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Signed-off-by: Ernst Riemer <eriemer@vmware.com> Signed-off-by: Luke Winikates <winikatesl@vmware.com>
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@@ -1,3 +1,4 @@ | ||
.idea | ||
vendor/ | ||
.DS_Store | ||
.DS_Store | ||
.envrc |
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package csp | ||
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import ( | ||
"encoding/json" | ||
"fmt" | ||
"io" | ||
"net/http" | ||
"net/url" | ||
"strings" | ||
) | ||
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type APITokenClient struct { | ||
BaseURL string | ||
APIToken string | ||
} | ||
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func (c *APITokenClient) GetAccessToken() (*AuthorizeResponse, error) { | ||
var oauthPath = "/csp/gateway/am/api/auth/api-tokens/authorize" | ||
client := &http.Client{} | ||
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requestBody := url.Values{"grant_type": {"api_token"}, "refresh_token": {c.APIToken}}.Encode() | ||
req, err := http.NewRequest("POST", c.BaseURL+oauthPath, strings.NewReader(requestBody)) | ||
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if err != nil { | ||
return nil, err | ||
} | ||
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req.Header.Add("Content-Type", "application/x-www-form-urlencoded") | ||
req.Header.Add("Accept", "application/json") | ||
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resp, err := client.Do(req) | ||
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if err != nil { | ||
return nil, err | ||
} | ||
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defer resp.Body.Close() | ||
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if resp.StatusCode > 399 { | ||
return nil, fmt.Errorf("authentication failed: %d", resp.StatusCode) | ||
} | ||
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body, err := io.ReadAll(resp.Body) | ||
var cspResponse AuthorizeResponse | ||
err = json.Unmarshal(body, &cspResponse) | ||
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if err != nil { | ||
return nil, err | ||
} | ||
return &cspResponse, nil | ||
} |
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package csp | ||
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import ( | ||
"encoding/base64" | ||
"encoding/json" | ||
"fmt" | ||
"io" | ||
"net/http" | ||
"net/url" | ||
"strings" | ||
) | ||
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type ClientCredentialsClient struct { | ||
BaseURL string | ||
ClientID string | ||
ClientSecret string | ||
} | ||
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func (c *ClientCredentialsClient) authHeaderValue() string { | ||
return "Basic " + base64.StdEncoding.EncodeToString([]byte(c.ClientID+":"+c.ClientSecret)) | ||
} | ||
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func (c *ClientCredentialsClient) GetAccessToken() (*AuthorizeResponse, error) { | ||
var oauthPath = "/csp/gateway/am/api/auth/authorize" | ||
client := &http.Client{} | ||
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requestBody := url.Values{"grant_type": {"client_credentials"}}.Encode() | ||
req, err := http.NewRequest("POST", c.BaseURL+oauthPath, strings.NewReader(requestBody)) | ||
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if err != nil { | ||
return nil, err | ||
} | ||
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req.Header.Add("Authorization", c.authHeaderValue()) | ||
req.Header.Add("Content-Type", "application/x-www-form-urlencoded") | ||
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resp, err := client.Do(req) | ||
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if err != nil { | ||
return nil, err | ||
} | ||
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defer resp.Body.Close() | ||
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if resp.StatusCode > 399 { | ||
return nil, fmt.Errorf("authentication failed: %d", resp.StatusCode) | ||
} | ||
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body, err := io.ReadAll(resp.Body) | ||
var cspResponse AuthorizeResponse | ||
err = json.Unmarshal(body, &cspResponse) | ||
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if err != nil { | ||
return nil, err | ||
} | ||
return &cspResponse, nil | ||
} |
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package csp | ||
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import ( | ||
"encoding/base64" | ||
"encoding/json" | ||
"net/http" | ||
"strings" | ||
) | ||
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func FakeCSPHandler(apiTokens []string) http.Handler { | ||
basicAuthCredentials := "Basic " + base64.StdEncoding.EncodeToString([]byte("a:b")) | ||
firstRun := true | ||
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mux := http.NewServeMux() | ||
mux.HandleFunc("/csp/gateway/am/api/auth/authorize", func(w http.ResponseWriter, r *http.Request) { | ||
if strings.HasSuffix(r.Header.Get("Authorization"), basicAuthCredentials) { | ||
var sup AuthorizeResponse | ||
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if firstRun { | ||
sup = AuthorizeResponse{ | ||
ExpiresIn: 1, | ||
AccessToken: "abc", | ||
Scope: "aoa:directDataIngestion", | ||
} | ||
firstRun = false | ||
} else { | ||
sup = AuthorizeResponse{ | ||
ExpiresIn: 1, | ||
AccessToken: "def", | ||
Scope: "aoa:directDataIngestion", | ||
} | ||
} | ||
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w.WriteHeader(http.StatusOK) | ||
marshal, _ := json.Marshal(sup) | ||
w.Write(marshal) | ||
return | ||
} | ||
w.WriteHeader(http.StatusUnauthorized) | ||
}) | ||
mux.HandleFunc("/csp/gateway/am/api/auth/api-tokens/authorize", func(w http.ResponseWriter, r *http.Request) { | ||
if err := r.ParseForm(); err != nil { | ||
w.WriteHeader(http.StatusNotAcceptable) | ||
return | ||
} | ||
if !(r.Form.Has("grant_type") && r.Form.Get("grant_type") == "api_token") { | ||
w.WriteHeader(http.StatusUnauthorized) | ||
return | ||
} | ||
if !(r.Form.Has("refresh_token")) { | ||
w.WriteHeader(http.StatusUnauthorized) | ||
return | ||
} | ||
var tokenMatch = false | ||
for _, token := range apiTokens { | ||
if r.Form.Get("refresh_token") == token { | ||
tokenMatch = true | ||
break | ||
} | ||
} | ||
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if !(tokenMatch) { | ||
w.WriteHeader(http.StatusUnauthorized) | ||
return | ||
} | ||
var sup AuthorizeResponse | ||
if firstRun { | ||
sup = AuthorizeResponse{ | ||
ExpiresIn: 1, | ||
AccessToken: "abc", | ||
Scope: "aoa:directDataIngestion", | ||
} | ||
firstRun = false | ||
} else { | ||
sup = AuthorizeResponse{ | ||
ExpiresIn: 1, | ||
AccessToken: "def", | ||
Scope: "aoa:directDataIngestion", | ||
} | ||
} | ||
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w.WriteHeader(http.StatusOK) | ||
marshal, _ := json.Marshal(sup) | ||
w.Write(marshal) | ||
return | ||
}) | ||
return mux | ||
} |
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package csp | ||
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import "strings" | ||
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func HasDirectIngestScope(scope string) bool { | ||
if len(scope) == 0 { | ||
return false | ||
} | ||
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for _, s := range strings.Split(scope, " ") { | ||
if strings.Contains(s, "aoa:directDataIngestion") || strings.Contains(s, "aoa/*") || strings.Contains(s, "aoa:*") { | ||
return true | ||
} | ||
} | ||
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return false | ||
} |
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package csp | ||
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import ( | ||
"github.com/stretchr/testify/assert" | ||
"testing" | ||
) | ||
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func TestDirectIngestScopes(t *testing.T) { | ||
assert.False(t, HasDirectIngestScope("")) | ||
assert.False(t, HasDirectIngestScope("no direct ingest scopes")) | ||
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var scopeString = "external/51d98d2c-3ae1-11ee-be56-0242ac120002/*/aoa:directDataIngestion external/51d98d2c-3ae1-11ee-be56-0242ac120002/aoa:directDataIngestion csp:org_member" | ||
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assert.True(t, HasDirectIngestScope(scopeString)) | ||
assert.True(t, HasDirectIngestScope("some aoa:*")) | ||
assert.True(t, HasDirectIngestScope("some aoa/*")) | ||
} |
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@@ -0,0 +1,14 @@ | ||
package csp | ||
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type Client interface { | ||
GetAccessToken() (*AuthorizeResponse, error) | ||
} | ||
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type AuthorizeResponse struct { | ||
IdToken string `json:"id_token"` | ||
TokenType string `json:"token_type"` | ||
ExpiresIn int `json:"expires_in"` | ||
Scope string `json:"scope"` | ||
AccessToken string `json:"access_token"` | ||
RefreshToken string `json:"refresh_token"` | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,129 @@ | ||
package auth | ||
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import ( | ||
"fmt" | ||
"github.com/wavefronthq/wavefront-sdk-go/internal/auth/csp" | ||
"log" | ||
"net/http" | ||
"sync" | ||
"time" | ||
) | ||
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type tokenResult struct { | ||
accessToken string | ||
err error | ||
} | ||
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type CSPService struct { | ||
client csp.Client | ||
mutex sync.Mutex | ||
tokenResult *tokenResult | ||
refreshTicker *time.Ticker | ||
done chan bool | ||
defaultRefreshInterval time.Duration | ||
} | ||
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// NewCSPServerToServerService returns a Service instance that gets access tokens via CSP client credentials | ||
func NewCSPServerToServerService(CSPBaseUrl string, ClientId string, ClientSecret string) Service { | ||
return newService(&csp.ClientCredentialsClient{ | ||
BaseURL: CSPBaseUrl, | ||
ClientID: ClientId, | ||
ClientSecret: ClientSecret, | ||
}) | ||
} | ||
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func NewCSPTokenService(CSPBaseUrl, apiToken string) Service { | ||
return newService(&csp.APITokenClient{ | ||
BaseURL: CSPBaseUrl, | ||
APIToken: apiToken, | ||
}) | ||
} | ||
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func newService(client csp.Client) Service { | ||
return &CSPService{ | ||
client: client, | ||
defaultRefreshInterval: 60 * time.Second, | ||
} | ||
} | ||
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func (s *CSPService) IsDirect() bool { | ||
return true | ||
} | ||
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func (s *CSPService) Authorize(r *http.Request) error { | ||
s.mutex.Lock() | ||
defer s.mutex.Unlock() | ||
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if s.tokenResult == nil { | ||
s.RefreshAccessToken() | ||
} | ||
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if s.tokenResult.err != nil { | ||
return &Err{ | ||
error: s.tokenResult.err, | ||
} | ||
} | ||
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r.Header.Set("Authorization", "Bearer "+s.tokenResult.accessToken) | ||
return nil | ||
} | ||
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func (s *CSPService) RefreshAccessToken() { | ||
cspResponse, err := s.client.GetAccessToken() | ||
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if err != nil { | ||
s.tokenResult = &tokenResult{ | ||
accessToken: "", | ||
err: err, | ||
} | ||
s.scheduleNextTokenRefresh(s.defaultRefreshInterval) | ||
return | ||
} | ||
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if !csp.HasDirectIngestScope(cspResponse.Scope) { | ||
s.tokenResult = &tokenResult{ | ||
accessToken: "", | ||
err: fmt.Errorf("response did not include required scope: 'aoa:directDataIngestion'"), | ||
} | ||
s.scheduleNextTokenRefresh(s.defaultRefreshInterval) | ||
return | ||
} | ||
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s.scheduleNextTokenRefresh(time.Duration(cspResponse.ExpiresIn) * time.Second) | ||
s.tokenResult = &tokenResult{ | ||
accessToken: cspResponse.AccessToken, | ||
err: nil, | ||
} | ||
} | ||
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func (s *CSPService) scheduleNextTokenRefresh(expiresIn time.Duration) { | ||
tickerInterval := calculateNewTickerInterval(expiresIn, s.defaultRefreshInterval) | ||
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if s.refreshTicker == nil { | ||
s.refreshTicker = time.NewTicker(tickerInterval) | ||
s.done = make(chan bool) | ||
go func() { | ||
for { | ||
select { | ||
case <-s.done: | ||
return | ||
case tick := <-s.refreshTicker.C: | ||
s.mutex.Lock() | ||
log.Printf("Re-fetching CSP credentials at: %v \n", tick) | ||
s.RefreshAccessToken() | ||
s.mutex.Unlock() | ||
} | ||
} | ||
}() | ||
} else { | ||
s.refreshTicker.Reset(tickerInterval) | ||
} | ||
} | ||
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func (s *CSPService) Close() { | ||
log.Println("Shutting down the CSPService") | ||
if s.refreshTicker == nil { | ||
return | ||
} | ||
s.done <- true | ||
} |
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