STAR-322: Fixing the multipart upload

This commit is contained in:
Daniel Schiavini 2018-12-14 12:48:40 +01:00
parent fed779d0d2
commit 4dc8edb996
6 changed files with 105 additions and 80 deletions

View file

@ -1,7 +1,7 @@
# Copyright (c) 2018 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
from time import time
from typing import Optional, Dict, Callable, List, Union
from typing import Optional, Dict, Callable, List, Union, Tuple
from PyQt5.QtCore import QUrl
from PyQt5.QtNetwork import QNetworkAccessManager, QNetworkReply, QHttpMultiPart, QNetworkRequest, QHttpPart, \
@ -31,35 +31,48 @@ class NetworkClient:
# Uses to store callback methods for finished network requests.
# This allows us to register network calls with a callback directly instead of having to dissect the reply.
self._on_finished_callbacks = {} # type: Dict[str, Callable[[QNetworkReply], None]]
# The key is created out of a tuple (operation, url)
self._on_finished_callbacks = {} # type: Dict[Tuple[int, str], Callable[[QNetworkReply], None]]
# QHttpMultiPart objects need to be kept alive and not garbage collected during the
# HTTP which uses them. We hold references to these QHttpMultiPart objects here.
self._kept_alive_multiparts = {} # type: Dict[QNetworkReply, QHttpMultiPart]
## Creates a network manager with all the required properties and event bindings.
def _createNetworkManager(self) -> None:
## Creates a network manager if needed, with all the required properties and event bindings.
def start(self) -> None:
if self._manager:
self._manager.finished.disconnect(self.__handleOnFinished)
self._manager.authenticationRequired.disconnect(self._onAuthenticationRequired)
return
self._manager = QNetworkAccessManager()
self._manager.finished.connect(self.__handleOnFinished)
self._manager.finished.connect(self._handleOnFinished)
self._last_manager_create_time = time()
self._manager.authenticationRequired.connect(self._onAuthenticationRequired)
## Destroys the network manager and event bindings.
def stop(self) -> None:
if not self._manager:
return
self._manager.finished.disconnect(self._handleOnFinished)
self._manager.authenticationRequired.disconnect(self._onAuthenticationRequired)
self._manager = None
## Create a new empty network request.
# Automatically adds the required HTTP headers.
# \param url: The URL to request
# \param content_type: The type of the body contents.
def _createEmptyRequest(self, url: str, content_type: Optional[str] = "application/json") -> QNetworkRequest:
if not self._manager:
self.start() # make sure the manager is created
request = QNetworkRequest(QUrl(url))
if content_type:
request.setHeader(QNetworkRequest.ContentTypeHeader, content_type)
request.setHeader(QNetworkRequest.UserAgentHeader, self._user_agent)
self._last_request_time = time()
return request
## Executes the correct callback method when a network request finishes.
def __handleOnFinished(self, reply: QNetworkReply) -> None:
def _handleOnFinished(self, reply: QNetworkReply) -> None:
Logger.log("i", "On finished %s %s", reply.attribute(QNetworkRequest.HttpStatusCodeAttribute), reply.url().toString())
# Due to garbage collection, we need to cache certain bits of post operations.
# As we don't want to keep them around forever, delete them if we get a reply.
@ -76,7 +89,7 @@ class NetworkClient:
# Find the right callback and execute it.
# It always takes the full reply as single parameter.
callback_key = reply.url().toString() + str(reply.operation())
callback_key = reply.operation(), reply.url().toString()
if callback_key in self._on_finished_callbacks:
self._on_finished_callbacks[callback_key](reply)
else:
@ -87,12 +100,6 @@ class NetworkClient:
if reply in self._kept_alive_multiparts:
del self._kept_alive_multiparts[reply]
## Makes sure the network manager is created.
def _validateManager(self) -> None:
if self._manager is None:
self._createNetworkManager()
assert self._manager is not None
## Callback for when the network manager detects that authentication is required but was not given.
@staticmethod
def _onAuthenticationRequired(reply: QNetworkReply, authenticator: QAuthenticator) -> None:
@ -102,7 +109,7 @@ class NetworkClient:
def _registerOnFinishedCallback(self, reply: QNetworkReply,
on_finished: Optional[Callable[[QNetworkReply], None]]) -> None:
if on_finished is not None:
self._on_finished_callbacks[reply.url().toString() + str(reply.operation())] = on_finished
self._on_finished_callbacks[reply.operation(), reply.url().toString()] = on_finished
## Add a part to a Multi-Part form.
@staticmethod
@ -133,33 +140,23 @@ class NetworkClient:
def put(self, url: str, data: Union[str, bytes], content_type: Optional[str] = None,
on_finished: Optional[Callable[[QNetworkReply], None]] = None,
on_progress: Optional[Callable[[int, int], None]] = None) -> None:
self._validateManager()
request = self._createEmptyRequest(url, content_type = content_type)
self._last_request_time = time()
if not self._manager:
return Logger.log("e", "No network manager was created to execute the PUT call with.")
body = data if isinstance(data, bytes) else data.encode() # type: bytes
reply = self._manager.put(request, body)
self._registerOnFinishedCallback(reply, on_finished)
if on_progress is not None:
# TODO: Do we need to disconnect() as well?
reply.uploadProgress.connect(on_progress)
reply.finished.connect(lambda r: Logger.log("i", "On finished %s %s", url, r))
reply.error.connect(lambda r: Logger.log("i", "On error %s %s", url, r))
## Sends a delete request to the given path.
# url: The path after the API prefix.
# on_finished: The function to be call when the response is received.
def delete(self, url: str, on_finished: Optional[Callable[[QNetworkReply], None]]) -> None:
self._validateManager()
request = self._createEmptyRequest(url)
self._last_request_time = time()
if not self._manager:
return Logger.log("e", "No network manager was created to execute the DELETE call with.")
reply = self._manager.deleteResource(request)
self._registerOnFinishedCallback(reply, on_finished)
@ -167,14 +164,7 @@ class NetworkClient:
# \param url: The path after the API prefix.
# \param on_finished: The function to be call when the response is received.
def get(self, url: str, on_finished: Optional[Callable[[QNetworkReply], None]]) -> None:
self._validateManager()
request = self._createEmptyRequest(url)
self._last_request_time = time()
if not self._manager:
return Logger.log("e", "No network manager was created to execute the GET call with.")
reply = self._manager.get(request)
self._registerOnFinishedCallback(reply, on_finished)
@ -186,13 +176,7 @@ class NetworkClient:
def post(self, url: str, data: Union[str, bytes],
on_finished: Optional[Callable[[QNetworkReply], None]],
on_progress: Optional[Callable[[int, int], None]] = None) -> None:
self._validateManager()
request = self._createEmptyRequest(url)
self._last_request_time = time()
if not self._manager:
return Logger.log("e", "Could not find manager.")
body = data if isinstance(data, bytes) else data.encode() # type: bytes
reply = self._manager.post(request, body)
@ -213,20 +197,12 @@ class NetworkClient:
def postFormWithParts(self, target: str, parts: List[QHttpPart],
on_finished: Optional[Callable[[QNetworkReply], None]],
on_progress: Optional[Callable[[int, int], None]] = None) -> Optional[QNetworkReply]:
self._validateManager()
request = self._createEmptyRequest(target, content_type = None)
multi_post_part = QHttpMultiPart(QHttpMultiPart.FormDataType)
for part in parts:
multi_post_part.append(part)
self._last_request_time = time()
if not self._manager:
Logger.log("e", "No network manager was created to execute the POST call with.")
return None
reply = self._manager.post(request, multi_post_part)
self._kept_alive_multiparts[reply] = multi_post_part

View file

@ -54,6 +54,8 @@ class AuthorizationService:
self._user_profile = self._parseJWT()
if not self._user_profile:
# If there is still no user profile from the JWT, we have to log in again.
Logger.log("w", "The user profile could not be loaded. The user must log in again!")
self.deleteAuthData()
return None
return self._user_profile

View file

@ -66,7 +66,7 @@ class T:
class CloudOutputDevice(NetworkedPrinterOutputDevice):
# The interval with which the remote clusters are checked
CHECK_CLUSTER_INTERVAL = 5.0 # seconds
CHECK_CLUSTER_INTERVAL = 50.0 # seconds
# Signal triggered when the print jobs in the queue were changed.
printJobsChanged = pyqtSignal()
@ -150,7 +150,6 @@ class CloudOutputDevice(NetworkedPrinterOutputDevice):
return
# Indicate we have started sending a job.
self._sending_job = True
self.writeStarted.emit(self)
mesh_format = MeshFormatHandler(file_handler, self.firmwareVersion)
@ -173,6 +172,8 @@ class CloudOutputDevice(NetworkedPrinterOutputDevice):
if self._last_response_time and time() - self._last_response_time < self.CHECK_CLUSTER_INTERVAL:
return # avoid calling the cloud too often
Logger.log("i", "Requesting update for %s after %s", self._device_id,
self._last_response_time and time() - self._last_response_time)
if self._account.isLoggedIn:
self.setAuthenticationState(AuthState.Authenticated)
self._api.getClusterStatus(self._device_id, self._onStatusCallFinished)
@ -183,6 +184,7 @@ class CloudOutputDevice(NetworkedPrinterOutputDevice):
# Contains both printers and print jobs statuses in a single response.
def _onStatusCallFinished(self, status: CloudClusterStatus) -> None:
# Update all data from the cluster.
self._last_response_time = time()
if self._received_printers != status.printers:
self._received_printers = status.printers
self._updatePrinters(status.printers)
@ -289,7 +291,8 @@ class CloudOutputDevice(NetworkedPrinterOutputDevice):
## Requests the print to be sent to the printer when we finished uploading the mesh.
# \param job_id: The ID of the job.
def _onPrintJobUploaded(self, job_id: str) -> None:
self._api.requestPrint(self._device_id, job_id, self._onUploadSuccess)
self._progress.update(100)
self._api.requestPrint(self._device_id, job_id, self._onPrintRequested)
## Displays the given message if uploading the mesh has failed
# \param message: The message to display.
@ -304,7 +307,7 @@ class CloudOutputDevice(NetworkedPrinterOutputDevice):
## Shows a message when the upload has succeeded
# \param response: The response from the cloud API.
def _onUploadSuccess(self, response: CloudPrintResponse) -> None:
def _onPrintRequested(self, response: CloudPrintResponse) -> None:
Logger.log("i", "The cluster will be printing this print job with the ID %s", response.cluster_job_id)
self._progress.hide()
Message(
@ -312,7 +315,6 @@ class CloudOutputDevice(NetworkedPrinterOutputDevice):
title = T.UPLOAD_SUCCESS_TITLE,
lifetime = 5
).show()
self._sending_job = False # the upload has finished so we're not sending a job anymore
self.writeFinished.emit()
## Gets the remote printers.

View file

@ -26,7 +26,7 @@ class CloudOutputDeviceManager:
META_CLUSTER_ID = "um_cloud_cluster_id"
# The interval with which the remote clusters are checked
CHECK_CLUSTER_INTERVAL = 5.0 # seconds
CHECK_CLUSTER_INTERVAL = 50.0 # seconds
# The translation catalog for this device.
I18N_CATALOG = i18nCatalog("cura")
@ -39,26 +39,22 @@ class CloudOutputDeviceManager:
self._output_device_manager = application.getOutputDeviceManager()
self._account = application.getCuraAPI().account # type: Account
self._account.loginStateChanged.connect(self._onLoginStateChanged)
self._api = CloudApiClient(self._account, self._onApiError)
# When switching machines we check if we have to activate a remote cluster.
application.globalContainerStackChanged.connect(self._connectToActiveMachine)
# create a timer to update the remote cluster list
self._update_timer = QTimer(application)
self._update_timer.setInterval(int(self.CHECK_CLUSTER_INTERVAL * 1000))
self._update_timer.setSingleShot(False)
self._update_timer.timeout.connect(self._getRemoteClusters)
# Make sure the timer is started in case we missed the loginChanged signal
self._onLoginStateChanged(self._account.isLoggedIn)
self._running = False
# Called when the uses logs in or out
def _onLoginStateChanged(self, is_logged_in: bool) -> None:
Logger.log("i", "Log in state changed to %s", is_logged_in)
if is_logged_in:
if not self._update_timer.isActive():
self._update_timer.start()
self._getRemoteClusters()
else:
if self._update_timer.isActive():
self._update_timer.stop()
@ -136,3 +132,25 @@ class CloudOutputDeviceManager:
lifetime = 10,
dismissable = True
).show()
def start(self):
if self._running:
return
application = CuraApplication.getInstance()
self._account.loginStateChanged.connect(self._onLoginStateChanged)
# When switching machines we check if we have to activate a remote cluster.
application.globalContainerStackChanged.connect(self._connectToActiveMachine)
self._update_timer.timeout.connect(self._getRemoteClusters)
self._api.start()
self._onLoginStateChanged(is_logged_in = self._account.isLoggedIn)
def stop(self):
if not self._running:
return
application = CuraApplication.getInstance()
self._account.loginStateChanged.disconnect(self._onLoginStateChanged)
# When switching machines we check if we have to activate a remote cluster.
application.globalContainerStackChanged.disconnect(self._connectToActiveMachine)
self._update_timer.timeout.disconnect(self._getRemoteClusters)
self._api.stop()
self._onLoginStateChanged(is_logged_in = False)

View file

@ -51,44 +51,69 @@ class ResumableUpload(NetworkClient):
return self._sent_bytes, last_byte
def start(self) -> None:
super().start()
if self._finished:
self._sent_bytes = 0
self._retries = 0
self._finished = False
self._uploadChunk()
def stop(self):
super().stop()
Logger.log("i", "Stopped uploading")
self._finished = True
def _uploadChunk(self) -> None:
if self._finished:
raise ValueError("The upload is already finished")
first_byte, last_byte = self._chunkRange()
Logger.log("i", "PUT %s - %s", first_byte, last_byte)
self.put(self._url, data = self._data[first_byte:last_byte], content_type = self._content_type,
on_finished = self.finishedCallback, on_progress = self.progressCallback)
# self.put(self._url, data = self._data[first_byte:last_byte], content_type = self._content_type,
# on_finished = self.finishedCallback, on_progress = self._progressCallback)
request = self._createEmptyRequest(self._url, content_type=self._content_type)
def progressCallback(self, bytes_sent: int, bytes_total: int) -> None:
reply = self._manager.put(request, self._data[first_byte:last_byte])
reply.finished.connect(lambda: self._finishedCallback(reply))
reply.uploadProgress.connect(self._progressCallback)
reply.error.connect(self._errorCallback)
if reply.isFinished():
self._finishedCallback(reply)
def _progressCallback(self, bytes_sent: int, bytes_total: int) -> None:
Logger.log("i", "Progress callback %s / %s", bytes_sent, bytes_total)
if bytes_total:
self._on_progress(int((self._sent_bytes + bytes_sent) / len(self._data) * 100))
def finishedCallback(self, reply: QNetworkReply) -> None:
def _errorCallback(self, reply: QNetworkReply) -> None:
body = bytes(reply.readAll()).decode()
Logger.log("e", "Received error while uploading: %s", body)
self.stop()
self._on_error()
def _finishedCallback(self, reply: QNetworkReply) -> None:
Logger.log("i", "Finished callback %s %s",
reply.attribute(QNetworkRequest.HttpStatusCodeAttribute), reply.url().toString())
status_code = reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
if self._retries < self.MAX_RETRIES and status_code in self.RETRY_HTTP_CODES:
self._retries += 1
Logger.log("i", "Retrying %s/%s request %s", tries, self.MAX_RETRIES, request.url)
Logger.log("i", "Retrying %s/%s request %s", self._retries, self.MAX_RETRIES, reply.url().toString())
self._uploadChunk()
return
if status_code > 308:
self._errorCallback(reply)
return
body = bytes(reply.readAll()).decode()
Logger.log("w", "status_code: %s, Headers: %s, body: %s", status_code,
[bytes(header).decode() for header in reply.rawHeaderList()], body)
if status_code > 308:
self._finished = True
Logger.log("e", "Received error while uploading: %s", body)
self._on_error()
return
first_byte, last_byte = self._chunkRange()
self._sent_bytes += last_byte - first_byte
self._finished = self._sent_bytes >= len(self._data)
if self._finished:
if self._sent_bytes >= len(self._data):
self.stop()
self._on_finished()
else:
self._uploadChunk()

View file

@ -86,6 +86,7 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
## Start looking for devices on network.
def start(self):
self.startDiscovery()
self._cloud_output_device_manager.start()
def startDiscovery(self):
self.stop()
@ -142,6 +143,7 @@ class UM3OutputDevicePlugin(OutputDevicePlugin):
if self._zero_conf is not None:
Logger.log("d", "zeroconf close...")
self._zero_conf.close()
self._cloud_output_device_manager.stop()
def removeManualDevice(self, key, address = None):
if key in self._discovered_devices: