Re: Ttl Models Password
Alfonzo Liebenstein
Django does not store raw (clear text) passwords on the user model, but onlya hash (see documentation of how passwords are managed for full details). Because of this, do not attempt tomanipulate the password attribute of the user directly. This is why a helperfunction is used when creating a user.
Permissions can be set not only per type of object, but also per specificobject instance. By using thehas_view_permission(),has_add_permission(),has_change_permission() andhas_delete_permission() methods providedby the ModelAdmin class, it is possible tocustomize permissions for different object instances of the same type.
These permissions will be created when you run manage.py migrate; the first time you run migrate after addingdjango.contrib.auth to INSTALLED_APPS, the default permissionswill be created for all previously-installed models, as well as for any newmodels being installed at that time. Afterward, it will create defaultpermissions for new models each time you run manage.py migrate (the function that creates permissions is connected to thepost_migrate signal).
A user in a group automatically has the permissions granted to that group. Forexample, if the group Site editors has the permissioncan_edit_home_page, any user in that group will have that permission.
Beyond permissions, groups are a convenient way to categorize users to givethem some label, or extended functionality. For example, you could create agroup 'Special users', and you could write code that could, say, give themaccess to a members-only portion of your site, or send them members-only emailmessages.
These provide a request.user attributeand a request.auser async methodon every request which represents the current user. If the current user has notlogged in, this attribute will be set to an instanceof AnonymousUser, otherwise it will be aninstance of User.
By default, the path that the user should be redirected to uponsuccessful authentication is stored in a query string parameter called"next". If you would prefer to use a different name for this parameter,login_required() takes anoptional redirect_field_name parameter:
Note that if you provide a value to redirect_field_name, you will mostlikely need to customize your login template as well, since the templatecontext variable which stores the redirect path will use the value ofredirect_field_name as its key rather than "next" (the default).
user_passes_test() takes a requiredargument: a callable that takes aUser object and returns True ifthe user is allowed to view the page. Note thatuser_passes_test() does notautomatically check that the User isnot anonymous.
You have to override the test_func() method of the class toprovide the test that is performed. Furthermore, you can set any of theparameters of AccessMixin tocustomize the handling of unauthorized users:
This mixin, just like the permission_requireddecorator, checks whether the user accessing a view has all givenpermissions. You should specify the permission (or an iterable ofpermissions) using the permission_required parameter:
Returns a boolean denoting whether the current user has permission toexecute the decorated view. By default, this returns the result ofcalling has_perms() with thelist of permissions returned by get_permission_required().
To ease the handling of access restrictions in class-based views, the AccessMixin can be used to configurethe behavior of a view when access is denied. Authenticated users are deniedaccess with an HTTP 403 Forbidden response. Anonymous users are redirected tothe login page or shown an HTTP 403 Forbidden response, depending on theraise_exception attribute.
This function takes the current request and the updated user object fromwhich the new session hash will be derived and updates the session hashappropriately. It also rotates the session key so that a stolen sessioncookie will be invalidated.
Django provides no default template for the authentication views. You shouldcreate your own templates for the views you want to use. The template contextis documented in each view, see All authentication views.
The views have optional arguments you can use to alter the behavior of theview. For example, if you want to change the template name a view uses, you canprovide the template_name argument. A way to do this is to provide keywordarguments in the URLconf, these will be passed on to the view. For example:
If you have customized authentication (see Customizing Authentication) you can use a custom authentication form bysetting the authentication_form attribute. This form must accept arequest keyword argument in its __init__() method and provide aget_user() method which returns the authenticated user object (thismethod is only ever called after successful form validation).
By default, AuthenticationForm rejects users whose is_activeflag is set to False. You may override this behavior with a custompolicy to determine which users can log in. Do this with a custom formthat subclasses AuthenticationForm and overrides theconfirm_login_allowed() method. This method should raise aValidationError if the given user maynot log in.
When you have both django.contrib.admin and django.contrib.authinstalled, the admin provides a convenient way to view and manage users,groups, and permissions. Users can be created and deleted like any Djangomodel. Groups can be created, and permissions can be assigned to users orgroups. A log of user edits to models made within the admin is also stored anddisplayed.
Be thoughtful about how you allow users to manage permissions. If you give anon-superuser the ability to edit users, this is ultimately the same as givingthem superuser status because they will be able to elevate permissions ofusers including themselves!
User passwords are not displayed in the admin (nor stored in the database), butthe password storage details are displayed.Included in the display of this information is a link toa password change form that allows admins to change user passwords.
The max_length should be sufficient for many use cases. If you needa longer length, please use a custom user model. If you use MySQL with the utf8mb4encoding (recommended for proper Unicode support), specify at mostmax_length=191 because MySQL can only create unique indexes with191 characters in that case by default.
Returns True if the user has the specified permission, where permis in the format ".". (seedocumentation on permissions). If the user isinactive, this method will always return False. For an activesuperuser, this method will always return True.
Returns True if the user has each of the specified permissions,where each perm is in the format".". If the user is inactive,this method will always return False. For an active superuser, thismethod will always return True.
Returns True if the user has any permissions in the given package(the Django app label). If the user is inactive, this method willalways return False. For an active superuser, this method willalways return True.
This section details the authentication backends that come with Django. Forinformation on how to use them and how to write your own authenticationbackends, see the Other authentication sources section of the User authentication guide.
Tries to authenticate username with password by callingUser.check_password. If no usernameis provided, it tries to fetch a username from kwargs using thekey CustomUser.USERNAME_FIELD. Returns anauthenticated user or None.
Use this backend to take advantage of external-to-Django-handledauthentication. It authenticates using usernames passed inrequest.META['REMOTE_USER']. Seethe Authenticating against REMOTE_USERdocumentation.
It would be great to have the opportunity to lock models with a password, so that without password it is not possible to make any changes on the model or/an it is impossible to measure the models dimensions. I am an engineere designing my projects in SketchUp; I would like to give my clients the models but want to prevent that they can measure everything out and start to analyse and copy my designs. Maybe it would be valaubale if Trimble is making an password lock in SketchUp 2016.
Read-Only Mode and/or Encrypted-Read-Only Modes would be fantastic, for sure. Clients and collaborators are becoming increasingly adamant that they have our SU models, which is causing issues when they start making changes.
If you make clear the purposes for which the data is being furnished and the limitations on use imposed by the NDA, you should be able to reach a meeting of minds with other parties that is solidly enforceable in a court of law and permits the free flow of data within these limits.
While this is true, it is also the cause of a huge number of conflicts between clients and providers. Once burned, one learns to be as specific as possible about such details and to get everything in writing!
The best the give the Sketchup file to a client, if he really needed. Then it is better to explode the whole file & change the scale. The 3d will took same and the client can view the design. But he will not be able to measure & make changes.
I tested this with a friend. It had him create a Trimble account - which is fine. But even if I set him as a User, rather than and Admin, he still had the ability to download the model. Also, the client wants to see the model with a sketch effect. Once uploaded to Trimble, it lost the effect and added some lame render effect instead.
Hitaj imagines that an application like PassGPT can raise awareness of the concerns over password security more broadly, and also be used to develop new strength estimators and randomizers that help everyday users improve their passwords.
He also recommends using passphrases instead of passwords. Unlike passwords of eight or 10 characters, passphrases are 20, 30, or more characters in length. They are memorable and much harder to guess. Better yet, he says, use the computer-generated randomizers that accompany most browsers today.
Second, I have the app on my phone and cannot sign in. I do not remember my password. I want to change it and am having serious trouble doing that. It takes me to another URL that never gets me to a "change passwrod" screen.
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