Removed invasive brandingHEADmaster

1 files changed, 145 insertions, 0 deletions

diff --git a/src/com/pkrandom/Utils.java b/src/com/pkrandom/Utils.java
new file mode 100644
index 0000000..d527faa
--- /dev/null
+++ b/src/com/pkrandom/Utils.java
@@ -0,0 +1,145 @@
+package com.pkrandom;
+
+/*----------------------------------------------------------------------------*/
+/*--  Utils.java - contains functions related to specific parts of the      --*/
+/*--               randomizer's functionality which cannot really be used   --*/
+/*--               outside of that function but should still be separated   --*/
+/*--               from GUI code.                                           --*/
+/*--                                                                        --*/
+/*--  Part of "Universal Pokemon Randomizer ZX" by the UPR-ZX team          --*/
+/*--  Pokemon and any associated names and the like are                     --*/
+/*--  trademark and (C) Nintendo 1996-2020.                                 --*/
+/*--                                                                        --*/
+/*--  The custom code written here is licensed under the terms of the GPL:  --*/
+/*--                                                                        --*/
+/*--  This program is free software: you can redistribute it and/or modify  --*/
+/*--  it under the terms of the GNU 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 General Public License for more details.                          --*/
+/*--                                                                        --*/
+/*--  You should have received a copy of the GNU General Public License     --*/
+/*--  along with this program. If not, see <http://www.gnu.org/licenses/>.  --*/
+/*----------------------------------------------------------------------------*/
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.net.URL;
+import java.nio.ByteBuffer;
+import java.util.Base64;
+import java.util.zip.CRC32;
+
+import com.pkrandom.exceptions.InvalidSupplementFilesException;
+import com.pkrandom.newgui.NewRandomizerGUI;
+
+public class Utils {
+
+    public static void validateRomFile(File fh) throws InvalidROMException {
+        // first, check for common filetypes that aren't ROMs
+        // read first 10 bytes of the file to do this
+        try {
+            FileInputStream fis = new FileInputStream(fh);
+            byte[] sig = new byte[10];
+            int sigLength = fis.read(sig);
+            fis.close();
+            if (sigLength < 10) {
+                throw new InvalidROMException(InvalidROMException.Type.LENGTH, String.format(
+                        "%s appears to be a blank or nearly blank file.", fh.getName()));
+            }
+            if (sig[0] == 0x50 && sig[1] == 0x4b && sig[2] == 0x03 && sig[3] == 0x04) {
+                throw new InvalidROMException(InvalidROMException.Type.ZIP_FILE, String.format(
+                        "%s is a ZIP archive, not a ROM.", fh.getName()));
+            }
+            if (sig[0] == 0x52 && sig[1] == 0x61 && sig[2] == 0x72 && sig[3] == 0x21 && sig[4] == 0x1A
+                    && sig[5] == 0x07) {
+                throw new InvalidROMException(InvalidROMException.Type.RAR_FILE, String.format(
+                        "%s is a RAR archive, not a ROM.", fh.getName()));
+            }
+            if (sig[0] == 'P' && sig[1] == 'A' && sig[2] == 'T' && sig[3] == 'C' && sig[4] == 'H') {
+                throw new InvalidROMException(InvalidROMException.Type.IPS_FILE, String.format(
+                        "%s is a IPS patch, not a ROM.", fh.getName()));
+            }
+        } catch (IOException ex) {
+            throw new InvalidROMException(InvalidROMException.Type.UNREADABLE, String.format(
+                    "Could not read %s from disk.", fh.getName()));
+        }
+    }
+
+    // RomHandlers implicitly rely on these - call this before creating settings
+    // etc.
+    public static void testForRequiredConfigs() throws FileNotFoundException {
+        String[] required = new String[] { "gameboy_jpn.tbl", "rby_english.tbl", "rby_freger.tbl", "rby_espita.tbl",
+                "green_translation.tbl", "gsc_english.tbl", "gsc_freger.tbl", "gsc_espita.tbl", "gba_english.tbl",
+                "gba_jpn.tbl", "Generation4.tbl", "Generation5.tbl", "gen1_offsets.ini", "gen2_offsets.ini",
+                "gen3_offsets.ini", "gen4_offsets.ini", "gen5_offsets.ini", "gen6_offsets.ini", "gen7_offsets.ini",
+                SysConstants.customNamesFile };
+        for (String filename : required) {
+            if (!FileFunctions.configExists(filename)) {
+                throw new FileNotFoundException(filename);
+            }
+        }
+    }
+
+    public static void validatePresetSupplementFiles(String config, CustomNamesSet customNames)
+            throws InvalidSupplementFilesException {
+        byte[] data = Base64.getDecoder().decode(config);
+
+        if (data.length < Settings.LENGTH_OF_SETTINGS_DATA + 9) {
+            throw new InvalidSupplementFilesException(InvalidSupplementFilesException.Type.UNKNOWN,
+                    "The preset config is too short to be valid");
+        }
+
+        // Check the checksum
+        ByteBuffer buf = ByteBuffer.allocate(4).put(data, data.length - 8, 4);
+        buf.rewind();
+        int crc = buf.getInt();
+
+        CRC32 checksum = new CRC32();
+        checksum.update(data, 0, data.length - 8);
+        if ((int) checksum.getValue() != crc) {
+            throw new IllegalArgumentException("Checksum failure.");
+        }
+
+        // Check the trainerclass & trainernames & nicknames crc
+        if (customNames == null && !FileFunctions.checkOtherCRC(data, 16, 4, SysConstants.customNamesFile, data.length - 4)) {
+            throw new InvalidSupplementFilesException(InvalidSupplementFilesException.Type.CUSTOM_NAMES,
+                    "Can't use this preset because you have a different set " + "of custom names to the creator.");
+        }
+    }
+
+    public static File getExecutionLocation() throws UnsupportedEncodingException {
+        URL location = NewRandomizerGUI.class.getProtectionDomain().getCodeSource().getLocation();
+        String file = location.getFile();
+        String plusEncoded = file.replaceAll("\\+", "%2b");
+        return new File(java.net.URLDecoder.decode(plusEncoded, "UTF-8"));
+    }
+
+    public static class InvalidROMException extends Exception {
+        /**
+         * 
+         */
+        private static final long serialVersionUID = 6568398515886021477L;
+
+        public enum Type {
+            LENGTH, ZIP_FILE, RAR_FILE, IPS_FILE, UNREADABLE
+        }
+
+        private final Type type;
+
+        public InvalidROMException(Type type, String message) {
+            super(message);
+            this.type = type;
+        }
+
+        public Type getType() {
+            return type;
+        }
+    }
+}
\ No newline at end of file