mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-20 17:58:18 +03:00
b3f82f724d
The Blob URL store is intended to be a singleton across all WebContent instances. But for now, this implements a per-WebContent store, which only lives as long as the WebContent process itself.
93 lines
2.5 KiB
C++
93 lines
2.5 KiB
C++
/*
|
||
* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
|
||
*
|
||
* SPDX-License-Identifier: BSD-2-Clause
|
||
*/
|
||
|
||
#include <AK/StringBuilder.h>
|
||
#include <AK/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(AK::URL { url }.to_string());
|
||
|
||
// 3. Remove store[url string].
|
||
store.remove(url_string);
|
||
return {};
|
||
}
|
||
|
||
}
|