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/*
* This file is part of nzbget. See <http://nzbget.net>.
*
* Copyright (C) 2007-2016 Andrey Prygunkov <hugbug@users.sourceforge.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 WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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, see <http://www.gnu.org/licenses/>.
*/
#include "nzbget.h"
#include "FileSystem.h"
#include "ParParser.h"
bool ParParser::FindMainPars(const char* path, ParFileList* fileList)
{
if (fileList)
{
fileList->clear();
}
DirBrowser dir(path);
while (const char* filename = dir.Next())
{
int baseLen = 0;
if (ParseParFilename(filename, true, &baseLen, nullptr))
{
if (!fileList)
{
return true;
}
// check if the base file already added to list
bool exists = false;
for (CString& filename2 : fileList)
{
exists = SameParCollection(filename, filename2, true);
if (exists)
{
break;
}
}
if (!exists)
{
fileList->emplace_back(filename);
}
}
}
return fileList && !fileList->empty();
}
bool ParParser::SameParCollection(const char* filename1, const char* filename2, bool confirmedFilenames)
{
int baseLen1 = 0, baseLen2 = 0;
return ParseParFilename(filename1, confirmedFilenames, &baseLen1, nullptr) &&
ParseParFilename(filename2, confirmedFilenames, &baseLen2, nullptr) &&
baseLen1 == baseLen2 &&
!strncasecmp(filename1, filename2, baseLen1);
}
bool ParParser::ParseParFilename(const char* parFilename, bool confirmedFilename, int* baseNameLen, int* blocks)
{
BString<1024> filename = parFilename;
for (char* p = filename; *p; p++) *p = tolower(*p); // convert string to lowercase
int len = strlen(filename);
if (len < 6)
{
return false;
}
if (!confirmedFilename)
{
// find last occurence of ".par2" and trim filename after it
char* end = filename;
while (char* p = strstr(end, ".par2")) end = p + 5;
*end = '\0';
}
len = strlen(filename);
if (len < 6)
{
return false;
}
if (strcasecmp(filename + len - 5, ".par2"))
{
return false;
}
*(filename + len - 5) = '\0';
int blockcnt = 0;
char* p = strrchr(filename, '.');
if (p && !strncasecmp(p, ".vol", 4))
{
char* b = strchr(p, '+');
if (!b)
{
b = strchr(p, '-');
}
if (b)
{
blockcnt = atoi(b+1);
*p = '\0';
}
}
if (baseNameLen)
{
*baseNameLen = strlen(filename);
}
if (blocks)
{
*blocks = blockcnt;
}
return true;
}
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