progresses on #49

git/git.go

@@ -13,6 +13,6 @@ func ServeHTTP(w http.ResponseWriter, r *http.Request, c *config.Config) (int, e
 	case "POST":
 		return POST(w, r, c)
 	default:
-		return 400, errors.New("Invalid method.")
+		return http.StatusMethodNotAllowed, errors.New("Invalid method.")
 	}
 }

git/post.go

@@ -1,15 +1,72 @@
 package git
 
 import (
+	"bytes"
+	"encoding/json"
 	"net/http"
+	"os/exec"
+	"strings"
 
 	"github.com/hacdias/caddy-hugo/config"
 )
 
 // POST handles the POST method on GIT page which is only an API.
 func POST(w http.ResponseWriter, r *http.Request, c *config.Config) (int, error) {
+	if _, err := exec.LookPath("git"); err != nil {
+		jsonMessage(w, "Git is not installed on your computer.", false)
+		return 200, nil
+	}
 
-	w.Header().Set("Content-Type", "application/json")
-	w.Write([]byte("{}"))
+	// Get the JSON information sent using a buffer
+	buff := new(bytes.Buffer)
+	buff.ReadFrom(r.Body)
+
+	// Creates the raw file "map" using the JSON
+	var info map[string]interface{}
+	json.Unmarshal(buff.Bytes(), &info)
+
+	if _, ok := info["command"]; !ok {
+		jsonMessage(w, "Command not specified.", false)
+		return 200, nil
+	}
+
+	command := info["command"].(string)
+	args := strings.Split(command, " ")
+
+	if len(args) > 0 && args[0] == "git" {
+		args = append(args[:0], args[1:]...)
+	}
+
+	if len(args) == 0 {
+		jsonMessage(w, "Command not specified.", false)
+		return 200, nil
+	}
+
+	cmd := exec.Command("git", args...)
+	cmd.Dir = c.Path
+	output, err := cmd.CombinedOutput()
+
+	if err != nil {
+		jsonMessage(w, err.Error(), false)
+		return 200, nil
+	}
+
+	jsonMessage(w, string(output), true)
 	return http.StatusOK, nil
 }
+
+type jsonMSG struct {
+	Message string `json:"message"`
+	Success bool   `json:"success"`
+}
+
+func jsonMessage(w http.ResponseWriter, message string, success bool) {
+	msg := &jsonMSG{
+		Message: message,
+		Success: success,
+	}
+
+	m, _ := json.Marshal(msg)
+	w.Header().Set("Content-Type", "application/json")
+	w.Write(m)
+}