summaryrefslogtreecommitdiff
path: root/main.go
blob: e69b3c1bbc36faae345b39eb1e10e47f58678e24 (plain) (blame)
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
/*
 * 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 (
	"html/template"
	"log"
	"net"
	"net/http"
	"net/http/fcgi"
	"time"
)

var tmpl *template.Template

func main() {
	var err error

	if err := fetchConfig("cca.scfg"); err != nil {
		log.Fatal(err)
	}

	log.Println("Setting up database")
	if err := setupDatabase(); err != nil {
		log.Fatal(err)
	}

	log.Println("Setting up JWKS")
	if err := setupJwks(); err != nil {
		log.Fatal(err)
	}

	log.Println("Setting up templates")
	tmpl, err = template.ParseGlob(config.Tmpl)
	if err != nil {
		log.Fatal(err)
	}

	log.Println("Setting up courses")
	err = setupCourses()
	if err != nil {
		log.Fatal(err)
	}

	log.Println("Setting up WebSocket connection pool")
	err = setupChanPool()
	if err != nil {
		log.Fatal(err)
	}

	if config.Static {
		log.Println("Registering static handle")
		fs := http.FileServer(http.Dir("./static"))
		http.Handle("/static/", http.StripPrefix("/static/", fs))
	}

	log.Println("Registering handlers")
	http.HandleFunc("/{$}", handleIndex)
	http.HandleFunc("/auth", handleAuth)
	http.HandleFunc("/ws", handleWs)

	log.Printf(
		"Establishing 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.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 if config.Listen.Proto == "fcgi" {
		log.Println("Serving fcgi")
		err = fcgi.Serve(l, nil)
	}
	if err != nil {
		log.Fatal(err)
	}
}