2 files changed, 22 insertions, 0 deletions

diff --git a/include/opkele/types.h b/include/opkele/types.h
index 842a722..5d39a5c 100644
--- a/include/opkele/types.h
+++ b/include/opkele/types.h
@@ -143,16 +143,18 @@ namespace opkele {
 
             virtual void reset_fields();
             virtual void set_field(const string& n,const string& v);
             virtual void reset_field(const string& n);
 
             virtual void from_keyvalues(const string& kv);
             virtual void to_keyvalues(ostream& o) const;
 
+            virtual void to_htmlhiddens(ostream& o) const;
+
             void add_to_signed(const string& fields);
             string find_ns(const string& uri,const char *pfx) const;
             string allocate_ns(const string& uri,const char *pfx);
     };
 
     class openid_message_t : public basic_openid_message, public map<string,string> {
         public:
             openid_message_t() { }
diff --git a/lib/openid_message.cc b/lib/openid_message.cc
index 905ea95..fdb4b04 100644
--- a/lib/openid_message.cc
+++ b/lib/openid_message.cc
@@ -154,16 +154,36 @@ namespace opkele {
                 os << f << ':' << om.get_field(f) << '\n';
             }
     };
 
     void basic_openid_message::to_keyvalues(ostream& o) const {
         for_each(fields_begin(),fields_end(),__om_kv_outputter(*this,o));
     }
 
+    struct __om_html_outputter : public unary_function<const string&,void> {
+        public:
+            const basic_openid_message& om;
+            ostream& os;
+
+            __om_html_outputter(const basic_openid_message& om,ostream& os)
+                : om(om), os(os) { }
+
+            result_type operator()(argument_type f) {
+                os <<
+                    "<input type=\"hidden\""
+                    " name=\"" << util::attr_escape(f) << "\""
+                    " value=\"" << util::attr_escape(om.get_field(f)) << "\" />";
+            }
+    };
+
+    void basic_openid_message::to_htmlhiddens(ostream& o) const {
+        for_each(fields_begin(),fields_end(),__om_html_outputter(*this,o));
+    }
+
     void basic_openid_message::add_to_signed(const string& fields) {
         string::size_type fnc = fields.find_first_not_of(",");
         if(fnc==string::npos)
             throw bad_input(OPKELE_CP_ "Trying to add nothing in particular to the list of signed fields");
         string signeds;
         try {
             signeds = get_field("signed");
             string::size_type lnc = signeds.find_last_not_of(",");