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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_EVENTSOURCE_EVENT_SOURCE_PARSER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_EVENTSOURCE_EVENT_SOURCE_PARSER_H_
#include <memory>
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/member.h"
#include "third_party/blink/renderer/platform/wtf/text/atomic_string.h"
#include "third_party/blink/renderer/platform/wtf/text/text_codec.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
namespace blink {
class MODULES_EXPORT EventSourceParser final
: public GarbageCollected<EventSourceParser> {
public:
class MODULES_EXPORT Client : public GarbageCollectedMixin {
public:
virtual ~Client() = default;
virtual void OnMessageEvent(const AtomicString& type,
const String& data,
const AtomicString& last_event_id) = 0;
virtual void OnReconnectionTimeSet(uint64_t reconnection_time) = 0;
void Trace(Visitor* visitor) const override {}
};
EventSourceParser(const AtomicString& last_event_id, Client*);
void AddBytes(base::span<const char>);
const AtomicString& LastEventId() const { return last_event_id_; }
// Stop parsing. This can be called from Client::onMessageEvent.
void Stop() { is_stopped_ = true; }
void Trace(Visitor*) const;
private:
void ParseLine();
String FromUTF8(base::span<const char> bytes);
Vector<char> line_;
AtomicString event_type_;
Vector<char> data_;
// This variable corresponds to "last event ID buffer" in the spec. The
// value can be discarded when a connection is disconnected while
// parsing an event.
AtomicString id_;
// This variable corresponds to "last event ID string" in the spec.
AtomicString last_event_id_;
Member<Client> client_;
std::unique_ptr<TextCodec> codec_;
bool is_recognizing_crlf_ = false;
bool is_recognizing_bom_ = true;
bool is_stopped_ = false;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_EVENTSOURCE_EVENT_SOURCE_PARSER_H_
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