from flask import request, g from flask_login import current_user from flask_wtf import FlaskForm from wtforms import StringField, SubmitField, TextAreaField, BooleanField, HiddenField, SelectField, FileField, \ DateField from wtforms.validators import ValidationError, DataRequired, Email, EqualTo, Length, Regexp, Optional from flask_babel import _, lazy_gettext as _l from app import db from app.models import Community, utcnow from app.utils import domain_from_url, MultiCheckboxField from PIL import Image, ImageOps from io import BytesIO import pytesseract class AddCommunityForm(FlaskForm): community_name = StringField(_l('Name'), validators=[DataRequired()]) url = StringField(_l('Url')) description = TextAreaField(_l('Description')) icon_file = FileField(_('Icon image')) banner_file = FileField(_('Banner image')) rules = TextAreaField(_l('Rules')) nsfw = BooleanField('NSFW') local_only = BooleanField('Local only') submit = SubmitField(_l('Create')) def validate(self, extra_validators=None): if not super().validate(): return False if self.url.data.strip() == '': self.url.errors.append(_('Url is required.')) return False else: if '-' in self.url.data.strip(): self.url.errors.append(_('- cannot be in Url. Use _ instead?')) return False return True class EditCommunityForm(FlaskForm): title = StringField(_l('Title'), validators=[DataRequired()]) description = TextAreaField(_l('Description')) icon_file = FileField(_('Icon image')) banner_file = FileField(_('Banner image')) rules = TextAreaField(_l('Rules')) nsfw = BooleanField(_l('Porn community')) local_only = BooleanField(_l('Only accept posts from current instance')) restricted_to_mods = BooleanField(_l('Only moderators can post')) new_mods_wanted = BooleanField(_l('New moderators wanted')) topic = SelectField(_l('Topic'), coerce=int, validators=[Optional()]) layouts = [('', _l('List')), ('masonry', _l('Masonry')), ('masonry_wide', _l('Wide masonry'))] default_layout = SelectField(_l('Layout'), coerce=str, choices=layouts, validators=[Optional()]) submit = SubmitField(_l('Save')) class AddModeratorForm(FlaskForm): user_name = StringField(_l('User name'), validators=[DataRequired()]) submit = SubmitField(_l('Add')) class EscalateReportForm(FlaskForm): reason = StringField(_l('Amend the report description if necessary'), validators=[DataRequired()]) submit = SubmitField(_l('Escalate report')) class ResolveReportForm(FlaskForm): note = StringField(_l('Note for mod log'), validators=[Optional()]) also_resolve_others = BooleanField(_l('Also resolve all other reports about the same thing.'), default=True) submit = SubmitField(_l('Resolve report')) class SearchRemoteCommunity(FlaskForm): address = StringField(_l('Community address'), render_kw={'placeholder': 'e.g. !name@server', 'autofocus': True}, validators=[DataRequired()]) submit = SubmitField(_l('Search')) class BanUserCommunityForm(FlaskForm): reason = StringField(_l('Reason'), render_kw={'autofocus': True}, validators=[DataRequired()]) ban_until = DateField(_l('Ban until'), validators=[Optional()]) delete_posts = BooleanField(_l('Also delete all their posts')) delete_post_replies = BooleanField(_l('Also delete all their comments')) submit = SubmitField(_l('Ban')) class CreatePostForm(FlaskForm): communities = SelectField(_l('Community'), validators=[DataRequired()], coerce=int) post_type = HiddenField() # https://getbootstrap.com/docs/4.6/components/navs/#tabs discussion_title = StringField(_l('Title'), validators=[Optional(), Length(min=3, max=255)]) discussion_body = TextAreaField(_l('Body'), validators=[Optional(), Length(min=3, max=5000)], render_kw={'placeholder': 'Text (optional)'}) link_title = StringField(_l('Title'), validators=[Optional(), Length(min=3, max=255)]) link_body = TextAreaField(_l('Body'), validators=[Optional(), Length(min=3, max=5000)], render_kw={'placeholder': 'Text (optional)'}) link_url = StringField(_l('URL'), validators=[Optional(), Regexp(r'^https?://', message='Submitted links need to start with "http://"" or "https://"')], render_kw={'placeholder': 'https://...'}) image_title = StringField(_l('Title'), validators=[Optional(), Length(min=3, max=255)]) image_alt_text = StringField(_l('Alt text'), validators=[Optional(), Length(min=3, max=255)]) image_body = TextAreaField(_l('Body'), validators=[Optional(), Length(min=3, max=5000)], render_kw={'placeholder': 'Text (optional)'}) image_file = FileField(_('Image')) # flair = SelectField(_l('Flair'), coerce=int) sticky = BooleanField(_l('Sticky')) nsfw = BooleanField(_l('NSFW')) nsfl = BooleanField(_l('Gore/gross')) notify_author = BooleanField(_l('Notify about replies')) submit = SubmitField(_l('Save')) def validate(self, extra_validators=None) -> bool: if not super().validate(): return False if self.post_type.data is None or self.post_type.data == '': self.post_type.data = 'discussion' if self.post_type.data == 'discussion': if self.discussion_title.data == '': self.discussion_title.errors.append(_('Title is required.')) return False elif self.post_type.data == 'link': if self.link_title.data == '': self.link_title.errors.append(_('Title is required.')) return False if self.link_url.data == '': self.link_url.errors.append(_('URL is required.')) return False domain = domain_from_url(self.link_url.data, create=False) if domain and domain.banned: self.link_url.errors.append(_("Links to %(domain)s are not allowed.", domain=domain.name)) return False elif self.post_type.data == 'image': if self.image_title.data == '': self.image_title.errors.append(_('Title is required.')) return False if self.image_file.data == '': self.image_file.errors.append(_('File is required.')) return False uploaded_file = request.files['image_file'] if uploaded_file and uploaded_file.filename != '': Image.MAX_IMAGE_PIXELS = 89478485 # Do not allow fascist meme content try: image_text = pytesseract.image_to_string(Image.open(BytesIO(uploaded_file.read())).convert('L')) except FileNotFoundError as e: image_text = '' if 'Anonymous' in image_text and ('No.' in image_text or ' N0' in image_text): # chan posts usually contain the text 'Anonymous' and ' No.12345' self.image_file.errors.append(f"This image is an invalid file type.") # deliberately misleading error message current_user.reputation -= 1 db.session.commit() return False if self.communities: community = Community.query.get(self.communities.data) if community.is_local() and g.site.allow_local_image_posts is False: self.communities.errors.append(_('Images cannot be posted to local communities.')) elif self.post_type.data == 'poll': self.discussion_title.errors.append(_('Poll not implemented yet.')) return False return True class ReportCommunityForm(FlaskForm): reason_choices = [('1', _l('Breaks instance rules')), ('2', _l('Abandoned by moderators')), ('3', _l('Cult')), ('4', _l('Scam')), ('5', _l('Alt-right pipeline')), ('6', _l('Hate / genocide')), ('7', _l('Other')), ] reasons = MultiCheckboxField(_l('Reason'), choices=reason_choices) description = StringField(_l('More info')) report_remote = BooleanField('Also send report to originating instance') submit = SubmitField(_l('Report')) def reasons_to_string(self, reason_data) -> str: result = [] for reason_id in reason_data: for choice in self.reason_choices: if choice[0] == reason_id: result.append(str(choice[1])) return ', '.join(result) class DeleteCommunityForm(FlaskForm): submit = SubmitField(_l('Delete community'))