sgapps-server

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>prototypes/server/extend/request-postdata.js - SGApps Server - Framework</title> <meta name="description" content="SGApps Server for high performance results" /> <meta name="keywords" content="javascript, js, application-prototype, prototype" /> <meta name="keyword" content="javascript, js, application-prototype, prototype" /> <meta property="og:title" content="SGApps Server - Framework"/> <meta property="og:type" content="website"/> <meta property="og:image" content=""/> <meta property="og:url" content="https://labs.sgapps.io/open-source/sgapps-server"/> <script src="scripts/prettify/prettify.js"></script> <script src="scripts/prettify/lang-css.js"></script>  <link type="text/css" rel="stylesheet" href="styles/prettify.css"> <link type="text/css" rel="stylesheet" href="styles/jsdoc.css"> <script src="scripts/nav.js" defer></script> <meta name="viewport" content="width=device-width, initial-scale=1.0"> </head> <body> 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href="SGAppsServerRequest.html#_parseDeepFieldName">_parseDeepFieldName</a></li><li data-type='method' style='display: none;'><a href="SGAppsServerRequest.html#getMountUpdatedUrl">getMountUpdatedUrl</a></li></ul></li><li><a href="SGAppsServerRequestCookie.html">SGAppsServerRequestCookie</a><ul class='methods'><li data-type='method' style='display: none;'><a href="SGAppsServerRequestCookie.html#get">get</a></li><li data-type='method' style='display: none;'><a href="SGAppsServerRequestCookie.html#set">set</a></li></ul></li><li><a href="SGAppsServerRequestSession.html">SGAppsServerRequestSession</a><ul class='methods'><li data-type='method' style='display: none;'><a href="SGAppsServerRequestSession.html#destroy">destroy</a></li></ul></li><li><a href="SGAppsServerResponse.html">SGAppsServerResponse</a><ul class='methods'><li data-type='method' style='display: none;'><a href="SGAppsServerResponse.html#pipeFile">pipeFile</a></li><li data-type='method' style='display: none;'><a 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class='methods'><li data-type='method' style='display: none;'><a href="TemplateManager.html#add">add</a></li><li data-type='method' style='display: none;'><a href="TemplateManager.html#addList">addList</a></li><li data-type='method' style='display: none;'><a href="TemplateManager.html#get">get</a></li><li data-type='method' style='display: none;'><a href="TemplateManager.html#remove">remove</a></li><li data-type='method' style='display: none;'><a href="TemplateManager.html#render">render</a></li><li data-type='method' style='display: none;'><a href="TemplateManager.html#templateExists">templateExists</a></li></ul></li><li><a href="TemplateManagerViewer.html">TemplateManagerViewer</a><ul class='methods'><li data-type='method' style='display: none;'><a href="TemplateManagerViewer.html#render">render</a></li><li data-type='method' style='display: none;'><a href="TemplateManagerViewer.html#renderCode">renderCode</a></li></ul></li></ul><h3>Global</h3><ul><li><a href="global.html#LoggerBuilderPrompt">LoggerBuilderPrompt</a></li><li><a href="global.html#MountUpdatedURL">MountUpdatedURL</a></li><li><a href="global.html#RequestHandler">RequestHandler</a></li><li><a href="global.html#RequestPathStructure">RequestPathStructure</a></li><li><a href="global.html#RequestPathStructureMap">RequestPathStructureMap</a></li><li><a href="global.html#RequestSessionDecorator">RequestSessionDecorator</a></li><li><a href="global.html#ResourcesExtensions">ResourcesExtensions</a></li><li><a href="global.html#routeMatch">routeMatch</a></li><li><a href="global.html#SGAppsServerDecorator">SGAppsServerDecorator</a></li><li><a href="global.html#SGAppsServerDictionaryRunCallBack">SGAppsServerDictionaryRunCallBack</a></li><li><a href="global.html#SGAppsServerErrorCallBack">SGAppsServerErrorCallBack</a></li><li><a href="global.html#SGAppsServerErrorOnlyCallback">SGAppsServerErrorOnlyCallback</a></li><li><a href="global.html#SGAppsServerHandlerPostData">SGAppsServerHandlerPostData</a></li><li><a href="global.html#SGAppsServerOptions">SGAppsServerOptions</a></li><li><a href="global.html#SGAppsServerRequestFile">SGAppsServerRequestFile</a></li><li><a href="global.html#SGAppsServerRequestPostDataItem">SGAppsServerRequestPostDataItem</a></li><li><a href="global.html#SGAppsServerRequestSessionCache">SGAppsServerRequestSessionCache</a></li><li><a href="global.html#SGAppsSessionManagerOptions">SGAppsSessionManagerOptions</a></li><li><a href="global.html#TemplateManagerRenderOptions">TemplateManagerRenderOptions</a></li><li><a href="global.html#TemplateManagerTemplate">TemplateManagerTemplate</a></li></ul> </nav> <div id="main"> <h1 class="page-title">prototypes/server/extend/request-postdata.js</h1> <section> <article> <pre class="prettyprint source linenums"><code>const ePrototype = require("application-prototype/constructors/extensions/prototype"); const Busboy = require("busboy"); const { ServerResponse } = require("http"); const { Stream, Readable } = require("stream"); /** * @private * @method RequestUrlDecorator * @param {SGAppsServerRequest} request * @param {SGAppsServerResponse} response * @param {SGAppsServer} server * @param {function} callback */ module.exports = function RequestUrlDecorator(request, response, server, callback) { if (request === null || response === null) { callback(); return; } /** * post data buffer cache * @memberof SGAppsServerRequest# * @name _postDataBuffer * @type {Buffer} */ request._postDataBuffer = Buffer.from('', 'binary'); /** * @typedef {object} SGAppsServerRequestFile * @property {string} fieldName field's name * @property {object} data * @property {string} data.fileName file's name `[duplicate]` * @property {string} data.encoding file's encoding * @property {Readable} data.fileStream () => fileStream * @property {Buffer} data.fileData * @property {number} data.fileSize size in bytes * @property {string} data.contentType file's mimeType * @property {boolean} data.loaded indicate if file is fully loaded into `fileData` */ /** * @typedef {object} SGAppsServerRequestPostDataItem * @property {string} fieldName field's name * @property {object} data * @property {string} data.value * @property {string} data.encoding file's encoding * @property {string} data.valTruncated * @property {Buffer} data.fieldNameTruncated * @property {string} data.mimeType file's mimeType */ let _body = {}; let _bodyItems = []; /** * @memberof SGAppsServerRequest# * @name body * @type {object} */ Object.defineProperty(request, 'body', { get: () => _body, set: () => server.logger.warn("[Request.body] is not configurable"), enumerable: true, configurable: true }); /** * @memberof SGAppsServerRequest# * @name bodyItems * @type {SGAppsServerRequestPostDataItem[]} */ Object.defineProperty(request, 'bodyItems', { get: () => _bodyItems, set: () => server.logger.warn("[Request.bodyItems] is not configurable"), enumerable: true, configurable: true }); /** * @memberof SGAppsServerRequest# * @name files * @type {Object<string,SGAppsServerRequestFile[]>} */ let _files = {}; Object.defineProperty(request, 'files', { get: () => _files, set: () => server.logger.warn("[Request.files] is not configurable"), enumerable: true, configurable: true }); /** * @memberof SGAppsServerRequest# * @name fileItems * @type {SGAppsServerRequestFile[]} */ let _fileItems = []; Object.defineProperty(request, 'fileItems', { get: () => _fileItems, set: () => server.logger.warn("[Request.fileItems] is not configurable"), enumerable: true, configurable: true }); /** * Automatically used procedure for parsing formData field name if option `server._options._REQUEST_FORM_PARAMS_DEEP_PARSE = true`. it's by default enabled but can be disabled when needed * @memberof SGAppsServerRequest# * @method _parseDeepFieldName * @param {object} container * @param {string} fieldName * @param {any} fieldData * @param {object} [options] * @param {boolean} [options.transform2ArrayOnDuplicate=false] * @example * paramsContainer = {}; * request._parseDeepFieldName(paramsContainer, 'test[arr][data]', 2); * request._parseDeepFieldName(paramsContainer, 'test[arr][]', new Date()); * request._parseDeepFieldName(paramsContainer, 'test[arr][]', 2); * request._parseDeepFieldName(paramsContainer, 'test[data]', 2); * // if _debug enabled warns will be emitted * // [Warn] [Request._parseDeepFieldName] Writing Array field "test[arr][]" into a object * // [Warn] [Request._parseDeepFieldName] Overwriting field "test[data]" value * console.log(paramsContainer) * { * "test": { * "arr": { * "1": "2021-02-12T21:23:01.913Z", * "2": 2, * "data": 2 * }, * "data": 2 * } * } * @example * paramsContainer = {}; * request._parseDeepFieldName(paramsContainer, 'test[arr][]', new Date()); * request._parseDeepFieldName(paramsContainer, 'test[arr][]', 2); * request._parseDeepFieldName(paramsContainer, 'test[arr][data]', 2); * request._parseDeepFieldName(paramsContainer, 'test[data]', 2); * // if _debug enabled warns will be emitted * // [Warn] [Request._parseDeepFieldName] Converting array to object due incorrect field "test[arr][data]" name * console.log(paramsContainer) * { * "test": { * "arr": { * "0": "2021-02-12T21:34:47.359Z", * "1": 2, * "data": 2 * }, * "data": 2 * } * } * @example * paramsContainer = {}; * request._parseDeepFieldName(paramsContainer, 'test[arr][]', new Date()); * request._parseDeepFieldName(paramsContainer, 'test[arr][]', 2); * request._parseDeepFieldName(paramsContainer, 'test[data]', 2); * console.log(paramsContainer) * { * "test": { * "arr": [ * "2021-02-12T21:26:43.766Z", * 2 * ], * "data": 2 * } * } */ request._parseDeepFieldName = (container, fieldName, fieldData, options) => { if (!fieldName[0] || fieldName[0] === '[') { console.warn( `[Warn] [Request._parseDeepFieldName] Unable to parse fieldName without base`, { container, fieldName, fieldData } ); return; } let fieldNamePrefix = fieldName.replace(/\[.*$/, ''); container[fieldNamePrefix] = container[fieldNamePrefix] || {}; let p = container[fieldNamePrefix]; let pPrev = container; const _debug = server.logger._debug; const parts = fieldName .match(/\[[^\[]*\]/g); if (!parts) { if (fieldNamePrefix in container) { if (_debug) { server.logger.warn( `[Warn] [Request._parseDeepFieldName] Overwriting field "${fieldName}" value`, { container, fieldName, fieldData } ); } } container[fieldNamePrefix] = fieldData; return; } parts .map(v => v.replace(/^\[([^\]]*)\]$/, '$1')) .forEach((k, i, a) => { if (p && typeof (p) === "object") { if (i === a.length - 1) { if (k === '') { if (pPrev) { const prevIndex = i ? a[i - 1] : fieldNamePrefix; if (!Array.isArray(pPrev[prevIndex])) { if (prevIndex in pPrev) { if (pPrev[prevIndex] && typeof (pPrev[prevIndex]) === "object") { const index = Object.keys(pPrev[prevIndex]).length; if (index === 0) { pPrev[prevIndex] = []; pPrev[prevIndex].push(fieldData); } else { if (_debug) { server.logger.warn( `[Warn] [Request._parseDeepFieldName] Writing Array field "${fieldName}" into a object`, { container, fieldName, fieldData } ); } if (index in pPrev[prevIndex]) { if (_debug) { server.logger.warn( `[Warn] [Request._parseDeepFieldName] Overwriting field "${fieldName}" value`, { container, fieldName, fieldData } ); } } pPrev[prevIndex][index] = fieldData; } } else { pPrev[prevIndex] = []; pPrev[prevIndex].push(fieldData); } } else { pPrev[prevIndex] = []; pPrev[prevIndex].push(fieldData); } } else { pPrev[prevIndex].push(fieldData); } } else { if (_debug) { console.warn( `[Warn] [Request._parseDeepFieldName] Unable to parse intermediary array index "[]"`, { container, fieldName, fieldData } ); } p = null; } } else { if (k in p) { if (_debug) { console.warn( `[Warn] [Request._parseDeepFieldName] Overwriting field "${fieldName}" value`, { container, fieldName, fieldData } ); } } else { if (Array.isArray(p)) { if (k.match(/^\d+$/)) { if (p[k] === undefined) { p[k] = fieldData; } else { if (_debug) { server.logger.warn( `[Warn] [Request._parseDeepFieldName] Overwriting field "${fieldName}" value`, { container, fieldName, fieldData } ); } p[k] = fieldData; } } else { if (_debug) { server.logger.warn( `[Warn] [Request._parseDeepFieldName] Converting array to object due incorrect field "${fieldName}" name`, { container, fieldName, fieldData } ); } const prevIndex = i ? a[i - 1] : fieldNamePrefix; pPrev[prevIndex] = Object.assign({}, p); pPrev[prevIndex][k] = fieldData; } } else { p[k] = fieldData; } } } } else { if (k === '') { if (_debug) { server.logger.warn( `[Warn] [Request._parseDeepFieldName] Unable to parse intermediary array index "[]"`, { container, fieldName, fieldData } ); } p = null; } else { p[k] = p[k] || {}; pPrev = p; p = p[k]; } } } else { if (p !== null) { p = null; if (_debug) { server.logger.warn( `[Warn] [Request._parseDeepFieldName] Unable to parse Request params. Setting field "${fieldName}" in structure`, { container, fieldName, fieldData } ); } } } }); }; /** * request's post received data * @memberof SGAppsServerRequest# * @name postData * @type {Promise<Buffer>} */ let _postData = null; Object.defineProperty( request, 'postData', { get: () => { if (_postData) return _postData; _postData = new Promise(function (resolve, reject) { let _postDataSize = 0; let _canceled = false; request.request.on("data", function (chunk) { if (_canceled) return; if (request.request.aborted) return; var dataLimit = request.MAX_POST_SIZE; if (dataLimit < _postDataSize) { _canceled = true; const err = Error('[Request.MAX_POST_SIZE] exceeded'); server.logger.error(err); reject(err); return; } request._postDataBuffer = Buffer.concat([request._postDataBuffer, chunk]); _postDataSize += chunk.length; }); request.request.once("error", function (err) { if (_canceled) return; server.logger.error(err); _canceled = true; reject(err); }); request.request.once("abort", function () { if (_canceled) return; const err = Error('[Request] aborted'); server.logger.error(err); _canceled = true; reject(err); }); request.request.once('end', function () { if (_canceled) return; if ( ( request.request.headers['content-type'] || '' ).indexOf('multipart/form-data') === 0 ) { let Readable = require('stream').Readable; let readable = new Readable(); readable._read = () => {}; // _read is required but you can noop it readable.push(request._postDataBuffer); readable.push(null); var detectedBoundary = ( request._postDataBuffer .slice(0, 1024).toString() .match(/^\-\-(\-{4,}[A-Za-z0-9]{4,}\-*)(\r|)\n/) || [] )[1] || null; if (detectedBoundary) { var calculatedHeader = 'multipart/form-data; boundary=' + detectedBoundary; if ( calculatedHeader !== request.request.headers['content-type'] ) { server.logger.warn( "Multipart Form Data: boundary replaced from ", request.request.headers['content-type'], calculatedHeader ); } request.request.headers['content-type'] = calculatedHeader; } /** * @private * @type {Readable} */ //@ts-ignore const busboy = new Busboy({ headers: request.request.headers, limits: { fieldNameSize: 255, fieldSize: request.MAX_POST_SIZE, fileSize: request.MAX_POST_SIZE } }); busboy.on( 'file', /** * @inner * @param {string} fieldName * @param {Readable} fileStream * @param {string} fileName * @param {string} encoding * @param {string} mimeType */ function ( fieldName, fileStream, fileName, encoding, mimeType ) { const file = { fieldName: fieldName, data: { fileName: fileName, encoding: encoding, fileStream: () => fileStream, fileData: null, fileSize: 0, contentType: mimeType, loaded: false } }; //@ts-ignore _fileItems.push(file); if (server._options._REQUEST_FORM_PARAMS_DEEP_PARSE) { request._parseDeepFieldName( _files, fieldName, file ); } else { if (!(fieldName in _files)) _files[fieldName] = []; //@ts-ignore _files[fieldName].push(file); } fileStream.on('data', function (data) { file.data.fileData.push(data); file.data.fileSize += data.length; }); fileStream.on('error', function (err) { file.data.error = err; server.logger.error(err); }); fileStream.on('end', function () { file.data.fileData = Buffer.concat(file.data.fileData); if (!file.data.error) file.data.loaded = true; }); } ); busboy.on('field', function (fieldName, value, fieldNameTruncated, valTruncated, encoding, mimeType) { // console.warn("BusBoy Field", arguments); _bodyItems.push({ fieldName: fieldName, data: { value: value, fieldNameTruncated: fieldNameTruncated, valTruncated: valTruncated, encoding: encoding, mimeType: mimeType } }); if (server._options._REQUEST_FORM_PARAMS_DEEP_PARSE) { request._parseDeepFieldName( _body, fieldName, value ); } else { _body[fieldName] = value; } }); busboy.on('error', function (err) { server.logger.error(err); reject(err); }); busboy.on('finish', function () { resolve(request._postDataBuffer); var err; try { readable.destroy(); } catch (err) {}; try { busboy.destroy(); } catch (err) {}; }); //@ts-ignore readable.pipe(busboy); // consume the Stream } else { if ( ( ( request.request.headers['content-type'] || '' ) || '' ).indexOf('application/json') === 0 ) { const data = request._postDataBuffer.toString('utf-8', 0, request._postDataBuffer.length); try { const jsonData = JSON.parse(data); if (jsonData && typeof(jsonData) === "object") { Object.assign(_body, jsonData); } } catch (err) { if (server.logger._debug) { server.logger.warn(`[Request._body] Unable to parse JSON data`); } } } else if ( ( ( request.request.headers['content-type'] || '' ) || '' ).indexOf('application/x-www-form-urlencoded') === 0 ) { const data = request._postDataBuffer.toString('utf-8', 0, request._postDataBuffer.length); //@ts-ignore try { const formData = data.parseUrlVars(true); if (formData && typeof(formData) === "object") { Object.assign(_body, formData); } } catch (err) { if (server.logger._debug) { server.logger.warn(`[Request._body] Unable to parse URL Formed Data data`); } } } resolve(request._postDataBuffer); } }); }); return _postData; }, set: (v) => { server.logger.warn('[Request.postData] is not writeable'); } } ); // response._destroy.push(function () { // _postData = null; // _body = null; // _bodyItems = null; // _fileItems = null; // _files = null; // delete request._parseDeepFieldName; // delete request._postDataBuffer; // delete request.postData; // }); callback(); }; </code></pre> </article> </section> </div> <br class="clear"> <footer> Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.6.5</a> using the <a href="https://github.com/clenemt/docdash">docdash</a> theme. </footer> <script>prettyPrint();</script> <script src="scripts/polyfill.js"></script> <script src="scripts/linenumber.js"></script> <script src="scripts/search.js" defer></script> <script src="scripts/collapse.js" defer></script> <script src="https://sgapps.io/components/sgapps-labs-examples/toolbar/loader.js"></script> </body> </html>