Login

hide emails with PIL - template filter

Author:
dekomote
Posted:
October 24, 2009
Language:
Python
Version:
1.1
Score:
1 (after 1 ratings)

This template filter converts email text to image with the email text. It uses PIL and it makes the image as high and wide as the text.

This template filter is intended to be used as anti-spider protection.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
from PIL import Image, ImageDraw, ImageFont
import md5
import os
import sys

def mailhide(value):
    email_md5 = md5.new(value).hexdigest()
    email_path = os.path.join(MEDIA_ROOT, EMAIL_THUMBNAILS).replace('\\', '/')
    em_file_path = os.path.join(email_path, email_md5 + '.png').replace('\\', '/')
    if not os.path.exists(email_path):
       os.mkdir(email_path)
    if not os.path.exists(em_file_path):
        img = Image.new('RGBA',(1,1))
        font = ImageFont.truetype(FONT_PATH, FONT_SIZE)
        draw = ImageDraw.ImageDraw(img)
        w,h = draw.textsize(value, font = font)
        img = img.resize((w,h))
        draw = ImageDraw.ImageDraw(img)
        draw.text((0,0),value, font = font, fill = FONT_COLOR)
        img.save(em_file_path)
    
    result = '<img src = "%s%s/%s.png"/>'%(MEDIA_URL, EMAIL_THUMBNAILS,email_md5)
    
    return mark_safe(result)

More like this

  1. Mask sensitive data from logger by agusmakmun 1 month ago
  2. Template tag - list punctuation for a list of items by shapiromatron 1 year, 3 months ago
  3. JSONRequestMiddleware adds a .json() method to your HttpRequests by cdcarter 1 year, 3 months ago
  4. Serializer factory with Django Rest Framework by julio 1 year, 10 months ago
  5. Image compression before saving the new model / work with JPG, PNG by Schleidens 1 year, 11 months ago

Comments

NickJones (on November 18, 2010):

Also, if you change

img = Image.new('RGBA', (1,1))

into

img = Image.new('RGBA', (1,1), (255,0,0,0))

it anti-aliases non-black fonts correctly. You can also remove

draw = ImageDraw.ImageDraw(img)
w,h = draw.textsize(value, font=font)

and replace it with

w,h = font.getsize(value)

#

Please login first before commenting.