Class: Rex::Post::FileStat

Inherits:
Object
  • Object
show all
Defined in:
lib/rex/post/file_stat.rb

Overview

This class emulates the ruby FileStat class against a remote entity in a generic fashion. Refer to the ruby documentation for expected behavior.

Constant Summary collapse

@@ftypes =

Basic file types.

[
	'fifo', 'characterSpecial', 'directory',
	'blockSpecial', 'file', 'link', 'socket'
]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(buf = '') ⇒ FileStat

Returns a new instance of FileStat.



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# File 'lib/rex/post/file_stat.rb', line 30

def initialize(buf='')
	self.stathash = {}
	update(buf) if (buf and not buf.empty?)
end

Instance Attribute Details

#stathash ⇒ Object

Returns the value of attribute stathash.



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# File 'lib/rex/post/file_stat.rb', line 28

def stathash
  @stathash
end

Instance Method Details

#atime ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 65

def atime
	Time.at(self.stathash['st_atime'])
end

#blksize ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 59

def blksize
	self.stathash['st_blksize']
end

#blockdev? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 104

def blockdev?
	filetype?(060000)
end

#blocks ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 62

def blocks
	self.stathash['st_blocks']
end

#chardev? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 107

def chardev?
	filetype?(020000)
end

#ctime ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 71

def ctime
	Time.at(self.stathash['st_ctime'])
end

#dev ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 35

def dev
	self.stathash['st_dev']
end

#directory? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 110

def directory?
	filetype?(040000)
end

#executable? ⇒ Boolean

Returns:

  • (Boolean)

Raises:



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# File 'lib/rex/post/file_stat.rb', line 163

def executable?
	raise NotImplementedError
end

#executable_real? ⇒ Boolean

Returns:

  • (Boolean)

Raises:



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# File 'lib/rex/post/file_stat.rb', line 166

def executable_real?
	raise NotImplementedError
end

#file? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 113

def file?
	filetype?(0100000)
end

#filetype?(mask) ⇒ Boolean

this is my own, just a helper…

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 99

def filetype?(mask)
	return true if mode & 0170000 == mask
	return false
end

#ftype ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 126

def ftype
	return @@ftypes[(mode & 0170000) >> 13].dup
end

#gid ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 50

def gid
	self.stathash['st_gid']
end

#grpowned? ⇒ Boolean

Returns:

  • (Boolean)

Raises:



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# File 'lib/rex/post/file_stat.rb', line 169

def grpowned?
	raise NotImplementedError
end

#ino ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 38

def ino
	self.stathash['st_ino']
end

#mode ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 41

def mode
	self.stathash['st_mode']
end

#mtime ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 68

def mtime
	Time.at(self.stathash['st_mtime'])
end

#nlink ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 44

def nlink
	self.stathash['st_nlink']
end

#owned? ⇒ Boolean

Returns:

  • (Boolean)

Raises:



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# File 'lib/rex/post/file_stat.rb', line 172

def owned?
	raise NotImplementedError
end

#perm?(mask) ⇒ Boolean

S_ISUID 0004000 set UID bit S_ISGID 0002000 set GID bit (see below) S_ISVTX 0001000 sticky bit (see below) S_IRWXU 00700 mask for file owner permissions S_IRUSR 00400 owner has read permission S_IWUSR 00200 owner has write permission S_IXUSR 00100 owner has execute permission S_IRWXG 00070 mask for group permissions S_IRGRP 00040 group has read permission S_IWGRP 00020 group has write permission S_IXGRP 00010 group has execute permission S_IRWXO 00007 mask for permissions for others (not in group) S_IROTH 00004 others have read permission S_IWOTH 00002 others have write permisson S_IXOTH 00001 others have execute permission

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 148

def perm?(mask)
	return true if mode & mask == mask
	return false
end

#pipe? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 116

def pipe?
	filetype?(010000) # ??? fifo?
end

#pretty ⇒ Object

Return pretty information about a file.



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# File 'lib/rex/post/file_stat.rb', line 209

def pretty
	"  Size: #{size}   Blocks: #{blocks}   IO Block: #{blksize}   Type: #{rdev}\n"\
	"Device: #{dev}  Inode: #{ino}  Links: #{nlink}\n"\
	"  Mode: #{prettymode}\n"\
	"   Uid: #{uid}  Gid: #{gid}\n"\
	"Access: #{atime}\n"\
	"Modify: #{mtime}\n"\
	"Change: #{ctime}\n"
end

#prettymode ⇒ Object

Return pretty information about a file’s permissions.



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# File 'lib/rex/post/file_stat.rb', line 191

def prettymode
	m  = mode
	om = '%04o' % m
	perms = ''

	3.times {
		perms = ((m & 01) == 01 ? 'x' : '-') + perms
		perms = ((m & 02) == 02 ? 'w' : '-') + perms
		perms = ((m & 04) == 04 ? 'r' : '-') + perms
		m >>= 3
	}

	return "#{om}/#{perms}"
end

#rdev ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 53

def rdev
	self.stathash['st_rdev']
end

#readable? ⇒ Boolean

Returns:

  • (Boolean)

Raises:



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# File 'lib/rex/post/file_stat.rb', line 175

def readable?
	raise NotImplementedError
end

#readable_real? ⇒ Boolean

Returns:

  • (Boolean)

Raises:



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# File 'lib/rex/post/file_stat.rb', line 178

def readable_real?
	raise NotImplementedError
end

#setgid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 153

def setgid?
	perm?(02000)
end

#setuid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 156

def setuid?
	perm?(04000)
end

#size ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 56

def size
	self.stathash['st_size']
end

#socket? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 119

def socket?
	filetype(0140000)
end

#sticky? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 159

def sticky?
	perm?(01000)
end

#symlink? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rex/post/file_stat.rb', line 122

def symlink?
	filetype(0120000)
end

#uid ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 47

def uid
	self.stathash['st_uid']
end

#update(buf) ⇒ Object 



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# File 'lib/rex/post/file_stat.rb', line 75

def update(buf)

	# XXX: This needs to understand more than just 'stat' structures
	# Windows can also return _stat32, _stat32i64, _stat64i32, and _stat64 structures
	
	skeys = %W{st_dev st_ino st_mode st_wtf st_nlink st_uid st_gid st_rdev st_size st_ctime st_atime st_mtime}
	svals = buf.unpack("VvvvvvvVVVVV")
	skeys.each_index do |i|
		self.stathash[ skeys[i] ] = svals[i]
	end
end

#writeable? ⇒ Boolean

Returns:

  • (Boolean)

Raises:



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# File 'lib/rex/post/file_stat.rb', line 181

def writeable?
	raise NotImplementedError
end

#writeable_real? ⇒ Boolean

Returns:

  • (Boolean)

Raises:



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# File 'lib/rex/post/file_stat.rb', line 184

def writeable_real?
	raise NotImplementedError
end