| /* |
| * Copyright (C) 2020-2021 Apple Inc. All rights reserved. |
| * |
| * 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. |
| */ |
| |
| #import "config.h" |
| #import "XPCEndpoint.h" |
| |
| #import <wtf/cocoa/Entitlements.h> |
| |
| #if PLATFORM(MAC) |
| #import "CodeSigning.h" |
| #import <wtf/RetainPtr.h> |
| #import <wtf/text/WTFString.h> |
| #endif |
| |
| namespace WebKit { |
| |
| XPCEndpoint::XPCEndpoint() |
| { |
| m_connection = adoptOSObject(xpc_connection_create(nullptr, nullptr)); |
| m_endpoint = adoptOSObject(xpc_endpoint_create(m_connection.get())); |
| |
| xpc_connection_set_target_queue(m_connection.get(), dispatch_get_main_queue()); |
| xpc_connection_set_event_handler(m_connection.get(), ^(xpc_object_t message) { |
| xpc_type_t type = xpc_get_type(message); |
| |
| if (type == XPC_TYPE_CONNECTION) { |
| OSObjectPtr<xpc_connection_t> connection = message; |
| #if USE(APPLE_INTERNAL_SDK) |
| auto pid = xpc_connection_get_pid(connection.get()); |
| |
| if (pid != getpid() && !WTF::hasEntitlement(connection.get(), "com.apple.private.webkit.use-xpc-endpoint")) { |
| WTFLogAlways("Audit token does not have required entitlement com.apple.private.webkit.use-xpc-endpoint"); |
| #if PLATFORM(MAC) |
| auto [signingIdentifier, isPlatformBinary] = codeSigningIdentifierAndPlatformBinaryStatus(connection.get()); |
| |
| if (!isPlatformBinary || !signingIdentifier.startsWith("com.apple.WebKit.WebContent")) { |
| WTFLogAlways("XPC endpoint denied to connect with unknown client"); |
| return; |
| } |
| #else |
| return; |
| #endif |
| } |
| #endif // USE(APPLE_INTERNAL_SDK) |
| xpc_connection_set_target_queue(connection.get(), dispatch_get_main_queue()); |
| xpc_connection_set_event_handler(connection.get(), ^(xpc_object_t event) { |
| handleEvent(connection.get(), event); |
| }); |
| xpc_connection_resume(connection.get()); |
| } |
| }); |
| xpc_connection_resume(m_connection.get()); |
| } |
| |
| void XPCEndpoint::sendEndpointToConnection(xpc_connection_t connection) |
| { |
| if (!connection) |
| return; |
| |
| auto message = adoptOSObject(xpc_dictionary_create(nullptr, nullptr, 0)); |
| xpc_dictionary_set_string(message.get(), xpcEndpointMessageNameKey(), xpcEndpointMessageName()); |
| xpc_dictionary_set_value(message.get(), xpcEndpointNameKey(), m_endpoint.get()); |
| |
| xpc_connection_send_message(connection, message.get()); |
| } |
| |
| OSObjectPtr<xpc_endpoint_t> XPCEndpoint::endpoint() const |
| { |
| return m_endpoint; |
| } |
| |
| } |