/***************************************************************************
* Copyright (C) 2006 by Ilya Kotov *
* forkotov02@hotmail.ru *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "downloader.h"
static int stop;
//curl callbacks
static size_t curl_write_data(void *data, size_t size, size_t nmemb,
void *pointer)
{
Downloader *dl = (Downloader *)pointer;
dl->mutex()->lock ();
size_t buf_start = dl->stream()->buf_fill;
size_t data_size = size * nmemb;
dl->stream()->buf_fill += data_size;
dl->stream()->buf = (char *)realloc (dl->stream()->buf, dl->stream()->buf_fill);
memcpy (dl->stream()->buf + buf_start, data, data_size);
dl->mutex()->unlock();
return data_size;
}
static size_t curl_header(void *data, size_t size, size_t nmemb,
void *pointer)
{
Downloader *dl = (Downloader *)pointer;
dl->mutex()->lock ();
size_t data_size = size * nmemb;
if (data_size < 2)
return data_size;
//qDebug("header received: %s", (char*) data);
QString str = QString::fromAscii((char *) data, data_size);
str = str.trimmed ();
if (str.contains("Content-Type"))
{
str = str.right(str.size() - str.indexOf(":") - 1);
qDebug(qPrintable(QString("content-type: ")+str.trimmed()));
dl->stream()->content_type = str.trimmed();
}
if (str.contains("content-type"))
{
str = str.right(str.size() - str.indexOf(":") - 1);
qDebug(qPrintable(QString("content-type: ")+str.trimmed()));
dl->stream()->content_type = str.trimmed();
}
dl->mutex()->unlock();
return size * nmemb;
}
int curl_progress(void *pointer, double dltotal, double dlnow, double ultotal, double ulnow)
{
Downloader *dl = (Downloader *)pointer;
dl->mutex()->lock ();
bool aborted = dl->stream()->aborted;
dl->mutex()->unlock();
if (aborted)
return -1;
return 0;
}
Downloader::Downloader(QObject *parent, const QString &url)
: QThread(parent)
{
m_url = url;
curl_global_init(CURL_GLOBAL_ALL);
m_stream.buf_fill = 0;
m_stream.buf = 0;
m_stream.aborted = TRUE;
}
Downloader::~Downloader()
{
abort();
}
qint64 Downloader::read(char* data, qint64 maxlen)
{
m_mutex.lock();
if (m_stream.buf_fill>0 && !m_stream.aborted)
{
int len = qMin<qint64>(m_stream.buf_fill, maxlen);
memcpy(data, m_stream.buf, len);
m_stream.buf_fill -= len;
memmove(m_stream.buf, m_stream.buf + len, m_stream.buf_fill);
m_mutex.unlock();
return len;
}
m_mutex.unlock();
return 0;
}
Stream *Downloader::stream()
{
return &m_stream;
}
QMutex *Downloader::mutex()
{
return &m_mutex;
}
QString Downloader::contentType()
{
return m_stream.content_type;
}
void Downloader::abort()
{
m_mutex.lock();
if (m_stream.aborted)
{
m_mutex.unlock();
return;
}
m_stream.aborted = TRUE;
m_mutex.unlock();
wait();
curl_easy_cleanup(m_handle);
}
int Downloader::bytesAvailable()
{
m_mutex.lock();
int b = m_stream.buf_fill;
m_mutex.unlock();
return b;
}
void Downloader::run()
{
qDebug("Downloader: starting download thread");
m_handle = curl_easy_init();
// Set url to download
curl_easy_setopt(m_handle, CURLOPT_URL, m_url.toAscii().constData());
//qDebug("Downloader: url: %s", qPrintable(url));
// callback for wrting
curl_easy_setopt(m_handle, CURLOPT_WRITEFUNCTION, curl_write_data);
// Set destination file
curl_easy_setopt(m_handle, CURLOPT_WRITEDATA, this);
curl_easy_setopt(m_handle, CURLOPT_HEADERDATA, this);
curl_easy_setopt(m_handle, CURLOPT_HEADERFUNCTION, curl_header);
// Some SSL mambo jambo
curl_easy_setopt(m_handle, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_easy_setopt(m_handle, CURLOPT_SSL_VERIFYHOST, 0);
// Disable progress meter
curl_easy_setopt(m_handle, CURLOPT_NOPROGRESS, 0);
curl_easy_setopt(m_handle, CURLOPT_PROGRESSDATA, this);
curl_easy_setopt(m_handle, CURLOPT_PROGRESSFUNCTION, curl_progress);
// Any kind of authentication
curl_easy_setopt(m_handle, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
//curl_easy_setopt(m_handle, CURLOPT_VERBOSE, 1);
// Auto referrer
curl_easy_setopt(m_handle, CURLOPT_AUTOREFERER, 1);
// Follow redirections
curl_easy_setopt(m_handle, CURLOPT_FOLLOWLOCATION, 1);
// user agent
curl_easy_setopt(m_handle, CURLOPT_USERAGENT, "qmmp/0.2");
curl_easy_setopt(m_handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
struct curl_slist *http200_aliases = curl_slist_append(NULL, "ICY");
struct curl_slist *http_headers = curl_slist_append(NULL, "Icy-MetaData: 1");
curl_easy_setopt(m_handle, CURLOPT_HTTP200ALIASES, http200_aliases);
curl_easy_setopt(m_handle, CURLOPT_HTTPHEADER, http_headers);
m_mutex.lock();
m_stream.buf_fill = 0;
m_stream.buf = 0;
m_stream.aborted = FALSE;
int return_code, response;
qDebug("Downloader: starting libcurl");
m_mutex.unlock();
return_code = curl_easy_perform(m_handle);
//qDebug("curl_easy_perform %d", return_code);
m_mutex.lock();
m_stream.aborted = TRUE;
m_stream.buf_fill = 0;
if (m_stream.buf)
delete m_stream.buf;
m_stream.buf = 0;
m_mutex.unlock();
qDebug("Downloader: thread exited");
}
