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Run PHP replay without interpreter file capabilities #1107

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Merged
rmcdaniel merged 1 commit into from
Nov 8, 2026
Merged

Run PHP replay without interpreter file capabilities #1107

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15 changes: 13 additions & 2 deletions scripts/conformance/php-sdk-replay-host-published-artifacts.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -143,7 +143,7 @@ docker start "$server" >/dev/null
creating="$probe"
docker create --name "$probe" --label "$label" --network "$network" \
--user "$(id -u):$(id -g)" --cpus=2 --memory=2g --pids-limit=512 \
--cap-drop=ALL --security-opt=no-new-privileges --read-only --tmpfs /tmp:rw,mode=1777 \
--cap-drop=ALL --security-opt=no-new-privileges --read-only --tmpfs /tmp:rw,exec,mode=1777 \
--mount "type=bind,src=$script_dir,dst=/runner,readonly" \
--mount "type=bind,src=$result_dir,dst=/result" \
-e HOME=/tmp/php-replay-home \
Expand All @@ -154,7 +154,18 @@ docker create --name "$probe" --label "$label" --network "$network" \
-e DW_PHP_SDK_CONFORMANCE_WORKER_TOKEN=php-replay-worker \
-e DW_PHP_SDK_CONFORMANCE_REPLAY_MATRIX=1 \
--entrypoint bash "$runner_image" -euc '
mkdir -p "$HOME"
mkdir -p -m 0700 "$HOME/bin"
# The image PHP has a low-port file capability, which cannot execute with
# our empty bounding set. Use the same bytes without extended attributes.
original_php="$(readlink -f "$(command -v php)")"
cp --no-preserve=all "$original_php" "$HOME/bin/php"
chmod 0755 "$HOME/bin/php"
cmp "$original_php" "$HOME/bin/php"
test -z "$(getcap "$HOME/bin/php")"
getcap "$original_php" > /result/php-replay-interpreter.txt
sha256sum "$original_php" "$HOME/bin/php" >> /result/php-replay-interpreter.txt
awk "/^(CapBnd|CapEff|NoNewPrivs):/" /proc/self/status >> /result/php-replay-interpreter.txt
export PATH="$HOME/bin:$PATH"
for command in php composer node python3 curl; do command -v "$command"; done > /result/php-replay-tools.txt
php --version >> /result/php-replay-tools.txt
composer --version >> /result/php-replay-tools.txt
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