wallet-core/node_modules/selenium-webdriver/lib/http.js
Florian Dold 82f2b76e25
Reorganize module loading.
We now use webpack instead of SystemJS, effectively bundling modules
into one file (plus commons chunks) for every entry point.  This results
in a much smaller extension size (almost half).  Furthermore we use
yarn/npm even for extension run-time dependencies.  This relieves us
from manually vendoring and building dependencies.  It's also easier to
understand for new developers familiar with node.
2017-04-24 16:14:29 +02:00

574 lines
20 KiB
JavaScript

// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The SFC licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
/**
* @fileoverview Defines an environment agnostic {@linkplain cmd.Executor
* command executor} that communicates with a remote end using JSON over HTTP.
*
* Clients should implement the {@link Client} interface, which is used by
* the {@link Executor} to send commands to the remote end.
*/
'use strict';
const cmd = require('./command');
const error = require('./error');
const logging = require('./logging');
const promise = require('./promise');
const Session = require('./session').Session;
const WebElement = require('./webdriver').WebElement;
const {getAttribute, isDisplayed} = (function() {
try {
return {
getAttribute: require('./atoms/getAttribute.js'),
isDisplayed: require('./atoms/is-displayed.js')
};
} catch (ex) {
throw Error(
'Failed to import atoms modules. If running in devmode, you need to run'
+ ' `./go node:atoms` from the project root: ' + ex);
}
})();
/**
* Converts a headers map to a HTTP header block string.
* @param {!Map<string, string>} headers The map to convert.
* @return {string} The headers as a string.
*/
function headersToString(headers) {
let ret = [];
headers.forEach(function(value, name) {
ret.push(`${name.toLowerCase()}: ${value}`);
});
return ret.join('\n');
}
/**
* Represents a HTTP request message. This class is a "partial" request and only
* defines the path on the server to send a request to. It is each client's
* responsibility to build the full URL for the final request.
* @final
*/
class Request {
/**
* @param {string} method The HTTP method to use for the request.
* @param {string} path The path on the server to send the request to.
* @param {Object=} opt_data This request's non-serialized JSON payload data.
*/
constructor(method, path, opt_data) {
this.method = /** string */method;
this.path = /** string */path;
this.data = /** Object */opt_data;
this.headers = /** !Map<string, string> */new Map(
[['Accept', 'application/json; charset=utf-8']]);
}
/** @override */
toString() {
let ret = `${this.method} ${this.path} HTTP/1.1\n`;
ret += headersToString(this.headers) + '\n\n';
if (this.data) {
ret += JSON.stringify(this.data);
}
return ret;
}
}
/**
* Represents a HTTP response message.
* @final
*/
class Response {
/**
* @param {number} status The response code.
* @param {!Object<string>} headers The response headers. All header names
* will be converted to lowercase strings for consistent lookups.
* @param {string} body The response body.
*/
constructor(status, headers, body) {
this.status = /** number */status;
this.body = /** string */body;
this.headers = /** !Map<string, string>*/new Map;
for (let header in headers) {
this.headers.set(header.toLowerCase(), headers[header]);
}
}
/** @override */
toString() {
let ret = `HTTP/1.1 ${this.status}\n${headersToString(this.headers)}\n\n`;
if (this.body) {
ret += this.body;
}
return ret;
}
}
const DEV_ROOT = '../../../../buck-out/gen/javascript/';
/** @enum {!Function} */
const Atom = {
GET_ATTRIBUTE: getAttribute,
IS_DISPLAYED: isDisplayed
};
const LOG = logging.getLogger('webdriver.http');
function post(path) { return resource('POST', path); }
function del(path) { return resource('DELETE', path); }
function get(path) { return resource('GET', path); }
function resource(method, path) { return {method: method, path: path}; }
/** @typedef {{method: string, path: string}} */
var CommandSpec;
/** @typedef {function(!cmd.Command): !Promise<!cmd.Command>} */
var CommandTransformer;
class InternalTypeError extends TypeError {}
/**
* @param {!cmd.Command} command The initial command.
* @param {Atom} atom The name of the atom to execute.
* @return {!Promise<!cmd.Command>} The transformed command to execute.
*/
function toExecuteAtomCommand(command, atom, ...params) {
return new Promise((resolve, reject) => {
if (typeof atom !== 'function') {
reject(new InternalTypeError('atom is not a function: ' + typeof atom));
return;
}
let newCmd = new cmd.Command(cmd.Name.EXECUTE_SCRIPT)
.setParameter('sessionId', command.getParameter('sessionId'))
.setParameter('script', `return (${atom}).apply(null, arguments)`)
.setParameter('args', params.map(param => command.getParameter(param)));
resolve(newCmd);
});
}
/** @const {!Map<string, CommandSpec>} */
const COMMAND_MAP = new Map([
[cmd.Name.GET_SERVER_STATUS, get('/status')],
[cmd.Name.NEW_SESSION, post('/session')],
[cmd.Name.GET_SESSIONS, get('/sessions')],
[cmd.Name.DESCRIBE_SESSION, get('/session/:sessionId')],
[cmd.Name.QUIT, del('/session/:sessionId')],
[cmd.Name.CLOSE, del('/session/:sessionId/window')],
[cmd.Name.GET_CURRENT_WINDOW_HANDLE, get('/session/:sessionId/window_handle')],
[cmd.Name.GET_WINDOW_HANDLES, get('/session/:sessionId/window_handles')],
[cmd.Name.GET_CURRENT_URL, get('/session/:sessionId/url')],
[cmd.Name.GET, post('/session/:sessionId/url')],
[cmd.Name.GO_BACK, post('/session/:sessionId/back')],
[cmd.Name.GO_FORWARD, post('/session/:sessionId/forward')],
[cmd.Name.REFRESH, post('/session/:sessionId/refresh')],
[cmd.Name.ADD_COOKIE, post('/session/:sessionId/cookie')],
[cmd.Name.GET_ALL_COOKIES, get('/session/:sessionId/cookie')],
[cmd.Name.DELETE_ALL_COOKIES, del('/session/:sessionId/cookie')],
[cmd.Name.DELETE_COOKIE, del('/session/:sessionId/cookie/:name')],
[cmd.Name.FIND_ELEMENT, post('/session/:sessionId/element')],
[cmd.Name.FIND_ELEMENTS, post('/session/:sessionId/elements')],
[cmd.Name.GET_ACTIVE_ELEMENT, post('/session/:sessionId/element/active')],
[cmd.Name.FIND_CHILD_ELEMENT, post('/session/:sessionId/element/:id/element')],
[cmd.Name.FIND_CHILD_ELEMENTS, post('/session/:sessionId/element/:id/elements')],
[cmd.Name.CLEAR_ELEMENT, post('/session/:sessionId/element/:id/clear')],
[cmd.Name.CLICK_ELEMENT, post('/session/:sessionId/element/:id/click')],
[cmd.Name.SEND_KEYS_TO_ELEMENT, post('/session/:sessionId/element/:id/value')],
[cmd.Name.SUBMIT_ELEMENT, post('/session/:sessionId/element/:id/submit')],
[cmd.Name.GET_ELEMENT_TEXT, get('/session/:sessionId/element/:id/text')],
[cmd.Name.GET_ELEMENT_TAG_NAME, get('/session/:sessionId/element/:id/name')],
[cmd.Name.IS_ELEMENT_SELECTED, get('/session/:sessionId/element/:id/selected')],
[cmd.Name.IS_ELEMENT_ENABLED, get('/session/:sessionId/element/:id/enabled')],
[cmd.Name.IS_ELEMENT_DISPLAYED, get('/session/:sessionId/element/:id/displayed')],
[cmd.Name.GET_ELEMENT_LOCATION, get('/session/:sessionId/element/:id/location')],
[cmd.Name.GET_ELEMENT_SIZE, get('/session/:sessionId/element/:id/size')],
[cmd.Name.GET_ELEMENT_ATTRIBUTE, get('/session/:sessionId/element/:id/attribute/:name')],
[cmd.Name.GET_ELEMENT_VALUE_OF_CSS_PROPERTY, get('/session/:sessionId/element/:id/css/:propertyName')],
[cmd.Name.ELEMENT_EQUALS, get('/session/:sessionId/element/:id/equals/:other')],
[cmd.Name.TAKE_ELEMENT_SCREENSHOT, get('/session/:sessionId/element/:id/screenshot')],
[cmd.Name.SWITCH_TO_WINDOW, post('/session/:sessionId/window')],
[cmd.Name.MAXIMIZE_WINDOW, post('/session/:sessionId/window/current/maximize')],
[cmd.Name.GET_WINDOW_POSITION, get('/session/:sessionId/window/current/position')],
[cmd.Name.SET_WINDOW_POSITION, post('/session/:sessionId/window/current/position')],
[cmd.Name.GET_WINDOW_SIZE, get('/session/:sessionId/window/current/size')],
[cmd.Name.SET_WINDOW_SIZE, post('/session/:sessionId/window/current/size')],
[cmd.Name.SWITCH_TO_FRAME, post('/session/:sessionId/frame')],
[cmd.Name.GET_PAGE_SOURCE, get('/session/:sessionId/source')],
[cmd.Name.GET_TITLE, get('/session/:sessionId/title')],
[cmd.Name.EXECUTE_SCRIPT, post('/session/:sessionId/execute')],
[cmd.Name.EXECUTE_ASYNC_SCRIPT, post('/session/:sessionId/execute_async')],
[cmd.Name.SCREENSHOT, get('/session/:sessionId/screenshot')],
[cmd.Name.SET_TIMEOUT, post('/session/:sessionId/timeouts')],
[cmd.Name.MOVE_TO, post('/session/:sessionId/moveto')],
[cmd.Name.CLICK, post('/session/:sessionId/click')],
[cmd.Name.DOUBLE_CLICK, post('/session/:sessionId/doubleclick')],
[cmd.Name.MOUSE_DOWN, post('/session/:sessionId/buttondown')],
[cmd.Name.MOUSE_UP, post('/session/:sessionId/buttonup')],
[cmd.Name.MOVE_TO, post('/session/:sessionId/moveto')],
[cmd.Name.SEND_KEYS_TO_ACTIVE_ELEMENT, post('/session/:sessionId/keys')],
[cmd.Name.TOUCH_SINGLE_TAP, post('/session/:sessionId/touch/click')],
[cmd.Name.TOUCH_DOUBLE_TAP, post('/session/:sessionId/touch/doubleclick')],
[cmd.Name.TOUCH_DOWN, post('/session/:sessionId/touch/down')],
[cmd.Name.TOUCH_UP, post('/session/:sessionId/touch/up')],
[cmd.Name.TOUCH_MOVE, post('/session/:sessionId/touch/move')],
[cmd.Name.TOUCH_SCROLL, post('/session/:sessionId/touch/scroll')],
[cmd.Name.TOUCH_LONG_PRESS, post('/session/:sessionId/touch/longclick')],
[cmd.Name.TOUCH_FLICK, post('/session/:sessionId/touch/flick')],
[cmd.Name.ACCEPT_ALERT, post('/session/:sessionId/accept_alert')],
[cmd.Name.DISMISS_ALERT, post('/session/:sessionId/dismiss_alert')],
[cmd.Name.GET_ALERT_TEXT, get('/session/:sessionId/alert_text')],
[cmd.Name.SET_ALERT_TEXT, post('/session/:sessionId/alert_text')],
[cmd.Name.SET_ALERT_CREDENTIALS, post('/session/:sessionId/alert/credentials')],
[cmd.Name.GET_LOG, post('/session/:sessionId/log')],
[cmd.Name.GET_AVAILABLE_LOG_TYPES, get('/session/:sessionId/log/types')],
[cmd.Name.GET_SESSION_LOGS, post('/logs')],
[cmd.Name.UPLOAD_FILE, post('/session/:sessionId/file')],
]);
/** @const {!Map<string, (CommandSpec|CommandTransformer)>} */
const W3C_COMMAND_MAP = new Map([
[cmd.Name.GET_ACTIVE_ELEMENT, get('/session/:sessionId/element/active')],
[cmd.Name.GET_ELEMENT_ATTRIBUTE, (cmd) => {
return toExecuteAtomCommand(cmd, Atom.GET_ATTRIBUTE, 'id', 'name');
}],
[cmd.Name.GET_ELEMENT_LOCATION, get('/session/:sessionId/element/:id/rect')],
[cmd.Name.GET_ELEMENT_SIZE, get('/session/:sessionId/element/:id/rect')],
[cmd.Name.IS_ELEMENT_DISPLAYED, (cmd) => {
return toExecuteAtomCommand(cmd, Atom.IS_DISPLAYED, 'id');
}],
[cmd.Name.MAXIMIZE_WINDOW, post('/session/:sessionId/window/maximize')],
[cmd.Name.GET_WINDOW_POSITION, get('/session/:sessionId/window/position')],
[cmd.Name.SET_WINDOW_POSITION, post('/session/:sessionId/window/position')],
[cmd.Name.GET_WINDOW_SIZE, get('/session/:sessionId/window/size')],
[cmd.Name.SET_WINDOW_SIZE, post('/session/:sessionId/window/size')],
]);
/**
* Handles sending HTTP messages to a remote end.
*
* @interface
*/
class Client {
/**
* Sends a request to the server. The client will automatically follow any
* redirects returned by the server, fulfilling the returned promise with the
* final response.
*
* @param {!Request} httpRequest The request to send.
* @return {!Promise<Response>} A promise that will be fulfilled with the
* server's response.
*/
send(httpRequest) {}
}
const CLIENTS =
/** !WeakMap<!Executor, !(Client|IThenable<!Client>)> */new WeakMap;
/**
* Sends a request using the given executor.
* @param {!Executor} executor
* @param {!Request} request
* @return {!Promise<Response>}
*/
function doSend(executor, request) {
const client = CLIENTS.get(executor);
if (promise.isPromise(client)) {
return client.then(client => {
CLIENTS.set(executor, client);
return client.send(request);
});
} else {
return client.send(request);
}
}
/**
* @param {Map<string, CommandSpec>} customCommands
* A map of custom command definitions.
* @param {boolean} w3c Whether to use W3C command mappings.
* @param {!cmd.Command} command The command to resolve.
* @return {!Promise<!Request>} A promise that will resolve with the
* command to execute.
*/
function buildRequest(customCommands, w3c, command) {
LOG.finest(() => `Translating command: ${command.getName()}`);
let spec = customCommands && customCommands.get(command.getName());
if (spec) {
return toHttpRequest(spec);
}
if (w3c) {
spec = W3C_COMMAND_MAP.get(command.getName());
if (typeof spec === 'function') {
LOG.finest(() => `Transforming command for W3C: ${command.getName()}`);
return spec(command)
.then(newCommand => buildRequest(customCommands, w3c, newCommand));
} else if (spec) {
return toHttpRequest(spec);
}
}
spec = COMMAND_MAP.get(command.getName());
if (spec) {
return toHttpRequest(spec);
}
return Promise.reject(
new error.UnknownCommandError(
'Unrecognized command: ' + command.getName()));
/**
* @param {CommandSpec} resource
* @return {!Promise<!Request>}
*/
function toHttpRequest(resource) {
LOG.finest(() => `Building HTTP request: ${JSON.stringify(resource)}`);
let parameters = command.getParameters();
let path = buildPath(resource.path, parameters);
return Promise.resolve(new Request(resource.method, path, parameters));
}
}
/**
* A command executor that communicates with the server using JSON over HTTP.
*
* By default, each instance of this class will use the legacy wire protocol
* from [Selenium project][json]. The executor will automatically switch to the
* [W3C wire protocol][w3c] if the remote end returns a compliant response to
* a new session command.
*
* [json]: https://github.com/SeleniumHQ/selenium/wiki/JsonWireProtocol
* [w3c]: https://w3c.github.io/webdriver/webdriver-spec.html
*
* @implements {cmd.Executor}
*/
class Executor {
/**
* @param {!(Client|IThenable<!Client>)} client The client to use for sending
* requests to the server, or a promise-like object that will resolve to
* to the client.
*/
constructor(client) {
CLIENTS.set(this, client);
/**
* Whether this executor should use the W3C wire protocol. The executor
* will automatically switch if the remote end sends a compliant response
* to a new session command, however, this property may be directly set to
* `true` to force the executor into W3C mode.
* @type {boolean}
*/
this.w3c = false;
/** @private {Map<string, CommandSpec>} */
this.customCommands_ = null;
/** @private {!logging.Logger} */
this.log_ = logging.getLogger('webdriver.http.Executor');
}
/**
* Defines a new command for use with this executor. When a command is sent,
* the {@code path} will be preprocessed using the command's parameters; any
* path segments prefixed with ":" will be replaced by the parameter of the
* same name. For example, given "/person/:name" and the parameters
* "{name: 'Bob'}", the final command path will be "/person/Bob".
*
* @param {string} name The command name.
* @param {string} method The HTTP method to use when sending this command.
* @param {string} path The path to send the command to, relative to
* the WebDriver server's command root and of the form
* "/path/:variable/segment".
*/
defineCommand(name, method, path) {
if (!this.customCommands_) {
this.customCommands_ = new Map;
}
this.customCommands_.set(name, {method, path});
}
/** @override */
execute(command) {
let request = buildRequest(this.customCommands_, this.w3c, command);
return request.then(request => {
this.log_.finer(() => `>>> ${request.method} ${request.path}`);
return doSend(this, request).then(response => {
this.log_.finer(() => `>>>\n${request}\n<<<\n${response}`);
let parsed =
parseHttpResponse(
command, /** @type {!Response} */ (response), this.w3c);
if (command.getName() === cmd.Name.NEW_SESSION
|| command.getName() === cmd.Name.DESCRIBE_SESSION) {
if (!parsed || !parsed['sessionId']) {
throw new error.WebDriverError(
'Unable to parse new session response: ' + response.body);
}
// The remote end is a W3C compliant server if there is no `status`
// field in the response. This is not applicable for the DESCRIBE_SESSION
// command, which is not defined in the W3C spec.
if (command.getName() === cmd.Name.NEW_SESSION) {
this.w3c = this.w3c || !('status' in parsed);
}
return new Session(parsed['sessionId'], parsed['value']);
}
if (parsed
&& typeof parsed === 'object'
&& 'value' in parsed) {
let value = parsed['value'];
return typeof value === 'undefined' ? null : value;
}
return parsed;
});
});
}
}
/**
* @param {string} str .
* @return {?} .
*/
function tryParse(str) {
try {
return JSON.parse(str);
} catch (ignored) {
// Do nothing.
}
}
/**
* Callback used to parse {@link Response} objects from a
* {@link HttpClient}.
*
* @param {!cmd.Command} command The command the response is for.
* @param {!Response} httpResponse The HTTP response to parse.
* @param {boolean} w3c Whether the response should be processed using the
* W3C wire protocol.
* @return {?} The parsed response.
* @throws {WebDriverError} If the HTTP response is an error.
*/
function parseHttpResponse(command, httpResponse, w3c) {
let parsed = tryParse(httpResponse.body);
if (parsed !== undefined) {
if (httpResponse.status < 200) {
// This should never happen, but throw the raw response so
// users report it.
throw new error.WebDriverError(
`Unexpected HTTP response:\n${httpResponse}`);
}
if (w3c) {
if (httpResponse.status > 399) {
error.throwDecodedError(parsed);
}
return parsed;
}
// If this is a new session command, we need to check for a W3C compliant
// error object. This is necessary since a successful new session command
// is what puts the executor into W3C mode.
if (httpResponse.status > 399
&& (command.getName() == cmd.Name.NEW_SESSION
|| command.getName() === cmd.Name.DESCRIBE_SESSION)
&& error.isErrorResponse(parsed)) {
error.throwDecodedError(parsed);
}
error.checkLegacyResponse(parsed);
return parsed;
}
let value = httpResponse.body.replace(/\r\n/g, '\n');
// 404 represents an unknown command; anything else > 399 is a generic unknown
// error.
if (httpResponse.status == 404) {
throw new error.UnsupportedOperationError(value);
} else if (httpResponse.status >= 400) {
throw new error.WebDriverError(value);
}
return value || null;
}
/**
* Builds a fully qualified path using the given set of command parameters. Each
* path segment prefixed with ':' will be replaced by the value of the
* corresponding parameter. All parameters spliced into the path will be
* removed from the parameter map.
* @param {string} path The original resource path.
* @param {!Object<*>} parameters The parameters object to splice into the path.
* @return {string} The modified path.
*/
function buildPath(path, parameters) {
let pathParameters = path.match(/\/:(\w+)\b/g);
if (pathParameters) {
for (let i = 0; i < pathParameters.length; ++i) {
let key = pathParameters[i].substring(2); // Trim the /:
if (key in parameters) {
let value = parameters[key];
if (WebElement.isId(value)) {
// When inserting a WebElement into the URL, only use its ID value,
// not the full JSON.
value = WebElement.extractId(value);
}
path = path.replace(pathParameters[i], '/' + value);
delete parameters[key];
} else {
throw new error.InvalidArgumentError(
'Missing required parameter: ' + key);
}
}
}
return path;
}
// PUBLIC API
exports.Executor = Executor;
exports.Client = Client;
exports.Request = Request;
exports.Response = Response;
exports.buildPath = buildPath; // Exported for testing.