rrestjs
Version:
HIgh performance node.js ROA & RESTFUL web framework.
227 lines (215 loc) • 8.1 kB
JavaScript
/*最多支持99个,后缀名是png*/
var captchapath = _rrest.config.baseDir + '/app/static/captcha_pic/',
captcha_ary = [
{id:1, url:captchapath,value:'东洋砍刀'},
{id:2, url:captchapath,value:'菊花一朵'},
{id:3, url:captchapath,value:'树叶'},
{id:4, url:captchapath,value:'鸭子'},
{id:5, url:captchapath,value:'蝴蝶'},
{id:6, url:captchapath,value:'小狗'},
{id:7, url:captchapath,value:'小鱼'},
{id:8, url:captchapath,value:'老鼠'},
{id:9, url:captchapath,value:'鼻涕猪'},
{id:10, url:captchapath,value:'黄色小老虎'},
{id:11, url:captchapath,value:'小白兔'},
{id:12, url:captchapath,value:'小龙'},
{id:13, url:captchapath,value:'小牛'},
{id:14, url:captchapath,value:'小猴子'},
{id:15, url:captchapath,value:'公鸡'},
{id:16, url:captchapath,value:'电脑'},
{id:17, url:captchapath,value:'三本书'},
{id:18, url:captchapath,value:'摄像头'},
{id:19, url:captchapath,value:'鸭子'},
{id:20, url:captchapath,value:'你好'},
{id:21, url:captchapath,value:'中国娃娃'},
{id:22, url:captchapath,value:'摩托头盔'},
{id:23, url:captchapath,value:'面具'},
{id:24, url:captchapath,value:'喇叭'},
{id:25, url:captchapath,value:'小猫和小鱼'},
{id:26, url:captchapath,value:'小猫'},
{id:27, url:captchapath,value:'胶片'},
{id:28, url:captchapath,value:'壁虎'},
{id:29, url:captchapath,value:'五角星'},
{id:30, url:captchapath,value:'耐克足球'},
{id:31, url:captchapath,value:'阿迪达斯足球'},
{id:32, url:captchapath,value:'puma足球'},
{id:33, url:captchapath,value:'足球场'},
{id:34, url:captchapath,value:'邮票'},
{id:35, url:captchapath,value:'耳机'},
{id:36, url:captchapath,value:'打印机'},
{id:37, url:captchapath,value:'单反相机'},
{id:38, url:captchapath,value:'大力神杯'},
{id:39, url:captchapath,value:'草坪'},
{id:40, url:captchapath,value:'哨子'},
{id:41, url:captchapath,value:'足球和草坪'},
{id:42, url:captchapath,value:'下大雨'},
{id:43, url:captchapath,value:'雷阵雨'},
{id:44, url:captchapath,value:'下雪'},
{id:45, url:captchapath,value:'太阳'},
{id:46, url:captchapath,value:'旧式电话'},
{id:47, url:captchapath,value:'两顶帽子'},
{id:48, url:captchapath,value:'夹子'},
{id:49, url:captchapath,value:'圣诞树'},
{id:50, url:captchapath,value:'箱子'},
{id:51, url:captchapath,value:'闹钟'},
{id:52, url:captchapath,value:'help'},
{id:53, url:captchapath,value:'鲸鱼'},
{id:54, url:captchapath,value:'松鼠'},
{id:55, url:captchapath,value:'胖猪'},
{id:56, url:captchapath,value:'小鸡'},
{id:57, url:captchapath,value:'企鹅'},
{id:58, url:captchapath,value:'小老鼠吃奶酪'},
{id:59, url:captchapath,value:'乌龟'},
{id:60, url:captchapath,value:'加减乘除'},
{id:61, url:captchapath,value:'螃蟹'},
{id:62, url:captchapath,value:'吉他'},
{id:63, url:captchapath,value:'救生圈'},
{id:64, url:captchapath,value:'棒冰'},
{id:65, url:captchapath,value:'滑板'},
{id:66, url:captchapath,value:'伞'},
{id:67, url:captchapath,value:'PSP正面'},
{id:68, url:captchapath,value:'毽子'},
{id:69, url:captchapath,value:'PSP背面'},
{id:70, url:captchapath,value:'三角圆圈方框叉'},
{id:71, url:captchapath,value:'男孩'},
{id:72, url:captchapath,value:'女孩'},
{id:73, url:captchapath,value:'感叹号'},
{id:74, url:captchapath,value:'液晶电视'},
{id:75, url:captchapath,value:'空购物车'},
{id:76, url:captchapath,value:'满购物车'},
{id:77, url:captchapath,value:'剪刀'},
{id:78, url:captchapath,value:'房子'},
{id:79, url:captchapath,value:'铃铛'},
]
var c_a = captcha_ary,
captcha={
lenth : c_a.length, //验证码题目数组长度
canum : 4, //每次出几个题目，这个值不能大于上面的
//cutpo : 5, //生成字符串截断位置，加密用
dbcolname:'piccaptcha'
};
captcha.generate = function(id){
var ts = (new Date()).getTime()+'';
if(parseInt(id, 10)<10){
var id = '0'+id;
}
var head = 10 + Math.ceil(Math.random()*89),
cutpo = head.toString().slice(-1);
var front = ts.slice(0, cutpo),
back = ts.slice(cutpo);
res = head+front+id+back;
return res;
}
captcha.decode = function(str){
var head = str.slice(1,2),
str = str.slice(2),
tsfront = str.slice(0, parseInt(head, 10)),
id = str.slice(parseInt(head, 10), parseInt(head, 10)+2),
intid = parseInt(id, 10),
tsback = str.slice(parseInt(head)+2),
ts = tsfront + tsback,
now = (new Date()).getTime();
if(now -ts > 1000*15) return false;
if(intid != id) return false;
return intid;
}
captcha.creat = function(cb){ //用户打开页面创建验证码
var ca = [];
for(var j=0;j<c_a.length;j++){ //这里需要深度复制数组，因为数组内的每项都是对象
ca[j]={}
for(var i in c_a[j]){
ca[j][i] = c_a[j][i]
}
}
var u_obj = this.getrandmon(ca, this.canum); //返回给用户做题目的数组
captcha.mongodbcreat(u_obj, cb);
}
captcha.mongodbcreat = function(u_obj, cb){
var ary = u_obj.ca_ary,
po = u_obj.po;
_pool.acquire(function(err, db_connector){
db_connector.collection(captcha.dbcolname, function(err, collection){
if (err){
_logger.err('创建验证码失败，连接集合失败'+err);
cb(false);
_pool.release(db_connector);
return true;
}
ary[po].timestamp = new Date();
ary[po].po = po;
collection.insert(ary[po], {safe:true}, function(err, doc){
_pool.release(db_connector);
if (err){
_logger.err('创建验证码失败，插入数据库失败'+err);
cb(false);
}
else{
var name = ary[po].value;
delete ary[po].po;
delete ary[po].timestamp;
for(var j=0;j<ary.length;j++){ //去掉name值
ary[j].url = '/piccaptcha?picid='+captcha.generate(ary[j].id);
delete ary[j].value;
delete ary[j].id;
}
cb({id:doc[0]._id, value:name, caary:ary});//返回给控制器回调函数的对象
}
})
})
})
}
captcha.contrast = function(id, po, cb){ //判断验证码
_pool.acquire(function(err, db_connector){
db_connector.collection(captcha.dbcolname, function(err, collection){
collection.findOne({'_id':db_connector.bson_serializer.ObjectID.createFromHexString(id)},function(err, r){
var res = false;
if(err) _logger.err('对比验证码失败：'+err);
else if(r && r.po == po) res=true; //如果对比成功，返回true，否则为false
_pool.release(db_connector);
captcha.destory('', id)
cb(res);
})
})
})
}
captcha.destory = function(timestamp, id){ //删除验证码
var delc = {"timestamp":{"$lt":new Date(timestamp)}}
_pool.acquire(function(err, db_connector){
if(typeof id !== 'undefined'){
delc = {"_id":db_connector.bson_serializer.ObjectID.createFromHexString(id)}
}
db_connector.collection(captcha.dbcolname, function(err, collection){
collection.remove(delc, function(err){
if(err) _logger.err('摧毁验证码失败：'+err);
_pool.release(db_connector);
})
})
})
}
captcha.getrandmon = function(ary, num){ //随机从数组中抽取num项记录作为验证码题目
var se_ary = ary,
ca_ary = [];
for(var i=0; i<num; i++){
var n = Math.floor(Math.random()*se_ary.length);
ca_ary.push(se_ary.splice(n,1)[0])
}
var po = Math.floor(Math.random()*ca_ary.length);
return {"po":po, "ca_ary":ca_ary};
}
captcha.intial = function(){ //初始化，异步脚本删除验证码
process.nextTick(function(){
_pool.acquire(function(err, db_connector){ //建立集合
db_connector.createCollection(captcha.dbcolname, function(err, col){
if(err) _logger.error(err)
else _logger.info('创建piccaptcha集合成功:'+col.collectionName);
_pool.release(db_connector);
})
})
setInterval(function () {
var now = (new Date()).getTime()-1000*60*30;
captcha.destory(now);
}, 1000*60*30);
});
}()
module.exports = captcha;
module.exports.captcha_ary = captcha_ary;