[ekiga] Added the Ekiga::FriendOrFoe base code in the engine

[Julien Puydt <jpuydt src gnome org>]

commit 5bd14c9013e9948a46f363ac7d54998e91c54939
Author: Julien Puydt <jpuydt gnome org>
Date:   Mon Jun 29 20:54:46 2009 +0200

    Added the Ekiga::FriendOrFoe base code in the engine

 configure.ac                               |    1 +
 lib/engine/Makefile.am                     |    2 +
 lib/engine/engine.cpp                      |    3 +
 lib/engine/friend-or-foe/Makefile.am       |   13 ++++
 lib/engine/friend-or-foe/friend-or-foe.cpp |   26 ++++++++
 lib/engine/friend-or-foe/friend-or-foe.h   |   93 ++++++++++++++++++++++++++++
 6 files changed, 138 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index bb0076c..d4f94c3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -877,6 +877,7 @@ lib/engine/components/call-history/Makefile
 lib/engine/components/ldap/Makefile
 lib/engine/components/kab/Makefile
 lib/engine/chat/Makefile
+lib/engine/friend-or-foe/Makefile
 lib/engine/framework/Makefile
 lib/engine/notification/Makefile
 lib/engine/plugin/Makefile
diff --git a/lib/engine/Makefile.am b/lib/engine/Makefile.am
index ad61394..f94afea 100644
--- a/lib/engine/Makefile.am
+++ b/lib/engine/Makefile.am
@@ -17,6 +17,7 @@ INCLUDES = 								\
 	-I$(top_srcdir)/lib/engine/audioinput                           \
 	-I$(top_srcdir)/lib/engine/audiooutput                          \
 	-I$(top_srcdir)/lib/engine/addressbook				\
+	-I$(top_srcdir)/lib/engine/friend-or-foe			\
 	-I$(top_srcdir)/lib/engine/plugin				\
 	-I$(top_srcdir)/lib/engine/presence				\
 	-I$(top_srcdir)/lib/engine/protocol				\
@@ -87,6 +88,7 @@ libekiga_engine_la_LIBADD = \
 	$(top_builddir)/lib/engine/protocol/libgmprotocol.la	 				        \
 	$(top_builddir)/lib/engine/framework/libgmframework.la 						\
 	$(top_builddir)/lib/engine/addressbook/libgmaddressbook.la 				        \
+	$(top_builddir)/lib/engine/friend-or-foe/libgmfriendorfoe.la					\
 	$(top_builddir)/lib/engine/components/call-history/libcall-history.la 				\
 	$(top_builddir)/lib/engine/account/libaccount.la 						\
 	$(top_builddir)/lib/engine/presence/libgmpresence.la 					        \
diff --git a/lib/engine/engine.cpp b/lib/engine/engine.cpp
index 1d8123e..4ee148e 100644
--- a/lib/engine/engine.cpp
+++ b/lib/engine/engine.cpp
@@ -49,6 +49,7 @@
 #include "contact-core.h"
 #include "call-core.h"
 #include "chat-core.h"
+#include "friend-or-foe.h"
 #include "videooutput-core.h"
 #include "videoinput-core.h"
 #include "audioinput-core.h"
@@ -125,6 +126,7 @@ engine_init (int argc,
   gmref_ptr<Ekiga::AudioOutputCore> audiooutput_core (new Ekiga::AudioOutputCore);
   gmref_ptr<Ekiga::AudioInputCore> audioinput_core (new Ekiga::AudioInputCore(*audiooutput_core));
   gmref_ptr<Ekiga::HalCore> hal_core (new Ekiga::HalCore);
+  gmref_ptr<Ekiga::FriendOrFoe> friend_or_foe (new Ekiga::FriendOrFoe);
 
 
   /* The last item in the following list will be destroyed first.   *
@@ -134,6 +136,7 @@ engine_init (int argc,
   service_core->add (account_core);
   service_core->add (contact_core);
   service_core->add (chat_core);
+  service_core->add (friend_or_foe);
   service_core->add (videoinput_core);
   service_core->add (videooutput_core);
   service_core->add (audioinput_core);
diff --git a/lib/engine/friend-or-foe/Makefile.am b/lib/engine/friend-or-foe/Makefile.am
new file mode 100644
index 0000000..538e1c2
--- /dev/null
+++ b/lib/engine/friend-or-foe/Makefile.am
@@ -0,0 +1,13 @@
+noinst_LTLIBRARIES = libgmfriendorfoe.la
+
+friend_or_foe_dir = $(top_srcdir)/lib/engine/friend-or-foe
+
+AM_CXXFLAGS = $(SIGC_CFLAGS) $(GLIB_CFLAGS)
+
+INCLUDES = -I$(top_srcdir)/lib/engine/framework
+
+libgmfriendorfoe_la_SOURCES = \
+	$(friend_or_foe_dir)/friend-or-foe.h \
+	$(friend_or_foe_dir)/friend-or-foe.cpp
+
+libgmaddressbook_la_LDFLAGS = -export-dynamic -no-undefined
\ No newline at end of file
diff --git a/lib/engine/friend-or-foe/friend-or-foe.cpp b/lib/engine/friend-or-foe/friend-or-foe.cpp
new file mode 100644
index 0000000..46d75c2
--- /dev/null
+++ b/lib/engine/friend-or-foe/friend-or-foe.cpp
@@ -0,0 +1,26 @@
+#include "friend-or-foe.h"
+
+Ekiga::FriendOrFoe::Identification
+Ekiga::FriendOrFoe::decide (const std::string domain,
+			    const std::string token) const
+{
+  Identification answer = Unknown;
+  Identification iter_answer;
+
+  for (helpers_type::const_iterator iter = helpers.begin ();
+       iter != helpers.end ();
+       ++iter) {
+
+    iter_answer = (*iter)->decide (domain, token);
+    if (answer < iter_answer)
+      answer = iter_answer;
+  }
+
+  return answer;
+}
+
+void
+Ekiga::FriendOrFoe::add_helper (gmref_ptr<Ekiga::FriendOrFoe::FriendOrFoeHelper> helper)
+{
+  helpers.push_front (helper);
+}
diff --git a/lib/engine/friend-or-foe/friend-or-foe.h b/lib/engine/friend-or-foe/friend-or-foe.h
new file mode 100644
index 0000000..c03b754
--- /dev/null
+++ b/lib/engine/friend-or-foe/friend-or-foe.h
@@ -0,0 +1,93 @@
+
+/*
+ * Ekiga -- A VoIP and Video-Conferencing application
+ * Copyright (C) 2000-2009 Damien Sandras <dsandras seconix com>
+
+ * This program is free software; you can  redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version. This program is distributed in the hope
+ * that it will be useful, but WITHOUT ANY WARRANTY; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Ekiga is licensed under the GPL license and as a special exception, you
+ * have permission to link or otherwise combine this program with the
+ * programs OPAL, OpenH323 and PWLIB, and distribute the combination, without
+ * applying the requirements of the GNU GPL to the OPAL, OpenH323 and PWLIB
+ * programs, as long as you do follow the requirements of the GNU GPL for all
+ * the rest of the software thus combined.
+ */
+
+
+/*
+ *                         friend-or-foe.h  -  description
+ *                         ------------------------------------------
+ *   begin                : written in 2009 by Julien Puydt
+ *   copyright            : (c) 2009 by Julien Puydt
+ *   description          : interface of the main IFF object
+ *
+ */
+
+#ifndef __FRIEND_OR_FOE_H__
+#define __FRIEND_OR_FOE_H__
+
+/* IFF stands for "Identification Friend or Foe" and is a military system
+ * used to determine if an aircraft is a friend or a foe.
+ *
+ * In ekiga, there's no aircraft in sight, and the question isn't that of
+ * shooting or not : the problem is to determine if an incoming call should
+ * be rejected, accepted... or if we ring to let the user decide.
+ *
+ * Since we want several pieces of code to be able to provide information,
+ * we add in a helper class, which the main Ekiga::FriendOrFoe object uses
+ * to determines its answer. And since we want to be extensible, the question
+ * depends on a domain : "call", "message", etc.
+ *
+ * The code which gets a determination by Ekiga::FriendOrFoe can of course do
+ * whatever it wants with the answer!
+ */
+
+#include "services.h"
+
+namespace Ekiga
+{
+  class FriendOrFoe: public Ekiga::Service
+  {
+  public:
+
+    /* beware of the order : we prefer erring on the side of safety */
+    typedef enum { Unknown, Foe, Neutral, Friend } Identification;
+
+    class FriendOrFoeHelper: public GmRefCounted
+    {
+    public:
+      virtual ~FriendOrFoeHelper () = 0;
+
+      virtual Identification decide (const std::string domain,
+				     const std::string token) const = 0;
+    };
+
+    Identification decide (const std::string domain,
+			   const std::string token) const;
+
+    void add_helper (gmref_ptr<FriendOrFoeHelper> helper);
+
+    /* this turns us into a service */
+    const std::string get_name () const
+    { return "friend-or-foe"; }
+
+    const std::string get_description () const
+    { return "\tObject helping determine if an incoming call is acceptable"; }
+
+  private:
+    typedef std::list<gmref_ptr<FriendOrFoeHelper> > helpers_type;
+    helpers_type helpers;
+  };
+};
+
+#endif