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|
# frozen_string_literal: true
module Gitlab
module BackgroundMigration
module PopulateUntrackedUploadsDependencies
# This class is responsible for producing the attributes necessary to
# track an uploaded file in the `uploads` table.
class UntrackedFile < ActiveRecord::Base # rubocop:disable Metrics/ClassLength
self.table_name = 'untracked_files_for_uploads'
# Ends with /:random_hex/:filename
FILE_UPLOADER_PATH = %r{/\h+/[^/]+\z}.freeze
FULL_PATH_CAPTURE = /\A(.+)#{FILE_UPLOADER_PATH}/.freeze
# These regex patterns are tested against a relative path, relative to
# the upload directory.
# For convenience, if there exists a capture group in the pattern, then
# it indicates the model_id.
PATH_PATTERNS = [
{
pattern: %r{\A-/system/appearance/logo/(\d+)/},
uploader: 'AttachmentUploader',
model_type: 'Appearance'
},
{
pattern: %r{\A-/system/appearance/header_logo/(\d+)/},
uploader: 'AttachmentUploader',
model_type: 'Appearance'
},
{
pattern: %r{\A-/system/note/attachment/(\d+)/},
uploader: 'AttachmentUploader',
model_type: 'Note'
},
{
pattern: %r{\A-/system/user/avatar/(\d+)/},
uploader: 'AvatarUploader',
model_type: 'User'
},
{
pattern: %r{\A-/system/group/avatar/(\d+)/},
uploader: 'AvatarUploader',
model_type: 'Namespace'
},
{
pattern: %r{\A-/system/project/avatar/(\d+)/},
uploader: 'AvatarUploader',
model_type: 'Project'
},
{
pattern: FILE_UPLOADER_PATH,
uploader: 'FileUploader',
model_type: 'Project'
}
].freeze
def to_h
@upload_hash ||= {
path: upload_path,
uploader: uploader,
model_type: model_type,
model_id: model_id,
size: file_size,
checksum: checksum
}
end
def upload_path
# UntrackedFile#path is absolute, but Upload#path depends on uploader
@upload_path ||=
if uploader == 'FileUploader'
# Path relative to project directory in uploads
matchd = path_relative_to_upload_dir.match(FILE_UPLOADER_PATH)
matchd[0].sub(%r{\A/}, '') # remove leading slash
else
path
end
end
def uploader
matching_pattern_map[:uploader]
end
def model_type
matching_pattern_map[:model_type]
end
def model_id
return @model_id if defined?(@model_id)
pattern = matching_pattern_map[:pattern]
matchd = path_relative_to_upload_dir.match(pattern)
# If something is captured (matchd[1] is not nil), it is a model_id
# Only the FileUploader pattern will not match an ID
@model_id = matchd[1] ? matchd[1].to_i : file_uploader_model_id
end
def file_size
File.size(absolute_path)
end
def checksum
Digest::SHA256.file(absolute_path).hexdigest
end
private
def matching_pattern_map
@matching_pattern_map ||= PATH_PATTERNS.find do |path_pattern_map|
path_relative_to_upload_dir.match(path_pattern_map[:pattern])
end
unless @matching_pattern_map
raise "Unknown upload path pattern \"#{path}\""
end
@matching_pattern_map
end
def file_uploader_model_id
matchd = path_relative_to_upload_dir.match(FULL_PATH_CAPTURE)
not_found_msg = <<~MSG
Could not capture project full_path from a FileUploader path:
"#{path_relative_to_upload_dir}"
MSG
raise not_found_msg unless matchd
full_path = matchd[1]
project = Gitlab::BackgroundMigration::PopulateUntrackedUploadsDependencies::Project.find_by_full_path(full_path)
return unless project
project.id
end
# Not including a leading slash
def path_relative_to_upload_dir
upload_dir = Gitlab::BackgroundMigration::PrepareUntrackedUploads::RELATIVE_UPLOAD_DIR
base = %r{\A#{Regexp.escape(upload_dir)}/}
@path_relative_to_upload_dir ||= path.sub(base, '')
end
def absolute_path
File.join(Gitlab.config.uploads.storage_path, path)
end
end
# Avoid using application code
class Upload < ActiveRecord::Base
self.table_name = 'uploads'
end
# Avoid using application code
class Appearance < ActiveRecord::Base
self.table_name = 'appearances'
end
# Avoid using application code
class Namespace < ActiveRecord::Base
self.table_name = 'namespaces'
end
# Avoid using application code
class Note < ActiveRecord::Base
self.table_name = 'notes'
end
# Avoid using application code
class User < ActiveRecord::Base
self.table_name = 'users'
end
# Since project Markdown upload paths don't contain the project ID, we have to find the
# project by its full_path. Due to MySQL/PostgreSQL differences, and historical reasons,
# the logic is somewhat complex, so I've mostly copied it in here.
class Project < ActiveRecord::Base
self.table_name = 'projects'
def self.find_by_full_path(path)
order_sql = "(CASE WHEN routes.path = #{connection.quote(path)} THEN 0 ELSE 1 END)"
where_full_path_in(path).reorder(order_sql).take
end
def self.where_full_path_in(path)
where = "(LOWER(routes.path) = LOWER(#{connection.quote(path)}))"
joins("INNER JOIN routes ON routes.source_id = projects.id AND routes.source_type = 'Project'").where(where)
end
end
end
end
end
|
