xep-0106 escape the JIDs listed in a disco#items server query

fix #3325

src/xmpp/biboumi_component.cpp

@@ -7,6 +7,7 @@
 #include <xmpp/adhoc_command.hpp>
 #include <xmpp/biboumi_adhoc_commands.hpp>
 #include <bridge/list_element.hpp>
+#include <utils/encoding.hpp>
 #include <config/config.hpp>
 #include <utils/time.hpp>
 #include <xmpp/jid.hpp>
@@ -1010,7 +1011,9 @@ void BiboumiComponent::send_iq_room_list_result(const std::string& id, const std
     for (auto it = begin; it != end; ++it)
       {
         XmlSubNode item(query, "item");
-        item["jid"] = it->channel + "@" + this->served_hostname;
+        std::string channel_name = it->channel;
+        xep0106::encode(channel_name);
+        item["jid"] = channel_name + "@" + this->served_hostname;
       }
 
     if ((rs_info.max >= 0 || !rs_info.after.empty() || !rs_info.before.empty()))

tests/end_to_end/__main__.py

@@ -2254,6 +2254,21 @@ if __name__ == '__main__':
                          "/iq/disco_items:query/disco_items:item[@jid='#bar%{irc_server_one}']"
                      ))
                  ]),
+        Scenario("channel_list_escaping",
+                 [
+                     handshake_sequence(),
+
+                     partial(send_stanza,
+                             "<presence from='{jid_one}/{resource_one}' to='#true\\2ffalse%{irc_server_one}/{nick_one}' />"),
+                     connection_sequence("irc.localhost", '{jid_one}/{resource_one}'),
+                     partial(expect_stanza,
+                             "/message/body[text()='Mode #true/false [+nt] by {irc_host_one}']"),
+                     partial(expect_stanza,
+                             ("/presence[@to='{jid_one}/{resource_one}'][@from='#true\\2ffalse%{irc_server_one}/{nick_one}']/muc_user:x/muc_user:item[@affiliation='admin'][@role='moderator']",
+                             "/presence/muc_user:x/muc_user:status[@code='110']")
+                             ),
+                     partial(expect_stanza, "/message[@from='#true\\2ffalse%{irc_server_one}'][@type='groupchat']/subject[not(text())]"),
+                 ]),
         Scenario("channel_list_with_rsm",
                  [
                      handshake_sequence(),