moviewyrm/bookwyrm/views/user.py

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""" non-interactive pages """
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from io import BytesIO
from uuid import uuid4
from PIL import Image
from django.contrib.auth.decorators import login_required
from django.core.files.base import ContentFile
from django.core.paginator import Paginator
from django.http import HttpResponseNotFound
from django.shortcuts import redirect
from django.template.response import TemplateResponse
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from django.utils import timezone
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from django.utils.decorators import method_decorator
from django.views import View
from bookwyrm import forms, models
from bookwyrm.activitypub import ActivitypubResponse
from bookwyrm.settings import PAGE_LENGTH
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from .helpers import get_user_from_username, is_api_request
from .helpers import is_blocked, privacy_filter, object_visible_to_user
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# pylint: disable= no-self-use
class User(View):
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""" user profile page """
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def get(self, request, username):
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""" profile page for a user """
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try:
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user = get_user_from_username(request.user, username)
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except models.User.DoesNotExist:
return HttpResponseNotFound()
# make sure we're not blocked
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if is_blocked(request.user, user):
return HttpResponseNotFound()
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if is_api_request(request):
# we have a json request
return ActivitypubResponse(user.to_activity())
# otherwise we're at a UI view
try:
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page = int(request.GET.get("page", 1))
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except ValueError:
page = 1
shelf_preview = []
# only show other shelves that should be visible
shelves = user.shelf_set
is_self = request.user.id == user.id
if not is_self:
follower = user.followers.filter(id=request.user.id).exists()
if follower:
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shelves = shelves.filter(privacy__in=["public", "followers"])
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else:
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shelves = shelves.filter(privacy="public")
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for user_shelf in shelves.all():
if not user_shelf.books.count():
continue
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shelf_preview.append(
{
"name": user_shelf.name,
"local_path": user_shelf.local_path,
"books": user_shelf.books.all()[:3],
"size": user_shelf.books.count(),
}
)
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if len(shelf_preview) > 2:
break
# user's posts
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activities = privacy_filter(
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request.user,
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user.status_set.select_subclasses(),
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)
paginated = Paginator(activities, PAGE_LENGTH)
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goal = models.AnnualGoal.objects.filter(
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user=user, year=timezone.now().year
).first()
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if not object_visible_to_user(request.user, goal):
goal = None
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data = {
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"user": user,
"is_self": is_self,
"shelves": shelf_preview,
"shelf_count": shelves.count(),
"activities": paginated.page(page),
"goal": goal,
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}
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return TemplateResponse(request, "user/user.html", data)
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class Followers(View):
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""" list of followers view """
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def get(self, request, username):
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""" list of followers """
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try:
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user = get_user_from_username(request.user, username)
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except models.User.DoesNotExist:
return HttpResponseNotFound()
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# make sure we're not blocked
if is_blocked(request.user, user):
return HttpResponseNotFound()
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if is_api_request(request):
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return ActivitypubResponse(user.to_followers_activity(**request.GET))
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data = {
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"user": user,
"is_self": request.user.id == user.id,
"followers": user.followers.all(),
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}
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return TemplateResponse(request, "user/followers.html", data)
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class Following(View):
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""" list of following view """
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def get(self, request, username):
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""" list of followers """
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try:
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user = get_user_from_username(request.user, username)
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except models.User.DoesNotExist:
return HttpResponseNotFound()
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# make sure we're not blocked
if is_blocked(request.user, user):
return HttpResponseNotFound()
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if is_api_request(request):
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return ActivitypubResponse(user.to_following_activity(**request.GET))
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data = {
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"user": user,
"is_self": request.user.id == user.id,
"following": user.following.all(),
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}
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return TemplateResponse(request, "user/following.html", data)
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@method_decorator(login_required, name="dispatch")
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class EditUser(View):
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""" edit user view """
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def get(self, request):
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""" edit profile page for a user """
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data = {
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"form": forms.EditUserForm(instance=request.user),
"user": request.user,
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}
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return TemplateResponse(request, "preferences/edit_user.html", data)
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def post(self, request):
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""" les get fancy with images """
form = forms.EditUserForm(request.POST, request.FILES, instance=request.user)
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if not form.is_valid():
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data = {"form": form, "user": request.user}
return TemplateResponse(request, "preferences/edit_user.html", data)
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user = save_user_form(form)
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return redirect(user.local_path)
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def save_user_form(form):
""" special handling for the user form """
user = form.save(commit=False)
if "avatar" in form.files:
# crop and resize avatar upload
image = Image.open(form.files["avatar"])
image = crop_avatar(image)
# set the name to a hash
extension = form.files["avatar"].name.split(".")[-1]
filename = "%s.%s" % (uuid4(), extension)
user.avatar.save(filename, image, save=False)
user.save()
return user
def crop_avatar(image):
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""" reduce the size and make an avatar square """
target_size = 120
width, height = image.size
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thumbnail_scale = (
height / (width / target_size)
if height > width
else width / (height / target_size)
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)
image.thumbnail([thumbnail_scale, thumbnail_scale])
width, height = image.size
width_diff = width - target_size
height_diff = height - target_size
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cropped = image.crop(
(
int(width_diff / 2),
int(height_diff / 2),
int(width - (width_diff / 2)),
int(height - (height_diff / 2)),
)
)
output = BytesIO()
cropped.save(output, format=image.format)
return ContentFile(output.getvalue())