Added fake EDDN Listener

A simple HTTP handler has been added that will dump any and all POST
data it gets to EDMC's log.

Additionally, a new command line argument to switch EDMC to using this
as its EDDN target has been added.

EDMarketConnector.py

@@ -93,6 +93,8 @@ if __name__ == '__main__':  # noqa: C901
                         action='store_true'
                         )
 
+    parser.add_argument('--eddn-local', help='Redirect EDDN requests to a local webserver', action='store_true')
+
     auth_options = parser.add_mutually_exclusive_group(required=False)
     auth_options.add_argument('--force-localserver-for-auth',
                               help='Force EDMC to use a localhost webserver for Frontier Auth callback',
@@ -129,6 +131,12 @@ if __name__ == '__main__':  # noqa: C901
             parser.print_help()
             exit(1)
 
+    if args.eddn_local:
+        import eddnListener
+        import edmc_data
+        eddnListener.run_listener()
+        edmc_data.EDDN_DEBUG_SERVER = True
+
     def handle_edmc_callback_or_foregrounding() -> None:  # noqa: CCR001
         """Handle any edmc:// auth callback, else foreground existing window."""
         logger.trace('Begin...')

eddnListener.py

@@ -0,0 +1,34 @@
+"""Simple HTTP listener to be used with debugging EDDN sends."""
+import threading
+from http import server
+from typing import Any
+
+from EDMCLogging import get_main_logger
+
+logger = get_main_logger()
+
+
+class LoggingHandler(server.BaseHTTPRequestHandler):
+    """HTTP Handler implementation that logs to EDMCs logger."""
+
+    def log_message(self, format: str, *args: Any) -> None:
+        """Override default handler logger with EDMC logger."""
+        logger.info(format % args)
+
+    def do_POST(self) -> None:  # noqa: N802 # I cant change it
+        """Handle POST."""
+        logger.info("Received a POST!")
+        data = self.rfile.read(int(self.headers['Content-Length']))
+        logger.info(f"POST DATA FOLLOWS\n{data.decode('utf-8', errors='replace')}")
+        self.send_response(200, "OK")
+
+
+def run_listener(port: int = 9090) -> None:
+    """Run a listener thread."""
+    logger.info('Starting HTTP listener on 127.0.0.1:{port}!')
+    listener = server.HTTPServer(("127.0.0.1", port), LoggingHandler)
+    threading.Thread(target=listener.serve_forever, daemon=True)
+
+
+if __name__ == "__main__":
+    server.HTTPServer(("127.0.0.1", 8080), LoggingHandler).serve_forever()

edmc_data.py

@@ -570,3 +570,5 @@ edmc_suit_symbol_localised = {
         'utilitysuit':     'Traje Maverick',
     },
 }
+
+EDDN_DEBUG_SERVER = False  # Are we using a local server for debugging?

plugins/eddn.py

@@ -19,6 +19,7 @@ import requests
 import killswitch
 import myNotebook as nb  # noqa: N813
 import plug
+import edmc_data
 from companion import CAPIData, category_map
 from config import applongname, appversion_nobuild, config
 from EDMCLogging import get_main_logger
@@ -87,9 +88,12 @@ HORIZ_SKU = 'ELITE_HORIZONS_V_PLANETARY_LANDINGS'
 class EDDN:
     """EDDN Data export."""
 
-    # SERVER = 'http://localhost:8081'	# testing
     SERVER = 'https://eddn.edcd.io:4430'
+    if edmc_data.EDDN_DEBUG_SERVER:
+        SERVER = '127.0.0.1:9090'
+
     UPLOAD = f'{SERVER}/upload/'
+
     REPLAYPERIOD = 400  # Roughly two messages per second, accounting for send delays [ms]
     REPLAYFLUSH = 20  # Update log on disk roughly every 10 seconds
     TIMEOUT = 10  # requests timeout