path: root/lib/orm/management/commands/lsupdates.py

#
# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
#
# Security Response Tool Implementation
#
# Copyright (C) 2013-2015 Intel Corp.
# Copyright (C) 2017-2018 Wind River Systems
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

from django.core.management.base import BaseCommand
from django.core.exceptions import ObjectDoesNotExist

from orm.models import SrtSetting, DataSource, Vulnerability, Investigation
from orm.models import Cve, CveSet, CveToCveSet, VulnerabilityProduct
from orm.models import CveReference, CweTable, Product, CveToCwe
from orm.models import CpeToCve, CpeTable
from orm.models import CpeFilter, Product, Jira, InvestigationToJira, CveToVulnerablility
from orm.models import Keywords

import os
import sys
import re

import json
import xml.etree.ElementTree as ET
import csv
import logging
import threading
import time
logger = logging.getLogger("srt")
import urllib


def _log(msg):
    f1=open('/tmp/srt.log', 'a')
    f1.write("|" + msg + "|\n" )
    f1.close()


# === Debugging limited database loading support ===
debug_cve_list = [] # empty list for any
#debug_cve_list = [
#    'CVE-2017-0001','CVE-2017-1000135','CVE-2017-10604','CVE-2017-0290',
#    'CVE-2017-8361','CVE-2017-8362','CVE-2017-8363','CVE-2017-8365','CVE-2017-8392','CVE-2017-8779',
#    ]
#debug_cve_count = 0   # 0 for all
#debug_cve_count = 10   # 0 for any
#debug_include_id_prefix = 'CVE-2018'   # always include CVEs with this prefix
#debug_include_id_prefix = 'XXX'   # always include CVEs with this prefix
#status_sustaining_limit = 0 # 0 for all
#status_sustaining_limit = 10
#debug_jira_limit = 0 # 0 for all
#debug_jira_limit = 10
#cpe_limit = 0
#cpe_limit = 10

class Spinner(threading.Thread):
    """ A simple progress spinner to indicate download/parsing is happening"""
    def __init__(self, *args, **kwargs):
        super(Spinner, self).__init__(*args, **kwargs)
        self.setDaemon(True)
        self.signal = True

    def run(self):
        os.system('setterm -cursor off')
        while self.signal:
            for char in ["/", "-", "\\", "|"]:
                sys.stdout.write("\r" + char)
                sys.stdout.flush()
                time.sleep(0.25)
        os.system('setterm -cursor on')

    def stop(self):
        self.signal = False


class Command(BaseCommand):
    args = ""
    help = "Updates locally cached information from the registered data sources"

    # === Debugging limited database loading support ===
    debug_cve_list = [] # empty list for any
    debug_cve_count = 0   # 0 for all
    debug_include_id_prefix = 'XXX'   # always include CVEs with this prefix
    status_sustaining_limit = 0 # 0 for all
    debug_jira_limit = 0 # 0 for all
    cpe_limit = 0

    def mini_progress(self, what, i, total):
        i = i + 1
        pec = (float(i)/float(total))*100

        sys.stdout.write("\rUpdating %s %d%%" %
                         (what,
                          pec))
        sys.stdout.flush()
        if int(pec) is 100:
            sys.stdout.write("\n")
            sys.stdout.flush()


    def nist_scan_configuration_or(self, cve, cpe_or_node, name, and_enum):
        cpe_list = '<or>|'
        for cpe in cpe_or_node['cpe']:
            cpe23Uri = cpe['cpe23Uri']
            if 'cpeMatchString' in cpe:
                cpeMatchString = cpe['cpeMatchString']
            else:
                cpeMatchString = ''
            if 'versionEndIncluding' in cpe:
                versionEndIncluding = cpe['versionEndIncluding']
            else:
                versionEndIncluding = ''
            cpe_list += '%s,%s,%s,%s|' % (cpe['vulnerable'],cpe23Uri,cpeMatchString,versionEndIncluding)
        cpe_list += '</or>|'
        return cpe_list

    def nist_jason(self, dct):
        CVE_Items = dct['CVE_Items']
        total = len(CVE_Items)
        for i, CVE_Item  in enumerate(CVE_Items):
            cve = CVE_Item['cve']
            references = cve['references']['reference_data']
            CVE_data_meta  = cve['CVE_data_meta']['ID']

            # DEBUGGING SUPPORT !!! TODO
            scan = True
            status = Cve.NOT_VULNERABLE
            if (Command.debug_cve_count or len(debug_cve_list)) and not CVE_data_meta.startswith(Command.debug_include_id_prefix):
                scan = False
                if Command.debug_cve_count:
                    if i < Command.debug_cve_count:
                        scan = True
                if len(debug_cve_list):
                    for debug_cve in debug_cve_list:
                        if cve['CVE_data_meta']['ID'].startswith(debug_cve):
                            scan = True
                            status = Cve.INVESTIGATE
            if not scan:
                continue

            if False:
                print("  publishedDate: %s" % CVE_Item['publishedDate'])
                print("  lastModifiedDate: %s" % CVE_Item['lastModifiedDate'])

                print("    publishedDate: %s" % re.sub('T.*','',CVE_Item['publishedDate']))
                print("    lastModifiedDate: %s" % re.sub('T.*','',CVE_Item['lastModifiedDate']))

                print("  data_type: %s" % cve['data_type'])
                print("  data_format: %s" % cve['data_format'])
                print("  CVE_data_meta: %s" % cve['CVE_data_meta']['ID'])
                print("  problemtype: %s" % cve['problemtype']['problemtype_data'][0]['description'][0]['value'])
                print("  description: '%s'" % cve['description']['description_data'][0]['value'])
                references = cve['references']['reference_data']
                print("  References = %d" % len(references))
                for ref in references:
                    print("    reference: %s" % ref['url'])
                if CVE_Item['impact'] and CVE_Item['impact']['baseMetricV3']:
                    baseMetricV3 = CVE_Item['impact']['baseMetricV3']
                    print("  cvssV3 : %s,%s" % (baseMetricV3['exploitabilityScore'],baseMetricV3['impactScore']))
                    print("    vectorString = %s" % baseMetricV3['cvssV3']['vectorString'])
                    print("    attackVector = %s" % baseMetricV3['cvssV3']['attackVector'])
                    print("    attackComplexity = %s" % baseMetricV3['cvssV3']['attackComplexity'])
                    print("    privilegesRequired = %s" % baseMetricV3['cvssV3']['privilegesRequired'])
                    print("    userInteraction = %s" % baseMetricV3['cvssV3']['userInteraction'])
                    print("    scope = %s" % baseMetricV3['cvssV3']['scope'])
                    print("    confidentialityImpact = %s" % baseMetricV3['cvssV3']['confidentialityImpact'])
                    print("    integrityImpact = %s" % baseMetricV3['cvssV3']['integrityImpact'])
                    print("    availabilityImpact = %s" % baseMetricV3['cvssV3']['availabilityImpact'])
                    print("    baseScore = %s" % baseMetricV3['cvssV3']['baseScore'])
                    print("    baseSeverity = %s" % baseMetricV3['cvssV3']['baseSeverity'])
                if CVE_Item['impact'] and CVE_Item['impact']['baseMetricV2']:
                    baseMetricV2 = CVE_Item['impact']['baseMetricV2']
                    print("  cvssV2 : %s,%s" % (baseMetricV2['exploitabilityScore'],baseMetricV2['exploitabilityScore']))
                    print("    vectorString = %s" % baseMetricV2['cvssV2']['vectorString'])
                    print("    accessVector = %s" % baseMetricV2['cvssV2']['accessVector'])
                    print("    accessComplexity = %s" % baseMetricV2['cvssV2']['accessComplexity'])
                    print("    authentication = %s" % baseMetricV2['cvssV2']['authentication'])
                    print("    confidentialityImpact = %s" % baseMetricV2['cvssV2']['confidentialityImpact'])
                    print("    integrityImpact = %s" % baseMetricV2['cvssV2']['integrityImpact'])
                    print("    availabilityImpact = %s" % baseMetricV2['cvssV2']['availabilityImpact'])
                    print("    baseScore = %s" % baseMetricV2['cvssV2']['baseScore'])
                    print("    severity = %s" % baseMetricV2['severity'])

            try:
                CVE_data_meta  = cve['CVE_data_meta']['ID']
                v, created = Cve.objects.get_or_create(name=CVE_data_meta)

                v.name = CVE_data_meta
                v.source = 'NIST'
                status = Cve.NOT_VULNERABLE

                # Debugging support
#                if v.name.startswith("CVE-2018"):
#                    status = Cve.NEW
#                v.status = status
                v.tags = ''
                v.tags_private = ''

                v.cve_data_type = cve['data_type']
                v.cve_data_format = cve['data_format']
                v.cve_data_version = cve['data_version']

                v.description = cve['description']['description_data'][0]['value']
                v.publishedDate = re.sub('T.*','',CVE_Item['publishedDate'])
                v.lastModifiedDate = re.sub('T.*','',CVE_Item['lastModifiedDate'])

                v.public = True
                v.publish = Cve.PUBLISH_PUBLISHED
                v.publish_date = v.publishedDate

                #v.problemtype = cve['problemtype']['problemtype_data'][0]['description'][0]['value']
                problem_list = cve['problemtype']['problemtype_data']
                CveToCwe.objects.filter(cve=v).delete()
                for problem_Item in problem_list:
                    description_list = problem_Item['description']
                    for description_Item in description_list:
                        value = description_Item['value']
                        cwe, created = CweTable.objects.get_or_create(name=value)
                        if created:
                            print("WARNING Missing CWE = '%s'"% value)
                            cwe.save()
                        cve2cwe, created = CveToCwe.objects.get_or_create(cve=v,cwe=cwe)
                        if created:
                            cve2cwe.save()

#                if CVE_Item['impact'] and CVE_Item['impact']['baseMetricV3']:
                if ('impact' in CVE_Item) and ('baseMetricV3' in CVE_Item['impact']):
                    baseMetricV3 = CVE_Item['impact']['baseMetricV3']
                    v.cvssV3_baseScore = baseMetricV3['cvssV3']['baseScore']
                    v.cvssV3_baseSeverity = baseMetricV3['cvssV3']['baseSeverity']
                    v.cvssV3_vectorString = baseMetricV3['cvssV3']['vectorString']
                    v.cvssV3_exploitabilityScore = baseMetricV3['exploitabilityScore']
                    v.cvssV3_impactScore = baseMetricV3['impactScore']
                    v.cvssV3_attackVector = baseMetricV3['cvssV3']['attackVector']
                    v.cvssV3_attackComplexity = baseMetricV3['cvssV3']['attackComplexity']
                    v.cvssV3_privilegesRequired = baseMetricV3['cvssV3']['privilegesRequired']
                    v.cvssV3_userInteraction = baseMetricV3['cvssV3']['userInteraction']
                    v.cvssV3_scope = baseMetricV3['cvssV3']['scope']
                    v.cvssV3_confidentialityImpact = baseMetricV3['cvssV3']['confidentialityImpact']
                    v.cvssV3_integrityImpact = baseMetricV3['cvssV3']['integrityImpact']
                    v.cvssV3_availabilityImpact = baseMetricV3['cvssV3']['availabilityImpact']
                if ('impact' in CVE_Item) and ('baseMetricV2' in CVE_Item['impact']):
                    baseMetricV2 = CVE_Item['impact']['baseMetricV2']
                    v.cvssV2_baseScore = baseMetricV2['cvssV2']['baseScore']
                    v.cvssV2_severity = baseMetricV2['severity']
                    v.cvssV2_vectorString = baseMetricV2['cvssV2']['vectorString']
                    v.cvssV2_exploitabilityScore = baseMetricV2['exploitabilityScore']
                    v.cvssV2_impactScore = baseMetricV2['exploitabilityScore']
                    v.cvssV2_accessVector = baseMetricV2['cvssV2']['accessVector']
                    v.cvssV2_accessComplexity = baseMetricV2['cvssV2']['accessComplexity']
                    v.cvssV2_authentication = baseMetricV2['cvssV2']['authentication']
                    v.cvssV2_confidentialityImpact = baseMetricV2['cvssV2']['confidentialityImpact']
                    v.cvssV2_integrityImpact = baseMetricV2['cvssV2']['integrityImpact']

##                v.save()

                CveReference.objects.filter(cve=v).delete()
                for ref in references:
                    r, created = CveReference.objects.get_or_create(cve=v,
                                                         hyperlink=ref['url'])
                    r.resource = ''
                    r.type = ''
                    r.source = ''
                    r.name = ''
                    r.save()
#                        print("    reference: %s,%s" % (ref['url'],created))


                configurations = CVE_Item['configurations']
                v.cpe_list = ''
                is_first_and = True
                for i, config in enumerate(configurations['nodes']):
                    v.cpe_list += '<config>|'
                    v.cpe_list += '<and>|'
                    if "AND" == config['operator']:
                        # create AND record
                        if not is_first_and:
                            v.cpe_list += '</and>|'
                            v.cpe_list += '<and>|'
                        for j, cpe_or_node in enumerate(config['children']):
                            if "OR" == cpe_or_node['operator']:
                                v.cpe_list += self.nist_scan_configuration_or(v,cpe_or_node, CVE_data_meta, j)
                            else:
                                print("ERROR CONFIGURE:OR_OP?:%s" % cpe_or_node['operator'])
                    elif "OR" == config['operator']:
                        v.cpe_list += self.nist_scan_configuration_or(v,config, CVE_data_meta, 0)
                    else:
                        print("ERROR CONFIGURE:OP?:%s" % config_rec['operator'])
                    v.cpe_list += '</and>|'
                    v.cpe_list += '</config>|'

#				# create a parent CveSet if needed
#                cve_set, created = CveSet.objects.get_or_create(name=v.name)
#                if created:
#                    cve_set.name = v.name
#                    cve_set.description = v.description
#                    cve_set.cvssV3_baseScore = v.cvssV3_baseScore
#                    cve_set.cvssV3_baseSeverity = v.cvssV3_baseSeverity
#                    cve_set.publishedDate = v.publishedDate
#                    cve_set.lastModifiedDate = v.lastModifiedDate
#                    cve_set.save()
#
#                # connect the Cve with the CveSet				
#                cve2cveset, created = CveToCveSet.objects.get_or_create(cve=v, cveset=cve_set)
#                cve2cveset.save()

                # save the final CVE content
                v.recommend = v.recommendation()
                v.save()
				
            except Exception as e:
                logger.warning("Failed saving CVE %s (%s)", (cve['CVE_data_meta']['ID'],e))
                return

            self.mini_progress("CVE's", i, total)


    def nist_cwe(self, content):
        # <td nowrap><span id="cweIdEntry-CWE-123">CWE-123</span></td>
        # <td nowrap><a href="http://cwe.mitre.org/data/definitions/123.html" target="_blank"> Write-what-where Condition</a></td>
        # <td>Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow.</td>

        state = 0
        for line in content.split('\n'):
            if (0 == state) and (0 < line.find('cweIdEntry')):
                # <td nowrap><span id="cweIdEntry-CWE-613">CWE-613</span></td>
                m = re.search('cweIdEntry.*>(.+?)<', line)
                if m:
                    name = m.group(1)
                else:
                    print("ERROR ID:%s" % line)
                    continue
                state = 1
            elif (1 == state) and (0 < line.find('href')):
                # <td nowrap><a href="http://cwe.mitre.org/data/definitions/613.html" target="_blank"> Insufficient Session Expiration</a></td>
                m = re.search('href="(.+?)"', line)
                if m:
                    href = m.group(1)
                else:
                    print("ERROR HREF:%s" % line)
                    continue
                m = re.search('href.*>(.+?)<', line)
                if m:
                    summary = m.group(1)
                else:
                    print("ERROR Summary:%s" % line)
                    continue
                state = 2
            elif (1 == state) and (0 < line.find('<td nowrap>')):
                # <td nowrap>Insufficient Information</td>
                href = ''
                m = re.search('nowrap>(.+?)<', line)
                if m:
                    summary = m.group(1)
                else:
                    print("ERROR Summary:%s" % line)
                    continue
                state = 2
            elif (2 == state) and (0 < line.find('<td>')):
                # <td>Weaknesses in this category are related to improper calculation or conversion of numbers.</td>
                m = re.search('<td>(.*?)</td>', line)
                if m:
                    description = m.group(1)
                else:
                    print("ERROR Desc:%s" % line)
                    continue

                cwe, created = CweTable.objects.get_or_create(name=name)
                index = name.find('-')
                if name[index+1].isdigit():
                    cwe.name_sort = '%s-%04d' % (name[0:index],int(name[index+1:]))
                else:
                    cwe.name_sort = name
                cwe.href = href
                cwe.summary = summary
                cwe.description = description
                cwe.save()
                state = 0

    def nist_cpe(self, root):
        #<cpe-list
        #  <cpe-item name="cpe:/a:1024cms:1024_cms:0.7">
        #    <title xml:lang="en-US">1024cms.org 1024 CMS 0.7</title>
        #    <cpe-23:cpe23-item name="cpe:2.3:a:1024cms:1024_cms:0.7:*:*:*:*:*:*:*"/>
        #  </cpe-item>

        i = 1
        last_key_prime = ''
        last_key_sub = ''
        for child_1 in root:
            if 'cpe-item' in child_1.tag:
                for child_2 in child_1:
                    if 'cpe23-item' in child_2.tag:
                        cpe23Uri = child_2.attrib['name']
                        # Add to general CPE Table
                        if not cpe23Uri:
                            cpe23Uri = 'cpe:2.3:o:missing:missing:*:*:*:*:*:*:*:*'
                        cpe_fields = cpe23Uri.split(':')
                        key_prime = cpe_fields[3]
                        key_sub = cpe_fields[4]
                        if (key_prime == last_key_prime) and (key_sub == last_key_sub):
                            continue
                        last_key_prime = key_prime
                        last_key_sub = key_sub
                        # add top-level key_prime
                        cpe_filter, created = CpeFilter.objects.get_or_create(key_prime=key_prime,key_sub='')
                        if created:
                            cpe_filter.save()
                        # add full key_prime:key_sub
                        cpe_filter, created = CpeFilter.objects.get_or_create(key_prime=key_prime,key_sub=key_sub)
                        if created:
                            cpe_filter.save()
                        print("[%d]cpe23Uri='%s',%s,%s" % (i,cpe23Uri,key_prime,key_sub))
                        i += 1

    def nist_cpe_csv(self, csvfile_name):
        # Status,Company,Product,Auto

        i=0
        with open(csvfile_name, newline='') as csvfile:
            CPE_reader = csv.reader(csvfile, delimiter=',', quotechar='"')
            last_company = ''
            last_product = ''
            for row in CPE_reader:
                i += 1
                if (i>1) and len(row):
                    if 'i' == row[0]:
                        status = CpeFilter.INCLUDE
                    elif 'x' == row[0]:
                        status = CpeFilter.EXCLUDE
                    elif 'r' == row[0]:
                        status = CpeFilter.UNDECIDED
                    else:
                        status = CpeFilter.UNDECIDED
                    company = row[1]
                    product = row[2]
                    if 'a' == row[3]:
                        auto = True
                    else:
                        auto = False

                    if (last_company == company) and (last_product == product):
                        continue
                    last_company = company
                    last_product = product
                    # add top-level last_company
                    cpe_filter, created = CpeFilter.objects.get_or_create(key_prime=company,key_sub='')
                    cpe_filter.status = status
                    cpe_filter.automatic = auto
                    cpe_filter.save()
                    # add full last_company:product
                    cpe_filter, created = CpeFilter.objects.get_or_create(key_prime=company,key_sub=product)
                    cpe_filter.status = status
                    cpe_filter.automatic = auto
                    cpe_filter.save()

                    if 0 == i % 10:
                        print('%04d: %20s\r' % (i,company), end='')
#                    print("[%d]cpe23Uri=%s,%s" % (i,company,product))


    def cve_keywords_old(self, csvfile_name):
        # mode,type,keyword,weight
        # y,key,abiword,

        KEY_MODE=0
        KEY_TYPE=1
        KEY_KEY=2
        KEY_WEIGHT=3

        i_index=0
        is_header = True
        with open(csvfile_name, newline='') as csvfile:
            CPE_reader = csv.reader(csvfile, delimiter=',', quotechar='"')
            for row in CPE_reader:
                if is_header or not len(row):
                    is_header = False
                    continue

                if (KEY_WEIGHT+1) != len(row):
                    print("KEY_ROWLEN_ERROR:'%s'" % row)
                    continue

                i_index += 1
                if 0 == i_index % 100:
                    print('%04d: %20s\r' % (i_index,row[KEY_KEY]), end='')

#                # DEBUG ### TODO
#                if 0 < Command.debug_jira_limit:
#                    if i_index > Command.debug_jira_limit:
#                        return

                k, created = Keywords.objects.get_or_create(keyword=row[KEY_KEY])
                if 'y' == row[KEY_MODE]:
                    k.key_mode = Keywords.FOR
                else:
                    k.key_mode = Keywords.AGAINST
                if 'keyword' == row[KEY_KEY]:
                    k.key_type = Keywords.KEYWORD
                else:
                    k.key_type = Keywords.CPE
                if row[KEY_WEIGHT]:
                    k.weight = int(row[KEY_WEIGHT])
                else:
                    if Keywords.FOR == k.key_mode:
                        k.weight = 1
                    else:
                        k.weight = -1
                k.save()

    def cve_keywords(self, csvfile_name):
        # mode,type,keyword,weight
        # y,key,abiword,

        KEY_MODE=0
        KEY_TYPE=1
        KEY_KEY=2
        KEY_WEIGHT=3

        keywords_for = ''
        keywords_against = ''

        i_index=0
        is_header = True
        with open(csvfile_name, newline='') as csvfile:
            CPE_reader = csv.reader(csvfile, delimiter=',', quotechar='"')
            for row in CPE_reader:
                if is_header or not len(row):
                    is_header = False
                    continue

                if (KEY_WEIGHT+1) != len(row):
                    print("KEY_ROWLEN_ERROR:'%s'" % row)
                    continue

                i_index += 1
                if 0 == i_index % 100:
                    print('%04d: %20s\r' % (i_index,row[KEY_KEY]), end='')

                key = row[KEY_MODE]
                if '#' == key[0]:
                    key = key[1:]

                if 'y' == key:
                    keywords_for += "|%s,%s" % (row[KEY_KEY],row[KEY_WEIGHT])
                elif 'n' == key:
                    keywords_against += "|%s,%s" % (row[KEY_KEY],row[KEY_WEIGHT])

        setting = SrtSetting.objects.get_or_create(name='keywords_for')[0]
        setting.value = keywords_for[1:]
        setting.save()
        setting = SrtSetting.objects.get_or_create(name='keywords_against')[0]
        setting.value = keywords_against[1:]
        setting.save()
        
        S = SrtSetting.objects.get(name='keywords_for')
        #print("FOO_FOR:[%s]='%s'" % (S.name,S.value[0:30]))
        S = SrtSetting.objects.get(name='keywords_against')
        #print("FOO_NOT:[%s]='%s'" % (S.name,S.value[0:30]))


    def debug_set_cve(self,key,public,vulnerability,wr_comments,wr_comments_private):
        try:
            c = Cve.objects.get(name=key)
            c.public = public
            c.wr_comments = wr_comments
            c.wr_comments_private = wr_comments_private
            c.save()
            if vulnerability:
                v = Vulnerability.objects.get(name=vulnerability)
                cv, created = CveToVulnerablility.objects.get_or_create(vulnerability=v,cve=c)
                cv.save()
        except ObjectDoesNotExist:
            print("Cve %s not found" % key)

    def update(self):
        """
            Fetches CVE data from the registered data sources
        """
        os.system('setterm -cursor off')

        logger.info("***LS UPDATES***")

        try:
            from urllib.request import urlopen, URLError
            from urllib.parse import urlparse
        except ImportError:
            from urllib2 import urlopen, URLError
            from urlparse import urlparse

        data_sources=DataSource.objects.all()
        for source in data_sources:

            if source.loaded:
                logger.info("Skipping source data from %s",source.file_path)
                print("Skipping CVE data for %s (already loaded)" % (source.description))
                continue
            else:
                logger.info("Fetching source data from %s",source.file_path)
                print("Fetching source data for '%s'" % (source.description))

            file_path = source.file_path
            url_path = source.url
            dct = None
            root = None
            content = None
            source_doc = None
            # prefer the file path before the url
            if file_path:
                # load the file
                source_doc = source.file_path
                if not source.file_path.startswith('/'):
                    file_path = os.path.join(os.getenv('SRT_BASE_DIR'), source.file_path)
                    source.loaded = True
                    source.save()
                if not os.path.isfile(file_path):
                    logger.error("Data file not found '%s'" % (file_path))
                    continue
                if 'json' == source.type:
                    with open(file_path) as json_data:
                        dct = json.load(json_data)
                elif 'xml' == source.type:
                    tree = ET.parse(file_path)
                    root = tree.getroot()
                elif 'csv' == source.type:
                    csvfile_name = file_path
                else:
                    with open(file_path) as text_data:
                        content = text_data.read()
            elif url_path:
                # load the HTML page
                source_doc = source.url
                try:
                   f = urlopen(href)
                   content = f.read().decode('UTF-8')
                   f.close()
                except URLError as e:
                    raise Exception("Failed to open %s: %s" % (href, e.reason))
                    continue
            else:
                # no data source path to load
                logger.error("Unknown data source path for '%s' (%s,%s) " % (source.source.description,source.file_path,source.url))
                continue


            # testing shortcut
            if ('nist' == source.source) and ('yes' == SrtSetting.objects.get(name='TEST_SKIP_NIST_IMPORT').value):
                continue
            
            # Common data sources
            if 'common' == source.source:
                if 'triage_keywords' == source.data:
                    self.cve_keywords(csvfile_name)
                    source.loaded = True
                    source.save()
                    continue

            # Common Vulnerabilities and Exposures
            if 'cve' == source.data:
                if 'nist' == source.source and 'json' == source.type:
                    self.nist_jason(dct)
                    source.loaded = True
                    source.save()
                    continue
            # Common Weakness Enumeration
            if 'cwe' == source.data:
                if 'nist' == source.source and 'html' == source.type:
                    self.nist_cwe(content)
                    source.loaded = True
                    source.save()
                    continue
            # Common Product Enumeration
            if 'cpe' == source.data:
                if 'nist' == source.source and 'xml' == source.type:
                    self.nist_cpe(root)
                    source.loaded = True
                    source.save()
                    continue
                if 'nist' == source.source and 'csv' == source.type:
                    self.nist_cpe_csv(csvfile_name)
                    source.loaded = True
                    source.save()
                    continue
 

            # data source not handled
            logger.error("Unknown data source type for '%s' (%s,%s,%s) " % (source.file_path,source.data,source.source,source.type))

        # TEST DEBUG
#        self.debug_set_cve('CVE-2017-0002',False,'','','')
#        self.debug_set_cve('CVE-2017-0010',False,'','','')
        self.debug_set_cve('CVE-2017-5753',True,'V0000','Spectre Variant 1: Bounds check bypass','community calling this "spectre"')
        self.debug_set_cve('CVE-2017-5715',True,'V0000','Spectre Variant 2: Branch target injection','see if this will required compiler changes')
        self.debug_set_cve('CVE-2017-5754',True,'V0000','Meltdown: Rogue data cache load, memory access permission check performed after kernel memory read','mostly for Intel parts')

        os.system('setterm -cursor on')

    def handle(self, **options):

        # testing shortcuts
        if 'yes' == SrtSetting.objects.get(name='TEST_MINIMAL_DB').value:
            print("TEST: MINIMAL DATABASE LOADING")
            Command.debug_cve_count = 10   # 0 for any
            Command.debug_include_id_prefix = 'XXX'   # always include CVEs with this prefix
            Command.status_sustaining_limit = 10
            Command.debug_jira_limit = 10
            Command.cpe_limit = 10

        self.update()