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 'include/opkele/extension.h')

diff --git a/include/opkele/extension.h b/include/opkele/extension.h
new file mode 100644
index 0000000..3fb5f6e
--- a/dev/null
+++ b/include/opkele/extension.h
@@ -0,0 +1,59 @@
+#ifndef __OPKELE_EXTENSIONS_H
+#define __OPKELE_EXTENSIONS_H
+
+/**
+ * @file
+ * @brief extensions framework basics
+ */
+
+#include <opkele/types.h>
+
+/**
+ * @brief the main opkele namespace
+ */
+namespace opkele {
+
+    /**
+     * OpenID consumer extension hooks base class
+     */
+    class extension_t {
+	public:
+	    /**
+	     * hook called by consumer before submitting data to OpenID server.
+	     * It is supposed to manipulate parameters list.
+	     * @param p parameters about to be submitted to server
+	     * @param identity identity being verified. It may differ from the
+	     * one available in parameters list in case of delegation
+	     */
+	    virtual void checkid_hook(params_t& p,const string& identity);
+	    /**
+	     * hook called by consumer after identity information received from
+	     * OpenID server is verified.
+	     * @param p parameters received from server
+	     * @param sp signed parameters received from server with 'openid.'
+	     * leader stripped
+	     * @param identity identity confirmed. May differ from the one
+	     * available in parameters list in case of delegation. May also be
+	     * empty which means - extract one from parameters
+	     */
+	    virtual void id_res_hook(const params_t& p,const params_t& sp,const string& identity);
+
+	    /**
+	     * hook called by server before returning information to consumer.
+	     * The hook may manipulate output parameters. It is important to
+	     * note that modified pout["signed"] is used for signing response.
+	     * @param pin request parameters list
+	     * @param put response parameters list
+	     */
+	    virtual void checkid_hook(const params_t& pin,params_t& pout);
+
+	    /**
+	     * Casts the object to pointer to itself. For convenient passing
+	     * of pointer.
+	     */
+	    operator extension_t*(void) { return this; }
+    };
+
+}
+
+#endif /* __OPKELE_EXTENSIONS_H */
--
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