[ADD/WIP] Start receiptwerk

XEPS-TBD.TXT

@@ -9,6 +9,8 @@ Somewhat implemented XEPs:
         systems don't seem *too* restrictive on one-another (unlike some 
         IM platforms I won't mention), so this doesn't sound too bad to do
                 HALF-IMPLEMENTED: Removing reacts won't work.
+    ~ https://xmpp.org/extensions/xep-0184.html
+        no one wants to send me receipts :(((((((((((((
 
 For future XEPs:
     - https://xmpp.org/extensions/xep-0421.html

src/AS.c

@@ -732,6 +732,38 @@ ASType(const ParseeConfig *c, char *user, char *room, bool status)
     Free(user); 
 }
 
+void
+ASPresence(const ParseeConfig *c, char *user, char *room, char *ev)
+{
+    HttpClientContext *ctx = NULL;
+    HashMap *json;
+    char *path;
+    if (!c || !user || !room || !ev)
+    {
+        return;
+    }
+
+    user = HttpUrlEncode(user);
+    room = HttpUrlEncode(room);
+    ev = HttpUrlEncode(ev);
+    path = StrConcat(6, 
+        "/_matrix/client/v3/rooms/",
+        room, "/receipt/m.read/", ev,
+        "?user_id=", user
+    );
+
+    json = HashMapCreate();
+    ctx = ParseeCreateRequest(c, HTTP_POST, path);
+    Free(path);
+    ASAuthenticateRequest(c, ctx);
+    ParseeSetRequestJSON(ctx, json);
+    JsonFree(json);
+        
+    HttpClientContextFree(ctx);
+    Free(user); 
+    Free(room); 
+    Free(ev); 
+}
 
 HashMap *
 ASGetUserConfig(const ParseeConfig *c, char *user, char *key)

src/Main.c

@@ -62,8 +62,9 @@ Main(void)
         }
     }
 
-    Log(LOG_NOTICE, "Creating JID table...");
+    Log(LOG_NOTICE, "Creating volatile tables...");
     ParseeInitialiseJIDTable();
+    ParseeInitialiseHeadTable();
     
     Log(LOG_NOTICE, "Setting up local Matrix user...");
     ASRegisterUser(parsee_conf, parsee_conf->sender_localpart);
@@ -112,6 +113,7 @@ end:
     CronStop(cron);
     CronFree(cron);
     ParseeFreeData(conf.handlerArgs);
+    ParseeDestroyHeadTable();
     ParseeDestroyJIDTable();
     return 0;
 }

src/MatrixEventHandler.c

@@ -266,13 +266,17 @@ end:
 void
 ParseeEventHandler(ParseeData *data, HashMap *event)
 {
-    char *event_type;
+    char *event_type, *event_id, *room_id;
     if (!data || !event)
     {
         return;
     }
 
     event_type = GrabString(event, 1, "type");
+    event_id = GrabString(event, 1, "event_id");
+    room_id = GrabString(event, 1, "room_id");
+    ParseePushHeadTable(room_id, event_id);
+
     if (StrEquals(event_type, "m.room.member"))
     {
         ParseeMemberHandler(data, event);        

src/Parsee/JIDTable.c

@@ -69,3 +69,63 @@ ParseeDestroyJIDTable(void)
     pthread_mutex_unlock(&lock);
     pthread_mutex_destroy(&lock);
 }
+
+static pthread_mutex_t head_lock;
+static HashMap *head_table = NULL;
+void
+ParseeInitialiseHeadTable(void)
+{
+    if (head_table)
+    {
+        return;
+    }
+    pthread_mutex_init(&head_lock, NULL);
+    pthread_mutex_lock(&head_lock);
+    head_table = HashMapCreate();
+    pthread_mutex_unlock(&head_lock);
+}
+void
+ParseePushHeadTable(char *room, char *event)
+{
+    if (!room || !event || !head_table)
+    {
+        return;
+    }
+    pthread_mutex_lock(&head_lock);
+    event = StrDuplicate(event);
+    Free(HashMapSet(head_table, room, event));
+    pthread_mutex_unlock(&head_lock);
+}
+char *
+ParseeLookupHead(char *room)
+{
+    char *event;
+    if (!room || !head_table)
+    {
+        return NULL;
+    }
+    pthread_mutex_lock(&head_lock);
+    event = StrDuplicate(HashMapGet(head_table, room));
+    pthread_mutex_unlock(&head_lock);
+
+    return event;
+}
+void
+ParseeDestroyHeadTable(void)
+{
+    char *key;
+    void *val;
+    if (!head_table)
+    {
+        return;
+    }
+    pthread_mutex_lock(&head_lock);
+    while (HashMapIterate(head_table, &key, &val))
+    {
+        Free(val);
+    }
+    HashMapFree(head_table);
+    head_table = NULL;
+    pthread_mutex_unlock(&head_lock);
+    pthread_mutex_destroy(&head_lock);
+}

src/XMPP/Stanza.c

@@ -82,6 +82,12 @@ XMPPSendPlainID(XMPPComponent *comp, char *fr, char *to, char *msg, char *type,
         XMLAddChild(message, xedit);
     }
 
+    {
+        XMLElement *request = XMLCreateTag("request");
+        XMLAddAttr(request, "xmlns", "urn:xmpp:receipts");
+        XMLAddChild(message, request);
+    }
+
     if (oob)
     {
         XMLElement *xoob, *oob_data, *oob_url;

src/XMPPThread.c

@@ -29,6 +29,7 @@
             AdvertiseSimple("urn:xmpp:message-correct:0") \
             AdvertiseSimple("urn:xmpp:reactions:0") \
             AdvertiseSimple("urn:xmpp:styling:0") \
+            AdvertiseSimple("urn:xmpp:receipts") \
             AdvertiseSimple("urn:xmpp:reply:0") \
             AdvertiseSimple("jabber:x:oob") \
             AdvertiseSimple("vcard-temp") \
@@ -443,21 +444,48 @@ MessageStanza(ParseeData *args, XMLElement *stanza, XMPPThread *thr)
         decode_from = NULL;
         from_matrix = NULL;
     }
-    else if (XMLookForTKV(stanza, "active", "xmlns", CHAT_STATES))
+    if (XMLookForTKV(stanza, "active", "xmlns", CHAT_STATES))
     {
+        char *latest = NULL;
         decode_from = ParseeLookupJID(from);
         from_matrix = ParseeEncodeJID(args->config, decode_from, true);
         mroom_id = ParseeGetBridgedRoom(args, stanza);
-        
+
+        latest = ParseeLookupHead(mroom_id);
+
         ASType(args->config, from_matrix, mroom_id, false);
+        ASPresence(args->config, from_matrix, mroom_id, latest);
 
         Free(decode_from);
         Free(from_matrix);
+        Free(latest);
         Free(mroom_id);
         mroom_id = NULL;
         decode_from = NULL;
         from_matrix = NULL;
     }
+    if (XMLookForTKV(stanza, "paused", "xmlns", CHAT_STATES) ||
+        XMLookForTKV(stanza, "received", "xmlns", "urn:xmpp:receipts"))
+    {
+        /* TODO: Use stanza ID if possible */
+        char *latest = NULL;
+        decode_from = ParseeLookupJID(from);
+        from_matrix = ParseeEncodeJID(args->config, decode_from, true);
+        mroom_id = ParseeGetBridgedRoom(args, stanza);
+
+        latest = ParseeLookupHead(mroom_id);
+
+        ASPresence(args->config, from_matrix, mroom_id, latest);
+
+        Free(decode_from);
+        Free(from_matrix);
+        Free(latest);
+        Free(mroom_id);
+        mroom_id = NULL;
+        decode_from = NULL;
+        from_matrix = NULL;
+
+    }
 #undef CHAT_STATES
     body = XMLookForUnique(stanza, "body");
     if (!body)
@@ -978,10 +1006,6 @@ PresenceStanza(ParseeData *args, XMLElement *stanza)
             char *from_matrix = ParseeDecodeMXID(decode_from);
             char *affiliation = HashMapGet(item->attrs, "affiliation");
 
-
-            Log(LOG_INFO, "Acting on %s", from_matrix);
-            Log(LOG_INFO, "OID=%s DF=%s", oid, decode_from);
-
             if (StrEquals(affiliation, "outcast"))
             {
                 ASBan(args->config, room, from_matrix);

src/include/AS.h

@@ -40,6 +40,7 @@ extern HashMap * ASFind(const ParseeConfig *, char *, char *);
  * Said body is freed during the function's execution. */
 extern char * ASSend(const ParseeConfig *, char *, char *, char *, HashMap *);
 extern void ASType(const ParseeConfig *, char *, char *, bool);
+extern void ASPresence(const ParseeConfig *, char *, char *, char *);
 
 /* Sets a state event with a specific type and body */
 extern void ASSetState(const ParseeConfig *conf, char *id, char *type, char *key, char *mask, HashMap *event);

src/include/Parsee.h

@@ -202,6 +202,11 @@ extern void ParseePushJIDTable(char *muc, char *bare);
 extern char *ParseeLookupJID(char *muc);
 extern void ParseeDestroyJIDTable(void);
 
+extern void ParseeInitialiseHeadTable(void);
+extern void ParseePushHeadTable(char *room, char *id);
+extern char *ParseeLookupHead(char *room);
+extern void ParseeDestroyHeadTable(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, char *reason);