1 files changed, 60 insertions, 0 deletions

diff --git a/include/opkele/util.h b/include/opkele/util.h
new file mode 100644
index 0000000..fbbef93
--- a/dev/null
+++ b/include/opkele/util.h
@@ -0,0 +1,60 @@
+#ifndef __OPKELE_UTIL_H
+#define __OPKELE_UTIL_H
+
+#include <time.h>
+#include <string>
+#include <openssl/bn.h>
+#include <openssl/dh.h>
+
+namespace opkele {
+    using std::string;
+
+    namespace util {
+
+        class bignum_t {
+            public:
+                BIGNUM *_bn;
+
+                bignum_t() : _bn(0) { }
+                bignum_t(BIGNUM *bn) : _bn(bn) { }
+                ~bignum_t() throw() { if(_bn) BN_free(_bn); }
+                
+                bignum_t& operator=(BIGNUM *bn) { if(_bn) BN_free(_bn); _bn = bn; return *this; }
+
+                operator const BIGNUM*(void) const { return _bn; }
+                operator BIGNUM*(void) { return _bn; }
+        };
+        class dh_t {
+            public:
+                DH *_dh;
+                
+                dh_t() : _dh(0) { }
+                dh_t(DH *dh) : _dh(dh) { }
+                ~dh_t() throw() { if(_dh) DH_free(_dh); }
+
+                dh_t& operator=(DH *dh) { if(_dh) DH_free(_dh); _dh = dh; return *this; }
+
+                operator const DH*(void) const { return _dh; }
+                operator DH*(void) { return _dh; }
+
+                DH* operator->() { return _dh; }
+                const DH* operator->() const { return _dh; }
+        };
+
+        BIGNUM *base64_to_bignum(const string& b64);
+        BIGNUM *dec_to_bignum(const string& dec);
+        string bignum_to_base64(const BIGNUM *bn);
+
+        string time_to_w3c(time_t t);
+        time_t w3c_to_time(const string& w);
+
+        string canonicalize_url(const string& url);
+        string url_encode(const string& str);
+
+        string long_to_string(long l);
+        long string_to_long(const string& s);
+    }
+
+}
+
+#endif /* __OPKELE_UTIL_H */