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Remove padding on example client PKCE
Removes padding so the client example can be used against oauth servers that require padding to be removed.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,141 +1,141 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/sha256" | ||
| "encoding/base64" | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "net/http" | ||
| "time" | ||
|
|
||
| "golang.org/x/oauth2" | ||
| "golang.org/x/oauth2/clientcredentials" | ||
| ) | ||
|
|
||
| const ( | ||
| authServerURL = "http://localhost:9096" | ||
| ) | ||
|
|
||
| var ( | ||
| config = oauth2.Config{ | ||
| ClientID: "222222", | ||
| ClientSecret: "22222222", | ||
| Scopes: []string{"all"}, | ||
| RedirectURL: "http://localhost:9094/oauth2", | ||
| Endpoint: oauth2.Endpoint{ | ||
| AuthURL: authServerURL + "/oauth/authorize", | ||
| TokenURL: authServerURL + "/oauth/token", | ||
| }, | ||
| } | ||
| globalToken *oauth2.Token // Non-concurrent security | ||
| ) | ||
|
|
||
| func main() { | ||
| http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { | ||
| u := config.AuthCodeURL("xyz", | ||
| oauth2.SetAuthURLParam("code_challenge", genCodeChallengeS256("s256example")), | ||
| oauth2.SetAuthURLParam("code_challenge_method", "S256")) | ||
| http.Redirect(w, r, u, http.StatusFound) | ||
| }) | ||
|
|
||
| http.HandleFunc("/oauth2", func(w http.ResponseWriter, r *http.Request) { | ||
| r.ParseForm() | ||
| state := r.Form.Get("state") | ||
| if state != "xyz" { | ||
| http.Error(w, "State invalid", http.StatusBadRequest) | ||
| return | ||
| } | ||
| code := r.Form.Get("code") | ||
| if code == "" { | ||
| http.Error(w, "Code not found", http.StatusBadRequest) | ||
| return | ||
| } | ||
| token, err := config.Exchange(context.Background(), code, oauth2.SetAuthURLParam("code_verifier", "s256example")) | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
| globalToken = token | ||
|
|
||
| e := json.NewEncoder(w) | ||
| e.SetIndent("", " ") | ||
| e.Encode(token) | ||
| }) | ||
|
|
||
| http.HandleFunc("/refresh", func(w http.ResponseWriter, r *http.Request) { | ||
| if globalToken == nil { | ||
| http.Redirect(w, r, "/", http.StatusFound) | ||
| return | ||
| } | ||
|
|
||
| globalToken.Expiry = time.Now() | ||
| token, err := config.TokenSource(context.Background(), globalToken).Token() | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| globalToken = token | ||
| e := json.NewEncoder(w) | ||
| e.SetIndent("", " ") | ||
| e.Encode(token) | ||
| }) | ||
|
|
||
| http.HandleFunc("/try", func(w http.ResponseWriter, r *http.Request) { | ||
| if globalToken == nil { | ||
| http.Redirect(w, r, "/", http.StatusFound) | ||
| return | ||
| } | ||
|
|
||
| resp, err := http.Get(fmt.Sprintf("%s/test?access_token=%s", authServerURL, globalToken.AccessToken)) | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusBadRequest) | ||
| return | ||
| } | ||
| defer resp.Body.Close() | ||
|
|
||
| io.Copy(w, resp.Body) | ||
| }) | ||
|
|
||
| http.HandleFunc("/pwd", func(w http.ResponseWriter, r *http.Request) { | ||
| token, err := config.PasswordCredentialsToken(context.Background(), "test", "test") | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| globalToken = token | ||
| e := json.NewEncoder(w) | ||
| e.SetIndent("", " ") | ||
| e.Encode(token) | ||
| }) | ||
|
|
||
| http.HandleFunc("/client", func(w http.ResponseWriter, r *http.Request) { | ||
| cfg := clientcredentials.Config{ | ||
| ClientID: config.ClientID, | ||
| ClientSecret: config.ClientSecret, | ||
| TokenURL: config.Endpoint.TokenURL, | ||
| } | ||
|
|
||
| token, err := cfg.Token(context.Background()) | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| e := json.NewEncoder(w) | ||
| e.SetIndent("", " ") | ||
| e.Encode(token) | ||
| }) | ||
|
|
||
| log.Println("Client is running at 9094 port.Please open http://localhost:9094") | ||
| log.Fatal(http.ListenAndServe(":9094", nil)) | ||
| } | ||
|
|
||
| func genCodeChallengeS256(s string) string { | ||
| s256 := sha256.Sum256([]byte(s)) | ||
| return base64.URLEncoding.EncodeToString(s256[:]) | ||
| } | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/sha256" | ||
| "encoding/base64" | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "net/http" | ||
| "time" | ||
|
|
||
| "golang.org/x/oauth2" | ||
| "golang.org/x/oauth2/clientcredentials" | ||
| ) | ||
|
|
||
| const ( | ||
| authServerURL = "http://localhost:9096" | ||
| ) | ||
|
|
||
| var ( | ||
| config = oauth2.Config{ | ||
| ClientID: "222222", | ||
| ClientSecret: "22222222", | ||
| Scopes: []string{"all"}, | ||
| RedirectURL: "http://localhost:9094/oauth2", | ||
| Endpoint: oauth2.Endpoint{ | ||
| AuthURL: authServerURL + "/oauth/authorize", | ||
| TokenURL: authServerURL + "/oauth/token", | ||
| }, | ||
| } | ||
| globalToken *oauth2.Token // Non-concurrent security | ||
| ) | ||
|
|
||
| func main() { | ||
| http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { | ||
| u := config.AuthCodeURL("xyz", | ||
| oauth2.SetAuthURLParam("code_challenge", genCodeChallengeS256("s256example")), | ||
| oauth2.SetAuthURLParam("code_challenge_method", "S256")) | ||
| http.Redirect(w, r, u, http.StatusFound) | ||
| }) | ||
|
|
||
| http.HandleFunc("/oauth2", func(w http.ResponseWriter, r *http.Request) { | ||
| r.ParseForm() | ||
| state := r.Form.Get("state") | ||
| if state != "xyz" { | ||
| http.Error(w, "State invalid", http.StatusBadRequest) | ||
| return | ||
| } | ||
| code := r.Form.Get("code") | ||
| if code == "" { | ||
| http.Error(w, "Code not found", http.StatusBadRequest) | ||
| return | ||
| } | ||
| token, err := config.Exchange(context.Background(), code, oauth2.SetAuthURLParam("code_verifier", "s256example")) | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
| globalToken = token | ||
|
|
||
| e := json.NewEncoder(w) | ||
| e.SetIndent("", " ") | ||
| e.Encode(token) | ||
| }) | ||
|
|
||
| http.HandleFunc("/refresh", func(w http.ResponseWriter, r *http.Request) { | ||
| if globalToken == nil { | ||
| http.Redirect(w, r, "/", http.StatusFound) | ||
| return | ||
| } | ||
|
|
||
| globalToken.Expiry = time.Now() | ||
| token, err := config.TokenSource(context.Background(), globalToken).Token() | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| globalToken = token | ||
| e := json.NewEncoder(w) | ||
| e.SetIndent("", " ") | ||
| e.Encode(token) | ||
| }) | ||
|
|
||
| http.HandleFunc("/try", func(w http.ResponseWriter, r *http.Request) { | ||
| if globalToken == nil { | ||
| http.Redirect(w, r, "/", http.StatusFound) | ||
| return | ||
| } | ||
|
|
||
| resp, err := http.Get(fmt.Sprintf("%s/test?access_token=%s", authServerURL, globalToken.AccessToken)) | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusBadRequest) | ||
| return | ||
| } | ||
| defer resp.Body.Close() | ||
|
|
||
| io.Copy(w, resp.Body) | ||
| }) | ||
|
|
||
| http.HandleFunc("/pwd", func(w http.ResponseWriter, r *http.Request) { | ||
| token, err := config.PasswordCredentialsToken(context.Background(), "test", "test") | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| globalToken = token | ||
| e := json.NewEncoder(w) | ||
| e.SetIndent("", " ") | ||
| e.Encode(token) | ||
| }) | ||
|
|
||
| http.HandleFunc("/client", func(w http.ResponseWriter, r *http.Request) { | ||
| cfg := clientcredentials.Config{ | ||
| ClientID: config.ClientID, | ||
| ClientSecret: config.ClientSecret, | ||
| TokenURL: config.Endpoint.TokenURL, | ||
| } | ||
|
|
||
| token, err := cfg.Token(context.Background()) | ||
| if err != nil { | ||
| http.Error(w, err.Error(), http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| e := json.NewEncoder(w) | ||
| e.SetIndent("", " ") | ||
| e.Encode(token) | ||
| }) | ||
|
|
||
| log.Println("Client is running at 9094 port.Please open http://localhost:9094") | ||
| log.Fatal(http.ListenAndServe(":9094", nil)) | ||
| } | ||
|
|
||
| func genCodeChallengeS256(s string) string { | ||
| s256 := sha256.Sum256([]byte(s)) | ||
| return base64.URLEncoding.WithPadding(base64.NoPadding).EncodeToString(s256[:]) | ||
| } |