init

server.py

@@ -0,0 +1,104 @@
+from os import environ
+import argparse
+from flask import Flask, request, make_response, send_from_directory, jsonify
+from config import PrinterConfig
+
+argument_parser = argparse.ArgumentParser()
+argument_parser.add_argument("--address", type=str, required=False, default="0.0.0.0")
+argument_parser.add_argument("--port", type=int, required=False, default=8005)
+
+args = argument_parser.parse_args()
+
+printer_config = PrinterConfig()
+app = Flask(__name__)
+
+
+@app.route("/")
+def index_route():
+    return send_from_directory("static", "index.html")
+
+
+@app.route("/config", methods=["GET", "POST"])
+def config_route():
+    request_type = None
+    if "Accept" in request.headers:
+        if "text/html" in request.headers["Accept"]:
+            request_type = "html"
+        elif "application/json" in request.headers["Accept"]:
+            request_type = "json"
+
+    print(request_type)
+    if request.method == "GET" and request_type == "html":
+        # return config html page
+        return send_from_directory("static", "config.html")
+    elif request.method == "GET" and request_type == "json":
+        # render config as JSON
+        print(get_config())
+        return jsonify(get_config())
+    elif request.method == "POST" and request.is_json:
+        # accept JSON form with new parameters
+        errors = {"critical": False, "errors": {}}
+        try:
+            request_data = request.json
+            print(request_data)
+        except Exception:
+            errors["errors"]["json"] = "Could not decode message as json"
+            errors["critical"] = True
+        
+        request_params = {}
+        if "address" in request_data:
+            request_params["address"] = request_data["address"]
+        if "port" in request_data:
+            port = request_data["port"]
+            if isinstance(port, int) and 0 < port <= 65535:
+                request_params["port"] = port
+            else:
+                errors["errors"]["parseint"] = "Could not parse port number as an integer"
+                errors["critical"] = True
+        
+        response = jsonify(errors)
+        if errors["critical"]:
+            response.status_code = 422
+        else:
+            response.status_code = 200
+            set_config(**request_params)
+        return response
+
+
+def get_config():
+    return {
+        "address": printer_config.printer_address,
+        "port": printer_config.printer_port,
+        "profile": printer_config.printer_profile,
+        "can_print": can_print(),
+    }
+
+
+def set_config(address: str = None, port: int = None):
+    if address is None:
+        printer_config.printer_address = None
+    else:
+        printer_config.printer_address = address
+    if port is None:
+        printer_config.printer_port = 9100
+    else:
+        printer_config.printer_port = port
+
+
+def can_print():
+    return printer_config.complete
+
+
+if __name__ == "__main__":
+    try:
+        printer_config.load()
+    except FileNotFoundError:
+        pass
+
+    try:
+        app.run(host=args.address, port=args.port)
+    except KeyboardInterrupt:
+        pass
+
+    printer_config.save()
+    exit(0)