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flow_resource_owner.go
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/
flow_resource_owner.go
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package oauth2
import (
"net/http"
"fmt"
"github.com/ory-am/fosite"
"github.com/pkg/errors"
"golang.org/x/net/context"
)
type ResourceOwnerPasswordCredentialsGrantHandler struct {
// ResourceOwnerPasswordCredentialsGrantStorage is used to persist session data across requests.
ResourceOwnerPasswordCredentialsGrantStorage ResourceOwnerPasswordCredentialsGrantStorage
RefreshTokenStrategy RefreshTokenStrategy
ScopeStrategy fosite.ScopeStrategy
*HandleHelper
}
// HandleTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-4.3.2
func (c *ResourceOwnerPasswordCredentialsGrantHandler) HandleTokenEndpointRequest(ctx context.Context, req *http.Request, request fosite.AccessRequester) error {
// grant_type REQUIRED.
// Value MUST be set to "password".
if !request.GetGrantTypes().Exact("password") {
return errors.WithStack(fosite.ErrUnknownRequest)
}
if !request.GetClient().GetGrantTypes().Has("password") {
return errors.Wrap(fosite.ErrInvalidGrant, "The client is not allowed to use grant type password")
}
username := req.PostForm.Get("username")
password := req.PostForm.Get("password")
if username == "" || password == "" {
return errors.Wrap(fosite.ErrInvalidRequest, "Username or password missing")
} else if err := c.ResourceOwnerPasswordCredentialsGrantStorage.Authenticate(ctx, username, password); errors.Cause(err) == fosite.ErrNotFound {
return errors.Wrap(fosite.ErrInvalidRequest, err.Error())
} else if err != nil {
return errors.Wrap(fosite.ErrServerError, err.Error())
}
client := request.GetClient()
for _, scope := range request.GetRequestedScopes() {
if !c.ScopeStrategy(client.GetScopes(), scope) {
return errors.Wrap(fosite.ErrInvalidScope, fmt.Sprintf("The client is not allowed to request scope %s", scope))
}
}
// Credentials must not be passed around, potentially leaking to the database!
delete(request.GetRequestForm(), "password")
return nil
}
// PopulateTokenEndpointResponse implements https://tools.ietf.org/html/rfc6749#section-4.3.3
func (c *ResourceOwnerPasswordCredentialsGrantHandler) PopulateTokenEndpointResponse(ctx context.Context, req *http.Request, requester fosite.AccessRequester, responder fosite.AccessResponder) error {
if !requester.GetGrantTypes().Exact("password") {
return errors.WithStack(fosite.ErrUnknownRequest)
}
var refresh, refreshSignature string
if requester.GetGrantedScopes().Has("offline") {
var err error
refresh, refreshSignature, err = c.RefreshTokenStrategy.GenerateRefreshToken(ctx, requester)
if err != nil {
return errors.Wrap(fosite.ErrServerError, err.Error())
} else if err := c.ResourceOwnerPasswordCredentialsGrantStorage.CreateRefreshTokenSession(ctx, refreshSignature, requester); err != nil {
return errors.Wrap(fosite.ErrServerError, err.Error())
}
}
if err := c.IssueAccessToken(ctx, req, requester, responder); err != nil {
return err
}
if refresh != "" {
responder.SetExtra("refresh_token", refresh)
}
return nil
}