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web/login: add support for SSO and Beeper email login
Fixes #493
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| // gomuks - A Matrix client written in Go. | ||
| // Copyright (C) 2024 Tulir Asokan | ||
| // | ||
| // This program is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU Affero General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // This program is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU Affero General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Affero General Public License | ||
| // along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
|
|
||
| package gomuks | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "html" | ||
| "net/http" | ||
| "net/url" | ||
| "time" | ||
|
|
||
| "go.mau.fi/util/random" | ||
| "maunium.net/go/mautrix" | ||
| ) | ||
|
|
||
| const ssoErrorPage = `<!DOCTYPE html> | ||
| <html lang="en"> | ||
| <head> | ||
| <meta charset="UTF-8"/> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1.0"/> | ||
| <title>gomuks web</title> | ||
| <style> | ||
| body { | ||
| font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; | ||
| margin: 0; | ||
| padding: 0; | ||
| display: flex; | ||
| justify-content: center; | ||
| align-items: center; | ||
| } | ||
| </style> | ||
| </head> | ||
| <body> | ||
| <h1>Failed to log in</h1> | ||
| <p><code>%s</code></p> | ||
| </body> | ||
| </html>` | ||
|
|
||
| func (gmx *Gomuks) parseSSOServerURL(r *http.Request) error { | ||
| cookie, _ := r.Cookie("gomuks_sso_session") | ||
| if cookie == nil { | ||
| return fmt.Errorf("no SSO session cookie") | ||
| } | ||
| var cookieData SSOCookieData | ||
| if !gmx.validateToken(cookie.Value, &cookieData) { | ||
| return fmt.Errorf("invalid SSO session cookie") | ||
| } else if cookieData.SessionID != r.URL.Query().Get("gomuksSession") { | ||
| return fmt.Errorf("session ID mismatch in query param and cookie") | ||
| } else if time.Until(cookieData.Expiry) < 0 { | ||
| return fmt.Errorf("SSO session cookie expired") | ||
| } | ||
| var err error | ||
| gmx.Client.Client.HomeserverURL, err = url.Parse(cookieData.HomeserverURL) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to parse server URL: %w", err) | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (gmx *Gomuks) HandleSSOComplete(w http.ResponseWriter, r *http.Request) { | ||
| err := gmx.parseSSOServerURL(r) | ||
| if err != nil { | ||
| w.Header().Set("Content-Type", "text/html") | ||
| w.WriteHeader(http.StatusBadRequest) | ||
| _, _ = fmt.Fprintf(w, ssoErrorPage, html.EscapeString(err.Error())) | ||
| return | ||
| } | ||
| err = gmx.Client.Login(r.Context(), &mautrix.ReqLogin{ | ||
| Type: mautrix.AuthTypeToken, | ||
| Token: r.URL.Query().Get("loginToken"), | ||
| }) | ||
| if err != nil { | ||
| w.Header().Set("Content-Type", "text/html") | ||
| w.WriteHeader(http.StatusBadRequest) | ||
| _, _ = fmt.Fprintf(w, ssoErrorPage, html.EscapeString(err.Error())) | ||
| } else { | ||
| w.Header().Set("Location", "..") | ||
| w.WriteHeader(http.StatusFound) | ||
| } | ||
| } | ||
|
|
||
| type SSOCookieData struct { | ||
| SessionID string `json:"session_id"` | ||
| HomeserverURL string `json:"homeserver_url"` | ||
| Expiry time.Time `json:"expiry"` | ||
| } | ||
|
|
||
| func (gmx *Gomuks) PrepareSSO(w http.ResponseWriter, r *http.Request) { | ||
| var data SSOCookieData | ||
| err := json.NewDecoder(r.Body).Decode(&data) | ||
| if err != nil { | ||
| mautrix.MBadJSON.WithMessage("Failed to decode request JSON").Write(w) | ||
| return | ||
| } | ||
| data.SessionID = random.String(16) | ||
| data.Expiry = time.Now().Add(30 * time.Minute) | ||
| cookieData, err := json.Marshal(&data) | ||
| if err != nil { | ||
| mautrix.MUnknown.WithMessage("Failed to encode cookie data").Write(w) | ||
| return | ||
| } | ||
| http.SetCookie(w, &http.Cookie{ | ||
| Name: "gomuks_sso_session", | ||
| Value: gmx.signToken(json.RawMessage(cookieData)), | ||
| Expires: data.Expiry, | ||
| HttpOnly: true, | ||
| Secure: true, | ||
| SameSite: http.SameSiteLaxMode, | ||
| }) | ||
| w.Header().Set("Content-Type", "application/json") | ||
| w.WriteHeader(http.StatusOK) | ||
| _, _ = w.Write(cookieData) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| // gomuks - A Matrix client written in Go. | ||
| // Copyright (C) 2024 Tulir Asokan | ||
| // | ||
| // This program is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU Affero General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // This program is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU Affero General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Affero General Public License | ||
| // along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
|
|
||
| const headers = { | ||
| "Authorization": "Bearer BEEPER-PRIVATE-API-PLEASE-DONT-USE", | ||
| "Content-Type": "application/json", | ||
| } | ||
|
|
||
| async function tryJSON(resp: Response): Promise<unknown> { | ||
| try { | ||
| return await resp.json() | ||
| } catch (err) { | ||
| console.error(err) | ||
| } | ||
| } | ||
|
|
||
| export async function doSubmitCode(domain: string, request: string, response: string): Promise<string> { | ||
| const resp = await fetch(`https://api.${domain}/user/login/response`, { | ||
| method: "POST", | ||
| body: JSON.stringify({ response, request }), | ||
| headers, | ||
| }) | ||
| const data = await tryJSON(resp) as { token?: string, error?: string } | ||
| console.log("Login code submit response data:", data) | ||
| if (!resp.ok) { | ||
| throw new Error(data ? `HTTP ${resp.status} / ${data?.error ?? JSON.stringify(data)}` : `HTTP ${resp.status}`) | ||
| } else if (!data || typeof data !== "object" || typeof data.token !== "string") { | ||
| throw new Error(`No token returned`) | ||
| } | ||
| return data.token | ||
| } | ||
|
|
||
| export async function doRequestCode(domain: string, request: string, email: string) { | ||
| const resp = await fetch(`https://api.${domain}/user/login/email`, { | ||
| method: "POST", | ||
| body: JSON.stringify({ email, request }), | ||
| headers, | ||
| }) | ||
| const data = await tryJSON(resp) as { error?: string } | ||
| console.log("Login email submit response data:", data) | ||
| if (!resp.ok) { | ||
| throw new Error(data ? `HTTP ${resp.status} / ${data?.error ?? JSON.stringify(data)}` : `HTTP ${resp.status}`) | ||
| } | ||
| } | ||
|
|
||
| export async function doStartLogin(domain: string): Promise<string> { | ||
| const resp = await fetch(`https://api.${domain}/user/login`, { | ||
| method: "POST", | ||
| body: "{}", | ||
| headers, | ||
| }) | ||
| const data = await tryJSON(resp) as { request?: string, error?: string } | ||
| console.log("Login start response data:", data) | ||
| if (!resp.ok) { | ||
| throw new Error(data ? `HTTP ${resp.status} / ${data?.error ?? JSON.stringify(data)}` : `HTTP ${resp.status}`) | ||
| } else if (!data || typeof data !== "object" || typeof data.request !== "string") { | ||
| throw new Error(`No request ID returned`) | ||
| } | ||
| return data.request | ||
| } |
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