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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/credentialmanagement/digital_credential.h"
#include "third_party/blink/renderer/bindings/core/v8/script_value.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_object_builder.h"
#include "third_party/blink/renderer/platform/wtf/text/ascii_ctype.h"
#include "third_party/blink/renderer/platform/wtf/text/character_names.h"
namespace blink {
namespace {
constexpr char kDigitalCredentialType[] = "digital";
} // anonymous namespace
DigitalCredential* DigitalCredential::Create(const String& protocol,
ScriptObject data) {
return MakeGarbageCollected<DigitalCredential>(protocol, data);
}
DigitalCredential::DigitalCredential(const String& protocol, ScriptObject data)
: Credential(/* id = */ "", kDigitalCredentialType),
protocol_(protocol),
data_(data) {}
bool DigitalCredential::IsDigitalCredential() const {
return true;
}
void DigitalCredential::Trace(Visitor* visitor) const {
visitor->Trace(data_);
Credential::Trace(visitor);
}
// static
bool DigitalCredential::userAgentAllowsProtocol(const String& protocol) {
// Since Chromium allows all protocols to reach the underlying platform, this
// method only validates the protocol identifier, but doesn't do any further
// checks. In other words, any protocol with a valid identifier is allowed.
if (protocol.empty()) {
return false;
}
bool has_lower_alpha = false;
for (unsigned i = 0; i < protocol.length(); ++i) {
// protocol[i] returns a UChar (16-bit) to handle all cases safely.
UChar c = protocol[i];
if (IsASCIILower(c)) {
has_lower_alpha = true;
} else if (!IsASCIIDigit(c) && c != uchar::kHyphenMinus) {
return false;
}
}
// Must contain at least one lowercase letter.
return has_lower_alpha;
}
ScriptObject DigitalCredential::toJSON(ScriptState* script_state) const {
V8ObjectBuilder builder(script_state);
builder.AddString("protocol", protocol_);
builder.AddV8Value("data", data_.V8Object());
return builder.ToScriptObject();
}
} // namespace blink
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