Perl

Duplicate Python websockets

See more WebSocket Examples

Demonstrates how to duplicate the following Python client-side websocket snippet:

async with websockets.connect('ws://192.168.1.35/websocket') as websocket:
await websocket.send("http.controller_login:username=xxx&password=xxxxx")
response = await websocket.recv()

Perl

use chilkat();

$success = 0;

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

# In Python, the following line of code does more than just connect:
# 
#      websockets.connect('ws://192.168.1.35/websocket')
# 
# It is connecting to 192.168.1.35 without using TLS.  If the URI starts with "wss://", then TLS should be used.
# But this URI begins with just "ws:/", so no TLS.

# Also, after connecting, a GET request is sent to the /websocket endpoint.
# In summary, the websockets.connect function is establishing the connection and it sends a GET request.

# First establish the connection.
# No TLS, use the default HTTP port 80.
$rest = chilkat::CkRest->new();
$success = $rest->Connect("192.168.1.35",80,0,0);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

$ws = chilkat::CkWebSocket->new();

# Tell the WebSocket to use this connection.
$success = $ws->UseConnection($rest);
if ($success != 1) {
    print $ws->lastErrorText() . "\r\n";
    exit;
}

# Add the standard WebSocket open handshake headers that will be needed.
# (This adds the required HTTP request headers to the rest object.)
$ws->AddClientHeaders();

# Now send the GET request to /websockets.
$responseBody = $rest->fullRequestNoBody("GET","/websockets");
if ($rest->get_LastMethodSuccess() != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

# 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..)
$statusCode = $rest->get_ResponseStatusCode();
print "Response status code: " . $statusCode . "\r\n";

if ($statusCode != 101) {
    print $responseBody . "\r\n";
    print "-- Failed because of unexpected response status code." . "\r\n";
    exit;
}

# We have the expected 101 response, so let's now validate the 
# contents of the response.
$success = $ws->ValidateServerHandshake();
if ($success != 1) {
    print $ws->lastErrorText() . "\r\n";
    exit;
}

print "WebSocket connection successful." . "\r\n";

# The application may now begin sending and receiving frames on the WebSocket connection.

# The 1st frame sent by the Python snippet is:
# 
#     websocket.send("http.controller_login:username=xxx&password=xxxxx")
# 

# Send the same using Chilkat, and get the response.
$finalFrame = 1;
$success = $ws->SendFrame("http.controller_login:username=xxx&password=xxxxx",$finalFrame);
if ($success != 1) {
    print $ws->lastErrorText() . "\r\n";
    exit;
}

# Read an incoming frame.
$success = $ws->ReadFrame();
if ($success != 1) {
    print "Failed to receive a frame" . "\r\n";
    print "ReadFrame fail reason = " . $ws->get_ReadFrameFailReason() . "\r\n";
    print $ws->lastErrorText() . "\r\n";
    exit;
}

# Show the string that was received.
$receivedStr = $ws->getFrameData();
print "Received: " . $receivedStr . "\r\n";

# Continue with whatever additional communications are desired...
# ....
#