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Update server.py

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Namhyeon Go 2024-02-19 02:05:28 +09:00 committed by GitHub
parent 54a959f14a
commit 4985383556
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1 changed files with 18 additions and 15 deletions
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server.py
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@ -217,23 +217,25 @@ def proxy_server(webserver, port, scheme, method, url, conn, addr, data):
raise Exception("SSL negotiation failed. (%s:%s) %s" % (webserver.decode(client_encoding), str(port), str(e))) raise Exception("SSL negotiation failed. (%s:%s) %s" % (webserver.decode(client_encoding), str(port), str(e)))
# Wait to see if there is more data to transmit # Wait to see if there is more data to transmit
if len(data) == buffer_size: def sendall(sock, data):
if len(data) < buffer_size:
return
buffered = b''
conn.settimeout(1) conn.settimeout(1)
while True: while True:
try: try:
chunk = conn.recv(buffer_size) chunk = conn.recv(buffer_size)
if not chunk: if not chunk:
break break
data += chunk buffered += chunk
if proxy_check_filtered(buffered, webserver, port, scheme, method, url):
raise Exception("Filtered request")
if len(buffered) > buffer_size:
buffered = buffered[:-buffer_size] # reduce memory usage
except: except:
break break
# check requested data
if proxy_check_filtered(data, webserver, port, scheme, method, url):
conn.sendall(b"HTTP/1.1 403 Forbidden\n\n{\"status\":403}")
conn.close()
return
# do response # do response
if server_url == "localhost": if server_url == "localhost":
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
@ -245,10 +247,12 @@ def proxy_server(webserver, port, scheme, method, url, conn, addr, data):
sock = context.wrap_socket(sock, server_hostname=webserver.decode(client_encoding)) sock = context.wrap_socket(sock, server_hostname=webserver.decode(client_encoding))
sock.connect((webserver, port)) sock.connect((webserver, port))
sock.sendall(data) #sock.sendall(data)
sendall(sock, data)
else: else:
sock.connect((webserver, port)) sock.connect((webserver, port))
sock.sendall(data) #sock.sendall(data)
sendall(sock, data)
i = 0 i = 0
buffered = b'' buffered = b''
@ -259,8 +263,7 @@ def proxy_server(webserver, port, scheme, method, url, conn, addr, data):
buffered += chunk buffered += chunk
if proxy_check_filtered(buffered, webserver, port, scheme, method, url): if proxy_check_filtered(buffered, webserver, port, scheme, method, url):
add_filtered_host(webserver.decode(client_encoding), '127.0.0.1') add_filtered_host(webserver.decode(client_encoding), '127.0.0.1')
conn.sendall(b"HTTP/1.1 403 Forbidden\n\n{\"status\":403}") raise Exception("Filtered response")
break
conn.send(chunk) conn.send(chunk)
if len(buffered) > buffer_size: if len(buffered) > buffer_size:
buffered = buffered[:-buffer_size] # reduce memory usage buffered = buffered[:-buffer_size] # reduce memory usage
@ -297,8 +300,7 @@ def proxy_server(webserver, port, scheme, method, url, conn, addr, data):
buffered += chunk buffered += chunk
if proxy_check_filtered(buffered, webserver, port, scheme, method, url): if proxy_check_filtered(buffered, webserver, port, scheme, method, url):
add_filtered_host(webserver.decode(client_encoding), '127.0.0.1') add_filtered_host(webserver.decode(client_encoding), '127.0.0.1')
conn.sendall(b"HTTP/1.1 403 Forbidden\n\n{\"status\":403}") raise Exception("Filtered response")
break
conn.send(chunk) conn.send(chunk)
if len(buffered) > buffer_size: if len(buffered) > buffer_size:
buffered = buffered[:-buffer_size] # reduce memory usage buffered = buffered[:-buffer_size] # reduce memory usage
@ -310,7 +312,8 @@ def proxy_server(webserver, port, scheme, method, url, conn, addr, data):
conn.close() conn.close()
except Exception as e: except Exception as e:
print(traceback.format_exc()) print(traceback.format_exc())
print("[*] Exception on requesting the data. Because of %s" % (str(e))) print("[*] Exception on requesting the data. Cause: %s" % (str(e)))
conn.sendall(b"HTTP/1.1 403 Forbidden\n\n{\"status\":403}")
conn.close() conn.close()
# journaling a filtered hosts # journaling a filtered hosts