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-rw-r--r--src/main/java/de/thedevstack/conversationsplus/entities/DownloadableFile.java168
1 files changed, 0 insertions, 168 deletions
diff --git a/src/main/java/de/thedevstack/conversationsplus/entities/DownloadableFile.java b/src/main/java/de/thedevstack/conversationsplus/entities/DownloadableFile.java
deleted file mode 100644
index 4031e546..00000000
--- a/src/main/java/de/thedevstack/conversationsplus/entities/DownloadableFile.java
+++ /dev/null
@@ -1,168 +0,0 @@
-package de.thedevstack.conversationsplus.entities;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.net.URLConnection;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.Key;
-import java.security.NoSuchAlgorithmException;
-
-import javax.crypto.Cipher;
-import javax.crypto.CipherInputStream;
-import javax.crypto.CipherOutputStream;
-import javax.crypto.NoSuchPaddingException;
-import javax.crypto.spec.IvParameterSpec;
-import javax.crypto.spec.SecretKeySpec;
-
-import de.thedevstack.android.logcat.Logging;
-import de.thedevstack.conversationsplus.Config;
-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 Key aeskey;
- private String mime;
-
- 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() {
- if (this.aeskey != null) {
- if (this.expectedSize == 0) {
- return 0;
- } else {
- return (this.expectedSize / 16 + 1) * 16;
- }
- } else {
- 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 setKey(byte[] key) {
- if (key.length == 48) {
- byte[] secretKey = new byte[32];
- byte[] iv = new byte[16];
- System.arraycopy(key, 0, iv, 0, 16);
- System.arraycopy(key, 16, secretKey, 0, 32);
- this.aeskey = new SecretKeySpec(secretKey, "AES");
- this.iv = iv;
- } else if (key.length >= 32) {
- byte[] secretKey = new byte[32];
- System.arraycopy(key, 0, secretKey, 0, 32);
- this.aeskey = new SecretKeySpec(secretKey, "AES");
- } else if (key.length >= 16) {
- byte[] secretKey = new byte[16];
- System.arraycopy(key, 0, secretKey, 0, 16);
- this.aeskey = new SecretKeySpec(secretKey, "AES");
- }
- }
-
- public Key getKey() {
- return this.aeskey;
- }
-
- public InputStream createInputStream() {
- if (this.getKey() == null) {
- try {
- return new FileInputStream(this);
- } catch (FileNotFoundException e) {
- return null;
- }
- } else {
- try {
- IvParameterSpec ips = new IvParameterSpec(iv);
- Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
- cipher.init(Cipher.ENCRYPT_MODE, this.getKey(), ips);
- Logging.d(Config.LOGTAG, "opening encrypted input stream");
- return new CipherInputStream(new FileInputStream(this), cipher);
- } catch (NoSuchAlgorithmException e) {
- Logging.d(Config.LOGTAG, "no such algo: " + e.getMessage());
- return null;
- } catch (NoSuchPaddingException e) {
- Logging.d(Config.LOGTAG, "no such padding: " + e.getMessage());
- return null;
- } catch (InvalidKeyException e) {
- Logging.d(Config.LOGTAG, "invalid key: " + e.getMessage());
- return null;
- } catch (InvalidAlgorithmParameterException e) {
- Logging.d(Config.LOGTAG, "invavid iv:" + e.getMessage());
- return null;
- } catch (FileNotFoundException e) {
- return null;
- }
- }
- }
-
- public OutputStream createOutputStream() {
- if (this.getKey() == null) {
- try {
- return new FileOutputStream(this);
- } catch (FileNotFoundException e) {
- return null;
- }
- } else {
- try {
- IvParameterSpec ips = new IvParameterSpec(this.iv);
- Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
- cipher.init(Cipher.DECRYPT_MODE, this.getKey(), ips);
- Logging.d(Config.LOGTAG, "opening encrypted output stream");
- return new CipherOutputStream(new FileOutputStream(this),
- cipher);
- } catch (NoSuchAlgorithmException e) {
- Logging.d(Config.LOGTAG, "no such algo: " + e.getMessage());
- return null;
- } catch (NoSuchPaddingException e) {
- Logging.d(Config.LOGTAG, "no such padding: " + e.getMessage());
- return null;
- } catch (InvalidKeyException e) {
- Logging.d(Config.LOGTAG, "invalid key: " + e.getMessage());
- return null;
- } catch (InvalidAlgorithmParameterException e) {
- Logging.d(Config.LOGTAG, "invavid iv:" + e.getMessage());
- return null;
- } catch (FileNotFoundException e) {
- return null;
- }
- }
- }
-}