xfarrow/blink
0
0
Fork 0
mirror of https://github.com/xfarrow/blink synced 2025-06-27 09:03:02 +02:00
Code Issues Packages Projects Releases Wiki Activity

Change endpoint from persons to people

Browse Source
This commit is contained in:
xfarrow
2025-03-23 21:00:08 +01:00
parent 4ae263662c
commit d005193f63
7158 changed files with 700476 additions and 735 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
backend/apis/nodejs/node_modules/minizlib/LICENSE generated vendored Normal file
View File

@ -0,0 +1,26 @@
Minizlib was created by Isaac Z. Schlueter.
It is a derivative work of the Node.js project.
"""
Copyright Isaac Z. Schlueter and Contributors
Copyright Node.js contributors. All rights reserved.
Copyright Joyent, Inc. and other Node contributors. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
"""

60
backend/apis/nodejs/node_modules/minizlib/README.md generated vendored Normal file
View File

@ -0,0 +1,60 @@
# minizlib
A fast zlib stream built on [minipass](http://npm.im/minipass) and
Node.js's zlib binding.
This module was created to serve the needs of
[node-tar](http://npm.im/tar) and
[minipass-fetch](http://npm.im/minipass-fetch).
Brotli is supported in versions of node with a Brotli binding.
## How does this differ from the streams in `require('zlib')`?
First, there are no convenience methods to compress or decompress a
buffer. If you want those, use the built-in `zlib` module. This is
only streams. That being said, Minipass streams to make it fairly easy to
use as one-liners: `new zlib.Deflate().end(data).read()` will return the
deflate compressed result.
This module compresses and decompresses the data as fast as you feed
it in. It is synchronous, and runs on the main process thread. Zlib
and Brotli operations can be high CPU, but they're very fast, and doing it
this way means much less bookkeeping and artificial deferral.
Node's built in zlib streams are built on top of `stream.Transform`.
They do the maximally safe thing with respect to consistent
asynchrony, buffering, and backpressure.
See [Minipass](http://npm.im/minipass) for more on the differences between
Node.js core streams and Minipass streams, and the convenience methods
provided by that class.
## Classes
- Deflate
- Inflate
- Gzip
- Gunzip
- DeflateRaw
- InflateRaw
- Unzip
- BrotliCompress (Node v10 and higher)
- BrotliDecompress (Node v10 and higher)
## USAGE
```js
const zlib = require('minizlib')
const input = sourceOfCompressedData()
const decode = new zlib.BrotliDecompress()
const output = whereToWriteTheDecodedData()
input.pipe(decode).pipe(output)
```
## REPRODUCIBLE BUILDS
To create reproducible gzip compressed files across different operating
systems, set `portable: true` in the options. This causes minizlib to set
the `OS` indicator in byte 9 of the extended gzip header to `0xFF` for
'unknown'.

115
backend/apis/nodejs/node_modules/minizlib/constants.js generated vendored Normal file
View File

@ -0,0 +1,115 @@
// Update with any zlib constants that are added or changed in the future.
// Node v6 didn't export this, so we just hard code the version and rely
// on all the other hard-coded values from zlib v4736. When node v6
// support drops, we can just export the realZlibConstants object.
const realZlibConstants = require('zlib').constants ||
/* istanbul ignore next */ { ZLIB_VERNUM: 4736 }
module.exports = Object.freeze(Object.assign(Object.create(null), {
Z_NO_FLUSH: 0,
Z_PARTIAL_FLUSH: 1,
Z_SYNC_FLUSH: 2,
Z_FULL_FLUSH: 3,
Z_FINISH: 4,
Z_BLOCK: 5,
Z_OK: 0,
Z_STREAM_END: 1,
Z_NEED_DICT: 2,
Z_ERRNO: -1,
Z_STREAM_ERROR: -2,
Z_DATA_ERROR: -3,
Z_MEM_ERROR: -4,
Z_BUF_ERROR: -5,
Z_VERSION_ERROR: -6,
Z_NO_COMPRESSION: 0,
Z_BEST_SPEED: 1,
Z_BEST_COMPRESSION: 9,
Z_DEFAULT_COMPRESSION: -1,
Z_FILTERED: 1,
Z_HUFFMAN_ONLY: 2,
Z_RLE: 3,
Z_FIXED: 4,
Z_DEFAULT_STRATEGY: 0,
DEFLATE: 1,
INFLATE: 2,
GZIP: 3,
GUNZIP: 4,
DEFLATERAW: 5,
INFLATERAW: 6,
UNZIP: 7,
BROTLI_DECODE: 8,
BROTLI_ENCODE: 9,
Z_MIN_WINDOWBITS: 8,
Z_MAX_WINDOWBITS: 15,
Z_DEFAULT_WINDOWBITS: 15,
Z_MIN_CHUNK: 64,
Z_MAX_CHUNK: Infinity,
Z_DEFAULT_CHUNK: 16384,
Z_MIN_MEMLEVEL: 1,
Z_MAX_MEMLEVEL: 9,
Z_DEFAULT_MEMLEVEL: 8,
Z_MIN_LEVEL: -1,
Z_MAX_LEVEL: 9,
Z_DEFAULT_LEVEL: -1,
BROTLI_OPERATION_PROCESS: 0,
BROTLI_OPERATION_FLUSH: 1,
BROTLI_OPERATION_FINISH: 2,
BROTLI_OPERATION_EMIT_METADATA: 3,
BROTLI_MODE_GENERIC: 0,
BROTLI_MODE_TEXT: 1,
BROTLI_MODE_FONT: 2,
BROTLI_DEFAULT_MODE: 0,
BROTLI_MIN_QUALITY: 0,
BROTLI_MAX_QUALITY: 11,
BROTLI_DEFAULT_QUALITY: 11,
BROTLI_MIN_WINDOW_BITS: 10,
BROTLI_MAX_WINDOW_BITS: 24,
BROTLI_LARGE_MAX_WINDOW_BITS: 30,
BROTLI_DEFAULT_WINDOW: 22,
BROTLI_MIN_INPUT_BLOCK_BITS: 16,
BROTLI_MAX_INPUT_BLOCK_BITS: 24,
BROTLI_PARAM_MODE: 0,
BROTLI_PARAM_QUALITY: 1,
BROTLI_PARAM_LGWIN: 2,
BROTLI_PARAM_LGBLOCK: 3,
BROTLI_PARAM_DISABLE_LITERAL_CONTEXT_MODELING: 4,
BROTLI_PARAM_SIZE_HINT: 5,
BROTLI_PARAM_LARGE_WINDOW: 6,
BROTLI_PARAM_NPOSTFIX: 7,
BROTLI_PARAM_NDIRECT: 8,
BROTLI_DECODER_RESULT_ERROR: 0,
BROTLI_DECODER_RESULT_SUCCESS: 1,
BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT: 2,
BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT: 3,
BROTLI_DECODER_PARAM_DISABLE_RING_BUFFER_REALLOCATION: 0,
BROTLI_DECODER_PARAM_LARGE_WINDOW: 1,
BROTLI_DECODER_NO_ERROR: 0,
BROTLI_DECODER_SUCCESS: 1,
BROTLI_DECODER_NEEDS_MORE_INPUT: 2,
BROTLI_DECODER_NEEDS_MORE_OUTPUT: 3,
BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_NIBBLE: -1,
BROTLI_DECODER_ERROR_FORMAT_RESERVED: -2,
BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_META_NIBBLE: -3,
BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_ALPHABET: -4,
BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_SAME: -5,
BROTLI_DECODER_ERROR_FORMAT_CL_SPACE: -6,
BROTLI_DECODER_ERROR_FORMAT_HUFFMAN_SPACE: -7,
BROTLI_DECODER_ERROR_FORMAT_CONTEXT_MAP_REPEAT: -8,
BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_1: -9,
BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_2: -10,
BROTLI_DECODER_ERROR_FORMAT_TRANSFORM: -11,
BROTLI_DECODER_ERROR_FORMAT_DICTIONARY: -12,
BROTLI_DECODER_ERROR_FORMAT_WINDOW_BITS: -13,
BROTLI_DECODER_ERROR_FORMAT_PADDING_1: -14,
BROTLI_DECODER_ERROR_FORMAT_PADDING_2: -15,
BROTLI_DECODER_ERROR_FORMAT_DISTANCE: -16,
BROTLI_DECODER_ERROR_DICTIONARY_NOT_SET: -19,
BROTLI_DECODER_ERROR_INVALID_ARGUMENTS: -20,
BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MODES: -21,
BROTLI_DECODER_ERROR_ALLOC_TREE_GROUPS: -22,
BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MAP: -25,
BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_1: -26,
BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_2: -27,
BROTLI_DECODER_ERROR_ALLOC_BLOCK_TYPE_TREES: -30,
BROTLI_DECODER_ERROR_UNREACHABLE: -31,
}, realZlibConstants))

348
backend/apis/nodejs/node_modules/minizlib/index.js generated vendored Normal file
View File

@ -0,0 +1,348 @@
'use strict'
const assert = require('assert')
const Buffer = require('buffer').Buffer
const realZlib = require('zlib')
const constants = exports.constants = require('./constants.js')
const Minipass = require('minipass')
const OriginalBufferConcat = Buffer.concat
const _superWrite = Symbol('_superWrite')
class ZlibError extends Error {
constructor (err) {
super('zlib: ' + err.message)
this.code = err.code
this.errno = err.errno
/* istanbul ignore if */
if (!this.code)
this.code = 'ZLIB_ERROR'
this.message = 'zlib: ' + err.message
Error.captureStackTrace(this, this.constructor)
}
get name () {
return 'ZlibError'
}
}
// the Zlib class they all inherit from
// This thing manages the queue of requests, and returns
// true or false if there is anything in the queue when
// you call the .write() method.
const _opts = Symbol('opts')
const _flushFlag = Symbol('flushFlag')
const _finishFlushFlag = Symbol('finishFlushFlag')
const _fullFlushFlag = Symbol('fullFlushFlag')
const _handle = Symbol('handle')
const _onError = Symbol('onError')
const _sawError = Symbol('sawError')
const _level = Symbol('level')
const _strategy = Symbol('strategy')
const _ended = Symbol('ended')
const _defaultFullFlush = Symbol('_defaultFullFlush')
class ZlibBase extends Minipass {
constructor (opts, mode) {
if (!opts || typeof opts !== 'object')
throw new TypeError('invalid options for ZlibBase constructor')
super(opts)
this[_sawError] = false
this[_ended] = false
this[_opts] = opts
this[_flushFlag] = opts.flush
this[_finishFlushFlag] = opts.finishFlush
// this will throw if any options are invalid for the class selected
try {
this[_handle] = new realZlib[mode](opts)
} catch (er) {
// make sure that all errors get decorated properly
throw new ZlibError(er)
}
this[_onError] = (err) => {
// no sense raising multiple errors, since we abort on the first one.
if (this[_sawError])
return
this[_sawError] = true
// there is no way to cleanly recover.
// continuing only obscures problems.
this.close()
this.emit('error', err)
}
this[_handle].on('error', er => this[_onError](new ZlibError(er)))
this.once('end', () => this.close)
}
close () {
if (this[_handle]) {
this[_handle].close()
this[_handle] = null
this.emit('close')
}
}
reset () {
if (!this[_sawError]) {
assert(this[_handle], 'zlib binding closed')
return this[_handle].reset()
}
}
flush (flushFlag) {
if (this.ended)
return
if (typeof flushFlag !== 'number')
flushFlag = this[_fullFlushFlag]
this.write(Object.assign(Buffer.alloc(0), { [_flushFlag]: flushFlag }))
}
end (chunk, encoding, cb) {
if (chunk)
this.write(chunk, encoding)
this.flush(this[_finishFlushFlag])
this[_ended] = true
return super.end(null, null, cb)
}
get ended () {
return this[_ended]
}
write (chunk, encoding, cb) {
// process the chunk using the sync process
// then super.write() all the outputted chunks
if (typeof encoding === 'function')
cb = encoding, encoding = 'utf8'
if (typeof chunk === 'string')
chunk = Buffer.from(chunk, encoding)
if (this[_sawError])
return
assert(this[_handle], 'zlib binding closed')
// _processChunk tries to .close() the native handle after it's done, so we
// intercept that by temporarily making it a no-op.
const nativeHandle = this[_handle]._handle
const originalNativeClose = nativeHandle.close
nativeHandle.close = () => {}
const originalClose = this[_handle].close
this[_handle].close = () => {}
// It also calls `Buffer.concat()` at the end, which may be convenient
// for some, but which we are not interested in as it slows us down.
Buffer.concat = (args) => args
let result
try {
const flushFlag = typeof chunk[_flushFlag] === 'number'
? chunk[_flushFlag] : this[_flushFlag]
result = this[_handle]._processChunk(chunk, flushFlag)
// if we don't throw, reset it back how it was
Buffer.concat = OriginalBufferConcat
} catch (err) {
// or if we do, put Buffer.concat() back before we emit error
// Error events call into user code, which may call Buffer.concat()
Buffer.concat = OriginalBufferConcat
this[_onError](new ZlibError(err))
} finally {
if (this[_handle]) {
// Core zlib resets `_handle` to null after attempting to close the
// native handle. Our no-op handler prevented actual closure, but we
// need to restore the `._handle` property.
this[_handle]._handle = nativeHandle
nativeHandle.close = originalNativeClose
this[_handle].close = originalClose
// `_processChunk()` adds an 'error' listener. If we don't remove it
// after each call, these handlers start piling up.
this[_handle].removeAllListeners('error')
// make sure OUR error listener is still attached tho
}
}
if (this[_handle])
this[_handle].on('error', er => this[_onError](new ZlibError(er)))
let writeReturn
if (result) {
if (Array.isArray(result) && result.length > 0) {
// The first buffer is always `handle._outBuffer`, which would be
// re-used for later invocations; so, we always have to copy that one.
writeReturn = this[_superWrite](Buffer.from(result[0]))
for (let i = 1; i < result.length; i++) {
writeReturn = this[_superWrite](result[i])
}
} else {
writeReturn = this[_superWrite](Buffer.from(result))
}
}
if (cb)
cb()
return writeReturn
}
[_superWrite] (data) {
return super.write(data)
}
}
class Zlib extends ZlibBase {
constructor (opts, mode) {
opts = opts || {}
opts.flush = opts.flush || constants.Z_NO_FLUSH
opts.finishFlush = opts.finishFlush || constants.Z_FINISH
super(opts, mode)
this[_fullFlushFlag] = constants.Z_FULL_FLUSH
this[_level] = opts.level
this[_strategy] = opts.strategy
}
params (level, strategy) {
if (this[_sawError])
return
if (!this[_handle])
throw new Error('cannot switch params when binding is closed')
// no way to test this without also not supporting params at all
/* istanbul ignore if */
if (!this[_handle].params)
throw new Error('not supported in this implementation')
if (this[_level] !== level || this[_strategy] !== strategy) {
this.flush(constants.Z_SYNC_FLUSH)
assert(this[_handle], 'zlib binding closed')
// .params() calls .flush(), but the latter is always async in the
// core zlib. We override .flush() temporarily to intercept that and
// flush synchronously.
const origFlush = this[_handle].flush
this[_handle].flush = (flushFlag, cb) => {
this.flush(flushFlag)
cb()
}
try {
this[_handle].params(level, strategy)
} finally {
this[_handle].flush = origFlush
}
/* istanbul ignore else */
if (this[_handle]) {
this[_level] = level
this[_strategy] = strategy
}
}
}
}
// minimal 2-byte header
class Deflate extends Zlib {
constructor (opts) {
super(opts, 'Deflate')
}
}
class Inflate extends Zlib {
constructor (opts) {
super(opts, 'Inflate')
}
}
// gzip - bigger header, same deflate compression
const _portable = Symbol('_portable')
class Gzip extends Zlib {
constructor (opts) {
super(opts, 'Gzip')
this[_portable] = opts && !!opts.portable
}
[_superWrite] (data) {
if (!this[_portable])
return super[_superWrite](data)
// we'll always get the header emitted in one first chunk
// overwrite the OS indicator byte with 0xFF
this[_portable] = false
data[9] = 255
return super[_superWrite](data)
}
}
class Gunzip extends Zlib {
constructor (opts) {
super(opts, 'Gunzip')
}
}
// raw - no header
class DeflateRaw extends Zlib {
constructor (opts) {
super(opts, 'DeflateRaw')
}
}
class InflateRaw extends Zlib {
constructor (opts) {
super(opts, 'InflateRaw')
}
}
// auto-detect header.
class Unzip extends Zlib {
constructor (opts) {
super(opts, 'Unzip')
}
}
class Brotli extends ZlibBase {
constructor (opts, mode) {
opts = opts || {}
opts.flush = opts.flush || constants.BROTLI_OPERATION_PROCESS
opts.finishFlush = opts.finishFlush || constants.BROTLI_OPERATION_FINISH
super(opts, mode)
this[_fullFlushFlag] = constants.BROTLI_OPERATION_FLUSH
}
}
class BrotliCompress extends Brotli {
constructor (opts) {
super(opts, 'BrotliCompress')
}
}
class BrotliDecompress extends Brotli {
constructor (opts) {
super(opts, 'BrotliDecompress')
}
}
exports.Deflate = Deflate
exports.Inflate = Inflate
exports.Gzip = Gzip
exports.Gunzip = Gunzip
exports.DeflateRaw = DeflateRaw
exports.InflateRaw = InflateRaw
exports.Unzip = Unzip
/* istanbul ignore else */
if (typeof realZlib.BrotliCompress === 'function') {
exports.BrotliCompress = BrotliCompress
exports.BrotliDecompress = BrotliDecompress
} else {
exports.BrotliCompress = exports.BrotliDecompress = class {
constructor () {
throw new Error('Brotli is not supported in this version of Node.js')
}
}
}

15
backend/apis/nodejs/node_modules/minizlib/node_modules/minipass/LICENSE generated vendored Normal file
View File

@ -0,0 +1,15 @@
The ISC License
Copyright (c) 2017-2022 npm, Inc., Isaac Z. Schlueter, and Contributors
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

728
backend/apis/nodejs/node_modules/minizlib/node_modules/minipass/README.md generated vendored Normal file
View File

@ -0,0 +1,728 @@
# minipass
A _very_ minimal implementation of a [PassThrough
stream](https://nodejs.org/api/stream.html#stream_class_stream_passthrough)
[It's very
fast](https://docs.google.com/spreadsheets/d/1oObKSrVwLX_7Ut4Z6g3fZW-AX1j1-k6w-cDsrkaSbHM/edit#gid=0)
for objects, strings, and buffers.
Supports `pipe()`ing (including multi-`pipe()` and backpressure transmission),
buffering data until either a `data` event handler or `pipe()` is added (so
you don't lose the first chunk), and most other cases where PassThrough is
a good idea.
There is a `read()` method, but it's much more efficient to consume data
from this stream via `'data'` events or by calling `pipe()` into some other
stream. Calling `read()` requires the buffer to be flattened in some
cases, which requires copying memory.
If you set `objectMode: true` in the options, then whatever is written will
be emitted. Otherwise, it'll do a minimal amount of Buffer copying to
ensure proper Streams semantics when `read(n)` is called.
`objectMode` can also be set by doing `stream.objectMode = true`, or by
writing any non-string/non-buffer data. `objectMode` cannot be set to
false once it is set.
This is not a `through` or `through2` stream. It doesn't transform the
data, it just passes it right through. If you want to transform the data,
extend the class, and override the `write()` method. Once you're done
transforming the data however you want, call `super.write()` with the
transform output.
For some examples of streams that extend Minipass in various ways, check
out:
- [minizlib](http://npm.im/minizlib)
- [fs-minipass](http://npm.im/fs-minipass)
- [tar](http://npm.im/tar)
- [minipass-collect](http://npm.im/minipass-collect)
- [minipass-flush](http://npm.im/minipass-flush)
- [minipass-pipeline](http://npm.im/minipass-pipeline)
- [tap](http://npm.im/tap)
- [tap-parser](http://npm.im/tap-parser)
- [treport](http://npm.im/treport)
- [minipass-fetch](http://npm.im/minipass-fetch)
- [pacote](http://npm.im/pacote)
- [make-fetch-happen](http://npm.im/make-fetch-happen)
- [cacache](http://npm.im/cacache)
- [ssri](http://npm.im/ssri)
- [npm-registry-fetch](http://npm.im/npm-registry-fetch)
- [minipass-json-stream](http://npm.im/minipass-json-stream)
- [minipass-sized](http://npm.im/minipass-sized)
## Differences from Node.js Streams
There are several things that make Minipass streams different from (and in
some ways superior to) Node.js core streams.
Please read these caveats if you are familiar with node-core streams and
intend to use Minipass streams in your programs.
You can avoid most of these differences entirely (for a very
small performance penalty) by setting `{async: true}` in the
constructor options.
### Timing
Minipass streams are designed to support synchronous use-cases. Thus, data
is emitted as soon as it is available, always. It is buffered until read,
but no longer. Another way to look at it is that Minipass streams are
exactly as synchronous as the logic that writes into them.
This can be surprising if your code relies on `PassThrough.write()` always
providing data on the next tick rather than the current one, or being able
to call `resume()` and not have the entire buffer disappear immediately.
However, without this synchronicity guarantee, there would be no way for
Minipass to achieve the speeds it does, or support the synchronous use
cases that it does. Simply put, waiting takes time.
This non-deferring approach makes Minipass streams much easier to reason
about, especially in the context of Promises and other flow-control
mechanisms.
Example:
```js
const Minipass = require('minipass')
const stream = new Minipass({ async: true })
stream.on('data', () => console.log('data event'))
console.log('before write')
stream.write('hello')
console.log('after write')
// output:
// before write
// data event
// after write
```
### Exception: Async Opt-In
If you wish to have a Minipass stream with behavior that more
closely mimics Node.js core streams, you can set the stream in
async mode either by setting `async: true` in the constructor
options, or by setting `stream.async = true` later on.
```js
const Minipass = require('minipass')
const asyncStream = new Minipass({ async: true })
asyncStream.on('data', () => console.log('data event'))
console.log('before write')
asyncStream.write('hello')
console.log('after write')
// output:
// before write
// after write
// data event <-- this is deferred until the next tick
```
Switching _out_ of async mode is unsafe, as it could cause data
corruption, and so is not enabled. Example:
```js
const Minipass = require('minipass')
const stream = new Minipass({ encoding: 'utf8' })
stream.on('data', chunk => console.log(chunk))
stream.async = true
console.log('before writes')
stream.write('hello')
setStreamSyncAgainSomehow(stream) // <-- this doesn't actually exist!
stream.write('world')
console.log('after writes')
// hypothetical output would be:
// before writes
// world
// after writes
// hello
// NOT GOOD!
```
To avoid this problem, once set into async mode, any attempt to
make the stream sync again will be ignored.
```js
const Minipass = require('minipass')
const stream = new Minipass({ encoding: 'utf8' })
stream.on('data', chunk => console.log(chunk))
stream.async = true
console.log('before writes')
stream.write('hello')
stream.async = false // <-- no-op, stream already async
stream.write('world')
console.log('after writes')
// actual output:
// before writes
// after writes
// hello
// world
```
### No High/Low Water Marks
Node.js core streams will optimistically fill up a buffer, returning `true`
on all writes until the limit is hit, even if the data has nowhere to go.
Then, they will not attempt to draw more data in until the buffer size dips
below a minimum value.
Minipass streams are much simpler. The `write()` method will return `true`
if the data has somewhere to go (which is to say, given the timing
guarantees, that the data is already there by the time `write()` returns).
If the data has nowhere to go, then `write()` returns false, and the data
sits in a buffer, to be drained out immediately as soon as anyone consumes
it.
Since nothing is ever buffered unnecessarily, there is much less
copying data, and less bookkeeping about buffer capacity levels.
### Hazards of Buffering (or: Why Minipass Is So Fast)
Since data written to a Minipass stream is immediately written all the way
through the pipeline, and `write()` always returns true/false based on
whether the data was fully flushed, backpressure is communicated
immediately to the upstream caller. This minimizes buffering.
Consider this case:
```js
const {PassThrough} = require('stream')
const p1 = new PassThrough({ highWaterMark: 1024 })
const p2 = new PassThrough({ highWaterMark: 1024 })
const p3 = new PassThrough({ highWaterMark: 1024 })
const p4 = new PassThrough({ highWaterMark: 1024 })
p1.pipe(p2).pipe(p3).pipe(p4)
p4.on('data', () => console.log('made it through'))
// this returns false and buffers, then writes to p2 on next tick (1)
// p2 returns false and buffers, pausing p1, then writes to p3 on next tick (2)
// p3 returns false and buffers, pausing p2, then writes to p4 on next tick (3)
// p4 returns false and buffers, pausing p3, then emits 'data' and 'drain'
// on next tick (4)
// p3 sees p4's 'drain' event, and calls resume(), emitting 'resume' and
// 'drain' on next tick (5)
// p2 sees p3's 'drain', calls resume(), emits 'resume' and 'drain' on next tick (6)
// p1 sees p2's 'drain', calls resume(), emits 'resume' and 'drain' on next
// tick (7)
p1.write(Buffer.alloc(2048)) // returns false
```
Along the way, the data was buffered and deferred at each stage, and
multiple event deferrals happened, for an unblocked pipeline where it was
perfectly safe to write all the way through!
Furthermore, setting a `highWaterMark` of `1024` might lead someone reading
the code to think an advisory maximum of 1KiB is being set for the
pipeline. However, the actual advisory buffering level is the _sum_ of
`highWaterMark` values, since each one has its own bucket.
Consider the Minipass case:
```js
const m1 = new Minipass()
const m2 = new Minipass()
const m3 = new Minipass()
const m4 = new Minipass()
m1.pipe(m2).pipe(m3).pipe(m4)
m4.on('data', () => console.log('made it through'))
// m1 is flowing, so it writes the data to m2 immediately
// m2 is flowing, so it writes the data to m3 immediately
// m3 is flowing, so it writes the data to m4 immediately
// m4 is flowing, so it fires the 'data' event immediately, returns true
// m4's write returned true, so m3 is still flowing, returns true
// m3's write returned true, so m2 is still flowing, returns true
// m2's write returned true, so m1 is still flowing, returns true
// No event deferrals or buffering along the way!
m1.write(Buffer.alloc(2048)) // returns true
```
It is extremely unlikely that you _don't_ want to buffer any data written,
or _ever_ buffer data that can be flushed all the way through. Neither
node-core streams nor Minipass ever fail to buffer written data, but
node-core streams do a lot of unnecessary buffering and pausing.
As always, the faster implementation is the one that does less stuff and
waits less time to do it.
### Immediately emit `end` for empty streams (when not paused)
If a stream is not paused, and `end()` is called before writing any data
into it, then it will emit `end` immediately.
If you have logic that occurs on the `end` event which you don't want to
potentially happen immediately (for example, closing file descriptors,
moving on to the next entry in an archive parse stream, etc.) then be sure
to call `stream.pause()` on creation, and then `stream.resume()` once you
are ready to respond to the `end` event.
However, this is _usually_ not a problem because:
### Emit `end` When Asked
One hazard of immediately emitting `'end'` is that you may not yet have had
a chance to add a listener. In order to avoid this hazard, Minipass
streams safely re-emit the `'end'` event if a new listener is added after
`'end'` has been emitted.
Ie, if you do `stream.on('end', someFunction)`, and the stream has already
emitted `end`, then it will call the handler right away. (You can think of
this somewhat like attaching a new `.then(fn)` to a previously-resolved
Promise.)
To prevent calling handlers multiple times who would not expect multiple
ends to occur, all listeners are removed from the `'end'` event whenever it
is emitted.
### Emit `error` When Asked
The most recent error object passed to the `'error'` event is
stored on the stream. If a new `'error'` event handler is added,
and an error was previously emitted, then the event handler will
be called immediately (or on `process.nextTick` in the case of
async streams).
This makes it much more difficult to end up trying to interact
with a broken stream, if the error handler is added after an
error was previously emitted.
### Impact of "immediate flow" on Tee-streams
A "tee stream" is a stream piping to multiple destinations:
```js
const tee = new Minipass()
t.pipe(dest1)
t.pipe(dest2)
t.write('foo') // goes to both destinations
```
Since Minipass streams _immediately_ process any pending data through the
pipeline when a new pipe destination is added, this can have surprising
effects, especially when a stream comes in from some other function and may
or may not have data in its buffer.
```js
// WARNING! WILL LOSE DATA!
const src = new Minipass()
src.write('foo')
src.pipe(dest1) // 'foo' chunk flows to dest1 immediately, and is gone
src.pipe(dest2) // gets nothing!
```
One solution is to create a dedicated tee-stream junction that pipes to
both locations, and then pipe to _that_ instead.
```js
// Safe example: tee to both places
const src = new Minipass()
src.write('foo')
const tee = new Minipass()
tee.pipe(dest1)
tee.pipe(dest2)
src.pipe(tee) // tee gets 'foo', pipes to both locations
```
The same caveat applies to `on('data')` event listeners. The first one
added will _immediately_ receive all of the data, leaving nothing for the
second:
```js
// WARNING! WILL LOSE DATA!
const src = new Minipass()
src.write('foo')
src.on('data', handler1) // receives 'foo' right away
src.on('data', handler2) // nothing to see here!
```
Using a dedicated tee-stream can be used in this case as well:
```js
// Safe example: tee to both data handlers
const src = new Minipass()
src.write('foo')
const tee = new Minipass()
tee.on('data', handler1)
tee.on('data', handler2)
src.pipe(tee)
```
All of the hazards in this section are avoided by setting `{
async: true }` in the Minipass constructor, or by setting
`stream.async = true` afterwards. Note that this does add some
overhead, so should only be done in cases where you are willing
to lose a bit of performance in order to avoid having to refactor
program logic.
## USAGE
It's a stream! Use it like a stream and it'll most likely do what you
want.
```js
const Minipass = require('minipass')
const mp = new Minipass(options) // optional: { encoding, objectMode }
mp.write('foo')
mp.pipe(someOtherStream)
mp.end('bar')
```
### OPTIONS
* `encoding` How would you like the data coming _out_ of the stream to be
encoded? Accepts any values that can be passed to `Buffer.toString()`.
* `objectMode` Emit data exactly as it comes in. This will be flipped on
by default if you write() something other than a string or Buffer at any
point. Setting `objectMode: true` will prevent setting any encoding
value.
* `async` Defaults to `false`. Set to `true` to defer data
emission until next tick. This reduces performance slightly,
but makes Minipass streams use timing behavior closer to Node
core streams. See [Timing](#timing) for more details.
### API
Implements the user-facing portions of Node.js's `Readable` and `Writable`
streams.
### Methods
* `write(chunk, [encoding], [callback])` - Put data in. (Note that, in the
base Minipass class, the same data will come out.) Returns `false` if
the stream will buffer the next write, or true if it's still in "flowing"
mode.
* `end([chunk, [encoding]], [callback])` - Signal that you have no more
data to write. This will queue an `end` event to be fired when all the
data has been consumed.
* `setEncoding(encoding)` - Set the encoding for data coming of the stream.
This can only be done once.
* `pause()` - No more data for a while, please. This also prevents `end`
from being emitted for empty streams until the stream is resumed.
* `resume()` - Resume the stream. If there's data in the buffer, it is all
discarded. Any buffered events are immediately emitted.
* `pipe(dest)` - Send all output to the stream provided. When
data is emitted, it is immediately written to any and all pipe
destinations. (Or written on next tick in `async` mode.)
* `unpipe(dest)` - Stop piping to the destination stream. This
is immediate, meaning that any asynchronously queued data will
_not_ make it to the destination when running in `async` mode.
* `options.end` - Boolean, end the destination stream when
the source stream ends. Default `true`.
* `options.proxyErrors` - Boolean, proxy `error` events from
the source stream to the destination stream. Note that
errors are _not_ proxied after the pipeline terminates,
either due to the source emitting `'end'` or manually
unpiping with `src.unpipe(dest)`. Default `false`.
* `on(ev, fn)`, `emit(ev, fn)` - Minipass streams are EventEmitters. Some
events are given special treatment, however. (See below under "events".)
* `promise()` - Returns a Promise that resolves when the stream emits
`end`, or rejects if the stream emits `error`.
* `collect()` - Return a Promise that resolves on `end` with an array
containing each chunk of data that was emitted, or rejects if the stream
emits `error`. Note that this consumes the stream data.
* `concat()` - Same as `collect()`, but concatenates the data into a single
Buffer object. Will reject the returned promise if the stream is in
objectMode, or if it goes into objectMode by the end of the data.
* `read(n)` - Consume `n` bytes of data out of the buffer. If `n` is not
provided, then consume all of it. If `n` bytes are not available, then
it returns null. **Note** consuming streams in this way is less
efficient, and can lead to unnecessary Buffer copying.
* `destroy([er])` - Destroy the stream. If an error is provided, then an
`'error'` event is emitted. If the stream has a `close()` method, and
has not emitted a `'close'` event yet, then `stream.close()` will be
called. Any Promises returned by `.promise()`, `.collect()` or
`.concat()` will be rejected. After being destroyed, writing to the
stream will emit an error. No more data will be emitted if the stream is
destroyed, even if it was previously buffered.
### Properties
* `bufferLength` Read-only. Total number of bytes buffered, or in the case
of objectMode, the total number of objects.
* `encoding` The encoding that has been set. (Setting this is equivalent
to calling `setEncoding(enc)` and has the same prohibition against
setting multiple times.)
* `flowing` Read-only. Boolean indicating whether a chunk written to the
stream will be immediately emitted.
* `emittedEnd` Read-only. Boolean indicating whether the end-ish events
(ie, `end`, `prefinish`, `finish`) have been emitted. Note that
listening on any end-ish event will immediateyl re-emit it if it has
already been emitted.
* `writable` Whether the stream is writable. Default `true`. Set to
`false` when `end()`
* `readable` Whether the stream is readable. Default `true`.
* `buffer` A [yallist](http://npm.im/yallist) linked list of chunks written
to the stream that have not yet been emitted. (It's probably a bad idea
to mess with this.)
* `pipes` A [yallist](http://npm.im/yallist) linked list of streams that
this stream is piping into. (It's probably a bad idea to mess with
this.)
* `destroyed` A getter that indicates whether the stream was destroyed.
* `paused` True if the stream has been explicitly paused, otherwise false.
* `objectMode` Indicates whether the stream is in `objectMode`. Once set
to `true`, it cannot be set to `false`.
### Events
* `data` Emitted when there's data to read. Argument is the data to read.
This is never emitted while not flowing. If a listener is attached, that
will resume the stream.
* `end` Emitted when there's no more data to read. This will be emitted
immediately for empty streams when `end()` is called. If a listener is
attached, and `end` was already emitted, then it will be emitted again.
All listeners are removed when `end` is emitted.
* `prefinish` An end-ish event that follows the same logic as `end` and is
emitted in the same conditions where `end` is emitted. Emitted after
`'end'`.
* `finish` An end-ish event that follows the same logic as `end` and is
emitted in the same conditions where `end` is emitted. Emitted after
`'prefinish'`.
* `close` An indication that an underlying resource has been released.
Minipass does not emit this event, but will defer it until after `end`
has been emitted, since it throws off some stream libraries otherwise.
* `drain` Emitted when the internal buffer empties, and it is again
suitable to `write()` into the stream.
* `readable` Emitted when data is buffered and ready to be read by a
consumer.
* `resume` Emitted when stream changes state from buffering to flowing
mode. (Ie, when `resume` is called, `pipe` is called, or a `data` event
listener is added.)
### Static Methods
* `Minipass.isStream(stream)` Returns `true` if the argument is a stream,
and false otherwise. To be considered a stream, the object must be
either an instance of Minipass, or an EventEmitter that has either a
`pipe()` method, or both `write()` and `end()` methods. (Pretty much any
stream in node-land will return `true` for this.)
## EXAMPLES
Here are some examples of things you can do with Minipass streams.
### simple "are you done yet" promise
```js
mp.promise().then(() => {
// stream is finished
}, er => {
// stream emitted an error
})
```
### collecting
```js
mp.collect().then(all => {
// all is an array of all the data emitted
// encoding is supported in this case, so
// so the result will be a collection of strings if
// an encoding is specified, or buffers/objects if not.
//
// In an async function, you may do
// const data = await stream.collect()
})
```
### collecting into a single blob
This is a bit slower because it concatenates the data into one chunk for
you, but if you're going to do it yourself anyway, it's convenient this
way:
```js
mp.concat().then(onebigchunk => {
// onebigchunk is a string if the stream
// had an encoding set, or a buffer otherwise.
})
```
### iteration
You can iterate over streams synchronously or asynchronously in platforms
that support it.
Synchronous iteration will end when the currently available data is
consumed, even if the `end` event has not been reached. In string and
buffer mode, the data is concatenated, so unless multiple writes are
occurring in the same tick as the `read()`, sync iteration loops will
generally only have a single iteration.
To consume chunks in this way exactly as they have been written, with no
flattening, create the stream with the `{ objectMode: true }` option.
```js
const mp = new Minipass({ objectMode: true })
mp.write('a')
mp.write('b')
for (let letter of mp) {
console.log(letter) // a, b
}
mp.write('c')
mp.write('d')
for (let letter of mp) {
console.log(letter) // c, d
}
mp.write('e')
mp.end()
for (let letter of mp) {
console.log(letter) // e
}
for (let letter of mp) {
console.log(letter) // nothing
}
```
Asynchronous iteration will continue until the end event is reached,
consuming all of the data.
```js
const mp = new Minipass({ encoding: 'utf8' })
// some source of some data
let i = 5
const inter = setInterval(() => {
if (i-- > 0)
mp.write(Buffer.from('foo\n', 'utf8'))
else {
mp.end()
clearInterval(inter)
}
}, 100)
// consume the data with asynchronous iteration
async function consume () {
for await (let chunk of mp) {
console.log(chunk)
}
return 'ok'
}
consume().then(res => console.log(res))
// logs `foo\n` 5 times, and then `ok`
```
### subclass that `console.log()`s everything written into it
```js
class Logger extends Minipass {
write (chunk, encoding, callback) {
console.log('WRITE', chunk, encoding)
return super.write(chunk, encoding, callback)
}
end (chunk, encoding, callback) {
console.log('END', chunk, encoding)
return super.end(chunk, encoding, callback)
}
}
someSource.pipe(new Logger()).pipe(someDest)
```
### same thing, but using an inline anonymous class
```js
// js classes are fun
someSource
.pipe(new (class extends Minipass {
emit (ev, ...data) {
// let's also log events, because debugging some weird thing
console.log('EMIT', ev)
return super.emit(ev, ...data)
}
write (chunk, encoding, callback) {
console.log('WRITE', chunk, encoding)
return super.write(chunk, encoding, callback)
}
end (chunk, encoding, callback) {
console.log('END', chunk, encoding)
return super.end(chunk, encoding, callback)
}
}))
.pipe(someDest)
```
### subclass that defers 'end' for some reason
```js
class SlowEnd extends Minipass {
emit (ev, ...args) {
if (ev === 'end') {
console.log('going to end, hold on a sec')
setTimeout(() => {
console.log('ok, ready to end now')
super.emit('end', ...args)
}, 100)
} else {
return super.emit(ev, ...args)
}
}
}
```
### transform that creates newline-delimited JSON
```js
class NDJSONEncode extends Minipass {
write (obj, cb) {
try {
// JSON.stringify can throw, emit an error on that
return super.write(JSON.stringify(obj) + '\n', 'utf8', cb)
} catch (er) {
this.emit('error', er)
}
}
end (obj, cb) {
if (typeof obj === 'function') {
cb = obj
obj = undefined
}
if (obj !== undefined) {
this.write(obj)
}
return super.end(cb)
}
}
```
### transform that parses newline-delimited JSON
```js
class NDJSONDecode extends Minipass {
constructor (options) {
// always be in object mode, as far as Minipass is concerned
super({ objectMode: true })
this._jsonBuffer = ''
}
write (chunk, encoding, cb) {
if (typeof chunk === 'string' &&
typeof encoding === 'string' &&
encoding !== 'utf8') {
chunk = Buffer.from(chunk, encoding).toString()
} else if (Buffer.isBuffer(chunk))
chunk = chunk.toString()
}
if (typeof encoding === 'function') {
cb = encoding
}
const jsonData = (this._jsonBuffer + chunk).split('\n')
this._jsonBuffer = jsonData.pop()
for (let i = 0; i < jsonData.length; i++) {
try {
// JSON.parse can throw, emit an error on that
super.write(JSON.parse(jsonData[i]))
} catch (er) {
this.emit('error', er)
continue
}
}
if (cb)
cb()
}
}
```

155
backend/apis/nodejs/node_modules/minizlib/node_modules/minipass/index.d.ts generated vendored Normal file
View File

@ -0,0 +1,155 @@
/// <reference types="node" />
import { EventEmitter } from 'events'
import { Stream } from 'stream'
declare namespace Minipass {
type Encoding = BufferEncoding | 'buffer' | null
interface Writable extends EventEmitter {
end(): any
write(chunk: any, ...args: any[]): any
}
interface Readable extends EventEmitter {
pause(): any
resume(): any
pipe(): any
}
interface Pipe<R, W> {
src: Minipass<R, W>
dest: Writable
opts: PipeOptions
}
type DualIterable<T> = Iterable<T> & AsyncIterable<T>
type ContiguousData = Buffer | ArrayBufferLike | ArrayBufferView | string
type BufferOrString = Buffer | string
interface StringOptions {
encoding: BufferEncoding
objectMode?: boolean
async?: boolean
}
interface BufferOptions {
encoding?: null | 'buffer'
objectMode?: boolean
async?: boolean
}
interface ObjectModeOptions {
objectMode: true
async?: boolean
}
interface PipeOptions {
end?: boolean
proxyErrors?: boolean
}
type Options<T> = T extends string
? StringOptions
: T extends Buffer
? BufferOptions
: ObjectModeOptions
}
declare class Minipass<
RType extends any = Buffer,
WType extends any = RType extends Minipass.BufferOrString
? Minipass.ContiguousData
: RType
>
extends Stream
implements Minipass.DualIterable<RType>
{
static isStream(stream: any): stream is Minipass.Readable | Minipass.Writable
readonly bufferLength: number
readonly flowing: boolean
readonly writable: boolean
readonly readable: boolean
readonly paused: boolean
readonly emittedEnd: boolean
readonly destroyed: boolean
/**
* Not technically private or readonly, but not safe to mutate.
*/
private readonly buffer: RType[]
private readonly pipes: Minipass.Pipe<RType, WType>[]
/**
* Technically writable, but mutating it can change the type,
* so is not safe to do in TypeScript.
*/
readonly objectMode: boolean
async: boolean
/**
* Note: encoding is not actually read-only, and setEncoding(enc)
* exists. However, this type definition will insist that TypeScript
* programs declare the type of a Minipass stream up front, and if
* that type is string, then an encoding MUST be set in the ctor. If
* the type is Buffer, then the encoding must be missing, or set to
* 'buffer' or null. If the type is anything else, then objectMode
* must be set in the constructor options. So there is effectively
* no allowed way that a TS program can set the encoding after
* construction, as doing so will destroy any hope of type safety.
* TypeScript does not provide many options for changing the type of
* an object at run-time, which is what changing the encoding does.
*/
readonly encoding: Minipass.Encoding
// setEncoding(encoding: Encoding): void
// Options required if not reading buffers
constructor(
...args: RType extends Buffer
? [] | [Minipass.Options<RType>]
: [Minipass.Options<RType>]
)
write(chunk: WType, cb?: () => void): boolean
write(chunk: WType, encoding?: Minipass.Encoding, cb?: () => void): boolean
read(size?: number): RType
end(cb?: () => void): this
end(chunk: any, cb?: () => void): this
end(chunk: any, encoding?: Minipass.Encoding, cb?: () => void): this
pause(): void
resume(): void
promise(): Promise<void>
collect(): Promise<RType[]>
concat(): RType extends Minipass.BufferOrString ? Promise<RType> : never
destroy(er?: any): void
pipe<W extends Minipass.Writable>(dest: W, opts?: Minipass.PipeOptions): W
unpipe<W extends Minipass.Writable>(dest: W): void
/**
* alias for on()
*/
addEventHandler(event: string, listener: (...args: any[]) => any): this
on(event: string, listener: (...args: any[]) => any): this
on(event: 'data', listener: (chunk: RType) => any): this
on(event: 'error', listener: (error: any) => any): this
on(
event:
| 'readable'
| 'drain'
| 'resume'
| 'end'
| 'prefinish'
| 'finish'
| 'close',
listener: () => any
): this
[Symbol.iterator](): Iterator<RType>
[Symbol.asyncIterator](): AsyncIterator<RType>
}
export = Minipass

649
backend/apis/nodejs/node_modules/minizlib/node_modules/minipass/index.js generated vendored Normal file
View File

@ -0,0 +1,649 @@
'use strict'
const proc = typeof process === 'object' && process ? process : {
stdout: null,
stderr: null,
}
const EE = require('events')
const Stream = require('stream')
const SD = require('string_decoder').StringDecoder
const EOF = Symbol('EOF')
const MAYBE_EMIT_END = Symbol('maybeEmitEnd')
const EMITTED_END = Symbol('emittedEnd')
const EMITTING_END = Symbol('emittingEnd')
const EMITTED_ERROR = Symbol('emittedError')
const CLOSED = Symbol('closed')
const READ = Symbol('read')
const FLUSH = Symbol('flush')
const FLUSHCHUNK = Symbol('flushChunk')
const ENCODING = Symbol('encoding')
const DECODER = Symbol('decoder')
const FLOWING = Symbol('flowing')
const PAUSED = Symbol('paused')
const RESUME = Symbol('resume')
const BUFFERLENGTH = Symbol('bufferLength')
const BUFFERPUSH = Symbol('bufferPush')
const BUFFERSHIFT = Symbol('bufferShift')
const OBJECTMODE = Symbol('objectMode')
const DESTROYED = Symbol('destroyed')
const EMITDATA = Symbol('emitData')
const EMITEND = Symbol('emitEnd')
const EMITEND2 = Symbol('emitEnd2')
const ASYNC = Symbol('async')
const defer = fn => Promise.resolve().then(fn)
// TODO remove when Node v8 support drops
const doIter = global._MP_NO_ITERATOR_SYMBOLS_ !== '1'
const ASYNCITERATOR = doIter && Symbol.asyncIterator
|| Symbol('asyncIterator not implemented')
const ITERATOR = doIter && Symbol.iterator
|| Symbol('iterator not implemented')
// events that mean 'the stream is over'
// these are treated specially, and re-emitted
// if they are listened for after emitting.
const isEndish = ev =>
ev === 'end' ||
ev === 'finish' ||
ev === 'prefinish'
const isArrayBuffer = b => b instanceof ArrayBuffer ||
typeof b === 'object' &&
b.constructor &&
b.constructor.name === 'ArrayBuffer' &&
b.byteLength >= 0
const isArrayBufferView = b => !Buffer.isBuffer(b) && ArrayBuffer.isView(b)
class Pipe {
constructor (src, dest, opts) {
this.src = src
this.dest = dest
this.opts = opts
this.ondrain = () => src[RESUME]()
dest.on('drain', this.ondrain)
}
unpipe () {
this.dest.removeListener('drain', this.ondrain)
}
// istanbul ignore next - only here for the prototype
proxyErrors () {}
end () {
this.unpipe()
if (this.opts.end)
this.dest.end()
}
}
class PipeProxyErrors extends Pipe {
unpipe () {
this.src.removeListener('error', this.proxyErrors)
super.unpipe()
}
constructor (src, dest, opts) {
super(src, dest, opts)
this.proxyErrors = er => dest.emit('error', er)
src.on('error', this.proxyErrors)
}
}
module.exports = class Minipass extends Stream {
constructor (options) {
super()
this[FLOWING] = false
// whether we're explicitly paused
this[PAUSED] = false
this.pipes = []
this.buffer = []
this[OBJECTMODE] = options && options.objectMode || false
if (this[OBJECTMODE])
this[ENCODING] = null
else
this[ENCODING] = options && options.encoding || null
if (this[ENCODING] === 'buffer')
this[ENCODING] = null
this[ASYNC] = options && !!options.async || false
this[DECODER] = this[ENCODING] ? new SD(this[ENCODING]) : null
this[EOF] = false
this[EMITTED_END] = false
this[EMITTING_END] = false
this[CLOSED] = false
this[EMITTED_ERROR] = null
this.writable = true
this.readable = true
this[BUFFERLENGTH] = 0
this[DESTROYED] = false
}
get bufferLength () { return this[BUFFERLENGTH] }
get encoding () { return this[ENCODING] }
set encoding (enc) {
if (this[OBJECTMODE])
throw new Error('cannot set encoding in objectMode')
if (this[ENCODING] && enc !== this[ENCODING] &&
(this[DECODER] && this[DECODER].lastNeed || this[BUFFERLENGTH]))
throw new Error('cannot change encoding')
if (this[ENCODING] !== enc) {
this[DECODER] = enc ? new SD(enc) : null
if (this.buffer.length)
this.buffer = this.buffer.map(chunk => this[DECODER].write(chunk))
}
this[ENCODING] = enc
}
setEncoding (enc) {
this.encoding = enc
}
get objectMode () { return this[OBJECTMODE] }
set objectMode (om) { this[OBJECTMODE] = this[OBJECTMODE] || !!om }
get ['async'] () { return this[ASYNC] }
set ['async'] (a) { this[ASYNC] = this[ASYNC] || !!a }
write (chunk, encoding, cb) {
if (this[EOF])
throw new Error('write after end')
if (this[DESTROYED]) {
this.emit('error', Object.assign(
new Error('Cannot call write after a stream was destroyed'),
{ code: 'ERR_STREAM_DESTROYED' }
))
return true
}
if (typeof encoding === 'function')
cb = encoding, encoding = 'utf8'
if (!encoding)
encoding = 'utf8'
const fn = this[ASYNC] ? defer : f => f()
// convert array buffers and typed array views into buffers
// at some point in the future, we may want to do the opposite!
// leave strings and buffers as-is
// anything else switches us into object mode
if (!this[OBJECTMODE] && !Buffer.isBuffer(chunk)) {
if (isArrayBufferView(chunk))
chunk = Buffer.from(chunk.buffer, chunk.byteOffset, chunk.byteLength)
else if (isArrayBuffer(chunk))
chunk = Buffer.from(chunk)
else if (typeof chunk !== 'string')
// use the setter so we throw if we have encoding set
this.objectMode = true
}
// handle object mode up front, since it's simpler
// this yields better performance, fewer checks later.
if (this[OBJECTMODE]) {
/* istanbul ignore if - maybe impossible? */
if (this.flowing && this[BUFFERLENGTH] !== 0)
this[FLUSH](true)
if (this.flowing)
this.emit('data', chunk)
else
this[BUFFERPUSH](chunk)
if (this[BUFFERLENGTH] !== 0)
this.emit('readable')
if (cb)
fn(cb)
return this.flowing
}
// at this point the chunk is a buffer or string
// don't buffer it up or send it to the decoder
if (!chunk.length) {
if (this[BUFFERLENGTH] !== 0)
this.emit('readable')
if (cb)
fn(cb)
return this.flowing
}
// fast-path writing strings of same encoding to a stream with
// an empty buffer, skipping the buffer/decoder dance
if (typeof chunk === 'string' &&
// unless it is a string already ready for us to use
!(encoding === this[ENCODING] && !this[DECODER].lastNeed)) {
chunk = Buffer.from(chunk, encoding)
}
if (Buffer.isBuffer(chunk) && this[ENCODING])
chunk = this[DECODER].write(chunk)
// Note: flushing CAN potentially switch us into not-flowing mode
if (this.flowing && this[BUFFERLENGTH] !== 0)
this[FLUSH](true)
if (this.flowing)
this.emit('data', chunk)
else
this[BUFFERPUSH](chunk)
if (this[BUFFERLENGTH] !== 0)
this.emit('readable')
if (cb)
fn(cb)
return this.flowing
}
read (n) {
if (this[DESTROYED])
return null
if (this[BUFFERLENGTH] === 0 || n === 0 || n > this[BUFFERLENGTH]) {
this[MAYBE_EMIT_END]()
return null
}
if (this[OBJECTMODE])
n = null
if (this.buffer.length > 1 && !this[OBJECTMODE]) {
if (this.encoding)
this.buffer = [this.buffer.join('')]
else
this.buffer = [Buffer.concat(this.buffer, this[BUFFERLENGTH])]
}
const ret = this[READ](n || null, this.buffer[0])
this[MAYBE_EMIT_END]()
return ret
}
[READ] (n, chunk) {
if (n === chunk.length || n === null)
this[BUFFERSHIFT]()
else {
this.buffer[0] = chunk.slice(n)
chunk = chunk.slice(0, n)
this[BUFFERLENGTH] -= n
}
this.emit('data', chunk)
if (!this.buffer.length && !this[EOF])
this.emit('drain')
return chunk
}
end (chunk, encoding, cb) {
if (typeof chunk === 'function')
cb = chunk, chunk = null
if (typeof encoding === 'function')
cb = encoding, encoding = 'utf8'
if (chunk)
this.write(chunk, encoding)
if (cb)
this.once('end', cb)
this[EOF] = true
this.writable = false
// if we haven't written anything, then go ahead and emit,
// even if we're not reading.
// we'll re-emit if a new 'end' listener is added anyway.
// This makes MP more suitable to write-only use cases.
if (this.flowing || !this[PAUSED])
this[MAYBE_EMIT_END]()
return this
}
// don't let the internal resume be overwritten
[RESUME] () {
if (this[DESTROYED])
return
this[PAUSED] = false
this[FLOWING] = true
this.emit('resume')
if (this.buffer.length)
this[FLUSH]()
else if (this[EOF])
this[MAYBE_EMIT_END]()
else
this.emit('drain')
}
resume () {
return this[RESUME]()
}
pause () {
this[FLOWING] = false
this[PAUSED] = true
}
get destroyed () {
return this[DESTROYED]
}
get flowing () {
return this[FLOWING]
}
get paused () {
return this[PAUSED]
}
[BUFFERPUSH] (chunk) {
if (this[OBJECTMODE])
this[BUFFERLENGTH] += 1
else
this[BUFFERLENGTH] += chunk.length
this.buffer.push(chunk)
}
[BUFFERSHIFT] () {
if (this.buffer.length) {
if (this[OBJECTMODE])
this[BUFFERLENGTH] -= 1
else
this[BUFFERLENGTH] -= this.buffer[0].length
}
return this.buffer.shift()
}
[FLUSH] (noDrain) {
do {} while (this[FLUSHCHUNK](this[BUFFERSHIFT]()))
if (!noDrain && !this.buffer.length && !this[EOF])
this.emit('drain')
}
[FLUSHCHUNK] (chunk) {
return chunk ? (this.emit('data', chunk), this.flowing) : false
}
pipe (dest, opts) {
if (this[DESTROYED])
return
const ended = this[EMITTED_END]
opts = opts || {}
if (dest === proc.stdout || dest === proc.stderr)
opts.end = false
else
opts.end = opts.end !== false
opts.proxyErrors = !!opts.proxyErrors
// piping an ended stream ends immediately
if (ended) {
if (opts.end)
dest.end()
} else {
this.pipes.push(!opts.proxyErrors ? new Pipe(this, dest, opts)
: new PipeProxyErrors(this, dest, opts))
if (this[ASYNC])
defer(() => this[RESUME]())
else
this[RESUME]()
}
return dest
}
unpipe (dest) {
const p = this.pipes.find(p => p.dest === dest)
if (p) {
this.pipes.splice(this.pipes.indexOf(p), 1)
p.unpipe()
}
}
addListener (ev, fn) {
return this.on(ev, fn)
}
on (ev, fn) {
const ret = super.on(ev, fn)
if (ev === 'data' && !this.pipes.length && !this.flowing)
this[RESUME]()
else if (ev === 'readable' && this[BUFFERLENGTH] !== 0)
super.emit('readable')
else if (isEndish(ev) && this[EMITTED_END]) {
super.emit(ev)
this.removeAllListeners(ev)
} else if (ev === 'error' && this[EMITTED_ERROR]) {
if (this[ASYNC])
defer(() => fn.call(this, this[EMITTED_ERROR]))
else
fn.call(this, this[EMITTED_ERROR])
}
return ret
}
get emittedEnd () {
return this[EMITTED_END]
}
[MAYBE_EMIT_END] () {
if (!this[EMITTING_END] &&
!this[EMITTED_END] &&
!this[DESTROYED] &&
this.buffer.length === 0 &&
this[EOF]) {
this[EMITTING_END] = true
this.emit('end')
this.emit('prefinish')
this.emit('finish')
if (this[CLOSED])
this.emit('close')
this[EMITTING_END] = false
}
}
emit (ev, data, ...extra) {
// error and close are only events allowed after calling destroy()
if (ev !== 'error' && ev !== 'close' && ev !== DESTROYED && this[DESTROYED])
return
else if (ev === 'data') {
return !data ? false
: this[ASYNC] ? defer(() => this[EMITDATA](data))
: this[EMITDATA](data)
} else if (ev === 'end') {
return this[EMITEND]()
} else if (ev === 'close') {
this[CLOSED] = true
// don't emit close before 'end' and 'finish'
if (!this[EMITTED_END] && !this[DESTROYED])
return
const ret = super.emit('close')
this.removeAllListeners('close')
return ret
} else if (ev === 'error') {
this[EMITTED_ERROR] = data
const ret = super.emit('error', data)
this[MAYBE_EMIT_END]()
return ret
} else if (ev === 'resume') {
const ret = super.emit('resume')
this[MAYBE_EMIT_END]()
return ret
} else if (ev === 'finish' || ev === 'prefinish') {
const ret = super.emit(ev)
this.removeAllListeners(ev)
return ret
}
// Some other unknown event
const ret = super.emit(ev, data, ...extra)
this[MAYBE_EMIT_END]()
return ret
}
[EMITDATA] (data) {
for (const p of this.pipes) {
if (p.dest.write(data) === false)
this.pause()
}
const ret = super.emit('data', data)
this[MAYBE_EMIT_END]()
return ret
}
[EMITEND] () {
if (this[EMITTED_END])
return
this[EMITTED_END] = true
this.readable = false
if (this[ASYNC])
defer(() => this[EMITEND2]())
else
this[EMITEND2]()
}
[EMITEND2] () {
if (this[DECODER]) {
const data = this[DECODER].end()
if (data) {
for (const p of this.pipes) {
p.dest.write(data)
}
super.emit('data', data)
}
}
for (const p of this.pipes) {
p.end()
}
const ret = super.emit('end')
this.removeAllListeners('end')
return ret
}
// const all = await stream.collect()
collect () {
const buf = []
if (!this[OBJECTMODE])
buf.dataLength = 0
// set the promise first, in case an error is raised
// by triggering the flow here.
const p = this.promise()
this.on('data', c => {
buf.push(c)
if (!this[OBJECTMODE])
buf.dataLength += c.length
})
return p.then(() => buf)
}
// const data = await stream.concat()
concat () {
return this[OBJECTMODE]
? Promise.reject(new Error('cannot concat in objectMode'))
: this.collect().then(buf =>
this[OBJECTMODE]
? Promise.reject(new Error('cannot concat in objectMode'))
: this[ENCODING] ? buf.join('') : Buffer.concat(buf, buf.dataLength))
}
// stream.promise().then(() => done, er => emitted error)
promise () {
return new Promise((resolve, reject) => {
this.on(DESTROYED, () => reject(new Error('stream destroyed')))
this.on('error', er => reject(er))
this.on('end', () => resolve())
})
}
// for await (let chunk of stream)
[ASYNCITERATOR] () {
const next = () => {
const res = this.read()
if (res !== null)
return Promise.resolve({ done: false, value: res })
if (this[EOF])
return Promise.resolve({ done: true })
let resolve = null
let reject = null
const onerr = er => {
this.removeListener('data', ondata)
this.removeListener('end', onend)
reject(er)
}
const ondata = value => {
this.removeListener('error', onerr)
this.removeListener('end', onend)
this.pause()
resolve({ value: value, done: !!this[EOF] })
}
const onend = () => {
this.removeListener('error', onerr)
this.removeListener('data', ondata)
resolve({ done: true })
}
const ondestroy = () => onerr(new Error('stream destroyed'))
return new Promise((res, rej) => {
reject = rej
resolve = res
this.once(DESTROYED, ondestroy)
this.once('error', onerr)
this.once('end', onend)
this.once('data', ondata)
})
}
return { next }
}
// for (let chunk of stream)
[ITERATOR] () {
const next = () => {
const value = this.read()
const done = value === null
return { value, done }
}
return { next }
}
destroy (er) {
if (this[DESTROYED]) {
if (er)
this.emit('error', er)
else
this.emit(DESTROYED)
return this
}
this[DESTROYED] = true
// throw away all buffered data, it's never coming out
this.buffer.length = 0
this[BUFFERLENGTH] = 0
if (typeof this.close === 'function' && !this[CLOSED])
this.close()
if (er)
this.emit('error', er)
else // if no error to emit, still reject pending promises
this.emit(DESTROYED)
return this
}
static isStream (s) {
return !!s && (s instanceof Minipass || s instanceof Stream ||
s instanceof EE && (
typeof s.pipe === 'function' || // readable
(typeof s.write === 'function' && typeof s.end === 'function') // writable
))
}
}

56
backend/apis/nodejs/node_modules/minizlib/node_modules/minipass/package.json generated vendored Normal file
View File

@ -0,0 +1,56 @@
{
"name": "minipass",
"version": "3.3.6",
"description": "minimal implementation of a PassThrough stream",
"main": "index.js",
"types": "index.d.ts",
"dependencies": {
"yallist": "^4.0.0"
},
"devDependencies": {
"@types/node": "^17.0.41",
"end-of-stream": "^1.4.0",
"prettier": "^2.6.2",
"tap": "^16.2.0",
"through2": "^2.0.3",
"ts-node": "^10.8.1",
"typescript": "^4.7.3"
},
"scripts": {
"test": "tap",
"preversion": "npm test",
"postversion": "npm publish",
"postpublish": "git push origin --follow-tags"
},
"repository": {
"type": "git",
"url": "git+https://github.com/isaacs/minipass.git"
},
"keywords": [
"passthrough",
"stream"
],
"author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
"license": "ISC",
"files": [
"index.d.ts",
"index.js"
],
"tap": {
"check-coverage": true
},
"engines": {
"node": ">=8"
},
"prettier": {
"semi": false,
"printWidth": 80,
"tabWidth": 2,
"useTabs": false,
"singleQuote": true,
"jsxSingleQuote": false,
"bracketSameLine": true,
"arrowParens": "avoid",
"endOfLine": "lf"
}
}

42
backend/apis/nodejs/node_modules/minizlib/package.json generated vendored Normal file
View File

@ -0,0 +1,42 @@
{
"name": "minizlib",
"version": "2.1.2",
"description": "A small fast zlib stream built on [minipass](http://npm.im/minipass) and Node.js's zlib binding.",
"main": "index.js",
"dependencies": {
"minipass": "^3.0.0",
"yallist": "^4.0.0"
},
"scripts": {
"test": "tap test/*.js --100 -J",
"preversion": "npm test",
"postversion": "npm publish",
"postpublish": "git push origin --all; git push origin --tags"
},
"repository": {
"type": "git",
"url": "git+https://github.com/isaacs/minizlib.git"
},
"keywords": [
"zlib",
"gzip",
"gunzip",
"deflate",
"inflate",
"compression",
"zip",
"unzip"
],
"author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
"license": "MIT",
"devDependencies": {
"tap": "^14.6.9"
},
"files": [
"index.js",
"constants.js"
],
"engines": {
"node": ">= 8"
}
}