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from __future__ import absolute_import |
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import json |
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import os |
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from ._connectorobject import ConnectorObject |
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class User(ConnectorObject): |
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def create(self, email, password, role="user", public=True, **kwargs): |
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"""Creates the given user - using the passed in email and password. |
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You can also set other default properties by passing in the relevant information:: |
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usr.create("my@email","mypass",description="I like trains.") |
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Furthermore, ConnectorDB permits immediate initialization of an entire user tree, |
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so that you can create all relevant devices and streams in one go:: |
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usr.create("my@email","mypass",devices={ |
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"device1": { |
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"nickname": "My train", |
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"streams": { |
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"stream1": { |
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"schema": "{\"type\":\"string\"}", |
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"datatype": "train.choochoo" |
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} |
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}, |
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} |
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}) |
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The user and meta devices are created by default. If you want to add streams to the user device, |
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use the "streams" option in place of devices in create. |
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""" |
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kwargs["email"] = email |
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kwargs["password"] = password |
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kwargs["role"] = role |
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kwargs["public"] = public |
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self.metadata = self.db.create( |
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self.path, kwargs).json() |
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def set_password(self, new_password): |
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View Code Duplication |
"""Sets a new password for the user""" |
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self.set({"password": new_password}) |
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def devices(self): |
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"""Returns the list of devices that belong to the user""" |
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result = self.db.read(self.path, {"q": "ls"}) |
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if result is None or result.json() is None: |
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return [] |
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devices = [] |
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for d in result.json(): |
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dev = self[d["name"]] |
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dev.metadata = d |
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devices.append(dev) |
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return devices |
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def __getitem__(self, device_name): |
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"""Gets the child device by name""" |
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return Device(self.db, self.path + "/" + device_name) |
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def __repr__(self): |
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"""Returns a string representation of the user""" |
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return "[User:%s]" % (self.path, ) |
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def export(self, directory): |
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"""Exports the ConnectorDB user into the given directory. |
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The resulting export can be imported by using the import command (cdb.import(directory)), |
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Note that Python cannot export passwords, since the REST API does |
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not expose password hashes. Therefore, the imported user will have |
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password same as username. |
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The user export function is different than device and stream exports because |
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it outputs a format compatible directly with connectorDB's import functionality: |
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connectordb import <mydatabase> <directory> |
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This also means that you can export multiple users into the same directory without issue |
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""" |
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exportInfoFile = os.path.join(directory, "connectordb.json") |
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if os.path.exists(directory): |
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# Ensure that there is an export there already, and it is version 1 |
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if not os.path.exists(exportInfoFile): |
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raise FileExistsError( |
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"The export directory already exsits, and is not a ConnectorDB export.") |
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with open(exportInfoFile) as f: |
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exportInfo = json.load(f) |
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if exportInfo["Version"] != 1: |
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raise ValueError( |
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"Could not export to directory: incompatible export versions.") |
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else: |
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# The folder doesn't exist. Make it. |
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os.mkdir(directory) |
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with open(exportInfoFile, "w") as f: |
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json.dump( |
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{"Version": 1, "ConnectorDB": self.db.get("meta/version").text}, f) |
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# Now we create the user directory |
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udir = os.path.join(directory, self.name) |
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os.mkdir(udir) |
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# Write the user's info |
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with open(os.path.join(udir, "user.json"), "w") as f: |
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json.dump(self.data, f) |
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# Now export the devices one by one |
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for d in self.devices(): |
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d.export(os.path.join(udir, d.name)) |
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def import_device(self, directory): |
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"""Imports a device from the given directory. You export the device |
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by using device.export() |
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There are two special cases: user and meta devices. |
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If the device name is meta, import_device will not do anything. |
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If the device name is "user", import_device will overwrite the user device |
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even if it exists already. |
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""" |
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# read the device's info |
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with open(os.path.join(directory, "device.json"), "r") as f: |
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ddata = json.load(f) |
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d = self[ddata["name"]] |
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dname = ddata["name"] |
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del ddata["name"] |
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if dname == "meta": |
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return |
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elif dname == "user": |
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d.set(ddata) |
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elif d.exists(): |
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raise ValueError("The device " + d.name + " already exists") |
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else: |
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d.create(**ddata) |
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# Now import all of the streams |
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for name in os.listdir(directory): |
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sdir = os.path.join(directory, name) |
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if os.path.isdir(sdir): |
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d.import_stream(sdir) |
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# ----------------------------------------------------------------------- |
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# Following are getters and setters of the user's properties |
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@property |
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def email(self): |
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"""gets the user's email address""" |
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if "email" in self.data: |
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return self.data["email"] |
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return None |
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@email.setter |
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def email(self, new_email): |
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"""sets the user's email address""" |
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self.set({"email": new_email}) |
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@property |
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def public(self): |
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"""gets whether the user is public |
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(this means different things based on connectordb permissions setup - connectordb.com |
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has this be whether the user is publically visible. Devices are individually public/private.) |
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""" |
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if "public" in self.data: |
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return self.data["public"] |
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return None |
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@public.setter |
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def public(self, new_public): |
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"""Attempts to set whether the user is public""" |
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self.set({"public": new_public}) |
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@property |
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def role(self): |
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"""Gets the role of the user. This is the permissions level that the user has. It might |
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not be accessible depending on the permissions setup of ConnectorDB. Returns None if not accessible""" |
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if "role" in self.data: |
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return self.data["role"] |
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return None |
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@role.setter |
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def role(self, new_role): |
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""" Attempts to set the user's role""" |
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self.set({"role": new_role}) |
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# The import has to go on the bottom because py3 imports are annoying |
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from ._device import Device |
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