rsf-censorship-detector/index.js

/**
 * Get the current URL.
 *
 * @param {function(string)} callback - called when the URL of the current tab
 * is found.
 */
function getCurrentTabUrl(callback) {
	var queryInfo = {
		active: true,
		currentWindow: true
	};

	chrome.tabs.query(queryInfo, function(tabs) {
		var tab = tabs[0];
		var url = tab.url;
		console.assert(typeof url == 'string', 'tab.url should be a string');

		callback(url);
	});
}

// Redirect to mirror url
function takeMeTo(url) {
	updateProperties = {
			url: "https://" + url
	}
	chrome.tabs.update(updateProperties=updateProperties)
}

// Check if there's a mirror for the current URL. If so, display the message
// about it and the button to redirect to a random mirror (if there's more than
// one).
getCurrentTabUrl(function(url) {
	chrome.storage.local.get("sites", function(sites){
			sites = sites.sites
			// Grab the domain part of the URL
			domain = url.match(/:\/\/(www\.)?([^\/]+)\//).slice(-1)[0]
			if(domain in sites) {
					proxies = sites[domain]
					// Offer the user to redirect them to a mirror
					$("#mirror").css("display", "block")
					$("#nomirror").css("display", "none")
					$("#mirror button").on("click", function() {
							takeMeTo(proxies[Math.floor(Math.random()*proxies.length)])
					})
			}
			else {
					// Tell the user there's no mirror available
					$("#mirror").css("display", "none")
					$("#nomirror").css("display", "block")
			}
	})
})