From: Felix Dörre <felix@dogcraft.de>
Date: Fri, 27 Jun 2014 16:05:54 +0000 (+0200)
Subject: Add assurance functions.
X-Git-Url: https://code.wpia.club/?p=gigi.git;a=commitdiff_plain;h=7f4a02fc53f56a5507d1d059c5c0636ed977ae62

Add assurance functions.
---

diff --git a/src/org/cacert/gigi/util/Notary.java b/src/org/cacert/gigi/util/Notary.java
index 92b231da..657264a6 100644
--- a/src/org/cacert/gigi/util/Notary.java
+++ b/src/org/cacert/gigi/util/Notary.java
@@ -1,8 +1,11 @@
 package org.cacert.gigi.util;
 
+import java.io.PrintWriter;
 import java.sql.PreparedStatement;
+import java.sql.ResultSet;
 import java.sql.SQLException;
 
+import org.cacert.gigi.User;
 import org.cacert.gigi.database.DatabaseConnection;
 
 public class Notary {
@@ -22,4 +25,67 @@ public class Notary {
 		q.setString(6, comment);
 		q.execute();
 	}
+
+	public static boolean checkAssuranceIsPossible(User assurer, User target,
+			PrintWriter errOut) {
+		if (assurer.getId() == target.getId()) {
+			if (errOut != null) {
+				errOut.println("Cannot assure myself.");
+			}
+			return false;
+		}
+		try {
+			PreparedStatement ps = DatabaseConnection
+					.getInstance()
+					.prepare(
+							"SELECT 1 FROM `notary` where `to`=? and `from`=? AND `deleted`=0");
+			ps.setInt(1, target.getId());
+			ps.setInt(2, assurer.getId());
+			ResultSet rs = ps.executeQuery();
+			if (rs.next()) {
+				if (errOut != null) {
+					errOut.println("You already assured this person.");
+				}
+				rs.close();
+				return false;
+			}
+			rs.close();
+			if (!assurer.canAssure()) {
+				if (errOut != null) {
+					errOut.println("You cannot assure.");
+				}
+				return false;
+			}
+		} catch (SQLException e) {
+			e.printStackTrace();
+		}
+		return true;
+	}
+
+	public synchronized static boolean assure(User assurer, User target,
+			int awarded, String location, String date) throws SQLException {
+		if (!checkAssuranceIsPossible(assurer, target, null)) {
+			return false;
+		}
+		User u = new User(target.getId());
+		if (!u.equals(target)) {
+			return false;
+		}
+		System.out.println("Would now assure.");
+		if (awarded > assurer.getMaxAssurePoints()) {
+			return false;
+		}
+
+		PreparedStatement ps = DatabaseConnection
+				.getInstance()
+				.prepare(
+						"INSERT INTO `notary` SET `from`=?, `to`=?, `points`=?, `location`=?, `date`=?");
+		ps.setInt(1, assurer.getId());
+		ps.setInt(2, target.getId());
+		ps.setInt(3, awarded);
+		ps.setString(4, location);
+		ps.setString(5, date);
+		ps.execute();
+		return true;
+	}
 }