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Blockchain: Change of block format.

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File records:
* Add unique ID to file record.
* Introducing tags which are flexible. Close #31
* Name and Directory fields are now tags.
* Embedded basic compression by storing duplicate file tags as single record.
Added date field to record structure.
This commit is contained in:
Kleissner
2021-08-27 03:12:30 +02:00
parent ea80588fa1
commit a2384ca627
7 changed files with 387 additions and 177 deletions
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75
Test_test.go
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@@ -7,6 +7,7 @@ import (
"testing"
"github.com/btcsuite/btcd/btcec"
"github.com/google/uuid"
)
func TestMessageEncodingAnnouncement(t *testing.T) {
@@ -90,13 +91,21 @@ func TestBlockEncoding(t *testing.T) {
return
}
file1 := BlockRecordFile{Hash: hashData([]byte("Test data")), Type: TypeText, Format: FormatText, Size: 9, Name: "Filename 1.txt", Directory: "documents\\sub folder"}
encoded1, _ := encodeBlockRecordUser(BlockRecordUser{Valid: true, Name: "Test User 1"})
encoded2, _ := encodeBlockRecordFiles([]BlockRecordFile{file1})
encoded1, _ := encodeBlockRecordUser(BlockRecordUser{Name: "Test User 1"})
file1 := BlockRecordFile{Hash: hashData([]byte("Test data")), Type: TypeText, Format: FormatText, Size: 9, ID: uuid.New()}
file1.TagsDecoded = append(file1.TagsDecoded, FileTagName{Name: "Filename 1.txt"})
file1.TagsDecoded = append(file1.TagsDecoded, FileTagDirectory{Directory: "documents\\sub folder"})
file2 := BlockRecordFile{Hash: hashData([]byte("Test data 2")), Type: TypeText, Format: FormatText, Size: 9, ID: uuid.New()}
file2.TagsDecoded = append(file2.TagsDecoded, FileTagName{Name: "Filename 2.txt"})
file2.TagsDecoded = append(file2.TagsDecoded, FileTagDirectory{Directory: "documents\\sub folder"})
encodedFiles, _ := encodeBlockRecordFiles([]BlockRecordFile{file1, file2})
blockE := &Block{BlockchainVersion: 42, Number: 0}
blockE.RecordsRaw = append(blockE.RecordsRaw, encoded1...)
blockE.RecordsRaw = append(blockE.RecordsRaw, encoded2...)
blockE.RecordsRaw = append(blockE.RecordsRaw, encodedFiles...)
raw, err := encodeBlock(blockE, privateKey)
if err != nil {
@@ -119,14 +128,23 @@ func TestBlockEncoding(t *testing.T) {
// output the block details
fmt.Printf("Block details:\n----------------\nNumber: %d\nVersion: %d\nLast Hash: %s\nPublic Key: %s\n", block.Number, block.BlockchainVersion, hex.EncodeToString(block.LastBlockHash), hex.EncodeToString(block.OwnerPublicKey.SerializeCompressed()))
for _, file := range decoded.Files {
fmt.Printf("* File %s\n", file.Name)
fmt.Printf(" Directory %s\n", file.Directory)
fmt.Printf(" Size %d\n", file.Size)
fmt.Printf(" Type %d\n", file.Type)
fmt.Printf(" Format %d\n", file.Format)
fmt.Printf(" Hash %s\n", hex.EncodeToString(file.Hash))
fmt.Printf(" Directory ID %d\n\n", file.directoryID)
for _, decodedR := range decoded.RecordsDecoded {
if file, ok := decodedR.(BlockRecordFile); ok {
fmt.Printf("* File %s\n", file.ID.String())
fmt.Printf(" Size %d\n", file.Size)
fmt.Printf(" Type %d\n", file.Type)
fmt.Printf(" Format %d\n", file.Format)
fmt.Printf(" Hash %s\n", hex.EncodeToString(file.Hash))
for _, decodedT := range file.TagsDecoded {
switch v := decodedT.(type) {
case FileTagName:
fmt.Printf(" Name %s\n", v.Name)
case FileTagDirectory:
fmt.Printf(" Directory %s\n", v.Directory)
}
}
}
}
}
@@ -144,7 +162,9 @@ func TestBlockchainAdd(t *testing.T) {
initTestPrivateKey()
initUserBlockchain()
file1 := BlockRecordFile{Hash: hashData([]byte("Test data")), Type: TypeText, Format: FormatText, Size: 9, Name: "Filename 1.txt", Directory: "documents\\sub folder"}
file1 := BlockRecordFile{Hash: hashData([]byte("Test data")), Type: TypeText, Format: FormatText, Size: 9, ID: uuid.New()}
file1.TagsDecoded = append(file1.TagsDecoded, FileTagName{Name: "Filename 1.txt"})
file1.TagsDecoded = append(file1.TagsDecoded, FileTagDirectory{Directory: "documents\\sub folder"})
newHeight, status := UserBlockchainAddFiles([]BlockRecordFile{file1})
@@ -174,13 +194,13 @@ func TestBlockchainRead(t *testing.T) {
blockNumber := uint64(0)
decoded, status := UserBlockchainRead(blockNumber)
decoded, status, err := UserBlockchainRead(blockNumber)
switch status {
case 0:
case 1: // Error block not found
fmt.Printf("Error reading block %d: Block not found.\n", blockNumber)
case 2: // Error block encoding
fmt.Printf("Error reading block %d: Block encoding corrupt.\n", blockNumber)
fmt.Printf("Error reading block %d: Block encoding corrupt: %s\n", blockNumber, err.Error())
case 3: // Error block record encoding
fmt.Printf("Error reading block %d: Block record encoding corrupt.\n", blockNumber)
default:
@@ -191,13 +211,22 @@ func TestBlockchainRead(t *testing.T) {
return
}
for _, file := range decoded.Files {
fmt.Printf("* File %s\n", file.Name)
fmt.Printf(" Directory %s\n", file.Directory)
fmt.Printf(" Size %d\n", file.Size)
fmt.Printf(" Type %d\n", file.Type)
fmt.Printf(" Format %d\n", file.Format)
fmt.Printf(" Hash %s\n", hex.EncodeToString(file.Hash))
fmt.Printf(" Directory ID %d\n\n", file.directoryID)
for _, decodedR := range decoded.RecordsDecoded {
if file, ok := decodedR.(BlockRecordFile); ok {
fmt.Printf("* File %s\n", file.ID.String())
fmt.Printf(" Size %d\n", file.Size)
fmt.Printf(" Type %d\n", file.Type)
fmt.Printf(" Format %d\n", file.Format)
fmt.Printf(" Hash %s\n", hex.EncodeToString(file.Hash))
for _, decodedT := range file.TagsDecoded {
switch v := decodedT.(type) {
case FileTagName:
fmt.Printf(" Name %s\n", v.Name)
case FileTagDirectory:
fmt.Printf(" Directory %s\n", v.Directory)
}
}
}
}
}