const env = require('./env.js');
const Base64 = require('./Base64.js');
require('./crypto/hmac.js');
require('./crypto/sha1.js');
const Crypto = require('./crypto/crypto.js');
const uploadFile = function (filePath, fileW, objectId, successCB, errorCB) {
if (!filePath || filePath.length < 9) {
wx.showModal({
title: '视频错误',
content: '请重试',
showCancel: false,
})
return;
}
console.log('上传视频…');
//const aliyunFileKey = fileW+filePath.replace('wxfile://', '');
const aliyunFileKey = fileW + '' + (new Date().getTime()) + '_' + objectId + '.mp4';
const aliyunServerURL = env.aliyunServerURL;
const accessid = env.accessid;
const policyBase64 = getPolicyBase64();
const signature = getSignature(policyBase64);
console.log('aliyunFileKey=', aliyunFileKey);
wx.uploadFile({
url: aliyunServerURL, //仅为示例,非真实的接口地址
filePath: filePath,
name: 'file',
formData: {
'key': aliyunFileKey,
'OSSAccessKeyId': accessid,
'policy': policyBase64,
'Signature': signature,
'success_action_status': '200',
},
success: function (res) {
if (res.statusCode != 200) {
errorCB(new Error('上传错误:' + JSON.stringify(res)))
return;
}
console.log('上传视频成功', res)
successCB(aliyunFileKey);
},
fail: function (err) {
err.wxaddinfo = aliyunServerURL;
errorCB(err);
},
})
}
const getPolicyBase64 = function () {
let date = new Date();
date.setHours(date.getHours() + env.timeout);
let srcT = date.toISOString();
const policyText = {
"expiration": srcT, //设置该Policy的失效时间,超过这个失效时间之后,就没有办法通过这个policy上传文件了 指定了Post请求必须发生在2020年01月01日12点之前("2020-01-01T12:00:00.000Z")。
"conditions": [
["content-length-range", 0, 20 * 1024 * 1024] // 设置上传文件的大小限制,1048576000=1000mb
]
};
const policyBase64 = Base64.encode(JSON.stringify(policyText));
return policyBase64;
}
const getSignature = function (policyBase64) {
const accesskey = env.accesskey;
const bytes = Crypto.HMAC(Crypto.SHA1, policyBase64, accesskey, {
asBytes: true
});
const signature = Crypto.util.bytesToBase64(bytes);
return signature;
}
module.exports = uploadFile;