3 files changed, 24 insertions, 1 deletions

diff --git a/include/opkele/association.h b/include/opkele/association.h
index a8f3915..72eff5b 100644
--- a/include/opkele/association.h
+++ b/include/opkele/association.h
@@ -63,2 +63,4 @@ namespace opkele {
             virtual bool stateless() const { return _stateless; }
+
+            virtual bool is_expired() const { return _expires<time(0); }
     };
diff --git a/include/opkele/consumer.h b/include/opkele/consumer.h
index 042e2d1..b9d1e54 100644
--- a/include/opkele/consumer.h
+++ b/include/opkele/consumer.h
@@ -15,2 +15,7 @@ namespace opkele {
      * implementation of basic consumer functionality
+     *
+     * @note
+     * The consumer uses libcurl internally, which means that if you're using
+     * libopkele in multithreaded environment you should call curl_global_init
+     * yourself before spawning any threads.
      */
@@ -33,2 +38,8 @@ namespace opkele {
              * store.
+             *
+             * @note
+             * The user is responsible for handling associations expiry and
+             * this function should never return an expired or invalidated
+             * association.
+             *
              * @param server the OpenID server
@@ -36,3 +47,3 @@ namespace opkele {
              * @return the autho_ptr<> for the newly allocated association_t object
-             * @throw failed_lookup in case of error
+             * @throw failed_lookup if no unexpired association found
              */
@@ -50,2 +61,8 @@ namespace opkele {
              * association will be established for each request.
+             *
+             * @note
+             * The user is responsible for handling associations and this
+             * function should never return an expired or invalidated
+             * association.
+             *
              * @param server the OpenID server
diff --git a/lib/consumer.cc b/lib/consumer.cc
index dd8e150..af309c1 100644
--- a/lib/consumer.cc
+++ b/lib/consumer.cc
@@ -146,2 +146,4 @@ namespace opkele {
             string ah = find_assoc(server)->handle();
+            if(ah->is_expired()) /* TODO: or should I throw some other exception to force programmer fix his implementation? */
+                throw failed_lookup(OPKELE_CP_ "find_assoc() has returned expired handle");
             p["assoc_handle"] = ah;
@@ -163,2 +165,4 @@ namespace opkele {
             assoc_t assoc = retrieve_assoc(server,pin.get_param("openid.assoc_handle"));
+            if(assoc->is_expired()) /* TODO: or should I throw some other exception to force programmer fix his implementation? */
+                throw failed_lookup(OPKELE_CP_ "retrieve_assoc() has returned expired handle");
             const string& sigenc = pin.get_param("openid.sig");