]>
Commit | Line | Data |
---|---|---|
7a9e5112 | 1 | package api |
2 | ||
3 | import ( | |
4 | "net/http" | |
5 | "unicode" | |
6 | ||
7 | "github.com/gin-gonic/gin" | |
8 | ) | |
9 | ||
85545aba | 10 | var CONFIG Config |
2da5b12c | 11 | var MAIL_CONFIG MailConfig |
12 | ||
13 | type MailConfig struct { | |
14 | IsEnabled bool | |
15 | SmtpAddress string `toml:"smtp_address"` | |
16 | AddressFrom string `toml:"address_from"` | |
17 | Login string `toml:"login"` | |
18 | Password string `toml:"password"` | |
19 | } | |
85545aba | 20 | |
21 | type Config struct { | |
2da5b12c | 22 | Domain string `toml:"domain"` |
85545aba | 23 | JwtSecret string `toml:"jwt_secret"` |
24 | PasswordResetSecret string `toml:"password_reset_secret"` | |
25 | FreeSMSUser string `toml:"free_sms_user"` | |
26 | FreeSMSPass string `toml:"free_sms_pass"` | |
27 | } | |
28 | ||
29 | func SetConfig(config Config) { | |
30 | CONFIG = config | |
31 | ||
32 | JWT_SECRET = []byte(config.JwtSecret) | |
33 | PASSWORD_RESET_SECRET = []byte(config.PasswordResetSecret) | |
34 | } | |
35 | ||
2da5b12c | 36 | func SetMailConfig(config MailConfig) { |
37 | MAIL_CONFIG = config | |
38 | ||
39 | if config.Login != "" && config.AddressFrom != "" && config.Password != "" && config.SmtpAddress != "" { | |
40 | MAIL_CONFIG.IsEnabled = true | |
41 | ConfigureMailTemplateEngine() | |
42 | } | |
43 | } | |
44 | ||
7a9e5112 | 45 | type Error struct { |
46 | Code ErrorCode | |
47 | UserMessage string | |
48 | err error | |
49 | } | |
50 | ||
51 | func (e Error) Err() error { | |
52 | if e.err != nil { | |
53 | return e | |
54 | } | |
55 | ||
56 | return nil | |
57 | } | |
58 | ||
59 | func (e Error) Error() string { | |
60 | if e.err != nil { | |
61 | return e.err.Error() | |
62 | } | |
63 | ||
64 | return "" | |
65 | } | |
66 | ||
24e47979 | 67 | func ErrorIs(err error, code ErrorCode) bool { |
68 | if err == nil { | |
69 | return false | |
70 | } | |
71 | ||
72 | if apiError, ok := err.(*Error); !ok { | |
73 | return false | |
74 | } else { | |
75 | return apiError.Code == code | |
76 | } | |
77 | } | |
78 | ||
7a9e5112 | 79 | func NewInternalError(err error) *Error { |
299b6b6d | 80 | if apiError, ok := err.(*Error); ok { |
81 | return apiError | |
82 | } | |
7a9e5112 | 83 | return &Error{InternalError, "internal error", err} |
84 | } | |
85 | ||
86 | func ToSnake(in string) string { | |
87 | runes := []rune(in) | |
88 | length := len(runes) | |
89 | ||
90 | var out []rune | |
91 | for i := 0; i < length; i++ { | |
92 | if i > 0 && unicode.IsUpper(runes[i]) && ((i+1 < length && unicode.IsLower(runes[i+1])) || unicode.IsLower(runes[i-1])) { | |
93 | out = append(out, '_') | |
94 | } | |
95 | out = append(out, unicode.ToLower(runes[i])) | |
96 | } | |
97 | ||
98 | return string(out) | |
99 | } | |
100 | ||
101 | type Response struct { | |
102 | StatusCode Status `json:"-"` | |
103 | ErrorCode ErrorCode `json:"-"` | |
104 | ||
105 | Status string `json:"status"` | |
106 | Code string `json:"code,omitempty"` | |
107 | Response interface{} `json:"response,omitempty"` | |
108 | Message string `json:"message,omitempty"` | |
109 | } | |
110 | ||
111 | func (r Response) populateStatus() Response { | |
112 | r.Status = ToSnake(r.StatusCode.String()) | |
113 | ||
114 | if r.ErrorCode != 0 { | |
115 | r.Code = ToSnake(r.ErrorCode.String()) | |
116 | } | |
117 | ||
118 | return r | |
119 | } | |
120 | ||
121 | func ErrorResponse(code ErrorCode, message string) Response { | |
122 | return Response{ | |
123 | StatusCode: NOK, | |
124 | ErrorCode: code, | |
125 | Message: message, | |
126 | } | |
127 | } | |
128 | ||
129 | func SuccessResponse(data interface{}) Response { | |
130 | return Response{ | |
131 | StatusCode: OK, | |
132 | Response: data, | |
133 | } | |
134 | } | |
135 | ||
136 | func WriteJsonResponse(response Response, c *gin.Context) { | |
137 | response = response.populateStatus() | |
138 | ||
139 | c.JSON(StatusToHttpCode(response.StatusCode, response.ErrorCode), response) | |
140 | } | |
141 | ||
142 | func WriteBinary(contentType string, b []byte, c *gin.Context) { | |
143 | c.Data(http.StatusOK, contentType, b) | |
144 | } | |
145 | ||
146 | type Middleware func(*gin.Context) *Error | |
147 | ||
148 | func M(handler Middleware) gin.HandlerFunc { | |
149 | return func(c *gin.Context) { | |
150 | err := handler(c) | |
151 | ||
152 | if err != nil { | |
153 | WriteJsonResponse(ErrorResponse(err.Code, err.UserMessage), c) | |
154 | c.Error(err) | |
155 | c.Abort() | |
156 | } else { | |
157 | c.Next() | |
158 | } | |
159 | } | |
160 | } | |
161 | ||
162 | type Query interface { | |
163 | ValidateParams() *Error | |
164 | Run() (interface{}, *Error) | |
165 | } | |
166 | ||
167 | func RunQuery(query Query, c *gin.Context) { | |
168 | if err := query.ValidateParams(); err != nil { | |
169 | WriteJsonResponse(ErrorResponse(err.Code, err.UserMessage), c) | |
170 | c.Error(err) | |
171 | return | |
172 | } | |
173 | ||
174 | if out, err := query.Run(); err != nil { | |
175 | WriteJsonResponse(ErrorResponse(err.Code, err.UserMessage), c) | |
176 | c.Error(err) | |
177 | } else { | |
178 | WriteJsonResponse(SuccessResponse(out), c) | |
179 | } | |
180 | } |