[FIXED] How to disable SSL verification using Qt and Python?

Issue

I use Python and Qt to request https://some-site.com like this:

def init_request(self):  
    req = QtNetwork.QNetworkRequest(QtCore.QUrl('https://some-site.com'))    
    self.nam = QtNetwork.QNetworkAccessManager()
    self.nam.finished.connect(self.handle_response)        
    self.nam.get(req)
    
def handle_response(self, reply): 
    if reply.error() != QtNetwork.QNetworkReply.NoError:
        print(reply.errorString())
        return

print(reply.errorString()) outputs SSL handshake failed because the https://some-site.com has problem with SSL certificate.

I know, it is possible to insecure connect to the server using curl:

curl --insecure https://some-site.com

How to do the same connect with Python and Qt?

Solution

You can use QNetworkReply.ignoreSslErrors() like this.

from PySide2.QtCore import *
from PySide2.QtWidgets import *
from PySide2.QtNetwork import *

app = QApplication()

net_manager = QNetworkAccessManager()
request = QNetworkRequest(QUrl('https://www.google.com'))
reply = net_manager.get(request)
reply.ignoreSslErrors()
def on_finish():
    print([reply.error(), reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)])
    app.quit()
reply.finished.connect(on_finish);

app.exec_()

Also, you can increase security by limiting error types and certificates with ignoreSslErrors(errors). Refer to the reference.

Answered By - relent95