email/pass login with sqlite db

.gitignore

@@ -7,3 +7,4 @@ target
 /tournamentfiles
 *.iml
 *~
+pairgoth.db

create-user.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+read -rp 'email: ' EMAIL
+read -rp 'password: ' PASSWORD
+
+ENCPASS=$(echo -n $PASSWORD | sha256sum)
+ENCPASS=${ENCPASS%  -}
+
+sqlite3 pairgoth.db "INSERT INTO cred (email, password) VALUES ('$EMAIL', '$ENCPASS')"

view-webapp/pom.xml

@@ -286,6 +286,12 @@
             <artifactId>lucene-queryparser</artifactId>
             <version>${lucene.version}</version>
         </dependency>
+        <!-- sqlite -->
+        <dependency>
+            <groupId>org.xerial</groupId>
+            <artifactId>sqlite-jdbc</artifactId>
+            <version>3.45.1.0</version>
+        </dependency>
         <!-- tests -->
         <dependency>
             <groupId>org.junit.jupiter</groupId>

view-webapp/src/main/kotlin/org/jeudego/pairgoth/util/CredentialsChecker.kt

@@ -0,0 +1,35 @@
+package org.jeudego.pairgoth.util
+
+import com.republicate.kson.Json
+import java.io.File
+import java.nio.charset.StandardCharsets
+import java.security.MessageDigest
+import java.sql.DriverManager
+
+object CredentialsChecker {
+    private const val CREDENTIALS_DB = "pairgoth.db"
+    private val hasher = MessageDigest.getInstance("SHA-256")
+    @OptIn(ExperimentalStdlibApi::class)
+    fun check(email: String, password: String): String? {
+        initDatabase()
+        val sha256 = hasher.digest(password.toByteArray(StandardCharsets.UTF_8)).toHexString()
+        DriverManager.getConnection("jdbc:sqlite:$CREDENTIALS_DB").use { conn ->
+            val rs =
+                conn.prepareStatement("SELECT 1 FROM cred WHERE email = ? AND password = ?").apply {
+                    setString(1, email)
+                    setString(2, password)
+                }.executeQuery()
+            return if (rs.next()) email else null
+        }
+    }
+
+    @Synchronized
+    fun initDatabase() {
+        if (!File(CREDENTIALS_DB).exists()) {
+            DriverManager.getConnection("jdbc:sqlite:$CREDENTIALS_DB").use { conn ->
+                conn.createStatement().executeUpdate("CREATE TABLE cred (email VARCHAR(200) UNIQUE NOT NULL, password VARCHAR(200) NOT NULL)")
+            }
+        }
+    }
+
+}

view-webapp/src/main/kotlin/org/jeudego/pairgoth/web/LoginServlet.kt

@@ -1,6 +1,7 @@
 package org.jeudego.pairgoth.web
 
 import com.republicate.kson.Json
+import org.jeudego.pairgoth.util.CredentialsChecker
 import org.slf4j.LoggerFactory
 import javax.servlet.http.HttpServlet
 import javax.servlet.http.HttpServletRequest
@@ -17,7 +18,7 @@ class LoginServlet: HttpServlet() {
             val payload = Json.Companion.parse(req.reader.readText())?.asObject() ?: throw Error("null json")
             val user = when (WebappManager.getProperty("auth")) {
                 "sesame" -> checkSesame(payload)
-                else -> null
+                else -> checkLoginPass(payload)
             } ?: throw Error("authentication failed")
             req.session.setAttribute("logged", user)
             val ret = Json.Object("status" to "ok")
@@ -25,7 +26,9 @@ class LoginServlet: HttpServlet() {
             resp.writer.println(ret.toString())
         } catch (t: Throwable) {
             logger.error("exception while logging in", t)
-            resp.sendError(HttpServletResponse.SC_BAD_REQUEST)
+            resp.contentType = "application/json"
+            resp.status = HttpServletResponse.SC_BAD_REQUEST
+            resp.writer.println(errorJson)
         }
     }
 
@@ -34,8 +37,15 @@ class LoginServlet: HttpServlet() {
         return if (payload.getString("sesame")?.equals(expected) == true) true else null
     }
 
+    fun checkLoginPass(payload: Json.Object): String? {
+        return CredentialsChecker.check(
+            payload.getString("email") ?: throw Error("Missing login field"),
+            payload.getString("password") ?: throw Error("missing password field"))
+    }
+
     companion object {
         fun isJson(mimeType: String) = "text/json" == mimeType || "application/json" == mimeType || mimeType.endsWith("+json")
         val logger = LoggerFactory.getLogger("login")
+        private val errorJson = "{ \"status\": \"error\", \"error\": \"authentication failed\"}"
     }
 }

view-webapp/src/main/sass/main.scss

@@ -215,6 +215,10 @@
     width: initial;
   }
 
+  .ui.form .centered.inline.fields {
+    justify-content: center;
+  }
+
   .ui.accordion .content {
     display: block;
     max-height: 0;

view-webapp/src/main/webapp/WEB-INF/translations/fr

@@ -162,3 +162,11 @@ white	blanc
 White	Blanc
 white vs. black	blanc vs. Noir
 confirmed.	confirmé(s).
+Note that login to this instance is reserved to French federation actors plus several external people at our discretion. Send us	La connexion à cette instance est réservée aux acteurs de la FFG et à quelques personnes extérieures, à notre discrétion. Envoyez-nous
+an email	un email
+to request an access.	pour demander un accès.
+(not yet available)	(pas encore disponible)
+Log in using	Se connecter avec
+(reserved to FFG actors)	(réservé aux acteurs FFG)
+Log in using an email	Se connecter avec un email
+password	mot de passe

view-webapp/src/main/webapp/index-ffg.html

@@ -8,6 +8,7 @@
   <ol>
     <li>
       <p><b>Stay in the browser</b>: If you prefer convenience, you can simply use the <span class="logo">pairgoth</span> instance graciously hosted by the French Go Federation.</p>
+      <p>Note that login to this instance is reserved to French federation actors plus several external people at our discretion. Send us <a href="mailto:pairgothjeudego.org">an email</a> to request an access.</p>
       <blockquote>
         <a class="nobreak" href="/login">Launch <span class="logo">pairgoth</span></a>
       </blockquote>

view-webapp/src/main/webapp/js/main.js

@@ -114,7 +114,7 @@ HTMLFormElement.prototype.val = function(name, value) {
   let tag = ctl.tagName;
   let type = tag === 'INPUT' ? ctl.attr('type') : undefined;
   if (
-    (tag === 'INPUT' && ['text', 'number', 'hidden'].includes(ctl.attr('type'))) ||
+    (tag === 'INPUT' && ['text', 'number', 'hidden', 'password'].includes(ctl.attr('type'))) ||
     tag === 'SELECT'
   ) {
     if (hasValue) {

view-webapp/src/main/webapp/login.html

@@ -30,30 +30,71 @@
 #elseif($auth == 'oauth')
 
 <div id="login" class="section">
-  <div>Log in using</div>
-    <div id="oauth-buttons">
+  <div id="oauth-buttons" class="roundbox">
   #foreach($provider in $oauthProviders)
-    <div>
-      <button id="login-$provider" class="ui floating basic button">$provider</button>
-    </div>
+    <form>
+      <label>Log in using</label>
+      <button id="login-$provider" type="button" class="ui green floating button">$provider</button>
+    #if($provider == 'ffg')
+      (reserved to FFG actors)
+    #end
+    </form>
   #end
   </div>
+  <div class="roundbox">
+    Log in using an email
+    <form id="login-form" class="ui form">
+      <div class="centered inline fields">
+        <div class="field">
+          <input name="email" type="text" placeholder="email"/>
+        </div>
+        <div class="field">
+          <input name="password" type="password" placeholder="password"/>
+        </div>
+        <button id="login-email" type="button" class="ui green floating button">Log in</button>
+      </div>
+    </form>
+  </div>
 </div>
 
 <script type="text/javascript">
 
+  async function digestMessage(message) {
+    const msgUint8 = new TextEncoder().encode(message);                           // encode as (utf-8) Uint8Array
+    const hashBuffer = await crypto.subtle.digest('SHA-256', msgUint8);           // hash the message
+    const hashArray = Array.from(new Uint8Array(hashBuffer));                     // convert buffer to byte array
+    const hashHex = hashArray.map((b) => b.toString(16).padStart(2, '0')).join(''); // convert bytes to hex string
+    return hashHex;
+  }
+
   onLoad(()=> {
   #foreach($provider in $oauthProviders)
     let buttonId = '#login-$provider';
     let loginURL= '$application.getAttribute("${provider}Provider").getLoginURL($session.id)';
     // #[[
-    console.log(`buttonId = ${buttonId}`);
-    console.log(`loginURL = ${loginURL}`);
     $(buttonId).on('click', e => {
       document.location.href = loginURL;
     });
     // ]]#
   #end
+    // #[[
+    $('#login-email').on('click', e => {
+      let form = $('#login-form')[0]
+      let password = form.val('password');
+      digestMessage(password).then(enc => {
+        let payload = {
+          'email': form.val('email'),
+          'password': enc
+        }
+        api.postJson('login', payload)
+          .then(resp => {
+            if (resp !== 'error' && resp.status === 'ok') {
+              document.location.href = '/index'
+            }
+          });
+      });
+    });
+    // ]]#
   });
 </script>