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KoaHub.JS基于Node.js开发的Koa 生成验证码插件代
ccap
node.js generate captcha using c++ library CImg without install any other lib or software
node-ccap —— node.js generate captcha using c++ library CImg.
You can generate captcha without install any other libraries or software, only do npm install ccap, that‘s all.
node-ccap support linux and windows.
compile maybe cost you 1 minute,simply wait;
performance
generate captcha picture 697/sec;
Install
npm install ccap var ccap = require(‘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 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(‘../‘)();//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/‘);
授权协议
基于MIT协议发布:
The MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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代码详情:http://js.koahub.com/home/feature/ccap
KoaHub.JS基于Node.js开发的Koa 生成验证码插件代
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