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73 lines (65 loc) · 2.17 KB
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Copy pathbackground.js
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73 lines (65 loc) · 2.17 KB
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const icon_disabled = {128: "/icons/js_disabled.png"}
const icon_whitelisted = {128: "/icons/js.png"}
function is_whitelisted(dict, host) {
let whitelist_js = true
if (dict[host] !== undefined) {
whitelist_js = dict[host]
}
return whitelist_js
}
function add_csp_nojs_header(response) {
let host = new URL(response.url).hostname
let headers = response.responseHeaders
return new Promise( (resolve) => {
browser.storage.local.get(host).then(item => {
let whitelist_js = is_whitelisted(item, host)
if (!whitelist_js) {
var new_csp = {name: "Content-Security-Policy", value: "script-src 'none';"}
headers.push(new_csp)
}
resolve({responseHeaders: headers})
})
})
}
browser.webRequest.onHeadersReceived.addListener(
add_csp_nojs_header,
{urls: ["<all_urls>"],
types: ["main_frame"]},
["blocking", "responseHeaders"]
)
browser.tabs.onUpdated.addListener((id, changeInfo) => {
if (changeInfo.url) {
let host = new URL(changeInfo.url).hostname
browser.storage.local.get(host).then(item => {
let whitelist_js = is_whitelisted(item, host)
let path_icon = whitelist_js ? icon_whitelisted : icon_disabled
browser.pageAction.setIcon({
path: path_icon,
tabId: id
})
let word = whitelist_js ? "Disable" : "Enable"
browser.pageAction.setTitle({
title: word + " Javascript",
tabId: id
})
if (!whitelist_js) {
browser.tabs.executeScript(
id, {
file: '/background/content.js'
})
}
})
}
browser.pageAction.show(id)
})
browser.pageAction.onClicked.addListener(function(tab) {
let host = new URL(tab.url).hostname
browser.storage.local.get(host).then(item => {
let whitelist_js = is_whitelisted(item, host)
let to_store = {}
to_store[host] = !whitelist_js
browser.storage.local.set(to_store).then( function() {
browser.tabs.reload()
})
})
})