From 16cb089845b3adcdd605d138d903bd7ada0f9e03 Mon Sep 17 00:00:00 2001 From: Eugenio Favalli Date: Tue, 12 Dec 2006 15:52:42 +0000 Subject: Added Adler32 checksum for updates --- src/gui/updatewindow.cpp | 171 ++++++++++++++++++++++++++++++----------------- src/gui/updatewindow.h | 9 ++- 2 files changed, 115 insertions(+), 65 deletions(-) (limited to 'src/gui') diff --git a/src/gui/updatewindow.cpp b/src/gui/updatewindow.cpp index a23438cb..3bdd5526 100644 --- a/src/gui/updatewindow.cpp +++ b/src/gui/updatewindow.cpp @@ -26,6 +26,7 @@ #include #include #include +#include #include @@ -48,9 +49,9 @@ UpdaterWindow::UpdaterWindow(): Window("Updating..."), mThread(NULL), mMutex(NULL), mDownloadStatus(UPDATE_NEWS), mUpdateHost(""), mCurrentFile("news.txt"), mBasePath(""), - mStoreInMemory(true), mDownloadComplete(true), mUserCancel(false), - mDownloadedBytes(0), mMemoryBuffer(NULL), - mCurlError(new char[CURL_ERROR_SIZE]), mFileIndex(0) + mStoreInMemory(true), mDownloadComplete(true), mUserCancel(false), + mDownloadedBytes(0), mMemoryBuffer(NULL), + mCurlError(new char[CURL_ERROR_SIZE]), mLineIndex(0) { mCurlError[0] = 0; @@ -233,78 +234,116 @@ size_t UpdaterWindow::memoryWrite(void *ptr, int UpdaterWindow::downloadThread(void *ptr) { + int attempts = 0; + UpdaterWindow *uw = reinterpret_cast(ptr); CURL *curl; CURLcode res; - FILE *outfile = NULL; - UpdaterWindow *uw = reinterpret_cast(ptr); std::string outFilename; std::string url(uw->mUpdateHost + "/" + uw->mCurrentFile); - uw->setLabel(uw->mCurrentFile + " (0%)"); - curl = curl_easy_init(); + while (attempts < 3 && !uw->mDownloadComplete) { + FILE *outfile = NULL; + uw->setLabel(uw->mCurrentFile + " (0%)"); - if (curl) - { - logger->log("Downloading: %s", url.c_str()); + curl = curl_easy_init(); - if (uw->mStoreInMemory) + if (curl) { - uw->mDownloadedBytes = 0; - curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1); - curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, - UpdaterWindow::memoryWrite); - curl_easy_setopt(curl, CURLOPT_WRITEDATA, ptr); - } - else - { - // Download in the proper folder : ./updates under win, - // /home/user/.tmw/updates for unices - outFilename = uw->mBasePath + "/updates/download.temp"; - outfile = fopen(outFilename.c_str(), "wb"); - curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile); - } + logger->log("Downloading: %s", url.c_str()); - curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, uw->mCurlError); - curl_easy_setopt(curl, CURLOPT_URL, url.c_str()); - curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0); - curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, - UpdaterWindow::updateProgress); - curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, ptr); - curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1); - curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 15); + if (uw->mStoreInMemory) + { + uw->mDownloadedBytes = 0; + curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1); + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, + UpdaterWindow::memoryWrite); + curl_easy_setopt(curl, CURLOPT_WRITEDATA, ptr); + } + else + { + // Download in the proper folder : ./updates under win, + // /home/user/.tmw/updates for unices + outFilename = uw->mBasePath + "/updates/download.temp"; + outfile = fopen(outFilename.c_str(), "w+b"); + curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile); + } - if ((res = curl_easy_perform(curl)) != 0) - { - uw->mDownloadStatus = UPDATE_ERROR; - switch (res) + curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, uw->mCurlError); + curl_easy_setopt(curl, CURLOPT_URL, url.c_str()); + curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0); + curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, + UpdaterWindow::updateProgress); + curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, ptr); + curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1); + curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 15); + + if ((res = curl_easy_perform(curl)) != 0) { - case CURLE_COULDNT_CONNECT: // give more debug info on that error - std::cerr << "curl error " << res << " : " << uw->mCurlError << " " << url.c_str() - << std::endl; - break; - - default: - std::cerr << "curl error " << res << " : " << uw->mCurlError << " host: " << url.c_str() - << std::endl; + uw->mDownloadStatus = UPDATE_ERROR; + switch (res) + { + case CURLE_COULDNT_CONNECT: // give more debug info on that error + std::cerr << "curl error " << res << " : " << uw->mCurlError << " " << url.c_str() + << std::endl; + break; + + default: + std::cerr << "curl error " << res << " : " << uw->mCurlError << " host: " << url.c_str() + << std::endl; + } } - } - curl_easy_cleanup(curl); - uw->mDownloadComplete = true; + curl_easy_cleanup(curl); - if (!uw->mStoreInMemory) - { - fclose(outfile); + uw->mDownloadComplete = true; - // Give the file the proper name - std::string newName(uw->mBasePath + "/updates/" + - uw->mCurrentFile.c_str()); + if (!uw->mStoreInMemory) + { + long fileSize; + char *buffer; + // Obtain file size. + fseek(outfile, 0, SEEK_END); + fileSize = ftell(outfile); + rewind(outfile); + buffer = (char*)malloc(fileSize); + fread(buffer, 1, fileSize, outfile); + fclose(outfile); + + // Give the file the proper name + std::string newName(uw->mBasePath + "/updates/" + + uw->mCurrentFile.c_str()); + + // Any existing file with this name is deleted first, otherwise the + // rename will fail on Windows. + ::remove(newName.c_str()); + ::rename(outFilename.c_str(), newName.c_str()); + + // Don't check resources2.txt checksum + if (uw->mDownloadStatus == UPDATE_RESOURCES) + { + // Calculate Adler-32 checksum + unsigned long adler = adler32(0L, Z_NULL, 0); + adler = adler32(adler, (Bytef *)buffer, fileSize); + free(buffer); + + if (uw->mCurrentChecksum != adler) { + uw->mDownloadComplete = false; + // Remove the corrupted file + ::remove(newName.c_str()); + logger->log( + "Checksum for file %s failed: (%lx/%lx)", + uw->mCurrentFile.c_str(), + adler, uw->mCurrentChecksum); + } + } - // Any existing file with this name is deleted first, otherwise the - // rename will fail on Windows. - ::remove(newName.c_str()); - ::rename(outFilename.c_str(), newName.c_str()); + } } + attempts++; + } + + if (!uw->mDownloadComplete) { + uw->mDownloadStatus = UPDATE_ERROR; } return 0; @@ -356,7 +395,7 @@ void UpdaterWindow::logic() // Parse current memory buffer as news and dispose of the data loadNews(); - mCurrentFile = "resources.txt"; + mCurrentFile = "resources2.txt"; mStoreInMemory = false; download(); mDownloadStatus = UPDATE_LIST; @@ -366,7 +405,7 @@ void UpdaterWindow::logic() if (mDownloadComplete) { ResourceManager *resman = ResourceManager::getInstance(); - mFiles = resman->loadTextFile("updates/resources.txt"); + mLines = resman->loadTextFile("updates/resources2.txt"); mStoreInMemory = false; mDownloadStatus = UPDATE_RESOURCES; } @@ -380,9 +419,15 @@ void UpdaterWindow::logic() mThread = NULL; } - if (mFileIndex < mFiles.size()) + if (mLineIndex < mLines.size()) { - mCurrentFile = mFiles[mFileIndex]; + std::stringstream line(mLines[mLineIndex]); + line >> mCurrentFile; + std::string checksum; + line >> checksum; + std::stringstream ss(checksum); + ss >> std::hex >> mCurrentChecksum; + std::ifstream temp( (mBasePath + "/updates/" + mCurrentFile).c_str()); if (!temp.is_open()) @@ -394,7 +439,7 @@ void UpdaterWindow::logic() { logger->log("%s already here", mCurrentFile.c_str()); } - mFileIndex++; + mLineIndex++; } else { diff --git a/src/gui/updatewindow.h b/src/gui/updatewindow.h index 5016036d..d2d1d68f 100644 --- a/src/gui/updatewindow.h +++ b/src/gui/updatewindow.h @@ -145,6 +145,11 @@ class UpdaterWindow : public Window, public gcn::ActionListener */ std::string mCurrentFile; + /** + * The Adler32 checksum of the file currently downloading. + */ + unsigned long mCurrentChecksum; + /** * Absolute path to locally save downloaded files. */ @@ -184,12 +189,12 @@ class UpdaterWindow : public Window, public gcn::ActionListener /** * List of files to download */ - std::vector mFiles; + std::vector mLines; /** * Index of the file to be downloaded */ - unsigned int mFileIndex; + unsigned int mLineIndex; gcn::Label *mLabel; /**< Progress bar caption. */ Button *mCancelButton; /**< Button to stop the update process. */ -- cgit v1.2.3-60-g2f50