Class: Puppet::Network::Handler::FileServer::Mount

Inherits:
AuthStore show all
Defined in:
lib/puppet/network/handler/fileserver.rb

Overview

A simple class for wrapping mount points. Instances of this class don’t know about the enclosing object; they’re mainly just used for authorization.

Direct Known Subclasses

PluginMount

Constant Summary collapse

@@syncs = 
{}
@@files = 
{}

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from AuthStore

#allow, #allowed?, #deny, #empty?, #globalallow?, #interpolate, #reset_interpolation

Methods included from Util::Logging

#send_log

Constructor Details

#initialize(name, path = nil) ⇒ Mount

Create out object. It must have a name.



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# File 'lib/puppet/network/handler/fileserver.rb', line 467

def initialize(name, path = nil)
  unless name =~ %r{^[-\w]+$}
    raise FileServerError, "Invalid name format '#{name}'"
  end
  @name = name

  if path
    self.path = path
  else
    @path = nil
  end

  @files = {}

  super()
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/puppet/network/handler/fileserver.rb', line 402

def name
  @name
end

Instance Method Details

#clientmap(client) ⇒ Object

Create a map for a specific client.



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# File 'lib/puppet/network/handler/fileserver.rb', line 411

def clientmap(client)
  {
    "h" => client.sub(/\..*$/, ""),
    "H" => client,
    "d" => client.sub(/[^.]+\./, "") # domain name
  }
end

#copy(name, path) ⇒ Object

Return a new mount with the same properties as self, except with a different name and path.



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# File 'lib/puppet/network/handler/fileserver.rb', line 603

def copy(name, path)
  result = self.clone
  result.path = path
  result.instance_variable_set(:@name, name)
  result
end

#expand(path, client = nil) ⇒ Object

Replace % patterns as appropriate.



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# File 'lib/puppet/network/handler/fileserver.rb', line 420

def expand(path, client = nil)
  # This map should probably be moved into a method.
  map = nil

  if client
    map = clientmap(client)
  else
    Puppet.notice "No client; expanding '#{path}' with local host"
    # Else, use the local information
    map = localmap
  end
  path.gsub(/%(.)/) do |v|
    key = $1
    if key == "%"
      "%"
    else
      map[key] || v
    end
  end
end

#expandable? ⇒ Boolean

Do we have any patterns in our path, yo?

Returns:

  • (Boolean) 


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# File 'lib/puppet/network/handler/fileserver.rb', line 442

def expandable?
  if defined?(@expandable)
    @expandable
  else
    false
  end
end

#file_path(relative_path, node = nil) ⇒ Object

Return a fully qualified path, given a short path and possibly a client name.



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# File 'lib/puppet/network/handler/fileserver.rb', line 452

def file_path(relative_path, node = nil)
  full_path = path(node)

  unless full_path
    p self
    raise ArgumentError.new("Mounts without paths are not usable") unless full_path
  end

  # If there's no relative path name, then we're serving the mount itself.
  return full_path unless relative_path and relative_path != "/"

  File.join(full_path, relative_path)
end

#fileobj(path, links, client) ⇒ Object 



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# File 'lib/puppet/network/handler/fileserver.rb', line 484

def fileobj(path, links, client)
  obj = nil
  if obj = @files[file_path(path, client)]
    # This can only happen in local fileserving, but it's an
    # important one.  It'd be nice if we didn't just set
    # the check params every time, but I'm not sure it's worth
    # the effort.
    obj[:audit] = CHECKPARAMS
  else

    obj = Puppet::Type.type(:file).new(

      :name => file_path(path, client),

      :audit => CHECKPARAMS
    )
    @files[file_path(path, client)] = obj
  end

  if links == :manage
    links = :follow
  end

  # This, ah, might be completely redundant
  obj[:links] = links unless obj[:links] == links

  obj
end

#list(relpath, recurse, ignore, client = nil) ⇒ Object

List the contents of the relative path relpath of this mount.

recurse is the number of levels to recurse into the tree, or false to provide no recursion or true if you just want to go for broke.

ignore is an array of filenames to ignore when traversing the list.

The return value of this method is a complex nest of arrays, which describes a directory tree. Each file or directory is represented by an array, where the first element is the path of the file (relative to the root of the mount), and the second element is the type. A directory is represented by an array as well, where the first element is a “directory” array, while the remaining elements are other file or directory arrays. Confusing? Hell yes. As an added bonus, all names must start with a slash, because… well, I’m fairly certain a complete explanation would involve the words “crack pipe” and “bad batch”.



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# File 'lib/puppet/network/handler/fileserver.rb', line 631

def list(relpath, recurse, ignore, client = nil)
  abspath = file_path(relpath, client)
  if FileTest.exists?(abspath)
    if FileTest.directory?(abspath) and recurse
      return reclist(abspath, recurse, ignore)
    else
      return [["/", File.stat(abspath).ftype]]
    end
  end
  nil
end

#localmap ⇒ Object

Cache this manufactured map, since if it’s used it’s likely to get used a lot.



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# File 'lib/puppet/network/handler/fileserver.rb', line 520

def localmap
  unless defined?(@@localmap)
    @@localmap = {
      "h" =>  Facter.value("hostname"),
      "H" => [Facter.value("hostname"),
        Facter.value("domain")].join("."),
      "d" =>  Facter.value("domain")
    }
  end
  @@localmap
end

#path(client = nil) ⇒ Object

Return the path as appropriate, expanding as necessary.



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# File 'lib/puppet/network/handler/fileserver.rb', line 533

def path(client = nil)
  if expandable?
    return expand(@path, client)
  else
    return @path
  end
end

#path=(path) ⇒ Object

Set the path.



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# File 'lib/puppet/network/handler/fileserver.rb', line 542

def path=(path)
  # FIXME: For now, just don't validate paths with replacement
  # patterns in them.
  if path =~ /%./
    # Mark that we're expandable.
    @expandable = true
  else
    raise FileServerError, "#{path} does not exist" unless FileTest.exists?(path)
    raise FileServerError, "#{path} is not a directory" unless FileTest.directory?(path)
    raise FileServerError, "#{path} is not readable" unless FileTest.readable?(path)
    @expandable = false
  end
  @path = path
end

#path_exists?(relpath, client = nil) ⇒ Boolean

Verify that the path given exists within this mount’s subtree.

Returns:

  • (Boolean) 


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# File 'lib/puppet/network/handler/fileserver.rb', line 559

def path_exists?(relpath, client = nil)
  File.exists?(file_path(relpath, client))
end

#properties(obj) ⇒ Object

Return the current values for the object.



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# File 'lib/puppet/network/handler/fileserver.rb', line 564

def properties(obj)
  obj.retrieve.inject({}) { |props, ary| props[ary[0].name] = ary[1]; props }
end

#read_file(relpath, client) ⇒ Object

Read the contents of the file at the relative path given.



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# File 'lib/puppet/network/handler/fileserver.rb', line 514

def read_file(relpath, client)
  File.read(file_path(relpath, client))
end

#reclist(abspath, recurse, ignore) ⇒ Object 



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# File 'lib/puppet/network/handler/fileserver.rb', line 643

def reclist(abspath, recurse, ignore)
  require 'puppet/file_serving'
  require 'puppet/file_serving/fileset'
  if recurse.is_a?(Fixnum)
    args = { :recurse => true, :recurselimit => recurse, :links => :follow }
  else
    args = { :recurse => recurse, :links => :follow }
  end
  args[:ignore] = ignore if ignore
  fs = Puppet::FileServing::Fileset.new(abspath, args)
  ary = fs.files.collect do |file|
    if file == "."
      file = "/"
    else
      file = File.join("/", file )
    end
    stat = fs.stat(File.join(abspath, file))
    next if stat.nil?
    [ file, stat.ftype ]
  end

  ary.compact
end

#subdir(dir = nil, client = nil) ⇒ Object

Retrieve a specific directory relative to a mount point. If they pass in a client, then expand as necessary.



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# File 'lib/puppet/network/handler/fileserver.rb', line 570

def subdir(dir = nil, client = nil)
  basedir = self.path(client)

  dirname = if dir
    File.join(basedir, *dir.split("/"))
  else
    basedir
  end

  dirname
end

#sync(path) ⇒ Object 



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# File 'lib/puppet/network/handler/fileserver.rb', line 582

def sync(path)
  @@syncs[path] ||= Sync.new
  @@syncs[path]
end

#to_s ⇒ Object 



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# File 'lib/puppet/network/handler/fileserver.rb', line 587

def to_s
  "mount[#{@name}]"
end

#valid? ⇒ Boolean

Verify our configuration is valid. This should really check to make sure at least someone will be allowed, but, eh.

Returns:

  • (Boolean) 


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# File 'lib/puppet/network/handler/fileserver.rb', line 593

def valid?
  if name == MODULES
    return @path.nil?
  else
    return ! @path.nil?
  end
end