PureBasic
PureBasic
Demonstrates KeepSessionLog and SessionLog
The Chilkat Socket component provides properties for keeping a session log making it possible to see the exact bytes received and sent on a TCP/IP or SSL/TLS connection. To enable session logging, set the KeepSessionLog property = _TRUE_. The SessionLogEncoding property controls how binary, non-printable bytes are represented in the log. There are two possible settings: Possible values are "esc" and "hex". The default value is "esc".When set to "hex", the bytes are encoded as a hexidecimalized string. The "esc" encoding is a C-string like encoding, and is more compact than hex if most of the data to be logged is text. Printable us-ascii chars are unmodified. Common "C" control chars are represented as "\r", "\n", "\t", etc. Non-printable and byte values greater than 0x80 are escaped using a backslash and hex encoding: \xHH. Certain printable chars are backslashed: SPACE, double-quote, single-quote, etc.
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IncludeFile "CkBinData.pb"
IncludeFile "CkSocket.pb"
Procedure ChilkatExample()
success.i = 0
; This example assumes the Chilkat Socket API to have been previously unlocked.
; See Socket Unlock Sample for sample code.
socket.i = CkSocket::ckCreate()
If socket.i = 0
Debug "Failed to create object."
ProcedureReturn
EndIf
; Enable session logging:
CkSocket::setCkKeepSessionLog(socket, 1)
CkSocket::setCkSessionLogEncoding(socket, "esc")
tls.i = 1
maxWaitMillisec.i = 20000
success = CkSocket::ckConnect(socket,"www.chilkatsoft.com",443,tls,maxWaitMillisec)
If success <> 1
Debug CkSocket::ckLastErrorText(socket)
CkSocket::ckDispose(socket)
ProcedureReturn
EndIf
; Send a GET start line to the web server..
success = CkSocket::ckSendString(socket,"GET /abc123.abc123 HTTP/1.1" + Chr(13) + Chr(10))
If success <> 1
Debug CkSocket::ckLastErrorText(socket)
CkSocket::ckDispose(socket)
ProcedureReturn
EndIf
; Send some bytes that will cause an error...
binData.i = CkBinData::ckCreate()
If binData.i = 0
Debug "Failed to create object."
ProcedureReturn
EndIf
CkBinData::ckAppendEncoded(binData,"01020304","hex")
success = CkSocket::ckSendBd(socket,binData)
; Read the response up to the first double CRLF:
httpHeader.s = CkSocket::ckReceiveUntilMatch(socket,Chr(13) + Chr(10) + Chr(13) + Chr(10))
If CkSocket::ckLastMethodSuccess(socket) <> 1
Debug CkSocket::ckLastErrorText(socket)
CkSocket::ckDispose(socket)
CkBinData::ckDispose(binData)
ProcedureReturn
EndIf
; Close the connection with the server
; Wait a max of 20 seconds (20000 millsec)
CkSocket::ckClose(socket,20000)
; Display the session log:
Debug CkSocket::ckSessionLog(socket)
; The Session log will show the exact bytes sent and received.
; In this case, the session log shows:
; SendString: GET\x20/abc123.abc123\x20HTTP/1.1\r\n
;
; SendBytes: \x01\x02\x03\x04
; ReceiveUntilMatch: HTTP/1.1\x20400\x20Bad\x20Request\r\n
; Content-Type:\x20text/html;\x20charset=us-ascii\r\n
; Server:\x20Microsoft-HTTPAPI/2.0\r\n
; Date:\x20Thu,\x2027\x20Oct\x202016\x2013:16:02\x20GMT\r\n
; Connection:\x20close\r\n
; Content-Length:\x20339\r\n
; \r\n
; <!DOCTYPE\x20HTML\x20PUBLIC\x20\"-//W3C//DTD\x20HTML\x204.01//EN\"\"http://www.w
; 3.org/TR/html4/strict.dtd\">\r\n
; <HTML><HEAD><TITLE>Bad\x20Request</TITLE>\r\n
; <META\x20HTTP-EQUIV=\"Content-Type\"\x20Content=\"text/html;\x20charset=us-ascii
; \"></HEAD>\r\n
; <BODY><h2>Bad\x20Request\x20-\x20Invalid\x20Header</h2>\r\n
; <hr><p>HTTP\x20Error\x20400.\x20The\x20request\x20has\x20an\x20invalid\x20header
; \x20name.</p>\r\n
; </BODY></HTML>\r\n
;
CkSocket::ckDispose(socket)
CkBinData::ckDispose(binData)
ProcedureReturn
EndProcedure