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Port title database and cdecrypt to Go (#87)

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* Experimental removal of cdecrypt

* Pushing before cdecrypt port

* Some progress...

* Replace title database with native Go

* Update title db url

* Almost working decryption and extraction

* Almost there

* Remove unnecessary type conversion

* Fix directory structure creation

* Finally fix decryption

* Cleanup print statements

* Do not write FST to file

* Add progress

* Add encrypted contents decryption
This commit is contained in:
Xpl0itU 2024-03-31 19:38:13 +02:00 • committed by GitHub
parent b031be4ecd
commit e40d499b72
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GPG key ID: B5690EEEBB952194
19 changed files with 589 additions and 2897 deletions
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16
downloader.go
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@ -249,18 +249,17 @@ func DownloadTitle(cancelCtx context.Context, titleID, outputDirectory string, d
return fmt.Errorf("failed to create AES cipher: %w", err)
}
var id uint32
var content contentInfo
var content Content
tmdDataReader := bytes.NewReader(tmdData)
for i := 0; i < int(contentCount); i++ {
offset := 2820 + (48 * i)
tmdDataReader.Seek(int64(offset), 0)
if err := binary.Read(tmdDataReader, binary.BigEndian, &id); err != nil {
if err := binary.Read(tmdDataReader, binary.BigEndian, &content.ID); err != nil {
return err
}
filePath := filepath.Join(outputDir, fmt.Sprintf("%08X.app", id))
if err := downloadFile(cancelCtx, progressReporter, client, fmt.Sprintf("%s/%08X", baseURL, id), filePath, true, buffer); err != nil {
filePath := filepath.Join(outputDir, fmt.Sprintf("%08X.app", content.ID))
if err := downloadFile(cancelCtx, progressReporter, client, fmt.Sprintf("%s/%08X", baseURL, content.ID), filePath, true, buffer); err != nil {
if progressReporter.Cancelled() {
break
}
@ -269,16 +268,15 @@ func DownloadTitle(cancelCtx context.Context, titleID, outputDirectory string, d
progressReporter.AddToTotalDownloaded(int64(contentSizes[i]))
if tmdData[offset+7]&0x2 == 2 {
filePath = filepath.Join(outputDir, fmt.Sprintf("%08X.h3", id))
if err := downloadFile(cancelCtx, progressReporter, client, fmt.Sprintf("%s/%08X.h3", baseURL, id), filePath, true, buffer); err != nil {
filePath = filepath.Join(outputDir, fmt.Sprintf("%08X.h3", content.ID))
if err := downloadFile(cancelCtx, progressReporter, client, fmt.Sprintf("%s/%08X.h3", baseURL, content.ID), filePath, true, buffer); err != nil {
if progressReporter.Cancelled() {
break
}
return err
}
content.Hash = tmdData[offset+16 : offset+0x14]
content.ID = fmt.Sprintf("%08X", id)
content.Size = int64(contentSizes[i])
content.Size = contentSizes[i]
if err := checkContentHashes(outputDirectory, content, cipherHashTree); err != nil {
if progressReporter.Cancelled() {
break