diff options
Diffstat (limited to 'src/cryptonote_core')
| -rw-r--r-- | src/cryptonote_core/cryptonote_core.cpp | 40 |
1 files changed, 35 insertions, 5 deletions
diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp index 5cfa4b3e9..a00b02e8e 100644 --- a/src/cryptonote_core/cryptonote_core.cpp +++ b/src/cryptonote_core/cryptonote_core.cpp @@ -44,6 +44,7 @@ using namespace epee; #include "cryptonote_config.h" #include "cryptonote_tx_utils.h" #include "misc_language.h" +#include "file_io_utils.h" #include <csignal> #include <p2p/net_node.h> #include "checkpoints/checkpoints.h" @@ -1443,27 +1444,56 @@ namespace cryptonote if (!tools::sha256sum(path.string(), file_hash) || (hash != epee::string_tools::pod_to_hex(file_hash))) { MCDEBUG("updates", "We don't have that file already, downloading"); + const std::string tmppath = path.string() + ".tmp"; + if (epee::file_io_utils::is_file_exist(tmppath)) + { + MCDEBUG("updates", "We have part of the file already, resuming download"); + } m_last_update_length = 0; - m_update_download = tools::download_async(path.string(), url, [this, hash](const std::string &path, const std::string &uri, bool success) { + m_update_download = tools::download_async(tmppath, url, [this, hash, path](const std::string &tmppath, const std::string &uri, bool success) { + bool remove = false, good = true; if (success) { crypto::hash file_hash; - if (!tools::sha256sum(path, file_hash)) + if (!tools::sha256sum(tmppath, file_hash)) { - MCERROR("updates", "Failed to hash " << path); + MCERROR("updates", "Failed to hash " << tmppath); + remove = true; + good = false; } - if (hash != epee::string_tools::pod_to_hex(file_hash)) + else if (hash != epee::string_tools::pod_to_hex(file_hash)) { MCERROR("updates", "Download from " << uri << " does not match the expected hash"); + remove = true; + good = false; } - MCLOG_CYAN(el::Level::Info, "updates", "New version downloaded to " << path); } else { MCERROR("updates", "Failed to download " << uri); + good = false; } boost::unique_lock<boost::mutex> lock(m_update_mutex); m_update_download = 0; + if (success && !remove) + { + std::error_code e = tools::replace_file(tmppath, path.string()); + if (e) + { + MCERROR("updates", "Failed to rename downloaded file"); + good = false; + } + } + else if (remove) + { + if (!boost::filesystem::remove(tmppath)) + { + MCERROR("updates", "Failed to remove invalid downloaded file"); + good = false; + } + } + if (good) + MCLOG_CYAN(el::Level::Info, "updates", "New version downloaded to " << path.string()); }, [this](const std::string &path, const std::string &uri, size_t length, ssize_t content_length) { if (length >= m_last_update_length + 1024 * 1024 * 10) { |