Rogiel/php-mpq
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Add explicit MPQ parsing

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This commit is contained in:
Rogiel Sulzbach
2016-01-18 21:06:07 -02:00
parent 7f516c051a
commit 5a8edbf7fc
1 changed files with 52 additions and 12 deletions
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64
src/MPQFile.php
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@@ -52,6 +52,11 @@ class MPQFile {
*/ */
private $stream; private $stream;
/**
* @var boolean
*/
private $parsed;
/** /**
* @var UserData * @var UserData
*/ */
@@ -74,18 +79,25 @@ class MPQFile {
public function __construct(Stream $stream) { public function __construct(Stream $stream) {
$this->stream = $stream; $this->stream = $stream;
$this->parse();
} }
// ----------------------------------------------------------------------------------------------------------------- // -----------------------------------------------------------------------------------------------------------------
private function parse() { public function isParsed() {
return $this->parsed;
}
public function parse() {
if($this->isParsed()) {
return;
}
$parser = new BinaryStreamParser($this->stream); $parser = new BinaryStreamParser($this->stream);
$signature = $this->parseSignature($parser); $signature = $this->parseSignature($parser);
if($signature == "MPQ27") { if($signature == "MPQ27") {
$this->userData = UserData::parse($parser); $this->userData = UserData::parse($parser);
$this->stream->seek($this->userData->getHeaderOffset()); $this->stream->seek($this->getUserDataOffset());
} }
$signature = $this->parseSignature($parser); $signature = $this->parseSignature($parser);
@@ -95,15 +107,17 @@ class MPQFile {
$this->hashTable = $this->parseHashTable(); $this->hashTable = $this->parseHashTable();
$this->blockTable = $this->parseBlockTable(); $this->blockTable = $this->parseBlockTable();
$this->parsed = true;
} }
private function parseHashTable() { private function parseHashTable() {
$hashing = new FileKeyHashing(); $hashing = new FileKeyHashing();
$encryptedStream = new EncryptedStream($this->stream, new DefaultEncryption($hashing->hash('(hash table)'))); $encryptedStream = new EncryptedStream($this->stream, new DefaultEncryption($hashing->hash('(hash table)')));
$parser = new BinaryStreamParser($encryptedStream); $parser = new BinaryStreamParser($encryptedStream);
$parser->seek($this->userData->getHeaderOffset() + $this->header->getHashTablePos()); $parser->seek($this->getUserDataOffset() + $this->getHeader()->getHashTablePos());
$hashes = array(); $hashes = array();
for($i = 0; $i<$this->header->getHashTableSize(); $i++) { for($i = 0; $i<$this->getHeader()->getHashTableSize(); $i++) {
$hashes[$i] = Hash::parse($parser); $hashes[$i] = Hash::parse($parser);
} }
return new HashTable($hashes); return new HashTable($hashes);
@@ -113,10 +127,15 @@ class MPQFile {
$hashing = new FileKeyHashing(); $hashing = new FileKeyHashing();
$encryptedStream = new EncryptedStream($this->stream, new DefaultEncryption($hashing->hash('(block table)'))); $encryptedStream = new EncryptedStream($this->stream, new DefaultEncryption($hashing->hash('(block table)')));
$parser = new BinaryStreamParser($encryptedStream); $parser = new BinaryStreamParser($encryptedStream);
$parser->seek($this->userData->getHeaderOffset() + $this->header->getBlockTablePos()); $parser->seek($this->getUserDataOffset() + $this->getHeader()->getBlockTablePos());
$blocks = array(); $blocks = array();
for($i = 0; $i<$this->header->getBlockTableSize(); $i++) {
$blocks[$i] = Block::parse($parser); $offsetFix = 0;
for($i = 0; $i<$this->getHeader()->getBlockTableSize(); $i++) {
$block = $blocks[$i - $offsetFix] = Block::parse($parser);
if($block->getSize() == 0) {
$offsetFix++;
}
} }
return new BlockTable($blocks); return new BlockTable($blocks);
} }
@@ -132,6 +151,16 @@ class MPQFile {
// ----------------------------------------------------------------------------------------------------------------- // -----------------------------------------------------------------------------------------------------------------
private function getUserDataOffset() {
$userData = $this->getUserData();
if($userData === null) {
return 0;
}
return $userData->getHeaderOffset();
}
// -----------------------------------------------------------------------------------------------------------------
/** /**
* @param $fileName * @param $fileName
* @return null|Hash * @return null|Hash
@@ -143,7 +172,7 @@ class MPQFile {
$hashA = $hashingA->hash($fileName); $hashA = $hashingA->hash($fileName);
$hashB = $hashingB->hash($fileName); $hashB = $hashingB->hash($fileName);
return $this->hashTable->findHashByHash($hashA, $hashB); return $this->getHashTable()->findHashByHash($hashA, $hashB);
} }
/** /**
@@ -165,7 +194,7 @@ class MPQFile {
} }
$stream = clone $this->stream; $stream = clone $this->stream;
$stream->seek($this->userData->getHeaderOffset() + $block->getFilePos()); $stream->seek($this->getUserDataOffset() + $block->getFilePos());
$parser = new BinaryStreamParser($stream); $parser = new BinaryStreamParser($stream);
$sectors = array(); $sectors = array();
@@ -173,11 +202,22 @@ class MPQFile {
$blockSize = $block->getCompressedSize(); $blockSize = $block->getCompressedSize();
$fileSize = $block->getSize(); $fileSize = $block->getSize();
for ($i = $fileSize;$i > 0;$i -= $this->header->getBlockSize()) { print_r($this->getBlockTable()->getBlocks());
// print_r($block);
// echo $block->isExisting() ? "true" : "false";
// echo "\n";
//
// echo $fileSize."\n";
// echo $this->getHeader()->getBlockSize()."\n";
for ($i = $fileSize; $i > 0; $i -= $blockSize) {
echo $i;
$sectors[] = $parser->readUInt32(); $sectors[] = $parser->readUInt32();
$blockSize -= 4; $blockSize -= 4;
} }
$sectors[] = $parser->readUInt32(); print_r($sectors);
// $sectors[] = $parser->readUInt32();
} else { } else {
$sectors = array( $sectors = array(
0, 0,