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Api_v1.cpp
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Api_v1.cpp
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/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
*
* Copyright 2010-2011, Christian Muehlhaeuser <muesli@tomahawk-player.org>
* Copyright 2010-2011, Jeff Mitchell <jeff@tomahawk-player.org>
* Copyright 2010-2011, Leo Franchi <lfranchi@kde.org>
*
* Tomahawk 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 3 of the License, or
* (at your option) any later version.
*
* Tomahawk 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 Tomahawk. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Api_v1.h"
#include "utils/Logger.h"
#include "utils/TomahawkUtils.h"
#include "database/Database.h"
#include "database/DatabaseCommand_AddClientAuth.h"
#include "database/DatabaseCommand_ClientAuthValid.h"
#include "network/Servent.h"
#include "Pipeline.h"
#include "Source.h"
#include <QHash>
using namespace Tomahawk;
Api_v1::Api_v1(QxtAbstractWebSessionManager* sm, QObject* parent)
: QxtWebSlotService(sm, parent)
{
}
void
Api_v1::auth_1( QxtWebRequestEvent* event, QString arg )
{
qDebug() << "AUTH_1 HTTP" << event->url.toString() << arg;
if ( !event->url.hasQueryItem( "website" ) || !event->url.hasQueryItem( "name" ) )
{
qDebug() << "Malformed HTTP resolve request";
send404( event );
return;
}
QString formToken = uuid();
if ( event->url.hasQueryItem( "json" ) )
{
// JSON response
QVariantMap m;
m[ "formtoken" ] = formToken;
sendJSON( m, event );
}
else
{
// webpage request
QString authPage = RESPATH "www/auth.html";
QHash< QString, QString > args;
if ( event->url.hasQueryItem( "receiverurl" ) )
args[ "url" ] = QUrl::fromPercentEncoding( event->url.queryItemValue( "receiverurl" ).toUtf8() );
args[ "formtoken" ] = formToken;
args[ "website" ] = QUrl::fromPercentEncoding( event->url.queryItemValue( "website" ).toUtf8() );
args[ "name" ] = QUrl::fromPercentEncoding( event->url.queryItemValue( "name" ).toUtf8() );
sendWebpageWithArgs( event, authPage, args );
}
}
void
Api_v1::auth_2( QxtWebRequestEvent* event, QString arg )
{
qDebug() << "AUTH_2 HTTP" << event->url.toString() << arg;
if ( event->content.isNull() )
{
qDebug() << "Null content";
send404( event );
return;
}
QString params = QUrl::fromPercentEncoding( event->content->readAll() );
params = params.mid( params.indexOf( '?' ) );
QStringList pieces = params.split( '&' );
QHash< QString, QString > queryItems;
foreach ( const QString& part, pieces )
{
QStringList keyval = part.split( '=' );
if ( keyval.size() == 2 )
queryItems.insert( keyval.first(), keyval.last() );
else
qDebug() << "Failed parsing url parameters:" << part;
}
qDebug() << "has query items:" << pieces;
if ( !params.contains( "website" ) || !params.contains( "name" ) || !params.contains( "formtoken" ) )
{
qDebug() << "Malformed HTTP resolve request";
send404( event );
return;
}
QString website = queryItems[ "website" ];
QString name = queryItems[ "name" ];
QByteArray authtoken = uuid().toLatin1();
qDebug() << "HEADERS:" << event->headers;
if ( !queryItems.contains( "receiverurl" ) || queryItems.value( "receiverurl" ).isEmpty() )
{
//no receiver url, so do it ourselves
if ( queryItems.contains( "json" ) )
{
QVariantMap m;
m[ "authtoken" ] = authtoken;
sendJSON( m, event );
}
else
{
QString authPage = RESPATH "www/auth.na.html";
QHash< QString, QString > args;
args[ "authcode" ] = authtoken;
args[ "website" ] = website;
args[ "name" ] = name;
sendWebpageWithArgs( event, authPage, args );
}
}
else
{
// do what the client wants
QUrl receiverurl = QUrl( queryItems.value( "receiverurl" ), QUrl::TolerantMode );
receiverurl.addEncodedQueryItem( "authtoken", "#" + authtoken );
qDebug() << "Got receiver url:" << receiverurl.toString();
QxtWebRedirectEvent* e = new QxtWebRedirectEvent( event->sessionID, event->requestID, receiverurl.toString() );
postEvent( e );
// TODO validation of receiverurl?
}
DatabaseCommand_AddClientAuth* dbcmd = new DatabaseCommand_AddClientAuth( authtoken, website, name, event->headers.key( "ua" ) );
Database::instance()->enqueue( QSharedPointer<DatabaseCommand>(dbcmd) );
}
// all v1 api calls go to /api/
void
Api_v1::api( QxtWebRequestEvent* event )
{
qDebug() << "HTTP" << event->url.toString();
const QUrl& url = event->url;
if ( url.hasQueryItem( "method" ) )
{
const QString method = url.queryItemValue( "method" );
if ( method == "stat" ) return stat( event );
if ( method == "resolve" ) return resolve( event );
if ( method == "get_results" ) return get_results( event );
}
send404( event );
}
// request for stream: /sid/<id>
void
Api_v1::sid( QxtWebRequestEvent* event, QString unused )
{
Q_UNUSED( unused );
RID rid = event->url.path().mid( 5 );
qDebug() << "Request for sid" << rid;
result_ptr rp = Pipeline::instance()->result( rid );
if ( rp.isNull() )
{
return send404( event );
}
QSharedPointer<QIODevice> iodev = Servent::instance()->getIODeviceForUrl( rp );
if ( iodev.isNull() )
{
return send404( event ); // 503?
}
QxtWebPageEvent* e = new QxtWebPageEvent( event->sessionID, event->requestID, iodev );
e->streaming = iodev->isSequential();
e->contentType = rp->mimetype().toAscii();
if ( rp->size() > 0 )
e->headers.insert( "Content-Length", QString::number( rp->size() ) );
postEvent( e );
}
void
Api_v1::send404( QxtWebRequestEvent* event )
{
qDebug() << "404" << event->url.toString();
QxtWebPageEvent* wpe = new QxtWebPageEvent( event->sessionID, event->requestID, "<h1>Not Found</h1>" );
wpe->status = 404;
wpe->statusMessage = "no event found";
postEvent( wpe );
}
void
Api_v1::stat( QxtWebRequestEvent* event )
{
qDebug() << "Got Stat request:" << event->url.toString();
m_storedEvent = event;
if ( !event->content.isNull() )
qDebug() << "BODY:" << event->content->readAll();
if ( event->url.hasQueryItem( "auth" ) )
{
// check for auth status
DatabaseCommand_ClientAuthValid* dbcmd = new DatabaseCommand_ClientAuthValid( event->url.queryItemValue( "auth" ) );
connect( dbcmd, SIGNAL( authValid( QString, QString, bool ) ), this, SLOT( statResult( QString, QString, bool ) ) );
Database::instance()->enqueue( QSharedPointer<DatabaseCommand>(dbcmd) );
}
else
{
statResult( QString(), QString(), false );
}
}
void
Api_v1::statResult( const QString& clientToken, const QString& name, bool valid )
{
Q_UNUSED( clientToken )
Q_UNUSED( name )
Q_ASSERT( m_storedEvent );
if ( !m_storedEvent )
return;
QVariantMap m;
m.insert( "name", "playdar" );
m.insert( "version", "0.1.1" ); // TODO (needs to be >=0.1.1 for JS to work)
m.insert( "authenticated", valid ); // TODO
m.insert( "capabilities", QVariantList() );
sendJSON( m, m_storedEvent );
m_storedEvent = 0;
}
void
Api_v1::resolve( QxtWebRequestEvent* event )
{
if ( !event->url.hasQueryItem( "artist" ) ||
!event->url.hasQueryItem( "track" ) )
{
qDebug() << "Malformed HTTP resolve request";
return send404( event );
}
const QString artist = QUrl::fromPercentEncoding( event->url.queryItemValue( "artist" ).toUtf8() );
const QString track = QUrl::fromPercentEncoding( event->url.queryItemValue( "track" ).toUtf8() );
const QString album = QUrl::fromPercentEncoding( event->url.queryItemValue( "album" ).toUtf8() );
if ( artist.trimmed().isEmpty() ||
track.trimmed().isEmpty() )
{
qDebug() << "Malformed HTTP resolve request";
return send404( event );
}
QString qid;
if ( event->url.hasQueryItem( "qid" ) )
qid = event->url.queryItemValue( "qid" );
else
qid = uuid();
query_ptr qry = Query::get( artist, track, album, qid, false );
if ( qry.isNull() )
{
return send404( event );
}
Pipeline::instance()->resolve( qry, true, true );
QVariantMap r;
r.insert( "qid", qid );
sendJSON( r, event );
}
void
Api_v1::staticdata( QxtWebRequestEvent* event, const QString& str )
{
qDebug() << "STATIC request:" << event << str;
if ( str.contains( "tomahawk_auth_logo.png" ) )
{
QFile f( RESPATH "www/tomahawk_banner_small.png" );
f.open( QIODevice::ReadOnly );
QByteArray data = f.readAll();
QxtWebPageEvent * e = new QxtWebPageEvent( event->sessionID, event->requestID, data );
e->contentType = "image/png";
postEvent( e );
}
}
void
Api_v1::get_results( QxtWebRequestEvent* event )
{
if ( !event->url.hasQueryItem( "qid" ) )
{
tDebug() << "Malformed HTTP get_results request";
send404( event );
return;
}
query_ptr qry = Pipeline::instance()->query( event->url.queryItemValue( "qid" ) );
if ( qry.isNull() )
{
send404( event );
return;
}
QVariantMap r;
r.insert( "qid", qry->id() );
r.insert( "poll_interval", 1300 );
r.insert( "refresh_interval", 1000 );
r.insert( "poll_limit", 14 );
r.insert( "solved", qry->playable() );
r.insert( "query", qry->toVariant() );
QVariantList res;
foreach( const result_ptr& rp, qry->results() )
{
if ( rp->isOnline() )
res << rp->toVariant();
}
r.insert( "results", res );
sendJSON( r, event );
}
void
Api_v1::sendJSON( const QVariantMap& m, QxtWebRequestEvent* event )
{
QJson::Serializer ser;
QByteArray ctype;
QByteArray body = ser.serialize( m );
if ( event->url.hasQueryItem("jsonp") && !event->url.queryItemValue( "jsonp" ).isEmpty() )
{
ctype = "text/javascript; charset=utf-8";
body.prepend( QString("%1( ").arg( event->url.queryItemValue( "jsonp" ) ).toAscii() );
body.append( " );" );
}
else
{
ctype = "appplication/json; charset=utf-8";
}
QxtWebPageEvent * e = new QxtWebPageEvent( event->sessionID, event->requestID, body );
e->contentType = ctype;
e->headers.insert( "Content-Length", QString::number( body.length() ) );
postEvent( e );
qDebug() << "JSON response" << event->url.toString() << body;
}
// load an html template from a file, replace args from map
// then serve
void
Api_v1::sendWebpageWithArgs( QxtWebRequestEvent* event, const QString& filenameSource, const QHash< QString, QString >& args )
{
if ( !QFile::exists( filenameSource ) )
qWarning() << "Passed invalid file for html source:" << filenameSource;
QFile f( filenameSource );
f.open( QIODevice::ReadOnly );
QByteArray html = f.readAll();
foreach( const QString& param, args.keys() )
{
html.replace( QString( "<%%1%>" ).arg( param.toUpper() ), args.value( param ).toUtf8() );
}
// workaround for receiverurl
if ( !args.keys().contains( "URL" ) )
html.replace( QString( "<%URL%>" ).toLatin1(), QByteArray() );
QxtWebPageEvent* e = new QxtWebPageEvent( event->sessionID, event->requestID, html );
postEvent( e );
}
void
Api_v1::index( QxtWebRequestEvent* event )
{
send404( event );
}