forked from TrueCloudLab/certificates
90 lines
2.3 KiB
Go
90 lines
2.3 KiB
Go
package api
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import (
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"context"
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"net/http"
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"github.com/pkg/errors"
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"github.com/smallstep/certificates/authority/provisioner"
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"github.com/smallstep/certificates/errs"
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)
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// SSHRenewRequest is the request body of an SSH certificate request.
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type SSHRenewRequest struct {
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OTT string `json:"ott"`
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}
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// Validate validates the SSHSignRequest.
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func (s *SSHRenewRequest) Validate() error {
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switch {
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case len(s.OTT) == 0:
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return errors.New("missing or empty ott")
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default:
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return nil
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}
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}
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// SSHRenewResponse is the response object that returns the SSH certificate.
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type SSHRenewResponse struct {
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Certificate SSHCertificate `json:"crt"`
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IdentityCertificate []Certificate `json:"identityCrt,omitempty"`
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}
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// SSHRenew is an HTTP handler that reads an RenewSSHRequest with a one-time-token
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// (ott) from the body and creates a new SSH certificate with the information in
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// the request.
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func (h *caHandler) SSHRenew(w http.ResponseWriter, r *http.Request) {
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var body SSHRenewRequest
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if err := ReadJSON(r.Body, &body); err != nil {
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WriteError(w, errs.BadRequest(errors.Wrap(err, "error reading request body")))
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return
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}
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logOtt(w, body.OTT)
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if err := body.Validate(); err != nil {
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WriteError(w, errs.BadRequest(err))
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return
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}
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ctx := provisioner.NewContextWithMethod(context.Background(), provisioner.RenewSSHMethod)
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_, err := h.Authority.Authorize(ctx, body.OTT)
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if err != nil {
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WriteError(w, errs.Unauthorized(err))
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return
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}
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oldCert, err := provisioner.ExtractSSHPOPCert(body.OTT)
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if err != nil {
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WriteError(w, errs.InternalServerError(err))
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}
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newCert, err := h.Authority.RenewSSH(oldCert)
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if err != nil {
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WriteError(w, errs.Forbidden(err))
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return
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}
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identity, err := h.renewIdentityCertificate(r)
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if err != nil {
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WriteError(w, errs.Forbidden(err))
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return
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}
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JSONStatus(w, &SSHSignResponse{
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Certificate: SSHCertificate{newCert},
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IdentityCertificate: identity,
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}, http.StatusCreated)
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}
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// renewIdentityCertificate request the client TLS certificate if present.
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func (h *caHandler) renewIdentityCertificate(r *http.Request) ([]Certificate, error) {
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if r.TLS == nil || len(r.TLS.PeerCertificates) == 0 {
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return nil, nil
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}
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certChain, err := h.Authority.Renew(r.TLS.PeerCertificates[0])
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if err != nil {
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return nil, err
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}
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return certChainToPEM(certChain), nil
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}
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