/
mythdownloadmanager.cpp
1081 lines (920 loc) · 34.7 KB
/
mythdownloadmanager.cpp
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// qt
#include <QCoreApplication>
#include <QString>
#include <QByteArray>
#include <QFile>
#include <QDir>
#include <QThreadPool>
// libmythdb
#include "stdlib.h"
#include "compat.h"
#include "mythcorecontext.h"
#include "mythcoreutil.h"
#include "mythdirs.h"
#include "mythevent.h"
#include "mythverbose.h"
#include "mythversion.h"
#include "remotefile.h"
#include "mythdownloadmanager.h"
using namespace std;
#define LOC QString("DownloadManager: ")
#define LOC_WARN QString("DownloadManager, Warning: ")
#define LOC_ERR QString("DownloadManager, Error: ")
MythDownloadManager *downloadManager = NULL;
/*!
* \class MythDownloadInfo
*/
class MythDownloadInfo
{
public:
MythDownloadInfo() :
m_request(NULL), m_reply(NULL), m_data(NULL),
m_caller(NULL), m_post(false), m_reload(false),
m_preferCache(false), m_syncMode(false), m_processReply(true),
m_done(false), m_bytesReceived(0), m_bytesTotal(0),
m_lastStat(QDateTime::currentDateTime()),
m_errorCode(QNetworkReply::NoError)
{
}
~MythDownloadInfo()
{
if (m_request)
delete m_request;
if (m_reply && m_processReply)
m_reply->deleteLater();
}
void detach(void)
{
m_url.detach();
m_outFile.detach();
}
QString m_url;
QUrl m_redirectedTo;
QNetworkRequest *m_request;
QNetworkReply *m_reply;
QString m_outFile;
QByteArray *m_data;
QByteArray m_privData;
QObject *m_caller;
bool m_post;
bool m_reload;
bool m_preferCache;
bool m_syncMode;
bool m_processReply;
bool m_done;
qint64 m_bytesReceived;
qint64 m_bytesTotal;
QDateTime m_lastStat;
QNetworkReply::NetworkError m_errorCode;
};
/*!
* \class RemoteFileDownloadThread
*/
class RemoteFileDownloadThread : public QRunnable
{
public:
RemoteFileDownloadThread(MythDownloadManager *parent,
MythDownloadInfo *dlInfo) :
m_parent(parent),
m_dlInfo(dlInfo)
{
m_dlInfo->detach();
}
void run()
{
bool ok = false;
RemoteFile *rf = new RemoteFile(m_dlInfo->m_url, false, false, 0);
ok = rf->SaveAs(m_dlInfo->m_privData);
delete rf;
if (!ok)
m_dlInfo->m_errorCode = QNetworkReply::UnknownNetworkError;
m_parent->downloadFinished(m_dlInfo);
}
private:
MythDownloadManager *m_parent;
MythDownloadInfo *m_dlInfo;
};
/** \fn ShutdownMythDownloadManager(void)
* \brief Deletes the running MythDownloadManager at program exit.
*/
static void ShutdownMythDownloadManager(void)
{
if (downloadManager)
{
delete downloadManager;
downloadManager = NULL;
}
}
/** \fn GetMythDownloadManger(void)
* \brief Gets the pointer to the MythDownloadManager singleton.
* \return Pointer to the MythDownloadManager instance
*/
MythDownloadManager *GetMythDownloadManager(void)
{
if (!downloadManager)
{
downloadManager = new MythDownloadManager();
downloadManager->start();
while (!downloadManager->getQueueThread())
usleep(10000);
downloadManager->moveToThread(downloadManager->getQueueThread());
downloadManager->setRunThread();
while (!downloadManager->isRunning())
usleep(10000);
atexit(ShutdownMythDownloadManager);
}
return downloadManager;
}
/** \fn MythDownloadManager::MythDownloadManager()
* \brief Constructor for MythDownloadManager. Instantiates a
* QNetworkAccessManager and QNetworkDiskCache.
*/
MythDownloadManager::MythDownloadManager() :
m_manager(NULL),
m_diskCache(NULL),
m_infoLock(new QMutex(QMutex::Recursive)),
m_queueThread(NULL),
m_runThread(false),
m_isRunning(false)
{
}
/** \fn MythDownloadManager::~MythDownloadManager()
* \brief Destructor for MythDownloadManager.
*/
MythDownloadManager::~MythDownloadManager()
{
m_runThread = false;
m_queueWaitCond.wakeAll();
wait();
delete m_infoLock;
}
/** \fn MythDownloadManager::run(void)
* \brief Runs a loop to process incoming download requests and
* triggers download events to be processed.
*/
void MythDownloadManager::run(void)
{
bool downloading = false;
bool itemsInQueue = false;
bool waitAnyway = false;
m_queueThread = currentThread();
while (!m_runThread)
usleep(50000);
m_manager = new QNetworkAccessManager(this);
m_diskCache = new QNetworkDiskCache(this);
m_diskCache->setCacheDirectory(GetConfDir() + "/Cache-" +
gCoreContext->GetAppName() + "-" +
gCoreContext->GetHostName());
m_manager->setCache(m_diskCache);
QObject::connect(m_manager, SIGNAL(finished(QNetworkReply*)), this,
SLOT(downloadFinished(QNetworkReply*)));
m_isRunning = true;
while (m_runThread)
{
m_infoLock->lock();
downloading = !m_downloadInfos.isEmpty();
itemsInQueue = !m_downloadQueue.isEmpty();
m_infoLock->unlock();
if (downloading)
QCoreApplication::processEvents();
if (!itemsInQueue || waitAnyway)
{
waitAnyway = false;
m_queueWaitLock.lock();
if (downloading)
m_queueWaitCond.wait(&m_queueWaitLock, 200);
else
m_queueWaitCond.wait(&m_queueWaitLock);
m_queueWaitLock.unlock();
}
m_infoLock->lock();
if (!m_downloadQueue.isEmpty())
{
MythDownloadInfo *dlInfo = m_downloadQueue.front();
QUrl qurl(dlInfo->m_url);
m_downloadQueue.pop_front();
if (m_downloadInfos.contains(qurl.toString()))
{
// Push request to the end of the queue to let others process.
// If this is the only item in the queue, force the loop to
// wait a little.
if (m_downloadQueue.isEmpty())
waitAnyway = true;
m_downloadQueue.push_back(dlInfo);
m_infoLock->unlock();
continue;
}
if (dlInfo->m_url.startsWith("myth://"))
downloadRemoteFile(dlInfo);
else
downloadQNetworkRequest(dlInfo);
m_downloadInfos[qurl.toString()] = dlInfo;
}
m_infoLock->unlock();
}
m_isRunning = false;
}
/** \fn MythDownloadManager::queueItem(const QString &url, QNetworkRequest *req,
const QString &dest, QByteArray *data,
QObject *caller, const bool post,
const bool reload)
* \brief Adds a request to the download queue.
* \param url URI to download.
* \param req QNetworkRequest to queue
* \param dest Destination filename.
* \param data Location of data for request
* \param caller QObject to receive event notifications.
* \param post Issue a POST request instead of a GET
* \param reload Force reloading of the URL
*/
void MythDownloadManager::queueItem(const QString &url, QNetworkRequest *req,
const QString &dest, QByteArray *data,
QObject *caller, const bool post,
const bool reload)
{
MythDownloadInfo *dlInfo = new MythDownloadInfo;
dlInfo->m_url = url;
dlInfo->m_request = req;
dlInfo->m_outFile = dest;
dlInfo->m_data = data;
dlInfo->m_caller = caller;
dlInfo->m_post = post;
dlInfo->m_reload = reload;
dlInfo->detach();
QMutexLocker locker(m_infoLock);
m_downloadQueue.push_back(dlInfo);
m_queueWaitCond.wakeAll();
}
/** \fn MythDownloadManager::processItem(const QString &url,
QNetworkRequest *req,
const QString &dest, QByteArray *data,
const bool post, const bool reload)
* \brief Processes a network request immediately and waits for a response.
* \param url URI to download.
* \param req QNetworkRequest to queue
* \param dest Destination filename.
* \param data Location of data for request
* \param post Issue a POST request instead of a GET
* \param reload Force reloading of the URL
*/
bool MythDownloadManager::processItem(const QString &url, QNetworkRequest *req,
const QString &dest, QByteArray *data,
const bool post, const bool reload)
{
MythDownloadInfo *dlInfo = new MythDownloadInfo;
dlInfo->m_url = url;
dlInfo->m_request = req;
dlInfo->m_outFile = dest;
dlInfo->m_data = data;
dlInfo->m_post = post;
dlInfo->m_reload = reload;
dlInfo->m_syncMode = true;
return downloadNow(dlInfo);
}
/** \fn MythDownloadManager::preCache(const QString &url)
* \brief Downloads a URL but doesn't store the resulting data anywhere
* \param url URI to download.
*/
void MythDownloadManager::preCache(const QString &url)
{
VERBOSE(VB_FILE+VB_EXTRA, LOC + QString("preCache('%1')").arg(url));
queueItem(url, NULL, QString(), NULL, NULL);
}
/** \fn MythDownloadManager::queueDownload(const QString &url,
const QString &dest,
QObject *caller,
const bool reload)
* \brief Adds a url to the download queue.
* \param url URI to download.
* \param dest Destination filename.
* \param caller QObject to receive event notifications.
* \param reload Whether to force reloading of the URL or not
*/
void MythDownloadManager::queueDownload(const QString &url,
const QString &dest,
QObject *caller,
const bool reload)
{
VERBOSE(VB_FILE+VB_EXTRA, LOC + QString("queueDownload('%1', '%2', %3)")
.arg(url).arg(dest).arg((long long)caller));
queueItem(url, NULL, dest, NULL, caller, false, reload);
}
/** \fn MythDownloadManager::queueDownload(QNetworkRequest &request,
QByteArray *data,
QObject *caller)
* \brief Downloads a QNetworkRequest via the QNetworkAccessManager
* \param req Network request to GET
* data Location to store download data
* caller QObject of caller for event notification
*/
void MythDownloadManager::queueDownload(QNetworkRequest *req,
QByteArray *data,
QObject *caller)
{
VERBOSE(VB_FILE+VB_EXTRA, LOC + QString("queueDownload('%1', '%2', %3)")
.arg(req->url().toString()).arg((long long)data).arg((long long)caller));
queueItem(req->url().toString(), req, QString(), data, caller);
}
/** \fn MythDownloadManager::download(const QString &url,
const QString &dest,
const bool reload)
* \brief Downloads a URL to a file in blocking mode.
* \param url URI to download.
* \param dest Destination filename.
* \param reload Whether to force reloading of the URL or not
* \return true if download was successful, false otherwise.
*/
bool MythDownloadManager::download(const QString &url, const QString &dest,
const bool reload)
{
return processItem(url, NULL, dest, NULL, false, reload);
}
/** \fn MythDownloadManager::download(const QString &url,
const QByteArray *data,
const bool reload)
* \brief Downloads a URI to a QByteArray in blocking mode.
* \param url URI to download.
* \param data Pointer to destination QByteArray.
* \param reload Whether to force reloading of the URL or not
* \return true if download was successful, false otherwise.
*/
bool MythDownloadManager::download(const QString &url, QByteArray *data,
const bool reload)
{
return processItem(url, NULL, QString(), data, false, reload);
}
/** \fn MythDownloadManager::download(const QString &url,
const bool reload)
* \brief Downloads a URI to a QByteArray in blocking mode.
* \param url URI to download.
* \param reload Whether to force reloading of the URL or not
* \return true if download was successful, false otherwise.
*/
QNetworkReply *MythDownloadManager::download(const QString &url,
const bool reload)
{
MythDownloadInfo *dlInfo = new MythDownloadInfo;
dlInfo->m_url = url;
dlInfo->m_reload = reload;
dlInfo->m_syncMode = true;
dlInfo->m_processReply = false;
bool ok = downloadNow(dlInfo, false);
QNetworkReply *reply = dlInfo->m_reply;
if (reply)
dlInfo->m_reply = NULL;
delete dlInfo;
if (ok && reply)
return reply;
return NULL;
}
/** \fn MythDownloadManager::download(QNetworkRequest &req, QByteArray *data)
* \brief Downloads a QNetworkRequest via the QNetworkAccessManager
* \param req Information on the network request
* data Location to store download data
* \return true if download was successful, false otherwise.
*/
bool MythDownloadManager::download(QNetworkRequest *req, QByteArray *data)
{
VERBOSE(VB_FILE+VB_EXTRA, LOC + QString("download('%1', '%2')")
.arg(req->url().toString()).arg((long long)data));
return processItem(req->url().toString(), req, QString(), data);
}
/** \fn MythDownloadManager::queuePost(const QString &url,
QByteArray *data,
QObject *caller)
* \brief Queues a post to a URL via the QNetworkAccessManager
* \param url URL to post to
* data Location holding post and response data
* caller QObject of caller for event notification
*/
void MythDownloadManager::queuePost(const QString &url,
QByteArray *data,
QObject *caller)
{
VERBOSE(VB_FILE+VB_EXTRA, LOC + QString("queuePost('%1', '%2')")
.arg(url).arg((long long)data));
if (!data)
{
VERBOSE(VB_IMPORTANT, LOC_ERR + "queuePost(), data is NULL!");
return;
}
queueItem(url, NULL, QString(), data, caller, true);
}
/** \fn MythDownloadManager::queuePost(QNetworkRequest *req,
QByteArray *data,
QObject *caller)
* \brief Queues a post to a URL via the QNetworkAccessManager
* \param req QNetworkRequest to post
* data Location holding post and response data
* caller QObject of caller for event notification
*/
void MythDownloadManager::queuePost(QNetworkRequest *req,
QByteArray *data,
QObject *caller)
{
VERBOSE(VB_FILE+VB_EXTRA, LOC + QString("queuePost('%1', '%2')")
.arg(req->url().toString()).arg((long long)data));
if (!data)
{
VERBOSE(VB_IMPORTANT, LOC_ERR + "queuePost(), data is NULL!");
return;
}
queueItem(req->url().toString(), req, QString(), data, caller, true);
}
/** \fn MythDownloadManager::post(const QString &url, QByteArray *data)
* \brief Posts data to a url via the QNetworkAccessManager
* \param url URL to post to
* data Location holding post and response data
* \return true if post was successful, false otherwise.
*/
bool MythDownloadManager::post(const QString &url, QByteArray *data)
{
VERBOSE(VB_FILE+VB_EXTRA, LOC + QString("post('%1', '%2')")
.arg(url).arg((long long)data));
if (!data)
{
VERBOSE(VB_IMPORTANT, LOC_ERR + "post(), data is NULL!");
return false;
}
return processItem(url, NULL, QString(), data, true);
}
/** \fn MythDownloadManager::post(QNetworkRequest *req, QByteArray *data)
* \brief Posts a QNetworkRequest via the QNetworkAccessManager
* \param req Information on the network request
* data Location holding post and response data
* \return true if post was successful, false otherwise.
*/
bool MythDownloadManager::post(QNetworkRequest *req, QByteArray *data)
{
VERBOSE(VB_FILE+VB_EXTRA, LOC + QString("post('%1', '%2')")
.arg(req->url().toString()).arg((long long)data));
if (!data)
{
VERBOSE(VB_IMPORTANT, LOC_ERR + "post(), data is NULL!");
return false;
}
return processItem(req->url().toString(), req, QString(), data, true);
}
/** \fn MythDownloadManager::downloadRemoteFile(MythDownloadInfo *dlInfo)
* \brief Triggers a myth:// URI download in the background via RemoteFile
* \param dlInfo MythDownloadInfo information for download
*/
void MythDownloadManager::downloadRemoteFile(MythDownloadInfo *dlInfo)
{
RemoteFileDownloadThread *dlThread =
new RemoteFileDownloadThread(this, dlInfo);
QThreadPool::globalInstance()->start(dlThread);
}
/** \fn MythDownloadManager::downloadQNetworkRequest(MythDownloadInfo *dlInfo)
* \brief Downloads a QNetworkRequest via the QNetworkAccessManager
* \param dlInfo MythDownloadInfo information for download
*/
void MythDownloadManager::downloadQNetworkRequest(MythDownloadInfo *dlInfo)
{
static const char dateFormat[] = "ddd, dd MMM yyyy hh:mm:ss 'GMT'";
QUrl qurl(dlInfo->m_url);
QNetworkRequest request;
if (dlInfo->m_request)
{
request = *dlInfo->m_request;
delete dlInfo->m_request;
dlInfo->m_request = NULL;
}
else
request.setUrl(qurl);
if (!dlInfo->m_reload)
{
// Prefer the in-cache item if one exists and it is less than 60
// seconds old and has not expired in the last 10 seconds.
QDateTime now = QDateTime::currentDateTime();
QNetworkCacheMetaData urlData = m_manager->cache()->metaData(qurl);
if ((urlData.isValid()) &&
((!urlData.expirationDate().isValid()) ||
(urlData.expirationDate().secsTo(now) < 10)))
{
QNetworkCacheMetaData::RawHeaderList headers =
urlData.rawHeaders();
bool found = false;
QNetworkCacheMetaData::RawHeaderList::iterator it
= headers.begin();
for (; !found && it != headers.end(); ++it)
{
if ((*it).first == "Date")
{
found = true;
QDateTime loadDate =
QDateTime::fromString((*it).second, dateFormat);
loadDate.setTimeSpec(Qt::UTC);
if (loadDate.secsTo(now) < 60)
dlInfo->m_preferCache = true;
}
}
}
}
if (dlInfo->m_preferCache)
request.setAttribute(QNetworkRequest::CacheLoadControlAttribute,
QNetworkRequest::PreferCache);
request.setRawHeader("User-Agent",
"MythDownloadManager v" MYTH_BINARY_VERSION);
if (dlInfo->m_post)
dlInfo->m_reply = m_manager->post(request, *dlInfo->m_data);
else
dlInfo->m_reply = m_manager->get(request);
m_downloadReplies[dlInfo->m_reply] = dlInfo;
connect(dlInfo->m_reply, SIGNAL(error(QNetworkReply::NetworkError)), this,
SLOT(downloadError(QNetworkReply::NetworkError)));
connect(dlInfo->m_reply, SIGNAL(downloadProgress(qint64, qint64)),
this, SLOT(downloadProgress(qint64, qint64)));
}
/** \fn MythDownloadManager::downloadNow(MythDownloadInfo *dlInfo,
bool deleteInfo)
* \brief Download helper for download() blocking methods.
* \param dlInfo Information on URI to download.
* \param deleteInfo Flag to indicate whether to delete the provided
* MythDownloadInfo instance when done.
* \return true if download was successful, false otherwise.
*/
bool MythDownloadManager::downloadNow(MythDownloadInfo *dlInfo, bool deleteInfo)
{
dlInfo->m_syncMode = true;
m_infoLock->lock();
m_downloadQueue.push_back(dlInfo);
m_infoLock->unlock();
m_queueWaitCond.wakeAll();
// timeout myth:// RemoteFile transfers 20 seconds from now
// timeout non-myth:// QNetworkAccessManager transfers 10 seconds after
// their last progress update
QDateTime startedAt = QDateTime::currentDateTime();
m_infoLock->lock();
while ((!dlInfo->m_done) &&
(((!dlInfo->m_url.startsWith("myth://")) &&
(dlInfo->m_lastStat.secsTo(QDateTime::currentDateTime()) < 10)) ||
((dlInfo->m_url.startsWith("myth://")) &&
(startedAt.secsTo(QDateTime::currentDateTime()) < 20))))
{
m_infoLock->unlock();
m_queueWaitLock.lock();
m_queueWaitCond.wait(&m_queueWaitLock, 200);
m_queueWaitLock.unlock();
m_infoLock->lock();
}
bool success =
dlInfo->m_done && (dlInfo->m_errorCode == QNetworkReply::NoError);
if (!dlInfo->m_done)
{
dlInfo->m_syncMode = false; // Let downloadFinished() cleanup for us
if (dlInfo->m_reply)
dlInfo->m_reply->abort();
}
else if (deleteInfo)
delete dlInfo;
m_infoLock->unlock();
return success;
}
/** \fn MythDownloadManager::removeListener(QObject *caller)
* \brief Disconnects the specify caller from any existing
* MythDownloadInfo instances.
* \param caller QObject listener to remove
*/
void MythDownloadManager::removeListener(QObject *caller)
{
QMutexLocker locker(m_infoLock);
MythDownloadInfo *dlInfo;
QList <MythDownloadInfo*>::iterator lit = m_downloadQueue.begin();
for (; lit != m_downloadQueue.end(); ++lit)
{
dlInfo = *lit;
if (dlInfo->m_caller == caller)
dlInfo->m_caller = NULL;
}
QMap <QString, MythDownloadInfo*>::iterator mit = m_downloadInfos.begin();
for (; mit != m_downloadInfos.end(); ++mit)
{
dlInfo = mit.value();
if (dlInfo->m_caller == caller)
dlInfo->m_caller = NULL;
}
}
/** \fn MythDownloadManager::downloadError(QNetworkReply::NetworkError errorCode)
* \brief Slot to process download error events.
* \param errorCode error code
*/
void MythDownloadManager::downloadError(QNetworkReply::NetworkError errorCode)
{
QNetworkReply *reply = (QNetworkReply*)sender();
VERBOSE(VB_FILE+VB_EXTRA, LOC +
QString("downloadError(%1) (for reply %2)")
.arg(errorCode).arg((long long)reply));
QMutexLocker locker(m_infoLock);
if (!m_downloadReplies.contains(reply))
{
reply->deleteLater();
return;
}
MythDownloadInfo *dlInfo = m_downloadReplies[reply];
if (!dlInfo)
return;
dlInfo->m_errorCode = errorCode;
}
/** \fn MythDownloadManager::redirectUrl(const QUrl& possibleRedirectUrl,
const QUrl& oldRedirectUrl)
* \brief Checks whether we were redirected to the given URL.
* \param possibleRedirectUrl Possible Redirect URL
* \param oldRedirectUrl Old Redirect URL
* \return empty QUrl if we were not redirected, otherwise the redirected URL
*/
QUrl MythDownloadManager::redirectUrl(const QUrl& possibleRedirectUrl,
const QUrl& oldRedirectUrl) const
{
VERBOSE(VB_FILE+VB_EXTRA, LOC + QString("redirectUrl()"));
QUrl redirectUrl;
if(!possibleRedirectUrl.isEmpty() && possibleRedirectUrl != oldRedirectUrl)
redirectUrl = possibleRedirectUrl;
return redirectUrl;
}
/** \fn MythDownloadManager::downloadFinished(QNetworkReply* reply)
* \brief Slot to process download finished events.
* \param reply QNetworkReply for completed download.
*/
void MythDownloadManager::downloadFinished(QNetworkReply* reply)
{
VERBOSE(VB_FILE+VB_EXTRA, LOC + QString("downloadFinished(%1)")
.arg((long long)reply));
QMutexLocker locker(m_infoLock);
if (!m_downloadReplies.contains(reply))
{
reply->deleteLater();
return;
}
MythDownloadInfo *dlInfo = m_downloadReplies[reply];
if (!dlInfo || !dlInfo->m_reply)
return;
downloadFinished(dlInfo);
}
/** \fn MythDownloadManager::downloadFinished(MythDownloadInfo* dlInfo)
* \brief Callback to process download finished events.
* \param dlInfo MythDownloadInfo for completed download.
*/
void MythDownloadManager::downloadFinished(MythDownloadInfo *dlInfo)
{
QNetworkReply *reply = dlInfo->m_reply;
if (reply)
{
QUrl possibleRedirectUrl =
reply->attribute(QNetworkRequest::RedirectionTargetAttribute).toUrl();
dlInfo->m_redirectedTo =
redirectUrl(possibleRedirectUrl, dlInfo->m_redirectedTo);
}
if(!dlInfo->m_redirectedTo.isEmpty())
{
VERBOSE(VB_FILE+VB_EXTRA, LOC +
QString("downloadFinished(%1): Redirect: %2 -> %3")
.arg((long long)dlInfo)
.arg(reply->url().toString())
.arg(dlInfo->m_redirectedTo.toString()));
QNetworkRequest request(dlInfo->m_redirectedTo);
if (dlInfo->m_preferCache)
request.setAttribute(QNetworkRequest::CacheLoadControlAttribute,
QNetworkRequest::PreferCache);
request.setRawHeader("User-Agent",
"MythDownloadManager v" MYTH_BINARY_VERSION);
if (dlInfo->m_post)
dlInfo->m_reply = m_manager->post(request, *dlInfo->m_data);
else
dlInfo->m_reply = m_manager->get(request);
m_downloadReplies[dlInfo->m_reply] = dlInfo;
connect(dlInfo->m_reply, SIGNAL(error(QNetworkReply::NetworkError)), this,
SLOT(downloadError(QNetworkReply::NetworkError)));
connect(dlInfo->m_reply, SIGNAL(downloadProgress(qint64, qint64)),
this, SLOT(downloadProgress(qint64, qint64)));
m_downloadReplies.remove(reply);
reply->deleteLater();
}
else
{
VERBOSE(VB_FILE+VB_EXTRA, QString("downloadFinished(%1): COMPLETE: %2")
.arg((long long)dlInfo).arg(dlInfo->m_url));
dlInfo->m_redirectedTo.clear();
int dataSize = -1;
// If we downloaded via the QNetworkAccessManager
// AND the caller isn't handling the reply directly
if (reply && dlInfo->m_processReply)
{
bool append = (!dlInfo->m_syncMode && dlInfo->m_caller);
QByteArray data = reply->readAll();
dataSize = data.size();
if (append)
dlInfo->m_bytesReceived += dataSize;
else
dlInfo->m_bytesReceived = dataSize;
dlInfo->m_bytesTotal = dlInfo->m_bytesReceived;
if (dlInfo->m_data)
{
if (append)
dlInfo->m_data->append(data);
else
*dlInfo->m_data = data;
}
else if (!dlInfo->m_outFile.isEmpty())
{
saveFile(dlInfo->m_outFile, data, append);
}
}
else if (!reply) // If we downloaded via RemoteFile
{
if (dlInfo->m_data)
{
(*dlInfo->m_data) = dlInfo->m_privData;
}
else if (!dlInfo->m_outFile.isEmpty())
{
saveFile(dlInfo->m_outFile, dlInfo->m_privData);
}
dlInfo->m_bytesReceived += dataSize;
dlInfo->m_bytesTotal = dlInfo->m_bytesReceived;
}
// else we downloaded via QNetworkAccessManager
// AND the caller is handling the reply
m_downloadInfos.remove(dlInfo->m_url);
if (reply)
m_downloadReplies.remove(reply);
dlInfo->m_done = true;
if (!dlInfo->m_syncMode)
{
if (dlInfo->m_caller)
{
VERBOSE(VB_FILE+VB_EXTRA, QString("downloadFinished(%1): "
"COMPLETE: %2, sending event to caller")
.arg((long long)dlInfo).arg(dlInfo->m_url));
QStringList args;
args << dlInfo->m_url;
args << dlInfo->m_outFile;
args << QString::number(dlInfo->m_bytesTotal);
args << QString(); // placeholder for error string
args << QString::number((int)dlInfo->m_errorCode);
QCoreApplication::postEvent(dlInfo->m_caller,
new MythEvent("DOWNLOAD_FILE FINISHED", args));
}
delete dlInfo;
}
m_queueWaitCond.wakeAll();
}
}
/** \fn MythDownloadManager::downloadProgress(qint64 bytesReceived,
qint64 bytesTotal)
* \brief Slot to process download update events.
* \param bytesReceived Bytes received so far
* \param bytesTotal Bytes total for the download, -1 if the total is unknown
*/
void MythDownloadManager::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
{
QNetworkReply *reply = (QNetworkReply*)sender();
VERBOSE(VB_FILE+VB_EXTRA, LOC +
QString("downloadProgress(%1, %2) (for reply %3)")
.arg(bytesReceived).arg(bytesTotal).arg((long long)reply));
QMutexLocker locker(m_infoLock);
if (!m_downloadReplies.contains(reply))
return;
MythDownloadInfo *dlInfo = m_downloadReplies[reply];
if (!dlInfo)
return;
dlInfo->m_lastStat = QDateTime::currentDateTime();
VERBOSE(VB_FILE+VB_EXTRA, LOC + QString("downloadProgress: %1 "
"to %2 is at %3 of %4 bytes downloaded")
.arg(dlInfo->m_url).arg(dlInfo->m_outFile)
.arg(bytesReceived).arg(bytesTotal));
if (!dlInfo->m_syncMode && dlInfo->m_caller)
{
VERBOSE(VB_FILE+VB_EXTRA, QString("downloadProgress(%1): "
"sending event to caller")
.arg(reply->url().toString()));
bool appendToFile = (dlInfo->m_bytesReceived != 0);
QByteArray data = reply->readAll();
if (!dlInfo->m_outFile.isEmpty())
saveFile(dlInfo->m_outFile, data, appendToFile);
if (dlInfo->m_data)
dlInfo->m_data->append(data);
dlInfo->m_bytesReceived = bytesReceived;
dlInfo->m_bytesTotal = bytesTotal;
QStringList args;
args << dlInfo->m_url;
args << dlInfo->m_outFile;
args << QString::number(bytesReceived);
args << QString::number(bytesTotal);
QCoreApplication::postEvent(dlInfo->m_caller,
new MythEvent("DOWNLOAD_FILE UPDATE", args));
}
}
/** \fn MythDownloadManager::saveFile(const QString &outFile,
const QByteArray &data,
const bool append)
* \brief Saves a QByteArray of data to a given filename. Any parent
* directories are created automatically.
* \param outFile Filename to save to.
* \param data Data to save.
* \param append Append data to output file instead of overwriting.
* \return true if successful, false otherwise
*/
bool MythDownloadManager::saveFile(const QString &outFile,
const QByteArray &data,
const bool append)
{
if (outFile.isEmpty() || !data.size())
return false;
QFile file(outFile);
QFileInfo fileInfo(outFile);
QDir qdir(fileInfo.absolutePath());
if (!qdir.exists() && !qdir.mkpath(fileInfo.absolutePath()))
{
VERBOSE(VB_IMPORTANT, QString("Failed to create: '%1'")
.arg(fileInfo.absolutePath()));
return false;
}
QIODevice::OpenMode mode = QIODevice::Unbuffered|QIODevice::WriteOnly;
if (append)
mode |= QIODevice::Append;
if (!file.open(mode))
{
VERBOSE(VB_IMPORTANT, QString("Failed to open: '%1'")
.arg(outFile));
return false;
}
off_t offset = 0;
size_t remaining = data.size();
uint failure_cnt = 0;
while ((remaining > 0) && (failure_cnt < 5))
{
ssize_t written = file.write(data.data() + offset, remaining);
if (written < 0)
{
failure_cnt++;
usleep(50000);