-
Notifications
You must be signed in to change notification settings - Fork 0
/
proxies.go
129 lines (109 loc) · 3.19 KB
/
proxies.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
package route
import (
"context"
"fmt"
"net/http"
"strconv"
"time"
"github.com/siding9241/clash/adapter"
"github.com/siding9241/clash/adapter/outboundgroup"
"github.com/siding9241/clash/component/profile/cachefile"
C "github.com/siding9241/clash/constant"
"github.com/siding9241/clash/tunnel"
"github.com/go-chi/chi/v5"
"github.com/go-chi/render"
)
func proxyRouter() http.Handler {
r := chi.NewRouter()
r.Get("/", getProxies)
r.Route("/{name}", func(r chi.Router) {
r.Use(parseProxyName, findProxyByName)
r.Get("/", getProxy)
r.Get("/delay", getProxyDelay)
r.Put("/", updateProxy)
})
return r
}
func parseProxyName(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
name := getEscapeParam(r, "name")
ctx := context.WithValue(r.Context(), CtxKeyProxyName, name)
next.ServeHTTP(w, r.WithContext(ctx))
})
}
func findProxyByName(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
name := r.Context().Value(CtxKeyProxyName).(string)
proxies := tunnel.Proxies()
proxy, exist := proxies[name]
if !exist {
render.Status(r, http.StatusNotFound)
render.JSON(w, r, ErrNotFound)
return
}
ctx := context.WithValue(r.Context(), CtxKeyProxy, proxy)
next.ServeHTTP(w, r.WithContext(ctx))
})
}
func getProxies(w http.ResponseWriter, r *http.Request) {
proxies := tunnel.Proxies()
render.JSON(w, r, render.M{
"proxies": proxies,
})
}
func getProxy(w http.ResponseWriter, r *http.Request) {
proxy := r.Context().Value(CtxKeyProxy).(C.Proxy)
render.JSON(w, r, proxy)
}
func updateProxy(w http.ResponseWriter, r *http.Request) {
req := struct {
Name string `json:"name"`
}{}
if err := render.DecodeJSON(r.Body, &req); err != nil {
render.Status(r, http.StatusBadRequest)
render.JSON(w, r, ErrBadRequest)
return
}
proxy := r.Context().Value(CtxKeyProxy).(*adapter.Proxy)
selector, ok := proxy.ProxyAdapter.(*outboundgroup.Selector)
if !ok {
render.Status(r, http.StatusBadRequest)
render.JSON(w, r, newError("Must be a Selector"))
return
}
if err := selector.Set(req.Name); err != nil {
render.Status(r, http.StatusBadRequest)
render.JSON(w, r, newError(fmt.Sprintf("Selector update error: %s", err.Error())))
return
}
cachefile.Cache().SetSelected(proxy.Name(), req.Name)
render.NoContent(w, r)
}
func getProxyDelay(w http.ResponseWriter, r *http.Request) {
query := r.URL.Query()
url := query.Get("url")
timeout, err := strconv.ParseInt(query.Get("timeout"), 10, 16)
if err != nil {
render.Status(r, http.StatusBadRequest)
render.JSON(w, r, ErrBadRequest)
return
}
proxy := r.Context().Value(CtxKeyProxy).(C.Proxy)
ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*time.Duration(timeout))
defer cancel()
delay, meanDelay, err := proxy.URLTest(ctx, url)
if ctx.Err() != nil {
render.Status(r, http.StatusGatewayTimeout)
render.JSON(w, r, ErrRequestTimeout)
return
}
if err != nil || delay == 0 {
render.Status(r, http.StatusServiceUnavailable)
render.JSON(w, r, newError("An error occurred in the delay test"))
return
}
render.JSON(w, r, render.M{
"delay": delay,
"meanDelay": meanDelay,
})
}