webrepl: Support LAN interfaces and fix WLAN AttributeError.

On ports without network.WLAN (such as the ESP32-P4 port), webrepl
crashes on webrepl.start() because network.WLAN is accessed
unconditionally in setup_conn().

Add LAN interface support, add try/except around LAN and WLAN access,
and add fallback to 0.0.0.0:<port> if no active interface is found.

Based on #920 by @Romaric-RILLET.

Signed-off-by: AsinoEsel <lerefff@gmail.com>

Author: AsinoEsel

micropython/net/webrepl/manifest.py

@@ -1,4 +1,4 @@
-metadata(description="WebREPL server.", version="0.1.0")
+metadata(description="WebREPL server.", version="0.1.1")
 
 module("webrepl.py", opt=3)
 module("webrepl_setup.py", opt=3)

micropython/net/webrepl/webrepl.py

@@ -102,10 +102,23 @@ def setup_conn(port, accept_handler):
     listen_s.listen(1)
     if accept_handler:
         listen_s.setsockopt(socket.SOL_SOCKET, 20, accept_handler)
-    for i in (network.WLAN.IF_AP, network.WLAN.IF_STA):
-        iface = network.WLAN(i)
-        if iface.active():
-            print("WebREPL server started on http://%s:%d/" % (iface.ifconfig()[0], port))
+    for i in (0, 1):
+        try:
+            iface = network.LAN(i)
+            if iface.active():
+                print("WebREPL server started on http://%s:%d/" % (iface.ifconfig()[0], port))
+                return listen_s
+        except (AttributeError, TypeError, ValueError):
+            pass
+    try:
+        for i in (network.WLAN.IF_AP, network.WLAN.IF_STA):
+            iface = network.WLAN(i)
+            if iface.active():
+                print("WebREPL server started on http://%s:%d/" % (iface.ifconfig()[0], port))
+                return listen_s
+    except AttributeError:
+        pass
+    print("WebREPL server started on http://0.0.0.0:%d/" % port)
     return listen_s