103 lines
6.4 KiB
JavaScript
103 lines
6.4 KiB
JavaScript
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"use strict";
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// -------------------------------------------------------------
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// WARNING: this file is used by both the client and the server.
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// Do not use any browser or node-specific API!
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// -------------------------------------------------------------
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.add = exports.remove = exports.SCRIPT_PROCESSING_END_HEADER_COMMENT = exports.SCRIPT_PROCESSING_END_COMMENT = exports.SCRIPT_PROCESSING_START_COMMENT = void 0;
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const regexp_escape_1 = __importDefault(require("../../utils/regexp-escape"));
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const internal_properties_1 = __importDefault(require("../../processing/dom/internal-properties"));
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const instruction_1 = __importDefault(require("./instruction"));
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const service_routes_1 = __importDefault(require("../../proxy/service-routes"));
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const json_1 = require("../../utils/json");
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exports.SCRIPT_PROCESSING_START_COMMENT = '/*hammerhead|script|start*/';
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exports.SCRIPT_PROCESSING_END_COMMENT = '/*hammerhead|script|end*/';
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exports.SCRIPT_PROCESSING_END_HEADER_COMMENT = '/*hammerhead|script|processing-header-end*/';
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const STRICT_MODE_PLACEHOLDER = '{strict-placeholder}';
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const SW_SCOPE_HEADER_VALUE = '{sw-scope-header-value}';
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const WORKER_SETTINGS_PLACEHOLDER = '{worker-settings}';
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const IMPORT_WORKER_HAMMERHEAD = `
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if (typeof importScripts !== "undefined" && /\\[native code]/g.test(importScripts.toString())) {
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var ${instruction_1.default.getWorkerSettings} = function () {return ${WORKER_SETTINGS_PLACEHOLDER}};
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importScripts((location.origin || (location.protocol + "//" + location.host)) + "${service_routes_1.default.workerHammerhead}");
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}
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`;
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const PROCESS_DOM_METHOD = `window['${internal_properties_1.default.processDomMethodName}'] && window['${internal_properties_1.default.processDomMethodName}']();`;
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function trim(val) {
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return val.replace(/\n(?!$)\s*/g, '');
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}
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const PROXYLESS_HEADER = trim(`
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${exports.SCRIPT_PROCESSING_START_COMMENT}
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${STRICT_MODE_PLACEHOLDER}
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if (typeof window !== 'undefined' && window) {
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${PROCESS_DOM_METHOD}
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}
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${exports.SCRIPT_PROCESSING_END_HEADER_COMMENT}
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`);
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const HEADER = trim(`
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${exports.SCRIPT_PROCESSING_START_COMMENT}
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${STRICT_MODE_PLACEHOLDER}
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${SW_SCOPE_HEADER_VALUE}
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if (typeof window !== 'undefined' && window){
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${PROCESS_DOM_METHOD}
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if (window.${instruction_1.default.getProperty} && typeof ${instruction_1.default.getProperty} === 'undefined')
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var ${instruction_1.default.getLocation} = window.${instruction_1.default.getLocation},
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${instruction_1.default.setLocation} = window.${instruction_1.default.setLocation},
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${instruction_1.default.setProperty} = window.${instruction_1.default.setProperty},
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${instruction_1.default.getProperty} = window.${instruction_1.default.getProperty},
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${instruction_1.default.callMethod} = window.${instruction_1.default.callMethod},
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${instruction_1.default.getEval} = window.${instruction_1.default.getEval},
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${instruction_1.default.processScript} = window.${instruction_1.default.processScript},
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${instruction_1.default.processHtml} = window.${instruction_1.default.processHtml},
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${instruction_1.default.getPostMessage} = window.${instruction_1.default.getPostMessage},
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${instruction_1.default.getProxyUrl} = window.${instruction_1.default.getProxyUrl},
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${instruction_1.default.restArray} = window.${instruction_1.default.restArray},
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${instruction_1.default.restObject} = window.${instruction_1.default.restObject},
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${instruction_1.default.arrayFrom} = window.${instruction_1.default.arrayFrom};
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} else {
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if (typeof ${instruction_1.default.getProperty} === 'undefined')
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var ${instruction_1.default.getLocation} = function(l){return l},
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${instruction_1.default.setLocation} = function(l,v){return l = v},
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${instruction_1.default.setProperty} = function(o,p,v){return o[p] = v},
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${instruction_1.default.getProperty} = function(o,p){return o[p]},
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${instruction_1.default.callMethod} = function(o,p,a){return o[p].apply(o,a)},
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${instruction_1.default.getEval} = function(e){return e},
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${instruction_1.default.processScript} = function(s){return s},
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${instruction_1.default.processHtml} = function(h){return h},
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${instruction_1.default.getPostMessage} = function(w,p){return arguments.length===1?w.postMessage:p},
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${instruction_1.default.getProxyUrl} = function(u,d){return u},
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${instruction_1.default.restArray} = function(a,i){return Array.prototype.slice.call(a, i)},
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${instruction_1.default.restObject} = function(o,p){var k=Object.keys(o),n={};for(var i=0;i<k.length;++i)if(p.indexOf(k[i])<0)n[k[i]]=o[k[i]];return n},
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${instruction_1.default.arrayFrom} = function(r){if(!r)return r;return!Array.isArray(r)&&"function"==typeof r[Symbol.iterator]?Array.from(r):r};
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${IMPORT_WORKER_HAMMERHEAD}
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}
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${exports.SCRIPT_PROCESSING_END_HEADER_COMMENT}
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`);
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// NOTE: IE removes trailing newlines in script.textContent,
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// so a trailing newline in RegExp is optional
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const HEADER_RE = new RegExp(`${(0, regexp_escape_1.default)(exports.SCRIPT_PROCESSING_START_COMMENT)}[\\S\\s]+?${(0, regexp_escape_1.default)(exports.SCRIPT_PROCESSING_END_HEADER_COMMENT)}\n?`, 'gi');
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const PROCESSING_END_COMMENT_RE = new RegExp(`\n?${(0, regexp_escape_1.default)(exports.SCRIPT_PROCESSING_END_COMMENT)}\\s*`, 'gi');
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function remove(code) {
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return code
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.replace(HEADER_RE, '')
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.replace(PROCESSING_END_COMMENT_RE, '');
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}
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exports.remove = remove;
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function add(code, isStrictMode, swScopeHeaderValue, proxyless, workerSettings) {
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const targetHeader = proxyless ? PROXYLESS_HEADER : HEADER;
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const header = targetHeader
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.replace(STRICT_MODE_PLACEHOLDER, isStrictMode ? '"use strict";' : '')
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.replace(SW_SCOPE_HEADER_VALUE, swScopeHeaderValue ? `var ${instruction_1.default.swScopeHeaderValue} = ${(0, json_1.stringify)(swScopeHeaderValue)};` : '')
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.replace(WORKER_SETTINGS_PLACEHOLDER, workerSettings ? JSON.stringify(workerSettings) : 'null');
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return header + code + '\n' + exports.SCRIPT_PROCESSING_END_COMMENT;
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}
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exports.add = add;
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