123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133 |
- # Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
- class Store
- class File < ApplicationModel
- include ApplicationLib
- after_destroy :destroy_provider
- =begin
- add new file to store
- store_file_id = Store::File.add(binary_data)
- =end
- def self.add(data)
- sha = Digest::SHA256.hexdigest( data )
- file = Store::File.find_by( sha: sha )
- if file.nil?
- # load backend based on config
- adapter_name = Setting.get('storage_provider') || 'DB'
- if !adapter_name
- fail 'Missing storage_provider setting option'
- end
- adapter = load_adapter( "Store::Provider::#{adapter_name}" )
- adapter.add( data, sha )
- file = Store::File.create(
- provider: adapter_name,
- sha: sha,
- )
- end
- file
- end
- =begin
- read content of a file
- store = Store::File.find(123)
- store.content # returns binary
- =end
- def content
- adapter = self.class.load_adapter("Store::Provider::#{provider}")
- if sha
- c = adapter.get( sha )
- else
- # fallback until migration is done
- c = Store::Provider::DB.find_by( md5: md5 ).data
- end
- c
- end
- =begin
- file system check of store, check data and sha (in case fix it)
- Store::File.verify
- read each file which should be in backend and verify agsinst sha hash
- in case of fixing sha hash use:
- Store::File.verify(true)
- =end
- def self.verify(fix_it = nil)
- success = true
- Store::File.all.each {|item|
- content = item.content
- sha = Digest::SHA256.hexdigest( content )
- logger.info "CHECK: Store::File.find(#{item.id}) "
- next if sha == item.sha
- success = false
- logger.error "DIFF: sha diff of Store::File.find(#{item.id}) "
- if fix_it
- item.update_attribute( :sha, sha )
- end
- }
- success
- end
- =begin
- move file from one to other provider
- move files from file backend to db
- Store::File.move('File', 'DB')
- move files from db backend to fs
- Store::File.move('DB', 'File')
- =end
- def self.move(source, target)
- adapter_source = load_adapter("Store::Provider::#{source}")
- adapter_target = load_adapter("Store::Provider::#{target}")
- Store::File.all.each {|item|
- next if item.provider == target
- content = item.content
- # add to new provider
- adapter_target.add( content, item.sha )
- # update meta data
- item.update_attribute( :provider, target )
- # remove from old provider
- adapter_source.delete( item.sha )
- logger.info "Moved file #{item.sha} from #{source} to #{target}"
- }
- true
- end
- private
- def destroy_provider
- adapter = self.class.load_adapter("Store::Provider::#{provider}")
- adapter.delete( sha )
- end
- end
- end
|