251 lines
9.2 KiB
Python
251 lines
9.2 KiB
Python
from django import forms
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from django.conf import settings
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from django.core.exceptions import PermissionDenied
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from django.shortcuts import get_object_or_404, redirect, render
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from django.utils import timezone
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from django.utils.decorators import method_decorator
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from django.views.generic import FormView
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from activities.models import (
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Post,
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PostAttachment,
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PostAttachmentStates,
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PostStates,
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TimelineEvent,
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)
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from core.files import blurhash_image, resize_image
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from core.html import html_to_plaintext
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from core.models import Config
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from users.decorators import identity_required
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@method_decorator(identity_required, name="dispatch")
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class Compose(FormView):
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template_name = "activities/compose.html"
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class form_class(forms.Form):
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text = forms.CharField(
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widget=forms.Textarea(
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attrs={
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"autofocus": "autofocus",
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"maxlength": Config.lazy_system_value("post_length"),
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"placeholder": "What's on your mind?",
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},
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)
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)
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visibility = forms.ChoiceField(
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choices=[
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(Post.Visibilities.public, "Public"),
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(Post.Visibilities.local_only, "Local Only"),
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(Post.Visibilities.unlisted, "Unlisted"),
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(Post.Visibilities.followers, "Followers & Mentioned Only"),
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(Post.Visibilities.mentioned, "Mentioned Only"),
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],
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)
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content_warning = forms.CharField(
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required=False,
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label=Config.lazy_system_value("content_warning_text"),
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widget=forms.TextInput(
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attrs={
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"placeholder": Config.lazy_system_value("content_warning_text"),
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},
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),
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help_text="Optional - Post will be hidden behind this text until clicked",
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)
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reply_to = forms.CharField(widget=forms.HiddenInput(), required=False)
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def __init__(self, request, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.request = request
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self.fields["text"].widget.attrs[
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"_"
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] = f"""
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on load or input
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set characters to my.value.trim().length
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put {Config.system.post_length} - characters into #character-counter
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if characters > {Config.system.post_length} then
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set #character-counter's style.color to 'var(--color-text-error)'
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add [@disabled=] to #post-button
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else
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set #character-counter's style.color to ''
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remove @disabled from #post-button
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end
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"""
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def clean_text(self):
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text = self.cleaned_data.get("text")
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# Check minimum interval
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last_post = self.request.identity.posts.order_by("-created").first()
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if (
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last_post
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and (timezone.now() - last_post.created).total_seconds()
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< Config.system.post_minimum_interval
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):
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raise forms.ValidationError(
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f"You must wait at least {Config.system.post_minimum_interval} seconds between posts"
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)
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if not text:
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return text
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# Check post length
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length = len(text)
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if length > Config.system.post_length:
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raise forms.ValidationError(
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f"Maximum post length is {Config.system.post_length} characters (you have {length})"
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)
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return text
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def get_form(self, form_class=None):
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return self.form_class(request=self.request, **self.get_form_kwargs())
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def get_initial(self):
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initial = super().get_initial()
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if self.post_obj:
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initial.update(
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{
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"reply_to": self.reply_to.pk if self.reply_to else "",
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"visibility": self.post_obj.visibility,
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"text": html_to_plaintext(self.post_obj.content),
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"content_warning": self.post_obj.summary,
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}
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)
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else:
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initial[
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"visibility"
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] = self.request.identity.config_identity.default_post_visibility
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if self.reply_to:
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initial["reply_to"] = self.reply_to.pk
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if self.reply_to.visibility == Post.Visibilities.public:
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initial["visibility"] = Post.Visibilities.unlisted
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else:
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initial["visibility"] = self.reply_to.visibility
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# Build a set of mentions for the content to start as
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mentioned = {self.reply_to.author}
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mentioned.update(self.reply_to.mentions.all())
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mentioned.discard(self.request.identity)
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initial["text"] = "".join(
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f"@{identity.handle} "
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for identity in mentioned
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if identity.username
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)
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return initial
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def form_valid(self, form):
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# Gather any attachment objects now, they're not in the form proper
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attachments = []
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if "attachment" in self.request.POST:
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attachments = PostAttachment.objects.filter(
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pk__in=self.request.POST.getlist("attachment", [])
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)
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# Dispatch based on edit or not
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if self.post_obj:
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self.post_obj.edit_local(
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content=form.cleaned_data["text"],
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summary=form.cleaned_data.get("content_warning"),
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visibility=form.cleaned_data["visibility"],
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attachments=attachments,
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)
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self.post_obj.transition_perform(PostStates.edited)
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else:
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post = Post.create_local(
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author=self.request.identity,
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content=form.cleaned_data["text"],
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summary=form.cleaned_data.get("content_warning"),
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visibility=form.cleaned_data["visibility"],
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reply_to=self.reply_to,
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attachments=attachments,
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)
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# Add their own timeline event for immediate visibility
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TimelineEvent.add_post(self.request.identity, post)
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return redirect("/")
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def dispatch(self, request, handle=None, post_id=None, *args, **kwargs):
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self.post_obj = None
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if handle and post_id:
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# Make sure the request identity owns the post!
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if handle != request.identity.handle:
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raise PermissionDenied("Post author is not requestor")
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self.post_obj = get_object_or_404(request.identity.posts, pk=post_id)
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# Grab the reply-to post info now
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self.reply_to = None
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reply_to_id = request.POST.get("reply_to") or request.GET.get("reply_to")
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if reply_to_id:
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try:
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self.reply_to = Post.objects.get(pk=reply_to_id)
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except Post.DoesNotExist:
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pass
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# Keep going with normal rendering
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return super().dispatch(request, *args, **kwargs)
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def get_context_data(self, **kwargs):
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context = super().get_context_data(**kwargs)
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context["reply_to"] = self.reply_to
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if self.post_obj:
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context["post"] = self.post_obj
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return context
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@method_decorator(identity_required, name="dispatch")
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class ImageUpload(FormView):
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"""
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Handles image upload - returns a new input type hidden to embed in
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the main form that references an orphaned PostAttachment
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"""
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template_name = "activities/_image_upload.html"
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class form_class(forms.Form):
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image = forms.ImageField()
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description = forms.CharField(required=False)
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def clean_image(self):
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value = self.cleaned_data["image"]
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max_mb = settings.SETUP.MEDIA_MAX_IMAGE_FILESIZE_MB
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max_bytes = max_mb * 1024 * 1024
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if value.size > max_bytes:
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# Erase the file from our data to stop trying to show it again
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self.files = {}
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raise forms.ValidationError(f"File must be {max_mb}MB or less")
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return value
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def form_invalid(self, form):
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return super().form_invalid(form)
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def form_valid(self, form):
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# Make a PostAttachment
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main_file = resize_image(
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form.cleaned_data["image"],
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size=(2000, 2000),
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cover=False,
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)
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thumbnail_file = resize_image(
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form.cleaned_data["image"],
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size=(400, 225),
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cover=True,
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)
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attachment = PostAttachment.objects.create(
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blurhash=blurhash_image(thumbnail_file),
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mimetype="image/webp",
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width=main_file.image.width,
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height=main_file.image.height,
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name=form.cleaned_data.get("description"),
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state=PostAttachmentStates.fetched,
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)
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attachment.file.save(
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main_file.name,
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main_file,
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)
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attachment.thumbnail.save(
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thumbnail_file.name,
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thumbnail_file,
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)
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attachment.save()
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# Return the response, with a hidden input plus a note
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return render(
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self.request, "activities/_image_uploaded.html", {"attachment": attachment}
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)
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