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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/common/api/messaging/messaging_endpoint.h"
#include <utility>
#include "base/notreached.h"
#include "base/strings/string_number_conversions.h"
namespace extensions {
namespace {
base::debug::CrashKeyString* GetMessagingSourceTypeCrashKey() {
static auto* crash_key = base::debug::AllocateCrashKeyString(
"MessagingSource-type", base::debug::CrashKeySize::Size32);
return crash_key;
}
base::debug::CrashKeyString* GetMessagingSourceExtensionIdCrashKey() {
static auto* crash_key = base::debug::AllocateCrashKeyString(
"MessagingSource-extension_id", base::debug::CrashKeySize::Size64);
return crash_key;
}
base::debug::CrashKeyString* GetMessagingSourceNativeAppNameCrashKey() {
static auto* crash_key = base::debug::AllocateCrashKeyString(
"MessagingSource-native_app_name", base::debug::CrashKeySize::Size64);
return crash_key;
}
const char* ConvertMessagingSourceTypeToString(
const MessagingEndpoint::Type& type) {
switch (type) {
case MessagingEndpoint::Type::kExtension:
return "Extension";
case MessagingEndpoint::Type::kWebPage:
return "WebPage";
case MessagingEndpoint::Type::kContentScript:
return "ContentScript";
case MessagingEndpoint::Type::kUserScript:
return "UserScript";
case MessagingEndpoint::Type::kNativeApp:
return "NativeApp";
}
NOTREACHED();
}
base::debug::ScopedCrashKeyString CreateExtensionIdOrNativeAppNameScopedKey(
const MessagingEndpoint& endpoint) {
switch (endpoint.type) {
case MessagingEndpoint::Type::kExtension:
case MessagingEndpoint::Type::kContentScript:
case MessagingEndpoint::Type::kUserScript:
case MessagingEndpoint::Type::kWebPage:
return base::debug::ScopedCrashKeyString(
GetMessagingSourceExtensionIdCrashKey(),
endpoint.extension_id.value_or("<base::nullopt>"));
case MessagingEndpoint::Type::kNativeApp:
return base::debug::ScopedCrashKeyString(
GetMessagingSourceNativeAppNameCrashKey(),
endpoint.native_app_name.value_or("<base::nullopt>"));
}
NOTREACHED();
}
} // namespace
// static
MessagingEndpoint MessagingEndpoint::ForExtension(ExtensionId extension_id) {
MessagingEndpoint messaging_endpoint;
messaging_endpoint.type = MessagingEndpoint::Type::kExtension;
messaging_endpoint.extension_id = std::move(extension_id);
return messaging_endpoint;
}
// static
MessagingEndpoint MessagingEndpoint::ForContentScript(
ExtensionId extension_id) {
MessagingEndpoint messaging_endpoint;
messaging_endpoint.type = MessagingEndpoint::Type::kContentScript;
messaging_endpoint.extension_id = std::move(extension_id);
return messaging_endpoint;
}
// static
MessagingEndpoint MessagingEndpoint::ForUserScript(ExtensionId extension_id) {
MessagingEndpoint messaging_endpoint;
messaging_endpoint.type = MessagingEndpoint::Type::kUserScript;
messaging_endpoint.extension_id = std::move(extension_id);
return messaging_endpoint;
}
// static
MessagingEndpoint MessagingEndpoint::ForWebPage() {
MessagingEndpoint messaging_endpoint;
messaging_endpoint.type = MessagingEndpoint::Type::kWebPage;
return messaging_endpoint;
}
// static
MessagingEndpoint MessagingEndpoint::ForNativeApp(std::string native_app_name) {
MessagingEndpoint messaging_endpoint;
messaging_endpoint.type = MessagingEndpoint::Type::kNativeApp;
messaging_endpoint.native_app_name = std::move(native_app_name);
return messaging_endpoint;
}
// static
MessagingEndpoint::Relationship MessagingEndpoint::GetRelationship(
const MessagingEndpoint& source_endpoint,
const std::string& target_id) {
switch (source_endpoint.type) {
case Type::kExtension:
case Type::kContentScript:
CHECK(source_endpoint.extension_id);
return source_endpoint.extension_id == target_id
? Relationship::kInternal
: Relationship::kExternalExtension;
case Type::kUserScript:
CHECK(source_endpoint.extension_id);
CHECK_EQ(target_id, *source_endpoint.extension_id);
return Relationship::kInternal;
case Type::kWebPage:
return Relationship::kExternalWebPage;
case Type::kNativeApp:
return Relationship::kExternalNativeApp;
}
}
bool MessagingEndpoint::IsExternal(const MessagingEndpoint& source_endpoint,
const std::string& target_id) {
Relationship relationship = GetRelationship(source_endpoint, target_id);
switch (relationship) {
case MessagingEndpoint::Relationship::kInternal:
return false;
case MessagingEndpoint::Relationship::kExternalExtension:
case MessagingEndpoint::Relationship::kExternalWebPage:
case MessagingEndpoint::Relationship::kExternalNativeApp:
return true;
}
}
MessagingEndpoint::MessagingEndpoint() = default;
MessagingEndpoint::MessagingEndpoint(const MessagingEndpoint&) = default;
MessagingEndpoint::MessagingEndpoint(MessagingEndpoint&&) = default;
MessagingEndpoint& MessagingEndpoint::operator=(const MessagingEndpoint&) =
default;
MessagingEndpoint::~MessagingEndpoint() = default;
namespace debug {
ScopedMessagingEndpointCrashKeys::ScopedMessagingEndpointCrashKeys(
const MessagingEndpoint& endpoint)
: type_(GetMessagingSourceTypeCrashKey(),
ConvertMessagingSourceTypeToString(endpoint.type)),
extension_id_or_app_name_(
CreateExtensionIdOrNativeAppNameScopedKey(endpoint)) {}
ScopedMessagingEndpointCrashKeys::~ScopedMessagingEndpointCrashKeys() = default;
} // namespace debug
} // namespace extensions
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