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#include "http_thread_qt.hpp"
#include "http_thread_callback.hpp"
#include "../platform/platform.hpp"
#include "../base/logging.hpp"
#include "../std/string.hpp"
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QSslError>
#include <QUrl>
HttpThread::HttpThread(string const & url,
downloader::IHttpThreadCallback & cb,
int64_t beg,
int64_t end,
int64_t size,
string const & pb)
: m_callback(cb), m_begRange(beg), m_endRange(end), m_downloadedBytes(0), m_expectedSize(size)
{
QUrl const qUrl(url.c_str());
QNetworkRequest request(qUrl);
// use Range header only if we don't download whole file from start
if (!(beg == 0 && end < 0))
{
if (end > 0)
{
LOG(LDEBUG, (url, "downloading range [", beg, ",", end, "]"));
QString const range = QString("bytes=") + QString::number(beg)
+ '-' + QString::number(end);
request.setRawHeader("Range", range.toUtf8());
}
else
{
LOG(LDEBUG, (url, "resuming download from position", beg));
QString const range = QString("bytes=") + QString::number(beg) + '-';
request.setRawHeader("Range", range.toUtf8());
}
}
// set user-agent with unique client id only for mapswithme requests
if (url.find("mapswithme.com") != string::npos)
{
static string const uid = GetPlatform().UniqueClientId();
request.setRawHeader("User-Agent", uid.c_str());
}
/// Use single instance for whole app
static QNetworkAccessManager netManager;
if (pb.empty())
m_reply = netManager.get(request);
else
{
request.setRawHeader("Content-Type", "application/json");
request.setRawHeader("Content-Length", QString::number(pb.size()).toLocal8Bit());
m_reply = netManager.post(request, pb.c_str());
}
connect(m_reply, SIGNAL(metaDataChanged()), this, SLOT(OnHeadersReceived()));
connect(m_reply, SIGNAL(readyRead()), this, SLOT(OnChunkDownloaded()));
connect(m_reply, SIGNAL(finished()), this, SLOT(OnDownloadFinished()));
LOG(LDEBUG, ("Connecting to", url, "[", beg, ",", end, "]", "size=", size));
}
HttpThread::~HttpThread()
{
LOG(LDEBUG, ("Destroying HttpThread"));
disconnect(m_reply, SIGNAL(metaDataChanged()), this, SLOT(OnHeadersReceived()));
disconnect(m_reply, SIGNAL(readyRead()), this, SLOT(OnChunkDownloaded()));
disconnect(m_reply, SIGNAL(finished()), this, SLOT(OnDownloadFinished()));
m_reply->deleteLater();
}
void HttpThread::OnHeadersReceived()
{
// We don't notify our callback here, because OnDownloadFinished() will always be called
// Note: after calling reply->abort() all other reply's members calls crash the app
if (m_reply->error())
return;
int const httpStatusCode = m_reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
// When we didn't ask for chunks, code should be 200
// When we asked for a chunk, code should be 206
bool const isChunk = !(m_begRange == 0 && m_endRange < 0);
if ((isChunk && httpStatusCode != 206) || (!isChunk && httpStatusCode != 200))
{
LOG(LWARNING, ("Http request to", m_reply->url().toEncoded().constData(), "aborted with HTTP code", httpStatusCode));
m_reply->abort();
}
else if (m_expectedSize > 0)
{
// try to get content length from Content-Range header first
if (m_reply->hasRawHeader("Content-Range"))
{
QList<QByteArray> const contentRange = m_reply->rawHeader("Content-Range").split('/');
int const numElements = contentRange.size();
if (numElements && contentRange.at(numElements - 1).toLongLong() != m_expectedSize)
{
LOG(LWARNING, ("Http request to", m_reply->url().toEncoded().constData(),
"aborted - invalid Content-Range:", contentRange.at(numElements - 1).toLongLong()));
m_reply->abort();
}
}
else if (m_reply->hasRawHeader("Content-Length"))
{
QByteArray const header = m_reply->rawHeader("Content-Length");
int64_t const expSize = header.toLongLong();
if (expSize != m_expectedSize)
{
LOG(LWARNING, ("Http request to", m_reply->url().toEncoded().constData(),
"aborted - invalid Content-Length:", m_reply->rawHeader("Content-Length").toLongLong()));
m_reply->abort();
}
}
else
{
LOG(LWARNING, ("Http request to", m_reply->url().toEncoded().constData(),
"aborted, server didn't send any valid file size"));
m_reply->abort();
}
}
}
void HttpThread::OnChunkDownloaded()
{
QByteArray const data = m_reply->readAll();
int const chunkSize = data.size();
m_downloadedBytes += chunkSize;
m_callback.OnWrite(m_begRange + m_downloadedBytes - chunkSize, data.constData(), chunkSize);
}
void HttpThread::OnDownloadFinished()
{
if (m_reply->error())
{
LOG(LWARNING, ("Download has finished with error:", m_reply->errorString().toUtf8().constData()));
m_callback.OnFinish(-100, m_begRange, m_endRange);
}
else
{
m_callback.OnFinish(200, m_begRange, m_endRange);
}
}
namespace downloader
{
HttpThread * CreateNativeHttpThread(string const & url,
downloader::IHttpThreadCallback & cb,
int64_t beg,
int64_t end,
int64_t size,
string const & pb)
{
return new HttpThread(url, cb, beg, end, size, pb);
}
void DeleteNativeHttpThread(HttpThread * request)
{
delete request;
}
} // namespace downloader
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