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| const request = require("request");
const fs = require('fs');
const httpRequest = require("../utils/httpRequest");
/*
* 上传文件
* @param {string} cloudPath 上传后的文件路径
* @param {fs.ReadStream} fileContent 上传文件的二进制流
*/
function uploadFile({ cloudPath, fileContent }, { onResponseReceived } = {}) {
let params = {
action: "storage.uploadFile",
path: cloudPath,
file: fileContent
};
return httpRequest({
config: this.config,
params,
method: "post",
headers: {
// "content-type": "multipart/form-data"
},
callback: (response) => {
onResponseReceived && typeof onResponseReceived === 'function' && onResponseReceived(response)
}
}).then((res) => {
Iif (res.code) {
return res;
} else {
return {
fileID: res.data.fileID,
requestId: res.requestId
};
}
});
}
/**
* 删除文件
* @param {Array.<string>} fileList 文件id数组
*/
async function deleteFile({ fileList }) {
Iif (!fileList || !Array.isArray(fileList)) {
return {
code: "INVALID_PARAM",
message: "fileList必须是非空的数组"
};
}
for (let file of fileList) {
Iif (!file || typeof file != "string") {
return {
code: "INVALID_PARAM",
message: "fileList的元素必须是非空的字符串"
};
}
}
let params = {
action: "storage.batchDeleteFile",
fileid_list: fileList
};
return httpRequest({
config: this.config,
params,
method: "post",
headers: {
"content-type": "application/json"
}
}).then(res => {
Iif (res.code) {
return res;
} else {
return {
fileList: res.data.delete_list,
requestId: res.requestId
};
}
});
}
/**
* 获取文件下载链接
* @param {Array.<Object>} fileList
*/
async function getTempFileURL({ fileList }) {
Iif (!fileList || !Array.isArray(fileList)) {
return {
code: "INVALID_PARAM",
message: "fileList必须是非空的数组"
};
}
let file_list = [];
for (let file of fileList) {
if (typeof file === 'object') {
Iif (
!file.hasOwnProperty("fileID") ||
!file.hasOwnProperty("maxAge")
) {
return {
code: "INVALID_PARAM",
message: "fileList的元素必须是包含fileID和maxAge的对象"
};
}
file_list.push({
fileid: file.fileID,
max_age: file.maxAge
});
} else Eif (typeof file === 'string') {
file_list.push({
fileid: file,
});
} else {
return {
code: "INVALID_PARAM",
message: "fileList的元素必须是字符串"
};
}
}
let params = {
action: "storage.batchGetDownloadUrl",
file_list
};
// console.log(params);
return httpRequest({
config: this.config,
params,
method: "post",
headers: {
"content-type": "application/json"
}
}).then(res => {
// console.log(res);
Iif (res.code) {
return res;
} else {
return {
fileList: res.data.download_list,
requestId: res.requestId
};
}
});
}
async function downloadFile({ fileID, tempFilePath }) {
let tmpUrl,
self = this;
try {
const tmpUrlRes = await this.getTempFileURL({
fileList: [
{
fileID,
maxAge: 600
}
]
});
// console.log(tmpUrlRes);
const res = tmpUrlRes.fileList[0]
Eif (
res.code != 'SUCCESS'
) {
return res;
}
tmpUrl = res.tempFileURL;
} catch (e) {
throw e
}
let req = request({
url: tmpUrl,
encoding: null,
proxy: self.config.proxy
});
return new Promise((resolve, reject) => {
let fileContent = Buffer.alloc(0)
req.on('response', function (response) {
if (response && +response.statusCode === 200) {
if (tempFilePath) {
response.pipe(fs.createWriteStream(tempFilePath));
} else {
response.on('data', (data) => {
fileContent = Buffer.concat([fileContent, data])
})
}
response.on('end', () => {
resolve({
fileContent: tempFilePath ? undefined : fileContent,
message: '文件下载完成'
})
})
} else {
reject(response)
}
});
});
}
exports.uploadFile = uploadFile;
exports.deleteFile = deleteFile;
exports.getTempFileURL = getTempFileURL;
exports.downloadFile = downloadFile;
|