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feat: support GitLab OIDC Provider (#519)
Closes #518 Co-authored-by: hackerman <3372410+aeneasr@users.noreply.github.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package oidc | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "net/http" | ||
| "net/url" | ||
| "path" | ||
|
|
||
| "github.com/ory/herodot" | ||
| "github.com/pkg/errors" | ||
| "golang.org/x/oauth2" | ||
| ) | ||
|
|
||
| const ( | ||
| defaultEndpoint = "https://gitlab.com" | ||
| ) | ||
|
|
||
| type ProviderGitLab struct { | ||
| *ProviderGenericOIDC | ||
| } | ||
|
|
||
| func NewProviderGitLab( | ||
| config *Configuration, | ||
| public *url.URL, | ||
| ) *ProviderGitLab { | ||
| return &ProviderGitLab{ | ||
| ProviderGenericOIDC: &ProviderGenericOIDC{ | ||
| config: config, | ||
| public: public, | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| func (g *ProviderGitLab) Claims(ctx context.Context, exchange *oauth2.Token) (*Claims, error) { | ||
| o, err := g.OAuth2(ctx) | ||
| if err != nil { | ||
| return nil, errors.WithStack(herodot.ErrInternalServerError.WithReasonf("%s", err)) | ||
| } | ||
|
|
||
| client := o.Client(ctx, exchange) | ||
|
|
||
| u, err := g.endpoint() | ||
| if err != nil { | ||
| return nil, errors.WithStack(herodot.ErrInternalServerError.WithReasonf("%s", err)) | ||
| } | ||
| u.Path = path.Join(u.Path, "/oauth/userinfo") | ||
| req, err := http.NewRequest("GET", u.String(), nil) | ||
| if err != nil { | ||
| return nil, errors.WithStack(herodot.ErrInternalServerError.WithReasonf("%s", err)) | ||
| } | ||
|
|
||
| resp, err := client.Do(req) | ||
| if err != nil { | ||
| return nil, errors.WithStack(herodot.ErrInternalServerError.WithReasonf("%s", err)) | ||
| } | ||
| defer resp.Body.Close() | ||
|
|
||
| var claims Claims | ||
| if err := json.NewDecoder(resp.Body).Decode(&claims); err != nil { | ||
| return nil, errors.WithStack(herodot.ErrInternalServerError.WithReasonf("%s", err)) | ||
| } | ||
|
|
||
| return &claims, nil | ||
| } | ||
|
|
||
| func (g *ProviderGitLab) endpoint() (*url.URL, error) { | ||
| var e = defaultEndpoint | ||
| if len(g.config.IssuerURL) > 0 { | ||
| e = g.config.IssuerURL | ||
| } | ||
| return url.Parse(e) | ||
| } |