Class: Imap::Backup::Account

Inherits:
Object
  • Object
show all
Defined in:
lib/imap/backup/account.rb,
lib/imap/backup/account/backup.rb,
lib/imap/backup/account/folder.rb,
lib/imap/backup/account/locker.rb,
lib/imap/backup/account/restore.rb,
lib/imap/backup/account/folder_backup.rb,
lib/imap/backup/account/folder_mapper.rb,
lib/imap/backup/account/backup_folders.rb,
lib/imap/backup/account/client_factory.rb,
lib/imap/backup/account/folder_ensurer.rb,
lib/imap/backup/account/serialized_folders.rb,
lib/imap/backup/account/local_only_folder_deleter.rb

Overview

Contains the attributes relating to an email account.

Defined Under Namespace

Classes: Backup, BackupFolders, ClientFactory, Folder, FolderBackup, FolderEnsurer, FolderMapper, LocalOnlyFolderDeleter, Locker, Restore, SerializedFolders

Constant Summary collapse

DEFAULT_MULTI_FETCH_SIZE =

By default, the backup process fetches one email at a time

1

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ Account

Returns a new instance of Account.



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# File 'lib/imap/backup/account.rb', line 87

def initialize(options)
  check_options!(options)
  @username = options[:username]
  @password = options[:password]
  @local_path = options[:local_path]
  @folders = options[:folders]
  @folder_blacklist = options[:folder_blacklist] || false
  @mirror_mode = options[:mirror_mode] || false
  @server = options[:server]
  @connection_options = nil
  @supplied_connection_options = options[:connection_options]
  @download_strategy = options[:download_strategy]
  @multi_fetch_size_orignal = options[:multi_fetch_size]
  @reset_seen_flags_after_fetch = options[:reset_seen_flags_after_fetch]
  @status = options[:status] || DEFAULT_STATUS
  @client = nil
  @changes = {}
  @marked_for_deletion = false
end

Instance Attribute Details

#download_strategy ⇒ String

The name of the download strategy to adopt during backups



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# File 'lib/imap/backup/account.rb', line 47

def download_strategy
  @download_strategy
end

#folder_blacklist ⇒ Boolean

Indicates whether the configured folders are a whitelist or a blacklist. When true, any folders attribute will be taken as a list of folders to skip when running backups. When false, the folders attribute is used as the list of folders to backup. If no folders are configured, all folders on the server are backed up irrespective of the folder_blacklist setting



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# File 'lib/imap/backup/account.rb', line 37

def folder_blacklist
  @folder_blacklist
end

#folders ⇒ Array<String>, void #folders=(value) ⇒ void

Overloads:

  • #folders ⇒ Array<String>, void

    The list of folders that have been configured for the Account

    See Also:

  • #folders=(value) ⇒ void

    This method returns an undefined value.

    Sets the folders attribute and marks it as modified, storing the original value



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# File 'lib/imap/backup/account.rb', line 29

def folders
  @folders
end

#local_path ⇒ String 



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# File 'lib/imap/backup/account.rb', line 20

def local_path
  @local_path
end

#mirror_mode ⇒ Boolean

Should all emails be backed up progressively, or should emails which are deleted from the server be deleted locally?



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# File 'lib/imap/backup/account.rb', line 41

def mirror_mode
  @mirror_mode
end

#password ⇒ String 



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# File 'lib/imap/backup/account.rb', line 18

def password
  @password
end

#reset_seen_flags_after_fetch ⇒ Boolean

Should ‘Seen’ flags be cached before fetching emails and rewritten to the server afterwards?

Some IMAP providers, notably Apple Mail, set the ‘Seen’ flag on emails when they are fetched. By setting ‘:reset_seen_flags_after_fetch`, a workaround is activated which checks which emails are ’unseen’ before and after the fetch, and removes the ‘Seen’ flag from those which have changed. As this check is susceptible to ‘race conditions’, i.e. when a different client sets the ‘Seen’ flag while imap-backup is fetching, it is best to only use it when required (i.e. for IMAP providers which always mark messages as ‘Seen’ when accessed).



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# File 'lib/imap/backup/account.rb', line 60

def reset_seen_flags_after_fetch
  @reset_seen_flags_after_fetch
end

#server ⇒ String

The address of the IMAP server



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# File 'lib/imap/backup/account.rb', line 44

def server
  @server
end

#status ⇒ String

The status of the account - controls backup and migration behaviour “active” - the account is available for backup and migration, “archived” - the account is available for migration, but not backup, “offline” - the account is not available for backup or migration.



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# File 'lib/imap/backup/account.rb', line 66

def status
  @status
end

#username ⇒ String

The username of the account (usually the same as the email address)



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# File 'lib/imap/backup/account.rb', line 16

def username
  @username
end

Instance Method Details

#active? ⇒ Boolean 



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# File 'lib/imap/backup/account.rb', line 285

def active?
  @status == "active"
end

#archived? ⇒ Boolean 



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# File 'lib/imap/backup/account.rb', line 290

def archived?
  @status == "archived"
end

#available_for_backup? ⇒ Boolean 



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# File 'lib/imap/backup/account.rb', line 300

def available_for_backup?
  active?
end

#available_for_migration? ⇒ Boolean 



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# File 'lib/imap/backup/account.rb', line 305

def available_for_migration?
  active? || archived?
end

#capabilities ⇒ Array<String>

Returns the capabilites of the IMAP server



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# File 'lib/imap/backup/account.rb', line 124

def capabilities
  client.capability
end

#clear_changes ⇒ void

This method returns an undefined value.

Resets the store of changes, indicating that the current state is the saved state



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# File 'lib/imap/backup/account.rb', line 134

def clear_changes
  @changes = {}
end

#client ⇒ Account::Client::Default

Initializes a client for the account’s IMAP server



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# File 'lib/imap/backup/account.rb', line 110

def client
  @client ||= ::ClientFactory.new(account: self).run
end

#connection_options ⇒ Hash, void

Extra options to be passed to the IMAP server when connecting



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# File 'lib/imap/backup/account.rb', line 224

def connection_options
  @connection_options ||=
    case @supplied_connection_options
    when String
      JSON.parse(@supplied_connection_options, symbolize_names: true)
    else
      @supplied_connection_options
    end
end

#connection_options=(value) ⇒ void 



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# File 'lib/imap/backup/account.rb', line 235

def connection_options=(value)
  # Ensure we've loaded the connection_options
  connection_options
  parsed = if value == ""
             nil
           else
             JSON.parse(value, symbolize_names: true)
           end
  update(:connection_options, parsed)
end

#lockfile_path ⇒ String

Returns the path to the lockfile for the account.

Raises:

  • (RuntimeError) —

    if the local_path is not set



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# File 'lib/imap/backup/account.rb', line 193

def lockfile_path
  raise "local_path is not set" if !local_path

  File.join(local_path, "imap-backup.lock")
end

#mark_for_deletion ⇒ void

This method returns an undefined value.

Sets a flag indicating the Account should be excluded from the next save operation



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# File 'lib/imap/backup/account.rb', line 141

def mark_for_deletion
  @marked_for_deletion = true
end

#marked_for_deletion? ⇒ Boolean 



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# File 'lib/imap/backup/account.rb', line 146

def marked_for_deletion?
  @marked_for_deletion
end

#modified? ⇒ Boolean 



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# File 'lib/imap/backup/account.rb', line 128

def modified?
  changes.any?
end

#multi_fetch_size ⇒ Integer

The number of emails to fetch from the IMAP server at a time



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# File 'lib/imap/backup/account.rb', line 249

def multi_fetch_size
  @multi_fetch_size ||= begin
    int = @multi_fetch_size_orignal.to_i
    int.positive? ? int : DEFAULT_MULTI_FETCH_SIZE
  end
end

#multi_fetch_size=(value) ⇒ void

This method returns an undefined value.

Sets the multi_fetch_size attribute and marks it as modified, storing the original value. If the supplied value is not a positive integer, uses DEFAULT_MULTI_FETCH_SIZE



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# File 'lib/imap/backup/account.rb', line 260

def multi_fetch_size=(value)
  parsed = value.to_i
  parsed = DEFAULT_MULTI_FETCH_SIZE if !parsed.positive?
  update(:multi_fetch_size, parsed)
end

#namespaces ⇒ Array<String>

Returns the namespaces configured for the account on the IMAP server



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# File 'lib/imap/backup/account.rb', line 117

def namespaces
  client.namespace
end

#offline? ⇒ Boolean 



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# File 'lib/imap/backup/account.rb', line 295

def offline?
  @status == "offline"
end

#to_h ⇒ Hash 



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# File 'lib/imap/backup/account.rb', line 151

def to_h
  h = {
    username: username,
    password: password,
    status: status
  }
  h[:local_path] = local_path if local_path
  h[:folders] = folders if folders
  h[:folder_blacklist] = true if folder_blacklist
  h[:mirror_mode] = true if mirror_mode
  h[:server] = server if server
  h[:connection_options] = connection_options if connection_options
  h[:multi_fetch_size] = multi_fetch_size
  if reset_seen_flags_after_fetch
    h[:reset_seen_flags_after_fetch] = reset_seen_flags_after_fetch
  end
  h
end