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e5c5646963
Bumps [github.com/aws/aws-sdk-go-v2/service/sts](https://github.com/aws/aws-sdk-go-v2) from 1.16.13 to 1.16.17. - [Release notes](https://github.com/aws/aws-sdk-go-v2/releases) - [Changelog](https://github.com/aws/aws-sdk-go-v2/blob/main/CHANGELOG.md) - [Commits](https://github.com/aws/aws-sdk-go-v2/compare/v1.16.13...service/ram/v1.16.17) --- updated-dependencies: - dependency-name: github.com/aws/aws-sdk-go-v2/service/sts dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>
105 lines
3.5 KiB
Go
105 lines
3.5 KiB
Go
package bearer
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import (
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"context"
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"fmt"
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"github.com/aws/smithy-go/middleware"
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smithyhttp "github.com/aws/smithy-go/transport/http"
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)
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// Message is the middleware stack's request transport message value.
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type Message interface{}
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// Signer provides an interface for implementations to decorate a request
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// message with a bearer token. The signer is responsible for validating the
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// message type is compatible with the signer.
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type Signer interface {
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SignWithBearerToken(context.Context, Token, Message) (Message, error)
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}
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// AuthenticationMiddleware provides the Finalize middleware step for signing
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// an request message with a bearer token.
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type AuthenticationMiddleware struct {
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signer Signer
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tokenProvider TokenProvider
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}
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// AddAuthenticationMiddleware helper adds the AuthenticationMiddleware to the
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// middleware Stack in the Finalize step with the options provided.
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func AddAuthenticationMiddleware(s *middleware.Stack, signer Signer, tokenProvider TokenProvider) error {
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return s.Finalize.Add(
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NewAuthenticationMiddleware(signer, tokenProvider),
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middleware.After,
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)
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}
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// NewAuthenticationMiddleware returns an initialized AuthenticationMiddleware.
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func NewAuthenticationMiddleware(signer Signer, tokenProvider TokenProvider) *AuthenticationMiddleware {
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return &AuthenticationMiddleware{
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signer: signer,
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tokenProvider: tokenProvider,
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}
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}
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const authenticationMiddlewareID = "BearerTokenAuthentication"
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// ID returns the resolver identifier
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func (m *AuthenticationMiddleware) ID() string {
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return authenticationMiddlewareID
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}
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// HandleFinalize implements the FinalizeMiddleware interface in order to
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// update the request with bearer token authentication.
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func (m *AuthenticationMiddleware) HandleFinalize(
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ctx context.Context, in middleware.FinalizeInput, next middleware.FinalizeHandler,
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) (
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out middleware.FinalizeOutput, metadata middleware.Metadata, err error,
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) {
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token, err := m.tokenProvider.RetrieveBearerToken(ctx)
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if err != nil {
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return out, metadata, fmt.Errorf("failed AuthenticationMiddleware wrap message, %w", err)
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}
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signedMessage, err := m.signer.SignWithBearerToken(ctx, token, in.Request)
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if err != nil {
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return out, metadata, fmt.Errorf("failed AuthenticationMiddleware sign message, %w", err)
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}
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in.Request = signedMessage
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return next.HandleFinalize(ctx, in)
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}
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// SignHTTPSMessage provides a bearer token authentication implementation that
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// will sign the message with the provided bearer token.
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//
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// Will fail if the message is not a smithy-go HTTP request or the request is
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// not HTTPS.
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type SignHTTPSMessage struct{}
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// NewSignHTTPSMessage returns an initialized signer for HTTP messages.
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func NewSignHTTPSMessage() *SignHTTPSMessage {
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return &SignHTTPSMessage{}
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}
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// SignWithBearerToken returns a copy of the HTTP request with the bearer token
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// added via the "Authorization" header, per RFC 6750, https://datatracker.ietf.org/doc/html/rfc6750.
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//
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// Returns an error if the request's URL scheme is not HTTPS, or the request
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// message is not an smithy-go HTTP Request pointer type.
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func (SignHTTPSMessage) SignWithBearerToken(ctx context.Context, token Token, message Message) (Message, error) {
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req, ok := message.(*smithyhttp.Request)
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if !ok {
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return nil, fmt.Errorf("expect smithy-go HTTP Request, got %T", message)
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}
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if !req.IsHTTPS() {
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return nil, fmt.Errorf("bearer token with HTTP request requires HTTPS")
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}
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reqClone := req.Clone()
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reqClone.Header.Set("Authorization", "Bearer "+token.Value)
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return reqClone, nil
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}
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