2 files changed, 103 insertions, 1 deletions

diff --git a/README.md b/README.md
index 2fb8ca5..f76488e 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,15 @@
 StaticWeb
 =========
 
-StaticWeb
\ No newline at end of file
+StaticWeb is a basic static files web server written in Go.
+
+It automatically serves the content of the folder corresponding to the domain of the website.
+
+Usage
+-----
+
+``./StaticWeb -addr="[Address to listen: 127.0.0.1]" -port="[Port to listen: 80]" -dir="[Absolute or relative path to the root directory to serve: .]" -log="[Absolute or relative path to the log file. Leave empty for stdout]"``
+
+The program will serve the files in the folder (inside the given root directory) with the same name as the domain from which the request originated.
+
+To serve multiple sites with the same content, you can use symbolic links.
\ No newline at end of file
diff --git a/main.go b/main.go
new file mode 100755
index 0000000..29eed83
--- /dev/null
+++ b/main.go
@@ -0,0 +1,91 @@
+/*
+
+        This file is part of StaticWeb (https://github.com/Pacien/StaticWeb).
+
+        StaticWeb is free software: you can redistribute it and/or modify
+        it under the terms of the GNU Affero General Public License as published by
+        the Free Software Foundation, either version 3 of the License, or
+        (at your option) any later version.
+
+        StaticWeb is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+        GNU Affero General Public License for more details.
+
+        You should have received a copy of the GNU Affero General Public License
+        along with StaticWeb. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+package main
+
+import (
+        "flag"
+        "log"
+        "net/http"
+        "os"
+        "strings"
+)
+
+var params struct {
+        addr, port, dir, log string
+}
+
+func defaultHandler(w http.ResponseWriter, r *http.Request) {
+        host := strings.Split(*&r.Host, ":")
+        if host[0] == "" {
+                log.Println("No host")
+                http.Error(w, "404 page not found", http.StatusNotFound)
+                return
+        }
+        request := r.URL.Path[1:]
+        requestedFile := *&params.dir + "/" + *&host[0] + "/" + *&request
+        log.Println(requestedFile)
+        file, err := os.Stat(requestedFile)
+        if err != nil {
+                log.Println(err)
+                http.Error(w, "404 page not found", http.StatusNotFound)
+                return
+        }
+        if file.IsDir() && !strings.HasSuffix(requestedFile, "/") {
+                http.Redirect(w, r, r.URL.Path+"/", http.StatusFound)
+                return
+        }
+        http.ServeFile(w, r, *&requestedFile)
+}
+
+func init() {
+        flag.StringVar(&params.addr, "addr", "127.0.0.1", "Address to listen.")
+        flag.StringVar(&params.port, "port", "8080", "Port to listen.")
+        flag.StringVar(&params.dir, "dir", ".", "Absolute or relative path to the root directory to serve.")
+        flag.StringVar(&params.log, "log", "", "Absolute or relative path to the log file. Leave empty for stdout.")
+        flag.Parse()
+}
+
+func main() {
+        if params.log != "" {
+                logFile, err := os.OpenFile(*&params.log, os.O_WRONLY, 0666)
+                if os.IsNotExist(*&err) {
+                        log.Println("Log file not found, creating a new log file:", *&err)
+                        logFile, err = os.Create(*&params.log)
+                        if err != nil {
+                                log.Println("Cannot create log file:", *&err)
+                                return
+                        }
+                } else if *&err != nil {
+                        log.Println("Cannot open log file:", *&err)
+                        return
+                }
+                defer logFile.Close()
+                log.SetOutput(*&logFile)
+        }
+
+        log.Println("Starting StaticWeb on " + *&params.addr + ":" + *&params.port)
+
+        http.HandleFunc("/", defaultHandler)
+        err := http.ListenAndServe(*&params.addr+":"+*&params.port, nil)
+        if err != nil {
+                log.Println(*&err)
+                return
+        }
+}