/usr/share/pyshared/filebrowser/functions.py is in python-django-filebrowser 0+svn322-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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from django.utils.translation import ugettext as _
from django.utils.safestring import mark_safe
from time import gmtime, strftime, localtime, mktime, time
from django.core.files import File
import os, re, decimal
# get settings
from filebrowser.fb_settings import *
# PIL import
if STRICT_PIL:
from PIL import Image
else:
try:
from PIL import Image
except ImportError:
import Image
def _url_join(*args):
url = "/"
for arg in args:
arg_split = arg.split("/")
for elem in arg_split:
if elem != "":
url = url + elem + "/"
return url
def _get_path(dir_name):
"""
Get path.
"""
if dir_name:
path = dir_name + "/"
else:
path = ""
return path
def _get_subdir_list(dir_name):
"""
Get a list of subdirectories.
"""
subdir_list = []
if dir_name:
dirlink = ''
dir_items = dir_name.split('/')
dir_items.pop()
for dirname in dir_items:
dirlink = dirlink + dirname + '/'
subdir_list.append([dirname,dirlink])
return subdir_list
def _get_dir_list(dir_name):
"""
Get a list of directories.
"""
dir_list = []
if dir_name:
dir_items = dir_name.split('/')
dirname = dir_items.pop()
dir_list.append(dirname)
dir_list.append(dir_name)
return dir_list
def _get_breadcrumbs(query, dir_name, page):
"""
Get breadcrumbs.
"""
subdir_list = _get_subdir_list(dir_name)
dir_list = _get_dir_list(dir_name)
breadcrumbs = ""
if not query['pop']:
breadcrumbs = '<a href="%s">%s</a> › ' % (URL_HOME,_('Home'))
breadcrumbs = breadcrumbs + '<a href="%s%s">%s</a>' % (URL_ADMIN, query['query_str_total'], 'FileBrowser')
if subdir_list:
for item in subdir_list:
breadcrumbs = breadcrumbs + ' › <a href="%s%s%s">%s</a>' % (URL_ADMIN, item[1], query['query_str_total'], item[0])
if page:
if dir_list:
breadcrumbs = breadcrumbs + ' › <a href="%s%s/%s">%s</a> › %s' % (URL_ADMIN, dir_list[1], query['query_str_total'], dir_list[0], _(page))
else:
breadcrumbs = breadcrumbs + ' › %s' % (_(page))
elif dir_list:
breadcrumbs = breadcrumbs + ' › %s' % (dir_list[0])
return mark_safe(breadcrumbs)
def _get_sub_query(items, var_1, var_2, var_3):
"""
Get subquery.
"""
querystring= ''
for k,v in items:
if k != var_1 and k != var_2 and k != var_3:
querystring = querystring + "&" + k + "=" + v
return querystring
def _get_query(request_var):
"""
Construct query.
"""
query = {}
if request_var:
query['query_str_total'] = "?"
for k,v in request_var.items():
if k in ['o', 'ot', 'q', 'filter_date', 'filter_type', 'pop', 'mce_rdomain']:
query['query_str_total'] = query['query_str_total'] + "&" + k + "=" + v
#query['query_str_total'] = "?" + "&".join(["%s=%s" % (k, v) for k, v in request_var.items()])
query['query_nofilterdate'] = _get_sub_query(request_var.items(), 'filter_date', '', '')
query['query_nofiltertype'] = _get_sub_query(request_var.items(), 'filter_type', '', '')
query['query_nosearch'] = _get_sub_query(request_var.items(), 'q', '', '')
query['query_nosort'] = _get_sub_query(request_var.items(), 'o', 'ot', '')
query['query_nodelete'] = "?" + _get_sub_query(request_var.items(), 'filename', 'type', '')
if request_var.get('pop'):
query['pop'] = "pop=" + request_var.get('pop')
query['pop_toolbar'] = request_var.get('pop')
if query['pop'] == 'pop=2' and 'mce_rdomain' in request_var:
query['mce_rdomain'] = request_var['mce_rdomain']
query['pop'] = "%s&mce_rdomain=%s" % (query['pop'], request_var['mce_rdomain'])
else:
query['pop'] = ''
query['pop_toolbar'] = ""
else:
query['query_str_total'] = "?"
query['query_nodelete'] = ""
query['pop'] = ""
query['pop_toolbar'] = ""
query['ot'] = request_var.get('ot', 'desc')
query['o'] = request_var.get('o', '3')
query['filter_type'] = request_var.get('filter_type', '')
query['q'] = request_var.get('q', '')
query['filter_date'] = request_var.get('filter_date', '')
if query['ot'] == 'asc':
query['ot_new'] = 'desc'
elif query['ot'] == 'desc':
query['ot_new'] = 'asc'
return query
def _get_filterdate(filterDate, dateTime):
"""
Get filterdate.
"""
returnvalue = ''
dateYear = strftime("%Y", gmtime(dateTime))
dateMonth = strftime("%m", gmtime(dateTime))
dateDay = strftime("%d", gmtime(dateTime))
if filterDate == 'today' and int(dateYear) == int(localtime()[0]) and int(dateMonth) == int(localtime()[1]) and int(dateDay) == int(localtime()[2]): returnvalue = 'true'
elif filterDate == 'thismonth' and dateTime >= time()-2592000: returnvalue = 'true'
elif filterDate == 'thisyear' and int(dateYear) == int(localtime()[0]): returnvalue = 'true'
elif filterDate == 'past7days' and dateTime >= time()-604800: returnvalue = 'true'
return returnvalue
def _get_filesize(filesize_long):
"""
Get filesize in a readable format.
"""
filesize_str = ''
if filesize_long < 1000:
filesize_str = str(filesize_long) + " B"
elif filesize_long >= 1000 and filesize_long < 1000000:
filesize_str = str(filesize_long/1000) + " kB"
elif filesize_long >= 1000000:
filesize_str = str(filesize_long/1000000) + " MB"
return mark_safe(filesize_str)
def _make_filedict(file_list):
"""
Make a dict out of the file_list.
This is for better readability in the templates.
"""
file_dict = []
for item in file_list:
temp_list = {}
temp_list['filename'] = item[0]
temp_list['filesize_long'] = item[1]
temp_list['filesize_str'] = item[2]
temp_list['date'] = item[3]
temp_list['path_thumb'] = item[4]
temp_list['link'] = item[5]
temp_list['select_link'] = item[6]
temp_list['save_path'] = item[7]
temp_list['file_extension'] = item[8]
temp_list['file_type'] = item[9]
temp_list['image_dimensions'] = item[10]
temp_list['thumb_dimensions'] = item[11]
temp_list['filename_lower'] = item[12]
temp_list['flag_makethumb'] = item[13]
temp_list['flag_deletedir'] = item[14]
temp_list['flag_imageversion'] = item[15]
file_dict.append(temp_list)
return file_dict
def _get_settings_var(http_post, path):
"""
Get all settings variables.
"""
settings_var = {}
settings_var['URL_WWW'] = URL_WWW
settings_var['URL_ADMIN'] = URL_ADMIN
settings_var['URL_HOME'] = URL_HOME
settings_var['URL_FILEBROWSER_MEDIA'] = URL_FILEBROWSER_MEDIA
settings_var['URL_TINYMCE'] = URL_TINYMCE
settings_var['PATH_SERVER'] = PATH_SERVER
#settings_var['PATH_FILEBROWSER_MEDIA'] = PATH_FILEBROWSER_MEDIA
settings_var['PATH_TINYMCE'] = PATH_TINYMCE
settings_var['EXTENSIONS'] = EXTENSIONS
settings_var['MAX_UPLOAD_SIZE'] = _get_filesize(MAX_UPLOAD_SIZE)
settings_var['IMAGE_MAXBLOCK'] = IMAGE_MAXBLOCK
settings_var['THUMB_PREFIX'] = THUMB_PREFIX
settings_var['THUMBNAIL_SIZE'] = THUMBNAIL_SIZE
settings_var['USE_IMAGE_GENERATOR'] = USE_IMAGE_GENERATOR
settings_var['IMAGE_GENERATOR_DIRECTORY'] = IMAGE_GENERATOR_DIRECTORY
settings_var['IMAGE_GENERATOR_LANDSCAPE'] = IMAGE_GENERATOR_LANDSCAPE
settings_var['IMAGE_GENERATOR_PORTRAIT'] = IMAGE_GENERATOR_PORTRAIT
settings_var['FORCE_GENERATOR'] = FORCE_GENERATOR
return settings_var
def _handle_file_upload(PATH_SERVER, path, file):
"""
Handle File Upload.
"""
file_path = os.path.join(PATH_SERVER, path, file.name)
destination = open(file_path, 'wb+')
for chunk in file.chunks():
destination.write(chunk)
def _get_file_type(filename):
"""
Get file type as defined in EXTENSIONS.
"""
file_extension = os.path.splitext(filename)[1].lower()
file_type = ''
for k,v in EXTENSIONS.iteritems():
for extension in v:
if file_extension == extension.lower():
file_type = k
return file_type
def _make_image_thumbnail(PATH_SERVER, path, filename):
"""
Make Thumbnail for an Image.
"""
file_path = os.path.join(PATH_SERVER, path, filename)
thumb_path = os.path.join(PATH_SERVER, path, THUMB_PREFIX + filename)
msg = ""
try:
im = Image.open(file_path)
im.thumbnail(THUMBNAIL_SIZE, Image.ANTIALIAS)
im.save(thumb_path)
except IOError:
msg = "%s: %s" % (file.name, _('Thumbnail creation failed.'))
return msg
def _image_generator(PATH_SERVER, path, filename):
"""
Generate Versions for an Image.
"""
# PIL's Error "Suspension not allowed here" work around:
# s. http://mail.python.org/pipermail/image-sig/1999-August/000816.html
if STRICT_PIL:
from PIL import ImageFile
else:
try:
from PIL import ImageFile
except ImportError:
import ImageFile
ImageFile.MAXBLOCK = IMAGE_MAXBLOCK # default is 64k
file_path = os.path.join(PATH_SERVER, path, filename)
versions_path = os.path.join(PATH_SERVER, path, filename.replace(".", "_").lower() + IMAGE_GENERATOR_DIRECTORY)
if not os.path.isdir(versions_path):
os.mkdir(versions_path)
os.chmod(versions_path, 0775)
im = Image.open(file_path)
dimensions = im.size
current_width = dimensions[0]
current_height = dimensions[1]
msg = ""
if int(current_width) > int(current_height):
generator_to_use = IMAGE_GENERATOR_LANDSCAPE
else:
generator_to_use = IMAGE_GENERATOR_PORTRAIT
for prefix in generator_to_use:
image_path = os.path.join(versions_path, prefix[0] + filename)
try:
# DIMENSIONS
ratio = decimal.Decimal(0)
ratio = decimal.Decimal(current_width)/decimal.Decimal(current_height)
new_size_width = prefix[1]
new_size_height = int(new_size_width/ratio)
new_size = (new_size_width, new_size_height)
# ONLY MAKE NEW IMAGE VERSION OF ORIGINAL IMAGE IS BIGGER THAN THE NEW VERSION
# OTHERWISE FAIL SILENTLY
if int(current_width) > int(new_size_width):
# NEW IMAGE
new_image = im.resize(new_size, Image.ANTIALIAS)
new_image.save(image_path, quality=90, optimize=1)
# MAKE THUMBNAIL
_make_image_thumbnail(PATH_SERVER, os.path.join(path, filename.replace(".", "_").lower() + IMAGE_GENERATOR_DIRECTORY), prefix[0] + filename)
elif FORCE_GENERATOR_RUN:
im.save(image_path)
_make_image_thumbnail(PATH_SERVER, os.path.join(path, filename.replace(".", "_").lower() + IMAGE_GENERATOR_DIRECTORY), prefix[0] + filename)
except IOError:
msg = "%s: %s" % (filename, _('Image creation failed.'))
return msg
def scale_and_crop(im, requested_size, opts):
x, y = [float(v) for v in im.size]
xr, yr = [float(v) for v in requested_size]
if 'crop' in opts:
r = max(xr/x, yr/y)
else:
r = min(xr/x, yr/y)
if r < 1.0 or (r > 1.0 and 'upscale' in opts):
im = im.resize((int(x*r), int(y*r)), resample=Image.ANTIALIAS)
if 'crop' in opts:
x, y = [float(v) for v in im.size]
ex, ey = (x-min(x, xr))/2, (y-min(y, yr))/2
if ex or ey:
im = im.crop((int(ex), int(ey), int(x-ex), int(y-ey)))
return im
def _image_crop_generator(PATH_SERVER, path, filename):
"""
Generate Cropped Versions for an Image.
"""
# PIL's Error "Suspension not allowed here" work around:
# s. http://mail.python.org/pipermail/image-sig/1999-August/000816.html
if STRICT_PIL:
from PIL import ImageFile
else:
try:
from PIL import ImageFile
except ImportError:
import ImageFile
ImageFile.MAXBLOCK = IMAGE_MAXBLOCK # default is 64k
file_path = os.path.join(PATH_SERVER, path, filename)
versions_path = os.path.join(PATH_SERVER, path, filename.replace(".", "_").lower() + IMAGE_GENERATOR_DIRECTORY)
if not os.path.isdir(versions_path):
os.mkdir(versions_path)
os.chmod(versions_path, 0775)
im = Image.open(file_path)
msg = ""
for prefix in IMAGE_CROP_GENERATOR:
image_path = os.path.join(versions_path, prefix[0] + filename)
try:
cropped_image = scale_and_crop(im, (prefix[1], prefix[2]), ['crop'])
cropped_image.save(image_path, quality=90, optimize=1)
# MAKE THUMBNAIL
_make_image_thumbnail(PATH_SERVER, os.path.join(path, filename.replace(".", "_").lower() + IMAGE_GENERATOR_DIRECTORY), prefix[0] + filename)
except IOError:
msg = "%s: %s" % (filename, _('Image creation failed.'))
return msg
def _is_image_version(file):
image_version = False
for item in IMAGE_GENERATOR_LANDSCAPE:
if file.startswith(item[0]):
image_version = True
for item in IMAGE_GENERATOR_PORTRAIT:
if file.startswith(item[0]):
image_version = True
for item in IMAGE_CROP_GENERATOR:
if file.startswith(item[0]):
image_version = True
return image_version
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