To compress saved preferences in the URL was introduced in 5f758b2d3 and
slightly fixed in 8f4401462. But the main fail was not fixed; The decompress
function returns a binary string and this binary should first be decoded to a
string before it is passed to urllib.parse_qs.
BTW: revert the hot-fix from 5973491
Related-to: https://github.com/searxng/searxng/issues/166
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
- move jshint option from gruntfile to .jshintrc
- remove trailing-whitespace from gruntfile and
- add jshint esversion: 6
- .dir-locals.el add locals for js-mode to use JSHint from the simple theme
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
This patch disables role 'no-descending-specificity'. IMO it is better to have
this rule active (see below [1]), but it is hard to rewrite the less files to
pass this rule, so for the first I chose to disable this rule.
---
Source order is important in CSS, and when two selectors have the same
specificity, the one that occurs last will take priority. However, the situation
is different when one of the selectors has a higher specificity. In that case,
source order does not matter: the selector with higher specificity will win out
even if it comes first.
The clashes of these two mechanisms for prioritization, source order and
specificity, can cause some confusion when reading stylesheets. If a selector
with higher specificity comes before the selector it overrides, we have to think
harder to understand it, because it violates the source order
expectation. Stylesheets are most legible when overriding selectors always come
after the selectors they override. That way both mechanisms, source order and
specificity, work together nicely.
This rule enforces that practice as best it can, reporting fewer errors than it
should. It cannot catch every actual overriding selector, but it can catch
certain common mistakes.
[1] https://stylelint.io/user-guide/rules/list/no-descending-specificity/
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
This fix was autogenerated by::
npx stylelint -f unix --fix 'searx/static/themes/simple/src/less/**/*.less'
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
In the EU there exists a "General Data Protection Regulation" [1] aka GDPR (BTW:
very user friendly!) which requires consent to tracking. To get the consent
from the user, google-news requests are redirected to confirm and get a CONSENT
Cookie from https://consent.google.de/s?continue=...
This patch adds a CONSENT Cookie to the google-news request to avoid
redirection.
The behavior of the CONTENTS cookies over all google engines seems similar but
the pattern is not yet fully clear to me, here are some random samples from my
analysis ..
Using common google search from different domains::
google.com: CONSENT=YES+cb.{{date}}-14-p0.de+FX+816
google.de: CONSENT=YES+cb.{{date}}-14-p0.de+FX+333
google.fr: CONSENT=YES+srp.gws-{{date}}-0-RC2.fr+FX+826
When searching about videos (google-videos)::
google.es: CONSENT=YES+srp.gws-{{date}}-0-RC2.es+FX+076
google.de: CONSENT=YES+srp.gws-{{date}}-0-RC2.de+FX+171
Google news has only one domain for all languages::
news.google.com: CONSENT=YES+cb.{{date}}-14-p0.de+FX+816
Using google-scholar search from different domains::
scholar.google.de: CONSENT=YES+cb.{{date}}-14-p0.de+FX+333
scholar.google.fr: does not use such a cookie / did not ask the user
scholar.google.es: does not use such a cookie / did not ask the user
Interim summary:
Pattern is unclear and I won't apply the CONSENT cookie to all google engines.
More experience is need before we generalize the CONSENT cookies over all
google engines.
Related:
- e9a6ab401 [fix] youtube - send CONSENT Cookie to not be redirected
- https://github.com/benbusby/whoogle-search/issues/311
- https://github.com/benbusby/whoogle-search/issues/243
[1] https://en.wikipedia.org/wiki/General_Data_Protection_Regulation
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Since we added
- 1c67b6aec [enh] google engine: supports "default language"
there is a KeyError: 'hl in request,error pattern::
ERROR:searx.searx.search.processor.online:engine google news : exception : 'hl'
Traceback (most recent call last):
File "searx/search/processors/online.py", line 144, in search
search_results = self._search_basic(query, params)
File "searx/search/processors/online.py", line 118, in _search_basic
self.engine.request(query, params)
File "searx/engines/google_news.py", line 97, in request
if lang_info['hl'] == 'en':
KeyError: 'hl'
Closes: https://github.com/searxng/searxng/issues/154
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Before this commit, there are 3 node_modules directory:
* one in .
* two others in ./searx/statics/themes/*
This is no desirable:
* it declares the npm depdenencies in the shell script.
* dependabot can't updates theses dependencies.
* this is a not standard way to build a package (two different locations for the dependencies).
With this commit and the PR #150 there is one unique node_modules directory per theme.
This file is generated by webfont.
* It is now generated as searx/static/themes/simple/ion.less
* It is generated before the .less compilation.
* .gitignore includes this file
Add two new package depedencies: fontforge ttfautohint
See utils/searx.sh
the build of the themes updates:
* js/leaflet.js ( was leaflet/leaflet.js )
* css/leaflet.css ( was leaflet/leaflet.css )
* css/images ( was leaflet/images )
Same behaviour behaviour than Whoogle [1]. Only the google engine with the
"Default language" choice "(all)"" is changed by this patch.
When searching for a locate place, the result are in the expect language,
without missing results [2]:
> When a language is not specified, the language interpretation is left up to
> Google to decide how the search results should be delivered.
The query parameters are copied from Whoogle. With the ``all`` language:
- add parameter ``source=lnt``
- don't use parameter ``lr``
- don't add a ``Accept-Language`` HTTP header.
The new signature of function ``get_lang_info()`` is:
lang_info = get_lang_info(params, lang_list, custom_aliases, supported_any_language)
Argument ``supported_any_language`` is True for google.py and False for the other
google engines. With this patch the function now returns:
- query parameters: ``lang_info['params']``
- HTTP headers: ``lang_info['headers']``
- and as before this patch:
- ``lang_info['subdomain']``
- ``lang_info['country']``
- ``lang_info['language']``
[1] https://github.com/benbusby/whoogle-search
[2] https://github.com/benbusby/whoogle-search/releases/tag/v0.5.4
render automatically adds these variables to the template context:
* advanced_search
* all_categories
* categories
before render was checking if the variable was already set
but it is actually never set by the callers
Based on commit:
- a89b823f [mod] remove overpass API call
this patch is generated by::
make themes.all
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Loading an engine should not exit the application (*). Instead
of exit, return None.
(*) RuntimeError still exit the application: syntax error, etc...
BTW: add documentation and normalize indentation (no functional change)
Suggested-by: @dalf https://github.com/searxng/searxng/pull/116#issuecomment-851865627
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Slightly modified merge of commit [1cb1d3ac] from searx [PR 2543]:
This adds Docker Hub .. as a search engine .. the engine's favicon was
downloaded from the Docker Hub website with wget and converted to a PNG
with ImageMagick .. It supports the parsing of URLs, titles, content,
published dates, and thumbnails of Docker images.
[1cb1d3ac] https://github.com/searx/searx/pull/2543/commits/1cb1d3ac
[PR 2543] https://github.com/searx/searx/pull/2543
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
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>
To test & demonstrate this implementation download:
https://liste.mediathekview.de/filmliste-v2.db.bz2
and unpack into searx/data/filmliste-v2.db, in your settings.yml define a sqlite
engine named "demo"::
- name : demo
engine : sqlite
shortcut: demo
categories: general
result_template: default.html
database : searx/data/filmliste-v2.db
query_str : >-
SELECT title || ' (' || time(duration, 'unixepoch') || ')' AS title,
COALESCE( NULLIF(url_video_hd,''), NULLIF(url_video_sd,''), url_video) AS url,
description AS content
FROM film
WHERE title LIKE :wildcard OR description LIKE :wildcard
ORDER BY duration DESC
disabled : False
Query to test: "!demo concert"
This is a rewrite of the implementation from commit [1]
[1] searx/searx@8e90a21
Suggested-by: @virtadpt searx/searx#2808
No functional change, just some linting.
- fix messages from pylint (see below)
- log where general Exceptions are catched (broad-except)
- normalized various indentation
- To avoid clashes with common names, add prefix 'route_' to all @app.route
decorated functions.
Fixed messages::
searx/webapp.py:744:0: C0301: Line too long (146/120) (line-too-long)
searx/webapp.py:756:0: C0301: Line too long (132/120) (line-too-long)
searx/webapp.py:730:9: W0511: TODO, check if timezone is calculated right (fixme)
searx/webapp.py:1:0: C0114: Missing module docstring (missing-module-docstring)
searx/webapp.py:126:8: I1101: Module 'setproctitle' has no 'setthreadtitle' member, but source is unavailable. Consider adding this module to extension-pkg-allow-list if you want to perform analysis based on run-time introspection of living objects. (c-extension-no-member)
searx/webapp.py:126:36: W0212: Access to a protected member _name of a client class (protected-access)
searx/webapp.py:131:4: R1722: Consider using sys.exit() (consider-using-sys-exit)
searx/webapp.py:141:4: R1722: Consider using sys.exit() (consider-using-sys-exit)
searx/webapp.py:255:38: W0621: Redefining name 'request' from outer scope (line 32) (redefined-outer-name)
searx/webapp.py:307:4: W0702: No exception type(s) specified (bare-except)
searx/webapp.py:374:24: W0621: Redefining name 'theme' from outer scope (line 155) (redefined-outer-name)
searx/webapp.py:420:8: R1705: Unnecessary "else" after "return" (no-else-return)
searx/webapp.py:544:4: W0621: Redefining name 'preferences' from outer scope (line 917) (redefined-outer-name)
searx/webapp.py:551:4: W0702: No exception type(s) specified (bare-except)
searx/webapp.py:566:15: W0703: Catching too general exception Exception (broad-except)
searx/webapp.py:613:4: R1705: Unnecessary "elif" after "return" (no-else-return)
searx/webapp.py:690:8: W0621: Redefining name 'search' from outer scope (line 661) (redefined-outer-name)
searx/webapp.py:661:0: R0914: Too many local variables (22/20) (too-many-locals)
searx/webapp.py:674:8: R1705: Unnecessary "else" after "return" (no-else-return)
searx/webapp.py:697:11: W0703: Catching too general exception Exception (broad-except)
searx/webapp.py:748:4: R1705: Unnecessary "elif" after "return" (no-else-return)
searx/webapp.py:661:0: R0911: Too many return statements (9/6) (too-many-return-statements)
searx/webapp.py:661:0: R0912: Too many branches (29/12) (too-many-branches)
searx/webapp.py:661:0: R0915: Too many statements (74/50) (too-many-statements)
searx/webapp.py:931:4: W0621: Redefining name 'image_proxy' from outer scope (line 1072) (redefined-outer-name)
searx/webapp.py:946:4: W0621: Redefining name 'stats' from outer scope (line 1132) (redefined-outer-name)
searx/webapp.py:917:0: R0914: Too many local variables (34/20) (too-many-locals)
searx/webapp.py:917:0: R0912: Too many branches (19/12) (too-many-branches)
searx/webapp.py:917:0: R0915: Too many statements (65/50) (too-many-statements)
searx/webapp.py:1063:44: W0621: Redefining name 'preferences' from outer scope (line 917) (redefined-outer-name)
searx/webapp.py:1072:0: R0911: Too many return statements (9/6) (too-many-return-statements)
searx/webapp.py:1151:4: C0103: Variable name "SORT_PARAMETERS" doesn't conform to '(([a-z][a-zA-Z0-9_]{2,30})|(_[a-z0-9_]*)|([a-z]))$' pattern (invalid-name)
searx/webapp.py:1297:0: R1721: Unnecessary use of a comprehension (unnecessary-comprehension)
searx/webapp.py:1303:0: C0103: Argument name "e" doesn't conform to '(([a-z][a-zA-Z0-9_]{2,30})|(_[a-z0-9_]*))$' pattern (invalid-name)
searx/webapp.py:1303:19: W0613: Unused argument 'e' (unused-argument)
searx/webapp.py:1338:23: W0621: Redefining name 'app' from outer scope (line 162) (redefined-outer-name)
searx/webapp.py:1318:0: R0903: Too few public methods (1/2) (too-few-public-methods)
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
pylint message: wrong-import-order
Respect PEP8 import order (standard imports first, then third-party libraries,
then local imports).
pylint message: wrong-import-position
Do not mix code & imports
BTW:
- only one import per line
- replace licence text by SPDX tag
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Remove extension of the sys.path (aka PYTHONPATH). Running instance directly
from repository's folder is a relict from the early beginning in
2014 (fd651083f) and is no longer supported.
Since commit dd46629 was merged the command line 'searx-run' exists and should
be used.
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
- Use result 'alt_description' as title, if not given use
default title 'unknown'.
- Use result 'description' from unsplash as 'content'
Fix error::
DEBUG:searx:result: invalid title: {..., 'title': None, 'content': '', 'engine': 'unsplash'}
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
No functional change!
- fix messages from pylint
- add ``global THREADLOCAL``
- normalized various indentation
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Remove 'template' from result. Engine genius should
not use the video template. BTW: fix indentations
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
- pylint searx/engines/xpath.py
- fix indentation of some long lines
- add logging
- add doc-strings
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
- init stat values by None
- drop round_or_none
- don't try to get percentage if base is 'None'
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Add a new environment variable SEARX_DISABLE_ETC_SETTINGS
to disable loading of /etc/searx/settings.yml
unit tests:
* set SEARX_DISABLE_ETC_SETTINGS to 1
* remove SEARX_SETTINGS_PATH if it exists
Based on commits
- 0507e185 [fix] bar graph and rename CSS class engine-scores -> engine-score
- 3e9ad7ae [fix] make /stats more CSP compliant - github issue form
- 34859d0e [fix] make /stats more CSP compliant - oscar theme
- 0a6c4884 [fix] make /stats more CSP compliant - simple theme
- cdfb4b7f [fix] make /stats more CSP compliant - bar graph
- 965817f2 [fix] simple theme - generate missing sourceMap file
this patch is generated by::
make themes.all
Reported-by: https://github.com/searxng/searxng/issues/57
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
- drop #main_stats selector in stats.less
- 'engine-score' exists before this PR.
- untabify searx/static/themes/__common__/less/stats.less
for details see comment at: d93bec7638..1204e4f07e (r633571496)
Suggested-by: @dalf in commit 1204e4f0
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Upgraded [v3.3.0] otherwise::
` width: calc(100% - 5rem);`
becomes `width: 95%` once compiled by less version 1.4.1.
[v3.3.0] https://github.com/gruntjs/grunt-contrib-less/releases/tag/v3.0.0
Suggested-by: @dalf in commit 1204e4f0
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Make 'soft_max_redirects' configurable per Xpath engine::
- name : <engine-name>
engine : xpath
soft_max_redirects: 1
...
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
it prepares the new architecture change,
everything about multithreading in moved in the searx.search.* packages
previously the call to the "init" function of the engines was done in searx.engines:
* the network was not set (request not sent using the defined proxy)
* it requires to monkey patch the code to avoid HTTP requests during the tests
* [mod] option to enable or disable "proxy" button next to each result
Closes: https://github.com/searxng/searxng/issues/51
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Co-authored-by: Alexandre Flament <alex@al-f.net>
When there is at least one errors or one failed checker test:
* the warning icon is displayed in the reliability column
* the link "View error logs and submit a bug report" is displayed on engine name tooltip.
Before:
* the warning icon was displayed only when one or more checker test(s) failed.
* the link "View error logs and submit a bug report" was not shown when a checker test failed but there were no error.
In the preference page, in the 'about' toolbox of an engine, add a link to the
stats page of the engine, if the engine had one or more errors.
Condition is::
reliabilities[<engine.name>].errors
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Inline styles are blocked by default with Content Security Policy (CSP). Move
the inline styles from 'new_issue.html' to::
searx/static/themes/__common__/less/new_issue.less
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
File searx/static/themes/simple/less/stats.less is not used (imported) in any
other less file. I can't say when it's usage was dropped or if it has ever been
used. ATM this file is without any usage.
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
* searx.network.client.LOOP is initialized in a thread
* searx.network.__init__ imports LOOP which may happen
before the thread has initialized LOOP
This commit adds a new function "searx.network.client.get_loop()"
to fix this issue
The issue exists only in the debug log::
--- Logging error ---
Traceback (most recent call last):
File "/usr/lib/python3.9/logging/__init__.py", line 1086, in emit
stream.write(msg + self.terminator)
UnicodeEncodeError: 'ascii' codec can't encode characters in position 79-89: ordinal not in range(128)
Call stack:
File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask/app.py", line 2464, in __call__
return self.wsgi_app(environ, start_response)
File "/usr/local/searx/searx-src/searx/webapp.py", line 1316, in __call__
return self.app(environ, start_response)
File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/werkzeug/middleware/proxy_fix.py", line 169, in __call__
return self.app(environ, start_response)
File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask/app.py", line 2447, in wsgi_app
response = self.full_dispatch_request()
File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask/app.py", line 1950, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask/app.py", line 1936, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/usr/local/searx/searx-src/searx/webapp.py", line 766, in search
number_of_results=format_decimal(number_of_results),
File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask_babel/__init__.py", line 458, in format_decimal
locale = get_locale()
File "/usr/local/searx/searx-pyenv/lib/python3.9/site-packages/flask_babel/__init__.py", line 226, in get_locale
rv = babel.locale_selector_func()
File "/usr/local/searx/searx-src/searx/webapp.py", line 249, in get_locale
logger.debug("%s uses locale `%s` from %s", request.url, locale, locale_source)
Unable to print the message and arguments - possible formatting error.
Use the traceback above to help find the error.
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
- add to list of pylint scripts
- add debug log messages
- move API key int `settings.yml`
- improved readability
- add some metadata to results
Signed-off-by: Markus Heiser <markus@darmarit.de>
Springer Nature is a global publisher dedicated to providing service to research
community [1] with official API [2].
To test this PR, first get your API key following this page:
https://dev.springernature.com/signup
In searx/engines/springer.py at line 24, add this API key. I left my own key,
commented out in the line aboce. Feel free to use it, if needed.
[1] https://www.springernature.com/
[2] https://dev.springernature.com/
The new sci-hub URLs are comming from @aurora-vasiliev [1].
[1] https://github.com/searx/searx/pull/2706
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
In the EU there exists a "General Data Protection Regulation" [1] aka GDPR (BTW:
very user friendly!) which requires consent to tracking. To get the consent
from the user, youtube requests are redirected to confirm and get a CONSENT
Cookie from https://consent.youtube.com
This patch adds a CONSENT Cookie to the youtube request to avoid redirection.
[1] https://en.wikipedia.org/wiki/General_Data_Protection_Regulation
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Reported-by: https://github.com/searx/searx/issues/2774
* display the median time instead of the average.
* add a "Reliability" column (sum up the metrics and the checker results).
* the "selected language", "SafeSearch", "Time range" values are displayed as "broken" when the checker tests fail.
Some error won't stop the engine:
* additional HTTP redirects for example
* some invalid results
secondary=True allows to flag these errors as not important.
Report to the user suspended engines.
searx.search.processor.abstract:
* manages suspend time (per network).
* reports suspended time to the ResultContainer (method extend_container_if_suspended)
* adds the results to the ResultContainer (method extend_container)
* handles exceptions (method handle_exception)
Some engine do have set result.img_src, other return a result.thumbnail. If
result.img_src is unset and a result.thumbnail is given, show it to the UI.
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
I also found some items missing a thumbnail and I used text_extract for content
and title, to remove unneeded whitespaces.
BTW: added bandcamp's favicon
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
settings.yml:
* outgoing.networks:
* can contains network definition
* propertiers: enable_http, verify, http2, max_connections, max_keepalive_connections,
keepalive_expiry, local_addresses, support_ipv4, support_ipv6, proxies, max_redirects, retries
* retries: 0 by default, number of times searx retries to send the HTTP request (using different IP & proxy each time)
* local_addresses can be "192.168.0.1/24" (it supports IPv6)
* support_ipv4 & support_ipv6: both True by default
see https://github.com/searx/searx/pull/1034
* each engine can define a "network" section:
* either a full network description
* either reference an existing network
* all HTTP requests of engine use the same HTTP configuration (it was not the case before, see proxy configuration in master)
This patch is an addition to PR #2656 which removed all usage of `base_url` from
the templates, except one was forgotten in the cookie URL of the preferences.
closes: 2740
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
I can't set `default_doi_resolver` in `settings.yml` if I'm using
`use_default_settings`. Searx seems to try to interpret all settings at root
level in `settings.yml` as dict, which is correct except for
`default_doi_resolver` which is at root level and a string::
File "/usr/lib/python3.9/site-packages/searx/settings_loader.py", line 125, in load_settings
update_settings(default_settings, user_settings)
File "/usr/lib/python3.9/site-packages/searx/settings_loader.py", line 61, in update_settings
update_dict(default_settings[k], v)
File "/usr/lib/python3.9/site-packages/searx/settings_loader.py", line 48, in update_dict
for k, v in user_dict.items():
AttributeError: 'str' object has no attribute 'items'
Signed-off-by: Markus Heiser <markus@darmarit.de>
Suggested-by: @0xhtml https://github.com/searx/searx/issues/2722#issuecomment-813391659
The `url_for` function in the template context is not the one from Flask, it is
the one from `webapp`. The `webapp.url_for_theme` is different from its
namesake of Flask and has it quirks, when called with argument `_external=True`.
The `webapp.url_for_theme` can't handle absolute URLs since it pokes a leading
'/', here is the snippet of the old code::
url = url_for(endpoint, **values)
if settings['server']['base_url']:
if url.startswith('/'):
url = url[1:]
url = urljoin(settings['server']['base_url'], url)
Next drawback of (Flask's) `_external=True` is, that it will not return the HTTP
scheme when searx (the Flask app) listens on http and is proxied by a https
server.
To get the right scheme `HTTP_X_SCHEME` is needed by Flask (werkzeug). Since
this is not provided in every environment (e.g. behind Apache mod_wsgi or the
HTTP header is not fully set for some other reasons) it is recommended to
get *script_name*, *server* and *scheme* from the configured `base_url`. If
`base_url` is specified, then these values from are given preference over any
Flask's generics.
BTW this patch normalize to use `url_for` in the `opensearch.xml` and drop the
need of `host` and `urljoin` in template's context.
Signed-off-by: Markus Heiser <markus@darmarit.de>
Instead of a hard-coded `oadoi.org` default, use the default value from
`settings.yml`.
Fix an issue in the themes: The replacement 'current_doi_resolver' contains the
doi_resolver_url, not the name of the DOI resolver. Compare return value of::
searx.plugins.oa_doi_rewrite.get_doi_resolver(...)
Fix a typo in `get_doi_resolver(..)`: suggested by @kvch:
*L32 should set doi_resolver not doi_resolvers*
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
