如何将png文件上传到S3存储桶? [英] How to upload a png file to S3 Bucket?

问题描述

尝试使用 S3-for-Google-上传png文件将Apps-Script 库添加到S3存储桶:

Trying to upload a png file using S3-for-Google-Apps-Script library to S3 bucket:

// get the image blob
const imgBlob = UrlFetchApp.fetch('imageUrl').getBlob();

// init S3 instance
const s3 = S3.getInstance(awsAccessKeyId, awsSecretKey);

// upload the image to S3 bucket
s3.putObject(bucketName, 'test.png', imgBlob, { logRequests:true });

文件正在上传到S3，但不是完美的方式！看起来像这样:

The file is uploading to S3 but not in a perfect way! It looks like this:

如果我下载图像并打开获取error:

If I download the image and open getting the error:

它可能已损坏或使用了预览无法识别的文件格式."

"It may be damaged or use a file format that Preview doesn’t recognize."

那么，如何将.png文件上传到亚马逊S3存储桶?

So, how can I upload a .png file to amazon S3 bucket?

当将'base64'用于s3.putObject()时，我可以正确上传图像:

I can correctly upload the image when 'base64' is used to s3.putObject():

const base64 = Utilities.base64Encode(imgBlob.getBytes());
s3.putObject(bucketName, 'test.png', base64, { logRequests:true });
// go to S3 and clicking on the link I can see the base64 string

但这是作为String上传的，例如当我去S3&单击test.png，我会看到类似的内容:"iVBORw0KGgoAAAANSUhEUgAAAgAAAAI ... II="，但是我想查看实际的图像，而不是String.

But this is uploading as String e.g. when I go S3 & click on test.png I see something like this: "iVBORw0KGgoAAAANSUhEUgAAAgAAAAI ... II=", but I want to see the actual image, not a String.

推荐答案

我相信您的情况和目标如下.

I believe your situation and goal as follows.

• 根据您的情况，可以上传图像的base64数据.但是，上传的数据不是图像.这是字符串数据.
• 您的目标是要使用图像URL上传公共共享图像的图像文件.

为此，这个答案如何?

当我看到"S3-for-Google-Apps-Script"的脚本时，似乎URL无法直接用于s3.putObject().并且，使用getDataAsString()将输入的Blob转换为字符串类型.我认为这是您遇到问题的原因.

When I saw the script of "S3-for-Google-Apps-Script", it seems that the URL cannot be directly used for s3.putObject(). And, the inputted blob is converted to the string type using getDataAsString(). I think that this is the reason of your issue.

在这个答案中，我想建议修改GAS库"S3-for-Google-Apps-Script"，以将字节数组用于payload.

In this answer, I would like to propose to modify the GAS library of "S3-for-Google-Apps-Script" for using the byte array to payload.

首先，请复制 S3-for-Google- Apps-Script ，请进行如下修改.

At first, please copy the GAS project of S3-for-Google-Apps-Script, and please modify this as follows.

关于S3.gs文件中的S3.prototype.putObject，请进行以下修改.

About S3.prototype.putObject in the file of S3.gs, please modify as follows.

request.setContent(object.getDataAsString());

到:

request.setContent(object.getBytes());

并且，关于S3Request.gs文件中的S3Request.prototype.setContent，请进行以下修改.

And, about S3Request.prototype.setContent in the file of S3Request.gs, please modify as follows.

if (typeof content != 'string') throw 'content must be passed as a string'

到:

// if (typeof content != 'string') throw 'content must be passed as a string'

并且，关于S3Request.gs文件中的S3Request.prototype.getContentMd5_，请进行以下修改.

And, about S3Request.prototype.getContentMd5_ in the file of S3Request.gs, please modify as follows.

return Utilities.base64Encode(Utilities.computeDigest(Utilities.DigestAlgorithm.MD5, this.content, Utilities.Charset.UTF_8));

到:

return Utilities.base64Encode(Utilities.computeDigest(Utilities.DigestAlgorithm.MD5, this.content));

示例脚本:

对于上述修改后的脚本，请测试以下脚本.

Sample script:

And, for above modified script, please test the following script.

const imageUrl = "###";  // Please set the image URL.
const s3 = S3.getInstance(awsAccessKeyId, awsSecretKey);  // Please set them.

const imageBlob = UrlFetchApp.fetch(imageUrl).getBlob();
s3.putObject(bucketName, 'test.png', imageBlob, { logRequests:true });

• 这样，您的令牌可以由修改后的库创建并使用.
• 当我检查这份正式文件时，我认为字节数组可能可以使用.
• By this, your token can be created by the modified library and use it.
• When I checked this official document, I thought that the byte array might be able to be used.
• PutObject
• S3-for-Google-Apps-Script
• PutObject
• S3-for-Google-Apps-Script

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