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// 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.
package org.openqa.selenium.remote;
import static java.net.HttpURLConnection.HTTP_INTERNAL_ERROR;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.logging.Logger;
import java.util.stream.Collectors;
import org.openqa.selenium.ElementClickInterceptedException;
import org.openqa.selenium.ElementNotInteractableException;
import org.openqa.selenium.InvalidArgumentException;
import org.openqa.selenium.InvalidCookieDomainException;
import org.openqa.selenium.InvalidElementStateException;
import org.openqa.selenium.InvalidSelectorException;
import org.openqa.selenium.JavascriptException;
import org.openqa.selenium.NoAlertPresentException;
import org.openqa.selenium.NoSuchCookieException;
import org.openqa.selenium.NoSuchElementException;
import org.openqa.selenium.NoSuchFrameException;
import org.openqa.selenium.NoSuchSessionException;
import org.openqa.selenium.NoSuchShadowRootException;
import org.openqa.selenium.NoSuchWindowException;
import org.openqa.selenium.ScriptTimeoutException;
import org.openqa.selenium.SessionNotCreatedException;
import org.openqa.selenium.StaleElementReferenceException;
import org.openqa.selenium.TimeoutException;
import org.openqa.selenium.UnableToSetCookieException;
import org.openqa.selenium.UnhandledAlertException;
import org.openqa.selenium.UnsupportedCommandException;
import org.openqa.selenium.WebDriverException;
import org.openqa.selenium.interactions.MoveTargetOutOfBoundsException;
/** Defines common error codes for the wire protocol. */
public class ErrorCodes {
public static final String SUCCESS_STRING = "success";
public static final int SUCCESS = 0;
public static final int NO_SUCH_SESSION = 6;
public static final int NO_SUCH_ELEMENT = 7;
public static final int NO_SUCH_FRAME = 8;
public static final int UNKNOWN_COMMAND = 9;
public static final int STALE_ELEMENT_REFERENCE = 10;
public static final int INVALID_ELEMENT_STATE = 12;
public static final int UNHANDLED_ERROR = 13;
public static final int JAVASCRIPT_ERROR = 17;
public static final int XPATH_LOOKUP_ERROR = 19;
public static final int TIMEOUT = 21;
public static final int NO_SUCH_WINDOW = 23;
public static final int INVALID_COOKIE_DOMAIN = 24;
public static final int UNABLE_TO_SET_COOKIE = 25;
public static final int UNEXPECTED_ALERT_PRESENT = 26;
public static final int NO_ALERT_PRESENT = 27;
public static final int ASYNC_SCRIPT_TIMEOUT = 28;
public static final int INVALID_SELECTOR_ERROR = 32;
public static final int SESSION_NOT_CREATED = 33;
public static final int MOVE_TARGET_OUT_OF_BOUNDS = 34;
public static final int INVALID_XPATH_SELECTOR = 51;
public static final int INVALID_XPATH_SELECTOR_RETURN_TYPER = 52;
// json wire protocol doesn't have analogous status codes for
// these new W3C status response 'codes', so making some up!
public static final int ELEMENT_NOT_INTERACTABLE = 60;
public static final int INVALID_ARGUMENT = 61;
public static final int NO_SUCH_COOKIE = 62;
public static final int UNABLE_TO_CAPTURE_SCREEN = 63;
public static final int ELEMENT_CLICK_INTERCEPTED = 64;
public static final int NO_SUCH_SHADOW_ROOT = 65;
// The following error codes are derived straight from HTTP return codes.
public static final int METHOD_NOT_ALLOWED = 405;
private static final Logger LOG = Logger.getLogger(ErrorCodes.class.getName());
// Every row on this table should be self-explanatory, except for the two booleans at the end.
// The first of these is "isCanonicalJsonCodeForException". This means that when doing the mapping
// for a JSON Wire Protocol status code, this KnownError provides the exception that should be
// thrown. The second boolean is "isCanonicalForW3C". This means that when mapping a state or
// exception to a W3C state, this KnownError provides the default exception and Json Wire Protocol
// status to send.
private static final ImmutableSet KNOWN_ERRORS =
ImmutableSet.builder()
.add(
new KnownError(
ASYNC_SCRIPT_TIMEOUT,
"script timeout",
500,
ScriptTimeoutException.class,
true,
true))
.add(
new KnownError(
ELEMENT_CLICK_INTERCEPTED,
"element click intercepted",
400,
ElementClickInterceptedException.class,
true,
true))
.add(
new KnownError(
ELEMENT_NOT_INTERACTABLE,
"element not interactable",
400,
ElementNotInteractableException.class,
true,
true))
.add(
new KnownError(
INVALID_ARGUMENT,
"invalid argument",
400,
InvalidArgumentException.class,
true,
true))
.add(
new KnownError(
INVALID_COOKIE_DOMAIN,
"invalid cookie domain",
400,
InvalidCookieDomainException.class,
true,
true))
.add(
new KnownError(
INVALID_ELEMENT_STATE,
"invalid element state",
400,
InvalidElementStateException.class,
true,
true))
.add(
new KnownError(
INVALID_SELECTOR_ERROR,
"invalid selector",
400,
InvalidSelectorException.class,
true,
true))
.add(
new KnownError(
INVALID_XPATH_SELECTOR,
"invalid selector",
400,
InvalidSelectorException.class,
false,
false))
.add(
new KnownError(
INVALID_XPATH_SELECTOR_RETURN_TYPER,
"invalid selector",
400,
InvalidSelectorException.class,
false,
true))
.add(
new KnownError(
JAVASCRIPT_ERROR, "javascript error", 500, JavascriptException.class, true, true))
.add(
new KnownError(
METHOD_NOT_ALLOWED,
"unknown method",
405,
UnsupportedCommandException.class,
false,
true))
.add(
new KnownError(
METHOD_NOT_ALLOWED,
"unsupported operation",
500,
UnsupportedCommandException.class,
false,
true))
.add(
new KnownError(
MOVE_TARGET_OUT_OF_BOUNDS,
"move target out of bounds",
500,
MoveTargetOutOfBoundsException.class,
true,
true))
.add(
new KnownError(
NO_ALERT_PRESENT,
"no such alert",
404,
NoAlertPresentException.class,
true,
true))
.add(
new KnownError(
NO_SUCH_COOKIE, "no such cookie", 404, NoSuchCookieException.class, true, true))
.add(
new KnownError(
NO_SUCH_ELEMENT,
"no such element",
404,
NoSuchElementException.class,
true,
true))
.add(
new KnownError(
NO_SUCH_FRAME, "no such frame", 404, NoSuchFrameException.class, true, true))
.add(
new KnownError(
NO_SUCH_SESSION,
"invalid session id",
404,
NoSuchSessionException.class,
true,
true))
.add(
new KnownError(
NO_SUCH_SHADOW_ROOT,
"no such shadow root",
404,
NoSuchShadowRootException.class,
true,
true))
.add(
new KnownError(
NO_SUCH_WINDOW, "no such window", 404, NoSuchWindowException.class, true, true))
.add(
new KnownError(
SESSION_NOT_CREATED,
"session not created",
500,
SessionNotCreatedException.class,
true,
true))
.add(
new KnownError(
STALE_ELEMENT_REFERENCE,
"stale element reference",
404,
StaleElementReferenceException.class,
true,
true))
.add(new KnownError(TIMEOUT, "timeout", 500, TimeoutException.class, true, true))
.add(
new KnownError(
XPATH_LOOKUP_ERROR,
"invalid selector",
400,
InvalidSelectorException.class,
false,
false))
.add(
new KnownError(
UNABLE_TO_CAPTURE_SCREEN,
"unable to capture screen",
500,
ScreenshotException.class,
true,
true))
.add(
new KnownError(
UNABLE_TO_SET_COOKIE,
"unable to set cookie",
500,
UnableToSetCookieException.class,
true,
true))
.add(
new KnownError(
UNEXPECTED_ALERT_PRESENT,
"unexpected alert open",
500,
UnhandledAlertException.class,
true,
true))
.add(
new KnownError(
UNHANDLED_ERROR, "unknown error", 500, WebDriverException.class, true, true))
.add(
new KnownError(
UNKNOWN_COMMAND,
"unknown command",
404,
UnsupportedCommandException.class,
true,
true))
.build();
static {
{
// Validate uniqueness constraints.
//
// There should be only one canonical JSON Wire protocol code per exception
Map> matched = new HashMap<>();
for (KnownError knownError : KNOWN_ERRORS) {
matched.computeIfAbsent(knownError, key -> new HashSet<>()).add(knownError);
}
for (Set errors : matched.values()) {
if (errors.size() != 1) {
throw new RuntimeException("Duplicate canonical exceptions: " + errors);
}
}
// There should only be one canonical W3C code to JSON Wire Protocol code
// matched = new HashMap<>();
// for (KnownError error : KNOWN_ERRORS) {
// matched.computeIfAbsent(error.getW3cCode(), key -> new HashSet<>()).add(error);
// }
// for (Set errors : matched.values()) {
// if (errors.size() != 1) {
// throw new RuntimeException("Duplicate canonical w3c state codes: " + errors);
// }
// }
}
}
public String toState(Integer status) {
if (status == null) {
return toState(UNHANDLED_ERROR);
}
if (SUCCESS == status) {
return SUCCESS_STRING;
}
Set possibleMatches =
KNOWN_ERRORS.stream()
.filter(knownError -> knownError.getJsonCode() == status)
.filter(KnownError::isCanonicalForW3C)
.map(KnownError::getW3cCode)
.collect(Collectors.toSet());
return Iterables.getOnlyElement(possibleMatches, "unhandled error");
}
public int toStatus(String webdriverState, Optional httpStatus) {
if (SUCCESS_STRING.equals(webdriverState)) {
return 0;
}
List possibleMatches =
KNOWN_ERRORS.stream()
.filter(knownError -> knownError.getW3cCode().equals(webdriverState))
.filter(KnownError::isCanonicalForW3C)
.sorted(Comparator.comparingInt(KnownError::getJsonCode))
.collect(Collectors.toList());
if (possibleMatches.isEmpty()) {
return UNHANDLED_ERROR;
}
KnownError error = possibleMatches.get(0);
if (httpStatus.isPresent() && httpStatus.get() != error.getW3cHttpStatus()) {
LOG.info(
String.format(
"HTTP Status: '%d' -> incorrect JSON status mapping for '%s' (%d expected)",
httpStatus.get(), webdriverState, error.getW3cHttpStatus()));
}
return error.getJsonCode();
}
public int getHttpStatusCode(Throwable throwable) {
return KNOWN_ERRORS.stream()
.filter(error -> error.getException().isAssignableFrom(throwable.getClass()))
.filter(KnownError::isCanonicalForW3C)
.map(KnownError::getW3cHttpStatus)
.findAny()
.orElse(HTTP_INTERNAL_ERROR);
}
/**
* Returns the exception type that corresponds to the given {@code statusCode}. All unrecognized
* status codes will be mapped to {@link WebDriverException WebDriverException.class}.
*
* @param statusCode The status code to convert.
* @return The exception type that corresponds to the provided status code or {@code null} if
* {@code statusCode == 0}.
*/
public Class getExceptionType(int statusCode) {
if (SUCCESS == statusCode) {
return null;
}
// We know that the tuple of (status code, exception) is distinct.
Set> allPossibleExceptions =
KNOWN_ERRORS.stream()
.filter(knownError -> knownError.getJsonCode() == statusCode)
.map(KnownError::getException)
.collect(Collectors.toSet());
return Iterables.getOnlyElement(allPossibleExceptions, WebDriverException.class);
}
public Class getExceptionType(String webdriverState) {
Set> possibleMatches =
KNOWN_ERRORS.stream()
.filter(knownError -> knownError.getW3cCode().equals(webdriverState))
.filter(KnownError::isCanonicalForW3C)
.map(KnownError::getException)
.collect(Collectors.toSet());
return Iterables.getOnlyElement(possibleMatches, WebDriverException.class);
}
public int toStatusCode(Throwable e) {
if (e == null) {
return SUCCESS;
}
Set possibleMatches =
KNOWN_ERRORS.stream()
.filter(knownError -> knownError.getException().equals(e.getClass()))
.filter(knownError -> knownError.isCanonicalJsonCodeForException)
.map(KnownError::getJsonCode)
.collect(Collectors.toSet());
return Iterables.getOnlyElement(possibleMatches, UNHANDLED_ERROR);
}
public boolean isMappableError(Throwable rootCause) {
if (rootCause == null) {
return false;
}
Set possibleMatches =
KNOWN_ERRORS.stream()
.filter(knownError -> knownError.getException().equals(rootCause.getClass()))
.collect(Collectors.toSet());
return !possibleMatches.isEmpty();
}
private static class KnownError {
private final int jsonCode;
private final String w3cCode;
private final int w3cHttpStatus;
private final Class exception;
private final boolean isCanonicalJsonCodeForException;
private final boolean isCanonicalForW3C;
public KnownError(
int jsonCode,
String w3cCode,
int w3cHttpStatus,
Class exception,
boolean isCanonicalJsonCodeForException,
boolean isCanonicalForW3C) {
this.jsonCode = jsonCode;
this.w3cCode = w3cCode;
this.w3cHttpStatus = w3cHttpStatus;
this.exception = exception;
this.isCanonicalJsonCodeForException = isCanonicalJsonCodeForException;
this.isCanonicalForW3C = isCanonicalForW3C;
}
public int getJsonCode() {
return jsonCode;
}
public String getW3cCode() {
return w3cCode;
}
public int getW3cHttpStatus() {
return w3cHttpStatus;
}
public Class getException() {
return exception;
}
public boolean isCanonicalForW3C() {
return isCanonicalForW3C;
}
}
}
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