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Diffstat (limited to 'common/src/main/webapp/usage guide/appserver/node_modules/body-parser/lib/read.js')
-rw-r--r-- | common/src/main/webapp/usage guide/appserver/node_modules/body-parser/lib/read.js | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/common/src/main/webapp/usage guide/appserver/node_modules/body-parser/lib/read.js b/common/src/main/webapp/usage guide/appserver/node_modules/body-parser/lib/read.js new file mode 100644 index 00000000..3c0fe936 --- /dev/null +++ b/common/src/main/webapp/usage guide/appserver/node_modules/body-parser/lib/read.js @@ -0,0 +1,188 @@ +/*! + * body-parser + * Copyright(c) 2014-2015 Douglas Christopher Wilson + * MIT Licensed + */ + +'use strict' + +/** + * Module dependencies. + * @private + */ + +var createError = require('http-errors') +var getBody = require('raw-body') +var iconv = require('iconv-lite') +var onFinished = require('on-finished') +var zlib = require('zlib') + +/** + * Module exports. + */ + +module.exports = read + +/** + * Read a request into a buffer and parse. + * + * @param {object} req + * @param {object} res + * @param {function} next + * @param {function} parse + * @param {function} debug + * @param {object} [options] + * @api private + */ + +function read (req, res, next, parse, debug, options) { + var length + var opts = options || {} + var stream + + // flag as parsed + req._body = true + + // read options + var encoding = opts.encoding !== null + ? opts.encoding || 'utf-8' + : null + var verify = opts.verify + + try { + // get the content stream + stream = contentstream(req, debug, opts.inflate) + length = stream.length + stream.length = undefined + } catch (err) { + return next(err) + } + + // set raw-body options + opts.length = length + opts.encoding = verify + ? null + : encoding + + // assert charset is supported + if (opts.encoding === null && encoding !== null && !iconv.encodingExists(encoding)) { + return next(createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', { + charset: encoding.toLowerCase() + })) + } + + // read body + debug('read body') + getBody(stream, opts, function (err, body) { + if (err) { + // default to 400 + setErrorStatus(err, 400) + + // echo back charset + if (err.type === 'encoding.unsupported') { + err = createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', { + charset: encoding.toLowerCase() + }) + } + + // read off entire request + stream.resume() + onFinished(req, function onfinished () { + next(err) + }) + return + } + + // verify + if (verify) { + try { + debug('verify body') + verify(req, res, body, encoding) + } catch (err) { + // default to 403 + setErrorStatus(err, 403) + next(err) + return + } + } + + // parse + var str + try { + debug('parse body') + str = typeof body !== 'string' && encoding !== null + ? iconv.decode(body, encoding) + : body + req.body = parse(str) + } catch (err) { + err.body = str === undefined + ? body + : str + + // default to 400 + setErrorStatus(err, 400) + + next(err) + return + } + + next() + }) +} + +/** + * Get the content stream of the request. + * + * @param {object} req + * @param {function} debug + * @param {boolean} [inflate=true] + * @return {object} + * @api private + */ + +function contentstream (req, debug, inflate) { + var encoding = (req.headers['content-encoding'] || 'identity').toLowerCase() + var length = req.headers['content-length'] + var stream + + debug('content-encoding "%s"', encoding) + + if (inflate === false && encoding !== 'identity') { + throw createError(415, 'content encoding unsupported') + } + + switch (encoding) { + case 'deflate': + stream = zlib.createInflate() + debug('inflate body') + req.pipe(stream) + break + case 'gzip': + stream = zlib.createGunzip() + debug('gunzip body') + req.pipe(stream) + break + case 'identity': + stream = req + stream.length = length + break + default: + throw createError(415, 'unsupported content encoding "' + encoding + '"', { + encoding: encoding + }) + } + + return stream +} + +/** + * Set a status on an error object, if ones does not exist + * @private + */ + +function setErrorStatus (error, status) { + if (!error.status && !error.statusCode) { + error.status = status + error.statusCode = status + } +} |