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package main
import (
"errors"
"fmt"
"log"
"net"
"net/http"
"net/url"
"os"
"path/filepath"
"strings"
"time"
"bloat/config"
"bloat/renderer"
"bloat/repo"
"bloat/service"
"bloat/util"
)
var (
configFile = "/etc/bloat.conf"
)
func errExit(err error) {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
func setupHttp(proxyUrl *string) {
tr := http.DefaultTransport.(*http.Transport)
tr.MaxIdleConnsPerHost = 30
tr.MaxIdleConns = 300
tr.ForceAttemptHTTP2 = false
tr.DialContext = (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 3 * time.Minute,
DualStack: true,
}).DialContext
if proxyUrl != nil {
proxyUrl, err := url.Parse(*proxyUrl)
if err != nil {
log.Fatalln(err)
}
tr.Proxy = http.ProxyURL(proxyUrl)
}
client := http.DefaultClient
client.Transport = tr
}
func main() {
opts, _, err := util.Getopts(os.Args, "f:")
if err != nil {
errExit(err)
}
for _, opt := range opts {
switch opt.Option {
case 'f':
configFile = opt.Value
}
}
config, err := config.ParseFile(configFile)
if err != nil {
errExit(err)
}
if !config.IsValid() {
errExit(errors.New("invalid config"))
}
templatesGlobPattern := filepath.Join(config.TemplatesPath, "*")
renderer, err := renderer.NewRenderer(templatesGlobPattern)
if err != nil {
errExit(err)
}
err = os.Mkdir(config.DatabasePath, 0755)
if err != nil && !os.IsExist(err) {
errExit(err)
}
sessionDBPath := filepath.Join(config.DatabasePath, "session")
sessionDB, err := util.NewDatabse(sessionDBPath)
if err != nil {
errExit(err)
}
appDBPath := filepath.Join(config.DatabasePath, "app")
appDB, err := util.NewDatabse(appDBPath)
if err != nil {
errExit(err)
}
sessionRepo := repo.NewSessionRepo(sessionDB)
appRepo := repo.NewAppRepo(appDB)
customCSS := config.CustomCSS
if len(customCSS) > 0 && !strings.HasPrefix(customCSS, "http://") &&
!strings.HasPrefix(customCSS, "https://") {
customCSS = "/static/" + customCSS
}
var logger *log.Logger
if len(config.LogFile) < 1 {
logger = log.New(os.Stdout, "", log.LstdFlags)
} else {
lf, err := os.OpenFile(config.LogFile,
os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
if err != nil {
errExit(err)
}
defer lf.Close()
logger = log.New(lf, "", log.LstdFlags)
}
setupHttp(config.ProxyUrl)
s := service.NewService(config.ClientName, config.ClientScope,
config.ClientWebsite, customCSS, config.PostFormats, renderer,
sessionRepo, appRepo, config.SingleInstance)
handler := service.NewHandler(s, logger, config.StaticDirectory)
logger.Println("listening on", config.ListenAddress)
err = http.ListenAndServe(config.ListenAddress, handler)
if err != nil {
errExit(err)
}
}