single-command startup

app.py now auto-starts the gateway HTTP server in a daemon thread,
so users only need `python app.py` to get everything running. The
gateway calls dispatch_request directly when co-located (local mode)
instead of trying to establish an RNS link to itself. Bookmarklet
hardcoded to localhost:8080. gateway.py still works standalone for
connecting to remote instances.

app.py

@@ -1,9 +1,12 @@
 import os
 import time
+import threading
 import RNS
+from http.server import HTTPServer
 
 from db import init_db
 from handlers import dispatch_request
+from gateway import GatewayState, GatewayHandler, GATEWAY_PORT
 
 APP_NAME = "tinyweb"
 ASPECTS = ["server"]
@@ -24,6 +27,14 @@ def rns_request_handler(path, data, request_id, link_id, remote_identity, reques
     return dispatch_request(data)
 
 
+def start_gateway(reticulum):
+    GatewayState.reticulum = reticulum
+    GatewayState.local_dispatch = dispatch_request
+    server = HTTPServer(("127.0.0.1", GATEWAY_PORT), GatewayHandler)
+    thread = threading.Thread(target=server.serve_forever, daemon=True)
+    thread.start()
+
+
 def main():
     init_db()
     reticulum = RNS.Reticulum()
@@ -44,10 +55,11 @@ def main():
     )
 
     destination.announce()
+    start_gateway(reticulum)
 
-    print(f"TinyWeb Reticulum server running")
+    print(f"TinyWeb running!")
-    print(f"Destination hash: {RNS.prettyhexrep(destination.hash)}")
+    print(f"Open http://localhost:{GATEWAY_PORT} in your browser")
-    print(f"Share this hash with clients to connect via gateway.py")
+    print(f"Destination hash: {RNS.prettyhexrep(destination.hash)} (share this so friends can subscribe)")
 
     while True:
         time.sleep(1)

gateway.py

@@ -16,6 +16,7 @@ class GatewayState:
     destination = None
     link = None
     link_lock = threading.Lock()
+    local_dispatch = None  # set when running inside app.py
 
 
 def resolve_destination(dest_hash_hex):
@@ -83,6 +84,9 @@ class GatewayHandler(BaseHTTPRequestHandler):
         }
 
         try:
+            if GatewayState.local_dispatch:
+                resp = GatewayState.local_dispatch(request_data)
+            else:
                 link = ensure_link()
                 receipt = link.request(
                     "/tinyweb",
@@ -99,6 +103,13 @@ class GatewayHandler(BaseHTTPRequestHandler):
 
                 if receipt.get_status() in (RNS.RequestReceipt.READY, RNS.RequestReceipt.DELIVERED):
                     resp = receipt.get_response()
+                elif receipt.get_status() == RNS.RequestReceipt.FAILED:
+                    self.send_error(504, "Request to TinyWeb server failed")
+                    return
+                else:
+                    self.send_error(504, "Request to TinyWeb server timed out")
+                    return
+
             self.send_response(resp["status"])
             self.send_header("Content-Type", resp.get("content_type", "text/html; charset=utf-8"))
             for k, v in resp.get("headers", {}).items():
@@ -107,10 +118,6 @@ class GatewayHandler(BaseHTTPRequestHandler):
             resp_body = resp.get("body", "")
             if resp_body:
                 self.wfile.write(resp_body.encode() if isinstance(resp_body, str) else resp_body)
-            elif receipt.get_status() == RNS.RequestReceipt.FAILED:
-                self.send_error(504, "Request to TinyWeb server failed")
-            else:
-                self.send_error(504, "Request to TinyWeb server timed out")
 
         except ConnectionError as e:
             GatewayState.link = None

handlers.py

@@ -308,12 +308,11 @@ def handle_import_submit(body):
     return handle_import_form(f"Imported {imported} page(s). {errors} error(s).")
 
 
-def handle_style_form(msg="", gateway_host=""):
+def handle_style_form(msg=""):
     css = get_setting("custom_css")
     name = get_site_name()
     sharing = get_setting("sharing_enabled", "0")
     checked = " checked" if sharing == "1" else ""
-    host = gateway_host or "localhost:8080"
     return _respond(
         f"<h1>customize</h1>"
         f"<h2>name your search engine</h2>"
@@ -340,7 +339,7 @@ def handle_style_form(msg="", gateway_host=""):
         f"</form>"
         f"<h2>bookmarklet</h2>"
         f"<p>Drag this link to your bookmarks bar. Click it on any page to index it instantly.</p>"
-        f'<p><a href="javascript:void(fetch(\'http://{esc(host)}/bookmark?url=\'+encodeURIComponent(location.href)).then(r=>r.text()).then(t=>alert(t)).catch(()=>alert(\'tinyweb not running\')))">+ save to {esc(name)}</a></p>'
+        f'<p><a href="javascript:void(fetch(\'http://localhost:8080/bookmark?url=\'+encodeURIComponent(location.href)).then(r=>r.text()).then(t=>alert(t)).catch(()=>alert(\'tinyweb not running\')))">+ save to {esc(name)}</a></p>'
         f"<p>{msg}</p>"
         f'<a href="/">back</a>'
     )
@@ -651,7 +650,7 @@ def dispatch_request(data):
         elif path == "/bookmark":
             return handle_bookmark(query)
         elif path == "/style":
-            return handle_style_form(gateway_host=gateway_host)
+            return handle_style_form()
         elif path == "/export":
             return handle_export()
         elif path == "/import":