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'''
searx is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
searx is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with searx. If not, see < http://www.gnu.org/licenses/ >.
(C) 2017- by Alexandre Flament, <alex@al-f.net>
'''
class SearxException(Exception):
pass
class SearxParameterException(SearxException):
def __init__(self, name, value):
if value == '' or value is None:
message = 'Empty ' + name + ' parameter'
else:
message = 'Invalid value "' + value + '" for parameter ' + name
super().__init__(message)
self.message = message
self.parameter_name = name
self.parameter_value = value
class SearxSettingsException(SearxException):
"""Error while loading the settings"""
def __init__(self, message, filename):
super().__init__(message)
self.message = message
self.filename = filename
class SearxEngineException(SearxException):
"""Error inside an engine"""
class SearxXPathSyntaxException(SearxEngineException):
"""Syntax error in a XPATH"""
def __init__(self, xpath_spec, message):
super().__init__(str(xpath_spec) + " " + message)
self.message = message
# str(xpath_spec) to deal with str and XPath instance
self.xpath_str = str(xpath_spec)
class SearxEngineResponseException(SearxEngineException):
"""Impossible to parse the result of an engine"""
class SearxEngineAPIException(SearxEngineResponseException):
"""The website has returned an application error"""
class SearxEngineCaptchaException(SearxEngineResponseException):
"""The website has returned a CAPTCHA"""
class SearxEngineXPathException(SearxEngineResponseException):
"""Error while getting the result of an XPath expression"""
def __init__(self, xpath_spec, message):
super().__init__(str(xpath_spec) + " " + message)
self.message = message
# str(xpath_spec) to deal with str and XPath instance
self.xpath_str = str(xpath_spec)
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