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83 lines
3.7 KiB
83 lines
3.7 KiB
4 months ago
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE policymap [
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<!ELEMENT policymap (policy)*>
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<!ATTLIST policymap xmlns CDATA #FIXED ''>
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<!ELEMENT policy EMPTY>
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<!ATTLIST policy xmlns CDATA #FIXED '' domain NMTOKEN #REQUIRED
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name NMTOKEN #IMPLIED pattern CDATA #IMPLIED rights NMTOKEN #IMPLIED
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stealth NMTOKEN #IMPLIED value CDATA #IMPLIED>
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]>
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<!--
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Configure ImageMagick policies.
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Domains include system, delegate, coder, filter, path, or resource.
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Rights include none, read, write, execute and all. Use | to combine them,
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for example: "read | write" to permit read from, or write to, a path.
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Use a glob expression as a pattern.
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Suppose we do not want users to process MPEG video images:
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<policy domain="delegate" rights="none" pattern="mpeg:decode" />
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Here we do not want users reading images from HTTP:
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<policy domain="coder" rights="none" pattern="HTTP" />
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The /repository file system is restricted to read only. We use a glob
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expression to match all paths that start with /repository:
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<policy domain="path" rights="read" pattern="/repository/*" />
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Lets prevent users from executing any image filters:
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<policy domain="filter" rights="none" pattern="*" />
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Any large image is cached to disk rather than memory:
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<policy domain="resource" name="area" value="1GP"/>
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Use the default system font unless overwridden by the application:
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<policy domain="system" name="font" value="/usr/share/fonts/favorite.ttf"/>
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Define arguments for the memory, map, area, width, height and disk resources
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with SI prefixes (.e.g 100MB). In addition, resource policies are maximums
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for each instance of ImageMagick (e.g. policy memory limit 1GB, -limit 2GB
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exceeds policy maximum so memory limit is 1GB).
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Rules are processed in order. Here we want to restrict ImageMagick to only
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read or write a small subset of proven web-safe image types:
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<policy domain="delegate" rights="none" pattern="*" />
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<policy domain="filter" rights="none" pattern="*" />
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<policy domain="coder" rights="none" pattern="*" />
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<policy domain="coder" rights="read|write" pattern="{GIF,JPEG,PNG,WEBP}" />
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-->
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<policymap>
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<!-- <policy domain="resource" name="temporary-path" value="/tmp"/> -->
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<!-- <policy domain="resource" name="memory" value="2GiB"/> -->
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<!-- <policy domain="resource" name="map" value="4GiB"/> -->
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<!-- <policy domain="resource" name="width" value="10KP"/> -->
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<!-- <policy domain="resource" name="height" value="10KP"/> -->
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<!-- <policy domain="resource" name="list-length" value="128"/> -->
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<!-- <policy domain="resource" name="area" value="100MP"/> -->
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<!-- <policy domain="resource" name="disk" value="16EiB"/> -->
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<!-- <policy domain="resource" name="file" value="768"/> -->
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<!-- <policy domain="resource" name="thread" value="4"/> -->
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<!-- <policy domain="resource" name="throttle" value="0"/> -->
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<!-- <policy domain="resource" name="time" value="3600"/> -->
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<!-- <policy domain="coder" rights="none" pattern="MVG" /> -->
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<!-- <policy domain="module" rights="none" pattern="{PS,PDF,XPS}" /> -->
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<!-- <policy domain="delegate" rights="none" pattern="HTTPS" /> -->
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<!-- <policy domain="path" rights="none" pattern="@*" /> -->
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<!-- <policy domain="cache" name="memory-map" value="anonymous"/> -->
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<!-- <policy domain="cache" name="synchronize" value="True"/> -->
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<!-- <policy domain="cache" name="shared-secret" value="passphrase" stealth="true"/> -->
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<!-- <policy domain="system" name="max-memory-request" value="256MiB"/> -->
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<!-- <policy domain="system" name="shred" value="2"/> -->
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<!-- <policy domain="system" name="precision" value="6"/> -->
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<!-- <policy domain="system" name="font" value="/path/to/unicode-font.ttf"/> -->
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</policymap>
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