246 lines
7.6 KiB
Go
246 lines
7.6 KiB
Go
package server
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import (
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"encoding/json"
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"html/template"
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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/jose"
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"github.com/coreos/go-oidc/key"
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"github.com/coreos/go-oidc/oidc"
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"github.com/coreos/dex/client"
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"github.com/coreos/dex/pkg/log"
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"github.com/coreos/dex/user"
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useremail "github.com/coreos/dex/user/email"
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)
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// handleVerifyEmailResendFunc will resend an email-verification email given a valid JWT for the user and a redirect URL.
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// This handler is meant to be wrapped in clientTokenMiddleware, so a valid
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// bearer token for the client is expected to be present.
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// The user's JWT should be in the "token" parameter and the redirect URL should
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// be in the "redirect_uri" param.
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func handleVerifyEmailResendFunc(
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issuerURL url.URL,
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srvKeysFunc func() ([]key.PublicKey, error),
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emailer *useremail.UserEmailer,
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userRepo user.UserRepo,
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clientIdentityRepo client.ClientIdentityRepo) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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decoder := json.NewDecoder(r.Body)
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var params struct {
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Token string `json:"token"`
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RedirectURI string `json:"redirectURI"`
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}
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err := decoder.Decode(¶ms)
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if err != nil {
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writeAPIError(w, http.StatusBadRequest, newAPIError(errorInvalidRequest,
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"unable to parse body as JSON"))
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return
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}
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token := params.Token
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if token == "" {
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writeAPIError(w, http.StatusBadRequest,
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newAPIError(errorInvalidRequest, "missing valid JWT"))
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return
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}
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clientID, err := getClientIDFromAuthorizedRequest(r)
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if err != nil {
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log.Errorf("Failed to extract clientID: %v", err)
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writeAPIError(w, http.StatusUnauthorized,
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newAPIError(errorInvalidRequest, "cilent could not be extracted from bearer token."))
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return
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}
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cm, err := clientIdentityRepo.Metadata(clientID)
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if err == client.ErrorNotFound {
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log.Errorf("No such client: %v", err)
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writeAPIError(w, http.StatusBadRequest,
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newAPIError(errorInvalidRequest, "invalid client_id"))
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return
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}
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if err != nil {
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log.Errorf("Error getting ClientMetadata: %v", err)
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writeAPIError(w, http.StatusInternalServerError,
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newAPIError(errorServerError, "could not send email at this time"))
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return
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}
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noop := func() error { return nil }
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keysFunc := func() []key.PublicKey {
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keys, err := srvKeysFunc()
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if err != nil {
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log.Errorf("Error getting keys: %v", err)
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}
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return keys
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}
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jwt, err := jose.ParseJWT(token)
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if err != nil {
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log.Errorf("Failed to Parse JWT: %v", err)
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writeAPIError(w, http.StatusBadRequest,
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newAPIError(errorInvalidRequest, "token could not be parsed"))
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return
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}
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verifier := oidc.NewJWTVerifier(issuerURL.String(), clientID, noop, keysFunc)
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if err := verifier.Verify(jwt); err != nil {
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log.Errorf("Failed to Verify JWT: %v", err)
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writeAPIError(w, http.StatusUnauthorized,
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newAPIError(errorAccessDenied, "invalid token could not be verified"))
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return
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}
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claims, err := jwt.Claims()
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if err != nil {
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log.Errorf("Failed to extract claims from JWT: %v", err)
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writeAPIError(w, http.StatusBadRequest,
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newAPIError(errorInvalidRequest, "invalid token could not be parsed"))
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return
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}
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sub, ok, err := claims.StringClaim("sub")
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if err != nil || !ok || sub == "" {
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log.Errorf("Failed to extract sub claim from JWT: err:%q ok:%v", err, ok)
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writeAPIError(w, http.StatusBadRequest,
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newAPIError(errorInvalidRequest, "could not extract sub claim from token"))
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return
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}
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usr, err := userRepo.Get(nil, sub)
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if err != nil {
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if err == user.ErrorNotFound {
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log.Errorf("Failed to find user specified by token: %v", err)
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writeAPIError(w, http.StatusBadRequest,
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newAPIError(errorInvalidRequest, "could not find user"))
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return
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}
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log.Errorf("Failed to fetch user: %v", err)
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writeAPIError(w, http.StatusInternalServerError,
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newAPIError(errorServerError, "could not send email at this time"))
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return
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}
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if usr.EmailVerified {
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log.Errorf("User's email already verified")
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writeAPIError(w, http.StatusBadRequest,
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newAPIError(errorInvalidRequest, "email already verified"))
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return
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}
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aud, _, _ := claims.StringClaim("aud")
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if aud != clientID {
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log.Errorf("aud of token and sub of bearer token must match: %v", err)
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writeAPIError(w, http.StatusForbidden,
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newAPIError(errorAccessDenied, "JWT is from another client."))
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return
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}
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redirectURLStr := params.RedirectURI
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if redirectURLStr == "" {
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log.Errorf("No redirect URL: %v", err)
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writeAPIError(w, http.StatusBadRequest,
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newAPIError(errorInvalidRequest, "must provide a redirect_uri"))
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return
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}
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redirectURL, err := url.Parse(redirectURLStr)
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if err != nil {
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log.Errorf("Unparsable URL: %v", err)
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writeAPIError(w, http.StatusBadRequest,
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newAPIError(errorInvalidRequest, "invalid redirect_uri"))
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return
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}
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*redirectURL, err = client.ValidRedirectURL(redirectURL, cm.RedirectURLs)
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if err != nil {
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switch err {
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case (client.ErrorInvalidRedirectURL):
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log.Errorf("Request provided unregistered redirect URL: %s", redirectURLStr)
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writeAPIError(w, http.StatusBadRequest,
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newAPIError(errorInvalidRequest, "invalid redirect_uri"))
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return
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case (client.ErrorNoValidRedirectURLs):
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log.Errorf("There are no registered URLs for the requested client: %s", redirectURL)
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writeAPIError(w, http.StatusBadRequest,
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newAPIError(errorInvalidRequest, "invalid redirect_uri"))
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return
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}
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}
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_, err = emailer.SendEmailVerification(usr.ID, clientID, *redirectURL)
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if err != nil {
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log.Errorf("Failed to send email verification email: %v", err)
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writeAPIError(w, http.StatusInternalServerError,
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newAPIError(errorServerError, "could not send email at this time"))
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return
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}
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writeResponseWithBody(w, http.StatusOK, struct{}{})
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}
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}
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type emailVerifiedTemplateData struct {
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Error string
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Message string
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}
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func handleEmailVerifyFunc(verifiedTpl *template.Template, issuer url.URL, keysFunc func() ([]key.PublicKey,
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error), userManager *user.Manager) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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q := r.URL.Query()
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token := q.Get("token")
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keys, err := keysFunc()
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if err != nil {
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execTemplateWithStatus(w, verifiedTpl, emailVerifiedTemplateData{
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Error: "There's been an error processing your request.",
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Message: "Please try again later.",
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}, http.StatusInternalServerError)
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return
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}
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ev, err := user.ParseAndVerifyEmailVerificationToken(token, issuer, keys)
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if err != nil {
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execTemplateWithStatus(w, verifiedTpl, emailVerifiedTemplateData{
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Error: "Bad Email Verification Token",
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Message: "That was not a verifiable token.",
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}, http.StatusBadRequest)
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return
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}
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cbURL, err := userManager.VerifyEmail(ev)
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if err != nil {
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switch err {
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case user.ErrorEmailAlreadyVerified:
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execTemplateWithStatus(w, verifiedTpl, emailVerifiedTemplateData{
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Error: "Invalid Verification Link",
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Message: "Your email link has expired or has already been verified.",
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}, http.StatusBadRequest)
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case user.ErrorEVEmailDoesntMatch:
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execTemplateWithStatus(w, verifiedTpl, emailVerifiedTemplateData{
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Error: "Invalid Verification Link",
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Message: "Your email link does not match the email address on file. Perhaps you have a more recent verification link?",
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}, http.StatusBadRequest)
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default:
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execTemplateWithStatus(w, verifiedTpl, emailVerifiedTemplateData{
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Error: "Error Processing Request",
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Message: "Please try again later.",
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}, http.StatusInternalServerError)
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}
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return
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}
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http.SetCookie(w, &http.Cookie{
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HttpOnly: true,
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Name: "ShowEmailVerifiedMessage",
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MaxAge: int(60 * 5),
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Expires: time.Now().Add(time.Minute * 5),
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})
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http.Redirect(w, r, cbURL.String(), http.StatusSeeOther)
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}
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}
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