mirror of
https://github.com/Ne-Lexa/php-zip.git
synced 2025-10-19 00:56:25 +02:00
php cs fix
This commit is contained in:
@@ -12,65 +12,287 @@ use PhpZip\Util\PackUtil;
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* Traditional PKWARE Encryption Engine.
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*
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* @see https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT .ZIP File Format Specification
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*
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* @author Ne-Lexa alexey@nelexa.ru
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* @license MIT
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*/
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class TraditionalPkwareEncryptionEngine implements ZipEncryptionEngine
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{
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/**
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* Encryption header size
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*/
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/** Encryption header size */
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const STD_DEC_HDR_SIZE = 12;
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/**
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* Crc table
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* Crc table.
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*
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* @var array
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*/
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private static $CRC_TABLE = [
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0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
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0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
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0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
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0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
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0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
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0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
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0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
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0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
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0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
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0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
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0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
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0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
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0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
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0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
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0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
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0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
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0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
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0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
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0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
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0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
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0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
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0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
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0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
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0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
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0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
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0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
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0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
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0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
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0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
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0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
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0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
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0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
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0x00000000,
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0x77073096,
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0xee0e612c,
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0x990951ba,
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0x076dc419,
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0x706af48f,
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0xe963a535,
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0x9e6495a3,
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0x0edb8832,
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0x79dcb8a4,
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0xe0d5e91e,
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0x97d2d988,
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0x09b64c2b,
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0x7eb17cbd,
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0xe7b82d07,
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0x90bf1d91,
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0x1db71064,
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0x6ab020f2,
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0xf3b97148,
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0x84be41de,
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0x1adad47d,
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0x6ddde4eb,
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0xf4d4b551,
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0x83d385c7,
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0x136c9856,
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0x646ba8c0,
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0xfd62f97a,
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0x8a65c9ec,
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0x14015c4f,
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0x63066cd9,
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0xfa0f3d63,
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0x8d080df5,
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0x3b6e20c8,
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0x4c69105e,
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0xd56041e4,
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0xa2677172,
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0x3c03e4d1,
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0x4b04d447,
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0xd20d85fd,
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0xa50ab56b,
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0x35b5a8fa,
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0x42b2986c,
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0xdbbbc9d6,
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0xacbcf940,
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0x32d86ce3,
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0x45df5c75,
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0xdcd60dcf,
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0xabd13d59,
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0x26d930ac,
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0x51de003a,
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0xc8d75180,
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0xbfd06116,
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0x21b4f4b5,
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0x56b3c423,
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0xcfba9599,
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0xb8bda50f,
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0x2802b89e,
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0x5f058808,
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0xc60cd9b2,
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0xb10be924,
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0x2f6f7c87,
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0x58684c11,
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0xc1611dab,
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0xb6662d3d,
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0x76dc4190,
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0x01db7106,
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0x98d220bc,
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0xefd5102a,
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0x71b18589,
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0x06b6b51f,
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0x9fbfe4a5,
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0xe8b8d433,
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0x7807c9a2,
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0x0f00f934,
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0x9609a88e,
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0xe10e9818,
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0x7f6a0dbb,
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0x086d3d2d,
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0x91646c97,
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0xe6635c01,
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0x6b6b51f4,
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0x1c6c6162,
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0x856530d8,
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0xf262004e,
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0x6c0695ed,
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0x1b01a57b,
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0x8208f4c1,
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0xf50fc457,
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0x65b0d9c6,
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0x12b7e950,
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0x8bbeb8ea,
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0xfcb9887c,
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0x62dd1ddf,
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0x15da2d49,
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0x8cd37cf3,
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0xfbd44c65,
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0x4db26158,
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0x3ab551ce,
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0xa3bc0074,
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0xd4bb30e2,
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0x4adfa541,
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0x3dd895d7,
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0xa4d1c46d,
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0xd3d6f4fb,
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0x4369e96a,
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0x346ed9fc,
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0xad678846,
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0xda60b8d0,
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0x44042d73,
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0x33031de5,
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0xaa0a4c5f,
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0xdd0d7cc9,
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0x5005713c,
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0x270241aa,
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0xbe0b1010,
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0xc90c2086,
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0x5768b525,
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0x206f85b3,
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0xb966d409,
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0xce61e49f,
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0x5edef90e,
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0x29d9c998,
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0xb0d09822,
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0xc7d7a8b4,
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0x59b33d17,
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0x2eb40d81,
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0xb7bd5c3b,
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0xc0ba6cad,
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0xedb88320,
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0x9abfb3b6,
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0x03b6e20c,
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0x74b1d29a,
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0xead54739,
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0x9dd277af,
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0x04db2615,
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0x73dc1683,
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0xe3630b12,
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0x94643b84,
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0x0d6d6a3e,
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0x7a6a5aa8,
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0xe40ecf0b,
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0x9309ff9d,
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0x0a00ae27,
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0x7d079eb1,
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0xf00f9344,
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0x8708a3d2,
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0x1e01f268,
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0x6906c2fe,
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0xf762575d,
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0x806567cb,
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0x196c3671,
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0x6e6b06e7,
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0xfed41b76,
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0x89d32be0,
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0x10da7a5a,
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0x67dd4acc,
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0xf9b9df6f,
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0x8ebeeff9,
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0x17b7be43,
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0x60b08ed5,
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0xd6d6a3e8,
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0xa1d1937e,
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0x38d8c2c4,
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0x4fdff252,
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0xd1bb67f1,
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0xa6bc5767,
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0x3fb506dd,
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0x48b2364b,
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0xd80d2bda,
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0xaf0a1b4c,
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0x36034af6,
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0x41047a60,
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0xdf60efc3,
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0xa867df55,
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0x316e8eef,
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0x4669be79,
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0xcb61b38c,
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0xbc66831a,
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0x256fd2a0,
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0x5268e236,
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0xcc0c7795,
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0xbb0b4703,
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0x220216b9,
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0x5505262f,
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0xc5ba3bbe,
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0xb2bd0b28,
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0x2bb45a92,
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0x5cb36a04,
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0xc2d7ffa7,
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0xb5d0cf31,
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0x2cd99e8b,
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0x5bdeae1d,
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0x9b64c2b0,
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0xec63f226,
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0x756aa39c,
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0x026d930a,
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0x9c0906a9,
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0xeb0e363f,
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0x72076785,
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0x05005713,
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0x95bf4a82,
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0xe2b87a14,
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0x7bb12bae,
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0x0cb61b38,
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0x92d28e9b,
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0xe5d5be0d,
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0x7cdcefb7,
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0x0bdbdf21,
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0x86d3d2d4,
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0xf1d4e242,
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0x68ddb3f8,
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0x1fda836e,
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0x81be16cd,
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0xf6b9265b,
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0x6fb077e1,
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0x18b74777,
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0x88085ae6,
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0xff0f6a70,
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0x66063bca,
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0x11010b5c,
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0x8f659eff,
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0xf862ae69,
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0x616bffd3,
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0x166ccf45,
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0xa00ae278,
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0xd70dd2ee,
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0x4e048354,
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0x3903b3c2,
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0xa7672661,
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0xd06016f7,
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0x4969474d,
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0x3e6e77db,
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0xaed16a4a,
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0xd9d65adc,
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0x40df0b66,
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0x37d83bf0,
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0xa9bcae53,
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0xdebb9ec5,
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0x47b2cf7f,
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0x30b5ffe9,
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0xbdbdf21c,
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0xcabac28a,
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0x53b39330,
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0x24b4a3a6,
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0xbad03605,
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0xcdd70693,
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0x54de5729,
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0x23d967bf,
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||||
0xb3667a2e,
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0xc4614ab8,
|
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0x5d681b02,
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0x2a6f2b94,
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0xb40bbe37,
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||||
0xc30c8ea1,
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0x5a05df1b,
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0x2d02ef8d,
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||||
];
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||||
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||||
/**
|
||||
* Encryption keys
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||||
* Encryption keys.
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||||
*
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||||
* @var array
|
||||
*/
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||||
private $keys = [];
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/**
|
||||
* @var ZipEntry
|
||||
*/
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||||
|
||||
/** @var ZipEntry */
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private $entry;
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|
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/**
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@@ -84,7 +306,7 @@ class TraditionalPkwareEncryptionEngine implements ZipEncryptionEngine
|
||||
}
|
||||
|
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/**
|
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* Initial keys
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* Initial keys.
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*
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||||
* @param string $password
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||||
*/
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@@ -93,6 +315,7 @@ class TraditionalPkwareEncryptionEngine implements ZipEncryptionEngine
|
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$this->keys[0] = 305419896;
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$this->keys[1] = 591751049;
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$this->keys[2] = 878082192;
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foreach (unpack('C*', $password) as $b) {
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$this->updateKeys($b);
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}
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@@ -105,17 +328,18 @@ class TraditionalPkwareEncryptionEngine implements ZipEncryptionEngine
|
||||
*/
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private function updateKeys($charAt)
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{
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$this->keys[0] = self::crc32($this->keys[0], $charAt);
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$this->keys[1] = $this->keys[1] + ($this->keys[0] & 0xff);
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$this->keys[0] = $this->crc32($this->keys[0], $charAt);
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$this->keys[1] += ($this->keys[0] & 0xff);
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$this->keys[1] = PackUtil::toSignedInt32($this->keys[1] * 134775813 + 1);
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$this->keys[2] = PackUtil::toSignedInt32(self::crc32($this->keys[2], ($this->keys[1] >> 24) & 0xff));
|
||||
$this->keys[2] = PackUtil::toSignedInt32($this->crc32($this->keys[2], ($this->keys[1] >> 24) & 0xff));
|
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}
|
||||
|
||||
/**
|
||||
* Update crc.
|
||||
*
|
||||
* @param int $oldCrc
|
||||
* @param string $charAt
|
||||
* @param int $charAt
|
||||
*
|
||||
* @return int
|
||||
*/
|
||||
private function crc32($oldCrc, $charAt)
|
||||
@@ -125,8 +349,10 @@ class TraditionalPkwareEncryptionEngine implements ZipEncryptionEngine
|
||||
|
||||
/**
|
||||
* @param string $content
|
||||
* @return string
|
||||
*
|
||||
* @throws ZipAuthenticationException
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function decrypt($content)
|
||||
{
|
||||
@@ -135,6 +361,7 @@ class TraditionalPkwareEncryptionEngine implements ZipEncryptionEngine
|
||||
|
||||
$headerBytes = array_values(unpack('C*', substr($content, 0, self::STD_DEC_HDR_SIZE)));
|
||||
$byte = 0;
|
||||
|
||||
foreach ($headerBytes as &$byte) {
|
||||
$byte = ($byte ^ $this->decryptByte()) & 0xff;
|
||||
$this->updateKeys($byte);
|
||||
@@ -147,19 +374,24 @@ class TraditionalPkwareEncryptionEngine implements ZipEncryptionEngine
|
||||
// compare against the CRC otherwise
|
||||
$checkByte = ($this->entry->getCrc() >> 24) & 0xff;
|
||||
}
|
||||
|
||||
if ($byte !== $checkByte) {
|
||||
throw new ZipAuthenticationException(sprintf(
|
||||
'Invalid password for zip entry "%s"',
|
||||
$this->entry->getName()
|
||||
));
|
||||
throw new ZipAuthenticationException(
|
||||
sprintf(
|
||||
'Invalid password for zip entry "%s"',
|
||||
$this->entry->getName()
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
$outputContent = "";
|
||||
$outputContent = '';
|
||||
|
||||
foreach (unpack('C*', substr($content, self::STD_DEC_HDR_SIZE)) as $val) {
|
||||
$val = ($val ^ $this->decryptByte()) & 0xff;
|
||||
$this->updateKeys($val);
|
||||
$outputContent .= pack('c', $val);
|
||||
}
|
||||
|
||||
return $outputContent;
|
||||
}
|
||||
|
||||
@@ -171,15 +403,18 @@ class TraditionalPkwareEncryptionEngine implements ZipEncryptionEngine
|
||||
private function decryptByte()
|
||||
{
|
||||
$temp = $this->keys[2] | 2;
|
||||
|
||||
return (($temp * ($temp ^ 1)) >> 8) & 0xffffff;
|
||||
}
|
||||
|
||||
/**
|
||||
* Encryption data
|
||||
* Encryption data.
|
||||
*
|
||||
* @param string $data
|
||||
* @return string
|
||||
*
|
||||
* @throws ZipCryptoException
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
public function encrypt($data)
|
||||
{
|
||||
@@ -196,13 +431,16 @@ class TraditionalPkwareEncryptionEngine implements ZipEncryptionEngine
|
||||
$headerBytes[self::STD_DEC_HDR_SIZE - 2] = pack('c', ($crc >> 16) & 0xff);
|
||||
|
||||
$headerBytes = $this->encryptData($headerBytes);
|
||||
|
||||
return $headerBytes . $this->encryptData($data);
|
||||
}
|
||||
|
||||
/**
|
||||
* @param string $content
|
||||
* @return string
|
||||
*
|
||||
* @throws ZipCryptoException
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
private function encryptData($content)
|
||||
{
|
||||
@@ -210,20 +448,24 @@ class TraditionalPkwareEncryptionEngine implements ZipEncryptionEngine
|
||||
throw new ZipCryptoException('content is null');
|
||||
}
|
||||
$buff = '';
|
||||
|
||||
foreach (unpack('C*', $content) as $val) {
|
||||
$buff .= pack('c', $this->encryptByte($val));
|
||||
}
|
||||
|
||||
return $buff;
|
||||
}
|
||||
|
||||
/**
|
||||
* @param int $byte
|
||||
*
|
||||
* @return int
|
||||
*/
|
||||
private function encryptByte($byte)
|
||||
{
|
||||
$tempVal = $byte ^ $this->decryptByte() & 0xff;
|
||||
$this->updateKeys($byte);
|
||||
|
||||
return $tempVal;
|
||||
}
|
||||
}
|
||||
|
Reference in New Issue
Block a user