1 files changed, 101 insertions, 0 deletions
diff --git a/test/server.py b/test/server.py
new file mode 100755
index 0000000..58a84bd
--- /dev/null
+++ b/test/server.py
@@ -0,0 +1,101 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 jahoti <jahoti@tilde.team>
+# Licensing information is collated in the `copyright` file
+
+"""
+A modular "virtual network" proxy,
+wrapping the classes in proxy_core.py
+"""
+
+import proxy_core
+from urllib.parse import parse_qs
+from misc_constants import *
+from world_wide_library import catalog as internet
+
+class RequestHijacker(proxy_core.ProxyRequestHandler):
+	def handle_request(self, req_body):
+		path_components = self.path.split('?', maxsplit=1)
+		path = path_components[0]
+		try:
+			# Response format: (status_code, headers (dict. of strings),
+			#       body as bytes or filename containing body as string)
+			if path in internet:
+				info = internet[path]
+				if type(info) == tuple:
+					status_code, headers, body_file = info
+					if type(body_file) == str:
+						if 'Content-Type' not in headers and '.' in body_file:
+							ext = body_file.rsplit('.', maxsplit=1)[-1]
+							if ext in mime_types:
+								headers['Content-Type'] = mime_types[ext]
+							
+						with open(body_file, mode='rb') as f:
+							body_file = f.read()
+						
+				else:
+					# A function to evaluate to get the response
+					get_params, post_params = {}, {}
+					if len(path_components) == 2:
+						get_params = parse_qs(path_components[1])
+					
+					# Parse POST parameters; currently only supports
+					# application/x-www-form-urlencoded
+					if req_body:
+						post_params = parse_qs(req_body.encode())
+
+					status_code, headers, body_file = info(self.command, get_params, post_params)
+					if type(body_file) == str:
+						body_file = body_file.encode()
+			
+				if type(status_code) != int or status_code <= 0:
+					raise Exception('Invalid status code %r' % status_code)
+				
+				for header, header_value in headers.items():
+					if type(header) != str:
+						raise Exception('Invalid header key %r' % header)
+					
+					elif type(header_value) != str:
+						raise Exception('Invalid header value %r' % header_value)
+			else:
+				status_code, headers = 404, {'Content-Type': 'text/plain'}
+				body_file = b'Handler for this URL not found.'
+		
+		except Exception as e:
+			status_code, headers, body_file = 500, {'Content-Type': 'text/plain'}, b'Internal Error:\n' + repr(e).encode()
+		
+		headers['Content-Length'] = str(len(body_file))
+		self.send_response(status_code)
+		for header, header_value in headers.items():
+			self.send_header(header, header_value)
+		
+		self.end_headers()
+		self.wfile.write(body_file)
+		
+
+
+def do_an_internet(certdir, port):
+	"""Start up the proxy/server"""
+	proxy_core.certdir = certdir
+	httpd = proxy_core.ThreadingHTTPServer(('', port), RequestHijacker)
+	httpd.serve_forever()
+
+if __name__ == '__main__':
+	import sys
+	def fail(msg, error_code):
+		print('Error:', msg)
+		print('Usage:', sys.argv[0], '[certificates directory] (port)')
+		sys.exit(error_code)
+	
+	if len(sys.argv) < 2:
+		fail('missing required argument "certificates directory".', 1)
+	
+	certdir = sys.argv[1]
+	if not proxy_core.os.path.isdir(certdir):
+		fail('selected certificate directory does not exist.', 2)
+	
+	port = sys.argv[2] if len(sys.argv) > 2 else '1337'
+	if not port.isnumeric():
+		fail('port must be an integer.', 3)
+	
+	do_an_internet(certdir, int(port))