ladybird/AK/URL.h
2022-11-03 17:38:32 +00:00

167 lines
5.5 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Max Wipfli <mail@maxwipfli.ch>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/String.h>
#include <AK/StringView.h>
#include <AK/Vector.h>
// On Linux distros that use mlibc `basename` is defined as a macro that expands to `__mlibc_gnu_basename` or `__mlibc_gnu_basename_c`, so we undefine it.
#if defined(AK_OS_LINUX) && defined(basename)
# undef basename
#endif
namespace AK {
// NOTE: The member variables cannot contain any percent encoded sequences.
// The URL parser automatically decodes those sequences and the serialize() method will re-encode them as necessary.
class URL {
friend class URLParser;
public:
enum class PercentEncodeSet {
C0Control,
Fragment,
Query,
SpecialQuery,
Path,
Userinfo,
Component,
ApplicationXWWWFormUrlencoded,
EncodeURI
};
enum class ExcludeFragment {
No,
Yes
};
URL() = default;
URL(StringView);
URL(String const& string)
: URL(string.view())
{
}
bool is_valid() const { return m_valid; }
String const& scheme() const { return m_scheme; }
String const& username() const { return m_username; }
String const& password() const { return m_password; }
String const& host() const { return m_host; }
Vector<String> const& paths() const { return m_paths; }
String const& query() const { return m_query; }
String const& fragment() const { return m_fragment; }
Optional<u16> port() const { return m_port; }
u16 port_or_default() const { return m_port.value_or(default_port_for_scheme(m_scheme)); }
bool cannot_be_a_base_url() const { return m_cannot_be_a_base_url; }
bool cannot_have_a_username_or_password_or_port() const { return m_host.is_null() || m_host.is_empty() || m_cannot_be_a_base_url || m_scheme == "file"sv; }
bool includes_credentials() const { return !m_username.is_empty() || !m_password.is_empty(); }
bool is_special() const { return is_special_scheme(m_scheme); }
void set_scheme(String);
void set_username(String);
void set_password(String);
void set_host(String);
void set_port(Optional<u16>);
void set_paths(Vector<String>);
void set_query(String);
void set_fragment(String);
void set_cannot_be_a_base_url(bool value) { m_cannot_be_a_base_url = value; }
void append_path(String path) { m_paths.append(move(path)); }
String path() const;
String basename() const;
String serialize(ExcludeFragment = ExcludeFragment::No) const;
String serialize_for_display() const;
String to_string() const { return serialize(); }
// HTML origin
String serialize_origin() const;
bool equals(URL const& other, ExcludeFragment = ExcludeFragment::No) const;
URL complete_url(String const&) const;
bool data_payload_is_base64() const { return m_data_payload_is_base64; }
String const& data_mime_type() const { return m_data_mime_type; }
String const& data_payload() const { return m_data_payload; }
static URL create_with_url_or_path(String const&);
static URL create_with_file_scheme(String const& path, String const& fragment = {}, String const& hostname = {});
static URL create_with_help_scheme(String const& path, String const& fragment = {}, String const& hostname = {});
static URL create_with_data(String mime_type, String payload, bool is_base64 = false) { return URL(move(mime_type), move(payload), is_base64); };
static bool scheme_requires_port(StringView);
static u16 default_port_for_scheme(StringView);
static bool is_special_scheme(StringView);
enum class SpaceAsPlus {
No,
Yes,
};
static String percent_encode(StringView input, PercentEncodeSet set = PercentEncodeSet::Userinfo, SpaceAsPlus = SpaceAsPlus::No);
static String percent_decode(StringView input);
bool operator==(URL const& other) const { return equals(other, ExcludeFragment::No); }
static bool code_point_is_in_percent_encode_set(u32 code_point, URL::PercentEncodeSet);
private:
URL(String&& data_mime_type, String&& data_payload, bool payload_is_base64)
: m_valid(true)
, m_scheme("data")
, m_data_payload_is_base64(payload_is_base64)
, m_data_mime_type(move(data_mime_type))
, m_data_payload(move(data_payload))
{
}
bool compute_validity() const;
String serialize_data_url() const;
static void append_percent_encoded_if_necessary(StringBuilder&, u32 code_point, PercentEncodeSet set = PercentEncodeSet::Userinfo);
static void append_percent_encoded(StringBuilder&, u32 code_point);
bool m_valid { false };
String m_scheme;
String m_username;
String m_password;
String m_host;
// NOTE: If the port is the default port for the scheme, m_port should be empty.
Optional<u16> m_port;
String m_path;
Vector<String> m_paths;
String m_query;
String m_fragment;
bool m_cannot_be_a_base_url { false };
bool m_data_payload_is_base64 { false };
String m_data_mime_type;
String m_data_payload;
};
template<>
struct Formatter<URL> : Formatter<StringView> {
ErrorOr<void> format(FormatBuilder& builder, URL const& value)
{
return Formatter<StringView>::format(builder, value.serialize());
}
};
template<>
struct Traits<URL> : public GenericTraits<URL> {
static unsigned hash(URL const& url) { return url.to_string().hash(); }
};
}