diff options
| -rw-r--r-- | logic/net/CacheDownload.cpp | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/logic/net/CacheDownload.cpp b/logic/net/CacheDownload.cpp index 8a8d00f0..0022c361 100644 --- a/logic/net/CacheDownload.cpp +++ b/logic/net/CacheDownload.cpp @@ -58,11 +58,17 @@ void CacheDownload::start() } QLOG_INFO() << "Downloading " << m_url.toString(); QNetworkRequest request(m_url); - if (m_entry->remote_changed_timestamp.size()) - request.setRawHeader(QString("If-Modified-Since").toLatin1(), - m_entry->remote_changed_timestamp.toLatin1()); - if (m_entry->etag.size()) - request.setRawHeader(QString("If-None-Match").toLatin1(), m_entry->etag.toLatin1()); + + // check file consistency first. + QFile current(m_target_path); + if(current.exists() && current.size() != 0) + { + if (m_entry->remote_changed_timestamp.size()) + request.setRawHeader(QString("If-Modified-Since").toLatin1(), + m_entry->remote_changed_timestamp.toLatin1()); + if (m_entry->etag.size()) + request.setRawHeader(QString("If-None-Match").toLatin1(), m_entry->etag.toLatin1()); + } request.setHeader(QNetworkRequest::UserAgentHeader, "MultiMC/5.0 (Cached)"); |