diff options
Diffstat (limited to 'kftpgrabber/src/checksumverifier.cpp')
-rw-r--r-- | kftpgrabber/src/checksumverifier.cpp | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/kftpgrabber/src/checksumverifier.cpp b/kftpgrabber/src/checksumverifier.cpp new file mode 100644 index 0000000..022e79c --- /dev/null +++ b/kftpgrabber/src/checksumverifier.cpp @@ -0,0 +1,272 @@ +/* + * This file is part of the KFTPGrabber project + * + * Copyright (C) 2003-2005 by the KFTPGrabber developers + * Copyright (C) 2003-2005 Jernej Kos <kostko@jweb-network.net> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * is provided AS IS, WITHOUT ANY WARRANTY; without even the implied + * warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and + * NON-INFRINGEMENT. See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston, + * MA 02110-1301, USA. + * + * In addition, as a special exception, the copyright holders give + * permission to link the code of portions of this program with the + * OpenSSL library under certain conditions as described in each + * individual source file, and distribute linked combinations + * including the two. + * + * You must obey the GNU General Public License in all respects + * for all of the code used other than OpenSSL. If you modify + * file(s) with this exception, you may extend this exception to your + * version of the file(s), but you are not obligated to do so. If you + * do not wish to do so, delete this exception statement from your + * version. If you delete this exception statement from all source + * files in the program, then also delete it here. + */ + +#include "checksumverifier.h" + +#include <qfile.h> +#include <qdir.h> +#include <qapplication.h> + +#include <stdio.h> + +#include <kmdcodec.h> +#include <kurl.h> + +namespace KFTPCore { + +ChecksumVerifierThread::ChecksumVerifierThread(ChecksumVerifier *verifier) + : QThread(), + m_verifier(verifier) +{ +} + +void ChecksumVerifierThread::run() +{ + switch (m_verifier->m_type) { + case ChecksumVerifier::CheckMd5: break; + case ChecksumVerifier::CheckSfv: checkSFV(m_verifier->m_filename); break; + } +} + + +void ChecksumVerifierThread::checkSFV(const QString &sfvfile, const QString &fileToCheck) +{ + QString fileDir = KURL(sfvfile).directory(false); + QDir fileSystem; + QFile file(sfvfile); + if (!file.open(IO_ReadOnly)) { + // Dispatch the event that we have failed the verification + ChecksumVerifierThreadEvent *e = new ChecksumVerifierThreadEvent(2); + qApp->postEvent(m_verifier, e); + return; + } + + QValueList<QPair<QString, QString> > fileList; + while (!file.atEnd()) { + QString line; + file.readLine(line, 1024); + line = line.simplifyWhiteSpace(); + + // Check if the line is a comment or a blank line (<3 chars) + if (line[0] == ';' || line.length() < 3) + continue; + + // filename.r00 C46D96FF + QString fileName = line.section(' ', 0, 0); + QString checksum = line.section(' ', 1, 1); + checksum = checksum.lower(); + + if (checksum.length() != 8) { + // Dispatch the event that we have failed the verification + ChecksumVerifierThreadEvent *e = new ChecksumVerifierThreadEvent(2); + qApp->postEvent(m_verifier, e); + file.close(); + return; + } + + if (fileToCheck != QString::null && fileName != fileToCheck) + continue; + + fileList.append(QPair<QString, QString>(fileName, checksum)); + } + file.close(); + + // Dispatch the event that we have the list + ChecksumVerifierThreadEvent *e = new ChecksumVerifierThreadEvent(fileList); + qApp->postEvent(m_verifier, e); + + // Check the obtained checksums + int done = 0; + for (QValueList<QPair<QString, QString> >::iterator i = fileList.begin(); i != fileList.end(); ++i) { + if (!fileSystem.exists(fileDir + (*i).first)) { + ChecksumVerifierThreadEvent *e = new ChecksumVerifierThreadEvent((*i).first, ChecksumVerifier::NotFound); + qApp->postEvent(m_verifier, e); + + e = new ChecksumVerifierThreadEvent(3, (++done * 100) / fileList.count()); + qApp->postEvent(m_verifier, e); + continue; + } + + long l_fileCRC = getFileCRC(QString(fileDir + (*i).first).ascii()); + QString fileCRC; + fileCRC.sprintf("%08lX", l_fileCRC); + fileCRC = fileCRC.lower(); + + ChecksumVerifierThreadEvent *e = new ChecksumVerifierThreadEvent((*i).first, fileCRC == (*i).second ? ChecksumVerifier::Ok : ChecksumVerifier::Error); + qApp->postEvent(m_verifier, e); + + e = new ChecksumVerifierThreadEvent(3, (++done * 100) / fileList.count()); + qApp->postEvent(m_verifier, e); + } +} + +inline long ChecksumVerifierThread::UpdateCRC(register unsigned long CRC, register char *buffer, register long count) +{ + unsigned long CRCTABLE[] = { + 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, + 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, + 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, + 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, + 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, + 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, + 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, + 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, + 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, + 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, + 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, + 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, + 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, + 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, + 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, + 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, + 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, + 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, + 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, + 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, + 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, + 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, + 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, + 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, + 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, + 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, + 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, + 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, + 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, + 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, + 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, + 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, + 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, + 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, + 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, + 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, + 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, + 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, + 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, + 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, + 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, + 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, + 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d + }; + + if (buffer && count) { + do { + CRC = + ((CRC >> 8) & 0xFFFFFF) ^ + CRCTABLE[(unsigned char)((CRC & 0xff) ^ + *buffer++)]; + } + while (--count); + + } + return CRC; +} + +long ChecksumVerifierThread::getFileCRC(const char *filename) +{ + register unsigned long crc = 0xffffffff; + FILE *f; + long totalread = 0; + long localread; + + /* + * Note: different buffer sizes may result in noticable + * different performance depending on system, so feel + * free to modify. + */ +#define BUFFERSIZE 65536*16 + char buffer[BUFFERSIZE]; + + if ((f = fopen(filename, "rb")) != NULL) { + do { + if ((localread = fread(buffer, 1, BUFFERSIZE, f))) { + crc = UpdateCRC(crc, buffer, localread); + totalread = totalread + localread; + } + } + while (localread > 0); + fclose(f); + + crc = crc ^ 0xffffffff; + } else { + return -1; + } + + return crc; +#undef BUFFERSIZE +} + +ChecksumVerifier::ChecksumVerifier(const QString &filename, Type type) + : QObject(), + m_filename(filename), + m_type(type), + m_thread(0) +{ +} + +ChecksumVerifier::~ChecksumVerifier() +{ + if (m_thread) { + m_thread->terminate(); + m_thread->wait(); + + delete m_thread; + } +} + +void ChecksumVerifier::verify() +{ + m_thread = new ChecksumVerifierThread(this); + m_thread->start(); +} + +void ChecksumVerifier::customEvent(QCustomEvent *e) +{ + if (e->type() == CV_THR_EVENT_ID) { + ChecksumVerifierThreadEvent *ev = static_cast<ChecksumVerifierThreadEvent*>(e); + + switch (ev->m_type) { + case 0: emit fileDone(ev->m_filename, ev->m_result); break; + case 1: emit fileList(ev->m_list); break; + case 2: emit error(); break; + case 3: emit progress(ev->m_progress); break; + } + } +} + +} + +#include "checksumverifier.moc" + |