A captcha library that generates audio and image CAPTCHAs.
- Audio CAPTCHAs DEMO
- Image CAPTCHAs
Install captcha with pip:
$ pip install captcha
Audio and Image CAPTCHAs are in separated modules:
from captcha.audio import AudioCaptcha
from captcha.image import ImageCaptcha
audio = AudioCaptcha(voicedir='/path/to/voices')
image = ImageCaptcha(fonts=['/path/A.ttf', '/path/B.ttf'])
data = audio.generate('1234')
audio.write('1234', 'out.wav')
data = image.generate('1234')
image.write('1234', 'out.png')This is the APIs for your daily works. We do have built-in voice data and font data. But it is suggested that you use your own voice and font data.
For quick prototyping you may not want to import font data, below are some examples of how to create objects that can be used with the example above.
We can build our customized voice library with the help of espeak and ffmpeg:
export ESLANG=en
mkdir $ESLANG
for i in {a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,0,1,2,3,4,5,6,7,8,9}; do mkdir $ESLANG/$i; espeak -a 150 -s 100 -p 15 -v$ESLANG $i -w $ESLANG/$i/orig_default.wav; ffmpeg -i $ESLANG/$i/orig_default.wav -ar 8000 -ac 1 -acodec pcm_u8 $ESLANG/$i/default.wav; rm $ESLANG/$i/orig_default.wav; done
We need voice wav files. The voice wav file should be in 8-bit, please keep it as small as possible. Name your voice file as:
{{language}}-{{character}}-{{username}}.wav
# example: zh-1-lepture.wav
TODO: we need a place to upload voice files.