + dataURL + "$3"); })
.then(function (content) { return content; }, function () { return resolvedURL; });
}
exports.embed = embed;
function filterPreferredFontFormat(str, _a) {
var preferredFontFormat = _a.preferredFontFormat;
return !preferredFontFormat
? str
: str.replace(FONT_SRC_REGEX, function (match) {
// eslint-disable-next-line no-constant-condition
while (true) {
var _a = URL_WITH_FORMAT_REGEX.exec(match) || [], src = _a[0], format = _a[2];
if (!format) {
return '';
}
if (format === preferredFontFormat) {
return "src: " + src + ";";
}
}
});
}
function shouldEmbed(url) {
return url.search(URL_REGEX) !== -1;
}
exports.shouldEmbed = shouldEmbed;
function embedResources(cssText, baseUrl, options) {
return __awaiter(this, void 0, void 0, function () {
var filteredCSSText;
return __generator(this, function (_a) {
if (!shouldEmbed(cssText)) {
return [2 /*return*/, Promise.resolve(cssText)];
}
filteredCSSText = filterPreferredFontFormat(cssText, options);
return [2 /*return*/, Promise.resolve(filteredCSSText)
.then(parseURLs)
.then(function (urls) {
return urls.reduce(function (deferred, url) {
// eslint-disable-next-line promise/no-nesting
return deferred.then(function (css) { return embed(css, url, baseUrl, options); });
}, Promise.resolve(filteredCSSText));
})];
});
});
}
exports.embedResources = embedResources;
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