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Merge pull request #4 from TryxAPI/jan5-requirements
Fixes tests.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,210 @@ | ||
| (function (module, S) { | ||
| 'use strict'; | ||
|
|
||
| var headerParts = [ | ||
| { | ||
| field: 'contentType', | ||
| fn: function (part) { | ||
| var s = S(part.toLowerCase()); | ||
|
|
||
| var match; | ||
| if (s.startsWith('content-type:')) { | ||
| var type = part.substring('content-type:'.length).trim(); | ||
| var regExp = new RegExp('\\w+\/[\\w.\\-\\+]+'); | ||
| var matches = regExp.exec(type); | ||
| if (Array.isArray(matches)) { | ||
| match = matches[0]; | ||
| } | ||
| } | ||
| return match; | ||
| } | ||
| }, | ||
| { | ||
| field: 'boundary', | ||
| fn: function (part) { | ||
| var s = S(part); | ||
|
|
||
| var match; | ||
| if (s.contains('boundary=')) { | ||
| var index = s.toString().indexOf('boundary='); | ||
| var indexSemicolon = s.toString().indexOf(';', index); | ||
| var endIndex = (indexSemicolon < 0 ? s.toString().length : indexSemicolon); | ||
| match = part.substring(index + 'boundary='.length, endIndex); | ||
| } | ||
| return match; | ||
| } | ||
| }, | ||
| { | ||
| field: 'contentTransferEncoding', | ||
| fn: function (part) { | ||
| var s = S(part.toLowerCase()); | ||
|
|
||
| var match; | ||
| if (s.startsWith('content-transfer-encoding:')) { | ||
| match = part.substring('content-transfer-encoding:'.length).trim(); | ||
| } | ||
| return match; | ||
| } | ||
| }, | ||
| { | ||
| field: 'contentDisposition', | ||
| fn: function (part) { | ||
| var s = S(part.toLowerCase()); | ||
|
|
||
| var match; | ||
| if (s.startsWith('content-disposition:')) { | ||
| var type = part.substring('content-disposition:'.length).trim(); | ||
| var regExp = new RegExp('\\w+'); | ||
| var matches = regExp.exec(type); | ||
| if (Array.isArray(matches)) { | ||
| match = matches[0]; | ||
| } | ||
| } | ||
| return match; | ||
| } | ||
| }, | ||
| { | ||
| field: 'filename', | ||
| fn: function (part) { | ||
| var s = S(part.toLowerCase()); | ||
|
|
||
| var match; | ||
| if (s.startsWith('content-disposition:') && s.contains('filename="')) { | ||
| var index = s.toString().indexOf('filename="'); | ||
| var filename = part.substring(index + 'filename="'.length); | ||
|
|
||
| var regExp = new RegExp('[\\w\\W+\\w+][^"]+'); | ||
| var matches = regExp.exec(filename); | ||
| if (Array.isArray(matches)) { | ||
| match = matches[0]; | ||
| } | ||
| } | ||
| return match; | ||
| } | ||
| } | ||
| ]; | ||
|
|
||
| function findDelimiter(content) { | ||
| var delimiter; // Delimiter for Windows, Linux, Mac | ||
| if (S(content).startsWith('\r\n')) { | ||
| delimiter = '\r\n'; | ||
| } else if (S(content).startsWith('\r')) { | ||
| delimiter = '\r'; | ||
| } else if (S(content).startsWith('\n')) { | ||
| delimiter = '\n'; | ||
| } else { | ||
| throw new Error('Multipart: unknown delimiter.'); | ||
| } | ||
| return delimiter; | ||
| } | ||
|
|
||
| function parsePart(delimiter, content) { | ||
| var parsed = {}; | ||
| parsed.header = parseHeader(delimiter, content); | ||
|
|
||
| var index = content.indexOf(delimiter + delimiter); | ||
| parsed.body = content.substring(index + (delimiter.length * 2), content.length - delimiter.length); | ||
| return parsed; | ||
| } | ||
|
|
||
| function parseHeader(delimiter, content) { | ||
| var regExp = new RegExp(delimiter); | ||
| var parts = content.split(regExp); | ||
|
|
||
| var header = {parts: []}; | ||
| if (parts.length < 2) { | ||
| throw new Error('Multipart: cannot parse header with invalid length.'); | ||
| } else if (!S(parts[0]).isEmpty()) { | ||
| throw new Error('Multipart: cannot parse header with invalid value.'); | ||
| } else if (S(parts[0]).isEmpty() && S(parts[1]).isEmpty()) { | ||
| header.parts.push('Content-Type: text/plain'); | ||
| header.contentType = 'text/plain'; | ||
| return header; | ||
| } | ||
|
|
||
| for (var i = 1; i < parts.length; i++) { | ||
| var part = parts[i]; | ||
| if (S(part).isEmpty()) { | ||
| return header; | ||
| } else { | ||
| parseHeaderParts(header, part); | ||
| header.parts.push(part); | ||
| } | ||
| } | ||
| return header; | ||
| } | ||
|
|
||
| function parseHeaderParts(header, part) { | ||
| headerParts.forEach(function (one) { | ||
| var value = one.fn(part); | ||
| if (value) { | ||
| header[one.field] = value; | ||
| } | ||
| }); | ||
| } | ||
|
|
||
|
|
||
| /** | ||
| * Searches in string to find boundary. | ||
| * @param {String} string - String to search | ||
| * @return {String} | ||
| */ | ||
| module.exports.getBoundary = function getBoundary(string) { | ||
| var boundary = ''; | ||
|
|
||
| for (var i = 0; i < headerParts.length; i++) { | ||
| var header = headerParts[i]; | ||
|
|
||
| if (header.field === 'boundary') { | ||
| boundary = header.fn(string); | ||
| break; | ||
| } | ||
| } | ||
| return boundary; | ||
| }; | ||
|
|
||
| /** | ||
| * Parses multipart/mixed content (http://www.w3.org/Protocols/rfc1341/7_2_Multipart.html). This does not parse streams. | ||
| * | ||
| * { | ||
| * header; { | ||
| * parts: ['each header line since not all are mapped'], | ||
| * contentType: 'extracted Content-Type', | ||
| * contentTransferEncoding: 'extracted Content-Transfer-Encoding', | ||
| * contentDisposition: 'extracted Content-Disposition', | ||
| * filename: 'extracted filename' | ||
| * } | ||
| * body: 'extracted body from part' | ||
| * } | ||
| * | ||
| * @param {String} boundary - Boundary defined in header | ||
| * @param {String} body - Request body | ||
| */ | ||
| module.exports.parseMultipart = function parseMultipart(boundary, body) { | ||
| var dashedBoundary = '--' + boundary; | ||
| var index = body.indexOf(dashedBoundary); | ||
| if (index < 0) { | ||
| throw new Error('Multipart: boundary not found.'); | ||
| } | ||
|
|
||
| var delimiter = findDelimiter(body.substring(index + dashedBoundary.length)); | ||
|
|
||
| var regExp = new RegExp('--*' + boundary); | ||
| var contents = body.split(regExp); | ||
|
|
||
| var parts = []; | ||
| var lastBoundary = false; | ||
| for (var i = 1; i < contents.length; i++) { | ||
| var content = contents[i]; | ||
|
|
||
| if (S(content).startsWith('--' + delimiter) || S(content).startsWith('--')) { | ||
| lastBoundary = true; | ||
| } | ||
|
|
||
| if (!lastBoundary) { | ||
| parts.push(parsePart(delimiter, content)); | ||
| } | ||
| } | ||
| return parts; | ||
| }; | ||
| }(module, require('string'))); |
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