From c09bb4e4434667debc0e28d25b5a358ef4ffb498 Mon Sep 17 00:00:00 2001
From: defanor <defanor@uberspace.net>
Date: Sat, 4 Jul 2020 11:48:43 +0300
Subject: Fill weechat nicklists

The server buffer's nicklist is filled with roster items, and MUC
buffers' nicklists are filled with active MUC participants. No MUC
role indications, groups, or contact presence tracking yet.
---
 examples/weechat.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

(limited to 'examples/weechat.c')

diff --git a/examples/weechat.c b/examples/weechat.c
index d247eb3..0c26f6e 100644
--- a/examples/weechat.c
+++ b/examples/weechat.c
@@ -140,6 +140,7 @@ int my_xml_in_cb (struct weechat_rexmpp *wr, xmlNodePtr node) {
         buf = weechat_buffer_new (from,
                                   &query_input_cb, wr, NULL,
                                   &query_close_cb, wr, NULL);
+        weechat_buffer_set(buf, "nicklist", "1");
       }
       if (resource_removed) {
         from[i] = '/';            /* restore */
@@ -157,6 +158,39 @@ int my_xml_in_cb (struct weechat_rexmpp *wr, xmlNodePtr node) {
       xmlFree(from);
     }
   }
+  if (rexmpp_xml_match(node, "jabber:client", "presence")) {
+    char *presence_type = xmlGetProp(node, "type");
+    char *jid = xmlGetProp(node, "from");
+    int i;
+    char *resource = "";
+    for (i = 0; i < strlen(jid); i++) {
+      if (jid[i] == '/') {
+        jid[i] = 0;
+        resource = jid + i + 1;
+        break;
+      }
+    }
+    if (rexmpp_xml_find_child(node, "http://jabber.org/protocol/muc#user", "x")) {
+      /* Update MUC nicklist */
+      struct t_gui_buffer *buf = weechat_buffer_search("rexmpp", jid);
+      if (buf != NULL) {
+        if (presence_type != NULL && strcmp(presence_type, "unavailable") == 0) {
+          struct t_gui_nick *nick =
+            weechat_nicklist_search_nick(buf, NULL, resource);
+          if (nick != NULL) {
+            weechat_nicklist_remove_nick(buf, nick);
+          }
+        } else {
+          weechat_nicklist_add_nick(buf, NULL, resource,
+                                    "bar_fg", "", "lightgreen", 1);
+        }
+      }
+    }
+    free(jid);
+    if (presence_type != NULL) {
+      free(presence_type);
+    }
+  }
   free(xml_buf);
   return 0;
 }
@@ -194,6 +228,7 @@ my_input_cb (const struct weechat_rexmpp *wr, void *data,
       buf = weechat_buffer_new (jid,
                                 &query_input_cb, wr, NULL,
                                 &query_close_cb, wr, NULL);
+      weechat_buffer_set(buf, "nicklist", "1");
     }
   } else if (input_data[0] == 'j' && input_data[1] == ' ') {
     char *jid = input_data + 2;
@@ -219,14 +254,35 @@ my_input_cb (const struct weechat_rexmpp *wr, void *data,
       buf = weechat_buffer_new (jid,
                                 &muc_input_cb, wrm, NULL,
                                 &muc_close_cb, wrm, NULL);
+      weechat_buffer_set(buf, "nicklist", "1");
     }
   }
   return WEECHAT_RC_OK;
 }
 
+void my_roster_modify_cb (struct weechat_rexmpp *wr, xmlNodePtr item) {
+  char *subscription = xmlGetProp(item, "subscription");
+  char *jid = xmlGetProp(item, "jid");
+  if (subscription != NULL && strcmp(subscription, "remove") == 0) {
+    /* delete */
+    weechat_nicklist_remove_nick(wr->server_buffer, jid);
+  } else {
+    /* add or modify */
+    weechat_nicklist_add_nick(wr->server_buffer, NULL, jid,
+                              "bar_fg", "", "lightgreen", 1);
+  }
+  free(jid);
+  if (subscription != NULL) {
+    free(subscription);
+  }
+}
+
 int
 my_close_cb (struct weechat_rexmpp *wr, void *data, struct t_gui_buffer *buffer)
 {
+  /* todo: close MUC buffers first? or at least mark them somehow, so
+     that they won't attempt to send "unavailable" presence on
+     closing. */
   wr->server_buffer = NULL;
   rexmpp_stop(&wr->rexmpp_state);
   return WEECHAT_RC_OK;
@@ -331,6 +387,7 @@ command_xmpp_cb (const void *pointer, void *data,
     wr->server_buffer = weechat_buffer_new (argv[1],
                                             &my_input_cb, wr, NULL,
                                             &my_close_cb, wr, NULL);
+    weechat_buffer_set(wr->server_buffer, "nicklist", "1");
     wr->password = strdup(argv[2]);
     wr->hooks = weechat_arraylist_new(42, 0, 0, NULL, NULL, hook_free_cb, NULL);
     rexmpp_t *s = &wr->rexmpp_state;
@@ -339,6 +396,7 @@ command_xmpp_cb (const void *pointer, void *data,
     s->sasl_property_cb = my_sasl_property_cb;
     s->xml_in_cb = my_xml_in_cb;
     s->xml_out_cb = my_xml_out_cb;
+    s->roster_modify_cb = my_roster_modify_cb;
     fd_set read_fds, write_fds;
     FD_ZERO(&read_fds);
     FD_ZERO(&write_fds);
-- 
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