Proyecto LCX Dispatcharr multicuenta

dispatcharr/utils.py

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+# dispatcharr/utils.py
+import json
+import ipaddress
+from django.http import JsonResponse
+from django.core.exceptions import ValidationError
+from core.models import CoreSettings, NETWORK_ACCESS_KEY
+
+
+def json_error_response(message, status=400):
+    """Return a standardized error JSON response."""
+    return JsonResponse({"success": False, "error": message}, status=status)
+
+
+def json_success_response(data=None, status=200):
+    """Return a standardized success JSON response."""
+    response = {"success": True}
+    if data is not None:
+        response.update(data)
+    return JsonResponse(response, status=status)
+
+
+def validate_logo_file(file):
+    """Validate uploaded logo file size and MIME type."""
+    valid_mime_types = ["image/jpeg", "image/png", "image/gif", "image/webp", "image/svg+xml"]
+    if file.content_type not in valid_mime_types:
+        raise ValidationError("Unsupported file type. Allowed types: JPEG, PNG, GIF, WebP, SVG.")
+    if file.size > 5 * 1024 * 1024:  # 5MB
+        raise ValidationError("File too large. Max 5MB.")
+
+
+def get_client_ip(request):
+    x_forwarded_for = request.META.get("HTTP_X_REAL_IP")
+    if x_forwarded_for:
+        # X-Forwarded-For can be a comma-separated list of IPs
+        ip = x_forwarded_for.split(",")[0].strip()
+    else:
+        ip = request.META.get("REMOTE_ADDR")
+    return ip
+
+
+def network_access_allowed(request, settings_key):
+    try:
+        network_access = CoreSettings.objects.get(key=NETWORK_ACCESS_KEY).value
+    except CoreSettings.DoesNotExist:
+        network_access = {}
+    local_cidrs = ["127.0.0.0/8", "10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16", "::1/128", "fc00::/7", "fe80::/10"]
+    # Set defaults based on endpoint type
+    if settings_key == "M3U_EPG":
+        # M3U/EPG endpoints: local IPv4 and IPv6 only by default
+        default_cidrs = local_cidrs
+    else:
+        # Other endpoints: allow all by default
+        default_cidrs = ["0.0.0.0/0", "::/0"]
+
+    cidrs = (
+        network_access[settings_key].split(",")
+        if settings_key in network_access
+        else default_cidrs
+    )
+
+    network_allowed = False
+    client_ip = ipaddress.ip_address(get_client_ip(request))
+    for cidr in cidrs:
+        network = ipaddress.ip_network(cidr)
+        if client_ip in network:
+            network_allowed = True
+            break
+
+    return network_allowed