RAmazonS3 connection authentication issue - HTTP/1.1 403 Forbidden - r

Question

I'm trying to use the listBuckets function from the RAmazonS3 package but getting HTTP/1.1 403 Forbidden.
First I'm setting the authentication options as described in the manual:
options(AmazonS3 = c('login' = 'secret'))
I replaced login with my access key ID (20 characters), and secret with my secret access key (40 characters). When I run listBuckets(), I get the following error:
Error in UseMethod("xmlSApply") :
no applicable method for 'xmlSApply' applied to an object of class "NULL"
It's not returning any data, so it must not be connecting properly. Digging into it, there is a getURL call within listBuckets. The output of that line is:
* About to connect() to proxy proxyname.domain.com port xx (#0)
* Trying xxx.xxx.xxx.xxx... * connected
* Connected to proxyname.domain.com (xxx.xxx.xxx.xxx) port xx (#0)
> GET http://s3.amazonaws.com HTTP/1.1
Host: s3.amazonaws.com
Accept: */*
Proxy-Connection: Keep-Alive
Date: Fri, 12 Sep 2014 09:02:41 EDT
Authorization: AWS [login]:[unknown 27-character code]=
< HTTP/1.1 403 Forbidden
< x-amz-request-id: [unknown 16-character code]
< x-amz-id-2: [unknown 64-character code]
< Content-Type: application/xml
< Transfer-Encoding: chunked
< Date: Fri, 12 Sep 2014 13:02:40 GMT
< Server: AmazonS3
< Cache-Control: proxy-revalidate
< Proxy-Connection: Keep-Alive
< Connection: Keep-Alive
<
* Connection #0 to host proxyname.domain.com left intact
Any ideas where I'm going wrong?
I'm not sure what value to use for login, so I've also tried my AWS account name, my AWS account user name, and literally 'login', but get a similar error.
Before finding the RAmazonS3 package, I was starting to write my own S3api functions using the AWS Command Line Interface. I was able to successfully list the buckets and their objects when calling the AWS CLI from R.
sessionInfo()
R version 3.1.1 (2014-07-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United States.1252 LC_MONETARY=English_United States.1252 LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] RCurl_1.95-4.3 bitops_1.0-6 RAmazonS3_0.1-5
loaded via a namespace (and not attached):
[1] digest_0.6.4 tools_3.1.1 XML_3.98-1.1

Answer 1

Just to repeat what's in the comment above; i have noticed that most of the R-packages that connected to AWS service were out of date. So i have created a new package AWSConnect that allows a user to do most basic operations with S3 and EC2. In that package, the function s3.ls() is designed to list the bucket on S3.
Please feel free to use it, and report any bugs/request/issues

Answer 2

The package works in most cases:
login = AWS secret key
secret = AWS secret access key
Example:
markus_test is a new created bucket with no public permission
auth <- c("AKIAJN6VFFXXXXXXXXXX" ="d95ij4uy0i6n+auvhwLLP6VQiz27OdXXXXXXXXXX")
listBucket("markus_test", auth)`
Key LastModified ETag Size
1 rmr2_example.R 2014-09-15 23:38:48 c7f4544cf972bed52fa84164cf2505bf 1248
Owner.ID Owner.DisplayName
1 2a22982b6e7216f42abd2e8848f07a8ada0b1c11318dc8331aee068f29b7765d markusataws
StorageClass
1 STANDARD
> sessionInfo()
R version 3.1.1 (2014-07-10)
Platform: x86_64-apple-darwin10.8.0 (64-bit)
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] RAmazonS3_0.1-5
loaded via a namespace (and not attached):
[1] digest_0.6.4 RCurl_1.95-4.3 tools_3.1.1 XML_3.98-1