BUG: Fix Security Flutter Web server

mih_ui/Dockerfile

@@ -1,48 +1,36 @@
-# Install Operating system and dependencies
-#FROM ubuntu:22.04
+# --- STAGE 1: The Builder ---
 FROM debian:latest AS build-env
 
-#ENV DEBIAN_FRONTEND=noninteractive
+# Install necessary dependencies for Flutter 
+RUN apt-get update && apt-get install -y \
+    curl git wget unzip libglu1-mesa fonts-droid-fallback python3 \
+    && rm -rf /var/lib/apt/lists/*
 
-RUN apt-get update --fix-missing
-
-RUN apt-get install -y curl git wget unzip gdb libstdc++6 libglu1-mesa fonts-droid-fallback
-# RUN apt-get install -y curl git wget unzip libgconf-2-4 gdb libstdc++6 libglu1-mesa fonts-droid-fallback
-RUN apt-get install python3 -y
-
-# download Flutter SDK from Flutter Github repo
+# Clone Flutter SDK 
 RUN git clone -b flutter-3.32-candidate.0 https://github.com/flutter/flutter.git /usr/local/flutter
-# RUN git clone -b stable https://github.com/flutter/flutter.git /usr/local/flutter
-
-# Set flutter environment path
 ENV PATH="/usr/local/flutter/bin:/usr/local/flutter/bin/cache/dart-sdk/bin:${PATH}"
-#ENV PATH "$PATH:/home/developer/flutter/bin"
-
-RUN flutter doctor -v
-
-# Enable flutter web
-RUN flutter channel flutter-3.32-candidate.0
-# RUN flutter channel stable
-RUN flutter config --enable-web
-
-# Copy files to container and build
-RUN mkdir /app/
-COPY . /app/
 
+# Build the Flutter web app 
 WORKDIR /app
-# RUN flutter upgrade
+COPY . .
+RUN flutter config --enable-web
 RUN flutter build web --release -t ./lib/main_prod.dart
-# RUN flutter build web --release --web-renderer canvaskit -t ./lib/main_prod.dart
 
+# --- STAGE 2: The Final Production Image ---
+FROM nginx:alpine
 
-# RUN cd ..
+# Copy built files from the first stage 
+COPY --from=build-env /app/build/web /usr/share/nginx/html
 
-# WORKDIR /app/build/web/
+# Create the Nginx config inside the Dockerfile to handle SPA routing 
+RUN echo 'server { \
+    listen 83; \
+    location / { \
+    root /usr/share/nginx/html; \
+    index index.html; \
+    try_files $uri $uri/ /index.html; \
+    } \
+    }' > /etc/nginx/conf.d/default.conf
 
 EXPOSE 83
-
-RUN ["chmod", "+x", "/app/server/server.sh"]
-
-ENTRYPOINT [ "/app/server/server.sh"]
-
-# RUN ["python3", "-u", "/app/server/MIH_web_server.py"]
+CMD ["nginx", "-g", "daemon off;"]

mih_ui/server/MIH_web_server.py

@@ -1,30 +0,0 @@
-#!/usr/bin/env python
-
-# Inspired by https://gist.github.com/jtangelder/e445e9a7f5e31c220be6
-# Python3 http.server for Single Page Application
-
-import urllib.parse
-import http.server
-import socketserver
-import re
-from pathlib import Path
-port = 83
-HOST = ('', port)
-pattern = re.compile('.png|.jpg|.jpeg|.js|.css|.ico|.gif|.svg|.ico', re.IGNORECASE)
-
-
-class Handler(http.server.SimpleHTTPRequestHandler):
-    def do_GET(self):
-        url_parts = urllib.parse.urlparse(self.path)
-        request_file_path = Path(url_parts.path.strip("/"))
-
-        ext = request_file_path.suffix
-        if not request_file_path.is_file() and not pattern.match(ext):
-            self.path = 'index.html'
-
-        return http.server.SimpleHTTPRequestHandler.do_GET(self)
-
-
-httpd = socketserver.TCPServer(HOST, Handler)
-print(f"Starting Web App Server on pot: {port}")
-httpd.serve_forever()

mih_ui/server/server.sh

@@ -1,18 +0,0 @@
-#!/bin/bash
-
-# Define the port
-PORT=83
-
-# Check if the port is in use and release it if necessary.
-# echo "Checking if port $PORT is in use..."
-# if [ "$(lsof -t -i :$PORT)" ]; then
-#   echo "Port $PORT is in use. Stopping the process on that port..."
-#   fuser -k -n tcp $PORT
-# fi
-
-# Switch to the web construction directory
-cd /app/build/web/
-
-# Start the web server on the specified port
-#python3 -m http.server 83
-python3 -u ../../server/MIH_web_server.py