[英]How do I upload a gzip object to s3?
I am creating a gzip string and uploading it as an object to s3. 我正在创建一个gzip字符串并将其作为对象上传到s3。 However when I download the same file from s3 and decompress it locally with gunzip I get this error:
gunzip: 111.gz: not in gzip format
When I look at the mime_content_type returned in the file downloaded from s3 it is set as: application/zlib
但是,当我从s3下载相同的文件并使用gunzip在本地解压缩时,我收到此错误:
gunzip: 111.gz: not in gzip format
当我查看从s3下载的文件中返回的mime_content_type时,它设置为: application/zlib
Here is the code I am running to generate the gzip file and push it to s3: 这是我运行的代码,用于生成gzip文件并将其推送到s3:
for($i=0;$i<=100;$i++) {
$content .= $i . "\n";
}
$result = $this->s3->putObject(array(
'Bucket' => 'my-bucket-name',
'Key' => '111.gz',
'Body' => gzcompress($content),
'ACL' => 'authenticated-read',
'Metadata' => [
'ContentType' => 'text/plain',
'ContentEncoding' => 'gzip'
]
));
The strange thing is that if I view the gzip content locally before I send it to s3 I am able to decompress it and see the original string. 奇怪的是,如果我在将其发送到s3之前在本地查看gzip内容,我可以将其解压缩并查看原始字符串。 So I must be uploading the file incorrectly, any thoughts?
所以我必须正确上传文件,有什么想法吗?
According to http://docs.aws.amazon.com/aws-sdk-php/v3/api/api-s3-2006-03-01.html#putobject the ContentType and ContentEncoding parameters belong on top level, and not under Metadata. 根据http://docs.aws.amazon.com/aws-sdk-php/v3/api/api-s3-2006-03-01.html#putobject,ContentType和ContentEncoding参数属于顶级,而不是元数据。 So your call should look like:
所以你的电话应该是这样的:
$result = $this->s3->putObject(array(
'Bucket' => 'my-bucket-name',
'Key' => '111.gz',
'Body' => gzcompress($content),
'ACL' => 'authenticated-read',
'ContentType' => 'text/plain',
'ContentEncoding' => 'gzip'
));
Also it's possible that by setting ContentType to text/plain your file might be truncated whenever a null-byte occurs. 此外,通过将ContentType设置为text / plain,可能会在发生空字节时截断文件。 I would try with'application/gzip' if you still have problems unzipping the file.
如果解压缩文件仍有问题,我会尝试使用'application / gzip'。
I had a very similar issue, and the only way to make it work for our file was with a code like this (slightly changed according to your example): 我有一个非常类似的问题,使它适用于我们的文件的唯一方法是使用这样的代码(根据你的例子略有改变):
$this->s3->putObject(array(
'Bucket' => 'my-bucket-name',
'Key' => '111.gz',
'Body' => gzcompress($content, 9, ZLIB_ENCODING_GZIP),
'ACL' => 'public-read',
'ContentType' => 'text/javascript',
'ContentEncoding' => 'gzip'
));
The relevant part being gzcompress($content, 9, ZLIB_ENCODING_GZIP)
, as AWS S3 wouldn't recognize the file nor serve it in the right format without the last ZLIB_ENCODING_GZIP
parameter. 相关部分是
gzcompress($content, 9, ZLIB_ENCODING_GZIP)
,因为AWS S3在没有最后一个ZLIB_ENCODING_GZIP
参数的情况下无法识别文件或以正确的格式提供服务。
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