diff options
Diffstat (limited to 'g4f/Provider/npm/node_modules/undici/lib/fileapi')
5 files changed, 0 insertions, 1114 deletions
diff --git a/g4f/Provider/npm/node_modules/undici/lib/fileapi/encoding.js b/g4f/Provider/npm/node_modules/undici/lib/fileapi/encoding.js deleted file mode 100644 index 1d1d2b65..00000000 --- a/g4f/Provider/npm/node_modules/undici/lib/fileapi/encoding.js +++ /dev/null @@ -1,290 +0,0 @@ -'use strict' - -/** - * @see https://encoding.spec.whatwg.org/#concept-encoding-get - * @param {string|undefined} label - */ -function getEncoding (label) { - if (!label) { - return 'failure' - } - - // 1. Remove any leading and trailing ASCII whitespace from label. - // 2. If label is an ASCII case-insensitive match for any of the - // labels listed in the table below, then return the - // corresponding encoding; otherwise return failure. - switch (label.trim().toLowerCase()) { - case 'unicode-1-1-utf-8': - case 'unicode11utf8': - case 'unicode20utf8': - case 'utf-8': - case 'utf8': - case 'x-unicode20utf8': - return 'UTF-8' - case '866': - case 'cp866': - case 'csibm866': - case 'ibm866': - return 'IBM866' - case 'csisolatin2': - case 'iso-8859-2': - case 'iso-ir-101': - case 'iso8859-2': - case 'iso88592': - case 'iso_8859-2': - case 'iso_8859-2:1987': - case 'l2': - case 'latin2': - return 'ISO-8859-2' - case 'csisolatin3': - case 'iso-8859-3': - case 'iso-ir-109': - case 'iso8859-3': - case 'iso88593': - case 'iso_8859-3': - case 'iso_8859-3:1988': - case 'l3': - case 'latin3': - return 'ISO-8859-3' - case 'csisolatin4': - case 'iso-8859-4': - case 'iso-ir-110': - case 'iso8859-4': - case 'iso88594': - case 'iso_8859-4': - case 'iso_8859-4:1988': - case 'l4': - case 'latin4': - return 'ISO-8859-4' - case 'csisolatincyrillic': - case 'cyrillic': - case 'iso-8859-5': - case 'iso-ir-144': - case 'iso8859-5': - case 'iso88595': - case 'iso_8859-5': - case 'iso_8859-5:1988': - return 'ISO-8859-5' - case 'arabic': - case 'asmo-708': - case 'csiso88596e': - case 'csiso88596i': - case 'csisolatinarabic': - case 'ecma-114': - case 'iso-8859-6': - case 'iso-8859-6-e': - case 'iso-8859-6-i': - case 'iso-ir-127': - case 'iso8859-6': - case 'iso88596': - case 'iso_8859-6': - case 'iso_8859-6:1987': - return 'ISO-8859-6' - case 'csisolatingreek': - case 'ecma-118': - case 'elot_928': - case 'greek': - case 'greek8': - case 'iso-8859-7': - case 'iso-ir-126': - case 'iso8859-7': - case 'iso88597': - case 'iso_8859-7': - case 'iso_8859-7:1987': - case 'sun_eu_greek': - return 'ISO-8859-7' - case 'csiso88598e': - case 'csisolatinhebrew': - case 'hebrew': - case 'iso-8859-8': - case 'iso-8859-8-e': - case 'iso-ir-138': - case 'iso8859-8': - case 'iso88598': - case 'iso_8859-8': - case 'iso_8859-8:1988': - case 'visual': - return 'ISO-8859-8' - case 'csiso88598i': - case 'iso-8859-8-i': - case 'logical': - return 'ISO-8859-8-I' - case 'csisolatin6': - case 'iso-8859-10': - case 'iso-ir-157': - case 'iso8859-10': - case 'iso885910': - case 'l6': - case 'latin6': - return 'ISO-8859-10' - case 'iso-8859-13': - case 'iso8859-13': - case 'iso885913': - return 'ISO-8859-13' - case 'iso-8859-14': - case 'iso8859-14': - case 'iso885914': - return 'ISO-8859-14' - case 'csisolatin9': - case 'iso-8859-15': - case 'iso8859-15': - case 'iso885915': - case 'iso_8859-15': - case 'l9': - return 'ISO-8859-15' - case 'iso-8859-16': - return 'ISO-8859-16' - case 'cskoi8r': - case 'koi': - case 'koi8': - case 'koi8-r': - case 'koi8_r': - return 'KOI8-R' - case 'koi8-ru': - case 'koi8-u': - return 'KOI8-U' - case 'csmacintosh': - case 'mac': - case 'macintosh': - case 'x-mac-roman': - return 'macintosh' - case 'iso-8859-11': - case 'iso8859-11': - case 'iso885911': - case 'tis-620': - case 'windows-874': - return 'windows-874' - case 'cp1250': - case 'windows-1250': - case 'x-cp1250': - return 'windows-1250' - case 'cp1251': - case 'windows-1251': - case 'x-cp1251': - return 'windows-1251' - case 'ansi_x3.4-1968': - case 'ascii': - case 'cp1252': - case 'cp819': - case 'csisolatin1': - case 'ibm819': - case 'iso-8859-1': - case 'iso-ir-100': - case 'iso8859-1': - case 'iso88591': - case 'iso_8859-1': - case 'iso_8859-1:1987': - case 'l1': - case 'latin1': - case 'us-ascii': - case 'windows-1252': - case 'x-cp1252': - return 'windows-1252' - case 'cp1253': - case 'windows-1253': - case 'x-cp1253': - return 'windows-1253' - case 'cp1254': - case 'csisolatin5': - case 'iso-8859-9': - case 'iso-ir-148': - case 'iso8859-9': - case 'iso88599': - case 'iso_8859-9': - case 'iso_8859-9:1989': - case 'l5': - case 'latin5': - case 'windows-1254': - case 'x-cp1254': - return 'windows-1254' - case 'cp1255': - case 'windows-1255': - case 'x-cp1255': - return 'windows-1255' - case 'cp1256': - case 'windows-1256': - case 'x-cp1256': - return 'windows-1256' - case 'cp1257': - case 'windows-1257': - case 'x-cp1257': - return 'windows-1257' - case 'cp1258': - case 'windows-1258': - case 'x-cp1258': - return 'windows-1258' - case 'x-mac-cyrillic': - case 'x-mac-ukrainian': - return 'x-mac-cyrillic' - case 'chinese': - case 'csgb2312': - case 'csiso58gb231280': - case 'gb2312': - case 'gb_2312': - case 'gb_2312-80': - case 'gbk': - case 'iso-ir-58': - case 'x-gbk': - return 'GBK' - case 'gb18030': - return 'gb18030' - case 'big5': - case 'big5-hkscs': - case 'cn-big5': - case 'csbig5': - case 'x-x-big5': - return 'Big5' - case 'cseucpkdfmtjapanese': - case 'euc-jp': - case 'x-euc-jp': - return 'EUC-JP' - case 'csiso2022jp': - case 'iso-2022-jp': - return 'ISO-2022-JP' - case 'csshiftjis': - case 'ms932': - case 'ms_kanji': - case 'shift-jis': - case 'shift_jis': - case 'sjis': - case 'windows-31j': - case 'x-sjis': - return 'Shift_JIS' - case 'cseuckr': - case 'csksc56011987': - case 'euc-kr': - case 'iso-ir-149': - case 'korean': - case 'ks_c_5601-1987': - case 'ks_c_5601-1989': - case 'ksc5601': - case 'ksc_5601': - case 'windows-949': - return 'EUC-KR' - case 'csiso2022kr': - case 'hz-gb-2312': - case 'iso-2022-cn': - case 'iso-2022-cn-ext': - case 'iso-2022-kr': - case 'replacement': - return 'replacement' - case 'unicodefffe': - case 'utf-16be': - return 'UTF-16BE' - case 'csunicode': - case 'iso-10646-ucs-2': - case 'ucs-2': - case 'unicode': - case 'unicodefeff': - case 'utf-16': - case 'utf-16le': - return 'UTF-16LE' - case 'x-user-defined': - return 'x-user-defined' - default: return 'failure' - } -} - -module.exports = { - getEncoding -} diff --git a/g4f/Provider/npm/node_modules/undici/lib/fileapi/filereader.js b/g4f/Provider/npm/node_modules/undici/lib/fileapi/filereader.js deleted file mode 100644 index cd36a22f..00000000 --- a/g4f/Provider/npm/node_modules/undici/lib/fileapi/filereader.js +++ /dev/null @@ -1,344 +0,0 @@ -'use strict' - -const { - staticPropertyDescriptors, - readOperation, - fireAProgressEvent -} = require('./util') -const { - kState, - kError, - kResult, - kEvents, - kAborted -} = require('./symbols') -const { webidl } = require('../fetch/webidl') -const { kEnumerableProperty } = require('../core/util') - -class FileReader extends EventTarget { - constructor () { - super() - - this[kState] = 'empty' - this[kResult] = null - this[kError] = null - this[kEvents] = { - loadend: null, - error: null, - abort: null, - load: null, - progress: null, - loadstart: null - } - } - - /** - * @see https://w3c.github.io/FileAPI/#dfn-readAsArrayBuffer - * @param {import('buffer').Blob} blob - */ - readAsArrayBuffer (blob) { - webidl.brandCheck(this, FileReader) - - webidl.argumentLengthCheck(arguments, 1, { header: 'FileReader.readAsArrayBuffer' }) - - blob = webidl.converters.Blob(blob, { strict: false }) - - // The readAsArrayBuffer(blob) method, when invoked, - // must initiate a read operation for blob with ArrayBuffer. - readOperation(this, blob, 'ArrayBuffer') - } - - /** - * @see https://w3c.github.io/FileAPI/#readAsBinaryString - * @param {import('buffer').Blob} blob - */ - readAsBinaryString (blob) { - webidl.brandCheck(this, FileReader) - - webidl.argumentLengthCheck(arguments, 1, { header: 'FileReader.readAsBinaryString' }) - - blob = webidl.converters.Blob(blob, { strict: false }) - - // The readAsBinaryString(blob) method, when invoked, - // must initiate a read operation for blob with BinaryString. - readOperation(this, blob, 'BinaryString') - } - - /** - * @see https://w3c.github.io/FileAPI/#readAsDataText - * @param {import('buffer').Blob} blob - * @param {string?} encoding - */ - readAsText (blob, encoding = undefined) { - webidl.brandCheck(this, FileReader) - - webidl.argumentLengthCheck(arguments, 1, { header: 'FileReader.readAsText' }) - - blob = webidl.converters.Blob(blob, { strict: false }) - - if (encoding !== undefined) { - encoding = webidl.converters.DOMString(encoding) - } - - // The readAsText(blob, encoding) method, when invoked, - // must initiate a read operation for blob with Text and encoding. - readOperation(this, blob, 'Text', encoding) - } - - /** - * @see https://w3c.github.io/FileAPI/#dfn-readAsDataURL - * @param {import('buffer').Blob} blob - */ - readAsDataURL (blob) { - webidl.brandCheck(this, FileReader) - - webidl.argumentLengthCheck(arguments, 1, { header: 'FileReader.readAsDataURL' }) - - blob = webidl.converters.Blob(blob, { strict: false }) - - // The readAsDataURL(blob) method, when invoked, must - // initiate a read operation for blob with DataURL. - readOperation(this, blob, 'DataURL') - } - - /** - * @see https://w3c.github.io/FileAPI/#dfn-abort - */ - abort () { - // 1. If this's state is "empty" or if this's state is - // "done" set this's result to null and terminate - // this algorithm. - if (this[kState] === 'empty' || this[kState] === 'done') { - this[kResult] = null - return - } - - // 2. If this's state is "loading" set this's state to - // "done" and set this's result to null. - if (this[kState] === 'loading') { - this[kState] = 'done' - this[kResult] = null - } - - // 3. If there are any tasks from this on the file reading - // task source in an affiliated task queue, then remove - // those tasks from that task queue. - this[kAborted] = true - - // 4. Terminate the algorithm for the read method being processed. - // TODO - - // 5. Fire a progress event called abort at this. - fireAProgressEvent('abort', this) - - // 6. If this's state is not "loading", fire a progress - // event called loadend at this. - if (this[kState] !== 'loading') { - fireAProgressEvent('loadend', this) - } - } - - /** - * @see https://w3c.github.io/FileAPI/#dom-filereader-readystate - */ - get readyState () { - webidl.brandCheck(this, FileReader) - - switch (this[kState]) { - case 'empty': return this.EMPTY - case 'loading': return this.LOADING - case 'done': return this.DONE - } - } - - /** - * @see https://w3c.github.io/FileAPI/#dom-filereader-result - */ - get result () { - webidl.brandCheck(this, FileReader) - - // The result attribute’s getter, when invoked, must return - // this's result. - return this[kResult] - } - - /** - * @see https://w3c.github.io/FileAPI/#dom-filereader-error - */ - get error () { - webidl.brandCheck(this, FileReader) - - // The error attribute’s getter, when invoked, must return - // this's error. - return this[kError] - } - - get onloadend () { - webidl.brandCheck(this, FileReader) - - return this[kEvents].loadend - } - - set onloadend (fn) { - webidl.brandCheck(this, FileReader) - - if (this[kEvents].loadend) { - this.removeEventListener('loadend', this[kEvents].loadend) - } - - if (typeof fn === 'function') { - this[kEvents].loadend = fn - this.addEventListener('loadend', fn) - } else { - this[kEvents].loadend = null - } - } - - get onerror () { - webidl.brandCheck(this, FileReader) - - return this[kEvents].error - } - - set onerror (fn) { - webidl.brandCheck(this, FileReader) - - if (this[kEvents].error) { - this.removeEventListener('error', this[kEvents].error) - } - - if (typeof fn === 'function') { - this[kEvents].error = fn - this.addEventListener('error', fn) - } else { - this[kEvents].error = null - } - } - - get onloadstart () { - webidl.brandCheck(this, FileReader) - - return this[kEvents].loadstart - } - - set onloadstart (fn) { - webidl.brandCheck(this, FileReader) - - if (this[kEvents].loadstart) { - this.removeEventListener('loadstart', this[kEvents].loadstart) - } - - if (typeof fn === 'function') { - this[kEvents].loadstart = fn - this.addEventListener('loadstart', fn) - } else { - this[kEvents].loadstart = null - } - } - - get onprogress () { - webidl.brandCheck(this, FileReader) - - return this[kEvents].progress - } - - set onprogress (fn) { - webidl.brandCheck(this, FileReader) - - if (this[kEvents].progress) { - this.removeEventListener('progress', this[kEvents].progress) - } - - if (typeof fn === 'function') { - this[kEvents].progress = fn - this.addEventListener('progress', fn) - } else { - this[kEvents].progress = null - } - } - - get onload () { - webidl.brandCheck(this, FileReader) - - return this[kEvents].load - } - - set onload (fn) { - webidl.brandCheck(this, FileReader) - - if (this[kEvents].load) { - this.removeEventListener('load', this[kEvents].load) - } - - if (typeof fn === 'function') { - this[kEvents].load = fn - this.addEventListener('load', fn) - } else { - this[kEvents].load = null - } - } - - get onabort () { - webidl.brandCheck(this, FileReader) - - return this[kEvents].abort - } - - set onabort (fn) { - webidl.brandCheck(this, FileReader) - - if (this[kEvents].abort) { - this.removeEventListener('abort', this[kEvents].abort) - } - - if (typeof fn === 'function') { - this[kEvents].abort = fn - this.addEventListener('abort', fn) - } else { - this[kEvents].abort = null - } - } -} - -// https://w3c.github.io/FileAPI/#dom-filereader-empty -FileReader.EMPTY = FileReader.prototype.EMPTY = 0 -// https://w3c.github.io/FileAPI/#dom-filereader-loading -FileReader.LOADING = FileReader.prototype.LOADING = 1 -// https://w3c.github.io/FileAPI/#dom-filereader-done -FileReader.DONE = FileReader.prototype.DONE = 2 - -Object.defineProperties(FileReader.prototype, { - EMPTY: staticPropertyDescriptors, - LOADING: staticPropertyDescriptors, - DONE: staticPropertyDescriptors, - readAsArrayBuffer: kEnumerableProperty, - readAsBinaryString: kEnumerableProperty, - readAsText: kEnumerableProperty, - readAsDataURL: kEnumerableProperty, - abort: kEnumerableProperty, - readyState: kEnumerableProperty, - result: kEnumerableProperty, - error: kEnumerableProperty, - onloadstart: kEnumerableProperty, - onprogress: kEnumerableProperty, - onload: kEnumerableProperty, - onabort: kEnumerableProperty, - onerror: kEnumerableProperty, - onloadend: kEnumerableProperty, - [Symbol.toStringTag]: { - value: 'FileReader', - writable: false, - enumerable: false, - configurable: true - } -}) - -Object.defineProperties(FileReader, { - EMPTY: staticPropertyDescriptors, - LOADING: staticPropertyDescriptors, - DONE: staticPropertyDescriptors -}) - -module.exports = { - FileReader -} diff --git a/g4f/Provider/npm/node_modules/undici/lib/fileapi/progressevent.js b/g4f/Provider/npm/node_modules/undici/lib/fileapi/progressevent.js deleted file mode 100644 index 778cf224..00000000 --- a/g4f/Provider/npm/node_modules/undici/lib/fileapi/progressevent.js +++ /dev/null @@ -1,78 +0,0 @@ -'use strict' - -const { webidl } = require('../fetch/webidl') - -const kState = Symbol('ProgressEvent state') - -/** - * @see https://xhr.spec.whatwg.org/#progressevent - */ -class ProgressEvent extends Event { - constructor (type, eventInitDict = {}) { - type = webidl.converters.DOMString(type) - eventInitDict = webidl.converters.ProgressEventInit(eventInitDict ?? {}) - - super(type, eventInitDict) - - this[kState] = { - lengthComputable: eventInitDict.lengthComputable, - loaded: eventInitDict.loaded, - total: eventInitDict.total - } - } - - get lengthComputable () { - webidl.brandCheck(this, ProgressEvent) - - return this[kState].lengthComputable - } - - get loaded () { - webidl.brandCheck(this, ProgressEvent) - - return this[kState].loaded - } - - get total () { - webidl.brandCheck(this, ProgressEvent) - - return this[kState].total - } -} - -webidl.converters.ProgressEventInit = webidl.dictionaryConverter([ - { - key: 'lengthComputable', - converter: webidl.converters.boolean, - defaultValue: false - }, - { - key: 'loaded', - converter: webidl.converters['unsigned long long'], - defaultValue: 0 - }, - { - key: 'total', - converter: webidl.converters['unsigned long long'], - defaultValue: 0 - }, - { - key: 'bubbles', - converter: webidl.converters.boolean, - defaultValue: false - }, - { - key: 'cancelable', - converter: webidl.converters.boolean, - defaultValue: false - }, - { - key: 'composed', - converter: webidl.converters.boolean, - defaultValue: false - } -]) - -module.exports = { - ProgressEvent -} diff --git a/g4f/Provider/npm/node_modules/undici/lib/fileapi/symbols.js b/g4f/Provider/npm/node_modules/undici/lib/fileapi/symbols.js deleted file mode 100644 index dd11746d..00000000 --- a/g4f/Provider/npm/node_modules/undici/lib/fileapi/symbols.js +++ /dev/null @@ -1,10 +0,0 @@ -'use strict' - -module.exports = { - kState: Symbol('FileReader state'), - kResult: Symbol('FileReader result'), - kError: Symbol('FileReader error'), - kLastProgressEventFired: Symbol('FileReader last progress event fired timestamp'), - kEvents: Symbol('FileReader events'), - kAborted: Symbol('FileReader aborted') -} diff --git a/g4f/Provider/npm/node_modules/undici/lib/fileapi/util.js b/g4f/Provider/npm/node_modules/undici/lib/fileapi/util.js deleted file mode 100644 index 1d10899c..00000000 --- a/g4f/Provider/npm/node_modules/undici/lib/fileapi/util.js +++ /dev/null @@ -1,392 +0,0 @@ -'use strict' - -const { - kState, - kError, - kResult, - kAborted, - kLastProgressEventFired -} = require('./symbols') -const { ProgressEvent } = require('./progressevent') -const { getEncoding } = require('./encoding') -const { DOMException } = require('../fetch/constants') -const { serializeAMimeType, parseMIMEType } = require('../fetch/dataURL') -const { types } = require('util') -const { StringDecoder } = require('string_decoder') -const { btoa } = require('buffer') - -/** @type {PropertyDescriptor} */ -const staticPropertyDescriptors = { - enumerable: true, - writable: false, - configurable: false -} - -/** - * @see https://w3c.github.io/FileAPI/#readOperation - * @param {import('./filereader').FileReader} fr - * @param {import('buffer').Blob} blob - * @param {string} type - * @param {string?} encodingName - */ -function readOperation (fr, blob, type, encodingName) { - // 1. If fr’s state is "loading", throw an InvalidStateError - // DOMException. - if (fr[kState] === 'loading') { - throw new DOMException('Invalid state', 'InvalidStateError') - } - - // 2. Set fr’s state to "loading". - fr[kState] = 'loading' - - // 3. Set fr’s result to null. - fr[kResult] = null - - // 4. Set fr’s error to null. - fr[kError] = null - - // 5. Let stream be the result of calling get stream on blob. - /** @type {import('stream/web').ReadableStream} */ - const stream = blob.stream() - - // 6. Let reader be the result of getting a reader from stream. - const reader = stream.getReader() - - // 7. Let bytes be an empty byte sequence. - /** @type {Uint8Array[]} */ - const bytes = [] - - // 8. Let chunkPromise be the result of reading a chunk from - // stream with reader. - let chunkPromise = reader.read() - - // 9. Let isFirstChunk be true. - let isFirstChunk = true - - // 10. In parallel, while true: - // Note: "In parallel" just means non-blocking - // Note 2: readOperation itself cannot be async as double - // reading the body would then reject the promise, instead - // of throwing an error. - ;(async () => { - while (!fr[kAborted]) { - // 1. Wait for chunkPromise to be fulfilled or rejected. - try { - const { done, value } = await chunkPromise - - // 2. If chunkPromise is fulfilled, and isFirstChunk is - // true, queue a task to fire a progress event called - // loadstart at fr. - if (isFirstChunk && !fr[kAborted]) { - queueMicrotask(() => { - fireAProgressEvent('loadstart', fr) - }) - } - - // 3. Set isFirstChunk to false. - isFirstChunk = false - - // 4. If chunkPromise is fulfilled with an object whose - // done property is false and whose value property is - // a Uint8Array object, run these steps: - if (!done && types.isUint8Array(value)) { - // 1. Let bs be the byte sequence represented by the - // Uint8Array object. - - // 2. Append bs to bytes. - bytes.push(value) - - // 3. If roughly 50ms have passed since these steps - // were last invoked, queue a task to fire a - // progress event called progress at fr. - if ( - ( - fr[kLastProgressEventFired] === undefined || - Date.now() - fr[kLastProgressEventFired] >= 50 - ) && - !fr[kAborted] - ) { - fr[kLastProgressEventFired] = Date.now() - queueMicrotask(() => { - fireAProgressEvent('progress', fr) - }) - } - - // 4. Set chunkPromise to the result of reading a - // chunk from stream with reader. - chunkPromise = reader.read() - } else if (done) { - // 5. Otherwise, if chunkPromise is fulfilled with an - // object whose done property is true, queue a task - // to run the following steps and abort this algorithm: - queueMicrotask(() => { - // 1. Set fr’s state to "done". - fr[kState] = 'done' - - // 2. Let result be the result of package data given - // bytes, type, blob’s type, and encodingName. - try { - const result = packageData(bytes, type, blob.type, encodingName) - - // 4. Else: - - if (fr[kAborted]) { - return - } - - // 1. Set fr’s result to result. - fr[kResult] = result - - // 2. Fire a progress event called load at the fr. - fireAProgressEvent('load', fr) - } catch (error) { - // 3. If package data threw an exception error: - - // 1. Set fr’s error to error. - fr[kError] = error - - // 2. Fire a progress event called error at fr. - fireAProgressEvent('error', fr) - } - - // 5. If fr’s state is not "loading", fire a progress - // event called loadend at the fr. - if (fr[kState] !== 'loading') { - fireAProgressEvent('loadend', fr) - } - }) - - break - } - } catch (error) { - if (fr[kAborted]) { - return - } - - // 6. Otherwise, if chunkPromise is rejected with an - // error error, queue a task to run the following - // steps and abort this algorithm: - queueMicrotask(() => { - // 1. Set fr’s state to "done". - fr[kState] = 'done' - - // 2. Set fr’s error to error. - fr[kError] = error - - // 3. Fire a progress event called error at fr. - fireAProgressEvent('error', fr) - - // 4. If fr’s state is not "loading", fire a progress - // event called loadend at fr. - if (fr[kState] !== 'loading') { - fireAProgressEvent('loadend', fr) - } - }) - - break - } - } - })() -} - -/** - * @see https://w3c.github.io/FileAPI/#fire-a-progress-event - * @see https://dom.spec.whatwg.org/#concept-event-fire - * @param {string} e The name of the event - * @param {import('./filereader').FileReader} reader - */ -function fireAProgressEvent (e, reader) { - // The progress event e does not bubble. e.bubbles must be false - // The progress event e is NOT cancelable. e.cancelable must be false - const event = new ProgressEvent(e, { - bubbles: false, - cancelable: false - }) - - reader.dispatchEvent(event) -} - -/** - * @see https://w3c.github.io/FileAPI/#blob-package-data - * @param {Uint8Array[]} bytes - * @param {string} type - * @param {string?} mimeType - * @param {string?} encodingName - */ -function packageData (bytes, type, mimeType, encodingName) { - // 1. A Blob has an associated package data algorithm, given - // bytes, a type, a optional mimeType, and a optional - // encodingName, which switches on type and runs the - // associated steps: - - switch (type) { - case 'DataURL': { - // 1. Return bytes as a DataURL [RFC2397] subject to - // the considerations below: - // * Use mimeType as part of the Data URL if it is - // available in keeping with the Data URL - // specification [RFC2397]. - // * If mimeType is not available return a Data URL - // without a media-type. [RFC2397]. - - // https://datatracker.ietf.org/doc/html/rfc2397#section-3 - // dataurl := "data:" [ mediatype ] [ ";base64" ] "," data - // mediatype := [ type "/" subtype ] *( ";" parameter ) - // data := *urlchar - // parameter := attribute "=" value - let dataURL = 'data:' - - const parsed = parseMIMEType(mimeType || 'application/octet-stream') - - if (parsed !== 'failure') { - dataURL += serializeAMimeType(parsed) - } - - dataURL += ';base64,' - - const decoder = new StringDecoder('latin1') - - for (const chunk of bytes) { - dataURL += btoa(decoder.write(chunk)) - } - - dataURL += btoa(decoder.end()) - - return dataURL - } - case 'Text': { - // 1. Let encoding be failure - let encoding = 'failure' - - // 2. If the encodingName is present, set encoding to the - // result of getting an encoding from encodingName. - if (encodingName) { - encoding = getEncoding(encodingName) - } - - // 3. If encoding is failure, and mimeType is present: - if (encoding === 'failure' && mimeType) { - // 1. Let type be the result of parse a MIME type - // given mimeType. - const type = parseMIMEType(mimeType) - - // 2. If type is not failure, set encoding to the result - // of getting an encoding from type’s parameters["charset"]. - if (type !== 'failure') { - encoding = getEncoding(type.parameters.get('charset')) - } - } - - // 4. If encoding is failure, then set encoding to UTF-8. - if (encoding === 'failure') { - encoding = 'UTF-8' - } - - // 5. Decode bytes using fallback encoding encoding, and - // return the result. - return decode(bytes, encoding) - } - case 'ArrayBuffer': { - // Return a new ArrayBuffer whose contents are bytes. - const sequence = combineByteSequences(bytes) - - return sequence.buffer - } - case 'BinaryString': { - // Return bytes as a binary string, in which every byte - // is represented by a code unit of equal value [0..255]. - let binaryString = '' - - const decoder = new StringDecoder('latin1') - - for (const chunk of bytes) { - binaryString += decoder.write(chunk) - } - - binaryString += decoder.end() - - return binaryString - } - } -} - -/** - * @see https://encoding.spec.whatwg.org/#decode - * @param {Uint8Array[]} ioQueue - * @param {string} encoding - */ -function decode (ioQueue, encoding) { - const bytes = combineByteSequences(ioQueue) - - // 1. Let BOMEncoding be the result of BOM sniffing ioQueue. - const BOMEncoding = BOMSniffing(bytes) - - let slice = 0 - - // 2. If BOMEncoding is non-null: - if (BOMEncoding !== null) { - // 1. Set encoding to BOMEncoding. - encoding = BOMEncoding - - // 2. Read three bytes from ioQueue, if BOMEncoding is - // UTF-8; otherwise read two bytes. - // (Do nothing with those bytes.) - slice = BOMEncoding === 'UTF-8' ? 3 : 2 - } - - // 3. Process a queue with an instance of encoding’s - // decoder, ioQueue, output, and "replacement". - - // 4. Return output. - - const sliced = bytes.slice(slice) - return new TextDecoder(encoding).decode(sliced) -} - -/** - * @see https://encoding.spec.whatwg.org/#bom-sniff - * @param {Uint8Array} ioQueue - */ -function BOMSniffing (ioQueue) { - // 1. Let BOM be the result of peeking 3 bytes from ioQueue, - // converted to a byte sequence. - const [a, b, c] = ioQueue - - // 2. For each of the rows in the table below, starting with - // the first one and going down, if BOM starts with the - // bytes given in the first column, then return the - // encoding given in the cell in the second column of that - // row. Otherwise, return null. - if (a === 0xEF && b === 0xBB && c === 0xBF) { - return 'UTF-8' - } else if (a === 0xFE && b === 0xFF) { - return 'UTF-16BE' - } else if (a === 0xFF && b === 0xFE) { - return 'UTF-16LE' - } - - return null -} - -/** - * @param {Uint8Array[]} sequences - */ -function combineByteSequences (sequences) { - const size = sequences.reduce((a, b) => { - return a + b.byteLength - }, 0) - - let offset = 0 - - return sequences.reduce((a, b) => { - a.set(b, offset) - offset += b.byteLength - return a - }, new Uint8Array(size)) -} - -module.exports = { - staticPropertyDescriptors, - readOperation, - fireAProgressEvent -} |