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

Lianja 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
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

 

 

 

(Lianja) WebSocket Connect through SOCKS Proxy

This example shows how to establish a WebSocket connection through a SOCKS proxy.

Chilkat Lianja Extension Download

Chilkat Lianja Extension

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

//  --------------------------------------------------
//  This example borrows the code from the REST using SOCKS Proxy example.
//  We first use the Chilkat Socket object to establish a connection to the WebSocket server through a SOCKS proxy.
//  Next, the Rest object uses the Socket object for its connection.
//  Finally, the WebSocket object uses the Rest object for its connection.
// 

loRest = createobject("CkRest")
loSocket = createobject("CkSocket")

//  Set the SOCKS proxy domain or IP address, port, and SOCKS version number (4 or 5)
loSocket.SocksHostname = "192.168.1.79"
loSocket.HttpProxyPort = 1080
loSocket.SocksVersion = 5

//  Provide authentication to the SOCKS proxy, if needed.
loSocket.SocksUsername = "SOCKS_PROXY_LOGIN"
loSocket.SocksPassword = "SOCKS_PROXY_PASSWORD"

//  Connect to the websocket server through the HTTP proxy.
llBTls = .F.
lnPort = 80
lnMaxWaitMs = 5000
llSuccess = loSocket.Connect("some-websocket-server.com",lnPort,llBTls,lnMaxWaitMs)
if (llSuccess <> .T.) then
    ? "Connect Failure Error Code: " + str(loSocket.ConnectFailReason)
    ? loSocket.LastErrorText
    release loRest
    release loSocket
    return
endif

//  Tell the Rest object to use the connected socket.
llSuccess = loRest.UseConnection(loSocket,.T.)
if (llSuccess <> .T.) then
    ? loRest.LastErrorText
    release loRest
    release loSocket
    return
endif

loWs = createobject("CkWebSocket")

//  Tell the WebSocket to use this connection.
llSuccess = loWs.UseConnection(loRest)
if (llSuccess <> .T.) then
    ? loWs.LastErrorText
    release loRest
    release loSocket
    release loWs
    return
endif

//  Add the standard WebSocket open handshake headers that will be needed.
//  (This adds the required HTTP request headers to the rest object.)
loWs.AddClientHeaders()

//  Add any additional headers that might be desired.
//  Two common WebSocketSpecific headers are "Sec-WebSocket-Protocol" and "Origin".
loRest.AddHeader("Sec-WebSocket-Protocol","x-some-websocket-subprotocol")
loRest.AddHeader("Origin","http://some-websocket-server.com")

//  Do the open handshake.
lcResponseBody = loRest.FullRequestNoBody("GET","/something")
if (loRest.LastMethodSuccess <> .T.) then
    ? loRest.LastErrorText
    release loRest
    release loSocket
    release loWs
    return
endif

//  If successful, the HTTP response status code should be 101,
//  and the response body will be empty. (If it failed, we'll have a look
//  at the response body..)
lnStatusCode = loRest.ResponseStatusCode
? "Response status code: " + str(lnStatusCode)

if (lnStatusCode <> 101) then
    ? lcResponseBody
    ? "-- Failed because of unexpected response status code."
    release loRest
    release loSocket
    release loWs
    return
endif

//  We have the expected 101 response, so let's now validate the
//  contents of the response, such as the value sent by the server in the
//  Sec-WebSocket-Accept header.
llSuccess = loWs.ValidateServerHandshake()
if (llSuccess <> .T.) then
    ? loWs.LastErrorText
    release loRest
    release loSocket
    release loWs
    return
endif

? "WebSocket connection successful."

//  The application may now begin sending and receiving frames on the WebSocket connection.
//  (At this point, we're done with the rest and socket objects...)

? "Success."


release loRest
release loSocket
release loWs

 

© 2000-2023 Chilkat Software, Inc. All Rights Reserved.