/
main.go
165 lines (139 loc) · 3.7 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
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
154
155
156
157
158
159
160
161
162
163
164
165
package main
//go:generate go run _gogenerate/generate_mocks.go
import (
"errors"
"flag"
"fmt"
"net/http"
"os"
"golang.org/x/net/http2" // FIXME 20160214: Remove when Go 1.6 is released
"github.com/larsmoa/renderdb/db/sql"
"github.com/larsmoa/renderdb/repository"
"github.com/larsmoa/renderdb/routes"
"github.com/codegangsta/negroni"
"github.com/gorilla/mux"
"github.com/jmoiron/sqlx"
_ "github.com/lib/pq"
_ "github.com/mattn/go-sqlite3"
)
type applicationArgs struct {
serverAddress string
dbConnectionString string
dbDriver string
useHTTP2 bool
tlsCertFile string
tlsKeyFile string
}
type application struct {
args applicationArgs
db *sqlx.DB
repo repository.Repository
webHandler *negroni.Negroni
router *mux.Router
}
func (a *application) parseArguments() error {
flag.StringVar(&a.args.serverAddress, "serverAddress", ":8080", "")
flag.StringVar(&a.args.dbDriver, "driver", "",
"Example: 'sqlite3'")
flag.StringVar(&a.args.dbConnectionString, "datasource", "",
"Example: 'file:test.db'")
flag.StringVar(&a.args.tlsCertFile, "cert", "",
"TLS certificate to use to secure the HTTP link.")
flag.StringVar(&a.args.tlsKeyFile, "key", "",
"TLS private key to use to secure the HTTP link.")
flag.BoolVar(&a.args.useHTTP2, "http2", false,
"Enable HTTP2 support. Requires TLS certification and private key.")
flag.Parse()
return nil
}
func (a *application) initializeDatabase() error {
if a.args.dbConnectionString != "" {
db, err := sqlx.Open(a.args.dbDriver, a.args.dbConnectionString)
if err != nil {
return err
}
a.db = db
} else {
// In-memory test database
db, err := sqlx.Open("sqlite3", ":memory:")
if err != nil {
return err
}
a.db = db
}
return sql.Initialize(a.db)
}
func (a *application) initializeRepository() error {
// var err error
// a.repo, err = repository.NewRepository(a.db)
// return err
return nil
}
func (a *application) initializeRoutes() error {
a.webHandler = negroni.New(negroni.NewRecovery(), negroni.NewLogger())
a.router = mux.NewRouter()
a.webHandler.UseHandler(a.router)
routes.NewStaticController(a.router)
routes.RegisterWorldsRoutes(a.router, a.db)
routes.RegisterLayersRoutes(a.router, a.db)
routes.RegisterScenesRoutes(a.router, a.db)
return nil
}
func (a *application) initializeServer() error {
srv := &http.Server{
Addr: a.args.serverAddress,
Handler: a.router,
}
// Use HTTP 2?
protocolVersion := "1.1"
if a.args.useHTTP2 {
protocolVersion = "2"
http2.ConfigureServer(srv,
&http2.Server{
MaxHandlers: 10,
MaxConcurrentStreams: 50,
})
}
// TLS certificate/key
if a.args.tlsCertFile != "" && a.args.tlsKeyFile != "" {
fmt.Printf("Serving at %s using HTTPS/%s...", a.args.serverAddress, protocolVersion)
return srv.ListenAndServeTLS(a.args.tlsCertFile, a.args.tlsKeyFile)
} else if a.args.tlsCertFile != "" || a.args.tlsKeyFile != "" {
return errors.New("Must provide both TLS certificate and private key.")
} else if a.args.useHTTP2 {
return errors.New("Must provide TLS certificate and private key when using HTTP/2.")
}
fmt.Printf("Serving at %s using HTTP/%s...", a.args.serverAddress, protocolVersion)
return srv.ListenAndServe()
}
func (a *application) run() (int, error) {
err := a.parseArguments()
if err != nil {
return 1, err
}
err = a.initializeDatabase()
if err != nil {
return 2, err
}
err = a.initializeRepository()
if err != nil {
return 3, err
}
err = a.initializeRoutes()
if err != nil {
return 4, err
}
err = a.initializeServer()
if err != nil {
return 5, err
}
return 0, nil
}
func main() {
app := application{}
code, err := app.run()
if err != nil {
fmt.Printf("Error: %v", err)
}
os.Exit(code)
}