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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/common/extensions/api/extension_api.h"
#include <string>
#include "base/file_path.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/values.h"
#include "chrome/common/extensions/extension.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
using extensions::ExtensionAPI;
using extensions::Feature;
TEST(ExtensionAPI, IsPrivileged) {
ExtensionAPI* extension_api = ExtensionAPI::GetInstance();
EXPECT_FALSE(extension_api->IsPrivileged("extension.connect"));
EXPECT_FALSE(extension_api->IsPrivileged("extension.onConnect"));
// Properties are not supported yet.
EXPECT_TRUE(extension_api->IsPrivileged("extension.lastError"));
// Default unknown names to privileged for paranoia's sake.
EXPECT_TRUE(extension_api->IsPrivileged(""));
EXPECT_TRUE(extension_api->IsPrivileged("<unknown-namespace>"));
EXPECT_TRUE(extension_api->IsPrivileged("extension.<unknown-member>"));
// Exists, but privileged.
EXPECT_TRUE(extension_api->IsPrivileged("extension.getViews"));
EXPECT_TRUE(extension_api->IsPrivileged("history.search"));
// Whole APIs that are unprivileged.
EXPECT_FALSE(extension_api->IsPrivileged("app.getDetails"));
EXPECT_FALSE(extension_api->IsPrivileged("app.isInstalled"));
EXPECT_FALSE(extension_api->IsPrivileged("storage.local"));
EXPECT_FALSE(extension_api->IsPrivileged("storage.local.onChanged"));
EXPECT_FALSE(extension_api->IsPrivileged("storage.local.set"));
EXPECT_FALSE(extension_api->IsPrivileged("storage.local.MAX_ITEMS"));
EXPECT_FALSE(extension_api->IsPrivileged("storage.set"));
}
scoped_refptr<Extension> CreateExtensionWithPermissions(
const std::set<std::string>& permissions) {
DictionaryValue manifest;
manifest.SetString("name", "extension");
manifest.SetString("version", "1.0");
{
scoped_ptr<ListValue> permissions_list(new ListValue());
for (std::set<std::string>::const_iterator i = permissions.begin();
i != permissions.end(); ++i) {
permissions_list->Append(Value::CreateStringValue(*i));
}
manifest.Set("permissions", permissions_list.release());
}
std::string error;
scoped_refptr<Extension> extension(Extension::Create(
FilePath(), Extension::LOAD, manifest, Extension::NO_FLAGS, &error));
CHECK(extension.get());
CHECK(error.empty());
return extension;
}
scoped_refptr<Extension> CreateExtensionWithPermission(
const std::string& permission) {
std::set<std::string> permissions;
permissions.insert(permission);
return CreateExtensionWithPermissions(permissions);
}
TEST(ExtensionAPI, ExtensionWithUnprivilegedAPIs) {
scoped_refptr<Extension> extension;
{
std::set<std::string> permissions;
permissions.insert("storage");
permissions.insert("history");
extension = CreateExtensionWithPermissions(permissions);
}
scoped_ptr<std::set<std::string> > privileged_apis =
ExtensionAPI::GetInstance()->GetAPIsForContext(
Feature::PRIVILEGED_CONTEXT, extension.get(), GURL());
scoped_ptr<std::set<std::string> > unprivileged_apis =
ExtensionAPI::GetInstance()->GetAPIsForContext(
Feature::UNPRIVILEGED_CONTEXT, extension.get(), GURL());
scoped_ptr<std::set<std::string> > content_script_apis =
ExtensionAPI::GetInstance()->GetAPIsForContext(
Feature::CONTENT_SCRIPT_CONTEXT, extension.get(), GURL());
// "storage" is completely unprivileged.
EXPECT_EQ(1u, privileged_apis->count("storage"));
EXPECT_EQ(1u, unprivileged_apis->count("storage"));
EXPECT_EQ(1u, content_script_apis->count("storage"));
// "extension" is partially unprivileged.
EXPECT_EQ(1u, privileged_apis->count("extension"));
EXPECT_EQ(1u, unprivileged_apis->count("extension"));
EXPECT_EQ(1u, content_script_apis->count("extension"));
// "history" is entirely privileged.
EXPECT_EQ(1u, privileged_apis->count("history"));
EXPECT_EQ(0u, unprivileged_apis->count("history"));
EXPECT_EQ(0u, content_script_apis->count("history"));
}
TEST(ExtensionAPI, ExtensionWithDependencies) {
// Extension with the "ttsEngine" permission but not the "tts" permission; it
// must load TTS.
{
scoped_refptr<Extension> extension =
CreateExtensionWithPermission("ttsEngine");
scoped_ptr<std::set<std::string> > apis =
ExtensionAPI::GetInstance()->GetAPIsForContext(
Feature::PRIVILEGED_CONTEXT, extension.get(), GURL());
EXPECT_EQ(1u, apis->count("ttsEngine"));
EXPECT_EQ(1u, apis->count("tts"));
}
// Conversely, extension with the "tts" permission but not the "ttsEngine"
// permission shouldn't get the "ttsEngine" permission.
{
scoped_refptr<Extension> extension =
CreateExtensionWithPermission("tts");
scoped_ptr<std::set<std::string> > apis =
ExtensionAPI::GetInstance()->GetAPIsForContext(
Feature::PRIVILEGED_CONTEXT, extension.get(), GURL());
EXPECT_EQ(0u, apis->count("ttsEngine"));
EXPECT_EQ(1u, apis->count("tts"));
}
}
bool MatchesURL(const std::string& api_name, const std::string& url) {
scoped_ptr<std::set<std::string> > apis =
ExtensionAPI::GetInstance()->GetAPIsForContext(
Feature::WEB_PAGE_CONTEXT, NULL, GURL(url));
return apis->count(api_name);
}
TEST(ExtensionAPI, URLMatching) {
// "app" API is available to all URLs that content scripts can be injected.
EXPECT_TRUE(MatchesURL("app", "http://example.com/example.html"));
EXPECT_TRUE(MatchesURL("app", "https://blah.net"));
EXPECT_TRUE(MatchesURL("app", "file://somefile.html"));
// But not internal URLs (for chrome-extension:// the app API is injected by
// GetSchemasForExtension).
EXPECT_FALSE(MatchesURL("app", "about:flags"));
EXPECT_FALSE(MatchesURL("app", "chrome://flags"));
EXPECT_FALSE(MatchesURL("app", "chrome-extension://fakeextension"));
// "storage" API (for example) isn't available to any URLs.
EXPECT_FALSE(MatchesURL("storage", "http://example.com/example.html"));
EXPECT_FALSE(MatchesURL("storage", "https://blah.net"));
EXPECT_FALSE(MatchesURL("storage", "file://somefile.html"));
EXPECT_FALSE(MatchesURL("storage", "about:flags"));
EXPECT_FALSE(MatchesURL("storage", "chrome://flags"));
EXPECT_FALSE(MatchesURL("storage", "chrome-extension://fakeextension"));
}
} // namespace
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