1 files changed, 100 insertions, 0 deletions
diff --git a/android/sdl_android/src/main/java/com/smartdevicelink/trace/Mime.java b/android/sdl_android/src/main/java/com/smartdevicelink/trace/Mime.java
new file mode 100644
index 000000000..799ac98f4
--- /dev/null
+++ b/android/sdl_android/src/main/java/com/smartdevicelink/trace/Mime.java
@@ -0,0 +1,100 @@
+package com.smartdevicelink.trace;
+
+// Borrowed from Dave Boll's infamous SdlLinkRelay.java
+
+public class Mime {
+
+	private static final String BASE_64_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+	/**
+	 * @param str A String to encode into base64 String.
+	 * @return Base64 encoded String or a null String if input is null.
+	 */
+	public static String base64Encode(String str) {
+		if(str == null){
+			return null;
+		}
+
+		String b64String = "";
+		try {
+			byte[] strBytes = str.getBytes("US-ASCII");
+			b64String = base64Encode(strBytes);
+		} catch (Exception ex) {
+			// Don't care?
+		}
+		return b64String;
+	}
+
+	/**
+	 * @param bytesToEncode A byte array to encode into base64 String.
+	 * @return Base64 encoded String or a null String if input array is null.
+	 */
+	public static String base64Encode(byte bytesToEncode[]) {
+		if(bytesToEncode != null){
+			return base64Encode(bytesToEncode, 0, bytesToEncode.length);
+		}
+		return null;
+	}
+
+	/**
+	 * @param bytesToEncode A byte array to encode into base64 String.
+	 * @param offset        Offset to begin at
+	 * @param length        Length to read
+	 * @return Base64 encoded String or a null String if input array is null or the input range is out of bounds.
+	 */
+	public static String base64Encode(byte bytesToEncode[], int offset, int length) {
+		if (bytesToEncode == null || bytesToEncode.length < length || bytesToEncode.length < offset + length) {
+			return null;
+		}
+
+		StringBuilder sb = new StringBuilder();
+
+		int idxin = 0;
+		int b64idx = 0;
+
+		for (idxin = offset; idxin < offset + length; idxin++) {
+			switch ((idxin - offset) % 3) {
+				case 0:
+					b64idx = (bytesToEncode[idxin] >> 2) & 0x3f;
+					break;
+				case 1:
+					b64idx = (bytesToEncode[idxin] >> 4) & 0x0f;
+					b64idx |= ((bytesToEncode[idxin - 1] << 4) & 0x30);
+					break;
+				case 2:
+					b64idx = (bytesToEncode[idxin] >> 6) & 0x03;
+					b64idx |= ((bytesToEncode[idxin - 1] << 2) & 0x3c);
+					sb.append(getBase64Char(b64idx));
+					b64idx = bytesToEncode[idxin] & 0x3f;
+					break;
+			}
+			sb.append(getBase64Char(b64idx));
+		}
+
+		switch ((idxin - offset) % 3) {
+			case 0:
+				break;
+			case 1:
+				b64idx = (bytesToEncode[idxin - 1] << 4) & 0x30;
+				sb.append(getBase64Char(b64idx));
+				sb.append("==");
+				break;
+			case 2:
+				b64idx = ((bytesToEncode[idxin - 1] << 2) & 0x3c);
+				sb.append(getBase64Char(b64idx));
+				sb.append('=');
+				break;
+		}
+
+		return sb.toString();
+
+	}
+
+	private static char getBase64Char(int b64idx){
+		if(b64idx >= 0 && b64idx < BASE_64_CHARS.length()) {
+			return BASE_64_CHARS.charAt(b64idx);
+		}else{
+			return 0x20;
+		}
+	}
+}
+\ No newline at end of file