-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.go
71 lines (64 loc) · 1.95 KB
/
main.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
// Copyright (C) 2023 Shanhu Tech Inc.
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU Affero General Public License as published by the
// Free Software Foundation, either version 3 of the License, or (at your
// option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License
// for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package aries
import (
"flag"
"fmt"
"hash/fnv"
"io"
"log"
"net"
"net/http"
"os"
"strings"
"shanhu.io/g/unixhttp"
)
// ListenAndServe serves on the address. If the address ends
// with .sock, it ListenAndServe's on the unix domain socket.
func ListenAndServe(addr string, s Service) error {
log.Printf("serve on %q", addr)
if strings.HasSuffix(addr, ".sock") {
return unixhttp.ListenAndServe(addr, Serve(s))
}
return http.ListenAndServe(addr, Serve(s))
}
// Listen listens on the address. If the address ends with
// .sock, it Listen's on the unix domain socket.
func Listen(addr string) (net.Listener, error) {
if strings.HasSuffix(addr, ".sock") {
return unixhttp.Listen(addr)
}
return net.Listen("tcp", addr)
}
// DefaultAddr gets the default address for an application
func DefaultAddr(app string) string {
if addr := os.Getenv("ADDR"); addr != "" {
return addr
}
if port := os.Getenv("PORT"); port != "" {
return ":" + port
}
h := fnv.New32()
io.WriteString(h, app)
const offset = 8000
return fmt.Sprintf("localhost:%d", offset+h.Sum32()%10000)
}
// DeclareAddrFlag declares the -addr flag.
func DeclareAddrFlag(def string) *string {
if def == "" {
def = DefaultAddr(os.Args[0])
}
return flag.String("addr", def, "address to listen on")
}