The WebSocket protocol allows 0-size frames so a returned lenth of
0 does not only mean an issue but it's perfectly expected.
This is also required by WebSocket specification.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
Allows to specify and get frame type.
Type and flags are returned calling websocket_read and returned
calling websocket_write or websocket_writev.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
Not strictly needed, client can work even without specifying
that.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
Websocket implementations are required to implement such messages.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
Quite rare case, can only happen with congestion, buffers very low
and some space left in the former packet.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
Ignore spaces before "binary" value.
HTTP allows space before and after the value although usually
browsers implementation start the value with a single ASCII space.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
Currently code don't handle if system can't sent the
header in a single write command.
Don't cause abort but just close the connection.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
"len" is not always the full remainder (consider the case when
we are writing a partial frame).
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
These were introduced moving code around.
No more reason to copy, just use directly structure fields.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
"type" is just 8 bit.
"frame_ready" and "masked" as booleans.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
Move websocket structure declarations to C file.
Make some functions static as now not used externally.
Introduce a websocket_free function for symmetry.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
Less coupling. This is a preparation for next patch.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
Intention is to make private in websockets.c and reduce
changes in red-stream.c
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
Use g_memdup instead of manual copy.
Trim the original iov if necessary.
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Jeremy White <jwhite@codeweavers.com>
We do this by auto detecting the inbound http(s) 'GET' and probing
for a well formulated WebSocket binary connection, such as used
by the spice-html5 client. If detected, we implement a set of
cover functions that abstract the read/write/writev functions,
in a fashion similar to the SASL implementation.
This includes a limited implementation of the WebSocket protocol,
sufficient for our purposes.
Signed-off-by: Jeremy White <jwhite@codeweavers.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>
