Extract login pages to own files

Fix api

Remove login window

Public/api.js

@@ -6,13 +6,25 @@ const apiPath = "/schafkopf"
 
 var useEnglishTexts = false
 
+const headerKeyPassword = "password";
+const headerKeyToken = "token";
+const headerKeyName = "name";
+const headerKeyMail = "email";
+
 function webSocketPath() {
     const prefix = (window.location.protocol === "https:") ? "wss://" : "ws://"
     return prefix + window.location.host + apiPath + "/session/start"
 }
 
-async function performRegisterPlayerRequest(name, password) {
-    return fetch(apiPath + "/player/register/" + name, { method: 'POST',  body: password })
+async function performRegisterPlayerRequest(name, password, email) {
+    return fetch(apiPath + "/player/register", {
+        method: 'POST',
+        headers: {
+            [headerKeyName]: name,
+            [headerKeyPassword]: password,
+            [headerKeyMail]: email
+        }
+    })
     .then(convertServerResponse)
 }
 
@@ -44,6 +56,22 @@ async function performGetCurrentTableRequest(token) {
     .then(convertJsonResponse)
 }
 
+async function performRecoveryEmailRequest(name) {
+    return fetch(apiPath + "/player/password/reset", {
+        method: 'POST',
+        headers: { [headerKeyName] : name },
+    })
+    .then(convertServerResponse)
+}
+
+async function performResetPasswordRequest(token, password) {
+    return fetch(apiPath + "/player/reset", {
+        method: 'POST',
+        headers: { [headerKeyPassword] : password, [headerKeyToken] : token }
+    })
+    .then(convertServerResponse)
+}
+
 async function performCreateTableRequest(token, name, visibility) {
     const vis = visibility ? "public" : "private";
     return fetch(apiPath + "/table/create/" + vis + "/" + name, { method: 'POST',  body: token })

Public/elements.js

@@ -4,14 +4,11 @@
 
 var playerName = ""
 var debugSessionToken = null
-const debugMode = false // Does not load session token, to allow multiple players per browser
 
 
 const offlineText = "Offline"
 const missingPlayerText = "Leer"
 
-const elementIdUserName = "user-name"
-const elementIdUserPssword = "user-pwd"
 const elementIdPlayerCards = "player-cards"
 const elementIdLoginWindow = "login-window"
 const elementIdTopBar = "top-bar"
@@ -28,22 +25,6 @@ const elementIdActionBar = "action-bar"
 const elementIdAvailableGamesList = "available-games-list"
 const elementIdGameSummary = "game-summary"
 
-const localStorageTokenId = "token"
-
-function showDebugLogins() {
-    document.getElementById("login-window-inner").innerHTML += 
-    "<button class=\"login-buttons standard-button\" onclick=\"loginDebugUser('a')\">Player A</button>" + 
-    "<button class=\"login-buttons standard-button\" onclick=\"loginDebugUser('b')\">Player B</button>" + 
-    "<button class=\"login-buttons standard-button\" onclick=\"loginDebugUser('c')\">Player C</button>" + 
-    "<button class=\"login-buttons standard-button\" onclick=\"loginDebugUser('d')\">Player D</button>"
-}
-
-function loginDebugUser(name) {
-    document.getElementById(elementIdUserName).value = name
-    document.getElementById(elementIdUserPssword).value = name
-    loginUser()
-}
-
 function setDisplayStyle(id, style) {
     document.getElementById(id).style.display = style
 }
@@ -102,41 +83,6 @@ function setPlayerName(name) {
     playerName = name
 }
 
-function getLoginName() {
-    return document.getElementById(elementIdUserName).value
-}
-
-function clearLoginName() {
-    document.getElementById(elementIdUserName).value = ""
-}
-
-function getLoginPassword() {
-    return document.getElementById(elementIdUserPssword).value
-}
-
-function clearLoginPassword() {
-    document.getElementById(elementIdUserPssword).value = ""
-}
-
-function getSessionToken() {
-    if (debugMode) {
-        return debugSessionToken
-    }
-    return localStorage.getItem(localStorageTokenId)
-}
-
-function setSessionToken(token) {
-    if (debugMode) {
-        debugSessionToken = token
-        return
-    }
-    localStorage.setItem(localStorageTokenId, token)
-}
-
-function deleteSessionToken() {
-    localStorage.removeItem(localStorageTokenId)
-}
-
 function setLoginError(text) {
     document.getElementById(elementIdLoginError).innerHTML = text
 }
@@ -388,8 +334,8 @@ function textForAction(action) {
         return "Herz Solo"
         case "solo-schelln":
         return "Schelln Solo"
-}
-return action
+    }
+    return action
 }
 
 function performAction(action) {

Public/game.js

@@ -119,19 +119,20 @@ function deletePlayerAccount() {
 }
 
 function loadExistingSession() {
-    if (debugMode) {
-        showDebugLogins()
-    }
-    const token = getSessionToken()
+    const token = loadSessionToken()
     if (token == null) {
-        showBlankLogin()
+        window.location.href = "login.html";
         return
     }
     resumeSessionRequest(token)
     .then(function(name) {
         setPlayerName(name)
         loadCurrentTable(token)
-    }).catch(showLoginWithError)
+    }).catch(function(error) {
+        console.log("Failed to resume session");
+        console.log(error);
+        window.location.href = "login.html";
+    })
 }
 
 function loadCurrentTable(token) {

Public/login.css

@@ -0,0 +1,69 @@
+
+#sheephead-logo {
+    color: rgb(0, 255, 0);
+    font-family: monospace, monospace;
+    white-space: pre;
+    text-align: center;
+    margin-bottom: 20px;
+}
+
+#login-window input {
+    width: 100%;
+    margin-top: 6px;
+    margin-bottom: 16px;
+}
+
+#login-window {
+    background-color: var(--standard-background);
+    height: 100%;
+    width: 100%;
+    top: 0;
+    left: 0;
+    display: table;
+    position: absolute;
+}
+
+#login-window-vertical-center {
+    display: table-cell;
+    vertical-align: middle;
+}
+
+#login-window-inner {
+    background-color: var(--element-background);
+    margin-left: auto;
+    margin-right: auto;
+    width: 300px;
+    border-radius: 10px;
+    border-style: solid;
+    border-width: thin;
+    border-color: var(--element-border);
+    padding: 10px;
+}
+
+.login-buttons {
+    width: 100%;
+    margin-top: 5px;
+}
+
+#login-error {
+    margin-top: 8px;
+}
+
+label a {
+    color: var(--button-color);
+    margin-left: auto;
+}
+
+label {
+    display: flex;
+    width: 100%;
+}
+
+#user-hint {
+    padding-top: 5px;
+}
+
+#field-note {
+    padding-left: 5px;
+    color: gray;
+}

Public/login.html

@@ -0,0 +1,70 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset='utf-8'>
+            <title>Schafkopf</title>
+            <meta name='viewport' content='width=device-width, initial-scale=1'/>
+            <link rel='stylesheet' type='text/css' media='screen' href='style.css'/>
+            <link rel='stylesheet' type='text/css' media='screen' href='login.css'/>
+            <script src='api.js'></script>
+            <script src='storage.js'></script>
+            <script src='login.js'></script>
+    </head>
+    <body>
+        <div id="login-window">
+            <div id="login-window-vertical-center">
+                <div id="login-window-inner">
+                    <div id="sheephead-logo">\_______/<br>\ - - /<br>\ | /<br>\_/<br><br>Sheephead</div>
+                    <label for="usrname">Username<a href="register.html">Create account</a></label>
+                    <input type="text" id="user-name" name="usrname" required/>
+
+                    <label for="psw">Password<a href="reset.html">Reset password</a></label>
+                    <input type="password" id="user-pwd" name="psw" required/>
+
+                    <button class="login-buttons standard-button" onclick="loginUser()">Log in</button>
+                    <div id="user-hint"></div>
+                </div>
+            </div>
+        </div>
+        <script>
+            function loginUser() {
+                const username = getLoginName();
+                const password = getLoginPassword();
+                if (username == "") {
+                    setTextHint("Please enter your user name");
+                    return
+                }
+                if (password == "") {
+                    setTextHint("Please enter a password");
+                    return
+                }
+                performLoginPlayerRequest(username, password)
+                .then(function(token) {
+                    storePlayerNameAndToken(username, token)
+                    window.location.href = "schafkopf.html";
+                }).catch(function(error) {
+                    console.log("Failed to log in")
+                    console.log(error)
+                    // TODO: Create better error message for user
+                    setTextHint(error);
+                })
+            }
+
+            function showDebugLogins() {
+                document.getElementById("login-window-inner").innerHTML +=
+                "<button class=\"login-buttons standard-button\" onclick=\"loginDebugUser('a')\">Player A</button>" +
+                "<button class=\"login-buttons standard-button\" onclick=\"loginDebugUser('b')\">Player B</button>" +
+                "<button class=\"login-buttons standard-button\" onclick=\"loginDebugUser('c')\">Player C</button>" +
+                "<button class=\"login-buttons standard-button\" onclick=\"loginDebugUser('d')\">Player D</button>"
+            }
+
+            function loginDebugUser(name) {
+                setLoginName(name)
+                setLoginPassword(name)
+                loginUser()
+            }
+
+            loadExistingSession()
+        </script>
+    </body>
+</html>

Public/login.js

@@ -0,0 +1,64 @@
+// Site-specific elements
+const elementIdUserName = "user-name";
+const elementIdUserPassword = "user-pwd";
+const elementIdUserEmail = "user-email";
+const elementIdUserHint = "user-hint";
+
+function getLoginName() {
+    return document.getElementById(elementIdUserName).value;
+}
+
+function clearLoginName() {
+    document.getElementById(elementIdUserName).value = "";
+}
+
+function setLoginName(name) {
+    document.getElementById(elementIdUserName).value = name;
+}
+
+function getLoginPassword() {
+    return document.getElementById(elementIdUserPassword).value;
+}
+
+function clearLoginPassword() {
+    document.getElementById(elementIdUserPassword).value = "";
+}
+
+function setLoginPassword(password) {
+    document.getElementById(elementIdUserPassword).value = password;
+}
+
+function getLoginEmail() {
+    return document.getElementById(elementIdUserEmail).value;
+}
+
+/*
+ * Set a text to indicate an action, warning or other message below the registration field;
+ */
+function setTextHint(text) {
+    document.getElementById(elementIdUserHint).innerHTML = text;
+}
+
+/*
+ * Attempt to reopen an existing session, either from the login or register page.
+ *
+ * It could be argued that this shouldn't be attempted for the registration page,
+ * but, a user may accidentally go to the registration page through the browser history,
+ * and then it will be convenient to be redirected to the game.
+ */
+function loadExistingSession() {
+    const token = loadSessionToken();
+    if (token == null) {
+        console.log("No session token to load")
+        return;
+    }
+    resumeSessionRequest(token)
+    .then(function(name) {
+        storePlayerNameAndToken(name, token);
+        window.location.href = "list.html";
+    }).catch(function(error) {
+        // We don't expect a session to resume if the registration page is shown,
+        // and if the token is expired on the login page we just fail quietly.
+        console.log(error);
+    })
+}

Public/recovery.html

@@ -0,0 +1,56 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset='utf-8'/>
+    <title>Schafkopf</title>
+    <meta name='viewport' content='width=device-width, initial-scale=1'/>
+    <link rel='stylesheet' type='text/css' href='style.css'/>
+    <link rel='stylesheet' type='text/css' href='login.css'/>
+    <script src='api.js'></script>
+    <script src='login.js'></script>
+</head>
+<body>
+    <div id="login-window">
+        <div id="login-window-vertical-center">
+            <div id="login-window-inner">
+                <div id="sheephead-logo">\_______/<br>\ - - /<br>\ | /<br>\_/<br><br>Sheephead</div>
+                <label for="psw">New Password</label>
+                <input type="password" id="user-pwd" name="psw" required>
+                
+                <button class="login-buttons standard-button" onclick="resetPassword()">Set new password</button>
+                <div id="user-hint"></div>
+            </div>
+        </div>
+    </div>
+    <script>
+
+        function resetPassword() {
+            const password = getLoginPassword()
+
+            if (password == "") {
+                setTextHint("Please enter a password")
+                return
+            }
+
+            const queryString = window.location.search;
+            const urlParams = new URLSearchParams(queryString);
+            if (!urlParams.has('token')) {
+                setTextHint("Please open a valid recovery link")
+                return
+            }
+            const token = urlParams.get('token');
+            if (token == "") {
+                setTextHint("Please open a valid recovery link")
+                return
+            }
+
+            performResetPasswordRequest(token, password)
+            .then(function(value) {
+                window.location.href = "login.html"
+            })
+            .catch(setTextHint)
+        }
+
+    </script>
+</body>
+</html>

Public/register.html

@@ -0,0 +1,75 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset='utf-8'>
+        <title>Schafkopf</title>
+        <meta name='viewport' content='width=device-width, initial-scale=1'/>
+        <link rel='stylesheet' type='text/css' media='screen' href='style.css'/>
+        <link rel='stylesheet' type='text/css' href='login.css'/>
+        <script src='api.js'></script>
+        <script src='storage.js'></script>
+        <script src='login.js'></script>
+</head>
+<body id="login-window">
+    <div id="login-window-vertical-center">
+        <div id="login-window-inner">
+            <div id="sheephead-logo">\_______/<br>\ - - /<br>\ | /<br>\_/<br><br>Sheephead</div>
+            <label for="usrname">Username<span id="field-note">Required</span><a href="login.html">Log in instead</a></label>
+            <input type="text" id="user-name" name="usrname" required autofocus/>
+
+            <label for="psw">Password<span id="field-note">Required</span></label>
+            <input type="password" id="user-pwd" name="psw" required/>
+
+            <label for="email">Email<span id="field-note">Optional, for password reset</span></label>
+            <input type="email" id="user-email" name="email"/>
+
+            <button class="login-buttons standard-button" onclick="registerUser()">Create account</button>
+            <div id="user-hint"></div>
+        </div>
+    </div>
+    <script>
+
+        // Email address validation regex
+        const mailformat = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
+
+        /*
+         * Register a new account.
+         *
+         * The function extracts the fields from the form, and attempts to create the account.
+         * Invalid emails are checked using basic validation.
+         *
+         * In case the registration fails, then we show an error to the user.
+         */
+        function registerUser() {
+            const username = getLoginName();
+            if (username == "") {
+                setTextHint("Please enter your user name");
+                return;
+            }
+            const password = getLoginPassword();
+            if (password == "") {
+                setTextHint("Please enter a password");
+                return;
+            }
+            const email = getLoginEmail();
+            if (email != "" && !email.match(mailformat)) {
+                setTextHint("Invalid email address");
+                return;
+            }
+
+            performRegisterPlayerRequest(username, password, email)
+            .then(function(token) {
+                storePlayerNameAndToken(username, token);
+                window.location.href = "list.html";
+            }).catch(function(error) {
+                // TODO: Show better error messages to user
+                console.log("Registration failed.");
+                console.log(error);
+                setTextHint(error);
+            })
+        }
+
+        loadExistingSession();
+    </script>
+</body>
+</html>

Public/reset.html

@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset='utf-8'/>
+    <title>Schafkopf</title>
+    <meta name='viewport' content='width=device-width, initial-scale=1'/>
+    <link rel='stylesheet' type='text/css' href='style.css'/>
+    <link rel='stylesheet' type='text/css' href='login.css'/>
+    <script src='api.js'></script>
+    <script src='login.js'></script>
+</head>
+<body>
+    <div id="login-window">
+        <div id="login-window-vertical-center">
+            <div id="login-window-inner">
+                <div id="sheephead-logo">\_______/<br>\ - - /<br>\ | /<br>\_/<br><br>Sheephead</div>
+                <label for="usrname">Username</span><a href="login.html">Log in instead</a></label>
+                <input type="text" id="user-name" name="usrname" required/>
+
+                <button class="login-buttons standard-button" onclick="resetPassword()">Send recovery email</button>
+                <div id="user-hint"></div>
+            </div>
+        </div>
+    </div>
+    <script>
+        function resetPassword() {
+            const name = getLoginName()
+
+            if (name == "") {
+                setTextHint("Please enter a name")
+                return
+            }
+
+            performRecoveryEmailRequest(name)
+            .then(function(value) {
+                setTextHint("The email has been sent")
+            })
+            .catch(setTextHint)
+        }
+    </script>
+</body>
+</html>

Public/schafkopf.html

@@ -7,6 +7,7 @@
     <link rel='stylesheet' type='text/css' media='screen' href='style.css'>
     <script src='elements.js?v=1'></script>
     <script src='api.js'></script>
+    <script src='storage.js'></script>
     <script src='game.js'></script>
 </head>
 <body>
@@ -72,23 +73,6 @@
             </div>
         </div>
     </div>
-    
-    <div id="login-window">
-        <div id="login-window-vertical-center">
-            <div id="login-window-inner">
-                <div id="sheephead-logo">\_______/<br> \ - - / <br>  \ | /  <br>   \_/   <br><br>Sheephead</div>
-                <label for="usrname">Username</label>
-                <input type="text" id="user-name" name="usrname" required>
-                
-                <label for="psw">Password</label>
-                <input type="password" id="user-pwd" name="psw" required>
-                
-                <button class="login-buttons standard-button" onclick="registerUser()">Register</button>
-                <button class="login-buttons standard-button" onclick="loginUser()">Log in</button>
-                <div id="login-error"></div>
-            </div>
-        </div>
-    </div>
     <script>
         loadExistingSession()
     </script>

Public/storage.js

@@ -0,0 +1,38 @@
+// Local storage element identifiers
+const localStorageTokenId = "token";
+const localStoragePlayerName = "name";
+
+// Can prevent loading of session token, to allow multiple players per browser
+const debugMode = false
+
+/*
+ * Store the player name and session token in local storage.
+ * Parameter name: The user name of the player
+ * Parameter token: The session token for the player session
+ */
+function storePlayerNameAndToken(name, token) {
+    localStorage.setItem(localStoragePlayerName, name);
+    localStorage.setItem(localStorageTokenId, token);
+}
+
+/*
+ * Get the last session token from local storage.
+ */
+function loadSessionToken() {
+    if (debugMode) {
+        return debugSessionToken
+    }
+    return localStorage.getItem(localStorageTokenId)
+}
+
+function storeSessionToken(token) {
+    if (debugMode) {
+        debugSessionToken = token
+        return
+    }
+    localStorage.setItem(localStorageTokenId, token)
+}
+
+function deleteSessionToken() {
+    localStorage.removeItem(localStorageTokenId)
+}

Public/style.css

@@ -37,12 +37,6 @@ input {
     background-color: var(--standard-background);
 }
 
-#login-window input {
-    width: 100%;
-    margin-top: 6px;
-    margin-bottom: 16px;
-}
-
 html * {
     font-family:-apple-system, BlinkMacSystemFont, "SF Hello", "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;
     color: var(--text-color);
@@ -60,49 +54,6 @@ body {
     position: absolute;
 }
 
-#login-window {
-    background-color: var(--standard-background);
-    height: 100%;
-    width: 100%;
-    top: 0;
-    left: 0;
-    display: table;
-    position: absolute;
-}
-
-#login-window-vertical-center {
-    display: table-cell;
-    vertical-align: middle;
-}
-
-#login-window-inner {
-    background-color: var(--element-background);
-    margin-left: auto;
-    margin-right: auto;
-    width: 300px;
-    border-radius: 10px;
-    border-style: solid;
-    border-width: thin;
-    border-color: var(--element-border);
-    padding: 10px;
-}
-
-#sheephead-logo {
-    color: rgb(0, 255, 0);
-    font-family: monospace, monospace;
-    white-space: pre;
-    text-align: center;
-}
-
-.login-buttons {
-    width: 100%;
-    margin-top: 5px;
-}
-
-#login-error {
-    margin-top: 8px;
-}
-
 #top-bar {
     height: 50px;
     background-color: var(--element-background);