feat: soporte dias propuestos (param d) en formulario de invitados

server.py

@@ -142,6 +142,27 @@ def invitado(n, f):
     return (n, ts) if -10 <= delta <= 14 else None
 
 
+def parse_dias(d_str):
+    """Valida una lista de timestamps separados por comas. Devuelve lista de ints o None."""
+    if not d_str:
+        return None
+    parts = str(d_str).replace(' ', '').split(',')
+    if not 1 <= len(parts) <= 10:
+        return None
+    today = datetime.date.today()
+    result = []
+    for p in parts:
+        try:
+            ts = int(p)
+            day = datetime.datetime.fromtimestamp(ts, datetime.timezone.utc).date()
+            if not (-1 <= (day - today).days <= 60):
+                return None
+            result.append(ts)
+        except (ValueError, OverflowError, OSError):
+            return None
+    return result if result else None
+
+
 class H(BaseHTTPRequestHandler):
     server_version = 'aqnsn'
 
@@ -166,8 +187,22 @@ class H(BaseHTTPRequestHandler):
         if limited(check_hits, self.client_ip(), 40):
             return self.reply(429, {'ok': False})
         q = parse_qs(urlparse(self.path).query)
-        inv = invitado(q.get('n', [''])[0], q.get('f', [''])[0])
+        n_raw = q.get('n', [''])[0]
+        f_raw = q.get('f', [''])[0]
+        d_raw = q.get('d', [''])[0]
+        if f_raw:
+            inv = invitado(n_raw, f_raw)
             return self.reply(200, {'ok': True, 'nombre': inv[0], 'cita': inv[1]} if inv else {'ok': False})
+        if d_raw:
+            n = ' '.join(str(n_raw or '').split())
+            if not n or not NAME_RE.match(n):
+                return self.reply(200, {'ok': False})
+            dias = parse_dias(d_raw)
+            if not dias:
+                return self.reply(200, {'ok': False})
+            return self.reply(200, {'ok': True, 'nombre': n,
+                                    'dias': [{'ts': ts, 'txt': cita_txt(ts)} for ts in dias]})
+        return self.reply(200, {'ok': False})
 
     def invitados(self):
         try:
@@ -181,8 +216,28 @@ class H(BaseHTTPRequestHandler):
             return self.reply(200, {'ok': True})          # trampa o demasiado rápido: no se envía
         if limited(guest_hits, self.client_ip(), 8):
             return self.reply(429, {'ok': False, 'error': 'Demasiados envíos. Inténtalo más tarde.'})
-        inv = invitado(d.get('n'), d.get('f'))
+        f_raw = str(d.get('f') or '').strip()
+        d_raw = str(d.get('d') or '').strip()
+        dia_raw = str(d.get('dia') or '').strip()
+        if f_raw:
+            inv = invitado(d.get('n'), f_raw)
             nombre, ts = inv if inv else (None, None)
+        elif d_raw and dia_raw:
+            n_val = ' '.join(str(d.get('n') or '').split())
+            if not n_val or not NAME_RE.match(n_val):
+                nombre, ts = None, None
+            else:
+                dias = parse_dias(d_raw)
+                try:
+                    dia_ts = int(dia_raw)
+                except (ValueError, TypeError):
+                    dia_ts = None
+                if dias and dia_ts is not None and dia_ts in dias:
+                    nombre, ts = n_val, dia_ts
+                else:
+                    nombre, ts = None, None
+        else:
+            nombre, ts = None, None
         if not nombre:
             return self.reply(403, {'ok': False, 'error': 'Enlace no válido o caducado.'})
         if d.get('consent') is not True: