Follow changes to allow CW links.

README.md

@@ -53,6 +53,20 @@ To follow tickets and get updates whenever they're updated, use cwslack-follow.p
 9. Modify the config.php file with your companies values, Full configuration info below.
 10. Test it in Slack!
 
+To enable ConnectWise link to follow and unfollow a ticket:
+
+1. Open Setup Tables in ConnectWise.
+2. Open the "Links" table.
+3. Create a new Link referencing "Service"
+4. Set the Link Name to "Slack Follow"
+5. Set the Link Definition to https://yourdomain.tld/cwslack-follow.php?memberid=[memberid]&srnumber=[srnumber]&method=follow
+6. Create a new Link referencing "Service"
+7. Set the Link Name to "Slack Unfollow"
+8. Set the Link Definition to https://yourdomain.tld/cwslack-follow.php?memberid=[memberid]&srnumber=[srnumber]&method=unfollow
+9. Change the "method" on these links to whatever you set your $followtoken and $unfollowtoken to in config.php.
+10. Test the links!
+
+
 ## cwslack-incoming.php
 
 1. Download the cwslack-incoming.php file and config.php file.
@@ -106,6 +120,8 @@ To follow tickets and get updates whenever they're updated, use cwslack-follow.p
 * $slackfollowtoken # : Set to the token you got when creating a new slash command integration in Slack for /follow.
 * $followenabled # : Defaults to 0, you need to change this to 1 if you want to enable follow.
 * $dir # : Directory on the server to store files. Please note that the user running php (www-data in Linux) needs write/read access to this folder.
+* $followtoken : Change to any value and use this in the ConnectWise link tables.
+* $unfollowtoken : Change to any value and use this in the ConnectWise link tables.
 * $helpurl : Set to a help document explaining the slash command usage. Feel free to point to this GitHub repo, but ideally you would make it look pretty on your own internal site.
 
 # Command Usage

config.php

@@ -49,7 +49,8 @@
 $slackfollowtoken = "Slack Token Here"; //Set your token for the follow slash command
 $followenabled=0; //When set to 1, follow commands and the follow scripts will be enabled.
 $dir="/var/www/storage/"; //Needs to be set to a directory writeable by PHP for storage of the storage.txt file.
-
+$followtoken="follow"; //Change to random text to be used in your CW follow link if you use it. Defaults to follow which is fine for testing.
+$unfollowtoken="unfollow"; //Change to random text to be used in your CW unfollow link if you use it. Defaults to unfollow which is fine for testing.
 
 //Change optional
 $helpurl = "https://github.com/jundis/CWSlack-SlashCommands"; //Set your help article URL here.

cwslack-follow.php

@@ -21,10 +21,16 @@
 header('Content-Type: application/json'); //Set the header to return JSON, required by Slack
 require_once 'config.php';
 
-if(empty($_GET['token']) || ($_GET['token'] != $slackfollowtoken)) die; //If Slack token is not correct, kill the connection. This allows only Slack to access the page for security purposes.
-if(empty($_GET['text'])) die; //If there is no text added, kill the connection.
+$link=0;
 
-$exploded = explode(" ",$_GET['text']); //Explode the string attached to the slash command for use in variables.
+if(empty($_GET['method']) || ($_GET['method'] != $followtoken && $_GET['method'] != $unfollowtoken)){
+	if(empty($_GET['token']) || $_GET['token'] != $slackfollowtoken) die; //If Slack token is not correct, kill the connection. This allows only Slack to access the page for security purposes.
+	if(empty($_GET['text'])) die; //If there is no text added, kill the connection.
+
+	$exploded = explode(" ",$_GET['text']); //Explode the string attached to the slash command for use in variables.
+} else {
+	$link=1;
+}
 
 //File Handling block
 if(file_exists($dir."storage.txt")) //Check if storage file exists.
@@ -39,7 +45,7 @@
 }
 
 //Check for command errors.
-if(!is_numeric($exploded[0])) {
+if($link==0 && !is_numeric($exploded[0])) {
 	//Check to see if the first command in the text array is actually help, if so redirect to help webpage detailing slash command use.
 	if ($exploded[0]=="help") {
 		$test=json_encode(array("parse" => "full", "response_type" => "in_channel","text" => "Please visit " . $helpurl . " for more help information","mrkdwn"=>true));
@@ -53,13 +59,33 @@
 	}; 
 }
 
-$ticketnumber = $exploded[0]; //Read ticket number to variable for convenience.
-$username = $_GET['user_name']; //Read Slack username to variable for convenience.
 $command=NULL; //Set a null command variable, so it has something set no matter what.
 
-if (array_key_exists(1,$exploded)) //If a second string exists in the slash command array, make it the command.
+if($link==0){
+	$ticketnumber = $exploded[0]; //Read ticket number to variable for convenience.
+	$username = $_GET['user_name']; //Read Slack username to variable for convenience.
+
+	if (array_key_exists(1,$exploded)) //If a second string exists in the slash command array, make it the command.
+	{
+		$command = $exploded[1];
+	}
+} 
+else 
 {
-	$command = $exploded[1];
+	$ticketnumber = $_GET['srnumber'];
+	$username = $_GET['memberid'];
+	if($_GET['method']==$followtoken)
+	{
+		//For future use.
+	} 
+	else if ($_GET['method']==$unfollowtoken)
+	{
+		$command="unfollow"; //Set command to unfollow if it matches the CW unfollowtoken
+	}
+	else
+	{
+		die; //If matches neither token, die.
+	}
 }
 
 if($command=="unfollow") //If unfollow is set in the text received from Slack.
@@ -82,10 +108,11 @@
 			}
 			else //If the ticket number and username match.
 			{
-				echo "Unfollowed ticket #" .$ticketnumber; //Return text to Slack and do not output this line.
+				//Do not output this line.
 			}
 		}
 	}
+	echo "Unfollowed ticket #" .$ticketnumber; //Return text to Slack
 	$out = implode("\n",$output); //Implode all lines.
 	file_put_contents($dir."/storage.txt",$out); //Output to file again, excluding the line unfollowed.
 }