no more crash on windows

proxyface/autoproxy.hxx

@@ -17,6 +17,9 @@
 #include <QtCore/QDebug>
 #include <QtCore/QThread>
 #include <map>
+#ifndef PROXYFACE_LOG
+#define PROXYFACE_LOG qDebug()<<__PRETTY_FUNCTION__
+#endif
 #endif
 
 #include <list>
@@ -87,6 +90,7 @@ namespace proxy {
       //! Keep your instance as long as possible, because of caching.
       Interface() {
 #ifdef QT_NETWORK_LIB
+        PROXYFACE_LOG;
         if (!connect(&_timeout1, SIGNAL(timeout()), SLOT(timeout())))
           qFatal("connect failed");
         if (!connect(&_timeout2, SIGNAL(timeout()), SLOT(timeout())))
@@ -112,12 +116,13 @@ namespace proxy {
           @param timeout [ms] time to give up search */
       void proxy(const std::string& url,
                  int timeout1=5000, int timeout2=30000) {
+        PROXYFACE_LOG;
         qDebug()<<"Search proxy for URL, direct and default"
                 <<"url="<<url.data()<<"timeout1="<<timeout1;
         _url = url;
         for (Requests::iterator it(_requests.begin());
              it!=_requests.end(); ++it)
-          delete it->second.first;
+          clean(it->second.first);
         _requests.clear();
         _direct = true; // first try direct access
         QNetworkProxy directProxy(QNetworkProxy::NoProxy);
@@ -133,11 +138,13 @@ namespace proxy {
       //! If Qt Network is available you may check the proxies found
       /*! @copydoc proxy(const std::string&, int) */
       void proxy(const QUrl& url, int timeout1=5000, int timeout2=30000) {
+        PROXYFACE_LOG;
         proxy(url.toString().toStdString(), timeout1, timeout2);
       }
       //! If Qt Network is available you may check the proxies found
       /*! @copydoc proxy(const std::string&, int) */
       void proxy(const QString& url, int timeout1=5000, int timeout2=30000) {
+        PROXYFACE_LOG;
         proxy(url.toStdString(), timeout1, timeout2);
       }
       static QString toString(const QNetworkProxy& p) {
@@ -174,6 +181,7 @@ namespace proxy {
       void temporaryError(QNetworkReply::NetworkError, QString, QString);
     private:
       void setupProxyCheck(const QNetworkProxy& prxy, const std::string& url) {
+        PROXYFACE_LOG;
         qDebug()<<"Testing proxy for url:"<<toString(prxy)<<"url="<<url.data();
         QNetworkAccessManager* manager(new QNetworkAccessManager);
         manager->setProxy(prxy);
@@ -197,15 +205,38 @@ namespace proxy {
                            (QUrl(QString::fromStdString(url)))),
                           std::make_pair(manager, prxy)));
       }
+      void clean(QNetworkAccessManager* manager) {
+        if (!disconnect(manager, SIGNAL(finished(QNetworkReply*)),
+                        this, SLOT(replyFinished(QNetworkReply*))))
+          qFatal("disconnect failed");
+        disconnect(manager,
+                   SIGNAL(authenticationRequired(QNetworkReply*,
+                                                 QAuthenticator*)),
+                   this,
+                   SLOT(authenticationRequired(QNetworkReply*,
+                                               QAuthenticator*)));
+        disconnect(manager,
+                   SIGNAL(proxyAuthenticationRequired(const QNetworkProxy&,
+                                                      QAuthenticator*)),
+                   this,
+                   SLOT(proxyAuthenticationRequired(const QNetworkProxy&,
+                                                    QAuthenticator*)));
+        disconnect(manager,
+                   SIGNAL(sslErrors(QNetworkReply*, const QList<QSslError>&)),
+                   this,
+                   SLOT(sslErrors(QNetworkReply*, const QList<QSslError>&)));
+        delete manager;
+      }
     private Q_SLOTS:
       void timeout() {
+        PROXYFACE_LOG;
         _timeout1.stop();
         _timeout2.stop();
         std::string url;
         for (Requests::iterator it(_requests.begin());
              it!=_requests.end(); ++it) {
           url = it->first->url().toString().toStdString();
-          delete it->second.first;
+          clean(it->second.first);
         }
         _requests.clear();
         qDebug()<<"Proxy detection timed out"<<"url="<<url.data();
@@ -214,18 +245,14 @@ namespace proxy {
             " try autoproxy negotiation";
           _direct = false;
           _url = url;
-#ifdef Q_OS_WIN32
-          _proxies = proxies(_url); // M$ cannot always do multithreading
-          threadFinished();
-#else
           start(); // autoproxy detection in own thread
-#endif
         } else {
           qDebug()<<"No proxy at all, giving up - offline?";
           proxyError(QNetworkReply::TimeoutError);
         }
       }
       void replyFinished(QNetworkReply* reply) {
+        PROXYFACE_LOG;
         qDebug()<<"Proxydetection got reply with status:"
                 <<reply->error()<<reply->errorString();
         if (reply->error()!=QNetworkReply::NoError) {
@@ -239,24 +266,28 @@ namespace proxy {
         QUrl url(reply->url());
         for (Requests::iterator it(_requests.begin());
              it!=_requests.end(); ++it)
-          delete it->second.first;
+          clean(it->second.first);
         _requests.clear();
         qDebug()<<"SUCCESS - Valid proxy found for url:"
                 <<"url="<<url<<"proxy="<<toString(prxy);
         proxyFound(url, prxy);
       }
       void authenticationRequired(QNetworkReply*, QAuthenticator*) {
+        PROXYFACE_LOG;
         qDebug()<<"## "<<__PRETTY_FUNCTION__;
       }
       void proxyAuthenticationRequired(const QNetworkProxy&, QAuthenticator*) {
+        PROXYFACE_LOG;
         qDebug()<<"## "<<__PRETTY_FUNCTION__;
       }
       void sslErrors(QNetworkReply*, const QList<QSslError>& l) {
+        PROXYFACE_LOG;
         qDebug()<<"## "<<__PRETTY_FUNCTION__;
         for (QList<QSslError>::const_iterator it(l.begin()); it!=l.end(); ++it)
           qDebug()<<" SSL-Error -> "<<it->errorString();
       }
       void threadFinished() {
+        PROXYFACE_LOG;
         for (List::const_iterator it(_proxies.begin());
              it!=_proxies.end(); ++it) {
           QNetworkProxy prxy((it->type==DEFAULT?QNetworkProxy::DefaultProxy
@@ -274,6 +305,7 @@ namespace proxy {
       }
     protected:
       void run() {
+        PROXYFACE_LOG;
         _proxies = proxies(_url);
       }
     private: