mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-26 17:40:27 +00:00
1682f0b760
SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <AK/Optional.h>
|
|
#include <AK/String.h>
|
|
#include <AK/StringBuilder.h>
|
|
#include <AK/StringUtils.h>
|
|
#include <AK/URLParser.h>
|
|
|
|
namespace AK {
|
|
|
|
static bool is_ascii_hex_digit(u8 ch)
|
|
{
|
|
return (ch >= '0' && ch <= '9') || (ch >= 'a' && ch <= 'f') || (ch >= 'A' && ch <= 'F');
|
|
}
|
|
|
|
String urldecode(const StringView& input)
|
|
{
|
|
size_t cursor = 0;
|
|
|
|
auto peek = [&](size_t offset = 0) -> u8 {
|
|
if (cursor + offset >= input.length())
|
|
return 0;
|
|
return input[cursor + offset];
|
|
};
|
|
|
|
auto consume = [&] {
|
|
return input[cursor++];
|
|
};
|
|
|
|
StringBuilder builder;
|
|
while (cursor < input.length()) {
|
|
if (peek() != '%') {
|
|
builder.append(consume());
|
|
continue;
|
|
}
|
|
if (!is_ascii_hex_digit(peek(1)) || !is_ascii_hex_digit(peek(2))) {
|
|
builder.append(consume());
|
|
continue;
|
|
}
|
|
auto byte_point = StringUtils::convert_to_uint_from_hex(input.substring_view(cursor + 1, 2));
|
|
builder.append(byte_point.value());
|
|
consume();
|
|
consume();
|
|
consume();
|
|
}
|
|
return builder.to_string();
|
|
}
|
|
|
|
static inline bool in_c0_control_set(u32 c)
|
|
{
|
|
return c <= 0x1f || c > '~';
|
|
}
|
|
|
|
static inline bool in_fragment_set(u32 c)
|
|
{
|
|
return in_c0_control_set(c) || c == ' ' || c == '"' || c == '<' || c == '>' || c == '`';
|
|
}
|
|
|
|
static inline bool in_path_set(u32 c)
|
|
{
|
|
return in_fragment_set(c) || c == '#' || c == '?' || c == '{' || c == '}';
|
|
}
|
|
|
|
static inline bool in_userinfo_set(u32 c)
|
|
{
|
|
return in_path_set(c) || c == '/' || c == ':' || c == ';' || c == '=' || c == '@' || (c >= '[' && c <= '^') || c == '|';
|
|
}
|
|
|
|
String urlencode(const StringView& input, const StringView& exclude)
|
|
{
|
|
StringBuilder builder;
|
|
for (unsigned char ch : input) {
|
|
if (in_userinfo_set((u8)ch) && !exclude.contains(ch)) {
|
|
builder.append('%');
|
|
builder.appendff("{:02X}", ch);
|
|
} else {
|
|
builder.append(ch);
|
|
}
|
|
}
|
|
return builder.to_string();
|
|
}
|
|
|
|
}
|