working on string-templated based static pages

2022-04-14 20:22:35 +02:00
parent b251e4e4cb
commit 0b13726d25
17 changed files with 2074 additions and 207 deletions
--- a/src/main/java/de/srsoftware/widerhall/data/User.java
+++ b/src/main/java/de/srsoftware/widerhall/data/User.java
@@ -0,0 +1,80 @@
+package de.srsoftware.widerhall.data;
+
+import de.srsoftware.widerhall.Util;
+
+import java.security.InvalidKeyException;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.time.LocalDate;
+import java.util.Map;
+
+import static de.srsoftware.widerhall.data.Database.*;
+
+public class User {
+    private static Database database = Database.open();
+    private String email, salt, hashedPass, name;
+
+    public User(String email, String name, String salt, String hashedPass) {
+        this.email = email;
+        this.name = name;
+        this.salt = salt;
+        this.hashedPass = hashedPass;
+    }
+
+    public static User create(String email, String name, String password) throws SQLException {
+        var salt = Util.sha256(email + name + LocalDate.now());
+        var hashedPass = Util.sha256(password+salt);
+        return new User(email,name,salt,hashedPass).save();
+    }
+
+    public static User load(String email, String password) throws InvalidKeyException, SQLException {
+        ResultSet rs = database
+                .query("SELECT * FROM Users")
+                .where(EMAIL,email)
+                .exec();
+
+        try {
+            if (rs.next()) {
+                email = rs.getString(EMAIL);
+                var name = rs.getString(NAME);
+                var hashedPassword = rs.getString(HASHED_PASS);
+                var salt = rs.getString(SALT);
+                var loadedUser = new User(email, name, salt, hashedPassword);
+                if (loadedUser.matching(password)) return loadedUser;
+            } else if (noUsers()){
+                return User.create(email,"Admin",password);
+            }
+        } finally {
+            rs.close();
+        }
+
+        throw new InvalidKeyException();
+    }
+
+    private static boolean noUsers() throws SQLException {
+        var rs = database.query("SELECT count(*) FROM users").exec();
+        try {
+            if (rs.next()) {
+                return rs.getInt(1) < 1;
+            }
+        } finally {
+            rs.close();
+        }
+        return false;
+    }
+
+    private boolean matching(String password) {
+        return hashedPass.equals(Util.sha256(password+salt));
+    }
+
+    private User save() throws SQLException {
+        database.insertInto("Users")
+                .values(Map.of(EMAIL,email,NAME,name,SALT,salt,HASHED_PASS,hashedPass))
+                .run();
+        return this;
+    }
+
+    public Map<String,String> map() {
+        return Map.of(EMAIL,email,NAME,name);
+    }
+}