discourse/app/models/user_avatar.rb

166 lines
5.0 KiB
Ruby

require_dependency 'letter_avatar'
require_dependency 'upload_creator'
class UserAvatar < ActiveRecord::Base
belongs_to :user
belongs_to :gravatar_upload, class_name: 'Upload', dependent: :destroy
belongs_to :custom_upload, class_name: 'Upload', dependent: :destroy
def contains_upload?(id)
gravatar_upload_id == id || custom_upload_id == id
end
def update_gravatar!
DistributedMutex.synchronize("update_gravatar_#{user_id}") do
begin
self.update!(last_gravatar_download_attempt: Time.now)
max = Discourse.avatar_sizes.max
email_hash = user_id == Discourse::SYSTEM_USER_ID ? User.email_hash("info@discourse.org") : user.email_hash
gravatar_url = "https://www.gravatar.com/avatar/#{email_hash}.png?s=#{max}&d=404"
# follow redirects in case gravatar change rules on us
tempfile = FileHelper.download(
gravatar_url,
max_file_size: SiteSetting.max_image_size_kb.kilobytes,
tmp_file_name: "gravatar",
skip_rate_limit: true,
verbose: false,
follow_redirect: true
)
if tempfile
ext = File.extname(tempfile)
ext = '.png' if ext.blank?
upload = UploadCreator.new(
tempfile,
"gravatar#{ext}",
origin: gravatar_url,
type: "avatar"
).create_for(user_id)
if gravatar_upload_id != upload.id
User.transaction do
if gravatar_upload_id && user.uploaded_avatar_id == gravatar_upload_id
user.update!(uploaded_avatar_id: upload.id)
end
gravatar_upload&.destroy!
self.update!(gravatar_upload: upload)
end
end
end
rescue OpenURI::HTTPError => e
if e.io&.status[0].to_i != 404
raise e
end
ensure
tempfile&.close!
end
end
end
def self.local_avatar_url(hostname, username, upload_id, size)
self.local_avatar_template(hostname, username, upload_id).gsub("{size}", size.to_s)
end
def self.local_avatar_template(hostname, username, upload_id)
version = self.version(upload_id)
"#{Discourse.base_uri}/user_avatar/#{hostname}/#{username}/{size}/#{version}.png"
end
def self.external_avatar_url(user_id, upload_id, size)
self.external_avatar_template(user_id, upload_id).gsub("{size}", size.to_s)
end
def self.external_avatar_template(user_id, upload_id)
version = self.version(upload_id)
"#{Discourse.store.absolute_base_url}/avatars/#{user_id}/{size}/#{version}.png"
end
def self.version(upload_id)
"#{upload_id}_#{OptimizedImage::VERSION}"
end
def self.import_url_for_user(avatar_url, user, options = nil)
tempfile = FileHelper.download(
avatar_url,
max_file_size: SiteSetting.max_image_size_kb.kilobytes,
tmp_file_name: "sso-avatar",
follow_redirect: true
)
return unless tempfile
ext = FastImage.type(tempfile).to_s
tempfile.rewind
upload = UploadCreator.new(tempfile, "external-avatar." + ext, origin: avatar_url, type: "avatar").create_for(user.id)
user.create_user_avatar! unless user.user_avatar
if !user.user_avatar.contains_upload?(upload.id)
user.user_avatar.update!(custom_upload_id: upload.id)
override_gravatar = !options || options[:override_gravatar]
if user.uploaded_avatar_id.nil? ||
!user.user_avatar.contains_upload?(user.uploaded_avatar_id) ||
override_gravatar
user.update!(uploaded_avatar_id: upload.id)
end
end
rescue Net::ReadTimeout, OpenURI::HTTPError
# skip saving, we are not connected to the net
ensure
tempfile.close! if tempfile && tempfile.respond_to?(:close!)
end
def self.ensure_consistency!
DB.exec <<~SQL
UPDATE user_avatars
SET gravatar_upload_id = NULL
WHERE gravatar_upload_id IN (
SELECT u1.gravatar_upload_id FROM user_avatars u1
LEFT JOIN uploads up
ON u1.gravatar_upload_id = up.id
WHERE u1.gravatar_upload_id IS NOT NULL AND
up.id IS NULL
)
SQL
DB.exec <<~SQL
UPDATE user_avatars
SET custom_upload_id = NULL
WHERE custom_upload_id IN (
SELECT u1.custom_upload_id FROM user_avatars u1
LEFT JOIN uploads up
ON u1.custom_upload_id = up.id
WHERE u1.custom_upload_id IS NOT NULL AND
up.id IS NULL
)
SQL
end
end
# == Schema Information
#
# Table name: user_avatars
#
# id :integer not null, primary key
# user_id :integer not null
# custom_upload_id :integer
# gravatar_upload_id :integer
# last_gravatar_download_attempt :datetime
# created_at :datetime not null
# updated_at :datetime not null
#
# Indexes
#
# index_user_avatars_on_custom_upload_id (custom_upload_id)
# index_user_avatars_on_gravatar_upload_id (gravatar_upload_id)
# index_user_avatars_on_user_id (user_id)
#