- Migrated from https://github.com/Yetangitu/owncloud-apps
- substantial bit rot accrued in 4 years of non-maintenance which made Reader unusable - Reader now works reliably on public pages - or at least it _Works For Me™_ - Refactored a substantial part of the code to comply to the "current" (ha ha) Nextcloud API - Dropped Owncloud compatibility for lack of a testing installation - Dropped IE (<11) support - Dropped compatibility with older (<20) Nextcloud versions - Dropped app-specific ajax code, now handled by SettingsController - Updated dependencies where applicable
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137 changed files with 30984 additions and 2 deletions
159
vendor/bitjs/io/bytestream.js
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159
vendor/bitjs/io/bytestream.js
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/*
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* bytestream.js
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*
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* Provides readers for byte streams.
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*
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* Licensed under the MIT License
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*
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* Copyright(c) 2011 Google Inc.
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* Copyright(c) 2011 antimatter15
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*/
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var bitjs = bitjs || {};
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bitjs.io = bitjs.io || {};
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/**
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* This object allows you to peek and consume bytes as numbers and strings
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* out of an ArrayBuffer. In this buffer, everything must be byte-aligned.
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*/
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bitjs.io.ByteStream = class {
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/**
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* @param {ArrayBuffer} ab The ArrayBuffer object.
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* @param {number=} opt_offset The offset into the ArrayBuffer
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* @param {number=} opt_length The length of this BitStream
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*/
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constructor(ab, opt_offset, opt_length) {
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const offset = opt_offset || 0;
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const length = opt_length || ab.byteLength;
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this.bytes = new Uint8Array(ab, offset, length);
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this.ptr = 0;
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}
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/**
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* Peeks at the next n bytes as an unsigned number but does not advance the
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* pointer
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* TODO: This apparently cannot read more than 4 bytes as a number?
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* @param {number} n The number of bytes to peek at.
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* @return {number} The n bytes interpreted as an unsigned number.
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*/
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peekNumber(n) {
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// TODO: return error if n would go past the end of the stream?
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if (n <= 0 || typeof n != typeof 1) {
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return -1;
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}
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let result = 0;
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// read from last byte to first byte and roll them in
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let curByte = this.ptr + n - 1;
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while (curByte >= this.ptr) {
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result <<= 8;
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result |= this.bytes[curByte];
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--curByte;
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}
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return result;
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}
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/**
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* Returns the next n bytes as an unsigned number (or -1 on error)
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* and advances the stream pointer n bytes.
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* @param {number} n The number of bytes to read.
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* @return {number} The n bytes interpreted as an unsigned number.
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*/
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readNumber(n) {
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const num = this.peekNumber( n );
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this.ptr += n;
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return num;
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}
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/**
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* Returns the next n bytes as a signed number but does not advance the
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* pointer.
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* @param {number} n The number of bytes to read.
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* @return {number} The bytes interpreted as a signed number.
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*/
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peekSignedNumber(n) {
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let num = this.peekNumber(n);
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const HALF = Math.pow(2, (n * 8) - 1);
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const FULL = HALF * 2;
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if (num >= HALF) num -= FULL;
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return num;
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}
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/**
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* Returns the next n bytes as a signed number and advances the stream pointer.
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* @param {number} n The number of bytes to read.
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* @return {number} The bytes interpreted as a signed number.
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*/
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readSignedNumber(n) {
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const num = this.peekSignedNumber(n);
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this.ptr += n;
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return num;
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}
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/**
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* This returns n bytes as a sub-array, advancing the pointer if movePointers
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* is true.
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* @param {number} n The number of bytes to read.
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* @param {boolean} movePointers Whether to move the pointers.
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* @return {Uint8Array} The subarray.
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*/
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peekBytes(n, movePointers) {
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if (n <= 0 || typeof n != typeof 1) {
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return null;
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}
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const result = this.bytes.subarray(this.ptr, this.ptr + n);
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if (movePointers) {
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this.ptr += n;
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}
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return result;
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}
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/**
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* Reads the next n bytes as a sub-array.
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* @param {number} n The number of bytes to read.
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* @return {Uint8Array} The subarray.
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*/
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readBytes(n) {
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return this.peekBytes(n, true);
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}
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/**
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* Peeks at the next n bytes as a string but does not advance the pointer.
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* @param {number} n The number of bytes to peek at.
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* @return {string} The next n bytes as a string.
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*/
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peekString(n) {
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if (n <= 0 || typeof n != typeof 1) {
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return "";
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}
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let result = "";
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for (let p = this.ptr, end = this.ptr + n; p < end; ++p) {
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result += String.fromCharCode(this.bytes[p]);
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}
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return result;
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}
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/**
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* Returns the next n bytes as an ASCII string and advances the stream pointer
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* n bytes.
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* @param {number} n The number of bytes to read.
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* @return {string} The next n bytes as a string.
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*/
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readString(n) {
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const strToReturn = this.peekString(n);
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this.ptr += n;
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return strToReturn;
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}
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}
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