Helpviewer/SslInfoWidget.py

changeset 1427
09d6731b73ad
child 1509
c0b5e693b0eb
diff -r dedba69cb847 -r 09d6731b73ad Helpviewer/SslInfoWidget.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Helpviewer/SslInfoWidget.py	Sun Nov 06 19:48:46 2011 +0100
@@ -0,0 +1,132 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2010 - 2011 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a widget to show SSL certificate infos.
+"""
+
+from PyQt4.QtCore import QCryptographicHash, QDateTime, Qt
+from PyQt4.QtGui import QWidget
+from PyQt4.QtNetwork import QSslCertificate
+
+from .Ui_SslInfoWidget import Ui_SslInfoWidget
+
+import Utilities
+
+
+class SslInfoWidget(QWidget, Ui_SslInfoWidget):
+    """
+    Class implementing a widget to show SSL certificate infos.
+    """
+    def __init__(self, parent=None):
+        """
+        Constructor
+        
+        @param parent reference to the parent widget (QWidget)
+        """
+        super().__init__(parent)
+        self.setupUi(self)
+        
+    def showCertificate(self, certificate):
+        """
+        Public method to show the  SSL certificate information.
+        
+        @param certificate reference to the SSL certificate (QSslCertificate)
+        """
+        self.blacklistedLabel.setVisible(False)
+        self.blacklistedLabel.setStyleSheet(
+            "QLabel { color : white; background-color : red; }")
+        self.expiredLabel.setVisible(False)
+        self.expiredLabel.setStyleSheet(
+            "QLabel { color : white; background-color : red; }")
+        
+        self.subjectCommonNameLabel.setText(self.__certificateString(
+            certificate.subjectInfo(QSslCertificate.CommonName)))
+        self.subjectOrganizationLabel.setText(self.__certificateString(
+            certificate.subjectInfo(QSslCertificate.Organization)))
+        self.subjectOrganizationalUnitLabel.setText(self.__certificateString(
+            certificate.subjectInfo(QSslCertificate.OrganizationalUnitName)))
+        self.serialNumberLabel.setText(self.__serialNumber(certificate))
+        self.issuerCommonNameLabel.setText(self.__certificateString(
+            certificate.issuerInfo(QSslCertificate.CommonName)))
+        self.issuerOrganizationLabel.setText(self.__certificateString(
+            certificate.issuerInfo(QSslCertificate.Organization)))
+        self.issuerOrganizationalUnitLabel.setText(self.__certificateString(
+            certificate.issuerInfo(QSslCertificate.OrganizationalUnitName)))
+        self.effectiveLabel.setText(Qt.escape(
+            certificate.effectiveDate().toString("yyyy-MM-dd")))
+        self.expiresLabel.setText(Qt.escape(
+            certificate.expiryDate().toString("yyyy-MM-dd")))
+        self.sha1Label.setText(self.__formatHexString(
+            str(certificate.digest(QCryptographicHash.Sha1).toHex(), encoding="ascii")))
+        self.md5Label.setText(self.__formatHexString(
+            str(certificate.digest(QCryptographicHash.Md5).toHex(), encoding="ascii")))
+        
+        if not certificate.isValid():
+            # something is wrong; indicate it to the user
+            if self.__hasExpired(certificate.effectiveDate(), certificate.expiryDate()):
+                self.expiredLabel.setVisible(True)
+            else:
+                self.blacklistedLabel.setVisible(True)
+    
+    def __certificateString(self, txt):
+        """
+        Private method to prepare some text for display.
+        
+        @param txt text to be displayed (string)
+        @return prepared text (string)
+        """
+        if txt is None or txt == "":
+            return self.trUtf8("<not part of the certificate>")
+        
+        return Qt.escape(Utilities.decodeString(txt))
+    
+    def __serialNumber(self, cert):
+        """
+        Private slot to format the certificate serial number.
+        
+        @param cert reference to the SSL certificate (QSslCertificate)
+        @return formated serial number (string)
+        """
+        serial = cert.serialNumber()
+        if serial == "":
+            return self.trUtf8("<not part of the certificate>")
+        
+        if ':' in serial:
+            return str(serial, encoding="ascii").upper()
+        else:
+            hexString = hex(int(serial))[2:]
+            return self.__formatHexString(hexString)
+    
+    def __formatHexString(self, hexString):
+        """
+        Private method to format a hex string for display.
+        
+        @param hexString hex string to be formatted (string)
+        @return formatted string (string)
+        """
+        hexString = hexString.upper()
+        
+        if len(hexString) % 2 == 1:
+            hexString = '0' + hexString
+        
+        hexList = []
+        while hexString:
+            hexList.append(hexString[:2])
+            hexString = hexString[2:]
+        
+        return Qt.escape(':'.join(hexList))
+    
+    def __hasExpired(self, effectiveDate, expiryDate):
+        """
+        Private method to check for a certificate expiration.
+        
+        @param effectiveDate date the certificate becomes effective (QDateTime)
+        @param expiryDate date the certificate expires (QDateTime)
+        @return flag indicating the expiration status (boolean)
+        """
+        now = QDateTime.currentDateTime()
+        
+        return now < effectiveDate or now >= expiryDate

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