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87
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1 """ Captcha.Visual.Tests
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2
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3 Visual CAPTCHA tests
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4 """
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5 #
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6 # PyCAPTCHA Package
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7 # Copyright (C) 2004 Micah Dowty <micah@navi.cx>
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8 #
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9
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10 from Captcha.Visual import Text, Backgrounds, Distortions, ImageCaptcha
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11 from Captcha import Words
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12 import random
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13
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14 __all__ = ["PseudoGimpy", "AngryGimpy", "AntiSpam"]
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15
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16
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17 class PseudoGimpy(ImageCaptcha):
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18 """A relatively easy CAPTCHA that's somewhat easy on the eyes"""
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19 def getLayers(self):
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20 word = Words.defaultWordList.pick()
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21 self.addSolution(word)
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22 return [
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23 # random.choice([
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24 # Backgrounds.CroppedImage(),
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25 # Backgrounds.TiledImage(),
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26 # ]),
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27 Text.TextLayer(word, borderSize=1),
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28 Distortions.SineWarp(),
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29 ]
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30
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31
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32 class AngryGimpy(ImageCaptcha):
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33 """A harder but less visually pleasing CAPTCHA"""
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34 def getLayers(self):
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35 word = Words.defaultWordList.pick()
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36 self.addSolution(word)
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37 return [
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38 # suppression du background
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39 # Backgrounds.TiledImage(),
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40 # Backgrounds.RandomDots(),
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41 Text.TextLayer(word, borderSize=1),
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42 Distortions.SineWarp(periodRange = (0.04, 0.07))
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43 # Distortions.WigglyBlocks(),
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44 ]
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45
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46
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47 class AntiSpam(ImageCaptcha):
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48 """A fixed-solution CAPTCHA that can be used to hide email addresses or URLs from bots"""
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49 fontFactory = Text.FontFactory(20, "vera/VeraBd.ttf")
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50 defaultSize = (512,50)
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51
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52 def getLayers(self, solution="murray@example.com"):
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53 self.addSolution(solution)
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54
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55 textLayer = Text.TextLayer(solution,
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56 borderSize = 2,
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57 fontFactory = self.fontFactory)
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58
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59 return [
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60 Backgrounds.CroppedImage(),
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61 textLayer,
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62 Distortions.SineWarp(amplitudeRange = (3, 5)),
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63 ]
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64
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65 ### The End ###
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