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
|
package webui
import (
"embed"
"log"
"net/http"
"git.adyxax.org/adyxax/trains/pkg/config"
"git.adyxax.org/adyxax/trains/pkg/database"
"git.adyxax.org/adyxax/trains/pkg/navitia_api_client"
)
//go:embed html/*
var templatesFS embed.FS
//go:embed static/*
var staticFS embed.FS
// the environment that will be passed to our handlers
type env struct {
conf *config.Config
dbEnv *database.DBEnv
navitia navitia_api_client.Client
}
type handlerError interface {
error
Status() int
}
type statusError struct {
code int
err error
}
func (e *statusError) Error() string { return e.err.Error() }
func (e *statusError) Status() int { return e.code }
func newStatusError(code int, err error) error { return &statusError{code: code, err: err} }
type handler struct {
e *env
h func(e *env, w http.ResponseWriter, r *http.Request) error
}
// ServeHTTP allows our handler type to satisfy http.Handler
func (h handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
path := r.URL.Path
err := h.h(h.e, w, r)
if err != nil {
switch e := err.(type) {
case handlerError:
log.Printf("HTTP %d - %s", e.Status(), e)
http.Error(w, e.Error(), e.Status())
default:
// Any error types we don't specifically look out for default to serving a HTTP 500
log.Printf("%s : handler returned an unexpected error : %+v", path, e)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
}
}
}
|