/
main.go
251 lines (225 loc) · 6.59 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
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
package main
import (
"bytes"
"context"
"crypto/md5"
"embed"
"flag"
"fmt"
"html/template"
"io"
"io/fs"
"net/http"
"os"
"os/signal"
"reflect"
"strings"
"syscall"
"time"
"github.com/coreos/go-oidc/v3/oidc"
"github.com/dustin/go-humanize"
"github.com/topi314/godrive/godrive"
"go.opentelemetry.io/otel/metric"
"go.opentelemetry.io/otel/trace"
"golang.org/x/exp/slog"
"golang.org/x/oauth2"
"github.com/mitchellh/mapstructure"
"github.com/spf13/viper"
)
// These variables are set via the -ldflags option in go build
var (
Name = "godrive"
Namespace = "github.com/topi314/godrive"
Version = "unknown"
Commit = "unknown"
BuildTime = "unknown"
)
var (
//go:embed templates
Templates embed.FS
//go:embed assets
Assets embed.FS
//go:embed sql/schema.sql
Schema string
)
func main() {
cfgPath := flag.String("config", "", "path to godrive.json")
flag.Parse()
viper.SetDefault("listen_addr", ":80")
viper.SetDefault("dev_mode", false)
viper.SetDefault("debug", false)
viper.SetDefault("database_type", "sqlite")
viper.SetDefault("database_debug", false)
viper.SetDefault("database_expire_after", "0")
viper.SetDefault("database_cleanup_interval", "1m")
viper.SetDefault("database_path", "gobin.db")
viper.SetDefault("database_host", "localhost")
viper.SetDefault("database_port", 5432)
viper.SetDefault("database_username", "gobin")
viper.SetDefault("database_database", "gobin")
viper.SetDefault("database_ssl_mode", "disable")
viper.SetDefault("storage_type", "local")
viper.SetDefault("storage_path", "/etc/godrive/storage")
if *cfgPath != "" {
viper.SetConfigFile(*cfgPath)
} else {
viper.SetConfigName("godrive")
viper.SetConfigType("json")
viper.AddConfigPath(".")
viper.AddConfigPath("/etc/godrive/")
}
if err := viper.ReadInConfig(); err != nil {
slog.Error("Error while reading config", slog.Any("err", err))
os.Exit(-1)
}
viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
viper.SetEnvPrefix("godrive")
viper.AutomaticEnv()
var cfg godrive.Config
if err := viper.Unmarshal(&cfg, func(config *mapstructure.DecoderConfig) {
config.TagName = "cfg"
}); err != nil {
slog.Error("Error while unmarshalling config", slog.Any("err", err))
os.Exit(-1)
}
setupLogger(cfg.Log)
buildTime, _ := time.Parse(time.RFC3339, BuildTime)
slog.Info("Starting godrive", slog.Any("version", Version), slog.Any("commit", Commit), slog.Any("buildTime", buildTime), slog.Any("config", cfg))
var (
tracer trace.Tracer
meter metric.Meter
err error
)
if cfg.Otel != nil {
tracer, err = newTracer(*cfg.Otel)
if err != nil {
slog.Error("Error while creating tracer", slog.Any("err", err))
os.Exit(1)
}
meter, err = newMeter(*cfg.Otel)
if err != nil {
slog.Error("Error while creating meter", slog.Any("err", err))
os.Exit(1)
}
} else {
tracer = trace.NewNoopTracerProvider().Tracer(Namespace)
}
var auth *godrive.Auth
if cfg.Auth != nil {
provider, err := oidc.NewProvider(context.Background(), cfg.Auth.Issuer)
if err != nil {
slog.Error("Error while creating oidc provider", slog.Any("err", err))
os.Exit(-1)
}
auth = &godrive.Auth{
Provider: provider,
Verifier: provider.Verifier(&oidc.Config{
ClientID: cfg.Auth.ClientID,
}),
Config: &oauth2.Config{
ClientID: cfg.Auth.ClientID,
ClientSecret: cfg.Auth.ClientSecret,
Endpoint: provider.Endpoint(),
RedirectURL: cfg.Auth.RedirectURL,
Scopes: []string{oidc.ScopeOpenID, "groups", "email", "profile", oidc.ScopeOfflineAccess},
},
Sessions: map[string]*godrive.Session{},
States: map[string]string{},
}
}
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
db, err := godrive.NewDB(ctx, cfg.Database, Schema)
if err != nil {
slog.Error("Error while connecting to database", slog.Any("err", err))
os.Exit(-1)
}
defer db.Close()
storage, err := godrive.NewStorage(context.Background(), cfg.Storage, tracer)
if err != nil {
slog.Error("Error while creating storage", slog.Any("err", err))
os.Exit(-1)
}
funcs := template.FuncMap{
"humanizeTime": humanize.Time,
"humanizeIBytes": humanize.IBytes,
"isLast": func(slice any, index int) bool {
return reflect.ValueOf(slice).Len()-1 == index
},
"assemblePath": func(slice []string, index int) string {
return strings.Join(slice[:index+1], "/")
},
"gravatarURL": func(email string) string {
return fmt.Sprintf("https://www.gravatar.com/avatar/%x?s=%d&d=retro", md5.Sum([]byte(strings.ToLower(email))), 80)
},
}
var (
tmplFunc godrive.ExecuteTemplateFunc
jsFunc godrive.WriterFunc
cssFunc godrive.WriterFunc
assets http.FileSystem
)
if cfg.DevMode {
slog.Info("Running in dev mode")
tmplFunc = func(wr io.Writer, name string, data any) error {
tmpl := template.New("").Funcs(funcs)
tmpl = template.Must(tmpl.ParseGlob("templates/*"))
return tmpl.ExecuteTemplate(wr, name, data)
}
jsFunc = writeDir(os.DirFS("assets"), "js/*")
cssFunc = writeDir(os.DirFS("assets"), "css/*")
assets = http.Dir(".")
} else {
tmpl := template.New("").Funcs(funcs)
tmpl = template.Must(tmpl.ParseFS(Templates, "templates/*"))
tmplFunc = tmpl.ExecuteTemplate
jsBuff := new(bytes.Buffer)
if err = writeDir(Assets, "assets/js/*")(jsBuff); err != nil {
slog.Error("Error while minifying js", slog.Any("err", err))
}
cssBuff := new(bytes.Buffer)
if err = writeDir(Assets, "assets/css/*")(cssBuff); err != nil {
slog.Error("Error while minifying css", slog.Any("err", err))
}
jsFunc = func(w io.Writer) error {
_, err = w.Write(jsBuff.Bytes())
return err
}
cssFunc = func(w io.Writer) error {
_, err = w.Write(cssBuff.Bytes())
return err
}
assets = http.FS(Assets)
}
s := godrive.NewServer(godrive.FormatBuildVersion(Version, Commit, buildTime), cfg, db, auth, storage, tracer, meter, assets, tmplFunc, jsFunc, cssFunc)
slog.Info("godrive listening", slog.String("listen_addr", cfg.ListenAddr))
go s.Start()
defer s.Close()
si := make(chan os.Signal, 1)
signal.Notify(si, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
<-si
}
func writeDir(fs fs.FS, pattern string) func(w io.Writer) error {
return func(w io.Writer) error {
fr, err := newFolderReader(fs, pattern)
if err != nil {
return err
}
defer fr.Close()
_, err = io.Copy(w, fr)
return err
}
}
func setupLogger(cfg godrive.LogConfig) {
opts := &slog.HandlerOptions{
AddSource: cfg.AddSource,
Level: cfg.Level,
}
var handler slog.Handler
if cfg.Format == "json" {
handler = slog.NewJSONHandler(os.Stdout, opts)
} else {
handler = slog.NewTextHandler(os.Stdout, opts)
}
slog.SetDefault(slog.New(handler))
}