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'use strict';
// debug = () => {}; // XPI_ONLY
var _ = browser.i18n.getMessage;
var canScript = true;
var embeddingDocument = false;
var seen = {
_map: new Map(),
_list: null,
record(event) {
let key = event.request.key;
if (this._map.has(key)) return;
this._map.set(key, event);
this._list = null;
},
get list() {
return this._list || (this._list = [...this._map.values()]);
}
}
var handlers = {
seen(event) {
let {allowed, policyType, request, ownFrame} = event;
if (window.top === window) {
seen.record(event);
}
if (ownFrame) {
init();
if (!allowed && PlaceHolder.canReplace(policyType)) {
request.embeddingDocument = embeddingDocument;
PlaceHolder.create(policyType, request);
}
}
},
collect(event) {
let list = seen.list;
debug("COLLECT", list);
return list;
}
};
browser.runtime.onMessage.addListener(async event => {
if (event.type in handlers) {
debug("Received message", event);
return handlers[event.type](event);
}
});
if (document.readyState !== "complete") {
let pageshown = e => {
removeEventListener("pageshow", pageshown);
init();
};
addEventListener("pageshow", pageshown);
} else init();
let notifyPage = () => {
if (document.readyState === "complete") {
browser.runtime.sendMessage({type: "pageshow", seen, canScript});
return true;
}
return false;
}
async function init() {
try {
canScript = await browser.runtime.sendMessage({type: "canScript"});
init = () => {};
debug("canScript:", canScript);
} catch (e) {
// background script not initialized yet?
setTimeout(() => init(), 100);
return;
}
if (!canScript) onScriptDisabled();
seen.record({
request: {
key: "noscript-probe",
url: document.URL,
documentUrl: document.URL,
type: window === window.top ? "main_frame" : "script",
},
allowed: canScript
}
);
debug(`Loading NoScript in document %s, scripting=%s, content type %s readyState %s`,
document.URL, canScript, document.contentType, document.readyState);
if (/application|video|audio/.test(document.contentType)) {
debug("Embedding document detected");
embeddingDocument = true;
window.addEventListener("pageshow", e => {
debug("Active content still in document %s: %o", document.url, document.querySelectorAll("embed,object,video,audio"));
}, true);
// document.write("<plaintext>");
}
notifyPage() || addEventListener("pageshow", notifyPage);
};
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