SOSCoderRef SOSCoderCreate(SOSPeerInfoRef peerInfo, SOSFullPeerInfoRef myPeerInfo, CFErrorRef *error) {
CFAllocatorRef allocator = CFGetAllocator(peerInfo);
SOSCoderRef coder = calloc(1, sizeof(struct __OpaqueSOSCoder));
CFErrorRef localError = NULL;
SecOTRFullIdentityRef myRef = NULL;
SecOTRPublicIdentityRef peerRef = NULL;
SecKeyRef privateKey = NULL;
SecKeyRef publicKey = NULL;
if (myPeerInfo && peerInfo) {
privateKey = SOSFullPeerInfoCopyDeviceKey(myPeerInfo, &localError);
require_quiet(privateKey, errOut);
myRef = SecOTRFullIdentityCreateFromSecKeyRef(allocator, privateKey, &localError);
require_quiet(myRef, errOut);
CFReleaseNull(privateKey);
publicKey = SOSPeerInfoCopyPubKey(peerInfo);
peerRef = SecOTRPublicIdentityCreateFromSecKeyRef(allocator, publicKey, &localError);
require_quiet(peerRef, errOut);
coder->sessRef = SecOTRSessionCreateFromID(allocator, myRef, peerRef);
require(coder->sessRef, errOut);
coder->waitingForDataPacket = false;
coder->pendingResponse = NULL;
CFReleaseNull(publicKey);
CFReleaseNull(privateKey);
CFReleaseNull(myRef);
CFReleaseNull(peerRef);
} else {
secnotice("coder", "NULL Coder requested, no transport security");
}
SOSCoderStart(coder, NULL);
return coder;
errOut:
secerror("Coder create failed: %@\n", localError ? localError : (CFTypeRef)CFSTR("No local error in SOSCoderCreate"));
secerror("Coder create failed: %@\n", error ? *error : (CFTypeRef)CFSTR("WTF NULL?"));
CFReleaseNull(myRef);
CFReleaseNull(peerRef);
CFReleaseNull(publicKey);
CFReleaseNull(privateKey);
free(coder);
return NULL;
}
CFDataRef SecOTRSessionCreateRemote_internal(CFDataRef publicAccountData, CFDataRef publicPeerId, CFDataRef privateAccountData, CFErrorRef *error) {
SOSDataSourceFactoryRef ds = SecItemDataSourceFactoryGetDefault();
SOSAccountRef privateAccount = NULL;
SOSAccountRef publicAccount = NULL;
CFStringRef publicKeyString = NULL;
SecKeyRef privateKeyRef = NULL;
SecKeyRef publicKeyRef = NULL;
SecOTRFullIdentityRef privateIdentity = NULL;
SecOTRPublicIdentityRef publicIdentity = NULL;
CFDataRef result = NULL;
SecOTRSessionRef ourSession = NULL;
require_quiet(ds, fail);
require_quiet(publicPeerId, fail);
privateAccount = (privateAccountData == NULL) ? CFRetainSafe(SOSKeychainAccountGetSharedAccount()) : SOSAccountCreateFromData(kCFAllocatorDefault, privateAccountData, ds, error);
require_quiet(privateAccount, fail);
privateKeyRef = SOSAccountCopyDeviceKey(privateAccount, error);
require_quiet(privateKeyRef, fail);
CFReleaseNull(privateAccount);
privateIdentity = SecOTRFullIdentityCreateFromSecKeyRef(kCFAllocatorDefault, privateKeyRef, error);
require_quiet(privateIdentity, fail);
CFReleaseNull(privateKeyRef);
publicKeyString = CFStringCreateFromExternalRepresentation(kCFAllocatorDefault, publicPeerId, kCFStringEncodingUTF8);
require_quiet(publicKeyString, fail);
publicAccount = (publicAccountData == NULL) ? CFRetainSafe(SOSKeychainAccountGetSharedAccount()) : SOSAccountCreateFromData(kCFAllocatorDefault, publicAccountData, ds, error);
require_quiet(publicAccount, fail);
publicKeyRef = SOSAccountCopyPublicKeyForPeer(publicAccount, publicKeyString, error);
require_quiet(publicKeyRef, fail);
CFReleaseNull(publicAccount);
publicIdentity = SecOTRPublicIdentityCreateFromSecKeyRef(kCFAllocatorDefault, publicKeyRef, error);
require_quiet(publicIdentity, fail);
CFReleaseNull(publicKeyRef);
ourSession = SecOTRSessionCreateFromID(kCFAllocatorDefault, privateIdentity, publicIdentity);
CFMutableDataRef exportSession = CFDataCreateMutable(kCFAllocatorDefault, 0);
SecOTRSAppendSerialization(ourSession, exportSession);
result = exportSession;
exportSession = NULL;
fail:
CFReleaseNull(ourSession);
CFReleaseNull(publicKeyString);
CFReleaseNull(privateAccount);
CFReleaseNull(publicAccount);
CFReleaseNull(privateKeyRef);
CFReleaseNull(publicKeyRef);
CFReleaseNull(publicIdentity);
CFReleaseNull(privateIdentity);
return result;
}