demarches-normaliennes/app/components/attachment/edit_component.rb

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# Display a widget for uploading, editing and deleting a file attachment
class Attachment::EditComponent < ApplicationComponent
attr_reader :champ
attr_reader :attachment
attr_reader :user_can_destroy
alias user_can_destroy? user_can_destroy
attr_reader :as_multiple
alias as_multiple? as_multiple
EXTENSIONS_ORDER = ['jpeg', 'png', 'pdf', 'zip'].freeze
def initialize(champ: nil, auto_attach_url: nil, attached_file:, direct_upload: true, index: 0, as_multiple: false, view_as: :link, user_can_destroy: true, **kwargs)
@as_multiple = as_multiple
@attached_file = attached_file
@auto_attach_url = auto_attach_url
@champ = champ
@direct_upload = direct_upload
@index = index
@view_as = view_as
@user_can_destroy = user_can_destroy
# attachment passed by kwarg because we don't want a default (nil) value.
@attachment = if kwargs.key?(:attachment)
kwargs.delete(:attachment)
elsif attached_file.respond_to?(:attachment)
attached_file.attachment
else
fail ArgumentError, "You must pass an `attachment` kwarg when not using as single attachment like in #{attached_file.name}. Set it to nil for a new attachment."
end
# When parent form has nested attributes, pass the form builder object_name
# to correctly infer the input attribute name.
@form_object_name = kwargs.delete(:form_object_name)
verify_initialization!(kwargs)
end
def first?
@index.zero?
end
def max_file_size
return if file_size_validator.nil?
file_size_validator.options[:less_than]
end
def attachment_id
@attachment_id ||= (attachment&.id || SecureRandom.uuid)
end
def attachment_path(**args)
helpers.attachment_path attachment.id, args.merge(signed_id: attachment.blob.signed_id)
end
def destroy_attachment_path
attachment_path(champ_id: champ&.id)
end
def attachment_input_class
"attachment-input-#{attachment_id}"
end
def file_field_options
track_issue_with_missing_validators if missing_validators?
{
class: "fr-upload attachment-input #{attachment_input_class} #{persisted? ? 'hidden' : ''}",
direct_upload: @direct_upload,
id: input_id,
aria: { describedby: champ&.describedby_id },
data: {
auto_attach_url:
}.merge(has_file_size_validator? ? { max_file_size: } : {})
}.merge(has_content_type_validator? ? { accept: accept_content_type } : {})
end
def poll_url
if champ.present?
auto_attach_url
else
attachment_path(user_can_edit: true, view_as: @view_as, auto_attach_url: @auto_attach_url)
end
end
def poll_context
return :dossier if champ.present?
nil
end
def field_name
helpers.field_name(@form_object_name || ActiveModel::Naming.param_key(@attached_file.record), attribute_name)
end
def attribute_name
@attached_file.name
end
def remove_button_options
{
role: 'button',
data: { turbo: "true", turbo_method: :delete }
}
end
def retry_button_options
{
type: 'button',
class: 'fr-btn fr-btn--sm fr-btn--tertiary fr-mt-1w attachment-upload-error-retry',
data: { input_target: ".#{attachment_input_class}", action: 'autosave#onClickRetryButton' }
}
end
def persisted?
!!attachment&.persisted?
end
def downloadable?
return false unless @view_as == :download
viewable?
end
def viewable?
return false if attachment.virus_scanner_error?
return false if attachment.watermark_pending?
true
end
def error?
attachment.virus_scanner_error?
end
def error_message
case
when attachment.virus_scanner.infected?
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t(".errors.virus_infected")
when attachment.virus_scanner.corrupt?
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t(".errors.corrupted_file")
end
end
private
def input_id
if champ.present?
# There is always a single input by champ, its id must match the label "for" attribute.
return champ.input_id
end
helpers.field_id(@form_object_name || @attached_file.record, attribute_name)
end
def auto_attach_url
return @auto_attach_url if @auto_attach_url.present?
return helpers.auto_attach_url(@champ) if @champ.present?
nil
end
def file_size_validator
@attached_file.record
._validators[attribute_name.to_sym]
.find { |validator| validator.class == ActiveStorageValidations::SizeValidator }
end
def content_type_validator
@attached_file.record
._validators[attribute_name.to_sym]
.find { |validator| validator.class == ActiveStorageValidations::ContentTypeValidator }
end
def accept_content_type
list = content_type_validator.options[:in].dup
list << ".acidcsa" if list.include?("application/octet-stream")
list.join(', ')
end
def allowed_formats
return nil unless champ&.titre_identite?
@allowed_formats ||= begin
content_type_validator.options[:in].filter_map do |content_type|
MiniMime.lookup_by_content_type(content_type)&.extension
end.uniq.sort_by { EXTENSIONS_ORDER.index(_1) || 999 }
end
end
def has_content_type_validator?
!content_type_validator.nil?
end
def has_file_size_validator?
!file_size_validator.nil?
end
def missing_validators?
return true if !has_file_size_validator?
return true if !has_content_type_validator?
return false
end
def verify_initialization!(kwargs)
fail ArgumentError, "Unknown kwarg #{kwargs.keys.join(', ')}" unless kwargs.empty?
fail ArgumentError, "Invalid view_as:#{@view_as}, must be :download or :link" if [:download, :link].exclude?(@view_as)
end
def track_issue_with_missing_validators
Sentry.capture_message(
"Strange case of missing validator",
extra: {
champ: champ,
field_name: field_name,
attachment_id: attachment_id
}
)
end
end