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Add backend RPC for checksum calculation

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This commit is contained in:
Randall Winkhart 2025-02-23 21:12:29 -05:00
parent 23e9e6853f
commit dd673b0333
1 changed files with 28 additions and 0 deletions
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28
gossa.go
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@ -3,11 +3,17 @@ package main
import ( import (
"archive/zip" "archive/zip"
"compress/gzip" "compress/gzip"
"crypto/md5"
"crypto/sha1"
"crypto/sha256"
"crypto/sha512"
_ "embed" _ "embed"
"encoding/hex"
"encoding/json" "encoding/json"
"errors" "errors"
"flag" "flag"
"fmt" "fmt"
"hash"
"html" "html"
"html/template" "html/template"
"io" "io"
@ -238,6 +244,28 @@ func rpc(w http.ResponseWriter, r *http.Request) {
err = os.Rename(enforcePath(rpc.Args[0]), enforcePath(rpc.Args[1])) err = os.Rename(enforcePath(rpc.Args[0]), enforcePath(rpc.Args[1]))
case "rm": case "rm":
err = os.RemoveAll(enforcePath(rpc.Args[0])) err = os.RemoveAll(enforcePath(rpc.Args[0]))
case "sum":
var file *os.File
enforcedPath := enforcePath(rpc.Args[0])
file, err = os.Open(enforcedPath)
var hash hash.Hash
switch rpc.Args[1] {
case "md5":
hash = md5.New()
case "sha1":
hash = sha1.New()
case "sha256":
hash = sha256.New()
case "sha512":
hash = sha512.New()
}
_, err = io.Copy(hash, file)
check(err)
checksum := hash.Sum(nil)
checksumHex := make([]byte, hex.EncodedLen(len(checksum)))
hex.Encode(checksumHex, checksum)
w.Write(checksumHex)
return
} }
check(err) check(err)