Safer error detection

src/bittorrent.cpp

@@ -2357,13 +2357,13 @@ void Bittorrent::addConsoleMessage(QString msg, QString) {
       }
       else if (fastresume_rejected_alert* p = dynamic_cast<fastresume_rejected_alert*>(a.get())) {
         QTorrentHandle h(p->handle);
-        if(h.is_valid() && TorrentPersistentData::isSeed(h.hash())){
+        if(h.is_valid()) {
           qDebug("/!\\ Fast resume failed for %s, reason: %s", qPrintable(h.name()), p->message().c_str());
 #if LIBTORRENT_VERSION_MINOR < 15
           QString msg = QString::fromLocal8Bit(p->message().c_str());
-          if(msg.contains("filesize", Qt::CaseInsensitive) && msg.contains("mismatch", Qt::CaseInsensitive)) {
+          if(msg.contains("filesize", Qt::CaseInsensitive) && msg.contains("mismatch", Qt::CaseInsensitive) && TorrentPersistentData::isSeed(h.hash()) && h.has_missing_files()) {
 #else
-            if(p->error.value() == 134) {
+            if(p->error.value() == 134 && TorrentPersistentData::isSeed(h.hash()) && h.has_missing_files()) {
 #endif
               const QString hash = h.hash();
               // Mismatching file size (files were probably moved

src/qtorrenthandle.cpp

@@ -387,6 +387,14 @@ QStringList QTorrentHandle::files_path() const {
   return res;
 }
 
+bool QTorrentHandle::has_missing_files() const {
+  const QStringList paths = files_path();
+  foreach(const QString &path, paths) {
+    if(!QFile::exists(path)) return true;
+  }
+  return false;
+}
+
 int QTorrentHandle::queue_position() const {
   Q_ASSERT(h.is_valid());
   if(h.queue_position() < 0)

src/qtorrenthandle.h

@@ -110,6 +110,7 @@ class QTorrentHandle {
     size_type all_time_download() const;
     size_type total_done() const;
     QStringList files_path() const;
+    bool has_missing_files() const;
     int num_uploads() const;
     bool is_seed() const;
     bool is_checking() const;