Class: MP4::Source::Local

Inherits:
Object
  • Object
show all
Includes:
Base
Defined in:
lib/mp4/source/local.rb

Constant Summary

Constants included from Base

Base::REQUIRED_METHODS

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Base

#fetch, included

Constructor Details

#initialize(path_to_file) ⇒ Local

Returns a new instance of Local.



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# File 'lib/mp4/source/local.rb', line 29

def initialize(path_to_file)
  @path_to_file = path_to_file.to_s
end

Instance Attribute Details

#path_to_file ⇒ Object (readonly)

Returns the value of attribute path_to_file.



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# File 'lib/mp4/source/local.rb', line 5

def path_to_file
  @path_to_file
end

Class Method Details

.from_uri(uri, base_dir: nil) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/mp4/source/local.rb', line 7

def self.from_uri(uri, base_dir: nil)
  raise ArgumentError, "expected local: URI, got #{uri.inspect}" unless uri.start_with?('local:')

  path = uri.sub(/\Alocal:/, '')
  resolved = resolve_path(path, base_dir)
  new(resolved.to_s)
end

.resolve_path(path, base_dir) ⇒ Object 



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# File 'lib/mp4/source/local.rb', line 15

def self.resolve_path(path, base_dir)
  candidate = Pathname.new(path)
  return candidate if base_dir.nil?

  root = Pathname.new(base_dir).expand_path
  absolute = (candidate.absolute? ? candidate : root.join(candidate)).expand_path

  unless absolute.to_s.start_with?(root.to_s + File::SEPARATOR) || absolute.to_s == root.to_s
    raise ArgumentError, "path escapes base_dir: #{path.inspect}"
  end

  absolute
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/mp4/source/local.rb', line 68

def close
  @file&.close
  @file = nil
end

#eof? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mp4/source/local.rb', line 54

def eof?
  file.eof?
end

#mtime ⇒ Object 



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# File 'lib/mp4/source/local.rb', line 62

def mtime
  File.mtime(@path_to_file)
rescue Errno::ENOENT
  nil
end

#open! ⇒ Object 



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# File 'lib/mp4/source/local.rb', line 49

def open!
  file
  self
end

#pos ⇒ Object 



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# File 'lib/mp4/source/local.rb', line 58

def pos
  file.pos
end

#read(n) ⇒ Object 



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# File 'lib/mp4/source/local.rb', line 37

def read(n)
  file.read(n)
end

#reset_seek ⇒ Object 



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# File 'lib/mp4/source/local.rb', line 45

def reset_seek
  file.seek(0)
end

#set_seek(n) ⇒ Object 



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# File 'lib/mp4/source/local.rb', line 41

def set_seek(n)
  file.seek(n)
end

#uri ⇒ Object 



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# File 'lib/mp4/source/local.rb', line 33

def uri
  "local:#{@path_to_file}"
end