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/*
* This file is part of Adblock Plus <https://adblockplus.org/>,
* Copyright (C) 2006-2017 eyeo GmbH
*
* Adblock Plus is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* Adblock Plus is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>.
*/
let {Services} = Cu.import("resource://gre/modules/Services.jsm", {});
let {port} = require("messaging");
Services.obs.addObserver(onContentWindow, "content-document-global-created",
false);
onShutdown.add(() =>
{
Services.obs.removeObserver(onContentWindow,
"content-document-global-created");
});
function onContentWindow(subject, topic, data)
{
if (subject instanceof Ci.nsIDOMWindow && subject.top == subject)
{
let eventTarget = subject.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIWebNavigation)
.QueryInterface(Ci.nsIDocShell)
.chromeEventHandler;
if (eventTarget)
eventTarget.addEventListener("click", onClick, true);
}
}
function onClick(event)
{
if (onShutdown.done)
return;
// Ignore right-clicks
if (event.button == 2)
return;
// Search the link associated with the click
let link = event.target;
while (!(link instanceof Ci.nsIDOMHTMLAnchorElement))
{
link = link.parentNode;
if (!link)
return;
}
let queryString = null;
if (link.protocol == "http:" || link.protocol == "https:")
{
if (link.host == "subscribe.adblockplus.org" && link.pathname == "/")
queryString = link.search.substr(1);
}
else
{
// Firefox doesn't populate the "search" property for links with
// non-standard URL schemes so we need to extract the query string
// manually
let match = /^abp:\/*subscribe\/*\?(.*)/i.exec(link.href);
if (match)
queryString = match[1];
}
if (!queryString)
return;
// This is our link - make sure the browser doesn't handle it
event.preventDefault();
event.stopPropagation();
// Decode URL parameters
let title = null;
let url = null;
let mainSubscriptionTitle = null;
let mainSubscriptionURL = null;
for (let param of queryString.split("&"))
{
let parts = param.split("=", 2);
if (parts.length != 2 || !/\S/.test(parts[1]))
continue;
switch (parts[0])
{
case "title":
title = decodeURIComponent(parts[1]);
break;
case "location":
url = decodeURIComponent(parts[1]);
break;
case "requiresTitle":
mainSubscriptionTitle = decodeURIComponent(parts[1]);
break;
case "requiresLocation":
mainSubscriptionURL = decodeURIComponent(parts[1]);
break;
}
}
port.emit("subscribeLinkClick", {
title: title,
url: url,
mainSubscriptionTitle: mainSubscriptionTitle,
mainSubscriptionURL: mainSubscriptionURL
});
}
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