Refine output helper to transmit saved exact responses

Author: mearvk

bin/blackbelt-output.sh

@@ -1,53 +1,47 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-# Save the exact stdout bytes produced by a Black Belt response.
-# Network transport is opt-in through BBEA_TRANSPORT.
-OUTPUT="${1:?response file required}"
+# Transmit an already-saved Black Belt response without modifying its bytes.
+OUTPUT="${1:?saved response file required}"
+[[ -f "$OUTPUT" ]] || { echo "Response file not found: $OUTPUT" >&2; exit 2; }
 
-mkdir -p "$(dirname -- "$OUTPUT")"
-
-if [[ "${BBEA_NO_SAVE:-0}" != "1" ]]; then
-  cat > "$OUTPUT"
-else
-  cat >/dev/null
+if [[ -z "${BBEA_TRANSPORT:-}" ]]; then
+  exit 0
 fi
 
-if [[ -n "${BBEA_TRANSPORT:-}" ]]; then
-  transport="$BBEA_TRANSPORT"
-  case "$transport" in
-    https://*|http://*)
-      if [[ "$transport" == http://* && "${BBEA_ALLOW_INSECURE:-0}" != "1" ]]; then
-        echo "Refusing plaintext HTTP transport; use HTTPS or set BBEA_ALLOW_INSECURE=1." >&2
-        exit 8
-      fi
-      curl --fail-with-body --silent --show-error --data-binary "@$OUTPUT" \
-        -H 'Content-Type: application/octet-stream' "$transport" >/dev/null
-      ;;
-    ssh://*)
-      target="${transport#ssh://}"
-      hostpart="${target%%/*}"
-      remotepath="/${target#*/}"
-      if [[ "$target" == "$hostpart" ]]; then
-        echo "SSH transport requires ssh://user@host/path." >&2
-        exit 9
-      fi
-      scp -- "$OUTPUT" "${hostpart}:${remotepath}"
-      ;;
-    telnet://*|raw://*)
-      if [[ "${BBEA_ALLOW_INSECURE:-0}" != "1" ]]; then
-        echo "Refusing plaintext Telnet/Raw transport; set BBEA_ALLOW_INSECURE=1 explicitly." >&2
-        exit 10
-      fi
-      target="${transport#*://}"
-      host="${target%%:*}"
-      port="${target##*:}"
-      command -v nc >/dev/null 2>&1 || { echo "nc is required for raw/telnet transport." >&2; exit 11; }
-      nc "$host" "$port" < "$OUTPUT"
-      ;;
-    *)
-      echo "Unsupported BBEA_TRANSPORT: $transport" >&2
-      exit 12
-      ;;
-  esac
-fi
+transport="$BBEA_TRANSPORT"
+case "$transport" in
+  https://*|http://*)
+    if [[ "$transport" == http://* && "${BBEA_ALLOW_INSECURE:-0}" != "1" ]]; then
+      echo "Refusing plaintext HTTP transport; use HTTPS or set BBEA_ALLOW_INSECURE=1." >&2
+      exit 8
+    fi
+    curl --fail-with-body --silent --show-error --data-binary "@$OUTPUT" \
+      -H 'Content-Type: application/octet-stream' "$transport" >/dev/null
+    ;;
+  ssh://*)
+    target="${transport#ssh://}"
+    hostpart="${target%%/*}"
+    remotepath="/${target#*/}"
+    if [[ "$target" == "$hostpart" ]]; then
+      echo "SSH transport requires ssh://user@host/path." >&2
+      exit 9
+    fi
+    scp -- "$OUTPUT" "${hostpart}:${remotepath}"
+    ;;
+  telnet://*|raw://*)
+    if [[ "${BBEA_ALLOW_INSECURE:-0}" != "1" ]]; then
+      echo "Refusing plaintext Telnet/Raw transport; set BBEA_ALLOW_INSECURE=1 explicitly." >&2
+      exit 10
+    fi
+    target="${transport#*://}"
+    host="${target%%:*}"
+    port="${target##*:}"
+    command -v nc >/dev/null 2>&1 || { echo "nc is required for raw/telnet transport." >&2; exit 11; }
+    nc "$host" "$port" < "$OUTPUT"
+    ;;
+  *)
+    echo "Unsupported BBEA_TRANSPORT: $transport" >&2
+    exit 12
+    ;;
+esac