From 06eaf00c48fc563245b85c2be4b8b5a03ef2cfe9 Mon Sep 17 00:00:00 2001
From: Michael Krelin <hacker@klever.net>
Date: Thu, 11 Jan 2007 00:57:06 +0000
Subject: introduced extension hooks framework

---
(limited to 'lib')

diff --git a/lib/Makefile.am b/lib/Makefile.am
index 6f3f9f3..69c749e 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -21,4 +21,5 @@ libopkele_la_SOURCES = \
 		       secret.cc \
 		       data.cc \
 		       consumer.cc \
-		       exception.cc
+		       exception.cc \
+		       extension.cc
diff --git a/lib/consumer.cc b/lib/consumer.cc
index bb6358c..10c2fa0 100644
--- a/lib/consumer.cc
+++ b/lib/consumer.cc
@@ -123,13 +123,13 @@ namespace opkele {
 	return store_assoc(server,p.get_param("assoc_handle"),secret,expires_in);
     }
 
-    string consumer_t::checkid_immediate(const string& identity,const string& return_to,const string& trust_root) {
-	return checkid_(mode_checkid_immediate,identity,return_to,trust_root);
+    string consumer_t::checkid_immediate(const string& identity,const string& return_to,const string& trust_root,extension_t *ext) {
+	return checkid_(mode_checkid_immediate,identity,return_to,trust_root,ext);
     }
-    string consumer_t::checkid_setup(const string& identity,const string& return_to,const string& trust_root) {
-	return checkid_(mode_checkid_setup,identity,return_to,trust_root);
+    string consumer_t::checkid_setup(const string& identity,const string& return_to,const string& trust_root,extension_t *ext) {
+	return checkid_(mode_checkid_setup,identity,return_to,trust_root,ext);
     }
-    string consumer_t::checkid_(mode_t mode,const string& identity,const string& return_to,const string& trust_root) {
+    string consumer_t::checkid_(mode_t mode,const string& identity,const string& return_to,const string& trust_root,extension_t *ext) {
 	params_t p;
 	if(mode==mode_checkid_immediate)
 	    p["mode"]="checkid_immediate";
@@ -153,14 +153,16 @@ namespace opkele {
 		p["assoc_handle"] = ah;
 	    }
 	}catch(exception& e) { }
+	if(ext) ext->checkid_hook(p,identity);
 	return p.append_query(server);
     }
 
-    void consumer_t::id_res(const params_t& pin,const string& identity) {
+    void consumer_t::id_res(const params_t& pin,const string& identity,extension_t *ext) {
 	if(pin.has_param("openid.user_setup_url"))
 	    throw id_res_setup(OPKELE_CP_ "assertion failed, setup url provided",pin.get_param("openid.user_setup_url"));
 	string server,delegate;
 	retrieve_links(identity.empty()?pin.get_param("openid.identity"):canonicalize(identity),server,delegate);
+	params_t ps;
 	try {
 	    assoc_t assoc = retrieve_assoc(server,pin.get_param("openid.assoc_handle"));
 	    const string& sigenc = pin.get_param("openid.sig");
@@ -180,6 +182,7 @@ namespace opkele {
 		f.insert(0,"openid.");
 		kv += pin.get_param(f);
 		kv += '\n';
+		if(ext) ps[f.substr(sizeof("openid."))] = pin.get_param(f);
 		if(co==string::npos)
 		    break;
 		p = co+1;
@@ -219,6 +222,7 @@ namespace opkele {
 		throw id_res_failed(OPKELE_CP_ "failed to check_authentication()");
 	    }
 	}
+	if(ext) ext->id_res_hook(pin,ps,identity);
     }
 
     void consumer_t::check_authentication(const string& server,const params_t& p) {
diff --git a/lib/extension.cc b/lib/extension.cc
new file mode 100644
index 0000000..bd2195d
--- a/dev/null
+++ b/lib/extension.cc
@@ -0,0 +1,15 @@
+#include <opkele/exception.h>
+#include <opkele/extension.h>
+
+namespace opkele {
+
+    void extension_t::checkid_hook(params_t& p,const string& identity) {
+	throw not_implemented(OPKELE_CP_ "Consumer checkid_hook not implemented");
+    }
+    void id_res_hook(const params_t& p,const params_t& sp,const string& identity) {
+	throw not_implemented(OPKELE_CP_ "Consumer id_res_hook not implemented");
+    }
+    void checkid_hook(const params_t& pin,params_t& pout) {
+	throw not_implemented(OPKELE_CP_ "Server checkid_hook not implemented");
+    }
+}
diff --git a/lib/server.cc b/lib/server.cc
index 5eee1f3..8c29abb 100644
--- a/lib/server.cc
+++ b/lib/server.cc
@@ -67,15 +67,15 @@ namespace opkele {
 	}
     }
 
-    void server_t::checkid_immediate(const params_t& pin,string& return_to,params_t& pout) {
-	checkid_(mode_checkid_immediate,pin,return_to,pout);
+    void server_t::checkid_immediate(const params_t& pin,string& return_to,params_t& pout,extension_t *ext) {
+	checkid_(mode_checkid_immediate,pin,return_to,pout,ext);
     }
 
-    void server_t::checkid_setup(const params_t& pin,string& return_to,params_t& pout) {
-	checkid_(mode_checkid_setup,pin,return_to,pout);
+    void server_t::checkid_setup(const params_t& pin,string& return_to,params_t& pout,extension_t *ext) {
+	checkid_(mode_checkid_setup,pin,return_to,pout,ext);
     }
 
-    void server_t::checkid_(mode_t mode,const params_t& pin,string& return_to,params_t& pout) {
+    void server_t::checkid_(mode_t mode,const params_t& pin,string& return_to,params_t& pout,extension_t *ext) {
 	if(mode!=mode_checkid_immediate && mode!=mode_checkid_setup)
 	    throw bad_input(OPKELE_CP_ "invalid checkid_* mode");
 	pout.clear();
@@ -106,7 +106,9 @@ namespace opkele {
 	pout["issued"] = util::time_to_w3c(now);
 	pout["valid_to"] = util::time_to_w3c(now+120);
 	pout["exipres_in"] = "120";
-	pout.sign(assoc->secret(),pout["sig"],pout["signed"]="mode,identity,return_to");
+	pout["signed"]="mode,identity,return_to";
+	if(ext) ext->checkid_hook(pin,pout);
+	pout.sign(assoc->secret(),pout["sig"],pout["signed"]);
     }
 
     void server_t::check_authentication(const params_t& pin,params_t& pout) {
--
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