-
-
Notifications
You must be signed in to change notification settings - Fork 0
/
engine.go
342 lines (293 loc) · 9.16 KB
/
engine.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
package web
import (
"context"
"fmt"
stdLog "log"
"net/http"
"os"
"path"
"runtime"
"strconv"
"time"
"github.com/getfider/fider/app/models"
"github.com/getfider/fider/app/pkg/dbx"
"github.com/getfider/fider/app/pkg/env"
"github.com/getfider/fider/app/pkg/errors"
"github.com/getfider/fider/app/pkg/log"
"github.com/getfider/fider/app/pkg/log/database"
"github.com/getfider/fider/app/pkg/rand"
"github.com/getfider/fider/app/pkg/worker"
"github.com/julienschmidt/httprouter"
cache "github.com/patrickmn/go-cache"
)
var (
cspBase = "base-uri 'self'"
cspDefault = "default-src 'self'"
cspStyle = "style-src 'self' 'nonce-%[1]s' https://fonts.googleapis.com %[2]s"
cspScript = "script-src 'self' 'nonce-%[1]s' https://cdn.polyfill.io https://js.stripe.com https://www.google-analytics.com %[2]s"
cspFont = "font-src 'self' https://fonts.gstatic.com data: %[2]s"
cspImage = "img-src 'self' https: data: %[2]s"
cspObject = "object-src 'none'"
cspFrame = "frame-src 'self' https://js.stripe.com"
cspMedia = "media-src 'none'"
cspConnect = "connect-src 'self' https://www.google-analytics.com https://ipinfo.io https://js.stripe.com %[2]s"
//CspPolicyTemplate is the template used to generate the policy
CspPolicyTemplate = fmt.Sprintf("%s; %s; %s; %s; %s; %s; %s; %s; %s; %s", cspBase, cspDefault, cspStyle, cspScript, cspImage, cspFont, cspObject, cspMedia, cspConnect, cspFrame)
)
type notFoundHandler struct {
engine *Engine
handler HandlerFunc
}
func (h *notFoundHandler) ServeHTTP(res http.ResponseWriter, req *http.Request) {
ctx := h.engine.NewContext(res, req, nil)
h.handler(ctx)
}
//HandlerFunc represents an HTTP handler
type HandlerFunc func(Context) error
//MiddlewareFunc represents an HTTP middleware
type MiddlewareFunc func(HandlerFunc) HandlerFunc
//Engine is our web engine wrapper
type Engine struct {
mux *httprouter.Router
logger log.Logger
renderer *Renderer
db *dbx.Database
binder *DefaultBinder
middlewares []MiddlewareFunc
worker worker.Worker
server *http.Server
cache *cache.Cache
}
//New creates a new Engine
func New(settings *models.SystemSettings) *Engine {
db := dbx.New()
logger := database.NewLogger("WEB", db)
logger.SetProperty(log.PropertyKeyContextID, rand.String(32))
bgLogger := database.NewLogger("BGW", db)
bgLogger.SetProperty(log.PropertyKeyContextID, rand.String(32))
router := &Engine{
mux: httprouter.New(),
db: db,
logger: logger,
renderer: NewRenderer(settings, logger),
binder: NewDefaultBinder(),
middlewares: make([]MiddlewareFunc, 0),
worker: worker.New(db, bgLogger),
cache: cache.New(5*time.Minute, 10*time.Minute),
}
return router
}
//Start the server.
func (e *Engine) Start(address string) {
e.logger.Info("Application is starting")
e.logger.Infof("GO_ENV: @{Env}", log.Props{
"Env": env.Config.Environment,
})
var (
certFilePath = ""
keyFilePath = ""
)
if env.Config.SSLCert != "" {
certFilePath = env.Etc(env.Config.SSLCert)
keyFilePath = env.Etc(env.Config.SSLCertKey)
}
e.server = &http.Server{
ReadTimeout: 5 * time.Second,
WriteTimeout: 10 * time.Second,
IdleTimeout: 120 * time.Second,
Addr: address,
Handler: e.mux,
ErrorLog: stdLog.New(e.logger, "", 0),
TLSConfig: getDefaultTLSConfig(),
}
for i := 0; i < runtime.NumCPU()*2; i++ {
go e.Worker().Run(strconv.Itoa(i))
}
var (
err error
certManager *CertificateManager
)
if env.Config.AutoSSL {
certManager, err = NewCertificateManager(certFilePath, keyFilePath, e.db)
if err != nil {
panic(errors.Wrap(err, "failed to initialize CertificateManager"))
}
e.server.TLSConfig.GetCertificate = certManager.GetCertificate
e.logger.Infof("https (auto ssl) server started on @{Address}", log.Props{"Address": address})
go certManager.StartHTTPServer()
err = e.server.ListenAndServeTLS("", "")
} else if certFilePath == "" && keyFilePath == "" {
e.logger.Infof("http server started on @{Address}", log.Props{"Address": address})
err = e.server.ListenAndServe()
} else {
e.logger.Infof("https server started on @{Address}", log.Props{"Address": address})
err = e.server.ListenAndServeTLS(certFilePath, keyFilePath)
}
if err != nil && err != http.ErrServerClosed {
panic(errors.Wrap(err, "failed to start server"))
}
}
//Stop the server.
func (e *Engine) Stop() error {
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
e.logger.Info("server is shutting down")
if err := e.server.Shutdown(ctx); err != nil {
return errors.Wrap(err, "failed to shutdown server")
}
e.logger.Info("server has shutdown")
e.logger.Info("worker is shutting down")
if err := e.worker.Shutdown(ctx); err != nil {
return errors.Wrap(err, "failed to shutdown worker")
}
e.logger.Info("worker has shutdown")
return nil
}
//NewContext creates and return a new context
func (e *Engine) NewContext(res http.ResponseWriter, req *http.Request, params StringMap) Context {
contextID := rand.String(32)
request := WrapRequest(req)
ctxLogger := e.logger.New()
ctxLogger.SetProperty(log.PropertyKeyContextID, contextID)
ctxLogger.SetProperty("UserAgent", req.Header.Get("User-Agent"))
return Context{
id: contextID,
Response: res,
Request: request,
engine: e,
logger: ctxLogger,
params: params,
worker: e.worker,
}
}
//Logger returns current logger
func (e *Engine) Logger() log.Logger {
return e.logger
}
//Database returns current database
func (e *Engine) Database() *dbx.Database {
return e.db
}
//Cache returns current cache
func (e *Engine) Cache() *cache.Cache {
return e.cache
}
//Worker returns current worker reference
func (e *Engine) Worker() worker.Worker {
return e.worker
}
//Group creates a new route group
func (e *Engine) Group() *Group {
g := &Group{
engine: e,
middlewares: e.middlewares,
}
return g
}
//Use adds a middleware to the root engine
func (e *Engine) Use(middleware MiddlewareFunc) {
e.middlewares = append(e.middlewares, middleware)
}
//Get handles HTTP GET requests
func (e *Engine) Get(path string, handler HandlerFunc) {
e.mux.Handle("GET", path, e.handle(e.middlewares, handler))
}
//Post handles HTTP POST requests
func (e *Engine) Post(path string, handler HandlerFunc) {
e.mux.Handle("POST", path, e.handle(e.middlewares, handler))
}
//Put handles HTTP PUT requests
func (e *Engine) Put(path string, handler HandlerFunc) {
e.mux.Handle("PUT", path, e.handle(e.middlewares, handler))
}
//Delete handles HTTP DELETE requests
func (e *Engine) Delete(path string, handler HandlerFunc) {
e.mux.Handle("DELETE", path, e.handle(e.middlewares, handler))
}
//NotFound register how to handle routes that are not found
func (e *Engine) NotFound(handler HandlerFunc) {
e.mux.NotFound = ¬FoundHandler{
engine: e,
handler: handler,
}
}
func (e *Engine) handle(middlewares []MiddlewareFunc, handler HandlerFunc) httprouter.Handle {
next := handler
for i := len(middlewares) - 1; i >= 0; i-- {
next = middlewares[i](next)
}
var h = func(res http.ResponseWriter, req *http.Request, ps httprouter.Params) {
params := make(StringMap, 0)
for _, p := range ps {
params[p.Key] = p.Value
}
ctx := e.NewContext(res, req, params)
next(ctx)
}
return h
}
//Group is our router group wrapper
type Group struct {
engine *Engine
middlewares []MiddlewareFunc
}
//Group creates a new route group
func (g *Group) Group() *Group {
g2 := &Group{
engine: g.engine,
middlewares: g.middlewares,
}
return g2
}
//Use adds a middleware to current route stack
func (g *Group) Use(middleware MiddlewareFunc) {
g.middlewares = append(g.middlewares, middleware)
}
//Get handles HTTP GET requests
func (g *Group) Get(path string, handler HandlerFunc) {
g.engine.mux.Handle("GET", path, g.engine.handle(g.middlewares, handler))
}
//Post handles HTTP POST requests
func (g *Group) Post(path string, handler HandlerFunc) {
g.engine.mux.Handle("POST", path, g.engine.handle(g.middlewares, handler))
}
//Put handles HTTP PUT requests
func (g *Group) Put(path string, handler HandlerFunc) {
g.engine.mux.Handle("PUT", path, g.engine.handle(g.middlewares, handler))
}
//Delete handles HTTP DELETE requests
func (g *Group) Delete(path string, handler HandlerFunc) {
g.engine.mux.Handle("DELETE", path, g.engine.handle(g.middlewares, handler))
}
// Static return files from given folder
func (g *Group) Static(prefix, root string) {
fi, err := os.Stat(env.Path(root))
if err != nil {
panic(fmt.Sprintf("Path '%s' not found", root))
}
var h HandlerFunc
if fi.IsDir() {
h = func(c Context) error {
filePath := path.Join(root, c.Param("filepath"))
fi, err := os.Stat(filePath)
if err == nil && !fi.IsDir() {
http.ServeFile(c.Response, c.Request.instance, filePath)
return nil
}
return c.NotFound()
}
} else {
h = func(c Context) error {
http.ServeFile(c.Response, c.Request.instance, root)
return nil
}
}
g.engine.mux.Handle("GET", prefix, g.engine.handle(g.middlewares, h))
}
// ParseCookie return a list of cookie parsed from raw Set-Cookie
func ParseCookie(s string) *http.Cookie {
if s == "" {
return nil
}
return (&http.Response{Header: http.Header{"Set-Cookie": {s}}}).Cookies()[0]
}