You can generate captcha without install any other libraries or software, only do npm install ccap, that's all.
support node 0.12.x and 4.x.x
node-ccap support linux, windows and mac.
compile maybe cost you 1 minute,simply wait;
linux support jpeg,windows and mac only support bmp!
Please never using ccap in production on windows and mac, only with linux.
##performance
generate captcha picture 1204/sec;//BMP unzip
##Install
npm install ccap (new version, need node 0.12.x and 4.x.x and 6.x.x, on linux need gcc v4.8+)
npm install ccap@0.5.3 (stop update, need node 0.8.x - 0.10.x)
var ccap = require('ccap')
if you don't want to update gcc version, ccap package Compiled file is in folder release, just download it and copy it to your node_modules.
if you are in China (and behind the GWF), please use cnpm to install ccap like this
1.npm install cnpm -g --registry=https://registry.npm.taobao.org
2.cnpm install node-gyp -g
2.cnpm install ccap
##Instantiated
these three ways all will be ok:
var captcha = ccap();
var captcha = ccap(width, height, offset);
var captcha = ccap({
width:256,//set width,default is 256
height:60,//set height,default is 60
offset:40,//set text spacing,default is 40
quality:100,//set pic quality,default is 50
fontsize:57,//set font size,default is 57
generate:function(){//Custom the function to generate captcha text
//generate captcha text here
return text;//return the captcha text
}
});
##API
var captcha = ccap();
var ary = captcha.get();//ary[0] is captcha's text,ary[1] is captcha picture buffer.
var text = ary[0];
var buffer = ary[1];
##Simple Example
var http = require('http');
var ccap = require('ccap')();//Instantiated ccap class
http.createServer(function (request, response) {
if(request.url == '/favicon.ico')return response.end('');//Intercept request favicon.ico
var ary = ccap.get();
var txt = ary[0];
var buf = ary[1];
response.end(buf);
console.log(txt);
}).listen(8124);
console.log('Server running at http://127.0.0.1:8124/');
#Stop and start timer cache
var ccap = require('ccap')();
ccap.timerIsRunning(); //now timer is running, return 1
ccap.clearTimeout(); //stop all create capature image, so will use the same the 20(default is 20) capature images
ccap.timerIsRunning();//now timer is stoped, return 0
captcha8.setTimeout();//now timer is start again
ccap.timerIsRunning();//now timer is stoped, return 1
Copyright (c) 2013 wu zhonghua <snoopyxdy@gmail.com>
The MIT License
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