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Move and split views

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This commit is contained in:
Griatch 2021-05-16 21:09:38 +02:00
parent dac2be3074
commit 273cc31146
25 changed files with 1299 additions and 1196 deletions
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5
evennia/help/filehelp.py
View file

@ -99,6 +99,11 @@ class FileHelpEntry:
"text": self.entrytext, "text": self.entrytext,
} }
def __str__(self):
return self.key
def __repr__(self):
return f"<FileHelpEntry {self.key}>"
class FileHelpStorageHandler: class FileHelpStorageHandler:

2
evennia/help/models.py
View file

@ -108,6 +108,8 @@ class HelpEntry(SharedMemoryModel):
# HelpEntry main class methods # HelpEntry main class methods
# #
# #
def __str__(self):
return str(self.key)
def __repr__(self): def __repr__(self):
return f"<HelpEntry {self.key}>" return f"<HelpEntry {self.key}>"

7
evennia/web/__init__.py
View file

@ -1,6 +1,5 @@
""" """
This sub-package holds the web presence of Evennia, using normal This sub-package holds the web presence of Evennia, using normal Django to
Django to relate the database contents to web pages. Also the basic relate the database contents to web pages.
webclient and the website are defined in here (the webserver itself is
found under the `server` package).
""" """

4
evennia/web/templates/website/_menu.html
View file

@ -27,9 +27,9 @@ folder and edit it to add/remove links to the menu.
</li> </li>
<!-- evennia documentation --> <!-- evennia documentation -->
<li> <li>
<a class="nav-link" href="https://github.com/evennia/evennia/wiki/Evennia-Introduction/">About</a> <a class="nav-link" href="https://www.evennia.com/docs/latest/Evennia-Introduction.html">About</a>
</li> </li>
<li><a class="nav-link" href="https://github.com/evennia/evennia/wiki">Documentation</a></li> <li><a class="nav-link" href="https://www.evennia.com/docs/latest">Documentation</a></li>
<!-- end evennia documentation --> <!-- end evennia documentation -->
<!-- game views --> <!-- game views -->

2
evennia/web/templates/website/base.html
View file

@ -55,7 +55,7 @@
<footer class="footer"> <footer class="footer">
{% block footer %} {% block footer %}
<div class="container"> <div class="container">
<span class="text-white">Powered by <a class="text-white font-weight-bold" href="http://evennia.com">Evennia.</a></span> <span class="text-white">Powered by <a class="text-white font-weight-bold" href="https://evennia.com">Evennia.</a></span>
</div> </div>
{% endblock %} {% endblock %}
</footer> </footer>

2
evennia/web/templates/website/help_detail.html
View file

@ -16,7 +16,7 @@
<h1 class="card-title">{{ view.page_title }} ({{ object|title }})</h1> <h1 class="card-title">{{ view.page_title }} ({{ object|title }})</h1>
<hr /> <hr />
<ol class="breadcrumb"> <ol class="breadcrumb">
<li class="breadcrumb-item"><a href="{% url 'help' %}">Compendium</a></li> <li class="breadcrumb-item"><a href="{% url 'help' %}">Help Index</a></li>
<li class="breadcrumb-item"><a href="{% url 'help' %}#{{ object.db_help_category }}">{{ object.db_help_category|title }}</a></li> <li class="breadcrumb-item"><a href="{% url 'help' %}#{{ object.db_help_category }}">{{ object.db_help_category|title }}</a></li>
<li class="breadcrumb-item active" aria-current="page">{{ object.db_key|title }}</li> <li class="breadcrumb-item active" aria-current="page">{{ object.db_key|title }}</li>
</ol> </ol>

2
evennia/web/templates/website/help_list.html
View file

@ -14,7 +14,7 @@
<h1 class="card-title">{{ view.page_title }}</h1> <h1 class="card-title">{{ view.page_title }}</h1>
<hr /> <hr />
<ol class="breadcrumb"> <ol class="breadcrumb">
<li class="breadcrumb-item"><a href="{% url 'help' %}">Compendium</a></li> <li class="breadcrumb-item"><a href="{% url 'help' %}">Help Index</a></li>
</ol> </ol>
<hr /> <hr />
<div class="row"> <div class="row">

13
evennia/web/templates/website/index.html
View file

@ -15,7 +15,7 @@
<hr /> <hr />
<p class="lead"> <p class="lead">
Welcome to your new installation of <a href="http://evennia.com">Evennia</a>, your friendly Welcome to your new installation of <a href="https://evennia.com">Evennia</a>, your friendly
neighborhood next-generation MUD development system and server. neighborhood next-generation MUD development system and server.
</p> </p>
<p> <p>
@ -32,12 +32,15 @@
{% endif %} {% endif %}
<p> <p>
For more info, take your time to For more info, take your time to
peruse our extensive online <a href="https://github.com/evennia/evennia/wiki">documentation</a>. peruse our extensive online <a href="https://evennia.com/docs/latest">documentation</a>.
</p> </p>
<p> <p>
Should you have any questions, concerns, bug reports, or Should you have any questions, concerns, bug reports, or
if you want to help out, don't hesitate to join the Evennia community to make your voice heard! Drop a mail to the if you want to help out, don't hesitate to join the Evennia community
<a href="https://groups.google.com/forum/#!forum/evennia">mailing list</a> or to come say hi in the <a href="http://webchat.freenode.net/?channels=evennia">developer chatroom</a>. to make your voice heard! Drop a mail to the <a
href="https://github.com/evennia/evennia/discussions">mailing
list</a> or to come say hi in the <a
href="http://webchat.freenode.net/?channels=evennia">developer chatroom</a>.
</p> </p>
<p> <p>
If you find bugs, please report them to our <a href="https://github.com/evennia/evennia/issues">Issue tracker</a>. If you find bugs, please report them to our <a href="https://github.com/evennia/evennia/issues">Issue tracker</a>.
@ -100,7 +103,7 @@
<h4 class="card-header text-center">Evennia</h4> <h4 class="card-header text-center">Evennia</h4>
<div class="card-body"> <div class="card-body">
<p><a href="http://evennia.com">Evennia</a> is an open-source MUD server built in <p><a href="https://evennia.com">Evennia</a> is an open-source MUD server built in
<a href="http://python.org">Python</a>, on top of the <a href="http://python.org">Python</a>, on top of the
<a href="http://twistedmatrix.com">Twisted</a> and <a href="http://twistedmatrix.com">Twisted</a> and
<a href="http://djangoproject.com">Django</a> frameworks. This <a href="http://djangoproject.com">Django</a> frameworks. This

10
evennia/web/templatetags/README.md Normal file
View file

@ -0,0 +1,10 @@
# Template tags
Template-tags are python code safely callable from inside the html template.
In a template they are used as
{% mytagname args %s}
See the Django documentation on template tags and a lot of tags already coming
with Django. Placing code here allows for custom tags.

0
evennia/web/templates/website/templatetags/__init__.py → evennia/web/templatetags/__init__.py
View file

0
evennia/web/templates/website/templatetags/addclass.py → evennia/web/templatetags/addclass.py
View file

2
evennia/web/website/forms.py
View file

@ -28,7 +28,7 @@ class EvenniaForm(forms.Form):
""" """
# Call parent function # Call parent function
cleaned = super(EvenniaForm, self).clean() cleaned = super().clean()
# Escape all values provided by user # Escape all values provided by user
cleaned = {k: escape(v) for k, v in cleaned.items()} cleaned = {k: escape(v) for k, v in cleaned.items()}

86
evennia/web/website/urls.py
View file

@ -6,69 +6,57 @@ from django.conf import settings
from django.contrib import admin from django.contrib import admin
from django.conf.urls import url, include from django.conf.urls import url, include
from django import views as django_views from django import views as django_views
from . import views from .views import (index, errors, accounts, help as helpviews, channels,
characters, admin as adminviews)
urlpatterns = [ urlpatterns = [
url(r"^$", views.EvenniaIndexView.as_view(), name="index"), # website front page
url(r"^tbi/", views.to_be_implemented, name="to_be_implemented"), url(r"^$", index.EvenniaIndexView.as_view(), name="index"),
# errors
url(r"^tbi/", errors.to_be_implemented, name="to_be_implemented"),
# User Authentication (makes login/logout url names available) # User Authentication (makes login/logout url names available)
url(r"^auth/register", views.AccountCreateView.as_view(), name="register"), url(r"^auth/register", accounts.AccountCreateView.as_view(), name="register"),
url(r"^auth/", include("django.contrib.auth.urls")), url(r"^auth/", include("django.contrib.auth.urls")),
# Help Topics # Help Topics
url(r"^help/$", views.HelpListView.as_view(), name="help"), url(r"^help/$", helpviews.HelpListView.as_view(), name="help"),
url( url(r"^help/(?P<category>[\w\d\-]+)/(?P<topic>[\w\d\-]+)/$",
r"^help/(?P<category>[\w\d\-]+)/(?P<topic>[\w\d\-]+)/$", helpviews.HelpDetailView.as_view(),
views.HelpDetailView.as_view(), name="help-entry-detail"),
name="help-entry-detail",
),
# Channels # Channels
url(r"^channels/$", views.ChannelListView.as_view(), name="channels"), url(r"^channels/$", channels.ChannelListView.as_view(), name="channels"),
url( url(r"^channels/(?P<slug>[\w\d\-]+)/$",
r"^channels/(?P<slug>[\w\d\-]+)/$", channels.ChannelDetailView.as_view(),
views.ChannelDetailView.as_view(), name="channel-detail"),
name="channel-detail",
),
# Character management # Character management
url(r"^characters/$", views.CharacterListView.as_view(), name="characters"), url(r"^characters/$", characters.CharacterListView.as_view(), name="characters"),
url( url(r"^characters/create/$",
r"^characters/create/$", characters.CharacterCreateView.as_view(),
views.CharacterCreateView.as_view(), name="character-create"),
name="character-create", url(r"^characters/manage/$",
), characters.CharacterManageView.as_view(),
url( name="character-manage"),
r"^characters/manage/$", url(r"^characters/detail/(?P<slug>[\w\d\-]+)/(?P<pk>[0-9]+)/$",
views.CharacterManageView.as_view(), characters.CharacterDetailView.as_view(),
name="character-manage", name="character-detail"),
), url(r"^characters/puppet/(?P<slug>[\w\d\-]+)/(?P<pk>[0-9]+)/$",
url( characters.CharacterPuppetView.as_view(),
r"^characters/detail/(?P<slug>[\w\d\-]+)/(?P<pk>[0-9]+)/$", name="character-puppet"),
views.CharacterDetailView.as_view(), url(r"^characters/update/(?P<slug>[\w\d\-]+)/(?P<pk>[0-9]+)/$",
name="character-detail", characters.CharacterUpdateView.as_view(),
), name="character-update"),
url( url(r"^characters/delete/(?P<slug>[\w\d\-]+)/(?P<pk>[0-9]+)/$",
r"^characters/puppet/(?P<slug>[\w\d\-]+)/(?P<pk>[0-9]+)/$", characters.CharacterDeleteView.as_view(),
views.CharacterPuppetView.as_view(), name="character-delete"),
name="character-puppet",
),
url(
r"^characters/update/(?P<slug>[\w\d\-]+)/(?P<pk>[0-9]+)/$",
views.CharacterUpdateView.as_view(),
name="character-update",
),
url(
r"^characters/delete/(?P<slug>[\w\d\-]+)/(?P<pk>[0-9]+)/$",
views.CharacterDeleteView.as_view(),
name="character-delete",
),
# Django original admin page. Make this URL is always available, whether # Django original admin page. Make this URL is always available, whether
# we've chosen to use Evennia's custom admin or not. # we've chosen to use Evennia's custom admin or not.
url(r"django_admin/", views.admin_wrapper, name="django_admin"), url(r"django_admin/", adminviews.admin_wrapper, name="django_admin"),
# Admin docs # Admin docs
url(r"^admin/doc/", include("django.contrib.admindocs.urls")), url(r"^admin/doc/", include("django.contrib.admindocs.urls")),
@ -77,7 +65,7 @@ urlpatterns = [
if settings.EVENNIA_ADMIN: if settings.EVENNIA_ADMIN:
urlpatterns += [ urlpatterns += [
# Our override for the admin. # Our override for the admin.
url("^admin/$", views.evennia_admin, name="evennia_admin"), url("^admin/$", adminviews.evennia_admin, name="evennia_admin"),
# Makes sure that other admin pages get loaded. # Makes sure that other admin pages get loaded.
url(r"^admin/", admin.site.urls), url(r"^admin/", admin.site.urls),
] ]

1132
evennia/web/website/views.py
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4
evennia/web/website/views/__init__.py Normal file
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@ -0,0 +1,4 @@
"""
Website views.
"""

76
evennia/web/website/views/accounts.py Normal file
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@ -0,0 +1,76 @@
"""
Views for managing accounts.
"""
from evennia.utils import class_from_module
from django.conf import settings
from django.contrib import messages
from django.urls import reverse_lazy
from django.http import HttpResponseRedirect
from .mixins import EvenniaCreateView, TypeclassMixin
from evennia.web.website import forms
class AccountMixin(TypeclassMixin):
"""
This is used to grant abilities to classes it is added to.
Any view class with this in its inheritance list will be modified to work
with Account objects instead of generic Objects or otherwise.
"""
# -- Django constructs --
model = class_from_module(settings.BASE_ACCOUNT_TYPECLASS,
fallback=settings.FALLBACK_ACCOUNT_TYPECLASS)
form_class = forms.AccountForm
class AccountCreateView(AccountMixin, EvenniaCreateView):
"""
Account creation view.
"""
# -- Django constructs --
template_name = "website/registration/register.html"
success_url = reverse_lazy("login")
def form_valid(self, form):
"""
Django hook, modified for Evennia.
This hook is called after a valid form is submitted.
When an account creation form is submitted and the data is deemed valid,
proceeds with creating the Account object.
"""
# Get values provided
username = form.cleaned_data["username"]
password = form.cleaned_data["password1"]
email = form.cleaned_data.get("email", "")
# Create account
account, errs = self.typeclass.create(username=username, password=password, email=email)
# If unsuccessful, display error messages to user
if not account:
[messages.error(self.request, err) for err in errs]
# Call the Django "form failure" hook
return self.form_invalid(form)
# Inform user of success
messages.success(
self.request,
"Your account '%s' was successfully created! "
"You may log in using it now." % account.name,
)
# Redirect the user to the login page
return HttpResponseRedirect(self.success_url)

24
evennia/web/website/views/admin.py Normal file
View file

@ -0,0 +1,24 @@
"""
Admin views.
"""
from django.contrib.admin.sites import site
from evennia.accounts.models import AccountDB
from django.shortcuts import render
from django.contrib.admin.views.decorators import staff_member_required
@staff_member_required
def evennia_admin(request):
"""
Helpful Evennia-specific admin page.
"""
return render(request, "evennia_admin.html", {"accountdb": AccountDB})
def admin_wrapper(request):
"""
Wrapper that allows us to properly use the base Django admin site, if needed.
"""
return staff_member_required(site.index)(request)

175
evennia/web/website/views/channels.py Normal file
View file

@ -0,0 +1,175 @@
"""
Views for managing channels.
"""
from django.conf import settings
from django.views.generic import ListView
from django.utils.text import slugify
from django.db.models.functions import Lower
from django.http import HttpResponseBadRequest
from evennia.utils.logger import tail_log_file
from evennia.utils import class_from_module
from .mixins import TypeclassMixin
from .objects import ObjectDetailView
class ChannelMixin(TypeclassMixin):
"""
This is a "mixin", a modifier of sorts.
Any view class with this in its inheritance list will be modified to work
with HelpEntry objects instead of generic Objects or otherwise.
"""
# -- Django constructs --
model = class_from_module(settings.BASE_CHANNEL_TYPECLASS,
fallback=settings.FALLBACK_CHANNEL_TYPECLASS)
# -- Evennia constructs --
page_title = "Channels"
# What lock type to check for the requesting user, authenticated or not.
# https://github.com/evennia/evennia/wiki/Locks#valid-access_types
access_type = "listen"
def get_queryset(self):
"""
Django hook; here we want to return a list of only those Channels
and other documentation that the current user is allowed to see.
Returns:
queryset (QuerySet): List of Channels available to the user.
"""
account = self.request.user
# Get list of all Channels
channels = self.typeclass.objects.all().iterator()
# Now figure out which ones the current user is allowed to see
bucket = [channel.id for channel in channels if channel.access(account, "listen")]
# Re-query and set a sorted list
filtered = self.typeclass.objects.filter(id__in=bucket).order_by(Lower("db_key"))
return filtered
class ChannelListView(ChannelMixin, ListView):
"""
Returns a list of channels that can be viewed by a user, authenticated
or not.
"""
# -- Django constructs --
paginate_by = 100
template_name = "website/channel_list.html"
# -- Evennia constructs --
page_title = "Channel Index"
max_popular = 10
def get_context_data(self, **kwargs):
"""
Django hook; we override it to calculate the most popular channels.
Returns:
context (dict): Django context object
"""
context = super().get_context_data(**kwargs)
# Calculate which channels are most popular
context["most_popular"] = sorted(
list(self.get_queryset()),
key=lambda channel: len(channel.subscriptions.all()),
reverse=True,
)[: self.max_popular]
return context
class ChannelDetailView(ChannelMixin, ObjectDetailView):
"""
Returns the log entries for a given channel.
"""
# -- Django constructs --
template_name = "website/channel_detail.html"
# -- Evennia constructs --
# What attributes of the object you wish to display on the page. Model-level
# attributes will take precedence over identically-named db.attributes!
# The order you specify here will be followed.
attributes = ["name"]
# How many log entries to read and display.
max_num_lines = 10000
def get_context_data(self, **kwargs):
"""
Django hook; before we can display the channel logs, we need to recall
the logfile and read its lines.
Returns:
context (dict): Django context object
"""
# Get the parent context object, necessary first step
context = super().get_context_data(**kwargs)
channel = self.object
# Get the filename this Channel is recording to
filename = channel.get_log_filename()
# Split log entries so we can filter by time
bucket = []
for log in (x.strip() for x in tail_log_file(filename, 0, self.max_num_lines)):
if not log:
continue
time, msg = log.split(" [-] ")
time_key = time.split(":")[0]
bucket.append({"key": time_key, "timestamp": time, "message": msg})
# Add the processed entries to the context
context["object_list"] = bucket
# Get a list of unique timestamps by hour and sort them
context["object_filters"] = sorted(set([x["key"] for x in bucket]))
return context
def get_object(self, queryset=None):
"""
Override of Django hook that retrieves an object by slugified channel
name.
Returns:
channel (Channel): Channel requested in the URL.
"""
# Get the queryset for the help entries the user can access
if not queryset:
queryset = self.get_queryset()
# Find the object in the queryset
channel = slugify(self.kwargs.get("slug", ""))
obj = next((x for x in queryset if slugify(x.db_key) == channel), None)
# Check if this object was requested in a valid manner
if not obj:
raise HttpResponseBadRequest(
"No %(verbose_name)s found matching the query"
% {"verbose_name": queryset.model._meta.verbose_name}
)
return obj

254
evennia/web/website/views/characters.py Normal file
View file

@ -0,0 +1,254 @@
"""
Views for manipulating Characters (children of Objects often used for
puppeting).
"""
from django.conf import settings
from django.urls import reverse_lazy
from django.contrib import messages
from django.contrib.auth.mixins import LoginRequiredMixin
from django.http import HttpResponseRedirect
from django.db.models.functions import Lower
from django.views.generic.base import RedirectView
from django.views.generic import ListView
from evennia.utils import class_from_module
from .mixins import TypeclassMixin
from .objects import ObjectDetailView, ObjectDeleteView, ObjectUpdateView, ObjectCreateView
from evennia.web.website import forms
class CharacterMixin(TypeclassMixin):
"""
This is a "mixin", a modifier of sorts.
Any view class with this in its inheritance list will be modified to work
with Character objects instead of generic Objects or otherwise.
"""
# -- Django constructs --
model = class_from_module(settings.BASE_CHARACTER_TYPECLASS,
fallback=settings.FALLBACK_CHARACTER_TYPECLASS)
form_class = forms.CharacterForm
success_url = reverse_lazy("character-manage")
def get_queryset(self):
"""
This method will override the Django get_queryset method to only
return a list of characters associated with the current authenticated
user.
Returns:
queryset (QuerySet): Django queryset for use in the given view.
"""
# Get IDs of characters owned by account
account = self.request.user
ids = [getattr(x, "id") for x in account.characters if x]
# Return a queryset consisting of those characters
return self.typeclass.objects.filter(id__in=ids).order_by(Lower("db_key"))
class CharacterListView(LoginRequiredMixin, CharacterMixin, ListView):
"""
This view provides a mechanism by which a logged-in player can view a list
of all other characters.
This view requires authentication by default as a nominal effort to prevent
human stalkers and automated bots/scrapers from harvesting data on your users.
"""
# -- Django constructs --
template_name = "website/character_list.html"
paginate_by = 100
# -- Evennia constructs --
page_title = "Character List"
access_type = "view"
def get_queryset(self):
"""
This method will override the Django get_queryset method to return a
list of all characters (filtered/sorted) instead of just those limited
to the account.
Returns:
queryset (QuerySet): Django queryset for use in the given view.
"""
account = self.request.user
# Return a queryset consisting of characters the user is allowed to
# see.
ids = [
obj.id for obj in self.typeclass.objects.all() if obj.access(account, self.access_type)
]
return self.typeclass.objects.filter(id__in=ids).order_by(Lower("db_key"))
class CharacterPuppetView(LoginRequiredMixin, CharacterMixin, RedirectView, ObjectDetailView):
"""
This view provides a mechanism by which a logged-in player can "puppet" one
of their characters within the context of the website.
It also ensures that any user attempting to puppet something is logged in,
and that their intended puppet is one that they own.
"""
def get_redirect_url(self, *args, **kwargs):
"""
Django hook.
This view returns the URL to which the user should be redirected after
a passed or failed puppet attempt.
Returns:
url (str): Path to post-puppet destination.
"""
# Get the requested character, if it belongs to the authenticated user
char = self.get_object()
# Get the page the user came from
next_page = self.request.GET.get("next", self.success_url)
if char:
# If the account owns the char, store the ID of the char in the
# Django request's session (different from Evennia session!).
# We do this because characters don't serialize well.
self.request.session["puppet"] = int(char.pk)
messages.success(self.request, "You become '%s'!" % char)
else:
# If the puppeting failed, clear out the cached puppet value
self.request.session["puppet"] = None
messages.error(self.request, "You cannot become '%s'." % char)
return next_page
class CharacterManageView(LoginRequiredMixin, CharacterMixin, ListView):
"""
This view provides a mechanism by which a logged-in player can browse,
edit, or delete their own characters.
"""
# -- Django constructs --
paginate_by = 10
template_name = "website/character_manage_list.html"
# -- Evennia constructs --
page_title = "Manage Characters"
class CharacterUpdateView(CharacterMixin, ObjectUpdateView):
"""
This view provides a mechanism by which a logged-in player (enforced by
ObjectUpdateView) can edit the attributes of a character they own.
"""
# -- Django constructs --
form_class = forms.CharacterUpdateForm
template_name = "website/character_form.html"
class CharacterDetailView(CharacterMixin, ObjectDetailView):
"""
This view provides a mechanism by which a user can view the attributes of
a character, owned by them or not.
"""
# -- Django constructs --
template_name = "website/object_detail.html"
# -- Evennia constructs --
# What attributes to display for this object
attributes = ["name", "desc"]
access_type = "view"
def get_queryset(self):
"""
This method will override the Django get_queryset method to return a
list of all characters the user may access.
Returns:
queryset (QuerySet): Django queryset for use in the given view.
"""
account = self.request.user
# Return a queryset consisting of characters the user is allowed to
# see.
ids = [
obj.id for obj in self.typeclass.objects.all() if obj.access(account, self.access_type)
]
return self.typeclass.objects.filter(id__in=ids).order_by(Lower("db_key"))
class CharacterDeleteView(CharacterMixin, ObjectDeleteView):
"""
This view provides a mechanism by which a logged-in player (enforced by
ObjectDeleteView) can delete a character they own.
"""
pass
class CharacterCreateView(CharacterMixin, ObjectCreateView):
"""
This view provides a mechanism by which a logged-in player (enforced by
ObjectCreateView) can create a new character.
"""
# -- Django constructs --
template_name = "website/character_form.html"
def form_valid(self, form):
"""
Django hook, modified for Evennia.
This hook is called after a valid form is submitted.
When an character creation form is submitted and the data is deemed valid,
proceeds with creating the Character object.
"""
# Get account object creating the character
account = self.request.user
character = None
# Get attributes from the form
self.attributes = {k: form.cleaned_data[k] for k in form.cleaned_data.keys()}
charname = self.attributes.pop("db_key")
description = self.attributes.pop("desc")
# Create a character
character, errors = self.typeclass.create(charname, account, description=description)
if errors:
# Echo error messages to the user
[messages.error(self.request, x) for x in errors]
if character:
# Assign attributes from form
for key, value in self.attributes.items():
setattr(character.db, key, value)
# Return the user to the character management page, unless overridden
messages.success(self.request, "Your character '%s' was created!" % character.name)
return HttpResponseRedirect(self.success_url)
else:
# Call the Django "form failed" hook
messages.error(self.request, "Your character could not be created.")
return self.form_invalid(form)

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"""
Error views.
"""
from django.shortcuts import render
def to_be_implemented(request):
"""
A notice letting the user know that this particular feature hasn't been
implemented yet.
"""
pagevars = {"page_title": "To Be Implemented..."}
return render(request, "tbi.html", pagevars)

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"""
Views to manipulate help entries.
"""
from django.utils.text import slugify
from django.views.generic import ListView
from django.http import HttpResponseBadRequest
from django.db.models.functions import Lower
from evennia.help.models import HelpEntry
from .mixins import TypeclassMixin, EvenniaDetailView
class HelpMixin(TypeclassMixin):
"""
This is a "mixin", a modifier of sorts.
Any view class with this in its inheritance list will be modified to work
with HelpEntry objects instead of generic Objects or otherwise.
"""
# -- Django constructs --
model = HelpEntry
# -- Evennia constructs --
page_title = "Help"
def get_queryset(self):
"""
Django hook; here we want to return a list of only those HelpEntries
and other documentation that the current user is allowed to see.
Returns:
queryset (QuerySet): List of Help entries available to the user.
"""
account = self.request.user
# Get list of all HelpEntries
entries = self.typeclass.objects.all().iterator()
# Now figure out which ones the current user is allowed to see
bucket = [entry.id for entry in entries if entry.access(account, "view")]
# Re-query and set a sorted list
filtered = (
self.typeclass.objects.filter(id__in=bucket)
.order_by(Lower("db_key"))
.order_by(Lower("db_help_category"))
)
return filtered
class HelpListView(HelpMixin, ListView):
"""
Returns a list of help entries that can be viewed by a user, authenticated
or not.
"""
# -- Django constructs --
paginate_by = 500
template_name = "website/help_list.html"
# -- Evennia constructs --
page_title = "Help Index"
class HelpDetailView(HelpMixin, EvenniaDetailView):
"""
Returns the detail page for a given help entry.
"""
# -- Django constructs --
template_name = "website/help_detail.html"
def get_context_data(self, **kwargs):
"""
Adds navigational data to the template to let browsers go to the next
or previous entry in the help list.
Returns:
context (dict): Django context object
"""
context = super().get_context_data(**kwargs)
# Get the object in question
obj = self.get_object()
# Get queryset and filter out non-related categories
queryset = (
self.get_queryset()
.filter(db_help_category=obj.db_help_category)
.order_by(Lower("db_key"))
)
context["topic_list"] = queryset
# Find the index position of the given obj in the queryset
objs = list(queryset)
for i, x in enumerate(objs):
if obj is x:
break
# Find the previous and next topics, if either exist
try:
assert i + 1 <= len(objs) and objs[i + 1] is not obj
context["topic_next"] = objs[i + 1]
except:
context["topic_next"] = None
try:
assert i - 1 >= 0 and objs[i - 1] is not obj
context["topic_previous"] = objs[i - 1]
except:
context["topic_previous"] = None
# Format the help entry using HTML instead of newlines
text = obj.db_entrytext
text = text.replace("\r\n\r\n", "\n\n")
text = text.replace("\r\n", "\n")
text = text.replace("\n", "<br />")
context["entry_text"] = text
return context
def get_object(self, queryset=None):
"""
Override of Django hook that retrieves an object by category and topic
instead of pk and slug.
Returns:
entry (HelpEntry): HelpEntry requested in the URL.
"""
# Get the queryset for the help entries the user can access
if not queryset:
queryset = self.get_queryset()
# Find the object in the queryset
category = slugify(self.kwargs.get("category", ""))
topic = slugify(self.kwargs.get("topic", ""))
obj = next(
(
x
for x in queryset
if slugify(x.db_help_category) == category and slugify(x.db_key) == topic
),
None,
)
# Check if this object was requested in a valid manner
if not obj:
return HttpResponseBadRequest(
"No %(verbose_name)s found matching the query"
% {"verbose_name": queryset.model._meta.verbose_name}
)
return obj

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"""
The main index page, including the game stats
"""
from django.conf import settings
from django.views.generic import TemplateView
from evennia import SESSION_HANDLER
from evennia.objects.models import ObjectDB
from evennia.accounts.models import AccountDB
from evennia.utils import class_from_module
def _gamestats():
"""
Generate a the gamestat context for the main index page
"""
# Some misc. configurable stuff.
# TODO: Move this to either SQL or settings.py based configuration.
fpage_account_limit = 4
# A QuerySet of the most recently connected accounts.
recent_users = AccountDB.objects.get_recently_connected_accounts()[:fpage_account_limit]
nplyrs_conn_recent = len(recent_users) or "none"
nplyrs = AccountDB.objects.num_total_accounts() or "none"
nplyrs_reg_recent = len(AccountDB.objects.get_recently_created_accounts()) or "none"
nsess = SESSION_HANDLER.account_count()
# nsess = len(AccountDB.objects.get_connected_accounts()) or "no one"
nobjs = ObjectDB.objects.count()
nobjs = nobjs or 1 # fix zero-div error with empty database
Character = class_from_module(settings.BASE_CHARACTER_TYPECLASS,
fallback=settings.FALLBACK_CHARACTER_TYPECLASS)
nchars = Character.objects.all_family().count()
Room = class_from_module(settings.BASE_ROOM_TYPECLASS,
fallback=settings.FALLBACK_ROOM_TYPECLASS)
nrooms = Room.objects.all_family().count()
Exit = class_from_module(settings.BASE_EXIT_TYPECLASS,
fallback=settings.FALLBACK_EXIT_TYPECLASS)
nexits = Exit.objects.all_family().count()
nothers = nobjs - nchars - nrooms - nexits
pagevars = {
"page_title": "Front Page",
"accounts_connected_recent": recent_users,
"num_accounts_connected": nsess or "no one",
"num_accounts_registered": nplyrs or "no",
"num_accounts_connected_recent": nplyrs_conn_recent or "no",
"num_accounts_registered_recent": nplyrs_reg_recent or "no one",
"num_rooms": nrooms or "none",
"num_exits": nexits or "no",
"num_objects": nobjs or "none",
"num_characters": nchars or "no",
"num_others": nothers or "no",
}
return pagevars
class EvenniaIndexView(TemplateView):
"""
This is a basic example of a Django class-based view, which are functionally
very similar to Evennia Commands but differ in structure. Commands are used
to interface with users using a terminal client. Views are used to interface
with users using a web browser.
To use a class-based view, you need to have written a template in HTML, and
then you write a view like this to tell Django what values to display on it.
While there are simpler ways of writing views using plain functions (and
Evennia currently contains a few examples of them), just like Commands,
writing views as classes provides you with more flexibility-- you can extend
classes and change things to suit your needs rather than having to copy and
paste entire code blocks over and over. Django also comes with many default
views for displaying things, all of them implemented as classes.
This particular example displays the index page.
"""
# Tell the view what HTML template to use for the page
template_name = "website/index.html"
# This method tells the view what data should be displayed on the template.
def get_context_data(self, **kwargs):
"""
This is a common Django method. Think of this as the website
equivalent of the Evennia Command.func() method.
If you just want to display a static page with no customization, you
don't need to define this method-- just create a view, define
template_name and you're done.
The only catch here is that if you extend or overwrite this method,
you'll always want to make sure you call the parent method to get a
context object. It's just a dict, but it comes prepopulated with all
sorts of background data intended for display on the page.
You can do whatever you want to it, but it must be returned at the end
of this method.
Keyword Args:
any (any): Passed through.
Returns:
context (dict): Dictionary of data you want to display on the page.
"""
# Always call the base implementation first to get a context object
context = super().get_context_data(**kwargs)
# Add game statistics and other pagevars
context.update(_gamestats())
return context

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"""
These are mixins for class-based views, granting functionality.
"""
from django.views.generic import DetailView
from django.views.generic.edit import CreateView, UpdateView, DeleteView
class TypeclassMixin:
"""
This is a "mixin", a modifier of sorts.
Django views typically work with classes called "models." Evennia objects
are an enhancement upon these Django models and are called "typeclasses."
But Django itself has no idea what a "typeclass" is.
For the sake of mitigating confusion, any view class with this in its
inheritance list will be modified to work with Evennia Typeclass objects or
Django models interchangeably.
"""
@property
def typeclass(self):
return self.model
@typeclass.setter
def typeclass(self, value):
self.model = value
class EvenniaCreateView(CreateView, TypeclassMixin):
"""
This view extends Django's default CreateView.
CreateView is used for creating new objects, be they Accounts, Characters or
otherwise.
"""
@property
def page_title(self):
# Makes sure the page has a sensible title.
return "Create %s" % self.typeclass._meta.verbose_name.title()
class EvenniaDetailView(DetailView, TypeclassMixin):
"""
This view extends Django's default DetailView.
DetailView is used for displaying objects, be they Accounts, Characters or
otherwise.
"""
@property
def page_title(self):
# Makes sure the page has a sensible title.
return "%s Detail" % self.typeclass._meta.verbose_name.title()
class EvenniaUpdateView(UpdateView, TypeclassMixin):
"""
This view extends Django's default UpdateView.
UpdateView is used for updating objects, be they Accounts, Characters or
otherwise.
"""
@property
def page_title(self):
# Makes sure the page has a sensible title.
return "Update %s" % self.typeclass._meta.verbose_name.title()
class EvenniaDeleteView(DeleteView, TypeclassMixin):
"""
This view extends Django's default DeleteView.
DeleteView is used for deleting objects, be they Accounts, Characters or
otherwise.
"""
@property
def page_title(self):
# Makes sure the page has a sensible title.
return "Delete %s" % self.typeclass._meta.verbose_name.title()

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"""
Views for managing a specific object)
"""
from collections import OrderedDict
from django.conf import settings
from django.contrib.auth.mixins import LoginRequiredMixin
from django.http import HttpResponseBadRequest, HttpResponseRedirect
from django.core.exceptions import PermissionDenied
from django.contrib import messages
from evennia.utils import class_from_module
from django.utils.text import slugify
from .mixins import (
EvenniaCreateView, EvenniaDeleteView, EvenniaUpdateView, EvenniaDetailView)
class ObjectDetailView(EvenniaDetailView):
"""
This is an important view.
Any view you write that deals with displaying, updating or deleting a
specific object will want to inherit from this. It provides the mechanisms
by which to retrieve the object and make sure the user requesting it has
permissions to actually *do* things to it.
"""
# -- Django constructs --
#
# Choose what class of object this view will display. Note that this should
# be an actual Python class (i.e. do `from typeclasses.characters import
# Character`, then put `Character`), not an Evennia typeclass path
# (i.e. `typeclasses.characters.Character`).
#
# So when you extend it, this line should look simple, like:
# model = Object
model = class_from_module(settings.BASE_OBJECT_TYPECLASS,
fallback=settings.FALLBACK_OBJECT_TYPECLASS)
# What HTML template you wish to use to display this page.
template_name = "website/object_detail.html"
# -- Evennia constructs --
#
# What lock type to check for the requesting user, authenticated or not.
# https://github.com/evennia/evennia/wiki/Locks#valid-access_types
access_type = "view"
# What attributes of the object you wish to display on the page. Model-level
# attributes will take precedence over identically-named db.attributes!
# The order you specify here will be followed.
attributes = ["name", "desc"]
def get_context_data(self, **kwargs):
"""
Adds an 'attributes' list to the request context consisting of the
attributes specified at the class level, and in the order provided.
Django views do not provide a way to reference dynamic attributes, so
we have to grab them all before we render the template.
Returns:
context (dict): Django context object
"""
# Get the base Django context object
context = super().get_context_data(**kwargs)
# Get the object in question
obj = self.get_object()
# Create an ordered dictionary to contain the attribute map
attribute_list = OrderedDict()
for attribute in self.attributes:
# Check if the attribute is a core fieldname (name, desc)
if attribute in self.typeclass._meta._property_names:
attribute_list[attribute.title()] = getattr(obj, attribute, "")
# Check if the attribute is a db attribute (char1.db.favorite_color)
else:
attribute_list[attribute.title()] = getattr(obj.db, attribute, "")
# Add our attribute map to the Django request context, so it gets
# displayed on the template
context["attribute_list"] = attribute_list
# Return the comprehensive context object
return context
def get_object(self, queryset=None):
"""
Override of Django hook that provides some important Evennia-specific
functionality.
Evennia does not natively store slugs, so where a slug is provided,
calculate the same for the object and make sure it matches.
This also checks to make sure the user has access to view/edit/delete
this object!
"""
# A queryset can be provided to pre-emptively limit what objects can
# possibly be returned. For example, you can supply a queryset that
# only returns objects whose name begins with "a".
if not queryset:
queryset = self.get_queryset()
# Get the object, ignoring all checks and filters for now
obj = self.typeclass.objects.get(pk=self.kwargs.get("pk"))
# Check if this object was requested in a valid manner
if slugify(obj.name) != self.kwargs.get(self.slug_url_kwarg):
raise HttpResponseBadRequest(
"No %(verbose_name)s found matching the query"
% {"verbose_name": queryset.model._meta.verbose_name}
)
# Check if the requestor account has permissions to access object
account = self.request.user
if not obj.access(account, self.access_type):
raise PermissionDenied("You are not authorized to %s this object." % self.access_type)
# Get the object, if it is in the specified queryset
obj = super(ObjectDetailView, self).get_object(queryset)
return obj
class ObjectCreateView(LoginRequiredMixin, EvenniaCreateView):
"""
This is an important view.
Any view you write that deals with creating a specific object will want to
inherit from this. It provides the mechanisms by which to make sure the user
requesting creation of an object is authenticated, and provides a sane
default title for the page.
"""
model = class_from_module(settings.BASE_OBJECT_TYPECLASS,
fallback=settings.FALLBACK_OBJECT_TYPECLASS)
class ObjectDeleteView(LoginRequiredMixin, ObjectDetailView, EvenniaDeleteView):
"""
This is an important view for obvious reasons!
Any view you write that deals with deleting a specific object will want to
inherit from this. It provides the mechanisms by which to make sure the user
requesting deletion of an object is authenticated, and that they have
permissions to delete the requested object.
"""
# -- Django constructs --
model = class_from_module(settings.BASE_OBJECT_TYPECLASS,
fallback=settings.FALLBACK_OBJECT_TYPECLASS)
template_name = "website/object_confirm_delete.html"
# -- Evennia constructs --
access_type = "delete"
def delete(self, request, *args, **kwargs):
"""
Calls the delete() method on the fetched object and then
redirects to the success URL.
We extend this so we can capture the name for the sake of confirmation.
"""
# Get the object in question. ObjectDetailView.get_object() will also
# check to make sure the current user (authenticated or not) has
# permission to delete it!
obj = str(self.get_object())
# Perform the actual deletion (the parent class handles this, which will
# in turn call the delete() method on the object)
response = super().delete(request, *args, **kwargs)
# Notify the user of the deletion
messages.success(request, "Successfully deleted '%s'." % obj)
return response
class ObjectUpdateView(LoginRequiredMixin, ObjectDetailView, EvenniaUpdateView):
"""
This is an important view.
Any view you write that deals with updating a specific object will want to
inherit from this. It provides the mechanisms by which to make sure the user
requesting editing of an object is authenticated, and that they have
permissions to edit the requested object.
This functions slightly different from default Django UpdateViews in that
it does not update core model fields, *only* object attributes!
"""
# -- Django constructs --
model = class_from_module(settings.BASE_OBJECT_TYPECLASS,
fallback=settings.FALLBACK_OBJECT_TYPECLASS)
# -- Evennia constructs --
access_type = "edit"
def get_success_url(self):
"""
Django hook.
Can be overridden to return any URL you want to redirect the user to
after the object is successfully updated, but by default it goes to the
object detail page so the user can see their changes reflected.
"""
if self.success_url:
return self.success_url
return self.object.web_get_detail_url()
def get_initial(self):
"""
Django hook, modified for Evennia.
Prepopulates the update form field values based on object db attributes.
Returns:
data (dict): Dictionary of key:value pairs containing initial form
data.
"""
# Get the object we want to update
obj = self.get_object()
# Get attributes
data = {k: getattr(obj.db, k, "") for k in self.form_class.base_fields}
# Get model fields
data.update({k: getattr(obj, k, "") for k in self.form_class.Meta.fields})
return data
def form_valid(self, form):
"""
Override of Django hook.
Updates object attributes based on values submitted.
This is run when the form is submitted and the data on it is deemed
valid-- all values are within expected ranges, all strings contain
valid characters and lengths, etc.
This method is only called if all values for the fields submitted
passed form validation, so at this point we can assume the data is
validated and sanitized.
"""
# Get the attributes after they've been cleaned and validated
data = {k: v for k, v in form.cleaned_data.items() if k not in self.form_class.Meta.fields}
# Update the object attributes
for key, value in data.items():
self.object.attributes.add(key, value)
messages.success(self.request, "Successfully updated '%s' for %s." % (key, self.object))
# Do not return super().form_valid; we don't want to update the model
# instance, just its attributes.
return HttpResponseRedirect(self.get_success_url())

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"""
This file contains the generic, assorted views that don't fall under one of the other applications.
Views are django's way of processing e.g. html templates on the fly.
"""
from collections import OrderedDict
from django.contrib.admin.sites import site
from django.conf import settings
from django.contrib import messages
from django.contrib.auth.mixins import LoginRequiredMixin
from django.contrib.admin.views.decorators import staff_member_required
from django.core.exceptions import PermissionDenied
from django.db.models.functions import Lower
from django.http import HttpResponseBadRequest, HttpResponseRedirect
from django.shortcuts import render
from django.urls import reverse_lazy
from django.views.generic import TemplateView, ListView, DetailView
from django.views.generic.base import RedirectView
from django.views.generic.edit import CreateView, UpdateView, DeleteView
from evennia import SESSION_HANDLER
from evennia.help.models import HelpEntry
from evennia.objects.models import ObjectDB
from evennia.accounts.models import AccountDB
from evennia.utils import class_from_module
from evennia.utils.logger import tail_log_file
from . import forms
from django.utils.text import slugify
#
# Channel views
#
#
# Help views
#