forked from zaclys/searxng
[mod] Startpage: fetch engine traits (data_type: supported_languages)
Implements a fetch_traits function for the Startpage engine. .. 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>
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Markus Heiser
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18
docs/src/searx.engines.startpage.rst
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18
docs/src/searx.engines.startpage.rst
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@ -0,0 +1,18 @@
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.. _startpage engines:
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=================
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Startpage engines
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=================
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.. contents:: Contents
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:depth: 2
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:local:
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:backlinks: entry
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.. automodule:: searx.engines.startpage
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Functions
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=========
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.. autofunction:: searx.engines.startpage.fetch_traits
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.. autofunction:: searx.engines.startpage.get_sc_code
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@ -3236,8 +3236,140 @@
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"all_locale": null,
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"custom": {},
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"data_type": "supported_languages",
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"languages": {},
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"regions": {},
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"languages": {
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"af": "afrikaans",
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"am": "amharic",
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"ar": "arabic",
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"az": "azerbaijani",
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"be": "belarusian",
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"bg": "bulgarian",
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"bn": "bengali",
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"bs": "bosnian",
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"ca": "catalan",
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"cs": "czech",
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"cy": "welsh",
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"da": "dansk",
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"de": "deutsch",
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"el": "greek",
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"en": "english",
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"eo": "esperanto",
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"es": "espanol",
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"et": "estonian",
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"eu": "basque",
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"fa": "persian",
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"fi": "suomi",
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"fo": "faroese",
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"fr": "francais",
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"fy": "frisian",
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"ga": "irish",
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"gd": "gaelic",
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"gl": "galician",
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"gu": "gujarati",
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"he": "hebrew",
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"hi": "hindi",
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"hr": "croatian",
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"hu": "hungarian",
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"ia": "interlingua",
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"id": "indonesian",
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"is": "icelandic",
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"it": "italiano",
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"ja": "nihongo",
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"jv": "javanese",
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"ka": "georgian",
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"kn": "kannada",
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"ko": "hangul",
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"la": "latin",
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"lt": "lithuanian",
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"lv": "latvian",
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"mai": "bihari",
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"mk": "macedonian",
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"ml": "malayalam",
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"mr": "marathi",
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"ms": "malay",
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"mt": "maltese",
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"nb": "norsk",
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"ne": "nepali",
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"nl": "nederlands",
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"oc": "occitan",
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"pa": "punjabi",
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"pl": "polski",
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"pt": "portugues",
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"ro": "romanian",
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"ru": "russian",
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"si": "sinhalese",
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"sk": "slovak",
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"sl": "slovenian",
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"sq": "albanian",
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"sr": "serbian",
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"su": "sudanese",
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"sv": "svenska",
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"sw": "swahili",
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"ta": "tamil",
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"te": "telugu",
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"th": "thai",
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"ti": "tigrinya",
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"tl": "tagalog",
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"tr": "turkce",
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"uk": "ukrainian",
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"ur": "urdu",
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"uz": "uzbek",
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"vi": "vietnamese",
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"xh": "xhosa",
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"zh": "jiantizhongwen",
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"zh_Hant": "fantizhengwen",
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"zu": "zulu"
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},
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"regions": {
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"ar-EG": "ar_EG",
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"bg-BG": "bg_BG",
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"ca-ES": "ca_ES",
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"cs-CZ": "cs_CZ",
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"da-DK": "da_DK",
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"de-AT": "de_AT",
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"de-CH": "de_CH",
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"de-DE": "de_DE",
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"el-GR": "el_GR",
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"en-AU": "en_AU",
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"en-CA": "en_CA",
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"en-GB": "en-GB_GB",
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"en-IE": "en_IE",
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"en-MY": "en_MY",
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"en-NZ": "en_NZ",
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"en-US": "en_US",
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"en-ZA": "en_ZA",
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"es-AR": "es_AR",
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"es-CL": "es_CL",
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"es-ES": "es_ES",
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"es-US": "es_US",
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"es-UY": "es_UY",
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"fi-FI": "fi_FI",
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"fil-PH": "fil_PH",
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"fr-BE": "fr_BE",
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"fr-CA": "fr_CA",
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"fr-CH": "fr_CH",
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"fr-FR": "fr_FR",
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"hi-IN": "hi_IN",
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"it-CH": "it_CH",
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"it-IT": "it_IT",
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"ja-JP": "ja_JP",
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"ko-KR": "ko_KR",
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"ms-MY": "ms_MY",
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"nb-NO": "no_NO",
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"nl-BE": "nl_BE",
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"nl-NL": "nl_NL",
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"pl-PL": "pl_PL",
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"pt-BR": "pt-BR_BR",
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"pt-PT": "pt_PT",
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"ro-RO": "ro_RO",
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"ru-BY": "ru_BY",
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"ru-RU": "ru_RU",
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"sv-SE": "sv_SE",
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"tr-TR": "tr_TR",
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"uk-UA": "uk_UA",
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"zh-CN": "zh-CN_CN",
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"zh-HK": "zh-TW_HK",
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"zh-TW": "zh-TW_TW"
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},
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"supported_languages": {
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"af": {
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"alias": "afrikaans"
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@ -1,6 +1,63 @@
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# lint: pylint
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"""Startpage (Web)
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"""Startpage's language & region selectors are a mess ..
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.. _startpage regions:
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Startpage regions
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=================
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In the list of regions there are tags we need to map to common region tags::
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pt-BR_BR --> pt_BR
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zh-CN_CN --> zh_Hans_CN
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zh-TW_TW --> zh_Hant_TW
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zh-TW_HK --> zh_Hant_HK
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en-GB_GB --> en_GB
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and there is at least one tag with a three letter language tag (ISO 639-2)::
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fil_PH --> fil_PH
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The locale code ``no_NO`` from Startpage does not exists and is mapped to
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``nb-NO``::
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babel.core.UnknownLocaleError: unknown locale 'no_NO'
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For reference see languages-subtag at iana; ``no`` is the macrolanguage [1]_ and
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W3C recommends subtag over macrolanguage [2]_.
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.. [1] `iana: language-subtag-registry
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<https://www.iana.org/assignments/language-subtag-registry/language-subtag-registry>`_ ::
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type: language
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Subtag: nb
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Description: Norwegian Bokmål
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Added: 2005-10-16
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Suppress-Script: Latn
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Macrolanguage: no
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.. [2]
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Use macrolanguages with care. Some language subtags have a Scope field set to
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macrolanguage, i.e. this primary language subtag encompasses a number of more
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specific primary language subtags in the registry. ... As we recommended for
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the collection subtags mentioned above, in most cases you should try to use
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the more specific subtags ... `W3: The primary language subtag
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<https://www.w3.org/International/questions/qa-choosing-language-tags#langsubtag>`_
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.. _startpage languages:
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Startpage languages
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===================
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The displayed name in Startpage's settings page depend on the location of the IP
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when the 'Accept-Language' HTTP header is unset (in the language update script
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we use "en-US,en;q=0.5" to get uniform names independent from the IP).
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Each option has a displayed name and a value, either of which may represent the
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language name in the native script, the language name in English, an English
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transliteration of the native name, the English name of the writing script used
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by the language, or occasionally something else entirely.
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"""
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@ -16,13 +73,16 @@ from lxml import html
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from babel import Locale
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from babel.localedata import locale_identifiers
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from searx.network import get
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from searx import network
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from searx.utils import extract_text, eval_xpath, match_language
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from searx.exceptions import (
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SearxEngineResponseException,
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SearxEngineCaptchaException,
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)
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from searx.enginelib.traits import EngineTraits
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traits: EngineTraits
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# about
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about = {
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@ -66,11 +126,11 @@ def raise_captcha(resp):
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def get_sc_code(headers):
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"""Get an actual `sc` argument from startpage's home page.
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"""Get an actual ``sc`` argument from Startpage's home page.
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Startpage puts a `sc` argument on every link. Without this argument
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startpage considers the request is from a bot. We do not know what is
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encoded in the value of the `sc` argument, but it seems to be a kind of a
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Startpage puts a ``sc`` argument on every link. Without this argument
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Startpage considers the request is from a bot. We do not know what is
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encoded in the value of the ``sc`` argument, but it seems to be a kind of a
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*time-stamp*. This *time-stamp* is valid for a few hours.
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This function scrap a new *time-stamp* from startpage's home page every hour
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@ -83,7 +143,7 @@ def get_sc_code(headers):
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if time() > (sc_code_ts + 3000):
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logger.debug("query new sc time-stamp ...")
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resp = get(base_url, headers=headers)
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resp = network.get(base_url, headers=headers)
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raise_captcha(resp)
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dom = html.fromstring(resp.text)
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@ -258,3 +318,112 @@ def _fetch_supported_languages(resp):
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print('Unknown language option in Startpage: {} ({})'.format(sp_option_value, sp_option_text))
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return supported_languages
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def fetch_traits(engine_traits: EngineTraits):
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"""Fetch :ref:`languages <startpage languages>` and :ref:`regions <startpage
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regions>` from Startpage."""
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# pylint: disable=import-outside-toplevel, too-many-locals, too-many-branches
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# pylint: disable=too-many-statements
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engine_traits.data_type = 'supported_languages' # deprecated
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import babel
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from searx.utils import gen_useragent
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from searx.locales import region_tag
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headers = {
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'User-Agent': gen_useragent(),
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'Accept-Language': "en-US,en;q=0.5", # bing needs to set the English language
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}
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resp = network.get('https://www.startpage.com/do/settings', headers=headers)
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if not resp.ok:
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print("ERROR: response from Startpage is not OK.")
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dom = html.fromstring(resp.text)
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# regions
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sp_region_names = []
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for option in dom.xpath('//form[@name="settings"]//select[@name="search_results_region"]/option'):
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sp_region_names.append(option.get('value'))
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for eng_tag in sp_region_names:
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if eng_tag == 'all':
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continue
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babel_region_tag = {'no_NO': 'nb_NO'}.get(eng_tag, eng_tag) # norway
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if '-' in babel_region_tag:
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l, r = babel_region_tag.split('-')
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r = r.split('_')[-1]
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sxng_tag = region_tag(babel.Locale.parse(l + '_' + r, sep='_'))
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else:
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try:
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sxng_tag = region_tag(babel.Locale.parse(babel_region_tag, sep='_'))
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except babel.UnknownLocaleError:
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print("ERROR: can't determine babel locale of startpage's locale %s" % eng_tag)
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continue
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conflict = engine_traits.regions.get(sxng_tag)
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if conflict:
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if conflict != eng_tag:
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print("CONFLICT: babel %s --> %s, %s" % (sxng_tag, conflict, eng_tag))
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continue
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engine_traits.regions[sxng_tag] = eng_tag
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# languages
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catalog_engine2code = {name.lower(): lang_code for lang_code, name in babel.Locale('en').languages.items()}
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# get the native name of every language known by babel
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for lang_code in filter(lambda lang_code: lang_code.find('_') == -1, babel.localedata.locale_identifiers()):
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native_name = babel.Locale(lang_code).get_language_name().lower()
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# add native name exactly as it is
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catalog_engine2code[native_name] = lang_code
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# add "normalized" language name (i.e. français becomes francais and español becomes espanol)
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unaccented_name = ''.join(filter(lambda c: not combining(c), normalize('NFKD', native_name)))
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if len(unaccented_name) == len(unaccented_name.encode()):
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# add only if result is ascii (otherwise "normalization" didn't work)
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catalog_engine2code[unaccented_name] = lang_code
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# values that can't be determined by babel's languages names
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catalog_engine2code.update(
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{
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# traditional chinese used in ..
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'fantizhengwen': 'zh_Hant',
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# Korean alphabet
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'hangul': 'ko',
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# Malayalam is one of 22 scheduled languages of India.
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'malayam': 'ml',
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'norsk': 'nb',
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'sinhalese': 'si',
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}
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)
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skip_eng_tags = {
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'english_uk', # SearXNG lang 'en' already maps to 'english'
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}
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for option in dom.xpath('//form[@name="settings"]//select[@name="language"]/option'):
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eng_tag = option.get('value')
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if eng_tag in skip_eng_tags:
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continue
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name = extract_text(option).lower()
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sxng_tag = catalog_engine2code.get(eng_tag)
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if sxng_tag is None:
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sxng_tag = catalog_engine2code[name]
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conflict = engine_traits.languages.get(sxng_tag)
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if conflict:
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if conflict != eng_tag:
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print("CONFLICT: babel %s --> %s, %s" % (sxng_tag, conflict, eng_tag))
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continue
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engine_traits.languages[sxng_tag] = eng_tag
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