Chilkat Examples

ChilkatHOME.NET Core C#Android™AutoItCC#C++Chilkat2-PythonCkPythonClassic ASPDataFlexDelphi ActiveXDelphi DLLGoJavaLianjaMono C#Node.jsObjective-CPHP ActiveXPHP ExtensionPerlPowerBuilderPowerShellPureBasicRubySQL ServerSwift 2Swift 3,4,5...TclUnicode CUnicode C++VB.NETVBScriptVisual Basic 6.0Visual FoxProXojo Plugin

Tcl Examples

Web API Categories

ASN.1
AWS KMS
AWS Misc
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Key Vault
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Code Signing
Compression
DKIM / DomainKey
DNS
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
EBICS
ECC
Ed25519
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
GMail SMTP/IMAP/POP
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text
HTTP

HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
MS Storage Providers
Microsoft Graph
Misc
NTLM
OAuth1
OAuth2
OIDC
Office365
OneDrive
OpenSSL
Outlook
Outlook Calendar
Outlook Contact
PDF Signatures
PEM
PFX/P12
PKCS11
POP3
PRNG
REST
REST Misc
RSA
SCP
SCard
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
ScMinidriver
SharePoint
SharePoint Online
Signing in the Cloud
Socket/SSL/TLS
Spider
Stream
Tar Archive
ULID/UUID
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(Tcl) SSL Server Example

Demonstrates how to create an SSL socket for accepting connections. This example is *very* simple in that it will create an SSL socket for accepting a single connection. It will read a message from the client, send a reply, and exit.

Chilkat Tcl Extension Downloads

Chilkat Tcl Extension Downloads

load ./chilkat.dll

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

set listenSslSocket [new_CkSocket]

# An SSL server needs a digital certificate.  This example loads it from a PFX file.

# Create an instance of a certificate store object, load a PFX file,
# locate the certificate we need, and use it.
# (a PFX file may contain more than one certificate.)
set certStore [new_CkCertStore]

# The 1st argument is the filename, the 2nd arg is the 
# PFX file's password:
set success [CkCertStore_LoadPfxFile $certStore "chilkat.pfx" "test"]
if {$success != 1} then {
    puts [CkCertStore_lastErrorText $certStore]
    delete_CkSocket $listenSslSocket
    delete_CkCertStore $certStore
    exit
}

# Find the certificate to be used for SSL:
# cert is a CkCert

set cert [CkCertStore_FindCertBySubject $certStore "Chilkat Software, Inc."]
if {[CkCertStore_get_LastMethodSuccess $certStore] == 0} then {
    puts [CkCertStore_lastErrorText $certStore]
    delete_CkSocket $listenSslSocket
    delete_CkCertStore $certStore
    exit
}

# Use the certificate:
set success [CkSocket_InitSslServer $listenSslSocket $cert]
if {$success != 1} then {
    delete_CkCert $cert

    puts [CkSocket_lastErrorText $listenSslSocket]
    delete_CkSocket $listenSslSocket
    delete_CkCertStore $certStore
    exit
}

delete_CkCert $cert

# Bind and listen on a port:
set myPort 8123
# Allow for a max of 5 queued connect requests.
set backLog 5
set success [CkSocket_BindAndListen $listenSslSocket $myPort $backLog]
if {$success != 1} then {
    puts [CkSocket_lastErrorText $listenSslSocket]
    delete_CkSocket $listenSslSocket
    delete_CkCertStore $certStore
    exit
}

# If accepting an SSL/TLS connection, the SSL handshake is part of the connection
# establishment process. This involves a few back-and-forth messages between the 
# client and server to establish algorithms and a shared key to create the secure 
# channel. The sending and receiving of these messages are governed by the 
# MaxReadIdleMs and MaxSendIdleMs properties. If these properties are set to 0 
# (and this is the default unless changed by your application), then the 
# AcceptNextConnection can hang indefinitely during the SSL handshake process. 
# Make sure these properties are set to appropriate values before calling AcceptNextConnection.

# Set a 10 second max for waiting to read/write.  This is for the SSL/TLS handshake establishment.
CkSocket_put_MaxReadIdleMs $listenSslSocket 10000
CkSocket_put_MaxSendIdleMs $listenSslSocket 10000

# Accept a single client connection and establish the secure SSL/TLS channel:
# clientSock is a CkSocket

set maxWaitMillisec 20000
set clientSock [CkSocket_AcceptNextConnection $listenSslSocket $maxWaitMillisec]
if {[CkSocket_get_LastMethodSuccess $listenSslSocket] == 0} then {
    puts [CkSocket_lastErrorText $listenSslSocket]
    delete_CkSocket $listenSslSocket
    delete_CkCertStore $certStore
    exit
}

# The client (in this example) is going to send a "Hello Server! -EOM-" 
# message.  Read it:
set receivedMsg [CkSocket_receiveUntilMatch $clientSock "-EOM-"]
if {[CkSocket_get_LastMethodSuccess $clientSock] != 1} then {
    puts [CkSocket_lastErrorText $clientSock]
    delete_CkSocket $listenSslSocket
    delete_CkCertStore $certStore
    exit
}

puts "$receivedMsg"

# Send a "Hello Client! -EOM-" message:
set success [CkSocket_SendString $clientSock "Hello Client! -EOM-"]
if {$success != 1} then {
    puts [CkSocket_lastErrorText $clientSock]
    delete_CkSocket $listenSslSocket
    delete_CkCertStore $certStore
    exit
}

# Close the connection with the client
# Wait a max of 20 seconds (20000 millsec)
set success [CkSocket_Close $clientSock 20000]

delete_CkSocket $clientSock


delete_CkSocket $listenSslSocket
delete_CkCertStore $certStore

 

© 2000-2024 Chilkat Software, Inc. All Rights Reserved.