144 lines
5.8 KiB
JavaScript
144 lines
5.8 KiB
JavaScript
"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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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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const internal_attributes_1 = __importDefault(require("../processing/dom/internal-attributes"));
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const form_data_entry_1 = __importDefault(require("./form-data-entry"));
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const bufferUtils = __importStar(require("../utils/buffer"));
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const json_1 = require("../utils/json");
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const BOUNDARY_RE = /;\s*boundary=([^;]*)/i;
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var ParserState;
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(function (ParserState) {
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ParserState[ParserState["inPreamble"] = 0] = "inPreamble";
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ParserState[ParserState["inHeaders"] = 1] = "inHeaders";
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ParserState[ParserState["inBody"] = 2] = "inBody";
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ParserState[ParserState["inEpilogue"] = 3] = "inEpilogue";
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})(ParserState || (ParserState = {}));
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class FormData {
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constructor() {
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this.boundary = null;
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this._boundaryEnd = null;
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this._epilogue = [];
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this._entries = [];
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this._preamble = [];
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}
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_removeEntry(name) {
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this._entries = this._entries.filter(entry => entry.name !== name);
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}
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_injectFileInfo(fileInfo) {
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const entries = this._getEntriesByName(fileInfo.name);
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let previousEntry = null;
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for (let idx = 0; idx < fileInfo.files.length; idx++) {
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let entry = entries[idx];
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if (!entry) {
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entry = previousEntry ? previousEntry.cloneWithRawHeaders() : new form_data_entry_1.default();
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this._entries.push(entry);
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}
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previousEntry = entry;
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entry.addFileInfo(fileInfo, idx);
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}
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}
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_isBoundary(line) {
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return this.boundary.equals(line);
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}
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_isBoundaryEnd(line) {
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return this._boundaryEnd.equals(line);
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}
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_getEntriesByName(name) {
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return this._entries.reduce((found, entry) => {
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if (entry.name === name)
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found.push(entry);
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return found;
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}, []);
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}
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expandUploads() {
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const uploadsEntry = this._getEntriesByName(internal_attributes_1.default.uploadInfoHiddenInputName)[0];
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if (uploadsEntry) {
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const body = Buffer.concat(uploadsEntry.body).toString();
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const files = (0, json_1.parse)(body);
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this._removeEntry(internal_attributes_1.default.uploadInfoHiddenInputName);
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files.forEach(fileInfo => this._injectFileInfo(fileInfo));
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}
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}
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parseContentTypeHeader(header) {
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header = String(header);
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if (header.includes('multipart/form-data')) {
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const boundaryMatch = header.match(BOUNDARY_RE);
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const token = boundaryMatch && boundaryMatch[1];
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if (token) {
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this.boundary = Buffer.from('--' + token);
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this._boundaryEnd = Buffer.from('--' + token + '--');
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}
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}
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}
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parseBody(body) {
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let state = ParserState.inPreamble;
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const lines = bufferUtils.createLineIterator(body);
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let currentEntry = null;
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for (const line of lines) {
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if (this._isBoundary(line)) {
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if (currentEntry)
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this._entries.push(currentEntry);
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state = ParserState.inHeaders;
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currentEntry = new form_data_entry_1.default();
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}
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else if (this._isBoundaryEnd(line)) {
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if (currentEntry)
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this._entries.push(currentEntry);
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state = ParserState.inEpilogue;
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}
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else if (state === ParserState.inPreamble)
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bufferUtils.appendLine(this._preamble, line);
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else if (state === ParserState.inHeaders) {
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if (line.length)
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currentEntry === null || currentEntry === void 0 ? void 0 : currentEntry.setRawHeader(line.toString()); // eslint-disable-line no-unused-expressions
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else
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state = ParserState.inBody;
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}
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else if (state === ParserState.inEpilogue)
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bufferUtils.appendLine(this._epilogue, line);
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else if (state === ParserState.inBody && currentEntry)
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bufferUtils.appendLine(currentEntry.body, line);
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}
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}
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toBuffer() {
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if (!this._boundaryEnd || !this.boundary)
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return null;
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let chunks = this._preamble;
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if (chunks.length)
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chunks.push(bufferUtils.CRLF);
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for (const entry of this._entries) {
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chunks.push(this.boundary, bufferUtils.CRLF, entry.toBuffer(), bufferUtils.CRLF);
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}
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chunks.push(this._boundaryEnd, bufferUtils.CRLF);
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chunks = chunks.concat(this._epilogue);
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return Buffer.concat(chunks);
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}
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}
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exports.default = FormData;module.exports = exports.default;
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