searxng/searx/user_help.py

40 lines
1.3 KiB
Python

from typing import Dict
import os.path
import pkg_resources
import flask
import mistletoe
from . import get_setting
from .version import GIT_URL
HELP: Dict[str, str] = {}
""" Maps a filename under help/ without the file extension to the rendered HTML. """
def render(app: flask.Flask):
"""
Renders the user documentation. Must be called after all Flask routes have been
registered, because the documentation might try to link to them with Flask's `url_for`.
We render the user documentation once on startup to improve performance.
"""
for filename in pkg_resources.resource_listdir(__name__, 'help'):
rootname, ext = os.path.splitext(filename)
if ext != '.md':
continue
text = pkg_resources.resource_string(__name__, 'help/' + filename).decode()
base_url = get_setting('server.base_url') or None
# we specify base_url so that url_for works for base_urls that have a non-root path
with app.test_request_context(base_url=base_url):
# the request context is needed for Flask's url_for
# (otherwise we'd need to set app.config['SERVER_NAME'],
# which we don't want)
interpolated = flask.render_template_string(text, get_setting=get_setting, searx_git_url=GIT_URL)
HELP[rootname] = mistletoe.markdown(interpolated)