add regex filter (#370)

* add regex list

* replace CT as well

* replace instead of remove

* add a default filter

bin/config_sample/text/filter.txt

@@ -0,0 +1 @@
+tranny

src/config_manager.cpp

@@ -93,6 +93,7 @@ bool ConfigManager::verifyServerConfig()
     m_commands->praises = (loadConfigFile("praise"));
     m_commands->reprimands = (loadConfigFile("reprimands"));
     m_commands->gimps = (loadConfigFile("gimp"));
+    m_commands->filters = (loadConfigFile("filter"));
     m_commands->cdns = (loadConfigFile("cdns"));
     if (m_commands->cdns.isEmpty())
         m_commands->cdns = QStringList{"cdn.discord.com"};
@@ -621,6 +622,11 @@ QStringList ConfigManager::gimpList()
     return m_commands->gimps;
 }
 
+QStringList ConfigManager::filterList()
+{
+    return m_commands->filters;
+}
+
 QStringList ConfigManager::cdnList()
 {
     return m_commands->cdns;

src/config_manager.h

@@ -421,6 +421,13 @@ class ConfigManager
      */
     static QStringList gimpList();
 
+    /**
+     * @brief Returns the server regex filter list
+     *
+     * @return See short description.
+     */
+    static QStringList filterList();
+
     /**
      * @brief Returns the server approved domain list.
      *
@@ -519,6 +526,7 @@ class ConfigManager
         QStringList praises;     //!< Contains command praises, found in config/text/praises.txt
         QStringList reprimands;  //!< Contains command reprimands, found in config/text/reprimands.txt
         QStringList gimps;       //!< Contains phrases for /gimp, found in config/text/gimp.txt
+        QStringList filters;     //!< Contains filter regex, found in config/text/filter.txt
         QStringList cdns;        // !< Contains domains for custom song validation, found in config/text/cdns.txt
     };
 

src/packet/packet_ct.cpp

@@ -43,9 +43,17 @@ void PacketCT::handlePacket(AreaData *area, AOClient &client) const
     }
 
     QString l_message = client.dezalgo(m_content[1]);
+
     if (l_message.length() == 0 || l_message.length() > ConfigManager::maxCharacters())
         return;
-    AOPacket *final_packet = PacketFactory::createPacket("CT", {client.name(), l_message, "0"});
+
+    if (!ConfigManager::filterList().isEmpty()) {
+        foreach (const QString &regex, ConfigManager::filterList()) {
+            QRegularExpression re(regex, QRegularExpression::CaseInsensitiveOption);
+            l_message.replace(re, "❌");
+        }
+    }
+
     if (l_message.at(0) == '/') {
         QStringList l_cmd_argv = l_message.split(" ", Qt::SkipEmptyParts);
         QString l_command = l_cmd_argv[0].trimmed().toLower();
@@ -58,6 +66,7 @@ void PacketCT::handlePacket(AreaData *area, AOClient &client) const
         return;
     }
     else {
+        AOPacket *final_packet = PacketFactory::createPacket("CT", {client.name(), l_message, "0"});
         client.getServer()->broadcast(final_packet, client.areaId());
     }
     emit client.logOOC((client.character() + " " + client.characterName()), client.name(), client.m_ipid, area->name(), l_message);

src/packet/packet_ms.cpp

@@ -138,6 +138,13 @@ AOPacket *PacketMS::validateIcPacket(AOClient &client) const
         return l_invalid;
     }
 
+    if (!ConfigManager::filterList().isEmpty()) {
+        foreach (const QString &regex, ConfigManager::filterList()) {
+            QRegularExpression re(regex, QRegularExpression::CaseInsensitiveOption);
+            l_incoming_msg.replace(re, "❌");
+        }
+    }
+
     if (client.m_is_gimped) {
         QString l_gimp_message = ConfigManager::gimpList().at((client.genRand(1, ConfigManager::gimpList().size() - 1)));
         l_incoming_msg = l_gimp_message;