QWebEngineViewのQFileDialogへのアクセスを無効にする

Question

ダウンロードを許可するブラウザを開発しようとしていますが、何かをインターネットにアップロードするためのすべての方法が無効になっています。私はPyQt5でブラウザを開発しましたが、FileDialogを無効にする方法を理解できません（Gmailの添付ファイルをクリックすると表示されます）。 LocalContentCanAccessRemoteUrlsやLocalContentCanAccessFileUrlsなどの設定を無効にする設定を既に他のフラグに設定しています。私もQWebEnginePageをサブクラス化し、 "chooseFile"関数を何の不運もなく修正しました。下に私のコードhere you can find the UI and resources fileがあります。

# Python import 
import sys 

# PYQT Imports 
from PyQt5 import QtCore, QtGui, QtWidgets, QtWebEngineWidgets 
# from QtWebEngineWidgets.QWebEngineView import QWebEngineView 

# UI IMPORT 
import UI_Sailor 


class WebPage(QtWebEngineWidgets.QWebEnginePage): 
    def chooseFile(self, frame=None, path=''): 
     print ('Called this') 
     return 


class Sailor(QtWidgets.QMainWindow, UI_Sailor.Ui_Sailor): 

    def __init__(self): 
     super(self.__class__, self).__init__() 
     self.setupUi(self) 
     # self.setWindowIcon(QtGui.QIcon(':/Icons/Icons/Icon_Small.png')) 
     self.setWindowTitle('Sailor - 1.0.0') 

     glob_settings = QtWebEngineWidgets.QWebEngineSettings.globalSettings() 
     self.setWebSettings(glob_settings) 

     self.create_connections() 

    def setWebSettings(self, object_settings): 
     print ('Called') 
     # Global web settings 
     object_settings.setAttribute(1, True) # JaveScript 
     object_settings.setAttribute(3, False) # Clipboard (JaveScript) 
     object_settings.setAttribute(5, False) # Local Storage 
     object_settings.setAttribute(6, False) # LocalContentCanAccessRemoteUrls 
     object_settings.setAttribute(7, False) # XSSAuditingEnabled 
     object_settings.setAttribute(9, False) # LocalContentCanAccessFileUrls 
     object_settings.setAttribute(11, True) # ScrollAnimatorEnabled 
     object_settings.setAttribute(14, True) # FullScreenSupportEnabled 

     # Check that the options are applied 
     # print (object_settings.testAttribute(1)) # JaveScript 
     # print (object_settings.testAttribute(2)) # JaveScript 
     # print (object_settings.testAttribute(3)) # Clipboard (JaveScript) 
     # print (object_settings.testAttribute(5)) # Local Storage 
     # print (object_settings.testAttribute(6)) # LocalContentCanAccessRemoteUrls 
     # print (object_settings.testAttribute(7)) # XSSAuditingEnabled 
     # print (object_settings.testAttribute(9)) # LocalContentCanAccessFileUrls 
     # print (object_settings.testAttribute(11)) # ScrollAnimatorEnabled 
     # print (object_settings.testAttribute(14)) # FullScreenSupportEnabled 

    def create_connections(self): 
     self.TXT_Address.returnPressed.connect(self.web_load_url) 
     # self.WEB_View.urlChanged.connect(self.debug) 

    def web_load_url(self): 
     # Creates the proper url 
     url_base = str(self.TXT_Address.text()) 
     url_clean = self.url_handler(url_base) 
     # Loads the url 
     # self.WEB_View.setUrl(QtCore.QUrl(url_clean)) 
     self.WEB_View.setPage(WebPage(self.WEB_View)) 
     self.WEB_View.load(QtCore.QUrl(url_clean)) 

     self.setWebSettings(self.WEB_View.settings()) 


    def debug(self): 
     print ('called') 


    def url_handler(self, url): 
     if 'http' not in url: 
      return 'http://{}'.format(url) 


if __name__ == '__main__': 
    app = QtWidgets.QApplication(sys.argv) 
    form = Sailor() 
    form.show() 
    app.exec_() 

Answer 1

WebPageクラスで間違ったメソッドを定義しました。 QWebEnginePageクラスのものではなく、QtWebKit.QWebPageクラスの署名を使用したようです。ここには最小の実例があります：

import sys 
from PyQt5 import QtCore, QtWidgets, QtWebEngineWidgets 

class WebPage(QtWebEngineWidgets.QWebEnginePage): 
    def chooseFiles(self, mode, oldfiles, mimetypes): 
     print('Called this') 
     return [] 

class Window(QtWebEngineWidgets.QWebEngineView): 
    def __init__(self): 
     super(Window, self).__init__() 
     self.setPage(WebPage(self)) 
     self.setHtml('<input type="file">') 

if __name__ == '__main__': 

    app = QtWidgets.QApplication(sys.argv) 
    window = Window() 
    window.setGeometry(600, 100, 400, 200) 
    window.show() 
    sys.exit(app.exec_())