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import sys, os

from Ft.Xml.Xslt import Transform



"""

log2html.py is a script that takes a SQL prevent log as input, and produces an html representation as output.

"""



USAGE = """

usage:

	log2html.py <sqlprevent_application.log>

"""



__author__ = 'Levi Stoddard'

__date__ =   'May 20th, 2009'



# get log file to parse

if len(sys.argv) != 2:

	print(USAGE)

	exit(1)

input_file = sys.argv[1]



# read xml to transform

xml_file = open(input_file, 'r')

xml_str = "<log>%s</log>" % xml_file.read()

xml_file.close()



# xslt that will be applied to the log file

xslt_str = """

<xsl:stylesheet version="1.0" 

	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

	xmlns:date="http://exslt.org/dates-and-times"

	extension-element-prefixes="date">

	

	<xsl:output method="html"

							indent="yes"

							doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN"

							doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"/>



	<xsl:template match="/">

		<html>

  		<head>

				<style type="text/css">

					/*

					* query styles 

					*/

					tr.query { background: blue; }	

					tr.specifics { background: yellow; }	

					tr.even { background: #99DDFF; }

					tr.odd { background: #99BBFF; }

					.tainted { color: red; }



					/*

					* error styles

					*/

					tr.error { background: red; }



				</style>

  		</head>

  		<body>

				<h1><xsl:value-of select="concat('SQL Prevent Log (', date:date-time(), ')')" /></h1>

				<xsl:apply-templates />

  		</body>

  	</html>  	

	</xsl:template>

	

	<xsl:template match="log">

		<xsl:apply-templates />

	</xsl:template>



	<xsl:template match="error|query">

		<xsl:variable name="name" select="name()"/>

		<p>

			<table border="1">

				<xsl:call-template name="header">

					<xsl:with-param name="title"><xsl:value-of select="$name" /></xsl:with-param>

					<xsl:with-param name="class"><xsl:value-of select="$name" /></xsl:with-param>

				</xsl:call-template>

				<xsl:apply-templates />

			</table>

		</p>

	</xsl:template>



	<xsl:template match="performance">

		<xsl:apply-templates />	

	</xsl:template>	

	

	<xsl:template match="statement">

		<xsl:apply-templates />	

	</xsl:template>	



	<xsl:template match="time-start|time-stop|time-delta|benign|time|msg|trace">

		<tr>

			<td><xsl:value-of select="concat(name(), ': ')" /></td>

			<td><xsl:value-of select="." /></td>

		</tr>	

	</xsl:template>



	<xsl:template match="sql">

		<tr>

			<td>sql:</td>

			<td>

				<xsl:apply-templates />	

			</td>

		</tr>

	</xsl:template>



	<xsl:template match="tainted|clean">

		<span>

			<xsl:attribute name="class">

				<xsl:value-of select="name()" />	

			</xsl:attribute>

			<xsl:value-of select="." />

		</span>

	</xsl:template>



	<xsl:template match="specifics">

		<xsl:if test="count(./*) > 0">

			<xsl:call-template name="header">

				<xsl:with-param name="title">specifics</xsl:with-param>

				<xsl:with-param name="class">specifics</xsl:with-param>

			</xsl:call-template>

			

			<xsl:for-each select="./*">

				<tr>

				<!-- give rows alternating colors-->	

				<xsl:attribute name="class">

					<xsl:choose>

						<xsl:when test="position() mod 2 = 1">odd</xsl:when>

						<xsl:otherwise>even</xsl:otherwise>	

					</xsl:choose>	

				</xsl:attribute>

				

					<!-- node name -->	

					<td>

						<xsl:value-of select="name()" />

					</td>	

					

					<!-- node value/attributes -->

					<td>

						<xsl:value-of select="." />

						<xsl:for-each select="./@*">

							<xsl:value-of select="concat(' (', name(), ': ', ., ')')"/>	

						</xsl:for-each>

					</td>

				</tr>	

			</xsl:for-each>	

			

		</xsl:if>	

	</xsl:template>



	<xsl:template name="header">

		<xsl:param name="title" />	

		<xsl:param name="class" />

		<tr>

			<xsl:attribute name="class"><xsl:value-of select="$class"/></xsl:attribute>	

			<th><xsl:value-of select="$title" /></th>

			<th></th>

		</tr>

	</xsl:template>

</xsl:stylesheet>

"""



# transform against xslt, and write to output file

result = Transform(xml_str, xslt_str)

base_name = os.path.splitext(input_file)[0]

html_file = open("%s.html" % base_name, 'w+')

html_file.write(result)

html_file.close()



print("html output written to %s" % html_file.name)