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forgejo/models/helper.go
zeripath b5856c4437
Create doctor command to fix repo_units broken by dumps from 1.14.3-1.14.6 (#17136)
There was a serious issue with the `gitea dump` command in 1.14.3-1.14.6 which led to corruption of the `config` field of the `repo_unit` table. 

This PR adds a doctor command to attempt to fix the broken repo_units. Users affected by #16961 should run:

```
gitea doctor --fix --run fix-broken-repo-units
```

Fix #16961

Signed-off-by: Andrew Thornton <art27@cantab.net>
2021-09-27 16:55:12 +01:00

64 lines
1.5 KiB
Go

// Copyright 2017 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package models
import (
"encoding/binary"
"code.gitea.io/gitea/modules/json"
)
func keysInt64(m map[int64]struct{}) []int64 {
keys := make([]int64, 0, len(m))
for k := range m {
keys = append(keys, k)
}
return keys
}
func valuesRepository(m map[int64]*Repository) []*Repository {
values := make([]*Repository, 0, len(m))
for _, v := range m {
values = append(values, v)
}
return values
}
func valuesUser(m map[int64]*User) []*User {
values := make([]*User, 0, len(m))
for _, v := range m {
values = append(values, v)
}
return values
}
// JSONUnmarshalHandleDoubleEncode - due to a bug in xorm (see https://gitea.com/xorm/xorm/pulls/1957) - it's
// possible that a Blob may be double encoded or gain an unwanted prefix of 0xff 0xfe.
func JSONUnmarshalHandleDoubleEncode(bs []byte, v interface{}) error {
err := json.Unmarshal(bs, v)
if err != nil {
ok := true
rs := []byte{}
temp := make([]byte, 2)
for _, rn := range string(bs) {
if rn > 0xffff {
ok = false
break
}
binary.LittleEndian.PutUint16(temp, uint16(rn))
rs = append(rs, temp...)
}
if ok {
if len(rs) > 1 && rs[0] == 0xff && rs[1] == 0xfe {
rs = rs[2:]
}
err = json.Unmarshal(rs, v)
}
}
if err != nil && len(bs) > 2 && bs[0] == 0xff && bs[1] == 0xfe {
err = json.Unmarshal(bs[2:], v)
}
return err
}