From b7e2870ff58ef85370781aa04e9e0126988e39fd Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <koszko@koszko.org>
Date: Tue, 6 Jul 2021 18:25:34 +0200
Subject: show some settings of the current page in the popup

---
 content/main.js | 54 ++++++++++++++++++++++++++++++++----------------------
 1 file changed, 32 insertions(+), 22 deletions(-)

(limited to 'content/main.js')

diff --git a/content/main.js b/content/main.js
index 65ac008..5d88a6d 100644
--- a/content/main.js
+++ b/content/main.js
@@ -12,10 +12,12 @@
  * IMPORT url_extract_target
  * IMPORT gen_unique
  * IMPORT csp_rule
+ * IMPORT is_privileged_url
  * IMPORT sanitize_attributes
  * IMPORT script_suppressor
  * IMPORT is_chrome
  * IMPORT is_mozilla
+ * IMPORT start_activity_info_server
  * IMPORTS_END
  */
 
@@ -35,11 +37,14 @@ let unique = gen_unique(url);
 
 const suppressor = script_suppressor(unique);
 
-function needs_blocking()
+
+function is_http()
 {
-    if (url.startsWith("https://") || url.startsWith("http://"))
-	return false;
+    return !!/^https?:\/\//i.exec(document.URL);
+}
 
+function is_whitelisted()
+{
     const parsed_url = url_extract_target(document.URL);
 
     if (parsed_url.target !== undefined &&
@@ -49,12 +54,10 @@ function needs_blocking()
 	else
 	    history.replaceState(null, "", parsed_url.base_url);
 
-	console.log(["allowing whitelisted", document.URL]);
-	return false;
+	return true;
     }
 
-    console.log(["disallowing", document.URL]);
-    return true;
+    return false;
 }
 
 function handle_mutation(mutations, observer)
@@ -120,20 +123,27 @@ function inject_csp(head)
 	head.insertBefore(meta, head.firstElementChild);
 }
 
-if (needs_blocking()) {
-    block_nodes_recursively(document.documentElement);
-
-    if (is_chrome) {
-	var observer = new MutationObserver(handle_mutation);
-	observer.observe(document.documentElement, {
-	    attributes: true,
-	    childList: true,
-	    subtree: true
-	});
+if (!is_privileged_url(document.URL)) {
+    start_activity_info_server();
+    handle_page_actions(unique);
+
+    if (is_http()) {
+	/* rely on CSP injected through webRequest */
+    } else if (is_whitelisted()) {
+	/* do not block scripts at all */
+    } else {
+	block_nodes_recursively(document.documentElement);
+
+	if (is_chrome) {
+	    var observer = new MutationObserver(handle_mutation);
+	    observer.observe(document.documentElement, {
+		attributes: true,
+		childList: true,
+		subtree: true
+	    });
+	}
+
+	if (is_mozilla)
+	    addEventListener('beforescriptexecute', suppressor, true);
     }
-
-    if (is_mozilla)
-	addEventListener('beforescriptexecute', suppressor, true);
 }
-
-handle_page_actions(unique);
-- 
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