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
@@ -38,23 +38,12 @@ if test "${WANT_KONFORKA}" = "yes" ; then
   ],[
    AC_MSG_RESULT([no])
   ]
  )
 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]),
  [
   test "${enableval}" = "no" && WANT_DOXYGEN="no"
  ]
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
@@ -1,16 +1,18 @@
 #ifndef __OPKELE_UTIL_H
 #define __OPKELE_UTIL_H
 
 #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 {
 
 	class bignum_t {
 	    public:
 		BIGNUM *_bn;
@@ -49,11 +51,14 @@ namespace opkele {
 	time_t w3c_to_time(const string& w);
 
 	string url_encode(const string& str);
 
 	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);
     }
 
 }
 
 #endif /* __OPKELE_UTIL_H */
diff --git a/lib/Makefile.am b/lib/Makefile.am
index bdadd44..ec63c25 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -1,19 +1,17 @@
 lib_LTLIBRARIES = libopkele.la
 
 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}
 
 libopkele_la_SOURCES = \
 		       params.cc \
 		       util.cc \
diff --git a/lib/consumer.cc b/lib/consumer.cc
index b215aa8..331b1e9 100644
--- a/lib/consumer.cc
+++ b/lib/consumer.cc
@@ -1,28 +1,19 @@
 #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 {
     using namespace std;
 
     class curl_t {
@@ -163,17 +154,14 @@ namespace opkele {
 	string server,delegate;
 	retrieve_links(identity.empty()?pin.get_param("openid.identity"):canonicalize(identity),server,delegate);
 	params_t ps;
 	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;
 	    while(true) {
 		string::size_type co = slist.find(',',p);
 		string f = (co==string::npos)?slist.substr(p):slist.substr(p,co-p);
diff --git a/lib/params.cc b/lib/params.cc
index 14f1a53..03867d5 100644
--- a/lib/params.cc
+++ b/lib/params.cc
@@ -1,12 +1,11 @@
 #include <opkele/types.h>
 #include <opkele/exception.h>
 #include <opkele/util.h>
 #include <openssl/sha.h>
 #include <openssl/hmac.h>
-#include <mimetic/mimetic.h>
 
 namespace opkele {
     using namespace std;
 
     bool params_t::has_param(const string& n) const {
 	return find(n)!=end();
@@ -57,17 +56,13 @@ namespace opkele {
 	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);
-	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 {
 	string rv = url;
 	bool p = true;
 	if(rv.find('?')==string::npos) {
diff --git a/lib/secret.cc b/lib/secret.cc
index ae8a3c5..632a2ca 100644
--- a/lib/secret.cc
+++ b/lib/secret.cc
@@ -1,11 +1,11 @@
 #include <algorithm>
 #include <functional>
 #include <opkele/types.h>
 #include <opkele/exception.h>
-#include <mimetic/mimetic.h>
+#include <opkele/util.h>
 
 namespace opkele {
     using namespace std;
 
     template<class __a1,class __a2,class __r>
 	struct bitwise_xor : public binary_function<__a1,__a2,__r> {
@@ -20,42 +20,30 @@ namespace opkele {
 	vector<unsigned char> tmp;
 	transform(
 		begin(), end(),
 		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,
 		begin(),
 		bitwise_xor<unsigned char,unsigned char,unsigned char>() );
     }
 
     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
@@ -1,10 +1,9 @@
 #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>
 #include <opkele/data.h>
 
 namespace opkele {
@@ -110,17 +109,14 @@ namespace opkele {
 	if(ext) ext->checkid_hook(pin,pout);
 	pout.sign(assoc->secret(),pout["sig"],pout["signed"]);
     }
 
     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"));
 	}catch(failed_lookup& fl) {
 	    throw failed_assertion(OPKELE_CP_ "invalid handle or handle not specified");
 	}
diff --git a/lib/util.cc b/lib/util.cc
index d78b5e0..d9abca7 100644
--- a/lib/util.cc
+++ b/lib/util.cc
@@ -1,30 +1,80 @@
 #include <errno.h>
 #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"
 
 namespace opkele {
     using namespace std;
 
     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()");
 	    return rv;
 	}
 
@@ -35,18 +85,13 @@ namespace opkele {
 	    return rv;
 	}
 
 	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);
 	}
 
 	/*
 	 * w3c times
 	 */
 
diff --git a/libopkele.pc.in b/libopkele.pc.in
index 60bca34..286720e 100644
--- a/libopkele.pc.in
+++ b/libopkele.pc.in
@@ -5,7 +5,7 @@ includedir=@includedir@
 
 Name: libopkele
 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@