[ADD/WIP/AYA] Sending errors, voice reqs, Ayawork.

Ayaya!

XEPS-TBD.TXT

@@ -48,9 +48,9 @@ THESE I WANT TO SEND THEM A NICE, BRIGHT GIFT:
 
 
 Not XEPs, but ideas that _needs_ to be added:
+    ~ "also it [Bifrost] doesn't respect voice either" -> Send a form on moderated 
+      MUCs (which is standard, so its not too bad!). Currently WIP, and barely tested.
     ~ "GIVE THE PUPPETS APPROPRIATE PLS/ROLES" - Hydro/t4d
-    - "also it [Bifrost] doesn't respect voice either" -> Send a form on moderated 
-      MUCs (which is standard, so its not too bad!)
     - Standalone/Static Parsee, ideally as small as it can be(if not as APE).
     - https://www.youtube.com/watch?v=InL414iDZmY
 

src/XMPP/MUC.c

@@ -106,3 +106,64 @@ XMPPGetMUCName(MUCInfo info)
 
     return name;
 }
+void
+XMPPRequestVoice(XMPPComponent *jabber, char *from, char *muc)
+{
+    XMLElement *stanza;
+    char *identifier;
+    if (!jabber || !from || !muc)
+    {
+        return;
+    }
+
+    pthread_mutex_lock(&jabber->write_lock);
+    stanza = XMLCreateTag("message");
+    XMLAddAttr(stanza, "id", (identifier = StrRandom(32)));
+    XMLAddAttr(stanza, "from", from);
+    XMLAddAttr(stanza, "to", muc);
+    {
+        XMLElement *x = XMLCreateTag("x");
+        XMLAddAttr(x, "xmlns", "jabber:x:data");
+        XMLAddAttr(x, "type", "submit");
+        {
+            XMLElement *field;
+
+            field = XMLCreateTag("field");
+            XMLAddAttr(field, "var", "FORM_TYPE");
+            {
+                XMLElement *value = XMLCreateTag("value");
+                {
+                    XMLElement *data = XMLCreateText(
+                        "http://jabber.org/protocol/muc#request"
+                    );
+                    XMLAddChild(value, data);
+                }
+                XMLAddChild(field, value);
+            }
+            XMLAddChild(x, field);
+
+            field = XMLCreateTag("field");
+            XMLAddAttr(field, "var", "muc#role");
+            XMLAddAttr(field, "type", "list-single");
+            XMLAddAttr(field, "label", "Requested role");
+            {
+                XMLElement *value = XMLCreateTag("value");
+                {
+                    XMLElement *data = XMLCreateText(
+                        "participant"
+                    );
+                    XMLAddChild(value, data);
+                }
+                XMLAddChild(field, value);
+            }
+            XMLAddChild(x, field);
+        }
+        XMLAddChild(stanza, x);
+    }
+    XMLEncode(jabber->stream, stanza);
+    StreamFlush(jabber->stream);
+    pthread_mutex_unlock(&jabber->write_lock);
+
+    XMLFreeElement(stanza);
+    Free(identifier);
+}

src/XMPP/Stanza.c

@@ -540,3 +540,44 @@ XMPPDiscoAdvertises(XMLElement *disco, char *var)
 
     return !!XMLookForTKV(query, "feature", "var", var);
 }
+
+char *
+XMPPGetErrtype(XMLElement *stanza)
+{
+    XMLElement *error = XMLookForUnique(stanza, "error");
+    XMLElement *type = NULL;
+    if (!error)
+    {
+        return NULL;
+    }
+
+    type = ArrayGet(error->children, 0);
+    if (!type)
+    {
+        return NULL;
+    }
+
+    return type->name;
+}
+
+char *
+XMPPGetErrtext(XMLElement *stanza)
+{
+    XMLElement *error = XMLookForUnique(stanza, "error");
+    XMLElement *text = NULL, *data;
+    if (!error)
+    {
+        return NULL;
+    }
+
+    text = XMLookForUnique(error, "text");
+    if (!text)
+    {
+        return NULL;
+    }
+
+    data = ArrayGet(text->children, 0);
+
+    return data ? data->data : NULL;
+
+}

src/XMPPThread/Stanzas/Message.c

@@ -24,7 +24,8 @@ MessageStanza(ParseeData *args, XMLElement *stanza, XMPPThread *thr)
     char *retracted = XMPPGetRetractedID(stanza);
     char *reply_to  = XMPPGetReply(stanza);
     char *moderated = XMPPGetModeration(stanza);
-    bool chat       = StrEquals(HashMapGet(stanza->attrs, "type"), "chat");
+    char *type      = HashMapGet(stanza->attrs, "type");
+    bool chat       = StrEquals(type, "chat");
     size_t i;
 
     to = NULL;
@@ -39,6 +40,45 @@ MessageStanza(ParseeData *args, XMLElement *stanza, XMPPThread *thr)
         return false;
     }
 
+    if (StrEquals(type, "error"))
+    {
+        char *type, *text, *user, *parsee;
+        char *message, *room;
+
+        from = HashMapGet(stanza->attrs, "from");
+        to = HashMapGet(stanza->attrs, "to");
+
+        /* Tiny little trick. */
+        XMLAddAttr(stanza, "type", "groupchat");
+
+        parsee = ParseeMXID(args);
+        type = XMPPGetErrtype(stanza);
+        text = XMPPGetErrtext(stanza);
+        user = ParseeDecodeMXID(to);
+
+        /* Avoid fun hypothetical cases of looping. */
+        if (StrEquals(parsee, user))
+        {
+            goto end_error;
+        }
+
+        message = StrConcat(3, type, ": ", text);
+        room = ParseeGetBridgedRoom(args, stanza);
+        Free(ASSend(
+            args->config, room, parsee, 
+            "m.room.message", 
+            MatrixCreateNotice(message)
+        ));
+
+end_error:
+        XMLFreeElement(stanza);
+        Free(message);
+        Free(parsee);
+        Free(room);
+        Free(user);
+        return false;
+    }
+
     if (moderated)
     {
         /* TODO: Parsee MUST check if it is a valid MUC */

src/XMPPThread/Stanzas/Presence.c

@@ -79,6 +79,7 @@ PresenceStanza(ParseeData *args, XMLElement *stanza)
         char *decode_from, *real_matrix;
         char *matrix_user_pl = ParseeEncodeJID(args->config, trim, false);
         char *affiliation = HashMapGet(item->attrs, "affiliation");
+        char *role = HashMapGet(item->attrs, "role");
         int power_level = 0;
         char *parsee = ParseeMXID(args);
 
@@ -117,6 +118,24 @@ PresenceStanza(ParseeData *args, XMLElement *stanza)
             power_level = -1;
         }
 
+        if (StrEquals(role, "visitor"))
+        {
+            char *parsee = ParseeJID(args);
+            if (!StrEquals(HashMapGet(stanza->attrs, "to"), parsee) &&
+                IsStatus(110))
+            {
+                char *muc = ParseeTrimJID(HashMapGet(stanza->attrs, "from"));
+                char *usr = HashMapGet(stanza->attrs, "to");
+                
+                /* Ask for voice */
+                XMPPRequestVoice(args->jabber, usr, muc);
+
+                Free(muc);
+            }
+
+            Free(parsee);
+        }
+
         /* Set the user's PL
          * TODO: Do NOT change the PL of *real* people nilly-willy.
          * In some scenarios, this is really bad behaviour. */

src/include/AS.h

@@ -72,10 +72,19 @@ extern HashMap *ASGetPL(const ParseeConfig *conf, char *id);
  * See-Also: ASGetPL */
 extern void ASSetPL(const ParseeConfig *conf, char *id, HashMap *m);
 
-/* Creates a room, with a masquerade user as its creator. This function 
- * returns it's ID if it exists. */
+/** Creates a room, with a masquerade user ({by}) as its creator and an 
+ * optional {alias}.
+ * --------
+ * Returns: a valid room ID[HEAP] | NULL
+ * Modifies: NOTHING
+ * See-Also: ASCreateDM */
 extern char * ASCreateRoom(const ParseeConfig *c, char *by, char *alias);
 
+/** Creates a new DM {with} a Matrix user, from a puppet {by}
+ * --------
+ * Returns: a valid room ID[HEAP] | NULL
+ * Modifies: NOTHING
+ * See-Also: ASCreateRoom */
 extern char * ASCreateDM(const ParseeConfig *c, char *by, char *with);
 
 /** Sets the user's global display{name}

src/include/XMPP.h

@@ -107,4 +107,26 @@ extern bool XMPPHasError(XMLElement *stanza, char *type);
 extern XMLElement * XMPPSendDisco(XMPPComponent *jabber, char *from, char *to);
 
 extern bool XMPPDiscoAdvertises(XMLElement *disco, char *var);
+
+/** Requests for 'voice' in a moderated MUC as a user by sending a specific 
+ * form.
+ * -----------
+ * Returns: NOTHING
+ * Modifies: the XMPP MUCs state
+ * See-Also: https://xmpp.org/extensions/xep-0045.html#requestvoice */
+extern void XMPPRequestVoice(XMPPComponent *jabber, char *from, char *muc);
+
+/** Retrieves the error type in a stanza if existent.
+ * -----------------
+ * Returns: a valid string error type[stanza] | NULL
+ * Modifies: NOTHING
+ * See-Also: XMPPGetErrtext */
+extern char * XMPPGetErrtype(XMLElement *stanza);
+
+/** Retrieves the error text in a stanza if existent.
+ * -----------------
+ * Returns: a valid string error text[stanza] | NULL
+ * Modifies: NOTHING
+ * See-Also: XMPPGetErrtype */
+extern char * XMPPGetErrtext(XMLElement *stanza);
 #endif