Fix BASE_URL support #760
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Fix BASE_URL support #760
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jaredledvina
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Previously BASE_URL only applied when base_url was empty in the database, leaving users with incorrect values unable to recover without manual database editing. Now BASE_URL environment variable always overrides the database value when set, providing a recovery path for misconfigured deployments.
Flask routes are registered at paths like /setup, but when BASE_URL is configured, requests arrive as /huntarr/setup. Added BaseURLMiddleware to strip the BASE_URL prefix from request paths before Flask routing occurs, allowing routes to be found correctly. Also normalized BASE_URL handling with helper functions to consistently handle edge cases like '/', whitespace, and multiple slashes.
Updated all redirect calls to prepend BASE_URL when redirecting to setup, login, and user pages. This ensures redirects work correctly when the application is deployed under a reverse proxy subpath. Fixes redirect loops that occurred when BASE_URL was configured.
Updated cycle countdown timer to use window.HUNTARR_BASE_URL when constructing API URLs, ensuring API calls work correctly when BASE_URL is configured for reverse proxy deployments.
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Signed-off-by: Jared Ledvina <jared@techsmix.net>
Signed-off-by: Jared Ledvina <jared@techsmix.net>
This was referenced Dec 24, 2025
Admin9705
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Core Changes: - Add WSGI middleware to strip BASE_URL prefix before Flask routing - Centralize base URL logic with get_base_url_path() helper - Update environment variable to always override DB settings (Docker best practice) - Improve path checking to use startswith() instead of 'in' operator - Update all redirects to use centralized base URL helper Backend Updates: - web_server.py: Add BaseURLMiddleware class for proper subpath handling - auth.py: Add get_base_url_path() helper, update authenticate_request() path checks - routes/common.py: Simplify redirect logic using base URL helper - plex_auth_routes.py: Update Plex callback redirects - settings_manager.py: Environment variable now always overrides DB setting Frontend Updates: - cycle-countdown.js: Use window.HUNTARR_BASE_URL for API calls - Already has frontend injection in templates (index.html, login.html, etc.) Architecture: - WSGI middleware strips /huntarr from /huntarr/api/logs → Flask sees /api/logs - Industry-standard pattern for subpath deployments - No route modifications needed - middleware handles everything - Environment variable precedence follows Docker/k8s best practices Fixes: #649, #732 Related: #130 Testing: - Standard Docker deployment (no BASE_URL) - Docker with BASE_URL=/huntarr - BASE_URL changes via env var - All redirects and API calls Refinements over original PR: - Changed 'in' operator to startswith() for more precise path matching - Consistent base URL helper used throughout codebase - Simplified redirect logic (removed repetitive inline base URL logic)
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Patched via - https://github.com/plexguide/Huntarr.io/releases/tag/8.2.17 - thanks again! |
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Resolves #649, #732
Related to #130
This PR updates the overall logic around the
BASE_URLparameter. I've built Hunter off this branch and am running it. So far, it looks like this will completely restore the BASE_URL support so that it works as intended. See the commits for a break down for each of the bits.I've locally tested this change with
BASE_URLset tohuntarr, changing tohuntarrtesting, and then to''and confirmed that in all 3 cases it works and adjusts the base path each time. I also dropped the env variable and confirmed that the DB saved the latest config and used that appropriately.