def to_python(self, data):
"""
Checks that the file-upload field data contains a valid image (GIF, JPG,
PNG, possibly others -- whatever the Python Imaging Library supports).
"""
f = super(ImageField, self).to_python(data)
if f is None:
return None
buffer = StringIO()
for chunk in data.chunks():
buffer.write(chunk)
buffer.reset()
try:
parser = ImageFileParser()
parser.feed(buffer.read())
parser.close()
except Exception:
raise ValidationError(self.error_messages['invalid_image'])
self.buffer = buffer
self.content_type = f.content_type
return data
def to_python(self, data):
"""
Checks that the file-upload field data contains a valid image (GIF, JPG,
PNG, possibly others -- whatever the Python Imaging Library supports).
"""
f = super(ImageField, self).to_python(data)
if f is None:
return None
buffer = StringIO()
for chunk in data.chunks():
buffer.write(chunk)
buffer.reset()
try:
parser = ImageFileParser()
parser.feed(buffer.read())
parser.close()
except Exception:
raise ValidationError(self.error_messages["invalid_image"])
self.buffer = buffer
self.content_type = f.content_type
return data
def send(request):
send_form = InviteForm(request.POST or None)
import_form = ImportInviteForm(request.POST or None, request.FILES)
sent = []
if send_form.is_valid():
sent.append(_send_invite(request.user,
send_form.cleaned_data['email'],
send_form.cleaned_data['name']))
if import_form.is_valid():
buffer = StringIO()
for chunk in request.FILES['file']:
buffer.write(chunk)
buffer.reset()
str = buffer.read()
if re.match(r'BEGIN\s*:\s*VCARD', str, re.IGNORECASE | re.MULTILINE):
file_type = 'vcard'
else:
file_type = 'csv'
buffer.reset()
contacts = []
if file_type == 'csv':
try:
encoding = chardet.detect(buffer.read())['encoding']
buffer.reset()
reader = codecs.getreader(encoding)(buffer)
buffer = StringIO()
buffer.write('\n'.join(reader.readlines()).encode('utf-8'))
buffer.reset()
reader = csv.DictReader(buffer)
for row in reader:
try:
email = row['E-mail Address']
first_name = row['First Name']
last_name = row['Last Name']
contacts.append((email, ('%s %s' %
(first_name, last_name)).decode('utf-8')))
except:
pass
except:
pass
elif file_type == 'vcard':
vobjects = vobject.readComponents(buffer)
while 1:
try:
vcf = vobjects.next()
if vcf.contents.has_key('email'):
contacts.append((vcf.email.value,
vcf.fn.value))
except Exception, e:
print e
break
for (email, name) in contacts:
sent.append(_send_invite(request.user, email, name))
