feat: add independent Bell authentication and RBAC (#12)

2026-08-12 17:44:31 +08:00
parent a5d846a437
commit a5fc8f5490
28 changed files with 840 additions and 22 deletions
@@ -0,0 +1,4 @@
+CREATE TABLE IF NOT EXISTS bell_runtime_probe (
+    singleton boolean PRIMARY KEY DEFAULT true CHECK (singleton),
+    started_at timestamptz NOT NULL DEFAULT now()
+);
@@ -0,0 +1,62 @@
+CREATE EXTENSION IF NOT EXISTS pgcrypto;
+
+CREATE TABLE bell_roles (
+    id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+    code text NOT NULL UNIQUE CHECK (code IN ('administrator','operator','viewer')),
+    name text NOT NULL
+);
+CREATE TABLE bell_permissions (code text PRIMARY KEY, description text NOT NULL);
+CREATE TABLE bell_role_permissions (
+    role_id uuid NOT NULL REFERENCES bell_roles(id),
+    permission_code text NOT NULL REFERENCES bell_permissions(code),
+    PRIMARY KEY (role_id, permission_code)
+);
+CREATE TABLE bell_users (
+    id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+    username text NOT NULL UNIQUE CHECK (username = lower(username)),
+    display_name text NOT NULL,
+    password_hash text NOT NULL,
+    enabled boolean NOT NULL DEFAULT true,
+    created_at timestamptz NOT NULL DEFAULT now()
+);
+CREATE TABLE bell_user_roles (
+    user_id uuid NOT NULL REFERENCES bell_users(id),
+    role_id uuid NOT NULL REFERENCES bell_roles(id),
+    PRIMARY KEY (user_id, role_id)
+);
+CREATE TABLE bell_sessions (
+    id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id uuid NOT NULL REFERENCES bell_users(id),
+    token_digest bytea NOT NULL UNIQUE,
+    created_at timestamptz NOT NULL DEFAULT now(),
+    expires_at timestamptz NOT NULL,
+    revoked_at timestamptz,
+    CHECK (expires_at > created_at)
+);
+CREATE INDEX bell_sessions_user_active_idx ON bell_sessions(user_id, expires_at) WHERE revoked_at IS NULL;
+CREATE TABLE bell_audit_log (
+    id bigint GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
+    occurred_at timestamptz NOT NULL DEFAULT now(),
+    actor_user_id uuid REFERENCES bell_users(id),
+    action text NOT NULL,
+    target_type text NOT NULL,
+    target_id text,
+    outcome text NOT NULL CHECK (outcome IN ('success','failure','denied')),
+    details jsonb NOT NULL DEFAULT '{}'::jsonb
+);
+
+CREATE OR REPLACE FUNCTION bell_reject_audit_mutation() RETURNS trigger LANGUAGE plpgsql AS $$
+BEGIN RAISE EXCEPTION 'bell audit facts are append-only'; END $$;
+CREATE TRIGGER bell_audit_no_update BEFORE UPDATE OR DELETE ON bell_audit_log FOR EACH ROW EXECUTE FUNCTION bell_reject_audit_mutation();
+
+INSERT INTO bell_roles(code,name) VALUES ('administrator','管理员'),('operator','处置员'),('viewer','只读用户');
+INSERT INTO bell_permissions(code,description) VALUES
+ ('dashboard:read','查看工作台'),('alerts:read','查看预警'),('alerts:handle','处置预警'),
+ ('events:read','查看事件'),('rules:read','查看规则'),('rules:write','管理规则'),
+ ('users:read','查看用户'),('users:write','管理用户与角色'),('audit:read','查看审计');
+INSERT INTO bell_role_permissions(role_id,permission_code)
+SELECT r.id,p.code FROM bell_roles r CROSS JOIN bell_permissions p WHERE r.code='administrator';
+INSERT INTO bell_role_permissions(role_id,permission_code)
+SELECT r.id,p.code FROM bell_roles r JOIN bell_permissions p ON p.code IN ('dashboard:read','alerts:read','alerts:handle','events:read','rules:read') WHERE r.code='operator';
+INSERT INTO bell_role_permissions(role_id,permission_code)
+SELECT r.id,p.code FROM bell_roles r JOIN bell_permissions p ON p.code IN ('dashboard:read','alerts:read','events:read','rules:read') WHERE r.code='viewer';
@@ -0,0 +1,56 @@
+package migrations
+
+import (
+	"context"
+	"embed"
+	"fmt"
+	"io/fs"
+	"sort"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+//go:embed *.sql
+var files embed.FS
+
+func Apply(ctx context.Context, pool *pgxpool.Pool) error {
+	if _, err := pool.Exec(ctx, `CREATE TABLE IF NOT EXISTS bell_schema_migrations (name text PRIMARY KEY, applied_at timestamptz NOT NULL DEFAULT now())`); err != nil {
+		return fmt.Errorf("create migration ledger: %w", err)
+	}
+	entries, err := fs.ReadDir(files, ".")
+	if err != nil {
+		return fmt.Errorf("read embedded migrations: %w", err)
+	}
+	sort.Slice(entries, func(i, j int) bool { return entries[i].Name() < entries[j].Name() })
+	for _, entry := range entries {
+		if entry.IsDir() || len(entry.Name()) < 4 || entry.Name()[len(entry.Name())-4:] != ".sql" {
+			continue
+		}
+		var applied bool
+		if err := pool.QueryRow(ctx, `SELECT EXISTS(SELECT 1 FROM bell_schema_migrations WHERE name=$1)`, entry.Name()).Scan(&applied); err != nil {
+			return err
+		}
+		if applied {
+			continue
+		}
+		sqlBytes, err := files.ReadFile(entry.Name())
+		if err != nil {
+			return err
+		}
+		tx, err := pool.Begin(ctx)
+		if err != nil {
+			return err
+		}
+		if _, err = tx.Exec(ctx, string(sqlBytes)); err == nil {
+			_, err = tx.Exec(ctx, `INSERT INTO bell_schema_migrations(name) VALUES($1)`, entry.Name())
+		}
+		if err != nil {
+			_ = tx.Rollback(ctx)
+			return fmt.Errorf("apply migration %s: %w", entry.Name(), err)
+		}
+		if err := tx.Commit(ctx); err != nil {
+			return fmt.Errorf("commit migration %s: %w", entry.Name(), err)
+		}
+	}
+	return nil
+}