刚开始使用node.js aws客户端生成预签名网址并将其发送到浏览器以供用户上传文件,但我收到以下消息:
SignatureDoesNotMatch我们计算的请求签名没有 匹配您提供的签名。检查您的密钥和签名方法。
我引用了很多链接,它看起来很基本,但我似乎失败了
https://github.com/aws/aws-sdk-js/issues/251
Direct Browser Upload to S3 with Meteor, jQuery and the AWS SDK
https://forums.aws.amazon.com/thread.jspa?messageID=556839
要么,我完全是愚蠢的,要么sdk真的难以使用
节点:
var putParams = {
Bucket: config.aws.s3UploadBucket,
Key: filename,
ACL: 'public-read',
Expires: 120,
Body: '',
ContentMD5: 'false'
};
s3.getSignedUrl('putObject', putParams, function (err, url) {
if (!!err) {
console.error(err);
res.json({error: ''});
return;
}
res.json({
'awsAccessKeyId': config.aws.accessKeyId,
's3bucket': config.aws.s3UploadBucket,
's3key': filename,
's3policy': s3policy.policy,
's3signature': s3policy.signature,
'url': url
});
});
客户端:
var fd = new FormData();
fd.append('file', file);
return new RSVP.Promise(function(resolve, reject) {
$.ajax({
url: uploadObj.url,
data: fd,
processData: false,
contentType: false,
crossDomain: true,
type: 'PUT',
success: function(json, textStatus, jqXhr){
console.log(json);
resolve(json);
},
error: function(jqXhr, textStatus, errorThrown){
reject({ jqXhr: jqXhr, textStatus: textStatus, errorThrown: errorThrown});
}
});
});
更新:在回复一些评论时,我确实为该存储桶提供了有效的CORS。
<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<CORSRule>
<AllowedOrigin>*</AllowedOrigin>
<AllowedMethod>GET</AllowedMethod>
<AllowedMethod>PUT</AllowedMethod>
<AllowedMethod>POST</AllowedMethod>
<AllowedMethod>DELETE</AllowedMethod>
<MaxAgeSeconds>3000</MaxAgeSeconds>
<AllowedHeader>Content-*</AllowedHeader>
<AllowedHeader>Authorization</AllowedHeader>
<AllowedHeader>*</AllowedHeader>
</CORSRule>
</CORSConfiguration>
答案 0 :(得分:4)
我也一直在打这个。这对我有用,我得到了与你完全相同的错误。
在服务器端,我正在使用AWS-SDK作为nodejs
var params = { Bucket: "bucketname", Key: "filename", ContentType: "multipart/form-data" } var url = s3.getSignedUrl('putObject', params, function(err, url) { console.log(url); }
客户端
$.ajax({ method: "PUT", headers: {"Content-Type": "multipart/form-data"}, processData: false, url: "http://AWSURL?AWSAccessKeyId..." })
你的角色看起来对我来说,关键是要确保Content-Type的标题完全匹配
答案 1 :(得分:1)
非常感谢杰里米和kungfoo!我遇到了同样的问题,但使用Python的boto库时增加了皱纹。如果您从Python生成URL,则最小工作配置似乎是:
Boto3的作品是但不是Boto2 !
import boto3
conn = boto3.client('s3', ...)
url = conn.generate_presigned_url('put_object', {
'Bucket': my_bucket_name,
'Key': my_bucket_key,
'ContentType': 'my_content_type'
}, 300)
所需的最低规则似乎是:
<CORSRule>
<AllowedOrigin>*.mydomain.com</AllowedOrigin>
<AllowedMethod>PUT</AllowedMethod>
<MaxAgeSeconds>3000</MaxAgeSeconds>
<AllowedHeader>Content-*</AllowedHeader>
<AllowedHeader>Authorization</AllowedHeader>
</CORSRule>
使用jQuery,并确保保持与以前相同的内容类型:
$.ajax({
type: "PUT",
headers: {"Content-Type": "my_content_type"},
url: url_from_server,
data: my_data_as_string,
processData: false,
contentType: false,
crossDomain: true,
cache: false
});
答案 2 :(得分:0)
我遇到了同样的问题,但我不记得问题究竟是什么,但这个答案可能对你有所帮助upload-file-from-angularjs-directly-to-amazon-s3-using-signed-url。
服务器:
var AWS = require('aws-sdk');
AWS.config.update({accessKeyId: AWS_ACCESS_KEY, secretAccessKey: AWS_SECRET_KEY});
AWS.config.region = 'eu-west-1';
app.post('/s', function (req, res) {
var s3 = new AWS.S3();
var params = {Bucket: 'BUCKETNAME', Key: req.body.name, ContentType: req.body.type};
s3.getSignedUrl('putObject', params, function(err, url) {
if(err) console.log(err);
res.json({url: url});
});
});
客户端:
$.ajax({
url: '/s',
type: 'POST',
data: {name: file.name, size: file.size, type:file.type},
}).success(function(res){
$.ajax({
url: res.url,
type: 'PUT',
data: file,
processData: false,
contentType: file.type,
}).success(function(res){
console.log('Done');
});