Which Variable Holds The Destination Url ?

[phpsane]

Php Gurus,

 

 

I am trying to add a tracker onto a web proxy. A web proxy like:

http://anonymouse.org/cgi-bin/anon-www.cgi/http://forums.phpfreaks.com

 

I am currently using miniProxy on my local host. Now, I want to add it to my website. And log what my users (family) view.

 

Let us assume mymydomain.com is my domain. Now, my proxy's homepage would be this:

http://mymydomain.com/mini-proxy/index.php

 

And, the proxified pages url format would look like this:

http://mymydomain.com/mini-proxy/index.php?https://www.google.com

 

Actually, here is a site using the miniProxy php script. You may check it out:

https://miniproxy-php.appspot.com/index.php?

 

You know what I mean. You know how a web proxy and it's proxified page's url format comes as.

Now, what I want to do is add my tracker url onto all proxified links. Like so:

http://mymydomain.com/mini-proxy/URL_TRACKER.PHP?DESTINATIONURL

Example:

http://mymydomain.com/mini-proxy/url_tracker.php?https://www.google.com

 

 

Since miniProxy is a one page script, I know that I have to add the required php code (logging code) at the top of the script. And the tracker should use the GET method to grab the DESTINATION URL and log the DESTINATION URL onto the mysql tbl before forwarding the user to the DESTINATION.

Now, at this instant, I know how to add links onto mysql tbl. II know how to write the logging code. But, as of now, I just need your skillful help to find the right variable that deals with the destination url as I am at a little loss here. I need to identify the variable that holds the destination url. That way, I can just precede "url_tracker.php?" before the value (destination url) of the variable. And, rename the single file to "url_tracker.php".

So now, every proxified page would show links not as:

http://mymydomain.com/mini-proxy/index.php?https://www.DESTINATIONURL.com

But as:

http://mymydomain.com/mini-proxy/url_tracker.php?https://www.site1.com

http://mymydomain.com/mini-proxy/url_tracker.php?https://www.site2.com

And so on.

 

I am trying to finish this project that has come to a stand-still (it seems) over there for a few months:

https://www.daniweb.com/programming/web-development/threads/508632/where-to-precede-the-tracking-url

I am mentioning this link so you don't repeat yourself that has already been mentioned there. Here, let us continue from where they have LEFT-OFF over there. It seems they have failed to fix the "over logging issue". Let us see if we can fair better here than what they did over there.

 

Anyway, it seems the solution provided over there, by a user called Cereal, did half the job. His solution made miniProxy log the destination url or the url that got clicked alright but the hiccup was that, it also started logging every link (including imgs, banners, etc.) present on the proxified page. Those should not be logged.

So, let us say, you are viewing the google homepage via the miniProxy. In this case, the google homepage's link should be logged onto the MySql Db and not all the links present on the google homepage such as the google icon img link, google contactus link etc.

Any ideas how to fix this ? Any code sample provided would be most appreciated.

 

Remember:

1.  I need to know on which line on the miniProxy script to add my tracker url. On which variable's value.

2. Only the clicked url must be logged and not all links present on the proxified page that you clicked over to.

 

 

 

NOTE: If miniProxy is going to be too complicated to sort the issue of it to not log all links present on the proxified page then would it be easier to add the tracking url onto Php-Proxy instead ?

https://www.php-proxy.com/

 

However, Php-Proxy it seems, is not a one page script. And that might be tedious to work with.

If you have any better free, open source web proxy script that would be easier to deal with for this project then say so.

 

 

This is an interesting project and a good learning curve for a php beginner.

Thanks!

Edited August 27, 2017 by phpsane

[phpsane]

I forgot to provide the miniProxy script in my original post.

More about it:

https://github.com/joshdick/miniProxy

 

So, here it is the script:

 

MiniProxy Single Page Script:

 

	<?php
	/*
	miniProxy - A simple PHP web proxy. <https://github.com/joshdick/miniProxy>
	Written and maintained by Joshua Dick <http://joshdick.net>.
	miniProxy is licensed under the GNU GPL v3 <http://www.gnu.org/licenses/gpl.html>.
	*/
	/****************************** START CONFIGURATION ******************************/
	//To allow proxying any URL, set $whitelistPatterns to an empty array (the default).
	//To only allow proxying of specific URLs (whitelist), add corresponding regular expressions
	//to the $whitelistPatterns array. Enter the most specific patterns possible, to prevent possible abuse.
	//You can optionally use the "getHostnamePattern()" helper function to build a regular expression that
	//matches all URLs for a given hostname.
	$whitelistPatterns = array(
	//Usage example: To support any URL at example.net, including sub-domains, uncomment the
	//line below (which is equivalent to [ @^https?://([a-z0-9-]+\.)*example\.net@i ]):
	//getHostnamePattern("example.net")
	);
	//To enable CORS (cross-origin resource sharing) for proxied sites, set $forceCORS to true.
	$forceCORS = false;
	//URL that will be used as an example in the instructional text on the miniProxy landing page,
	//and that will be proxied when pressing the 'Proxy It!' button on the landing page
	//if the URL form is left blank.
	$exampleURL = 'https://example.net';
	/****************************** END CONFIGURATION ******************************/
	ob_start("ob_gzhandler");
	if (version_compare(PHP_VERSION, "5.4.7", "<")) {
	die("miniProxy requires PHP version 5.4.7 or later.");
	}
	if (!function_exists("curl_init")) die("miniProxy requires PHP's cURL extension. Please install/enable it on your server and try again.");
	//Helper function for use inside $whitelistPatterns.
	//Returns a regex that matches all HTTP[S] URLs for a given hostname.
	function getHostnamePattern($hostname) {
	$escapedHostname = str_replace(".", "\.", $hostname);
	return "@^https?://([a-z0-9-]+\.)*" . $escapedHostname . "@i";
	}
	//Helper function used to removes/unset keys from an associative array using case insensitive matching
	function removeKeys(&$assoc, $keys2remove) {
	$keys = array_keys($assoc);
	$map = array();
	foreach ($keys as $key) {
	$map[strtolower($key)] = $key;
	}
	foreach ($keys2remove as $key) {
	$key = strtolower($key);
	if (isset($map[$key])) {
	unset($assoc[$map[$key]]);
	}
	}
	}
	if (!function_exists("getallheaders")) {
	//Adapted from http://www.php.net/manual/en/function.getallheaders.php#99814
	function getallheaders() {
	$result = array();
	foreach($_SERVER as $key => $value) {
	if (substr($key, 0, 5) == "HTTP_") {
	$key = str_replace(" ", "-", ucwords(strtolower(str_replace("_", " ", substr($key, 5)))));
	$result[$key] = $value;
	}
	}
	return $result;
	}
	}
	$usingDefaultPort = (!isset($_SERVER["HTTPS"]) && $_SERVER["SERVER_PORT"] === 80) || (isset($_SERVER["HTTPS"]) && $_SERVER["SERVER_PORT"] === 443);
	$prefixPort = $usingDefaultPort ? "" : ":" . $_SERVER["SERVER_PORT"];
	//Use HTTP_HOST to support client-configured DNS (instead of SERVER_NAME), but remove the port if one is present
	$prefixHost = $_SERVER["HTTP_HOST"];
	$prefixHost = strpos($prefixHost, ":") ? implode(":", explode(":", $_SERVER["HTTP_HOST"], -1)) : $prefixHost;
	define("PROXY_PREFIX", "http" . (isset($_SERVER["HTTPS"]) ? "s" : "") . "://" . $prefixHost . $prefixPort . $_SERVER["SCRIPT_NAME"] . "?");
	//Makes an HTTP request via cURL, using request data that was passed directly to this script.
	function makeRequest($url) {
	//Tell cURL to make the request using the brower's user-agent if there is one, or a fallback user-agent otherwise.
	$user_agent = $_SERVER["HTTP_USER_AGENT"];
	if (empty($user_agent)) {
	$user_agent = "Mozilla/5.0 (compatible; miniProxy)";
	}
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_USERAGENT, $user_agent);
	//Get ready to proxy the browser's request headers...
	$browserRequestHeaders = getallheaders();
	//...but let cURL set some headers on its own.
	removeKeys($browserRequestHeaders, array(
	"Host",
	"Content-Length",
	"Accept-Encoding" //Throw away the browser's Accept-Encoding header if any and let cURL make the request using gzip if possible.
	));
	curl_setopt($ch, CURLOPT_ENCODING, "");
	//Transform the associative array from getallheaders() into an
	//indexed array of header strings to be passed to cURL.
	$curlRequestHeaders = array();
	foreach ($browserRequestHeaders as $name => $value) {
	$curlRequestHeaders[] = $name . ": " . $value;
	}
	curl_setopt($ch, CURLOPT_HTTPHEADER, $curlRequestHeaders);
	//Proxy any received GET/POST/PUT data.
	switch ($_SERVER["REQUEST_METHOD"]) {
	case "POST":
	curl_setopt($ch, CURLOPT_POST, true);
	//For some reason, $HTTP_RAW_POST_DATA isn't working as documented at
	//http://php.net/manual/en/reserved.variables.httprawpostdata.php
	//but the php://input method works. This is likely to be flaky
	//across different server environments.
	//More info here: http://stackoverflow.com/questions/8899239/http-raw-post-data-not-being-populated-after-upgrade-to-php-5-3
	//If the miniProxyFormAction field appears in the POST data, remove it so the destination server doesn't receive it.
	$postData = Array();
	parse_str(file_get_contents("php://input"), $postData);
	if (isset($postData["miniProxyFormAction"])) {
	unset($postData["miniProxyFormAction"]);
	}
	curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($postData));
	break;
	case "PUT":
	curl_setopt($ch, CURLOPT_PUT, true);
	curl_setopt($ch, CURLOPT_INFILE, fopen("php://input", "r"));
	break;
	}
	//Other cURL options.
	curl_setopt($ch, CURLOPT_HEADER, true);
	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	//Set the request URL.
	curl_setopt($ch, CURLOPT_URL, $url);
	//Make the request.
	$response = curl_exec($ch);
	$responseInfo = curl_getinfo($ch);
	$headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
	curl_close($ch);
	//Setting CURLOPT_HEADER to true above forces the response headers and body
	//to be output together--separate them.
	$responseHeaders = substr($response, 0, $headerSize);
	$responseBody = substr($response, $headerSize);
	return array("headers" => $responseHeaders, "body" => $responseBody, "responseInfo" => $responseInfo);
	}
	//Converts relative URLs to absolute ones, given a base URL.
	//Modified version of code found at http://nashruddin.com/PHP_Script_for_Converting_Relative_to_Absolute_URL
	function rel2abs($rel, $base) {
	if (empty($rel)) $rel = ".";
	if (parse_url($rel, PHP_URL_SCHEME) != "" || strpos($rel, "//") === 0) return $rel; //Return if already an absolute URL
	if ($rel[0] == "#" || $rel[0] == "?") return $base.$rel; //Queries and anchors
	extract(parse_url($base)); //Parse base URL and convert to local variables: $scheme, $host, $path
	$path = isset($path) ? preg_replace("#/[^/]*$#", "", $path) : "/"; //Remove non-directory element from path
	if ($rel[0] == "/") $path = ""; //Destroy path if relative url points to root
	$port = isset($port) && $port != 80 ? ":" . $port : "";
	$auth = "";
	if (isset($user)) {
	$auth = $user;
	if (isset($pass)) {
	$auth .= ":" . $pass;
	}
	$auth .= "@";
	}
	$abs = "$auth$host$port$path/$rel"; //Dirty absolute URL
	for ($n = 1; $n > 0; $abs = preg_replace(array("#(/\.?/)#", "#/(?!\.\.)[^/]+/\.\./#"), "/", $abs, -1, $n)) {} //Replace '//' or '/./' or '/foo/../' with '/'
	return $scheme . "://" . $abs; //Absolute URL is ready.
	}
	//Proxify contents of url() references in blocks of CSS text.
	function proxifyCSS($css, $baseURL) {
	// Add a "url()" wrapper to any CSS @import rules that only specify a URL without the wrapper,
	// so that they're proxified when searching for "url()" wrappers below.
	$sourceLines = explode("\n", $css);
	$normalizedLines = [];
	foreach ($sourceLines as $line) {
	if (preg_match("/@import\s+url/i", $line)) {
	$normalizedLines[] = $line;
	} else {
	$normalizedLines[] = preg_replace_callback(
	"/(@import\s+)([^;\s]+)([\s;])/i",
	function($matches) use ($baseURL) {
	return $matches[1] . "url(" . $matches[2] . ")" . $matches[3];
	},
	$line);
	}
	}
	$normalizedCSS = implode("\n", $normalizedLines);
	return preg_replace_callback(
	"/url\((.*?)\)/i",
	function($matches) use ($baseURL) {
	$url = $matches[1];
	//Remove any surrounding single or double quotes from the URL so it can be passed to rel2abs - the quotes are optional in CSS
	//Assume that if there is a leading quote then there should be a trailing quote, so just use trim() to remove them
	if (strpos($url, "'") === 0) {
	$url = trim($url, "'");
	}
	if (strpos($url, "\"") === 0) {
	$url = trim($url, "\"");
	}
	if (stripos($url, "data:") === 0) return "url(" . $url . ")"; //The URL isn't an HTTP URL but is actual binary data. Don't proxify it.
	return "url(" . PROXY_PREFIX . rel2abs($url, $baseURL) . ")";
	},
	$normalizedCSS);
	}
	//Proxify "srcset" attributes (normally associated with <img> tags.)
	function proxifySrcset($srcset, $baseURL) {
	$sources = array_map("trim", explode(",", $srcset)); //Split all contents by comma and trim each value
	$proxifiedSources = array_map(function($source) use ($baseURL) {
	$components = array_map("trim", str_split($source, strrpos($source, " "))); //Split by last space and trim
	$components[0] = PROXY_PREFIX . rel2abs(ltrim($components[0], "/"), $baseURL); //First component of the split source string should be an image URL; proxify it
	return implode($components, " "); //Recombine the components into a single source
	}, $sources);
	$proxifiedSrcset = implode(", ", $proxifiedSources); //Recombine the sources into a single "srcset"
	return $proxifiedSrcset;
	}
	//Extract and sanitize the requested URL, handling cases where forms have been rewritten to point to the proxy.
	if (isset($_POST["miniProxyFormAction"])) {
	$url = $_POST["miniProxyFormAction"];
	unset($_POST["miniProxyFormAction"]);
	} else {
	$queryParams = Array();
	parse_str($_SERVER["QUERY_STRING"], $queryParams);
	//If the miniProxyFormAction field appears in the query string, make $url start with its value, and rebuild the the query string without it.
	if (isset($queryParams["miniProxyFormAction"])) {
	$formAction = $queryParams["miniProxyFormAction"];
	unset($queryParams["miniProxyFormAction"]);
	$url = $formAction . "?" . http_build_query($queryParams);
	} else {
	$url = substr($_SERVER["REQUEST_URI"], strlen($_SERVER["SCRIPT_NAME"]) + 1);
	}
	}
	if (empty($url)) {
	die("<html><head><title>miniProxy</title></head><body><h1>Welcome to miniProxy!</h1>miniProxy can be directly invoked like this: <a href=\"" . PROXY_PREFIX . $exampleURL . "\">" . PROXY_PREFIX . $exampleURL . "</a><br /><br />Or, you can simply enter a URL below:<br /><br /><form onsubmit=\"if (document.getElementById('site').value) { window.location.href='" . PROXY_PREFIX . "' + document.getElementById('site').value; return false; } else { window.location.href='" . PROXY_PREFIX . $exampleURL . "'; return false; } \"><input id=\"site\" type=\"text\" size=\"50\" /><input type=\"submit\" value=\"Proxy It!\" /></form></body></html>");
	} else if (strpos($url, ":/") !== strpos($url, "://")) {
	//Work around the fact that some web servers (e.g. IIS 8.5) change double slashes appearing in the URL to a single slash.
	//See https://github.com/joshdick/miniProxy/pull/14
	$pos = strpos($url, ":/");
	$url = substr_replace($url, "://", $pos, strlen(":/"));
	}
	$scheme = parse_url($url, PHP_URL_SCHEME);
	if (empty($scheme)) {
	//Assume that any supplied URLs starting with // are HTTP URLs.
	if (strpos($url, "//") === 0) {
	$url = "http:" . $url;
	}
	} else if (!preg_match("/^https?$/i", $scheme)) {
	die('Error: Detected a "' . $scheme . '" URL. miniProxy exclusively supports http[s] URLs.');
	}
	//Validate the requested URL against the whitelist.
	$urlIsValid = count($whitelistPatterns) === 0;
	foreach ($whitelistPatterns as $pattern) {
	if (preg_match($pattern, $url)) {
	$urlIsValid = true;
	break;
	}
	}
	if (!$urlIsValid) {
	die("Error: The requested URL was disallowed by the server administrator.");
	}
	$response = makeRequest($url);
	$rawResponseHeaders = $response["headers"];
	$responseBody = $response["body"];
	$responseInfo = $response["responseInfo"];
	//If CURLOPT_FOLLOWLOCATION landed the proxy at a diferent URL than
	//what was requested, explicitly redirect the proxy there.
	$responseURL = $responseInfo["url"];
	if ($responseURL !== $url) {
	header("Location: " . PROXY_PREFIX . $responseURL, true);
	exit(0);
	}
	//A regex that indicates which server response headers should be stripped out of the proxified response.
	$header_blacklist_pattern = "/^Content-Length|^Transfer-Encoding|^Content-Encoding.*gzip/i";
	//cURL can make multiple requests internally (for example, if CURLOPT_FOLLOWLOCATION is enabled), and reports
	//headers for every request it makes. Only proxy the last set of received response headers,
	//corresponding to the final request made by cURL for any given call to makeRequest().
	$responseHeaderBlocks = array_filter(explode("\r\n\r\n", $rawResponseHeaders));
	$lastHeaderBlock = end($responseHeaderBlocks);
	$headerLines = explode("\r\n", $lastHeaderBlock);
	foreach ($headerLines as $header) {
	$header = trim($header);
	if (!preg_match($header_blacklist_pattern, $header)) {
	header($header, false);
	}
	}
	//Prevent robots from indexing proxified pages
	header("X-Robots-Tag: noindex, nofollow", true);
	if ($forceCORS) {
	//This logic is based on code found at: http://stackoverflow.com/a/9866124/278810
	//CORS headers sent below may conflict with CORS headers from the original response,
	//so these headers are sent after the original response headers to ensure their values
	//are the ones that actually end up getting sent to the browser.
	//Explicit [ $replace = true ] is used for these headers even though this is PHP's default behavior.
	//Allow access from any origin.
	header("Access-Control-Allow-Origin: *", true);
	header("Access-Control-Allow-Credentials: true", true);
	//Handle CORS headers received during OPTIONS requests.
	if ($_SERVER["REQUEST_METHOD"] == "OPTIONS") {
	if (isset($_SERVER["HTTP_ACCESS_CONTROL_REQUEST_METHOD"])) {
	header("Access-Control-Allow-Methods: GET, POST, OPTIONS", true);
	}
	if (isset($_SERVER["HTTP_ACCESS_CONTROL_REQUEST_HEADERS"])) {
	header("Access-Control-Allow-Headers: {$_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']}", true);
	}
	//No further action is needed for OPTIONS requests.
	exit(0);
	}
	}
	$contentType = "";
	if (isset($responseInfo["content_type"])) $contentType = $responseInfo["content_type"];
	//This is presumably a web page, so attempt to proxify the DOM.
	if (stripos($contentType, "text/html") !== false) {
	//Attempt to normalize character encoding.
	$detectedEncoding = mb_detect_encoding($responseBody, "UTF-8, ISO-8859-1");
	if ($detectedEncoding) {
	$responseBody = mb_convert_encoding($responseBody, "HTML-ENTITIES", $detectedEncoding);
	}
	//Parse the DOM.
	$doc = new DomDocument();
	@$doc->loadHTML($responseBody);
	$xpath = new DOMXPath($doc);
	//Rewrite forms so that their actions point back to the proxy.
	foreach($xpath->query("//form") as $form) {
	$method = $form->getAttribute("method");
	$action = $form->getAttribute("action");
	//If the form doesn't have an action, the action is the page itself.
	//Otherwise, change an existing action to an absolute version.
	$action = empty($action) ? $url : rel2abs($action, $url);
	//Rewrite the form action to point back at the proxy.
	$form->setAttribute("action", rtrim(PROXY_PREFIX, "?"));
	//Add a hidden form field that the proxy can later use to retreive the original form action.
	$actionInput = $doc->createDocumentFragment();
	$actionInput->appendXML('<input type="hidden" name="miniProxyFormAction" value="' . htmlspecialchars($action) . '" />');
	$form->appendChild($actionInput);
	}
	//Proxify <meta> tags with an 'http-equiv="refresh"' attribute.
	foreach ($xpath->query("//meta[@http-equiv]") as $element) {
	if (strcasecmp($element->getAttribute("http-equiv"), "refresh") === 0) {
	$content = $element->getAttribute("content");
	if (!empty($content)) {
	$splitContent = preg_split("/=/", $content);
	if (isset($splitContent[1])) {
	$element->setAttribute("content", $splitContent[0] . "=" . PROXY_PREFIX . rel2abs($splitContent[1], $url));
	}
	}
	}
	}
	//Profixy <style> tags.
	foreach($xpath->query("//style") as $style) {
	$style->nodeValue = proxifyCSS($style->nodeValue, $url);
	}
	//Proxify tags with a "style" attribute.
	foreach ($xpath->query("//*[@style]") as $element) {
	$element->setAttribute("style", proxifyCSS($element->getAttribute("style"), $url));
	}
	//Proxify "srcset" attributes in <img> tags.
	foreach ($xpath->query("//img[@srcset]") as $element) {
	$element->setAttribute("srcset", proxifySrcset($element->getAttribute("srcset"), $url));
	}
	//Proxify any of these attributes appearing in any tag.
	$proxifyAttributes = array("href", "src");
	foreach($proxifyAttributes as $attrName) {
	foreach($xpath->query("//*[@" . $attrName . "]") as $element) { //For every element with the given attribute...
	$attrContent = $element->getAttribute($attrName);
	if ($attrName == "href" && preg_match("/^(about|javascript|magnet|mailto):/i", $attrContent)) continue;
	$attrContent = rel2abs($attrContent, $url);
	$attrContent = PROXY_PREFIX . $attrContent;
	$element->setAttribute($attrName, $attrContent);
	}
	}
	//Attempt to force AJAX requests to be made through the proxy by
	//wrapping window.XMLHttpRequest.prototype.open in order to make
	//all request URLs absolute and point back to the proxy.
	//The rel2abs() JavaScript function serves the same purpose as the server-side one in this file,
	//but is used in the browser to ensure all AJAX request URLs are absolute and not relative.
	//Uses code from these sources:
	//http://stackoverflow.com/questions/7775767/javascript-overriding-xmlhttprequest-open
	//https://gist.github.com/1088850
	//TODO: This is obviously only useful for browsers that use XMLHttpRequest but
	//it's better than nothing.
	$head = $xpath->query("//head")->item(0);
	$body = $xpath->query("//body")->item(0);
	$prependElem = $head != NULL ? $head : $body;
	//Only bother trying to apply this hack if the DOM has a <head> or <body> element;
	//insert some JavaScript at the top of whichever is available first.
	//Protects against cases where the server sends a Content-Type of "text/html" when
	//what's coming back is most likely not actually HTML.
	//TODO: Do this check before attempting to do any sort of DOM parsing?
	if ($prependElem != NULL) {
	$scriptElem = $doc->createElement("script",
	'(function() {
	if (window.XMLHttpRequest) {
	function parseURI(url) {
	var m = String(url).replace(/^\s+|\s+$/g, "").match(/^([^:\/?#]+?(\/\/(?:[^:@]*(?::[^:@]*)?@)?(([^:\/?#]*)(?:\d*))?))?([^?#]*)(\?[^#]*)?(#[\s\S]*)?/);
	// authority = "//" + user + ":" + pass "@" + hostname + ":" port
	return (m ? {
	href : m[0] || "",
	protocol : m[1] || "",
	authority: m[2] || "",
	host : m[3] || "",
	hostname : m[4] || "",
	port : m[5] || "",
	pathname : m[6] || "",
	search : m[7] || "",
	hash : m[8] || ""
	} : null);
	}
	function rel2abs(base, href) { // RFC 3986
	function removeDotSegments(input) {
	var output = [];
	input.replace(/^(\.\.?(\/|$))+/, "")
	.replace(/\/(\.(\/|$))+/g, "/")
	.replace(/\/\.\.$/, "/../")
	.replace(/\/?[^\/]*/g, function (p) {
	if (p === "/..") {
	output.pop();
	} else {
	output.push(p);
	}
	});
	return output.join("").replace(/^\//, input.charAt(0) === "/" ? "/" : "");
	}
	href = parseURI(href || "");
	base = parseURI(base || "");
	return !href || !base ? null : (href.protocol || base.protocol) +
	(href.protocol || href.authority ? href.authority : base.authority) +
	removeDotSegments(href.protocol || href.authority || href.pathname.charAt(0) === "/" ? href.pathname : (href.pathname ? ((base.authority && !base.pathname ? "/" : "") + base.pathname.slice(0, base.pathname.lastIndexOf("/") + 1) + href.pathname) : base.pathname)) +
	(href.protocol || href.authority || href.pathname ? href.search : (href.search || base.search)) +
	href.hash;
	}
	var proxied = window.XMLHttpRequest.prototype.open;
	window.XMLHttpRequest.prototype.open = function() {
	if (arguments[1] !== null && arguments[1] !== undefined) {
	var url = arguments[1];
	url = rel2abs("' . $url . '", url);
	url = "' . PROXY_PREFIX . '" + url;
	arguments[1] = url;
	}
	return proxied.apply(this, [].slice.call(arguments));
	};
	}
	})();'
	);
	$scriptElem->setAttribute("type", "text/javascript");
	$prependElem->insertBefore($scriptElem, $prependElem->firstChild);
	}
	echo "<!-- Proxified page constructed by miniProxy -->\n" . $doc->saveHTML();
	} else if (stripos($contentType, "text/css") !== false) { //This is CSS, so proxify url() references.
	echo proxifyCSS($responseBody, $url);
	} else { //This isn't a web page or CSS, so serve unmodified through the proxy with the correct headers (images, JavaScript, etc.)
	header("Content-Length: " . strlen($responseBody), true);
	echo $responseBody;
	}
?>
	 

Edited August 27, 2017 by phpsane

[phpsane]

Mmm. No idea, anyone ?

[phpsane]

I added the following tracker code after line 333.

The 333 line went like this:

 

if (stripos($contentType, "text/html") !== false) {

 

 

//DUMP THE CURRENT PAGE'S URL INTO MYSQL DB.
$conn = mysqli_connect("localhost", "root", "", "DB NAME");
if (!$conn) {
// message to use in development to see errors
die("Database error : " . mysqli_error($conn));
// user friendly message
// die("Database error.");
exit();
}
// Dump $url into db
$stmt = mysqli_prepare($conn, "INSERT INTO users(browsings_histories) VALUES (?)");
mysqli_stmt_bind_param($stmt, 's', $url);
mysqli_stmt_execute($stmt);
if($stmt)
{
    echo "Logged $url to db a success!";
}
else    
{
    echo "Logging $url to db failed!";
}

 

It seems to be working. The web proxy user's viewed url is now being logged into my mysql db.

But, I need some pros confirmation that I am doing things the right way.

 

Thanks