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GetNonDomainDriveACLs.py
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GetNonDomainDriveACLs.py
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#!/usr/bin/env python3
"""
# Purpose: For a Google Drive User(s), show all drive file ACLs for files shared outside of a list of specified domains
# Note: This script can use GAM7 or Advanced GAM:
# https://github.com/GAM-team/GAM
# https://github.com/taers232c/GAMADV-XTD3
# Customize: Set DOMAIN_LIST, DOMAIN_EXPRESSIONS, EXCLUSIVE_DOMAINS, INCLUDE_ANYONE
# You specify a list of domains, DOMAIN_LIST, or a list of domain expressions, DOMAIN_EXPRESSIONS
# Indicate whether these lists are exclusive/inclusive
# EXCLUSIVE_DOMAINS = True: exclude domains in DOMAIN_LIST/DOMAIN_EXPRESSIONS from the output
# EXCLUSIVE_DOMAINS = False: include domains in DOMAIN_LIST/DOMAIN_EXPRESSIONS in the output
# You can include/exclude shares to anyone in the ouput
# INCLUDE_ANYONE = True: include shares to anyone in the output
# INCLUDE_ANYONE = False: exclude shares to anyone from the output
# Python: Use python or python3 below as appropriate to your system; verify that you have version 3
# $ python -V or python3 -V
# Python 3.x.y
# Usage:
# 1: Get ACLs for all files, if you don't want all users, replace all users with your user selection in the command below
# $ You can have GAM do some pre-filtering
# $ EXCLUSIVE_DOMAINS = True: You're interested only in domains not in DOMAIN_LIST which would typically be your internal domains
# Add the following clause to the command listing the domains in DOMAIN_LIST: pm not domainlist domain1.com,domain2.com em
# $ EXCLUSIVE_DOMAINS = False: You're interested only in domains in DOMAIN_LIST which would typically be external domains
# Add the following clause to the command listing the domains in DOMAIN_LIST: pm domainlist domain1.com,domain2.com em
# $ INCLUDE_ANYONE = True
# Add the following clause to the command: pm type anyone em
# $ gam config auto_batch_min 1 redirect csv ./filelistperms.csv multiprocess all users print filelist fields id,name,permissions,owners.emailaddress,mimetype <pm clauses> pmfilter
# 2: From that list of ACLs, output a CSV file with headers "Owner,driveFileId,driveFileTitle,mimeType,permissionId,role,type,emailAddress,domain,allowFileDiscovery"
# that lists the driveFileIds and permissionIds for all ACLs shared with the selected domains.
# (n.b., driveFileTitle, mimeType, role, type, emailAddress, domain and allowFileDiscovery are not used in the next step, they are included for documentation purposes)
# $ python3 GetNonDomainDriveACLs.py filelistperms.csv deleteperms.csv
# 3: Inspect deleteperms.csv, verify that it makes sense and then proceed
# 4: If desired, delete the ACLs
# $ gam csv ./deleteperms.csv gam user "~Owner" delete drivefileacl "~driveFileId" "~permissionId"
"""
import csv
import re
import sys
FILE_NAME = 'name'
ALT_FILE_NAME = 'title'
# Define your domain(s) in the list below,
# e.g., DOMAIN_LIST = ['domain.com'] DOMAIN_LIST = ['domain1.com', 'domain2.com']
DOMAIN_LIST = []
# Provide a list of regular expressions that define your domains(s),
# e.g., DOMAIN_EXPRESSIONS = [re.compile(r'@domain\.com$')] DOMAIN_EXPRESSIONS = [re.compile(r'@.*domain1\.com$'0, re.compile(r'@.*domain2\.com$')]
DOMAIN_EXPRESSIONS = []
# Indicate whether the list is exclusive or inclusive
# EXCLUSIVE_DOMAINS = True: You're interested only in domains not in DOMAIN_LIST/DOMAIN_EXPRESSIONS which would typically be your internal domains
# EXCLUSIVE_DOMAINS = False: You're interested only in domains in DOMAIN_LIST/DOMAIN_EXPRESSIONS which would typically be external domains
EXCLUSIVE_DOMAINS = True
# Indicate whether shares to anyone should be included
INCLUDE_ANYONE = True
QUOTE_CHAR = '"' # Adjust as needed
LINE_TERMINATOR = '\n' # On Windows, you probably want '\r\n'
PERMISSIONS_N_TYPE = re.compile(r"permissions.(\d+).type")
def checkDomain(d):
if EXCLUSIVE_DOMAINS:
if DOMAIN_LIST and d in DOMAIN_LIST:
return False
for regex in DOMAIN_EXPRESSIONS:
if regex.search(d):
return False
else:
if DOMAIN_LIST and d not in DOMAIN_LIST:
return False
if DOMAIN_EXPRESSIONS:
for regex in DOMAIN_EXPRESSIONS:
if regex.search(d):
return True
return False
return not EXCLUSIVE_DOMAINS
if (len(sys.argv) > 2) and (sys.argv[2] != '-'):
outputFile = open(sys.argv[2], 'w', encoding='utf-8', newline='')
else:
outputFile = sys.stdout
outputCSV = csv.DictWriter(outputFile, ['Owner', 'driveFileId', 'driveFileTitle', 'mimeType',
'permissionId', 'role', 'type', 'emailAddress', 'domain', 'allowFileDiscovery'],
lineterminator=LINE_TERMINATOR, quotechar=QUOTE_CHAR)
outputCSV.writeheader()
if (len(sys.argv) > 1) and (sys.argv[1] != '-'):
inputFile = open(sys.argv[1], 'r', encoding='utf-8')
else:
inputFile = sys.stdin
for row in csv.DictReader(inputFile, quotechar=QUOTE_CHAR):
for k, v in iter(row.items()):
mg = PERMISSIONS_N_TYPE.match(k)
if mg and v:
permissions_N = mg.group(1)
if v == 'domain':
emailAddress = ''
domain = row[f'permissions.{permissions_N}.domain'].lower()
allowFileDiscovery = row.get(f'permissions.{permissions_N}.allowFileDiscovery', str(row.get(f'permissions.{permissions_N}.withLink') == 'False'))
elif v in ['user', 'group']:
if row.get(f'permissions.{permissions_N}.deleted') == 'True':
continue
emailAddress = row[f'permissions.{permissions_N}.emailAddress'].lower()
domain = emailAddress[emailAddress.find('@')+1:]
allowFileDiscovery = ''
else: #anyone
if not INCLUDE_ANYONE:
continue
domain = emailAddress = ''
allowFileDiscovery = row.get(f'permissions.{permissions_N}.allowFileDiscovery', str(row.get(f'permissions.{permissions_N}.withLink') == 'False'))
if ((v == 'anyone') or # Can only be true is INCLUDE_ANYONE = True
checkDomain(domain)):
outputCSV.writerow({'Owner': row['owners.0.emailAddress'],
'driveFileId': row['id'],
'driveFileTitle': row.get(FILE_NAME, row.get(ALT_FILE_NAME, 'Unknown')),
'mimeType': row['mimeType'],
'permissionId': f'id:{row[f"permissions.{permissions_N}.id"]}',
'role': row[f'permissions.{permissions_N}.role'],
'type': v,
'emailAddress': emailAddress,
'domain': domain,
'allowFileDiscovery': allowFileDiscovery})
if inputFile != sys.stdin:
inputFile.close()
if outputFile != sys.stdout:
outputFile.close()