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AK: Implement more conforming URL percent encode/decode mechanism

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This adds a few new functions to percent encode/decode strings according
to the URL specification. The functions allow specifying a
PercentEncodeSet, which is defined by the specification. It will be used
to replace the current urlencode() and urldecode() functions in a
further commit.

This commit adds a few duplicate helper functions in the URL class, such
as is_digit() and is_ascii_digit(). This will be cleaned up as soon as
the upcoming new URL parser will replace the current one.
This commit is contained in:
Max Wipfli 2021-05-25 13:50:03 +02:00 • committed by Andreas Kling
parent 0e4f7aa8e8
commit 2a6c9bc5f7
2 changed files with 132 additions and 0 deletions
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18
AK/URL.h
View file

@ -17,6 +17,18 @@ namespace AK {
class URL {
public:
enum class PercentEncodeSet {
C0Control,
Fragment,
Query,
SpecialQuery,
Path,
Userinfo,
Component,
ApplicationXWWWFormUrlencoded,
EncodeURI
};
URL() = default;
URL(const StringView&);
URL(const char* string)
@ -67,6 +79,9 @@ public:
static bool scheme_requires_port(const StringView&);
static u16 default_port_for_scheme(const StringView&);
static String percent_encode(const StringView& input, PercentEncodeSet set = PercentEncodeSet::Userinfo);
static String percent_decode(const StringView& input);
bool operator==(const URL& other) const
{
if (this == &other)
@ -78,6 +93,9 @@ private:
bool parse(const StringView&);
bool compute_validity() 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 };
u16 m_port { 0 };
bool m_data_payload_is_base64 { false };