X-Git-Url: https://git.sesse.net/?p=cubemap;a=blobdiff_plain;f=httpinput.h;fp=httpinput.h;h=894d8e946a3235b3a23fb32382f4364b38e2187f;hp=0000000000000000000000000000000000000000;hb=239a9eab1a2468b401183745a24b2fbd590a6998;hpb=684496ba9c7def1421d045435b6b92e80bc54c74

diff --git a/httpinput.h b/httpinput.h
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+++ b/httpinput.h
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+#ifndef _HTTPINPUT_H
+#define _HTTPINPUT_H 1
+
+#include <vector>
+#include <string>
+
+#include "input.h"
+
+class InputProto;
+
+class HTTPInput : public Input {
+public:
+	HTTPInput(const std::string &stream_id, const std::string &url);
+
+	// Serialization/deserialization.
+	HTTPInput(const InputProto &serialized);
+	virtual InputProto serialize() const;
+
+	virtual std::string get_url() const { return url; }
+
+private:
+	// Actually does the download.
+	virtual void do_work();
+	
+	// Open a socket that connects to the given host and port. Does DNS resolving.
+	int lookup_and_connect(const std::string &host, const std::string &port);
+
+	// Parses a HTTP response. Returns false if it not a 200.
+	bool parse_response(const std::string &response);
+
+	// Stores the given data, looks for Metacube blocks (skipping data if needed),
+	// and calls process_block() for each one.
+	void process_data(char *ptr, size_t bytes);
+
+	// Drops <num_bytes> bytes from the head of <pending_data>,
+	// and outputs a warning.
+	void drop_pending_data(size_t num_bytes);
+
+	enum State {
+		NOT_CONNECTED,
+		SENDING_REQUEST,
+		RECEIVING_HEADER,
+		RECEIVING_DATA,
+		CLOSING_SOCKET,  // Due to error.
+	};
+	State state;
+
+	std::string stream_id;
+
+	// The URL and its parsed components.
+	std::string url;
+	std::string host, port, path;
+
+	// The HTTP request, with headers and all.
+	// Only relevant for SENDING_REQUEST.
+	std::string request;
+
+	// How many bytes we've sent of the request so far.
+	// Only relevant for SENDING_REQUEST.
+	size_t request_bytes_sent;
+
+	// The HTTP response we've received so far. Only relevant for RECEIVING_HEADER.
+	std::string response;
+
+	// The HTTP respones headers we want to give clients for this input.
+	std::string http_header;
+
+	// Data we have received but not fully processed yet.
+	std::vector<char> pending_data;
+
+	// If <pending_data> starts with a Metacube header,
+	// this is true.
+	bool has_metacube_header;
+
+	// The socket we are downloading on (or -1).
+	int sock;	
+};
+
+#endif  // !defined(_HTTPINPUT_H)