add pathod

1 files changed, 56 insertions, 0 deletions

diff --git a/pathod/libpathod/protocols/websockets.py b/pathod/libpathod/protocols/websockets.py
new file mode 100644
index 00000000..134d27bc
--- /dev/null
+++ b/pathod/libpathod/protocols/websockets.py
@@ -0,0 +1,56 @@
+import time
+
+from netlib import websockets
+from .. import language
+from netlib.exceptions import NetlibException
+
+
+class WebsocketsProtocol:
+
+    def __init__(self, pathod_handler):
+        self.pathod_handler = pathod_handler
+
+    def handle_websocket(self, logger):
+        while True:
+            with logger.ctx() as lg:
+                started = time.time()
+                try:
+                    frm = websockets.Frame.from_file(self.pathod_handler.rfile)
+                except NetlibException as e:
+                    lg("Error reading websocket frame: %s" % e)
+                    break
+                ended = time.time()
+                lg(frm.human_readable())
+            retlog = dict(
+                type="inbound",
+                protocol="websockets",
+                started=started,
+                duration=ended - started,
+                frame=dict(
+                ),
+                cipher=None,
+            )
+            if self.pathod_handler.ssl_established:
+                retlog["cipher"] = self.pathod_handler.get_current_cipher()
+            self.pathod_handler.addlog(retlog)
+            ld = language.websockets.NESTED_LEADER
+            if frm.payload.startswith(ld):
+                nest = frm.payload[len(ld):]
+                try:
+                    wf_gen = language.parse_websocket_frame(nest)
+                except language.exceptions.ParseException as v:
+                    logger.write(
+                        "Parse error in reflected frame specifcation:"
+                        " %s" % v.msg
+                    )
+                    return None, None
+                for frm in wf_gen:
+                    with logger.ctx() as lg:
+                        frame_log = language.serve(
+                            frm,
+                            self.pathod_handler.wfile,
+                            self.pathod_handler.settings
+                        )
+                        lg("crafting websocket spec: %s" % frame_log["spec"])
+                        self.pathod_handler.addlog(frame_log)
+        return self.handle_websocket, None