使用来自 node.js 的 AWS SES 在邮件中上传 .jpg 图像附件 [英] upload .jpg image attachment in mail using AWS SES from node.js
问题描述
以下是来自 https://github.com/andrewpuch/aws-ses 的代码-node-js-examples 那里有一个例子要发送和带附件的电子邮件，
Below is the code from https://github.com/andrewpuch/aws-ses-node-js-examples where there is an example to send and email with attachment,
我修改了代码以从 aws s3 获取图像文件并将其与邮件作为附件一起发送，当我为文本文件执行此操作时，它运行良好，但是当我发送图像时，在邮件中我是无法看到图像，因为它已损坏.
I have modified the code to fetch a image file from aws s3 and and send it with mail as attachment, when i did it for an text file it work perfectly, but when I have sent an image, in the mail I was not able to see the image since it is corrupted.
当我尝试使用苹果照片应用程序打开时，它显示缺少元数据，并且当我尝试使用 utf8、utf-8 和 UTF- 时，我还在邮件的标题中添加了 Content-Transfer-Encoding: base64-8 在标题中的 Content-Transfer-Encoding 我从 aws 得到以下响应
when I tried opening with apple photo app it has shown that meta data is missing, also I have added Content-Transfer-Encoding: base64 in the header of the mail, when I tried with utf8, utf-8 and UTF-8 in Content-Transfer-Encodingin the header I got the below response from aws
{
"message": "Unknown encoding: utf8",
"code": "InvalidParameterValue",
"time": "2017-03-14T08:42:43.571Z",
"requestId": "2e220c33-0892-11e7-8a5a-1114bbc28c3e",
"statusCode": 400,
"retryable": false,
"retryDelay": 29.798455792479217
}
我修改后的代码以发送带有邮件的图像附件，我什至尝试将缓冲区编码为 utf-8、base-64，浪费了足够的时间，不知道为什么它已损坏，如果有人以前这样做过，帮帮我
My modified code to send an image attachment with mail, I even tried encoding the buffer to utf-8, base-64,wasted enough time on this, no clue why it is corrupted, if some one have done this before, help me
// Require objects.
var express = require('express');
var app = express();
var aws = require('aws-sdk');
// Edit this with YOUR email address.
var email = "*******@gmail.com";
// Load your AWS credentials and try to instantiate the object.
aws.config.loadFromPath(__dirname + '/config.json');
// Instantiate SES.
var ses = new aws.SES();
var s3 = new aws.S3();
// Verify email addresses.
app.get('/verify', function (req, res) {
var params = {
EmailAddress: email
};
ses.verifyEmailAddress(params, function (err, data) {
if (err) {
res.send(err);
}
else {
res.send(data);
}
});
});
// Listing the verified email addresses.
app.get('/list', function (req, res) {
ses.listVerifiedEmailAddresses(function (err, data) {
if (err) {
res.send(err);
}
else {
res.send(data);
}
});
});
// Deleting verified email addresses.
app.get('/delete', function (req, res) {
var params = {
EmailAddress: email
};
ses.deleteVerifiedEmailAddress(params, function (err, data) {
if (err) {
res.send(err);
}
else {
res.send(data);
}
});
});
// Sending RAW email including an attachment.
app.get('/send', function (req, res) {
var params = { Bucket: 's3mailattachments', Key: 'aadhar.jpg' };
var attachmentData;
s3.getObject(params, function (err, data) {
if (err)
console.log(err, err.stack); // an error occurred
else {
console.log(data.ContentLength);
console.log(data.ContentType);
console.log(data.Body);
var ses_mail = "From: 'AWS Tutorial Series' <" + email + ">
";
ses_mail = ses_mail + "To: " + email + "
";
ses_mail = ses_mail + "Subject: AWS SES Attachment Example
";
ses_mail = ses_mail + "MIME-Version: 1.0
";
ses_mail = ses_mail + "Content-Type: multipart/mixed; boundary="NextPart"
";
ses_mail = ses_mail + "--NextPart
";
ses_mail = ses_mail + "Content-Type: text/html; charset=us-ascii
";
ses_mail = ses_mail + "This is the body of the email.
";
ses_mail = ses_mail + "--NextPart
";
ses_mail = ses_mail + "Content-Type: image/jpeg;
";
ses_mail = ses_mail + "Content-Disposition: attachment; filename="aadhar.jpg"
";
ses_mail = ses_mail + "Content-Transfer-Encoding: base64
"
ses_mail = ses_mail + data.Body;
ses_mail = ses_mail + "--NextPart";
var params = {
RawMessage: { Data: new Buffer(ses_mail) },
Destinations: [email],
Source: "'AWS Tutorial Series' <" + email + ">'"
};
ses.sendRawEmail(params, function (err, data) {
if (err) {
res.send(err);
}
else {
res.send(data);
}
});
}
});
});
// Start server.
var server = app.listen(3003, function () {
var host = server.address().address;
var port = server.address().port;
console.log('AWS SES example app listening at http://%s:%s', host, port);
});
推荐答案
首先，您的 MIME 消息格式不正确.最后一行应该是 --NextPart-- 而不是 --NextPart.
First, your MIME message is not well formatted. The last line should be --NextPart-- instead of just --NextPart.
您还应该使用 new Buffer(data.Body).toString('base64') 将 data.Body 数组转换为其 base64 字符串表示，如下所示:
You should also convert the data.Body array into its base64 string representation using new Buffer(data.Body).toString('base64') as shown below:
var ses_mail = "From: 'AWS Tutorial Series' <" + email + ">
";
ses_mail += "To: " + email + "
";
ses_mail += "Subject: AWS SES Attachment Example
";
ses_mail += "MIME-Version: 1.0
";
ses_mail += "Content-Type: multipart/mixed; boundary="NextPart"
";
ses_mail += "--NextPart
";
ses_mail += "Content-Type: text/html; charset=us-ascii
";
ses_mail += "This is the body of the email.
";
ses_mail += "--NextPart
";
ses_mail += "Content-Type: image/jpeg;
";
ses_mail += "Content-Disposition: attachment; filename="aadhar.jpg"
";
ses_mail += "Content-Transfer-Encoding: base64
"
ses_mail += new Buffer(data.Body).toString('base64');
ses_mail += "--NextPart--";
然后，您可以将 ses_mail 字符串作为原始消息数据传递为 RawMessage: { Data: ses_mail } 而不是 RawMessage: { Data: new Buffer(ses_mail) }.
Then, you can pass the ses_mail string as raw message data as RawMessage: { Data: ses_mail } instead of RawMessage: { Data: new Buffer(ses_mail) }.
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