Añado los fuentes de java

2025-06-09 13:37:06 +02:00
parent d6c990e5d5
commit a97a6350ee
226 changed files with 57246 additions and 0 deletions
@@ -0,0 +1,56 @@
+package com.tarisan.util;
+
+public class Base64 {
+	 
+    private static final String base64code = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+            + "abcdefghijklmnopqrstuvwxyz" + "0123456789" + "+/";
+ 
+    private static final int splitLinesAt = 76;
+ 
+    public static byte[] zeroPad(int length, byte[] bytes) {
+        byte[] padded = new byte[length];
+        System.arraycopy(bytes, 0, padded, 0, bytes.length);
+        return padded;
+    }
+ 
+    public static String encode(String string) {
+ 
+        String encoded = "";
+        byte[] stringArray;
+        try {
+            stringArray = string.getBytes("UTF-8");  
+        } catch (Exception ignored) {
+            stringArray = string.getBytes();  
+        }
+
+        int paddingCount = (3 - (stringArray.length % 3)) % 3;
+
+        stringArray = zeroPad(stringArray.length + paddingCount, stringArray);
+
+        for (int i = 0; i < stringArray.length; i += 3) {
+            int j = ((stringArray[i] & 0xff) << 16) +
+                ((stringArray[i + 1] & 0xff) << 8) + 
+                (stringArray[i + 2] & 0xff);
+            encoded = encoded + base64code.charAt((j >> 18) & 0x3f) +
+                base64code.charAt((j >> 12) & 0x3f) +
+                base64code.charAt((j >> 6) & 0x3f) +
+                base64code.charAt(j & 0x3f);
+        }
+
+        return splitLines(encoded.substring(0, encoded.length() -
+            paddingCount) + "==".substring(0, paddingCount));
+ 
+    }
+    public static String splitLines(String string) {
+ 
+        String lines = "";
+        for (int i = 0; i < string.length(); i += splitLinesAt) {
+ 
+            lines += string.substring(i, Math.min(string.length(), i + splitLinesAt));
+            lines += "\r\n";
+ 
+        }
+        return lines;
+ 
+    }
+}