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| 1 | <?php |
| 2 | |
| 3 | namespace Olz\Utils; |
| 4 | |
| 5 | use Olz\Entity\AccessToken; |
| 6 | use Olz\Entity\AuthRequest; |
| 7 | use Olz\Entity\Roles\Role; |
| 8 | use Olz\Entity\Users\User; |
| 9 | use Olz\Exceptions\AuthBlockedException; |
| 10 | use Olz\Exceptions\InvalidCredentialsException; |
| 11 | |
| 12 | class AuthUtils { |
| 13 | use WithUtilsTrait; |
| 14 | |
| 15 | public const MAX_LOOP = 5; |
| 16 | |
| 17 | /** @var array<int, array<string, bool>> */ |
| 18 | protected array $cached_permission_map_by_user = []; |
| 19 | /** @var array<int, array<string, bool>> */ |
| 20 | protected array $cached_permission_map_by_role = []; |
| 21 | /** @var array<string, User> */ |
| 22 | protected array $cached_users = []; |
| 23 | |
| 24 | public function authenticate(string $username_or_email, string $password): User { |
| 25 | $ip_address = $this->server()['REMOTE_ADDR']; |
| 26 | $auth_request_repo = $this->entityManager()->getRepository(AuthRequest::class); |
| 27 | |
| 28 | // If there are invalid credentials provided too often, we block. |
| 29 | $num_remaining_attempts = $auth_request_repo->numRemainingAttempts($ip_address); |
| 30 | if ($num_remaining_attempts <= 0) { |
| 31 | $message = "Login attempt from blocked IP: {$ip_address} (user: {$username_or_email})."; |
| 32 | $this->log()->notice($message); |
| 33 | $auth_request_repo->addAuthRequest($ip_address, 'BLOCKED', $username_or_email); |
| 34 | throw new AuthBlockedException($message); |
| 35 | } |
| 36 | |
| 37 | $user = $this->resolveUsernameOrEmail($username_or_email); |
| 38 | |
| 39 | // If the password is wrong, authentication fails. |
| 40 | $hash = $user?->getPasswordHash(); |
| 41 | if (!$user || !$password || !$hash || !$this->verifyPassword($password, $hash)) { |
| 42 | $message = "Login attempt with invalid credentials from IP: {$ip_address} (user: {$username_or_email})."; |
| 43 | $this->log()->notice($message); |
| 44 | $auth_request_repo->addAuthRequest($ip_address, 'INVALID_CREDENTIALS', $username_or_email); |
| 45 | throw new InvalidCredentialsException($message, $num_remaining_attempts); |
| 46 | } |
| 47 | |
| 48 | $this->log()->info("User login successful: {$username_or_email}"); |
| 49 | $this->log()->info(" Auth: {$user->getPermissions()}"); |
| 50 | $this->log()->info(" Root: {$user->getRoot()}"); |
| 51 | $auth_request_repo->addAuthRequest($ip_address, 'AUTHENTICATED', $username_or_email); |
| 52 | return $user; |
| 53 | } |
| 54 | |
| 55 | public function validateAccessToken(string $access_token): ?User { |
| 56 | $ip_address = $this->server()['REMOTE_ADDR']; |
| 57 | $auth_request_repo = $this->entityManager()->getRepository(AuthRequest::class); |
| 58 | |
| 59 | // If there are invalid credentials provided too often, we block. |
| 60 | $can_validate = $auth_request_repo->canValidateAccessToken($ip_address); |
| 61 | if (!$can_validate) { |
| 62 | $message = "Access token validation from blocked IP: {$ip_address}."; |
| 63 | $this->log()->notice($message); |
| 64 | $auth_request_repo->addAuthRequest($ip_address, 'TOKEN_BLOCKED', ''); |
| 65 | throw new AuthBlockedException($message); |
| 66 | } |
| 67 | |
| 68 | $access_token_repo = $this->entityManager()->getRepository(AccessToken::class); |
| 69 | $access_token = $access_token_repo->findOneBy(['token' => $access_token]); |
| 70 | $user = $access_token ? $access_token->getUser() : null; |
| 71 | |
| 72 | // If the access token is invalid, authentication fails. |
| 73 | if (!$access_token || !$user) { |
| 74 | $message = "Invalid access token validation from IP: {$ip_address}."; |
| 75 | $this->log()->notice($message); |
| 76 | $auth_request_repo->addAuthRequest($ip_address, 'INVALID_TOKEN', ''); |
| 77 | throw new InvalidCredentialsException($message); |
| 78 | } |
| 79 | |
| 80 | $now = $this->dateUtils()->getIsoNow(); |
| 81 | $expires_at = $access_token->getExpiresAt(); |
| 82 | $is_access_token_expired = ( |
| 83 | $expires_at !== null |
| 84 | && $expires_at->format('Y-m-d H:i:s') < $now |
| 85 | ); |
| 86 | |
| 87 | // If the access token is expired, authentication fails. |
| 88 | if ($is_access_token_expired) { |
| 89 | $message = "Expired access token validation from IP: {$ip_address}."; |
| 90 | $this->log()->notice($message); |
| 91 | $auth_request_repo->addAuthRequest($ip_address, 'EXPIRED_TOKEN', ''); |
| 92 | throw new InvalidCredentialsException($message); |
| 93 | } |
| 94 | |
| 95 | $this->log()->info("Token validation successful: {$access_token->getId()}"); |
| 96 | $auth_request_repo->addAuthRequest($ip_address, 'TOKEN_VALIDATED', $user->getUsername()); |
| 97 | return $user; |
| 98 | } |
| 99 | |
| 100 | public function resolveUsernameOrEmail(string $username_or_email): ?User { |
| 101 | $user_repo = $this->entityManager()->getRepository(User::class); |
| 102 | $user = $user_repo->findOneBy(['username' => $username_or_email]); |
| 103 | if (!$user) { |
| 104 | $user = $user_repo->findOneBy(['email' => $username_or_email]); |
| 105 | } |
| 106 | if (!$user) { |
| 107 | $user = $user_repo->findOneBy(['old_username' => $username_or_email]); |
| 108 | } |
| 109 | $res = preg_match( |
| 110 | '/^([a-zA-Z0-9-_\.]+)@olzimmerberg.ch$/', |
| 111 | $username_or_email, |
| 112 | $matches |
| 113 | ); |
| 114 | if (!$user && $res) { |
| 115 | $user = $user_repo->findOneBy(['username' => $matches[1]]); |
| 116 | } |
| 117 | if (!$user && $res) { |
| 118 | $user = $user_repo->findOneBy(['old_username' => $matches[1]]); |
| 119 | } |
| 120 | return $user; |
| 121 | } |
| 122 | |
| 123 | public function hasPermission(string $query, ?User $user = null): bool { |
| 124 | if (!$user) { |
| 125 | $user = $this->getCurrentUser(); |
| 126 | } |
| 127 | $user_permission_map = $this->getUserPermissionMap($user); |
| 128 | $roles = $this->getAuthenticatedRoles($user) ?? []; |
| 129 | $permission_map = [...$user_permission_map]; |
| 130 | foreach ($roles as $role) { |
| 131 | $role_permission_map = $this->getRolePermissionMap($role); |
| 132 | $permission_map = [...$role_permission_map, ...$permission_map]; |
| 133 | } |
| 134 | return ($permission_map['all'] ?? false) || ($permission_map[$query] ?? false); |
| 135 | } |
| 136 | |
| 137 | public function hasUserPermission(string $query, ?User $user): bool { |
| 138 | $permission_map = $this->getUserPermissionMap($user); |
| 139 | return ($permission_map['all'] ?? false) || ($permission_map[$query] ?? false); |
| 140 | } |
| 141 | |
| 142 | /** @return array<string, bool> */ |
| 143 | protected function getUserPermissionMap(?User $user): array { |
| 144 | if (!$user) { |
| 145 | return ['any' => false]; |
| 146 | } |
| 147 | $user_id = $user->getId() ?: 0; |
| 148 | $permission_map = $this->cached_permission_map_by_user[$user_id] ?? null; |
| 149 | if ($permission_map != null) { |
| 150 | return $permission_map; |
| 151 | } |
| 152 | $permission_list = preg_split('/[ ]+/', $user->getPermissions()) ?: []; |
| 153 | $permission_map = ['any' => true]; |
| 154 | foreach ($permission_list as $permission) { |
| 155 | $permission_map[$permission] = true; |
| 156 | } |
| 157 | $this->cached_permission_map_by_user[$user_id] = $permission_map; |
| 158 | return $permission_map; |
| 159 | } |
| 160 | |
| 161 | public function hasRolePermission(string $query, ?Role $role): bool { |
| 162 | $permission_map = $this->getRolePermissionMap($role); |
| 163 | return ($permission_map['all'] ?? false) || ($permission_map[$query] ?? false); |
| 164 | } |
| 165 | |
| 166 | /** @return array<string, bool> */ |
| 167 | protected function getRolePermissionMap(?Role $role): array { |
| 168 | if (!$role) { |
| 169 | return ['any' => false]; |
| 170 | } |
| 171 | $role_id = $role->getId() ?: 0; |
| 172 | $permission_map = $this->cached_permission_map_by_role[$role_id] ?? null; |
| 173 | if ($permission_map != null) { |
| 174 | return $permission_map; |
| 175 | } |
| 176 | $permission_list = preg_split('/[ ]+/', $role->getPermissions()) ?: []; |
| 177 | $permission_map = ['any' => true]; |
| 178 | foreach ($permission_list as $permission) { |
| 179 | $permission_map[$permission] = true; |
| 180 | } |
| 181 | $this->cached_permission_map_by_role[$role_id] = $permission_map; |
| 182 | return $permission_map; |
| 183 | } |
| 184 | |
| 185 | public function getCurrentUser(): ?User { |
| 186 | $user = $this->getTokenUser(); |
| 187 | if ($user) { |
| 188 | return $user; |
| 189 | } |
| 190 | return $this->getSessionUser(); |
| 191 | } |
| 192 | |
| 193 | public function getCurrentAuthUser(): ?User { |
| 194 | return $this->getSessionAuthUser(); |
| 195 | } |
| 196 | |
| 197 | public function getTokenUser(): ?User { |
| 198 | $access_token = $this->getParams()['access_token'] ?? null; |
| 199 | if (!$access_token) { |
| 200 | return null; |
| 201 | } |
| 202 | try { |
| 203 | return $this->validateAccessToken($access_token); |
| 204 | } catch (AuthBlockedException $exc) { |
| 205 | return null; |
| 206 | } catch (InvalidCredentialsException $exc) { |
| 207 | return null; |
| 208 | } catch (\Exception $exc) { |
| 209 | throw $exc; |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | public function getSessionUser(): ?User { |
| 214 | $username = $this->session()->get('user'); |
| 215 | return $this->getUserByUsername($username); |
| 216 | } |
| 217 | |
| 218 | public function getSessionAuthUser(): ?User { |
| 219 | $auth_username = $this->session()->get('auth_user'); |
| 220 | return $this->getUserByUsername($auth_username); |
| 221 | } |
| 222 | |
| 223 | private function getUserByUsername(?string $username): ?User { |
| 224 | if (!$username) { |
| 225 | return null; |
| 226 | } |
| 227 | $cached_user = $this->cached_users[$username] ?? null; |
| 228 | if ($cached_user) { |
| 229 | return $cached_user; |
| 230 | } |
| 231 | $user_repo = $this->entityManager()->getRepository(User::class); |
| 232 | $fetched_user = $user_repo->findOneBy(['username' => $username]); |
| 233 | if ($fetched_user) { |
| 234 | $this->cached_users[$username] = $fetched_user; |
| 235 | } |
| 236 | return $fetched_user; |
| 237 | } |
| 238 | |
| 239 | /** @return ?array<Role> */ |
| 240 | public function getAuthenticatedRoles(?User $user = null): ?array { |
| 241 | if (!$user) { |
| 242 | $user = $this->getCurrentUser(); |
| 243 | } |
| 244 | if (!$user) { |
| 245 | return null; |
| 246 | } |
| 247 | return [...$user->getRoles()]; |
| 248 | } |
| 249 | |
| 250 | public function isRoleIdAuthenticated(int $role_id): bool { |
| 251 | $authenticated_roles = $this->getAuthenticatedRoles() ?? []; |
| 252 | foreach ($authenticated_roles as $authenticated_role) { |
| 253 | if ($authenticated_role->getId() === $role_id) { |
| 254 | return true; |
| 255 | } |
| 256 | } |
| 257 | return false; |
| 258 | } |
| 259 | |
| 260 | public function hasRoleEditPermission(?int $role_id = null): bool { |
| 261 | $user = $this->getCurrentUser(); |
| 262 | if ($this->hasPermission('roles', $user)) { |
| 263 | return true; |
| 264 | } |
| 265 | $auth_roles = $this->getAuthenticatedRoles($user); |
| 266 | $is_role_id_authenticated = []; |
| 267 | foreach (($auth_roles ?? []) as $auth_role) { |
| 268 | $is_role_id_authenticated[$auth_role->getId()] = true; |
| 269 | } |
| 270 | $role_repo = $this->entityManager()->getRepository(Role::class); |
| 271 | for ($i = 0; $i < self::MAX_LOOP; $i++) { |
| 272 | if ($role_id === null) { |
| 273 | return false; |
| 274 | } |
| 275 | if (($is_role_id_authenticated[$role_id] ?? false) === true) { |
| 276 | return true; |
| 277 | } |
| 278 | $role = $role_repo->findOneBy(['id' => $role_id]); |
| 279 | $role_id = $role?->getParentRoleId() ?? null; |
| 280 | } |
| 281 | return false; |
| 282 | } |
| 283 | |
| 284 | public function isUsernameAllowed(string $username): bool { |
| 285 | return preg_match('/^[a-zA-Z0-9-_\.]+$/', $username) ? true : false; |
| 286 | } |
| 287 | |
| 288 | public function isPasswordAllowed(string $password): bool { |
| 289 | return strlen($password) >= 8; |
| 290 | } |
| 291 | |
| 292 | /** @return array<string, string> */ |
| 293 | public function getUserAvatar(?User $user): array { |
| 294 | $env_utils = $this->envUtils(); |
| 295 | $code_href = $env_utils->getCodeHref(); |
| 296 | $data_href = $env_utils->getDataHref(); |
| 297 | if (!$user) { |
| 298 | $initials_enc = urlencode('?'); |
| 299 | return ['1x' => "{$code_href}assets/user_initials_{$initials_enc}.svg"]; |
| 300 | } |
| 301 | if ($user->getAvatarImageId()) { |
| 302 | $image_id = $user->getAvatarImageId(); |
| 303 | return [ |
| 304 | '2x' => "{$data_href}img/users/{$user->getId()}/thumb/{$image_id}\$256.jpg", |
| 305 | '1x' => "{$data_href}img/users/{$user->getId()}/thumb/{$image_id}\$128.jpg", |
| 306 | ]; |
| 307 | } |
| 308 | $first_initial = mb_substr($user->getFirstName(), 0, 1); |
| 309 | $last_initial = mb_substr($user->getLastName(), 0, 1); |
| 310 | $initials_enc = urlencode(strtoupper("{$first_initial}{$last_initial}")); |
| 311 | return ['1x' => "{$code_href}assets/user_initials_{$initials_enc}.svg"]; |
| 312 | } |
| 313 | |
| 314 | public function hashPassword(string $password): string { |
| 315 | return password_hash($password, PASSWORD_DEFAULT); |
| 316 | } |
| 317 | |
| 318 | public function verifyPassword(string $password, string $hash): bool { |
| 319 | return password_verify($password, $hash); |
| 320 | } |
| 321 | |
| 322 | public static function fromEnv(): self { |
| 323 | return new self(); |
| 324 | } |
| 325 | } |