Handle pillow file errors and move intermediate file storage to ram

README.md

@@ -0,0 +1,28 @@
+## steps I have taken while installing on pi
+git clone [this repo] (I actually used scp)
+sudo apt install python3-flask
+rm -rf library_bridge.h and library_bridge.h
+
+add: export GO111MODULE=on, to the first line of the Makefile
+make
+
+edit dhcpcd.conf and uncomment and change:
+static ip_address=10.209.10.2/24
+static routers=10.209.10.254
+static domain_name_servers=10.209.10.255
+
+edit /etc/nginx/sites-available/default and change:
+
+location / {
+    proxy_pass http://127.0.0.1:8080;
+    proxy_redirect http://127.0.0.1:8080 $scheme://$host:8080;
+}
+to
+
+location / {
+    proxy_pass http://127.0.0.1:5000;
+    proxy_redirect http://127.0.0.1:8080 $scheme://$host:5000;
+}
+
+systemctl stop & enable labelapi.service
+cp to /etc/systemd/system label_printer.service, and enable

app.py

@@ -10,8 +10,8 @@ from file_handler import *
 from colorama import Fore, Style
 import os
 
-generated_image_filename = "generated.png"
-uploaded_image_filename = "uploaded" #extention is depended on uploaded file format
+text_image_filename = "text_image.png"
+uploaded_image_filename = "uploaded_image.png"
 
 app = Flask(__name__)
 
@@ -90,20 +90,21 @@ def image():
             return redirect(request.url)
         if file:
             extension = os.path.splitext(file.filename)[1]
-            session["uploaded image path"] = uploaded_image_filename+extension
 
-            filepath = get_file_path(session, session["uploaded image path"])
-            file.save(filepath)
+            try:
+                message, status, img = process_image(file.stream)
+                session["uploaded image path"] = uploaded_image_filename
+                img.save(get_file_path(session, session["uploaded image path"]))
+            except Exception as e:
+                message = f"{e}"
+                status = "Error"
 
-            message, status, img = process_image(filepath)
-            img.save(filepath)
 
             if status == "Error":
                 session["uploaded image path"] = None
                 return render_image_template("Error: " + message, "red")
 
             elif status == "Info":
-                session["text image path"] = None
                 return render_image_template("Info: " + message, "black")
             
     return render_image_template()
@@ -173,7 +174,7 @@ def text_form():
 
         get_folder_path(session)
 
-        session["text image path"] = generated_image_filename
+        session["text image path"] = text_image_filename
         img.save(get_file_path(session, session["text image path"]))
         print()
         print(session["text image path"])
@@ -216,15 +217,6 @@ def user_data(filename):
     return send_from_directory(get_folder_path(session), filename)
 
 
-@app.route('/uploads/<filename>')
-def uploaded_file(filename):
-    return redirect(url_for('static', filename='uploads/' + filename))
-
-
-@app.route('/text/<filename>')
-def generated_file(filename):
-    return redirect(url_for('static', filename='text/' + filename))
-
 
 if __name__ == "__main__":
     app.run(debug=True)

process_image.py

@@ -11,8 +11,8 @@ def format_image_to_label(path):
 
     return new_image
 
-def process_image(path):
-    image = Image.open(path)
+def process_image(image_filestream):
+    image = Image.open(image_filestream)
     message = None
     status = None