v2.26.5: fix database errors crashing entire UI (#190)

get_setting() now catches sqlite3.OperationalError and returns the
default value. Previously, an inaccessible database (e.g. root-owned
instance/ from sudo) caused inject_offline_settings to crash every
page render with 500 Internal Server Error.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -2,6 +2,13 @@
 
 All notable changes to iNTERCEPT will be documented in this file.
 
+## [2.26.5] - 2026-03-14
+
+### Fixed
+- **Database errors crash entire UI** — `get_setting()` now catches `sqlite3.OperationalError` and returns the default value instead of propagating the exception. Previously, if the database was inaccessible (e.g. root-owned `instance/` directory from running with `sudo`), the `inject_offline_settings` context processor would crash every page render with a 500 Internal Server Error. (#190)
+
+---
+
 ## [2.26.4] - 2026-03-14
 
 ### Fixed

config.py

@@ -7,10 +7,17 @@ import os
 import sys
 
 # Application version
-VERSION = "2.26.4"
+VERSION = "2.26.5"
 
 # Changelog - latest release notes (shown on welcome screen)
 CHANGELOG = [
+    {
+        "version": "2.26.5",
+        "date": "March 2026",
+        "highlights": [
+            "Fix database errors crashing the entire UI — pages now degrade gracefully",
+        ]
+    },
     {
         "version": "2.26.4",
         "date": "March 2026",

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "intercept"
-version = "2.26.4"
+version = "2.26.5"
 description = "Signal Intelligence Platform - Pager/433MHz/ADS-B/Satellite/WiFi/Bluetooth"
 readme = "README.md"
 requires-python = ">=3.9"

utils/database.py

@@ -661,6 +661,7 @@ def get_setting(key: str, default: Any = None) -> Any:
     Returns:
         Setting value (auto-converted from JSON for complex types)
     """
+    try:
         with get_db() as conn:
             cursor = conn.execute(
                 'SELECT value, value_type FROM settings WHERE key = ?',
@@ -687,6 +688,9 @@ def get_setting(key: str, default: Any = None) -> Any:
                 return value.lower() in ('true', '1', 'yes')
             else:
                 return value
+    except sqlite3.OperationalError:
+        logger.warning("Database unavailable reading setting '%s', using default", key)
+        return default
 
 
 def set_setting(key: str, value: Any) -> None: