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[enh] add settings option to enable/disable search formats

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Access to formats can be denied by settings configuration::

    search:
        formats: [html, csv, json, rss]

Closes: https://github.com/searxng/searxng/issues/95
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
This commit is contained in:
Markus Heiser 2021-05-26 19:43:27 +02:00
parent e1f244b2d5
commit 6ed4616da9
6 changed files with 81 additions and 3 deletions
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1
searx/settings.yml
View File

@ -18,6 +18,7 @@ search:
default_lang : "" # Default search language - leave blank to detect from browser information or use codes from 'languages.py'
ban_time_on_fail : 5 # ban time in seconds after engine errors
max_ban_time_on_fail : 120 # max ban time in seconds after engine errors
formats: [html, csv, json, rss] # remove format to deny access, use lower case.
server:
port : 8888

6
searx/templates/oscar/results.html
View File

@ -80,9 +80,10 @@
<input id="search_url" type="url" class="form-control select-all-on-click cursor-text" name="search_url" value="{{ search_url() }}" readonly>{{- "" -}}
</div>{{- "" -}}
</form>
{% if search_formats %}
<label>{{ _('Download results') }}</label>
<div class="clearfix"></div>
{% for output_type in ('csv', 'json', 'rss') %}
{% for output_type in search_formats %}
<form method="{{ method or 'POST' }}" action="{{ url_for('search') }}" class="form-inline pull-{% if rtl %}right{% else %}left{% endif %} result_download">
{{- search_form_attrs(pageno) -}}
<input type="hidden" name="format" value="{{ output_type }}">{{- "" -}}
@ -90,8 +91,11 @@
</form>
{% endfor %}
<div class="clearfix"></div>
{% if 'rss' in search_formats %}
<br /><label><a href="{{ search_url() }}&amp;format=rss">{{ _('RSS subscription') }}</a></label>
{% endif %}
<div class="clearfix"></div>
{% endif %}
</div>
</div>
</div><!-- /#sidebar_results -->

4
searx/templates/simple/results.html
View File

@ -85,8 +85,9 @@
<div class="selectable_url"><pre>{{ url_for('search', _external=True) }}?q={{ q|urlencode }}&amp;language={{ current_language }}&amp;time_range={{ time_range }}&amp;safesearch={{ safesearch }}{% if pageno > 1 %}&amp;pageno={{ pageno }}{% endif %}{% if selected_categories %}&amp;categories={{ selected_categories|join(",") | replace(' ','+') }}{% endif %}{% if timeout_limit %}&amp;timeout_limit={{ timeout_limit|urlencode }}{% endif %}</pre></div>
</div>
<div id="apis">
{% if search_formats %}
<h4 class="title">{{ _('Download results') }}</h4>
{% for output_type in ('csv', 'json', 'rss') %}
{% for output_type in search_formats %}
<div class="left">
<form method="{{ method or 'POST' }}" action="{{ url_for('search') }}">
<input type="hidden" name="q" value="{{ q|e }}">
@ -103,6 +104,7 @@
</form>
</div>
{% endfor %}
{% endif %}
</div>
</div>

57
searx/utils.py
View File

@ -8,6 +8,7 @@ from os.path import splitext, join
from random import choice
from html.parser import HTMLParser
from urllib.parse import urljoin, urlparse
from collections.abc import Mapping
from lxml import html
from lxml.etree import ElementBase, XPath, XPathError, XPathSyntaxError, _ElementStringResult, _ElementUnicodeResult
@ -500,6 +501,62 @@ def get_engine_from_settings(name):
return {}
NOT_EXISTS = object()
"""Singleton used by :py:obj:`get_value` if a key does not exists."""
def get_value(dictionary, keyword, *keys, default=NOT_EXISTS):
"""Return the value from a *deep* mapping type (e.g. the ``settings`` object
from yaml). If the path to the *key* does not exists a :py:obj:`NOT_EXISTS`
is returned (non ``KeyError`` exception is raised).
.. code: python
>>> from searx.utils import get_value, NOT_EXISTS
>>> get_value(settings, 'checker', 'additional_tests', 'rosebud', 'result_container')
['not_empty', ['one_title_contains', 'citizen kane']]
>>> get_value(settings, 'search', 'xxx') is NOT_EXISTS
True
>>> get_value(settings, 'search', 'formats')
['csv', 'json', 'rss']
The list returned from the ``search.format`` key is not a mapping type, you
can't traverse along non-mapping types. If you try it, you will get a
:py:ref:`NOT_EXISTS`:
.. code: python
>>> get_value(settings, 'search', 'format', 'csv') is NOT_EXISTS
True
>>> get_value(settings, 'search', 'formats')[0]
'csv'
For convenience you can replace :py:ref:`NOT_EXISTS` by a default value of
your choice:
.. code: python
if 'csv' in get_value(settings, 'search', 'formats', default=[]):
print("csv format is denied")
"""
if not isinstance(dictionary, Mapping):
raise TypeError("expected mapping type, got %s" % type(dictionary))
ret_val = dictionary.get(keyword, default)
if ret_val is default:
return ret_val
if len(keys):
if not isinstance(ret_val, Mapping):
ret_val = default
else:
ret_val = get_value(ret_val, *keys, default=default)
return ret_val
def get_xpath(xpath_spec):
"""Return cached compiled XPath

15
searx/webapp.py
View File

@ -31,6 +31,8 @@ from pygments.formatters import HtmlFormatter # pylint: disable=no-name-in-modu
from werkzeug.middleware.proxy_fix import ProxyFix
from werkzeug.serving import WSGIRequestHandler
import flask
from flask import (
Flask,
request,
@ -86,6 +88,7 @@ from searx.utils import (
gen_useragent,
dict_subset,
match_language,
get_value,
)
from searx.version import VERSION_STRING
from searx.query import RawTextQuery
@ -161,6 +164,8 @@ for indice, theme in enumerate(themes):
for (dirpath, dirnames, filenames) in os.walk(theme_img_path):
global_favicons[indice].extend(filenames)
OUTPUT_FORMATS = ['html', 'csv', 'json', 'rss']
STATS_SORT_PARAMETERS = {
'name': (False, 'name', ''),
'score': (True, 'score', 0),
@ -511,6 +516,11 @@ def render(template_name, override_theme=None, **kwargs):
kwargs['preferences'] = request.preferences
kwargs['search_formats'] = [
x for x in get_value(
settings, 'search', 'formats', default=OUTPUT_FORMATS)
if x != 'html']
kwargs['brand'] = brand
kwargs['translations'] = json.dumps(get_translations(), separators=(',', ':'))
@ -683,9 +693,12 @@ def search():
# output_format
output_format = request.form.get('format', 'html')
if output_format not in ['html', 'csv', 'json', 'rss']:
if output_format not in OUTPUT_FORMATS:
output_format = 'html'
if output_format not in get_value(settings, 'search', 'formats', default=OUTPUT_FORMATS):
flask.abort(403)
# check if there is query (not None and not an empty string)
if not request.form.get('q'):
if output_format == 'html':

1
utils/templates/etc/searx/use_default_settings.yml
View File

@ -8,6 +8,7 @@ search:
safe_search : 0 # Filter results. 0: None, 1: Moderate, 2: Strict
autocomplete : "" # Existing autocomplete backends: "dbpedia", "duckduckgo", "google", "startpage", "swisscows", "qwant", "wikipedia" - leave blank to turn it off by default
default_lang : "" # Default search language - leave blank to detect from browser information or use codes from 'languages.py'
formats: [html, csv, json, rss]
server:
port : 8888