1 files changed, 3 insertions, 32 deletions

diff --git a/lib/basic_op.cc b/lib/basic_op.cc
index f7573aa..11ffb48 100644
--- a/lib/basic_op.cc
+++ b/lib/basic_op.cc
@@ -1,26 +1,23 @@
 #include <time.h>
 #include <cassert>
-#include <algorithm>
 #include <openssl/sha.h>
 #include <openssl/hmac.h>
 #include <opkele/data.h>
 #include <opkele/basic_op.h>
 #include <opkele/exception.h>
 #include <opkele/util.h>
 #include <opkele/uris.h>
 
 namespace opkele {
-    using std::pair;
-    using std::mismatch;
 
     void basic_op::reset_vars() {
         assoc.reset();
         return_to.clear(); realm.clear();
         claimed_id.clear(); identity.clear();
         invalidate_handle.clear();
     }
 
     bool basic_op::has_return_to() const {
         return !return_to.empty();
     }
     const string& basic_op::get_return_to() const {
@@ -312,45 +309,19 @@ namespace opkele {
         }catch(failed_lookup&) { }
         if(o2) {
             assert(!nonce.empty());
             invalidate_nonce(nonce);
         }
         return oum;
     }catch(failed_check_authentication& ) {
         oum.set_field("is_valid","false");
         return oum;
     }
 
     void basic_op::verify_return_to() {
-        string nrealm = opkele::util::rfc_3986_normalize_uri(realm);
-        if(nrealm.find('#')!=string::npos)
+        if(realm.find('#')!=string::npos)
             throw opkele::bad_realm(OPKELE_CP_ "authentication realm contains URI fragment");
-        string nrt = opkele::util::rfc_3986_normalize_uri(return_to);
-        string::size_type pr = nrealm.find("://");
-        string::size_type prt = nrt.find("://");
-        assert(!(pr==string::npos || prt==string::npos));
-        pr += sizeof("://")-1;
-        prt += sizeof("://")-1;
-        if(!strncmp(nrealm.c_str()+pr,"*.",2)) {
-            pr = nrealm.find('.',pr);
-            prt = nrt.find('.',prt);
-            assert(pr!=string::npos);
-            if(prt==string::npos)
-                throw bad_return_to(
-                        OPKELE_CP_ "return_to URL doesn't match realm");
-            // TODO: check for overgeneralized realm
-        }
-        string::size_type lr = nrealm.length();
-        string::size_type lrt = nrt.length();
-        if( (lrt-prt) < (lr-pr) )
-            throw bad_return_to(
-                    OPKELE_CP_ "return_to URL doesn't match realm");
-        pair<const char*,const char*> mp = mismatch(
-                nrealm.c_str()+pr,nrealm.c_str()+lr,
-                nrt.c_str()+prt);
-        if( (*(mp.first-1))!='/'
-                && !strchr("/?#",*mp.second) )
-            throw bad_return_to(
-                    OPKELE_CP_ "return_to URL doesn't match realm");
+        if(!util::uri_matches_realm(return_to,realm))
+            throw bad_return_to(OPKELE_CP_ "return_to URL doesn't match realm");
     }
 
 }