New Command: Delete OMEMO device list

With new new comamnd delete-device-list (mode omemo), the PEP node
eu.siacs.conversations.axolotl.devicelist will be delete.

doc/xmppc.1

@@ -1,13 +1,13 @@
 '\" t
 .\"     Title: xmppc
 .\"    Author: [see the "AUTHOR" section]
-.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
-.\"      Date: 05/16/2020
+.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
+.\"      Date: 07/29/2023
 .\"    Manual: \ \&
 .\"    Source: \ \&
 .\"  Language: English
 .\"
-.TH "XMPPC" "1" "05/16/2020" "\ \&" "\ \&"
+.TH "XMPPC" "1" "07/29/2023" "\ \&" "\ \&"
 .\" -----------------------------------------------------------------
 .\" * Define some portability stuff
 .\" -----------------------------------------------------------------
@@ -149,6 +149,18 @@ OMEMO Mode (XEP\-0384)
 \fBlist\fR
 \- List the device IDs and fingerprints
 .RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+\fBdelete\-device\-list\fR
+\- Deletes the OMEMO device list
+.RE
 .RE
 .PP
 \fB\-m openpgp\fR
@@ -352,7 +364,7 @@ See https://codeberg\&.org/Anoxinon_e\&.V\&./xmppc/issues
 .sp -1
 .IP \(bu 2.3
 .\}
-DebXWoody (OpenPGP: A602F76893F138B4A8EFDDD5C2DC916F35751C24)
+DebXWoody
 .RE
 .SH "RESOURCES"
 .sp

doc/xmppc.1.adoc

@@ -71,6 +71,7 @@ PGP Mode (XEP-0027)
 OMEMO Mode (XEP-0384)
 
 * *list* - List the device IDs and fingerprints
+* *delete-device-list* - Deletes the OMEMO device list
 
 *-m openpgp*:: 
 openpgp mode (XEP-0373)
@@ -146,7 +147,7 @@ See <https://codeberg.org/Anoxinon_e.V./xmppc/issues>
 
 AUTHOR
 ------
-* DebXWoody (OpenPGP: A602F76893F138B4A8EFDDD5C2DC916F35751C24) 
+* DebXWoody
 
 RESOURCES
 ---------

src/main.c

@@ -560,6 +560,7 @@ static void _show_help() {
   printf("\n");
   printf("  -m --mode omemo             xmppc omemo mode (XEP-0384)\n");
   printf("    list                      List the device IDs and fingerprints\n");
+  printf("    delete-device-list        Delete OMEMO device list\n");
   printf("\n");
   printf("  -m --mode openpgp           xmppc openpgp mode (XEP-0373)\n");
   printf("    signcrypt <jid> <message> Sending pgp signed and encrypted message to jid\n");

src/mode/omemo.c

@@ -52,12 +52,24 @@ static void _omemo_device_list_query(xmppc_t *xmppc);
 static int _omemo_device_list_reply(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza,
                   void *const userdata);
 
+static void _omemo_delete_device_list_query(xmppc_t *xmppc);
+static int _omemo_delete_device_list_reply(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza,
+                  void *const userdata);
+
 static void _omemo_bundles_query(xmppc_t *xmppc, const char* deviceid);
 static int _omemo_bundles_reply(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza,
                   void *const userdata);
 
-void omemo_execute_command(xmppc_t *xmppc, int agrc, char *argv[]) {
-  _omemo_device_list_query(xmppc);
+void omemo_execute_command(xmppc_t *xmppc, int argc, char *argv[]) {
+  if(argc > 0) {
+    if(strcmp("list", argv[0]) == 0) {
+	_omemo_device_list_query(xmppc);
+    } else if(strcmp("delete-device-list", argv[0]) == 0) {
+	_omemo_delete_device_list_query(xmppc);
+    } else {
+      logError(xmppc, "Unbekanner Befehl: %s\n", argv[0]);
+    }
+  }
 }
 
 void _omemo_device_list_query(xmppc_t *xmppc) {
@@ -184,4 +196,49 @@ int _omemo_bundles_reply(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza,
   return 0;
 }
 
+/**
+ <iq type='set'
+    from='hamlet@denmark.lit/elsinore'
+    to='pubsub.shakespeare.lit'
+    id='delete1'>
+  <pubsub xmlns='http://jabber.org/protocol/pubsub#owner'>
+    <delete node='princely_musings'/>
+  </pubsub>
+</iq>
+**/
+static void _omemo_delete_device_list_query(xmppc_t *xmppc) {
+  xmpp_conn_t *conn = xmppc->conn;
+  xmpp_stanza_t *iq, *query, *item;
+  char* id = xmpp_uuid_gen(xmppc->ctx);
+  iq = xmpp_iq_new(xmpp_conn_get_context(conn), "set", id);
+  const char *jid = xmpp_conn_get_jid(conn);
+  xmpp_stanza_set_from(iq, jid);
+  xmpp_stanza_set_to(iq, jid);
+  query = xmpp_stanza_new(xmpp_conn_get_context(conn));
+  xmpp_stanza_set_name(query, "pubsub");
+  xmpp_stanza_set_ns(query, "http://jabber.org/protocol/pubsub#owner");
+  xmpp_stanza_add_child(iq, query);
+  item = xmpp_stanza_new(xmpp_conn_get_context(conn));
+  xmpp_stanza_set_name(item, "delete");
+  xmpp_stanza_set_attribute(item, "node",
+                            "eu.siacs.conversations.axolotl.devicelist");
+  xmpp_stanza_add_child(query, item);
+  xmpp_stanza_release(query);
+  xmpp_stanza_release(item);
+  xmpp_id_handler_add(conn, _omemo_delete_device_list_reply , id, xmppc);
+  xmpp_send(conn, iq);
+}
 
+int _omemo_delete_device_list_reply(xmpp_conn_t *const conn, xmpp_stanza_t *const stanza,
+                  void *const userdata)  {
+  xmppc_t *xmppc = (xmppc_t *)userdata;
+
+  if(strcmp(xmpp_stanza_get_type(stanza), "error") == 0) {
+    printf("Fehler\n");
+    return 0;
+  }
+  printf("Done\n");
+  xmpp_disconnect(xmppc->conn);
+  xmpp_stop(xmppc->ctx);
+  return 0;
+}