11 class HTTPInput : public Input {
13 HTTPInput(const std::string &stream_id, const std::string &url);
15 // Serialization/deserialization.
16 HTTPInput(const InputProto &serialized);
17 virtual InputProto serialize() const;
19 virtual void close_socket();
21 virtual std::string get_url() const { return url; }
24 // Actually does the download.
25 virtual void do_work();
27 // Open a socket that connects to the given host and port. Does DNS resolving.
28 int lookup_and_connect(const std::string &host, const std::string &port);
30 // Parses a HTTP response. Returns false if it not a 200.
31 bool parse_response(const std::string &response);
33 // Stores the given data, looks for Metacube blocks (skipping data if needed),
34 // and calls process_block() for each one.
35 void process_data(char *ptr, size_t bytes);
37 // Drops <num_bytes> bytes from the head of <pending_data>,
38 // and outputs a warning.
39 void drop_pending_data(size_t num_bytes);
46 CLOSING_SOCKET, // Due to error.
50 std::string stream_id;
52 // The URL and its parsed components.
54 std::string host, port, path;
56 // The HTTP request, with headers and all.
57 // Only relevant for SENDING_REQUEST.
60 // How many bytes we've sent of the request so far.
61 // Only relevant for SENDING_REQUEST.
62 size_t request_bytes_sent;
64 // The HTTP response we've received so far. Only relevant for RECEIVING_HEADER.
67 // The HTTP respones headers we want to give clients for this input.
68 std::string http_header;
70 // Data we have received but not fully processed yet.
71 std::vector<char> pending_data;
73 // If <pending_data> starts with a Metacube header,
75 bool has_metacube_header;
77 // The socket we are downloading on (or -1).
81 #endif // !defined(_HTTPINPUT_H)