293 lines
9.4 KiB
C++
293 lines
9.4 KiB
C++
/*
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* Copyright (c) 2010-2012 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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}
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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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void ResourceManager::discoverWorkDir(const std::string& appName, const std::string& existentFile)
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{
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// search for modules directory
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std::string sep = PHYSFS_getDirSeparator();
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std::string possiblePaths[] = { boost::filesystem::current_path().generic_string() + sep,
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g_resources.getBaseDir() + ".." + sep,
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g_resources.getBaseDir() + ".." + sep + "share" + sep + appName + sep,
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g_resources.getBaseDir() + appName + sep };
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bool found = false;
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for(const std::string& dir : possiblePaths) {
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// try to directory to modules path to see if it exists
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std::ifstream fin(dir + existentFile);
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if(fin) {
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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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}
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if(!found)
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g_logger.fatal(stdext::format("Unable to find %s, the application cannot be initialized.", existentFile));
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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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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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boost::filesystem::create_directory(writeDir);
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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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if(!PHYSFS_addToSearchPath(path.c_str(), pushFront ? 0 : 1))
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return false;
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if(pushFront)
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m_searchPaths.push_front(path);
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else
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m_searchPaths.push_back(path);
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m_hasSearchPath = true;
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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::loadFile(const std::string& fileName, std::iostream& out)
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{
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out.clear(std::ios::goodbit);
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if(m_hasSearchPath) {
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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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out.clear(std::ios::failbit);
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stdext::throw_exception(stdext::format("unable to load file '%s': %s", fullPath.c_str(), PHYSFS_getLastError()));
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} else {
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int fileSize = PHYSFS_fileLength(file);
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if(fileSize > 0) {
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std::vector<char> buffer(fileSize);
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PHYSFS_read(file, (void*)&buffer[0], 1, fileSize);
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out.write(&buffer[0], fileSize);
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} else
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out.clear(std::ios::eofbit);
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PHYSFS_close(file);
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out.seekg(0, std::ios::beg);
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}
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} else {
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std::ifstream fin(fileName);
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if(!fin) {
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out.clear(std::ios::failbit);
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stdext::throw_exception(stdext::format("unable to load file '%s': %s", fileName.c_str(), PHYSFS_getLastError()));
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} else {
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out << fin.rdbuf();
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}
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}
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}
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std::string ResourceManager::loadFile(const std::string& fileName)
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{
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std::stringstream fin;
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loadFile(fileName, fin);
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return fin.str();
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}
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bool ResourceManager::saveFile(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::saveFile(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 = saveFile(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::saveFile(const std::string& fileName, const std::string& data)
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{
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return saveFile(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::getBaseDir()
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{
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return PHYSFS_getBaseDir();
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}
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