mirror of https://github.com/ceph/go-ceph
115 lines
2.5 KiB
Go
115 lines
2.5 KiB
Go
package admin
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import (
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"bytes"
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"context"
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"io/ioutil"
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"net/http"
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"net/url"
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"time"
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"errors"
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"github.com/aws/aws-sdk-go/aws/credentials"
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v4 "github.com/aws/aws-sdk-go/aws/signer/v4"
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)
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const (
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authRegion = "default"
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service = "s3"
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connectionTimeout = time.Second * 3
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)
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var (
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errNoEndpoint = errors.New("endpoint not set")
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errNoAccessKey = errors.New("access key not set")
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errNoSecretKey = errors.New("secret key not set")
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)
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// HTTPClient interface that conforms to that of the http package's Client.
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type HTTPClient interface {
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Do(req *http.Request) (*http.Response, error)
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}
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// API struct for New Client
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type API struct {
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AccessKey string
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SecretKey string
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Endpoint string
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HTTPClient HTTPClient
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}
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// New returns client for Ceph RGW
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func New(endpoint, accessKey, secretKey string, httpClient HTTPClient) (*API, error) {
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// validate endpoint
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if endpoint == "" {
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return nil, errNoEndpoint
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}
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// validate access key
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if accessKey == "" {
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return nil, errNoAccessKey
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}
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// validate secret key
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if secretKey == "" {
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return nil, errNoSecretKey
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}
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// If no client is passed initialize it
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if httpClient == nil {
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httpClient = &http.Client{Timeout: connectionTimeout}
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}
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return &API{
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Endpoint: endpoint,
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AccessKey: accessKey,
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SecretKey: secretKey,
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HTTPClient: httpClient,
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}, nil
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}
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// call makes request to the RGW Admin Ops API
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func (api *API) call(ctx context.Context, httpMethod, path string, args url.Values) (body []byte, err error) {
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// Build request
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request, err := http.NewRequestWithContext(ctx, httpMethod, buildQueryPath(api.Endpoint, path, args.Encode()), nil)
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if err != nil {
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return nil, err
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}
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// Build S3 authentication
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cred := credentials.NewStaticCredentials(api.AccessKey, api.SecretKey, "")
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signer := v4.NewSigner(cred)
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// This was present in https://github.com/IrekFasikhov/go-rgwadmin/ but it seems that the lib works without it
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// Let's keep it here just in case something shows up
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// signer.DisableRequestBodyOverwrite = true
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// Sign in S3
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_, err = signer.Sign(request, nil, service, authRegion, time.Now())
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if err != nil {
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return nil, err
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}
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// Send HTTP request
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resp, err := api.HTTPClient.Do(request)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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// Decode HTTP response
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decodedResponse, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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resp.Body = ioutil.NopCloser(bytes.NewBuffer(decodedResponse))
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// Handle error in response
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if resp.StatusCode >= 300 {
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return nil, handleStatusError(decodedResponse)
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}
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return decodedResponse, nil
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}
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