107 lines
4.3 KiB
Bash
107 lines
4.3 KiB
Bash
#!/usr/bin/env bash
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# add_user.sh — добавить пользователя в caddy/users.caddy.snippet
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# Usage: ./scripts/auth/add_user.sh <username> "<comment>"
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#
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# - Читает пароль из stdin (pipe) или генерирует 16-char random если интерактивен.
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# - Bcrypt через `docker run --rm caddy:2 caddy hash-password`.
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# - Печатает plain password на stdout ОДИН РАЗ.
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# - НЕ коммитит изменения — это задача разработчика.
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set -euo pipefail
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# Скрипт лежит в `<repo>/scripts/auth/`; snippet — в `<repo>/caddy/`.
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# Нужно 3× `dirname`: $0 (.../scripts/auth/add_user.sh) → .../scripts/auth → .../scripts → .../<repo>.
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# Bug fix 2026-05-26 — было 2× dirname (см. [[Bug_AddUser_Sh_Snippet_Path_Fixed]]).
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SCRIPT_DIR="$(cd "$(dirname "$(realpath "$0")")" && pwd)"
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REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
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SNIPPET="$REPO_ROOT/caddy/users.caddy.snippet"
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usage() {
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echo "Usage: $0 <username> \"<comment>\"" >&2
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exit 1
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}
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# ─── args ────────────────────────────────────────────────────────────────────
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[[ $# -lt 2 ]] && usage
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USERNAME="$1"
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COMMENT="$2"
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DATE="$(date -u +%Y-%m-%d)"
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# Validate username: ^[a-z][a-z0-9-]{2,30}$
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if ! [[ "$USERNAME" =~ ^[a-z][a-z0-9-]{2,30}$ ]]; then
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echo "ERROR: invalid username '$USERNAME'. Must match ^[a-z][a-z0-9-]{2,30}$" >&2
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exit 1
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fi
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# ─── idempotency guard ────────────────────────────────────────────────────────
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if grep -qP "^\s+${USERNAME}\s" "$SNIPPET" 2>/dev/null; then
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echo "ERROR: user '$USERNAME' already exists in $SNIPPET. Remove first with remove_user.sh." >&2
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exit 1
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fi
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# ─── password ─────────────────────────────────────────────────────────────────
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if [ -t 0 ]; then
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# Interactive — generate random password
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PLAIN_PASS="$(LC_ALL=C tr -dc 'A-Za-z0-9' </dev/urandom | head -c 16)"
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else
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# Piped input
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read -r PLAIN_PASS
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fi
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if [[ -z "$PLAIN_PASS" ]]; then
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echo "ERROR: empty password" >&2
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exit 1
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fi
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# ─── bcrypt via caddy container ───────────────────────────────────────────────
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# Caddy 2.11+ requires base64-encoded bcrypt in Caddyfile basic_auth.
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# Password passed via stdin to avoid exposure in process list.
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HASH="$(printf '%s' "$PLAIN_PASS" | docker run --rm -i caddy:2 sh -c '
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pass=$(cat)
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raw=$(caddy hash-password --algorithm bcrypt --plaintext "$pass")
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printf "%s" "$raw" | base64 | tr -d "\n"
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')"
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if [[ -z "$HASH" ]]; then
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echo "ERROR: caddy hash-password returned empty hash" >&2
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exit 1
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fi
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# ─── insert into snippet ─────────────────────────────────────────────────────
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# Insert before the closing brace of basic_auth block
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if ! grep -q '^}' "$SNIPPET"; then
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echo "ERROR: cannot find closing brace in $SNIPPET" >&2
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exit 1
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fi
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# Use a temp file for safe in-place edit
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TMP="$(mktemp)"
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trap 'rm -f "$TMP"' EXIT
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# Insert new user line before the last closing `}` of the basic_auth block
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awk -v user="$USERNAME" -v hash="$HASH" -v comment="$COMMENT" -v date="$DATE" '
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/^}/ && !done {
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printf " %-7s %s # %s (%s)\n", user, hash, comment, date
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done=1
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}
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{ print }
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' "$SNIPPET" > "$TMP"
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mv "$TMP" "$SNIPPET"
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# ─── output ───────────────────────────────────────────────────────────────────
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echo "Added user '$USERNAME' to $SNIPPET"
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echo ""
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echo "Plain password (save now — not stored anywhere):"
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echo "$PLAIN_PASS"
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echo ""
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echo "Next steps:"
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echo " 1. Commit caddy/users.caddy.snippet → PR → merge → GHA deploy"
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echo " 2. After deploy, Caddy auto-reloads (deploy.yml does caddy reload)"
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echo " 3. Send username + password to stakeholder via secure channel"
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