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));
}
}
}
