// Get an s3.Object with a ReadCloser for the body.
func (self *Bucket) GetKey(id cryptools.NamedSigner, key string) (obj *Object, err os.Error) {
hreq, err := NewQueryRequest(id, self.Endpoint, "GET", self.Name, key, "", "", nil, nil)
if err != nil {
return
}
cc, err := self.Endpoint.NewHTTPClientConn("tcp", "", nil)
if err != nil {
return
}
defer cc.Close()
resp, err := awsconn.SendRequest(cc, hreq)
if err != nil {
return
}
switch resp.StatusCode {
case 403:
err = ErrorAccessDenied
case 404:
err = ErrorKeyNotFound
case 200:
obj = &Object{Key: key, Body: resp.Body}
default:
err = os.NewError("Unhandled response code: " + resp.Status)
}
return
}
// Returns true if a key exists in the bucket.
// Note(1): This is not a "cheap" operation. Cheaper than get-object, yes,
// but it still does a full remote operation to test.
// Note(2): Due to amazons eventual consistancy, you should not rely solely
// on the result of this function as deterministic that a key has not been
// set. It is quite possible that a key will be set and an immediate check
// of the same will fail, so retry logic should be built into the caller
// (stack)
func (self *Bucket) Exists(id cryptools.NamedSigner, key string) (exists bool, err os.Error) {
hreq, err := NewQueryRequest(id, self.Endpoint, "HEAD", self.Name, key, "", "", nil, nil)
if err != nil {
return
}
cc, err := self.Endpoint.NewHTTPClientConn("tcp", "", nil)
if err != nil {
return
}
defer cc.Close()
resp, err := awsconn.SendRequest(cc, hreq)
if err != nil {
return
}
switch resp.StatusCode {
case 404:
exists = false
case 200:
exists = true
default:
err = os.NewError("Unexpected response: " + resp.Status)
}
return
}
