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Automatically delete files from Warehouse in case there are no other references when deleting files from the blockchain via /blockchain/self/delete/file.

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New function blockchain.FileExists.
blockchain.DeleteFiles now returns list of deleted files.
This commit is contained in:
Kleissner
2021-10-13 06:00:40 +02:00
parent 335f83d79b
commit c2f110169a
5 changed files with 43 additions and 7 deletions
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12
webapi/File.go
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@@ -184,6 +184,7 @@ func apiBlockchainSelfListFile(w http.ResponseWriter, r *http.Request) {
/*
apiBlockchainSelfDeleteFile deletes files with the provided IDs. Other fields are ignored.
It will automatically delete the file in the Warehouse if there are no other references.
Request: POST /blockchain/self/delete/file with JSON structure apiBlockAddFiles
Response: 200 with JSON structure apiBlockchainBlockStatus
@@ -200,7 +201,16 @@ func apiBlockchainSelfDeleteFile(w http.ResponseWriter, r *http.Request) {
deleteIDs = append(deleteIDs, input.Files[n].ID)
}
newHeight, newVersion, status := core.UserBlockchain.DeleteFiles(deleteIDs)
newHeight, newVersion, deletedFiles, status := core.UserBlockchain.DeleteFiles(deleteIDs)
// If successfully deleted from the blockchain, delete from the Warehouse in case there are no other references.
if status == blockchain.BlockchainStatusOK {
for n := range deletedFiles {
if files, status := core.UserBlockchain.FileExists(deletedFiles[n].Hash); status == blockchain.BlockchainStatusOK && len(files) == 0 {
core.UserWarehouse.DeleteFile(deletedFiles[n].Hash)
}
}
}
EncodeJSON(w, r, apiBlockchainBlockStatus{Status: status, Height: newHeight, Version: newVersion})
}