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module Msf
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  #
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  # This mixin provides helpers to perform SQL injection
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  # - provides a level of abstraction for common queries, for example, querying the table names
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  # - implements blind and time-based SQL injection in a reusable manner
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  # - Highly extendable (user can run any code to perform the requests, encode payloads and parse results)
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  #
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  module Exploit::SQLi
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    def initialize(info = {})
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      super
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      register_advanced_options(
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        [
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          OptFloat.new('SqliDelay', [ false, 'The delay to sleep on time-based blind SQL injections', 1.0 ])
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        ]
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      )
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    end
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    #
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    # Creates an SQL injection object, this is the method module writers should use
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    # @param dbms [Class] The SQL injection class you intend to use
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    # @param opts [Hash] The options to use with this SQL injection
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    # @param query_proc [Proc] The proc that takes an SQL payload as a parameter, and queries the server
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    # @return [Object] an instance of dbms
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    #
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    def create_sqli(dbms:, opts: {}, &query_proc)
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      raise ArgumentError, 'Invalid dbms class' unless dbms.is_a?(Class) && dbms.ancestors.include?(Msf::Exploit::SQLi::Common)
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      dbms.new(datastore, framework, user_output, opts, &query_proc)
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    end
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  end
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end
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