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UniSet project repositories
uniset2
Commits
44d7bfad
Commit
44d7bfad
authored
Mar 13, 2021
by
Pavel Vainerman
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[uwebsocket]: read buffer increased to 32kB (by session),
close socket processing, added error "payload to big"
parent
3c41a56e
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Showing
2 changed files
with
75 additions
and
21 deletions
+75
-21
UWebSocketGate.cc
extensions/UWebSocketGate/UWebSocketGate.cc
+62
-20
UWebSocketGate.h
extensions/UWebSocketGate/UWebSocketGate.h
+13
-1
No files found.
extensions/UWebSocketGate/UWebSocketGate.cc
View file @
44d7bfad
...
...
@@ -217,6 +217,16 @@ Poco::JSON::Object::Ptr UWebSocketGate::to_json( const SensorMessage* sm, const
return
json
;
}
//--------------------------------------------------------------------------------------------
Poco
::
JSON
::
Object
::
Ptr
UWebSocketGate
::
error_to_json
(
const
std
::
string
&
err
)
{
Poco
::
JSON
::
Object
::
Ptr
json
=
new
Poco
::
JSON
::
Object
();
json
->
set
(
"type"
,
"Error"
);
json
->
set
(
"message"
,
err
);
return
json
;
}
//--------------------------------------------------------------------------------------------
std
::
shared_ptr
<
UWebSocketGate
>
UWebSocketGate
::
init_wsgate
(
int
argc
,
const
char
*
const
*
argv
,
const
std
::
string
&
prefix
)
{
string
name
=
uniset
::
getArgParam
(
"--"
+
prefix
+
"name"
,
argc
,
argv
,
"UWebSocketGate"
);
...
...
@@ -548,21 +558,6 @@ std::shared_ptr<UWebSocketGate::UWebSocket> UWebSocketGate::newWebSocket( Poco::
auto
idlist
=
uniset
::
explode
(
slist
);
// if( idlist.empty() )
// {
// resp->setStatus(HTTPResponse::HTTP_BAD_REQUEST);
// resp->setContentType("text/html");
// resp->setStatusAndReason(HTTPResponse::HTTP_BAD_REQUEST);
// resp->setContentLength(0);
// std::ostream& err = resp->send();
// err << "Error: no list of sensors for '" << slist << "'. Use: http://host:port/wsgate/?s1,s2,s3";
// err.flush();
// mywarn << myname << "(newWebSocket): error: no list of sensors for '" << slist << "'" << endl;
// return nullptr;
// }
{
uniset_rwmutex_wrlock
lock
(
wsocksMutex
);
ws
=
make_shared
<
UWebSocket
>
(
req
,
resp
);
...
...
@@ -602,7 +597,7 @@ void UWebSocketGate::delWebSocket(std::shared_ptr<UWebSocket>& ws )
}
}
// -----------------------------------------------------------------------------
const
std
::
string
UWebSocketGate
::
UWebSocket
::
ping_str
=
{
"{
\"
data
\"
: [{
\"
type
\"
:
\"
Ping
\"
}]}"
}
;
const
std
::
string
UWebSocketGate
::
UWebSocket
::
ping_str
=
"{
\"
data
\"
: [{
\"
type
\"
:
\"
Ping
\"
}]}"
;
UWebSocketGate
::
UWebSocket
::
UWebSocket
(
Poco
::
Net
::
HTTPServerRequest
*
_req
,
Poco
::
Net
::
HTTPServerResponse
*
_resp
)
:
...
...
@@ -610,6 +605,7 @@ UWebSocketGate::UWebSocket::UWebSocket(Poco::Net::HTTPServerRequest* _req,
req
(
_req
),
resp
(
_resp
)
{
memset
(
rbuf
,
0
,
sizeof
(
rbuf
));
setBlocking
(
false
);
cancelled
=
false
;
...
...
@@ -623,7 +619,8 @@ UWebSocketGate::UWebSocket::UWebSocket(Poco::Net::HTTPServerRequest* _req,
maxsize
=
maxsend
*
10
;
// пока так
setReceiveTimeout
(
uniset
::
PassiveTimer
::
millisecToPoco
(
recvTimeout
));
setReceiveTimeout
(
uniset
::
PassiveTimer
::
millisecToPoco
(
recvTimeout
));
setMaxPayloadSize
(
sizeof
(
rbuf
));
}
// -----------------------------------------------------------------------------
UWebSocketGate
::
UWebSocket
::~
UWebSocket
()
...
...
@@ -740,16 +737,29 @@ void UWebSocketGate::UWebSocket::read( ev::io& io, int revents )
return
;
int
n
=
receiveFrame
(
rbuf
,
sizeof
(
rbuf
),
flags
);
// int n = receiveBytes(rbuf, sizeof(rbuf));
if
(
n
<=
0
)
return
;
const
std
::
string
cmd
(
rbuf
,
n
);
if
(
(
flags
&
WebSocket
::
FRAME_OP_BITMASK
)
==
WebSocket
::
FRAME_OP_PING
)
{
sendFrame
(
rbuf
,
n
,
WebSocket
::
FRAME_OP_PONG
);
return
;
}
if
(
cmd
==
ping_str
)
if
(
(
flags
&
WebSocket
::
FRAME_OP_BITMASK
)
==
WebSocket
::
FRAME_OP_CLOSE
)
return
;
if
(
n
==
sizeof
(
rbuf
)
)
{
ostringstream
err
;
err
<<
"Payload too big. Must be < "
<<
sizeof
(
rbuf
)
<<
" bytes"
;
sendError
(
err
.
str
());
return
;
}
const
std
::
string
cmd
(
rbuf
,
n
);
onCommand
(
cmd
);
// откладываем ping, т.к. что-то в канале и так было
...
...
@@ -785,6 +795,17 @@ void UWebSocketGate::UWebSocket::read( ev::io& io, int revents )
<<
" error: "
<<
ex
.
displayText
()
<<
endl
;
}
catch
(
Poco
::
TimeoutException
&
ex
)
{
// it is ok
}
catch
(
std
::
exception
&
ex
)
{
mylog3
<<
"(websocket): std::exception: "
<<
req
->
clientAddress
().
toString
()
<<
" error: "
<<
ex
.
what
()
<<
endl
;
}
}
// -----------------------------------------------------------------------------
void
UWebSocketGate
::
UWebSocket
::
ask
(
uniset
::
ObjectId
id
)
...
...
@@ -931,6 +952,20 @@ void UWebSocketGate::UWebSocket::sendResponse( sinfo& si )
ioping
.
stop
();
}
// -----------------------------------------------------------------------------
void
UWebSocketGate
::
UWebSocket
::
sendError
(
const
std
::
string
&
msg
)
{
if
(
jbuf
.
size
()
>
maxsize
)
{
mywarn
<<
req
->
clientAddress
().
toString
()
<<
" lost messages..."
<<
endl
;
return
;
}
jbuf
.
emplace
(
UWebSocketGate
::
error_to_json
(
msg
));
if
(
ioping
.
is_active
()
)
ioping
.
stop
();
}
// -----------------------------------------------------------------------------
void
UWebSocketGate
::
UWebSocket
::
onCommand
(
const
string
&
cmdtxt
)
{
if
(
cmdtxt
.
size
()
<
5
)
...
...
@@ -1110,6 +1145,13 @@ void UWebSocketGate::UWebSocket::write()
<<
" error: "
<<
ex
.
displayText
()
<<
endl
;
}
catch
(
std
::
exception
&
ex
)
{
mylog3
<<
"(websocket): std::exception: "
<<
req
->
clientAddress
().
toString
()
<<
" error: "
<<
ex
.
what
()
<<
endl
;
}
term
();
}
...
...
extensions/UWebSocketGate/UWebSocketGate.h
View file @
44d7bfad
...
...
@@ -167,6 +167,16 @@ namespace uniset
- "ask:id1,id2,name3,..." - подписаться на уведомления об изменении датчиков (sensorInfo)
- "del:id1,id2,name3,..." - отказаться от уведомления об изменении датчиков
- "get:id1,id2,name3,..." - получить текущее значение датчиков (разовое сообщение ShortSensorInfo)
Если длинна команды превышает допустимое значение, то возвращается ошибка
\code
{
"data": [
{"type": "Error", "message": "Payload to big"}
]
}
\endcode
*/
class
UWebSocketGate
:
public
UniSetObject
,
...
...
@@ -246,6 +256,7 @@ namespace uniset
size_t
wsMaxCmd
=
{
100
};
static
Poco
::
JSON
::
Object
::
Ptr
to_json
(
const
uniset
::
SensorMessage
*
sm
,
const
std
::
string
&
err
);
static
Poco
::
JSON
::
Object
::
Ptr
error_to_json
(
const
std
::
string
&
err
);
/*! класс реализует работу с websocket через eventloop
* Из-за того, что поступление логов может быть достаточно быстрым
...
...
@@ -305,6 +316,7 @@ namespace uniset
void
sendResponse
(
sinfo
&
si
);
void
sendShortResponse
(
sinfo
&
si
);
void
onCommand
(
const
std
::
string
&
cmd
);
void
sendError
(
const
std
::
string
&
message
);
ev
::
timer
iosend
;
double
send_sec
=
{
0
.
5
};
...
...
@@ -316,7 +328,7 @@ namespace uniset
static
const
std
::
string
ping_str
;
ev
::
io
iorecv
;
char
rbuf
[
512
];
//! \todo сделать настраиваемым или применить Poco::FIFOBuffer
char
rbuf
[
32
*
1024
];
//! \todo сделать настраиваемым или применить Poco::FIFOBuffer
timeout_t
recvTimeout
=
{
200
};
// msec
std
::
shared_ptr
<
ev
::
async
>
cmdsignal
;
...
...
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