├── README.md
└── statusCakeMonitor.rename.me.php


/README.md:
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 1 | StatusCake-CloudFlare
 2 | =====================
 3 | 
 4 | Using Statuscake's monitoring and Cloudflare to achieve high availability.
 5 | 
 6 | A PHP web hook to handle down notifications from Statuscake. If a Down notification is received, it'll change the A record of a domain on cloudflare to a backup IP set by you.
 7 | 
 8 | <br><br>
 9 | License: MIT<br>
10 | Dependencies: Web Server, PHP, php-curl lib
11 | <br><br>
12 | 
13 | Setup: <br>
14 | 1. I suggest you rename the php file to something obscure. <br>
15 | 2. Add / change the global vars section. It consists of credentials and other information that needs to be modified to your needs. <br>
16 | 3. Upload this script to the desired server, make sure the script is accessible via the internet. <br>
17 | 4. On StatusCake: <br>
18 | 	Go into group contacts and add the ping URL. This URL is the URL of your PHP script that you just uploaded to your server in step 3.<br>
19 | 	Make sure the domains you're monitoring has the correct contact group (a group that contains the ping URL).
20 | 5. It's recommended that you have more than the PHP script as an alert type, so you can switch it back to the primary server once it's up. With this setup, a website shouldn't have a downtime of more than ~6 minutes, assuming your DNS provider does not cache queries.
21 | <br><br>
22 | You can reach me on <a href="http://twitter.com/blackdotsh/"> twitter </a>.
23 | <br><br>
24 | If you're looking for UptimeRobot + Cloudflare, you can find it <a href="https://github.com/blackdotsh/UptimeFlare"> here </a>.
25 | 
26 | 


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/statusCakeMonitor.rename.me.php:
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  1 | <?php
  2 | // created by blackdotsh @ github
  3 | // MIT Licnese
  4 | 
  5 | 
  6 | //global vars
  7 | $SS_key=""; // your statuscake key
  8 | $SS_username=""; // your statuscake username
  9 | 
 10 | 
 11 | /*$CF_domains expects an associated array with domain as key;
 12 | 
 13 | backup IP,
 14 | 1 to proxy through cloudflare 0 otherwise
 15 | as value
 16 | 
 17 | for example:
 18 | $CF_domains = array( "google.com" => "8.8.8.8,1" );
 19 | 
 20 | sets the domain google.com's backup IP adress to 8.8.8.8 and enabling cloudflare proxy (orange cloud)
 21 | 
 22 | */
 23 | 
 24 | $CF_domains = array(
 25 | 			"google.com" => "8.8.8.8,0",
 26 | 			"www.google.com" => "8.8.4.4,1"
 27 | 		);
 28 | 
 29 | //API key to your cloudflare account
 30 | $CF_key = "";
 31 | 
 32 | //Cloudflare email address
 33 | $CF_email= "";
 34 | 
 35 | 
 36 | //end of global vars
 37 | //////////////////////////////////////////////////////////
 38 | //global functions
 39 | 
 40 | //checks if the domain exists in $CF_domains and that it's up via HTTP
 41 | function checkDomain ($domains, $domain){
 42 | 	foreach ( $domains as $key => $value ){
 43 | 		if (strcmp($key, $domain) == 0 ){
 44 | 			$vars=explode(",",$domains["$domain"]);
 45 | 			$ip=$vars[0];
 46 | 			if (checkHost($ip)) {
 47 | 				return true;
 48 | 			} else {
 49 | 				echo "backup server unreachable via HTTP\n";
 50 | 				return false;
 51 | 			}
 52 | 		}
 53 | 	}
 54 | 	return false;
 55 | }
 56 | 
 57 | 
 58 | //checks if host returns "HTTP/1.1 200 OK" within a reasonable time frame
 59 | function checkHost ($host) {
 60 | 	$ch = curl_init();
 61 | 	curl_setopt($ch, CURLOPT_URL, $host);
 62 | 	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 63 | 	//curl_setopt($ch, CURLOPT_VERBOSE, 1);
 64 | 	curl_setopt($ch, CURLOPT_HEADER, 1);
 65 | 	curl_setopt($ch,CURLOPT_TIMEOUT,5);
 66 | 	$result=curl_exec($ch);
 67 | 
 68 | 	$headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
 69 | 	$header = substr($result, 0, $headerSize);
 70 | 	if (strpos($header, "HTTP/1.1 200 OK") !== false){
 71 | 		return TRUE;	
 72 | 	} else {
 73 | 		return FALSE;
 74 | 	}
 75 | 
 76 | }
 77 | 
 78 | //interacts with CF API to switch to the backup IP
 79 | function cfBkup ($domains, $domain, $subdomain, $cfkey, $cfemail){
 80 | 	$vars=explode(",",$domains["$subdomain"]);
 81 | 	//get DNSID
 82 | 	$ch= curl_init("https://www.cloudflare.com/api_json.html");
 83 | 	curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
 84 | 	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
 85 | 	$postVars= array('a' => 'rec_load_all', 'tkn' => "$cfkey", 'email' => "$cfemail", 'z' => "$domain");
 86 | 	curl_setopt($ch, CURLOPT_POST, 1);
 87 | 	curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($postVars));
 88 | 	$results= json_decode(curl_exec($ch), TRUE);
 89 | 	curl_close($ch);
 90 | //	var_dump ($results);
 91 | 	$dnsList=$results['response']['recs']['objs'];
 92 | //	var_dump ($dnsList);	
 93 | 	$DNSID="";
 94 | 	for ($i=0; $i < sizeof($dnsList); $i++){
 95 | 		if ( strcmp($dnsList[$i]['name'], $subdomain) == 0 && strcmp($dnsList[$i]['type'], "A") == 0 ){
 96 | 			$DNSID=$dnsList[$i]['rec_id'];
 97 | 			break;
 98 | 		}  	
 99 | 	}
100 | 	if (strcmp($DNSID, "" )!= 0){
101 | //		echo "DNSID: ".$DNSID;
102 | 		$ch= curl_init("https://www.cloudflare.com/api_json.html");
103 |         	curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
104 |         	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
105 | 		$postVars=array ('a' => "rec_edit", 'tkn' => "$cfkey", 'id' => "$DNSID", 'email' => "$cfemail", 
106 | 			'z' => "$domain", 'type' => "A", 'name' => "$subdomain", 'content' => "$vars[0]", 'service_mode' => "$vars[1]", 'ttl' => "1");
107 | 		curl_setopt($ch, CURLOPT_POST, 1);
108 | 		curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($postVars));
109 | 		$results= json_decode(curl_exec($ch), TRUE);
110 | 		//var_dump ($results);
111 | 		
112 | 		$result=$results['result'];
113 | 		echo "result:".$result;
114 | 		if (strcmp($result, "success") != 0){
115 | 			echo "an error occured in record edit for domain: ".$subdomain;
116 | 		} else {
117 | 			//maybe write some logs saying it's successful or some sort of notification saying the record has been changed
118 | 		}
119 | 	} else { echo "error in finding DNSID"; };
120 | }
121 | 
122 | //end of global functions
123 | ////////////////////////////////////////////////////////
124 | 
125 | if (strcmp(md5($SS_username.$SS_key),$token) != 0){
126 | 	//header('Location:  http://speedtest.tele2.net/1000GB.zip');
127 | 	echo "token validation failed";
128 | 	die;
129 | }
130 | 
131 | if (!empty($_POST['URL']) && !empty($_POST['Status'])){
132 | 	//strip http://
133 | 	$checkDomain=str_replace("http://","",urldecode($_POST['URL']));
134 | 
135 | 	echo "checkdomain: ".$checkDomain."\n\n";
136 | 	//check to see if $checkURL is in the $CF_domain list and make sure it's a down alert
137 | 	if ( checkDomain($CF_domains, $checkDomain) && strcmp($_POST['Status'], "Down") == 0){
138 | 		//do more stuff here for subdomains
139 | 		$FQDN=explode(".",$checkDomain);
140 | 		$FQDN=$FQDN[sizeof($FQDN)-2].".".$FQDN[sizeof($FQDN)-1];
141 | 		
142 | 		//if your FQDN is seperated by 2 periods (ex: something.co.uk), uncomment the line below
143 |                 // $FQDN=$FQDN[sizeof($FQDN)-3].".".$FQDN[sizeof($FQDN)-2].".".$FQDN[sizeof($FQDN)-1];
144 | 
145 | 		echo $FQDN;
146 | 		cfBkup ($CF_domains, $FQDN, $checkDomain, $CF_key, $CF_email);
147 | 	} else { echo "invalid url, alert type, or the backup server is unreachable";};
148 | }else {echo "missing required post variables";}
149 | 


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