forked from wowsims/wotlk
/
decode_link.go
67 lines (56 loc) · 1.57 KB
/
decode_link.go
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package cmd
import (
"bytes"
"compress/zlib"
"encoding/base64"
"errors"
"fmt"
"strings"
goproto "github.com/golang/protobuf/proto"
"github.com/spf13/cobra"
"github.com/Tereneckla/wotlk/sim/core/proto"
"google.golang.org/protobuf/encoding/protojson"
)
var decodeLinkCmd = &cobra.Command{
Use: "decodelink [link]",
Short: "decode wowsims link/url",
Long: "decode wowsims link/url",
Args: cobra.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
return decodeLink(args[0])
},
}
var errInvalidLink = errors.New("invalid wowsims export link")
func decodeLink(link string) error {
parts := strings.Split(link, "#")
switch {
case len(parts) != 2:
return errInvalidLink
case parts[1] == "":
return errInvalidLink
}
raw, err := base64.StdEncoding.DecodeString(parts[1])
if err != nil {
return fmt.Errorf("cannot decode proto from link: %w", err)
}
r, err := zlib.NewReader(bytes.NewReader(raw))
if err != nil {
return fmt.Errorf("cannot create zlib reader: %w", err)
}
defer r.Close()
var buf bytes.Buffer
if _, err := buf.ReadFrom(r); err != nil {
return fmt.Errorf("reading zlib data failed: %w", err)
}
var settings goproto.Message
if strings.Contains(link, "/raid/") {
settings = &proto.RaidSimSettings{}
} else {
settings = &proto.IndividualSimSettings{}
}
if err := goproto.Unmarshal(buf.Bytes(), settings); err != nil {
return fmt.Errorf("cannot unmarshal raw proto: %w", err)
}
fmt.Println(protojson.Format(goproto.MessageV2(settings)))
return nil
}