74 lines
2.5 KiB
Bash
74 lines
2.5 KiB
Bash
#!/usr/bin/env bash
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# ─────────────────────────────────────────────────────────────
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# himalaya-ro — Read-only wrapper for himalaya
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#
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# Blocks destructive commands and logs audit trail.
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# Pass-through for read-only commands (list, read, search).
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#
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# Usage: himalaya-ro [options] <command> [args...]
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#
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# Install: place in PATH before the real himalaya, or use
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# `ln -sf himalaya-ro /usr/local/bin/himalaya`
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# ─────────────────────────────────────────────────────────────
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set -o pipefail
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# ── Configuration ───────────────────────────────────────────
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HIMALAYA_BIN="${HIMALAYA_BIN:-/usr/local/bin/himalaya}"
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AUDIT_LOG="${HIMALAYA_AUDIT_LOG:-/var/log/himalaya-audit.log}"
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# ── Destructive commands we block ──────────────────────────
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BLOCKED_CMDS=(
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"message move"
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"message delete"
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"message copy"
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"flag add"
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"flag remove"
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"folder create"
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"folder delete"
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"folder rename"
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"template send"
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"account configure"
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"account delete"
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)
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# ── Determine the subcommand being invoked ─────────────────
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# Strip leading options (--account, --output, etc.) to find the verb
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ARGS=()
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SKIP_NEXT=false
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for arg in "$@"; do
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if $SKIP_NEXT; then
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SKIP_NEXT=false
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continue
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fi
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if [[ "$arg" == --* ]]; then
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case "$arg" in
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--account|--output|--page|--page-size|--folder|--color|--format)
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SKIP_NEXT=true ;;
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esac
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continue
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fi
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ARGS+=("$arg")
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done
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# Build subcommand string and check against blocklist
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CMD_STR=""
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for ((i=0; i<${#ARGS[@]}; i++)); do
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if [ -z "$CMD_STR" ]; then
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CMD_STR="${ARGS[$i]}"
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else
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CMD_STR="$CMD_STR ${ARGS[$i]}"
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fi
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for blocked in "${BLOCKED_CMDS[@]}"; do
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if [[ "$CMD_STR" == "$blocked" ]]; then
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TS=$(date '+%Y-%m-%d %H:%M:%S')
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echo "[AUDIT] $TS BLOCKED: himalaya $*" >> "$AUDIT_LOG"
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echo "ERROR: Command 'himalaya $CMD_STR ...' is blocked by read-only policy." >&2
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echo " Audit log: $AUDIT_LOG" >&2
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exit 100
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fi
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done
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done
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# ── Allow pass-through ─────────────────────────────────────
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exec "$HIMALAYA_BIN" "$@"
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