build(server): modernize backend with python http.server and requirements

server.py

@@ -0,0 +1,84 @@
+#!/usr/bin/env python3
+"""
+Python standard library HTTP server replacing legacy CGI execution.
+Serves static frontend files and provides JSON API endpoint for scraper paths.
+"""
+
+import http.server
+import json
+import os
+import sys
+from urllib.parse import parse_qs, urlparse, unquote
+
+# Add cgi-bin directory to sys.path so scraper can be imported cleanly
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'cgi-bin'))
+from scraper import run
+
+
+class PhikipathiaHandler(http.server.SimpleHTTPRequestHandler):
+    def do_GET(self):
+        parsed_url = urlparse(self.path)
+
+        # Handle API endpoints: /cgi-bin/init.py or /api/find-path
+        if parsed_url.path in ['/cgi-bin/init.py', '/api/find-path']:
+            query_params = parse_qs(parsed_url.query)
+
+            taal = 'en'
+            start = 'Special:Random'
+            einde = 'Philosophy'
+
+            if 'data' in query_params:
+                try:
+                    data_raw = unquote(query_params['data'][0])
+                    data_json = json.loads(data_raw)
+                    taal = data_json.get('taal', taal)
+                    start = data_json.get('start', start)
+                    einde = data_json.get('einde', einde)
+                except Exception as err:
+                    self.send_json({'error': f"Fout bij verwerken van request parameters: {str(err)}"}, status=400)
+                    return
+            else:
+                taal = query_params.get('taal', [taal])[0]
+                start = query_params.get('start', [start])[0]
+                einde = query_params.get('einde', [einde])[0]
+
+            try:
+                antwoord = run(taal, start, einde)
+                self.send_json(antwoord)
+            except Exception as e:
+                self.send_json({'error': f"Interne serverfout: {str(e)}"}, status=500)
+            return
+
+        # Default: serve static files (index.html, style.css, index.js, images)
+        super().do_GET()
+
+    def send_json(self, data, status=200):
+        body = json.dumps(data).encode('utf-8')
+        self.send_response(status)
+        self.send_header('Content-Type', 'application/json; charset=utf-8')
+        self.send_header('Content-Length', str(len(body)))
+        self.send_header('Access-Control-Allow-Origin', '*')
+        self.send_header('X-Content-Type-Options', 'nosniff')
+        self.send_header('X-Frame-Options', 'SAMEORIGIN')
+        self.end_headers()
+        self.wfile.write(body)
+
+    def log_message(self, format, *args):
+        # Clean logging format
+        sys.stderr.write(f"[{self.log_date_time_string()}] {format % args}\n")
+
+
+def main():
+    port = int(os.environ.get('PORT', 8000))
+    server_address = ('', port)
+    httpd = http.server.HTTPServer(server_address, PhikipathiaHandler)
+    print(f"Phikipathia server active on http://localhost:{port}")
+    try:
+        httpd.serve_forever()
+    except KeyboardInterrupt:
+        print("\nServer shutting down.")
+        httpd.server_close()
+
+
+if __name__ == '__main__':
+    main()