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atsebay.t/main.go

118 lines
3.2 KiB
Go

package main
import (
"flag"
"log"
"net/http"
"net/url"
"os"
"os/signal"
"path"
"strings"
"syscall"
)
var baseURL string = "/"
type ResponseWriterPrefix struct {
real http.ResponseWriter
prefix string
}
func (r ResponseWriterPrefix) Header() http.Header {
return r.real.Header()
}
func (r ResponseWriterPrefix) WriteHeader(s int) {
if v, exists := r.real.Header()["Location"]; exists && len(v) > 0 && !strings.HasPrefix(v[0], "https://") && !strings.HasPrefix(v[0], "http://") {
r.real.Header().Set("Location", r.prefix+v[0])
}
r.real.WriteHeader(s)
}
func (r ResponseWriterPrefix) Write(z []byte) (int, error) {
return r.real.Write(z)
}
func StripPrefix(prefix string, h http.Handler) http.Handler {
if prefix == "" {
return h
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if prefix != "/" && r.URL.Path == "/" {
http.Redirect(w, r, prefix+"/", http.StatusFound)
} else if p := strings.TrimPrefix(r.URL.Path, prefix); len(p) < len(r.URL.Path) {
r2 := new(http.Request)
*r2 = *r
r2.URL = new(url.URL)
*r2.URL = *r.URL
r2.URL.Path = p
h.ServeHTTP(ResponseWriterPrefix{w, prefix}, r2)
} else {
h.ServeHTTP(w, r)
}
})
}
func main() {
var bind = flag.String("bind", ":8081", "Bind port/socket")
var dsn = flag.String("dsn", DSNGenerator(), "DSN to connect to the MySQL server")
var dummyauth = flag.Bool("dummy-auth", false, "If set, allow any authentication credentials")
flag.StringVar(&mainBanner, "banner-message", mainBanner, "Display a message to connected user, at the top of the screen")
flag.StringVar(&DevProxy, "dev", DevProxy, "Proxify traffic to this host for static assets")
flag.StringVar(&baseURL, "baseurl", baseURL, "URL prepended to each URL")
flag.UintVar(&currentPromo, "current-promo", currentPromo, "Year of the current promotion")
flag.UintVar(&OffsetQuestionTimer, "offset-question-timer", OffsetQuestionTimer, "Duration to wait before sending pause msg in direct mode (in milliseconds)")
flag.BoolVar(&allowLocalAuth, "allow-local-auth", false, "Allow local authentication for all users (bypass OIDC).")
flag.Var(&localAuthUsers, "local-auth-user", "Allow local authentication for this user (bypass OIDC).")
flag.Parse()
// Sanitize options
var err error
log.Println("Checking paths...")
if err = sanitizeStaticOptions(); err != nil {
log.Fatal(err)
}
if baseURL != "/" {
baseURL = path.Clean(baseURL)
} else {
baseURL = ""
}
if dummyauth != nil && *dummyauth == true {
LocalAuthFunc = dummyAuth
}
// Initialize contents
log.Println("Opening database...")
if err := DBInit(*dsn); err != nil {
log.Fatal("Cannot open the database: ", err)
}
defer DBClose()
log.Println("Creating database...")
if err := DBCreate(); err != nil {
log.Fatal("Cannot create database: ", err)
}
a := NewApp()
go a.Start(*bind)
initializeOIDC(a.router)
initializeDroneOauth()
// Prepare graceful shutdown
interrupt := make(chan os.Signal, 1)
signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM)
// Wait shutdown signal
<-interrupt
log.Print("The service is shutting down...")
a.Stop()
if gitlabToken != nil {
saveOAuth2Token(OAUTH_GITLAB_FILE, gitlabToken())
}
log.Println("done")
}