1 files changed, 13 insertions, 0 deletions

diff --git a/lib/params.cc b/lib/params.cc
index ea86d3a..7a572c1 100644
--- a/lib/params.cc
+++ b/lib/params.cc
@@ -54,55 +54,68 @@ namespace opkele {
 #endif /* POSTELS_LAW */
         }
     }
 
     void params_t::sign(secret_t secret,string& sig,const string& slist,const char *prefix) const {
         string kv;
         string::size_type p = 0;
         while(true) {
             string::size_type co = slist.find(',',p);
             string f = (co==string::npos)?slist.substr(p):slist.substr(p,co-p);
             kv += f;
             kv += ':';
             if(prefix) f.insert(0,prefix);
             kv += get_param(f);
             kv += '\n';
             if(co==string::npos)
                 break;
             p = co+1;
         }
         unsigned int md_len = 0;
         unsigned char *md = HMAC(
                 EVP_sha1(),
                 &(secret.front()),secret.size(),
                 (const unsigned char *)kv.data(),kv.length(),
                 0,&md_len);
         sig = util::encode_base64(md,md_len);
     }
 
     string params_t::append_query(const string& url,const char *prefix) const {
         string rv = url;
         bool p = true;
         if(rv.find('?')==string::npos) {
             rv += '?';
             p = false;
         }
         for(const_iterator i=begin();i!=end();++i) {
             if(p)
                 rv += '&';
             else
                 p = true;
             rv += prefix;
             rv += i->first;
             rv += '=';
             rv += util::url_encode(i->second);
         }
         return rv;
     }
 
+    string params_t::query_string(const char *prefix) const {
+        string rv;
+        for(const_iterator i=begin();i!=end();++i) {
+            if(!rv.empty())
+                rv += '&';
+            rv += prefix;
+            rv += i->first;
+            rv += '=';
+            rv += util::url_encode(i->second);
+        }
+        return rv;
+    }
+
     ostream& operator << (ostream& o,const params_t& p) {
         for(params_t::const_iterator i=p.begin();i!=p.end();++i)
             o << i->first << ':' << i->second << '\n';
         return o;
     }
 
 }