Merge pull request #2153 from pmzqla/webui-versioninfo

WebUI: Allow to retrieve web API version and qBT version

src/webui/requesthandler.cpp

@@ -51,6 +51,9 @@
 
 using namespace libtorrent;
 
+static const int API_VERSION = 2;
+static const int API_VERSION_MIN = 2;
+
 const QString WWW_FOLDER = ":/www/public/";
 const QString PRIVATE_FOLDER = ":/www/private/";
 const QString DEFAULT_SCOPE = "public";
@@ -58,6 +61,7 @@ const QString SCOPE_IMAGES = "images";
 const QString SCOPE_THEME = "theme";
 const QString DEFAULT_ACTION = "index";
 const QString WEBUI_ACTION = "webui";
+const QString VERSION_INFO = "version";
 
 #define ADD_ACTION(scope, action) actions[#scope][#action] = &RequestHandler::action_##scope##_##action
 
@@ -102,6 +106,9 @@ QMap<QString, QMap<QString, RequestHandler::Action> > RequestHandler::initialize
     ADD_ACTION(command, topPrio);
     ADD_ACTION(command, bottomPrio);
     ADD_ACTION(command, recheck);
+    ADD_ACTION(version, api);
+    ADD_ACTION(version, api_min);
+    ADD_ACTION(version, qbittorrent);
 
     return actions;
 }
@@ -109,8 +116,8 @@ QMap<QString, QMap<QString, RequestHandler::Action> > RequestHandler::initialize
 void RequestHandler::action_public_index()
 {
     QString path;
-  if (!args_.isEmpty())
-  {
+
+    if (!args_.isEmpty()) {
         if (args_.back() == "favicon.ico")
             path = ":/Icons/skin/qbittorrent16.png";
         else
@@ -139,13 +146,11 @@ void RequestHandler::action_public_login()
     bool equalUser = misc::slowEquals(request().posts["username"].toUtf8(), pref->getWebUiUsername().toUtf8());
     bool equalPass = misc::slowEquals(pass.toUtf8(), pref->getWebUiPassword().toUtf8());
 
-  if (equalUser && equalPass)
-  {
+    if (equalUser && equalPass) {
         sessionStart();
         print(QByteArray("Ok."), CONTENT_TYPE_TXT);
     }
-  else
-  {
+    else {
         QString addr = env().clientAddress.toString();
         increaseFailedAttempts();
         qDebug("client IP: %s (%d failed attempts)", qPrintable(addr), failedAttempts());
@@ -160,8 +165,7 @@ void RequestHandler::action_public_logout()
 
 void RequestHandler::action_public_theme()
 {
-  if (args_.size() != 1)
-  {
+    if (args_.size() != 1) {
         status(404, "Not Found");
         return;
     }
@@ -212,6 +216,21 @@ void RequestHandler::action_json_propertiesFiles()
     print(btjson::getFilesForTorrent(args_.front()), CONTENT_TYPE_JS);
 }
 
+void RequestHandler::action_version_api()
+{
+    print(QString::number(API_VERSION), CONTENT_TYPE_TXT);
+}
+
+void RequestHandler::action_version_api_min()
+{
+    print(QString::number(API_VERSION_MIN), CONTENT_TYPE_TXT);
+}
+
+void RequestHandler::action_version_qbittorrent()
+{
+    print(QString(VERSION), CONTENT_TYPE_TXT);
+}
+
 void RequestHandler::action_command_shutdown()
 {
     qDebug() << "Shutdown request from Web UI";
@@ -227,22 +246,17 @@ void RequestHandler::action_command_download()
     QString urls = request().posts["urls"];
     QStringList list = urls.split('\n');
 
-  foreach (QString url, list)
-  {
+    foreach (QString url, list) {
         url = url.trimmed();
-    if (!url.isEmpty())
-    {
-      if (url.startsWith("bc://bt/", Qt::CaseInsensitive))
-      {
+        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))
-      {
+            else if (url.startsWith("magnet:", Qt::CaseInsensitive)) {
                 QBtSession::instance()->addMagnetSkipAddDlg(url);
             }
-      else
-      {
+            else {
                 qDebug("Downloading url: %s", qPrintable(url));
                 QBtSession::instance()->downloadUrlAndSkipDialog(url);
             }
@@ -254,12 +268,10 @@ void RequestHandler::action_command_upload()
 {
     qDebug() << Q_FUNC_INFO;
 
-  foreach(const UploadedFile& torrent, request().files)
-  {
+    foreach(const UploadedFile& torrent, request().files) {
         QString filePath = saveTmpFile(torrent.data);
 
-    if (!filePath.isEmpty())
-    {
+        if (!filePath.isEmpty()) {
             QTorrentHandle h = QBtSession::instance()->addTorrent(filePath);
             if (!h.is_valid()) {
                 status(415, "Internal Server Error");
@@ -268,8 +280,7 @@ void RequestHandler::action_command_upload()
             // Clean up
             fsutils::forceRemove(filePath);
         }
-    else
-    {
+        else {
             qWarning() << "I/O Error: Could not create temporary file";
             status(500, "Internal Server Error");
             print(QObject::tr("I/O Error: Could not create temporary file."), CONTENT_TYPE_TXT);
@@ -281,17 +292,14 @@ void RequestHandler::action_command_addTrackers()
 {
     QString hash = request().posts["hash"];
 
-  if (!hash.isEmpty())
-  {
+    if (!hash.isEmpty()) {
         QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
 
-    if (h.is_valid() && h.has_metadata())
-    {
+        if (h.is_valid() && h.has_metadata()) {
             QString urls = request().posts["urls"];
             QStringList list = urls.split('\n');
 
-      foreach (const QString& url, list)
-      {
+            foreach (const QString& url, list) {
                 announce_entry e(url.toStdString());
                 h.add_tracker(e);
             }
@@ -332,10 +340,8 @@ void RequestHandler::action_command_setFilePrio()
     QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
 
     if (h.is_valid() && h.has_metadata())
-  {
         h.file_priority(file_id, priority);
 }
-}
 
 void RequestHandler::action_command_getGlobalUpLimit()
 {
@@ -371,10 +377,8 @@ void RequestHandler::action_command_getTorrentUpLimit()
     QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
 
     if (h.is_valid())
-  {
         print(QByteArray::number(h.upload_limit()));
 }
-}
 
 void RequestHandler::action_command_getTorrentDlLimit()
 {
@@ -382,10 +386,8 @@ void RequestHandler::action_command_getTorrentDlLimit()
     QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
 
     if (h.is_valid())
-  {
         print(QByteArray::number(h.download_limit()));
 }
-}
 
 void RequestHandler::action_command_setTorrentUpLimit()
 {
@@ -395,10 +397,8 @@ void RequestHandler::action_command_setTorrentUpLimit()
     QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
 
     if (h.is_valid())
-  {
         h.set_upload_limit(limit);
 }
-}
 
 void RequestHandler::action_command_setTorrentDlLimit()
 {
@@ -408,59 +408,46 @@ void RequestHandler::action_command_setTorrentDlLimit()
     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
-    {
+    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())
-  {
+    while(!torrent_queue.empty()) {
         QTorrentHandle h = torrent_queue.top().second;
 
-    try
-    {
+        try {
             h.queue_position_up();
         }
         catch(invalid_handle&) {}
@@ -472,32 +459,27 @@ void RequestHandler::action_command_increasePrio()
 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
-    {
+    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())
-  {
+    while(!torrent_queue.empty()) {
         QTorrentHandle h = torrent_queue.top().second;
 
-    try
-    {
+        try {
             h.queue_position_down();
         }
         catch(invalid_handle&) {}
@@ -508,8 +490,7 @@ void RequestHandler::action_command_decreasePrio()
 
 void RequestHandler::action_command_topPrio()
 {
-  foreach (const QString &hash, request().posts["hashes"].split("|"))
-  {
+    foreach (const QString &hash, request().posts["hashes"].split("|")) {
         QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
         if (h.is_valid()) h.queue_position_top();
     }
@@ -517,8 +498,7 @@ void RequestHandler::action_command_topPrio()
 
 void RequestHandler::action_command_bottomPrio()
 {
-  foreach (const QString &hash, request().posts["hashes"].split("|"))
-  {
+    foreach (const QString &hash, request().posts["hashes"].split("|")) {
         QTorrentHandle h = QBtSession::instance()->getTorrentHandle(hash);
         if (h.is_valid()) h.queue_position_bottom();
     }
@@ -531,30 +511,26 @@ void RequestHandler::action_command_recheck()
 
 bool RequestHandler::isPublicScope()
 {
-  return (scope_ == DEFAULT_SCOPE);
+    return (scope_ == DEFAULT_SCOPE || scope_ == VERSION_INFO);
 }
 
 void RequestHandler::processRequest()
 {
-  if (args_.contains(".") || args_.contains(".."))
-  {
+    if (args_.contains(".") || args_.contains("..")) {
         qDebug() << Q_FUNC_INFO << "Invalid path:" << request().path;
         status(404, "Not Found");
         return;
     }
 
-  if (!isPublicScope() && !sessionActive())
-  {
+    if (!isPublicScope() && !sessionActive()) {
         status(403, "Forbidden");
         return;
     }
 
-  if (actions_.value(scope_).value(action_) != 0)
-  {
+    if (actions_.value(scope_).value(action_) != 0) {
         (this->*(actions_[scope_][action_]))();
     }
-  else
-  {
+    else {
         status(404, "Not Found");
         qDebug() << Q_FUNC_INFO << "Resource not found:" << request().path;
     }
@@ -566,19 +542,15 @@ void RequestHandler::parsePath()
 
     // check action for requested path
     QStringList pathItems = request().path.split('/', QString::SkipEmptyParts);
-  if (!pathItems.empty())
-  {
-    if (actions_.contains(pathItems.front()))
-    {
+    if (!pathItems.empty()) {
+        if (actions_.contains(pathItems.front())) {
             scope_ = pathItems.front();
             pathItems.pop_front();
         }
     }
 
-  if (!pathItems.empty())
-  {
-    if (actions_[scope_].contains(pathItems.front()))
-    {
+    if (!pathItems.empty()) {
+        if (actions_[scope_].contains(pathItems.front())) {
             action_ = pathItems.front();
             pathItems.pop_front();
         }

src/webui/requesthandler.h

@@ -81,6 +81,9 @@ private:
     void action_command_topPrio();
     void action_command_bottomPrio();
     void action_command_recheck();
+    void action_version_api();
+    void action_version_api_min();
+    void action_version_qbittorrent();
 
     typedef void (RequestHandler::*Action)();