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WebDriverService.cpp
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/*
* Copyright (C) 2017 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "WebDriverService.h"
#include "Capabilities.h"
#include "CommandResult.h"
#include "SessionHost.h"
#include <wtf/RunLoop.h>
#include <wtf/text/StringToIntegerConversion.h>
#include <wtf/text/WTFString.h>
namespace WebDriver {
// https://w3c.github.io/webdriver/webdriver-spec.html#dfn-maximum-safe-integer
static const double maxSafeInteger = 9007199254740991.0; // 2 ^ 53 - 1
WebDriverService::WebDriverService()
: m_server(*this)
{
}
static void printUsageStatement(const char* programName)
{
printf("Usage: %s options\n", programName);
printf(" -h, --help Prints this help message\n");
printf(" -p <port>, --port=<port> Port number the driver will use\n");
printf(" --host=<host> Host IP the driver will use, or either 'local' or 'all' (default: 'local')\n");
#if USE(INSPECTOR_SOCKET_SERVER)
printf(" -t <ip:port> --target=<ip:port> [WinCairo] Target IP and port\n");
#endif
}
int WebDriverService::run(int argc, char** argv)
{
String portString;
std::optional<String> host;
#if USE(INSPECTOR_SOCKET_SERVER)
String targetString;
if (const char* targetEnvVar = getenv("WEBDRIVER_TARGET_ADDR"))
targetString = targetEnvVar;
#endif
for (int i = 1 ; i < argc; ++i) {
const char* arg = argv[i];
if (!strcmp(arg, "-h") || !strcmp(arg, "--help")) {
printUsageStatement(argv[0]);
return EXIT_SUCCESS;
}
if (!strcmp(arg, "-p") && portString.isNull()) {
if (++i == argc) {
printUsageStatement(argv[0]);
return EXIT_FAILURE;
}
portString = argv[i];
continue;
}
static const unsigned portStrLength = strlen("--port=");
if (!strncmp(arg, "--port=", portStrLength) && portString.isNull()) {
portString = String(arg + portStrLength);
continue;
}
static const unsigned hostStrLength = strlen("--host=");
if (!strncmp(arg, "--host=", hostStrLength) && !host) {
host = String(arg + hostStrLength);
continue;
}
#if USE(INSPECTOR_SOCKET_SERVER)
if (!strcmp(arg, "-t") && targetString.isNull()) {
if (++i == argc) {
printUsageStatement(argv[0]);
return EXIT_FAILURE;
}
targetString = argv[i];
continue;
}
static const unsigned targetStrLength = strlen("--target=");
if (!strncmp(arg, "--target=", targetStrLength) && targetString.isNull()) {
targetString = String(arg + targetStrLength);
continue;
}
#endif
}
if (portString.isNull()) {
printUsageStatement(argv[0]);
return EXIT_FAILURE;
}
#if USE(INSPECTOR_SOCKET_SERVER)
if (!targetString.isEmpty()) {
auto position = targetString.reverseFind(":"_s);
if (position != notFound) {
m_targetAddress = targetString.left(position);
m_targetPort = parseIntegerAllowingTrailingJunk<uint16_t>(StringView { targetString }.substring(position + 1)).value_or(0);
}
}
#endif
auto port = parseInteger<uint16_t>(portString);
if (!port) {
fprintf(stderr, "Invalid port %s provided\n", portString.utf8().data());
return EXIT_FAILURE;
}
WTF::initializeMainThread();
if (!m_server.listen(host, *port))
return EXIT_FAILURE;
RunLoop::run();
m_server.disconnect();
return EXIT_SUCCESS;
}
const WebDriverService::Command WebDriverService::s_commands[] = {
{ HTTPMethod::Post, "/session", &WebDriverService::newSession },
{ HTTPMethod::Delete, "/session/$sessionId", &WebDriverService::deleteSession },
{ HTTPMethod::Get, "/status", &WebDriverService::status },
{ HTTPMethod::Get, "/session/$sessionId/timeouts", &WebDriverService::getTimeouts },
{ HTTPMethod::Post, "/session/$sessionId/timeouts", &WebDriverService::setTimeouts },
{ HTTPMethod::Post, "/session/$sessionId/url", &WebDriverService::go },
{ HTTPMethod::Get, "/session/$sessionId/url", &WebDriverService::getCurrentURL },
{ HTTPMethod::Post, "/session/$sessionId/back", &WebDriverService::back },
{ HTTPMethod::Post, "/session/$sessionId/forward", &WebDriverService::forward },
{ HTTPMethod::Post, "/session/$sessionId/refresh", &WebDriverService::refresh },
{ HTTPMethod::Get, "/session/$sessionId/title", &WebDriverService::getTitle },
{ HTTPMethod::Get, "/session/$sessionId/window", &WebDriverService::getWindowHandle },
{ HTTPMethod::Delete, "/session/$sessionId/window", &WebDriverService::closeWindow },
{ HTTPMethod::Post, "/session/$sessionId/window", &WebDriverService::switchToWindow },
{ HTTPMethod::Get, "/session/$sessionId/window/handles", &WebDriverService::getWindowHandles },
{ HTTPMethod::Post, "/session/$sessionId/window/new", &WebDriverService::newWindow },
{ HTTPMethod::Post, "/session/$sessionId/frame", &WebDriverService::switchToFrame },
{ HTTPMethod::Post, "/session/$sessionId/frame/parent", &WebDriverService::switchToParentFrame },
{ HTTPMethod::Get, "/session/$sessionId/window/rect", &WebDriverService::getWindowRect },
{ HTTPMethod::Post, "/session/$sessionId/window/rect", &WebDriverService::setWindowRect },
{ HTTPMethod::Post, "/session/$sessionId/window/maximize", &WebDriverService::maximizeWindow },
{ HTTPMethod::Post, "/session/$sessionId/window/minimize", &WebDriverService::minimizeWindow },
{ HTTPMethod::Post, "/session/$sessionId/window/fullscreen", &WebDriverService::fullscreenWindow },
{ HTTPMethod::Post, "/session/$sessionId/element", &WebDriverService::findElement },
{ HTTPMethod::Post, "/session/$sessionId/elements", &WebDriverService::findElements },
{ HTTPMethod::Post, "/session/$sessionId/element/$elementId/element", &WebDriverService::findElementFromElement },
{ HTTPMethod::Post, "/session/$sessionId/element/$elementId/elements", &WebDriverService::findElementsFromElement },
{ HTTPMethod::Get, "/session/$sessionId/element/active", &WebDriverService::getActiveElement },
{ HTTPMethod::Get, "/session/$sessionId/element/$elementId/selected", &WebDriverService::isElementSelected },
{ HTTPMethod::Get, "/session/$sessionId/element/$elementId/attribute/$name", &WebDriverService::getElementAttribute },
{ HTTPMethod::Get, "/session/$sessionId/element/$elementId/property/$name", &WebDriverService::getElementProperty },
{ HTTPMethod::Get, "/session/$sessionId/element/$elementId/css/$name", &WebDriverService::getElementCSSValue },
{ HTTPMethod::Get, "/session/$sessionId/element/$elementId/text", &WebDriverService::getElementText },
{ HTTPMethod::Get, "/session/$sessionId/element/$elementId/name", &WebDriverService::getElementTagName },
{ HTTPMethod::Get, "/session/$sessionId/element/$elementId/rect", &WebDriverService::getElementRect },
{ HTTPMethod::Get, "/session/$sessionId/element/$elementId/enabled", &WebDriverService::isElementEnabled },
{ HTTPMethod::Post, "/session/$sessionId/element/$elementId/click", &WebDriverService::elementClick },
{ HTTPMethod::Post, "/session/$sessionId/element/$elementId/clear", &WebDriverService::elementClear },
{ HTTPMethod::Post, "/session/$sessionId/element/$elementId/value", &WebDriverService::elementSendKeys },
{ HTTPMethod::Get, "/session/$sessionId/source", &WebDriverService::getPageSource },
{ HTTPMethod::Post, "/session/$sessionId/execute/sync", &WebDriverService::executeScript },
{ HTTPMethod::Post, "/session/$sessionId/execute/async", &WebDriverService::executeAsyncScript },
{ HTTPMethod::Get, "/session/$sessionId/cookie", &WebDriverService::getAllCookies },
{ HTTPMethod::Get, "/session/$sessionId/cookie/$name", &WebDriverService::getNamedCookie },
{ HTTPMethod::Post, "/session/$sessionId/cookie", &WebDriverService::addCookie },
{ HTTPMethod::Delete, "/session/$sessionId/cookie/$name", &WebDriverService::deleteCookie },
{ HTTPMethod::Delete, "/session/$sessionId/cookie", &WebDriverService::deleteAllCookies },
{ HTTPMethod::Post, "/session/$sessionId/actions", &WebDriverService::performActions },
{ HTTPMethod::Delete, "/session/$sessionId/actions", &WebDriverService::releaseActions },
{ HTTPMethod::Post, "/session/$sessionId/alert/dismiss", &WebDriverService::dismissAlert },
{ HTTPMethod::Post, "/session/$sessionId/alert/accept", &WebDriverService::acceptAlert },
{ HTTPMethod::Get, "/session/$sessionId/alert/text", &WebDriverService::getAlertText },
{ HTTPMethod::Post, "/session/$sessionId/alert/text", &WebDriverService::sendAlertText },
{ HTTPMethod::Get, "/session/$sessionId/screenshot", &WebDriverService::takeScreenshot },
{ HTTPMethod::Get, "/session/$sessionId/element/$elementId/screenshot", &WebDriverService::takeElementScreenshot },
{ HTTPMethod::Get, "/session/$sessionId/element/$elementId/displayed", &WebDriverService::isElementDisplayed },
};
std::optional<WebDriverService::HTTPMethod> WebDriverService::toCommandHTTPMethod(const String& method)
{
auto lowerCaseMethod = method.convertToASCIILowercase();
if (lowerCaseMethod == "get")
return WebDriverService::HTTPMethod::Get;
if (lowerCaseMethod == "post" || lowerCaseMethod == "put")
return WebDriverService::HTTPMethod::Post;
if (lowerCaseMethod == "delete")
return WebDriverService::HTTPMethod::Delete;
return std::nullopt;
}
bool WebDriverService::findCommand(HTTPMethod method, const String& path, CommandHandler* handler, HashMap<String, String>& parameters)
{
size_t length = WTF_ARRAY_LENGTH(s_commands);
for (size_t i = 0; i < length; ++i) {
if (s_commands[i].method != method)
continue;
Vector<String> pathTokens = path.split('/');
Vector<String> commandTokens = String::fromUTF8(s_commands[i].uriTemplate).split('/');
if (pathTokens.size() != commandTokens.size())
continue;
bool allMatched = true;
for (size_t j = 0; j < pathTokens.size() && allMatched; ++j) {
if (commandTokens[j][0] == '$')
parameters.set(commandTokens[j].substring(1), pathTokens[j]);
else if (commandTokens[j] != pathTokens[j])
allMatched = false;
}
if (allMatched) {
*handler = s_commands[i].handler;
return true;
}
parameters.clear();
}
return false;
}
void WebDriverService::handleRequest(HTTPRequestHandler::Request&& request, Function<void (HTTPRequestHandler::Response&&)>&& replyHandler)
{
auto method = toCommandHTTPMethod(request.method);
if (!method) {
sendResponse(WTFMove(replyHandler), CommandResult::fail(CommandResult::ErrorCode::UnknownCommand, String("Unknown method: " + request.method)));
return;
}
CommandHandler handler;
HashMap<String, String> parameters;
if (!findCommand(method.value(), request.path, &handler, parameters)) {
sendResponse(WTFMove(replyHandler), CommandResult::fail(CommandResult::ErrorCode::UnknownCommand, String("Unknown command: " + request.path)));
return;
}
RefPtr<JSON::Object> parametersObject;
if (method.value() == HTTPMethod::Post) {
auto messageValue = JSON::Value::parseJSON(String::fromUTF8(request.data, request.dataLength));
if (!messageValue) {
sendResponse(WTFMove(replyHandler), CommandResult::fail(CommandResult::ErrorCode::InvalidArgument));
return;
}
parametersObject = messageValue->asObject();
if (!parametersObject) {
sendResponse(WTFMove(replyHandler), CommandResult::fail(CommandResult::ErrorCode::InvalidArgument));
return;
}
} else
parametersObject = JSON::Object::create();
for (const auto& parameter : parameters)
parametersObject->setString(parameter.key, parameter.value);
((*this).*handler)(WTFMove(parametersObject), [this, replyHandler = WTFMove(replyHandler)](CommandResult&& result) mutable {
sendResponse(WTFMove(replyHandler), WTFMove(result));
});
}
void WebDriverService::sendResponse(Function<void (HTTPRequestHandler::Response&&)>&& replyHandler, CommandResult&& result) const
{
// §6.3 Processing Model.
// https://w3c.github.io/webdriver/webdriver-spec.html#processing-model
RefPtr<JSON::Value> resultValue;
if (result.isError()) {
// When required to send an error.
// https://w3c.github.io/webdriver/webdriver-spec.html#dfn-send-an-error
// Let body be a new JSON Object initialised with the following properties: "error", "message", "stacktrace".
auto errorObject = JSON::Object::create();
errorObject->setString("error"_s, result.errorString());
errorObject->setString("message"_s, result.errorMessage().value_or(emptyString()));
errorObject->setString("stacktrace"_s, emptyString());
// If the error data dictionary contains any entries, set the "data" field on body to a new JSON Object populated with the dictionary.
if (auto& additionalData = result.additionalErrorData())
errorObject->setObject("data"_s, *additionalData);
// Send a response with status and body as arguments.
resultValue = WTFMove(errorObject);
} else if (auto value = result.result())
resultValue = WTFMove(value);
else
resultValue = JSON::Value::null();
// When required to send a response.
// https://w3c.github.io/webdriver/webdriver-spec.html#dfn-send-a-response
auto responseObject = JSON::Object::create();
responseObject->setValue("value"_s, resultValue.releaseNonNull());
replyHandler({ result.httpStatusCode(), responseObject->toJSONString().utf8(), "application/json; charset=utf-8"_s });
}
static std::optional<double> valueAsNumberInRange(const JSON::Value& value, double minAllowed = 0, double maxAllowed = std::numeric_limits<int>::max())
{
auto number = value.asDouble();
if (!number)
return std::nullopt;
if (std::isnan(*number) || std::isinf(*number))
return std::nullopt;
if (*number < minAllowed || *number > maxAllowed)
return std::nullopt;
return *number;
}
static std::optional<uint64_t> unsignedValue(JSON::Value& value)
{
auto number = valueAsNumberInRange(value, 0, maxSafeInteger);
if (!number)
return std::nullopt;
auto intValue = static_cast<uint64_t>(number.value());
// If the contained value is a double, bail in case it doesn't match the integer
// value, i.e. if the double value was not originally in integer form.
// https://w3c.github.io/webdriver/webdriver-spec.html#dfn-integer
if (number.value() != intValue)
return std::nullopt;
return intValue;
}
enum class IgnoreUnknownTimeout { No, Yes };
static std::optional<Timeouts> deserializeTimeouts(JSON::Object& timeoutsObject, IgnoreUnknownTimeout ignoreUnknownTimeout)
{
// §8.5 Set Timeouts.
// https://w3c.github.io/webdriver/webdriver-spec.html#dfn-deserialize-as-a-timeout
Timeouts timeouts;
auto end = timeoutsObject.end();
for (auto it = timeoutsObject.begin(); it != end; ++it) {
if (it->key == "sessionId")
continue;
if (it->key == "script" && it->value->isNull()) {
timeouts.script = std::numeric_limits<double>::infinity();
continue;
}
// If value is not an integer, or it is less than 0 or greater than the maximum safe integer, return error with error code invalid argument.
auto timeoutMS = unsignedValue(it->value);
if (!timeoutMS)
return std::nullopt;
if (it->key == "script")
timeouts.script = timeoutMS.value();
else if (it->key == "pageLoad")
timeouts.pageLoad = timeoutMS.value();
else if (it->key == "implicit")
timeouts.implicit = timeoutMS.value();
else if (ignoreUnknownTimeout == IgnoreUnknownTimeout::No)
return std::nullopt;
}
return timeouts;
}
static std::optional<Proxy> deserializeProxy(JSON::Object& proxyObject)
{
// §7.1 Proxy.
// https://w3c.github.io/webdriver/#proxy
Proxy proxy;
proxy.type = proxyObject.getString("proxyType"_s);
if (!proxy.type)
return std::nullopt;
if (proxy.type == "direct" || proxy.type == "autodetect" || proxy.type == "system")
return proxy;
if (proxy.type == "pac") {
proxy.autoconfigURL = proxyObject.getString("proxyAutoconfigUrl"_s);
if (!proxy.autoconfigURL)
return std::nullopt;
return proxy;
}
if (proxy.type == "manual") {
if (auto value = proxyObject.getValue("ftpProxy"_s)) {
auto ftpProxy = value->asString();
if (!ftpProxy)
return std::nullopt;
proxy.ftpURL = URL({ }, makeString("ftp://", ftpProxy));
if (!proxy.ftpURL->isValid())
return std::nullopt;
}
if (auto value = proxyObject.getValue("httpProxy"_s)) {
auto httpProxy = value->asString();
if (!httpProxy)
return std::nullopt;
proxy.httpURL = URL({ }, makeString("http://", httpProxy));
if (!proxy.httpURL->isValid())
return std::nullopt;
}
if (auto value = proxyObject.getValue("sslProxy"_s)) {
auto sslProxy = value->asString();
if (!sslProxy)
return std::nullopt;
proxy.httpsURL = URL({ }, makeString("https://", sslProxy));
if (!proxy.httpsURL->isValid())
return std::nullopt;
}
if (auto value = proxyObject.getValue("socksProxy")) {
auto socksProxy = value->asString();
if (!socksProxy)
return std::nullopt;
proxy.socksURL = URL({ }, makeString("socks://", socksProxy));
if (!proxy.socksURL->isValid())
return std::nullopt;
auto socksVersionValue = proxyObject.getValue("socksVersion");
if (!socksVersionValue)
return std::nullopt;
auto socksVersion = unsignedValue(*socksVersionValue);
if (!socksVersion || socksVersion.value() > 255)
return std::nullopt;
proxy.socksVersion = socksVersion.value();
}
if (auto value = proxyObject.getValue("noProxy"_s)) {
auto noProxy = value->asArray();
if (!noProxy)
return std::nullopt;
auto noProxyLength = noProxy->length();
for (unsigned i = 0; i < noProxyLength; ++i) {
auto address = noProxy->get(i)->asString();
if (!address)
return std::nullopt;
proxy.ignoreAddressList.append(address);
}
}
return proxy;
}
return std::nullopt;
}
static std::optional<PageLoadStrategy> deserializePageLoadStrategy(const String& pageLoadStrategy)
{
if (pageLoadStrategy == "none")
return PageLoadStrategy::None;
if (pageLoadStrategy == "normal")
return PageLoadStrategy::Normal;
if (pageLoadStrategy == "eager")
return PageLoadStrategy::Eager;
return std::nullopt;
}
static std::optional<UnhandledPromptBehavior> deserializeUnhandledPromptBehavior(const String& unhandledPromptBehavior)
{
if (unhandledPromptBehavior == "dismiss")
return UnhandledPromptBehavior::Dismiss;
if (unhandledPromptBehavior == "accept")
return UnhandledPromptBehavior::Accept;
if (unhandledPromptBehavior == "dismiss and notify")
return UnhandledPromptBehavior::DismissAndNotify;
if (unhandledPromptBehavior == "accept and notify")
return UnhandledPromptBehavior::AcceptAndNotify;
if (unhandledPromptBehavior == "ignore")
return UnhandledPromptBehavior::Ignore;
return std::nullopt;
}
void WebDriverService::parseCapabilities(const JSON::Object& matchedCapabilities, Capabilities& capabilities) const
{
// Matched capabilities have already been validated.
auto acceptInsecureCerts = matchedCapabilities.getBoolean("acceptInsecureCerts"_s);
if (acceptInsecureCerts)
capabilities.acceptInsecureCerts = *acceptInsecureCerts;
auto setWindowRect = matchedCapabilities.getBoolean("setWindowRect"_s);
if (setWindowRect)
capabilities.setWindowRect = *setWindowRect;
auto browserName = matchedCapabilities.getString("browserName"_s);
if (!!browserName)
capabilities.browserName = browserName;
auto browserVersion = matchedCapabilities.getString("browserVersion"_s);
if (!!browserVersion)
capabilities.browserVersion = browserVersion;
auto platformName = matchedCapabilities.getString("platformName"_s);
if (!!platformName)
capabilities.platformName = platformName;
auto proxy = matchedCapabilities.getObject("proxy"_s);
if (proxy)
capabilities.proxy = deserializeProxy(*proxy);
auto strictFileInteractability = matchedCapabilities.getBoolean("strictFileInteractability"_s);
if (strictFileInteractability)
capabilities.strictFileInteractability = *strictFileInteractability;
auto timeouts = matchedCapabilities.getObject("timeouts"_s);
if (timeouts)
capabilities.timeouts = deserializeTimeouts(*timeouts, IgnoreUnknownTimeout::No);
auto pageLoadStrategy = matchedCapabilities.getString("pageLoadStrategy"_s);
if (!!pageLoadStrategy)
capabilities.pageLoadStrategy = deserializePageLoadStrategy(pageLoadStrategy);
auto unhandledPromptBehavior = matchedCapabilities.getString("unhandledPromptBehavior"_s);
if (!!unhandledPromptBehavior)
capabilities.unhandledPromptBehavior = deserializeUnhandledPromptBehavior(unhandledPromptBehavior);
platformParseCapabilities(matchedCapabilities, capabilities);
}
bool WebDriverService::findSessionOrCompleteWithError(JSON::Object& parameters, Function<void (CommandResult&&)>& completionHandler)
{
auto sessionID = parameters.getString("sessionId"_s);
if (!sessionID) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidArgument));
return false;
}
if (!m_session || m_session->id() != sessionID) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidSessionID));
return false;
}
if (!m_session->isConnected()) {
m_session = nullptr;
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidSessionID, String("session deleted because of page crash or hang.")));
return false;
}
return true;
}
RefPtr<JSON::Object> WebDriverService::validatedCapabilities(const JSON::Object& capabilities) const
{
// §7.2 Processing Capabilities.
// https://w3c.github.io/webdriver/webdriver-spec.html#dfn-validate-capabilities
auto result = JSON::Object::create();
auto end = capabilities.end();
for (auto it = capabilities.begin(); it != end; ++it) {
if (it->value->isNull())
continue;
if (it->key == "acceptInsecureCerts") {
auto acceptInsecureCerts = it->value->asBoolean();
if (!acceptInsecureCerts)
return nullptr;
result->setBoolean(it->key, *acceptInsecureCerts);
} else if (it->key == "browserName" || it->key == "browserVersion" || it->key == "platformName") {
auto stringValue = it->value->asString();
if (!stringValue)
return nullptr;
result->setString(it->key, stringValue);
} else if (it->key == "pageLoadStrategy") {
auto pageLoadStrategy = it->value->asString();
if (!pageLoadStrategy || !deserializePageLoadStrategy(pageLoadStrategy))
return nullptr;
result->setString(it->key, pageLoadStrategy);
} else if (it->key == "proxy") {
auto proxy = it->value->asObject();
if (!proxy || !deserializeProxy(*proxy))
return nullptr;
result->setValue(it->key, *proxy);
} else if (it->key == "strictFileInteractability") {
auto strictFileInteractability = it->value->asBoolean();
if (!strictFileInteractability)
return nullptr;
result->setBoolean(it->key, *strictFileInteractability);
} else if (it->key == "timeouts") {
auto timeouts = it->value->asObject();
if (!timeouts || !deserializeTimeouts(*timeouts, IgnoreUnknownTimeout::No))
return nullptr;
result->setValue(it->key, *timeouts);
} else if (it->key == "unhandledPromptBehavior") {
auto unhandledPromptBehavior = it->value->asString();
if (!unhandledPromptBehavior || !deserializeUnhandledPromptBehavior(unhandledPromptBehavior))
return nullptr;
result->setString(it->key, unhandledPromptBehavior);
} else if (it->key.find(":") != notFound) {
if (!platformValidateCapability(it->key, it->value))
return nullptr;
result->setValue(it->key, it->value.copyRef());
} else
return nullptr;
}
return result;
}
RefPtr<JSON::Object> WebDriverService::mergeCapabilities(const JSON::Object& requiredCapabilities, const JSON::Object& firstMatchCapabilities) const
{
// §7.2 Processing Capabilities.
// https://w3c.github.io/webdriver/webdriver-spec.html#dfn-merging-capabilities
auto result = JSON::Object::create();
auto requiredEnd = requiredCapabilities.end();
for (auto it = requiredCapabilities.begin(); it != requiredEnd; ++it)
result->setValue(it->key, it->value.copyRef());
auto firstMatchEnd = firstMatchCapabilities.end();
for (auto it = firstMatchCapabilities.begin(); it != firstMatchEnd; ++it)
result->setValue(it->key, it->value.copyRef());
return result;
}
RefPtr<JSON::Object> WebDriverService::matchCapabilities(const JSON::Object& mergedCapabilities) const
{
// §7.2 Processing Capabilities.
// https://w3c.github.io/webdriver/webdriver-spec.html#dfn-matching-capabilities
Capabilities platformCapabilities = this->platformCapabilities();
// Some capabilities like browser name and version might need to launch the browser,
// so we only reject the known capabilities that don't match.
auto matchedCapabilities = JSON::Object::create();
if (platformCapabilities.browserName)
matchedCapabilities->setString("browserName"_s, platformCapabilities.browserName.value());
if (platformCapabilities.browserVersion)
matchedCapabilities->setString("browserVersion"_s, platformCapabilities.browserVersion.value());
if (platformCapabilities.platformName)
matchedCapabilities->setString("platformName"_s, platformCapabilities.platformName.value());
if (platformCapabilities.acceptInsecureCerts)
matchedCapabilities->setBoolean("acceptInsecureCerts"_s, platformCapabilities.acceptInsecureCerts.value());
if (platformCapabilities.strictFileInteractability)
matchedCapabilities->setBoolean("strictFileInteractability"_s, platformCapabilities.strictFileInteractability.value());
if (platformCapabilities.setWindowRect)
matchedCapabilities->setBoolean("setWindowRect"_s, platformCapabilities.setWindowRect.value());
auto end = mergedCapabilities.end();
for (auto it = mergedCapabilities.begin(); it != end; ++it) {
if (it->key == "browserName" && platformCapabilities.browserName) {
auto browserName = it->value->asString();
if (!equalIgnoringASCIICase(platformCapabilities.browserName.value(), browserName))
return nullptr;
} else if (it->key == "browserVersion" && platformCapabilities.browserVersion) {
auto browserVersion = it->value->asString();
if (!platformCompareBrowserVersions(browserVersion, platformCapabilities.browserVersion.value()))
return nullptr;
} else if (it->key == "platformName" && platformCapabilities.platformName) {
auto platformName = it->value->asString();
if (!equalLettersIgnoringASCIICase(platformName, "any") && platformCapabilities.platformName.value() != platformName)
return nullptr;
} else if (it->key == "acceptInsecureCerts" && platformCapabilities.acceptInsecureCerts) {
auto acceptInsecureCerts = it->value->asBoolean();
if (acceptInsecureCerts && !platformCapabilities.acceptInsecureCerts.value())
return nullptr;
} else if (it->key == "proxy") {
auto proxyType = it->value->asObject()->getString("proxyType"_s);
if (!platformSupportProxyType(proxyType))
return nullptr;
} else if (!platformMatchCapability(it->key, it->value))
return nullptr;
matchedCapabilities->setValue(it->key, it->value.copyRef());
}
return matchedCapabilities;
}
Vector<Capabilities> WebDriverService::processCapabilities(const JSON::Object& parameters, Function<void (CommandResult&&)>& completionHandler) const
{
// §7.2 Processing Capabilities.
// https://w3c.github.io/webdriver/webdriver-spec.html#processing-capabilities
// 1. Let capabilities request be the result of getting the property "capabilities" from parameters.
auto capabilitiesObject = parameters.getObject("capabilities"_s);
if (!capabilitiesObject) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidArgument));
return { };
}
// 2. Let required capabilities be the result of getting the property "alwaysMatch" from capabilities request.
RefPtr<JSON::Object> requiredCapabilities;
auto requiredCapabilitiesValue = capabilitiesObject->getValue("alwaysMatch"_s);
if (!requiredCapabilitiesValue) {
// 2.1. If required capabilities is undefined, set the value to an empty JSON Object.
requiredCapabilities = JSON::Object::create();
} else if (!(requiredCapabilities = requiredCapabilitiesValue->asObject())) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidArgument, String("alwaysMatch is invalid in capabilities")));
return { };
}
// 2.2. Let required capabilities be the result of trying to validate capabilities with argument required capabilities.
requiredCapabilities = validatedCapabilities(*requiredCapabilities);
if (!requiredCapabilities) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidArgument, String("Invalid alwaysMatch capabilities")));
return { };
}
// 3. Let all first match capabilities be the result of getting the property "firstMatch" from capabilities request.
RefPtr<JSON::Array> firstMatchCapabilitiesList;
auto firstMatchCapabilitiesValue = capabilitiesObject->getValue("firstMatch"_s);
if (!firstMatchCapabilitiesValue) {
// 3.1. If all first match capabilities is undefined, set the value to a JSON List with a single entry of an empty JSON Object.
firstMatchCapabilitiesList = JSON::Array::create();
firstMatchCapabilitiesList->pushObject(JSON::Object::create());
} else {
firstMatchCapabilitiesList = firstMatchCapabilitiesValue->asArray();
if (!firstMatchCapabilitiesList) {
// 3.2. If all first match capabilities is not a JSON List, return error with error code invalid argument.
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidArgument, String("firstMatch is invalid in capabilities")));
return { };
}
}
// 4. Let validated first match capabilities be an empty JSON List.
Vector<RefPtr<JSON::Object>> validatedFirstMatchCapabilitiesList;
auto firstMatchCapabilitiesListLength = firstMatchCapabilitiesList->length();
validatedFirstMatchCapabilitiesList.reserveInitialCapacity(firstMatchCapabilitiesListLength);
// 5. For each first match capabilities corresponding to an indexed property in all first match capabilities.
for (unsigned i = 0; i < firstMatchCapabilitiesListLength; ++i) {
auto firstMatchCapabilities = firstMatchCapabilitiesList->get(i)->asObject();
if (!firstMatchCapabilities) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidArgument, String("Invalid capabilities found in firstMatch")));
return { };
}
// 5.1. Let validated capabilities be the result of trying to validate capabilities with argument first match capabilities.
firstMatchCapabilities = validatedCapabilities(*firstMatchCapabilities);
if (!firstMatchCapabilities) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidArgument, String("Invalid firstMatch capabilities")));
return { };
}
// Validate here that firstMatchCapabilities don't shadow alwaysMatchCapabilities.
auto requiredEnd = requiredCapabilities->end();
auto firstMatchEnd = firstMatchCapabilities->end();
for (auto it = firstMatchCapabilities->begin(); it != firstMatchEnd; ++it) {
if (requiredCapabilities->find(it->key) != requiredEnd) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidArgument,
makeString("Invalid firstMatch capabilities: key ", it->key, " is present in alwaysMatch")));
return { };
}
}
// 5.2. Append validated capabilities to validated first match capabilities.
validatedFirstMatchCapabilitiesList.uncheckedAppend(WTFMove(firstMatchCapabilities));
}
// 6. For each first match capabilities corresponding to an indexed property in validated first match capabilities.
Vector<Capabilities> matchedCapabilitiesList;
matchedCapabilitiesList.reserveInitialCapacity(validatedFirstMatchCapabilitiesList.size());
for (auto& validatedFirstMatchCapabilies : validatedFirstMatchCapabilitiesList) {
// 6.1. Let merged capabilities be the result of trying to merge capabilities with required capabilities and first match capabilities as arguments.
auto mergedCapabilities = mergeCapabilities(*requiredCapabilities, *validatedFirstMatchCapabilies);
// 6.2. Let matched capabilities be the result of trying to match capabilities with merged capabilities as an argument.
if (auto matchedCapabilities = matchCapabilities(*mergedCapabilities)) {
// 6.3. If matched capabilities is not null return matched capabilities.
Capabilities capabilities;
parseCapabilities(*matchedCapabilities, capabilities);
matchedCapabilitiesList.uncheckedAppend(WTFMove(capabilities));
}
}
if (matchedCapabilitiesList.isEmpty()) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::SessionNotCreated, String("Failed to match capabilities")));
return { };
}
return matchedCapabilitiesList;
}
void WebDriverService::newSession(RefPtr<JSON::Object>&& parameters, Function<void (CommandResult&&)>&& completionHandler)
{
// §8.1 New Session.
// https://www.w3.org/TR/webdriver/#new-session
if (m_session) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::SessionNotCreated, String("Maximum number of active sessions")));
return;
}
auto matchedCapabilitiesList = processCapabilities(*parameters, completionHandler);
if (matchedCapabilitiesList.isEmpty())
return;
// Reverse the vector to always take last item.
matchedCapabilitiesList.reverse();
connectToBrowser(WTFMove(matchedCapabilitiesList), WTFMove(completionHandler));
}
void WebDriverService::connectToBrowser(Vector<Capabilities>&& capabilitiesList, Function<void (CommandResult&&)>&& completionHandler)
{
if (capabilitiesList.isEmpty()) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::SessionNotCreated, String("Failed to match capabilities")));
return;
}
auto sessionHost = makeUnique<SessionHost>(capabilitiesList.takeLast());
auto* sessionHostPtr = sessionHost.get();
#if USE(INSPECTOR_SOCKET_SERVER)
sessionHostPtr->setHostAddress(m_targetAddress, m_targetPort);
#endif
sessionHostPtr->connectToBrowser([this, capabilitiesList = WTFMove(capabilitiesList), sessionHost = WTFMove(sessionHost), completionHandler = WTFMove(completionHandler)](std::optional<String> error) mutable {
if (error) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::SessionNotCreated, makeString("Failed to connect to browser: ", error.value())));
return;
}
createSession(WTFMove(capabilitiesList), WTFMove(sessionHost), WTFMove(completionHandler));
});
}
void WebDriverService::createSession(Vector<Capabilities>&& capabilitiesList, std::unique_ptr<SessionHost>&& sessionHost, Function<void (CommandResult&&)>&& completionHandler)
{
auto* sessionHostPtr = sessionHost.get();
sessionHostPtr->startAutomationSession([this, capabilitiesList = WTFMove(capabilitiesList), sessionHost = WTFMove(sessionHost), completionHandler = WTFMove(completionHandler)](bool capabilitiesDidMatch, std::optional<String> errorMessage) mutable {
if (errorMessage) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::UnknownError, errorMessage.value()));
return;
}
if (!capabilitiesDidMatch) {
connectToBrowser(WTFMove(capabilitiesList), WTFMove(completionHandler));
return;
}
RefPtr<Session> session = Session::create(WTFMove(sessionHost));
session->createTopLevelBrowsingContext([this, session, completionHandler = WTFMove(completionHandler)](CommandResult&& result) mutable {
if (result.isError()) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::SessionNotCreated, result.errorMessage()));
return;
}
m_session = WTFMove(session);
auto resultObject = JSON::Object::create();
resultObject->setString("sessionId"_s, m_session->id());
auto capabilitiesObject = JSON::Object::create();
const auto& capabilities = m_session->capabilities();
capabilitiesObject->setString("browserName"_s, capabilities.browserName.value_or(emptyString()));
capabilitiesObject->setString("browserVersion"_s, capabilities.browserVersion.value_or(emptyString()));
capabilitiesObject->setString("platformName"_s, capabilities.platformName.value_or(emptyString()));
capabilitiesObject->setBoolean("acceptInsecureCerts"_s, capabilities.acceptInsecureCerts.value_or(false));
capabilitiesObject->setBoolean("strictFileInteractability"_s, capabilities.strictFileInteractability.value_or(false));
capabilitiesObject->setBoolean("setWindowRect"_s, capabilities.setWindowRect.value_or(true));
switch (capabilities.unhandledPromptBehavior.value_or(UnhandledPromptBehavior::DismissAndNotify)) {
case UnhandledPromptBehavior::Dismiss:
capabilitiesObject->setString("unhandledPromptBehavior"_s, "dismiss");
break;
case UnhandledPromptBehavior::Accept:
capabilitiesObject->setString("unhandledPromptBehavior"_s, "accept");
break;
case UnhandledPromptBehavior::DismissAndNotify:
capabilitiesObject->setString("unhandledPromptBehavior"_s, "dismiss and notify");
break;
case UnhandledPromptBehavior::AcceptAndNotify:
capabilitiesObject->setString("unhandledPromptBehavior"_s, "accept and notify");
break;
case UnhandledPromptBehavior::Ignore:
capabilitiesObject->setString("unhandledPromptBehavior"_s, "ignore");
break;
}
switch (capabilities.pageLoadStrategy.value_or(PageLoadStrategy::Normal)) {
case PageLoadStrategy::None:
capabilitiesObject->setString("pageLoadStrategy"_s, "none");
break;
case PageLoadStrategy::Normal:
capabilitiesObject->setString("pageLoadStrategy"_s, "normal");
break;
case PageLoadStrategy::Eager:
capabilitiesObject->setString("pageLoadStrategy"_s, "eager");
break;
}
if (!capabilities.proxy)
capabilitiesObject->setObject("proxy"_s, JSON::Object::create());
auto timeoutsObject = JSON::Object::create();
if (m_session->scriptTimeout() == std::numeric_limits<double>::infinity())
timeoutsObject->setValue("script"_s, JSON::Value::null());
else
timeoutsObject->setDouble("script"_s, m_session->scriptTimeout());
timeoutsObject->setDouble("pageLoad"_s, m_session->pageLoadTimeout());
timeoutsObject->setDouble("implicit"_s, m_session->implicitWaitTimeout());
capabilitiesObject->setObject("timeouts"_s, WTFMove(timeoutsObject));
resultObject->setObject("capabilities"_s, WTFMove(capabilitiesObject));
completionHandler(CommandResult::success(WTFMove(resultObject)));
});
});
}
void WebDriverService::deleteSession(RefPtr<JSON::Object>&& parameters, Function<void (CommandResult&&)>&& completionHandler)
{
// §8.2 Delete Session.
// https://www.w3.org/TR/webdriver/#delete-session
auto sessionID = parameters->getString("sessionId"_s);
if (!sessionID) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidArgument));
return;
}
if (!m_session || m_session->id() != sessionID) {
completionHandler(CommandResult::success());
return;
}
auto session = std::exchange(m_session, nullptr);
session->close([session, completionHandler = WTFMove(completionHandler)](CommandResult&& result) mutable {
// Ignore unknown errors when closing the session if the browser is closed.
if (result.isError() && result.errorCode() == CommandResult::ErrorCode::UnknownError && !session->isConnected())
completionHandler(CommandResult::success());
else
completionHandler(WTFMove(result));
});
}
void WebDriverService::status(RefPtr<JSON::Object>&&, Function<void (CommandResult&&)>&& completionHandler)
{
// §8.3 Status
// https://w3c.github.io/webdriver/webdriver-spec.html#status
auto body = JSON::Object::create();
body->setBoolean("ready"_s, !m_session);
body->setString("message"_s, m_session ? "A session already exists"_s : "No sessions"_s);
completionHandler(CommandResult::success(WTFMove(body)));
}
void WebDriverService::getTimeouts(RefPtr<JSON::Object>&& parameters, Function<void (CommandResult&&)>&& completionHandler)
{
// §8.4 Get Timeouts.
// https://w3c.github.io/webdriver/webdriver-spec.html#get-timeouts
if (!findSessionOrCompleteWithError(*parameters, completionHandler))
return;
m_session->getTimeouts(WTFMove(completionHandler));
}
void WebDriverService::setTimeouts(RefPtr<JSON::Object>&& parameters, Function<void (CommandResult&&)>&& completionHandler)
{
// §8.5 Set Timeouts.
// https://www.w3.org/TR/webdriver/#set-timeouts
if (!findSessionOrCompleteWithError(*parameters, completionHandler))
return;
auto timeouts = deserializeTimeouts(*parameters, IgnoreUnknownTimeout::Yes);
if (!timeouts) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidArgument));
return;
}
m_session->setTimeouts(timeouts.value(), WTFMove(completionHandler));
}
void WebDriverService::go(RefPtr<JSON::Object>&& parameters, Function<void (CommandResult&&)>&& completionHandler)
{
// §9.1 Go.
// https://www.w3.org/TR/webdriver/#go
if (!findSessionOrCompleteWithError(*parameters, completionHandler))
return;
auto url = parameters->getString("url"_s);
if (!url) {
completionHandler(CommandResult::fail(CommandResult::ErrorCode::InvalidArgument));
return;
}
m_session->waitForNavigationToComplete([this, url = WTFMove(url), completionHandler = WTFMove(completionHandler)](CommandResult&& result) mutable {
if (result.isError()) {
completionHandler(WTFMove(result));
return;
}
m_session->go(url, WTFMove(completionHandler));
});
}
void WebDriverService::getCurrentURL(RefPtr<JSON::Object>&& parameters, Function<void (CommandResult&&)>&& completionHandler)
{
// §9.2 Get Current URL.