HttpThread::HttpThread(std::string const & url,
downloader::IHttpThreadCallback & callback,
int64_t beg,
int64_t end,
int64_t size,
string const & pb)
: m_callback(callback),
m_begRange(beg), m_endRange(end),
m_downloadedBytes(0), m_expectedSize(size),
m_url(url), m_pb(pb),
m_pSession(0),
m_pTransaction(0)
{
result r = E_SUCCESS;
String * pProxyAddr = 0;
String hostAddr(m_url.c_str());
HttpHeader * header = 0;
LOG(LDEBUG, ("Creating HttpSession", m_url));
m_pSession = new HttpSession();
r = m_pSession->Construct(NET_HTTP_SESSION_MODE_NORMAL, pProxyAddr, hostAddr, header);
if (r != E_SUCCESS)
{
LOG(LERROR, ("HttpSession Construction error:", r));
return;
}
// Open a new HttpTransaction.
m_pTransaction = m_pSession->OpenTransactionN();
if ((r = GetLastResult()) != E_SUCCESS)
{
LOG(LERROR, ("OpenTransactionN", GetLastResult()));
return;
}
m_pTransaction->AddHttpTransactionListener(*this);
m_pTransaction->SetHttpProgressListener(*this);
HttpRequest * pRequest = m_pTransaction->GetRequest();
pRequest->SetUri(m_url.c_str());
HttpHeader * pHeader = pRequest->GetHeader();
// use Range header only if we don't download whole file from start
if (!(m_begRange == 0 && m_endRange < 0))
{
if (m_endRange > 0)
{
LOG(LDEBUG, (m_url, "downloading range [", m_begRange, ",", m_endRange, "]"));
String range("bytes=");
range.Append(m_begRange);
range.Append('-');
range.Append(m_endRange);
pHeader->AddField(L"Range", range);
}
else
{
LOG(LDEBUG, (m_url, "resuming download from position", m_begRange));
String range("bytes=");
range.Append(m_begRange);
range.Append('-');
pHeader->AddField("Range", range);
}
}
// set user-agent with unique client id only for mapswithme requests
if (m_url.find("mapswithme.com") != string::npos)
{
static string const uid = GetPlatform().UniqueClientId();
pHeader->AddField("User-Agent", uid.c_str());
}
if (m_pb.empty())
{
pRequest->SetMethod(NET_HTTP_METHOD_GET);
}
else
{
pRequest->SetMethod(NET_HTTP_METHOD_POST);
pHeader->AddField("Content-Type", "application/json");
int64_t const sz = m_pb.size();
String length;
length.Append(sz);
pHeader->AddField("Content-Length", length);
ByteBuffer body;
body.Construct((const byte *)m_pb.c_str(), 0, sz, sz);
pRequest->WriteBody(body);
}
LOG(LDEBUG, ("Connecting to", m_url, "[", m_begRange, ",", m_endRange, "]", "size=", m_expectedSize));
m_pTransaction->Submit();
}
