From 9032e2ee65afc0fd856986c57630b8410b7433dd Mon Sep 17 00:00:00 2001
From: Stefan Sayer <stefan.sayer@googlemail.com>
Date: Sun, 29 Jul 2007 15:14:14 +0000
Subject: [PATCH] authenticated announcement (SEMS call originator)

git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@410 8eb893ce-cfd4-0310-b710-fb5ebe64c474
---
 apps/announcement/Announcement.cpp | 51 +++++++++++++++++++++++++++---
 apps/announcement/Announcement.h   | 19 +++++++++--
 2 files changed, 62 insertions(+), 8 deletions(-)

diff --git a/apps/announcement/Announcement.cpp b/apps/announcement/Announcement.cpp
index 3f72e8ef..b87463fa 100644
--- a/apps/announcement/Announcement.cpp
+++ b/apps/announcement/Announcement.cpp
@@ -28,6 +28,7 @@
 #include "Announcement.h"
 #include "AmConfig.h"
 #include "AmUtils.h"
+#include "AmPlugIn.h"
 
 #include "sems.h"
 #include "log.h"
@@ -70,8 +71,7 @@ int AnnouncementFactory::onLoad()
   return 0;
 }
 
-AmSession* AnnouncementFactory::onInvite(const AmSipRequest& req)
-{
+string AnnouncementFactory::getAnnounceFile(const AmSipRequest& req) {
   string announce_path = AnnouncePath;
   string announce_file = announce_path + req.domain 
     + "/" + req.user + ".wav";
@@ -88,11 +88,48 @@ AmSession* AnnouncementFactory::onInvite(const AmSipRequest& req)
   announce_file = AnnouncePath + AnnounceFile;
     
  end:
-  return new AnnouncementDialog(announce_file);
+  return announce_file;
 }
 
-AnnouncementDialog::AnnouncementDialog(const string& filename)
-  : filename(filename)
+AmSession* AnnouncementFactory::onInvite(const AmSipRequest& req)
+{
+  return new AnnouncementDialog(getAnnounceFile(req), NULL);
+}
+
+AmSession* AnnouncementFactory::onInvite(const AmSipRequest& req,
+					 AmArg& session_params)
+{
+  UACAuthCred* cred = NULL;
+  if (session_params.getType() == AmArg::AObject) {
+    ArgObject* cred_obj = session_params.asObject();
+    if (cred_obj)
+      cred = dynamic_cast<UACAuthCred*>(cred_obj);
+  }
+
+  AmSession* s = new AnnouncementDialog(getAnnounceFile(req), cred); 
+  
+  if (NULL == cred) {
+    WARN("discarding unknown session parameters.\n");
+  } else {
+    AmSessionEventHandlerFactory* uac_auth_f = 
+      AmPlugIn::instance()->getFactory4Seh("uac_auth");
+    if (uac_auth_f != NULL) {
+      DBG("UAC Auth enabled for new announcement session.\n");
+      AmSessionEventHandler* h = uac_auth_f->getHandler(s);
+      if (h != NULL )
+	s->addHandler(h);
+    } else {
+      ERROR("uac_auth interface not accessible. "
+	    "Load uac_auth for authenticated dialout.\n");
+    }		
+  }
+
+  return s;
+}
+
+AnnouncementDialog::AnnouncementDialog(const string& filename, 
+				       UACAuthCred* credentials)
+  : filename(filename), cred(credentials)
 {
 }
 
@@ -142,3 +179,7 @@ void AnnouncementDialog::process(AmEvent* event)
 
   AmSession::process(event);
 }
+
+inline UACAuthCred* AnnouncementDialog::getCredentials() {
+  return cred.get();
+}
diff --git a/apps/announcement/Announcement.h b/apps/announcement/Announcement.h
index df255116..618f97c2 100644
--- a/apps/announcement/Announcement.h
+++ b/apps/announcement/Announcement.h
@@ -31,11 +31,16 @@
 #include "AmSession.h"
 #include "AmConfigReader.h"
 
+#include "ampi/UACAuthAPI.h"
+
 #include <string>
 using std::string;
 
+#include <memory>
+
 class AnnouncementFactory: public AmSessionFactory
 {
+  inline string getAnnounceFile(const AmSipRequest& req);
 public:
   static string AnnouncePath;
   static string AnnounceFile;
@@ -44,15 +49,21 @@ public:
 
   int onLoad();
   AmSession* onInvite(const AmSipRequest& req);
+  AmSession* onInvite(const AmSipRequest& req,
+		      AmArg& session_params);
+
 };
 
-class AnnouncementDialog : public AmSession
+class AnnouncementDialog : public AmSession,
+			   public CredentialHolder
 {
   AmAudioFile wav_file;
   string filename;
-    
+
+  std::auto_ptr<UACAuthCred> cred;
 public:
-  AnnouncementDialog(const string& filename);
+  AnnouncementDialog(const string& filename, 
+		     UACAuthCred* credentials = NULL);
   ~AnnouncementDialog();
 
   void onSessionStart(const AmSipRequest& req);
@@ -62,6 +73,8 @@ public:
   void onDtmf(int event, int duration_msec) {}
 
   void process(AmEvent* event);
+
+  UACAuthCred* getCredentials();
 };
 
 #endif