We now have a current svn snapshot of libqxt in our contrib dir, and
[quassel.git] / src / contrib / libqxt-2007-10-24 / src / web / qxtwebcore.cpp
diff --git a/src/contrib/libqxt-2007-10-24/src/web/qxtwebcore.cpp b/src/contrib/libqxt-2007-10-24/src/web/qxtwebcore.cpp
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+/****************************************************************************
+**
+** Copyright (C) Qxt Foundation. Some rights reserved.
+**
+** This file is part of the QxtWeb  module of the Qt eXTension library
+**
+** This library is free software; you can redistribute it and/or modify it
+** under the terms of th Common Public License, version 1.0, as published by
+** IBM.
+**
+** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
+** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
+** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
+** FITNESS FOR A PARTICULAR PURPOSE.
+**
+** You should have received a copy of the CPL along with this file.
+** See the LICENSE file and the cpl1.0.txt file included with the source
+** distribution for more information. If you did not receive a copy of the
+** license, contact the Qxt Foundation.
+**
+** <http://libqxt.org>  <foundation@libqxt.org>
+**
+****************************************************************************/
+#include "qxtwebcore.h"
+#include "qxtabstractwebconnector.h"
+#include "qxtwebcore_p.h"
+
+#include <QTimer>
+#include <QUrl>
+#include "qxtwebcontroller.h"
+#include <QCoreApplication>
+#include <QTcpSocket>
+#include <QVariant>
+#include <QtDebug>
+#include <QUrl>
+#include <ctime>
+
+/*!
+        \class QxtWebCore QxtWebCore
+        \ingroup QxtWeb
+        \brief qxtweb application core class. communicates, delegates, does all of the magic ;)
+
+
+        QxtWebCore is the base class of your web application.
+        it listens to the scgi protocoll
+
+        construct one webcore object in the main function of your application.
+        you must contruct it AFTER QCoreApplication and BEFORe any controllers.
+
+        \code
+        int main(int argc,char ** argv)
+                {
+                QCoreApplication  app(argc,argv);
+                QxtWebCore core();
+                core.listen(8080);
+                QxtWebController controller("root");
+                app.exec();
+                }
+        \endcode
+*/
+
+/*!
+        \fn static QxtWebCore* instance();
+        singleton accessor
+        \fn static void send(QByteArray);
+        Send data to the client. Use this rarely, but use it always when sending binary data such as images. \n
+        normal text/html comunication should be done using the controllers echo() function \n
+        note that after you called send the first time you cannot modify the header anymore \n
+        sending may be ignored by the transport when there is no client currently handled
+        \fn static QIODevice * socket();
+        direct access to a iodevice for writing binary data. \n
+        You shouldn't use that unless it's absolutly nessesary
+        \fn static QxtError parseString(QByteArray str, post_t & POST);
+        much like phps parse_string \n
+        \fn static QByteArray readContent(int maxsize=5000);
+        reads the content from the current socket if any has sent. \n
+        returns an empty QByteArray on any error.  \n
+        the content is cut at maxsize and not read from the socket.  \n
+        FIXME:\warning: this function is BLOCKING.  while content is read from the client, no other requests can be handled.
+        FIXME:\warning: due to paranoid timeouts this might not work for slow clients
+ */
+
+
+static QxtWebCore * singleton_m=0;
+
+//-----------------------interface----------------------------
+QxtWebCore::QxtWebCore(QxtAbstractWebConnector * pt):QObject()
+{
+    if (singleton_m)
+        qFatal("you're trying to construct QxtWebCore twice!");
+    qRegisterMetaType<server_t>("server_t");
+    qRegisterMetaTypeStreamOperators<server_t>("server_t");
+
+    singleton_m=this;
+    QXT_INIT_PRIVATE(QxtWebCore);
+    qxt_d().connector=pt;
+    connect(pt,SIGNAL(aboutToClose()),this,SIGNAL(aboutToClose()));
+    connect(pt,SIGNAL(incomming(server_t)),&qxt_d(),SLOT(incomming(server_t)));
+}
+
+QxtWebCore::~QxtWebCore()
+{
+    singleton_m=0;
+}
+
+
+void QxtWebCore::send(QString a)
+{
+    instance()->qxt_d().send(a);
+}
+void QxtWebCore::header(QString a,QString b)
+{
+    instance()->qxt_d().header(a,b);
+}
+
+server_t &  QxtWebCore::SERVER()
+{
+    return instance()->qxt_d().currentservert;
+}
+
+QIODevice * QxtWebCore::socket()
+{
+    return instance()->qxt_d().connector->socket();
+}
+
+int QxtWebCore::start (quint16 port ,const QHostAddress & address )
+{
+    return instance()->qxt_d().connector->start(port,address);
+}
+
+void QxtWebCore::redirect(QString location,int code)
+{
+    instance()->qxt_d().redirect(location,code);
+}
+
+QxtWebCore * QxtWebCore::instance()
+{
+    if (!singleton_m)
+        qFatal("no QxtWebCore constructed");
+    return singleton_m;
+}
+void QxtWebCore::setCodec ( QTextCodec * codec )
+{
+    instance()->qxt_d().decoder=codec->makeDecoder();
+    instance()->qxt_d().encoder=codec->makeEncoder();
+}
+
+void QxtWebCore::close()
+{
+    instance()->qxt_d().close();
+}
+void QxtWebCore::sendHeader()
+{
+    instance()->qxt_d().sendheader();
+
+}
+
+//-----------------------implementation----------------------------
+
+
+
+
+QxtWebCorePrivate::QxtWebCorePrivate(QObject *parent):QObject(parent),QxtPrivate<QxtWebCore>()
+{
+    connector=0;
+    decoder=0;
+    encoder=0;
+}
+
+void QxtWebCorePrivate::send(QString str)
+{
+    sendheader();
+
+    if (encoder)
+        connector->socket()->write(encoder->fromUnicode (str));
+    else
+        connector->socket()->write(str.toUtf8());
+
+}
+void QxtWebCorePrivate::close()
+{
+    sendheader();
+    connector->close();
+}
+
+void QxtWebCorePrivate::sendheader()
+{
+    if (!header_sent)
+    {
+        header_sent=true;
+        connector->sendHeader(answer);
+    }
+}
+void QxtWebCorePrivate::header(QString k,QString v)
+{
+    if (header_sent)
+        qWarning("headers already sent");
+    if (encoder)
+        answer[encoder->fromUnicode (k)]=encoder->fromUnicode (v);
+    else
+        answer[k.toUtf8()]=v.toUtf8();
+
+}
+void QxtWebCorePrivate::redirect(QString l,int code)
+{
+    QByteArray loc =QUrl(l).toEncoded ();
+
+    if (loc.isEmpty())
+        loc="/";
+    QxtWebCore::header("Status",QString::number(code).toUtf8());
+    QxtWebCore::header("Location",loc);
+    send(QString("<a href=\""+loc+"\">"+loc+"</a>"));
+}
+
+
+
+
+
+
+void QxtWebCorePrivate::incomming(server_t  SERVER)
+{
+    header_sent=false;
+    answer.clear();
+    qDebug("%i, %s -> %s",(int)time(NULL),SERVER["HTTP_HOST"].constData(),SERVER["REQUEST_URI"].constData());
+
+
+    currentservert=SERVER;
+
+    emit(qxt_p().request());
+
+    ///--------------find controller ------------------
+    QByteArray path="404";
+    QList<QByteArray> requestsplit = SERVER["REQUEST_URI"].split('/');
+    if (requestsplit.count()>1)
+    {
+        path=requestsplit.at(1);
+        if (path.trimmed().isEmpty())path="root";
+    }
+    else if (requestsplit.count()>0)
+        path="root";
+
+    ///--------------controller------------------
+
+    QxtWebController * controller =qFindChild<QxtWebController *> (QCoreApplication::instance(), path );
+    if (!controller)
+    {
+        header("Status","404");
+        send("<h1>404 Controller ");
+        send(path);
+        send(" not found</h1>");
+        close();
+        qDebug("404 controller '%s' not found",path.constData());
+        return;
+    }
+
+    int i=controller->invoke(SERVER);
+    if (i!=0 && i!=2)
+    {
+        header("Status","404");
+        send("<h1>");
+        send(QString::number(i));
+        send("</h1>Sorry,, that didn't work as expected. You might want to contact this systems administrator.");
+    }
+    if (i!=2) ///FIXME temporary solution for keepalive
+        close();
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+//-----------------------helper----------------------------
+
+QByteArray QxtWebCore::content(int maxsize)
+{
+    return instance()->qxt_d().connector->content(maxsize);
+}
+
+
+QxtError QxtWebCore::parseString(QByteArray content_in, post_t & POST)
+{
+    QList<QByteArray> posts = content_in.split('&');
+    QByteArray post;
+    foreach(post,posts)
+    {
+        QList<QByteArray> b =post.split('=');
+        if (b.count()!=2)continue;
+        POST[QUrl::fromPercentEncoding  ( b[0].replace("+","%20"))]=QUrl::fromPercentEncoding  ( b[1].replace("+","%20") );
+    }
+    QXT_DROP_OK
+}
+
+
+
+
+