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-rw-r--r--src/main/java/de/thedevstack/conversationsplus/entities/DownloadableFile.java83
1 files changed, 83 insertions, 0 deletions
diff --git a/src/main/java/de/thedevstack/conversationsplus/entities/DownloadableFile.java b/src/main/java/de/thedevstack/conversationsplus/entities/DownloadableFile.java
new file mode 100644
index 00000000..101475c3
--- /dev/null
+++ b/src/main/java/de/thedevstack/conversationsplus/entities/DownloadableFile.java
@@ -0,0 +1,83 @@
+package de.thedevstack.conversationsplus.entities;
+
+import java.io.File;
+
+import de.thedevstack.conversationsplus.utils.MimeUtils;
+
+public class DownloadableFile extends File {
+
+ private static final long serialVersionUID = 2247012619505115863L;
+
+ private long expectedSize = 0;
+ private String sha1sum;
+ private byte[] aeskey;
+
+ private byte[] iv = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+ 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0xf };
+
+ public DownloadableFile(String path) {
+ super(path);
+ }
+
+ public long getSize() {
+ return super.length();
+ }
+
+ public long getExpectedSize() {
+ return this.expectedSize;
+ }
+
+ public String getMimeType() {
+ String path = this.getAbsolutePath();
+ int start = path.lastIndexOf('.') + 1;
+ if (start < path.length()) {
+ String mime = MimeUtils.guessMimeTypeFromExtension(path.substring(start));
+ return mime == null ? "" : mime;
+ } else {
+ return "";
+ }
+ }
+
+ public void setExpectedSize(long size) {
+ this.expectedSize = size;
+ }
+
+ public String getSha1Sum() {
+ return this.sha1sum;
+ }
+
+ public void setSha1Sum(String sum) {
+ this.sha1sum = sum;
+ }
+
+ public void setKeyAndIv(byte[] keyIvCombo) {
+ if (keyIvCombo.length == 48) {
+ this.aeskey = new byte[32];
+ this.iv = new byte[16];
+ System.arraycopy(keyIvCombo, 0, this.iv, 0, 16);
+ System.arraycopy(keyIvCombo, 16, this.aeskey, 0, 32);
+ } else if (keyIvCombo.length >= 32) {
+ this.aeskey = new byte[32];
+ System.arraycopy(keyIvCombo, 0, aeskey, 0, 32);
+ } else if (keyIvCombo.length >= 16) {
+ this.aeskey = new byte[16];
+ System.arraycopy(keyIvCombo, 0, this.aeskey, 0, 16);
+ }
+ }
+
+ public void setKey(byte[] key) {
+ this.aeskey = key;
+ }
+
+ public void setIv(byte[] iv) {
+ this.iv = iv;
+ }
+
+ public byte[] getKey() {
+ return this.aeskey;
+ }
+
+ public byte[] getIv() {
+ return this.iv;
+ }
+}