adding updated code

sys0-code/api/sendmail.php

@@ -0,0 +1,102 @@
+<?php
+	
+	$username="sys0_autonomous";
+	//no auth, we only check if any printe rhas finished and if yes, if we should send a mail, if yes send the mail.
+
+	include "../config/config.php";
+	include "../api/queue.php";
+	test_queue($link);
+
+	//iterate over all printers and receive theyr status
+	
+
+	$cnt=0;
+	$url="";
+	$apikey="";
+	$sql="select count(*) from printer where printing=1";
+	$stmt = mysqli_prepare($link, $sql);					
+	mysqli_stmt_execute($stmt);
+	mysqli_stmt_store_result($stmt);
+	mysqli_stmt_bind_result($stmt, $cnt);
+	mysqli_stmt_fetch($stmt);	
+	//echo($cnt);
+	$is_free=0;					
+	$last_id=0;	
+	$mail_sent=1;	
+	$used_by_userid=0;			
+	while($cnt!=0)
+	{	
+
+		$sql="select free,id,printer_url,apikey,cancel,used_by_userid,mail_sent from printer where id>$last_id and printing=1 ORDER BY id";
+		$cancel=0;
+		$stmt = mysqli_prepare($link, $sql);					
+		mysqli_stmt_execute($stmt);
+		mysqli_stmt_store_result($stmt);
+		mysqli_stmt_bind_result($stmt, $is_free,$printer_id,$url,$apikey,$cancel,$used_by_userid,$mail_sent);
+		mysqli_stmt_fetch($stmt);
+		$last_id=$printer_id;
+
+		//printer is printing
+		exec("curl --max-time 10 $url/api/job?apikey=$apikey > /var/www/html/user_files/$username/json.json");
+		$fg=file_get_contents("/var/www/html/user_files/$username/json.json");
+		$json=json_decode($fg,true);
+		
+		
+		$used_by_user="";
+		$telegram_id="";
+		$notification_telegram=0;
+		$notification_mail=0;
+		$sql="select username,telegram_id,notification_telegram,notification_mail from users where id=$used_by_userid";
+		$stmt = mysqli_prepare($link, $sql);					
+		mysqli_stmt_execute($stmt);
+		mysqli_stmt_store_result($stmt);
+		mysqli_stmt_bind_result($stmt, $used_by_user,$telegram_id,$notification_telegram,$notification_mail);
+		mysqli_stmt_fetch($stmt);
+		$username3=explode("@",$used_by_user);
+		$username2=$username3[0];
+		$progress=(int) $json['progress']['completion'];
+		if($progress<0)
+			$progress=-$progress;
+		$file=$json['job']['file']['name'];
+		if($progress==100){
+				//print finished
+				//check if mail has not been sent:
+				
+				if($mail_sent==0 && $notification_telegram==1){
+					//send telegram message
+					echo("sending telegram for printer $printer_id<br>");
+					$text = urlencode("Hi $username2\nDein Druck auf Drucker $printer_id ist fertig\nDatei, welche du gedruckt hast: $file\n");
+					exec("curl \"https://api.telegram.org/$api/sendMessage?chat_id=$telegram_id&text=$text\"");
+					$sql="update printer set mail_sent=1 where id=$printer_id";
+					$stmt = mysqli_prepare($link, $sql);					
+					mysqli_stmt_execute($stmt);
+	
+				}
+
+				if($mail_sent==0 && $notification_mail==1)
+				{
+
+					echo("sending mail for printer $printer_id<br>");
+					$mail=<<<EOF
+curl --request POST \
+  --url https://api.sendgrid.com/v3/mail/send \
+  --header "Authorization: Bearer $SENDGRID_API_KEY" \
+  --header 'Content-Type: application/json' \
+  --data '{"personalizations": [{"to": [{"email": "$used_by_user"}]}],"from": {"email": "$sendgrid_email"},"subject": "3D-Druck $file abholbereit","content": [{"type": "text/html", "value": "Hallo $username2<br>Dein 3D-Druck auf Drucker $printer_id ist fertig.<br>Bitte hole diesen ab und vergiss nicht den Drucker danach freizugeben!<br>Deine Aufträge: <a href='https://app.ksw3d.ch/system0/html/php/login/v3/php/overview.php?private'>https://app.ksw3d.ch/system0/html/php/login/v3/php/overview.php?private</a><br>Datei, welche du gedruckt hast: $file<br><br>Vielen dank für dein Vertrauen in uns!<br>Code Camp 2024<br>"}]}'
+EOF;
+					$out="";
+					exec($mail,$out);
+					$sql="update printer set mail_sent=1 where id=$printer_id";
+					$stmt = mysqli_prepare($link, $sql);					
+					mysqli_stmt_execute($stmt);
+				}
+		}
+		else if($cancel==1){
+				//print cancelled
+		}								
+		//else: print still running
+		$cnt--;
+	}
+
+
+?>