81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
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package indieauth
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import (
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"net/http"
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"net/url"
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ia "github.com/owncast/owncast/auth/indieauth"
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"github.com/owncast/owncast/controllers"
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)
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// HandleAuthEndpoint will handle the IndieAuth auth endpoint.
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func HandleAuthEndpoint(w http.ResponseWriter, r *http.Request) {
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if r.Method == http.MethodGet {
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// Require the GET request for IndieAuth to be behind admin login.
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handleAuthEndpointGet(w, r)
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} else if r.Method == http.MethodPost {
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handleAuthEndpointPost(w, r)
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} else {
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w.WriteHeader(http.StatusMethodNotAllowed)
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return
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}
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}
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func handleAuthEndpointGet(w http.ResponseWriter, r *http.Request) {
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clientID := r.URL.Query().Get("client_id")
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redirectURI := r.URL.Query().Get("redirect_uri")
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codeChallenge := r.URL.Query().Get("code_challenge")
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state := r.URL.Query().Get("state")
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me := r.URL.Query().Get("me")
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request, err := ia.StartServerAuth(clientID, redirectURI, codeChallenge, state, me)
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if err != nil {
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// Return a human readable, HTML page as an error. JSON is no use here.
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return
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}
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// Redirect the client browser with the values we generated to continue
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// the IndieAuth flow.
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// If the URL is invalid then return with specific "invalid_request" error.
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u, err := url.Parse(redirectURI)
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if err != nil {
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controllers.WriteResponse(w, ia.Response{
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Error: "invalid_request",
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ErrorDescription: err.Error(),
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})
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return
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}
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redirectParams := u.Query()
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redirectParams.Set("code", request.Code)
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redirectParams.Set("state", request.State)
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u.RawQuery = redirectParams.Encode()
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http.Redirect(w, r, u.String(), http.StatusTemporaryRedirect)
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}
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func handleAuthEndpointPost(w http.ResponseWriter, r *http.Request) {
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if err := r.ParseForm(); err != nil {
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controllers.WriteSimpleResponse(w, false, err.Error())
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return
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}
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code := r.PostForm.Get("code")
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redirectURI := r.PostForm.Get("redirect_uri")
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clientID := r.PostForm.Get("client_id")
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codeVerifier := r.PostForm.Get("code_verifier")
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// If the server auth flow cannot be completed then return with specific
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// "invalid_client" error.
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response, err := ia.CompleteServerAuth(code, redirectURI, clientID, codeVerifier)
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if err != nil {
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controllers.WriteResponse(w, ia.Response{
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Error: "invalid_client",
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ErrorDescription: err.Error(),
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})
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return
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}
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controllers.WriteResponse(w, response)
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}
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