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Code Issues Releases Wiki Activity

Changed backend for comic reader, now supports rar5

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This commit is contained in:
Ozzie Isaacs
2021-05-16 08:35:20 +02:00
parent d95838309e
commit 3e5c944365
16 changed files with 10137 additions and 5543 deletions
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449
cps/static/js/archive/archive.js
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@@ -1,449 +0,0 @@
/* alphanum.js (C) Brian Huisman
* Based on the Alphanum Algorithm by David Koelle
* The Alphanum Algorithm is discussed at http://www.DaveKoelle.com
*
* Distributed under same license as original
*
* Released under the MIT License - https://opensource.org/licenses/MIT
*
* 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.
*/
/* ********************************************************************
* Alphanum sort() function version - case insensitive
* - Slower, but easier to modify for arrays of objects which contain
* string properties
*
*/
/* exported alphanumCase */
function alphanumCase(a, b) {
function chunkify(t) {
var tz = new Array();
var x = 0, y = -1, n = 0, i, j;
while (i = (j = t.charAt(x++)).charCodeAt(0)) {
var m = (i === 46 || (i >= 48 && i <= 57));
// Compare has to be with != otherwise fails
if (m != n) {
tz[++y] = "";
n = m;
}
tz[y] += j;
}
return tz;
}
var aa = chunkify(a.filename.toLowerCase());
var bb = chunkify(b.filename.toLowerCase());
for (var x = 0; aa[x] && bb[x]; x++) {
if (aa[x] !== bb[x]) {
var c = Number(aa[x]), d = Number(bb[x]);
// Compare has to be with == otherwise fails
if (c == aa[x] && d == bb[x]) {
return c - d;
} else {
return (aa[x] > bb[x]) ? 1 : -1;
}
}
}
return aa.length - bb.length;
}
// ===========================================================================
/**
* archive.js
*
* Provides base functionality for unarchiving.
*
* Licensed under the MIT License
*
* Copyright(c) 2011 Google Inc.
*/
/* global bitjs, Uint8Array */
var bitjs = bitjs || {};
bitjs.archive = bitjs.archive || {};
(function() {
// ===========================================================================
// Stolen from Closure because it's the best way to do Java-like inheritance.
bitjs.base = function(me, optMethodName, varArgs) {
var caller = arguments.callee.caller;
if (caller.superClass_) {
// This is a constructor. Call the superclass constructor.
return caller.superClass_.constructor.apply(
me, Array.prototype.slice.call(arguments, 1));
}
var args = Array.prototype.slice.call(arguments, 2);
var foundCaller = false;
for (var ctor = me.constructor; ctor; ctor = ctor.superClass_ && ctor.superClass_.constructor) {
if (ctor.prototype[optMethodName] === caller) {
foundCaller = true;
} else if (foundCaller) {
return ctor.prototype[optMethodName].apply(me, args);
}
}
// If we did not find the caller in the prototype chain,
// then one of two things happened:
// 1) The caller is an instance method.
// 2) This method was not called by the right caller.
if (me[optMethodName] === caller) {
return me.constructor.prototype[optMethodName].apply(me, args);
} else {
throw Error(
"goog.base called from a method of one name " +
"to a method of a different name");
}
};
bitjs.inherits = function(childCtor, parentCtor) {
/** @constructor */
function TempCtor() {}
TempCtor.prototype = parentCtor.prototype;
childCtor.superClass_ = parentCtor.prototype;
childCtor.prototype = new TempCtor();
childCtor.prototype.constructor = childCtor;
};
// ===========================================================================
/**
* An unarchive event.
*
* @param {string} type The event type.
* @constructor
*/
bitjs.archive.UnarchiveEvent = function(type) {
/**
* The event type.
*
* @type {string}
*/
this.type = type;
};
/**
* The UnarchiveEvent types.
*/
bitjs.archive.UnarchiveEvent.Type = {
START: "start",
PROGRESS: "progress",
EXTRACT: "extract",
FINISH: "finish",
INFO: "info",
ERROR: "error"
};
/**
* Useful for passing info up to the client (for debugging).
*
* @param {string} msg The info message.
*/
bitjs.archive.UnarchiveInfoEvent = function(msg) {
bitjs.base(this, bitjs.archive.UnarchiveEvent.Type.INFO);
/**
* The information message.
*
* @type {string}
*/
this.msg = msg;
};
bitjs.inherits(bitjs.archive.UnarchiveInfoEvent, bitjs.archive.UnarchiveEvent);
/**
* An unrecoverable error has occured.
*
* @param {string} msg The error message.
*/
bitjs.archive.UnarchiveErrorEvent = function(msg) {
bitjs.base(this, bitjs.archive.UnarchiveEvent.Type.ERROR);
/**
* The information message.
*
* @type {string}
*/
this.msg = msg;
};
bitjs.inherits(bitjs.archive.UnarchiveErrorEvent, bitjs.archive.UnarchiveEvent);
/**
* Start event.
*
* @param {string} msg The info message.
*/
bitjs.archive.UnarchiveStartEvent = function() {
bitjs.base(this, bitjs.archive.UnarchiveEvent.Type.START);
};
bitjs.inherits(bitjs.archive.UnarchiveStartEvent, bitjs.archive.UnarchiveEvent);
/**
* Finish event.
*
* @param {string} msg The info message.
*/
bitjs.archive.UnarchiveFinishEvent = function() {
bitjs.base(this, bitjs.archive.UnarchiveEvent.Type.FINISH);
};
bitjs.inherits(bitjs.archive.UnarchiveFinishEvent, bitjs.archive.UnarchiveEvent);
/**
* Progress event.
*/
bitjs.archive.UnarchiveProgressEvent = function(
currentFilename,
currentFileNumber,
currentBytesUnarchivedInFile,
currentBytesUnarchived,
totalUncompressedBytesInArchive,
totalFilesInArchive) {
bitjs.base(this, bitjs.archive.UnarchiveEvent.Type.PROGRESS);
this.currentFilename = currentFilename;
this.currentFileNumber = currentFileNumber;
this.currentBytesUnarchivedInFile = currentBytesUnarchivedInFile;
this.totalFilesInArchive = totalFilesInArchive;
this.currentBytesUnarchived = currentBytesUnarchived;
this.totalUncompressedBytesInArchive = totalUncompressedBytesInArchive;
};
bitjs.inherits(bitjs.archive.UnarchiveProgressEvent, bitjs.archive.UnarchiveEvent);
/**
* All extracted files returned by an Unarchiver will implement
* the following interface:
*
* interface UnarchivedFile {
* string filename
* TypedArray fileData
* }
*
*/
/**
* Extract event.
*/
bitjs.archive.UnarchiveExtractEvent = function(unarchivedFile) {
bitjs.base(this, bitjs.archive.UnarchiveEvent.Type.EXTRACT);
/**
* @type {UnarchivedFile}
*/
this.unarchivedFile = unarchivedFile;
};
bitjs.inherits(bitjs.archive.UnarchiveExtractEvent, bitjs.archive.UnarchiveEvent);
/**
* Base class for all Unarchivers.
*
* @param {ArrayBuffer} arrayBuffer The Array Buffer.
* @param {string} optPathToBitJS Optional string for where the BitJS files are located.
* @constructor
*/
bitjs.archive.Unarchiver = function(arrayBuffer, optPathToBitJS) {
/**
* The ArrayBuffer object.
* @type {ArrayBuffer}
* @protected
*/
this.ab = arrayBuffer;
/**
* The path to the BitJS files.
* @type {string}
* @private
*/
this.pathToBitJS_ = optPathToBitJS || "/";
/**
* A map from event type to an array of listeners.
* @type {Map.<string, Array>}
*/
this.listeners_ = {};
for (var type in bitjs.archive.UnarchiveEvent.Type) {
this.listeners_[bitjs.archive.UnarchiveEvent.Type[type]] = [];
}
};
/**
* Private web worker initialized during start().
* @type {Worker}
* @private
*/
bitjs.archive.Unarchiver.prototype.worker_ = null;
/**
* This method must be overridden by the subclass to return the script filename.
* @return {string} The script filename.
* @protected.
*/
bitjs.archive.Unarchiver.prototype.getScriptFileName = function() {
throw "Subclasses of AbstractUnarchiver must overload getScriptFileName()";
};
/**
* Adds an event listener for UnarchiveEvents.
*
* @param {string} Event type.
* @param {function} An event handler function.
*/
bitjs.archive.Unarchiver.prototype.addEventListener = function(type, listener) {
if (type in this.listeners_) {
if (this.listeners_[type].indexOf(listener) === -1) {
this.listeners_[type].push(listener);
}
}
};
/**
* Removes an event listener.
*
* @param {string} Event type.
* @param {EventListener|function} An event listener or handler function.
*/
bitjs.archive.Unarchiver.prototype.removeEventListener = function(type, listener) {
if (type in this.listeners_) {
var index = this.listeners_[type].indexOf(listener);
if (index !== -1) {
this.listeners_[type].splice(index, 1);
}
}
};
/**
* Receive an event and pass it to the listener functions.
*
* @param {bitjs.archive.UnarchiveEvent} e
* @private
*/
bitjs.archive.Unarchiver.prototype.handleWorkerEvent_ = function(e) {
if ((e instanceof bitjs.archive.UnarchiveEvent || e.type) &&
this.listeners_[e.type] instanceof Array) {
this.listeners_[e.type].forEach(function (listener) {
listener(e);
});
if (e.type === bitjs.archive.UnarchiveEvent.Type.FINISH) {
this.worker_.terminate();
}
}
};
/**
* Starts the unarchive in a separate Web Worker thread and returns immediately.
*/
bitjs.archive.Unarchiver.prototype.start = function() {
var me = this;
var scriptFileName = this.pathToBitJS_ + this.getScriptFileName();
if (scriptFileName) {
this.worker_ = new Worker(scriptFileName);
this.worker_.onerror = function(e) {
throw e;
};
this.worker_.onmessage = function(e) {
if (typeof e.data !== "string") {
// Assume that it is an UnarchiveEvent. Some browsers preserve the 'type'
// so that instanceof UnarchiveEvent returns true, but others do not.
me.handleWorkerEvent_(e.data);
}
};
this.worker_.postMessage({file: this.ab});
}
};
/**
* Terminates the Web Worker for this Unarchiver and returns immediately.
*/
bitjs.archive.Unarchiver.prototype.stop = function() {
if (this.worker_) {
this.worker_.terminate();
}
};
/**
* Unzipper
* @extends {bitjs.archive.Unarchiver}
* @constructor
*/
bitjs.archive.Unzipper = function(arrayBuffer, optPathToBitJS) {
bitjs.base(this, arrayBuffer, optPathToBitJS);
};
bitjs.inherits(bitjs.archive.Unzipper, bitjs.archive.Unarchiver);
bitjs.archive.Unzipper.prototype.getScriptFileName = function() {
return "unzip.js";
};
/**
* Unrarrer
* @extends {bitjs.archive.Unarchiver}
* @constructor
*/
bitjs.archive.Unrarrer = function(arrayBuffer, optPathToBitJS) {
bitjs.base(this, arrayBuffer, optPathToBitJS);
};
bitjs.inherits(bitjs.archive.Unrarrer, bitjs.archive.Unarchiver);
bitjs.archive.Unrarrer.prototype.getScriptFileName = function() {
return "unrar.js";
};
/**
* Untarrer
* @extends {bitjs.archive.Unarchiver}
* @constructor
*/
bitjs.archive.Untarrer = function(arrayBuffer, optPathToBitJS) {
bitjs.base(this, arrayBuffer, optPathToBitJS);
};
bitjs.inherits(bitjs.archive.Untarrer, bitjs.archive.Unarchiver);
bitjs.archive.Untarrer.prototype.getScriptFileName = function() {
return "untar.js";
};
/**
* Factory method that creates an unarchiver based on the byte signature found
* in the arrayBuffer.
* @param {ArrayBuffer} ab
* @param {string=} optPathToBitJS Path to the unarchiver script files.
* @return {bitjs.archive.Unarchiver}
*/
bitjs.archive.GetUnarchiver = function(ab, optPathToBitJS) {
var unarchiver = null;
var pathToBitJS = optPathToBitJS || "";
var h = new Uint8Array(ab, 0, 10);
if (h[0] === 0x52 && h[1] === 0x61 && h[2] === 0x72 && h[3] === 0x21) { // Rar!
unarchiver = new bitjs.archive.Unrarrer(ab, pathToBitJS);
} else if (h[0] === 80 && h[1] === 75) { // PK (Zip)
unarchiver = new bitjs.archive.Unzipper(ab, pathToBitJS);
} else { // Try with tar
unarchiver = new bitjs.archive.Untarrer(ab, pathToBitJS);
}
return unarchiver;
};
})();

872
cps/static/js/archive/rarvm.js
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@@ -1,872 +0,0 @@
/**
* rarvm.js
*
* Licensed under the MIT License
*
* Copyright(c) 2017 Google Inc.
*/
/**
* CRC Implementation.
*/
/* global Uint8Array, Uint32Array, bitjs, DataView, mem */
/* exported MAXWINMASK, UnpackFilter */
function emptyArr(n, v) {
var arr = [];
for (var i = 0; i < n; i += 1) {
arr[i] = v;
}
return arr;
}
var CRCTab = emptyArr(256, 0);
function initCRC() {
for (var i = 0; i < 256; ++i) {
var c = i;
for (var j = 0; j < 8; ++j) {
// Read http://stackoverflow.com/questions/6798111/bitwise-operations-on-32-bit-unsigned-ints
// for the bitwise operator issue (JS interprets operands as 32-bit signed
// integers and we need to deal with unsigned ones here).
c = ((c & 1) ? ((c >>> 1) ^ 0xEDB88320) : (c >>> 1)) >>> 0;
}
CRCTab[i] = c;
}
}
/**
* @param {number} startCRC
* @param {Uint8Array} arr
* @return {number}
*/
function CRC(startCRC, arr) {
if (CRCTab[1] === 0) {
initCRC();
}
/*
#if defined(LITTLE_ENDIAN) && defined(PRESENT_INT32) && defined(ALLOW_NOT_ALIGNED_INT)
while (Size>0 && ((long)Data & 7))
{
StartCRC=CRCTab[(byte)(StartCRC^Data[0])]^(StartCRC>>8);
Size--;
Data++;
}
while (Size>=8)
{
StartCRC^=*(uint32 *)Data;
StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8);
StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8);
StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8);
StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8);
StartCRC^=*(uint32 *)(Data+4);
StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8);
StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8);
StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8);
StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8);
Data+=8;
Size-=8;
}
#endif
*/
for (var i = 0; i < arr.length; ++i) {
var byte = ((startCRC ^ arr[i]) >>> 0) & 0xff;
startCRC = (CRCTab[byte] ^ (startCRC >>> 8)) >>> 0;
}
return startCRC;
}
// ============================================================================================== //
/**
* RarVM Implementation.
*/
var VM_MEMSIZE = 0x40000;
var VM_MEMMASK = (VM_MEMSIZE - 1);
var VM_GLOBALMEMADDR = 0x3C000;
var VM_GLOBALMEMSIZE = 0x2000;
var VM_FIXEDGLOBALSIZE = 64;
var MAXWINSIZE = 0x400000;
var MAXWINMASK = (MAXWINSIZE - 1);
/**
*/
var VmCommands = {
VM_MOV: 0,
VM_CMP: 1,
VM_ADD: 2,
VM_SUB: 3,
VM_JZ: 4,
VM_JNZ: 5,
VM_INC: 6,
VM_DEC: 7,
VM_JMP: 8,
VM_XOR: 9,
VM_AND: 10,
VM_OR: 11,
VM_TEST: 12,
VM_JS: 13,
VM_JNS: 14,
VM_JB: 15,
VM_JBE: 16,
VM_JA: 17,
VM_JAE: 18,
VM_PUSH: 19,
VM_POP: 20,
VM_CALL: 21,
VM_RET: 22,
VM_NOT: 23,
VM_SHL: 24,
VM_SHR: 25,
VM_SAR: 26,
VM_NEG: 27,
VM_PUSHA: 28,
VM_POPA: 29,
VM_PUSHF: 30,
VM_POPF: 31,
VM_MOVZX: 32,
VM_MOVSX: 33,
VM_XCHG: 34,
VM_MUL: 35,
VM_DIV: 36,
VM_ADC: 37,
VM_SBB: 38,
VM_PRINT: 39,
/*
#ifdef VM_OPTIMIZE
VM_MOVB, VM_MOVD, VM_CMPB, VM_CMPD,
VM_ADDB, VM_ADDD, VM_SUBB, VM_SUBD, VM_INCB, VM_INCD, VM_DECB, VM_DECD,
VM_NEGB, VM_NEGD,
#endif
*/
// TODO: This enum value would be much larger if VM_OPTIMIZE.
VM_STANDARD: 40,
};
/**
*/
var VmStandardFilters = {
VMSF_NONE: 0,
VMSF_E8: 1,
VMSF_E8E9: 2,
VMSF_ITANIUM: 3,
VMSF_RGB: 4,
VMSF_AUDIO: 5,
VMSF_DELTA: 6,
VMSF_UPCASE: 7,
};
/**
*/
var VmFlags = {
VM_FC: 1,
VM_FZ: 2,
VM_FS: 0x80000000,
};
/**
*/
var VmOpType = {
VM_OPREG: 0,
VM_OPINT: 1,
VM_OPREGMEM: 2,
VM_OPNONE: 3,
};
/**
* Finds the key that maps to a given value in an object. This function is useful in debugging
* variables that use the above enums.
* @param {Object} obj
* @param {number} val
* @return {string} The key/enum value as a string.
*/
function findKeyForValue(obj, val) {
for (var key in obj) {
if (obj[key] === val) {
return key;
}
}
return null;
}
function getDebugString(obj, val) {
var s = "Unknown.";
if (obj === VmCommands) {
s = "VmCommands.";
} else if (obj === VmStandardFilters) {
s = "VmStandardFilters.";
} else if (obj === VmFlags) {
s = "VmOpType.";
} else if (obj === VmOpType) {
s = "VmOpType.";
}
return s + findKeyForValue(obj, val);
}
/**
* @struct
* @constructor
*/
var VmPreparedOperand = function() {
/** @type {VmOpType} */
this.Type;
/** @type {number} */
this.Data = 0;
/** @type {number} */
this.Base = 0;
// TODO: In C++ this is a uint*
/** @type {Array<number>} */
this.Addr = null;
};
/** @return {string} */
VmPreparedOperand.prototype.toString = function() {
if (this.Type === null) {
return "Error: Type was null in VmPreparedOperand";
}
return "{ " +
"Type: " + getDebugString(VmOpType, this.Type) +
", Data: " + this.Data +
", Base: " + this.Base +
" }";
};
/**
* @struct
* @constructor
*/
var VmPreparedCommand = function() {
/** @type {VmCommands} */
this.OpCode;
/** @type {boolean} */
this.ByteMode = false;
/** @type {VmPreparedOperand} */
this.Op1 = new VmPreparedOperand();
/** @type {VmPreparedOperand} */
this.Op2 = new VmPreparedOperand();
};
/** @return {string} */
VmPreparedCommand.prototype.toString = function(indent) {
if (this.OpCode === null) {
return "Error: OpCode was null in VmPreparedCommand";
}
indent = indent || "";
return indent + "{\n" +
indent + " OpCode: " + getDebugString(VmCommands, this.OpCode) + ",\n" +
indent + " ByteMode: " + this.ByteMode + ",\n" +
indent + " Op1: " + this.Op1.toString() + ",\n" +
indent + " Op2: " + this.Op2.toString() + ",\n" +
indent + "}";
};
/**
* @struct
* @constructor
*/
var VmPreparedProgram = function() {
/** @type {Array<VmPreparedCommand>} */
this.Cmd = [];
/** @type {Array<VmPreparedCommand>} */
this.AltCmd = null;
/** @type {Uint8Array} */
this.GlobalData = new Uint8Array();
/** @type {Uint8Array} */
this.StaticData = new Uint8Array(); // static data contained in DB operators
/** @type {Uint32Array} */
this.InitR = new Uint32Array(7);
/**
* A pointer to bytes that have been filtered by a program.
* @type {Uint8Array}
*/
this.FilteredData = null;
};
/** @return {string} */
VmPreparedProgram.prototype.toString = function() {
var s = "{\n Cmd: [\n";
for (var i = 0; i < this.Cmd.length; ++i) {
s += this.Cmd[i].toString(" ") + ",\n";
}
s += "],\n";
// TODO: Dump GlobalData, StaticData, InitR?
s += " }\n";
return s;
};
/**
* @struct
* @constructor
*/
var UnpackFilter = function() {
/** @type {number} */
this.BlockStart = 0;
/** @type {number} */
this.BlockLength = 0;
/** @type {number} */
this.ExecCount = 0;
/** @type {boolean} */
this.NextWindow = false;
// position of parent filter in Filters array used as prototype for filter
// in PrgStack array. Not defined for filters in Filters array.
/** @type {number} */
this.ParentFilter = null;
/** @type {VmPreparedProgram} */
this.Prg = new VmPreparedProgram();
};
var VMCF_OP0 = 0;
var VMCF_OP1 = 1;
var VMCF_OP2 = 2;
var VMCF_OPMASK = 3;
var VMCF_BYTEMODE = 4;
var VMCF_JUMP = 8;
var VMCF_PROC = 16;
var VMCF_USEFLAGS = 32;
var VMCF_CHFLAGS = 64;
var VmCmdFlags = [
/* VM_MOV */
VMCF_OP2 | VMCF_BYTEMODE,
/* VM_CMP */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_ADD */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_SUB */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_JZ */
VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS,
/* VM_JNZ */
VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS,
/* VM_INC */
VMCF_OP1 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_DEC */
VMCF_OP1 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_JMP */
VMCF_OP1 | VMCF_JUMP,
/* VM_XOR */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_AND */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_OR */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_TEST */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_JS */
VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS,
/* VM_JNS */
VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS,
/* VM_JB */
VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS,
/* VM_JBE */
VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS,
/* VM_JA */
VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS,
/* VM_JAE */
VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS,
/* VM_PUSH */
VMCF_OP1,
/* VM_POP */
VMCF_OP1,
/* VM_CALL */
VMCF_OP1 | VMCF_PROC,
/* VM_RET */
VMCF_OP0 | VMCF_PROC,
/* VM_NOT */
VMCF_OP1 | VMCF_BYTEMODE,
/* VM_SHL */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_SHR */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_SAR */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_NEG */
VMCF_OP1 | VMCF_BYTEMODE | VMCF_CHFLAGS,
/* VM_PUSHA */
VMCF_OP0,
/* VM_POPA */
VMCF_OP0,
/* VM_PUSHF */
VMCF_OP0 | VMCF_USEFLAGS,
/* VM_POPF */
VMCF_OP0 | VMCF_CHFLAGS,
/* VM_MOVZX */
VMCF_OP2,
/* VM_MOVSX */
VMCF_OP2,
/* VM_XCHG */
VMCF_OP2 | VMCF_BYTEMODE,
/* VM_MUL */
VMCF_OP2 | VMCF_BYTEMODE,
/* VM_DIV */
VMCF_OP2 | VMCF_BYTEMODE,
/* VM_ADC */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_USEFLAGS | VMCF_CHFLAGS,
/* VM_SBB */
VMCF_OP2 | VMCF_BYTEMODE | VMCF_USEFLAGS | VMCF_CHFLAGS,
/* VM_PRINT */
VMCF_OP0,
];
/**
* @param {number} length
* @param {number} crc
* @param {VmStandardFilters} type
* @struct
* @constructor
*/
var StandardFilterSignature = function(length, crc, type) {
/** @type {number} */
this.Length = length;
/** @type {number} */
this.CRC = crc;
/** @type {VmStandardFilters} */
this.Type = type;
};
/**
* @type {Array<StandardFilterSignature>}
*/
var StdList = [
new StandardFilterSignature(53, 0xad576887, VmStandardFilters.VMSF_E8),
new StandardFilterSignature(57, 0x3cd7e57e, VmStandardFilters.VMSF_E8E9),
new StandardFilterSignature(120, 0x3769893f, VmStandardFilters.VMSF_ITANIUM),
new StandardFilterSignature(29, 0x0e06077d, VmStandardFilters.VMSF_DELTA),
new StandardFilterSignature(149, 0x1c2c5dc8, VmStandardFilters.VMSF_RGB),
new StandardFilterSignature(216, 0xbc85e701, VmStandardFilters.VMSF_AUDIO),
new StandardFilterSignature(40, 0x46b9c560, VmStandardFilters.VMSF_UPCASE),
];
/**
* @constructor
*/
var RarVM = function() {
/** @private {Uint8Array} */
this.mem_ = null;
/** @private {Uint32Array<number>} */
this.R_ = new Uint32Array(8);
/** @private {number} */
this.flags_ = 0;
};
/**
* Initializes the memory of the VM.
*/
RarVM.prototype.init = function() {
if (!this.mem_) {
this.mem_ = new Uint8Array(VM_MEMSIZE);
}
};
/**
* @param {Uint8Array} code
* @return {VmStandardFilters}
*/
RarVM.prototype.isStandardFilter = function(code) {
var codeCRC = (CRC(0xffffffff, code, code.length) ^ 0xffffffff) >>> 0;
for (var i = 0; i < StdList.length; ++i) {
if (StdList[i].CRC === codeCRC && StdList[i].Length === code.length) {
return StdList[i].Type;
}
}
return VmStandardFilters.VMSF_NONE;
};
/**
* @param {VmPreparedOperand} op
* @param {boolean} byteMode
* @param {bitjs.io.BitStream} bstream A rtl bit stream.
*/
RarVM.prototype.decodeArg = function(op, byteMode, bstream) {
var data = bstream.peekBits(16);
if (data & 0x8000) {
op.Type = VmOpType.VM_OPREG; // Operand is register (R[0]..R[7])
bstream.readBits(1); // 1 flag bit and...
op.Data = bstream.readBits(3); // ... 3 register number bits
op.Addr = [this.R_[op.Data]]; // TODO &R[Op.Data] // Register address
} else {
if ((data & 0xc000) === 0) {
op.Type = VmOpType.VM_OPINT; // Operand is integer
bstream.readBits(2); // 2 flag bits
if (byteMode) {
op.Data = bstream.readBits(8); // Byte integer.
} else {
op.Data = RarVM.readData(bstream); // 32 bit integer.
}
} else {
// Operand is data addressed by register data, base address or both.
op.Type = VmOpType.VM_OPREGMEM;
if ((data & 0x2000) === 0) {
bstream.readBits(3); // 3 flag bits
// Base address is zero, just use the address from register.
op.Data = bstream.readBits(3); // (Data>>10)&7
op.Addr = [this.R_[op.Data]]; // TODO &R[op.Data]
op.Base = 0;
} else {
bstream.readBits(4); // 4 flag bits
if ((data & 0x1000) === 0) {
// Use both register and base address.
op.Data = bstream.readBits(3);
op.Addr = [this.R_[op.Data]]; // TODO &R[op.Data]
} else {
// Use base address only. Access memory by fixed address.
op.Data = 0;
}
op.Base = RarVM.readData(bstream); // Read base address.
}
}
}
};
/**
* @param {VmPreparedProgram} prg
*/
RarVM.prototype.execute = function(prg) {
this.R_.set(prg.InitR);
var globalSize = Math.min(prg.GlobalData.length, VM_GLOBALMEMSIZE);
if (globalSize) {
this.mem_.set(prg.GlobalData.subarray(0, globalSize), VM_GLOBALMEMADDR);
}
var staticSize = Math.min(prg.StaticData.length, VM_GLOBALMEMSIZE - globalSize);
if (staticSize) {
this.mem_.set(prg.StaticData.subarray(0, staticSize), VM_GLOBALMEMADDR + globalSize);
}
this.R_[7] = VM_MEMSIZE;
this.flags_ = 0;
var preparedCodes = prg.AltCmd ? prg.AltCmd : prg.Cmd;
if (prg.Cmd.length > 0 && !this.executeCode(preparedCodes)) {
// Invalid VM program. Let's replace it with 'return' command.
preparedCodes.OpCode = VmCommands.VM_RET;
}
var dataView = new DataView(this.mem_.buffer, VM_GLOBALMEMADDR);
var newBlockPos = dataView.getUint32(0x20, true /* little endian */ ) & VM_MEMMASK;
var newBlockSize = dataView.getUint32(0x1c, true /* little endian */ ) & VM_MEMMASK;
if (newBlockPos + newBlockSize >= VM_MEMSIZE) {
newBlockPos = newBlockSize = 0;
}
prg.FilteredData = this.mem_.subarray(newBlockPos, newBlockPos + newBlockSize);
prg.GlobalData = new Uint8Array(0);
var dataSize = Math.min(dataView.getUint32(0x30),
(VM_GLOBALMEMSIZE - VM_FIXEDGLOBALSIZE));
if (dataSize !== 0) {
var len = dataSize + VM_FIXEDGLOBALSIZE;
prg.GlobalData = new Uint8Array(len);
prg.GlobalData.set(mem.subarray(VM_GLOBALMEMADDR, VM_GLOBALMEMADDR + len));
}
};
/**
* @param {Array<VmPreparedCommand>} preparedCodes
* @return {boolean}
*/
RarVM.prototype.executeCode = function(preparedCodes) {
var codeIndex = 0;
var cmd = preparedCodes[codeIndex];
// TODO: Why is this an infinite loop instead of just returning
// when a VM_RET is hit?
while (1) {
switch (cmd.OpCode) {
case VmCommands.VM_RET:
if (this.R_[7] >= VM_MEMSIZE) {
return true;
}
//SET_IP(GET_VALUE(false,(uint *)&Mem[R[7] & VM_MEMMASK]));
this.R_[7] += 4;
continue;
case VmCommands.VM_STANDARD:
this.executeStandardFilter(cmd.Op1.Data);
break;
default:
console.error("RarVM OpCode not supported: " + getDebugString(VmCommands, cmd.OpCode));
break;
} // switch (cmd.OpCode)
codeIndex++;
cmd = preparedCodes[codeIndex];
}
};
/**
* @param {number} filterType
*/
RarVM.prototype.executeStandardFilter = function(filterType) {
switch (filterType) {
case VmStandardFilters.VMSF_DELTA:
var dataSize = this.R_[4];
var channels = this.R_[0];
var srcPos = 0;
var border = dataSize * 2;
//SET_VALUE(false,&Mem[VM_GLOBALMEMADDR+0x20],DataSize);
var dataView = new DataView(this.mem_.buffer, VM_GLOBALMEMADDR);
dataView.setUint32(0x20, dataSize, true /* little endian */ );
if (dataSize >= VM_GLOBALMEMADDR / 2) {
break;
}
// Bytes from same channels are grouped to continual data blocks,
// so we need to place them back to their interleaving positions.
for (var curChannel = 0; curChannel < channels; ++curChannel) {
var prevByte = 0;
for (var destPos = dataSize + curChannel; destPos < border; destPos += channels) {
prevByte = (prevByte - this.mem_[srcPos++]) & 0xff;
this.mem_[destPos] = prevByte;
}
}
break;
default:
console.error("RarVM Standard Filter not supported: " + getDebugString(VmStandardFilters, filterType));
break;
}
};
/**
* @param {Uint8Array} code
* @param {VmPreparedProgram} prg
*/
RarVM.prototype.prepare = function(code, prg) {
var codeSize = code.length;
var i;
var curCmd;
//InitBitInput();
//memcpy(InBuf,Code,Min(CodeSize,BitInput::MAX_SIZE));
var bstream = new bitjs.io.BitStream(code.buffer, true /* rtl */ );
// Calculate the single byte XOR checksum to check validity of VM code.
var xorSum = 0;
for (i = 1; i < codeSize; ++i) {
xorSum ^= code[i];
}
bstream.readBits(8);
prg.Cmd = []; // TODO: Is this right? I don't see it being done in rarvm.cpp.
// VM code is valid if equal.
if (xorSum === code[0]) {
var filterType = this.isStandardFilter(code);
if (filterType !== VmStandardFilters.VMSF_NONE) {
// VM code is found among standard filters.
curCmd = new VmPreparedCommand();
prg.Cmd.push(curCmd);
curCmd.OpCode = VmCommands.VM_STANDARD;
curCmd.Op1.Data = filterType;
// TODO: Addr=&CurCmd->Op1.Data
curCmd.Op1.Addr = [curCmd.Op1.Data];
curCmd.Op2.Addr = [null]; // &CurCmd->Op2.Data;
curCmd.Op1.Type = VmOpType.VM_OPNONE;
curCmd.Op2.Type = VmOpType.VM_OPNONE;
codeSize = 0;
}
var dataFlag = bstream.readBits(1);
// Read static data contained in DB operators. This data cannot be
// changed, it is a part of VM code, not a filter parameter.
if (dataFlag & 0x8000) {
var dataSize = RarVM.readData(bstream) + 1;
// TODO: This accesses the byte pointer of the bstream directly. Is that ok?
for (i = 0; i < bstream.bytePtr < codeSize && i < dataSize; ++i) {
// Append a byte to the program's static data.
var newStaticData = new Uint8Array(prg.StaticData.length + 1);
newStaticData.set(prg.StaticData);
newStaticData[newStaticData.length - 1] = bstream.readBits(8);
prg.StaticData = newStaticData;
}
}
while (bstream.bytePtr < codeSize) {
curCmd = new VmPreparedCommand();
prg.Cmd.push(curCmd); // Prg->Cmd.Add(1)
var flag = bstream.peekBits(1);
if (!flag) { // (Data&0x8000)==0
curCmd.OpCode = bstream.readBits(4);
} else {
curCmd.OpCode = (bstream.readBits(6) - 24);
}
if (VmCmdFlags[curCmd.OpCode] & VMCF_BYTEMODE) {
curCmd.ByteMode = (bstream.readBits(1) !== 0);
} else {
curCmd.ByteMode = 0;
}
curCmd.Op1.Type = VmOpType.VM_OPNONE;
curCmd.Op2.Type = VmOpType.VM_OPNONE;
var opNum = (VmCmdFlags[curCmd.OpCode] & VMCF_OPMASK);
curCmd.Op1.Addr = null;
curCmd.Op2.Addr = null;
if (opNum > 0) {
this.decodeArg(curCmd.Op1, curCmd.ByteMode, bstream); // reading the first operand
if (opNum === 2) {
this.decodeArg(curCmd.Op2, curCmd.ByteMode, bstream); // reading the second operand
} else {
if (curCmd.Op1.Type === VmOpType.VM_OPINT && (VmCmdFlags[curCmd.OpCode] & (VMCF_JUMP | VMCF_PROC))) {
// Calculating jump distance.
var distance = curCmd.Op1.Data;
if (distance >= 256) {
distance -= 256;
} else {
if (distance >= 136) {
distance -= 264;
} else {
if (distance >= 16) {
distance -= 8;
} else {
if (distance >= 8) {
distance -= 16;
}
}
}
distance += prg.Cmd.length;
}
curCmd.Op1.Data = distance;
}
}
} // if (OpNum>0)
} // while ((uint)InAddr<CodeSize)
} // if (XorSum==Code[0])
curCmd = new VmPreparedCommand();
prg.Cmd.push(curCmd);
curCmd.OpCode = VmCommands.VM_RET;
// TODO: Addr=&CurCmd->Op1.Data
curCmd.Op1.Addr = [curCmd.Op1.Data];
curCmd.Op2.Addr = [curCmd.Op2.Data];
curCmd.Op1.Type = VmOpType.VM_OPNONE;
curCmd.Op2.Type = VmOpType.VM_OPNONE;
// If operand 'Addr' field has not been set by DecodeArg calls above,
// let's set it to point to operand 'Data' field. It is necessary for
// VM_OPINT type operands (usual integers) or maybe if something was
// not set properly for other operands. 'Addr' field is required
// for quicker addressing of operand data.
for (i = 0; i < prg.Cmd.length; ++i) {
var cmd = prg.Cmd[i];
if (cmd.Op1.Addr === null) {
cmd.Op1.Addr = [cmd.Op1.Data];
}
if (cmd.Op2.Addr === null) {
cmd.Op2.Addr = [cmd.Op2.Data];
}
}
/*
#ifdef VM_OPTIMIZE
if (CodeSize!=0)
Optimize(Prg);
#endif
*/
};
/**
* @param {Uint8Array} arr The byte array to set a value in.
* @param {number} value The unsigned 32-bit value to set.
* @param {number} offset Offset into arr to start setting the value, defaults to 0.
*/
RarVM.prototype.setLowEndianValue = function(arr, value, offset) {
var i = offset || 0;
arr[i] = value & 0xff;
arr[i + 1] = (value >>> 8) & 0xff;
arr[i + 2] = (value >>> 16) & 0xff;
arr[i + 3] = (value >>> 24) & 0xff;
};
/**
* Sets a number of bytes of the VM memory at the given position from a
* source buffer of bytes.
* @param {number} pos The position in the VM memory to start writing to.
* @param {Uint8Array} buffer The source buffer of bytes.
* @param {number} dataSize The number of bytes to set.
*/
RarVM.prototype.setMemory = function(pos, buffer, dataSize) {
if (pos < VM_MEMSIZE) {
var numBytes = Math.min(dataSize, VM_MEMSIZE - pos);
for (var i = 0; i < numBytes; ++i) {
this.mem_[pos + i] = buffer[i];
}
}
};
/**
* Static function that reads in the next set of bits for the VM
* (might return 4, 8, 16 or 32 bits).
* @param {bitjs.io.BitStream} bstream A RTL bit stream.
* @return {number} The value of the bits read.
*/
RarVM.readData = function(bstream) {
// Read in the first 2 bits.
var flags = bstream.readBits(2);
switch (flags) { // Data&0xc000
// Return the next 4 bits.
case 0:
return bstream.readBits(4); // (Data>>10)&0xf
case 1: // 0x4000
// 0x3c00 => 0011 1100 0000 0000
if (bstream.peekBits(4) === 0) { // (Data&0x3c00)==0
// Skip the 4 zero bits.
bstream.readBits(4);
// Read in the next 8 and pad with 1s to 32 bits.
return (0xffffff00 | bstream.readBits(8)) >>> 0; // ((Data>>2)&0xff)
}
// Else, read in the next 8.
return bstream.readBits(8);
// Read in the next 16.
case 2: // 0x8000
var val = bstream.getBits();
bstream.readBits(16);
return val; //bstream.readBits(16);
// case 3
default:
return (bstream.readBits(16) << 16) | bstream.readBits(16);
}
};
// ============================================================================================== //

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cps/static/js/archive/untar.js
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/**
* untar.js
*
* Licensed under the MIT License
*
* Copyright(c) 2011 Google Inc.
*
* Reference Documentation:
*
* TAR format: http://www.gnu.org/software/automake/manual/tar/Standard.html
*/
/* global bitjs, importScripts, Uint8Array */
// This file expects to be invoked as a Worker (see onmessage below).
importScripts("../io/bytestream.js");
importScripts("archive.js");
// Progress variables.
var currentFilename = "";
var currentFileNumber = 0;
var currentBytesUnarchivedInFile = 0;
var currentBytesUnarchived = 0;
var totalUncompressedBytesInArchive = 0;
var totalFilesInArchive = 0;
var allLocalFiles = [];
// Helper functions.
var info = function(str) {
postMessage(new bitjs.archive.UnarchiveInfoEvent(str));
};
var err = function(str) {
postMessage(new bitjs.archive.UnarchiveErrorEvent(str));
};
// Removes all characters from the first zero-byte in the string onwards.
var readCleanString = function(bstr, numBytes) {
var str = bstr.readString(numBytes);
var zIndex = str.indexOf(String.fromCharCode(0));
return zIndex != -1 ? str.substr(0, zIndex) : str;
};
var postProgress = function() {
postMessage(new bitjs.archive.UnarchiveProgressEvent(
currentFilename,
currentFileNumber,
currentBytesUnarchivedInFile,
currentBytesUnarchived,
totalUncompressedBytesInArchive,
totalFilesInArchive
));
};
// takes a ByteStream and parses out the local file information
var TarLocalFile = function(bstream) {
this.isValid = false;
var bytesRead = 0;
// Read in the header block
this.name = readCleanString(bstream, 100);
this.mode = readCleanString(bstream, 8);
this.uid = readCleanString(bstream, 8);
this.gid = readCleanString(bstream, 8);
this.size = parseInt(readCleanString(bstream, 12), 8);
this.mtime = readCleanString(bstream, 12);
this.chksum = readCleanString(bstream, 8);
this.typeflag = readCleanString(bstream, 1);
this.linkname = readCleanString(bstream, 100);
this.maybeMagic = readCleanString(bstream, 6);
if (this.maybeMagic === "ustar") {
this.version = readCleanString(bstream, 2);
this.uname = readCleanString(bstream, 32);
this.gname = readCleanString(bstream, 32);
this.devmajor = readCleanString(bstream, 8);
this.devminor = readCleanString(bstream, 8);
this.prefix = readCleanString(bstream, 155);
if (this.prefix.length) {
this.name = this.prefix + this.name;
}
bstream.readBytes(12); // 512 - 500
} else {
bstream.readBytes(255); // 512 - 257
}
bytesRead += 512;
// Done header, now rest of blocks are the file contents.
this.filename = this.name;
this.fileData = null;
info("Untarring file '" + this.filename + "'");
info(" size = " + this.size);
info(" typeflag = " + this.typeflag);
// A regular file.
if (this.typeflag == 0) {
info(" This is a regular file.");
var sizeInBytes = parseInt(this.size);
this.fileData = new Uint8Array(bstream.readBytes(sizeInBytes));
bytesRead += sizeInBytes;
if (this.name.length > 0 && this.size > 0 && this.fileData && this.fileData.buffer) {
this.isValid = true;
}
// Round up to 512-byte blocks.
var remaining = 512 - (bytesRead % 512);
if (remaining > 0 && remaining < 512) {
bstream.readBytes(remaining);
}
} else if (this.typeflag == 5) {
info(" This is a directory.");
}
};
var untar = function(arrayBuffer) {
postMessage(new bitjs.archive.UnarchiveStartEvent());
currentFilename = "";
currentFileNumber = 0;
currentBytesUnarchivedInFile = 0;
currentBytesUnarchived = 0;
totalUncompressedBytesInArchive = 0;
totalFilesInArchive = 0;
allLocalFiles = [];
var bstream = new bitjs.io.ByteStream(arrayBuffer);
postProgress();
/*
// go through whole file, read header of each block and memorize, filepointer
*/
while (bstream.peekNumber(4) !== 0) {
var localFile = new TarLocalFile(bstream);
allLocalFiles.push(localFile);
postProgress();
}
// got all local files, now sort them
allLocalFiles.sort(alphanumCase);
allLocalFiles.forEach(function(oneLocalFile) {
// While we don't encounter an empty block, keep making TarLocalFiles.
if (oneLocalFile && oneLocalFile.isValid) {
// If we make it to this point and haven't thrown an error, we have successfully
// read in the data for a local file, so we can update the actual bytestream.
totalUncompressedBytesInArchive += oneLocalFile.size;
// update progress
currentFilename = oneLocalFile.filename;
currentFileNumber = totalFilesInArchive++;
currentBytesUnarchivedInFile = oneLocalFile.size;
currentBytesUnarchived += oneLocalFile.size;
postMessage(new bitjs.archive.UnarchiveExtractEvent(oneLocalFile));
postProgress();
}
});
totalFilesInArchive = allLocalFiles.length;
postProgress();
postMessage(new bitjs.archive.UnarchiveFinishEvent());
};
// event.data.file has the first ArrayBuffer.
// event.data.bytes has all subsequent ArrayBuffers.
onmessage = function(event) {
try {
untar(event.data.file, true);
} catch (e) {
if (typeof e === "string" && e.startsWith("Error! Overflowed")) {
// Overrun the buffer.
// unarchiveState = UnarchiveState.WAITING;
} else {
err("Found an error while untarring");
err(e);
throw e;
}
}
};

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cps/static/js/archive/unzip.js
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/**
* unzip.js
*
* Licensed under the MIT License
*
* Copyright(c) 2011 Google Inc.
* Copyright(c) 2011 antimatter15
*
* Reference Documentation:
*
* ZIP format: http://www.pkware.com/documents/casestudies/APPNOTE.TXT
* DEFLATE format: http://tools.ietf.org/html/rfc1951
*/
/* global bitjs, importScripts, Uint8Array*/
// This file expects to be invoked as a Worker (see onmessage below).
importScripts("../io/bitstream.js");
importScripts("../io/bytebuffer.js");
importScripts("../io/bytestream.js");
importScripts("archive.js");
// Progress variables.
var currentFilename = "";
var currentFileNumber = 0;
var currentBytesUnarchivedInFile = 0;
var currentBytesUnarchived = 0;
var totalUncompressedBytesInArchive = 0;
var totalFilesInArchive = 0;
// Helper functions.
var info = function(str) {
postMessage(new bitjs.archive.UnarchiveInfoEvent(str));
};
var err = function(str) {
postMessage(new bitjs.archive.UnarchiveErrorEvent(str));
};
var postProgress = function() {
postMessage(new bitjs.archive.UnarchiveProgressEvent(
currentFilename,
currentFileNumber,
currentBytesUnarchivedInFile,
currentBytesUnarchived,
totalUncompressedBytesInArchive,
totalFilesInArchive));
};
var zLocalFileHeaderSignature = 0x04034b50;
var zArchiveExtraDataSignature = 0x08064b50;
var zCentralFileHeaderSignature = 0x02014b50;
var zDigitalSignatureSignature = 0x05054b50;
// takes a ByteStream and parses out the local file information
var ZipLocalFile = function(bstream) {
if (typeof bstream !== typeof {} || !bstream.readNumber || typeof bstream.readNumber !== typeof function() {}) {
return null;
}
bstream.readNumber(4); // swallow signature
this.version = bstream.readNumber(2);
this.generalPurpose = bstream.readNumber(2);
this.compressionMethod = bstream.readNumber(2);
this.lastModFileTime = bstream.readNumber(2);
this.lastModFileDate = bstream.readNumber(2);
this.crc32 = bstream.readNumber(4);
this.compressedSize = bstream.readNumber(4);
this.uncompressedSize = bstream.readNumber(4);
this.fileNameLength = bstream.readNumber(2);
this.extraFieldLength = bstream.readNumber(2);
this.filename = null;
if (this.fileNameLength > 0) {
this.filename = bstream.readString(this.fileNameLength);
}
this.extraField = null;
if (this.extraFieldLength > 0) {
this.extraField = bstream.readString(this.extraFieldLength);
info(" extra field=" + this.extraField);
}
// read in the compressed data
this.fileData = null;
if (this.compressedSize > 0) {
this.fileData = new Uint8Array(bstream.bytes.buffer, bstream.ptr, this.compressedSize);
bstream.ptr += this.compressedSize;
}
// TODO: deal with data descriptor if present (we currently assume no data descriptor!)
// "This descriptor exists only if bit 3 of the general purpose bit flag is set"
// But how do you figure out how big the file data is if you don't know the compressedSize
// from the header?!?
if ((this.generalPurpose & bitjs.BIT[3]) !== 0) {
this.crc32 = bstream.readNumber(4);
this.compressedSize = bstream.readNumber(4);
this.uncompressedSize = bstream.readNumber(4);
}
// Now that we have all the bytes for this file, we can print out some information.
info("Zip Local File Header:");
info(" version=" + this.version);
info(" general purpose=" + this.generalPurpose);
info(" compression method=" + this.compressionMethod);
info(" last mod file time=" + this.lastModFileTime);
info(" last mod file date=" + this.lastModFileDate);
info(" crc32=" + this.crc32);
info(" compressed size=" + this.compressedSize);
info(" uncompressed size=" + this.uncompressedSize);
info(" file name length=" + this.fileNameLength);
info(" extra field length=" + this.extraFieldLength);
info(" filename = '" + this.filename + "'");
};
// determine what kind of compressed data we have and decompress
ZipLocalFile.prototype.unzip = function() {
// Zip Version 1.0, no compression (store only)
if (this.compressionMethod === 0 ) {
info("ZIP v" + this.version + ", store only: " + this.filename + " (" + this.compressedSize + " bytes)");
currentBytesUnarchivedInFile = this.compressedSize;
currentBytesUnarchived += this.compressedSize;
this.fileData = zeroCompression(this.fileData, this.uncompressedSize);
} else if (this.compressionMethod === 8) {
// version == 20, compression method == 8 (DEFLATE)
info("ZIP v2.0, DEFLATE: " + this.filename + " (" + this.compressedSize + " bytes)");
this.fileData = inflate(this.fileData, this.uncompressedSize);
} else {
err("UNSUPPORTED VERSION/FORMAT: ZIP v" + this.version + ", compression method=" + this.compressionMethod + ": " + this.filename + " (" + this.compressedSize + " bytes)");
this.fileData = null;
}
};
// Takes an ArrayBuffer of a zip file in
// returns null on error
// returns an array of DecompressedFile objects on success
// ToDo This function differs
var unzip = function(arrayBuffer) {
postMessage(new bitjs.archive.UnarchiveStartEvent());
currentFilename = "";
currentFileNumber = 0;
currentBytesUnarchivedInFile = 0;
currentBytesUnarchived = 0;
totalUncompressedBytesInArchive = 0;
totalFilesInArchive = 0;
currentBytesUnarchived = 0;
var bstream = new bitjs.io.ByteStream(arrayBuffer);
// detect local file header signature or return null
if (bstream.peekNumber(4) === zLocalFileHeaderSignature) {
var localFiles = [];
// loop until we don't see any more local files
while (bstream.peekNumber(4) === zLocalFileHeaderSignature) {
var oneLocalFile = new ZipLocalFile(bstream);
// this should strip out directories/folders
if (oneLocalFile && oneLocalFile.uncompressedSize > 0 && oneLocalFile.fileData) {
localFiles.push(oneLocalFile);
totalUncompressedBytesInArchive += oneLocalFile.uncompressedSize;
}
}
totalFilesInArchive = localFiles.length;
// got all local files, now sort them
localFiles.sort(alphanumCase);
// archive extra data record
if (bstream.peekNumber(4) === zArchiveExtraDataSignature) {
info(" Found an Archive Extra Data Signature");
// skipping this record for now
bstream.readNumber(4);
var archiveExtraFieldLength = bstream.readNumber(4);
bstream.readString(archiveExtraFieldLength);
}
// central directory structure
// TODO: handle the rest of the structures (Zip64 stuff)
if (bstream.peekNumber(4) === zCentralFileHeaderSignature) {
info(" Found a Central File Header");
// read all file headers
while (bstream.peekNumber(4) === zCentralFileHeaderSignature) {
bstream.readNumber(4); // signature
bstream.readNumber(2); // version made by
bstream.readNumber(2); // version needed to extract
bstream.readNumber(2); // general purpose bit flag
bstream.readNumber(2); // compression method
bstream.readNumber(2); // last mod file time
bstream.readNumber(2); // last mod file date
bstream.readNumber(4); // crc32
bstream.readNumber(4); // compressed size
bstream.readNumber(4); // uncompressed size
var fileNameLength = bstream.readNumber(2); // file name length
var extraFieldLength = bstream.readNumber(2); // extra field length
var fileCommentLength = bstream.readNumber(2); // file comment length
bstream.readNumber(2); // disk number start
bstream.readNumber(2); // internal file attributes
bstream.readNumber(4); // external file attributes
bstream.readNumber(4); // relative offset of local header
bstream.readString(fileNameLength); // file name
bstream.readString(extraFieldLength); // extra field
bstream.readString(fileCommentLength); // file comment
}
}
// digital signature
if (bstream.peekNumber(4) === zDigitalSignatureSignature) {
info(" Found a Digital Signature");
bstream.readNumber(4);
var sizeOfSignature = bstream.readNumber(2);
bstream.readString(sizeOfSignature); // digital signature data
}
// report # files and total length
if (localFiles.length > 0) {
postProgress();
}
// now do the unzipping of each file
for (var i = 0; i < localFiles.length; ++i) {
var localfile = localFiles[i];
// update progress
currentFilename = localfile.filename;
currentFileNumber = i;
currentBytesUnarchivedInFile = 0;
// actually do the unzipping
localfile.unzip();
if (localfile.fileData !== null) {
postMessage(new bitjs.archive.UnarchiveExtractEvent(localfile));
postProgress();
}
}
postProgress();
postMessage(new bitjs.archive.UnarchiveFinishEvent());
}
};
// returns a table of Huffman codes
// each entry's index is its code and its value is a JavaScript object
// containing {length: 6, symbol: X}
function getHuffmanCodes(bitLengths) {
// ensure bitLengths is an array containing at least one element
if (typeof bitLengths !== typeof [] || bitLengths.length < 1) {
err("Error! getHuffmanCodes() called with an invalid array");
return null;
}
// Reference: http://tools.ietf.org/html/rfc1951#page-8
var numLengths = bitLengths.length;
var blCount = [];
var MAX_BITS = 1;
// Step 1: count up how many codes of each length we have
for (var i = 0; i < numLengths; ++i) {
var length = bitLengths[i];
// test to ensure each bit length is a positive, non-zero number
if (typeof length !== typeof 1 || length < 0) {
err("bitLengths contained an invalid number in getHuffmanCodes(): " + length + " of type " + (typeof length));
return null;
}
// increment the appropriate bitlength count
if (typeof blCount[length] === "undefined") blCount[length] = 0;
// a length of zero means this symbol is not participating in the huffman coding
if (length > 0) blCount[length]++;
if (length > MAX_BITS) MAX_BITS = length;
}
// Step 2: Find the numerical value of the smallest code for each code length
var nextCode = [];
var code = 0;
for (var bits = 1; bits <= MAX_BITS; ++bits) {
var length2 = bits - 1;
// ensure undefined lengths are zero
if (typeof blCount[length2] === "undefined") blCount[length2] = 0;
code = (code + blCount[bits - 1]) << 1;
nextCode [bits] = code;
}
// Step 3: Assign numerical values to all codes
var table = {};
var tableLength = 0;
for (var n = 0; n < numLengths; ++n) {
var len = bitLengths[n];
if (len !== 0) {
table[nextCode [len]] = { length: len, symbol: n }; //, bitstring: binaryValueToString(nextCode [len],len) };
tableLength++;
nextCode [len]++;
}
}
table.maxLength = tableLength;
return table;
}
/*
The Huffman codes for the two alphabets are fixed, and are not
represented explicitly in the data. The Huffman code lengths
for the literal/length alphabet are:
Lit Value Bits Codes
--------- ---- -----
0 - 143 8 00110000 through
10111111
144 - 255 9 110010000 through
111111111
256 - 279 7 0000000 through
0010111
280 - 287 8 11000000 through
11000111
*/
// fixed Huffman codes go from 7-9 bits, so we need an array whose index can hold up to 9 bits
var fixedHCtoLiteral = null;
var fixedHCtoDistance = null;
function getFixedLiteralTable() {
// create once
if (!fixedHCtoLiteral) {
var bitlengths = new Array(288);
var i;
for (i = 0; i <= 143; ++i) bitlengths[i] = 8;
for (i = 144; i <= 255; ++i) bitlengths[i] = 9;
for (i = 256; i <= 279; ++i) bitlengths[i] = 7;
for (i = 280; i <= 287; ++i) bitlengths[i] = 8;
// get huffman code table
fixedHCtoLiteral = getHuffmanCodes(bitlengths);
}
return fixedHCtoLiteral;
}
function getFixedDistanceTable() {
// create once
if (!fixedHCtoDistance) {
var bitlengths = new Array(32);
for (var i = 0; i < 32; ++i) {
bitlengths[i] = 5;
}
// get huffman code table
fixedHCtoDistance = getHuffmanCodes(bitlengths);
}
return fixedHCtoDistance;
}
// extract one bit at a time until we find a matching Huffman Code
// then return that symbol
function decodeSymbol(bstream, hcTable) {
var code = 0;
var len = 0;
// loop until we match
for (;;) {
// read in next bit
var bit = bstream.readBits(1);
code = (code << 1) | bit;
++len;
// check against Huffman Code table and break if found
if (hcTable.hasOwnProperty(code) && hcTable[code].length === len) {
break;
}
if (len > hcTable.maxLength) {
err("Bit stream out of sync, didn't find a Huffman Code, length was " + len +
" and table only max code length of " + hcTable.maxLength);
break;
}
}
return hcTable[code].symbol;
}
var CodeLengthCodeOrder = [16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15];
/*
Extra Extra Extra
Code Bits Length(s) Code Bits Lengths Code Bits Length(s)
---- ---- ------ ---- ---- ------- ---- ---- -------
257 0 3 267 1 15,16 277 4 67-82
258 0 4 268 1 17,18 278 4 83-98
259 0 5 269 2 19-22 279 4 99-114
260 0 6 270 2 23-26 280 4 115-130
261 0 7 271 2 27-30 281 5 131-162
262 0 8 272 2 31-34 282 5 163-194
263 0 9 273 3 35-42 283 5 195-226
264 0 10 274 3 43-50 284 5 227-257
265 1 11,12 275 3 51-58 285 0 258
266 1 13,14 276 3 59-66
*/
var LengthLookupTable = [
[0, 3],
[0, 4],
[0, 5],
[0, 6],
[0, 7],
[0, 8],
[0, 9],
[0, 10],
[1, 11],
[1, 13],
[1, 15],
[1, 17],
[2, 19],
[2, 23],
[2, 27],
[2, 31],
[3, 35],
[3, 43],
[3, 51],
[3, 59],
[4, 67],
[4, 83],
[4, 99],
[4, 115],
[5, 131],
[5, 163],
[5, 195],
[5, 227],
[0, 258]
];
/*
Extra Extra Extra
Code Bits Dist Code Bits Dist Code Bits Distance
---- ---- ---- ---- ---- ------ ---- ---- --------
0 0 1 10 4 33-48 20 9 1025-1536
1 0 2 11 4 49-64 21 9 1537-2048
2 0 3 12 5 65-96 22 10 2049-3072
3 0 4 13 5 97-128 23 10 3073-4096
4 1 5,6 14 6 129-192 24 11 4097-6144
5 1 7,8 15 6 193-256 25 11 6145-8192
6 2 9-12 16 7 257-384 26 12 8193-12288
7 2 13-16 17 7 385-512 27 12 12289-16384
8 3 17-24 18 8 513-768 28 13 16385-24576
9 3 25-32 19 8 769-1024 29 13 24577-32768
*/
var DistLookupTable = [
[0, 1],
[0, 2],
[0, 3],
[0, 4],
[1, 5],
[1, 7],
[2, 9],
[2, 13],
[3, 17],
[3, 25],
[4, 33],
[4, 49],
[5, 65],
[5, 97],
[6, 129],
[6, 193],
[7, 257],
[7, 385],
[8, 513],
[8, 769],
[9, 1025],
[9, 1537],
[10, 2049],
[10, 3073],
[11, 4097],
[11, 6145],
[12, 8193],
[12, 12289],
[13, 16385],
[13, 24577]
];
function inflateBlockData(bstream, hcLiteralTable, hcDistanceTable, buffer) {
/*
loop (until end of block code recognized)
decode literal/length value from input stream
if value < 256
copy value (literal byte) to output stream
otherwise
if value = end of block (256)
break from loop
otherwise (value = 257..285)
decode distance from input stream
move backwards distance bytes in the output
stream, and copy length bytes from this
position to the output stream.
*/
var blockSize = 0;
for (;;) {
var symbol = decodeSymbol(bstream, hcLiteralTable);
if (symbol < 256) {
// copy literal byte to output
buffer.insertByte(symbol);
blockSize++;
} else {
// end of block reached
if (symbol === 256) {
break;
} else {
var lengthLookup = LengthLookupTable[symbol - 257];
var length = lengthLookup[1] + bstream.readBits(lengthLookup[0]);
var distLookup = DistLookupTable[decodeSymbol(bstream, hcDistanceTable)];
var distance = distLookup[1] + bstream.readBits(distLookup[0]);
// now apply length and distance appropriately and copy to output
// TODO: check that backward distance < data.length?
// http://tools.ietf.org/html/rfc1951#page-11
// "Note also that the referenced string may overlap the current
// position; for example, if the last 2 bytes decoded have values
// X and Y, a string reference with <length = 5, distance = 2>
// adds X,Y,X,Y,X to the output stream."
//
// loop for each character
var ch = buffer.ptr - distance;
blockSize += length;
if (length > distance) {
var data = buffer.data;
while (length--) {
buffer.insertByte(data[ch++]);
}
} else {
buffer.insertBytes(buffer.data.subarray(ch, ch + length));
}
} // length-distance pair
} // length-distance pair or end-of-block
} // loop until we reach end of block
return blockSize;
}
function zeroCompression(compressedData, numDecompressedBytes) {
var bstream = new bitjs.io.BitStream(compressedData.buffer,
false /* rtl */,
compressedData.byteOffset,
compressedData.byteLength);
var buffer = new bitjs.io.ByteBuffer(numDecompressedBytes);
buffer.insertBytes(bstream.readBytes(numDecompressedBytes));
return buffer.data;
}
// {Uint8Array} compressedData A Uint8Array of the compressed file data.
// compression method 8
// deflate: http://tools.ietf.org/html/rfc1951
function inflate(compressedData, numDecompressedBytes) {
// Bit stream representing the compressed data.
var bstream = new bitjs.io.BitStream(compressedData.buffer,
false /* rtl */,
compressedData.byteOffset,
compressedData.byteLength);
var buffer = new bitjs.io.ByteBuffer(numDecompressedBytes);
var blockSize = 0;
// block format: http://tools.ietf.org/html/rfc1951#page-9
var bFinal = 0;
do {
bFinal = bstream.readBits(1);
var bType = bstream.readBits(2);
blockSize = 0;
// ++numBlocks;
// no compression
if (bType === 0) {
// skip remaining bits in this byte
while (bstream.bitPtr !== 0) bstream.readBits(1);
var len = bstream.readBits(16);
bstream.readBits(16);
// TODO: check if nlen is the ones-complement of len?
if (len > 0) buffer.insertBytes(bstream.readBytes(len));
blockSize = len;
} else if (bType === 1) {
// fixed Huffman codes
blockSize = inflateBlockData(bstream, getFixedLiteralTable(), getFixedDistanceTable(), buffer);
} else if (bType === 2) {
// dynamic Huffman codes
var numLiteralLengthCodes = bstream.readBits(5) + 257;
var numDistanceCodes = bstream.readBits(5) + 1,
numCodeLengthCodes = bstream.readBits(4) + 4;
// populate the array of code length codes (first de-compaction)
var codeLengthsCodeLengths = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
for (var i = 0; i < numCodeLengthCodes; ++i) {
codeLengthsCodeLengths[ CodeLengthCodeOrder[i] ] = bstream.readBits(3);
}
// get the Huffman Codes for the code lengths
var codeLengthsCodes = getHuffmanCodes(codeLengthsCodeLengths);
// now follow this mapping
/*
0 - 15: Represent code lengths of 0 - 15
16: Copy the previous code length 3 - 6 times.
The next 2 bits indicate repeat length
(0 = 3, ... , 3 = 6)
Example: Codes 8, 16 (+2 bits 11),
16 (+2 bits 10) will expand to
12 code lengths of 8 (1 + 6 + 5)
17: Repeat a code length of 0 for 3 - 10 times.
(3 bits of length)
18: Repeat a code length of 0 for 11 - 138 times
(7 bits of length)
*/
// to generate the true code lengths of the Huffman Codes for the literal
// and distance tables together
var literalCodeLengths = [];
var prevCodeLength = 0;
while (literalCodeLengths.length < numLiteralLengthCodes + numDistanceCodes) {
var symbol = decodeSymbol(bstream, codeLengthsCodes);
if (symbol <= 15) {
literalCodeLengths.push(symbol);
prevCodeLength = symbol;
} else if (symbol === 16) {
var repeat = bstream.readBits(2) + 3;
while (repeat--) {
literalCodeLengths.push(prevCodeLength);
}
} else if (symbol === 17) {
var repeat1 = bstream.readBits(3) + 3;
while (repeat1--) {
literalCodeLengths.push(0);
}
} else if (symbol === 18) {
var repeat2 = bstream.readBits(7) + 11;
while (repeat2--) {
literalCodeLengths.push(0);
}
}
}
// now split the distance code lengths out of the literal code array
var distanceCodeLengths = literalCodeLengths.splice(numLiteralLengthCodes, numDistanceCodes);
// now generate the true Huffman Code tables using these code lengths
var hcLiteralTable = getHuffmanCodes(literalCodeLengths);
var hcDistanceTable = getHuffmanCodes(distanceCodeLengths);
blockSize = inflateBlockData(bstream, hcLiteralTable, hcDistanceTable, buffer);
} else {
// error
err("Error! Encountered deflate block of type 3");
return null;
}
// update progress
currentBytesUnarchivedInFile += blockSize;
currentBytesUnarchived += blockSize;
postProgress();
} while (bFinal !== 1);
// we are done reading blocks if the bFinal bit was set for this block
// return the buffer data bytes
return buffer.data;
}
// event.data.file has the ArrayBuffer.
onmessage = function(event) {
unzip(event.data.file, true);
};

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// Copyright (c) 2017 Matthew Brennan Jones <matthew.brennan.jones@gmail.com>
// This software is licensed under a MIT License
// https://github.com/workhorsy/uncompress.js
"use strict";
// Based on the information from:
// https://en.wikipedia.org/wiki/Tar_(computing)
(function() {
const TAR_TYPE_FILE = 0;
const TAR_TYPE_DIR = 5;
const TAR_HEADER_SIZE = 512;
const TAR_TYPE_OFFSET = 156;
const TAR_TYPE_SIZE = 1;
const TAR_SIZE_OFFSET = 124;
const TAR_SIZE_SIZE = 12;
const TAR_NAME_OFFSET = 0;
const TAR_NAME_SIZE = 100;
function _tarRead(view, offset, size) {
return view.slice(offset, offset + size);
}
function tarGetEntries(filename, array_buffer) {
let view = new Uint8Array(array_buffer);
let offset = 0;
let entries = [];
while (offset + TAR_HEADER_SIZE < view.byteLength) {
// Get entry name
let entry_name = saneMap(_tarRead(view, offset + TAR_NAME_OFFSET, TAR_NAME_SIZE), String.fromCharCode);
entry_name = entry_name.join('').replace(/\0/g, '');
// No entry name, so probably the last block
if (entry_name.length === 0) {
break;
}
// Get entry size
let entry_size = parseInt(saneJoin(saneMap(_tarRead(view, offset + TAR_SIZE_OFFSET, TAR_SIZE_SIZE), String.fromCharCode), ''), 8);
let entry_type = saneMap(_tarRead(view, offset + TAR_TYPE_OFFSET, TAR_TYPE_SIZE), String.fromCharCode) | 0;
// Save this as en entry if it is a file or directory
if (entry_type === TAR_TYPE_FILE || entry_type === TAR_TYPE_DIR) {
let entry = {
name: entry_name,
size: entry_size,
is_file: entry_type == TAR_TYPE_FILE,
offset: offset
};
entries.push(entry);
}
// Round the offset up to be divisible by TAR_HEADER_SIZE
offset += (entry_size + TAR_HEADER_SIZE);
if (offset % TAR_HEADER_SIZE > 0) {
let even = (offset / TAR_HEADER_SIZE) | 0; // number of times it goes evenly into TAR_HEADER_SIZE
offset = (even + 1) * TAR_HEADER_SIZE;
}
}
return entries;
}
function tarGetEntryData(entry, array_buffer) {
let view = new Uint8Array(array_buffer);
let offset = entry.offset;
let size = entry.size;
// Get entry data
let entry_data = _tarRead(view, offset + TAR_HEADER_SIZE, size);
return entry_data;
}
// Figure out if we are running in a Window or Web Worker
let scope = null;
if (typeof window === 'object') {
scope = window;
} else if (typeof importScripts === 'function') {
scope = self;
}
// Set exports
scope.tarGetEntries = tarGetEntries;
scope.tarGetEntryData = tarGetEntryData;
})();

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// Copyright (c) 2017 Matthew Brennan Jones <matthew.brennan.jones@gmail.com>
// This software is licensed under a MIT License
// https://github.com/workhorsy/uncompress.js
"use strict";
function loadScript(url, cb) {
// Window
if (typeof window === 'object') {
let script = document.createElement('script');
script.type = "text/javascript";
script.src = url;
script.onload = function() {
if (cb) cb();
};
document.head.appendChild(script);
// Web Worker
} else if (typeof importScripts === 'function') {
importScripts(url);
if (cb) cb();
}
}
function currentScriptPath() {
// NOTE: document.currentScript does not work in a Web Worker
// So we have to parse a stack trace maually
try {
throw new Error('');
} catch(e) {
let stack = e.stack;
let line = null;
// Chrome and IE
if (stack.indexOf('@') !== -1) {
line = stack.split('@')[1].split('\n')[0];
// Firefox
} else {
line = stack.split('(')[1].split(')')[0];
}
line = line.substring(0, line.lastIndexOf('/')) + '/';
return line;
}
}
// This is used by libunrar.js to load libunrar.js.mem
let unrarMemoryFileLocation = null;
let g_on_loaded_cb = null;
(function() {
let _loaded_archive_formats = [];
// Polyfill for missing array slice method (IE 11)
if (typeof Uint8Array !== 'undefined') {
if (! Uint8Array.prototype.slice) {
Uint8Array.prototype.slice = function(start, end) {
let retval = new Uint8Array(end - start);
let j = 0;
for (let i=start; i<end; ++i) {
retval[j] = this[i];
j++;
}
return retval;
};
}
}
// FIXME: This function is super inefficient
function saneJoin(array, separator) {
let retval = '';
for (let i=0; i<array.length; ++i) {
if (i === 0) {
retval += array[i];
} else {
retval += separator + array[i];
}
}
return retval;
}
function saneMap(array, cb) {
let retval = new Array(array.length);
for (let i=0; i<retval.length; ++i) {
retval[i] = cb(array[i]);
}
return retval;
}
function loadArchiveFormats(formats, cb) {
// Get the path of the current script
let path = currentScriptPath();
let load_counter = 0;
let checkForLoadDone = function() {
load_counter++;
// Get the total number of loads before we are done loading
// If loading RAR in a Window, have 1 extra load.
let load_total = formats.length;
if (formats.indexOf('rar') !== -1 && typeof window === 'object') {
load_total++;
}
// run the callback if the last script has loaded
if (load_counter === load_total) {
cb();
}
};
g_on_loaded_cb = checkForLoadDone;
// Load the formats
formats.forEach(function(archive_format) {
// Skip this format if it is already loaded
if (_loaded_archive_formats.indexOf(archive_format) !== -1) {
return;
}
// Load the archive format
switch (archive_format) {
case 'rar':
unrarMemoryFileLocation = path + 'libunrar.js.mem';
loadScript(path + 'libunrar.js', checkForLoadDone);
_loaded_archive_formats.push(archive_format);
break;
case 'zip':
loadScript(path + 'jszip.js', checkForLoadDone);
_loaded_archive_formats.push(archive_format);
break;
case 'tar':
loadScript(path + 'libuntar.js', checkForLoadDone);
_loaded_archive_formats.push(archive_format);
break;
default:
throw new Error("Unknown archive format '" + archive_format + "'.");
}
});
}
function archiveOpenFile(array_buffer, cb) {
let file_name = "Hugo"; //file.name;
let password = null;
try {
let archive = archiveOpenArrayBuffer(file_name, password, array_buffer);
cb(archive, null);
} catch(e) {
cb(null, e);
}
}
function archiveOpenArrayBuffer(file_name, password, array_buffer) {
// Get the archive type
let archive_type = null;
if (isRarFile(array_buffer)) {
archive_type = 'rar';
} else if(isZipFile(array_buffer)) {
archive_type = 'zip';
} else if(isTarFile(array_buffer)) {
archive_type = 'tar';
} else {
throw new Error("The archive type is unknown");
}
// Make sure the archive format is loaded
if (_loaded_archive_formats.indexOf(archive_type) === -1) {
throw new Error("The archive format '" + archive_type + "' is not loaded.");
}
// Get the entries
let handle = null;
let entries = [];
try {
switch (archive_type) {
case 'rar':
handle = _rarOpen(file_name, password, array_buffer);
entries = _rarGetEntries(handle);
break;
case 'zip':
handle = _zipOpen(file_name, password, array_buffer);
entries = _zipGetEntries(handle);
break;
case 'tar':
handle = _tarOpen(file_name, password, array_buffer);
entries = _tarGetEntries(handle);
break;
}
} catch(e) {
throw new Error("Failed to open '" + archive_type + "' archive.");
}
// Sort the entries by name
entries.sort(function(a, b) {
if(a.name < b.name) return -1;
if(a.name > b.name) return 1;
return 0;
});
// Return the archive object
return {
file_name: file_name,
archive_type: archive_type,
array_buffer: array_buffer,
entries: entries,
handle: handle
};
}
function archiveClose(archive) {
archive.file_name = null;
archive.archive_type = null;
archive.array_buffer = null;
archive.entries = null;
archive.handle = null;
}
function _rarOpen(file_name, password, array_buffer) {
// Create an array of rar files
let rar_files = [{
name: file_name,
size: array_buffer.byteLength,
type: '',
content: new Uint8Array(array_buffer)
}];
// Return rar handle
return {
file_name: file_name,
array_buffer: array_buffer,
password: password,
rar_files: rar_files
};
}
function _zipOpen(file_name, password, array_buffer) {
let zip = new JSZip(array_buffer);
// Return zip handle
return {
file_name: file_name,
array_buffer: array_buffer,
password: password,
zip: zip
};
}
function _tarOpen(file_name, password, array_buffer) {
// Return tar handle
return {
file_name: file_name,
array_buffer: array_buffer,
password: password
};
}
function _rarGetEntries(rar_handle) {
// Get the entries
let info = readRARFileNames(rar_handle.rar_files, rar_handle.password);
let entries = [];
Object.keys(info).forEach(function(i) {
let name = info[i].name;
let is_file = info[i].is_file;
if (is_file) {
entries.push({
name: name,
is_file: is_file, // info[i].is_file,
size_compressed: info[i].size_compressed,
size_uncompressed: info[i].size_uncompressed,
readData: function (cb) {
setTimeout(function () {
if (is_file) {
try {
readRARContent(rar_handle.rar_files, rar_handle.password, name, cb);
} catch (e) {
cb(null, e);
}
} else {
cb(null, null);
}
}, 0);
}
});
}
});
return entries;
}
function _zipGetEntries(zip_handle) {
let zip = zip_handle.zip;
// Get all the entries
let entries = [];
Object.keys(zip.files).forEach(function(i) {
let zip_entry = zip.files[i];
let name = zip_entry.name;
let is_file = ! zip_entry.dir;
let size_compressed = zip_entry._data ? zip_entry._data.compressedSize : 0;
let size_uncompressed = zip_entry._data ? zip_entry._data.uncompressedSize : 0;
if (is_file) {
entries.push({
name: name,
is_file: is_file,
size_compressed: size_compressed,
size_uncompressed: size_uncompressed,
readData: function (cb) {
setTimeout(function () {
if (is_file) {
let data = zip_entry.asArrayBuffer();
cb(data, null);
} else {
cb(null, null);
}
}, 0);
}
});
}
});
return entries;
}
function _tarGetEntries(tar_handle) {
let tar_entries = tarGetEntries(tar_handle.file_name, tar_handle.array_buffer);
// Get all the entries
let entries = [];
tar_entries.forEach(function(entry) {
let name = entry.name;
let is_file = entry.is_file;
let size = entry.size;
if (is_file) {
entries.push({
name: name,
is_file: is_file,
size_compressed: size,
size_uncompressed: size,
readData: function (cb) {
setTimeout(function () {
if (is_file) {
let data = tarGetEntryData(entry, tar_handle.array_buffer);
cb(data.buffer, null);
} else {
cb(null, null);
}
}, 0);
}
});
}
});
return entries;
}
function isRarFile(array_buffer) {
// The three styles of RAR headers
let rar_header1 = saneJoin([0x52, 0x45, 0x7E, 0x5E], ', '); // old
let rar_header2 = saneJoin([0x52, 0x61, 0x72, 0x21, 0x1A, 0x07, 0x00], ', '); // 1.5 to 4.0
let rar_header3 = saneJoin([0x52, 0x61, 0x72, 0x21, 0x1A, 0x07, 0x01, 0x00], ', '); // 5.0
// Just return false if the file is smaller than the header
if (array_buffer.byteLength < 8) {
return false;
}
// Return true if the header matches one of the RAR headers
let header1 = saneJoin(new Uint8Array(array_buffer).slice(0, 4), ', ');
let header2 = saneJoin(new Uint8Array(array_buffer).slice(0, 7), ', ');
let header3 = saneJoin(new Uint8Array(array_buffer).slice(0, 8), ', ');
return (header1 === rar_header1 || header2 === rar_header2 || header3 === rar_header3);
}
function isZipFile(array_buffer) {
// The ZIP header
let zip_header = saneJoin([0x50, 0x4b, 0x03, 0x04], ', ');
// Just return false if the file is smaller than the header
if (array_buffer.byteLength < 4) {
return false;
}
// Return true if the header matches the ZIP header
let header = saneJoin(new Uint8Array(array_buffer).slice(0, 4), ', ');
return (header === zip_header);
}
function isTarFile(array_buffer) {
// The TAR header
let tar_header = saneJoin(['u', 's', 't', 'a', 'r'], ', ');
// Just return false if the file is smaller than the header size
if (array_buffer.byteLength < 512) {
return false;
}
// Return true if the header matches the TAR header
let header = saneJoin(saneMap(new Uint8Array(array_buffer).slice(257, 257 + 5), String.fromCharCode), ', ');
return (header === tar_header);
}
// Figure out if we are running in a Window or Web Worker
let scope = null;
if (typeof window === 'object') {
scope = window;
} else if (typeof importScripts === 'function') {
scope = self;
}
// Set exports
scope.loadArchiveFormats = loadArchiveFormats;
scope.archiveOpenFile = archiveOpenFile;
scope.archiveOpenArrayBuffer = archiveOpenArrayBuffer;
scope.archiveClose = archiveClose;
scope.isRarFile = isRarFile;
scope.isZipFile = isZipFile;
scope.isTarFile = isTarFile;
scope.saneJoin = saneJoin;
scope.saneMap = saneMap;
})();

237
cps/static/js/io/bitstream.js
View File

@@ -1,237 +0,0 @@
/*
* bitstream.js
*
* Provides readers for bitstreams.
*
* Licensed under the MIT License
*
* Copyright(c) 2011 Google Inc.
* Copyright(c) 2011 antimatter15
*/
/* global bitjs, Uint8Array */
var bitjs = bitjs || {};
bitjs.io = bitjs.io || {};
(function() {
// mask for getting the Nth bit (zero-based)
bitjs.BIT = [0x01, 0x02, 0x04, 0x08,
0x10, 0x20, 0x40, 0x80,
0x100, 0x200, 0x400, 0x800,
0x1000, 0x2000, 0x4000, 0x8000
];
// mask for getting N number of bits (0-8)
var BITMASK = [0, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF];
/**
* This bit stream peeks and consumes bits out of a binary stream.
*
* @param {ArrayBuffer} ab An ArrayBuffer object or a Uint8Array.
* @param {boolean} rtl Whether the stream reads bits from the byte starting
* from bit 7 to 0 (true) or bit 0 to 7 (false).
* @param {Number} optOffset The offset into the ArrayBuffer
* @param {Number} optLength The length of this BitStream
*/
bitjs.io.BitStream = function(ab, rtl, optOffset, optLength) {
if (!ab || !ab.toString || ab.toString() !== "[object ArrayBuffer]") {
throw "Error! BitArray constructed with an invalid ArrayBuffer object";
}
var offset = optOffset || 0;
var length = optLength || ab.byteLength;
this.bytes = new Uint8Array(ab, offset, length);
this.bytePtr = 0; // tracks which byte we are on
this.bitPtr = 0; // tracks which bit we are on (can have values 0 through 7)
this.peekBits = rtl ? this.peekBitsRtl : this.peekBitsLtr;
};
/**
* byte0 byte1 byte2 byte3
* 7......0 | 7......0 | 7......0 | 7......0
*
* The bit pointer starts at bit0 of byte0 and moves left until it reaches
* bit7 of byte0, then jumps to bit0 of byte1, etc.
* @param {number} n The number of bits to peek.
* @param {boolean=} movePointers Whether to move the pointer, defaults false.
* @return {number} The peeked bits, as an unsigned number.
*/
bitjs.io.BitStream.prototype.peekBitsLtr = function(n, movePointers) {
if (n <= 0 || typeof n !== typeof 1) {
return 0;
}
var movePointers = movePointers || false,
bytePtr = this.bytePtr,
bitPtr = this.bitPtr,
result = 0,
bitsIn = 0,
bytes = this.bytes;
// keep going until we have no more bits left to peek at
// TODO: Consider putting all bits from bytes we will need into a variable and then
// shifting/masking it to just extract the bits we want.
// This could be considerably faster when reading more than 3 or 4 bits at a time.
while (n > 0) {
if (bytePtr >= bytes.length) {
throw "Error! Overflowed the bit stream! n=" + n + ", bytePtr=" + bytePtr + ", bytes.length=" +
bytes.length + ", bitPtr=" + bitPtr;
// return -1;
}
var numBitsLeftInThisByte = (8 - bitPtr);
var mask;
if (n >= numBitsLeftInThisByte) {
mask = (BITMASK[numBitsLeftInThisByte] << bitPtr);
result |= (((bytes[bytePtr] & mask) >> bitPtr) << bitsIn);
bytePtr++;
bitPtr = 0;
bitsIn += numBitsLeftInThisByte;
n -= numBitsLeftInThisByte;
} else {
mask = (BITMASK[n] << bitPtr);
result |= (((bytes[bytePtr] & mask) >> bitPtr) << bitsIn);
bitPtr += n;
bitsIn += n;
n = 0;
}
}
if (movePointers) {
this.bitPtr = bitPtr;
this.bytePtr = bytePtr;
}
return result;
};
/**
* byte0 byte1 byte2 byte3
* 7......0 | 7......0 | 7......0 | 7......0
*
* The bit pointer starts at bit7 of byte0 and moves right until it reaches
* bit0 of byte0, then goes to bit7 of byte1, etc.
* @param {number} n The number of bits to peek.
* @param {boolean=} movePointers Whether to move the pointer, defaults false.
* @return {number} The peeked bits, as an unsigned number.
*/
bitjs.io.BitStream.prototype.peekBitsRtl = function(n, movePointers) {
if (n <= 0 || typeof n !== typeof 1) {
return 0;
}
var movePointers = movePointers || false,
bytePtr = this.bytePtr,
bitPtr = this.bitPtr,
result = 0,
bytes = this.bytes;
// keep going until we have no more bits left to peek at
// TODO: Consider putting all bits from bytes we will need into a variable and then
// shifting/masking it to just extract the bits we want.
// This could be considerably faster when reading more than 3 or 4 bits at a time.
while (n > 0) {
if (bytePtr >= bytes.length) {
throw "Error! Overflowed the bit stream! n=" + n + ", bytePtr=" + bytePtr + ", bytes.length=" +
bytes.length + ", bitPtr=" + bitPtr;
// return -1;
}
var numBitsLeftInThisByte = (8 - bitPtr);
if (n >= numBitsLeftInThisByte) {
result <<= numBitsLeftInThisByte;
result |= (BITMASK[numBitsLeftInThisByte] & bytes[bytePtr]);
bytePtr++;
bitPtr = 0;
n -= numBitsLeftInThisByte;
} else {
result <<= n;
result |= ((bytes[bytePtr] & (BITMASK[n] << (8 - n - bitPtr))) >> (8 - n - bitPtr));
bitPtr += n;
n = 0;
}
}
if (movePointers) {
this.bitPtr = bitPtr;
this.bytePtr = bytePtr;
}
return result;
};
/**
* Peek at 16 bits from current position in the buffer.
* Bit at (bytePtr,bitPtr) has the highest position in returning data.
* Taken from getbits.hpp in unrar.
* TODO: Move this out of BitStream and into unrar.
*/
bitjs.io.BitStream.prototype.getBits = function() {
return (((((this.bytes[this.bytePtr] & 0xff) << 16) +
((this.bytes[this.bytePtr + 1] & 0xff) << 8) +
((this.bytes[this.bytePtr + 2] & 0xff))) >>> (8 - this.bitPtr)) & 0xffff);
};
/**
* Reads n bits out of the stream, consuming them (moving the bit pointer).
* @param {number} n The number of bits to read.
* @return {number} The read bits, as an unsigned number.
*/
bitjs.io.BitStream.prototype.readBits = function(n) {
return this.peekBits(n, true);
};
/**
* This returns n bytes as a sub-array, advancing the pointer if movePointers
* is true. Only use this for uncompressed blocks as this throws away remaining
* bits in the current byte.
* @param {number} n The number of bytes to peek.
* @param {boolean=} movePointers Whether to move the pointer, defaults false.
* @return {Uint8Array} The subarray.
*/
bitjs.io.BitStream.prototype.peekBytes = function(n, movePointers) {
if (n <= 0 || typeof n !== typeof 1) {
return 0;
}
// from http://tools.ietf.org/html/rfc1951#page-11
// "Any bits of input up to the next byte boundary are ignored."
while (this.bitPtr !== 0) {
this.readBits(1);
}
var movePointers = movePointers || false;
var bytePtr = this.bytePtr;
// bitPtr = this.bitPtr;
var result = this.bytes.subarray(bytePtr, bytePtr + n);
if (movePointers) {
this.bytePtr += n;
}
return result;
};
/**
* @param {number} n The number of bytes to read.
* @return {Uint8Array} The subarray.
*/
bitjs.io.BitStream.prototype.readBytes = function(n) {
return this.peekBytes(n, true);
};
})();

124
cps/static/js/io/bytebuffer.js
View File

@@ -1,124 +0,0 @@
/*
* bytestream.js
*
* Provides a writer for bytes.
*
* Licensed under the MIT License
*
* Copyright(c) 2011 Google Inc.
* Copyright(c) 2011 antimatter15
*/
/* global bitjs, Uint8Array */
var bitjs = bitjs || {};
bitjs.io = bitjs.io || {};
(function() {
/**
* A write-only Byte buffer which uses a Uint8 Typed Array as a backing store.
* @param {number} numBytes The number of bytes to allocate.
* @constructor
*/
bitjs.io.ByteBuffer = function(numBytes) {
if (typeof numBytes !== typeof 1 || numBytes <= 0) {
throw "Error! ByteBuffer initialized with '" + numBytes + "'";
}
this.data = new Uint8Array(numBytes);
this.ptr = 0;
};
/**
* @param {number} b The byte to insert.
*/
bitjs.io.ByteBuffer.prototype.insertByte = function(b) {
// TODO: throw if byte is invalid?
this.data[this.ptr++] = b;
};
/**
* @param {Array.<number>|Uint8Array|Int8Array} bytes The bytes to insert.
*/
bitjs.io.ByteBuffer.prototype.insertBytes = function(bytes) {
// TODO: throw if bytes is invalid?
this.data.set(bytes, this.ptr);
this.ptr += bytes.length;
};
/**
* Writes an unsigned number into the next n bytes. If the number is too large
* to fit into n bytes or is negative, an error is thrown.
* @param {number} num The unsigned number to write.
* @param {number} numBytes The number of bytes to write the number into.
*/
bitjs.io.ByteBuffer.prototype.writeNumber = function(num, numBytes) {
if (numBytes < 1) {
throw "Trying to write into too few bytes: " + numBytes;
}
if (num < 0) {
throw "Trying to write a negative number (" + num +
") as an unsigned number to an ArrayBuffer";
}
if (num > (Math.pow(2, numBytes * 8) - 1)) {
throw "Trying to write " + num + " into only " + numBytes + " bytes";
}
// Roll 8-bits at a time into an array of bytes.
var bytes = [];
while (numBytes-- > 0) {
var eightBits = num & 255;
bytes.push(eightBits);
num >>= 8;
}
this.insertBytes(bytes);
};
/**
* Writes a signed number into the next n bytes. If the number is too large
* to fit into n bytes, an error is thrown.
* @param {number} num The signed number to write.
* @param {number} numBytes The number of bytes to write the number into.
*/
bitjs.io.ByteBuffer.prototype.writeSignedNumber = function(num, numBytes) {
if (numBytes < 1) {
throw "Trying to write into too few bytes: " + numBytes;
}
var HALF = Math.pow(2, (numBytes * 8) - 1);
if (num >= HALF || num < -HALF) {
throw "Trying to write " + num + " into only " + numBytes + " bytes";
}
// Roll 8-bits at a time into an array of bytes.
var bytes = [];
while (numBytes-- > 0) {
var eightBits = num & 255;
bytes.push(eightBits);
num >>= 8;
}
this.insertBytes(bytes);
};
/**
* @param {string} str The ASCII string to write.
*/
bitjs.io.ByteBuffer.prototype.writeASCIIString = function(str) {
for (var i = 0; i < str.length; ++i) {
var curByte = str.charCodeAt(i);
if (curByte < 0 || curByte > 255) {
throw "Trying to write a non-ASCII string!";
}
this.insertByte(curByte);
}
};
})();

195
cps/static/js/io/bytestream.js
View File

@@ -1,195 +0,0 @@
/*
* bytestream.js
*
* Provides readers for byte streams.
*
* Licensed under the MIT License
*
* Copyright(c) 2011 Google Inc.
* Copyright(c) 2011 antimatter15
*/
/* global bitjs, Uint8Array */
var bitjs = bitjs || {};
bitjs.io = bitjs.io || {};
(function() {
/**
* This object allows you to peek and consume bytes as numbers and strings
* out of an ArrayBuffer. In this buffer, everything must be byte-aligned.
*
* @param {ArrayBuffer} ab The ArrayBuffer object.
* @param {number=} optOffset The offset into the ArrayBuffer
* @param {number=} optLength The length of this BitStream
* @constructor
*/
bitjs.io.ByteStream = function(ab, optOffset, optLength) {
var offset = optOffset || 0;
var length = optLength || ab.byteLength;
this.bytes = new Uint8Array(ab, offset, length);
this.ptr = 0;
};
/**
* Peeks at the next n bytes as an unsigned number but does not advance the
* pointer
* TODO: This apparently cannot read more than 4 bytes as a number?
* @param {number} n The number of bytes to peek at.
* @return {number} The n bytes interpreted as an unsigned number.
*/
bitjs.io.ByteStream.prototype.peekNumber = function(n) {
// TODO: return error if n would go past the end of the stream?
if (n <= 0 || typeof n !== typeof 1) {
return -1;
}
var result = 0;
// read from last byte to first byte and roll them in
var curByte = this.ptr + n - 1;
while (curByte >= this.ptr) {
result <<= 8;
result |= this.bytes[curByte];
--curByte;
}
return result;
};
/**
* Returns the next n bytes as an unsigned number (or -1 on error)
* and advances the stream pointer n bytes.
* @param {number} n The number of bytes to read.
* @return {number} The n bytes interpreted as an unsigned number.
*/
bitjs.io.ByteStream.prototype.readNumber = function(n) {
var num = this.peekNumber(n);
this.ptr += n;
return num;
};
/**
* Returns the next n bytes as a signed number but does not advance the
* pointer.
* @param {number} n The number of bytes to read.
* @return {number} The bytes interpreted as a signed number.
*/
bitjs.io.ByteStream.prototype.peekSignedNumber = function(n) {
var num = this.peekNumber(n);
var HALF = Math.pow(2, (n * 8) - 1);
var FULL = HALF * 2;
if (num >= HALF) num -= FULL;
return num;
};
/**
* Returns the next n bytes as a signed number and advances the stream pointer.
* @param {number} n The number of bytes to read.
* @return {number} The bytes interpreted as a signed number.
*/
bitjs.io.ByteStream.prototype.readSignedNumber = function(n) {
var num = this.peekSignedNumber(n);
this.ptr += n;
return num;
};
/**
* ToDo: Returns the next n bytes as a signed number and advances the stream pointer.
* @param {number} n The number of bytes to read.
* @return {number} The bytes interpreted as a signed number.
*/
bitjs.io.ByteStream.prototype.movePointer = function(n) {
this.ptr += n;
// end of buffer reached
if ((this.bytes.byteLength - this.ptr) < 0 ) {
this.ptr = this.bytes.byteLength;
}
}
/**
* ToDo: Returns the next n bytes as a signed number and advances the stream pointer.
* @param {number} n The number of bytes to read.
* @return {number} The bytes interpreted as a signed number.
*/
bitjs.io.ByteStream.prototype.moveTo = function(n) {
if ( n < 0 ) {
n = 0;
}
this.ptr = n;
// end of buffer reached
if ((this.bytes.byteLength - this.ptr) < 0 ) {
this.ptr = this.bytes.byteLength;
}
}
/**
* This returns n bytes as a sub-array, advancing the pointer if movePointers
* is true.
* @param {number} n The number of bytes to read.
* @param {boolean} movePointers Whether to move the pointers.
* @return {Uint8Array} The subarray.
*/
bitjs.io.ByteStream.prototype.peekBytes = function(n, movePointers) {
if (n <= 0 || typeof n !== typeof 1) {
return null;
}
var result = this.bytes.subarray(this.ptr, this.ptr + n);
if (movePointers) {
this.ptr += n;
}
return result;
};
/**
* Reads the next n bytes as a sub-array.
* @param {number} n The number of bytes to read.
* @return {Uint8Array} The subarray.
*/
bitjs.io.ByteStream.prototype.readBytes = function(n) {
return this.peekBytes(n, true);
};
/**
* Peeks at the next n bytes as a string but does not advance the pointer.
* @param {number} n The number of bytes to peek at.
* @return {string} The next n bytes as a string.
*/
bitjs.io.ByteStream.prototype.peekString = function(n) {
if (n <= 0 || typeof n !== typeof 1) {
return "";
}
var result = "";
for (var p = this.ptr, end = this.ptr + n; p < end; ++p) {
result += String.fromCharCode(this.bytes[p]);
}
return result;
};
/**
* Returns the next n bytes as an ASCII string and advances the stream pointer
* n bytes.
* @param {number} n The number of bytes to read.
* @return {string} The next n bytes as a string.
*/
bitjs.io.ByteStream.prototype.readString = function(n) {
var strToReturn = this.peekString(n);
this.ptr += n;
return strToReturn;
};
})();

124
cps/static/js/kthoom.js
View File

@@ -102,9 +102,8 @@ kthoom.setSettings = function() {
};
var createURLFromArray = function(array, mimeType) {
var offset = array.byteOffset;
var offset = 0; // array.byteOffset;
var len = array.byteLength;
// var url;
var blob;
if (mimeType === "image/xml+svg") {
@@ -164,11 +163,9 @@ kthoom.ImageFile = function(file) {
}
if ( this.mimeType !== undefined) {
this.dataURI = createURLFromArray(file.fileData, this.mimeType);
this.data = file;
}
};
function initProgressClick() {
$("#progress").click(function(e) {
var offset = $(this).offset();
@@ -185,72 +182,46 @@ function loadFromArrayBuffer(ab) {
var h = new Uint8Array(ab, 0, 10);
var pathToBitJS = "../../static/js/archive/";
var lastCompletion = 0;
if (h[0] === 0x52 && h[1] === 0x61 && h[2] === 0x72 && h[3] === 0x21) { //Rar!
unarchiver = new bitjs.archive.Unrarrer(ab, pathToBitJS);
} else if (h[0] === 80 && h[1] === 75) { //PK (Zip)
unarchiver = new bitjs.archive.Unzipper(ab, pathToBitJS);
} else if (h[0] === 255 && h[1] === 216) { // JPEG
// ToDo: check
updateProgress(100);
lastCompletion = 100;
return;
} else { // Try with tar
unarchiver = new bitjs.archive.Untarrer(ab, pathToBitJS);
}
// Listen for UnarchiveEvents.
if (unarchiver) {
unarchiver.addEventListener(bitjs.archive.UnarchiveEvent.Type.PROGRESS,
function(e) {
var percentage = e.currentBytesUnarchived / e.totalUncompressedBytesInArchive;
if (totalImages === 0) {
totalImages = e.totalFilesInArchive;
}
updateProgress(percentage * 100);
lastCompletion = percentage * 100;
});
unarchiver.addEventListener(bitjs.archive.UnarchiveEvent.Type.INFO,
function(e) {
// console.log(e.msg); // Enable debug output here
});
unarchiver.addEventListener(bitjs.archive.UnarchiveEvent.Type.EXTRACT,
function(e) {
// convert DecompressedFile into a bunch of ImageFiles
if (e.unarchivedFile) {
var f = e.unarchivedFile;
// add any new pages based on the filename
if (imageFilenames.indexOf(f.filename) === -1) {
var test = new kthoom.ImageFile(f);
if ( test.mimeType !== undefined) {
imageFilenames.push(f.filename);
imageFiles.push(test);
// add thumbnails to the TOC list
$("#thumbnails").append(
"<li>" +
"<a data-page='" + imageFiles.length + "'>" +
loadArchiveFormats(['rar', 'zip', 'tar'], function() {
// Open the file as an archive
archiveOpenFile(ab, function (archive, err) {
if (archive) {
totalImages = archive.entries.length
console.info('Uncompressing ' + archive.archive_type + ' ...');
archive.entries.forEach(function(e, i) {
updateProgress( (i + 1)/ totalImages * 100);
if (e.is_file) {
var f = e.readData(function(d) {
// add any new pages based on the filename
if (imageFilenames.indexOf(e.name) === -1) {
let data = {filename: e.name, fileData: d};
var test = new kthoom.ImageFile(data);
if (test.mimeType !== undefined) {
imageFilenames.push(e.name);
imageFiles.push(test);
// add thumbnails to the TOC list
$("#thumbnails").append(
"<li>" +
"<a data-page='" + imageFiles.length + "'>" +
"<img src='" + imageFiles[imageFiles.length - 1].dataURI + "'/>" +
"<span>" + imageFiles.length + "</span>" +
"</a>" +
"</li>"
);
// display first page if we haven't yet
if (imageFiles.length === currentImage + 1) {
updatePage(lastCompletion);
"</a>" +
"</li>"
);
// display first page if we haven't yet
if (imageFiles.length === currentImage + 1) {
updatePage(lastCompletion);
}
} else {
totalImages--;
}
}
} else {
totalImages--;
}
});
}
}
});
unarchiver.addEventListener(bitjs.archive.UnarchiveEvent.Type.FINISH,
function() {
var diff = ((new Date).getTime() - start) / 1000;
console.log("Unarchiving done in " + diff + "s");
});
unarchiver.start();
} else {
alert("Some error");
}
});
}
});
});
}
function scrollTocToActive() {
@@ -314,7 +285,6 @@ function updateProgress(loadPercentage) {
.find(".load").text("");
}
}
// Set page progress bar
$("#progress .bar-read").css({ width: totalImages === 0 ? 0 : Math.round((currentImage + 1) / totalImages * 100) + "%"});
}
@@ -564,26 +534,6 @@ function keyHandler(evt) {
}
}
/*function ImageLoadCallback() {
var jso = this.response;
// Unable to decompress file, or no response from server
if (jso === null) {
setImage("error");
} else {
// IE 11 sometimes sees the response as a string
if (typeof jso !== "object") {
jso = JSON.parse(jso);
}
if (jso.page !== jso.last) {
this.open("GET", this.fileid + "/" + (jso.page + 1));
this.addEventListener("load", ImageLoadCallback);
this.send();
}
loadFromArrayBuffer(jso);
}
}*/
function init(filename) {
var request = new XMLHttpRequest();
request.open("GET", filename);

2
cps/templates/readcbr.html
View File

@@ -15,8 +15,8 @@
<script src="{{ url_for('static', filename='js/libs/jquery.min.js') }}"></script>
<script src="{{ url_for('static', filename='js/libs/plugins.js') }}"></script>
<script src="{{ url_for('static', filename='js/libs/screenfull.min.js') }}"></script>
<script src="{{ url_for('static', filename='js/compress/uncompress.js') }}"></script>
<script src="{{ url_for('static', filename='js/kthoom.js') }}"></script>
<script src="{{ url_for('static', filename='js/archive/archive.js') }}"></script>
<script>
var updateArrows = function() {
if ($('input[name="direction"]:checked').val() === "0") {