Index: node_modules/minizlib/LICENSE =================================================================== --- node_modules/minizlib/LICENSE (revision 81bc7da776d8cda42939ef4ab350c88d13b4941f) +++ node_modules/minizlib/LICENSE (revision 81bc7da776d8cda42939ef4ab350c88d13b4941f) @@ -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. +""" Index: node_modules/minizlib/README.md =================================================================== --- node_modules/minizlib/README.md (revision 81bc7da776d8cda42939ef4ab350c88d13b4941f) +++ node_modules/minizlib/README.md (revision 81bc7da776d8cda42939ef4ab350c88d13b4941f) @@ -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'. Index: node_modules/minizlib/constants.js =================================================================== --- node_modules/minizlib/constants.js (revision 81bc7da776d8cda42939ef4ab350c88d13b4941f) +++ node_modules/minizlib/constants.js (revision 81bc7da776d8cda42939ef4ab350c88d13b4941f) @@ -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)) Index: node_modules/minizlib/index.js =================================================================== --- node_modules/minizlib/index.js (revision 81bc7da776d8cda42939ef4ab350c88d13b4941f) +++ node_modules/minizlib/index.js (revision 81bc7da776d8cda42939ef4ab350c88d13b4941f) @@ -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') + } + } +} Index: node_modules/minizlib/package.json =================================================================== --- node_modules/minizlib/package.json (revision 81bc7da776d8cda42939ef4ab350c88d13b4941f) +++ node_modules/minizlib/package.json (revision 81bc7da776d8cda42939ef4ab350c88d13b4941f) @@ -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 (http://blog.izs.me/)", + "license": "MIT", + "devDependencies": { + "tap": "^14.6.9" + }, + "files": [ + "index.js", + "constants.js" + ], + "engines": { + "node": ">= 8" + } +}