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check MAGICK sizes are integer and edit policy instead of replacing

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This commit is contained in:
Emrik Östling
2026-09-14 20:41:17 +02:00
parent 7c980f4652
commit 89c3bd2794
1 changed files with 33 additions and 9 deletions
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entrypoint.sh
+33 -9
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@@ -1,20 +1,44 @@
#!/bin/bash
set -e
if [ -n "$MAGICK_MAX_WIDTH" ]; then
if ! [[ "$MAGICK_MAX_WIDTH" =~ ^[0-9]+$ ]]; then
echo "Error: MAGICK_MAX_WIDTH must be a positive integer in pixels" >&2
exit 1
fi
fi
if [ -n "$MAGICK_MAX_HEIGHT" ]; then
if ! [[ "$MAGICK_MAX_HEIGHT" =~ ^[0-9]+$ ]]; then
echo "Error: MAGICK_MAX_HEIGHT must be a positive integer in pixels" >&2
exit 1
fi
fi
if [ -n "$MAGICK_MAX_WIDTH" ] || [ -n "$MAGICK_MAX_HEIGHT" ]; then
POLICY_DIR="/etc/ImageMagick-7"
POLICY_FILE="$POLICY_DIR/policy.xml"
mkdir -p "$POLICY_DIR"
echo "<policymap>" > "$POLICY_FILE"
if [ -n "$MAGICK_MAX_WIDTH" ]; then
echo " <policy domain=\"resource\" name=\"width\" value=\"$MAGICK_MAX_WIDTH\"/>" >> "$POLICY_FILE"
if [ -f "$POLICY_FILE" ] && grep -q "</policymap>" "$POLICY_FILE"; then
[ -n "$MAGICK_MAX_WIDTH" ] && sed -i '/<policy domain="resource" name="width"/d' "$POLICY_FILE"
[ -n "$MAGICK_MAX_HEIGHT" ] && sed -i '/<policy domain="resource" name="height"/d' "$POLICY_FILE"
if [ -n "$MAGICK_MAX_WIDTH" ]; then
sed -i "s|</policymap>| <policy domain=\"resource\" name=\"width\" value=\"$MAGICK_MAX_WIDTH\"/>\n</policymap>|" "$POLICY_FILE"
fi
if [ -n "$MAGICK_MAX_HEIGHT" ]; then
sed -i "s|</policymap>| <policy domain=\"resource\" name=\"height\" value=\"$MAGICK_MAX_HEIGHT\"/>\n</policymap>|" "$POLICY_FILE"
fi
else
mkdir -p "$POLICY_DIR"
echo "<policymap>" > "$POLICY_FILE"
if [ -n "$MAGICK_MAX_WIDTH" ]; then
echo " <policy domain=\"resource\" name=\"width\" value=\"$MAGICK_MAX_WIDTH\"/>" >> "$POLICY_FILE"
fi
if [ -n "$MAGICK_MAX_HEIGHT" ]; then
echo " <policy domain=\"resource\" name=\"height\" value=\"$MAGICK_MAX_HEIGHT\"/>" >> "$POLICY_FILE"
fi
echo "</policymap>" >> "$POLICY_FILE"
fi
if [ -n "$MAGICK_MAX_HEIGHT" ]; then
echo " <policy domain=\"resource\" name=\"height\" value=\"$MAGICK_MAX_HEIGHT\"/>" >> "$POLICY_FILE"
fi
echo "</policymap>" >> "$POLICY_FILE"
fi
exec bun run dist/src/index.js