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""" |
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byceps.blueprints.site.user.avatar.views |
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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:Copyright: 2006-2021 Jochen Kupperschmidt |
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:License: Revised BSD (see `LICENSE` file for details) |
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""" |
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from flask import abort, g, request |
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from flask_babel import gettext |
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from .....services.image import service as image_service |
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from .....services.user_avatar import service as avatar_service |
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from .....signals import user_avatar as user_avatar_signals |
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from .....util.framework.blueprint import create_blueprint |
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from .....util.framework.flash import flash_notice, flash_success |
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from .....util.image.models import ImageType |
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from .....util.framework.templating import templated |
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from .....util.views import redirect_to, respond_no_content |
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from .forms import UpdateForm |
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blueprint = create_blueprint('user_avatar', __name__) |
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ALLOWED_IMAGE_TYPES = frozenset( |
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[ |
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ImageType.jpeg, |
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ImageType.png, |
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] |
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) |
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@blueprint.get('/me/avatar/update') |
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@templated |
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def update_form(erroneous_form=None): |
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"""Show a form to update the current user's avatar image.""" |
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_get_current_user_or_404() |
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form = erroneous_form if erroneous_form else UpdateForm() |
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image_type_names = image_service.get_image_type_names(ALLOWED_IMAGE_TYPES) |
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return { |
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'form': form, |
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'allowed_types': image_type_names, |
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'maximum_dimensions': avatar_service.MAXIMUM_DIMENSIONS, |
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} |
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@blueprint.post('/me/avatar') |
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def update(): |
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"""Update the current user's avatar image.""" |
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user = _get_current_user_or_404() |
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# Make `InputRequired` work on `FileField`. |
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form_fields = request.form.copy() |
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if request.files: |
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form_fields.update(request.files) |
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form = UpdateForm(form_fields) |
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if not form.validate(): |
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return update_form(form) |
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image = request.files.get('image') |
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_update(user.id, image) |
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flash_success(gettext('Avatar image has been updated.'), icon='upload') |
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user_avatar_signals.avatar_updated.send(None, user_id=user.id) |
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return redirect_to('user_settings.view') |
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def _update(user_id, image): |
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if not image or not image.filename: |
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abort(400, 'No file to upload has been specified.') |
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try: |
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avatar_service.update_avatar_image( |
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user_id, image.stream, ALLOWED_IMAGE_TYPES |
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) |
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except avatar_service.ImageTypeProhibited as e: |
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abort(400, str(e)) |
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except FileExistsError: |
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abort(409, 'File already exists, not overwriting.') |
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@blueprint.delete('/me/avatar') |
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@respond_no_content |
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def delete(): |
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"""Remove the current user's avatar image.""" |
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user = _get_current_user_or_404() |
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try: |
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avatar_service.remove_avatar_image(user.id) |
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except ValueError: |
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# No avatar selected. |
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# But that's ok, deletions should be idempotent. |
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flash_notice(gettext('No avatar image is set that could be removed.')) |
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else: |
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flash_success(gettext('Avatar image has been removed.')) |
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def _get_current_user_or_404(): |
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user = g.user |
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if not user.authenticated: |
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abort(404) |
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return user |
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byceps /
byceps
