generate html form hiddens from the openid message

Signed-off-by: Michael Krelin <hacker@klever.net>

1 files changed, 20 insertions, 0 deletions

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
@@ -156,12 +156,32 @@ namespace opkele {
     };
 
     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 {