mirror of
https://github.com/oauth2-proxy/oauth2-proxy.git
synced 2024-12-12 11:15:02 +02:00
d228d5a928
* Refactor the utils package to other areas Move cookieSession functions to cookie session store & align the double implementation of SecretBytes to be united and housed under encryption * Remove unused Provider SessionFromCookie/CookieForSession These implementations aren't used, these are handled in the cookie store. * Add changelog entry for session/utils refactor
175 lines
4.8 KiB
Go
175 lines
4.8 KiB
Go
package providers
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import (
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"bytes"
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"io/ioutil"
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"net/http"
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"net/url"
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"time"
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"github.com/coreos/go-oidc"
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"github.com/oauth2-proxy/oauth2-proxy/pkg/apis/sessions"
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)
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var _ Provider = (*ProviderData)(nil)
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// Redeem provides a default implementation of the OAuth2 token redemption process
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func (p *ProviderData) Redeem(ctx context.Context, redirectURL, code string) (s *sessions.SessionState, err error) {
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if code == "" {
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err = errors.New("missing code")
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return
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}
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clientSecret, err := p.GetClientSecret()
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if err != nil {
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return
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}
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params := url.Values{}
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params.Add("redirect_uri", redirectURL)
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params.Add("client_id", p.ClientID)
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params.Add("client_secret", clientSecret)
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params.Add("code", code)
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params.Add("grant_type", "authorization_code")
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if p.ProtectedResource != nil && p.ProtectedResource.String() != "" {
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params.Add("resource", p.ProtectedResource.String())
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}
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var req *http.Request
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req, err = http.NewRequestWithContext(ctx, "POST", p.RedeemURL.String(), bytes.NewBufferString(params.Encode()))
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if err != nil {
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return
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}
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req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
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var resp *http.Response
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resp, err = http.DefaultClient.Do(req)
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if err != nil {
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return nil, err
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}
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var body []byte
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body, err = ioutil.ReadAll(resp.Body)
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resp.Body.Close()
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if err != nil {
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return
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}
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if resp.StatusCode != 200 {
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err = fmt.Errorf("got %d from %q %s", resp.StatusCode, p.RedeemURL.String(), body)
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return
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}
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// blindly try json and x-www-form-urlencoded
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var jsonResponse struct {
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AccessToken string `json:"access_token"`
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}
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err = json.Unmarshal(body, &jsonResponse)
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if err == nil {
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s = &sessions.SessionState{
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AccessToken: jsonResponse.AccessToken,
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}
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return
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}
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var v url.Values
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v, err = url.ParseQuery(string(body))
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if err != nil {
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return
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}
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if a := v.Get("access_token"); a != "" {
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s = &sessions.SessionState{AccessToken: a, CreatedAt: time.Now()}
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} else {
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err = fmt.Errorf("no access token found %s", body)
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}
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return
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}
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// GetLoginURL with typical oauth parameters
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func (p *ProviderData) GetLoginURL(redirectURI, state string) string {
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a := *p.LoginURL
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params, _ := url.ParseQuery(a.RawQuery)
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params.Set("redirect_uri", redirectURI)
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params.Add("acr_values", p.AcrValues)
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if p.Prompt != "" {
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params.Set("prompt", p.Prompt)
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} else { // Legacy variant of the prompt param:
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params.Set("approval_prompt", p.ApprovalPrompt)
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}
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params.Add("scope", p.Scope)
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params.Set("client_id", p.ClientID)
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params.Set("response_type", "code")
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params.Add("state", state)
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a.RawQuery = params.Encode()
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return a.String()
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}
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// GetEmailAddress returns the Account email address
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func (p *ProviderData) GetEmailAddress(ctx context.Context, s *sessions.SessionState) (string, error) {
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return "", errors.New("not implemented")
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}
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// GetUserName returns the Account username
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func (p *ProviderData) GetUserName(ctx context.Context, s *sessions.SessionState) (string, error) {
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return "", errors.New("not implemented")
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}
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// GetPreferredUsername returns the Account preferred username
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func (p *ProviderData) GetPreferredUsername(ctx context.Context, s *sessions.SessionState) (string, error) {
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return "", errors.New("not implemented")
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}
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// ValidateGroup validates that the provided email exists in the configured provider
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// email group(s).
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func (p *ProviderData) ValidateGroup(email string) bool {
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return true
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}
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// ValidateSessionState validates the AccessToken
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func (p *ProviderData) ValidateSessionState(ctx context.Context, s *sessions.SessionState) bool {
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return validateToken(ctx, p, s.AccessToken, nil)
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}
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// RefreshSessionIfNeeded should refresh the user's session if required and
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// do nothing if a refresh is not required
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func (p *ProviderData) RefreshSessionIfNeeded(ctx context.Context, s *sessions.SessionState) (bool, error) {
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return false, nil
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}
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func (p *ProviderData) CreateSessionStateFromBearerToken(ctx context.Context, rawIDToken string, idToken *oidc.IDToken) (*sessions.SessionState, error) {
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var claims struct {
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Subject string `json:"sub"`
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Email string `json:"email"`
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Verified *bool `json:"email_verified"`
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PreferredUsername string `json:"preferred_username"`
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}
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if err := idToken.Claims(&claims); err != nil {
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return nil, fmt.Errorf("failed to parse bearer token claims: %v", err)
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}
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if claims.Email == "" {
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claims.Email = claims.Subject
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}
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if claims.Verified != nil && !*claims.Verified {
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return nil, fmt.Errorf("email in id_token (%s) isn't verified", claims.Email)
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}
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newSession := &sessions.SessionState{
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Email: claims.Email,
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User: claims.Email,
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PreferredUsername: claims.PreferredUsername,
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}
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newSession.AccessToken = rawIDToken
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newSession.IDToken = rawIDToken
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newSession.RefreshToken = ""
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newSession.ExpiresOn = idToken.Expiry
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return newSession, nil
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}
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