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__init__.py
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__init__.py
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from http import HTTPStatus
from django.http import Http404, HttpResponse
from django.shortcuts import render, redirect
from django.contrib.auth import authenticate, login as auth_login
from django.contrib.auth.decorators import login_required
from django.urls import reverse
from django.contrib import messages
from django.core.paginator import Paginator, InvalidPage
from django.core.exceptions import PermissionDenied
from django.views.decorators.cache import cache_page
from django.views.decorators.http import require_http_methods
from ..models import Story, StoryKind, Comment, User, Invitation
from ..forms import (
SubmitCommentForm,
SubmitReplyForm,
SubmitStoryForm,
SearchCommentsForm,
)
from ..apps import SicAppConfig as config
from ..markdown import comment_to_html
from ..search import query_comments
class HttpResponseNotImplemented(HttpResponse):
status_code = HTTPStatus.NOT_IMPLEMENTED
def form_errors_as_string(errors):
return ", ".join(
map(lambda k: ", ".join(map(lambda err: k + ": " + err, errors[k])), errors)
)
from .account import *
from .tags import *
def story(request, story_pk, slug=None):
try:
story_obj = Story.objects.get(pk=story_pk)
except Story.DoesNotExist:
raise Http404("Story does not exist") from Story.DoesNotExist
if "reply_preview" in request.session:
request.session["reply_preview"] = {}
request.session.modified = True
ongoing_reply_form = None
ongoing_reply_pk = None
if request.method == "POST":
if "preview" in request.POST:
form = SubmitCommentForm()
if "preview_comment_pk" in request.POST:
comment_pk = request.POST["preview_comment_pk"]
ongoing_reply_form = SubmitReplyForm(request.POST)
else:
comment_pk = None
form = SubmitCommentForm(request.POST)
ongoing_reply_form = None
text = request.POST["text"]
if "reply_preview" not in request.session:
request.session["reply_preview"] = {}
request.session["reply_preview"][comment_pk] = comment_to_html(text)
request.session.modified = True
ongoing_reply_pk = int(comment_pk) if comment_pk else None
messages.add_message(
request,
messages.INFO,
"You can view the formatting preview above the comment form.",
)
else:
form = SubmitCommentForm(request.POST)
if form.is_valid():
if request.user:
new = Comment.objects.create(
user=request.user,
story=story_obj,
parent=None,
text=form.cleaned_data["text"],
)
new.save()
messages.add_message(
request, messages.SUCCESS, "Your comment was posted."
)
form = SubmitCommentForm()
else:
messages.add_message(
request, messages.ERROR, "You must be logged in to comment."
)
else:
error = form_errors_as_string(form.errors)
messages.add_message(
request, messages.ERROR, f"Invalid comment form. Error: {error}"
)
else:
if slug != story_obj.slugify():
return redirect(story_obj.get_absolute_url())
form = SubmitCommentForm()
reply_form = SubmitReplyForm()
comments = Comment.objects.filter(story=story_obj, parent=None)
return render(
request,
"story.html",
{
"story": story_obj,
"comment_form": form,
"reply_form": reply_form,
"comments": comments,
"ongoing_reply_form": ongoing_reply_form,
"ongoing_reply_pk": ongoing_reply_pk,
},
)
@login_required
def reply(request, comment_pk):
user = request.user
try:
comment = Comment.objects.get(pk=comment_pk)
except Comment.DoesNotExist:
raise Http404("Comment does not exist") from Comment.DoesNotExist
if request.method == "POST":
form = SubmitReplyForm(request.POST)
if form.is_valid():
text = form.cleaned_data["text"]
comment = Comment.objects.create(
user=user, story=comment.story, parent=comment, text=text
)
messages.add_message(
request, messages.SUCCESS, "You successfuly submitted a comment."
)
else:
error = form_errors_as_string(form.errors)
messages.add_message(
request, messages.ERROR, f"Invalid form. Error: {error}"
)
return redirect(comment.story.get_absolute_url())
def index(request, page_num=1):
if page_num == 1 and request.get_full_path() != reverse("index"):
# Redirect to '/' to avoid having both '/' and '/page/1' as valid urls.
return redirect(reverse("index"))
story_obj = None
taggregations = None
# Figure out what to show in the index
# If user is authenticated AND has subscribed aggregations, show the set union of them
# otherwise show every story.
if request.user.is_authenticated:
user = request.user
if user.taggregation_subscriptions.exists():
story_obj = Story.objects.none().union(
*list(
map(
lambda t: t.get_stories(), user.taggregation_subscriptions.all()
)
)
)
taggregations = list(user.taggregation_subscriptions.all())
if len(taggregations) > 5:
others = taggregations[5:]
taggregations = taggregations[:5]
else:
others = None
taggregations = {
"list": taggregations,
"others": others,
}
if not story_obj:
story_obj = Story.objects.filter(active=True)
all_stories = sorted(
story_obj.order_by("-created", "title"),
key=lambda s: s.hotness()["score"],
reverse=True,
)
paginator = Paginator(all_stories, config.STORIES_PER_PAGE)
try:
page = paginator.page(page_num)
except InvalidPage:
# page_num is bigger than the actual number of pages
return redirect(reverse("index_page", kwargs={"page_num": paginator.num_pages}))
return render(
request, "index.html", {"stories": page, "aggregations": taggregations}
)
def all_stories(request, page_num=1):
if page_num == 1 and request.get_full_path() != reverse("all_stories"):
return redirect(reverse("all_stories"))
story_obj = Story.objects.filter(active=True)
all_stories = sorted(
story_obj.order_by("-created", "title"),
key=lambda s: s.hotness()["score"],
reverse=True,
)
paginator = Paginator(all_stories, config.STORIES_PER_PAGE)
try:
page = paginator.page(page_num)
except InvalidPage:
# page_num is bigger than the actual number of pages
return redirect(
reverse("all_stories_page", kwargs={"page_num": paginator.num_pages})
)
return render(request, "all_stories.html", {"stories": page})
@login_required
def submit_story(request):
user = request.user
if request.method == "POST":
form = SubmitStoryForm(request.POST)
if form.is_valid():
title = form.cleaned_data["title"]
description = form.cleaned_data["description"]
url = form.cleaned_data["url"]
publish_date = form.cleaned_data["publish_date"]
user_is_author = form.cleaned_data["user_is_author"]
new_story = Story.objects.create(
title=title,
url=url,
publish_date=publish_date,
description=description,
user=user,
user_is_author=user_is_author,
)
new_story.tags.set(form.cleaned_data["tags"])
new_story.save()
return redirect(new_story.get_absolute_url())
error = form_errors_as_string(form.errors)
messages.add_message(request, messages.ERROR, f"Invalid form. Error: {error}")
else:
form = SubmitStoryForm(initial={"kind": StoryKind.default_value()})
return render(request, "submit.html", {"form": form})
@login_required
def upvote_story(request, story_pk):
if request.method == "POST":
user = request.user
try:
story_obj = Story.objects.get(pk=story_pk)
except Story.DoesNotExist:
raise Http404("Story does not exist") from Story.DoesNotExist
if story_obj.user.pk == user.pk:
messages.add_message(
request, messages.ERROR, "You cannot vote on your own posts."
)
else:
vote, created = user.votes.get_or_create(
story=story_obj, comment=None, user=user
)
if not created:
vote.delete()
if "next" in request.GET:
return redirect(request.GET["next"])
return redirect(reverse("index"))
@login_required
def edit_story(request, story_pk, slug=None):
user = request.user
try:
story_obj = Story.objects.get(pk=story_pk)
except Story.DoesNotExist:
raise Http404("Story does not exist") from Story.DoesNotExist
if story_obj.user != user:
raise PermissionDenied("You are not the author of this story.")
if request.method == "POST":
form = SubmitStoryForm(request.POST)
if form.is_valid():
story_obj.title = form.cleaned_data["title"]
story_obj.description = form.cleaned_data["description"]
story_obj.url = form.cleaned_data["url"]
story_obj.user_is_author = form.cleaned_data["user_is_author"]
story_obj.tags.set(form.cleaned_data["tags"])
story_obj.save()
return redirect(story_obj.get_absolute_url())
error = form_errors_as_string(form.errors)
messages.add_message(request, messages.ERROR, f"Invalid form. Error: {error}")
else:
form = SubmitStoryForm(
initial={
"title": story_obj.title,
"description": story_obj.description,
"url": story_obj.url,
"user_is_author": story_obj.user_is_author,
"tags": story_obj.tags.all(),
}
)
return render(request, "submit.html", {"form": form})
@login_required
def upvote_comment(request, story_pk, slug, comment_pk):
if request.method == "POST":
user = request.user
try:
story_obj = Story.objects.get(pk=story_pk)
except Story.DoesNotExist:
raise Http404("Story does not exist") from Story.DoesNotExist
try:
comment_obj = Comment.objects.get(pk=comment_pk)
except Comment.DoesNotExist:
raise Http404("Comment does not exist") from Comment.DoesNotExist
if comment_obj.user.pk == user.pk:
messages.add_message(
request, messages.ERROR, "You cannot vote on your own posts."
)
else:
vote, created = user.votes.filter(story=story_obj).get_or_create(
story=story_obj, comment=comment_obj, user=user
)
if not created:
vote.delete()
if "next" in request.GET:
return redirect(request.GET["next"])
return redirect(reverse("index"))
def recent(request, page_num=1):
if page_num == 1 and request.get_full_path() != reverse("recent"):
# Redirect to '/' to avoid having both '/' and '/page/1' as valid urls.
return redirect(reverse("recent"))
story_obj = Story.objects.order_by("-created", "title").filter(active=True)
paginator = Paginator(story_obj[:40], config.STORIES_PER_PAGE)
try:
page = paginator.page(page_num)
except InvalidPage:
# page_num is bigger than the actual number of pages
return redirect(
reverse("recent_page", kwargs={"page_num": paginator.num_pages})
)
return render(request, "index.html", {"stories": page})
def recent_comments(request, page_num=1):
if page_num == 1 and request.get_full_path() != reverse("recent_comments"):
# Redirect to '/' to avoid having both '/' and '/page/1' as valid urls.
return redirect(reverse("recent_comments"))
comments = Comment.objects.order_by("-created").filter(deleted=False)
paginator = Paginator(comments[:40], config.STORIES_PER_PAGE)
try:
page = paginator.page(page_num)
except InvalidPage:
# page_num is bigger than the actual number of pages
return redirect(
reverse("recent_comments_page", kwargs={"page_num": paginator.num_pages})
)
reply_form = SubmitReplyForm()
return render(
request, "recent_comments.html", {"comments": page, "reply_form": reply_form}
)
@cache_page(60 * 15)
def invitation_tree(request):
root_user = User.objects.earliest("created")
return render(
request,
"about_invitation_tree.html",
{
"root_user": root_user,
"depth": 0,
"max_depth": 64,
},
)
@require_http_methods(["GET"])
def comment_source(request, story_pk, slug, comment_pk):
try:
story_obj = Story.objects.get(pk=story_pk)
except Story.DoesNotExist:
raise Http404("Story does not exist") from Story.DoesNotExist
try:
comment_obj = Comment.objects.get(pk=comment_pk)
except Comment.DoesNotExist:
raise Http404("Comment does not exist") from Comment.DoesNotExist
return HttpResponse(comment_obj.text, content_type="text/plain; charset=utf-8")
@require_http_methods(["GET"])
def search(request):
results = None
if "text" in request.GET:
form = SearchCommentsForm(request.GET)
if form.is_valid():
results = query_comments(form.cleaned_data["text"])
else:
form = SearchCommentsForm()
return render(request, "search.html", {"form": form, "results": results})