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78 lines
3.5 KiB
78 lines
3.5 KiB
<?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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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="system" name="shred" value="2"/> --> |
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<!-- <policy domain="system" name="precision" value="6"/> --> |
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<!-- <policy domain="system" name="memory-map" value="anonymous"/> --> |
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<!-- <policy domain="system" name="max-memory-request" value="256MiB"/> --> |
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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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</policymap>
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