Moved to dedicated provider backend modules.

This commit is contained in:
Martin Edenhofer 2014-05-03 14:34:36 +02:00
parent c01df40abf
commit 7742c66604
14 changed files with 297 additions and 201 deletions

View file

@ -2,7 +2,11 @@
require 'digest/md5'
class Store < ApplicationModel
require 'store/object'
require 'store/file'
store :preferences
belongs_to :store_object, :class_name => 'Store::Object'
belongs_to :store_file, :class_name => 'Store::File'
@ -35,28 +39,10 @@ returns
store_object = Store::Object.create_if_not_exists( :name => data['object'] )
data['store_object_id'] = store_object.id
# check if record already exists
# store = Store.where( :store_object_id => store_object.id, :o_id => data['o_id'], ).first
# if store != nil
# return store
# end
# add to real store
file = Store::File.add( data['data'] )
# check real store
md5 = Digest::MD5.hexdigest( data['data'] )
data['size'] = data['data'].to_s.bytesize
# file = Store::Provider::DB.create( data['data'], md5 )
file = Store::File.where( :md5 => md5 ).first
# store attachment
if file == nil
file = Store::File.create(
:data => data['data'],
:md5 => md5,
)
end
data['store_file_id'] = file.id
# not needed attributes
@ -128,7 +114,6 @@ returns
# check backend for references
files = Store.where( :store_file_id => store.store_file_id )
if files.count == 1 && files.first.id == store.id
# file = Store::Provider::DB.delete( store.store_file_id )
Store::File.find( store.store_file_id ).destroy
end
@ -137,165 +122,19 @@ returns
return true
end
# get attachment
def content
# Store::Provider::DB.content( store.store_file_id )
file = Store::File.where( :id => self.store_file_id ).first
return if !file
if file.file_system
return file.read_from_fs
end
file.data
end
end
class Store::Object < ApplicationModel
validates :name, :presence => true
end
class Store::File < ApplicationModel
before_validation :add_md5
before_create :check_location
after_destroy :unlink_location
# generate file location
def get_locaton
# generate directory
base = Rails.root.to_s + '/storage/fs/'
parts = self.md5.scan(/.{1,3}/)
path = parts[ 1 .. 7 ].join('/') + '/'
file = parts[ 8 .. parts.count ].join('')
location = "#{base}/#{path}"
# create directory if not exists
if !File.exist?( location )
FileUtils.mkdir_p( location )
end
location += file
end
# read file from fs
def unlink_location
if File.exist?( self.get_locaton )
puts "NOTICE: storge remove '#{self.get_locaton}'"
File.delete( self.get_locaton )
end
end
# read file from fs
def read_from_fs
puts "read from fs #{self.get_locaton}"
return if !File.exist?( self.get_locaton )
data = File.open( self.get_locaton, 'rb' )
content = data.read
# check md5
md5 = Digest::MD5.hexdigest( content )
if md5 != self.md5
raise "ERROR: Corrupt file in fs #{self.get_locaton}, md5 should be #{self.md5} but is #{md5}"
end
content
end
# write file to fs
def write_to_fs
# install file
permission = '600'
if !File.exist?( self.get_locaton )
puts "NOTICE: storge write '#{self.get_locaton}' (#{permission})"
file = File.new( self.get_locaton, 'wb' )
file.write( self.data )
file.close
end
File.chmod( permission.to_i(8), self.get_locaton )
# check md5
md5 = Digest::MD5.hexdigest( self.read_from_fs )
if md5 != self.md5
raise "ERROR: Corrupt file in fs #{self.get_locaton}, md5 should be #{self.md5} but is #{md5}"
end
true
end
# write file to db
def write_to_db
# read and check md5
content = self.read_from_fs
# store in database
self.data = content
self.save
# check md5 against db content
md5 = Digest::MD5.hexdigest( self.data )
if md5 != self.md5
raise "ERROR: Corrupt file in db #{self.get_locaton}, md5 should be #{self.md5} but is #{md5}"
end
true
end
# check database data and md5, in case fix it
def self.db_check_md5(fix_it = nil)
Store::File.where( :file_system => false ).each {|item|
md5 = Digest::MD5.hexdigest( item.data )
if md5 != item.md5
puts "DIFF: md5 diff of Store::File.find(#{item.id}) "
if fix_it
item.update_attribute( :md5, md5 )
end
end
}
true
end
def self.fs_check_md5(fix_it = nil)
Store::File.where( :file_system => true ).each {|item|
md5 = Digest::MD5.hexdigest( item.read_from_fs )
if md5 != item.md5
puts "DIFF: md5 diff of Store::File.find(#{item.id}) "
if fix_it
item.update_attribute( :md5, md5 )
end
end
}
true
end
def self.move_to_fs
Store::File.where( :file_system => false ).each {|item|
item.write_to_fs
item.update_attribute( :file_system, true )
item.update_attribute( :data, nil )
}
end
def self.move_to_db
Store::File.where( :file_system => true ).each {|item|
item.write_to_db
item.update_attribute( :file_system, false )
item.unlink_location
}
end
private
def check_location
# write initial to fs if needed
if self.file_system && self.data
self.write_to_fs
self.data = nil
end
end
def add_md5
if self.data && !self.md5
self.md5 = Digest::MD5.hexdigest( self.data )
if !file
raise "No such file #{ self.store_file_id }!"
end
file.content
end
def provider
file = Store::File.where( :id => self.store_file_id ).first
if !file
raise "No such file #{ self.store_file_id }!"
end
file.provider
end
end

82
app/models/store/file.rb Normal file
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@ -0,0 +1,82 @@
# Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
class Store::File < ApplicationModel
include ApplicationLib
after_destroy :destroy_provider
# add new file
def self.add(data)
md5 = Digest::MD5.hexdigest( data )
file = Store::File.where( :md5 => md5 ).first
if file == nil
# load backend based on config
adapter_name = Setting.get('storage_provider') || 'DB'
if !adapter_name
raise "Missing storage_provider setting option"
end
adapter = self.load_adapter( "Store::Provider::#{ adapter_name }" )
adapter.add( data, md5 )
file = Store::File.create(
:provider => adapter_name,
:md5 => md5,
)
end
file
end
# read content
def content
puts "get #{self.id} #{self.provider}"
adapter = self.class.load_adapter("Store::Provider::#{ self.provider }")
adapter.get( self.md5 )
end
# check data and md5, in case fix it
def self.check_md5(fix_it = nil)
success = true
Store::File.all.each {|item|
content = item.content
md5 = Digest::MD5.hexdigest( content )
puts "CHECK: Store::File.find(#{item.id}) "
if md5 != item.md5
success = false
puts "DIFF: md5 diff of Store::File.find(#{item.id}) "
if fix_it
item.update_attribute( :md5, md5 )
end
end
}
success
end
# move file from one to other provider
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.md5 )
# update meta data
item.update_attribute( :provider, target )
# remove from old provider
adapter_source.delete( item.md5 )
puts "NOTICE: Moved file #{item.md5} from #{source} to #{target}"
}
end
private
def destroy_provider
adapter = self.class.load_adapter("Store::Provider::#{ self.provider }")
adapter.delete( md5 )
end
end

View file

@ -0,0 +1,5 @@
# Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
class Store::Object < ApplicationModel
validates :name, :presence => true
end

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@ -0,0 +1,25 @@
# Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
class Store::Provider::DB < ApplicationModel
self.table_name = 'store_provider_dbs'
def self.add(data, md5)
Store::Provider::DB.create(
:data => data,
:md5 => md5,
)
true
end
def self.get(md5)
file = Store::Provider::DB.where( :md5 => md5 ).first
return if !file
file.data
end
def self.delete(md5)
Store::Provider::DB.where( :md5 => md5 ).destroy_all
true
end
end

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@ -0,0 +1,84 @@
# Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
class Store::Provider::File
def self.add(data, md5)
write_to_fs(data, md5)
true
end
def self.get(md5)
read_from_fs(md5)
end
def self.delete(md5)
unlink_from_fs(md5)
end
private
# generate file location
def self.get_locaton(md5)
# generate directory
base = Rails.root.to_s + '/storage/fs/'
parts = md5.scan(/.{1,3}/)
path = parts[ 1 .. 7 ].join('/') + '/'
file = parts[ 8 .. parts.count ].join('')
location = "#{base}/#{path}"
# create directory if not exists
if !File.exist?( location )
FileUtils.mkdir_p( location )
end
location += file
end
# unlink file from fs
def self.unlink_from_fs(md5)
if File.exist?( get_locaton(md5) )
puts "NOTICE: storge remove '#{ get_locaton(md5) }'"
File.delete( get_locaton(md5) )
end
end
# read file from fs
def self.read_from_fs(md5)
puts "read from fs #{ get_locaton(md5) }"
if !File.exist?( get_locaton(md5) )
raise "ERROR: No such file #{ get_locaton(md5) }"
end
data = File.open( get_locaton(md5), 'rb' )
content = data.read
# check md5
local_md5 = Digest::MD5.hexdigest( content )
if local_md5 != md5
raise "ERROR: Corrupt file in fs #{ get_locaton(md5) }, md5 should be #{md5} but is #{local_md5}"
end
content
end
# write file to fs
def self.write_to_fs(data,md5)
# install file
permission = '600'
if !File.exist?( get_locaton(md5) )
puts "NOTICE: storge write '#{ get_locaton(md5) }' (#{permission})"
file = File.new( get_locaton(md5), 'wb' )
file.write( data )
file.close
end
File.chmod( permission.to_i(8), get_locaton(md5) )
# check md5
local_md5 = Digest::MD5.hexdigest( read_from_fs(md5) )
if md5 != local_md5
raise "ERROR: Corrupt file in fs #{ get_locaton(md5) }, md5 should be #{md5} but is #{local_md5}"
end
true
end
end

View file

@ -1,6 +1,7 @@
# Copyright (C) 2012-2014 Zammad Foundation, http://zammad-foundation.org/
class Ticket::Number < ApplicationLib
class Ticket::Number
include ApplicationLib
=begin
@ -48,7 +49,7 @@ returns
if !adapter_name
raise "Missing ticket_number setting option"
end
adapter = self.load_adapter(adapter_name)
adapter = load_adapter(adapter_name)
if !adapter
raise "Can't load ticket_number adapter '#{adapter_name}'"
end

View file

@ -0,0 +1,28 @@
class UpdateStorage2 < ActiveRecord::Migration
def up
create_table :store_provider_dbs do |t|
t.column :data, :binary, :limit => 200.megabytes, :null => true
t.column :md5, :string, :limit => 60, :null => false
t.timestamps
end
add_index :store_provider_dbs, [:md5], :unique => true
add_column :store_files, :provider, :string, :limit => 20, :null => true
add_index :store_files, [:provider]
Store::File.all.each {|file|
if file.data
file.update_attribute( :provider, 'DB' )
Store::Provider::DB.add( file.data, file.md5 )
else
file.update_attribute( :provider, 'File' )
Store::Provider::File.add( file.data, file.md5 )
end
}
remove_column :store_files, :data
end
def down
end
end

View file

@ -1,4 +1,9 @@
class ApplicationLib
module ApplicationLib
def self.included(base)
base.extend(ClassMethods)
end
module ClassMethods
=begin
@ -12,7 +17,7 @@ returns
=end
def self.load_adapter_by_setting(setting)
def load_adapter_by_setting(setting)
adapter = Setting.get( setting )
return if !adapter
@ -32,7 +37,7 @@ returns
=end
def self.load_adapter(adapter)
def load_adapter(adapter)
# load adapter
@ -45,6 +50,13 @@ returns
# end
# will work with active_support
adapter.constantize
adapter = adapter.constantize
if !adapter
raise "Can't load adapter '#{adapter_name}'"
end
adapter
end
end
end

View file

@ -1,6 +1,7 @@
# Copyright (C) 2012-2013 Zammad Foundation, http://zammad-foundation.org/
class Auth < ApplicationLib
class Auth
include ApplicationLib
=begin

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@ -1,6 +1,7 @@
# Copyright (C) 2012-2013 Zammad Foundation, http://zammad-foundation.org/
class GeoIp < ApplicationLib
class GeoIp
include ApplicationLib
=begin

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@ -1,6 +1,7 @@
# Copyright (C) 2012-2013 Zammad Foundation, http://zammad-foundation.org/
class GeoLocation < ApplicationLib
class GeoLocation
include ApplicationLib
=begin

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@ -27,7 +27,9 @@ module Sessions::Backend::Collections
end
push_collection_cache = Sessions::CacheIn.get( cache_key, { :re_expire => true } )
worker.log 'notice', "---user - fetch push_collection data " + cache_key
if !push_collection[key] || !push_collection_cache || push_collection[key] != push_collection_cache || !push_collection[ key ].zip( push_collection_cache ).all? { |x, y| x.attributes == y.attributes }
# if !push_collection[key] || !push_collection_cache || push_collection[key] != push_collection_cache || !push_collection[ key ].zip( push_collection_cache ).all? { |x, y| x.attributes == y.attributes }
if !push_collection[key] || !push_collection_cache || push_collection[key] != push_collection_cache || !push_collection[ key ].zip( push_collection_cache ).all? { |x, y| return false if !x; return false if !y; x.attributes == y.attributes }
worker.log 'notify', 'fetch push_collection changed - ' + cache_key
Sessions::CacheIn.set( cache_key, push_collection[key], { :expires_in => 1.minutes } )
end

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@ -1,6 +1,7 @@
# Copyright (C) 2012-2013 Zammad Foundation, http://zammad-foundation.org/
class Sso < ApplicationLib
class Sso
include ApplicationLib
=begin

View file

@ -54,9 +54,14 @@ class StoreTest < ActiveSupport::TestCase
# filename check
assert_equal( file[:filename], attachments[0].filename )
# provider check
assert_equal( 'DB', attachments[0].provider )
}
Store::File.move_to_fs
success = Store::File.check_md5
assert success, "check_md5 ok"
Store::File.move( 'DB', 'File' )
files.each { |file|
md5 = Digest::MD5.hexdigest( file[:data] )
@ -74,9 +79,15 @@ class StoreTest < ActiveSupport::TestCase
# filename check
assert_equal( file[:filename], attachments[0].filename )
# provider check
assert_equal( 'File', attachments[0].provider )
}
Store::File.move_to_db
success = Store::File.check_md5
assert success, "check_md5 ok"
Store::File.move( 'File', 'DB' )
files.each { |file|
md5 = Digest::MD5.hexdigest( file[:data] )
@ -95,6 +106,9 @@ class StoreTest < ActiveSupport::TestCase
# filename check
assert_equal( file[:filename], attachments[0].filename )
# provider check
assert_equal( 'DB', attachments[0].provider )
# delete attachments
success = Store.remove(
:object => 'Test',