[ADD/WIP] No-fly list for Matrix users

Imagine being in Parsee jail.

src/MatrixEventHandler.c

@@ -105,6 +105,8 @@ ParseeBotHandler(ParseeData *data, HashMap *event)
     }
     body++;
 #define BAN_USER    "ban-user "
+#define BAN_LIST    "ban-list "
+#define LS_USERS    "ls-flying"
     if (!strncmp(body, BAN_USER, strlen(BAN_USER)))
     {
         char user[256] = { 0 };
@@ -126,6 +128,54 @@ ParseeBotHandler(ParseeData *data, HashMap *event)
         ));
         Free(msg);
     }
+    else if (!strncmp(body, LS_USERS, strlen(LS_USERS)))
+    {
+        DbRef *listed = DbLock(data->db, 1, "global_bans");
+        HashMap *json = DbJson(listed);
+        char *str = NULL, *tmp = NULL, *banned;
+        JsonValue *val;
+
+        while (HashMapIterate(json, &banned, (void **) &val))
+        {
+            tmp = str;
+            str = StrConcat(4, str, "- ", banned, "\n");
+            Free(tmp);
+        }
+
+        Free(ASSend(
+            data->config, id, profile, 
+            "m.room.message",
+            MatrixCreateNotice("No-fly listed users:")
+        ));
+        Free(ASSend(
+            data->config, id, profile, 
+            "m.room.message",
+            MatrixCreateNotice(str)
+        ));
+
+        Free(str);
+        DbUnlock(data->db, listed);
+    }
+    else if (!strncmp(body, BAN_LIST, strlen(BAN_LIST)))
+    {
+        char user[256] = { 0 };
+        char *msg;
+
+        body += strlen(BAN_USER);
+        if (sscanf(body, "%255s", &user) != 1)
+        {
+            goto end;
+        }
+
+        msg = StrConcat(3, "Banning '", user, "'...");
+        Free(ASSend(
+            data->config, id, profile, 
+            "m.room.message",
+            MatrixCreateNotice(msg)
+        ));
+        Free(msg);
+        ParseeGlobalBan(data, user);
+    }
 end: 
     Free(profile);
 }
@@ -155,7 +205,8 @@ ParseeMessageHandler(ParseeData *data, HashMap *event)
     direct = JsonValueAsBoolean(HashMapGet(json, "is_direct"));
     DbUnlock(data->db, ref);
 
-    if (ParseeIsPuppet(data->config, sender))
+    if (ParseeIsPuppet(data->config, sender) || 
+        ParseeManageBan(data, sender, id))
     {
         Free(chat_id);
         Free(reply_id);

src/Parsee/Data.c

@@ -102,9 +102,9 @@ ParseeCleanup(void *datp)
     } \
     while (0)
 
-        CleanupField(stanza,    15 MINUTES);
+        CleanupField(stanza,    1 HOURS);
-        CleanupField(event,     15 MINUTES);
+        CleanupField(event,     1 HOURS);
-        CleanupField(id,        15 MINUTES);
+        CleanupField(id,        1 HOURS);
 
         DbUnlock(data->db, ref);
     }
@@ -516,3 +516,48 @@ end:
     DbUnlock(data->db, ref);
     return ret;
 }
+void
+ParseeGlobalBan(ParseeData *data, char *user)
+{
+    DbRef *ref;
+    HashMap *j;
+    if (!data || !user)
+    {
+        return;
+    }
+
+    ref = DbLock(data->db, 1, "global_bans");
+    if (!ref)
+    {
+        ref = DbCreate(data->db, 1, "global_bans");
+    }
+
+    j = DbJson(ref);
+
+    JsonValueFree(HashMapSet(j, user, JsonValueObject(HashMapCreate())));
+
+    DbUnlock(data->db, ref);
+}
+bool
+ParseeManageBan(ParseeData *data, char *user, char *room)
+{
+    DbRef *ref;
+    HashMap *j;
+    bool banned;
+    if (!data || !user)
+    {
+        return false;
+    }
+
+    ref = DbLock(data->db, 1, "global_bans");
+    j = DbJson(ref);
+    banned = !!HashMapGet(j, user);
+    DbUnlock(data->db, ref);
+
+    if (banned && room)
+    {
+        ASBan(data->config, room, user);
+    }
+    
+    return banned;
+}

src/XMPPThread.c

@@ -12,6 +12,16 @@
 #include <XML.h>
 #include <AS.h>
 
+#define IQ_ADVERT \
+            AdvertiseSimple("http://jabber.org/protocol/chatstates") \
+            AdvertiseSimple("urn:xmpp:message-correct:0") \
+            AdvertiseSimple("urn:xmpp:reactions:0") \
+            AdvertiseSimple("urn:xmpp:styling:0") \
+            AdvertiseSimple("urn:xmpp:reply:0") \
+            AdvertiseSimple("urn:xmpp:sid:0") \
+            AdvertiseSimple("jabber:x:oob") \
+            AdvertiseSimple("urn:parsee:x-parsee:0") \
+            AdvertiseSimple("urn:parsee:jealousy:0")
 
 static pthread_mutex_t cond_var_lock = PTHREAD_MUTEX_INITIALIZER;
 static pthread_cond_t cond_var = PTHREAD_COND_INITIALIZER;
@@ -59,7 +69,6 @@ MessageStanza(ParseeData *args, XMLElement *stanza)
     room = ParseeFindDMRoom(args, to, from);
     data = ArrayGet(body->children, 0);
 
-    /* TODO: Consider having rich messages. */
     chat_id = ParseeGetFromMUCID(args, from);
     mroom_id = ParseeGetRoomID(args, chat_id);
     if (room)
@@ -76,7 +85,6 @@ MessageStanza(ParseeData *args, XMLElement *stanza)
         char *event_id  = NULL;
         char *replaced  = XMPPGetReplacedID(stanza);
 
-        /* TODO: Create smarter puppet names */
         if (ParseeVerifyStanza(args, chat_id, s_id_str) && !replaced)
         {
             XMLElement *oob, *oob_data;
@@ -203,18 +211,10 @@ IQDiscoGet(ParseeData *args, XMPPComponent *jabber, XMLElement *stanza)
                                 XMLAddAttr(feature, "var", f); \
                                 XMLAddChild(query, feature); \
                             } \
-                            while (0)
+                            while (0);
 
-            AdvertiseSimple("urn:xmpp:message-correct:0");
-            AdvertiseSimple("urn:xmpp:reactions:0");
-            AdvertiseSimple("urn:xmpp:styling:0");
-            AdvertiseSimple("urn:xmpp:reply:0");
-            AdvertiseSimple("urn:xmpp:sid:0");
-            AdvertiseSimple("jabber:x:oob");
-
-            AdvertiseSimple("urn:parsee:x-parsee:0");
-            AdvertiseSimple("urn:parsee:jealousy:0");
             /* TODO: Advertise more things */
+            IQ_ADVERT
 #undef AdvertiseSimple
         }
         XMLAddChild(iq_reply, query);
@@ -271,10 +271,6 @@ PresenceStanza(ParseeData *args, XMLElement *stanza)
         {
             ParseePushJIDTable(oid, jid);
         }
-        /* TODO: Make proper mapping in some sort of soft-DB.
-         * I am saying soft-DB, because this does not need to be 
-         * stored inside the actual database, as we retrieve it at 
-         * startup everytime from the service anyways. */
     }
 #undef MUC_USER_NS
 }

src/include/Parsee.h

@@ -184,4 +184,12 @@ extern void ParseeInitialiseJIDTable(void);
 extern void ParseePushJIDTable(char *muc, char *bare);
 extern char *ParseeLookupJID(char *muc);
 extern void ParseeDestroyJIDTable(void);
+
+/* Globally bans a Matrix user from ever interacting with Parsee, and bans 
+ * them from bridged rooms where the bot has administrator. */
+extern void ParseeGlobalBan(ParseeData *, char *user);
+
+/* Verifies if a user was globally banned. If so, then apply actions to the 
+ * room ID */
+extern bool ParseeManageBan(ParseeData *, char *user, char *room);
 #endif