118 lines
2.6 KiB
Go
118 lines
2.6 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"flag"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"log"
|
|
"net/http"
|
|
"net/url"
|
|
"os"
|
|
"os/signal"
|
|
"path"
|
|
"strings"
|
|
"syscall"
|
|
)
|
|
|
|
var myLDAP = LDAP{
|
|
Host: "localhost",
|
|
Port: 389,
|
|
BaseDN: "dc=example,dc=com",
|
|
}
|
|
|
|
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 {
|
|
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", "127.0.0.1:8080", "Bind port/socket")
|
|
var baseURL = flag.String("baseurl", "/", "URL prepended to each URL")
|
|
var configfile = flag.String("config", "config.json", "path to the configuration file")
|
|
flag.Parse()
|
|
|
|
// Sanitize options
|
|
log.Println("Checking paths...")
|
|
if *baseURL != "/" {
|
|
tmp := path.Clean(*baseURL)
|
|
baseURL = &tmp
|
|
} else {
|
|
tmp := ""
|
|
baseURL = &tmp
|
|
}
|
|
|
|
// Load config file
|
|
if fd, err := os.Open(*configfile); err != nil {
|
|
log.Fatal(err)
|
|
} else if cnt, err := ioutil.ReadAll(fd); err != nil {
|
|
log.Fatal(err)
|
|
} else if err := json.Unmarshal(cnt, &myLDAP); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
// Prepare graceful shutdown
|
|
interrupt := make(chan os.Signal, 1)
|
|
signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM)
|
|
|
|
// Register handlers
|
|
http.HandleFunc(fmt.Sprintf("%s/", *baseURL), changePassword)
|
|
http.HandleFunc(fmt.Sprintf("%s/login", *baseURL), tryLogin)
|
|
http.HandleFunc(fmt.Sprintf("%s/change", *baseURL), changePassword)
|
|
http.HandleFunc(fmt.Sprintf("%s/reset", *baseURL), resetPassword)
|
|
http.HandleFunc(fmt.Sprintf("%s/lost", *baseURL), lostPassword)
|
|
|
|
srv := &http.Server{
|
|
Addr: *bind,
|
|
}
|
|
|
|
// Serve content
|
|
go func() {
|
|
log.Fatal(srv.ListenAndServe())
|
|
}()
|
|
log.Println(fmt.Sprintf("Ready, listening on %s", *bind))
|
|
|
|
// Wait shutdown signal
|
|
<-interrupt
|
|
|
|
log.Print("The service is shutting down...")
|
|
srv.Shutdown(context.Background())
|
|
log.Println("done")
|
|
}
|