diff --git a/sys0-code/api/uploader/check_illegal_settings.php b/sys0-code/api/uploader/check_illegal_settings.php
new file mode 100644
index 0000000..a2b911c
--- /dev/null
+++ b/sys0-code/api/uploader/check_illegal_settings.php
@@ -0,0 +1,52 @@
+<?php
+        //this file returns a list of available printers, theyr status and theyr color
+        session_start();
+        $file_path=$_SESSION["current_file"];
+        include "../../config/config.php";
+        if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true or $_SESSION["role"][0]!=="1"){
+                die("no_auth");
+            exit;
+        }
+        $class=$_SESSION["class_id"];
+        include "../../config/config.php";
+        //check if printers are reserved right now or will be while print is running
+        $is_unsafe=check_file($file_path);
+        echo(json_encode(["status"=>$is_unsafe]));
+
+
+function extract_param($gcode) {
+    // Match the pattern S followed by digits, capturing the digits
+    $matches = [];
+    $pattern = '/[S|T]([0-9]+)/';
+
+    if (preg_match($pattern, $gcode, $matches)) {
+        return (int)$matches[1]; // Return the first capture group as an integer
+    } else {
+        return false; // No match found
+    }
+}
+function check_file($path){//check file for temperature which are to high
+	$file = fopen($path, 'r');
+	$cnt=0;
+	while (!feof($file)&&$cnt!=2) {
+	    $line = fgets($file);
+	    // Extract parameter from lines with specific commands
+	    if (strpos($line, 'M104') !== false || strpos($line, 'M140') !== false) {
+		$cnt++;
+	        $parameter = extract_param($line);
+		if(strpos($line, 'M104') !== false){ //extruder_temp
+			$ex_temp=$parameter;
+		}
+		if(strpos($line, 'M140') !== false){ //bed temp
+			$bed_temp=$parameter;
+		}
+	    }
+	}
+	//echo("bed:$bed_temp;ex:$ex_temp");
+	if($bed_temp>75 or $ex_temp>225){
+		return 1;
+	}else{
+		return 0;
+	}
+}
+?>
diff --git a/sys0-code/api/uploader/check_reservations.php b/sys0-code/api/uploader/check_reservations.php
new file mode 100644
index 0000000..f8c0901
--- /dev/null
+++ b/sys0-code/api/uploader/check_reservations.php
@@ -0,0 +1,150 @@
+<?php
+date_default_timezone_set('Europe/Zurich');
+        //this file returns a list of available printers, theyr status and theyr color
+        session_start();
+	$file_path=$_SESSION["current_file"];
+        include "../../config/config.php";
+        if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true or $_SESSION["role"][0]!=="1"){
+                die("no_auth");
+            exit;
+        }
+	$class=$_SESSION["class_id"];
+	include "../../config/config.php";
+	//check if printers are reserved right now or will be while print is running
+	$is_reserved=check_reservation_conflict($link, $class);
+	if($is_reserved==0){
+		$is_reserved=check_print_reservation_conflict($link, $class, $file_path);
+	}
+	echo(json_encode(["status"=>$is_reserved]));
+
+
+function find_print_time($file) {
+    $handle = fopen($file, "r");
+    $targetPhrase = "; estimated printing time (normal mode) = ";
+    $time = null;
+
+    while (($line = fgets($handle)) !== false) {
+        if (strpos($line, $targetPhrase) !== false) {
+            // Extract the time after the target phrase
+            $time = trim(str_replace($targetPhrase, "", $line));
+            break; // Stop once the desired line is found
+        }
+    }
+
+    fclose($handle);
+
+    return $time;
+}
+
+
+
+function check_reservation_conflict($link, $class) {
+    $reservation_conflict = false;
+    $today = date("Y-m-d");
+    $time_now = date("H:i");
+    $for_class = [];
+
+    // Query for reservations that start today or extend into today
+    $sql = "
+        SELECT day, time_from, time_to, for_class 
+        FROM reservations 
+        WHERE day <= '$today' AND 
+              (day = '$today' AND time_from <= '$time_now' OR day < '$today');
+    ";
+    $stmt = $link->prepare($sql);
+    $stmt->execute();
+    $result = $stmt->get_result();
+
+    while ($row = $result->fetch_assoc()) {
+        // Calculate the actual end time of the reservation
+        $reservation_end = strtotime($row["day"] . " " . $row["time_to"]);
+        $current_time = strtotime("$today $time_now");
+
+        if ($current_time <= $reservation_end) {
+            $reservation_conflict = true;
+            $for_class[] = $row["for_class"];
+        }
+    }
+
+    // Default value for for_class if no conflicts are found
+    if (empty($for_class)) {
+        $for_class[] = 0;
+    }
+
+    // Determine the appropriate response based on the conflict status
+    $response = 0;
+
+    if ($reservation_conflict && !in_array($class, $for_class) && $class != 0) {
+	$response=1;
+    } elseif ($class == 0 && $reservation_conflict) {
+	$response=2;
+    }
+
+    return $response;
+}
+
+function check_print_reservation_conflict($link, $class, $path) {
+    $reservation_conflict = false;
+    $for_class = [];
+    $today = date("Y-m-d");
+    $time_now = date("H:i");
+
+    // Calculate the end time of the print
+    $print_time = find_print_time($path); // Assume this function is already defined
+    preg_match('/(\d+)h/', $print_time, $hours_match);
+    preg_match('/(\d+)m/', $print_time, $minutes_match);
+    $hours = isset($hours_match[1]) ? (int)$hours_match[1] : 0;
+    $minutes = isset($minutes_match[1]) ? (int)$minutes_match[1] : 0;
+	//echo("uses ".$minutes." Minutes and ".$hours." hours");
+    $start_time = DateTime::createFromFormat('H:i', $time_now);
+    $end_time = clone $start_time;
+    $end_time->modify("+{$hours} hour");
+    $end_time->modify("+{$minutes} minutes");
+
+    // Query to get all relevant reservations (today and future overlaps)
+    $sql = "
+        SELECT day, time_from, time_to, for_class 
+        FROM reservations 
+        WHERE day >= '$today';
+    ";
+    $stmt = $link->prepare($sql);
+    $stmt->execute();
+    $result = $stmt->get_result();
+
+    // Check for conflicts with reservations
+    while ($row = $result->fetch_assoc()) {
+        $reservation_start = DateTime::createFromFormat('Y-m-d H:i', $row["day"] . ' ' . $row["time_from"]);
+        $reservation_end = DateTime::createFromFormat('Y-m-d H:i', $row["day"] . ' ' . $row["time_to"]);
+
+        // Adjust reservation end time for multi-day overlaps
+        if ($reservation_end < $reservation_start) {
+            $reservation_end->modify('+1 day');
+        }
+
+        // Check if the print overlaps with any reservation period
+        if ($start_time < $reservation_end && $end_time > $reservation_start) {
+            $reservation_conflict = true;
+            $for_class[] = $row["for_class"];
+        }
+    }
+
+    // Default value for for_class if no conflicts are found
+    if (empty($for_class)) {
+        $for_class[] = 0;
+    }
+
+    // Build response based on conflict and user access
+    $response = 0;
+
+    if ($reservation_conflict && !in_array($class, $for_class) && $class != 0) {
+	$response=1;
+    } elseif ($class == 0 && $reservation_conflict) {
+	$response=2;
+    }
+
+    return $response;
+}
+?>
+
+
+
diff --git a/sys0-code/api/uploader/cloudprint.php b/sys0-code/api/uploader/cloudprint.php
new file mode 100644
index 0000000..5b36f93
--- /dev/null
+++ b/sys0-code/api/uploader/cloudprint.php
@@ -0,0 +1,10 @@
+<?php
+	session_start();
+        if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true or $_SESSION["role"][0]!=="1"){
+                die("no_auth");
+            exit;
+        }
+        $username=$_SESSION["username"];
+        $path = "/var/www/html/user_files/$username/";
+        $_SESSION["current_file"]=$path.$_GET["file"];
+?>
diff --git a/sys0-code/api/uploader/fetch_printers.php b/sys0-code/api/uploader/fetch_printers.php
new file mode 100644
index 0000000..9cf6fb2
--- /dev/null
+++ b/sys0-code/api/uploader/fetch_printers.php
@@ -0,0 +1,29 @@
+<?php
+	//this file returns a list of available printers, theyr status and theyr color
+	session_start();
+	include "../../config/config.php";
+	if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true or $_SESSION["role"][0]!=="1"){
+		die("no_auth");
+	    exit;
+	}
+	$sql = "SELECT p.id, f.name AS color, p.free, p.system_status
+            FROM printer p
+            LEFT JOIN filament f ON p.color = f.internal_id
+            ORDER BY p.id";
+
+	$stmt = mysqli_prepare($link, $sql);
+	mysqli_stmt_execute($stmt);
+	$result = mysqli_stmt_get_result($stmt);
+
+	$printers = [];
+	while ($row = mysqli_fetch_assoc($result)) {
+		$printers[] = [
+			'id' => $row['id'],
+			'free' => $row['free'],
+			'error_status' => $row['system_status'],
+			'color' => htmlspecialchars($row['color'], ENT_QUOTES, 'UTF-8')
+		];
+	}
+	echo json_encode($printers);
+?>
+
diff --git a/sys0-code/api/uploader/print.php b/sys0-code/api/uploader/print.php
new file mode 100644
index 0000000..40b1d9b
--- /dev/null
+++ b/sys0-code/api/uploader/print.php
@@ -0,0 +1,373 @@
+<?php
+	//auth stuff
+	session_start();
+	if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true or $_SESSION["role"][0]!=="1"){
+	    header("location: /login/login.php");
+	    exit;
+	}
+	$username=htmlspecialchars($_SESSION["username"]);
+?>
+<!DOCTYPE html>
+<html lang="de" data-bs-theme="dark">
+	<head>
+		<meta charset="UTF-8">
+		<meta name="viewport" content="width=device-width, initial-scale=1.0">
+		<title>System0 - Print</title>
+		<?php include "../../assets/components.php"; ?>
+	</head>
+	<body>
+		<script src="/assets/js/load_page.js"></script>
+		<script>
+			function load_user()
+			{
+				$(document).ready(function(){
+					$('#content').load("/assets/php/user_page.php");
+				});
+				$(document).ready(function(){
+  					$('#footer').load("/assets/html/footer.html");
+				});
+			}
+		</script>
+		<script type='text/javascript' >load_user()</script>
+		<?php
+                	if(isset($_GET["cloudprint"])){
+				echo("<script>let cloudprint=1;</script>");
+			}else{
+				echo("<script>let cloudprint=0;</script>");
+			}
+		?>
+		<!-- navbar -->
+		<div id="content"></div>
+		<!-- div where all our content goes -->
+		<div style="min-height:95vh">
+			<!-- we need to show a file upload thing and offer the selectnio of printers -->
+			<div class="container mt-5 d-flex justify-content-center">
+				<form>
+					<div class="mb-3">
+						<label for="fileUpload" class="form-label">3D-Druck Datei</label>
+						<?php
+                                                	if(isset($_GET["cloudprint"])){
+                                                	        echo('<input type="text" value="'.$_GET["cloudprint"].'" class="form-control" disabled id="file_upload">');
+                                                	}else{
+								echo('<input type="file" class="form-control" accept=".gcode" id="file_upload">');
+							}
+                                        	?>
+					</div>
+					<div class="mb-3">
+						<label for="selectOption" class="form-label">Drucker</label>
+						<select class="form-select" id="selectOption">
+						    <option selected value="not_set">Bitte wähle einen Drucker</option>
+						</select>
+					</div>
+					<a style="cursor: pointer" onclick="start_upload(1)" class="btn btn-primary">Drucken</a>
+				</form>
+			</div>
+
+		</div>
+		<!-- footer -->
+		<div id="footer"></div>
+
+		<script>
+			let global_error="";
+			//js to handle backend requests
+			//load printers
+			document.addEventListener("DOMContentLoaded", function () {
+				const selectElement = document.getElementById("selectOption");
+				const apiUrl = "/api/uploader/fetch_printers.php"; // Replace with your actual API URL
+    				function getUrlParam(name) {
+        				const urlParams = new URLSearchParams(window.location.search);
+        				return urlParams.get(name);
+    				}
+
+    				const preselectId = getUrlParam("preselect"); // Get "preselect" value from URL
+
+    				fetch(apiUrl)
+        				.then(response => response.json())
+        				.then(data => {
+        				    data.forEach(item => {
+        				        const option = document.createElement("option");
+                				option.value = item.id;
+						if(item.free==0){
+                					option.textContent = `Drucker ${item.id} - ${item.color}`;
+                				}else{
+							option.textContent = `Drucker ${item.id} - ${item.color} - Warteschlange`;
+						}
+						if (item.id == preselectId) {
+                				    option.selected = true;
+                				}
+						selectElement.appendChild(option);
+        				    });
+        				})
+        			.catch(error => console.error("Error fetching data:", error));
+			});
+			async function start_upload(use_checks){
+				//main function handles the steps from user pressing upload button via checking params to starting job via api
+				//we have a modal that shows progress to the user
+				document.getElementById("close_progress_modal").style.display = "none";
+				document.getElementById("close_progress_modal2").style.display = "none";
+				let steps = [
+        			    "Initialisierung",
+        			    "Datei auf System0 Hochladen",
+        			    "Nach Reservationskonflikten suchen",
+        			    "Nach Invaliden Druckeinstellungen suchen",
+        			    "Job an Drucker senden",
+				    "Fertig!"
+			        ];
+				let progressContent = document.getElementById("progressContent");
+			        progressContent.innerHTML = ""; // Clear previous content
+
+			        let modal = new bootstrap.Modal(document.getElementById("progressModal"));
+        			modal.show();
+				add_step(0,progressContent,steps);
+				//initialising => set all vars to 0 etc
+				finish_step(0,progressContent,steps);
+				if(cloudprint==0){
+					add_step(1,progressContent,steps);
+					//upload file to system0
+					if(await upload_file()==0){
+						finish_step(1,progressContent,steps);
+					}else{
+						add_error("Fehler beim Upload der Datei - "+global_error,progressContent);
+						cancel_step(1,progressContent,steps);
+						show_close_button();
+						return;
+					}
+				}else{
+					//just tell the server what the file is.
+					await fetch("/api/uploader/cloudprint.php?file=<?php echo($_GET['cloudprint']); ?>");
+				}
+				global_error="";
+				//check if there is a reservation ongoing during this print
+				add_step(2,progressContent,steps);
+				let status=await check_reservations();
+				if(status==0){
+                                        finish_step(2,progressContent,steps);
+                                }else if(status==1){
+					//reserved and user is student
+					add_error("Die Drucker sind zurzeit reserviert. Bitte versuche es später erneut.");
+					cancel_step(2,progressContent,steps);
+					show_close_button();
+					return;
+				}else if(status==2){
+					//reserved but user is admin
+					add_warning("Die Drucker sind Zurzeit reserviert. Als Lehrperson wird ihr Druck allerdings trozdem gedruckt. Bitte gehen Sie sicher, dass nicht eine Klasse beeinträchtigt wird.",progressContent);
+                                	finish_step(2,progressContent,steps);
+				}else{
+                                        add_error("Fehler beim überprüfen der Reservationen - "+global_error,progressContent);
+                                        cancel_step(2,progressContent,steps);
+					show_close_button();
+					return;
+                                }
+				global_error="";
+				//search for invalid print settings.
+				add_step(3,progressContent,steps);
+				status=await check_illegal_settings(progressContent);
+				if(status==0){
+					finish_step(3,progressContent,steps);
+				}else if(use_checks==0){
+					add_warning("Warnung: Dieser Druck wird mit sehr hohen Temparaturen gedruckt. Dies kann zur zerstörung des Druckers führen!",progressContent);
+					finish_step(3,progressContent,steps);
+				}else if(status==1){
+					add_error("Achtung deine Drucktemparatur ist sehr hoch eingestellt. Dies kann zur zerstörung des Druckers führen! Bitte fahre nur fort, wenn du dir sicher bist, was du tust!",progressContent);
+					add_circumvent_link(progressContent);
+					cancel_step(3,progressContent,steps);
+					show_close_button();
+					return;
+				}else{
+					add_error("Fehler beim prüfen der Druckeinstellungen",progressContent);
+					cancel_step(3,progressContent,steps);
+                                        show_close_button();
+                                        return;
+				}
+				global_error="";
+				//send to printer
+				add_step(4,progressContent,steps);
+				status=await start_job();
+				if(status==0){
+					finish_step(4,progressContent,steps);
+					add_step(5,progressContent,steps);
+					finish_step(5,progressContent,steps);
+					add_success("Job erfolgreich gestartet",progressContent);
+				}else{
+					add_error("Fehler beim starten des Jobs. "+global_error, progressContent);
+					cancel_step(4,progressContent,steps);
+					show_close_button();
+					return;
+				}
+			}
+
+			function add_circumvent_link(progressContent) {
+                                    let stepHtml = `
+                                        <div>
+						<a onclick="start_upload(0);" target="_blank" class="step-link">Drücke hier, um alle überprüfungen zu umgehen</a>
+                                        </div>
+                                        `;
+
+                                        progressContent.innerHTML += stepHtml;
+                        }
+
+			function finish_step(index,progressContent,steps){
+				let stepId = "step-" + index;
+				let stepElement = document.getElementById(stepId);
+                                if (stepElement) {
+                                        stepElement.innerHTML = `
+                                       		<span class="text-success fw-bold">✔</span>
+                                        	<span>${steps[index]}</span>
+                                	`;
+                                }
+				if (index >= steps.length-1){
+                                        document.getElementById("close_progress_modal").style.display = "block";
+                                        document.getElementById("close_progress_modal2").style.display = "block";
+				}
+			}
+                        function show_close_button(){
+                                document.getElementById("close_progress_modal").style.display = "block";
+                                document.getElementById("close_progress_modal2").style.display = "block";
+                        }
+			function cancel_step(index,progressContent,steps){
+                                let stepId = "step-" + index;
+                                let stepElement = document.getElementById(stepId);
+                                if (stepElement) {
+                                        stepElement.innerHTML = `
+                                                <span class="text-success fw-bold">❌</span>
+                                                <span>${steps[index]}</span>
+                                        `;
+				}
+                                document.getElementById("close_progress_modal").style.display = "block";
+                                document.getElementById("close_progress_modal2").style.display = "block";
+                        }
+                        function add_error(msg,progressContent){
+				let errorHtml = `
+					<br>
+					<div class='alert alert-danger' role='alert'>Fehler - ${msg}</div>
+                                        `;
+
+                                progressContent.innerHTML += errorHtml;
+                        }
+			function add_success(msg,progressContent){
+                                let errorHtml = `
+                                        <br>
+                                        <div class='alert alert-success' role='alert'>Erfolg - ${msg}</div>
+                                        `;
+
+                                progressContent.innerHTML += errorHtml;
+                        }
+			function add_warning(msg,progressContent){
+                                let errorHtml = `
+                                        <br>
+                                        <div class='alert alert-warning' role='alert'>Warnung - ${msg}</div>
+                                        `;
+
+                                progressContent.innerHTML += errorHtml;
+                        }
+			function add_step(index,progressContent,steps) {
+                                    let stepId = "step-" + index;
+                                    let stepHtml = `
+                                        <div class="step-container" id="${stepId}">
+                                            <span class="spinner-border text-primary" role="status"></span>
+                                            <span>${steps[index]}</span>
+                                        </div>
+                                        `;
+
+                                        progressContent.innerHTML += stepHtml;
+                        }
+			async function check_illegal_settings(progressContent){
+				try {
+                                const response = await fetch("/api/uploader/check_illegal_settings.php");
+                                if (!response.ok) {
+                                    throw new Error(`HTTP error! Status: ${response.status}`);
+                                }
+
+                                const data = await response.json();
+				if(data["status"]!=0){
+					global_error="Dieser Fehler ist auf dem Drucker. Warte einige Minuten und versuche es erneut.";
+				}
+                                return data["status"];
+                         } catch (error) {
+                                return 4;
+                         }
+			}
+			async function start_job(){
+				let printer_id=document.getElementById("selectOption").value;
+				if(printer_id=="not_set"){
+					global_error="Kein Drucker ausgewählt";
+					return 5;
+				}
+                                try {
+                                const response = await fetch("/api/uploader/start_job.php?printer="+printer_id);
+                                if (!response.ok) {
+                                    throw new Error(`HTTP error! Status: ${response.status}`);
+                                }
+
+                                const data = await response.json();
+                                return data["status"];
+                         } catch (error) {
+                                return 5;
+                         }
+                        }
+			async function upload_file(){
+				const fileInput = document.getElementById('file_upload');
+            			const file = fileInput.files[0];
+
+            			if (!file) {
+					global_error="Keine Datei ausgewählt";
+                			return 1;
+		            	}
+
+			            const formData = new FormData();
+        			    formData.append('file', file);
+
+        			    try {
+                			const response = await fetch('/api/uploader/upload_file.php', {
+                			    method: 'POST',
+                			    body: formData,
+                			});
+                			if (response.ok) {
+                			    const result = await response.json();
+						if(result.status=="error"){
+							global_error=result.message;
+							return 1;
+						}
+                			} else {
+						return 1;
+                			}
+            			} catch (error) {
+					return 1;
+            			}
+				return 0;
+			}
+			async function check_reservations() {
+			    try {
+			        const response = await fetch("/api/uploader/check_reservations.php");
+        			if (!response.ok) {
+        			    throw new Error(`HTTP error! Status: ${response.status}`);
+        			}
+
+			        const data = await response.json();
+            			return data["status"];
+    			 } catch (error) {
+    			    	return 4;
+    			 }
+			}
+
+		</script>
+	<!-- progress modal -->
+	<div class="modal fade" id="progressModal" tabindex="1" data-bs-backdrop="static" data-bs-keyboard="false" role="dialog" aria-labelledby="progressModalLabel" aria-hidden="false">
+    		<div class="modal-dialog" role="document">
+        		<div class="modal-content">
+        		    <div class="modal-header">
+        		        <h5 class="modal-title" id="progressModalLabel">Fortschritt</h5>
+                		<button id="close_progress_modal" type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Schliessen"></button>
+            		    </div>
+         	   		<div class="modal-body">
+           			     <div id="progressContent"></div>
+           			</div>
+            			<div class="modal-footer">
+                			<button id="close_progress_modal2" type="button" class="btn btn-secondary" data-bs-dismiss="modal">Schliessen</button>
+            			</div>
+        		</div>
+    		</div>
+	</div>
+
+	</body>
+</html>
diff --git a/sys0-code/api/uploader/start_job.php b/sys0-code/api/uploader/start_job.php
new file mode 100644
index 0000000..73cc4fb
--- /dev/null
+++ b/sys0-code/api/uploader/start_job.php
@@ -0,0 +1,57 @@
+<?php
+        //this file returns a list of available printers, theyr status and theyr color
+        session_start();
+        $file_path=$_SESSION["current_file"];
+        include "../../config/config.php";
+        if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true or $_SESSION["role"][0]!=="1"){
+                die("no_auth");
+            exit;
+        }
+        include "../../config/config.php";
+	//if printer is ready, upload to printer, else upload to queue
+	//return 0 if success, else return any int
+	$printer_id=intval($_GET["printer_id"]);
+	//check if printer is ready
+	$sql="select printer_url, free, system_status,apikey,printer_url from printer where id=$printer_id";
+	$stmt = mysqli_prepare($link, $sql);
+	mysqli_stmt_execute($stmt);
+	mysqli_stmt_store_result($stmt);
+	mysqli_stmt_bind_result($stmt, $url,$free,$status,$apikey,$printer_url);
+	mysqli_stmt_fetch($stmt);
+	mysqli_stmt_close($stmt);
+	$result=1;
+	$username=$_SESSION["username"];
+	$userid=$_SESSION["id"];
+	if($free==1 && $status==0){
+		//upload to printer
+		exec('curl -k -H "X-Api-Key: '.$apikey.'" -F "select=true" -F "print=true" -F "file=@'.$path.'" "'.$printer_url.'/api/files/local" > /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);
+		if($json['effectivePrint']==false or $json["effectiveSelect"]==false)
+		{
+			$result=1;
+		}
+		else
+		{
+			$sql="update printer set free=0, printing=1,mail_sent=0, used_by_userid=$userid where id=$printer_id";
+			$stmt = mysqli_prepare($link, $sql);
+			mysqli_stmt_execute($stmt);
+			 mysqli_stmt_close($stmt);
+			$result=0;
+		}
+	}else if($free!=1 && $status==0){
+		//upload to queue 
+		$path=$_SESSION["current_file"];
+		$sql="INSERT INTO queue (from_userid,filepath,print_on) VALUES (?,?,?)";
+		$stmt = mysqli_prepare($link, $sql);
+		mysqli_stmt_bind_param($stmt, "isi", $userid,$path,$printer_id);
+		mysqli_stmt_execute($stmt);
+		mysqli_stmt_close($stmt);
+		$result=0;
+
+	}else{
+		//error
+		$result=1;
+	}
+	echo(json_encode(["status"=>$result]));
+?>
diff --git a/sys0-code/api/uploader/upload_file.php b/sys0-code/api/uploader/upload_file.php
new file mode 100644
index 0000000..2fa20c7
--- /dev/null
+++ b/sys0-code/api/uploader/upload_file.php
@@ -0,0 +1,33 @@
+<?php
+session_start();
+        include "../../config/config.php";
+        if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true or $_SESSION["role"][0]!=="1"){
+                die("no_auth");
+            exit;
+        }
+	$username=$_SESSION["username"];
+	$path = "/var/www/html/user_files/$username/";
+
+if ($_SERVER["REQUEST_METHOD"] === "POST") {
+    if (isset($_FILES["file"]) && $_FILES["file"]["error"] === UPLOAD_ERR_OK) {
+        $fileTmpPath = $_FILES["file"]["tmp_name"];
+        $fileName = basename($_FILES["file"]["name"]);
+        $filePath = $path . $fileName;
+	$filetype = strtolower(pathinfo($_FILES['file']['name'],PATHINFO_EXTENSION));
+	if($filetype==="gcode"){
+        	if (move_uploaded_file($fileTmpPath, $filePath)) {
+        	    echo json_encode(["status" => "success", "message" => "Datei hochgeladen", "file" => $filePath]);
+			$_SESSION["current_file"]="$filePath";
+        	} else {
+        	    echo json_encode(["status" => "error", "message" => "Konnte datei nicht in Benutzerordner verschieben"]);
+        	}
+	}else{
+		echo json_encode(["status" => "error", "message" => "Dieser Dateityp wird nicht unterstützt"]);
+	}
+    } else {
+        echo json_encode(["status" => "error", "message" => "Unbekannter Fehler"]);
+    }
+} else {
+    echo json_encode(["status" => "error", "message" => "Invalide Anfrage"]);
+}
+?>