【发布时间】：2020-03-17 10:42:54
【问题描述】：
我必须使用 Microsoft Azure 功能通过 HTTP 设置 FTP，但是当尝试连接到 FTP 服务器时，客户端超时并抛出“ERR_GENERIC_CLIENT”错误并退出。我确定问题来自 FTP 客户端配置，但我找不到要更改的内容。 天蓝色的功能：
let Client = require('ssh2-sftp-client');
let client = new Client();
module.exports = async function (context, req) {
context.log('JavaScript HTTP trigger function processed a request.');
const boundary = req.headers['content-type'].split('=')[1];
const splitedBody = req.body.toString().split(boundary);
let parsedBody = {};
let errors = [];
splitedBody.forEach(field => {
if (field.includes('name=')) {
if (!field.includes('filename')) {
let regex = /name="(.*?)"\r\n\r\n(.*)/g;
let m = regex.exec(field);
parsedBody[m[1]] = m[2];
}
else {
let regex = /Content-Type:\s(.*?)\s\s(((.*)\s)*)--/;
let m = regex.exec(field);
let file = field.split(m[1])[1]
file = file.substring(4, file.length - 4);
fileBuffer = Buffer.from(file);
let fileNameRegex = /filename="(.*?)"/g;
let fileName = fileNameRegex.exec(field)[1];
parsedBody.file = file;
parsedBody.buffer = fileBuffer;
parsedBody.fileName = fileName;
}
}
});
const config = {
host: parsedBody.host,
port: parseInt(parsedBody.port),
username: parsedBody.user,
password: parsedBody.password,
tryKeyboard: true,
readyTimeout: 5000
};
try {
await client.connect(config);
try {
let result = await client.put(
parsedBody.buffer,
parsedBody.path,
{
flags: 'w', // w - write and a - append
encoding: null, // use null for binary files
mode: 0o666, // mode to use for created file (rwx)
autoClose: true // automatically close the write stream when finished
})
}
catch (e) {
errors.push({e, msg: 'put'});
context.log(`main error: ${e.message}`);
}
}
catch (e) {
errors.push({e, msg: 'connect'});
context.log(e);
}
finally {
client.end();
}
context.res = {
body: {
config,
errors
}
};
};
为了测试，我使用了一个小的虚拟 HTML 表单
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>ftp over http</title>
</head>
<body>
<form action="azure function URL" enctype="multipart/form-data" method="post">
<input type="hidden" name="host" value="ftp.server.address">
<input type="hidden" name="port" value="21">
<input type="hidden" name="path" value="/test/">
<input type="hidden" name="user" value="username">
<input type="hidden" name="password" value="password">
<div>
Text field title: <input type="text" name="title" /></div>
<div>
File: <input type="file" name="file" /></div>
<input type="submit" value="Upload" />
</form>
</body>
</html>```
When I submit the form all I receive is the unhelpfull and undocumented "ERR_GENERIC_CLIENT" code.
【问题讨论】：
-
Azure 逻辑应用提供内置的客户端 ftp 功能。您是否考虑过使用它而不是通过 Azure Function 构建自己的 ftp 客户端？
-
嗨 Zak，请问您的问题是否已解决？如果解决方案有效，请您accept 将其作为答案（单击我的答案旁边的复选标记，将其从灰色切换为已填充）。提前致谢。