Added remote digest methods

lib/msf/core/post/file.rb

@@ -33,6 +33,15 @@ module File
 		end
 	end
 
+	#
+	# Returns a MD5 checksum of a given remote file
+	#
+
+	def file_remote_digestmd5(file2md5)
+		chksum = Digest::MD5.hexdigest(read_file(file2md5))
+		return chksum
+	end
+
 	#
 	# Returns a SHA1 checksum of a given local file
 	#
@@ -47,6 +56,15 @@ module File
 		end
 	end
 
+	#
+	# Returns a SHA1 checksum of a given remote file
+	#
+
+	def file_remote_digestsha1(file2sha1)
+		chksum = Digest::SHA1.hexdigest(read_file(file2sha1))
+		return chksum
+	end
+
 	#
 	# Returns a SHA256 checksum of a given local file
 	#
@@ -61,6 +79,15 @@ module File
 		end
 	end
 
+	#
+	# Returns a SHA2 checksum of a given remote file
+	#
+
+	def file_remote_digestsha2(file2sha2)
+		chksum = Digest::SHA256.hexdigest(read_file(file2sha2))
+		return chksum
+	end
+
 	#
 	# Platform-agnostic file read.  Returns contents of remote file +file_name+
 	# as a String.