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#!/usr/bin/ruby1.8
require 'socket'
require 'timeout'
#
# Test that we can receive a ping response from the remote host.
#
class PINGTest
#
# Data passed from the JSON hash.
#
attr_reader :test_data
#
# The error text we return on failure.
#
attr_reader :error
#
# Save the data away.
#
def initialize( data )
@test_data = data
end
#
# Run the test.
#
# Return "true" on success
#
# Return "false" on failure.
#
# If the test fails the details should be retrieved from "error()".
#
def run_test
#
# Reset state from previous test.
#
@error = nil
#
# Find the binary we're going to invoke.
#
binary = nil
binary = "/usr/bin/multi-ping" if ( File.exists?( "/usr/bin/multi-ping" ) )
if ( binary.nil? )
@error = "Failed to find 'multi-ping'"
return false
end
#
# Get the hostname to test against.
#
host = @test_data['target_host']
#
# Sanity check the hostname for ping-tests, to
# avoid this security hole:
#
# $(/tmp/exploit.sh) must run ping ..
#
raise ArgumentError, "Invalid hostname for ping-test: #{host}" unless( host =~ /^([a-zA-Z0-9:\-\.]+)$/ )
#
# Show the hostname.
#
puts "ping testing host #{host}" if ( @test_data['verbose'] )
if ( system( "#{binary} #{host}" ) == true )
puts "PING OK" if ( @test_data['verbose'] )
return true
else
@error = "Ping failed. TODO: Mtr"
return false
end
end
#
# Return the error text for why this test failed.
#
def error()
return @error
end
end
#
# Sample test, for testing.
#
if __FILE__ == $0 then
#
# Sample data.
#
test = {
"target_host" => "upload.ns.bytemark.co.uk",
"test_type" => "ping",
"verbose" => 1,
"timeout" => 5,
"test_alert" => "Pingly faily",
}
#
# Run the test.
#
obj = PINGTest.new( test )
if ( obj.run_test )
puts "TEST OK"
else
puts "TEST FAILED"
puts obj.error()
end
end
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