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Diffstat (limited to 'src/com/isode/stroke/filetransfer/IncrementalBytestreamHashCalculator.java')
-rw-r--r--src/com/isode/stroke/filetransfer/IncrementalBytestreamHashCalculator.java79
1 files changed, 79 insertions, 0 deletions
diff --git a/src/com/isode/stroke/filetransfer/IncrementalBytestreamHashCalculator.java b/src/com/isode/stroke/filetransfer/IncrementalBytestreamHashCalculator.java
new file mode 100644
index 0000000..e79a7a5
--- /dev/null
+++ b/src/com/isode/stroke/filetransfer/IncrementalBytestreamHashCalculator.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2011 Tobias Markmann
+ * Licensed under the simplified BSD license.
+ * See Documentation/Licenses/BSD-simplified.txt for more information.
+ */
+/*
+ * Copyright (c) 2013-2014 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+/*
+ * Copyright (c) 2015 Tarun Gupta.
+ * Licensed under the simplified BSD license.
+ * See Documentation/Licenses/BSD-simplified.txt for more information.
+ */
+
+package com.isode.stroke.filetransfer;
+
+import com.isode.stroke.crypto.Hash;
+import com.isode.stroke.crypto.CryptoProvider;
+import com.isode.stroke.base.ByteArray;
+import com.isode.stroke.stringcodecs.Hexify;
+
+public class IncrementalBytestreamHashCalculator {
+
+ private Hash md5Hasher;
+ private Hash sha1Hasher;
+ private ByteArray md5Hash;
+ private ByteArray sha1Hash;
+
+ public IncrementalBytestreamHashCalculator(boolean doMD5, boolean doSHA1, CryptoProvider crypto) {
+ md5Hasher = doMD5 ? crypto.createMD5() : null;
+ sha1Hasher = doSHA1 ? crypto.createSHA1() : null;
+ }
+
+ public void feedData(final ByteArray data) {
+ if (md5Hasher != null) {
+ md5Hasher.update(data);
+ }
+ if (sha1Hasher != null) {
+ sha1Hasher.update(data);
+ }
+ }
+
+ /*void feedData(const SafeByteArray& data) {
+ if (md5Hasher) {
+ md5Hasher.update(createByteArray(data.data(), data.size()));
+ }
+ if (sha1Hasher) {
+ sha1Hasher.update(createByteArray(data.data(), data.size()));
+ }
+ }*/
+
+ public ByteArray getSHA1Hash() {
+ assert(sha1Hasher != null);
+ if (sha1Hash == null) {
+ sha1Hash = sha1Hasher.getHash();
+ }
+ return sha1Hash;
+ }
+
+ public ByteArray getMD5Hash() {
+ assert(md5Hasher != null);
+ if (md5Hash == null) {
+ md5Hash = md5Hasher.getHash();
+ }
+ return md5Hash;
+ }
+
+ public String getSHA1String() {
+ assert(sha1Hasher != null);
+ return Hexify.hexify(getSHA1Hash());
+ }
+
+ public String getMD5String() {
+ assert(md5Hasher != null);
+ return Hexify.hexify(getMD5Hash());
+ }
+} \ No newline at end of file