patch the wsgi application environ to support sub-URLs, add a master ENV var to set a sub-URL, tweak SASS and README to match, actually resolves #255

README.md

@@ -358,8 +358,7 @@ useful if you are manually installing TubeSync in some other environment. These
 | Name                     | What                                                         | Example                              |
 | ------------------------ | ------------------------------------------------------------ | ------------------------------------ |
 | DJANGO_SECRET_KEY        | Django's SECRET_KEY                                          | YJySXnQLB7UVZw2dXKDWxI5lEZaImK6l     |
-| DJANGO_FORCE_SCRIPT_NAME | Django's FORCE_SCRIPT_NAME                                   | /somepath/                           |
+| DJANGO_URL_PREFIX        | Run TubeSync in a sub-URL on the web server                  | /somepath/                           |
-| DJANGO_STATIC_URL        | Django's STATIC_URL (set with FORCE_SCRIPT_NAME)             | /somepath/static/                    |
 | TUBESYNC_DEBUG           | Enable debugging                                             | True                                 |
 | TUBESYNC_WORKERS         | Number of background workers, default is 2, max allowed is 8 | 2                                    |
 | TUBESYNC_HOSTS           | Django's ALLOWED_HOSTS, defaults to `*`                      | tubesync.example.com,otherhost.com   |

tubesync/common/static/styles/_fonts.scss

@@ -1,20 +1,20 @@
 @font-face {
     font-family: 'roboto-light';
-    src: url('/static/fonts/roboto/roboto-light.woff') format('woff');
+    src: url('../fonts/roboto/roboto-light.woff') format('woff');
     font-weight: normal;
     font-style: normal;
 }
 
 @font-face {
     font-family: 'roboto-regular';
-    src: url('/static/fonts/roboto/roboto-regular.woff') format('woff');
+    src: url('../fonts/roboto/roboto-regular.woff') format('woff');
     font-weight: normal;
     font-style: normal;
 }
 
 @font-face {
     font-family: 'roboto-bold';
-    src: url('/static/fonts/roboto/roboto-bold.woff') format('woff');
+    src: url('../fonts/roboto/roboto-bold.woff') format('woff');
     font-weight: bold;
     font-style: normal;
 }

tubesync/tubesync/local_settings.py.container

@@ -1,5 +1,6 @@
 import os
 from pathlib import Path
+from urllib.parse import urljoin
 from common.logger import log
 from common.utils import parse_database_connection_string
 
@@ -8,7 +9,10 @@ BASE_DIR = Path(__file__).resolve().parent.parent
 ROOT_DIR = Path('/')
 CONFIG_BASE_DIR = ROOT_DIR / 'config'
 DOWNLOADS_BASE_DIR = ROOT_DIR / 'downloads'
+DJANGO_URL_PREFIX = os.getenv('DJANGO_URL_PREFIX', None)
 STATIC_URL = str(os.getenv('DJANGO_STATIC_URL', '/static/'))
+if DJANGO_URL_PREFIX and STATIC_URL:
+    STATIC_URL = urljoin(DJANGO_URL_PREFIX, STATIC_URL[1:])
 
 
 # This is not ever meant to be a public web interface so this isn't too critical
@@ -18,7 +22,7 @@ SECRET_KEY = str(os.getenv('DJANGO_SECRET_KEY', 'tubesync-django-secret'))
 ALLOWED_HOSTS_STR = str(os.getenv('TUBESYNC_HOSTS', '*'))
 ALLOWED_HOSTS = ALLOWED_HOSTS_STR.split(',')
 DEBUG = True if os.getenv('TUBESYNC_DEBUG', False) else False
-FORCE_SCRIPT_NAME = os.getenv('DJANGO_FORCE_SCRIPT_NAME', None)
+FORCE_SCRIPT_NAME = os.getenv('DJANGO_FORCE_SCRIPT_NAME', DJANGO_URL_PREFIX)
 
 
 TIME_ZONE = os.getenv('TZ', 'UTC')

tubesync/tubesync/wsgi.py

@@ -1,6 +1,25 @@
 import os
+from urllib.parse import urljoin
 from django.core.wsgi import get_wsgi_application
 
 
 os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tubesync.settings')
-application = get_wsgi_application()
+DJANGO_URL_PREFIX = os.getenv('DJANGO_URL_PREFIX', None)
+_application = get_wsgi_application()
+
+
+def application(environ, start_response):
+    script_name = None
+    if DJANGO_URL_PREFIX:
+        if DJANGO_URL_PREFIX.endswith('/'):
+            script_name = DJANGO_URL_PREFIX
+        else:
+            raise Exception(f'DJANGO_URL_PREFIX must end with a /, '
+                            f'got: {DJANGO_URL_PREFIX}')
+    if script_name:
+        static_url = urljoin(script_name, 'static/')
+        environ['SCRIPT_NAME'] = script_name
+        path_info = environ['PATH_INFO']
+        if path_info.startswith(script_name) and not path_info.startswith(static_url):
+            environ['PATH_INFO'] = path_info[len(script_name):]
+    return _application(environ, start_response)