Mercurial Repositories > eric / file diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/Plugins/UiExtensionPlugins/Translator/TranslatorRequest.py	Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,108 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2014 - 2019 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a synchronous network request handler for translation
+requests.
+"""
+
+from __future__ import unicode_literals
+try:
+    str = unicode
+except NameError:
+    pass
+
+from PyQt5.QtCore import QObject, QEventLoop, QByteArray
+from PyQt5.QtNetwork import QNetworkAccessManager, QNetworkRequest, \
+    QNetworkReply
+
+from E5Network.E5NetworkProxyFactory import proxyAuthenticationRequired
+
+from Globals import qVersionTuple
+
+
+class TranslatorRequest(QObject):
+    """
+    Class implementing a synchronous network request handler for translation
+    requests.
+    """
+    def __init__(self, parent=None):
+        """
+        Constructor
+        
+        @param parent reference to the parent object (QObject)
+        """
+        super(TranslatorRequest, self).__init__(parent)
+        
+        self.__contentTypes = {
+            "form": b"application/x-www-form-urlencoded",
+            "json": b"application/json",
+        }
+        
+        self.__networkManager = QNetworkAccessManager(self)
+        self.__networkManager.proxyAuthenticationRequired.connect(
+            proxyAuthenticationRequired)
+        
+        self.__loop = QEventLoop()
+        self.__networkManager.finished.connect(self.__loop.quit)
+    
+    def get(self, requestUrl, extraHeaders=None):
+        """
+        Public method to issue a GET request.
+        
+        @param requestUrl URL of the request (QUrl)
+        @keyparam extraHeaders list of tuples of additional headers giving
+            header name (string) and header value (string)
+        @return server response (QByteArray) or error message (string)
+        """
+        request = QNetworkRequest(requestUrl)
+        if qVersionTuple() >= (5, 6, 0):
+            request.setAttribute(QNetworkRequest.FollowRedirectsAttribute,
+                                 True)
+        if extraHeaders:
+            for name, value in extraHeaders:
+                request.setRawHeader(name, value)
+        reply = self.__networkManager.get(request)
+        if not self.__loop.isRunning():
+            self.__loop.exec_()
+        if reply.error() != QNetworkReply.NoError:
+            return reply.errorString(), False
+        else:
+            return reply.readAll(), True
+    
+    def post(self, requestUrl, requestData, dataType="form",
+             extraHeaders=None):
+        """
+        Public method to issue a POST request.
+        
+        @param requestUrl URL of the request (QUrl)
+        @param requestData data of the request (QByteArray)
+        @keyparam dataType type of the request data (string)
+        @keyparam extraHeaders list of tuples of additional headers giving
+            header name (string) and header value (string)
+        @return tuple of server response (string) and flag indicating
+            success (boolean)
+        """
+        request = QNetworkRequest(requestUrl)
+        request.setRawHeader(b"User-Agent",
+                             b"Mozilla/5.0")
+        request.setRawHeader(b"Content-Type",
+                             self.__contentTypes[dataType])
+        request.setRawHeader(b"Content-Length",
+                             QByteArray.number(requestData.size()))
+        if qVersionTuple() >= (5, 6, 0):
+            request.setAttribute(QNetworkRequest.FollowRedirectsAttribute,
+                                 True)
+        if extraHeaders:
+            for name, value in extraHeaders:
+                request.setRawHeader(name, value)
+        request.setUrl(requestUrl)
+        reply = self.__networkManager.post(request, requestData)
+        if not self.__loop.isRunning():
+            self.__loop.exec_()
+        if reply.error() != QNetworkReply.NoError:
+            return reply.errorString(), False
+        else:
+            return str(reply.readAll(), "utf-8", "replace"), True