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@appium/base-driver

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Base driver class for Appium drivers

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import _ from 'lodash'; import {util, logger} from '@appium/support'; import {StatusCodes as HTTPStatusCodes} from 'http-status-codes'; const mjsonwpLog = logger.getLogger('MJSONWP'); const w3cLog = logger.getLogger('W3C'); const W3C_UNKNOWN_ERROR = 'unknown error'; class BaseError extends Error { constructor(message = '') { super(message); /** @type {[string, () => any][]} */ const propsMap = [ ['message', () => message], ['name', () => this.constructor.name], ['stack', () => (new Error(message)).stack], ]; // eslint-disable-next-line no-prototype-builtins const shouldSkipStack = Error.hasOwnProperty('captureStackTrace'); for (const [propName, valueGetter] of propsMap) { if (propName === 'stack' && shouldSkipStack) { continue; } Object.defineProperty(this, propName, { configurable: true, enumerable: false, value: valueGetter(), writable: true, }); } if (shouldSkipStack) { Error.captureStackTrace(this, this.constructor); } } } // base error class for all of our errors export class ProtocolError extends BaseError { constructor(msg, jsonwpCode, w3cStatus, error) { super(msg); this.jsonwpCode = jsonwpCode; this.error = error || W3C_UNKNOWN_ERROR; if (this.jsonwpCode === null) { this.jsonwpCode = 13; } this.w3cStatus = w3cStatus || HTTPStatusCodes.BAD_REQUEST; this._stacktrace = null; } get stacktrace() { return this._stacktrace || this.stack; } set stacktrace(value) { this._stacktrace = value; } /** * Get the Bidi protocol version of an error * @param {string|number} id - the id used in the request for which this error forms the response * @see https://w3c.github.io/webdriver-bidi/#protocol-definition * @returns {import('@appium/types').ErrorBiDiCommandResponse} The object conforming to the shape of a BiDi error response */ bidiErrObject(id) { // if we don't have an id, the client didn't send one, so we have nothing to send back. // send back zero rather than making something up const intId = /** @type {number} */ (_.isInteger(id) ? id : (parseInt(`${id}`, 10) || 0)); return { id: intId, type: 'error', error: this.error, stacktrace: this.stacktrace, message: this.message, }; } } // https://github.com/SeleniumHQ/selenium/blob/176b4a9e3082ac1926f2a436eb346760c37a5998/java/client/src/org/openqa/selenium/remote/ErrorCodes.java#L215 // https://github.com/SeleniumHQ/selenium/issues/5562#issuecomment-370379470 // https://w3c.github.io/webdriver/webdriver-spec.html#dfn-error-code export class NoSuchDriverError extends ProtocolError { static code() { return 6; } // W3C Error is called InvalidSessionID static w3cStatus() { return HTTPStatusCodes.NOT_FOUND; } static error() { return 'invalid session id'; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'A session is either terminated or not started', NoSuchDriverError.code(), NoSuchDriverError.w3cStatus(), NoSuchDriverError.error(), ); } } export class NoSuchElementError extends ProtocolError { static code() { return 7; } static w3cStatus() { return HTTPStatusCodes.NOT_FOUND; } static error() { return 'no such element'; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'An element could not be located on the page using the given ' + 'search parameters.', NoSuchElementError.code(), NoSuchElementError.w3cStatus(), NoSuchElementError.error(), ); } } export class NoSuchFrameError extends ProtocolError { static code() { return 8; } static error() { return 'no such frame'; } static w3cStatus() { return HTTPStatusCodes.NOT_FOUND; } /** * * @param {string} [message] */ constructor(message) { super( message || 'A request to switch to a frame could not be satisfied because ' + 'the frame could not be found.', NoSuchFrameError.code(), NoSuchFrameError.w3cStatus(), NoSuchFrameError.error(), ); } } export class UnknownCommandError extends ProtocolError { static code() { return 9; } static w3cStatus() { return HTTPStatusCodes.NOT_FOUND; } static error() { return 'unknown command'; } /** * * @param {string} [message] */ constructor(message) { super( message || 'The requested resource could not be found, or a request was ' + 'received using an HTTP method that is not supported by the mapped ' + 'resource.', UnknownCommandError.code(), UnknownCommandError.w3cStatus(), UnknownCommandError.error(), ); } } export class StaleElementReferenceError extends ProtocolError { static code() { return 10; } static w3cStatus() { return HTTPStatusCodes.NOT_FOUND; } static error() { return 'stale element reference'; } /** * * @param {string} [message] */ constructor(message) { super( message || 'An element command failed because the referenced element is no ' + 'longer attached to the DOM.', StaleElementReferenceError.code(), StaleElementReferenceError.w3cStatus(), StaleElementReferenceError.error(), ); } } export class ElementNotVisibleError extends ProtocolError { static code() { return 11; } static w3cStatus() { return HTTPStatusCodes.BAD_REQUEST; } static error() { return 'element not visible'; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'An element command could not be completed because the element is ' + 'not visible on the page.', ElementNotVisibleError.code(), ElementNotVisibleError.w3cStatus(), ElementNotVisibleError.error(), ); } } export class InvalidElementStateError extends ProtocolError { static code() { return 12; } static w3cStatus() { return HTTPStatusCodes.BAD_REQUEST; } static error() { return 'invalid element state'; } /** * * @param {string} [message] */ constructor(message) { super( message || 'An element command could not be completed because the element is ' + 'in an invalid state (e.g. attempting to click a disabled element).', InvalidElementStateError.code(), InvalidElementStateError.w3cStatus(), InvalidElementStateError.error(), ); } } export class UnknownError extends ProtocolError { static code() { return 13; } static w3cStatus() { return HTTPStatusCodes.INTERNAL_SERVER_ERROR; } static error() { return W3C_UNKNOWN_ERROR; } constructor(errorOrMessage) { const origMessage = _.isString((errorOrMessage || {}).message) ? errorOrMessage.message : errorOrMessage; const message = 'An unknown server-side error occurred while processing the command.' + (origMessage ? ` Original error: ${origMessage}` : ''); super(message, UnknownError.code(), UnknownError.w3cStatus(), UnknownError.error()); } } export class UnknownMethodError extends ProtocolError { static code() { return 405; } static w3cStatus() { return HTTPStatusCodes.METHOD_NOT_ALLOWED; } static error() { return 'unknown method'; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'The requested command matched a known URL but did not match an method for that URL', UnknownMethodError.code(), UnknownMethodError.w3cStatus(), UnknownMethodError.error(), ); } } export class UnsupportedOperationError extends ProtocolError { static code() { return 405; } static w3cStatus() { return HTTPStatusCodes.INTERNAL_SERVER_ERROR; } static error() { return 'unsupported operation'; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'A server-side error occurred. Command cannot be supported.', UnsupportedOperationError.code(), UnsupportedOperationError.w3cStatus(), UnsupportedOperationError.error(), ); } } export class ElementIsNotSelectableError extends ProtocolError { static code() { return 15; } static error() { return 'element not selectable'; } static w3cStatus() { return HTTPStatusCodes.BAD_REQUEST; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'An attempt was made to select an element that cannot be selected.', ElementIsNotSelectableError.code(), ElementIsNotSelectableError.w3cStatus(), ElementIsNotSelectableError.error(), ); } } export class ElementClickInterceptedError extends ProtocolError { static code() { return 64; } static error() { return 'element click intercepted'; } static w3cStatus() { return HTTPStatusCodes.BAD_REQUEST; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'The Element Click command could not be completed because the element receiving ' + 'the events is obscuring the element that was requested clicked', ElementClickInterceptedError.code(), ElementClickInterceptedError.w3cStatus(), ElementClickInterceptedError.error(), ); } } export class ElementNotInteractableError extends ProtocolError { static code() { return 60; } static error() { return 'element not interactable'; } static w3cStatus() { return HTTPStatusCodes.BAD_REQUEST; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'A command could not be completed because the element is not pointer- or keyboard interactable', ElementNotInteractableError.code(), ElementNotInteractableError.w3cStatus(), ElementNotInteractableError.error(), ); } } export class InsecureCertificateError extends ProtocolError { static error() { return 'insecure certificate'; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'Navigation caused the user agent to hit a certificate warning, which is usually the result of an expired or invalid TLS certificate', ElementIsNotSelectableError.code(), null, InsecureCertificateError.error(), ); } } export class JavaScriptError extends ProtocolError { static code() { return 17; } static w3cStatus() { return HTTPStatusCodes.INTERNAL_SERVER_ERROR; } static error() { return 'javascript error'; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'An error occurred while executing user supplied JavaScript.', JavaScriptError.code(), JavaScriptError.w3cStatus(), JavaScriptError.error(), ); } } export class XPathLookupError extends ProtocolError { static code() { return 19; } static w3cStatus() { return HTTPStatusCodes.BAD_REQUEST; } static error() { return 'invalid selector'; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'An error occurred while searching for an element by XPath.', XPathLookupError.code(), XPathLookupError.w3cStatus(), XPathLookupError.error(), ); } } export class TimeoutError extends ProtocolError { static code() { return 21; } static w3cStatus() { return HTTPStatusCodes.REQUEST_TIMEOUT; } static error() { return 'timeout'; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'An operation did not complete before its timeout expired.', TimeoutError.code(), TimeoutError.w3cStatus(), TimeoutError.error(), ); } } export class NoSuchWindowError extends ProtocolError { static code() { return 23; } static error() { return 'no such window'; } static w3cStatus() { return HTTPStatusCodes.NOT_FOUND; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'A request to switch to a different window could not be satisfied ' + 'because the window could not be found.', NoSuchWindowError.code(), NoSuchWindowError.w3cStatus(), NoSuchWindowError.error(), ); } } export class InvalidArgumentError extends ProtocolError { static code() { return 61; } static error() { return 'invalid argument'; } static w3cStatus() { return HTTPStatusCodes.BAD_REQUEST; } /** * @param {string} [err] error message */ constructor(err) { super( err || 'The arguments passed to the command are either invalid or malformed', InvalidArgumentError.code(), InvalidArgumentError.w3cStatus(), InvalidArgumentError.error(), ); } } export class InvalidCookieDomainError extends ProtocolError { static code() { return 24; } static error() { return 'invalid cookie domain'; } static w3cStatus() { return HTTPStatusCodes.BAD_REQUEST; } /** * @param {string} [err] error message */ constructor(err) { super( err || 'An illegal attempt was made to set a cookie under a different ' + 'domain than the current page.', InvalidCookieDomainError.code(), InvalidCookieDomainError.w3cStatus(), InvalidCookieDomainError.error(), ); } } export class NoSuchCookieError extends ProtocolError { static code() { return 62; } static w3cStatus() { return HTTPStatusCodes.NOT_FOUND; } static error() { return 'no such cookie'; } /** * @param {string} [err] error message */ constructor(err) { super( err || 'No cookie matching the given path name was found amongst the associated cookies of the current browsing context’s active document', NoSuchCookieError.code(), NoSuchCookieError.w3cStatus(), NoSuchCookieError.error(), ); } } export class UnableToSetCookieError extends ProtocolError { static code() { return 25; } static w3cStatus() { return HTTPStatusCodes.INTERNAL_SERVER_ERROR; } static error() { return 'unable to set cookie'; } /** * @param {string} [err] error message */ constructor(err) { super( err || "A request to set a cookie's value could not be satisfied.", UnableToSetCookieError.code(), UnableToSetCookieError.w3cStatus(), UnableToSetCookieError.error(), ); } } export class UnexpectedAlertOpenError extends ProtocolError { static code() { return 26; } static w3cStatus() { return HTTPStatusCodes.INTERNAL_SERVER_ERROR; } static error() { return 'unexpected alert open'; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'A modal dialog was open, blocking this operation', UnexpectedAlertOpenError.code(), UnexpectedAlertOpenError.w3cStatus(), UnexpectedAlertOpenError.error(), ); } } export class NoAlertOpenError extends ProtocolError { static code() { return 27; } static w3cStatus() { return HTTPStatusCodes.NOT_FOUND; } static error() { return 'no such alert'; } /** * * @param {string} [message] */ constructor(message) { super( message || 'An attempt was made to operate on a modal dialog when one ' + 'was not open.', NoAlertOpenError.code(), NoAlertOpenError.w3cStatus(), NoAlertOpenError.error(), ); } } export class NoSuchAlertError extends NoAlertOpenError {} export class ScriptTimeoutError extends ProtocolError { static code() { return 28; } static w3cStatus() { return HTTPStatusCodes.REQUEST_TIMEOUT; } static error() { return 'script timeout'; } /** * @param {string} [err] error message */ constructor(err) { super( err || 'A script did not complete before its timeout expired.', ScriptTimeoutError.code(), ScriptTimeoutError.w3cStatus(), ScriptTimeoutError.error(), ); } } export class InvalidElementCoordinatesError extends ProtocolError { static code() { return 29; } static w3cStatus() { return HTTPStatusCodes.BAD_REQUEST; } static error() { return 'invalid coordinates'; } /** * @param {string} [err] error message */ constructor(err) { super( err || 'The coordinates provided to an interactions operation are invalid.', InvalidElementCoordinatesError.code(), InvalidElementCoordinatesError.w3cStatus(), InvalidElementCoordinatesError.error(), ); } } export class InvalidCoordinatesError extends InvalidElementCoordinatesError {} export class IMENotAvailableError extends ProtocolError { static code() { return 30; } static w3cStatus() { return HTTPStatusCodes.INTERNAL_SERVER_ERROR; } static error() { return 'unsupported operation'; } /** * @param {string} [message] error message */ constructor(message) { super( message || 'IME was not available.', IMENotAvailableError.code(), IMENotAvailableError.w3cStatus(), IMENotAvailableError.error(), ); } } export class IMEEngineActivationFailedError extends ProtocolError { static code() { return 31; } static w3cStatus() { return HTTPStatusCodes.INTERNAL_SERVER_ERROR; } static error() { return 'unsupported operation'; } /** * @param {string} [err] error message */ constructor(err) { super( err || 'An IME engine could not be started.', IMEEngineActivationFailedError.code(), IMEEngineActivationFailedError.w3cStatus(), IMEEngineActivationFailedError.error(), ); } } export class InvalidSelectorError extends ProtocolError { static code() { return 32; } static w3cStatus() { return HTTPStatusCodes.BAD_REQUEST; } static error() { return 'invalid selector'; } /** * @param {string} [err] error message */ constructor(err) { super( err || 'Argument was an invalid selector (e.g. XPath/CSS).', InvalidSelectorError.code(), InvalidSelectorError.w3cStatus(), InvalidSelectorError.error(), ); } } export class SessionNotCreatedError extends ProtocolError { static code() { return 33; } static w3cStatus() { return HTTPStatusCodes.INTERNAL_SERVER_ERROR; } static error() { return 'session not created'; } constructor(details) { let message = 'A new session could not be created.'; if (details) { message += ` Details: ${details}`; } super( message, SessionNotCreatedError.code(), SessionNotCreatedError.w3cStatus(), SessionNotCreatedError.error(), ); } } export class MoveTargetOutOfBoundsError extends ProtocolError { static code() { return 34; } static w3cStatus() { return HTTPStatusCodes.INTERNAL_SERVER_ERROR; } static error() { return 'move target out of bounds'; } /** * @param {string} [err] error message */ constructor(err) { super( err || 'Target provided for a move action is out of bounds.', MoveTargetOutOfBoundsError.code(), MoveTargetOutOfBoundsError.w3cStatus(), MoveTargetOutOfBoundsError.error(), ); } } export class NoSuchContextError extends ProtocolError { static code() { return 35; } /** * * @param {string} [message] */ constructor(message) { super(message || 'No such context found.', NoSuchContextError.code()); } } export class InvalidContextError extends ProtocolError { static code() { return 36; } /** * * @param {string} [message] */ constructor(message) { super( message || 'That command could not be executed in the current context.', InvalidContextError.code(), ); } } // These are aliases for UnknownMethodError export class NotYetImplementedError extends UnknownMethodError { /** * @param {string} [err] error message */ constructor(err) { super(err || 'Method has not yet been implemented'); } } export class NotImplementedError extends UnknownMethodError { /** * @param {string} [err] error message */ constructor(err) { super(err || 'Method is not implemented'); } } export class UnableToCaptureScreen extends ProtocolError { static code() { return 63; } static w3cStatus() { return HTTPStatusCodes.INTERNAL_SERVER_ERROR; } static error() { return 'unable to capture screen'; } /** * @param {string} [err] error message */ constructor(err) { super( err || 'A screen capture was made impossible', UnableToCaptureScreen.code(), UnableToCaptureScreen.w3cStatus(), UnableToCaptureScreen.error(), ); } } function generateBadParametersMessage(requiredParams, actualParams) { const toArray = (/** @type {any} */ x) => (_.isArray(x) ? x : []); const requiredParamNames = toArray(requiredParams?.required); const actualParamNames = toArray(actualParams); const missingRequiredParamNames = _.difference(requiredParamNames, actualParamNames); /** @type {string[]} */ const resultLines = []; resultLines.push( _.isEmpty(missingRequiredParamNames) ? // This should not happen 'Some of the provided parameters are not known' : `The following required parameter${ missingRequiredParamNames.length === 1 ? ' is ' : 's are ' }` + `missing: ${JSON.stringify(missingRequiredParamNames)}`, ); if (!_.isEmpty(requiredParamNames)) { resultLines.push(`Known required parameters are: ${JSON.stringify(requiredParamNames)}`); } const optionalParamNames = _.difference(toArray(requiredParams?.optional), ['sessionId', 'id']); if (!_.isEmpty(optionalParamNames)) { resultLines.push(`Known optional parameters are: ${JSON.stringify(optionalParamNames)}`); } resultLines.push( `You have provided${ _.isEmpty(actualParamNames) ? ' none' : ': ' + JSON.stringify(actualParams) }`, ); return resultLines.join('\n'); } // Equivalent to W3C InvalidArgumentError export class BadParametersError extends BaseError { static error() { return 'invalid argument'; } constructor(requiredParams, actualParams, errMessage) { super( errMessage ? `Parameters were incorrect. You sent ${JSON.stringify(actualParams)}, ${errMessage}` : generateBadParametersMessage(requiredParams, actualParams), ); this.w3cStatus = HTTPStatusCodes.BAD_REQUEST; } } /** * ProxyRequestError is a custom error and will be thrown up on unsuccessful proxy request and * will contain information about the proxy failure. * In case of ProxyRequestError should fetch the actual error by calling `getActualError()` * for proxy failure to generate the client response. */ export class ProxyRequestError extends BaseError { constructor(err, responseError, httpStatus) { let responseErrorObj = util.safeJsonParse(responseError); if (!_.isPlainObject(responseErrorObj)) { responseErrorObj = {}; } let origMessage = _.isString(responseError) ? responseError : ''; if (!_.isEmpty(responseErrorObj)) { if (_.isString(responseErrorObj.value)) { origMessage = responseErrorObj.value; } else if ( _.isPlainObject(responseErrorObj.value) && _.isString(responseErrorObj.value.message) ) { origMessage = responseErrorObj.value.message; } } super(_.isEmpty(err) ? `Proxy request unsuccessful. ${origMessage}` : err); this.w3cStatus = HTTPStatusCodes.BAD_REQUEST; // If the response error is an object and value is an object, it's a W3C error (for JSONWP value is a string) if (_.isPlainObject(responseErrorObj.value) && _.has(responseErrorObj.value, 'error')) { this.w3c = responseErrorObj.value; this.w3cStatus = httpStatus || HTTPStatusCodes.BAD_REQUEST; } else { this.jsonwp = responseErrorObj; } } getActualError() { // If it's MJSONWP error, returns actual error cause for request failure based on `jsonwp.status` if (util.hasValue(this.jsonwp?.status) && util.hasValue(this.jsonwp?.value)) { return errorFromMJSONWPStatusCode(this.jsonwp.status, this.jsonwp.value); } else if (util.hasValue(this.w3c) && _.isNumber(this.w3cStatus) && this.w3cStatus >= 300) { return errorFromW3CJsonCode( this.w3c.error, this.w3c.message || this.message, this.w3c.stacktrace, ); } return new UnknownError(this.message); } } // map of error class name to error class const errors = { NotYetImplementedError, NotImplementedError, BadParametersError, InvalidArgumentError, NoSuchDriverError, NoSuchElementError, UnknownCommandError, StaleElementReferenceError, ElementNotVisibleError, InvalidElementStateError, UnknownError, ElementIsNotSelectableError, ElementClickInterceptedError, ElementNotInteractableError, InsecureCertificateError, JavaScriptError, XPathLookupError, TimeoutError, NoSuchWindowError, NoSuchCookieError, InvalidCookieDomainError, InvalidCoordinatesError, UnableToSetCookieError, UnexpectedAlertOpenError, NoAlertOpenError, ScriptTimeoutError, InvalidElementCoordinatesError, IMENotAvailableError, IMEEngineActivationFailedError, InvalidSelectorError, SessionNotCreatedError, MoveTargetOutOfBoundsError, NoSuchAlertError, NoSuchContextError, InvalidContextError, NoSuchFrameError, UnableToCaptureScreen, UnknownMethodError, UnsupportedOperationError, ProxyRequestError, }; // map of error code to error class const jsonwpErrorCodeMap = {}; for (let ErrorClass of _.values(errors)) { if ('code' in ErrorClass) { jsonwpErrorCodeMap[ErrorClass.code()] = ErrorClass; } } const w3cErrorCodeMap = {}; for (let ErrorClass of _.values(errors)) { if ('error' in ErrorClass) { w3cErrorCodeMap[ErrorClass.error()] = ErrorClass; } } function isUnknownError(err) { return ( !err.constructor.name || !_.values(errors).find(function equalNames(error) { return error.name === err.constructor.name; }) ); } /** * Type guard to check if an Error is of a specific type * @template {Error} T * @param {any} err * @param {import('@appium/types').Class<T>} type * @returns {err is T} */ function isErrorType(err, type) { // `name` property is the constructor name if (type.name === ProtocolError.name) { // `jsonwpCode` is `0` on success return !!err.jsonwpCode; } else if (type.name === ProxyRequestError.name) { // `status` is `0` on success if (err.jsonwp) { return !!err.jsonwp.status; } if (_.isPlainObject(err.w3c)) { return _.isNumber(err.w3cStatus) && err.w3cStatus >= 300; } return false; } return err.constructor.name === type.name; } /** * Retrieve an error derived from MJSONWP status * @param {number} code JSONWP status code * @param {string|Object} value The error message, or an object with a `message` property * @return {ProtocolError} The error that is associated with provided JSONWP status code */ function errorFromMJSONWPStatusCode(code, value = '') { // if `value` is an object, pull message from it, otherwise use the plain // value, or default to an empty string, if null const message = (value || {}).message || value || ''; if (code !== UnknownError.code() && jsonwpErrorCodeMap[code]) { mjsonwpLog.debug(`Matched JSONWP error code ${code} to ${jsonwpErrorCodeMap[code].name}`); return new jsonwpErrorCodeMap[code](message); } mjsonwpLog.debug(`Matched JSONWP error code ${code} to UnknownError`); return new UnknownError(message); } /** * Retrieve an error derived from W3C JSON Code * @param {string} code W3C error string (see https://www.w3.org/TR/webdriver/#handling-errors `JSON Error Code` column) * @param {string} message the error message * @param {?string} stacktrace an optional error stacktrace * @return {ProtocolError} The error that is associated with the W3C error string */ function errorFromW3CJsonCode(code, message, stacktrace = null) { if (code && w3cErrorCodeMap[code.toLowerCase()]) { w3cLog.debug(`Matched W3C error code '${code}' to ${w3cErrorCodeMap[code.toLowerCase()].name}`); const resultError = new w3cErrorCodeMap[code.toLowerCase()](message); resultError.stacktrace = stacktrace; return resultError; } w3cLog.debug(`Matched W3C error code '${code}' to UnknownError`); const resultError = new UnknownError(message); resultError.stacktrace = stacktrace; return resultError; } /** * * @param {any} err * @returns {err is ProtocolError} */ function isProtocolError(err) { return 'w3cStatus' in err; } /** * Convert an Appium error to proper W3C HTTP response * @param {ProtocolError|MJSONWPError} err The error that needs to be translated */ function getResponseForW3CError(err) { let httpStatus; // W3C defined error message (https://www.w3.org/TR/webdriver/#dfn-error-code) let w3cErrorString; if (!isProtocolError(err)) { err = util.hasValue(err.status) ? // If it's a JSONWP error, find corresponding error errorFromMJSONWPStatusCode(err.status, err.value) : new errors.UnknownError(err.message); } if (isErrorType(err, errors.BadParametersError)) { // respond with a 400 if we have bad parameters w3cLog.debug(`Bad parameters: ${err}`); w3cErrorString = BadParametersError.error(); } else { // @ts-expect-error unclear what the problem is here w3cErrorString = err.error; } httpStatus = err.w3cStatus; if (!w3cErrorString) { w3cErrorString = UnknownError.error(); } let httpResBody = { value: { error: w3cErrorString, message: err.message, stacktrace: err.stacktrace || err.stack, }, }; return [httpStatus, httpResBody]; } /** * Convert an Appium error to a proper JSONWP response * @param {ProtocolError} err The error to be converted */ function getResponseForJsonwpError(err) { if (isUnknownError(err)) { err = new errors.UnknownError(err); } // MJSONWP errors are usually 500 status code so set it to that by default let httpStatus = HTTPStatusCodes.INTERNAL_SERVER_ERROR; /** @type {HttpResultBody} */ let httpResBody = { status: err.jsonwpCode, value: { message: err.message, }, }; if (isErrorType(err, errors.BadParametersError)) { // respond with a 400 if we have bad parameters mjsonwpLog.debug(`Bad parameters: ${err}`); httpStatus = HTTPStatusCodes.BAD_REQUEST; httpResBody = err.message; } else if ( isErrorType(err, errors.NotYetImplementedError) || isErrorType(err, errors.NotImplementedError) ) { // respond with a 501 if the method is not implemented httpStatus = HTTPStatusCodes.NOT_IMPLEMENTED; } else if (isErrorType(err, errors.NoSuchDriverError)) { // respond with a 404 if there is no driver for the session httpStatus = HTTPStatusCodes.NOT_FOUND; } return [httpStatus, httpResBody]; } export { errors, isErrorType, isUnknownError, errorFromMJSONWPStatusCode, errorFromW3CJsonCode, getResponseForW3CError, getResponseForJsonwpError, }; /** * @typedef { string | {value: HttpResultBodyValue, status?: number } } HttpResultBody */ /** * @typedef HttpResultBodyValue * @property {string} [message] * @property {string|Error} [error] * @property {string} [stacktrace] */ /** * @typedef MJSONWPError * @property {number} status * @property {string|object} value * @property {string} message */