Электронные библиотеки на работе и дома

function verifyUser($authCookieValue) {
	global $authCheckURL;
	global $authSuccessHTML;
	global $authCookieName;

	$result = false;
	$error = '';
	
	// create a new cURL resource
	$ch = curl_init();
	if ($ch !== false) {
		// set URL and other appropriate options
		$header = array();
		$header[] = 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8';
		$header[] = 'Accept-Language: en-US,en;q=0.5';
		$header[] = 'Connection: close';
		$header[] = 'DNT: 1';

		curl_setopt($ch, CURLOPT_URL, $authCheckURL);
		curl_setopt($ch, CURLOPT_HEADER, false);
		curl_setopt($ch, CURLOPT_USERAGENT, 'User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0');
		curl_setopt($ch, CURLOPT_COOKIESESSION, true);
		curl_setopt($ch, CURLOPT_COOKIE, $authCookieName.'='.$authCookieValue);
		curl_setopt($ch, CURLOPT_ENCODING, 'gzip,deflate');
		curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

		// grab URL and pass it to the browser
		$response = curl_exec($ch);

		if($response === false) {
			$error = curl_error($ch);
		} else {
			$result = strpos($response, $authSuccessHTML) !== false;
		}

		curl_close($ch);
	} else {
		$error = 'cannot initialize cURL';
	}
	
	return array(
			'succeeded' => $result,
			'error' => $error
	);
}

// proxy config
var PROXY_URL = 'http://university.org/~user/proxy.php?';
var PROXY_URL_QUERY = 'urlForProxy=';
var PROXY_ID_QUERY = 'idForProxy=';

// page search and modification const
var ACM_PDF_LINK_NAME = 'FullTextPDF';
var ACM_ARTICLE_ID_NAME = 'id';
var ACM_PURCHASE_LINK = 'https://dl.acm.org/purchase.cfm';
var ACM_QUERY_URL = 'http://dl.acm.org/ft_gateway.cfm';
var ACM_QUERY = 'id={0}';
var ACM_LINK = '<a name="' + ACM_PDF_LINK_NAME + '" title="FullText PDF" href="{0}" target="_blank"><img src="imagetypes/pdf_logo.gif" alt="PDF" class="fulltext_lnk" border="0">PDF</a> [proxy]';

// requests to the background page
var REQUEST_AUTH = 'auth';

function setACMLink() {
	var pdfLink = document.getElementsByName(ACM_PDF_LINK_NAME)[0];
	if (!pdfLink) {
		var i, id, param;
		var params = window.location.search.substr(1).split('&');
		for (i = 0; i < params.length; i++) {
			param = params[i].split('=');
			if (param[0] === ACM_ARTICLE_ID_NAME) {
				id = param[1].indexOf('.') > 0 ? param[1].split('.')[1] : param[1];
				break;
			}
		}

		if (id) {
			var link = PROXY_URL + ACM_QUERY.format(id) + '&' +
				PROXY_URL_QUERY + encodeURIComponent(ACM_QUERY_URL);

			// purchase link is a placeholder for a link to PDF
			var a, container;
			var links = document.getElementsByTagName('a');
			for (i = 0; i < links.length; i++) {
				a = links[i];
				if (a.href.indexOf(ACM_PURCHASE_LINK) === 0) {
					container = a.parentNode;
					container.innerHTML = ACM_LINK.format('#');
					setClick(container.childNodes[0], link);
					break;
				}
			}
		}
	}
}

function setClick(elem, link) {
	elem.addEventListener('click', function (e) {
		commPort.postMessage({name: REQUEST_AUTH, href: link});
		e.preventDefault();
		return false;
	});
}

// config
var AUTH_URL = 'https://university.org/intranet';
var AUTH_COOKIE = 'JSESSIONID';

// const
var REQUEST_AUTH = 'auth';

chrome.runtime.onConnect.addListener(function (port) {
	port.onMessage.addListener(function (request) {
		var answer = {toRequest: request.name};
		if (request.name === REQUEST_AUTH) {	// check the authorization on the select web-site
			answer.href = request.href;
			answer.result = false;
			answer.id = '';
			chrome.cookies.get({url: AUTH_URL, name: AUTH_COOKIE}, function (cookie) {
				if (cookie) {
					answer.result = true;
					answer.id = cookie.value;
				}
				port.postMessage(answer);
			});
		} 
	});
});

var commPort = chrome.runtime.connect();
commPort.onMessage.addListener(function (answer) {
	if (answer.toRequest === REQUEST_AUTH) {
		// add an authorization id, and send the request to to the proxy
		window.location = answer.href + '&' + PROXY_ID_QUERY + answer.id;
	} 
});

// config
$cookieDomain = '.university.org';
$cookiePath = '/~user';

$headerArray = explode("\r\n", $response['header']);

$js = '';
foreach ($headerArray as $headerLine) {
	if (strpos($destinationURL, 'ieee.org') !== false) {
		if (strpos($headerLine, 'Set-Cookie: ') !== false) {
			$cookieArray = explode(': ', $headerLine, 2);
			$headerLine = $cookieArray[0].': ';

			$cookieDataArray = explode('; ', $cookieArray[1]);
			$isFirstKey = true;
			$js .= '  document.cookie = "';
			foreach ($cookieDataArray as $cdKey => $cookieData) {
				list($cname, $cvalue) = array_merge(explode('=', $cookieData), array(''));
				if ($cname === 'domain') {
					$cvalue = $cookieDomain;
					$cookieDataArray[$cdKey] = $cname.'='.$cvalue;
				}
				if ($cname === 'path') {
					$cvalue = $cookiePath;
					$cookieDataArray[$cdKey] = $cname.'='.$cvalue;
				}
				$headerLine .= ($isFirstKey ? '' : '; ').$cookieDataArray[$cdKey];
				$js .= ($isFirstKey ? '' : '; ').$cookieDataArray[$cdKey];
				$isFirstKey = false;
			}
			$js .= "\";\r\n";
		}
		header($headerLine);

		if (strlen($js) > 0) {
			echo "\r\n<script>\r\n".$js.'</script>'; // insert JS code into the page to set IEEE session and identification cookies
		}
	} else {
		foreach ($headerArray as $headerLine) {
			header($headerLine);
		}
	}
}