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sign.js
48 lines (42 loc) · 1.01 KB
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sign.js
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var createNonceStr = function() {
return Math.random().toString(36).substr(2, 15);
};
var createTimestamp = function() {
return parseInt(new Date().getTime() / 1000) + '';
};
var raw = function(args) {
var keys = Object.keys(args);
keys = keys.sort();
var newArgs = {};
keys.forEach(function(key) {
newArgs[key.toLowerCase()] = args[key];
});
var string = '';
for (var k in newArgs) {
string += '&' + k + '=' + newArgs[k];
}
string = string.substr(1);
return string;
};
/**
* @synopsis 签名算法
*
* @param jsapi_ticket 用于签名的 jsapi_ticket
* @param url 用于签名的 url ,注意必须动态获取,不能 hardcode
*
* @returns
*/
var sign = function(jsapiTicket, url) {
var ret = {
'jsapi_ticket': jsapiTicket,
nonceStr: createNonceStr(),
timestamp: createTimestamp(),
url: url
};
var string = raw(ret);
jsSHA = require('jssha');
shaObj = new jsSHA(string, 'TEXT');
ret.signature = shaObj.getHash('SHA-1', 'HEX');
return ret;
};
module.exports = sign;