/**
* Create and return a CCNxInterest whose Name contains our commend (e.g. "fetch" or "list"),
* and, optionally, the name of a target object (e.g. "file.txt"). The newly created CCNxInterest
* must eventually be released by calling ccnxInterest_Release().
*
* @param command The command to embed in the created CCNxInterest.
* @param targetName The name of the content, if any, that the command applies to.
*
* @return A newly created CCNxInterest for the specified command and targetName.
*/
static CCNxInterest *
_createInterest(const char *command, const char *targetName)
{
CCNxName *interestName = ccnxName_CreateFromURI(tutorialCommon_DomainPrefix); // Start with the prefix. We append to this.
// Create a NameSegment for our command, which we will append after the prefix we just created.
PARCBuffer *commandBuffer = parcBuffer_WrapCString((char *) command);
CCNxNameSegment *commandSegment = ccnxNameSegment_CreateTypeValue(CCNxNameLabelType_NAME, commandBuffer);
parcBuffer_Release(&commandBuffer);
// Append the new command segment to the prefix
ccnxName_Append(interestName, commandSegment);
ccnxNameSegment_Release(&commandSegment);
// If we have a target, then create another NameSegment for it and append that.
if (targetName != NULL) {
// Create a NameSegment for our target object
PARCBuffer *targetBuf = parcBuffer_WrapCString((char *) targetName);
CCNxNameSegment *targetSegment = ccnxNameSegment_CreateTypeValue(CCNxNameLabelType_NAME, targetBuf);
parcBuffer_Release(&targetBuf);
// Append it to the ccnxName.
ccnxName_Append(interestName, targetSegment);
ccnxNameSegment_Release(&targetSegment);
}
CCNxInterest *result = ccnxInterest_CreateSimple(interestName);
ccnxName_Release(&interestName);
return result;
}
LONGBOW_TEST_CASE(Global, ccnxTlvCodecName_Encode)
{
uint8_t truthBytes[] = { 0x10, 0x20, 0x00, 0x0E, 0x00, CCNxNameLabelType_NAME, 0x00, 0x0A, 'b', 'r', 'a', 'n', 'd', 'y', 'w', 'i', 'n', 'e' };
PARCBuffer *truth = parcBuffer_Wrap(truthBytes, sizeof(truthBytes), 0, sizeof(truthBytes));
CCNxCodecTlvEncoder *encoder = ccnxCodecTlvEncoder_Create();
ccnxCodecTlvEncoder_Initialize(encoder);
PARCBuffer *buffer = parcBuffer_WrapCString("brandywine");
CCNxNameSegment *segment = ccnxNameSegment_CreateTypeValue(CCNxNameLabelType_NAME, buffer);
CCNxName *name = ccnxName_Append(ccnxName_Create(), segment);
ccnxNameSegment_Release(&segment);
parcBuffer_Release(&buffer);
ccnxCodecSchemaV1NameCodec_Encode(encoder, 0x1020, name);
ccnxCodecTlvEncoder_Finalize(encoder);
PARCBuffer *test = ccnxCodecTlvEncoder_CreateBuffer(encoder);
if (!parcBuffer_Equals(truth, test)) {
printf("Buffers do not match\n");
printf("Excpected:\n");
parcBuffer_Display(truth, 3);
printf("Got:\n");
parcBuffer_Display(test, 3);
assertTrue(parcBuffer_Equals(truth, test), "Buffers do not match");
}
ccnxName_Release(&name);
parcBuffer_Release(&test);
ccnxCodecTlvEncoder_Destroy(&encoder);
parcBuffer_Release(&truth);
}
CCNxInterestPayloadId *
ccnxInterestPayloadId_CreateAsSHA256Hash(const PARCBuffer *data)
{
CCNxInterestPayloadId *result = parcObject_CreateInstance(CCNxInterestPayloadId);
PARCCryptoHasher *hasher = parcCryptoHasher_Create(PARCCryptoHashType_SHA256);
parcCryptoHasher_Init(hasher);
parcCryptoHasher_UpdateBuffer(hasher, data);
PARCCryptoHash *hash = parcCryptoHasher_Finalize(hasher);
parcCryptoHasher_Release(&hasher);
PARCBuffer *hashData = parcCryptoHash_GetDigest(hash);
PARCBuffer *codedHash = parcBuffer_Allocate(parcBuffer_Capacity(hashData) + 1);
parcBuffer_PutUint8(codedHash, CCNxInterestPayloadId_TypeCode_RFC6920_SHA256);
parcBuffer_PutBuffer(codedHash, hashData);
parcBuffer_Flip(codedHash);
result->nameSegment =
ccnxNameSegment_CreateTypeValue(CCNxNameLabelType_PAYLOADID, codedHash);
parcBuffer_Release(&codedHash);
parcCryptoHash_Release(&hash);
return result;
}
CCNxNameSegment *
ccnxNameSegment_CreateTypeValueArray(CCNxNameLabelType type, size_t length, const char array[length])
{
PARCBuffer *value = parcBuffer_PutArray(parcBuffer_Allocate(length), length, (const uint8_t *) array);
parcBuffer_Flip(value);
CCNxNameSegment *result = ccnxNameSegment_CreateTypeValue(type, value);
parcBuffer_Release(&value);
return result;
}
CCNxInterestPayloadId *
ccnxInterestPayloadId_Create(const PARCBuffer *data, uint8_t type)
{
CCNxInterestPayloadId *result = parcObject_CreateInstance(CCNxInterestPayloadId);
parcBuffer_AssertValid(data);
PARCBuffer *buffer = parcBuffer_Allocate(parcBuffer_Capacity(data) + 1);
assertTrue(type > CCNxInterestPayloadId_TypeCode_App, "App type must be greater than 0x80");
parcBuffer_PutUint8(buffer, type);
parcBuffer_PutBuffer(buffer, data);
parcBuffer_Flip(buffer);
result->nameSegment = ccnxNameSegment_CreateTypeValue(CCNxNameLabelType_PAYLOADID, buffer);
parcBuffer_Release(&buffer);
return result;
}
LONGBOW_TEST_CASE(Global, ccnxTlvCodecName_Decode_RightType)
{
PARCBuffer *buffer = parcBuffer_WrapCString("brandywine");
CCNxNameSegment *segment = ccnxNameSegment_CreateTypeValue(CCNxNameLabelType_NAME, buffer);
CCNxName *truth = ccnxName_Append(ccnxName_Create(), segment);
ccnxNameSegment_Release(&segment);
parcBuffer_Release(&buffer);
uint8_t decodeBytes[] = { 0x10, 0x20, 0x00, 0x0E, 0x00, CCNxNameLabelType_NAME, 0x00, 0x0A, 'b', 'r', 'a', 'n', 'd', 'y', 'w', 'i', 'n', 'e' };
PARCBuffer *decodeBuffer = parcBuffer_Wrap(decodeBytes, sizeof(decodeBytes), 0, sizeof(decodeBytes));
CCNxCodecTlvDecoder *decoder = ccnxCodecTlvDecoder_Create(decodeBuffer);
CCNxName *test = ccnxCodecSchemaV1NameCodec_Decode(decoder, 0x1020);
assertTrue(ccnxName_Equals(truth, test), "Name segments do not match");
ccnxName_Release(&test);
ccnxCodecTlvDecoder_Destroy(&decoder);
parcBuffer_Release(&decodeBuffer);
ccnxName_Release(&truth);
}