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Cura/plugins/UM3NetworkPrinting/LegacyUM3OutputDevice.py
Jaime van Kessel 57de028608 re-implemented abort & pause for legacy um3 
CL-541
2017-11-24 11:26:30 +01:00

637 lines
32 KiB
Python
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from cura.PrinterOutput.NetworkedPrinterOutputDevice import NetworkedPrinterOutputDevice, AuthState
from cura.PrinterOutput.PrinterOutputModel import PrinterOutputModel
from cura.PrinterOutput.PrintJobOutputModel import PrintJobOutputModel
from cura.PrinterOutput.MaterialOutputModel import MaterialOutputModel
from cura.Settings.ContainerManager import ContainerManager
from cura.Settings.ExtruderManager import ExtruderManager
from UM.Logger import Logger
from UM.Settings.ContainerRegistry import ContainerRegistry
from UM.Application import Application
from UM.i18n import i18nCatalog
from UM.Message import Message
from PyQt5.QtNetwork import QNetworkRequest
from PyQt5.QtCore import QTimer, QCoreApplication
from PyQt5.QtWidgets import QMessageBox
from .LegacyUM3PrinterOutputController import LegacyUM3PrinterOutputController
from time import time
import json
import os # To get the username
import gzip
i18n_catalog = i18nCatalog("cura")
## This is the output device for the "Legacy" API of the UM3. All firmware before 4.0.1 uses this API.
# Everything after that firmware uses the ClusterUM3Output.
# The Legacy output device can only have one printer (whereas the cluster can have 0 to n).
#
# Authentication is done in a number of steps;
# 1. Request an id / key pair by sending the application & user name. (state = authRequested)
# 2. Machine sends this back and will display an approve / deny message on screen. (state = AuthReceived)
# 3. OutputDevice will poll if the button was pressed.
# 4. At this point the machine either has the state Authenticated or AuthenticationDenied.
# 5. As a final step, we verify the authentication, as this forces the QT manager to setup the authenticator.
class LegacyUM3OutputDevice(NetworkedPrinterOutputDevice):
def __init__(self, device_id, address: str, properties, parent = None):
super().__init__(device_id = device_id, address = address, properties = properties, parent = parent)
self._api_prefix = "/api/v1/"
self._number_of_extruders = 2
self._authentication_id = None
self._authentication_key = None
self._authentication_counter = 0
self._max_authentication_counter = 5 * 60 # Number of attempts before authentication timed out (5 min)
self._authentication_timer = QTimer()
self._authentication_timer.setInterval(1000) # TODO; Add preference for update interval
self._authentication_timer.setSingleShot(False)
self._authentication_timer.timeout.connect(self._onAuthenticationTimer)
# The messages are created when connect is called the first time.
# This ensures that the messages are only created for devices that actually want to connect.
self._authentication_requested_message = None
self._authentication_failed_message = None
self._authentication_succeeded_message = None
self._not_authenticated_message = None
self._sending_gcode = False
self._compressing_gcode = False
self._gcode = []
self.authenticationStateChanged.connect(self._onAuthenticationStateChanged)
self.setPriority(3) # Make sure the output device gets selected above local file output
self.setName(self._id)
self.setShortDescription(i18n_catalog.i18nc("@action:button Preceded by 'Ready to'.", "Print over network"))
self.setDescription(i18n_catalog.i18nc("@properties:tooltip", "Print over network"))
self.setIconName("print")
self._output_controller = LegacyUM3PrinterOutputController(self)
def _onAuthenticationStateChanged(self):
# We only accept commands if we are authenticated.
if self._authentication_state == AuthState.Authenticated:
self.setAcceptsCommands(True)
else:
self.setAcceptsCommands(False)
def _setupMessages(self):
self._authentication_requested_message = Message(i18n_catalog.i18nc("@info:status",
"Access to the printer requested. Please approve the request on the printer"),
lifetime=0, dismissable=False, progress=0,
title=i18n_catalog.i18nc("@info:title",
"Authentication status"))
self._authentication_failed_message = Message(i18n_catalog.i18nc("@info:status", ""),
title=i18n_catalog.i18nc("@info:title", "Authentication Status"))
self._authentication_failed_message.addAction("Retry", i18n_catalog.i18nc("@action:button", "Retry"), None,
i18n_catalog.i18nc("@info:tooltip", "Re-send the access request"))
self._authentication_failed_message.actionTriggered.connect(self._requestAuthentication)
self._authentication_succeeded_message = Message(
i18n_catalog.i18nc("@info:status", "Access to the printer accepted"),
title=i18n_catalog.i18nc("@info:title", "Authentication Status"))
self._not_authenticated_message = Message(
i18n_catalog.i18nc("@info:status", "No access to print with this printer. Unable to send print job."),
title=i18n_catalog.i18nc("@info:title", "Authentication Status"))
self._not_authenticated_message.addAction("Request", i18n_catalog.i18nc("@action:button", "Request Access"),
None, i18n_catalog.i18nc("@info:tooltip",
"Send access request to the printer"))
self._not_authenticated_message.actionTriggered.connect(self._requestAuthentication)
def connect(self):
super().connect()
self._setupMessages()
global_container = Application.getInstance().getGlobalContainerStack()
if global_container:
self._authentication_id = global_container.getMetaDataEntry("network_authentication_id", None)
self._authentication_key = global_container.getMetaDataEntry("network_authentication_key", None)
def close(self):
super().close()
if self._authentication_requested_message:
self._authentication_requested_message.hide()
if self._authentication_failed_message:
self._authentication_failed_message.hide()
if self._authentication_succeeded_message:
self._authentication_succeeded_message.hide()
self._sending_gcode = False
self._compressing_gcode = False
self._authentication_timer.stop()
## Send all material profiles to the printer.
def sendMaterialProfiles(self):
Logger.log("i", "Sending material profiles to printer")
# TODO: Might want to move this to a job...
for container in ContainerRegistry.getInstance().findInstanceContainers(type="material"):
try:
xml_data = container.serialize()
if xml_data == "" or xml_data is None:
continue
names = ContainerManager.getInstance().getLinkedMaterials(container.getId())
if names:
# There are other materials that share this GUID.
if not container.isReadOnly():
continue # If it's not readonly, it's created by user, so skip it.
file_name = "none.xml"
self.postForm("materials", "form-data; name=\"file\";filename=\"%s\"" % file_name, xml_data.encode(), onFinished=None)
except NotImplementedError:
# If the material container is not the most "generic" one it can't be serialized an will raise a
# NotImplementedError. We can simply ignore these.
pass
def requestWrite(self, nodes, file_name=None, filter_by_machine=False, file_handler=None, **kwargs):
if not self.activePrinter:
# No active printer. Unable to write
return
if self.activePrinter.printerState not in ["idle", ""]:
# Printer is not able to accept commands.
return
if self._authentication_state != AuthState.Authenticated:
# Not authenticated, so unable to send job.
return
# Notify the UI that a switch to the print monitor should happen
Application.getInstance().showPrintMonitor.emit(True)
self.writeStarted.emit(self)
self._gcode = getattr(Application.getInstance().getController().getScene(), "gcode_list", [])
if not self._gcode:
# Unable to find g-code. Nothing to send
return
errors = self._checkForErrors()
if errors:
text = i18n_catalog.i18nc("@label", "Unable to start a new print job.")
informative_text = i18n_catalog.i18nc("@label",
"There is an issue with the configuration of your Ultimaker, which makes it impossible to start the print. "
"Please resolve this issues before continuing.")
detailed_text = ""
for error in errors:
detailed_text += error + "\n"
Application.getInstance().messageBox(i18n_catalog.i18nc("@window:title", "Mismatched configuration"),
text,
informative_text,
detailed_text,
buttons=QMessageBox.Ok,
icon=QMessageBox.Critical,
callback = self._messageBoxCallback
)
return # Don't continue; Errors must block sending the job to the printer.
# There might be multiple things wrong with the configuration. Check these before starting.
warnings = self._checkForWarnings()
if warnings:
text = i18n_catalog.i18nc("@label", "Are you sure you wish to print with the selected configuration?")
informative_text = i18n_catalog.i18nc("@label",
"There is a mismatch between the configuration or calibration of the printer and Cura. "
"For the best result, always slice for the PrintCores and materials that are inserted in your printer.")
detailed_text = ""
for warning in warnings:
detailed_text += warning + "\n"
Application.getInstance().messageBox(i18n_catalog.i18nc("@window:title", "Mismatched configuration"),
text,
informative_text,
detailed_text,
buttons=QMessageBox.Yes + QMessageBox.No,
icon=QMessageBox.Question,
callback=self._messageBoxCallback
)
return
# No warnings or errors, so we're good to go.
self._startPrint()
def _startPrint(self):
Logger.log("i", "Sending print job to printer.")
if self._sending_gcode:
self._error_message = Message(
i18n_catalog.i18nc("@info:status",
"Sending new jobs (temporarily) blocked, still sending the previous print job."))
self._error_message.show()
return
self._sending_gcode = True
self._send_gcode_start = time()
self._progress_message = Message(i18n_catalog.i18nc("@info:status", "Sending data to printer"), 0, False, -1,
i18n_catalog.i18nc("@info:title", "Sending Data"))
self._progress_message.addAction("Abort", i18n_catalog.i18nc("@action:button", "Cancel"), None, "")
self._progress_message.actionTriggered.connect(self._progressMessageActionTriggered)
self._progress_message.show()
compressed_gcode = self._compressGCode()
if compressed_gcode is None:
# Abort was called.
return
file_name = "%s.gcode.gz" % Application.getInstance().getPrintInformation().jobName
self.postForm("print_job", "form-data; name=\"file\";filename=\"%s\"" % file_name, compressed_gcode,
onFinished=self._onPostPrintJobFinished)
return
def _progressMessageActionTriggered(self, message_id=None, action_id=None):
if action_id == "Abort":
Logger.log("d", "User aborted sending print to remote.")
self._progress_message.hide()
self._compressing_gcode = False
self._sending_gcode = False
Application.getInstance().showPrintMonitor.emit(False)
def _onPostPrintJobFinished(self, reply):
self._progress_message.hide()
self._sending_gcode = False
def __compressDataAndNotifyQt(self, data_to_append):
compressed_data = gzip.compress(data_to_append.encode("utf-8"))
self._progress_message.setProgress(-1) # Tickle the message so that it's clear that it's still being used.
QCoreApplication.processEvents() # Ensure that the GUI does not freeze.
# Pretend that this is a response, as zipping might take a bit of time.
# If we don't do this, the device might trigger a timeout.
self._last_response_time = time()
return compressed_data
def _onUploadPrintJobProgress(self, bytes_sent, bytes_total):
if bytes_total > 0:
new_progress = bytes_sent / bytes_total * 100
# Treat upload progress as response. Uploading can take more than 10 seconds, so if we don't, we can get
# timeout responses if this happens.
self._last_response_time = time()
if new_progress > self._progress_message.getProgress():
self._progress_message.show() # Ensure that the message is visible.
self._progress_message.setProgress(bytes_sent / bytes_total * 100)
else:
self._progress_message.setProgress(0)
self._progress_message.hide()
def _compressGCode(self):
self._compressing_gcode = True
## Mash the data into single string
max_chars_per_line = 1024 * 1024 / 4 # 1/4 MB per line.
byte_array_file_data = b""
batched_line = ""
for line in self._gcode:
if not self._compressing_gcode:
self._progress_message.hide()
# Stop trying to zip / send as abort was called.
return
batched_line += line
# if the gcode was read from a gcode file, self._gcode will be a list of all lines in that file.
# Compressing line by line in this case is extremely slow, so we need to batch them.
if len(batched_line) < max_chars_per_line:
continue
byte_array_file_data += self.__compressDataAndNotifyQt(batched_line)
batched_line = ""
# Don't miss the last batch (If any)
if batched_line:
byte_array_file_data += self.__compressDataAndNotifyQt(batched_line)
self._compressing_gcode = False
return byte_array_file_data
def _messageBoxCallback(self, button):
def delayedCallback():
if button == QMessageBox.Yes:
self._startPrint()
else:
Application.getInstance().showPrintMonitor.emit(False)
# For some unknown reason Cura on OSX will hang if we do the call back code
# immediately without first returning and leaving QML's event system.
QTimer.singleShot(100, delayedCallback)
def _checkForErrors(self):
errors = []
print_information = Application.getInstance().getPrintInformation()
if not print_information.materialLengths:
Logger.log("w", "There is no material length information. Unable to check for errors.")
return errors
for index, extruder in enumerate(self.activePrinter.extruders):
# Due to airflow issues, both slots must be loaded, regardless if they are actually used or not.
if extruder.hotendID == "":
# No Printcore loaded.
errors.append(i18n_catalog.i18nc("@info:status", "No Printcore loaded in slot {slot_number}".format(slot_number=index + 1)))
if index < len(print_information.materialLengths) and print_information.materialLengths[index] != 0:
# The extruder is by this print.
if extruder.activeMaterial is None:
# No active material
errors.append(i18n_catalog.i18nc("@info:status", "No material loaded in slot {slot_number}".format(slot_number=index + 1)))
return errors
def _checkForWarnings(self):
warnings = []
print_information = Application.getInstance().getPrintInformation()
if not print_information.materialLengths:
Logger.log("w", "There is no material length information. Unable to check for warnings.")
return warnings
extruder_manager = ExtruderManager.getInstance()
for index, extruder in enumerate(self.activePrinter.extruders):
if index < len(print_information.materialLengths) and print_information.materialLengths[index] != 0:
# The extruder is by this print.
# TODO: material length check
# Check if the right Printcore is active.
variant = extruder_manager.getExtruderStack(index).findContainer({"type": "variant"})
if variant:
if variant.getName() != extruder.hotendID:
warnings.append(i18n_catalog.i18nc("@label", "Different PrintCore (Cura: {cura_printcore_name}, Printer: {remote_printcore_name}) selected for extruder {extruder_id}".format(cura_printcore_name = variant.getName(), remote_printcore_name = extruder.hotendID, extruder_id = index + 1)))
else:
Logger.log("w", "Unable to find variant.")
# Check if the right material is loaded.
local_material = extruder_manager.getExtruderStack(index).findContainer({"type": "material"})
if local_material:
if extruder.activeMaterial.guid != local_material.getMetaDataEntry("GUID"):
Logger.log("w", "Extruder %s has a different material (%s) as Cura (%s)", index + 1, extruder.activeMaterial.guid, local_material.getMetaDataEntry("GUID"))
warnings.append(i18n_catalog.i18nc("@label", "Different material (Cura: {0}, Printer: {1}) selected for extruder {2}").format(local_material.getName(), extruder.activeMaterial.name, index + 1))
else:
Logger.log("w", "Unable to find material.")
return warnings
def _update(self):
if not super()._update():
return
if self._authentication_state == AuthState.NotAuthenticated:
if self._authentication_id is None and self._authentication_key is None:
# This machine doesn't have any authentication, so request it.
self._requestAuthentication()
elif self._authentication_id is not None and self._authentication_key is not None:
# We have authentication info, but we haven't checked it out yet. Do so now.
self._verifyAuthentication()
elif self._authentication_state == AuthState.AuthenticationReceived:
# We have an authentication, but it's not confirmed yet.
self._checkAuthentication()
# We don't need authentication for requesting info, so we can go right ahead with requesting this.
self.get("printer", onFinished=self._onGetPrinterDataFinished)
self.get("print_job", onFinished=self._onGetPrintJobFinished)
def _resetAuthenticationRequestedMessage(self):
if self._authentication_requested_message:
self._authentication_requested_message.hide()
self._authentication_timer.stop()
self._authentication_counter = 0
def _onAuthenticationTimer(self):
self._authentication_counter += 1
self._authentication_requested_message.setProgress(
self._authentication_counter / self._max_authentication_counter * 100)
if self._authentication_counter > self._max_authentication_counter:
self._authentication_timer.stop()
Logger.log("i", "Authentication timer ended. Setting authentication to denied for printer: %s" % self._key)
self.setAuthenticationState(AuthState.AuthenticationDenied)
self._resetAuthenticationRequestedMessage()
self._authentication_failed_message.show()
def _verifyAuthentication(self):
Logger.log("d", "Attempting to verify authentication")
# This will ensure that the "_onAuthenticationRequired" is triggered, which will setup the authenticator.
self.get("auth/verify", onFinished=self._onVerifyAuthenticationCompleted)
def _onVerifyAuthenticationCompleted(self, reply):
status_code = reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
if status_code == 401:
# Something went wrong; We somehow tried to verify authentication without having one.
Logger.log("d", "Attempted to verify auth without having one.")
self._authentication_id = None
self._authentication_key = None
self.setAuthenticationState(AuthState.NotAuthenticated)
elif status_code == 403:
Logger.log("d",
"While trying to verify the authentication state, we got a forbidden response. Our own auth state was %s",
self._authentication_state)
self.setAuthenticationState(AuthState.AuthenticationDenied)
self._authentication_failed_message.show()
elif status_code == 200:
self.setAuthenticationState(AuthState.Authenticated)
# Now we know for sure that we are authenticated, send the material profiles to the machine.
self.sendMaterialProfiles()
def _checkAuthentication(self):
Logger.log("d", "Checking if authentication is correct for id %s and key %s", self._authentication_id, self._getSafeAuthKey())
self.get("auth/check/" + str(self._authentication_id), onFinished=self._onCheckAuthenticationFinished)
def _onCheckAuthenticationFinished(self, reply):
if str(self._authentication_id) not in reply.url().toString():
Logger.log("w", "Got an old id response.")
# Got response for old authentication ID.
return
try:
data = json.loads(bytes(reply.readAll()).decode("utf-8"))
except json.decoder.JSONDecodeError:
Logger.log("w", "Received an invalid authentication check from printer: Not valid JSON.")
return
if data.get("message", "") == "authorized":
Logger.log("i", "Authentication was approved")
self.setAuthenticationState(AuthState.Authenticated)
self._saveAuthentication()
# Double check that everything went well.
self._verifyAuthentication()
# Notify the user.
self._resetAuthenticationRequestedMessage()
self._authentication_succeeded_message.show()
elif data.get("message", "") == "unauthorized":
Logger.log("i", "Authentication was denied.")
self.setAuthenticationState(AuthState.AuthenticationDenied)
self._authentication_failed_message.show()
def _saveAuthentication(self):
global_container_stack = Application.getInstance().getGlobalContainerStack()
if global_container_stack:
if "network_authentication_key" in global_container_stack.getMetaData():
global_container_stack.setMetaDataEntry("network_authentication_key", self._authentication_key)
else:
global_container_stack.addMetaDataEntry("network_authentication_key", self._authentication_key)
if "network_authentication_id" in global_container_stack.getMetaData():
global_container_stack.setMetaDataEntry("network_authentication_id", self._authentication_id)
else:
global_container_stack.addMetaDataEntry("network_authentication_id", self._authentication_id)
# Force save so we are sure the data is not lost.
Application.getInstance().saveStack(global_container_stack)
Logger.log("i", "Authentication succeeded for id %s and key %s", self._authentication_id,
self._getSafeAuthKey())
else:
Logger.log("e", "Unable to save authentication for id %s and key %s", self._authentication_id,
self._getSafeAuthKey())
def _onRequestAuthenticationFinished(self, reply):
try:
data = json.loads(bytes(reply.readAll()).decode("utf-8"))
except json.decoder.JSONDecodeError:
Logger.log("w", "Received an invalid authentication request reply from printer: Not valid JSON.")
self.setAuthenticationState(AuthState.NotAuthenticated)
return
self.setAuthenticationState(AuthState.AuthenticationReceived)
self._authentication_id = data["id"]
self._authentication_key = data["key"]
Logger.log("i", "Got a new authentication ID (%s) and KEY (%s). Waiting for authorization.",
self._authentication_id, self._getSafeAuthKey())
def _requestAuthentication(self):
self._authentication_requested_message.show()
self._authentication_timer.start()
# Reset any previous authentication info. If this isn't done, the "Retry" action on the failed message might
# give issues.
self._authentication_key = None
self._authentication_id = None
self.post("auth/request",
json.dumps({"application": "Cura-" + Application.getInstance().getVersion(),
"user": self._getUserName()}).encode(),
onFinished=self._onRequestAuthenticationFinished)
self.setAuthenticationState(AuthState.AuthenticationRequested)
def _onAuthenticationRequired(self, reply, authenticator):
if self._authentication_id is not None and self._authentication_key is not None:
Logger.log("d",
"Authentication was required for printer: %s. Setting up authenticator with ID %s and key %s",
self._id, self._authentication_id, self._getSafeAuthKey())
authenticator.setUser(self._authentication_id)
authenticator.setPassword(self._authentication_key)
else:
Logger.log("d", "No authentication is available to use for %s, but we did got a request for it.", self._key)
def _onGetPrintJobFinished(self, reply):
status_code = reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
if not self._printers:
return # Ignore the data for now, we don't have info about a printer yet.
printer = self._printers[0]
if status_code == 200:
try:
result = json.loads(bytes(reply.readAll()).decode("utf-8"))
except json.decoder.JSONDecodeError:
Logger.log("w", "Received an invalid print job state message: Not valid JSON.")
return
if printer.activePrintJob is None:
print_job = PrintJobOutputModel(output_controller=self._output_controller)
printer.updateActivePrintJob(print_job)
else:
print_job = printer.activePrintJob
print_job.updateState(result["state"])
print_job.updateTimeElapsed(result["time_elapsed"])
print_job.updateTimeTotal(result["time_total"])
print_job.updateName(result["name"])
elif status_code == 404:
# No job found, so delete the active print job (if any!)
printer.updateActivePrintJob(None)
else:
Logger.log("w",
"Got status code {status_code} while trying to get printer data".format(status_code=status_code))
def _onGetPrinterDataFinished(self, reply):
status_code = reply.attribute(QNetworkRequest.HttpStatusCodeAttribute)
if status_code == 200:
try:
result = json.loads(bytes(reply.readAll()).decode("utf-8"))
except json.decoder.JSONDecodeError:
Logger.log("w", "Received an invalid printer state message: Not valid JSON.")
return
if not self._printers:
self._printers = [PrinterOutputModel(output_controller=self._output_controller, number_of_extruders=self._number_of_extruders)]
self.printersChanged.emit()
# LegacyUM3 always has a single printer.
printer = self._printers[0]
printer.updateBedTemperature(result["bed"]["temperature"]["current"])
printer.updateTargetBedTemperature(result["bed"]["temperature"]["target"])
printer.updatePrinterState(result["status"])
for index in range(0, self._number_of_extruders):
temperatures = result["heads"][0]["extruders"][index]["hotend"]["temperature"]
extruder = printer.extruders[index]
extruder.updateTargetHotendTemperature(temperatures["target"])
extruder.updateHotendTemperature(temperatures["current"])
material_guid = result["heads"][0]["extruders"][index]["active_material"]["guid"]
if extruder.activeMaterial is None or extruder.activeMaterial.guid != material_guid:
# Find matching material (as we need to set brand, type & color)
containers = ContainerRegistry.getInstance().findInstanceContainers(type="material",
GUID=material_guid)
if containers:
color = containers[0].getMetaDataEntry("color_code")
brand = containers[0].getMetaDataEntry("brand")
material_type = containers[0].getMetaDataEntry("material")
name = containers[0].getName()
else:
# Unknown material.
color = "#00000000"
brand = "Unknown"
material_type = "Unknown"
name = "Unknown"
material = MaterialOutputModel(guid=material_guid, type=material_type,
brand=brand, color=color, name = name)
extruder.updateActiveMaterial(material)
try:
hotend_id = result["heads"][0]["extruders"][index]["hotend"]["id"]
except KeyError:
hotend_id = ""
printer.extruders[index].updateHotendID(hotend_id)
else:
Logger.log("w",
"Got status code {status_code} while trying to get printer data".format(status_code = status_code))
## Convenience function to "blur" out all but the last 5 characters of the auth key.
# This can be used to debug print the key, without it compromising the security.
def _getSafeAuthKey(self):
if self._authentication_key is not None:
result = self._authentication_key[-5:]
result = "********" + result
return result
return self._authentication_key
## Convenience function to get the username from the OS.
# The code was copied from the getpass module, as we try to use as little dependencies as possible.
def _getUserName(self):
for name in ("LOGNAME", "USER", "LNAME", "USERNAME"):
user = os.environ.get(name)
if user:
return user
return "Unknown User" # Couldn't find out username.
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