def createRequest(self, operation, request, outgoingData=None):
request = QNetworkRequest(request)
old_proxy = self.proxy()
# Hack to change Language
request.setRawHeader("Accept-Language","fr-FR,fr;q=0.8");
#request.setRawHeader("Accept-Charset","ISO-8859-1,utf-8;q=0.7,*;q=0.7");
#request.setRawHeader("Connection","keep-alive");
splash_proxy_factory = self._getSplashProxyFactory(request)
if splash_proxy_factory:
proxy_query = QNetworkProxyQuery(request.url())
proxy = splash_proxy_factory.queryProxy(proxy_query)[0]
self.setProxy(proxy)
# this method is called createRequest, but in fact it creates a reply
reply = super(ProxiedQNetworkAccessManager, self).createRequest(
operation, request, outgoingData
)
reply.error.connect(self._handleError)
reply.finished.connect(self._handleFinished)
reply.metaDataChanged.connect(self._handleMetaData)
reply.downloadProgress.connect(self._handleDownloadProgress)
self.setProxy(old_proxy)
return reply
def createRequest(self, op, request, outgoingData=None):
"""
Protected method to create a request.
@param op the operation to be performed (QNetworkAccessManager.Operation)
@param request reference to the request object (QNetworkRequest)
@param outgoingData reference to an IODevice containing data to be sent
(QIODevice)
@return reference to the created reply object (QNetworkReply)
"""
scheme = request.url().scheme()
if scheme == "https" and (not SSL_AVAILABLE or not QSslSocket.supportsSsl()):
return NetworkProtocolUnknownErrorReply(scheme, self)
if op == QNetworkAccessManager.PostOperation and outgoingData is not None:
outgoingDataByteArray = outgoingData.peek(1024 * 1024)
Helpviewer.HelpWindow.HelpWindow.passwordManager().post(request, outgoingDataByteArray)
reply = None
if unicode(scheme) in self.__schemeHandlers:
reply = self.__schemeHandlers[unicode(scheme)].createRequest(op, request, outgoingData)
if reply is not None:
return reply
if not self.__acceptLanguage.isEmpty():
req = QNetworkRequest(request)
req.setRawHeader("Accept-Language", self.__acceptLanguage)
else:
req = request
# AdBlock code
if op == QNetworkAccessManager.GetOperation:
if self.__adblockNetwork is None:
self.__adblockNetwork = Helpviewer.HelpWindow.HelpWindow.adblockManager().network()
reply = self.__adblockNetwork.block(req)
if reply is not None:
reply.setParent(self)
return reply
# set cache policy
if op == QNetworkAccessManager.GetOperation:
urlHost = req.url().host()
for host in self.NoCacheHosts:
if host in urlHost:
req.setAttribute(QNetworkRequest.CacheLoadControlAttribute, QNetworkRequest.AlwaysNetwork)
break
else:
req.setAttribute(QNetworkRequest.CacheLoadControlAttribute, QNetworkRequest.AlwaysNetwork)
reply = QNetworkAccessManager.createRequest(self, op, req, outgoingData)
self.emit(
SIGNAL("requestCreated(QNetworkAccessManager::Operation, const QNetworkRequest&, QNetworkReply*)"),
op,
req,
reply,
)
return reply
def request(self,
url,
method="GET",
body=None,
headers=None,
redirections=DEFAULT_MAX_REDIRECTS,
connection_type=None,
blocking=True):
"""
Make a network request by calling QgsNetworkAccessManager.
redirections argument is ignored and is here only for httplib2 compatibility.
"""
self.msg_log(u'http_call request: {0}'.format(url))
self.blocking_mode = blocking
req = QNetworkRequest()
# Avoid double quoting form QUrl
url = urllib.parse.unquote(url)
req.setUrl(QUrl(url))
if headers is not None:
# This fixes a wierd error with compressed content not being correctly
# inflated.
# If you set the header on the QNetworkRequest you are basically telling
# QNetworkAccessManager "I know what I'm doing, please don't do any content
# encoding processing".
# See: https://bugs.webkit.org/show_bug.cgi?id=63696#c1
try:
del headers['Accept-Encoding']
except KeyError:
pass
for k, v in list(headers.items()):
self.msg_log("Setting header %s to %s" % (k, v))
req.setRawHeader(k, v)
# if self.authid:
# self.msg_log("Update request w/ authid: {0}".format(self.authid))
# QgsAuthManager.instance().updateNetworkRequest(req, self.authid)
if self.reply is not None and self.reply.isRunning():
self.reply.close()
if method.lower() == 'delete':
func = getattr(QgsNetworkAccessManager.instance(),
'deleteResource')
else:
func = getattr(QgsNetworkAccessManager.instance(), method.lower())
# Calling the server ...
# Let's log the whole call for debugging purposes:
self.msg_log("Sending %s request to %s" %
(method.upper(), req.url().toString()))
self.on_abort = False
headers = {str(h): str(req.rawHeader(h)) for h in req.rawHeaderList()}
for k, v in list(headers.items()):
self.msg_log("%s: %s" % (k, v))
if method.lower() in ['post', 'put']:
if isinstance(body, file):
body = body.read()
self.reply = func(req, body)
else:
self.reply = func(req)
# if self.authid:
# self.msg_log("Update reply w/ authid: {0}".format(self.authid))
# QgsAuthManager.instance().updateNetworkReply(self.reply, self.authid)
# necessary to trap local timout manage by QgsNetworkAccessManager
# calling QgsNetworkAccessManager::abortRequest
QgsNetworkAccessManager.instance().requestTimedOut.connect(
self.requestTimedOut)
self.reply.sslErrors.connect(self.sslErrors)
self.reply.finished.connect(self.replyFinished)
self.reply.downloadProgress.connect(self.downloadProgress)
# block if blocking mode otherwise return immediatly
# it's up to the caller to manage listeners in case of no blocking mode
if not self.blocking_mode:
return (None, None)
# Call and block
self.el = QEventLoop()
self.reply.finished.connect(self.el.quit)
# Catch all exceptions (and clean up requests)
try:
self.el.exec_(QEventLoop.ExcludeUserInputEvents)
except Exception as e:
raise e
if self.reply:
self.reply.finished.disconnect(self.el.quit)
# emit exception in case of error
if not self.http_call_result.ok:
if self.http_call_result.exception and not self.exception_class:
raise self.http_call_result.exception
else:
raise self.exception_class(self.http_call_result.reason)
return (self.http_call_result, self.http_call_result.content)
