WebUI: Add command to get the logs

Add /query/getLog and /query/getPeerLog to respectively retrieve
the main log and the peer log.

GET /query/getLog
Params:
 - normal (bool): include normal messages (default true)
 - info (bool): include info messages (default true)
 - warning (bool): include warning messages (default true)
 - critical (bool): include critical messages (default true)
 - last_known_id (int): exclude messages with id <= 'last_known_id'

GET /query/getPeerLog
Params:
 - last_known_id (int): exclude messages with id <= 'last_known_id'

src/webui/btjson.cpp

@@ -29,6 +29,7 @@
  */
 
 #include "btjson.h"
+#include "base/logger.h"
 #include "base/utils/misc.h"
 #include "base/utils/fs.h"
 #include "base/preferences.h"
@@ -198,6 +199,15 @@ static const char KEY_FULL_UPDATE[] = "full_update";
 static const char KEY_RESPONSE_ID[] = "rid";
 static const char KEY_SUFFIX_REMOVED[] = "_removed";
 
+// Log keys
+static const char KEY_LOG_ID[] = "id";
+static const char KEY_LOG_TIMESTAMP[] = "timestamp";
+static const char KEY_LOG_MSG_TYPE[] = "type";
+static const char KEY_LOG_MSG_MESSAGE[] = "message";
+static const char KEY_LOG_PEER_IP[] = "ip";
+static const char KEY_LOG_PEER_BLOCKED[] = "blocked";
+static const char KEY_LOG_PEER_REASON[] = "reason";
+
 QVariantMap getTranserInfoMap();
 QVariantMap toMap(BitTorrent::TorrentHandle *const torrent);
 void processMap(QVariantMap prevData, QVariantMap data, QVariantMap &syncData);
@@ -887,3 +897,64 @@ QVariantMap generateSyncData(int acceptedResponseId, QVariantMap data, QVariantM
 
     return syncData;
 }
+
+/**
+ * Returns the log in JSON format.
+ *
+ * The return value is an array of dictionaries.
+ * The dictionary keys are:
+ *   - "id": id of the message
+ *   - "timestamp": milliseconds since epoch
+ *   - "type": type of the message (int, see MsgType)
+ *   - "message": text of the message
+ */
+QByteArray btjson::getLog(bool normal, bool info, bool warning, bool critical, int lastKnownId)
+{
+    Logger* const logger = Logger::instance();
+    QVariantList msgList;
+
+    foreach (const Log::Msg& msg, logger->getMessages(lastKnownId)) {
+        if (!((msg.type == Log::NORMAL && normal)
+              || (msg.type == Log::INFO && info)
+              || (msg.type == Log::WARNING && warning)
+              || (msg.type == Log::CRITICAL && critical)))
+            continue;
+        QVariantMap map;
+        map[KEY_LOG_ID] = msg.id;
+        map[KEY_LOG_TIMESTAMP] = msg.timestamp;
+        map[KEY_LOG_MSG_TYPE] = msg.type;
+        map[KEY_LOG_MSG_MESSAGE] = msg.message;
+        msgList.append(map);
+    }
+
+    return json::toJson(msgList);
+}
+
+/**
+ * Returns the peer log in JSON format.
+ *
+ * The return value is an array of dictionaries.
+ * The dictionary keys are:
+ *   - "id": id of the message
+ *   - "timestamp": milliseconds since epoch
+ *   - "ip": IP of the peer
+ *   - "blocked": whether or not the peer was blocked
+ *   - "reason": reason of the block
+ */
+QByteArray btjson::getPeerLog(int lastKnownId)
+{
+    Logger* const logger = Logger::instance();
+    QVariantList peerList;
+
+    foreach (const Log::Peer& peer, logger->getPeers(lastKnownId)) {
+        QVariantMap map;
+        map[KEY_LOG_ID] = peer.id;
+        map[KEY_LOG_TIMESTAMP] = peer.timestamp;
+        map[KEY_LOG_PEER_IP] = peer.ip;
+        map[KEY_LOG_PEER_BLOCKED] = peer.blocked;
+        map[KEY_LOG_PEER_REASON] = peer.reason;
+        peerList.append(map);
+    }
+
+    return json::toJson(peerList);
+}

src/webui/btjson.h

@@ -53,6 +53,8 @@ public:
     static QByteArray getFilesForTorrent(const QString& hash);
     static QByteArray getTransferInfo();
     static QByteArray getTorrentsRatesLimits(QStringList& hashes, bool downloadLimits);
+    static QByteArray getLog(bool normal, bool info, bool warning, bool critical, int lastKnownId);
+    static QByteArray getPeerLog(int lastKnownId);
 }; // class btjson
 
 #endif // BTJSON_H

src/webui/webapplication.cpp

@@ -81,6 +81,8 @@ QMap<QString, QMap<QString, WebApplication::Action> > WebApplication::initialize
     ADD_ACTION(query, propertiesTrackers);
     ADD_ACTION(query, propertiesWebSeeds);
     ADD_ACTION(query, propertiesFiles);
+    ADD_ACTION(query, getLog);
+    ADD_ACTION(query, getPeerLog);
     ADD_ACTION(sync, maindata);
     ADD_ACTION(sync, torrent_peers);
     ADD_ACTION(command, shutdown);
@@ -270,6 +272,44 @@ void WebApplication::action_query_propertiesFiles()
     print(btjson::getFilesForTorrent(args_.front()), Http::CONTENT_TYPE_JSON);
 }
 
+// GET params:
+//   - normal (bool): include normal messages (default true)
+//   - info (bool): include info messages (default true)
+//   - warning (bool): include warning messages (default true)
+//   - critical (bool): include critical messages (default true)
+//   - last_known_id (int): exclude messages with id <= 'last_known_id' (default -1)
+void WebApplication::action_query_getLog()
+{
+    CHECK_URI(0);
+    bool normal = request().gets["normal"] != "false";
+    bool info = request().gets["info"] != "false";
+    bool warning = request().gets["warning"] != "false";
+    bool critical = request().gets["critical"] != "false";
+    int lastKnownId;
+    bool ok;
+
+    lastKnownId = request().gets["last_known_id"].toInt(&ok);
+    if (!ok)
+        lastKnownId = -1;
+
+    print(btjson::getLog(normal, info, warning, critical, lastKnownId), Http::CONTENT_TYPE_JSON);
+}
+
+// GET params:
+//   - last_known_id (int): exclude messages with id <= 'last_known_id' (default -1)
+void WebApplication::action_query_getPeerLog()
+{
+    CHECK_URI(0);
+    int lastKnownId;
+    bool ok;
+
+    lastKnownId = request().gets["last_known_id"].toInt(&ok);
+    if (!ok)
+        lastKnownId = -1;
+
+    print(btjson::getPeerLog(lastKnownId), Http::CONTENT_TYPE_JSON);
+}
+
 // GET param:
 //   - rid (int): last response id
 void WebApplication::action_sync_maindata()

src/webui/webapplication.h

@@ -54,6 +54,8 @@ private:
     void action_query_propertiesTrackers();
     void action_query_propertiesWebSeeds();
     void action_query_propertiesFiles();
+    void action_query_getLog();
+    void action_query_getPeerLog();
     void action_sync_maindata();
     void action_sync_torrent_peers();
     void action_command_shutdown();