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local rtsp = require "rtsp"
local shortport = require "shortport"
local stdnse = require "stdnse"
description = [[
Determines which methods are supported by the RTSP (real time streaming protocol) server.
]]
---
-- @usage
-- nmap -p 554 --script rtsp-methods <ip>
--
-- @output
-- PORT STATE SERVICE
-- 554/tcp open rtsp
-- | rtsp-methods:
-- |_ DESCRIBE, SETUP, PLAY, TEARDOWN, OPTIONS
--
-- @xmloutput
-- <elem>DESCRIBE</elem>
-- <elem>SETUP</elem>
-- <elem>PLAY</elem>
-- <elem>TEARDOWN</elem>
-- <elem>OPTIONS</elem>
--
-- @args rtsp-methods.path the path to query, defaults to "*" which queries
-- the server itself, rather than a specific url.
--
--
-- Version 0.1
-- Created 23/10/2011 - v0.1 - created by Patrik Karlsson <patrik@cqure.net>
--
author = "Patrik Karlsson"
license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
categories = {"default", "safe"}
portrule = shortport.port_or_service(554, "rtsp", "tcp", "open")
action = function(host, port)
local path = stdnse.get_script_args('rtsp-methods.path') or '*'
local helper = rtsp.Helper:new(host, port)
local status = helper:connect()
if ( not(status) ) then
stdnse.debug2("ERROR: Failed to connect to RTSP server")
return
end
local response
status, response = helper:options(path)
helper:close()
if ( status ) then
local opts = response.headers['Public']
return stdnse.strsplit(",%s*", opts), opts
end
end
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