PowerShell

Debugging with Socket Session Logging

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Debugging with socket session logging.

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 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.

PowerShell

Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$socket = New-Object Chilkat.Socket

# Enable session logging:
$socket.KeepSessionLog = $true
$socket.SessionLogEncoding = "esc"

# To demonstrate session logging, we'll connect to an
# HTTP server and download the HTTP response header:
$ssl = $false
$maxWaitMillisec = 20000
$success = $socket.Connect("www.chilkatsoft.com",80,$ssl,$maxWaitMillisec)
if ($success -ne $true) {
    $($socket.LastErrorText)
    exit
}

# Set maximum timeouts for reading an writing (in millisec)
$socket.MaxReadIdleMs = 10000
$socket.MaxSendIdleMs = 10000

# The socket component includes a BuildHttpGetRequest
# method for convenience. Build a GET and send it to 
# the web server:

$httpGet = $socket.BuildHttpGetRequest("http://www.chilkatsoft.com/")

# Send it...
$success = $socket.SendString($httpGet)
if ($success -ne $true) {
    $($socket.LastErrorText)
    exit
}

# Read the response up to the first double CRLF:
$httpHeader = $socket.ReceiveUntilMatch("`r`n`r`n")
if ($socket.LastMethodSuccess -ne $true) {
    $($socket.LastErrorText)
    exit
}

# Close the connection with the server
# Wait a max of 20 seconds (20000 millsec)
$success = $socket.Close(20000)

# Display the session log:
$($socket.SessionLog)

# Show the HTTP response header:
$($httpHeader)