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+/*
+ * Copyright (c) 2020, The SerenityOS developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/FileStream.h>
+#include <AK/HashMap.h>
+#include <AK/Optional.h>
+#include <LibCore/NetworkJob.h>
+#include <LibCore/TCPSocket.h>
+#include <LibHTTP/HttpRequest.h>
+#include <LibHTTP/HttpResponse.h>
+
+namespace HTTP {
+
+class Job : public Core::NetworkJob {
+public:
+ explicit Job(const HttpRequest&, OutputStream&);
+ virtual ~Job() override;
+
+ virtual void start() override = 0;
+ virtual void shutdown() override = 0;
+
+ HttpResponse* response() { return static_cast<HttpResponse*>(Core::NetworkJob::response()); }
+ const HttpResponse* response() const { return static_cast<const HttpResponse*>(Core::NetworkJob::response()); }
+
+protected:
+ void finish_up();
+ void on_socket_connected();
+ void flush_received_buffers();
+ virtual void register_on_ready_to_read(Function<void()>) = 0;
+ virtual void register_on_ready_to_write(Function<void()>) = 0;
+ virtual bool can_read_line() const = 0;
+ virtual String read_line(size_t) = 0;
+ virtual bool can_read() const = 0;
+ virtual ByteBuffer receive(size_t) = 0;
+ virtual bool eof() const = 0;
+ virtual bool write(ReadonlyBytes) = 0;
+ virtual bool is_established() const = 0;
+ virtual bool should_fail_on_empty_payload() const { return true; }
+ virtual void read_while_data_available(Function<IterationDecision()> read) { read(); };
+
+ enum class State {
+ InStatus,
+ InHeaders,
+ InBody,
+ Trailers,
+ Finished,
+ };
+
+ HttpRequest m_request;
+ State m_state { State::InStatus };
+ int m_code { -1 };
+ HashMap<String, String, CaseInsensitiveStringTraits> m_headers;
+ Vector<ByteBuffer, 2> m_received_buffers;
+ size_t m_buffered_size { 0 };
+ size_t m_received_size { 0 };
+ bool m_sent_data { 0 };
+ Optional<ssize_t> m_current_chunk_remaining_size;
+ Optional<size_t> m_current_chunk_total_size;
+ bool m_can_stream_response { true };
+};
+
+}