Files
mal/cmd/user/main.go

261 lines
7.1 KiB
Go

// Package main provides small CLI utilities for local admin tasks.
package main
import (
"bufio"
"context"
"database/sql"
"errors"
"fmt"
"os"
"strings"
"github.com/google/uuid"
"golang.org/x/crypto/bcrypt"
"mal/internal"
"mal/internal/config"
"mal/internal/db"
"mal/internal/observability"
errlog "mal/pkg"
)
func main() {
cfg, err := config.Load()
if err != nil {
observability.Error("cli_config_load_failed", "cmd/user", "", nil, err)
os.Exit(1)
}
dbConn, err := db.Open(cfg.DatabaseFile)
if err != nil {
observability.Error("cli_db_open_failed", "cmd/user", "", map[string]any{"db_file": cfg.DatabaseFile}, err)
os.Exit(1)
}
defer errlog.Close(dbConn, "failed to close cli database")
os.Exit(run(dbConn, os.Args))
}
func run(dbConn *sql.DB, args []string) int {
ctx := context.Background()
cmd, err := parseArgs(args)
if err != nil {
observability.Warn("cli_usage", "cmd/user", "invalid arguments", map[string]any{"argc": len(args)}, err)
if _, writeErr := fmt.Fprintln(os.Stderr, usage()); writeErr != nil {
observability.Warn("cli_usage_write_failed", "cmd/user", "", nil, writeErr)
}
return 2
}
switch cmd.kind {
case commandUpdateAvatar:
updateAvatars(ctx, dbConn)
return 0
case commandRunFixes:
runFixes(ctx, dbConn)
return 0
case commandCreateOrUpdateUser:
if err := createOrUpdateUser(ctx, dbConn, cmd.username, cmd.password); err != nil {
return 1
}
return 0
default:
observability.Error("cli_command_unreachable", "cmd/user", "", map[string]any{"kind": cmd.kind}, errors.New("unhandled command"))
return 1
}
}
type commandKind string
const (
commandUpdateAvatar commandKind = "update-avatar"
commandRunFixes commandKind = "run-fixes"
commandCreateOrUpdateUser commandKind = "create-or-update-user"
)
type command struct {
kind commandKind
username string
password string
}
func parseArgs(args []string) (command, error) {
if len(args) == 2 {
switch args[1] {
case string(commandUpdateAvatar):
return command{kind: commandUpdateAvatar}, nil
case string(commandRunFixes):
return command{kind: commandRunFixes}, nil
}
}
if len(args) == 3 {
return command{
kind: commandCreateOrUpdateUser,
username: args[1],
password: args[2],
}, nil
}
return command{}, errors.New("invalid arguments")
}
func usage() string {
return "Usage: go run cmd/user/main.go <username> <password>\n go run cmd/user/main.go update-avatar\n go run cmd/user/main.go run-fixes"
}
func createOrUpdateUser(ctx context.Context, dbConn *sql.DB, username string, password string) error {
existingID, err := lookupUserID(ctx, dbConn, username)
if err != nil {
observability.Error("cli_user_lookup_failed", "cmd/user", "", map[string]any{"username": username}, err)
return err
}
if existingID != "" {
if !promptConfirmOverwrite(username) {
fmt.Println("Operation cancelled.")
return nil
}
if err := updateUserPassword(ctx, dbConn, existingID, username, password); err != nil {
return err
}
fmt.Printf("Password for '%s' updated successfully!\n", username)
return nil
}
if err := createUser(ctx, dbConn, username, password); err != nil {
return err
}
fmt.Printf("User '%s' was created successfully!\n", username)
return nil
}
func lookupUserID(ctx context.Context, dbConn *sql.DB, username string) (string, error) {
var id string
err := dbConn.QueryRowContext(ctx, "SELECT id FROM user WHERE username = ?", username).Scan(&id)
if err == nil {
return id, nil
}
if errors.Is(err, sql.ErrNoRows) {
return "", nil
}
return "", err
}
func promptConfirmOverwrite(username string) bool {
fmt.Printf("User '%s' already exists. Do you want to overwrite their password? [y/N]: ", username)
reader := bufio.NewReader(os.Stdin)
response, err := reader.ReadString('\n')
if err != nil {
observability.Warn("cli_confirm_read_failed", "cmd/user", "", map[string]any{"username": username}, err)
return false
}
response = strings.TrimSpace(strings.ToLower(response))
return response == "y" || response == "yes"
}
func updateUserPassword(ctx context.Context, dbConn *sql.DB, userID string, username string, password string) error {
hash, err := bcrypt.GenerateFromPassword([]byte(password), 12)
if err != nil {
observability.Error("cli_password_hash_failed", "cmd/user", "", nil, err)
return err
}
_, err = dbConn.ExecContext(ctx, "UPDATE user SET password_hash = ? WHERE id = ?", string(hash), userID)
if err != nil {
observability.Error("cli_user_password_update_failed", "cmd/user", "", map[string]any{"username": username}, err)
return err
}
return nil
}
func createUser(ctx context.Context, dbConn *sql.DB, username string, password string) error {
hash, err := bcrypt.GenerateFromPassword([]byte(password), 12)
if err != nil {
observability.Error("cli_password_hash_failed", "cmd/user", "", nil, err)
return err
}
id := uuid.New().String()
avatarURL := internal.DefaultAvatarURL(username)
_, err = dbConn.ExecContext(
ctx,
"INSERT INTO user (id, username, password_hash, avatar_url) VALUES (?, ?, ?, ?)",
id,
username,
string(hash),
avatarURL,
)
if err != nil {
observability.Error("cli_user_create_failed", "cmd/user", "", map[string]any{"username": username}, err)
return err
}
return nil
}
func updateAvatars(ctx context.Context, dbConn *sql.DB) {
rows, err := dbConn.QueryContext(ctx, "SELECT id, username FROM user")
if err != nil {
observability.Error("cli_users_list_failed", "cmd/user", "", nil, err)
os.Exit(1)
}
defer errlog.Close(rows, "failed to close users rows")
count := 0
for rows.Next() {
var id, username string
if err := rows.Scan(&id, &username); err != nil {
observability.Error("cli_user_scan_failed", "cmd/user", "", nil, err)
os.Exit(1)
}
avatarURL := internal.DefaultAvatarURL(username)
_, err := dbConn.ExecContext(ctx, "UPDATE user SET avatar_url = ? WHERE id = ?", avatarURL, id)
if err != nil {
observability.Error("cli_user_avatar_update_failed", "cmd/user", "", map[string]any{"username": username}, err)
os.Exit(1)
}
count++
}
if err := rows.Err(); err != nil {
observability.Error("cli_users_iter_failed", "cmd/user", "", nil, err)
os.Exit(1)
}
fmt.Printf("Updated avatars for %d user(s)\n", count)
}
func runFixes(ctx context.Context, dbConn *sql.DB) {
if err := internal.RunMigrationsAndFixes(dbConn); err != nil {
observability.Error("cli_run_migrations_and_fixes_failed", "cmd/user", "", nil, err)
os.Exit(1)
}
rows, err := dbConn.QueryContext(ctx, "SELECT id, applied_at FROM data_fixes ORDER BY id ASC")
if err != nil {
observability.Error("cli_data_fixes_list_failed", "cmd/user", "", nil, err)
os.Exit(1)
}
defer errlog.Close(rows, "failed to close data fixes rows")
count := 0
for rows.Next() {
var id string
var appliedAt string
if err := rows.Scan(&id, &appliedAt); err != nil {
observability.Error("cli_data_fix_scan_failed", "cmd/user", "", nil, err)
os.Exit(1)
}
fmt.Printf("%s applied_at=%s\n", id, appliedAt)
count++
}
if err := rows.Err(); err != nil {
observability.Error("cli_data_fixes_iter_failed", "cmd/user", "", nil, err)
os.Exit(1)
}
fmt.Printf("Applied fixes: %d\n", count)
}