forked from zaclys/searxng
159 lines
5.5 KiB
Python
159 lines
5.5 KiB
Python
#!/usr/bin/env python
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'''
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searx is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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searx is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with searx. If not, see < http://www.gnu.org/licenses/ >.
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(C) 2014 by Thomas Pointhuber, <thomas.pointhuber@gmx.at>
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'''
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from searx.languages import language_codes
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from searx.engines import (
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categories, engines, engine_shortcuts
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)
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import string
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import re
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VALID_LANGUAGE_CODE = re.compile(r'^[a-z]{2,3}(\-[A-Z]{2})?$')
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class RawTextQuery(object):
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"""parse raw text query (the value from the html input)"""
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def __init__(self, query, disabled_engines):
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self.query = query
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self.disabled_engines = []
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if disabled_engines:
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self.disabled_engines = disabled_engines
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self.query_parts = []
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self.engines = []
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self.languages = []
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self.specific = False
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# parse query, if tags are set, which
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# change the serch engine or search-language
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def parse_query(self):
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self.query_parts = []
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# split query, including whitespaces
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raw_query_parts = re.split(r'(\s+)', self.query)
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parse_next = True
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for query_part in raw_query_parts:
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if not parse_next:
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self.query_parts[-1] += query_part
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continue
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parse_next = False
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# part does only contain spaces, skip
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if query_part.isspace()\
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or query_part == '':
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parse_next = True
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self.query_parts.append(query_part)
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continue
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# this force a language
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if query_part[0] == ':':
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lang = query_part[1:].lower()
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# user may set a valid, yet not selectable language
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if VALID_LANGUAGE_CODE.match(lang):
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self.languages.append(lang)
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parse_next = True
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# check if any language-code is equal with
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# declared language-codes
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for lc in language_codes:
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lang_id, lang_name, country, english_name = map(unicode.lower, lc)
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# if correct language-code is found
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# set it as new search-language
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if lang == lang_id\
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or lang_id.startswith(lang)\
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or lang == lang_name\
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or lang == english_name\
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or lang.replace('_', ' ') == country:
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parse_next = True
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self.languages.append(lang_id)
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# to ensure best match (first match is not necessarily the best one)
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if lang == lang_id:
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break
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# this force a engine or category
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if query_part[0] == '!' or query_part[0] == '?':
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prefix = query_part[1:].replace('-', ' ')
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# check if prefix is equal with engine shortcut
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if prefix in engine_shortcuts:
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parse_next = True
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self.engines.append({'category': 'none',
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'name': engine_shortcuts[prefix]})
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# check if prefix is equal with engine name
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elif prefix in engines:
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parse_next = True
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self.engines.append({'category': 'none',
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'name': prefix})
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# check if prefix is equal with categorie name
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elif prefix in categories:
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# using all engines for that search, which
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# are declared under that categorie name
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parse_next = True
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self.engines.extend({'category': prefix,
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'name': engine.name}
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for engine in categories[prefix]
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if (engine.name, prefix) not in self.disabled_engines)
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if query_part[0] == '!':
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self.specific = True
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# append query part to query_part list
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self.query_parts.append(query_part)
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def changeSearchQuery(self, search_query):
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if len(self.query_parts):
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self.query_parts[-1] = search_query
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else:
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self.query_parts.append(search_query)
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def getSearchQuery(self):
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if len(self.query_parts):
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return self.query_parts[-1]
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else:
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return ''
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def getFullQuery(self):
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# get full querry including whitespaces
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return string.join(self.query_parts, '')
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class SearchQuery(object):
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"""container for all the search parameters (query, language, etc...)"""
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def __init__(self, query, engines, categories, lang, safesearch, pageno, time_range):
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self.query = query
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self.engines = engines
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self.categories = categories
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self.lang = lang
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self.safesearch = safesearch
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self.pageno = pageno
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self.time_range = time_range
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def __str__(self):
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return str(self.query) + ";" + str(self.engines)
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