Chatwoot/app/models/attachment.rb
Tejaswini Chile 7dc790a7e0
fix: Automatically remove expired story mention (#5300)
When a user mentions the connected Instagram page in a story, the story's content is downloaded in Chatwoot, then if the user deletes the story, the content persists in the platform.

fixes: #5258
2022-12-08 15:55:24 +03:00

135 lines
3.7 KiB
Ruby

# == Schema Information
#
# Table name: attachments
#
# id :integer not null, primary key
# coordinates_lat :float default(0.0)
# coordinates_long :float default(0.0)
# extension :string
# external_url :string
# fallback_title :string
# file_type :integer default("image")
# created_at :datetime not null
# updated_at :datetime not null
# account_id :integer not null
# message_id :integer not null
#
# Indexes
#
# index_attachments_on_account_id (account_id)
# index_attachments_on_message_id (message_id)
#
class Attachment < ApplicationRecord
include Rails.application.routes.url_helpers
ACCEPTABLE_FILE_TYPES = %w[
text/csv text/plain text/rtf
application/json application/pdf
application/zip application/x-7z-compressed application/vnd.rar application/x-tar
application/msword application/vnd.ms-excel application/vnd.ms-powerpoint application/rtf
application/vnd.oasis.opendocument.text
application/vnd.openxmlformats-officedocument.presentationml.presentation
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
application/vnd.openxmlformats-officedocument.wordprocessingml.document
].freeze
belongs_to :account
belongs_to :message
has_one_attached :file
validate :acceptable_file
enum file_type: [:image, :audio, :video, :file, :location, :fallback, :share, :story_mention]
def push_event_data
return unless file_type
return base_data.merge(location_metadata) if file_type.to_sym == :location
return base_data.merge(fallback_data) if file_type.to_sym == :fallback
base_data.merge(file_metadata)
end
# NOTE: the URl returned does a 301 redirect to the actual file
def file_url
file.attached? ? url_for(file) : ''
end
# NOTE: for External services use this methods since redirect doesn't work effectively in a lot of cases
def download_url
ActiveStorage::Current.host = Rails.application.routes.default_url_options[:host] if ActiveStorage::Current.host.blank?
file.attached? ? file.blob.url : ''
end
def thumb_url
if file.attached? && file.representable?
url_for(file.representation(resize: '250x250'))
else
''
end
end
private
def file_metadata
metadata = {
extension: extension,
data_url: file_url,
thumb_url: thumb_url,
file_size: file.byte_size
}
metadata[:data_url] = metadata[:thumb_url] = external_url if message.instagram_story_mention?
metadata
end
def location_metadata
{
coordinates_lat: coordinates_lat,
coordinates_long: coordinates_long,
fallback_title: fallback_title,
data_url: external_url
}
end
def fallback_data
{
fallback_title: fallback_title,
data_url: external_url
}
end
def base_data
{
id: id,
message_id: message_id,
file_type: file_type,
account_id: account_id
}
end
def should_validate_file?
return unless file.attached?
# we are only limiting attachment types in case of website widget
return unless message.inbox.channel_type == 'Channel::WebWidget'
true
end
def acceptable_file
return unless should_validate_file?
validate_file_size(file.byte_size)
validate_file_content_type(file.content_type)
end
def validate_file_content_type(file_content_type)
errors.add(:file, 'type not supported') unless media_file?(file_content_type) || ACCEPTABLE_FILE_TYPES.include?(file_content_type)
end
def validate_file_size(byte_size)
errors.add(:file, 'size is too big') if byte_size > 40.megabytes
end
def media_file?(file_content_type)
file_content_type.start_with?('image/', 'video/', 'audio/')
end
end