e800605ad3
This URL library ends up being a relatively fundamental base library of the system, as LibCore depends on LibURL. This change has two main benefits: * Moving AK back more towards being an agnostic library that can be used between the kernel and userspace. URL has never really fit that description - and is not used in the kernel. * URL _should_ depend on LibUnicode, as it needs punnycode support. However, it's not really possible to do this inside of AK as it can't depend on any external library. This change brings us a little closer to being able to do that, but unfortunately we aren't there quite yet, as the code generators depend on LibCore.
92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
/*
|
||
* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
|
||
*
|
||
* SPDX-License-Identifier: BSD-2-Clause
|
||
*/
|
||
|
||
#include <AK/StringBuilder.h>
|
||
#include <LibURL/URL.h>
|
||
#include <LibWeb/Crypto/Crypto.h>
|
||
#include <LibWeb/FileAPI/Blob.h>
|
||
#include <LibWeb/FileAPI/BlobURLStore.h>
|
||
#include <LibWeb/HTML/Origin.h>
|
||
#include <LibWeb/HTML/Scripting/Environments.h>
|
||
|
||
namespace Web::FileAPI {
|
||
|
||
BlobURLStore& blob_url_store()
|
||
{
|
||
static HashMap<String, BlobURLEntry> store;
|
||
return store;
|
||
}
|
||
|
||
// https://w3c.github.io/FileAPI/#unicodeBlobURL
|
||
ErrorOr<String> generate_new_blob_url()
|
||
{
|
||
// 1. Let result be the empty string.
|
||
StringBuilder result;
|
||
|
||
// 2. Append the string "blob:" to result.
|
||
TRY(result.try_append("blob:"sv));
|
||
|
||
// 3. Let settings be the current settings object
|
||
auto& settings = HTML::current_settings_object();
|
||
|
||
// 4. Let origin be settings’s origin.
|
||
auto origin = settings.origin();
|
||
|
||
// 5. Let serialized be the ASCII serialization of origin.
|
||
auto serialized = origin.serialize();
|
||
|
||
// 6. If serialized is "null", set it to an implementation-defined value.
|
||
if (serialized == "null"sv)
|
||
serialized = "ladybird"sv;
|
||
|
||
// 7. Append serialized to result.
|
||
TRY(result.try_append(serialized));
|
||
|
||
// 8. Append U+0024 SOLIDUS (/) to result.
|
||
TRY(result.try_append('/'));
|
||
|
||
// 9. Generate a UUID [RFC4122] as a string and append it to result.
|
||
auto uuid = TRY(Crypto::generate_random_uuid());
|
||
TRY(result.try_append(uuid));
|
||
|
||
// 10. Return result.
|
||
return result.to_string();
|
||
}
|
||
|
||
// https://w3c.github.io/FileAPI/#add-an-entry
|
||
ErrorOr<String> add_entry_to_blob_url_store(JS::NonnullGCPtr<Blob> object)
|
||
{
|
||
// 1. Let store be the user agent’s blob URL store.
|
||
auto& store = blob_url_store();
|
||
|
||
// 2. Let url be the result of generating a new blob URL.
|
||
auto url = TRY(generate_new_blob_url());
|
||
|
||
// 3. Let entry be a new blob URL entry consisting of object and the current settings object.
|
||
BlobURLEntry entry { object, HTML::current_settings_object() };
|
||
|
||
// 4. Set store[url] to entry.
|
||
TRY(store.try_set(url, move(entry)));
|
||
|
||
// 5. Return url.
|
||
return url;
|
||
}
|
||
|
||
// https://w3c.github.io/FileAPI/#removeTheEntry
|
||
ErrorOr<void> remove_entry_from_blob_url_store(StringView url)
|
||
{
|
||
// 1. Let store be the user agent’s blob URL store;
|
||
auto& store = blob_url_store();
|
||
|
||
// 2. Let url string be the result of serializing url.
|
||
auto url_string = TRY(URL::URL { url }.to_string());
|
||
|
||
// 3. Remove store[url string].
|
||
store.remove(url_string);
|
||
return {};
|
||
}
|
||
|
||
}
|