diff options
Diffstat (limited to 'background/policy_smuggler.js')
-rw-r--r-- | background/policy_smuggler.js | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/background/policy_smuggler.js b/background/policy_smuggler.js new file mode 100644 index 0000000..6d0da38 --- /dev/null +++ b/background/policy_smuggler.js @@ -0,0 +1,64 @@ +/** +* Myext smuggling policy to content script through url +* +* Copyright (C) 2021 Wojtek Kosior +* +* Dual-licensed under: +* - 0BSD license +* - GPLv3 or (at your option) any later version +*/ + +"use strict"; + +(() => { + const TYPE_PREFIX = window.TYPE_PREFIX; + const get_storage = window.get_storage; + const browser = window.browser; + const url_item = window.url_item; + + var storage; + + function redirect(request) + { + let url_re = /^([^#]*)((#[^#]*)(#.*)?)?$/; + let match = url_re.exec(request.url); + let base_url = match[1]; + let first_target = match[3]; + let second_target = match[4]; + + if (first_target === "#myext-allow") { + console.log(["not redirecting"]); + return {cancel : false}; + } + + let url = url_item(request.url); + let settings = storage.get(TYPE_PREFIX.PAGE, url); + console.log("got", storage.get(TYPE_PREFIX.PAGE, url), "for", url); + if (settings === undefined || !settings.allow) + return {cancel : false}; + + second_target = (first_target || "") + (second_target || "") + + console.log(["redirecting", request.url, + (base_url + "#myext-allow" + second_target)]); + + return { + redirectUrl : (base_url + "#myext-allow" + second_target) + }; + } + + async function start() { + storage = await get_storage(); + + chrome.webRequest.onBeforeRequest.addListener( + redirect, + { + urls: ["<all_urls>"], + types: ["main_frame", "sub_frame"] + }, + ["blocking"] + ); + } + + window.start_policy_smuggler = start; +})(); |