158 lines
5.8 KiB
JavaScript
158 lines
5.8 KiB
JavaScript
"use strict";
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var __create = Object.create;
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var __defProp = Object.defineProperty;
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var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
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var __getOwnPropNames = Object.getOwnPropertyNames;
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var __getProtoOf = Object.getPrototypeOf;
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var __hasOwnProp = Object.prototype.hasOwnProperty;
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var __export = (target, all) => {
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for (var name in all)
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__defProp(target, name, { get: all[name], enumerable: true });
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};
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var __copyProps = (to, from, except, desc) => {
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if (from && typeof from === "object" || typeof from === "function") {
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for (let key of __getOwnPropNames(from))
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if (!__hasOwnProp.call(to, key) && key !== except)
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__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
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}
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return to;
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};
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var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
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// If the importer is in node compatibility mode or this is not an ESM
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// file that has been converted to a CommonJS file using a Babel-
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// compatible transform (i.e. "__esModule" has not been set), then set
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// "default" to the CommonJS "module.exports" for node compatibility.
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isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
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mod
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));
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var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
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var harBackend_exports = {};
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__export(harBackend_exports, {
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HarBackend: () => HarBackend
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});
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module.exports = __toCommonJS(harBackend_exports);
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var import_fs = __toESM(require("fs"));
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var import_path = __toESM(require("path"));
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var import_crypto = require("./utils/crypto");
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const redirectStatus = [301, 302, 303, 307, 308];
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class HarBackend {
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constructor(harFile, baseDir, zipFile) {
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this.id = (0, import_crypto.createGuid)();
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this._harFile = harFile;
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this._baseDir = baseDir;
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this._zipFile = zipFile;
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}
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async lookup(url, method, headers, postData, isNavigationRequest) {
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let entry;
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try {
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entry = await this._harFindResponse(url, method, headers, postData);
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} catch (e) {
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return { action: "error", message: "HAR error: " + e.message };
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}
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if (!entry)
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return { action: "noentry" };
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if (entry.request.url !== url && isNavigationRequest)
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return { action: "redirect", redirectURL: entry.request.url };
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const response = entry.response;
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try {
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const buffer = await this._loadContent(response.content);
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return {
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action: "fulfill",
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status: response.status,
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headers: response.headers,
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body: buffer
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};
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} catch (e) {
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return { action: "error", message: e.message };
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}
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}
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async _loadContent(content) {
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const file = content._file;
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let buffer;
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if (file) {
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if (this._zipFile)
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buffer = await this._zipFile.read(file);
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else
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buffer = await import_fs.default.promises.readFile(import_path.default.resolve(this._baseDir, file));
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} else {
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buffer = Buffer.from(content.text || "", content.encoding === "base64" ? "base64" : "utf-8");
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}
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return buffer;
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}
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async _harFindResponse(url, method, headers, postData) {
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const harLog = this._harFile.log;
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const visited = /* @__PURE__ */ new Set();
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while (true) {
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const entries = [];
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for (const candidate of harLog.entries) {
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if (candidate.request.url !== url || candidate.request.method !== method)
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continue;
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if (method === "POST" && postData && candidate.request.postData) {
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const buffer = await this._loadContent(candidate.request.postData);
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if (!buffer.equals(postData)) {
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const boundary = multipartBoundary(headers);
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if (!boundary)
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continue;
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const candidataBoundary = multipartBoundary(candidate.request.headers);
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if (!candidataBoundary)
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continue;
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if (postData.toString().replaceAll(boundary, "") !== buffer.toString().replaceAll(candidataBoundary, ""))
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continue;
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}
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}
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entries.push(candidate);
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}
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if (!entries.length)
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return;
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let entry = entries[0];
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if (entries.length > 1) {
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const list = [];
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for (const candidate of entries) {
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const matchingHeaders = countMatchingHeaders(candidate.request.headers, headers);
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list.push({ candidate, matchingHeaders });
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}
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list.sort((a, b) => b.matchingHeaders - a.matchingHeaders);
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entry = list[0].candidate;
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}
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if (visited.has(entry))
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throw new Error(`Found redirect cycle for ${url}`);
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visited.add(entry);
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const locationHeader = entry.response.headers.find((h) => h.name.toLowerCase() === "location");
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if (redirectStatus.includes(entry.response.status) && locationHeader) {
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const locationURL = new URL(locationHeader.value, url);
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url = locationURL.toString();
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if ((entry.response.status === 301 || entry.response.status === 302) && method === "POST" || entry.response.status === 303 && !["GET", "HEAD"].includes(method)) {
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method = "GET";
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}
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continue;
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}
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return entry;
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}
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}
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dispose() {
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this._zipFile?.close();
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}
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}
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function countMatchingHeaders(harHeaders, headers) {
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const set = new Set(headers.map((h) => h.name.toLowerCase() + ":" + h.value));
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let matches = 0;
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for (const h of harHeaders) {
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if (set.has(h.name.toLowerCase() + ":" + h.value))
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++matches;
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}
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return matches;
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}
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function multipartBoundary(headers) {
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const contentType = headers.find((h) => h.name.toLowerCase() === "content-type");
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if (!contentType?.value.includes("multipart/form-data"))
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return void 0;
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const boundary = contentType.value.match(/boundary=(\S+)/);
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if (boundary)
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return boundary[1];
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return void 0;
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}
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// Annotate the CommonJS export names for ESM import in node:
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0 && (module.exports = {
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HarBackend
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});
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