moviewyrm/bookwyrm/views/status.py

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""" what are we here for if not for posting """
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import re
from django.contrib.auth.decorators import login_required
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from django.http import HttpResponseBadRequest
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from django.shortcuts import get_object_or_404, redirect
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from django.template.response import TemplateResponse
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from django.utils.decorators import method_decorator
from django.views import View
from markdown import markdown
from bookwyrm import forms, models
from bookwyrm.sanitize_html import InputHtmlParser
from bookwyrm.settings import DOMAIN
from bookwyrm.utils import regex
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from .helpers import handle_remote_webfinger
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from .reading import edit_readthrough
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# pylint: disable= no-self-use
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@method_decorator(login_required, name="dispatch")
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class CreateStatus(View):
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"""the view for *posting*"""
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def get(self, request, status_type): # pylint: disable=unused-argument
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"""compose view (used for delete-and-redraft"""
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book = get_object_or_404(models.Edition, id=request.GET.get("book"))
data = {"book": book}
return TemplateResponse(request, "compose.html", data)
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def post(self, request, status_type):
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"""create status of whatever type"""
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status_type = status_type[0].upper() + status_type[1:]
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try:
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form = getattr(forms, "%sForm" % status_type)(request.POST)
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except AttributeError:
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return HttpResponseBadRequest()
if not form.is_valid():
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return redirect(request.headers.get("Referer", "/"))
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status = form.save(commit=False)
if not status.sensitive and status.content_warning:
# the cw text field remains populated when you click "remove"
status.content_warning = None
status.save(broadcast=False)
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# inspect the text for user tags
content = status.content
for (mention_text, mention_user) in find_mentions(content):
# add them to status mentions fk
status.mention_users.add(mention_user)
# turn the mention into a link
content = re.sub(
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r"%s([^@]|$)" % mention_text,
r'<a href="%s">%s</a>\g<1>' % (mention_user.remote_id, mention_text),
content,
)
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# add reply parent to mentions
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if status.reply_parent:
status.mention_users.add(status.reply_parent.user)
# deduplicate mentions
status.mention_users.set(set(status.mention_users.all()))
# don't apply formatting to generated notes
if not isinstance(status, models.GeneratedNote) and content:
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status.content = to_markdown(content)
# do apply formatting to quotes
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if hasattr(status, "quote"):
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status.quote = to_markdown(status.quote)
status.save(created=True)
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# update a readthorugh, if needed
edit_readthrough(request)
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return redirect("/")
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@method_decorator(login_required, name="dispatch")
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class DeleteStatus(View):
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"""tombstone that bad boy"""
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def post(self, request, status_id):
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"""delete and tombstone a status"""
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status = get_object_or_404(models.Status, id=status_id)
# don't let people delete other people's statuses
if status.user != request.user and not request.user.has_perm("moderate_post"):
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return HttpResponseBadRequest()
# perform deletion
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status.delete()
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return redirect(request.headers.get("Referer", "/"))
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@method_decorator(login_required, name="dispatch")
class DeleteAndRedraft(View):
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"""delete a status but let the user re-create it"""
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def post(self, request, status_id):
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"""delete and tombstone a status"""
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status = get_object_or_404(
models.Status.objects.select_subclasses(), id=status_id
)
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if isinstance(status, (models.GeneratedNote, models.ReviewRating)):
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return HttpResponseBadRequest()
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# don't let people redraft other people's statuses
if status.user != request.user:
return HttpResponseBadRequest()
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status_type = status.status_type.lower()
if status.reply_parent:
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status_type = "reply"
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data = {
"draft": status,
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"type": status_type,
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}
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if hasattr(status, "book"):
data["book"] = status.book
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elif status.mention_books:
data["book"] = status.mention_books.first()
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# perform deletion
status.delete()
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return TemplateResponse(request, "compose.html", data)
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def find_mentions(content):
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"""detect @mentions in raw status content"""
if not content:
return
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for match in re.finditer(regex.STRICT_USERNAME, content):
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username = match.group().strip().split("@")[1:]
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if len(username) == 1:
# this looks like a local user (@user), fill in the domain
username.append(DOMAIN)
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username = "@".join(username)
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mention_user = handle_remote_webfinger(username)
if not mention_user:
# we can ignore users we don't know about
continue
yield (match.group(), mention_user)
def format_links(content):
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"""detect and format links"""
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return re.sub(
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r'([^(href=")]|^|\()(https?:\/\/(%s([\w\.\-_\/+&\?=:;,@#])*))' % regex.DOMAIN,
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r'\g<1><a href="\g<2>">\g<3></a>',
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content,
)
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def to_markdown(content):
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"""catch links and convert to markdown"""
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content = markdown(content)
content = format_links(content)
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# sanitize resulting html
sanitizer = InputHtmlParser()
sanitizer.feed(content)
return sanitizer.get_output()