mirror of
https://github.com/nzbget/nzbget.git
synced 2025-12-23 22:27:45 -05:00
129 lines
2.8 KiB
C++
129 lines
2.8 KiB
C++
/*
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* This file is part of nzbget. See <http://nzbget.net>.
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*
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* Copyright (C) 2007-2016 Andrey Prygunkov <hugbug@users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "nzbget.h"
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#include "FileSystem.h"
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#include "ParParser.h"
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bool ParParser::FindMainPars(const char* path, ParFileList* fileList)
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{
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if (fileList)
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{
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fileList->clear();
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}
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DirBrowser dir(path);
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while (const char* filename = dir.Next())
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{
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int baseLen = 0;
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if (ParseParFilename(filename, true, &baseLen, nullptr))
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{
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if (!fileList)
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{
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return true;
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}
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// check if the base file already added to list
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bool exists = false;
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for (CString& filename2 : fileList)
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{
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exists = SameParCollection(filename, filename2, true);
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if (exists)
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{
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break;
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}
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}
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if (!exists)
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{
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fileList->emplace_back(filename);
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}
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}
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}
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return fileList && !fileList->empty();
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}
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bool ParParser::SameParCollection(const char* filename1, const char* filename2, bool confirmedFilenames)
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{
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int baseLen1 = 0, baseLen2 = 0;
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return ParseParFilename(filename1, confirmedFilenames, &baseLen1, nullptr) &&
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ParseParFilename(filename2, confirmedFilenames, &baseLen2, nullptr) &&
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baseLen1 == baseLen2 &&
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!strncasecmp(filename1, filename2, baseLen1);
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}
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bool ParParser::ParseParFilename(const char* parFilename, bool confirmedFilename, int* baseNameLen, int* blocks)
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{
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BString<1024> filename = parFilename;
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for (char* p = filename; *p; p++) *p = tolower(*p); // convert string to lowercase
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int len = strlen(filename);
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if (len < 6)
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{
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return false;
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}
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if (!confirmedFilename)
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{
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// find last occurence of ".par2" and trim filename after it
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char* end = filename;
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while (char* p = strstr(end, ".par2")) end = p + 5;
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*end = '\0';
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}
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len = strlen(filename);
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if (len < 6)
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{
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return false;
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}
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if (strcasecmp(filename + len - 5, ".par2"))
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{
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return false;
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}
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*(filename + len - 5) = '\0';
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int blockcnt = 0;
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char* p = strrchr(filename, '.');
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if (p && !strncasecmp(p, ".vol", 4))
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{
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char* b = strchr(p, '+');
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if (!b)
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{
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b = strchr(p, '-');
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}
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if (b)
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{
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blockcnt = atoi(b+1);
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*p = '\0';
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}
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}
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if (baseNameLen)
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{
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*baseNameLen = strlen(filename);
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}
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if (blocks)
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{
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*blocks = blockcnt;
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}
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return true;
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}
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