315 lines
9.9 KiB
C++
315 lines
9.9 KiB
C++
/*
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* Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "resourcemanager.h"
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#include "filestream.h"
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#include <framework/core/application.h>
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#include <framework/luaengine/luainterface.h>
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#include <physfs.h>
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#include <boost/filesystem.hpp>
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ResourceManager g_resources;
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void ResourceManager::init(const char *argv0)
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{
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PHYSFS_init(argv0);
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PHYSFS_permitSymbolicLinks(1);
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}
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void ResourceManager::terminate()
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{
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PHYSFS_deinit();
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}
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bool ResourceManager::discoverWorkDir(const std::string& existentFile)
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{
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// search for modules directory
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std::string possiblePaths[] = { g_resources.getCurrentDir(),
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g_resources.getBaseDir(),
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g_resources.getBaseDir() + "../",
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g_resources.getBaseDir() + "../share/" + g_app.getCompactName() + "/" };
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bool found = false;
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for(const std::string& dir : possiblePaths) {
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if(!PHYSFS_addToSearchPath(dir.c_str(), 0))
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continue;
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if(PHYSFS_exists(existentFile.c_str())) {
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g_logger.debug(stdext::format("Found work dir at '%s'", dir.c_str()));
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m_workDir = dir;
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found = true;
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break;
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}
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PHYSFS_removeFromSearchPath(dir.c_str());
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}
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return found;
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}
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bool ResourceManager::setupUserWriteDir(const std::string& appWriteDirName)
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{
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std::string userDir = PHYSFS_getUserDir();
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std::string dirName;
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#ifndef WIN32
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dirName = stdext::format(".%s", appWriteDirName);
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#else
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dirName = appWriteDirName;
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#endif
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std::string writeDir = userDir + dirName;
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if(!PHYSFS_setWriteDir(writeDir.c_str())) {
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if(!PHYSFS_setWriteDir(userDir.c_str()) || !PHYSFS_mkdir(dirName.c_str())) {
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g_logger.error(stdext::format("Unable to create write directory '%s': %s", writeDir, PHYSFS_getLastError()));
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return false;
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}
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}
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return setWriteDir(writeDir);
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}
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bool ResourceManager::setWriteDir(const std::string& writeDir, bool create)
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{
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if(!PHYSFS_setWriteDir(writeDir.c_str())) {
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g_logger.error(stdext::format("Unable to set write directory '%s': %s", writeDir, PHYSFS_getLastError()));
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return false;
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}
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if(!m_writeDir.empty())
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removeSearchPath(m_writeDir);
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m_writeDir = writeDir;
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if(!addSearchPath(writeDir))
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g_logger.error(stdext::format("Unable to add write '%s' directory to search path", writeDir));
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return true;
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}
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bool ResourceManager::addSearchPath(const std::string& path, bool pushFront)
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{
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std::string savePath = path;
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if(!PHYSFS_addToSearchPath(path.c_str(), pushFront ? 0 : 1)) {
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bool found = false;
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for(std::string searchPath : m_searchPaths) {
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std::string newPath = searchPath + path;
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if(PHYSFS_addToSearchPath(newPath.c_str(), pushFront ? 0 : 1)) {
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savePath = newPath;
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found = true;
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break;
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}
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}
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if(!found) {
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//g_logger.error(stdext::format("Could not add '%s' to directory search path. Reason %s", path, PHYSFS_getLastError()));
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return false;
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}
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}
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if(pushFront)
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m_searchPaths.push_front(savePath);
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else
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m_searchPaths.push_back(savePath);
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return true;
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}
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bool ResourceManager::removeSearchPath(const std::string& path)
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{
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if(!PHYSFS_removeFromSearchPath(path.c_str()))
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return false;
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auto it = std::find(m_searchPaths.begin(), m_searchPaths.end(), path);
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assert(it != m_searchPaths.end());
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m_searchPaths.erase(it);
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return true;
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}
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void ResourceManager::searchAndAddPackages(const std::string& packagesDir, const std::string& packageExt)
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{
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auto files = listDirectoryFiles(packagesDir);
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for(auto it = files.rbegin(); it != files.rend(); ++it) {
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const std::string& file = *it;
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if(!stdext::ends_with(file, packageExt))
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continue;
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std::string package = getRealDir(packagesDir) + "/" + file;
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if(!addSearchPath(package, true))
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g_logger.error(stdext::format("Unable to read package '%s': %s", package, PHYSFS_getLastError()));
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}
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}
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bool ResourceManager::fileExists(const std::string& fileName)
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{
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return (PHYSFS_exists(resolvePath(fileName).c_str()) && !PHYSFS_isDirectory(resolvePath(fileName).c_str()));
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}
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bool ResourceManager::directoryExists(const std::string& directoryName)
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{
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return (PHYSFS_isDirectory(resolvePath(directoryName).c_str()));
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}
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void ResourceManager::readFileStream(const std::string& fileName, std::iostream& out)
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{
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std::string buffer = readFileContents(fileName);
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if(buffer.length() == 0) {
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out.clear(std::ios::eofbit);
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return;
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}
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out.clear(std::ios::goodbit);
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out.write(&buffer[0], buffer.length());
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out.seekg(0, std::ios::beg);
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}
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std::string ResourceManager::readFileContents(const std::string& fileName)
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{
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std::string fullPath = resolvePath(fileName);
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PHYSFS_File* file = PHYSFS_openRead(fullPath.c_str());
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if(!file)
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stdext::throw_exception(stdext::format("unable to open file '%s': %s", fullPath, PHYSFS_getLastError()));
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int fileSize = PHYSFS_fileLength(file);
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std::string buffer(fileSize, 0);
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PHYSFS_read(file, (void*)&buffer[0], 1, fileSize);
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PHYSFS_close(file);
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return buffer;
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}
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bool ResourceManager::writeFileBuffer(const std::string& fileName, const uchar* data, uint size)
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{
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PHYSFS_file* file = PHYSFS_openWrite(fileName.c_str());
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if(!file) {
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g_logger.error(PHYSFS_getLastError());
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return false;
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}
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PHYSFS_write(file, (void*)data, size, 1);
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PHYSFS_close(file);
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return true;
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}
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bool ResourceManager::writeFileStream(const std::string& fileName, std::iostream& in)
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{
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std::streampos oldPos = in.tellg();
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in.seekg(0, std::ios::end);
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std::streampos size = in.tellg();
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in.seekg(0, std::ios::beg);
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std::vector<char> buffer(size);
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in.read(&buffer[0], size);
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bool ret = writeFileBuffer(fileName, (const uchar*)&buffer[0], size);
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in.seekg(oldPos, std::ios::beg);
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return ret;
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}
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bool ResourceManager::writeFileContents(const std::string& fileName, const std::string& data)
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{
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return writeFileBuffer(fileName, (const uchar*)data.c_str(), data.size());
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}
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FileStreamPtr ResourceManager::openFile(const std::string& fileName)
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{
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std::string fullPath = resolvePath(fileName);
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PHYSFS_File* file = PHYSFS_openRead(fullPath.c_str());
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if(!file)
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stdext::throw_exception(stdext::format("unable to open file '%s': %s", fullPath, PHYSFS_getLastError()));
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return FileStreamPtr(new FileStream(fullPath, file, false));
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}
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FileStreamPtr ResourceManager::appendFile(const std::string& fileName)
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{
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PHYSFS_File* file = PHYSFS_openAppend(fileName.c_str());
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if(!file)
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stdext::throw_exception(stdext::format("failed to append file '%s': %s", fileName, PHYSFS_getLastError()));
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return FileStreamPtr(new FileStream(fileName, file, true));
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}
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FileStreamPtr ResourceManager::createFile(const std::string& fileName)
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{
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PHYSFS_File* file = PHYSFS_openWrite(fileName.c_str());
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if(!file)
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stdext::throw_exception(stdext::format("failed to create file '%s': %s", fileName, PHYSFS_getLastError()));
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return FileStreamPtr(new FileStream(fileName, file, true));
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}
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bool ResourceManager::deleteFile(const std::string& fileName)
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{
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return PHYSFS_delete(resolvePath(fileName).c_str()) != 0;
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}
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bool ResourceManager::makeDir(const std::string directory)
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{
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return PHYSFS_mkdir(directory.c_str());
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}
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std::list<std::string> ResourceManager::listDirectoryFiles(const std::string& directoryPath)
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{
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std::list<std::string> files;
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auto rc = PHYSFS_enumerateFiles(resolvePath(directoryPath).c_str());
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for(int i = 0; rc[i] != NULL; i++)
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files.push_back(rc[i]);
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PHYSFS_freeList(rc);
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return files;
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}
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std::string ResourceManager::resolvePath(const std::string& path)
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{
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std::string fullPath;
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if(stdext::starts_with(path, "/"))
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fullPath = path;
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else {
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std::string scriptPath = "/" + g_lua.getCurrentSourcePath();
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if(!scriptPath.empty())
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fullPath += scriptPath + "/";
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fullPath += path;
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}
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if(!(stdext::starts_with(fullPath, "/")))
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g_logger.traceWarning(stdext::format("the following file path is not fully resolved: %s", path));
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stdext::replace_all(fullPath, "//", "/");
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return fullPath;
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}
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std::string ResourceManager::getRealDir(const std::string& path)
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{
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std::string dir;
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const char *cdir = PHYSFS_getRealDir(resolvePath(path).c_str());
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if(cdir)
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dir = cdir;
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return dir;
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}
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std::string ResourceManager::getCurrentDir()
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{
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return boost::filesystem::current_path().generic_string<std::string>() + "/";
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}
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std::string ResourceManager::getBaseDir()
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{
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return PHYSFS_getBaseDir();
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}
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std::string ResourceManager::guessFileType(const std::string& filename, const std::string& type)
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{
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if(g_resources.fileExists(filename))
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return filename;
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return filename + "." + type;
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}
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