Get meta information of images.
Note:
- Make sure the picture contains location information, otherwise the location cannot be obtained you need to fill in your email address to use the function in gps_utils.py:
geolocator = Nominatim(user_agent = "your email")
Code language: JavaScript (javascript)
Requirements:
- PIL==1.1.6
- ExifRead==2.3.1
- geopy==2.0.0
Source Code:
author_utils.py
import ctypes as ctypes
from ctypes import wintypes as wintypes
import os
import sys
kernel32 = ctypes.WinDLL('kernel32', use_last_error=True)
advapi32 = ctypes.WinDLL('advapi32', use_last_error=True)
ERROR_INVALID_FUNCTION = 0x0001
ERROR_FILE_NOT_FOUND = 0x0002
ERROR_PATH_NOT_FOUND = 0x0003
ERROR_ACCESS_DENIED = 0x0005
ERROR_SHARING_VIOLATION = 0x0020
SE_FILE_OBJECT = 1
OWNER_SECURITY_INFORMATION = 0x00000001
GROUP_SECURITY_INFORMATION = 0x00000002
DACL_SECURITY_INFORMATION = 0x00000004
SACL_SECURITY_INFORMATION = 0x00000008
LABEL_SECURITY_INFORMATION = 0x00000010
_DEFAULT_SECURITY_INFORMATION = (OWNER_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION |
LABEL_SECURITY_INFORMATION)
LPDWORD = ctypes.POINTER(wintypes.DWORD)
SE_OBJECT_TYPE = wintypes.DWORD
SECURITY_INFORMATION = wintypes.DWORD
class SID_NAME_USE(wintypes.DWORD):
_sid_types = dict(enumerate('''
User Group Domain Alias WellKnownGroup DeletedAccount
Invalid Unknown Computer Label'''.split(), 1))
def __init__(self, value=None):
if value is not None:
if value not in self.sid_types:
raise ValueError('invalid SID type')
wintypes.DWORD.__init__(value)
def __str__(self):
if self.value not in self._sid_types:
raise ValueError('invalid SID type')
return self._sid_types[self.value]
def __repr__(self):
return 'SID_NAME_USE(%s)' % self.value
PSID_NAME_USE = ctypes.POINTER(SID_NAME_USE)
class PLOCAL(wintypes.LPVOID):
_needs_free = False
def __init__(self, value=None, needs_free=False):
super(PLOCAL, self).__init__(value)
self._needs_free = needs_free
def __del__(self):
if self and self._needs_free:
kernel32.LocalFree(self)
self._needs_free = False
PACL = PLOCAL
class PSID(PLOCAL):
def __init__(self, value=None, needs_free=False):
super(PSID, self).__init__(value, needs_free)
def __str__(self):
if not self:
raise ValueError('NULL pointer access')
sid = wintypes.LPWSTR()
advapi32.ConvertSidToStringSidW(self, ctypes.byref(sid))
try:
return sid.value
finally:
if sid:
kernel32.LocalFree(sid)
class PSECURITY_DESCRIPTOR(PLOCAL):
def __init__(self, value=None, needs_free=False):
super(PSECURITY_DESCRIPTOR, self).__init__(value, needs_free)
self.pOwner = PSID()
self.pGroup = PSID()
self.pDacl = PACL()
self.pSacl = PACL()
# back references to keep this object alive
self.pOwner._SD = self
self.pGroup._SD = self
self.pDacl._SD = self
self.pSacl._SD = self
def get_owner(self, system_name=None):
if not self or not self.pOwner:
raise ValueError('NULL pointer access')
return look_up_account_sid(self.pOwner, system_name)
def get_group(self, system_name=None):
if not self or not self.pGroup:
raise ValueError('NULL pointer access')
return look_up_account_sid(self.pGroup, system_name)
def _check_bool(result, func, args):
if not result:
raise ctypes.WinError(ctypes.get_last_error())
return args
# msdn.microsoft.com/en-us/library/aa376399
advapi32.ConvertSidToStringSidW.errcheck = _check_bool
advapi32.ConvertSidToStringSidW.argtypes = (
PSID, # _In_ Sid
ctypes.POINTER(wintypes.LPWSTR)) # _Out_ StringSid
# msdn.microsoft.com/en-us/library/aa379166
advapi32.LookupAccountSidW.errcheck = _check_bool
advapi32.LookupAccountSidW.argtypes = (
wintypes.LPCWSTR, # _In_opt_ lpSystemName
PSID, # _In_ lpSid
wintypes.LPCWSTR, # _Out_opt_ lpName
LPDWORD, # _Inout_ cchName
wintypes.LPCWSTR, # _Out_opt_ lpReferencedDomainName
LPDWORD, # _Inout_ cchReferencedDomainName
PSID_NAME_USE) # _Out_ peUse
# msdn.microsoft.com/en-us/library/aa446645
advapi32.GetNamedSecurityInfoW.restype = wintypes.DWORD
advapi32.GetNamedSecurityInfoW.argtypes = (
wintypes.LPWSTR, # _In_ pObjectName
SE_OBJECT_TYPE, # _In_ ObjectType
SECURITY_INFORMATION, # _In_ SecurityInfo
ctypes.POINTER(PSID), # _Out_opt_ ppsidOwner
ctypes.POINTER(PSID), # _Out_opt_ ppsidGroup
ctypes.POINTER(PACL), # _Out_opt_ ppDacl
ctypes.POINTER(PACL), # _Out_opt_ ppSacl
ctypes.POINTER(PSECURITY_DESCRIPTOR)) # _Out_opt_ ppSecurityDescriptor
def look_up_account_sid(sid, system_name=None):
SIZE = 256
name = ctypes.create_unicode_buffer(SIZE)
domain = ctypes.create_unicode_buffer(SIZE)
cch_name = wintypes.DWORD(SIZE)
cch_domain = wintypes.DWORD(SIZE)
sid_type = SID_NAME_USE()
advapi32.LookupAccountSidW(system_name, sid, name, ctypes.byref(cch_name),
domain, ctypes.byref(cch_domain), ctypes.byref(sid_type))
return name.value, domain.value, sid_type
def get_file_security(filename, request=_DEFAULT_SECURITY_INFORMATION):
# N.B. This query may fail with ERROR_INVALID_FUNCTION
# for some filesystems.
pSD = PSECURITY_DESCRIPTOR(needs_free=True)
error = advapi32.GetNamedSecurityInfoW(filename, SE_FILE_OBJECT, request,
ctypes.byref(pSD.pOwner), ctypes.byref(pSD.pGroup),
ctypes.byref(pSD.pDacl), ctypes.byref(pSD.pSacl),
ctypes.byref(pSD))
if error != 0:
raise ctypes.WinError(error)
return pSD
def get_author(filename):
if isinstance(filename, bytes):
if hasattr(os, 'fsdecode'):
filename = os.fsdecode(filename)
else:
filename = filename.decode(sys.getfilesystemencoding())
pSD = get_file_security(filename)
owner_name, owner_domain, owner_sid_type = pSD.get_owner()
if owner_domain:
owner_name = '{}\\{}'.format(owner_domain, owner_name)
return owner_name
gps_utils.py
import exifread
import requests
from geopy.geocoders import Nominatim
def format_lati_long(data):
list_tmp=str(data).replace('[', '').replace(']', '').split(',')
list=[ele.strip() for ele in list_tmp]
if (list[-1].find('/') != -1):
data_sec = int(list[-1].split('/')[0]) /(int(list[-1].split('/')[1])*3600)
else:
data_sec = int(list[-1])/3600
data_minute = int(list[1])/60
data_degree = int(list[0])
result=data_degree + data_minute + data_sec
return result
def get_location(filename):
img=exifread.process_file(open(filename,'rb'))
latitude=format_lati_long(str(img['GPS GPSLatitude']))
longitude=format_lati_long(str(img['GPS GPSLongitude']))
geolocator = Nominatim(user_agent = "your email")
position = geolocator.reverse(str(latitude) + ',' + str(longitude))
return position.address
Code language: PHP (php)
get_meta_from_pic.py
from PIL import Image
from PIL.ExifTags import TAGS
from author_utils import get_file_security, get_author
from gps_utils import get_location
import os
import sys
from datetime import datetime
def get_exif(image):
image.verify()
return image._getexif()
def get_labeled_exif(exif):
labeled = {}
for (key, val) in exif.items():
labeled[TAGS.get(key)] = val
return labeled
im = Image.open(sys.argv[1])
# get the image name
name = im.filename
# get the image size
w, h = im.size
# get the image file extension
_, file_extension = os.path.splitext(sys.argv[1])
# get the exif information
exif = get_exif(im)
labeled = get_labeled_exif(exif)
# get the file creation time
ctime = os.path.getctime(sys.argv[1])
# output information
print("ImageName: %s" %(name))
print("size: %sx%s" % (w, h))
print("FileExtension: %s" %(file_extension))
if ('ExifImageWidth' in labeled.keys()):
print("ImageWidth: %s" % (labeled['ExifImageWidth']))
else:
print("No ImageWidth")
if ('ExifImageHeight' in labeled.keys()):
print("ImageHeight: %s" % (labeled['ExifImageHeight']))
else:
print("No ImageHeight")
if ('DateTimeOriginal' in labeled.keys()):
print("DateTimeOriginal: %s" % (labeled['DateTimeOriginal']))
else:
print("No DateTimeOriginal")
print("CreateDate: %s" % (datetime.fromtimestamp(ctime).strftime('%Y-%m-%d %H:%M:%S')))
print("Author: %s" % (get_author(sys.argv[1])))
print("Location: %s" % (get_location(sys.argv[1])))
Code language: PHP (php)
Run the Code:
python get_meta_from_pic.py image_file
Code language: CSS (css)