97 lines
2.4 KiB
Go
97 lines
2.4 KiB
Go
package main
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import (
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"flag"
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"log"
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"net/http"
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"net/url"
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"path"
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"path/filepath"
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"strings"
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)
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var sharedSecret string
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var StaticDir string
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type ResponseWriterPrefix struct {
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real http.ResponseWriter
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prefix string
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}
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func (r ResponseWriterPrefix) Header() http.Header {
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return r.real.Header()
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}
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func (r ResponseWriterPrefix) WriteHeader(s int) {
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if v, exists := r.real.Header()["Location"]; exists {
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r.real.Header().Set("Location", r.prefix+v[0])
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}
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r.real.WriteHeader(s)
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}
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func (r ResponseWriterPrefix) Write(z []byte) (int, error) {
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return r.real.Write(z)
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}
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func StripPrefix(prefix string, h http.Handler) http.Handler {
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if prefix == "" {
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return h
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}
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if prefix != "/" && r.URL.Path == "/" {
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http.Redirect(w, r, prefix+"/", http.StatusFound)
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} else if p := strings.TrimPrefix(r.URL.Path, prefix); len(p) < len(r.URL.Path) {
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r2 := new(http.Request)
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*r2 = *r
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r2.URL = new(url.URL)
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*r2.URL = *r.URL
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r2.URL.Path = p
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h.ServeHTTP(ResponseWriterPrefix{w, prefix}, r2)
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} else {
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h.ServeHTTP(w, r)
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}
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})
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}
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func main() {
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var bind = flag.String("bind", ":8081", "Bind port/socket")
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var dsn = flag.String("dsn", DSNGenerator(), "DSN to connect to the MySQL server")
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var baseURL = flag.String("baseurl", "/", "URL prepended to each URL")
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flag.StringVar(&sharedSecret, "sharedsecret", "adelina", "secret used to communicate with remote validator")
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flag.StringVar(&AuthorizedKeysLocation, "authorizedkeyslocation", AuthorizedKeysLocation, "File for allowing user to SSH to the machine")
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flag.StringVar(&SshPiperLocation, "sshPiperLocation", SshPiperLocation, "Directory containing directories for sshpiperd")
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flag.Parse()
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// Sanitize options
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var err error
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log.Println("Checking paths...")
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if StaticDir, err = filepath.Abs(StaticDir); err != nil {
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log.Fatal(err)
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}
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if *baseURL != "/" {
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tmp := path.Clean(*baseURL)
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baseURL = &tmp
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} else {
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tmp := ""
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baseURL = &tmp
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}
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// Initialize contents
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log.Println("Opening database...")
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if err := DBInit(*dsn); err != nil {
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log.Fatal("Cannot open the database: ", err)
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}
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defer DBClose()
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log.Println("Creating database...")
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if err := DBCreate(); err != nil {
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log.Fatal("Cannot create database: ", err)
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}
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// Serve content
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log.Println("Ready, listening on", *bind)
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if err := http.ListenAndServe(*bind, StripPrefix(*baseURL, Router())); err != nil {
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log.Fatal("Unable to listen and serve: ", err)
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}
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}
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