Files
gluetun/internal/cli/genkey.go
Quentin McGaw 67ae5f5065 feat(server): role based authentication system (#2434)
- Parse toml configuration file, see https://github.com/qdm12/gluetun-wiki/blob/main/setup/advanced/control-server.md#authentication
- Retro-compatible with existing AND documented routes, until after v3.41 release
- Log a warning if an unprotected-by-default route is accessed unprotected
- Authentication methods: none, apikey, basic
- `genkey` command to generate API keys
- move log middleware to internal/server/middlewares/log

Co-authored-by: Joe Jose <45399349+joejose97@users.noreply.github.com>
2024-09-29 17:53:17 +00:00

67 lines
1.4 KiB
Go

package cli
import (
"crypto/rand"
"flag"
"fmt"
)
func (c *CLI) GenKey(args []string) (err error) {
flagSet := flag.NewFlagSet("genkey", flag.ExitOnError)
err = flagSet.Parse(args)
if err != nil {
return fmt.Errorf("parsing flags: %w", err)
}
const keyLength = 128 / 8
keyBytes := make([]byte, keyLength)
_, _ = rand.Read(keyBytes)
key := base58Encode(keyBytes)
fmt.Println(key)
return nil
}
func base58Encode(data []byte) string {
const alphabet = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
const radix = 58
zcount := 0
for zcount < len(data) && data[zcount] == 0 {
zcount++
}
// integer simplification of ceil(log(256)/log(58))
ceilLog256Div58 := (len(data)-zcount)*555/406 + 1 //nolint:gomnd
size := zcount + ceilLog256Div58
output := make([]byte, size)
high := size - 1
for _, b := range data {
i := size - 1
for carry := uint32(b); i > high || carry != 0; i-- {
carry += 256 * uint32(output[i]) //nolint:gomnd
output[i] = byte(carry % radix)
carry /= radix
}
high = i
}
// Determine the additional "zero-gap" in the output buffer
additionalZeroGapEnd := zcount
for additionalZeroGapEnd < size && output[additionalZeroGapEnd] == 0 {
additionalZeroGapEnd++
}
val := output[additionalZeroGapEnd-zcount:]
size = len(val)
for i := range val {
output[i] = alphabet[val[i]]
}
return string(output[:size])
}