|
| 1 | +// Copyright 2022 The Gitea Authors. All rights reserved. |
| 2 | +// Use of this source code is governed by a MIT-style |
| 3 | +// license that can be found in the LICENSE file. |
| 4 | + |
| 5 | +package migration |
| 6 | + |
| 7 | +import ( |
| 8 | + "fmt" |
| 9 | + "os" |
| 10 | + "strings" |
| 11 | + |
| 12 | + "code.gitea.io/gitea/modules/json" |
| 13 | + "code.gitea.io/gitea/modules/log" |
| 14 | + |
| 15 | + "github.com/santhosh-tekuri/jsonschema/v5" |
| 16 | + "gopkg.in/yaml.v2" |
| 17 | +) |
| 18 | + |
| 19 | +// Load project data from file, with optional validation |
| 20 | +func Load(filename string, data interface{}, validation bool) error { |
| 21 | + isJSON := strings.HasSuffix(filename, ".json") |
| 22 | + |
| 23 | + bs, err := os.ReadFile(filename) |
| 24 | + if err != nil { |
| 25 | + return err |
| 26 | + } |
| 27 | + |
| 28 | + if validation { |
| 29 | + err := validate(bs, data, isJSON) |
| 30 | + if err != nil { |
| 31 | + return err |
| 32 | + } |
| 33 | + } |
| 34 | + return unmarshal(bs, data, isJSON) |
| 35 | +} |
| 36 | + |
| 37 | +func unmarshal(bs []byte, data interface{}, isJSON bool) error { |
| 38 | + if isJSON { |
| 39 | + return json.Unmarshal(bs, data) |
| 40 | + } |
| 41 | + return yaml.Unmarshal(bs, data) |
| 42 | +} |
| 43 | + |
| 44 | +func getSchema(filename string) (*jsonschema.Schema, error) { |
| 45 | + c := jsonschema.NewCompiler() |
| 46 | + c.LoadURL = openSchema |
| 47 | + return c.Compile(filename) |
| 48 | +} |
| 49 | + |
| 50 | +func validate(bs []byte, datatype interface{}, isJSON bool) error { |
| 51 | + var v interface{} |
| 52 | + err := unmarshal(bs, &v, isJSON) |
| 53 | + if err != nil { |
| 54 | + return err |
| 55 | + } |
| 56 | + if !isJSON { |
| 57 | + v, err = toStringKeys(v) |
| 58 | + if err != nil { |
| 59 | + return err |
| 60 | + } |
| 61 | + } |
| 62 | + |
| 63 | + var schemaFilename string |
| 64 | + switch datatype := datatype.(type) { |
| 65 | + case *[]*Issue: |
| 66 | + schemaFilename = "issue.json" |
| 67 | + case *[]*Milestone: |
| 68 | + schemaFilename = "milestone.json" |
| 69 | + default: |
| 70 | + return fmt.Errorf("file_format:validate: %T has not a validation implemented", datatype) |
| 71 | + } |
| 72 | + |
| 73 | + sch, err := getSchema(schemaFilename) |
| 74 | + if err != nil { |
| 75 | + return err |
| 76 | + } |
| 77 | + err = sch.Validate(v) |
| 78 | + if err != nil { |
| 79 | + log.Error("migration validation with %s failed for\n%s", schemaFilename, string(bs)) |
| 80 | + } |
| 81 | + return err |
| 82 | +} |
| 83 | + |
| 84 | +func toStringKeys(val interface{}) (interface{}, error) { |
| 85 | + var err error |
| 86 | + switch val := val.(type) { |
| 87 | + case map[interface{}]interface{}: |
| 88 | + m := make(map[string]interface{}) |
| 89 | + for k, v := range val { |
| 90 | + k, ok := k.(string) |
| 91 | + if !ok { |
| 92 | + return nil, fmt.Errorf("found non-string key %T %s", k, k) |
| 93 | + } |
| 94 | + m[k], err = toStringKeys(v) |
| 95 | + if err != nil { |
| 96 | + return nil, err |
| 97 | + } |
| 98 | + } |
| 99 | + return m, nil |
| 100 | + case []interface{}: |
| 101 | + l := make([]interface{}, len(val)) |
| 102 | + for i, v := range val { |
| 103 | + l[i], err = toStringKeys(v) |
| 104 | + if err != nil { |
| 105 | + return nil, err |
| 106 | + } |
| 107 | + } |
| 108 | + return l, nil |
| 109 | + default: |
| 110 | + return val, nil |
| 111 | + } |
| 112 | +} |
0 commit comments