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Introduce LOOLProtocol::getAbbreviatedFrameDump()

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Produces a human-readable logging string describing a LOOL protocol
frame. To be used for re-factoring snippets of similar code that
sometimes print also the flags, sometimes pointlessly print the
(binary) contents of a CLOSE frame (as if it was text), etc.
This commit is contained in:
Tor Lillqvist 2016-10-18 16:24:41 +03:00
parent 53b718844f
commit 24442a080c
1 changed files with 33 additions and 0 deletions
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33
loolwsd/LOOLProtocol.hpp
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@ -12,8 +12,11 @@
#include <cstring>
#include <map>
#include <sstream>
#include <string>
#include <Poco/Format.h>
#include <Poco/Net/WebSocket.h>
#include <Poco/StringTokenizer.h>
#define LOK_USE_UNSTABLE_API
@ -168,6 +171,36 @@ namespace LOOLProtocol
{
return getAbbreviatedMessage(message.data(), message.size());
}
// Return a string dump of a WebSocket frame: Its opcode, length, first line (if present),
// flags. For human-readable logging purposes. Format not guaranteed to be stable. Not to be
// inspected programmatically.
inline
std::string getAbbreviatedFrameDump(const char *message, const int length, const int flags)
{
std::ostringstream result;
switch (flags & Poco::Net::WebSocket::FRAME_OP_BITMASK)
{
#define CASE(x) case Poco::Net::WebSocket::FRAME_OP_##x: result << #x; break
CASE(CONT);
CASE(TEXT);
CASE(BINARY);
CASE(CLOSE);
CASE(PING);
CASE(PONG);
#undef CASE
default:
result << Poco::format("%#x", flags);
break;
}
result << " frame: " << length << " bytes";
if (length > 0 &&
((flags & Poco::Net::WebSocket::FRAME_OP_BITMASK) == Poco::Net::WebSocket::FRAME_OP_TEXT ||
(flags & Poco::Net::WebSocket::FRAME_OP_BITMASK) == Poco::Net::WebSocket::FRAME_OP_BINARY))
result << ": '" << getAbbreviatedMessage(message, length) << "'";
return result.str();
}
};
#endif