ladybird/Libraries/LibCore/ResourceImplementation.cpp

93 lines
3.1 KiB
C++

/*
* Copyright (c) 2023, Andrew Kaster <akaster@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/DirIterator.h>
#include <LibCore/ResourceImplementation.h>
#include <LibCore/ResourceImplementationFile.h>
#include <LibCore/System.h>
namespace Core {
static OwnPtr<ResourceImplementation> s_the;
void ResourceImplementation::install(OwnPtr<ResourceImplementation> the)
{
s_the = move(the);
}
ResourceImplementation& ResourceImplementation::the()
{
if (!s_the)
install(make<ResourceImplementationFile>("/res"_string));
return *s_the;
}
NonnullRefPtr<Resource> ResourceImplementation::make_resource(String full_path, NonnullOwnPtr<Core::MappedFile> file, time_t modified_time)
{
return adopt_ref(*new Resource(move(full_path), Resource::Scheme::Resource, move(file), modified_time));
}
NonnullRefPtr<Resource> ResourceImplementation::make_resource(String full_path, ByteBuffer buffer, time_t modified_time)
{
return adopt_ref(*new Resource(move(full_path), Resource::Scheme::Resource, move(buffer), modified_time));
}
NonnullRefPtr<Resource> ResourceImplementation::make_directory_resource(String full_path, time_t modified_time)
{
return adopt_ref(*new Resource(move(full_path), Resource::Scheme::Resource, Resource::DirectoryTag {}, modified_time));
}
ErrorOr<NonnullRefPtr<Resource>> ResourceImplementation::load_from_uri(StringView uri)
{
StringView const file_scheme = "file://"sv;
StringView const resource_scheme = "resource://"sv;
if (uri.starts_with(resource_scheme))
return load_from_resource_scheme_uri(uri);
if (uri.starts_with(file_scheme)) {
auto path = uri.substring_view(file_scheme.length());
auto utf8_path = TRY(String::from_utf8(path));
auto st = TRY(System::stat(utf8_path));
if (S_ISDIR(st.st_mode))
return adopt_ref(*new Resource(utf8_path, Resource::Scheme::File, Resource::DirectoryTag {}, st.st_mtime));
auto mapped_file = TRY(MappedFile::map(path));
return adopt_ref(*new Resource(utf8_path, Resource::Scheme::File, move(mapped_file), st.st_mtime));
}
dbgln("ResourceImplementation: Unknown scheme for {}", uri);
return Error::from_string_literal("Invalid scheme");
}
Vector<String> ResourceImplementation::child_names(Resource const& resource)
{
if (!resource.is_directory())
return {};
if (resource.m_scheme == Resource::Scheme::Resource)
return child_names_for_resource_scheme(resource);
VERIFY(resource.m_scheme == Resource::Scheme::File);
Vector<String> children;
Core::DirIterator it(resource.filesystem_path().to_byte_string(), Core::DirIterator::SkipParentAndBaseDir);
while (it.has_next())
children.append(MUST(String::from_byte_string(it.next_path())));
return children;
}
String ResourceImplementation::filesystem_path(Resource const& resource)
{
if (resource.m_scheme == Resource::Scheme::Resource)
return filesystem_path_for_resource_scheme(resource.m_path);
VERIFY(resource.m_scheme == Resource::Scheme::File);
return resource.m_path;
}
}