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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| // Copyright 2022 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package gcloud | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/json" | ||
| "fmt" | ||
| "runtime" | ||
| "time" | ||
|
|
||
| "golang.org/x/oauth2" | ||
| exec "golang.org/x/sys/execabs" | ||
| ) | ||
|
|
||
| // config represents the credentials returned by `gcloud config config-helper`. | ||
| type config struct { | ||
| Credential struct { | ||
| AccessToken string `json:"access_token"` | ||
| TokenExpiry time.Time `json:"token_expiry"` | ||
| } | ||
| } | ||
|
|
||
| func (c *config) Token() *oauth2.Token { | ||
| return &oauth2.Token{ | ||
| AccessToken: c.Credential.AccessToken, | ||
| Expiry: c.Credential.TokenExpiry, | ||
| } | ||
| } | ||
|
|
||
| // Path returns the absolute path to the gcloud command. If the command is not | ||
| // found it returns an error. | ||
| func Path() (string, error) { | ||
| g := "gcloud" | ||
| if runtime.GOOS == "windows" { | ||
| g = g + ".cmd" | ||
| } | ||
| return exec.LookPath(g) | ||
| } | ||
|
|
||
| // configHelper implements oauth2.TokenSource via the `gcloud config config-helper` command. | ||
| type configHelper struct{} | ||
|
|
||
| // Token helps gcloudTokenSource implement oauth2.TokenSource. | ||
| func (configHelper) Token() (*oauth2.Token, error) { | ||
| gcloudCmd, err := Path() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| buf, errbuf := new(bytes.Buffer), new(bytes.Buffer) | ||
| cmd := exec.Command(gcloudCmd, "--format", "json", "config", "config-helper", "--min-expiry", "1h") | ||
| cmd.Stdout = buf | ||
| cmd.Stderr = errbuf | ||
|
|
||
| if err := cmd.Run(); err != nil { | ||
| err = fmt.Errorf("error reading config: %v; stderr was:\n%v", err, errbuf) | ||
| return nil, err | ||
| } | ||
|
|
||
| c := &config{} | ||
| if err := json.Unmarshal(buf.Bytes(), c); err != nil { | ||
| return nil, err | ||
| } | ||
| return c.Token(), nil | ||
| } | ||
|
|
||
| // TokenSource returns an oauth2.TokenSource backed by the gcloud CLI. | ||
| func TokenSource() (oauth2.TokenSource, error) { | ||
| h := configHelper{} | ||
| tok, err := h.Token() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return oauth2.ReuseTokenSource(tok, h), nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| // Copyright 2022 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package gcloud_test | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
||
| "github.com/GoogleCloudPlatform/alloydb-auth-proxy/internal/gcloud" | ||
| ) | ||
|
|
||
| func TestGcloud(t *testing.T) { | ||
| if testing.Short() { | ||
| t.Skip("skipping gcloud integration tests") | ||
| } | ||
|
|
||
| // gcloud is now configured. Try to obtain a token from gcloud config | ||
| // helper. | ||
| ts, err := gcloud.TokenSource() | ||
| if err != nil { | ||
| t.Fatalf("failed to get token source: %v", err) | ||
| } | ||
|
|
||
| _, err = ts.Token() | ||
| if err != nil { | ||
| t.Fatalf("failed to get token: %v", err) | ||
| } | ||
| } |
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