class ChineseIdiomCaptcha(ImageCaptcha):
"""A fixed-solution CAPTCHA that can be used to hide email addresses or URLs from bots"""
fontFactory = Text.FontFactory(16, "cn/simyou.ttf")
defaultSize = (80, 25)
def __init__(self, solution=u'验证码', from_list=True):
if from_list:
idiom_chinese = Words.WordList("basic-english",
minLength=5,
maxLength=8)
self.solution = idiom_chinese.pick()
else:
self.solution = solution
super(ChineseIdiomCaptcha, self).__init__()
def getLayers(self):
self.addSolution(self.solution)
textLayer = Text.TextLayer(self.solution,
borderSize=2,
fontFactory=self.fontFactory)
return [
Backgrounds.CroppedImage(),
textLayer,
Distortions.SineWarp(amplitudeRange=(1, 1)),
]
class EnglishWordCaptcha(ImageCaptcha):
"""A fixed-solution CAPTCHA that can be used to hide email addresses or URLs from bots"""
fontFactory = Text.FontFactory(16, "vera/Vera.ttf")
defaultSize = (80, 25)
def __init__(self, solution=u'验证码', from_list=True):
if from_list:
self.solution = Words.basic_english_restricted.pick()
else:
self.solution = solution
super(EnglishWordCaptcha, self).__init__()
def getLayers(self):
self.addSolution(self.solution)
textLayer = Text.TextLayer(self.solution,
borderSize=1,
fontFactory=self.fontFactory)
return [
random.choice([Backgrounds.TiledImage()]),
textLayer,
Distortions.SineWarp(),
]
class NumberCaptcha(ImageCaptcha):
"""A fixed-solution CAPTCHA that can be used to hide email addresses or URLs from bots"""
fontFactory = Text.FontFactory(16, "vera/Vera.ttf")
defaultSize = (60, 24)
def __init__(self, digits=4):
if digits > 10:
digits = 10
self.solution = ''.join(
['%s' % i for i in random.sample(range(0, 10), digits)])
super(NumberCaptcha, self).__init__()
def getLayers(self):
self.addSolution(self.solution)
textLayer = Text.TextLayer(self.solution,
borderSize=1,
fontFactory=self.fontFactory)
return [ # random.choice([ Backgrounds.TiledImage() ]),
[
Backgrounds.SolidColor('white'),
Backgrounds.RandomDots(
colors=['yellow', 'blue', 'green', 'red'], numDots=10)
],
textLayer,
Distortions.SineWarp(),
]
def getLayers(self):
word = Words.defaultWordList.pick()
self.addSolution(word)
return [
Backgrounds.SolidColor(),
Text.TextLayer(word, fontFactory=Text.FontFactory((15, 15), "vera"),
textColor='black', borderSize=0),
Distortions.WarpBase(),
]
class RandCaptcha(ImageCaptcha):
defaultSize = (120, 50)
fontFactory = Text.FontFactory(18, "vera/VeraBd.ttf")
def getLayers(self, solution="blah"):
self.addSolution(solution)
return ((Backgrounds.Grid(size=8, foreground="white"),
Distortions.SineWarp(amplitudeRange=(5, 9))),
(Text.TextLayer(solution,
textColor='white',
fontFactory=self.fontFactory),
Distortions.SineWarp()))
class AntiSpam(BaseRender):
fontFactory = Text.FontFactory(20, "vera/VeraBd.ttf")
def get_layers(self, word):
textLayer = Text.TextLayer(word,
borderSize=1,
fontFactory=self.fontFactory)
return [
Backgrounds.CroppedImage(),
textLayer,
Distortions.SineWarp(amplitudeRange=(2, 4)),
]
def getLayers(self):
word = WordList('basic-english').pick()
self.addSolution(word)
return [
random.choice(
[Backgrounds.CroppedImage(),
Backgrounds.TiledImage()]),
Text.TextLayer(word,
borderSize=1,
fontFactory=Text.FontFactory(18,
"vera/VeraBd.ttf")),
Distortions.SineWarp()
]
class AntiSpam(ImageCaptcha):
"""A fixed-solution CAPTCHA that can be used to hide email addresses or URLs from bots"""
fontFactory = Text.FontFactory(20, "vera/VeraBd.ttf")
defaultSize = (512,50)
def getLayers(self, solution="*****@*****.**"):
self.addSolution(solution)
textLayer = Text.TextLayer(solution,
borderSize = 2,
fontFactory = self.fontFactory)
return [
Backgrounds.CroppedImage(),
textLayer,
Distortions.SineWarp(amplitudeRange = (2, 4)),
]
class BaseRender(object):
defaultSize = (100, 30)
defaultfontfactory = Text.FontFactory(20, "vera")
def __init__(self):
self.fontfactory = None
self._word = None
def render(self, word=None, size=None):
if size is None:
size = self.defaultSize
if not word:
word = self.word
return word, self.__do_render(self.get_layers(word),
Image.new("RGB", size))
def get_layers(self, word):
return self.renderlist
def set_font_factory(self, factory):
self.fontfactory = factory
def get_font_factory(self):
if not self.fontfactory:
return self.defaultfontfactory
return self.fontfactory
def __get_word(self):
if not self._word:
self._word = Words.defaultWordList.pick()
return self._word
word = property(__get_word)
def __do_render(self, _list, img):
for i in _list:
if isinstance(i, (tuple, list)):
img = self.__do_render(img)
else:
img = i.render(img) or img
return img
def getLayers(self):
word = self.word
ff = Text.FontFactory(26, self.font)
bg = random.choice([
Backgrounds.SolidColor(),
Backgrounds.CroppedImage(),
Backgrounds.TiledImage(),
])
bg = (bg, Backgrounds.Grid(),
Distortions.SineWarp(amplitudeRange=(6, 10),
periodRange=(0.1, 0.4)))
layers = [
bg,
]
if not self.easyMode:
layers.append(Backgrounds.RandomDots())
layers.extend([ #Distortions.WigglyBlocks(),
Text.TextLayer(word, borderSize=1, fontFactory=ff),
Distortions.SineWarp()
#Distortions.SineWarp()
])
return layers