Show messages on /group add and /group remove

closes #189
closes #190

src/common.c

@@ -37,6 +37,9 @@
 // and page size is at least 4KB
 #define READ_BUF_SIZE 4088
 
+// for generating ids
+static int unique_id = 0;
+
 struct curl_data_t
 {
     char *buffer;
@@ -394,6 +397,19 @@ xdg_get_data_home(void)
     }
 }
 
+char *
+get_unique_id(void)
+{
+    char *result = NULL;
+    unique_id++;
+    GString *result_str = g_string_new("");
+    g_string_printf(result_str, "prof%d", unique_id);
+    result = result_str->str;
+    g_string_free(result_str, FALSE);
+
+    return result;
+}
+
 static size_t
 _data_callback(void *ptr, size_t size, size_t nmemb, void *data)
 {

src/common.h

@@ -92,4 +92,6 @@ const char * string_from_resource_presence(resource_presence_t presence);
 resource_presence_t resource_presence_from_string(const char * const str);
 contact_presence_t contact_presence_from_resource_presence(resource_presence_t resource_presence);
 
+char * get_unique_id(void);
+
 #endif

src/profanity.c

@@ -164,6 +164,22 @@ prof_handle_not_in_group(const char * const contact,
     ui_current_page_off();
 }
 
+void
+prof_handle_group_add(const char * const contact,
+    const char * const group)
+{
+    ui_group_added(contact, group);
+    ui_current_page_off();
+}
+
+void
+prof_handle_group_remove(const char * const contact,
+    const char * const group)
+{
+    ui_group_removed(contact, group);
+    ui_current_page_off();
+}
+
 void
 prof_handle_error_message(const char *from, const char *err_msg)
 {

src/profanity.h

@@ -84,5 +84,7 @@ void prof_handle_roster_add(const char * const barejid, const char * const name)
 void prof_handle_roster_remove(const char * const barejid);
 void prof_handle_already_in_group(const char * const contact, const char * const group);
 void prof_handle_not_in_group(const char * const contact, const char * const group);
+void prof_handle_group_add(const char * const contact, const char * const group);
+void prof_handle_group_remove(const char * const contact, const char * const group);
 
 #endif

src/ui/core.c

@@ -467,6 +467,18 @@ ui_contact_not_in_group(const char * const contact, const char * const group)
     cons_show("%s is not currently in group %s", contact, group);
 }
 
+void
+ui_group_added(const char * const contact, const char * const group)
+{
+    cons_show("%s added to group %s", contact, group);
+}
+
+void
+ui_group_removed(const char * const contact, const char * const group)
+{
+    cons_show("%s removed from group %s", contact, group);
+}
+
 void
 ui_contact_online(const char * const barejid, const char * const resource,
     const char * const show, const char * const status, GDateTime *last_activity)

src/ui/ui.h

@@ -116,6 +116,8 @@ void ui_roster_add(const char * const barejid, const char * const name);
 void ui_roster_remove(const char * const barejid);
 void ui_contact_already_in_group(const char * const contact, const char * const group);
 void ui_contact_not_in_group(const char * const contact, const char * const group);
+void ui_group_added(const char * const contact, const char * const group);
+void ui_group_removed(const char * const contact, const char * const group);
 
 // contact status functions
 void ui_status_room(const char * const contact);

src/xmpp/roster.c

@@ -21,6 +21,7 @@
  */
 
 #include <assert.h>
+#include <stdlib.h>
 #include <string.h>
 
 #include <glib.h>
@@ -55,12 +56,26 @@ static GHashTable *contacts;
 // nickname to jid map
 static GHashTable *name_to_barejid;
 
+// callback data for group commands
+typedef struct _group_data {
+    char *name;
+    char *group;
+} GroupData;
+
 // event handlers
 static int _roster_handle_push(xmpp_conn_t * const conn,
     xmpp_stanza_t * const stanza, void * const userdata);
 static int _roster_handle_result(xmpp_conn_t * const conn,
     xmpp_stanza_t * const stanza, void * const userdata);
 
+// id handlers
+static int
+_group_add_handler(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza,
+    void * const userdata);
+static int
+_group_remove_handler(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza,
+    void * const userdata);
+
 // helper functions
 static void _add_name_and_barejid(const char * const name,
     const char * const barejid);
@@ -141,7 +156,7 @@ roster_add_new(const char * const barejid, const char * const name)
 {
     xmpp_conn_t * const conn = connection_get_conn();
     xmpp_ctx_t * const ctx = connection_get_ctx();
-    xmpp_stanza_t *iq = stanza_create_roster_set(ctx, barejid, name, NULL);
+    xmpp_stanza_t *iq = stanza_create_roster_set(ctx, NULL, barejid, name, NULL);
     xmpp_send(conn, iq);
     xmpp_stanza_release(iq);
 }
@@ -279,7 +294,7 @@ roster_change_name(const char * const barejid, const char * const new_name)
 
         xmpp_conn_t * const conn = connection_get_conn();
         xmpp_ctx_t * const ctx = connection_get_ctx();
-        xmpp_stanza_t *iq = stanza_create_roster_set(ctx, barejid, new_name,
+        xmpp_stanza_t *iq = stanza_create_roster_set(ctx, NULL, barejid, new_name,
             groups);
         xmpp_send(conn, iq);
         xmpp_stanza_release(iq);
@@ -312,13 +327,40 @@ roster_add_to_group(const char * const group, const char * const barejid)
 
         xmpp_conn_t * const conn = connection_get_conn();
         xmpp_ctx_t * const ctx = connection_get_ctx();
-        xmpp_stanza_t *iq = stanza_create_roster_set(ctx, barejid,
+
+        // add an id handler to handle the response
+        char *unique_id = get_unique_id();
+        GroupData *data = malloc(sizeof(GroupData));
+        data->group = strdup(group);
+        if (p_contact_name(contact) != NULL) {
+            data->name = strdup(p_contact_name(contact));
+        } else {
+            data->name = strdup(p_contact_barejid(contact));
+        }
+
+        xmpp_id_handler_add(conn, _group_add_handler, unique_id, data);
+        xmpp_stanza_t *iq = stanza_create_roster_set(ctx, unique_id, barejid,
             p_contact_name(contact), new_groups);
         xmpp_send(conn, iq);
         xmpp_stanza_release(iq);
+        free(unique_id);
     }
 }
 
+static int
+_group_add_handler(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza,
+    void * const userdata)
+{
+    if (userdata != NULL) {
+        GroupData *data = userdata;
+        prof_handle_group_add(data->name, data->group);
+        free(data->name);
+        free(data->group);
+        free(userdata);
+    }
+    return 0;
+}
+
 void
 roster_remove_from_group(const char * const group, const char * const barejid)
 {
@@ -345,14 +387,41 @@ roster_remove_from_group(const char * const group, const char * const barejid)
 
         xmpp_conn_t * const conn = connection_get_conn();
         xmpp_ctx_t * const ctx = connection_get_ctx();
-        xmpp_stanza_t *iq = stanza_create_roster_set(ctx, barejid,
+
+        // add an id handler to handle the response
+        char *unique_id = get_unique_id();
+        GroupData *data = malloc(sizeof(GroupData));
+        data->group = strdup(group);
+        if (p_contact_name(contact) != NULL) {
+            data->name = strdup(p_contact_name(contact));
+        } else {
+            data->name = strdup(p_contact_barejid(contact));
+        }
+
+        xmpp_id_handler_add(conn, _group_remove_handler, unique_id, data);
+        xmpp_stanza_t *iq = stanza_create_roster_set(ctx, unique_id, barejid,
             p_contact_name(contact), new_groups);
         xmpp_send(conn, iq);
         xmpp_stanza_release(iq);
+        free(unique_id);
     }
 
 }
 
+static int
+_group_remove_handler(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza,
+    void * const userdata)
+{
+    if (userdata != NULL) {
+        GroupData *data = userdata;
+        prof_handle_group_remove(data->name, data->group);
+        free(data->name);
+        free(data->group);
+        free(userdata);
+    }
+    return 0;
+}
+
 gboolean
 roster_has_pending_subscriptions(void)
 {

src/xmpp/stanza.c

@@ -119,12 +119,15 @@ stanza_create_roster_remove_set(xmpp_ctx_t *ctx, const char * const barejid)
 }
 
 xmpp_stanza_t *
-stanza_create_roster_set(xmpp_ctx_t *ctx, const char * const jid,
+stanza_create_roster_set(xmpp_ctx_t *ctx, const char * const id,
-    const char * const handle, GSList *groups)
+    const char * const jid, const char * const handle, GSList *groups)
 {
     xmpp_stanza_t *iq = xmpp_stanza_new(ctx);
     xmpp_stanza_set_name(iq, STANZA_NAME_IQ);
     xmpp_stanza_set_type(iq, STANZA_TYPE_SET);
+    if (id != NULL) {
+        xmpp_stanza_set_id(iq, id);
+    }
 
     xmpp_stanza_t *query = xmpp_stanza_new(ctx);
     xmpp_stanza_set_name(query, STANZA_NAME_QUERY);

src/xmpp/stanza.h

@@ -179,8 +179,8 @@ xmpp_stanza_t * stanza_create_disco_items_iq(xmpp_ctx_t *ctx, const char * const
 char * stanza_get_status(xmpp_stanza_t *stanza, char *def);
 char * stanza_get_show(xmpp_stanza_t *stanza, char *def);
 
-xmpp_stanza_t * stanza_create_roster_set(xmpp_ctx_t *ctx, const char * const jid,
+xmpp_stanza_t * stanza_create_roster_set(xmpp_ctx_t *ctx, const char * const id,
-    const char * const handle, GSList *groups);
+    const char * const jid, const char * const handle, GSList *groups);
 xmpp_stanza_t * stanza_create_roster_remove_set(xmpp_ctx_t *ctx,
     const char * const barejid);