WebUI core redesign.

src/preferences/preferences.cpp

@@ -951,7 +951,6 @@ QString Preferences::getWebUiPassword() const {
   QString pass_ha1 = value("Preferences/WebUI/Password_ha1").toString();
   if (pass_ha1.isEmpty()) {
     QCryptographicHash md5(QCryptographicHash::Md5);
-    md5.addData(getWebUiUsername().toLocal8Bit()+":"+QBT_REALM+":");
     md5.addData("adminadmin");
     pass_ha1 = md5.result().toHex();
   }
@@ -959,13 +958,8 @@ QString Preferences::getWebUiPassword() const {
 }
 
 void Preferences::setWebUiPassword(const QString &new_password) {
-  // Get current password md5
-  QString current_pass_md5 = getWebUiPassword();
-  // Check if password did not change
-  if (current_pass_md5 == new_password) return;
   // Encode to md5 and save
   QCryptographicHash md5(QCryptographicHash::Md5);
-  md5.addData(getWebUiUsername().toLocal8Bit()+":"+QBT_REALM+":");
   md5.addData(new_password.toLocal8Bit());
 
   setValue("Preferences/WebUI/Password_ha1", md5.result().toHex());

src/preferences/preferences.h

@@ -44,7 +44,6 @@
 
 #include <libtorrent/version.hpp>
 
-#define QBT_REALM "Web UI Access"
 enum scheduler_days { EVERY_DAY, WEEK_DAYS, WEEK_ENDS, MON, TUE, WED, THU, FRI, SAT, SUN };
 enum maxRatioAction {PAUSE_ACTION, REMOVE_ACTION};
 namespace Proxy {

src/qtlibtorrent/qbtsession.cpp

@@ -671,8 +671,6 @@ void QBtSession::initWebUi() {
     }
 #endif
 
-    httpServer->setAuthorization(username, password);
-    httpServer->setlocalAuthEnabled(pref->isWebUiLocalAuthEnabled());
     if (!httpServer->isListening()) {
       bool success = httpServer->listen(QHostAddress::Any, port);
       if (success)

src/tracker/qtracker.cpp

@@ -29,18 +29,14 @@
  */
 
 #include <QTcpSocket>
-#include <QUrl>
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
-#include <QUrlQuery>
-#endif
 
 #include <libtorrent/bencode.hpp>
 #include <libtorrent/entry.hpp>
 
-#include "httprequestheader.h"
-#include "httpresponseheader.h"
 #include "qtracker.h"
 #include "preferences.h"
+#include "httpresponsegenerator.h"
+#include "httprequestparser.h"
 
 #include <vector>
 
@@ -93,53 +89,38 @@ void QTracker::readRequest()
   QTcpSocket *socket = static_cast<QTcpSocket*>(sender());
   QByteArray input = socket->readAll();
   //qDebug("QTracker: Raw request:\n%s", input.data());
-  HttpRequestHeader http_request(input);
-  if (!http_request.isValid()) {
-    qDebug("QTracker: Invalid HTTP Request:\n %s", qPrintable(http_request.toString()));
+  HttpRequest request;
+  if (HttpRequestParser::parse(input, request) != HttpRequestParser::NoError) {
+    qDebug("QTracker: Invalid HTTP Request:\n %s", qPrintable(input));
     respondInvalidRequest(socket, 100, "Invalid request type");
     return;
   }
   //qDebug("QTracker received the following request:\n%s", qPrintable(parser.toString()));
   // Request is correct, is it a GET request?
-  if (http_request.method() != "GET") {
-    qDebug("QTracker: Unsupported HTTP request: %s", qPrintable(http_request.method()));
+  if (request.method != "GET") {
+    qDebug("QTracker: Unsupported HTTP request: %s", qPrintable(request.method));
     respondInvalidRequest(socket, 100, "Invalid request type");
     return;
   }
-  if (!http_request.path().startsWith("/announce", Qt::CaseInsensitive)) {
-    qDebug("QTracker: Unrecognized path: %s", qPrintable(http_request.path()));
+  if (!request.path.startsWith("/announce", Qt::CaseInsensitive)) {
+    qDebug("QTracker: Unrecognized path: %s", qPrintable(request.path));
     respondInvalidRequest(socket, 100, "Invalid request type");
     return;
   }
 
   // OK, this is a GET request
-  // Parse GET parameters
-  QHash<QString, QString> get_parameters;
-  QUrl url = QUrl::fromEncoded(http_request.path().toLatin1());
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
-  QUrlQuery query(url);
-  QListIterator<QPair<QString, QString> > i(query.queryItems());
-#else
-  QListIterator<QPair<QString, QString> > i(url.queryItems());
-#endif
-  while (i.hasNext()) {
-    QPair<QString, QString> pair = i.next();
-    get_parameters[pair.first] = pair.second;
-  }
-
-  respondToAnnounceRequest(socket, get_parameters);
+  respondToAnnounceRequest(socket, request.gets);
 }
 
 void QTracker::respondInvalidRequest(QTcpSocket *socket, int code, QString msg)
 {
-  HttpResponseHeader response;
-  response.setStatusLine(code, msg);
-  socket->write(response.toString().toLocal8Bit());
+  HttpResponse response(code, msg);
+  socket->write(HttpResponseGenerator::generate(response));
   socket->disconnectFromHost();
 }
 
 void QTracker::respondToAnnounceRequest(QTcpSocket *socket,
-                                        const QHash<QString, QString>& get_parameters)
+                                        const QMap<QString, QString>& get_parameters)
 {
   TrackerAnnounceRequest annonce_req;
   // IP
@@ -246,12 +227,12 @@ void QTracker::ReplyWithPeerList(QTcpSocket *socket, const TrackerAnnounceReques
   // bencode
   std::vector<char> buf;
   bencode(std::back_inserter(buf), reply_entry);
-  QByteArray reply(&buf[0], buf.size());
+  QByteArray reply(&buf[0], static_cast<int>(buf.size()));
   qDebug("QTracker: reply with the following bencoded data:\n %s", reply.constData());
   // HTTP reply
-  HttpResponseHeader response;
-  response.setStatusLine(200, "OK");
-  socket->write(response.toString().toLocal8Bit() + reply);
+  HttpResponse response(200, "OK");
+  response.content = reply;
+  socket->write(HttpResponseGenerator::generate(response));
   socket->disconnectFromHost();
 }
 

src/tracker/qtracker.h

@@ -61,7 +61,7 @@ protected slots:
   void readRequest();
   void handlePeerConnection();
   void respondInvalidRequest(QTcpSocket *socket, int code, QString msg);
-  void respondToAnnounceRequest(QTcpSocket *socket, const QHash<QString, QString>& get_parameters);
+  void respondToAnnounceRequest(QTcpSocket *socket, const QMap<QString, QString>& get_parameters);
   void ReplyWithPeerList(QTcpSocket *socket, const TrackerAnnounceRequest &annonce_req);
 
 private:

src/webui/abstractrequesthandler.cpp

@@ -0,0 +1,174 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2012, Christophe Dumez <chris@qbittorrent.org>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#include <QDebug>
+#include <QDir>
+#include <QTemporaryFile>
+#include <QNetworkCookie>
+#include "preferences.h"
+#include "webapplication.h"
+#include "abstractrequesthandler.h"
+
+AbstractRequestHandler::AbstractRequestHandler(const HttpRequest &request, const HttpEnvironment &env, WebApplication *app)
+  : app_(app), session_(0), request_(request), env_(env)
+{
+  if (isBanned())
+  {
+    status(403, "Forbidden");
+    print(QObject::tr("Your IP address has been banned after too many failed authentication attempts."));
+    return;
+  }
+
+  sessionInitialize();
+
+  if (!sessionActive() && !isAuthNeeded()) sessionStart();
+}
+
+HttpResponse AbstractRequestHandler::run()
+{
+  response_ = HttpResponse();
+  processRequest();
+  return response_;
+}
+
+bool AbstractRequestHandler::isAuthNeeded()
+{
+  return
+      (
+        env_.clientAddress != QHostAddress::LocalHost &&
+        env_.clientAddress != QHostAddress::LocalHostIPv6
+      ) || Preferences::instance()->isWebUiLocalAuthEnabled();
+}
+
+void AbstractRequestHandler::status(uint code, const QString& text)
+{
+  response_.status = HttpResponseStatus(code, text);
+}
+
+void AbstractRequestHandler::header(const QString& name, const QString& value)
+{
+  response_.headers[name] = value;
+}
+
+void AbstractRequestHandler::print(const QString& text, const QString& type)
+{
+  print_impl(text.toUtf8(), type);
+}
+
+void AbstractRequestHandler::print(const QByteArray& data, const QString& type)
+{
+  print_impl(data, type);
+}
+
+void AbstractRequestHandler::print_impl(const QByteArray& data, const QString& type)
+{
+  if (!response_.headers.contains(HEADER_CONTENT_TYPE))
+    response_.headers[HEADER_CONTENT_TYPE] = type;
+
+  response_.content += data;
+}
+
+void AbstractRequestHandler::printFile(const QString& path)
+{
+  QByteArray data;
+  QString type;
+
+  if (!app_->readFile(path, data, type))
+  {
+    status(404, "Not Found");
+    return;
+  }
+
+  print(data, type);
+}
+
+void AbstractRequestHandler::sessionInitialize()
+{
+  app_->sessionInitialize(this);
+}
+
+void AbstractRequestHandler::sessionStart()
+{
+  if (app_->sessionStart(this))
+  {
+    QNetworkCookie cookie(C_SID.toUtf8(), session_->id.toUtf8());
+    cookie.setPath("/");
+    header(HEADER_SET_COOKIE, cookie.toRawForm());
+  }
+}
+
+void AbstractRequestHandler::sessionEnd()
+{
+  if (sessionActive())
+  {
+    QNetworkCookie cookie(C_SID.toUtf8(), session_->id.toUtf8());
+    cookie.setPath("/");
+    cookie.setExpirationDate(QDateTime::currentDateTime());
+
+    if (app_->sessionEnd(this))
+    {
+      header(HEADER_SET_COOKIE, cookie.toRawForm());
+    }
+  }
+}
+
+bool AbstractRequestHandler::isBanned() const
+{
+  return app_->isBanned(this);
+}
+
+int AbstractRequestHandler::failedAttempts() const
+{
+  return app_->failedAttempts(this);
+}
+
+void AbstractRequestHandler::resetFailedAttempts()
+{
+  app_->resetFailedAttempts(this);
+}
+
+void AbstractRequestHandler::increaseFailedAttempts()
+{
+  app_->increaseFailedAttempts(this);
+}
+
+QString AbstractRequestHandler::saveTmpFile(const QByteArray &data)
+{
+  QTemporaryFile tmpfile(QDir::temp().absoluteFilePath("qBT-XXXXXX.torrent"));
+  tmpfile.setAutoRemove(false);
+  if (tmpfile.open())
+  {
+    tmpfile.write(data);
+    tmpfile.close();
+    return tmpfile.fileName();
+  }
+
+  qWarning() << "I/O Error: Could not create temporary file";
+  return QString();
+}

src/webui/abstractrequesthandler.h

@@ -0,0 +1,89 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#ifndef ABSTRACTREQUESTHANDLER_H
+#define ABSTRACTREQUESTHANDLER_H
+
+#include <QString>
+#include "httptypes.h"
+
+class WebApplication;
+struct WebSession;
+
+class AbstractRequestHandler
+{
+  friend class WebApplication;
+
+public:
+  AbstractRequestHandler(
+      const HttpRequest& request, const HttpEnvironment& env,
+      WebApplication* app);
+
+  HttpResponse run();
+
+protected:
+  virtual void processRequest() = 0;
+
+  void status(uint code, const QString& text);
+  void header(const QString& name, const QString& value);
+  void print(const QString& text, const QString& type = CONTENT_TYPE_HTML);
+  void print(const QByteArray& data, const QString& type = CONTENT_TYPE_HTML);
+  void printFile(const QString& path);
+
+  // Session management
+  bool sessionActive() const { return session_ != 0; }
+  void sessionInitialize();
+  void sessionStart();
+  void sessionEnd();
+
+  // Ban management
+  bool isBanned() const;
+  int failedAttempts() const;
+  void resetFailedAttempts();
+  void increaseFailedAttempts();
+
+  bool isAuthNeeded();
+
+  // save data to temporary file on disk and return its name (or empty string if fails)
+  static QString saveTmpFile(const QByteArray& data);
+
+  inline WebSession* session() { return session_; }
+  inline HttpRequest request() const { return request_; }
+  inline HttpEnvironment env() const { return env_; }
+
+private:
+  WebApplication* app_;
+  WebSession* session_;
+  const HttpRequest request_;
+  const HttpEnvironment env_;
+  HttpResponse response_;
+
+  void print_impl(const QByteArray& data, const QString& type);
+};
+
+#endif // ABSTRACTREQUESTHANDLER_H

src/webui/extra_translations.h

@@ -0,0 +1,75 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#ifndef EXTRA_TRANSLATIONS_H
+#define EXTRA_TRANSLATIONS_H
+
+#include <QObject>
+
+// Additional translations for Web UI
+static const char *__TRANSLATIONS__[] = {
+  QT_TRANSLATE_NOOP("HttpServer", "File"),
+  QT_TRANSLATE_NOOP("HttpServer", "Edit"),
+  QT_TRANSLATE_NOOP("HttpServer", "Help"),
+  QT_TRANSLATE_NOOP("HttpServer", "Download Torrents from their URL or Magnet link"),
+  QT_TRANSLATE_NOOP("HttpServer", "Only one link per line"),
+  QT_TRANSLATE_NOOP("HttpServer", "Download local torrent"),
+  QT_TRANSLATE_NOOP("HttpServer", "Torrent files were correctly added to download list."),
+  QT_TRANSLATE_NOOP("HttpServer", "Point to torrent file"),
+  QT_TRANSLATE_NOOP("HttpServer", "Download"),
+  QT_TRANSLATE_NOOP("HttpServer", "Are you sure you want to delete the selected torrents from the transfer list and hard disk?"),
+  QT_TRANSLATE_NOOP("HttpServer", "Download rate limit must be greater than 0 or disabled."),
+  QT_TRANSLATE_NOOP("HttpServer", "Upload rate limit must be greater than 0 or disabled."),
+  QT_TRANSLATE_NOOP("HttpServer", "Maximum number of connections limit must be greater than 0 or disabled."),
+  QT_TRANSLATE_NOOP("HttpServer", "Maximum number of connections per torrent limit must be greater than 0 or disabled."),
+  QT_TRANSLATE_NOOP("HttpServer", "Maximum number of upload slots per torrent limit must be greater than 0 or disabled."),
+  QT_TRANSLATE_NOOP("HttpServer", "Unable to save program preferences, qBittorrent is probably unreachable."),
+  QT_TRANSLATE_NOOP("HttpServer", "Language"),
+  QT_TRANSLATE_NOOP("HttpServer", "The port used for incoming connections must be greater than 1024 and less than 65535."),
+  QT_TRANSLATE_NOOP("HttpServer", "The port used for the Web UI must be greater than 1024 and less than 65535."),
+  QT_TRANSLATE_NOOP("HttpServer", "The Web UI username must be at least 3 characters long."),
+  QT_TRANSLATE_NOOP("HttpServer", "The Web UI password must be at least 3 characters long."),
+  QT_TRANSLATE_NOOP("HttpServer", "Save"),
+  QT_TRANSLATE_NOOP("HttpServer", "qBittorrent client is not reachable"),
+  QT_TRANSLATE_NOOP("HttpServer", "HTTP Server"),
+  QT_TRANSLATE_NOOP("HttpServer", "The following parameters are supported:"),
+  QT_TRANSLATE_NOOP("HttpServer", "Torrent path"),
+  QT_TRANSLATE_NOOP("HttpServer", "Torrent name"),
+  QT_TRANSLATE_NOOP("HttpServer", "qBittorrent has been shutdown."),
+  QT_TRANSLATE_NOOP("HttpServer", "Unable to log in, qBittorrent is probably unreachable."),
+  QT_TRANSLATE_NOOP("HttpServer", "Invalid Username or Password."),
+  QT_TRANSLATE_NOOP("HttpServer", "Password"),
+  QT_TRANSLATE_NOOP("HttpServer", "Login"),
+  QT_TRANSLATE_NOOP("HttpServer", "qBittorrent web User Interface")
+};
+
+static const struct { const char *source; const char *comment; } __COMMENTED_TRANSLATIONS__[] = {
+  QT_TRANSLATE_NOOP3("HttpServer", "Downloaded", "Is the file downloaded or not?")
+};
+
+#endif // EXTRA_TRANSLATIONS_H

src/webui/httpconnection.cpp

@@ -1,5 +1,6 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
  * Copyright (C) 2006  Ishan Arora and Christophe Dumez
  *
  * This program is free software; you can redistribute it and/or
@@ -24,661 +25,84 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
-
-#include "httpconnection.h"
-#include "httpserver.h"
-#include "httprequestheader.h"
-#include "httpresponseheader.h"
-#include "preferences.h"
-#include "btjson.h"
-#include "prefjson.h"
-#include "qbtsession.h"
-#include "misc.h"
-#include "fs_utils.h"
-#ifndef DISABLE_GUI
-#include "iconprovider.h"
-#endif
 #include <QTcpSocket>
-#include <QDateTime>
-#include <QStringList>
-#include <QFile>
 #include <QDebug>
-#include <QRegExp>
-#include <QTemporaryFile>
-#include <queue>
-#include <vector>
-
-#include <libtorrent/session.hpp>
-
-using namespace libtorrent;
+#include "httptypes.h"
+#include "httpserver.h"
+#include "httprequestparser.h"
+#include "httpresponsegenerator.h"
+#include "webapplication.h"
+#include "requesthandler.h"
+#include "httpconnection.h"
 
-HttpConnection::HttpConnection(QTcpSocket *socket, HttpServer *parent)
-  : QObject(parent), m_socket(socket), m_httpserver(parent)
+HttpConnection::HttpConnection(QTcpSocket *socket, HttpServer *httpserver)
+  : QObject(httpserver), m_socket(socket)
 {
   m_socket->setParent(this);
   connect(m_socket, SIGNAL(readyRead()), SLOT(read()));
   connect(m_socket, SIGNAL(disconnected()), SLOT(deleteLater()));
 }
 
-HttpConnection::~HttpConnection() {
+HttpConnection::~HttpConnection()
+{
   delete m_socket;
 }
 
-void HttpConnection::processDownloadedFile(const QString &url,
-                                           const QString &file_path) {
-  qDebug("URL %s successfully downloaded !", qPrintable(url));
-  emit torrentReadyToBeDownloaded(file_path, false, url, false);
-}
-
-void HttpConnection::handleDownloadFailure(const QString& url,
-                                           const QString& reason) {
-  std::cerr << "Could not download " << qPrintable(url) << ", reason: "
-            << qPrintable(reason) << std::endl;
-}
-
 void HttpConnection::read()
 {
   m_receivedData.append(m_socket->readAll());
 
-  // Parse HTTP request header
-  const int header_end = m_receivedData.indexOf("\r\n\r\n");
-  if (header_end < 0) {
-    qDebug() << "Partial request: \n" << m_receivedData;
+  HttpRequest request;
+  HttpRequestParser::ErrorCode err = HttpRequestParser::parse(m_receivedData, request);
+  switch (err)
+  {
+  case HttpRequestParser::IncompleteRequest:
     // Partial request waiting for the rest
-    return;
-  }
-
-  const QByteArray header = m_receivedData.left(header_end);
-  m_parser.writeHeader(header);
-  if (m_parser.isError()) {
-    qWarning() << Q_FUNC_INFO << "header parsing error";
-    m_receivedData.clear();
-    m_generator.setStatusLine(400, "Bad Request");
-    m_generator.setContentEncoding(m_parser.acceptsEncoding());
-    write();
-    return;
-  }
-
-  // Parse HTTP request message
-  if (m_parser.header().hasContentLength())  {
-    const int expected_length = m_parser.header().contentLength();
-    QByteArray message = m_receivedData.mid(header_end + 4, expected_length);
-
-    if (expected_length > 10000000 /* ~10MB */) {
-      qWarning() << "Bad request: message too long";
-      m_generator.setStatusLine(400, "Bad Request");
-      m_generator.setContentEncoding(m_parser.acceptsEncoding());
-      m_receivedData.clear();
-      write();
-      return;
-    }
-
-    if (message.length() < expected_length) {
-      // Message too short, waiting for the rest
-      qDebug() << "Partial message:\n" << message;
-      return;
-    }
-
-    m_parser.writeMessage(message);
-    m_receivedData = m_receivedData.mid(header_end + 4 + expected_length);
-  } else {
-    m_receivedData.clear();
-  }
-
-  if (m_parser.isError()) {
-    qWarning() << Q_FUNC_INFO << "message parsing error";
-    m_generator.setStatusLine(400, "Bad Request");
-    m_generator.setContentEncoding(m_parser.acceptsEncoding());
-    write();
-  } else {
-    respond();
-  }
-}
-
-void HttpConnection::write()
+    break;
+  case HttpRequestParser::BadRequest:
+    write(HttpResponse(400, "Bad Request"));
+    break;
+  case HttpRequestParser::NoError:
+    HttpEnvironment env;
+    env.clientAddress = m_socket->peerAddress();
+    HttpResponse response = RequestHandler(request, env, WebApplication::instance()).run();
+    if (acceptsGzipEncoding(request.headers["accept-encoding"]))
+      response.headers[HEADER_CONTENT_ENCODING] = "gzip";
+    write(response);
+    break;
+  }
+}
+
+void HttpConnection::write(const HttpResponse& response)
 {
-  m_socket->write(m_generator.toByteArray());
+  m_socket->write(HttpResponseGenerator::generate(response));
   m_socket->disconnectFromHost();
 }
 
-void HttpConnection::translateDocument(QString& data) {
-  static QRegExp regex(QString::fromUtf8("_\\(([\\w\\s?!:\\/\\(\\),%µ&\\-\\.]+)\\)"));
-  static QRegExp mnemonic("\\(?&([a-zA-Z]?\\))?");
-  const std::string contexts[] = {"TransferListFiltersWidget", "TransferListWidget",
-                                  "PropertiesWidget", "MainWindow", "HttpServer",
-                                  "confirmDeletionDlg", "TrackerList", "TorrentFilesModel",
-                                  "options_imp", "Preferences", "TrackersAdditionDlg",
-                                  "ScanFoldersModel", "PropTabBar", "TorrentModel",
-                                  "downloadFromURL", "misc"};
-  const size_t context_count = sizeof(contexts)/sizeof(contexts[0]);
-  int i = 0;
-  bool found = true;
-
-  const QString locale = Preferences::instance()->getLocale();
-  bool isTranslationNeeded = !locale.startsWith("en") || locale.startsWith("en_AU") || locale.startsWith("en_GB");
-
-  while(i < data.size() && found) {
-    i = regex.indexIn(data, i);
-    if (i >= 0) {
-      //qDebug("Found translatable string: %s", regex.cap(1).toUtf8().data());
-      QByteArray word = regex.cap(1).toUtf8();
-
-      QString translation = word;
-      if (isTranslationNeeded) {
-        size_t context_index = 0;
-        while(context_index < context_count && translation == word) {
-#if (QT_VERSION < QT_VERSION_CHECK(5, 0, 0))
-          translation = qApp->translate(contexts[context_index].c_str(), word.constData(), 0, QCoreApplication::UnicodeUTF8, 1);
-#else
-          translation = qApp->translate(contexts[context_index].c_str(), word.constData(), 0, 1);
-#endif
-          ++context_index;
-        }
-      }
-      // Remove keyboard shortcuts
-      translation.replace(mnemonic, "");
-
-      data.replace(i, regex.matchedLength(), translation);
-      i += translation.length();
-    } else {
-        found = false; // no more translatable strings
-    }
-  }
-}
-
-void HttpConnection::respond() {
-  if ((m_socket->peerAddress() != QHostAddress::LocalHost
-      && m_socket->peerAddress() != QHostAddress::LocalHostIPv6)
-     || m_httpserver->isLocalAuthEnabled()) {
-    // Authentication
-    const QString peer_ip = m_socket->peerAddress().toString();
-    const int nb_fail = m_httpserver->NbFailedAttemptsForIp(peer_ip);
-    if (nb_fail >= MAX_AUTH_FAILED_ATTEMPTS) {
-      m_generator.setStatusLine(403, "Forbidden");
-      m_generator.setMessage(tr("Your IP address has been banned after too many failed authentication attempts."));
-      m_generator.setContentEncoding(m_parser.acceptsEncoding());
-      write();
-      return;
-    }
-    QString auth = m_parser.header().value("Authorization");
-    if (auth.isEmpty()) {
-      // Return unauthorized header
-      qDebug("Auth is Empty...");
-      m_generator.setStatusLine(401, "Unauthorized");
-      m_generator.setValue("WWW-Authenticate",  "Digest realm=\""+QString(QBT_REALM)+"\", nonce=\""+m_httpserver->generateNonce()+"\", opaque=\""+m_httpserver->generateNonce()+"\", stale=\"false\", algorithm=\"MD5\", qop=\"auth\"");
-      m_generator.setContentEncoding(m_parser.acceptsEncoding());
-      write();
-      return;
-    }
-    //qDebug("Auth: %s", qPrintable(auth.split(" ").first()));
-    if (QString::compare(auth.split(" ").first(), "Digest", Qt::CaseInsensitive) != 0
-        || !m_httpserver->isAuthorized(auth.toUtf8(), m_parser.header().method())) {
-      // Update failed attempt counter
-      m_httpserver->increaseNbFailedAttemptsForIp(peer_ip);
-      qDebug("client IP: %s (%d failed attempts)", qPrintable(peer_ip), nb_fail);
-      // Return unauthorized header
-      m_generator.setStatusLine(401, "Unauthorized");
-      m_generator.setValue("WWW-Authenticate",  "Digest realm=\""+QString(QBT_REALM)+"\", nonce=\""+m_httpserver->generateNonce()+"\", opaque=\""+m_httpserver->generateNonce()+"\", stale=\"false\", algorithm=\"MD5\", qop=\"auth\"");
-      m_generator.setContentEncoding(m_parser.acceptsEncoding());
-      write();
-      return;
-    }
-    // Client successfully authenticated, reset number of failed attempts
-    m_httpserver->resetNbFailedAttemptsForIp(peer_ip);
-  }
-  QString url  = m_parser.url();
-  // Favicon
-  if (url.endsWith("favicon.ico")) {
-    qDebug("Returning favicon");
-    QFile favicon(":/Icons/skin/qbittorrent16.png");
-    if (favicon.open(QIODevice::ReadOnly)) {
-      const QByteArray data = favicon.readAll();
-      favicon.close();
-      m_generator.setStatusLine(200, "OK");
-      m_generator.setContentTypeByExt("png");
-      m_generator.setMessage(data);
-      m_generator.setContentEncoding(m_parser.acceptsEncoding());
-      write();
-    } else {
-      respondNotFound();
-    }
-    return;
-  }
-
-  QStringList list = url.split('/', QString::SkipEmptyParts);
-  if (list.contains(".") || list.contains("..")) {
-    respondNotFound();
-    return;
-  }
+bool HttpConnection::acceptsGzipEncoding(const QString& encoding)
+{
+  int pos = encoding.indexOf("gzip", 0, Qt::CaseInsensitive);
+  if (pos == -1)
+    return false;
 
-  if (list.isEmpty())
-    list.append("index.html");
+  // Let's see if there's a qvalue of 0.0 following
+  if (encoding[pos + 4] != ';') //there isn't, so it accepts gzip anyway
+    return true;
 
-  if (list.size() >= 2) {
-    if (list[0] == "json") {
-      if (list[1] == "torrents") {
-        respondTorrentsJson();
-        return;
-      }
-      if (list.size() > 2) {
-        if (list[1] == "propertiesGeneral") {
-          const QString& hash = list[2];
-          respondGenPropertiesJson(hash);
-          return;
-        }
-        if (list[1] == "propertiesTrackers") {
-          const QString& hash = list[2];
-          respondTrackersPropertiesJson(hash);
-          return;
-        }
-        if (list[1] == "propertiesFiles") {
-          const QString& hash = list[2];
-          respondFilesPropertiesJson(hash);
-          return;
-        }
-      } else {
-        if (list[1] == "preferences") {
-          respondPreferencesJson();
-          return;
-        } else {
-          if (list[1] == "transferInfo") {
-            respondGlobalTransferInfoJson();
-            return;
-          }
-        }
-      }
-    }
-    if (list[0] == "command") {
-      const QString& command = list[1];
-      if (command == "shutdown") {
-        qDebug() << "Shutdown request from Web UI";
-        // Special case handling for shutdown, we
-        // need to reply to the Web UI before
-        // actually shutting down.
-        m_generator.setStatusLine(200, "OK");
-        m_generator.setContentEncoding(m_parser.acceptsEncoding());
-        write();
-        qApp->processEvents();
-        // Exit application
-        qApp->exit();
-      } else {
-        respondCommand(command);
-        m_generator.setStatusLine(200, "OK");
-        m_generator.setContentEncoding(m_parser.acceptsEncoding());
-        write();
-      }
-      return;
-    }
-  }
+  //So let's find = and the next comma
+  pos = encoding.indexOf("=", pos + 4, Qt::CaseInsensitive);
+  int comma_pos = encoding.indexOf(",", pos, Qt::CaseInsensitive);
 
-  // Icons from theme
-  //qDebug() << "list[0]" << list[0];
-  if (list[0] == "theme" && list.size() == 2) {
-#ifdef DISABLE_GUI
-    url = ":/Icons/oxygen/"+list[1]+".png";
-#else
-    url = IconProvider::instance()->getIconPath(list[1]);
-#endif
-    qDebug() << "There icon:" << url;
-  } else {
-    if (list[0] == "images") {
-      list[0] = "Icons";
-    } else {
-      if (list.last().endsWith(".html"))
-        list.prepend("html");
-      list.prepend("webui");
-    }
-    url = ":/" + list.join("/");
-  }
-  QFile file(url);
-  if (!file.open(QIODevice::ReadOnly)) {
-    qDebug("File %s was not found!", qPrintable(url));
-    respondNotFound();
-    return;
-  }
-  QString ext = list.last();
-  int index = ext.lastIndexOf('.') + 1;
-  if (index > 0)
-    ext.remove(0, index);
+  QString value;
+  if (comma_pos == -1)
+    value = encoding.mid(pos + 1, comma_pos);
   else
-    ext.clear();
-  QByteArray data = file.readAll();
-  file.close();
-
-  // Translate the page
-  if (ext == "html" || (ext == "js" && !list.last().startsWith("excanvas"))) {
-    QString dataStr = QString::fromUtf8(data.constData());
-    translateDocument(dataStr);
-    if (url.endsWith("about.html")) {
-      dataStr.replace("${VERSION}", VERSION);
-    }
-    data = dataStr.toUtf8();
-  }
-  m_generator.setStatusLine(200, "OK");
-  m_generator.setContentTypeByExt(ext);
-  m_generator.setMessage(data);
-  m_generator.setContentEncoding(m_parser.acceptsEncoding());
-  write();
-}
-
-void HttpConnection::respondNotFound() {
-  m_generator.setStatusLine(404, "File not found");
-  m_generator.setContentEncoding(m_parser.acceptsEncoding());
-  write();
-}
+    value = encoding.mid(pos + 1, comma_pos - (pos + 1));
 
-void HttpConnection::respondTorrentsJson() {
-  m_generator.setStatusLine(200, "OK");
-  m_generator.setContentTypeByExt("js");
-  m_generator.setMessage(btjson::getTorrents());
-  m_generator.setContentEncoding(m_parser.acceptsEncoding());
-  write();
-}
-
-void HttpConnection::respondGenPropertiesJson(const QString& hash) {
-  m_generator.setStatusLine(200, "OK");
-  m_generator.setContentTypeByExt("js");
-  m_generator.setMessage(btjson::getPropertiesForTorrent(hash));
-  m_generator.setContentEncoding(m_parser.acceptsEncoding());
-  write();
-}
-
-void HttpConnection::respondTrackersPropertiesJson(const QString& hash) {
-  m_generator.setStatusLine(200, "OK");
-  m_generator.setContentTypeByExt("js");
-  m_generator.setMessage(btjson::getTrackersForTorrent(hash));
-  m_generator.setContentEncoding(m_parser.acceptsEncoding());
-  write();
-}
-
-void HttpConnection::respondFilesPropertiesJson(const QString& hash) {
-  m_generator.setStatusLine(200, "OK");
-  m_generator.setContentTypeByExt("js");
-  m_generator.setMessage(btjson::getFilesForTorrent(hash));
-  m_generator.setContentEncoding(m_parser.acceptsEncoding());
-  write();
-}
-
-void HttpConnection::respondPreferencesJson() {
-  m_generator.setStatusLine(200, "OK");
-  m_generator.setContentTypeByExt("js");
-  m_generator.setMessage(prefjson::getPreferences());
-  m_generator.setContentEncoding(m_parser.acceptsEncoding());
-  write();
-}
+  if (value.toDouble() == 0.0)
+    return false;
 
-void HttpConnection::respondGlobalTransferInfoJson() {
-  m_generator.setStatusLine(200, "OK");
-  m_generator.setContentTypeByExt("js");
-  m_generator.setMessage(btjson::getTransferInfo());
-  m_generator.setContentEncoding(m_parser.acceptsEncoding());
-  write();
-}
-
-void HttpConnection::respondCommand(const QString& command) {
-  qDebug() << Q_FUNC_INFO << command;
-  if (command == "download") {
-    QString urls = m_parser.post("urls");
-    QStringList list = urls.split('\n');
-    foreach (QString url, list) {
-      url = url.trimmed();
-      if (!url.isEmpty()) {
-        if (url.startsWith("bc://bt/", Qt::CaseInsensitive)) {
-          qDebug("Converting bc link to magnet link");
-          url = misc::bcLinkToMagnet(url);
-        }
-        if (url.startsWith("magnet:", Qt::CaseInsensitive)) {
-          emit MagnetReadyToBeDownloaded(url);
-        } else {
-          qDebug("Downloading url: %s", qPrintable(url));
-          emit UrlReadyToBeDownloaded(url);
-        }
-      }
-    }
-    return;
-  }
-
-  if (command == "addTrackers") {
-    QString hash = m_parser.post("hash");
-    if (!hash.isEmpty()) {
-      QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
-      if (h.is_valid() && h.has_metadata()) {
-        QString urls = m_parser.post("urls");
-        QStringList list = urls.split('\n');
-        foreach (const QString& url, list) {
-          announce_entry e(url.toStdString());
-          h.add_tracker(e);
-        }
-      }
-    }
-    return;
-  }
-  if (command == "upload") {
-    qDebug() << Q_FUNC_INFO << "upload";
-    const QList<QByteArray>& torrents = m_parser.torrents();
-    foreach(const QByteArray& torrentContent, torrents) {
-      // Get a unique filename
-      QTemporaryFile *tmpfile = new QTemporaryFile(QDir::temp().absoluteFilePath("qBT-XXXXXX.torrent"));
-      tmpfile->setAutoRemove(false);
-      if (tmpfile->open()) {
-        QString filePath = tmpfile->fileName();
-        tmpfile->write(torrentContent);
-        tmpfile->close();
-        // XXX: tmpfile needs to be deleted on Windows before using the file
-        // or it will complain that the file is used by another process.
-        delete tmpfile;
-        emit torrentReadyToBeDownloaded(filePath, false, QString(), false);
-        // Clean up
-        fsutils::forceRemove(filePath);
-      } else {
-        std::cerr << "I/O Error: Could not create temporary file" << std::endl;
-        delete tmpfile;
-        return;
-      }
-    }
-    // Prepare response
-    m_generator.setStatusLine(200, "OK");
-    m_generator.setContentTypeByExt("html");
-    m_generator.setMessage(QString("<script type=\"text/javascript\">window.parent.hideAll();</script>"));
-    m_generator.setContentEncoding(m_parser.acceptsEncoding());
-    write();
-    return;
-  }
-  if (command == "resumeall") {
-    emit resumeAllTorrents();
-    return;
-  }
-  if (command == "pauseall") {
-    emit pauseAllTorrents();
-    return;
-  }
-  if (command == "resume") {
-    emit resumeTorrent(m_parser.post("hash"));
-    return;
-  }
-  if (command == "setPreferences") {
-    prefjson::setPreferences(m_parser.post("json"));
-    return;
-  }
-  if (command == "setFilePrio") {
-    QString hash = m_parser.post("hash");
-    int file_id = m_parser.post("id").toInt();
-    int priority = m_parser.post("priority").toInt();
-    QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
-    if (h.is_valid() && h.has_metadata()) {
-      h.file_priority(file_id, priority);
-    }
-    return;
-  }
-  if (command == "getGlobalUpLimit") {
-    m_generator.setStatusLine(200, "OK");
-    m_generator.setContentTypeByExt("html");
-    m_generator.setMessage(QByteArray::number(QBtSession::instance()->getSession()->settings().upload_rate_limit));
-    m_generator.setContentEncoding(m_parser.acceptsEncoding());
-    write();
-    return;
-  }
-  if (command == "getGlobalDlLimit") {
-    m_generator.setStatusLine(200, "OK");
-    m_generator.setContentTypeByExt("html");
-    m_generator.setMessage(QByteArray::number(QBtSession::instance()->getSession()->settings().download_rate_limit));
-    m_generator.setContentEncoding(m_parser.acceptsEncoding());
-    write();
-    return;
-  }
-  if (command == "getTorrentUpLimit") {
-    QString hash = m_parser.post("hash");
-    QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
-    if (h.is_valid()) {
-      m_generator.setStatusLine(200, "OK");
-      m_generator.setContentTypeByExt("html");
-      m_generator.setMessage(QByteArray::number(h.upload_limit()));
-      m_generator.setContentEncoding(m_parser.acceptsEncoding());
-      write();
-    }
-    return;
-  }
-  if (command == "getTorrentDlLimit") {
-    QString hash = m_parser.post("hash");
-    QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
-    if (h.is_valid()) {
-      m_generator.setStatusLine(200, "OK");
-      m_generator.setContentTypeByExt("html");
-      m_generator.setMessage(QByteArray::number(h.download_limit()));
-      m_generator.setContentEncoding(m_parser.acceptsEncoding());
-      write();
-    }
-    return;
-  }
-  if (command == "setTorrentUpLimit") {
-    QString hash = m_parser.post("hash");
-    qlonglong limit = m_parser.post("limit").toLongLong();
-    if (limit == 0) limit = -1;
-    QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
-    if (h.is_valid()) {
-      h.set_upload_limit(limit);
-    }
-    return;
-  }
-  if (command == "setTorrentDlLimit") {
-    QString hash = m_parser.post("hash");
-    qlonglong limit = m_parser.post("limit").toLongLong();
-    if (limit == 0) limit = -1;
-    QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
-    if (h.is_valid()) {
-      h.set_download_limit(limit);
-    }
-    return;
-  }
-  if (command == "setGlobalUpLimit") {
-    qlonglong limit = m_parser.post("limit").toLongLong();
-    if (limit == 0) limit = -1;
-    QBtSession::instance()->setUploadRateLimit(limit);
-    Preferences::instance()->setGlobalUploadLimit(limit/1024.);
-    return;
-  }
-  if (command == "setGlobalDlLimit") {
-    qlonglong limit = m_parser.post("limit").toLongLong();
-    if (limit == 0) limit = -1;
-    QBtSession::instance()->setDownloadRateLimit(limit);
-    Preferences::instance()->setGlobalDownloadLimit(limit/1024.);
-    return;
-  }
-  if (command == "pause") {
-    emit pauseTorrent(m_parser.post("hash"));
-    return;
-  }
-  if (command == "delete") {
-    QStringList hashes = m_parser.post("hashes").split("|");
-    foreach (const QString &hash, hashes) {
-      emit deleteTorrent(hash, false);
-    }
-    return;
-  }
-  if (command == "deletePerm") {
-    QStringList hashes = m_parser.post("hashes").split("|");
-    foreach (const QString &hash, hashes) {
-      emit deleteTorrent(hash, true);
-    }
-    return;
-  }
-  if (command == "increasePrio") {
-    increaseTorrentsPriority(m_parser.post("hashes").split("|"));
-    return;
-  }
-  if (command == "decreasePrio") {
-    decreaseTorrentsPriority(m_parser.post("hashes").split("|"));
-    return;
-  }
-  if (command == "topPrio") {
-    foreach (const QString &hash, m_parser.post("hashes").split("|")) {
-      QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
-      if (h.is_valid()) h.queue_position_top();
-    }
-    return;
-  }
-  if (command == "bottomPrio") {
-    foreach (const QString &hash, m_parser.post("hashes").split("|")) {
-      QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
-      if (h.is_valid()) h.queue_position_bottom();
-    }
-    return;
-  }
-  if (command == "recheck") {
-    QBtSession::instance()->recheckTorrent(m_parser.post("hash"));
-    return;
-  }
-}
-
-void HttpConnection::decreaseTorrentsPriority(const QStringList &hashes) {
-  qDebug() << Q_FUNC_INFO << hashes;
-  std::priority_queue<QPair<int, QTorrentHandle>,
-      std::vector<QPair<int, QTorrentHandle> >,
-      std::less<QPair<int, QTorrentHandle> > > torrent_queue;
-  // Sort torrents by priority
-  foreach (const QString &hash, hashes) {
-    try {
-      QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
-      if (!h.is_seed()) {
-        torrent_queue.push(qMakePair(h.queue_position(), h));
-      }
-    }catch(invalid_handle&) {}
-  }
-  // Decrease torrents priority (starting with the ones with lowest priority)
-  while(!torrent_queue.empty()) {
-    QTorrentHandle h = torrent_queue.top().second;
-    try {
-      h.queue_position_down();
-    } catch(invalid_handle& h) {}
-    torrent_queue.pop();
-  }
-}
-
-void HttpConnection::increaseTorrentsPriority(const QStringList &hashes)
-{
-  qDebug() << Q_FUNC_INFO << hashes;
-  std::priority_queue<QPair<int, QTorrentHandle>,
-      std::vector<QPair<int, QTorrentHandle> >,
-      std::greater<QPair<int, QTorrentHandle> > > torrent_queue;
-  // Sort torrents by priority
-  foreach (const QString &hash, hashes) {
-    try {
-      QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
-      if (!h.is_seed()) {
-        torrent_queue.push(qMakePair(h.queue_position(), h));
-      }
-    }catch(invalid_handle&) {}
-  }
-  // Increase torrents priority (starting with the ones with highest priority)
-  while(!torrent_queue.empty()) {
-    QTorrentHandle h = torrent_queue.top().second;
-    try {
-      h.queue_position_up();
-    } catch(invalid_handle& h) {}
-    torrent_queue.pop();
-  }
+  return true;
 }

src/webui/httpconnection.h

@@ -1,5 +1,6 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
  * Copyright (C) 2006  Ishan Arora and Christophe Dumez
  *
  * This program is free software; you can redistribute it and/or
@@ -24,17 +25,14 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 
 #ifndef HTTPCONNECTION_H
 #define HTTPCONNECTION_H
 
-#include "httprequestparser.h"
-#include "httpresponsegenerator.h"
 #include <QObject>
+#include "httptypes.h"
 
 class HttpServer;
 
@@ -48,46 +46,18 @@ class HttpConnection : public QObject
   Q_DISABLE_COPY(HttpConnection)
 
 public:
-  HttpConnection(QTcpSocket *m_socket, HttpServer *m_httpserver);
+  HttpConnection(QTcpSocket* socket, HttpServer* httpserver);
   ~HttpConnection();
-  void translateDocument(QString& data);
-
-protected slots:
-  void write();
-  void respond();
-  void respondTorrentsJson();
-  void respondGenPropertiesJson(const QString& hash);
-  void respondTrackersPropertiesJson(const QString& hash);
-  void respondFilesPropertiesJson(const QString& hash);
-  void respondPreferencesJson();
-  void respondGlobalTransferInfoJson();
-  void respondCommand(const QString& command);
-  void respondNotFound();
-  void processDownloadedFile(const QString& url, const QString& file_path);
-  void handleDownloadFailure(const QString& url, const QString& reason);
-  void decreaseTorrentsPriority(const QStringList& hashes);
-  void increaseTorrentsPriority(const QStringList& hashes);
 
 private slots:
   void read();
 
-signals:
-  void UrlReadyToBeDownloaded(const QString& url);
-  void MagnetReadyToBeDownloaded(const QString& uri);
-  void torrentReadyToBeDownloaded(const QString&, bool, const QString&, bool);
-  void deleteTorrent(const QString& hash, bool permanently);
-  void resumeTorrent(const QString& hash);
-  void pauseTorrent(const QString& hash);
-  void increasePrioTorrent(const QString& hash);
-  void decreasePrioTorrent(const QString& hash);
-  void resumeAllTorrents();
-  void pauseAllTorrents();
-
 private:
+  void write(const HttpResponse& response);
+
+  static bool acceptsGzipEncoding(const QString& encoding);
+
   QTcpSocket *m_socket;
-  HttpServer *m_httpserver;
-  HttpRequestParser m_parser;
-  HttpResponseGenerator m_generator;
   QByteArray m_receivedData;
 };
 

src/webui/httpserver.cpp

@@ -1,6 +1,8 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
- * Copyright (C) 2006  Ishan Arora and Christophe Dumez
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
+ * Copyright (C) 2006  Ishan Arora <ishan@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -24,132 +26,38 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
-
-#include "httpserver.h"
-#include "httpconnection.h"
-#include "qbtsession.h"
-#include <QCryptographicHash>
-#include <QTime>
-#include <QRegExp>
-#include <QTimer>
-
 #ifndef QT_NO_OPENSSL
 #include <QSslSocket>
 #else
 #include <QTcpSocket>
 #endif
+#include "httpconnection.h"
+#include "httpserver.h"
 
-using namespace libtorrent;
-
-const int BAN_TIME = 3600000; // 1 hour
-
-class UnbanTimer: public QTimer {
-public:
-  UnbanTimer(const QString& peer_ip, QObject *parent): QTimer(parent),
-    m_peerIp(peer_ip) {
-    setSingleShot(true);
-    setInterval(BAN_TIME);
-  }
-
-  inline const QString& peerIp() const { return m_peerIp; }
-
-private:
-  QString m_peerIp;
-};
-
-void HttpServer::UnbanTimerEvent() {
-  UnbanTimer* ubantimer = static_cast<UnbanTimer*>(sender());
-  qDebug("Ban period has expired for %s", qPrintable(ubantimer->peerIp()));
-  m_clientFailedAttempts.remove(ubantimer->peerIp());
-  ubantimer->deleteLater();
-}
-
-int HttpServer::NbFailedAttemptsForIp(const QString& ip) const {
-  return m_clientFailedAttempts.value(ip, 0);
-}
-
-void HttpServer::increaseNbFailedAttemptsForIp(const QString& ip) {
-  const int nb_fail = m_clientFailedAttempts.value(ip, 0) + 1;
-  m_clientFailedAttempts.insert(ip, nb_fail);
-  if (nb_fail == MAX_AUTH_FAILED_ATTEMPTS) {
-    // Max number of failed attempts reached
-    // Start ban period
-    UnbanTimer* ubantimer = new UnbanTimer(ip, this);
-    connect(ubantimer, SIGNAL(timeout()), SLOT(UnbanTimerEvent()));
-    ubantimer->start();
-  }
-}
-
-void HttpServer::resetNbFailedAttemptsForIp(const QString& ip) {
-  m_clientFailedAttempts.remove(ip);
-}
-
-HttpServer::HttpServer(QObject* parent) : QTcpServer(parent)
-{
-
-  const Preferences* const pref = Preferences::instance();
-
-  m_username = pref->getWebUiUsername().toUtf8();
-  m_passwordSha1 = pref->getWebUiPassword().toUtf8();
-  m_localAuthEnabled = pref->isWebUiLocalAuthEnabled();
-
-  // HTTPS-related
+HttpServer::HttpServer(QObject* parent)
+  : QTcpServer(parent)
 #ifndef QT_NO_OPENSSL
-  m_https = pref->isWebUiHttpsEnabled();
-  if (m_https) {
-    m_certificate = QSslCertificate(pref->getWebUiHttpsCertificate());
-    m_key = QSslKey(pref->getWebUiHttpsKey(), QSsl::Rsa);
-  }
+    , m_https(false)
 #endif
-
-  // Additional translations for Web UI
-  QString a = tr("File");
-  a = tr("Edit");
-  a = tr("Help");
-  a = tr("Download Torrents from their URL or Magnet link");
-  a = tr("Only one link per line");
-  a = tr("Download local torrent");
-  a = tr("Torrent files were correctly added to download list.");
-  a = tr("Point to torrent file");
-  a = tr("Download");
-  a = tr("Are you sure you want to delete the selected torrents from the transfer list and hard disk?");
-  a = tr("Download rate limit must be greater than 0 or disabled.");
-  a = tr("Upload rate limit must be greater than 0 or disabled.");
-  a = tr("Maximum number of connections limit must be greater than 0 or disabled.");
-  a = tr("Maximum number of connections per torrent limit must be greater than 0 or disabled.");
-  a = tr("Maximum number of upload slots per torrent limit must be greater than 0 or disabled.");
-  a = tr("Unable to save program preferences, qBittorrent is probably unreachable.");
-  a = tr("Language");
-  a = tr("Downloaded", "Is the file downloaded or not?");
-  a = tr("The port used for incoming connections must be greater than 1024 and less than 65535.");
-  a = tr("The port used for the Web UI must be greater than 1024 and less than 65535.");
-  a = tr("The Web UI username must be at least 3 characters long.");
-  a = tr("The Web UI password must be at least 3 characters long.");
-  a = tr("Save");
-  a = tr("qBittorrent client is not reachable");
-  a = tr("HTTP Server");
-  a = tr("The following parameters are supported:");
-  a = tr("Torrent path");
-  a = tr("Torrent name");
-  a = tr("qBittorrent has been shutdown.");
+{
 }
 
-HttpServer::~HttpServer() {
+HttpServer::~HttpServer()
+{
 }
 
 #ifndef QT_NO_OPENSSL
-void HttpServer::enableHttps(const QSslCertificate &certificate,
-                             const QSslKey &key) {
+void HttpServer::enableHttps(const QSslCertificate &certificate, const QSslKey &key)
+{
   m_certificate = certificate;
   m_key = key;
   m_https = true;
 }
 
-void HttpServer::disableHttps() {
+void HttpServer::disableHttps()
+{
   m_https = false;
   m_certificate.clear();
   m_key.clear();
@@ -169,143 +77,21 @@ void HttpServer::incomingConnection(int socketDescriptor)
   else
 #endif
     serverSocket = new QTcpSocket(this);
-  if (serverSocket->setSocketDescriptor(socketDescriptor)) {
+  if (serverSocket->setSocketDescriptor(socketDescriptor))
+  {
 #ifndef QT_NO_OPENSSL
-    if (m_https) {
+    if (m_https)
+    {
       static_cast<QSslSocket*>(serverSocket)->setProtocol(QSsl::AnyProtocol);
       static_cast<QSslSocket*>(serverSocket)->setPrivateKey(m_key);
       static_cast<QSslSocket*>(serverSocket)->setLocalCertificate(m_certificate);
       static_cast<QSslSocket*>(serverSocket)->startServerEncryption();
     }
 #endif
-    handleNewConnection(serverSocket);
-  } else {
-    serverSocket->deleteLater();
-  }
-}
-
-void HttpServer::handleNewConnection(QTcpSocket *socket)
-{
-  HttpConnection *connection = new HttpConnection(socket, this);
-  //connect connection to QBtSession::instance()
-  connect(connection, SIGNAL(UrlReadyToBeDownloaded(QString)), QBtSession::instance(), SLOT(downloadUrlAndSkipDialog(QString)));
-  connect(connection, SIGNAL(MagnetReadyToBeDownloaded(QString)), QBtSession::instance(), SLOT(addMagnetSkipAddDlg(QString)));
-  connect(connection, SIGNAL(torrentReadyToBeDownloaded(QString, bool, QString, bool)), QBtSession::instance(), SLOT(addTorrent(QString, bool, QString, bool)));
-  connect(connection, SIGNAL(deleteTorrent(QString, bool)), QBtSession::instance(), SLOT(deleteTorrent(QString, bool)));
-  connect(connection, SIGNAL(pauseTorrent(QString)), QBtSession::instance(), SLOT(pauseTorrent(QString)));
-  connect(connection, SIGNAL(resumeTorrent(QString)), QBtSession::instance(), SLOT(resumeTorrent(QString)));
-  connect(connection, SIGNAL(pauseAllTorrents()), QBtSession::instance(), SLOT(pauseAllTorrents()));
-  connect(connection, SIGNAL(resumeAllTorrents()), QBtSession::instance(), SLOT(resumeAllTorrents()));
-}
-
-QString HttpServer::generateNonce() const {
-  QCryptographicHash md5(QCryptographicHash::Md5);
-  md5.addData(QTime::currentTime().toString("hhmmsszzz").toUtf8());
-  md5.addData(":");
-  md5.addData(QBT_REALM);
-  return md5.result().toHex();
-}
-
-void HttpServer::setAuthorization(const QString& username,
-                                  const QString& password_sha1) {
-  m_username = username.toUtf8();
-  m_passwordSha1 = password_sha1.toUtf8();
-}
-
-// Parse HTTP AUTH string
-// http://tools.ietf.org/html/rfc2617
-bool HttpServer::isAuthorized(const QByteArray& auth,
-                              const QString& method) const {
-  //qDebug("AUTH string is %s", auth.data());
-  // Get user name
-  QRegExp regex_user(".*username=\"([^\"]+)\".*"); // Must be a quoted string
-  if (regex_user.indexIn(auth) < 0) return false;
-  QString prop_user = regex_user.cap(1);
-  //qDebug("AUTH: Proposed username is %s, real username is %s", qPrintable(prop_user), username.data());
-  if (prop_user != m_username) {
-    // User name is invalid, we can reject already
-    qDebug("AUTH-PROB: Username is invalid");
-    return false;
+    new HttpConnection(serverSocket, this);
   }
-  // Get realm
-  QRegExp regex_realm(".*realm=\"([^\"]+)\".*"); // Must be a quoted string
-  if (regex_realm.indexIn(auth) < 0) {
-    qDebug("AUTH-PROB: Missing realm");
-    return false;
-  }
-  QByteArray prop_realm = regex_realm.cap(1).toUtf8();
-  if (prop_realm != QBT_REALM) {
-    qDebug("AUTH-PROB: Wrong realm");
-    return false;
-  }
-  // get nonce
-  QRegExp regex_nonce(".*nonce=[\"]?([\\w=]+)[\"]?.*");
-  if (regex_nonce.indexIn(auth) < 0) {
-    qDebug("AUTH-PROB: missing nonce");
-    return false;
-  }
-  QByteArray prop_nonce = regex_nonce.cap(1).toUtf8();
-  //qDebug("prop nonce is: %s", prop_nonce.data());
-  // get uri
-  QRegExp regex_uri(".*uri=\"([^\"]+)\".*");
-  if (regex_uri.indexIn(auth) < 0) {
-    qDebug("AUTH-PROB: Missing uri");
-    return false;
-  }
-  QByteArray prop_uri = regex_uri.cap(1).toUtf8();
-  //qDebug("prop uri is: %s", prop_uri.data());
-  // get response
-  QRegExp regex_response(".*response=[\"]?([\\w=]+)[\"]?.*");
-  if (regex_response.indexIn(auth) < 0) {
-    qDebug("AUTH-PROB: Missing response");
-    return false;
-  }
-  QByteArray prop_response = regex_response.cap(1).toUtf8();
-  //qDebug("prop response is: %s", prop_response.data());
-  // Compute correct reponse
-  QCryptographicHash md5_ha2(QCryptographicHash::Md5);
-  md5_ha2.addData(method.toUtf8() + ":" + prop_uri);
-  QByteArray ha2 = md5_ha2.result().toHex();
-  QByteArray response = "";
-  if (auth.contains("qop=")) {
-    QCryptographicHash md5_ha(QCryptographicHash::Md5);
-    // Get nc
-    QRegExp regex_nc(".*nc=[\"]?([\\w=]+)[\"]?.*");
-    if (regex_nc.indexIn(auth) < 0) {
-      qDebug("AUTH-PROB: qop but missing nc");
-      return false;
-    }
-    QByteArray prop_nc = regex_nc.cap(1).toUtf8();
-    //qDebug("prop nc is: %s", prop_nc.data());
-    QRegExp regex_cnonce(".*cnonce=[\"]?([\\w=]+)[\"]?.*");
-    if (regex_cnonce.indexIn(auth) < 0) {
-      qDebug("AUTH-PROB: qop but missing cnonce");
-      return false;
-    }
-    QByteArray prop_cnonce = regex_cnonce.cap(1).toUtf8();
-    //qDebug("prop cnonce is: %s", prop_cnonce.data());
-    QRegExp regex_qop(".*qop=[\"]?(\\w+)[\"]?.*");
-    if (regex_qop.indexIn(auth) < 0) {
-      qDebug("AUTH-PROB: missing qop");
-      return false;
-    }
-    QByteArray prop_qop = regex_qop.cap(1).toUtf8();
-    //qDebug("prop qop is: %s", prop_qop.data());
-    md5_ha.addData(m_passwordSha1+":"+prop_nonce+":"+prop_nc+":"+prop_cnonce+":"+prop_qop+":"+ha2);
-    response = md5_ha.result().toHex();
-  } else {
-    QCryptographicHash md5_ha(QCryptographicHash::Md5);
-    md5_ha.addData(m_passwordSha1+":"+prop_nonce+":"+ha2);
-    response = md5_ha.result().toHex();
+  else
+  {
+    serverSocket->deleteLater();
   }
-  //qDebug("AUTH: comparing reponses: (%d)", static_cast<int>(prop_response == response));
-  return prop_response == response;
-}
-
-void HttpServer::setlocalAuthEnabled(bool enabled) {
-  m_localAuthEnabled = enabled;
-}
-
-bool HttpServer::isLocalAuthEnabled() const {
-  return m_localAuthEnabled;
 }

src/webui/httpserver.h

@@ -1,6 +1,7 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
- * Copyright (C) 2006  Ishan Arora and Christophe Dumez
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2006  Ishan Arora and Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -24,50 +25,26 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : chris@qbittorrent.org
  */
 
 
 #ifndef HTTPSERVER_H
 #define HTTPSERVER_H
 
-#include <QPair>
 #include <QTcpServer>
-#include <QByteArray>
-#include <QHash>
-#include <QTimer>
-
 #ifndef QT_NO_OPENSSL
 #include <QSslCertificate>
 #include <QSslKey>
 #endif
 
-#include "preferences.h"
-
-class EventManager;
-
-QT_BEGIN_NAMESPACE
-class QTimer;
-QT_END_NAMESPACE
-
-const int MAX_AUTH_FAILED_ATTEMPTS = 5;
-
-class HttpServer : public QTcpServer {
+class HttpServer : public QTcpServer
+{
   Q_OBJECT
   Q_DISABLE_COPY(HttpServer)
 
 public:
   HttpServer(QObject* parent = 0);
   ~HttpServer();
-  void setAuthorization(const QString& username, const QString& password_sha1);
-  bool isAuthorized(const QByteArray& auth, const QString& method) const;
-  void setlocalAuthEnabled(bool enabled);
-  bool isLocalAuthEnabled() const;
-  QString generateNonce() const;
-  int NbFailedAttemptsForIp(const QString& ip) const;
-  void increaseNbFailedAttemptsForIp(const QString& ip);
-  void resetNbFailedAttemptsForIp(const QString& ip);
 
 #ifndef QT_NO_OPENSSL
   void enableHttps(const QSslCertificate &certificate, const QSslKey &key);
@@ -81,17 +58,7 @@ private:
   void incomingConnection(int socketDescriptor);
 #endif
 
-private slots:
-  void UnbanTimerEvent();
-
-private:
-  void handleNewConnection(QTcpSocket *socket);
-
 private:
-  QByteArray m_username;
-  QByteArray m_passwordSha1;
-  QHash<QString, int> m_clientFailedAttempts;
-  bool m_localAuthEnabled;
 #ifndef QT_NO_OPENSSL
   bool m_https;
   QSslCertificate m_certificate;

src/webui/jsonutils.h

@@ -1,6 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
- * Copyright (C) 2014  Vladimir Golovnev
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -24,8 +24,6 @@
  * modify file(s), you may extend this exception to your version of the file(s),
  * but you are not obligated to do so. If you do not wish to do so, delete this
  * exception statement from your version.
- *
- * Contact : glassez@yandex.ru
  */
 
 #ifndef JSONUTILS_H

src/webui/requesthandler.cpp

@@ -0,0 +1,588 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.ru>
+ * Copyright (C) 2012, Christophe Dumez <chris@qbittorrent.org>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#include <QDebug>
+#ifdef DISABLE_GUI
+#include <QCoreApplication>
+#else
+#include <QApplication>
+#endif
+#include <QTimer>
+#include <QCryptographicHash>
+#include <queue>
+#include <vector>
+#include <libtorrent/session.hpp>
+#ifndef DISABLE_GUI
+#include "iconprovider.h"
+#endif
+#include "misc.h"
+#include "fs_utils.h"
+#include "preferences.h"
+#include "btjson.h"
+#include "prefjson.h"
+#include "qbtsession.h"
+#include "requesthandler.h"
+
+using namespace libtorrent;
+
+const QString WWW_FOLDER = ":/www/public/";
+const QString PRIVATE_FOLDER = ":/www/private/";
+const QString DEFAULT_SCOPE = "public";
+const QString SCOPE_IMAGES = "images";
+const QString SCOPE_THEME = "theme";
+const QString DEFAULT_ACTION = "index";
+const QString WEBUI_ACTION = "webui";
+
+#define ADD_ACTION(scope, action) actions[#scope][#action] = &RequestHandler::action_##scope##_##action
+
+QMap<QString, QMap<QString, RequestHandler::Action> > RequestHandler::initializeActions()
+{
+  QMap<QString,QMap<QString, RequestHandler::Action> > actions;
+
+  ADD_ACTION(public, webui);
+  ADD_ACTION(public, index);
+  ADD_ACTION(public, login);
+  ADD_ACTION(public, logout);
+  ADD_ACTION(public, theme);
+  ADD_ACTION(public, images);
+  ADD_ACTION(json, torrents);
+  ADD_ACTION(json, preferences);
+  ADD_ACTION(json, transferInfo);
+  ADD_ACTION(json, propertiesGeneral);
+  ADD_ACTION(json, propertiesTrackers);
+  ADD_ACTION(json, propertiesFiles);
+  ADD_ACTION(command, shutdown);
+  ADD_ACTION(command, download);
+  ADD_ACTION(command, upload);
+  ADD_ACTION(command, addTrackers);
+  ADD_ACTION(command, resumeAll);
+  ADD_ACTION(command, pauseAll);
+  ADD_ACTION(command, resume);
+  ADD_ACTION(command, pause);
+  ADD_ACTION(command, setPreferences);
+  ADD_ACTION(command, setFilePrio);
+  ADD_ACTION(command, getGlobalUpLimit);
+  ADD_ACTION(command, getGlobalDlLimit);
+  ADD_ACTION(command, setGlobalUpLimit);
+  ADD_ACTION(command, setGlobalDlLimit);
+  ADD_ACTION(command, getTorrentUpLimit);
+  ADD_ACTION(command, getTorrentDlLimit);
+  ADD_ACTION(command, setTorrentUpLimit);
+  ADD_ACTION(command, setTorrentDlLimit);
+  ADD_ACTION(command, delete);
+  ADD_ACTION(command, deletePerm);
+  ADD_ACTION(command, increasePrio);
+  ADD_ACTION(command, decreasePrio);
+  ADD_ACTION(command, topPrio);
+  ADD_ACTION(command, bottomPrio);
+  ADD_ACTION(command, recheck);
+
+  return actions;
+}
+
+void RequestHandler::action_public_index()
+{
+  QString path;
+  if (!args_.isEmpty())
+  {
+    if (args_.back() == "favicon.ico")
+      path = ":/Icons/skin/qbittorrent16.png";
+    else
+      path = WWW_FOLDER + args_.join("/");
+  }
+
+  printFile(path);
+}
+
+void RequestHandler::action_public_webui()
+{
+  if (!sessionActive())
+    printFile(PRIVATE_FOLDER + "login.html");
+  else
+    printFile(PRIVATE_FOLDER + "index.html");
+}
+
+void RequestHandler::action_public_login()
+{
+  const Preferences* const pref = Preferences::instance();
+  QCryptographicHash md5(QCryptographicHash::Md5);
+
+  md5.addData(request().posts["password"].toLocal8Bit());
+  QString pass = md5.result().toHex();
+
+  if ((request().posts["username"] == pref->getWebUiUsername()) && (pass == pref->getWebUiPassword()))
+  {
+    sessionStart();
+    print(QByteArray("Ok."), CONTENT_TYPE_TXT);
+  }
+  else
+  {
+    QString addr = env().clientAddress.toString();
+    increaseFailedAttempts();
+    qDebug("client IP: %s (%d failed attempts)", qPrintable(addr), failedAttempts());
+    print(QByteArray("Fails."), CONTENT_TYPE_TXT);
+  }
+}
+
+void RequestHandler::action_public_logout()
+{
+  sessionEnd();
+}
+
+void RequestHandler::action_public_theme()
+{
+  if (args_.size() != 1)
+  {
+    status(404, "Not Found");
+    return;
+  }
+
+#ifdef DISABLE_GUI
+  QString url = ":/Icons/oxygen/" + args_.front() + ".png";
+#else
+  QString url = IconProvider::instance()->getIconPath(args_.front());
+#endif
+  qDebug() << Q_FUNC_INFO << "There icon:" << url;
+
+  printFile(url);
+}
+
+void RequestHandler::action_public_images()
+{
+  const QString path = ":/Icons/" + args_.join("/");
+  printFile(path);
+}
+
+void RequestHandler::action_json_torrents()
+{
+  print(btjson::getTorrents(), CONTENT_TYPE_JS);
+}
+
+void RequestHandler::action_json_preferences()
+{
+  print(prefjson::getPreferences(), CONTENT_TYPE_JS);
+}
+
+void RequestHandler::action_json_transferInfo()
+{
+  print(btjson::getTransferInfo(), CONTENT_TYPE_JS);
+}
+
+void RequestHandler::action_json_propertiesGeneral()
+{
+  print(btjson::getPropertiesForTorrent(args_.front()), CONTENT_TYPE_JS);
+}
+
+void RequestHandler::action_json_propertiesTrackers()
+{
+  print(btjson::getTrackersForTorrent(args_.front()), CONTENT_TYPE_JS);
+}
+
+void RequestHandler::action_json_propertiesFiles()
+{
+  print(btjson::getFilesForTorrent(args_.front()), CONTENT_TYPE_JS);
+}
+
+void RequestHandler::action_command_shutdown()
+{
+  qDebug() << "Shutdown request from Web UI";
+  // Special case handling for shutdown, we
+  // need to reply to the Web UI before
+  // actually shutting down.
+
+  QTimer::singleShot(0, qApp, SLOT(quit()));
+}
+
+void RequestHandler::action_command_download()
+{
+  QString urls = request().posts["urls"];
+  QStringList list = urls.split('\n');
+
+  foreach (QString url, list)
+  {
+    url = url.trimmed();
+    if (!url.isEmpty())
+    {
+      if (url.startsWith("bc://bt/", Qt::CaseInsensitive))
+      {
+        qDebug("Converting bc link to magnet link");
+        url = misc::bcLinkToMagnet(url);
+      }
+      else if (url.startsWith("magnet:", Qt::CaseInsensitive))
+      {
+        QBtSession::instance()->addMagnetSkipAddDlg(url);
+      }
+      else
+      {
+        qDebug("Downloading url: %s", qPrintable(url));
+        QBtSession::instance()->downloadUrlAndSkipDialog(url);
+      }
+    }
+  }
+}
+
+void RequestHandler::action_command_upload()
+{
+  qDebug() << Q_FUNC_INFO;
+
+  foreach(const UploadedFile& torrent, request().files)
+  {
+    QString filePath = saveTmpFile(torrent.data);
+
+    if (!filePath.isEmpty())
+    {
+      QBtSession::instance()->addTorrent(filePath);
+      // Clean up
+      fsutils::forceRemove(filePath);
+      print(QLatin1String("<script type=\"text/javascript\">window.parent.hideAll();</script>"));
+    }
+    else
+    {
+      qWarning() << "I/O Error: Could not create temporary file";
+    }
+  }
+}
+
+void RequestHandler::action_command_addTrackers()
+{
+  QString hash = request().posts["hash"];
+
+  if (!hash.isEmpty())
+  {
+    QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
+
+    if (h.is_valid() && h.has_metadata())
+    {
+      QString urls = request().posts["urls"];
+      QStringList list = urls.split('\n');
+
+      foreach (const QString& url, list)
+      {
+        announce_entry e(url.toStdString());
+        h.add_tracker(e);
+      }
+    }
+  }
+}
+
+void RequestHandler::action_command_resumeAll()
+{
+  QBtSession::instance()->resumeAllTorrents();
+}
+
+void RequestHandler::action_command_pauseAll()
+{
+  QBtSession::instance()->pauseAllTorrents();
+}
+
+void RequestHandler::action_command_resume()
+{
+  QBtSession::instance()->resumeTorrent(request().posts["hash"]);
+}
+
+void RequestHandler::action_command_pause()
+{
+  QBtSession::instance()->pauseTorrent(request().posts["hash"]);
+}
+
+void RequestHandler::action_command_setPreferences()
+{
+  prefjson::setPreferences(request().posts["json"]);
+}
+
+void RequestHandler::action_command_setFilePrio()
+{
+  QString hash = request().posts["hash"];
+  int file_id = request().posts["id"].toInt();
+  int priority = request().posts["priority"].toInt();
+  QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
+
+  if (h.is_valid() && h.has_metadata())
+  {
+    h.file_priority(file_id, priority);
+  }
+}
+
+void RequestHandler::action_command_getGlobalUpLimit()
+{
+  print(QByteArray::number(QBtSession::instance()->getSession()->settings().upload_rate_limit));
+}
+
+void RequestHandler::action_command_getGlobalDlLimit()
+{
+  print(QByteArray::number(QBtSession::instance()->getSession()->settings().download_rate_limit));
+}
+
+void RequestHandler::action_command_setGlobalUpLimit()
+{
+  qlonglong limit = request().posts["limit"].toLongLong();
+  if (limit == 0) limit = -1;
+
+  QBtSession::instance()->setUploadRateLimit(limit);
+  Preferences::instance()->setGlobalUploadLimit(limit/1024.);
+}
+
+void RequestHandler::action_command_setGlobalDlLimit()
+{
+  qlonglong limit = request().posts["limit"].toLongLong();
+  if (limit == 0) limit = -1;
+
+  QBtSession::instance()->setDownloadRateLimit(limit);
+  Preferences::instance()->setGlobalDownloadLimit(limit/1024.);
+}
+
+void RequestHandler::action_command_getTorrentUpLimit()
+{
+  QString hash = request().posts["hash"];
+  QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
+
+  if (h.is_valid())
+  {
+    print(QByteArray::number(h.upload_limit()));
+  }
+}
+
+void RequestHandler::action_command_getTorrentDlLimit()
+{
+  QString hash = request().posts["hash"];
+  QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
+
+  if (h.is_valid())
+  {
+    print(QByteArray::number(h.download_limit()));
+  }
+}
+
+void RequestHandler::action_command_setTorrentUpLimit()
+{
+  QString hash = request().posts["hash"];
+  qlonglong limit = request().posts["limit"].toLongLong();
+  if (limit == 0) limit = -1;
+  QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
+
+  if (h.is_valid())
+  {
+    h.set_upload_limit(limit);
+  }
+}
+
+void RequestHandler::action_command_setTorrentDlLimit()
+{
+  QString hash = request().posts["hash"];
+  qlonglong limit = request().posts["limit"].toLongLong();
+  if (limit == 0) limit = -1;
+  QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
+
+  if (h.is_valid())
+  {
+    h.set_download_limit(limit);
+  }
+}
+
+void RequestHandler::action_command_delete()
+{
+  QStringList hashes = request().posts["hashes"].split("|");
+
+  foreach (const QString &hash, hashes)
+  {
+    QBtSession::instance()->deleteTorrent(hash, false);
+  }
+}
+
+void RequestHandler::action_command_deletePerm()
+{
+  QStringList hashes = request().posts["hashes"].split("|");
+
+  foreach (const QString &hash, hashes)
+  {
+    QBtSession::instance()->deleteTorrent(hash, true);
+  }
+}
+
+void RequestHandler::action_command_increasePrio()
+{
+  QStringList hashes = request().posts["hashes"].split("|");
+  std::priority_queue<QPair<int, QTorrentHandle>,
+      std::vector<QPair<int, QTorrentHandle> >,
+      std::greater<QPair<int, QTorrentHandle> > > torrent_queue;
+
+  // Sort torrents by priority
+  foreach (const QString &hash, hashes)
+  {
+    try
+    {
+      QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
+      if (!h.is_seed())
+      {
+        torrent_queue.push(qMakePair(h.queue_position(), h));
+      }
+    }
+    catch(invalid_handle&) {}
+  }
+
+  // Increase torrents priority (starting with the ones with highest priority)
+  while(!torrent_queue.empty())
+  {
+    QTorrentHandle h = torrent_queue.top().second;
+
+    try
+    {
+      h.queue_position_up();
+    }
+    catch(invalid_handle&) {}
+
+    torrent_queue.pop();
+  }
+}
+
+void RequestHandler::action_command_decreasePrio()
+{
+  QStringList hashes = request().posts["hashes"].split("|");
+  std::priority_queue<QPair<int, QTorrentHandle>,
+      std::vector<QPair<int, QTorrentHandle> >,
+      std::less<QPair<int, QTorrentHandle> > > torrent_queue;
+
+  // Sort torrents by priority
+  foreach (const QString &hash, hashes)
+  {
+    try
+    {
+      QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
+
+      if (!h.is_seed())
+      {
+        torrent_queue.push(qMakePair(h.queue_position(), h));
+      }
+    }
+    catch(invalid_handle&) {}
+  }
+
+  // Decrease torrents priority (starting with the ones with lowest priority)
+  while(!torrent_queue.empty())
+  {
+    QTorrentHandle h = torrent_queue.top().second;
+
+    try
+    {
+      h.queue_position_down();
+    }
+    catch(invalid_handle&) {}
+
+    torrent_queue.pop();
+  }
+}
+
+void RequestHandler::action_command_topPrio()
+{
+  foreach (const QString &hash, request().posts["hashes"].split("|"))
+  {
+    QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
+    if (h.is_valid()) h.queue_position_top();
+  }
+}
+
+void RequestHandler::action_command_bottomPrio()
+{
+  foreach (const QString &hash, request().posts["hashes"].split("|"))
+  {
+    QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
+    if (h.is_valid()) h.queue_position_bottom();
+  }
+}
+
+void RequestHandler::action_command_recheck()
+{
+  QBtSession::instance()->recheckTorrent(request().posts["hash"]);
+}
+
+bool RequestHandler::isPublicScope()
+{
+  return (scope_ == DEFAULT_SCOPE);
+}
+
+void RequestHandler::processRequest()
+{
+  if (args_.contains(".") || args_.contains(".."))
+  {
+    qDebug() << Q_FUNC_INFO << "Invalid path:" << request().path;
+    status(404, "Not Found");
+    return;
+  }
+
+  if (!isPublicScope() && !sessionActive())
+  {
+    status(403, "Forbidden");
+    return;
+  }
+
+  if (actions_.value(scope_).value(action_) != 0)
+  {
+    (this->*(actions_[scope_][action_]))();
+  }
+  else
+  {
+    status(404, "Not Found");
+    qDebug() << Q_FUNC_INFO << "Resource not found:" << request().path;
+  }
+}
+
+void RequestHandler::parsePath()
+{
+  if(request().path == "/") action_ = WEBUI_ACTION;
+
+  // check action for requested path
+  QStringList pathItems = request().path.split('/', QString::SkipEmptyParts);
+  if (!pathItems.empty())
+  {
+    if (actions_.contains(pathItems.front()))
+    {
+      scope_ = pathItems.front();
+      pathItems.pop_front();
+    }
+  }
+
+  if (!pathItems.empty())
+  {
+    if (actions_[scope_].contains(pathItems.front()))
+    {
+      action_ = pathItems.front();
+      pathItems.pop_front();
+    }
+  }
+
+  args_ = pathItems;
+}
+
+RequestHandler::RequestHandler(const HttpRequest &request, const HttpEnvironment &env, WebApplication *app)
+  : AbstractRequestHandler(request, env, app), scope_(DEFAULT_SCOPE), action_(DEFAULT_ACTION)
+{
+  parsePath();
+}
+
+QMap<QString, QMap<QString, RequestHandler::Action> > RequestHandler::actions_ = RequestHandler::initializeActions();

src/webui/requesthandler.h

@@ -0,0 +1,100 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#ifndef REQUESTHANDLER_H
+#define REQUESTHANDLER_H
+
+#include <QStringList>
+#include "httptypes.h"
+#include "abstractrequesthandler.h"
+
+class WebApplication;
+
+class RequestHandler: public AbstractRequestHandler
+{
+public:
+  RequestHandler(
+      const HttpRequest& request, const HttpEnvironment& env,
+      WebApplication* app);
+
+private:
+  // Actions
+  void action_public_webui();
+  void action_public_index();
+  void action_public_login();
+  void action_public_logout();
+  void action_public_theme();
+  void action_public_images();
+  void action_json_torrents();
+  void action_json_preferences();
+  void action_json_transferInfo();
+  void action_json_propertiesGeneral();
+  void action_json_propertiesTrackers();
+  void action_json_propertiesFiles();
+  void action_command_shutdown();
+  void action_command_download();
+  void action_command_upload();
+  void action_command_addTrackers();
+  void action_command_resumeAll();
+  void action_command_pauseAll();
+  void action_command_resume();
+  void action_command_pause();
+  void action_command_setPreferences();
+  void action_command_setFilePrio();
+  void action_command_getGlobalUpLimit();
+  void action_command_getGlobalDlLimit();
+  void action_command_setGlobalUpLimit();
+  void action_command_setGlobalDlLimit();
+  void action_command_getTorrentUpLimit();
+  void action_command_getTorrentDlLimit();
+  void action_command_setTorrentUpLimit();
+  void action_command_setTorrentDlLimit();
+  void action_command_delete();
+  void action_command_deletePerm();
+  void action_command_increasePrio();
+  void action_command_decreasePrio();
+  void action_command_topPrio();
+  void action_command_bottomPrio();
+  void action_command_recheck();
+
+  typedef void (RequestHandler::*Action)();
+
+  QString scope_;
+  QString action_;
+  QStringList args_;
+
+  void processRequest();
+
+  bool isPublicScope();
+  void parsePath();
+
+  static QMap<QString, QMap<QString, Action> > initializeActions();
+  static QMap<QString, QMap<QString, Action> > actions_;
+};
+
+#endif // REQUESTHANDLER_H

src/webui/webapplication.cpp

@@ -0,0 +1,309 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#ifdef DISABLE_GUI
+#include <QCoreApplication>
+#else
+#include <QApplication>
+#endif
+#include <QDateTime>
+#include <QTimer>
+#include <QFile>
+#include <QDebug>
+#include "preferences.h"
+#include "requesthandler.h"
+#include "webapplication.h"
+
+// UnbanTimer
+
+class UnbanTimer: public QTimer
+{
+public:
+  UnbanTimer(const QHostAddress& peer_ip, QObject *parent)
+    : QTimer(parent), m_peerIp(peer_ip)
+  {
+    setSingleShot(true);
+    setInterval(BAN_TIME);
+  }
+
+  inline const QHostAddress& peerIp() const { return m_peerIp; }
+
+private:
+  QHostAddress m_peerIp;
+};
+
+// WebApplication
+
+WebApplication::WebApplication(QObject *parent)
+  : QObject(parent)
+{
+}
+
+WebApplication::~WebApplication()
+{
+  // cleanup sessions data
+  foreach (WebSession* session, sessions_.values())
+    delete session;
+}
+
+WebApplication *WebApplication::instance()
+{
+  static WebApplication inst;
+  return &inst;
+}
+
+void WebApplication::UnbanTimerEvent()
+{
+  UnbanTimer* ubantimer = static_cast<UnbanTimer*>(sender());
+  qDebug("Ban period has expired for %s", qPrintable(ubantimer->peerIp().toString()));
+  clientFailedAttempts_.remove(ubantimer->peerIp());
+  ubantimer->deleteLater();
+}
+
+bool WebApplication::sessionInitialize(AbstractRequestHandler* _this)
+{
+  if (_this->session_ == 0)
+  {
+    QString cookie = _this->request_.headers.value("cookie");
+    //qDebug() << Q_FUNC_INFO << "cookie: " << cookie;
+
+    QString sessionId;
+    const QString SID_START = C_SID + "=";
+    int pos = cookie.indexOf(SID_START);
+    if (pos >= 0)
+    {
+      pos += SID_START.length();
+      int end = cookie.indexOf(QRegExp("[,;]"), pos);
+      sessionId = cookie.mid(pos, end >= 0 ? end - pos : end);
+    }
+
+    // TODO: Additional session check
+
+    if (!sessionId.isNull())
+    {
+      if (sessions_.contains(sessionId))
+      {
+        _this->session_ = sessions_[sessionId];
+        return true;
+      }
+      else
+      {
+        qDebug() << Q_FUNC_INFO << "session does not exist!";
+      }
+    }
+  }
+
+  return false;
+}
+
+bool WebApplication::readFile(const QString& path, QByteArray &data, QString &type)
+{
+  QString ext = "";
+  int index = path.lastIndexOf('.') + 1;
+  if (index > 0)
+    ext = path.mid(index);
+
+  // find translated file in cache
+  if (translatedFiles_.contains(path))
+  {
+    data = translatedFiles_[path];
+  }
+  else
+  {
+    QFile file(path);
+    if (!file.open(QIODevice::ReadOnly))
+    {
+      qDebug("File %s was not found!", qPrintable(path));
+      return false;
+    }
+
+    data = file.readAll();
+    file.close();
+
+    // Translate the file
+    if ((ext == "html") || ((ext == "js") && !path.endsWith("excanvas-compressed.js")))
+    {
+      QString dataStr = QString::fromUtf8(data.constData());
+      translateDocument(dataStr);
+
+      if (path.endsWith("about.html"))
+      {
+        dataStr.replace("${VERSION}", VERSION);
+      }
+
+      data = dataStr.toUtf8();
+      translatedFiles_[path] = data; // cashing translated file
+    }
+  }
+
+  type = CONTENT_TYPE_BY_EXT[ext];
+  return true;
+}
+
+QString WebApplication::generateSid()
+{
+  QString sid;
+
+  qsrand(QDateTime::currentDateTime().toTime_t());
+  do
+  {
+    const size_t size = 6;
+    quint32 tmp[size];
+
+    for (size_t i = 0; i < size; ++i)
+      tmp[i] = qrand();
+
+    sid = QByteArray::fromRawData(reinterpret_cast<const char *>(tmp), sizeof(quint32) * size).toBase64();
+  }
+  while (sessions_.contains(sid));
+
+  return sid;
+}
+
+void WebApplication::translateDocument(QString& data)
+{
+  const QRegExp regex(QString::fromUtf8("_\\(([\\w\\s?!:\\/\\(\\),%µ&\\-\\.]+)\\)"));
+  const QRegExp mnemonic("\\(?&([a-zA-Z]?\\))?");
+  const std::string contexts[] = {
+    "TransferListFiltersWidget", "TransferListWidget", "PropertiesWidget",
+    "HttpServer", "confirmDeletionDlg", "TrackerList", "TorrentFilesModel",
+    "options_imp", "Preferences", "TrackersAdditionDlg", "ScanFoldersModel",
+    "PropTabBar", "TorrentModel", "downloadFromURL", "MainWindow", "misc"
+  };
+  const size_t context_count = sizeof(contexts) / sizeof(contexts[0]);
+  int i = 0;
+  bool found = true;
+
+  const QString locale = Preferences::instance()->getLocale();
+  bool isTranslationNeeded = !locale.startsWith("en") || locale.startsWith("en_AU") || locale.startsWith("en_GB");
+
+  while(i < data.size() && found)
+  {
+    i = regex.indexIn(data, i);
+    if (i >= 0)
+    {
+      //qDebug("Found translatable string: %s", regex.cap(1).toUtf8().data());
+      QByteArray word = regex.cap(1).toUtf8();
+
+      QString translation = word;
+      if (isTranslationNeeded)
+      {
+        size_t context_index = 0;
+        while ((context_index < context_count) && (translation == word))
+        {
+#if (QT_VERSION < QT_VERSION_CHECK(5, 0, 0))
+          translation = qApp->translate(contexts[context_index].c_str(), word.constData(), 0, QCoreApplication::UnicodeUTF8, 1);
+#else
+          translation = qApp->translate(contexts[context_index].c_str(), word.constData(), 0, 1);
+#endif
+          ++context_index;
+        }
+      }
+      // Remove keyboard shortcuts
+      translation.replace(mnemonic, "");
+
+      data.replace(i, regex.matchedLength(), translation);
+      i += translation.length();
+    }
+    else
+    {
+        found = false; // no more translatable strings
+    }
+  }
+}
+
+bool WebApplication::isBanned(const AbstractRequestHandler *_this) const
+{
+  return clientFailedAttempts_.value(_this->env_.clientAddress, 0) >= MAX_AUTH_FAILED_ATTEMPTS;
+}
+
+int WebApplication::failedAttempts(const AbstractRequestHandler* _this) const
+{
+  return clientFailedAttempts_.value(_this->env_.clientAddress, 0);
+}
+
+void WebApplication::resetFailedAttempts(AbstractRequestHandler* _this)
+{
+  clientFailedAttempts_.remove(_this->env_.clientAddress);
+}
+
+void WebApplication::increaseFailedAttempts(AbstractRequestHandler* _this)
+{
+  const int nb_fail = clientFailedAttempts_.value(_this->env_.clientAddress, 0) + 1;
+
+  clientFailedAttempts_[_this->env_.clientAddress] = nb_fail;
+  if (nb_fail == MAX_AUTH_FAILED_ATTEMPTS)
+  {
+    // Max number of failed attempts reached
+    // Start ban period
+    UnbanTimer* ubantimer = new UnbanTimer(_this->env_.clientAddress, this);
+    connect(ubantimer, SIGNAL(timeout()), SLOT(UnbanTimerEvent()));
+    ubantimer->start();
+  }
+}
+
+bool WebApplication::sessionStart(AbstractRequestHandler *_this)
+{
+  if (_this->session_ == 0)
+  {
+    _this->session_ = new WebSession(generateSid());
+    sessions_[_this->session_->id] = _this->session_;
+    return true;
+  }
+
+  return false;
+}
+
+bool WebApplication::sessionEnd(AbstractRequestHandler *_this)
+{
+  if ((_this->session_ != 0) && (sessions_.contains(_this->session_->id)))
+  {
+    sessions_.remove(_this->session_->id);
+    delete _this->session_;
+    _this->session_ = 0;
+    return true;
+  }
+
+  return false;
+}
+
+QStringMap WebApplication::initializeContentTypeByExtMap()
+{
+  QStringMap map;
+
+  map["htm"] = CONTENT_TYPE_HTML;
+  map["html"] = CONTENT_TYPE_HTML;
+  map["css"] = CONTENT_TYPE_CSS;
+  map["gif"] = CONTENT_TYPE_GIF;
+  map["png"] = CONTENT_TYPE_PNG;
+  map["js"] = CONTENT_TYPE_JS;
+
+  return map;
+}
+
+const QStringMap WebApplication::CONTENT_TYPE_BY_EXT = WebApplication::initializeContentTypeByExtMap();

src/webui/webapplication.h

@@ -0,0 +1,87 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2014  Vladimir Golovnev <glassez@yandex.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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#ifndef WEBAPPLICATION_H
+#define WEBAPPLICATION_H
+
+#include <QObject>
+#include <QMap>
+#include <QHash>
+#include "httptypes.h"
+
+struct WebSession
+{
+  const QString id;
+
+  WebSession(const QString& id): id(id) {}
+};
+
+const QString C_SID = "SID"; // name of session id cookie
+const int BAN_TIME = 3600000; // 1 hour
+const int MAX_AUTH_FAILED_ATTEMPTS = 5;
+
+class AbstractRequestHandler;
+
+class WebApplication: public QObject
+{
+  Q_OBJECT
+  Q_DISABLE_COPY(WebApplication)
+
+public:
+  WebApplication(QObject* parent = 0);
+  virtual ~WebApplication();
+
+  static WebApplication* instance();
+
+  bool isBanned(const AbstractRequestHandler* _this) const;
+  int failedAttempts(const AbstractRequestHandler *_this) const;
+  void resetFailedAttempts(AbstractRequestHandler* _this);
+  void increaseFailedAttempts(AbstractRequestHandler* _this);
+
+  bool sessionStart(AbstractRequestHandler* _this);
+  bool sessionEnd(AbstractRequestHandler* _this);
+  bool sessionInitialize(AbstractRequestHandler* _this);
+
+  bool readFile(const QString &path, QByteArray& data, QString& type);
+
+private slots:
+  void UnbanTimerEvent();
+
+private:
+  QMap<QString, WebSession*> sessions_;
+  QHash<QHostAddress, int> clientFailedAttempts_;
+  QMap<QString, QByteArray> translatedFiles_;
+
+  QString generateSid();
+  static void translateDocument(QString& data);
+
+  static const QStringMap CONTENT_TYPE_BY_EXT;
+  static QStringMap initializeContentTypeByExtMap();
+};
+
+#endif // WEBAPPLICATION_H

src/webui/webui.pri

@@ -10,6 +10,7 @@ HEADERS += $$PWD/httpserver.h \
            $$PWD/httptypes.h \
            $$PWD/extra_translations.h \
            $$PWD/webapplication.h \
+           $$PWD/abstractrequesthandler.h \
            $$PWD/requesthandler.h
 
 SOURCES += $$PWD/httpserver.cpp \
@@ -19,6 +20,7 @@ SOURCES += $$PWD/httpserver.cpp \
            $$PWD/btjson.cpp \
            $$PWD/prefjson.cpp \
            $$PWD/webapplication.cpp \
+           $$PWD/abstractrequesthandler.cpp \
            $$PWD/requesthandler.cpp
 
 # QJson JSON parser/serializer for using with Qt4