Commit Graph

76 Commits

Author SHA1 Message Date
Markus Heiser 9197efa2a7 [fix] duckduckgo lite engine: set HTTP header 'Referer'
We have had problems with this before, the bot protection from ddg-lite seems to
have included this referer in the rating [1][2].

From reverse engineering:

- The Referer ``https://google.com/`` was set in commt 257dc7d6c4 --> DDG lite
  does not like this referer anymore!

- The 'Referer' header is only set on second and follow up pages but not on the
  first page

- The vqd value is not needed on the first page, the ddg-lite client sets this
  value only on follow up pages / this can help to reduce the vqd requests from
  SearXNG.

Related to 'Referer' header & ddg requests:

[1] https://github.com/searxng/searxng/pull/2161
[2] https://github.com/searxng/searxng/pull/2081

Closes: https://github.com/searxng/searxng/issues/2796
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2023-10-10 08:40:53 +02:00
Bnyro 48cb58bd2e [feat] duckduckgo: support for videos and news 2023-10-09 06:53:43 +02:00
Markus Heiser 71358e9c67 Revert "[fix] engine - duckduckgo vqd edge-case"
This reverts commit 102502a4f0.
2023-09-22 09:31:25 +02:00
jazzzooo 102502a4f0 [fix] engine - duckduckgo vqd edge-case 2023-09-20 20:05:06 +02:00
jazzzooo 223b3487c3 [fix] spelling 2023-09-18 16:20:27 +02:00
Markus Heiser 696c35d2c3 [fix] engine - duckduckgo_images / determination of vqd value incorrect
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2023-09-05 22:24:51 +02:00
Markus Heiser e8706fb738 [fix] engine & network issues / documentation and type annotations
This patch fixes some quirks and issues related to the engines and the network.
Each engine has its own network and this network was broken for the following
engines[1]:

- archlinux
- bing
- dailymotion
- duckduckgo
- google
- peertube
- startpage
- wikipedia

Since the files have been touched anyway, the type annotaions of the engine
modules has also been completed so that error messages from the type checker are
no longer reported.

Related and (partial) fixed issue:

- [1] https://github.com/searxng/searxng/issues/762#issuecomment-1605323861
- [2] https://github.com/searxng/searxng/issues/2513
- [3] https://github.com/searxng/searxng/issues/2515

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2023-06-25 13:58:26 +02:00
Markus Heiser caebd297e9 [fix] engine ddg: minor change in the API of ddg
Closes: https://github.com/searxng/searxng/issues/2419
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2023-05-12 18:58:49 +02:00
Markus Heiser a762172bf7 [fix] engine ddg: quote !bangs in a request send to ddg
Closes: https://github.com/searxng/searxng/issues/392
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2023-04-03 09:52:16 +02:00
Markus Heiser c80e82a855 [mod] DuckDuckGo: reversed engineered & upgrade to data_type: traits_v1
Partial reverse engineering of the DuckDuckGo (DDG) engines including a
improved language and region handling based on the enigne.traits_v1 data.

- DDG Lite
- DDG Instant Answer API
- DDG Images
- DDG Weather

docs/src/searx.engine.duckduckgo.rst:
  Online documentation of the DDG engines (make docs.live)

searx/data/engine_traits.json
  Add data type "traits_v1" generated by the fetch_traits() functions from:

  - "duckduckgo" (WEB),
  - "duckduckgo images" and
  - "duckduckgo weather"

  and remove data from obsolete data type "supported_languages".

searx/autocomplete.py:
  Reversed engineered Autocomplete from DDG.  Supports DDG's languages.

searx/engines/duckduckgo.py:
  - fetch_traits():  Fetch languages & regions from DDG.

  - get_ddg_lang(): Get DDG's language identifier from SearXNG's locale.  DDG
    defines its languages by region codes.  DDG-Lite does not offer a language
    selection to the user, only a region can be selected by the user.

  - Cache ``vqd`` value: The vqd value depends on the query string and is needed
    for the follow up pages or the images loaded by a XMLHttpRequest (DDG
    images).  The ``vqd`` value of a search term is stored for 10min in the
    redis DB.

  - DDG Lite engine: reversed engineered request method with improved Language
    and region support and better ``vqd`` handling.

searx/engines/duckduckgo_definitions.py: DDG Instant Answer API
  The *instant answers* API does not support languages, or at least we could not
  find out how language support should work.  It seems that most of the features
  are based on English terms.

searx/engines/duckduckgo_images.py: DDG Images
  Reversed engineered request method.  Improved language and region handling
  based on cookies and the enigne.traits_v1 data.  Response: add image format to
  the result list

searx/engines/duckduckgo_weather.py: DDG Weather
  Improved language and region handling based on cookies and the
  enigne.traits_v1 data.

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2023-03-24 10:37:42 +01:00
Markus Heiser dba8977b09 [mod] DuckDuckGo: fetch engine traits (data_type: supported_languages)
Implements a fetch_traits function for the DuckDuckGo engines.

.. note::

   Does not include migration of the request methode from 'supported_languages'
   to 'traits' (EngineTraits) object!

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2023-03-24 10:37:42 +01:00
Markus Heiser 257dc7d6c4 [fix-2146] set different HTTP Referer header to DuckDuckGo requests
For what ever reasons, ddg-lite don't like the Referer

  https://lite.duckduckgo.com/

In an interactive session in the WEB browser the the Reverer has exactly this
value, but ddg-lite don't like this value when the request is build up by
SearXNG.  The new value is:

  https://google.com/

What fakes a user comes from a google link.

Related: https://github.com/searxng/searxng/pull/2081
Closes: https://github.com/searxng/searxng/issues/2146

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2023-02-03 08:45:51 +01:00
Rudis Muiznieks 128b8c7f0a
Add HTTP Referer header to DuckDuckGo requests
closes #2080
2023-01-06 16:07:37 -06:00
Rudis Muiznieks 6804ff048d
Fix: add trailing slash to duckduckgo url
Close #1854
2022-12-22 07:49:58 -06:00
Markus Heiser 8df1f0c47e [mod] add 'Accept-Language' HTTP header to online processores
Most engines that support languages (and regions) use the Accept-Language from
the WEB browser to build a response that fits to the language (and region).

- add new engine option: send_accept_language_header

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2022-08-01 17:01:59 +02:00
Martin Fischer b02f762687 [enh] add more categories 2022-01-05 11:00:11 +01:00
Markus Heiser 3d96a9839a [format.python] initial formatting of the python code
This patch was generated by black [1]::

    make format.python

[1] https://github.com/psf/black

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2021-12-27 09:26:22 +01:00
Markus Heiser a5b7ed9550 [mod] engine duckduckgo - update supported_languages_url
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2021-10-01 20:01:41 +02:00
Markus Heiser 4c9b8b29ee [mod] engine duckduckgo - use DuckDuckGo-Lite
Implement a scrapper for DuckDuckGo-Lite [1].  The existing DuckDuckGo [2]
engine does not support paging.  DuckDuckgo-Lite is much faster, less verbose
and does have a paging option (reversed engineered from the input form of [1]).

[1] https://lite.duckduckgo.com/lite
[2] https://duckduckgo.com/

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2021-10-01 20:01:41 +02:00
Alexandre Flament d14994dc73 [httpx] replace searx.poolrequests by searx.network
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)
2021-04-12 17:25:56 +02:00
Adam Tauber 5f450fda74 [enh] add year filter to duckduckgo 2021-03-25 00:25:36 +01:00
Alexandre Flament c22d4c764c [fix] duckduckgo engine: "!ddg !g" do not redirect to google
* searx understand "!ddg !g time" as : send "!g time" to DDG
* !g a DDG bang for Google: DDG return a HTTP redirect to Google

This commit adds a the allows_redirect param not to follow HTTP redirect.

The DDG engine returns a empty result as before without HTTP redirect.
2021-02-12 11:10:08 +01:00
Alexandre Flament d2dac11392 [mod] duckduckgo engine: better support of the language preference
After the main request, send a second to https://duckduckgo.com/t/sl_h

See https://github.com/searx/searx/issues/2259
2021-02-09 14:36:43 +01:00
Alexandre Flament ca93a01844 [mod] dynamically set language_support variable
The language_support variable is set to True by default,
and set to False in only 5 engines.

Except the documentation and the /config URL, this variable is not used.

This commit remove the variable definition in the engines, and
set value according to supported_languages length: False when the length is 0,
True otherwise.

Close #2485
2021-02-01 17:10:37 +01:00
Alexandre Flament a4dcfa025c [enh] engines: add about variable
move meta information from comment to the about variable
so the preferences, the documentation can show these information
2021-01-14 20:57:17 +01:00
Alexandre Flament b00d108673 [mod] pylint: numerous minor code fixes 2020-12-01 15:21:19 +01:00
Alexandre Flament 3038052c79 [mod] remove unused import
use
from searx.engines.duckduckgo import _fetch_supported_languages, supported_languages_url  # NOQA
so it is possible to easily remove all unused import using autoflake:
autoflake --in-place --recursive --remove-all-unused-imports searx tests
2020-11-14 14:11:02 +01:00
Alexandre Flament cfd21bc475 [fix] fix duckduckgo engine
- remove paging support: a "vqd" parameter is required between each request. This parameter is uniq for each request
- update the URL (no redirect), use the POST method
- language support: works if there is no more than request per minute, otherwise it is ignored !
2020-10-09 16:00:42 +02:00
Alexandre Flament 2006eb4680 [mod] move extract_text, extract_url to searx.utils 2020-10-02 18:13:56 +02:00
Dalf 1022228d95 Drop Python 2 (1/n): remove unicode string and url_utils 2020-09-10 10:39:04 +02:00
Gordon Quad 385e9b5c9e add correction support for duckduckgo 2020-06-13 22:43:10 +01:00
Dalf 85b3723345 [mod] speed optimization
compile XPath only once
avoid redundant call to urlparse
get_locale(webapp.py): avoid useless call to request.accept_languages.best_match
2019-11-15 09:33:15 +01:00
Adam Tauber ed1c1bdb04 [fix] pep8 2019-10-14 15:09:39 +02:00
Adam Tauber 94ea9d6622 [fix] duckduckgo paging - closes #1677 2019-10-14 13:52:15 +02:00
Noémi Ványi b63d645a52 Revert "remove 'all' option from search languages"
This reverts commit 4d1770398a.
2019-01-07 21:19:00 +01:00
Marc Abonce Seguin 772c048d01 refactor engine's search language handling
Add match_language function in utils to match any user given
language code with a list of engine's supported languages.

Also add language_aliases dict on each engine to translate
standard language codes into the custom codes used by the engine.
2018-03-27 00:08:03 -06:00
Marc Abonce Seguin d1eae9359f fix fetch_langauges to be more accurate
Add languages supported by either all default general engines or 10 engines.
2018-03-20 17:58:20 -06:00
Marc Abonce Seguin 216716db70 [fix] change duckduckgo url to avoid error response 2018-03-14 23:18:42 -06:00
marc 4d1770398a remove 'all' option from search languages 2017-12-06 01:20:15 -06:00
marc 44085e31d0 update engines_languages.json and languages.py
Also, fix fetch_languages.py so it can run on python3.
2017-10-10 16:53:28 -05:00
Adam Tauber 077d8efed8 [fix] use poolrequests in ddg engines 2017-07-21 16:23:20 +02:00
marc 405e5c8f24 [fix] duckduckgo images doesn't fail with countryless language 2017-07-10 18:41:50 +02:00
marc 3b950929b1 [fix] fix duckduckgo's offset
First page now starts with 0 offset,
rather than starting on the 30th result.

DuckDuckGo returns 30 results on each page.
2017-05-27 21:12:39 -05:00
marc c65a409f0d add duckduckgo images engine 2017-05-23 20:07:09 +02:00
Adam Tauber 52e615dede [enh] py3 compatibility 2017-05-15 12:02:30 +02:00
Noémi Ványi 742e4dfdcc [fix] fix paging of duckduckgo 2017-02-01 20:54:13 +01:00
marc af35eee10b tests for _fetch_supported_languages in engines
and refactor method to make it testable without making requests
2016-12-15 00:40:21 -06:00
marc e0c270bd72 tests for language support in engines 2016-12-13 23:51:15 -06:00
marc f62ce21f50 [mod] fetch supported languages for several engines
utils/fetch_languages.py gets languages supported by each engine and
generates engines_languages.json with each engine's supported language.
2016-12-13 19:58:10 -06:00
marc a11948c71b Add language support for more engines. 2016-12-13 19:32:43 -06:00