12 class HTTPInput : public Input {
14 HTTPInput(const std::string &stream_id, const std::string &url);
16 // Serialization/deserialization.
17 HTTPInput(const InputProto &serialized);
18 virtual InputProto serialize() const;
20 virtual void close_socket();
22 virtual std::string get_url() const { return url; }
25 // Actually does the download.
26 virtual void do_work();
28 // Open a socket that connects to the given host and port. Does DNS resolving.
29 int lookup_and_connect(const std::string &host, const std::string &port);
31 // Parses a HTTP response. Returns false if it not a 200.
32 bool parse_response(const std::string &response);
34 // Stores the given data, looks for Metacube blocks (skipping data if needed),
35 // and calls process_block() for each one.
36 void process_data(char *ptr, size_t bytes);
38 // Drops <num_bytes> bytes from the head of <pending_data>,
39 // and outputs a warning.
40 void drop_pending_data(size_t num_bytes);
47 CLOSING_SOCKET, // Due to error.
51 std::string stream_id;
53 // The URL and its parsed components.
55 std::string host, port, path;
57 // The HTTP request, with headers and all.
58 // Only relevant for SENDING_REQUEST.
61 // How many bytes we've sent of the request so far.
62 // Only relevant for SENDING_REQUEST.
63 size_t request_bytes_sent;
65 // The HTTP response we've received so far. Only relevant for RECEIVING_HEADER.
68 // The HTTP respones headers we want to give clients for this input.
69 std::string http_header;
71 // Data we have received but not fully processed yet.
72 std::vector<char> pending_data;
74 // If <pending_data> starts with a Metacube header,
76 bool has_metacube_header;
78 // The socket we are downloading on (or -1).
82 #endif // !defined(_HTTPINPUT_H)