mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-22 16:41:30 +00:00
81 lines
2.2 KiB
Go
81 lines
2.2 KiB
Go
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package badjsonmerge
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import (
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"encoding/json"
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"reflect"
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"github.com/sagernet/sing-box/common/badjson"
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"github.com/sagernet/sing-box/option"
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E "github.com/sagernet/sing/common/exceptions"
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)
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func MergeOptions(source option.Options, destination option.Options) (option.Options, error) {
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rawSource, err := json.Marshal(source)
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if err != nil {
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return option.Options{}, E.Cause(err, "marshal source")
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}
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rawDestination, err := json.Marshal(destination)
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if err != nil {
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return option.Options{}, E.Cause(err, "marshal destination")
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}
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rawMerged, err := MergeJSON(rawSource, rawDestination)
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if err != nil {
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return option.Options{}, E.Cause(err, "merge options")
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}
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var merged option.Options
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err = json.Unmarshal(rawMerged, &merged)
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if err != nil {
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return option.Options{}, E.Cause(err, "unmarshal merged options")
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}
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return merged, nil
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}
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func MergeJSON(rawSource json.RawMessage, rawDestination json.RawMessage) (json.RawMessage, error) {
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source, err := badjson.Decode(rawSource)
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if err != nil {
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return nil, E.Cause(err, "decode source")
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}
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destination, err := badjson.Decode(rawDestination)
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if err != nil {
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return nil, E.Cause(err, "decode destination")
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}
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merged, err := mergeJSON(source, destination)
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if err != nil {
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return nil, err
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}
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return json.Marshal(merged)
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}
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func mergeJSON(anySource any, anyDestination any) (any, error) {
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switch destination := anyDestination.(type) {
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case badjson.JSONArray:
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switch source := anySource.(type) {
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case badjson.JSONArray:
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destination = append(destination, source...)
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default:
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destination = append(destination, source)
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}
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return destination, nil
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case *badjson.JSONObject:
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switch source := anySource.(type) {
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case *badjson.JSONObject:
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for _, entry := range source.Entries() {
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oldValue, loaded := destination.Get(entry.Key)
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if loaded {
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var err error
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entry.Value, err = mergeJSON(entry.Value, oldValue)
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if err != nil {
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return nil, E.Cause(err, "merge object item ", entry.Key)
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}
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}
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destination.Put(entry.Key, entry.Value)
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}
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default:
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return nil, E.New("cannot merge json object into ", reflect.TypeOf(destination))
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}
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return destination, nil
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default:
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return destination, nil
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}
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}
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