/**
* The signature verifies if:
* 0) we know the key for keyid
* 1) the signing algorithm of the key corresponding to keyid is same as CCNxSignature
* 2) The hash of the locallyComputedHash is the same type as the content object's ciphersuite
* 3) the signature verifies
*
* Example:
* @code
* <#example#>
* @endcode
*/
static bool
_parcInMemoryVerifier_VerifyDigest(void *interfaceContext, PARCKeyId *keyid, PARCCryptoHash *locallyComputedHash,
PARCCryptoSuite suite, PARCSignature *objectSignature)
{
PARCInMemoryVerifier *verifier = (PARCInMemoryVerifier *) interfaceContext;
const PARCKey *key = parcCryptoCache_GetKey(verifier->key_cache, keyid);
if (key == NULL) {
return false;
}
assertTrue(_parcInMemoryVerifier_AllowedCryptoSuite(interfaceContext, keyid, suite), "Invalid crypto suite for keyid");
if (parcKey_GetSigningAlgorithm(key) != parcSignature_GetSigningAlgorithm(objectSignature)) {
fprintf(stdout, "Signatured failed, signing algorithms do not match: key %s sig %s\n",
parcSigningAlgorithm_ToString(parcKey_GetSigningAlgorithm(key)),
parcSigningAlgorithm_ToString(parcSignature_GetSigningAlgorithm(objectSignature)));
return false;
}
if (parcCryptoHash_GetDigestType(locallyComputedHash) != parcCryptoSuite_GetCryptoHash(suite)) {
fprintf(stdout, "Signatured failed, digest algorithms do not match: digest %s suite %s\n",
parcCryptoHashType_ToString(parcCryptoHash_GetDigestType(locallyComputedHash)),
parcCryptoHashType_ToString(parcCryptoSuite_GetCryptoHash(suite)));
return false;
}
switch (parcSignature_GetSigningAlgorithm(objectSignature)) {
case PARCSigningAlgorithm_RSA:
return _parcInMemoryVerifier_RSAKey_Verify(verifier, locallyComputedHash, objectSignature, parcKey_GetKey(key));
case PARCSigningAlgorithm_DSA:
trapNotImplemented("DSA not supported");
break;
case PARCSigningAlgorithm_HMAC:
trapNotImplemented("HMAC not supported");
break;
default:
trapUnexpectedState("Unknown signing algorithm: %d", parcSignature_GetSigningAlgorithm(objectSignature));
}
return false;
}
const CCNxName *
ccnxManifest_GetName(const CCNxManifest *manifest)
{
CCNxManifestInterface *impl = ccnxManifestInterface_GetInterface(manifest);
const CCNxName *result = NULL;
if (impl->getName != NULL) {
result = impl->getName(manifest);
} else {
trapNotImplemented("ccnxManifest_GetName");
}
return result;
}
char *
ccnxContentObject_ToString(const CCNxContentObject *contentObject)
{
ccnxContentObject_OptionalAssertValid(contentObject);
CCNxContentObjectInterface *impl = ccnxContentObjectInterface_GetInterface(contentObject);
char *result = NULL;
if (impl->toString != NULL) {
result = impl->toString(contentObject);
} else {
trapNotImplemented("ccnxContentObject_ToString");
}
return result;
}
bool
ccnxContentObject_SetFinalChunkNumber(CCNxContentObject *contentObject, const uint64_t finalChunkNumber)
{
ccnxContentObject_OptionalAssertValid(contentObject);
CCNxContentObjectInterface *impl = ccnxContentObjectInterface_GetInterface(contentObject);
bool result = false;
if (impl->setFinalChunkNumber != NULL) {
result = impl->setFinalChunkNumber(contentObject, finalChunkNumber);
} else {
trapNotImplemented("ccnxContentObject_SetFinalChunkNumber");
}
return result;
}
bool
ccnxContentObject_SetExpiryTime(CCNxContentObject *contentObject, const uint64_t expiryTIme)
{
bool result = false;
ccnxContentObject_OptionalAssertValid(contentObject);
CCNxContentObjectInterface *impl = ccnxContentObjectInterface_GetInterface(contentObject);
if (impl->setExpiryTime != NULL) {
result = impl->setExpiryTime(contentObject, expiryTIme);
} else {
trapNotImplemented("ccnxContentObject_SetExpiryTime");
}
return result;
}
PARCBuffer *
parcJSONParser_ParseString(PARCJSONParser *parser)
{
PARCBuffer *result = NULL;
PARCBuffer *buffer = _getBuffer(parser);
if (parcBuffer_GetUint8(buffer) == '"') { // skip the initial '"' character starting the string.
PARCBufferComposer *composer = parcBufferComposer_Create();
while (parcBuffer_Remaining(buffer)) {
uint8_t c = parcBuffer_GetUint8(buffer);
if (c == '"') {
// This is the only successful way to exit this while loop.
result = parcBufferComposer_ProduceBuffer(composer);
break;
} else if (c == '\\') {
c = parcBuffer_GetUint8(buffer);
if (c == '"') {
// this special character passes directly into the composed string.
} else if (c == '\\') {
// this special character passes directly into the composed string.
} else if (c == '/') {
// this special character passes directly into the composed string.
} else if (c == 'b') {
c = '\b';
} else if (c == 'f') {
c = '\f';
} else if (c == 'n') {
c = '\n';
} else if (c == 'r') {
c = '\r';
} else if (c == 't') {
c = '\t';
} else if (c == 'u') {
// Not supporting unicode at this point.
trapNotImplemented("Unicode is not supported.");
}
} else if (iscntrl(c)) {
// !! Syntax Error.
break;
}
parcBufferComposer_PutChar(composer, c);
}
parcBufferComposer_Release(&composer);
}
return result;
}
static CCNxManifest *
_ccnxManifest_InternalCreate(const CCNxManifestInterface *impl, const CCNxName *name)
{
CCNxManifest *result = NULL;
if (impl->create != NULL) {
result = impl->create(name);
// And set the dictionary's interface pointer to the one we just used to create this.
ccnxTlvDictionary_SetMessageInterface(result, impl);
} else {
trapNotImplemented("Manifest implementations must implement create()");
}
return result;
}
uint64_t
ccnxContentObject_GetFinalChunkNumber(const CCNxContentObject *contentObject)
{
ccnxContentObject_OptionalAssertValid(contentObject);
CCNxContentObjectInterface *impl = ccnxContentObjectInterface_GetInterface(contentObject);
if (impl->hasFinalChunkNumber != NULL && !impl->hasFinalChunkNumber((CCNxTlvDictionary *) contentObject)) {
trapUnexpectedState("ContentObject has no final chunk number. Call ccnxContentObject_HasFinalChunkNumber() first.");
}
if (impl->getFinalChunkNumber != NULL) {
return impl->getFinalChunkNumber(contentObject);
} else {
trapNotImplemented("ccnxContentObject_GetFinalChunkNumber");
}
}
uint64_t
ccnxContentObject_GetExpiryTime(const CCNxContentObject *contentObject)
{
ccnxContentObject_OptionalAssertValid(contentObject);
CCNxContentObjectInterface *impl = ccnxContentObjectInterface_GetInterface(contentObject);
if (impl->hasExpiryTime != NULL && !impl->hasExpiryTime((CCNxTlvDictionary *) contentObject)) {
trapUnexpectedState("ContentObject has no ExpiryTime. Call HasExpiryTime() first.");
}
if (impl->getExpiryTime != NULL) {
return impl->getExpiryTime(contentObject);
} else {
trapNotImplemented("ccnxContentObject_HasExpiryTime");
}
}
bool
ccnxContentObject_SetPayload(CCNxContentObject *contentObject, CCNxPayloadType payloadType, const PARCBuffer *payload)
{
ccnxContentObject_OptionalAssertValid(contentObject);
CCNxContentObjectInterface *impl = ccnxContentObjectInterface_GetInterface(contentObject);
bool result = false;;
if (impl->setPayload != NULL) {
result = impl->setPayload(contentObject, payloadType, payload);;
} else {
trapNotImplemented("ccnxContentObject_SetPayload");
}
return result;
}
CCNxPayloadType
ccnxContentObject_GetPayloadType(const CCNxContentObject *contentObject)
{
ccnxContentObject_OptionalAssertValid(contentObject);
CCNxContentObjectInterface *impl = ccnxContentObjectInterface_GetInterface(contentObject);
CCNxPayloadType result = CCNxPayloadType_DATA;
if (impl->getPayloadType != NULL) {
result = impl->getPayloadType(contentObject);
} else {
trapNotImplemented("ccnxContentObject_GetPayloadType");
}
return result;
}
PARCBuffer *
ccnxContentObject_GetPayload(const CCNxContentObject *contentObject)
{
ccnxContentObject_OptionalAssertValid(contentObject);
CCNxContentObjectInterface *impl = ccnxContentObjectInterface_GetInterface(contentObject);
PARCBuffer *result = NULL;
if (impl->getPayload != NULL) {
result = impl->getPayload(contentObject);
} else {
trapNotImplemented("ccnxContentObject_GetPayload");
}
return result;
}
CCNxName *
ccnxContentObject_GetName(const CCNxContentObject *contentObject)
{
ccnxContentObject_OptionalAssertValid(contentObject);
CCNxContentObjectInterface *impl = ccnxContentObjectInterface_GetInterface(contentObject);
CCNxName *result = NULL;
if (impl->getName != NULL) {
result = impl->getName(contentObject);
} else {
trapNotImplemented("ccnxContentObject_GetName");
}
return result;
}
bool
ccnxContentObject_Equals(const CCNxContentObject *objectA, const CCNxContentObject *objectB)
{
CCNxContentObjectInterface *implA = ccnxContentObjectInterface_GetInterface(objectA);
CCNxContentObjectInterface *implB = ccnxContentObjectInterface_GetInterface(objectB);
assertNotNull(implA, "ContentObject must have an valid implementation pointer.");
assertNotNull(implB, "ContentObject must have an valid implementation pointer.");
if (implA != implB) {
return false;
}
if (implA->equals != NULL) {
return implA->equals(objectA, objectB);
} else {
trapNotImplemented("ccnxContentObject_Equals");
}
}
CCNxContentObject *
ccnxContentObject_CreateWithImplAndPayload(const CCNxContentObjectInterface *impl,
const CCNxName *contentName,
const CCNxPayloadType payloadType,
const PARCBuffer *payload)
{
CCNxContentObject *result = NULL;
if (impl->createWithNameAndPayload != NULL) {
if (contentName == NULL) {
result = impl->createWithPayload(payloadType, payload);
} else {
result = impl->createWithNameAndPayload(contentName, payloadType, payload);
}
// And set the dictionary's interface pointer to the one we just used to create this.
ccnxTlvDictionary_SetMessageInterface(result, impl);
} else {
trapNotImplemented("ContentObject implementations must implement createWithNameAndPayload()");
}
return result;
}
PARCVerifier *
ccnxValidationHmacSha256_CreateVerifier(PARCBuffer *secretKey)
{
trapNotImplemented("not finished yet");
}
