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https://github.com/ail-project/ail-framework.git
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234 lines
8.5 KiB
Python
Executable file
234 lines
8.5 KiB
Python
Executable file
#!/usr/bin/env python3
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# -*-coding:UTF-8 -*
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"""
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The Credential Module
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=====================
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This module is consuming the Redis-list created by the Categ module.
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It apply credential regexes on paste content and warn if above a threshold.
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It also split the username and store it into redis for searching purposes.
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Redis organization:
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uniqNumForUsername: unique number attached to unique username
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uniqNumForPath: unique number attached to unique path
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-> uniqNum are used to avoid string duplication
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AllCredentials: hashed set where keys are username and value are their uniq number
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AllCredentialsRev: the opposite of AllCredentials, uniqNum -> username
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AllPath: hashed set where keys are path and value are their uniq number
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AllPathRev: the opposite of AllPath, uniqNum -> path
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CredToPathMapping_uniqNumForUsername -> (set) -> uniqNumForPath
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"""
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import time
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import sys
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from packages import Paste
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from pubsublogger import publisher
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from Helper import Process
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import datetime
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import re
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import redis
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from pyfaup.faup import Faup
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import signal
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class TimeoutException(Exception):
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pass
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def timeout_handler(signum, frame):
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raise TimeoutException
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signal.signal(signal.SIGALRM, timeout_handler)
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max_execution_time = 30
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#split username with spec. char or with upper case, distinguish start with upper
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REGEX_CRED = "[a-z]+|[A-Z]{3,}|[A-Z]{1,2}[a-z]+|[0-9]+"
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REDIS_KEY_NUM_USERNAME = 'uniqNumForUsername'
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REDIS_KEY_NUM_PATH = 'uniqNumForUsername'
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REDIS_KEY_ALL_CRED_SET = 'AllCredentials'
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REDIS_KEY_ALL_CRED_SET_REV = 'AllCredentialsRev'
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REDIS_KEY_ALL_PATH_SET = 'AllPath'
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REDIS_KEY_ALL_PATH_SET_REV = 'AllPathRev'
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REDIS_KEY_MAP_CRED_TO_PATH = 'CredToPathMapping'
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if __name__ == "__main__":
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publisher.port = 6380
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publisher.channel = "Script"
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config_section = "Credential"
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p = Process(config_section)
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publisher.info("Find credentials")
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minimumLengthThreshold = p.config.getint("Credential", "minimumLengthThreshold")
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faup = Faup()
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server_cred = redis.StrictRedis(
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host=p.config.get("ARDB_TermCred", "host"),
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port=p.config.get("ARDB_TermCred", "port"),
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db=p.config.get("ARDB_TermCred", "db"),
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decode_responses=True)
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server_statistics = redis.StrictRedis(
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host=p.config.get("ARDB_Statistics", "host"),
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port=p.config.getint("ARDB_Statistics", "port"),
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db=p.config.getint("ARDB_Statistics", "db"),
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decode_responses=True)
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criticalNumberToAlert = p.config.getint("Credential", "criticalNumberToAlert")
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minTopPassList = p.config.getint("Credential", "minTopPassList")
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regex_web = "((?:https?:\/\/)[-_0-9a-zA-Z]+\.[0-9a-zA-Z]+)"
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#regex_cred = "[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}:[a-zA-Z0-9\_\-]+"
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regex_cred = "[a-zA-Z0-9\\._-]+@[a-zA-Z0-9\\.-]+\.[a-zA-Z]{2,6}[\\rn :\_\-]{1,10}[a-zA-Z0-9\_\-]+"
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regex_site_for_stats = "@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}:"
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while True:
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message = p.get_from_set()
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if message is None:
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publisher.debug("Script Credential is Idling 10s")
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#print('sleeping 10s')
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time.sleep(10)
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continue
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filepath, count = message.split(' ')
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paste = Paste.Paste(filepath)
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content = paste.get_p_content()
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item_id = filepath
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# max execution time on regex
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signal.alarm(max_execution_time)
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try:
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creds = set(re.findall(regex_cred, content))
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except TimeoutException:
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p.incr_module_timeout_statistic() # add encoder type
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err_mess = "Credential: processing timeout: {}".format(item_id)
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print(err_mess)
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publisher.info(err_mess)
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continue
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else:
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signal.alarm(0)
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if len(creds) == 0:
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continue
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signal.alarm(max_execution_time)
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try:
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sites = re.findall(regex_web, content) #Use to count occurences
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except TimeoutException:
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p.incr_module_timeout_statistic()
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err_mess = "Credential: site, processing timeout: {}".format(item_id)
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print(err_mess)
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publisher.info(err_mess)
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sites = []
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else:
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signal.alarm(0)
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sites_set = set(sites)
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message = 'Checked {} credentials found.'.format(len(creds))
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if sites_set:
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message += ' Related websites: {}'.format( (', '.join(sites_set)) )
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to_print = 'Credential;{};{};{};{};{}'.format(paste.p_source, paste.p_date, paste.p_name, message, paste.p_rel_path)
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print('\n '.join(creds))
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#num of creds above tresh, publish an alert
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if len(creds) > criticalNumberToAlert:
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print("========> Found more than 10 credentials in this file : {}".format( filepath ))
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publisher.warning(to_print)
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#Send to duplicate
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p.populate_set_out(filepath, 'Duplicate')
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msg = 'infoleak:automatic-detection="credential";{}'.format(filepath)
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p.populate_set_out(msg, 'Tags')
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#Put in form, count occurences, then send to moduleStats
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signal.alarm(max_execution_time)
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try:
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site_occurence = re.findall(regex_site_for_stats, content)
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except TimeoutException:
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p.incr_module_timeout_statistic()
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err_mess = "Credential: site occurence, processing timeout: {}".format(item_id)
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print(err_mess)
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publisher.info(err_mess)
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site_occurence = []
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else:
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signal.alarm(0)
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creds_sites = {}
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for site in site_occurence:
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site_domain = site[1:-1]
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if site_domain in creds_sites.keys():
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creds_sites[site_domain] += 1
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else:
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creds_sites[site_domain] = 1
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for url in sites:
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faup.decode(url)
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domain = faup.get()['domain']
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## TODO: # FIXME: remove me
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try:
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domain = domain.decode()
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except:
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pass
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if domain in creds_sites.keys():
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creds_sites[domain] += 1
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else:
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creds_sites[domain] = 1
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for site, num in creds_sites.items(): # Send for each different site to moduleStats
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mssg = 'credential;{};{};{}'.format(num, site, paste.p_date)
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print(mssg)
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p.populate_set_out(mssg, 'ModuleStats')
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if sites_set:
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print("=======> Probably on : {}".format(', '.join(sites_set)))
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date = datetime.datetime.now().strftime("%Y%m")
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for cred in creds:
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maildomains = re.findall("@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,20}", cred.lower())[0]
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faup.decode(maildomains)
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tld = faup.get()['tld']
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## TODO: # FIXME: remove me
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try:
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tld = tld.decode()
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except:
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pass
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server_statistics.hincrby('credential_by_tld:'+date, tld, 1)
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else:
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publisher.info(to_print)
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print('found {} credentials'.format(len(creds)))
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#for searching credential in termFreq
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for cred in creds:
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cred = cred.split('@')[0] #Split to ignore mail address
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#unique number attached to unique path
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uniq_num_path = server_cred.incr(REDIS_KEY_NUM_PATH)
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server_cred.hmset(REDIS_KEY_ALL_PATH_SET, {filepath: uniq_num_path})
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server_cred.hmset(REDIS_KEY_ALL_PATH_SET_REV, {uniq_num_path: filepath})
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#unique number attached to unique username
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uniq_num_cred = server_cred.hget(REDIS_KEY_ALL_CRED_SET, cred)
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if uniq_num_cred is None: #cred do not exist, create new entries
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uniq_num_cred = server_cred.incr(REDIS_KEY_NUM_USERNAME)
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server_cred.hmset(REDIS_KEY_ALL_CRED_SET, {cred: uniq_num_cred})
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server_cred.hmset(REDIS_KEY_ALL_CRED_SET_REV, {uniq_num_cred: cred})
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#Add the mapping between the credential and the path
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server_cred.sadd(REDIS_KEY_MAP_CRED_TO_PATH+'_'+str(uniq_num_cred), uniq_num_path)
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#Split credentials on capital letters, numbers, dots and so on
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#Add the split to redis, each split point towards its initial credential unique number
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splitedCred = re.findall(REGEX_CRED, cred)
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for partCred in splitedCred:
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if len(partCred) > minimumLengthThreshold:
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server_cred.sadd(partCred, uniq_num_cred)
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