1 files changed, 187 insertions, 0 deletions
diff --git a/libccnx-common/ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_ManifestDecoder.c b/libccnx-common/ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_ManifestDecoder.c
new file mode 100644
index 00000000..87665de1
--- /dev/null
+++ b/libccnx-common/ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_ManifestDecoder.c
@@ -0,0 +1,187 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+/**
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <LongBow/runtime.h>
+
+#include <parc/algol/parc_Memory.h>
+#include <parc/algol/parc_Object.h>
+#include <parc/algol/parc_Buffer.h>
+
+#include <ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_Types.h>
+#include <ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_ManifestDecoder.h>
+
+#include <ccnx/common/codec/ccnxCodec_TlvUtilities.h>
+#include <ccnx/common/ccnx_PayloadType.h>
+#include <ccnx/common/ccnx_InterestReturn.h>
+#include <ccnx/common/ccnx_Manifest.h>
+#include <ccnx/common/ccnx_ManifestHashGroup.h>
+
+static bool
+_decodeHashGroupMetadata(CCNxCodecTlvDecoder *decoder, CCNxManifestHashGroup *group, size_t length)
+{
+    size_t offset = 0;
+    bool success = true;
+
+    while (offset < length) {
+        uint16_t type = ccnxCodecTlvDecoder_GetType(decoder);
+        uint16_t value_length = ccnxCodecTlvDecoder_GetLength(decoder);
+        PARCBuffer *value = ccnxCodecTlvDecoder_GetValue(decoder, value_length);
+
+        offset += (4 + value_length);
+
+        switch (type) {
+            case CCNxCodecSchemaV1Types_CCNxManifestHashGroupMetadata_Locator: {
+                char *nameString = parcBuffer_ToString(value);
+                const CCNxName *locator = ccnxName_CreateFromCString(nameString);
+                ccnxManifestHashGroup_SetLocator(group, locator);
+                parcMemory_Deallocate(&nameString);
+                ccnxName_Release((CCNxName **) &locator);
+                break;
+            }
+            case CCNxCodecSchemaV1Types_CCNxManifestHashGroupMetadata_DataSize: {
+                uint64_t dataSize = parcBuffer_GetUint64(value);
+                ccnxManifestHashGroup_SetDataSize(group, dataSize);
+                break;
+            }
+            case CCNxCodecSchemaV1Types_CCNxManifestHashGroupMetadata_BlockSize: {
+                uint64_t blockSize = parcBuffer_GetUint64(value);
+                ccnxManifestHashGroup_SetBlockSize(group, blockSize);
+                break;
+            }
+            case CCNxCodecSchemaV1Types_CCNxManifestHashGroupMetadata_EntrySize: {
+                uint64_t entrySize = parcBuffer_GetUint64(value);
+                ccnxManifestHashGroup_SetEntrySize(group, entrySize);
+                break;
+            }
+            case CCNxCodecSchemaV1Types_CCNxManifestHashGroupMetadata_TreeHeight: {
+                uint64_t treeHeight = parcBuffer_GetUint64(value);
+                ccnxManifestHashGroup_SetTreeHeight(group, treeHeight);
+                break;
+            }
+            case CCNxCodecSchemaV1Types_CCNxManifestHashGroupMetadata_OverallDataSha256: {
+                ccnxManifestHashGroup_SetOverallDataDigest(group, value);
+                break;
+            }
+        }
+
+        parcBuffer_Release(&value);
+    }
+
+    return success;
+}
+
+static bool
+_decodeHashGroup(CCNxCodecTlvDecoder *decoder, CCNxTlvDictionary *packetDictionary, CCNxManifestHashGroup *group, size_t length)
+{
+    bool success = true;
+    size_t offset = 0;
+
+    while (offset < length) {
+        uint16_t type = ccnxCodecTlvDecoder_GetType(decoder);
+        uint16_t value_length = ccnxCodecTlvDecoder_GetLength(decoder);
+
+        offset += (4 + value_length);
+
+        switch (type) {
+            case CCNxCodecSchemaV1Types_CCNxManifestHashGroup_Metadata: {
+                success = _decodeHashGroupMetadata(decoder, group, value_length);
+                if (!success) {
+                    return false;
+                }
+                break;
+            }
+
+            case CCNxCodecSchemaV1Types_CCNxManifestHashGroup_DataPointer: {
+                PARCBuffer *buffer = ccnxCodecTlvDecoder_GetValue(decoder, value_length);
+                ccnxManifestHashGroup_AppendPointer(group, CCNxManifestHashGroupPointerType_Data, buffer);
+                parcBuffer_Release(&buffer);
+                break;
+            }
+
+            case CCNxCodecSchemaV1Types_CCNxManifestHashGroup_ManifestPointer: {
+                PARCBuffer *buffer = ccnxCodecTlvDecoder_GetValue(decoder, value_length);
+                ccnxManifestHashGroup_AppendPointer(group, CCNxManifestHashGroupPointerType_Manifest, buffer);
+                parcBuffer_Release(&buffer);
+                break;
+            }
+
+            default:
+                // if we do not know the TLV type, put it in this container's unknown list
+                success = ccnxCodecTlvUtilities_PutAsListBuffer(decoder, packetDictionary, type, value_length, CCNxCodecSchemaV1TlvDictionary_Lists_MESSAGE_LIST);
+                break;
+        }
+
+        if (!success) {
+            CCNxCodecError *error = ccnxCodecError_Create(TLV_ERR_DECODE, __func__, __LINE__, ccnxCodecTlvDecoder_Position(decoder));
+            ccnxCodecTlvDecoder_SetError(decoder, error);
+            ccnxCodecError_Release(&error);
+        }
+    }
+
+    CCNxManifestInterface *manifest = ccnxManifestInterface_GetInterface(packetDictionary);
+    manifest->addHashGroup(packetDictionary, group);
+
+    return success;
+}
+
+static bool
+_decodeType(CCNxCodecTlvDecoder *decoder, CCNxTlvDictionary *packetDictionary, uint16_t type, uint16_t length)
+{
+    bool success = false;
+    switch (type) {
+        case CCNxCodecSchemaV1Types_CCNxMessage_Name: {
+            success = ccnxCodecTlvUtilities_PutAsName(decoder, packetDictionary, type, length, CCNxCodecSchemaV1TlvDictionary_MessageFastArray_NAME);
+            break;
+        }
+
+        case CCNxCodecSchemaV1Types_CCNxMessage_HashGroup: {
+            CCNxManifestHashGroup *group = ccnxManifestHashGroup_Create();
+            success = _decodeHashGroup(decoder, packetDictionary, group, length);
+            ccnxManifestHashGroup_Release(&group);
+            break;
+        }
+
+        default:
+            // if we do not know the TLV type, put it in this container's unknown list
+            success = ccnxCodecTlvUtilities_PutAsListBuffer(decoder, packetDictionary, type, length, CCNxCodecSchemaV1TlvDictionary_Lists_MESSAGE_LIST);
+            break;
+    }
+
+    if (!success) {
+        CCNxCodecError *error = ccnxCodecError_Create(TLV_ERR_DECODE, __func__, __LINE__, ccnxCodecTlvDecoder_Position(decoder));
+        ccnxCodecTlvDecoder_SetError(decoder, error);
+        ccnxCodecError_Release(&error);
+    }
+    return success;
+}
+
+/*
+ * We are given a decoder that points to the first TLV of a list of TLVs.  We keep walking the
+ * list until we come to the end of the decoder.
+ */
+bool
+ccnxCodecSchemaV1ManifestDecoder_Decode(CCNxCodecTlvDecoder *decoder, CCNxTlvDictionary *manifestDictionary)
+{
+    return ccnxCodecTlvUtilities_DecodeContainer(decoder, manifestDictionary, _decodeType);
+}