int remoteServer::init(std::string app, std::string session, std::string consumer){
std::string prefix(app);
prefix.append("_");
prefix.append(session);
Ccnx::Name interestBaseName = Ccnx::Name();
interestBaseName.appendComp(prefix);
interestBaseName.appendComp(consumer);
handler.setInterestFilter (interestBaseName, boost::bind (&remoteServer::OnInterest, this, _1, _2));
return 0;
}
Ccnx::Name remoteServer::parseMembership(Ccnx::Name name, OrganizerSession *oSession, ParticipantSession *pSession){
std::string action = name.getCompAsString(4); //action
std::string consumer = name.getCompAsString(2); //consumer
Ccnx::Name dataName = name;
if (action.compare("join") == 0 ||
action.compare("accept") == 0 ||
action.compare("reject") == 0){
dataName.appendComp("code=0");
}
std::clog<<"action: "<<action<<endl;
if (action.compare("join") == 0){
// std::string consumer = name.getCompAsString(1); //consumer
if (oSession){
std::clog<<"consumer "<<consumer<<endl;
oSession->recvJoinRemote(consumer);
}
}
if (action.compare("accept") == 0){
if (pSession){
pSession->recvAcceptJoinRemote();
}
}
if (action.compare("reject") == 0){
if (pSession){
pSession->recvRejectJoinRemote();
}
}
return dataName;
};
Ccnx::Name remote::getBaseName(Ccnx::Name name)
{
Ccnx::Name base = Ccnx::Name();
for (int i = 0; i <=4 ;i++)
{
base.appendComp(name.getCompAsString(i));
}
return base;
}
int remote::init(std::string prefix,std::string producer,
std::string consumer,std::string
endpoint,std::string action){
Ccnx::Name interestBaseName = Ccnx::Name();
interestBaseName.appendComp(prefix);
interestBaseName.appendComp(producer);
interestBaseName.appendComp(consumer);
interestBaseName.appendComp(endpoint);
interestBaseName.appendComp(action); //action
interestBaseName.appendComp("xxx"); //rand+auth_token/
// InterestBaseName = Ccnx::Name (interestName);
// Ccnx::Wrapper handler;
std::clog<<interestBaseName<<std::endl;
handler.sendInterest (interestBaseName,
Ccnx::Closure (boost::bind (&remote::runDataCallback, this, _1, _2),
boost::bind (&remote::runTimeoutCallback, this, _1, _2, _3)),
Ccnx::Selectors ().scope (Ccnx::Selectors::SCOPE_LOCAL_HOST));
// sleep (3);
return 0;
}
void remote::runDataCallback(Name name, Ccnx::PcoPtr pco)
{
std::clog<<"data callback name: "<<name<<std::endl;
Ccnx::BytesPtr content = pco->contentPtr ();
std::clog<<"data callback content: "<<content<<std::endl;
std::string action = name.getCompAsString(4); //action
std::string consumer = name.getCompAsString(2); //consumer
std::string producer = name.getCompAsString(1); //producer
std::string endPoint = name.getCompAsString(3); //endpoint
std::string prefix = name.getCompAsString(0);
std::string app;
std::string session;
vector <string> app_session;
split(prefix, app_session, "_");
app = app_session[0];
session = app_session[1];
int size = name.size();
std::string lastComponent =name.getCompAsString(size-1);
vector <string> splitPara;
split(lastComponent, splitPara, ",");
if (splitPara.size() == 1 && splitPara[0].compare("code=0") == 0)
return;
int code;
int version =0;
int flag; //1: first packet 0:later packets
int seqnum = 0;
int chunkSize = 0;
if (splitPara.size() == 3){
flag = 1;
vector <string> tmp1,tmp2,tmp3;
split(splitPara[0], tmp1, "=");
code = atoi(tmp1[1].c_str());
split(splitPara[1], tmp2, "=");
version = atoi(tmp2[1].c_str());
split(splitPara[2], tmp3, "=");
chunkSize = atoi(tmp3[1].c_str());
seqnum = 1;
}
else{
flag = 0;
std::string tmp = name.getCompFromBackAsString(1);
vector <string> chunkTmp;
split(tmp, chunkTmp, "=");
seqnum = atoi(chunkTmp[1].c_str());
// cout<<"seqnum chunk"<<seqnum<<" "<<chunk<<endl;
}
OrganizerSession *oSession;
ParticipantSession *pSession;
Context::instance()->retrieveSession(app, session, &oSession, &pSession);
if (action.compare("fetch") == 0)
{
if (endPoint.compare("public-key") == 0)
{
if (pSession)
{
pSession->recvPublicKeyRemote(producer, version, seqnum, chunkSize,
string ((char*)Ccnx::head (*content), content->size ()));
}
if (oSession)
{
oSession->recvPublicKeyRemote(producer, version, seqnum, chunkSize,
string ((char*)Ccnx::head (*content), content->size ()));
}
}
if (endPoint.compare("shared-key") == 0)
{
//decrypt
std::string privateKey;
privateKey = KeyDB::instance().getPriKey();
EVP_PKEY *pri_key = KeyDB::instance().str2priKey(privateKey);
RSA *decrypt_key;
/*for test*/
FILE *rsa_pkey_file;
rsa_pkey_file = fopen("../db/pri1.pem", "r");
if (!PEM_read_RSAPrivateKey(rsa_pkey_file, &decrypt_key, NULL, NULL))
{
fprintf(stderr, "Error loading RSA Private Key File.\n");
ERR_print_errors_fp(stderr);
}
/*test end*/
std::string encrypt_string = string ((char*)Ccnx::head (*content), content->size ());
cout<<encrypt_string<<endl;
char *encrypt = (char *)(encrypt_string.c_str());
char *decrypt = NULL;
int encrypt_len = content->size();
cout<<"encrypt_len"<<encrypt_len<<endl;
// decrypt_key = EVP_PKEY_get1_RSA(pri_key); //important line
decrypt = (char *)malloc(encrypt_len);
memset(decrypt,0,(encrypt_len));
char *err = (char *)malloc(130);
if(RSA_private_decrypt(encrypt_len, (unsigned char*)encrypt, (unsigned char*)decrypt, decrypt_key, RSA_PKCS1_OAEP_PADDING) == -1)
{
ERR_load_crypto_strings();
ERR_error_string(ERR_get_error(), err);
fprintf(stderr, "Error encrypting message: %s\n", err);
}
cout<<decrypt<<endl;
std::string decrypt_string = string(decrypt);
cout<<decrypt_string<<endl;
if (pSession)
{
pSession->recvSharedKeyRemote(version, seqnum, chunkSize,
decrypt_string);
}
}
}
if (flag == 1)
{
for (seqnum = 1; seqnum < chunkSize; seqnum++)
{
Ccnx::Name interestName = Ccnx::Name();
interestName = getBaseName(name);
interestName.appendComp("v="+boost::lexical_cast <string>(version));
interestName.appendComp("chunk="+(boost::lexical_cast <string>(seqnum+1)));
interestName.appendComp("xxx");
handler.sendInterest (interestName,
Ccnx::Closure (boost::bind (&remote::runDataCallback, this, _1, _2),
boost::bind (&remote::runTimeoutCallback, this, _1, _2, _3)),
Ccnx::Selectors ().scope (Ccnx::Selectors::SCOPE_LOCAL_HOST));
}
}
}
Ccnx::Name remoteServer::parseSharedKey(Ccnx::Name name, std::string &ret,
OrganizerSession *oSession, ParticipantSession *pSession){
int flag;
std::string consumer = name.getCompAsString(2); //consumer
std::string producer = name.getCompAsString(1); //producer
std::string endPoint = name.getCompAsString(3); //endpoint
std::string action = name.getCompAsString(4); //action
std::string prefix = name.getCompAsString(0); //prefix
int size = name.size();
int version = 0;
int chunkNum = 0;
int chunkSize = 0;
Ccnx::Name dataName = name;
if (action.compare("fetch") == 0){
std::string lastComponent = name.getCompAsString(size-2);
if (boost::starts_with(lastComponent,"chunk="))
{
flag = 1; //later packet
}
else{
flag = 0; //para
}
//
if (flag == 0){
chunkSize = 0;
chunkNum = 0;
if (oSession)
{
oSession->recvFetchSharedKeyRemote(consumer, version, chunkNum,chunkSize, ret);
}
//encrypt
vector<std::string> tmp2;
boost::split(tmp2,prefix,boost::is_any_of("_"));
std::string app = tmp2[0];
std::string publicKey[3];
KeyDB::instance().getKeyFromUser(app,(KeyDB::global), publicKey,consumer);
// cout<<"after fetch"<<endl;
cout<<"key content"<<endl;
cout<<publicKey[1]<<endl;
EVP_PKEY *pub_key = KeyDB::instance().str2Key(publicKey[1]);
// std::string plain_string = ret;
// cout<<"plain "<<plain_string<<endl;
// char *plain2 = (char *)(plain_string.c_str());
// cout<<pub_key->type<<endl;
// cout<<pub_key->pkey.ptr<<endl;
char plain[128];
sprintf(plain,"%s",ret.c_str());
// cout<<"aaaaa"<<endl;
// cout<<plain<<endl;
// plain[3]='\0';
// plain[plain_string.size()] = '\0';
// cout<<"sadfsf"<<endl;
/*for test*/
/* RSA *encrypt_key;
FILE *rsa_pkey_file;
rsa_pkey_file = fopen("../db/pub1.pub", "r");
if (rsa_pkey_file == NULL)
{
cout<<"no pointer"<<endl;
}
cout<<"before bbbbb"<<endl;
if (!PEM_read_RSA_PUBKEY(rsa_pkey_file, &encrypt_key, NULL, NULL))
{
fprintf(stderr, "Error loading RSA Public Key File.\n");
ERR_print_errors_fp(stderr);
}
fclose(rsa_pkey_file);
*/ /*test end*/
RSA *encrypt_key;
// EVP_PKEY_set1_RSA(pub_key,encrypt_key);
encrypt_key = EVP_PKEY_get1_RSA(pub_key);
int encrypt_len;
cout<<RSA_size(encrypt_key)<<endl;
char *encrypt = (char *)malloc(RSA_size(encrypt_key));
// memset(encrypt,0,RSA_size(encrypt_key));
// cout<<"before encrpyt"<<endl;
if((encrypt_len = RSA_public_encrypt(strlen(plain), (unsigned char*)plain,
(unsigned char*)encrypt, encrypt_key, RSA_PKCS1_OAEP_PADDING)) == -1) {
ERR_load_crypto_strings();
}
/* char *encrypt_test = (char *)malloc(RSA_size(encrypt_key));
// memset(encrypt,0,RSA_size(encrypt_key));
cout<<"before encrpyt"<<endl;
if((encrypt_len = RSA_public_encrypt(strlen(plain), (unsigned char*)plain,
(unsigned char*)encrypt_test, encrypt_key_test, RSA_PKCS1_OAEP_PADDING)) == -1) {
ERR_load_crypto_strings();
}
cout<<"test "<<encrypt_test<<endl;
*/
// cout<<"encrypt text:"<<endl;
// cout<<encrypt<<endl;
ret = string(encrypt,encrypt_len);
std::string tmp = "code=0,version=";
std::string v = boost::lexical_cast <string>(version);
tmp.append(v);
tmp.append(",chunk=");
std::string ch = boost::lexical_cast <string>(chunkSize);
tmp.append(ch);
dataName.appendComp(tmp);
}
else{
dataName= name;
vector<std::string> str1;
boost::split(str1,lastComponent,boost::is_any_of("="));
std::string versionComponent = name.getCompAsString(size-3);
vector<std::string> str2;
boost::split(str2,versionComponent,boost::is_any_of("="));
version = atoi(str2[1].c_str());
chunkNum = atoi(str1[1].c_str());
if (oSession)
{
oSession->recvFetchSharedKeyRemote(consumer, version, chunkNum, chunkSize, ret);
}
char *from = (char *)ret.c_str();
char *to = NULL ;
// get public key
// do_encrypt(&to, from,key,len);
}
}
else{
if (boost::starts_with(action,"update")){
dataName.appendComp("code=0");
vector<std::string> tmp;
boost::split(tmp,action,boost::is_any_of("_"));
version = atoi(tmp[1].c_str());
if (pSession)
{
pSession->recvRenewSharedKeyRemote(version);
}
//
// orgsession->recvRenewSharedKeyRemote(version);
}
}
return dataName;
};
Ccnx::Name remoteServer::parsePublicKey(Ccnx::Name name, std::string &ret,
OrganizerSession *oSession, ParticipantSession *pSession){
int flag;
// std::string consumer = name.getCompAsString(1); //consumer
// std::string producer = name.getCompAsString(2); //producer
// std::string endPoint = name.getCompAsString(3); //endpoint
// std::string action = name.getCompAsString(4); //action
std::string consumer = name.getCompAsString(2); //consumer
std::string producer = name.getCompAsString(1); //producer
std::string endPoint = name.getCompAsString(3); //endpoint
std::string action = name.getCompAsString(4); //action
int size = name.size();
int version = 0;
int chunkNum = 0;
int chunkSize = 0;
Ccnx::Name dataName = name;
if (action.compare("fetch") == 0){
std::string lastComponent = name.getCompAsString(size-2);
if (boost::starts_with(lastComponent,"chunk="))
{
flag = 1;
}
else{
flag = 0; //para
}
//
if (flag == 0){
chunkSize = 0;
chunkNum = 0;
if (oSession)
{
oSession->recvFetchPublicKeyRemote(consumer, version, chunkNum,chunkSize, ret);
}
if (pSession)
{
pSession->recvFetchPublicKeyRemote(consumer, version, chunkNum,chunkSize, ret);
}
std::string tmp = "code=0,version=";
std::string v = boost::lexical_cast <string>(version);
tmp.append(v);
tmp.append(",chunk=");
std::string ch = boost::lexical_cast <string>(chunkNum);
tmp.append(ch);
dataName.appendComp(tmp);
}
else{
dataName= name;
vector<std::string> str1;
boost::split(str1,lastComponent,boost::is_any_of("="));
std::string versionComponent = name.getCompAsString(size-3);
vector<std::string> str2;
boost::split(str2,versionComponent,boost::is_any_of("="));
version = atoi(str2[1].c_str());
chunkNum = atoi(str1[1].c_str());
if (oSession)
{
oSession->recvFetchPublicKeyRemote(consumer, version, chunkNum,chunkSize, ret);
}
if (pSession)
{
pSession->recvFetchPublicKeyRemote(consumer, version, chunkNum,chunkSize, ret);
}
}
}
return dataName;
};
