/** 

 * XMLSec library

 *

 * This is free software; see Copyright file in the source

 * distribution for preciese wording.

 * 

 * Copyright (C) 2002-2003 Aleksey Sanin <aleksey@aleksey.com>

 * Portion Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 

 */

#include <string.h>

#include "xmlsecc_globals.h"

#include "xmlsecc_config.h"

#include "xmlsec_xmlsec.h"

#include "xmlsec_keys.h"

#include "xmlsec_transforms.h"

#include "xmlsec_errors.h"

#include "xmlsecc_app.h"

#include "xmlsecc_crypto.h"

#include "xmlsecc_evp.h"

#ifndef XMLSEC_NO_X509   

#include "xmlsecc_x509.h"

#include "xmlsecc_x509wrapper.h"

#include "xmlsecc_bio.h"

#endif /* XMLSEC_NO_X509 */ 

/**

 * xmlSecSymbianCryptoAppInit:

 * @config:		the path to SymbianCrypto configuration (unused).

 * 

 * General crypto engine initialization. This function is used

 * by XMLSec command line utility and called before 

 * @xmlSecInit function.

 *

 * Returns 0 on success or a negative value otherwise.

 */

EXPORT_C

int

xmlSecSymbianCryptoAppInit(const char* config ATTRIBUTE_UNUSED) {

    int ret(0);

    if( ret ) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "symbiancrypto_init",

		    XMLSEC_ERRORS_R_CRYPTO_FAILED,

		    "ret=%d", ret);

	return(-1);

    }

    return(0);

}

/**

 * xmlSecSymbianCryptoAppShutdown:

 * 

 * General crypto engine shutdown. This function is used

 * by XMLSec command line utility and called after 

 * @xmlSecShutdown function.

 *

 * Returns 0 on success or a negative value otherwise.

 */

EXPORT_C

int

xmlSecSymbianCryptoAppShutdown(void) {

    return(0);

}

/**

 * xmlSecSymbianCryptoAppKeyLoadWithName:

 * @filename:		the key filename.

 * @format:		the key file format.

 * @keyname:    the assigned name of key

 * @pwd:		the key file password.

 * @pwdCallback:	the key password callback.

 * @pwdCallbackCtx:	the user context for password callback.

 *

 * Reads key from the a file (not implemented yet).

 *

 * Returns pointer to the key or NULL if an error occurs.

 */

EXPORT_C

xmlSecKeyPtr

xmlSecSymbianCryptoAppKeyLoadWithName(const char* filename, xmlSecKeyDataFormat format,

			const char* keyname,

			const char* pwd,

			void* pwdCallback,

			void* pwdCallbackCtx) {			

    xmlSecKeyPtr key = NULL;

    EVP_PKEY* pKey = NULL; 

    BIO* bio;

    xmlSecKeyDataPtr data;  

    xmlSecAssert2(filename, NULL);

    xmlSecAssert2(format != xmlSecKeyDataFormatUnknown, NULL);

    bio = BIO_new_file(filename, (const char*)"rb", keyname);

    if(!bio) {

	return(NULL);    

    }	

    key = xmlSecSymbianCryptoAppKeyLoadBIO (bio, format, pwd, pwdCallback, pwdCallbackCtx);

    BIO_free(bio);

    if(!key) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "xmlSecOpenSSLAppKeyLoadBIO",

		    XMLSEC_ERRORS_R_XMLSEC_FAILED,

		    "filename=%s", 

		    xmlSecErrorsSafeString(filename));

	return(NULL);

    }

    if(xmlSecKeySetName(key, (const unsigned char*)keyname) < 0) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "xmlSecKeySetName",

		    XMLSEC_ERRORS_R_XMLSEC_FAILED,

		    "filename=%s", 

		    xmlSecErrorsSafeString(filename));

	xmlSecKeyDestroy(key);

	return(NULL);

    }

    return(key);

}

/**

 * xmlSecSymbianCryptoAppKeyLoadMemory:

 * @data:		the binary key data.

 * @dataSize:		the size of binary key.

 * @format:		the key file format.

 * @pwd:		the key file password.

 * @pwdCallback:	the key password callback.

 * @pwdCallbackCtx:	the user context for password callback.

 *

 * Reads key from the memory buffer (not implemented yet).

 *

 * Returns pointer to the key or NULL if an error occurs.

 */

EXPORT_C

xmlSecKeyPtr

xmlSecSymbianCryptoAppKeyLoadMemoryWithName(const xmlSecByte* data, xmlSecSize dataSize, 

			xmlSecKeyDataFormat format, const char* keyname, const char* pwd, 

			void* pwdCallback, void* pwdCallbackCtx) {

    xmlSecKeyPtr key = NULL;

    EVP_PKEY* pKey = NULL; 

    BIO* bio;

    bio = BIO_new_buffer((const char*)data,dataSize,keyname);

    if(!bio) {

	return(NULL);    

    }

    key = xmlSecSymbianCryptoAppKeyLoadBIO(bio, format, pwd, pwdCallback, pwdCallbackCtx);

    BIO_free(bio);

    if(!key) {

	    return(NULL);

    }    

    if(xmlSecKeySetName(key, (const unsigned char*)keyname) < 0) {

        xmlSecKeyDestroy(key);

	    return(NULL);

    }

    return(key);

}

/**

 * xmlSecOpenSSLAppKeyLoadBIO:

 * @bio:		the key BIO.

 * @format:		the key file format.

 * @pwd:		the key file password.

 * @pwdCallback:	the key password callback.

 * @pwdCallbackCtx:	the user context for password callback.

 *

 * Reads key from the an OpenSSL BIO object.

 *

 * Returns pointer to the key or NULL if an error occurs.

 */

EXPORT_C

xmlSecKeyPtr

xmlSecSymbianCryptoAppKeyLoadBIO(BIO* bio, xmlSecKeyDataFormat format,

			const char* pwd, void* pwdCallback, 

			void* pwdCallbackCtx) {

    xmlSecKeyPtr key = NULL;

    xmlSecKeyDataPtr data;

    EVP_PKEY* pKey = NULL;    

    int ret(-1);

    xmlSecAssert2(bio, NULL);

    xmlSecAssert2(format != xmlSecKeyDataFormatUnknown, NULL);

    switch (format)

    {

		case xmlSecKeyDataFormatDer:	

        /* try to read private key first */           

	    if(!pKey) {

       	    // go to start of the file and try to read public key 

		    pKey = d2i_PUBKEY_bio(bio);

		    if(!pKey) {

			xmlSecError(XMLSEC_ERRORS_HERE,

				    NULL,

				    "d2i_PrivateKey_bio and d2i_PUBKEY_bio",

				    XMLSEC_ERRORS_R_CRYPTO_FAILED,

				    XMLSEC_ERRORS_NO_MESSAGE);

			return(NULL);

		    }

		}

		break;

    	case xmlSecKeyDataFormatPkcs8Der:

        /* try to read private key first */    

		pKey = d2i_PKCS8PrivateKey_bio(bio, pwdCallback, pwdCallbackCtx);

	    if(!pKey) {

		    xmlSecError(XMLSEC_ERRORS_HERE,

				NULL,

				"sc_PrivateKey_read",

				XMLSEC_ERRORS_R_CRYPTO_FAILED,

				XMLSEC_ERRORS_NO_MESSAGE);

		    return(NULL);

		}    					    		  

    	break;

    	default:

			xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    NULL,

		    XMLSEC_ERRORS_R_INVALID_FORMAT,

		    "format=%d", format); 

			return(NULL);    	

    } 

	data = xmlSecSymbianCryptoEvpKeyAdopt(pKey);

    if(!data) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "xmlSecSymbianCryptoEvpKeyAdopt",

		    XMLSEC_ERRORS_R_XMLSEC_FAILED,

		    XMLSEC_ERRORS_NO_MESSAGE);

	sc_pkey_free(pKey);

	return(NULL);	    

    }    

    key = xmlSecKeyCreate();

    if(!key) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "xmlSecKeyCreate",

		    XMLSEC_ERRORS_R_XMLSEC_FAILED,

		    XMLSEC_ERRORS_NO_MESSAGE);

	xmlSecKeyDataDestroy(data);

	return(NULL);

    }

    ret = xmlSecKeySetValue(key, data);

    if(ret < 0) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "xmlSecKeySetValue",

		    XMLSEC_ERRORS_R_XMLSEC_FAILED,

		    "data=%s",

		    xmlSecErrorsSafeString(xmlSecKeyDataGetName(data)));

	xmlSecKeyDestroy(key);

	xmlSecKeyDataDestroy(data);

	return(NULL);

    } 

    return(key);

}

#ifndef XMLSEC_NO_X509

static X509*		xmlSecSymbianCryptoAppCertLoadBIO		(BIO* bio,

								 xmlSecKeyDataFormat format);

/**

 * xmlSecSymbianCryptoAppKeyCertLoad:

 * @key:		the pointer to key.

 * @filename:		the certificate filename.

 * @format:		the certificate file format.

 *

 * Reads the certificate from $@filename and adds it to key

 * (not implemented yet).

 * 

 * Returns 0 on success or a negative value otherwise.

 */

EXPORT_C

int		

xmlSecSymbianCryptoAppKeyCertLoad(xmlSecKeyPtr key, const char* filename, 

			  xmlSecKeyDataFormat format) {

	BIO* bio(NULL);

	int ret(-1);

    xmlSecAssert2(key, -1);

    xmlSecAssert2(filename, -1);

    xmlSecAssert2(format != xmlSecKeyDataFormatUnknown, -1);

    /* Implementation from OpenSSL */

    bio = BIO_new_file(filename, "rb", NULL);

    if(!bio) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "BIO_new_file",

		    XMLSEC_ERRORS_R_CRYPTO_FAILED,

		    "filename=%s", 

		    xmlSecErrorsSafeString(filename));

	return(-1);    

    }

    ret = xmlSecSymbianCryptoAppKeyCertLoadBIO (key, bio, format);

    if(ret < 0) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "xmlSecSymbianCryptoAppKeyCertLoadBIO",

		    XMLSEC_ERRORS_R_XMLSEC_FAILED,

		    "filename=%s", 

		    xmlSecErrorsSafeString(filename));

	BIO_free(bio);

	return(-1);

    }

    BIO_free(bio);

    return(0);

}

/**

 * xmlSecSymbianCryptoAppKeyCertLoadBIO:

 * @key:		the pointer to key.

 * @bio:		the certificate bio.

 * @format:		the certificate file format.

 *

 * Reads the certificate from memory buffer and adds it to key.

 * 

 * Returns 0 on success or a negative value otherwise.

 */

EXPORT_C

int		

xmlSecSymbianCryptoAppKeyCertLoadBIO(xmlSecKeyPtr key, BIO* bio, xmlSecKeyDataFormat format) {

    xmlSecKeyDataFormat certFormat;

    xmlSecKeyDataPtr data;

    X509* cert(NULL);

    int ret(-1);

    xmlSecAssert2(key, -1);

    xmlSecAssert2(bio, -1);

    xmlSecAssert2(format != xmlSecKeyDataFormatUnknown, -1);

    data = xmlSecKeyEnsureData(key, xmlSecSymbianCryptoKeyDataX509Id);

    if(!data) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "xmlSecKeyEnsureData",		    

		    XMLSEC_ERRORS_R_XMLSEC_FAILED,

		    "transform=%s",

		    xmlSecErrorsSafeString(xmlSecTransformKlassGetName(xmlSecSymbianCryptoKeyDataX509Id)));

	return(-1);

    }

    /* adjust cert format */

    switch(format) {

    case xmlSecKeyDataFormatPkcs8Pem:

	certFormat = xmlSecKeyDataFormatPem;

	break;

    case xmlSecKeyDataFormatPkcs8Der:

	certFormat = xmlSecKeyDataFormatDer;

	break;

    default:

	certFormat = format;

    }

    cert = xmlSecSymbianCryptoAppCertLoadBIO(bio, certFormat);

    if(!cert) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "xmlSecSymbianCryptoAppCertLoad", 

		    XMLSEC_ERRORS_R_XMLSEC_FAILED,

		    XMLSEC_ERRORS_NO_MESSAGE);

	return(-1);    

    }    	

    ret = xmlSecSymbianCryptoKeyDataX509AdoptKeyCert(data, cert);

    if(ret < 0) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "xmlSecSymbianCryptoKeyDataX509AdoptCert",

		    XMLSEC_ERRORS_R_XMLSEC_FAILED,

		    "data=%s",

		    xmlSecErrorsSafeString(xmlSecKeyDataGetName(data)));

	X509_free(cert);

	return(-1);    

    }

    return(0);        

}

/**

 * xmlSecSymbianCryptoAppKeyCertLoadMemory:

 * @key:		the pointer to key.

 * @data:		the certificate binary data.

 * @dataSize:		the certificate binary data size.

 * @format:		the certificate file format.

 *

 * Reads the certificate from memory buffer and adds it to key (not implemented yet).

 * 

 * Returns 0 on success or a negative value otherwise.

 */

EXPORT_C

int		

xmlSecSymbianCryptoAppKeyCertLoadMemory(xmlSecKeyPtr key, 

                                    const xmlSecByte* data, 

                                    xmlSecSize dataSize, 

			        xmlSecKeyDataFormat format) {

    xmlSecAssert2(key, -1);

    xmlSecAssert2(data, -1);

    xmlSecAssert2(format != xmlSecKeyDataFormatUnknown, -1);

    int ret(-1);

    BIO* bio(NULL);

    bio = BIO_new_buffer((const char*)data,dataSize,NULL);

    if(!bio) {

	    return(-1);    

    }

    ret = xmlSecSymbianCryptoAppKeyCertLoadBIO (key, bio, format);

    BIO_free(bio);

    if(ret < 0) {

	    return(-1);

    }

    return(0);

}

/**

 * xmlSecSymbianCryptoAppPEMReadPrivateKey:

 * @filename:		the PEM key filename.

 * @pwd:		the PEM file password.

 * @pwdCallback:	the password callback.

 * @pwdCallbackCtx:	the user context for password callback.

 *

 * Reads key and all associated certificates from the PKCS12 file

 * (not implemented yet).

 * For uniformity, call xmlSecSymbianCryptoAppKeyLoad instead of this function. Pass

 * in format=xmlSecKeyDataFormatPkcs12.

 *

 * Returns pointer to the key or NULL if an error occurs.

 */

xmlSecKeyPtr	

xmlSecSymbianCryptoAppPEMReadPrivateKey(const char* filename, 

			  const char* pwd ATTRIBUTE_UNUSED,

		          void* pwdCallback ATTRIBUTE_UNUSED, 

			  void* pwdCallbackCtx ATTRIBUTE_UNUSED) {

    xmlSecAssert2(filename, NULL);

    /* Unimplemented - for futher use */

    xmlSecError(XMLSEC_ERRORS_HERE,

		NULL,

		"xmlSecSymbianCryptoAppPEMReadPrivateKey",

		XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		XMLSEC_ERRORS_NO_MESSAGE);

    return(NULL); 

}

/**

 * xmlSecSymbianCryptoAppPkcs12Load:

 * @filename:		the PKCS12 key filename.

 * @pwd:		the PKCS12 file password.

 * @pwdCallback:	the password callback.

 * @pwdCallbackCtx:	the user context for password callback.

 *

 * Reads key and all associated certificates from the PKCS12 file

 * (not implemented yet).

 * For uniformity, call xmlSecSymbianCryptoAppKeyLoad instead of this function. Pass

 * in format=xmlSecKeyDataFormatPkcs12.

 *

 * Returns pointer to the key or NULL if an error occurs.

 */

EXPORT_C

xmlSecKeyPtr	

xmlSecSymbianCryptoAppPkcs12Load(const char* filename, 

			  const char* pwd ATTRIBUTE_UNUSED,

		          void* pwdCallback ATTRIBUTE_UNUSED, 

			  void* pwdCallbackCtx ATTRIBUTE_UNUSED) {

    xmlSecAssert2(filename, NULL);

    /* Unimplemented - for futher use */

    xmlSecError(XMLSEC_ERRORS_HERE,

		NULL,

		"xmlSecSymbianCryptoAppPkcs12Load",

		XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		XMLSEC_ERRORS_NO_MESSAGE);

    return(NULL); 

}

/**

 * xmlSecSymbianCryptoAppPkcs12LoadMemory:

 * @data:		the PKCS12 binary data.

 * @dataSize:		the PKCS12 binary data size.

 * @pwd:		the PKCS12 file password.

 * @pwdCallback:	the password callback.

 * @pwdCallbackCtx:	the user context for password callback.

 *

 * Reads key and all associated certificates from the PKCS12 data in memory buffer.

 * For uniformity, call xmlSecSymbianCryptoAppKeyLoadMemory instead of this function. Pass

 * in format=xmlSecKeyDataFormatPkcs12 (not implemented yet).

 *

 * Returns pointer to the key or NULL if an error occurs.

 */

EXPORT_C

xmlSecKeyPtr	

xmlSecSymbianCryptoAppPkcs12LoadMemory(const xmlSecByte* data, xmlSecSize dataSize, 

			   const char* pwd, void* pwdCallback, 

			   void* pwdCallbackCtx) {

    xmlSecAssert2(data, NULL);

    /* Unimplemented - for futher use */

    xmlSecError(XMLSEC_ERRORS_HERE,

		NULL,

		"xmlSecSymbianCryptoAppPkcs12LoadMemory",

		XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		XMLSEC_ERRORS_NO_MESSAGE);

    return(NULL); 

}

/**