micropython: add micropython component

components/language/micropython/extmod/webrepl/webrepl.py

@@ -0,0 +1,86 @@
+# This module should be imported from REPL, not run from command line.
+import socket
+import uos
+import network
+import uwebsocket
+import websocket_helper
+import _webrepl
+
+listen_s = None
+client_s = None
+
+
+def setup_conn(port, accept_handler):
+    global listen_s
+    listen_s = socket.socket()
+    listen_s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+
+    ai = socket.getaddrinfo("0.0.0.0", port)
+    addr = ai[0][4]
+
+    listen_s.bind(addr)
+    listen_s.listen(1)
+    if accept_handler:
+        listen_s.setsockopt(socket.SOL_SOCKET, 20, accept_handler)
+    for i in (network.AP_IF, network.STA_IF):
+        iface = network.WLAN(i)
+        if iface.active():
+            print("WebREPL daemon started on ws://%s:%d" % (iface.ifconfig()[0], port))
+    return listen_s
+
+
+def accept_conn(listen_sock):
+    global client_s
+    cl, remote_addr = listen_sock.accept()
+    prev = uos.dupterm(None)
+    uos.dupterm(prev)
+    if prev:
+        print("\nConcurrent WebREPL connection from", remote_addr, "rejected")
+        cl.close()
+        return
+    print("\nWebREPL connection from:", remote_addr)
+    client_s = cl
+    websocket_helper.server_handshake(cl)
+    ws = uwebsocket.websocket(cl, True)
+    ws = _webrepl._webrepl(ws)
+    cl.setblocking(False)
+    # notify REPL on socket incoming data (ESP32/ESP8266-only)
+    if hasattr(uos, "dupterm_notify"):
+        cl.setsockopt(socket.SOL_SOCKET, 20, uos.dupterm_notify)
+    uos.dupterm(ws)
+
+
+def stop():
+    global listen_s, client_s
+    uos.dupterm(None)
+    if client_s:
+        client_s.close()
+    if listen_s:
+        listen_s.close()
+
+
+def start(port=8266, password=None, accept_handler=accept_conn):
+    stop()
+    webrepl_pass = password
+    if webrepl_pass is None:
+        try:
+            import webrepl_cfg
+
+            webrepl_pass = webrepl_cfg.PASS
+        except:
+            print("WebREPL is not configured, run 'import webrepl_setup'")
+
+    _webrepl.password(webrepl_pass)
+    s = setup_conn(port, accept_handler)
+
+    if accept_handler is None:
+        print("Starting webrepl in foreground mode")
+        accept_conn(s)
+    elif password is None:
+        print("Started webrepl in normal mode")
+    else:
+        print("Started webrepl in manual override mode")
+
+
+def start_foreground(port=8266, password=None):
+    start(port, password, None)