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
|
/*
* Main listener
*
* Copyright (C) 2024 Runxi Yu <https://runxiyu.org>
* SPDX-License-Identifier: AGPL-3.0-or-later
*
* 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 main
import (
"crypto/tls"
"embed"
"flag"
"html/template"
"io/fs"
"log"
"net"
"net/http"
"time"
)
var tmpl *template.Template
//go:embed build/static/* tmpl/* build/iadocs/*.pdf build/iadocs/*.htm build/docs/*
var runFS embed.FS
//go:embed go.* *.go docs/* frontend/* README.md LICENSE Makefile iadocs/* sql/* tmpl/* scripts/*
var srcFS embed.FS
func main() {
var err error
var configPath string
flag.StringVar(&configPath, "config", "cca.scfg", "path to configuration file")
flag.Parse()
if err := fetchConfig(configPath); err != nil {
log.Fatal(err)
}
log.Println("Setting up templates")
tmpl, err = template.ParseFS(runFS, "tmpl/*")
if err != nil {
log.Fatal(err)
}
log.Println("Registering static handle")
staticFS, err := fs.Sub(runFS, "build/static")
if err != nil {
log.Fatal(err)
}
http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.FS(staticFS))))
log.Println("Registering iadocs handle")
iaDocsFS, err := fs.Sub(runFS, "build/iadocs")
if err != nil {
log.Fatal(err)
}
http.Handle("/iadocs/", http.StripPrefix("/iadocs/", http.FileServer(http.FS(iaDocsFS))))
log.Println("Registering docs handle")
docsFS, err := fs.Sub(runFS, "build/docs")
if err != nil {
log.Fatal(err)
}
http.Handle("/docs/", http.StripPrefix("/docs/", http.FileServer(http.FS(docsFS))))
log.Println("Registering source handle")
http.Handle("/src/", http.StripPrefix("/src/", http.FileServer(http.FS(srcFS))))
log.Println("Registering handlers")
http.HandleFunc("/{$}", handleIndex)
http.HandleFunc("/auth", handleAuth)
http.HandleFunc("/ws", handleWs)
var l net.Listener
switch config.Listen.Trans {
case "plain":
log.Printf(
"Establishing plain listener for net \"%s\", addr \"%s\"\n",
config.Listen.Net,
config.Listen.Addr,
)
l, err = net.Listen(config.Listen.Net, config.Listen.Addr)
if err != nil {
log.Fatalf("Failed to establish plain listener: %v\n", err)
}
case "tls":
cer, err := tls.LoadX509KeyPair(config.Listen.TLS.Cert, config.Listen.TLS.Key)
if err != nil {
log.Fatalf("Failed to load TLS certificate and key: %v\n", err)
}
tlsconfig := &tls.Config{
Certificates: []tls.Certificate{cer},
MinVersion: tls.VersionTLS13,
} //exhaustruct:ignore
log.Printf(
"Establishing TLS listener for net \"%s\", addr \"%s\"\n",
config.Listen.Net,
config.Listen.Addr,
)
l, err = tls.Listen(config.Listen.Net, config.Listen.Addr, tlsconfig)
if err != nil {
log.Fatalf("Failed to establish TLS listener: %v\n", err)
}
default:
log.Fatalln("listen.trans must be \"plain\" or \"tls\"")
}
log.Println("Setting up database")
if err := setupDatabase(); err != nil {
log.Fatal(err)
}
log.Println("Setting up courses")
err = setupCourses()
if err != nil {
log.Fatal(err)
}
log.Println("Setting up JWKS")
if err := setupJwks(); err != nil {
log.Fatal(err)
}
if config.Listen.Proto == "http" {
log.Println("Serving http")
srv := &http.Server{
ReadHeaderTimeout: time.Duration(config.Perf.ReadHeaderTimeout) * time.Second,
} //exhaustruct:ignore
err = srv.Serve(l)
} else {
log.Fatalln("Unsupported protocol")
}
if err != nil {
log.Fatal(err)
}
}
|
