1// Copyright 2023 Google LLC
 2//
 3// Licensed under the Apache License, Version 2.0 (the "License");
 4// you may not use this file except in compliance with the License.
 5// You may obtain a copy of the License at
 6//
 7//      http://www.apache.org/licenses/LICENSE-2.0
 8//
 9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package credsfile
16
17import (
18	"encoding/json"
19)
20
21// ParseServiceAccount parses bytes into a [ServiceAccountFile].
22func ParseServiceAccount(b []byte) (*ServiceAccountFile, error) {
23	var f *ServiceAccountFile
24	if err := json.Unmarshal(b, &f); err != nil {
25		return nil, err
26	}
27	return f, nil
28}
29
30// ParseClientCredentials parses bytes into a
31// [credsfile.ClientCredentialsFile].
32func ParseClientCredentials(b []byte) (*ClientCredentialsFile, error) {
33	var f *ClientCredentialsFile
34	if err := json.Unmarshal(b, &f); err != nil {
35		return nil, err
36	}
37	return f, nil
38}
39
40// ParseUserCredentials parses bytes into a [UserCredentialsFile].
41func ParseUserCredentials(b []byte) (*UserCredentialsFile, error) {
42	var f *UserCredentialsFile
43	if err := json.Unmarshal(b, &f); err != nil {
44		return nil, err
45	}
46	return f, nil
47}
48
49// ParseExternalAccount parses bytes into a [ExternalAccountFile].
50func ParseExternalAccount(b []byte) (*ExternalAccountFile, error) {
51	var f *ExternalAccountFile
52	if err := json.Unmarshal(b, &f); err != nil {
53		return nil, err
54	}
55	return f, nil
56}
57
58// ParseExternalAccountAuthorizedUser parses bytes into a
59// [ExternalAccountAuthorizedUserFile].
60func ParseExternalAccountAuthorizedUser(b []byte) (*ExternalAccountAuthorizedUserFile, error) {
61	var f *ExternalAccountAuthorizedUserFile
62	if err := json.Unmarshal(b, &f); err != nil {
63		return nil, err
64	}
65	return f, nil
66}
67
68// ParseImpersonatedServiceAccount parses bytes into a
69// [ImpersonatedServiceAccountFile].
70func ParseImpersonatedServiceAccount(b []byte) (*ImpersonatedServiceAccountFile, error) {
71	var f *ImpersonatedServiceAccountFile
72	if err := json.Unmarshal(b, &f); err != nil {
73		return nil, err
74	}
75	return f, nil
76}
77
78// ParseGDCHServiceAccount parses bytes into a [GDCHServiceAccountFile].
79func ParseGDCHServiceAccount(b []byte) (*GDCHServiceAccountFile, error) {
80	var f *GDCHServiceAccountFile
81	if err := json.Unmarshal(b, &f); err != nil {
82		return nil, err
83	}
84	return f, nil
85}
86
87type fileTypeChecker struct {
88	Type string `json:"type"`
89}
90
91// ParseFileType determines the [CredentialType] based on bytes provided.
92func ParseFileType(b []byte) (CredentialType, error) {
93	var f fileTypeChecker
94	if err := json.Unmarshal(b, &f); err != nil {
95		return 0, err
96	}
97	return parseCredentialType(f.Type), nil
98}