eliminated mimetic dependency and made use of openssl base64 encoder instead

9 files changed, 71 insertions, 67 deletions

diff --git a/configure.ac b/configure.ac
index af7a301..2ce5f71 100644
--- a/configure.ac
+++ b/configure.ac
@@ -41,17 +41,6 @@ if test "${WANT_KONFORKA}" = "yes" ; then
  )
 fi
 
-AC_LANG_PUSH([C++])
- AC_CHECK_LIB([mimetic],[main],[
-   MIMETIC_LIBS=-lmimetic
-   AC_SUBST([MIMETIC_CFLAGS])
-   AC_SUBST([MIMETIC_LIBS])
-  ],[
-   AC_MSG_ERROR([no mimetic library found. get one from http://codesink.org/mimetic_mime_library.html])
-  ]
- )
-AC_LANG_POP([C++])
-
 WANT_DOXYGEN="yes"
 AC_ARG_ENABLE([doxygen],
  AC_HELP_STRING([--disable-doxygen],[do not generate documentation]),
diff --git a/include/opkele/util.h b/include/opkele/util.h
index 5372498..80d8b03 100644
--- a/include/opkele/util.h
+++ b/include/opkele/util.h
@@ -3,11 +3,13 @@
 
 #include <time.h>
 #include <string>
+#include <vector>
 #include <openssl/bn.h>
 #include <openssl/dh.h>
 
 namespace opkele {
     using std::string;
+    using std::vector;
 
     namespace util {
 
@@ -52,6 +54,9 @@ namespace opkele {
 
         string long_to_string(long l);
         long string_to_long(const string& s);
+
+        string encode_base64(const void *data,size_t length);
+        void decode_base64(const string& data,vector<unsigned char>& rv);
     }
 
 }
diff --git a/lib/Makefile.am b/lib/Makefile.am
index bdadd44..ec63c25 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -4,13 +4,11 @@ INCLUDES = \
            -I${top_srcdir}/include/ \
            ${KONFORKA_CFLAGS} \
            ${OPENSSL_CFLAGS} \
-           ${MIMETIC_CFLAGS} \
            ${LIBCURL_CPPFLAGS} \
            ${PCREPP_CFLAGS}
 LDADD = \
         ${LIBCURL} \
         ${PCREPP_LIBS} \
-        ${MIMETIC_LIBS} \
         ${OPENSSL_LIBS} \
         ${KONFORKA_LIBS}
 
diff --git a/lib/consumer.cc b/lib/consumer.cc
index b215aa8..331b1e9 100644
--- a/lib/consumer.cc
+++ b/lib/consumer.cc
@@ -1,25 +1,16 @@
 #include <algorithm>
+#include <cassert>
 #include <opkele/util.h>
 #include <opkele/exception.h>
 #include <opkele/data.h>
 #include <opkele/consumer.h>
 #include <openssl/sha.h>
 #include <openssl/hmac.h>
-#include <mimetic/mimetic.h>
 #include <curl/curl.h>
 #include <pcre++.h>
 
 #include <iostream>
 
-/* silly mimetic */
-#undef PACKAGE
-#undef PACKAGE_BUGREPORT
-#undef PACKAGE_NAME
-#undef PACKAGE_STRING
-#undef PACKAGE_TARNAME
-#undef PACKAGE_VERSION
-#undef VERSION
-
 #include "config.h"
 
 namespace opkele {
@@ -166,11 +157,8 @@ namespace opkele {
         try {
             assoc_t assoc = retrieve_assoc(server,pin.get_param("openid.assoc_handle"));
             const string& sigenc = pin.get_param("openid.sig");
-            mimetic::Base64::Decoder b;
             vector<unsigned char> sig;
-            mimetic::decode(
-                    sigenc.begin(),sigenc.end(), b,
-                    back_insert_iterator<vector<unsigned char> >(sig) );
+            util::decode_base64(sigenc,sig);
             const string& slist = pin.get_param("openid.signed");
             string kv;
             string::size_type p = 0;
diff --git a/lib/params.cc b/lib/params.cc
index 14f1a53..03867d5 100644
--- a/lib/params.cc
+++ b/lib/params.cc
@@ -3,7 +3,6 @@
 #include <opkele/util.h>
 #include <openssl/sha.h>
 #include <openssl/hmac.h>
-#include <mimetic/mimetic.h>
 
 namespace opkele {
     using namespace std;
@@ -60,11 +59,7 @@ namespace opkele {
                 &(secret.front()),secret.size(),
                 (const unsigned char *)kv.data(),kv.length(),
                 0,&md_len);
-        mimetic::Base64::Encoder b(0);
-        sig.erase();
-        mimetic::encode(
-                md,md+md_len, b,
-                back_insert_iterator<string>(sig) );
+        sig = util::encode_base64(md,md_len);
     }
 
     string params_t::append_query(const string& url,const char *prefix) const {
diff --git a/lib/secret.cc b/lib/secret.cc
index ae8a3c5..632a2ca 100644
--- a/lib/secret.cc
+++ b/lib/secret.cc
@@ -2,7 +2,7 @@
 #include <functional>
 #include <opkele/types.h>
 #include <opkele/exception.h>
-#include <mimetic/mimetic.h>
+#include <opkele/util.h>
 
 namespace opkele {
     using namespace std;
@@ -23,18 +23,12 @@ namespace opkele {
                 key_sha1,
                 back_insert_iterator<vector<unsigned char> >(tmp),
                 bitwise_xor<unsigned char,unsigned char,unsigned char>() );
-        mimetic::Base64::Encoder b(0);
-        mimetic::encode(
-                tmp.begin(),tmp.end(), b,
-                back_insert_iterator<string>(rv) );
+        rv = util::encode_base64(&(tmp.front()),tmp.size());
     }
 
     void secret_t::enxor_from_base64(const unsigned char *key_sha1,const string& b64) {
-        mimetic::Base64::Decoder b;
         clear();
-        mimetic::decode(
-                b64.begin(),b64.end(), b,
-                back_insert_iterator<secret_t>(*this) );
+        util::decode_base64(b64,*this);
         transform(
                 begin(), end(),
                 key_sha1,
@@ -45,17 +39,11 @@ namespace opkele {
     void secret_t::to_base64(string& rv) const {
         if(size()!=20)
             throw bad_input(OPKELE_CP_ "wrong secret size");
-        mimetic::Base64::Encoder b(0);
-        mimetic::encode(
-                begin(),end(), b,
-                back_insert_iterator<string>(rv) );
+        rv = util::encode_base64(&(front()),size());
     }
 
     void secret_t::from_base64(const string& b64) {
-        mimetic::Base64::Decoder b;
-        mimetic::decode(
-                b64.begin(),b64.end(), b,
-                back_insert_iterator<secret_t>(*this) );
+        util::decode_base64(b64,*this);
     }
 
 }
diff --git a/lib/server.cc b/lib/server.cc
index 8c29abb..e81d4b6 100644
--- a/lib/server.cc
+++ b/lib/server.cc
@@ -1,7 +1,6 @@
 #include <vector>
 #include <openssl/sha.h>
 #include <openssl/hmac.h>
-#include <mimetic/mimetic.h>
 #include <opkele/util.h>
 #include <opkele/exception.h>
 #include <opkele/server.h>
@@ -113,11 +112,8 @@ namespace opkele {
 
     void server_t::check_authentication(const params_t& pin,params_t& pout) {
         vector<unsigned char>  sig;
-        mimetic::Base64::Decoder b;
         const string& sigenc = pin.get_param("openid.sig");
-        mimetic::decode(
-                sigenc.begin(),sigenc.end(), b,
-                back_insert_iterator<vector<unsigned char> >(sig));
+        util::decode_base64(sigenc,sig);
         assoc_t assoc;
         try {
             assoc = retrieve_assoc(pin.get_param("openid.assoc_handle"));
diff --git a/lib/util.cc b/lib/util.cc
index d78b5e0..d9abca7 100644
--- a/lib/util.cc
+++ b/lib/util.cc
@@ -2,7 +2,8 @@
 #include <cassert>
 #include <vector>
 #include <string>
-#include <mimetic/mimetic.h>
+#include <openssl/bio.h>
+#include <openssl/evp.h>
 #include <curl/curl.h>
 #include "opkele/util.h"
 #include "opkele/exception.h"
@@ -13,15 +14,64 @@ namespace opkele {
     namespace util {
 
         /*
+         * base64
+         */
+        string encode_base64(const void *data,size_t length) {
+            BIO *b64 = 0, *bmem = 0;
+            try {
+                b64 = BIO_new(BIO_f_base64());
+                if(!b64)
+                    throw exception_openssl(OPKELE_CP_ "failed to BIO_new() base64 encoder");
+                BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL);
+                bmem = BIO_new(BIO_s_mem());
+                BIO_set_flags(b64,BIO_CLOSE);
+                if(!bmem)
+                    throw exception_openssl(OPKELE_CP_ "failed to BIO_new() memory buffer");
+                BIO_push(b64,bmem);
+                if(BIO_write(b64,data,length)!=length)
+                    throw exception_openssl(OPKELE_CP_ "failed to BIO_write()");
+                BIO_flush(b64);
+                char *rvd;
+                long rvl = BIO_get_mem_data(bmem,&rvd);
+                string rv(rvd,rvl);
+                BIO_free_all(b64);
+                return rv;
+            }catch(...) {
+                if(b64) BIO_free_all(b64);
+                throw;
+            }
+        }
+
+        void decode_base64(const string& data,vector<unsigned char>& rv) {
+            BIO *b64 = 0, *bmem = 0;
+            rv.clear();
+            try {
+                bmem = BIO_new_mem_buf((void*)data.data(),data.size());
+                if(!bmem)
+                    throw exception_openssl(OPKELE_CP_ "failed to BIO_new_mem_buf()");
+                b64 = BIO_new(BIO_f_base64());
+                if(!b64)
+                    throw exception_openssl(OPKELE_CP_ "failed to BIO_new() base64 decoder");
+                BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL);
+                BIO_push(b64,bmem);
+                unsigned char tmp[512];
+                size_t rb = 0;
+                while((rb=BIO_read(b64,tmp,sizeof(tmp)))>0)
+                    rv.insert(rv.end(),tmp,&tmp[rb]);
+                BIO_free_all(b64);
+            }catch(...) {
+                if(b64) BIO_free_all(b64);
+                throw;
+            }
+        }
+
+        /*
          * big numerics
          */
 
         BIGNUM *base64_to_bignum(const string& b64) {
             vector<unsigned char> bin;
-            mimetic::Base64::Decoder b;
-            mimetic::decode(
-                    b64.begin(),b64.end(), b,
-                    back_insert_iterator<vector<unsigned char> >(bin) );
+            decode_base64(b64,bin);
             BIGNUM *rv = BN_bin2bn(&(bin.front()),bin.size(),0);
             if(!rv)
                 throw failed_conversion(OPKELE_CP_ "failed to BN_bin2bn()");
@@ -38,12 +88,7 @@ namespace opkele {
         string bignum_to_base64(const BIGNUM *bn) {
             vector<unsigned char> bin(BN_num_bytes(bn));
             int l = BN_bn2bin(bn,&(bin.front()));
-            string rv;
-            mimetic::Base64::Encoder b(0);
-            mimetic::encode(
-                    bin.begin(),bin.begin()+l, b,
-                    back_insert_iterator<string>(rv) );
-            return rv;
+            return encode_base64(&(bin.front()),l);
         }
 
         /*
diff --git a/libopkele.pc.in b/libopkele.pc.in
index 60bca34..286720e 100644
--- a/libopkele.pc.in
+++ b/libopkele.pc.in
@@ -8,4 +8,4 @@ Description: C++ implementation of OpenID protocol
 Version: @VERSION@
 Requires: openssl @KONFORKA_KONFORKA@
 Cflags: -I${includedir} @LIBCURL_CPPFLAGS@ @PCREPP_CFLAGS@
-Libs: -L${libdir} -lopkele @LIBCURL@ @PCREPP_LIBS@ @MIMETIC_LIBS@
+Libs: -L${libdir} -lopkele @LIBCURL@ @PCREPP_LIBS@