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ladybird/Userland/Utilities/headless-browser.cpp
Andrew Kaster 36cd2fb7c5 Ladybird+WebContent: Update IPC calls to handle multiple traversables 
The IPC layer between chromes and LibWeb now understands that multiple
top level traversables can live in each WebContent process.

This largely mechanical change adds a billion page_id/page_index
arguments to make sure that pages that end up opening new WebViews
through mechanisms like window.open() still work properly with those
extra windows.
2024-02-03 20:51:37 -05:00

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/*
* Copyright (c) 2022, Dex♪ <dexes.ttp@gmail.com>
* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
* Copyright (c) 2023, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2023, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Badge.h>
#include <AK/ByteString.h>
#include <AK/Function.h>
#include <AK/JsonObject.h>
#include <AK/JsonParser.h>
#include <AK/LexicalPath.h>
#include <AK/NonnullOwnPtr.h>
#include <AK/Platform.h>
#include <AK/String.h>
#include <AK/URL.h>
#include <AK/Vector.h>
#include <Ladybird/Types.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/ConfigFile.h>
#include <LibCore/DirIterator.h>
#include <LibCore/Directory.h>
#include <LibCore/EventLoop.h>
#include <LibCore/File.h>
#include <LibCore/Promise.h>
#include <LibCore/ResourceImplementationFile.h>
#include <LibCore/Timer.h>
#include <LibDiff/Format.h>
#include <LibDiff/Generator.h>
#include <LibFileSystem/FileSystem.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Font/FontDatabase.h>
#include <LibGfx/ImageFormats/PNGWriter.h>
#include <LibGfx/Point.h>
#include <LibGfx/Rect.h>
#include <LibGfx/ShareableBitmap.h>
#include <LibGfx/Size.h>
#include <LibGfx/StandardCursor.h>
#include <LibGfx/SystemTheme.h>
#include <LibIPC/File.h>
#include <LibWeb/Cookie/Cookie.h>
#include <LibWeb/Cookie/ParsedCookie.h>
#include <LibWeb/HTML/ActivateTab.h>
#include <LibWeb/Worker/WebWorkerClient.h>
#include <LibWebView/CookieJar.h>
#include <LibWebView/Database.h>
#include <LibWebView/URL.h>
#include <LibWebView/ViewImplementation.h>
#include <LibWebView/WebContentClient.h>
#if !defined(AK_OS_SERENITY)
# include <Ladybird/HelperProcess.h>
# include <Ladybird/Utilities.h>
#endif
constexpr int DEFAULT_TIMEOUT_MS = 30000; // 30sec
static StringView s_current_test_path;
class HeadlessWebContentView final : public WebView::ViewImplementation {
public:
static ErrorOr<NonnullOwnPtr<HeadlessWebContentView>> create(Core::AnonymousBuffer theme, Gfx::IntSize const& window_size, String const& command_line, StringView web_driver_ipc_path, Ladybird::IsLayoutTestMode is_layout_test_mode = Ladybird::IsLayoutTestMode::No)
{
#if defined(AK_OS_SERENITY)
auto database = TRY(WebView::Database::create());
#else
auto sql_server_paths = TRY(get_paths_for_helper_process("SQLServer"sv));
auto database = TRY(WebView::Database::create(move(sql_server_paths)));
#endif
auto cookie_jar = TRY(WebView::CookieJar::create(*database));
auto view = TRY(adopt_nonnull_own_or_enomem(new (nothrow) HeadlessWebContentView(move(database), move(cookie_jar))));
#if defined(AK_OS_SERENITY)
view->m_client_state.client = TRY(WebView::WebContentClient::try_create(*view));
(void)command_line;
(void)is_layout_test_mode;
#else
Ladybird::WebContentOptions web_content_options {
.command_line = command_line,
.executable_path = MUST(String::from_byte_string(MUST(Core::System::current_executable_path()))),
.is_layout_test_mode = is_layout_test_mode,
};
auto candidate_web_content_paths = TRY(get_paths_for_helper_process("WebContent"sv));
view->m_client_state.client = TRY(launch_web_content_process(*view, candidate_web_content_paths, web_content_options));
#endif
view->client().async_update_system_theme(0, move(theme));
view->client().async_update_system_fonts(0, Gfx::FontDatabase::default_font_query(), Gfx::FontDatabase::fixed_width_font_query(), Gfx::FontDatabase::window_title_font_query());
view->m_viewport_rect = { { 0, 0 }, window_size };
view->client().async_set_viewport_rect(0, view->m_viewport_rect.to_type<Web::DevicePixels>());
view->client().async_set_window_size(0, window_size.to_type<Web::DevicePixels>());
if (!web_driver_ipc_path.is_empty())
view->client().async_connect_to_webdriver(0, web_driver_ipc_path);
view->m_client_state.client->on_web_content_process_crash = [] {
warnln("\033[31;1mWebContent Crashed!!\033[0m");
if (!s_current_test_path.is_empty()) {
warnln(" Last started test: {}", s_current_test_path);
}
VERIFY_NOT_REACHED();
};
return view;
}
RefPtr<Gfx::Bitmap> take_screenshot()
{
VERIFY(!m_pending_screenshot);
m_pending_screenshot = Core::Promise<RefPtr<Gfx::Bitmap>>::construct();
client().async_take_document_screenshot(0);
auto screenshot = MUST(m_pending_screenshot->await());
m_pending_screenshot = nullptr;
return screenshot;
}
virtual void did_receive_screenshot(Badge<WebView::WebContentClient>, Gfx::ShareableBitmap const& screenshot) override
{
VERIFY(m_pending_screenshot);
m_pending_screenshot->resolve(screenshot.bitmap());
}
ErrorOr<String> dump_layout_tree()
{
return String::from_byte_string(client().dump_layout_tree(0));
}
ErrorOr<String> dump_paint_tree()
{
return String::from_byte_string(client().dump_paint_tree(0));
}
ErrorOr<String> dump_text()
{
return String::from_byte_string(client().dump_text(0));
}
void clear_content_filters()
{
client().async_set_content_filters(0, {});
}
private:
HeadlessWebContentView(NonnullRefPtr<WebView::Database> database, WebView::CookieJar cookie_jar)
: m_database(move(database))
, m_cookie_jar(move(cookie_jar))
{
on_scroll_to_point = [this](auto position) {
m_viewport_rect.set_location(position);
client().async_set_viewport_rect(0, m_viewport_rect.to_type<Web::DevicePixels>());
};
on_scroll_by_delta = [this](auto x_delta, auto y_delta) {
auto position = m_viewport_rect.location();
position.set_x(position.x() + x_delta);
position.set_y(position.y() + y_delta);
if (on_scroll_to_point)
on_scroll_to_point(position);
};
on_get_cookie = [this](auto const& url, auto source) {
return m_cookie_jar.get_cookie(url, source);
};
on_set_cookie = [this](auto const& url, auto const& cookie, auto source) {
m_cookie_jar.set_cookie(url, cookie, source);
};
on_request_worker_agent = []() {
#if defined(AK_OS_SERENITY)
auto worker_client = MUST(Web::HTML::WebWorkerClient::try_create());
#else
auto worker_client = MUST(launch_web_worker_process(MUST(get_paths_for_helper_process("WebWorker"sv))));
#endif
return worker_client->dup_sockets();
};
}
void update_zoom() override { }
void initialize_client(CreateNewClient) override { }
virtual Web::DevicePixelRect viewport_rect() const override { return m_viewport_rect.to_type<Web::DevicePixels>(); }
virtual Gfx::IntPoint to_content_position(Gfx::IntPoint widget_position) const override { return widget_position; }
virtual Gfx::IntPoint to_widget_position(Gfx::IntPoint content_position) const override { return content_position; }
private:
Gfx::IntRect m_viewport_rect;
RefPtr<Core::Promise<RefPtr<Gfx::Bitmap>>> m_pending_screenshot;
NonnullRefPtr<WebView::Database> m_database;
WebView::CookieJar m_cookie_jar;
};
static ErrorOr<NonnullRefPtr<Core::Timer>> load_page_for_screenshot_and_exit(Core::EventLoop& event_loop, HeadlessWebContentView& view, int screenshot_timeout)
{
// FIXME: Allow passing the output path as an argument.
static constexpr auto output_file_path = "output.png"sv;
if (FileSystem::exists(output_file_path))
TRY(FileSystem::remove(output_file_path, FileSystem::RecursionMode::Disallowed));
outln("Taking screenshot after {} seconds", screenshot_timeout);
auto timer = TRY(Core::Timer::create_single_shot(
screenshot_timeout * 1000,
[&]() {
if (auto screenshot = view.take_screenshot()) {
outln("Saving screenshot to {}", output_file_path);
auto output_file = MUST(Core::File::open(output_file_path, Core::File::OpenMode::Write));
auto image_buffer = MUST(Gfx::PNGWriter::encode(*screenshot));
MUST(output_file->write_until_depleted(image_buffer.bytes()));
} else {
warnln("No screenshot available");
}
event_loop.quit(0);
}));
timer->start();
return timer;
}
enum class TestMode {
Layout,
Text,
Ref,
};
enum class TestResult {
Pass,
Fail,
Skipped,
Timeout,
};
static StringView test_result_to_string(TestResult result)
{
switch (result) {
case TestResult::Pass:
return "Pass"sv;
case TestResult::Fail:
return "Fail"sv;
case TestResult::Skipped:
return "Skipped"sv;
case TestResult::Timeout:
return "Timeout"sv;
}
VERIFY_NOT_REACHED();
}
static ErrorOr<TestResult> run_dump_test(HeadlessWebContentView& view, StringView input_path, StringView expectation_path, TestMode mode, int timeout_in_milliseconds = DEFAULT_TIMEOUT_MS)
{
Core::EventLoop loop;
bool did_timeout = false;
auto timeout_timer = TRY(Core::Timer::create_single_shot(timeout_in_milliseconds, [&] {
did_timeout = true;
loop.quit(0);
}));
auto url = URL::create_with_file_scheme(TRY(FileSystem::real_path(input_path)));
String result;
auto did_finish_test = false;
auto did_finish_loading = false;
if (mode == TestMode::Layout) {
view.on_load_finish = [&](auto const& loaded_url) {
VERIFY(url.equals(loaded_url, URL::ExcludeFragment::Yes));
// NOTE: We take a screenshot here to force the lazy layout of SVG-as-image documents to happen.
// It also causes a lot more code to run, which is good for finding bugs. :^)
(void)view.take_screenshot();
StringBuilder builder;
builder.append(view.dump_layout_tree().release_value_but_fixme_should_propagate_errors());
builder.append("\n"sv);
builder.append(view.dump_paint_tree().release_value_but_fixme_should_propagate_errors());
result = builder.to_string().release_value_but_fixme_should_propagate_errors();
loop.quit(0);
};
view.on_text_test_finish = {};
} else if (mode == TestMode::Text) {
view.on_load_finish = [&](auto const& loaded_url) {
VERIFY(url.equals(loaded_url, URL::ExcludeFragment::Yes));
did_finish_loading = true;
if (did_finish_test)
loop.quit(0);
};
view.on_text_test_finish = [&]() {
result = view.dump_text().release_value_but_fixme_should_propagate_errors();
did_finish_test = true;
if (did_finish_loading)
loop.quit(0);
};
}
view.load(url);
timeout_timer->start();
loop.exec();
if (did_timeout)
return TestResult::Timeout;
if (expectation_path.is_empty()) {
out("{}", result);
return TestResult::Skipped;
}
auto expectation_file_or_error = Core::File::open(expectation_path, Core::File::OpenMode::Read);
if (expectation_file_or_error.is_error()) {
warnln("Failed opening '{}': {}", expectation_path, expectation_file_or_error.error());
return expectation_file_or_error.release_error();
}
auto expectation_file = expectation_file_or_error.release_value();
auto expectation = TRY(String::from_utf8(StringView(TRY(expectation_file->read_until_eof()).bytes())));
auto actual = result;
auto actual_trimmed = TRY(actual.trim("\n"sv, TrimMode::Right));
auto expectation_trimmed = TRY(expectation.trim("\n"sv, TrimMode::Right));
if (actual_trimmed == expectation_trimmed)
return TestResult::Pass;
auto const color_output = isatty(STDOUT_FILENO) ? Diff::ColorOutput::Yes : Diff::ColorOutput::No;
if (color_output == Diff::ColorOutput::Yes)
outln("\n\033[33;1mTest failed\033[0m: {}", input_path);
else
outln("\nTest failed: {}", input_path);
auto hunks = TRY(Diff::from_text(expectation, actual, 3));
auto out = TRY(Core::File::standard_output());
TRY(Diff::write_unified_header(expectation_path, expectation_path, *out));
for (auto const& hunk : hunks)
TRY(Diff::write_unified(hunk, *out, color_output));
return TestResult::Fail;
}
static ErrorOr<TestResult> run_ref_test(HeadlessWebContentView& view, StringView input_path, bool dump_failed_ref_tests, int timeout_in_milliseconds = DEFAULT_TIMEOUT_MS)
{
Core::EventLoop loop;
bool did_timeout = false;
auto timeout_timer = TRY(Core::Timer::create_single_shot(timeout_in_milliseconds, [&] {
did_timeout = true;
loop.quit(0);
}));
RefPtr<Gfx::Bitmap> actual_screenshot, expectation_screenshot;
view.on_load_finish = [&](auto const&) {
if (actual_screenshot) {
expectation_screenshot = view.take_screenshot();
loop.quit(0);
} else {
actual_screenshot = view.take_screenshot();
view.debug_request("load-reference-page");
}
};
view.on_text_test_finish = [&] {
dbgln("Unexpected text test finished during ref test for {}", input_path);
};
view.load(URL::create_with_file_scheme(TRY(FileSystem::real_path(input_path))));
timeout_timer->start();
loop.exec();
if (did_timeout)
return TestResult::Timeout;
VERIFY(actual_screenshot);
VERIFY(expectation_screenshot);
if (actual_screenshot->visually_equals(*expectation_screenshot))
return TestResult::Pass;
if (dump_failed_ref_tests) {
warnln("\033[33;1mRef test {} failed; dumping screenshots\033[0m", input_path);
auto title = LexicalPath::title(input_path);
auto dump_screenshot = [&](Gfx::Bitmap& bitmap, StringView path) -> ErrorOr<void> {
auto screenshot_file = TRY(Core::File::open(path, Core::File::OpenMode::Write));
auto encoded_data = TRY(Gfx::PNGWriter::encode(bitmap));
TRY(screenshot_file->write_until_depleted(encoded_data));
warnln("\033[33;1mDumped {}\033[0m", TRY(FileSystem::real_path(path)));
return {};
};
auto mkdir_result = Core::System::mkdir("test-dumps"sv, 0755);
if (mkdir_result.is_error() && mkdir_result.error().code() != EEXIST)
return mkdir_result.release_error();
TRY(dump_screenshot(*actual_screenshot, TRY(String::formatted("test-dumps/{}.png", title))));
TRY(dump_screenshot(*expectation_screenshot, TRY(String::formatted("test-dumps/{}-ref.png", title))));
}
return TestResult::Fail;
}
static ErrorOr<TestResult> run_test(HeadlessWebContentView& view, StringView input_path, StringView expectation_path, TestMode mode, bool dump_failed_ref_tests)
{
// Clear the current document.
// FIXME: Implement a debug-request to do this more thoroughly.
auto promise = Core::Promise<Empty>::construct();
view.on_load_finish = [&](auto) {
promise->resolve({});
};
view.on_text_test_finish = {};
view.load(URL("about:blank"sv));
MUST(promise->await());
s_current_test_path = input_path;
switch (mode) {
case TestMode::Text:
case TestMode::Layout:
return run_dump_test(view, input_path, expectation_path, mode);
case TestMode::Ref:
return run_ref_test(view, input_path, dump_failed_ref_tests);
default:
VERIFY_NOT_REACHED();
}
}
struct Test {
String input_path;
String expectation_path;
TestMode mode;
Optional<TestResult> result;
};
static Vector<ByteString> s_skipped_tests;
static ErrorOr<void> load_test_config(StringView test_root_path)
{
auto config_path = LexicalPath::join(test_root_path, "TestConfig.ini"sv);
auto config_or_error = Core::ConfigFile::open(config_path.string());
if (config_or_error.is_error()) {
if (config_or_error.error().code() == ENOENT)
return {};
dbgln("Unable to open test config {}", config_path);
return config_or_error.release_error();
}
auto config = config_or_error.release_value();
for (auto const& group : config->groups()) {
if (group == "Skipped"sv) {
for (auto& key : config->keys(group))
s_skipped_tests.append(LexicalPath::join(test_root_path, key).string());
} else {
warnln("Unknown group '{}' in config {}", group, config_path);
}
}
return {};
}
static ErrorOr<void> collect_dump_tests(Vector<Test>& tests, StringView path, StringView trail, TestMode mode)
{
Core::DirIterator it(TRY(String::formatted("{}/input/{}", path, trail)).to_byte_string(), Core::DirIterator::Flags::SkipDots);
while (it.has_next()) {
auto name = it.next_path();
auto input_path = TRY(FileSystem::real_path(TRY(String::formatted("{}/input/{}/{}", path, trail, name))));
if (FileSystem::is_directory(input_path)) {
TRY(collect_dump_tests(tests, path, TRY(String::formatted("{}/{}", trail, name)), mode));
continue;
}
if (!name.ends_with(".html"sv))
continue;
auto basename = LexicalPath::title(name);
auto expectation_path = TRY(String::formatted("{}/expected/{}/{}.txt", path, trail, basename));
// FIXME: Test paths should be ByteString
tests.append({ TRY(String::from_byte_string(input_path)), move(expectation_path), mode, {} });
}
return {};
}
static ErrorOr<void> collect_ref_tests(Vector<Test>& tests, StringView path)
{
TRY(Core::Directory::for_each_entry(path, Core::DirIterator::SkipDots, [&](Core::DirectoryEntry const& entry, Core::Directory const&) -> ErrorOr<IterationDecision> {
if (entry.type == Core::DirectoryEntry::Type::Directory)
return IterationDecision::Continue;
auto input_path = TRY(FileSystem::real_path(TRY(String::formatted("{}/{}", path, entry.name))));
// FIXME: Test paths should be ByteString
tests.append({ TRY(String::from_byte_string(input_path)), {}, TestMode::Ref, {} });
return IterationDecision::Continue;
}));
return {};
}
static ErrorOr<int> run_tests(HeadlessWebContentView& view, StringView test_root_path, StringView test_glob, bool dump_failed_ref_tests)
{
view.clear_content_filters();
TRY(load_test_config(test_root_path));
Vector<Test> tests;
TRY(collect_dump_tests(tests, TRY(String::formatted("{}/Layout", test_root_path)), "."sv, TestMode::Layout));
TRY(collect_dump_tests(tests, TRY(String::formatted("{}/Text", test_root_path)), "."sv, TestMode::Text));
TRY(collect_ref_tests(tests, TRY(String::formatted("{}/Ref", test_root_path))));
tests.remove_all_matching([&](auto const& test) {
return !test.input_path.bytes_as_string_view().matches(test_glob, CaseSensitivity::CaseSensitive);
});
size_t pass_count = 0;
size_t fail_count = 0;
size_t timeout_count = 0;
size_t skipped_count = 0;
bool is_tty = isatty(STDOUT_FILENO);
outln("Running {} tests...", tests.size());
for (size_t i = 0; i < tests.size(); ++i) {
auto& test = tests[i];
if (is_tty) {
// Keep clearing and reusing the same line if stdout is a TTY.
out("\33[2K\r");
}
out("{}/{}: {}", i + 1, tests.size(), LexicalPath::relative_path(test.input_path, test_root_path));
if (is_tty)
fflush(stdout);
else
outln("");
if (s_skipped_tests.contains_slow(test.input_path.bytes_as_string_view())) {
test.result = TestResult::Skipped;
++skipped_count;
continue;
}
test.result = TRY(run_test(view, test.input_path, test.expectation_path, test.mode, dump_failed_ref_tests));
switch (*test.result) {
case TestResult::Pass:
++pass_count;
break;
case TestResult::Fail:
++fail_count;
break;
case TestResult::Timeout:
++timeout_count;
break;
case TestResult::Skipped:
VERIFY_NOT_REACHED();
break;
}
}
if (is_tty)
outln("\33[2K\rDone!");
outln("==================================================");
outln("Pass: {}, Fail: {}, Skipped: {}, Timeout: {}", pass_count, fail_count, skipped_count, timeout_count);
outln("==================================================");
for (auto& test : tests) {
if (*test.result == TestResult::Pass)
continue;
outln("{}: {}", test_result_to_string(*test.result), test.input_path);
}
if (timeout_count == 0 && fail_count == 0)
return 0;
return 1;
}
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
Core::EventLoop event_loop;
int screenshot_timeout = 1;
StringView raw_url;
auto resources_folder = "/res"sv;
StringView web_driver_ipc_path;
bool dump_failed_ref_tests = false;
bool dump_layout_tree = false;
bool dump_text = false;
bool is_layout_test_mode = false;
StringView test_root_path;
ByteString test_glob;
Core::ArgsParser args_parser;
args_parser.set_general_help("This utility runs the Browser in headless mode.");
args_parser.add_option(screenshot_timeout, "Take a screenshot after [n] seconds (default: 1)", "screenshot", 's', "n");
args_parser.add_option(dump_layout_tree, "Dump layout tree and exit", "dump-layout-tree", 'd');
args_parser.add_option(dump_text, "Dump text and exit", "dump-text", 'T');
args_parser.add_option(test_root_path, "Run tests in path", "run-tests", 'R', "test-root-path");
args_parser.add_option(test_glob, "Only run tests matching the given glob", "filter", 'f', "glob");
args_parser.add_option(dump_failed_ref_tests, "Dump screenshots of failing ref tests", "dump-failed-ref-tests", 'D');
args_parser.add_option(resources_folder, "Path of the base resources folder (defaults to /res)", "resources", 'r', "resources-root-path");
args_parser.add_option(web_driver_ipc_path, "Path to the WebDriver IPC socket", "webdriver-ipc-path", 0, "path");
args_parser.add_option(is_layout_test_mode, "Enable layout test mode", "layout-test-mode", 0);
args_parser.add_positional_argument(raw_url, "URL to open", "url", Core::ArgsParser::Required::No);
args_parser.parse(arguments);
Gfx::FontDatabase::set_default_font_query("Katica 10 400 0");
Gfx::FontDatabase::set_window_title_font_query("Katica 10 700 0");
Gfx::FontDatabase::set_fixed_width_font_query("Csilla 10 400 0");
Core::ResourceImplementation::install(make<Core::ResourceImplementationFile>(MUST(String::from_utf8(resources_folder))));
auto theme_path = LexicalPath::join(resources_folder, "themes"sv, "Default.ini"sv);
auto theme = TRY(Gfx::load_system_theme(theme_path.string()));
// FIXME: Allow passing the window size as an argument.
static constexpr Gfx::IntSize window_size { 800, 600 };
if (!test_root_path.is_empty()) {
// --run-tests implies --layout-test-mode.
is_layout_test_mode = true;
}
StringBuilder command_line_builder;
command_line_builder.join(' ', arguments.strings);
auto view = TRY(HeadlessWebContentView::create(move(theme), window_size, MUST(command_line_builder.to_string()), web_driver_ipc_path, is_layout_test_mode ? Ladybird::IsLayoutTestMode::Yes : Ladybird::IsLayoutTestMode::No));
if (!test_root_path.is_empty()) {
test_glob = ByteString::formatted("*{}*", test_glob);
return run_tests(*view, test_root_path, test_glob, dump_failed_ref_tests);
}
auto url = WebView::sanitize_url(raw_url);
if (!url.has_value()) {
warnln("Invalid URL: \"{}\"", raw_url);
return Error::from_string_literal("Invalid URL");
}
if (dump_layout_tree) {
TRY(run_dump_test(*view, raw_url, ""sv, TestMode::Layout));
return 0;
}
if (dump_text) {
TRY(run_dump_test(*view, raw_url, ""sv, TestMode::Text));
return 0;
}
if (web_driver_ipc_path.is_empty()) {
auto timer = TRY(load_page_for_screenshot_and_exit(event_loop, *view, screenshot_timeout));
return event_loop.exec();
}
return 0;
}
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