From c65ae4754921fe1f9888afc30d26ed11d5275258 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?louiz=E2=80=99?= <louiz@louiz.org>
Date: Mon, 12 Dec 2016 00:36:59 +0100
Subject: Auto accept presence subscription

---
 louloulibs/xmpp/xmpp_component.hpp |  4 ----
 src/xmpp/biboumi_component.cpp     | 44 ++++++++++++++++++++++++++------------
 src/xmpp/biboumi_component.hpp     |  7 ++----
 tests/end_to_end/__main__.py       | 13 +++++++++++
 4 files changed, 45 insertions(+), 23 deletions(-)

diff --git a/louloulibs/xmpp/xmpp_component.hpp b/louloulibs/xmpp/xmpp_component.hpp
index e3f8ce2..a9bac0f 100644
--- a/louloulibs/xmpp/xmpp_component.hpp
+++ b/louloulibs/xmpp/xmpp_component.hpp
@@ -178,10 +178,6 @@ public:
                                     const std::string& affiliation,
                                     const std::string& role,
                                     const std::string& jid_to);
-  /**
-   * Send a result IQ with the gateway disco informations.
-   */
-  void send_self_disco_info(const std::string& id, const std::string& jid_to);
   /**
    * Send a result IQ with the given version, or the gateway version if the
    * passed string is empty.
diff --git a/src/xmpp/biboumi_component.cpp b/src/xmpp/biboumi_component.cpp
index d646656..f8d2f1d 100644
--- a/src/xmpp/biboumi_component.cpp
+++ b/src/xmpp/biboumi_component.cpp
@@ -161,6 +161,16 @@ void BiboumiComponent::handle_presence(const Stanza& stanza)
           bridge->leave_irc_channel(std::move(iid), status ? status->get_inner() : "", from.resource);
         }
     }
+  else if (iid.type == Iid::Type::Server || iid.type == Iid::Type::None)
+    {
+      if (type == "subscribe")
+        { // Auto-accept any subscription request for an IRC server
+          this->add_to_roster(to_str, from.bare());
+          this->accept_subscription(to_str, from.bare());
+          this->ask_subscription(to_str, from.bare());
+        }
+
+    }
   else
     {
       // A user wants to join an invalid IRC channel, return a presence error to him/her
@@ -751,20 +761,6 @@ void BiboumiComponent::send_irc_channel_muc_traffic_info(const std::string id, c
 
 }
 
-void BiboumiComponent::send_iq_version_request(const std::string& from,
-                                            const std::string& jid_to)
-{
-  Stanza iq("iq");
-  iq["type"] = "get";
-  iq["id"] = "version_"s + this->next_id();
-  iq["from"] = from + "@" + this->served_hostname;
-  iq["to"] = jid_to;
-  XmlNode query("query");
-  query["xmlns"] = VERSION_NS;
-  iq.add_child(std::move(query));
-  this->send_stanza(iq);
-}
-
 void BiboumiComponent::send_ping_request(const std::string& from,
                                          const std::string& jid_to,
                                          const std::string& id)
@@ -863,3 +859,23 @@ void BiboumiComponent::send_invitation(const std::string& room_target,
   message.add_child(std::move(x));
   this->send_stanza(message);
 }
+
+void BiboumiComponent::accept_subscription(const std::string& from, const std::string& to)
+{
+  Stanza presence("presence");
+  presence["from"] = from;
+  presence["to"] = to;
+  presence["id"] = this->next_id();
+  presence["type"] = "subscribed";
+  this->send_stanza(presence);
+}
+
+void BiboumiComponent::ask_subscription(const std::string& from, const std::string& to)
+{
+ Stanza presence("presence");
+  presence["from"] = from;
+  presence["to"] = to;
+  presence["id"] = this->next_id();
+  presence["type"] = "subscribe";
+  this->send_stanza(presence);
+}
diff --git a/src/xmpp/biboumi_component.hpp b/src/xmpp/biboumi_component.hpp
index 999001f..7cafdec 100644
--- a/src/xmpp/biboumi_component.hpp
+++ b/src/xmpp/biboumi_component.hpp
@@ -70,11 +70,6 @@ public:
    * http://xmpp.org/extensions/xep-0045.html#impl-service-traffic
    */
    void send_irc_channel_muc_traffic_info(const std::string id, const std::string& jid_from, const std::string& jid_to);
-  /**
-   * Send an iq version request
-   */
-  void send_iq_version_request(const std::string& from,
-                               const std::string& jid_to);
   /**
    * Send a ping request
    */
@@ -88,6 +83,8 @@ public:
                                 const ChannelList& channel_list, std::vector<ListElement>::const_iterator begin,
                                 std::vector<ListElement>::const_iterator end, const ResultSetInfo& rs_info);
   void send_invitation(const std::string& room_target, const std::string& jid_to, const std::string& author_nick);
+  void accept_subscription(const std::string& from, const std::string& to);
+  void ask_subscription(const std::string& from, const std::string& to);
   /**
    * Handle the various stanza types
    */
diff --git a/tests/end_to_end/__main__.py b/tests/end_to_end/__main__.py
index b265200..dcdd560 100644
--- a/tests/end_to_end/__main__.py
+++ b/tests/end_to_end/__main__.py
@@ -1840,6 +1840,19 @@ if __name__ == '__main__':
                                              "/presence/muc:x",
                                              "/presence/error/stanza:text")),
                  ], conf='fixed_server'),
+        Scenario("irc_server_presence_subscription",
+                  [
+                      handshake_sequence(),
+                      partial(send_stanza, "<presence type='subscribe' from='{jid_one}/{resource_one}' to='{irc_server_one}' id='sub1' />"),
+                      partial(expect_stanza, "/presence[@to='{jid_one}'][@from='{irc_server_one}'][@type='subscribed']")
+                  ]),
+        Scenario("fixed_irc_server_presence_subscription",
+                  [
+                      handshake_sequence(),
+                      partial(send_stanza, "<presence type='subscribe' from='{jid_one}/{resource_one}' to='{biboumi_host}' id='sub1' />"),
+                      partial(expect_stanza, "/presence[@to='{jid_one}'][@from='{biboumi_host}'][@type='subscribed']")
+                  ], conf='fixed_server')
+
     )
 
 
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