1 files changed, 54 insertions, 0 deletions
diff --git a/tent.go b/tent.go
new file mode 100644
index 0000000..65d65dd
--- /dev/null
+++ b/tent.go
@@ -0,0 +1,54 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"math/rand"
+	"net"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"time"
+)
+
+var path string
+
+func RequestHandler(w http.ResponseWriter, r *http.Request) {
+	p := filepath.Join(path, strings.Replace(r.URL.Path, "..", "", -1))
+	http.ServeFile(w, r, p)
+}
+
+func main() {
+	var host string
+	var port uint64
+
+	flag.StringVar(&host, "host", "127.0.0.1", "IP address to listen on")
+	flag.Uint64Var(&port, "port", 0, "Port to listen on (default random)")
+	flag.StringVar(&path, "path", "./", "Absolute or relative path to serve")
+	flag.Parse()
+
+	if _, err := os.Stat(path); err != nil {
+		panic(err)
+	}
+
+	if port == 0 {
+		rand.Seed(time.Now().UnixNano())
+		for {
+			port = uint64(rand.Intn(65535-1024) + 1024)
+			conn, _ := net.DialTimeout("tcp", net.JoinHostPort(host,
+				strconv.Itoa(int(port))), time.Second)
+			if conn != nil {
+				conn.Close()
+			} else {
+				break
+			}
+		}
+	}
+
+	http.HandleFunc("/", RequestHandler)
+	fmt.Printf("Listening on %v port %v (http://%v:%v/)\n", host, port, host, port)
+	log.Fatal(http.ListenAndServe(fmt.Sprintf("%s:%d", host, port), nil))
+}