diff options
Diffstat (limited to 'g4f/Provider/npm/node_modules/@fastify/busboy/deps/dicer/lib/Dicer.js')
| -rw-r--r-- | g4f/Provider/npm/node_modules/@fastify/busboy/deps/dicer/lib/Dicer.js | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/g4f/Provider/npm/node_modules/@fastify/busboy/deps/dicer/lib/Dicer.js b/g4f/Provider/npm/node_modules/@fastify/busboy/deps/dicer/lib/Dicer.js deleted file mode 100644 index 79da160c..00000000 --- a/g4f/Provider/npm/node_modules/@fastify/busboy/deps/dicer/lib/Dicer.js +++ /dev/null @@ -1,207 +0,0 @@ -'use strict' - -const WritableStream = require('node:stream').Writable -const inherits = require('node:util').inherits - -const StreamSearch = require('../../streamsearch/sbmh') - -const PartStream = require('./PartStream') -const HeaderParser = require('./HeaderParser') - -const DASH = 45 -const B_ONEDASH = Buffer.from('-') -const B_CRLF = Buffer.from('\r\n') -const EMPTY_FN = function () {} - -function Dicer (cfg) { - if (!(this instanceof Dicer)) { return new Dicer(cfg) } - WritableStream.call(this, cfg) - - if (!cfg || (!cfg.headerFirst && typeof cfg.boundary !== 'string')) { throw new TypeError('Boundary required') } - - if (typeof cfg.boundary === 'string') { this.setBoundary(cfg.boundary) } else { this._bparser = undefined } - - this._headerFirst = cfg.headerFirst - - this._dashes = 0 - this._parts = 0 - this._finished = false - this._realFinish = false - this._isPreamble = true - this._justMatched = false - this._firstWrite = true - this._inHeader = true - this._part = undefined - this._cb = undefined - this._ignoreData = false - this._partOpts = { highWaterMark: cfg.partHwm } - this._pause = false - - const self = this - this._hparser = new HeaderParser(cfg) - this._hparser.on('header', function (header) { - self._inHeader = false - self._part.emit('header', header) - }) -} -inherits(Dicer, WritableStream) - -Dicer.prototype.emit = function (ev) { - if (ev === 'finish' && !this._realFinish) { - if (!this._finished) { - const self = this - process.nextTick(function () { - self.emit('error', new Error('Unexpected end of multipart data')) - if (self._part && !self._ignoreData) { - const type = (self._isPreamble ? 'Preamble' : 'Part') - self._part.emit('error', new Error(type + ' terminated early due to unexpected end of multipart data')) - self._part.push(null) - process.nextTick(function () { - self._realFinish = true - self.emit('finish') - self._realFinish = false - }) - return - } - self._realFinish = true - self.emit('finish') - self._realFinish = false - }) - } - } else { WritableStream.prototype.emit.apply(this, arguments) } -} - -Dicer.prototype._write = function (data, encoding, cb) { - // ignore unexpected data (e.g. extra trailer data after finished) - if (!this._hparser && !this._bparser) { return cb() } - - if (this._headerFirst && this._isPreamble) { - if (!this._part) { - this._part = new PartStream(this._partOpts) - if (this._events.preamble) { this.emit('preamble', this._part) } else { this._ignore() } - } - const r = this._hparser.push(data) - if (!this._inHeader && r !== undefined && r < data.length) { data = data.slice(r) } else { return cb() } - } - - // allows for "easier" testing - if (this._firstWrite) { - this._bparser.push(B_CRLF) - this._firstWrite = false - } - - this._bparser.push(data) - - if (this._pause) { this._cb = cb } else { cb() } -} - -Dicer.prototype.reset = function () { - this._part = undefined - this._bparser = undefined - this._hparser = undefined -} - -Dicer.prototype.setBoundary = function (boundary) { - const self = this - this._bparser = new StreamSearch('\r\n--' + boundary) - this._bparser.on('info', function (isMatch, data, start, end) { - self._oninfo(isMatch, data, start, end) - }) -} - -Dicer.prototype._ignore = function () { - if (this._part && !this._ignoreData) { - this._ignoreData = true - this._part.on('error', EMPTY_FN) - // we must perform some kind of read on the stream even though we are - // ignoring the data, otherwise node's Readable stream will not emit 'end' - // after pushing null to the stream - this._part.resume() - } -} - -Dicer.prototype._oninfo = function (isMatch, data, start, end) { - let buf; const self = this; let i = 0; let r; let shouldWriteMore = true - - if (!this._part && this._justMatched && data) { - while (this._dashes < 2 && (start + i) < end) { - if (data[start + i] === DASH) { - ++i - ++this._dashes - } else { - if (this._dashes) { buf = B_ONEDASH } - this._dashes = 0 - break - } - } - if (this._dashes === 2) { - if ((start + i) < end && this._events.trailer) { this.emit('trailer', data.slice(start + i, end)) } - this.reset() - this._finished = true - // no more parts will be added - if (self._parts === 0) { - self._realFinish = true - self.emit('finish') - self._realFinish = false - } - } - if (this._dashes) { return } - } - if (this._justMatched) { this._justMatched = false } - if (!this._part) { - this._part = new PartStream(this._partOpts) - this._part._read = function (n) { - self._unpause() - } - if (this._isPreamble && this._events.preamble) { this.emit('preamble', this._part) } else if (this._isPreamble !== true && this._events.part) { this.emit('part', this._part) } else { this._ignore() } - if (!this._isPreamble) { this._inHeader = true } - } - if (data && start < end && !this._ignoreData) { - if (this._isPreamble || !this._inHeader) { - if (buf) { shouldWriteMore = this._part.push(buf) } - shouldWriteMore = this._part.push(data.slice(start, end)) - if (!shouldWriteMore) { this._pause = true } - } else if (!this._isPreamble && this._inHeader) { - if (buf) { this._hparser.push(buf) } - r = this._hparser.push(data.slice(start, end)) - if (!this._inHeader && r !== undefined && r < end) { this._oninfo(false, data, start + r, end) } - } - } - if (isMatch) { - this._hparser.reset() - if (this._isPreamble) { this._isPreamble = false } else { - if (start !== end) { - ++this._parts - this._part.on('end', function () { - if (--self._parts === 0) { - if (self._finished) { - self._realFinish = true - self.emit('finish') - self._realFinish = false - } else { - self._unpause() - } - } - }) - } - } - this._part.push(null) - this._part = undefined - this._ignoreData = false - this._justMatched = true - this._dashes = 0 - } -} - -Dicer.prototype._unpause = function () { - if (!this._pause) { return } - - this._pause = false - if (this._cb) { - const cb = this._cb - this._cb = undefined - cb() - } -} - -module.exports = Dicer |