HTTP status

    HTTP_CONTINUE = 100
    HTTP_SWITCHING_PROTOCOLS = 101
    HTTP_PROCESSING = 102
    HTTP_OK = 200 (успешное выполнение)
    HTTP_CREATED = 201
    HTTP_ACCEPTED = 202
    HTTP_NON_AUTHORITATIVE_INFORMATION = 203
    HTTP_NO_CONTENT = 204
    HTTP_RESET_CONTENT = 205
    HTTP_PARTIAL_CONTENT = 206
    HTTP_MULTI_STATUS = 207
    HTTP_ALREADY_REPORTED = 208
    HTTP_IM_USED = 226
    HTTP_MULTIPLE_CHOICES = 300
    HTTP_MOVED_PERMANENTLY = 301
    HTTP_FOUND = 302
    HTTP_SEE_OTHER = 303
    HTTP_NOT_MODIFIED = 304
    HTTP_USE_PROXY = 305
    HTTP_RESERVED = 306
    HTTP_TEMPORARY_REDIRECT = 307
    HTTP_PERMANENTLY_REDIRECT = 308
    HTTP_BAD_REQUEST = 400
    HTTP_UNAUTHORIZED = 401
    HTTP_PAYMENT_REQUIRED = 402
    HTTP_FORBIDDEN = 403
    HTTP_NOT_FOUND = 404
    HTTP_METHOD_NOT_ALLOWED = 405
    HTTP_NOT_ACCEPTABLE = 406
    HTTP_PROXY_AUTHENTICATION_REQUIRED = 407
    HTTP_REQUEST_TIMEOUT = 408
    HTTP_CONFLICT = 409
    HTTP_GONE = 410
    HTTP_INTERNAL_SERVER_ERROR = 500
    HTTP_NOT_IMPLEMENTED = 501
    HTTP_BAD_GATEWAY = 502
    HTTP_SERVICE_UNAVAILABLE = 503
    HTTP_GATEWAY_TIMEOUT = 504
    HTTP_VERSION_NOT_SUPPORTED = 505
    HTTP_LOOP_DETECTED = 508
    HTTP_NOT_EXTENDED = 510
    HTTP_NETWORK_AUTHENTICATION_REQUIRED = 511