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#ifndef TRANSPORT_BASE_HH
#define TRANSPORT_BASE_HH
#include "buffer.hh"
#include "transport.hh"
#include <chrono>
#include <deque>
class FileOpener;
class TransportBase : public Transport {
public:
~TransportBase() override;
std::unique_ptr<Response> create_data(
uint16_t code, std::string data) override;
std::unique_ptr<Response> create_file(
uint16_t code, std::filesystem::path data) override;
std::unique_ptr<Response> create_exif_thumbnail(
uint16_t code, std::filesystem::path data) override;
void add_client(unique_fd&& fd) override;
virtual bool setup(Logger* logger, Config const* config);
protected:
struct ClientResponse {
std::unique_ptr<Response> response_;
std::unique_ptr<Input> content_;
ClientResponse() = default;
explicit ClientResponse(std::unique_ptr<Response> response)
: response_(std::move(response)) {}
};
struct Client {
size_t const index_;
unique_fd fd_;
std::unique_ptr<Buffer> in_;
std::unique_ptr<Buffer> out_;
std::unordered_map<uint32_t, ClientResponse> responses_;
bool in_closed_{false};
size_t expect_in_{1};
uint32_t timeout_{0};
std::chrono::steady_clock::time_point last_event_;
explicit Client(size_t index)
: index_(index) {}
};
class UrlRequest : public Request {
public:
std::string_view path() const override;
std::string_view query(std::string_view name) const override;
protected:
virtual std::string_view url() const = 0;
private:
void split_url_if_needed() const;
std::string mutable path_;
std::unordered_map<std::string, std::string> mutable query_;
};
TransportBase(std::shared_ptr<Logger> logger, std::shared_ptr<Looper> looper,
std::shared_ptr<TaskRunner> runner, Handler* handler);
virtual uint64_t default_client_input_buffer_size() const;
virtual uint64_t default_client_output_buffer_size() const;
virtual void client_new(Client* client);
virtual void client_event(Client* client, uint8_t event);
virtual void client_abort(Client* client);
virtual bool client_flush(Client* client);
virtual bool client_handle(Client* client) = 0;
virtual void client_timeout(Client* client, uint32_t id);
virtual bool client_response(Client* client, uint32_t id,
std::unique_ptr<Response> response);
virtual bool client_response_header(Client* client, uint32_t id);
virtual bool client_response_content(Client* client, uint32_t id);
virtual bool client_response_footer(Client* client, uint32_t id);
virtual bool client_response_end(Client* client, uint32_t id);
void client_update_event(Client* client);
bool client_request(Client* client, uint32_t id,
std::unique_ptr<Request> request);
bool client_response_content(Client* client, uint32_t id, Buffer* out);
size_t clients() const { return client_.size(); }
std::shared_ptr<Logger> logger_;
std::shared_ptr<Looper> looper_;
std::shared_ptr<TaskRunner> runner_;
Handler* const handler_;
std::shared_ptr<FileOpener> file_opener_;
private:
void client_response_content_wait(Client* client, uint32_t response_id);
void client_response_open(Client* client, uint32_t response_id,
std::unique_ptr<Input> input);
std::vector<Client> client_;
bool client_full_{false};
size_t next_avail_client_{0};
std::vector<unique_fd> client_wait_;
double client_timeout_;
};
#endif // TRANSPORT_BASE_HH
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