eric6/E5Network/E5SslInfoWidget.py

Sun, 29 Nov 2020 14:10:18 +0100

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sun, 29 Nov 2020 14:10:18 +0100
changeset 7844
cb108454eda7
parent 7780
41420f82c0ac
child 7923
91e843545d9a
permissions
-rw-r--r--

WebBrowserWindow: removed the use of QTextCodec to prepare the Qt6 migration.

# -*- coding: utf-8 -*-

# Copyright (c) 2010 - 2020 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
Module implementing a widget to show SSL information.
"""

from PyQt5.QtCore import Qt, QUrl, QPoint
from PyQt5.QtWidgets import QMenu, QGridLayout, QLabel, QSizePolicy
from PyQt5.QtNetwork import QSsl, QSslConfiguration, QSslCertificate

import UI.PixmapCache
import Utilities


class E5SslInfoWidget(QMenu):
    """
    Class implementing a widget to show SSL certificate infos.
    """
    def __init__(self, url, configuration, parent=None):
        """
        Constructor
        
        @param url URL to show SSL info for (QUrl)
        @param configuration SSL configuration (QSslConfiguration)
        @param parent reference to the parent widget (QWidget)
        """
        super(E5SslInfoWidget, self).__init__(parent)
        
        self.__url = QUrl(url)
        self.__configuration = QSslConfiguration(configuration)
        
        self.setMinimumWidth(400)
        
        certList = self.__configuration.peerCertificateChain()
        if certList:
            cert = certList[0]
        else:
            cert = QSslCertificate()
        
        layout = QGridLayout(self)
        rows = 0
        
        ##########################################
        ## Identity Information
        ##########################################
        imageLabel = QLabel(self)
        layout.addWidget(imageLabel, rows, 0, Qt.AlignCenter)
        
        label = QLabel(self)
        label.setWordWrap(True)
        label.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Preferred)
        label.setText(self.tr("Identity"))
        font = label.font()
        font.setBold(True)
        label.setFont(font)
        layout.addWidget(label, rows, 1)
        rows += 1
        
        label = QLabel(self)
        label.setWordWrap(True)
        if cert.isNull():
            label.setText(self.tr(
                "Warning: this site is NOT carrying a certificate."))
            imageLabel.setPixmap(UI.PixmapCache.getPixmap("securityLow32"))
        else:
            valid = not cert.isBlacklisted()
            if valid:
                txt = ", ".join(
                    cert.issuerInfo(QSslCertificate.CommonName))
                label.setText(self.tr(
                    "The certificate for this site is valid"
                    " and has been verified by:\n{0}").format(
                    Utilities.decodeString(txt)))
                imageLabel.setPixmap(
                    UI.PixmapCache.getPixmap("securityHigh32"))
            else:
                label.setText(self.tr(
                    "The certificate for this site is NOT valid."))
                imageLabel.setPixmap(
                    UI.PixmapCache.getPixmap("securityLow32"))
            layout.addWidget(label, rows, 1)
            rows += 1
            
            label = QLabel(self)
            label.setWordWrap(True)
            label.setText(
                '<a href="moresslinfos">' +
                self.tr("Certificate Information") + "</a>")
            label.linkActivated.connect(self.__showCertificateInfos)
            layout.addWidget(label, rows, 1)
            rows += 1
        
        ##########################################
        ## Identity Information
        ##########################################
        imageLabel = QLabel(self)
        layout.addWidget(imageLabel, rows, 0, Qt.AlignCenter)
        
        label = QLabel(self)
        label.setWordWrap(True)
        label.setText(self.tr("Encryption"))
        font = label.font()
        font.setBold(True)
        label.setFont(font)
        layout.addWidget(label, rows, 1)
        rows += 1
        
        cipher = self.__configuration.sessionCipher()
        if cipher.isNull():
            label = QLabel(self)
            label.setWordWrap(True)
            label.setText(self.tr(
                'Your connection to "{0}" is NOT encrypted.\n').format(
                self.__url.host()))
            layout.addWidget(label, rows, 1)
            imageLabel.setPixmap(UI.PixmapCache.getPixmap("securityLow32"))
            rows += 1
        else:
            label = QLabel(self)
            label.setWordWrap(True)
            label.setText(self.tr(
                'Your connection to "{0}" is encrypted.').format(
                self.__url.host()))
            layout.addWidget(label, rows, 1)
            
            proto = cipher.protocol()
            if proto == QSsl.SslV3:
                sslVersion = "SSL 3.0"
                imageLabel.setPixmap(
                    UI.PixmapCache.getPixmap("securityLow32"))
            elif proto == QSsl.TlsV1SslV3:
                sslVersion = "TLS 1.0/SSL 3.0"
                imageLabel.setPixmap(
                    UI.PixmapCache.getPixmap("securityLow32"))
            elif proto == QSsl.SslV2:
                sslVersion = "SSL 2.0"
                imageLabel.setPixmap(
                    UI.PixmapCache.getPixmap("securityLow32"))
            else:
                sslVersion = self.tr("unknown")
                imageLabel.setPixmap(
                    UI.PixmapCache.getPixmap("securityLow32"))
            if proto == QSsl.TlsV1_0:
                sslVersion = "TLS 1.0"
                imageLabel.setPixmap(
                    UI.PixmapCache.getPixmap("securityHigh32"))
            elif proto == QSsl.TlsV1_1:
                sslVersion = "TLS 1.1"
                imageLabel.setPixmap(
                    UI.PixmapCache.getPixmap("securityHigh32"))
            elif proto == QSsl.TlsV1_2:
                sslVersion = "TLS 1.2"
                imageLabel.setPixmap(
                    UI.PixmapCache.getPixmap("securityHigh32"))
            try:
                # Qt 5.12 and newer
                if proto == QSsl.TlsV1_2:
                    sslVersion = "TLS 1.2"
                    imageLabel.setPixmap(
                        UI.PixmapCache.getPixmap("securityHigh32"))
            except AttributeError:
                pass
            rows += 1
            
            label = QLabel(self)
            label.setWordWrap(True)
            label.setText(self.tr(
                "It uses protocol: {0}").format(sslVersion))
            layout.addWidget(label, rows, 1)
            rows += 1
            
            label = QLabel(self)
            label.setWordWrap(True)
            label.setText(self.tr(
                "It is encrypted using {0} at {1} bits, "
                "with {2} for message authentication and "
                "{3} as key exchange mechanism.\n\n").format(
                cipher.encryptionMethod(),
                cipher.usedBits(),
                cipher.authenticationMethod(),
                cipher.keyExchangeMethod()))
            layout.addWidget(label, rows, 1)
            rows += 1
    
    def showAt(self, pos):
        """
        Public method to show the widget.
        
        @param pos position to show at (QPoint)
        """
        self.adjustSize()
        xpos = pos.x() - self.width()
        if xpos < 0:
            xpos = 10
        p = QPoint(xpos, pos.y() + 10)
        self.move(p)
        self.show()
    
    def __showCertificateInfos(self):
        """
        Private slot to show certificate information.
        """
        from .E5SslCertificatesInfoDialog import E5SslCertificatesInfoDialog
        dlg = E5SslCertificatesInfoDialog(
            self.__configuration.peerCertificateChain())
        dlg.exec()
    
    def accept(self):
        """
        Public method to accept the widget.
        """
        self.close()

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