added some info about the speed of compression algorithms, mostly to warn about BZIP2, also added support for content URIs in file encrypt/decrypt activities

AndroidManifest.xml

@@ -199,5 +199,6 @@
 
     <uses-permission android:name="com.google.android.providers.gmail.permission.READ_GMAIL" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="com.fsck.k9.permission.READ_ATTACHMENT" />
 
 </manifest>

res/values-de/strings.xml

@@ -278,4 +278,9 @@
     <string name="hint_secretKeys">Private Schlüssel suchen</string>
     <string name="filterInfo">Filter: \"%s\"</string>
 
+    <!-- misc -->
+    <string name="fast">schnell</string>
+    <string name="slow">langsam</string>
+    <string name="very_slow">sehr langsam</string>
+
 </resources>

res/values/strings.xml

@@ -255,5 +255,10 @@
     <string name="hint_secretKeys">Search Secret Keys</string>
     <string name="filterInfo">Filter: \"%s\"</string>
 
+    <!-- misc -->
+    <string name="fast">fast</string>
+    <string name="slow">slow</string>
+    <string name="very_slow">very slow</string>
+
 </resources>
 

src/org/thialfihar/android/apg/DecryptActivity.java

@@ -209,6 +209,10 @@ public class DecryptActivity extends BaseActivity {
                 mInputFilename = mIntent.getDataString().replace("file://", "");
                 mFilename.setText(mInputFilename);
                 guessOutputFilename();
+            } else if ("content".equals(mIntent.getScheme())) {
+                mInputFilename = mIntent.getDataString();
+                mFilename.setText(mInputFilename);
+                guessOutputFilename();
             }
             mSource.setInAnimation(null);
             mSource.setOutAnimation(null);
@@ -363,12 +367,14 @@ public class DecryptActivity extends BaseActivity {
                 return;
             }
 
-            File file = new File(mInputFilename);
+            if (mInputFilename.startsWith("file")) {
-            if (!file.exists() || !file.isFile()) {
+                File file = new File(mInputFilename);
-                Toast.makeText(this, getString(R.string.errorMessage,
+                if (!file.exists() || !file.isFile()) {
-                                               getString(R.string.error_fileNotFound)),
+                    Toast.makeText(this, getString(R.string.errorMessage,
-                               Toast.LENGTH_SHORT).show();
+                                                   getString(R.string.error_fileNotFound)),
-                return;
+                                   Toast.LENGTH_SHORT).show();
+                    return;
+                }
             }
         }
 
@@ -388,7 +394,11 @@ public class DecryptActivity extends BaseActivity {
         try {
             InputStream in;
             if (mDecryptTarget == Id.target.file) {
-                in = new FileInputStream(mInputFilename);
+                if (mInputFilename.startsWith("file")) {
+                    in = new FileInputStream(mInputFilename);
+                } else {
+                    in = getContentResolver().openInputStream(Uri.parse(mInputFilename));
+                }
             } else {
                 in = new ByteArrayInputStream(mMessage.getText().toString().getBytes());
             }
@@ -403,7 +413,11 @@ public class DecryptActivity extends BaseActivity {
                 // look at the file/message again to check whether there's
                 // symmetric encryption data in there
                 if (mDecryptTarget == Id.target.file) {
-                    in = new FileInputStream(mInputFilename);
+                    if (mInputFilename.startsWith("file")) {
+                        in = new FileInputStream(mInputFilename);
+                    } else {
+                        in = getContentResolver().openInputStream(Uri.parse(mInputFilename));
+                    }
                 } else {
                     in = new ByteArrayInputStream(mMessage.getText().toString().getBytes());
                 }
@@ -488,10 +502,22 @@ public class DecryptActivity extends BaseActivity {
                 out = new ByteArrayOutputStream();
                 size = messageData.getBytes().length;
             } else {
-                in = new PositionAwareInputStream(new FileInputStream(mInputFilename));
+                if (mInputFilename.startsWith("content")) {
+                    InputStream tmp = getContentResolver().openInputStream(Uri.parse(mInputFilename));
+                    size = 0;
+                    long n = 0;
+                    byte dummy[] = new byte[0x10000];
+                    while ((n = tmp.read(dummy)) > 0) {
+                        size += n;
+                    }
+                    in = new PositionAwareInputStream(
+                            getContentResolver().openInputStream(Uri.parse(mInputFilename)));
+                } else {
+                    in = new PositionAwareInputStream(new FileInputStream(mInputFilename));
+                    File file = new File(mInputFilename);
+                    size = file.length();
+                }
                 out = new FileOutputStream(mOutputFilename);
-                File file = new File(mInputFilename);
-                size = file.length();
             }
 
             if (mSignedOnly) {

src/org/thialfihar/android/apg/EncryptActivity.java

@@ -203,10 +203,11 @@ public class EncryptActivity extends BaseActivity {
 
         mFileCompression = (Spinner) findViewById(R.id.fileCompression);
         Choice[] choices = new Choice[] {
-                new Choice(Id.choice.compression.none, getString(R.string.choice_none)),
+                new Choice(Id.choice.compression.none, getString(R.string.choice_none) +
-                new Choice(Id.choice.compression.zip, "ZIP"),
+                                                       " (" + getString(R.string.fast) + ")"),
-                new Choice(Id.choice.compression.bzip2, "BZIP2"),
+                new Choice(Id.choice.compression.zip, "ZIP (" + getString(R.string.fast) + ")"),
-                new Choice(Id.choice.compression.zlib, "ZLIB"),
+                new Choice(Id.choice.compression.zlib, "ZLIB (" + getString(R.string.fast) + ")"),
+                new Choice(Id.choice.compression.bzip2, "BZIP2 (" + getString(R.string.very_slow) + ")"),
         };
         ArrayAdapter<Choice> adapter =
                 new ArrayAdapter<Choice>(this, android.R.layout.simple_spinner_item, choices);
@@ -470,12 +471,14 @@ public class EncryptActivity extends BaseActivity {
                 return;
             }
 
-            File file = new File(mInputFilename);
+            if (!mInputFilename.startsWith("content")) {
-            if (!file.exists() || !file.isFile()) {
+                File file = new File(mInputFilename);
-                Toast.makeText(this, getString(R.string.errorMessage,
+                if (!file.exists() || !file.isFile()) {
-                                               getString(R.string.error_fileNotFound)),
+                    Toast.makeText(this, getString(R.string.errorMessage,
-                               Toast.LENGTH_SHORT).show();
+                                                   getString(R.string.error_fileNotFound)),
-                return;
+                                   Toast.LENGTH_SHORT).show();
+                    return;
+                }
             }
         }
 
@@ -576,11 +579,22 @@ public class EncryptActivity extends BaseActivity {
                     }
                 }
 
-                in = new FileInputStream(mInputFilename);
+                if (mInputFilename.startsWith("content")) {
+                    in = getContentResolver().openInputStream(Uri.parse(mInputFilename));
+                    size = 0;
+                    long n = 0;
+                    byte dummy[] = new byte[0x10000];
+                    while ((n = in.read(dummy)) > 0) {
+                        size += n;
+                    }
+                    in = getContentResolver().openInputStream(Uri.parse(mInputFilename));
+                } else {
+                    in = new FileInputStream(mInputFilename);
+                    File file = new File(mInputFilename);
+                    size = file.length();
+                }
                 out = new FileOutputStream(mOutputFilename);
 
-                File file = new File(mInputFilename);
-                size = file.length();
                 useAsciiArmour = mAsciiArmour.isChecked();
                 compressionId = ((Choice) mFileCompression.getSelectedItem()).getId();
             } else {

src/org/thialfihar/android/apg/PreferencesActivity.java

@@ -18,6 +18,7 @@ package org.thialfihar.android.apg;
 
 import org.bouncycastle2.bcpg.HashAlgorithmTags;
 import org.bouncycastle2.openpgp.PGPEncryptedData;
+import org.thialfihar.android.apg.utils.Choice;
 
 import android.os.Bundle;
 import android.preference.CheckBoxPreference;
@@ -118,12 +119,16 @@ public class PreferencesActivity extends PreferenceActivity {
 
         mMessageCompression = (IntegerListPreference) findPreference(Constants.pref.default_message_compression);
         valueIds = new int[] {
-                Id.choice.compression.none, Id.choice.compression.zip,
+                Id.choice.compression.none,
-                Id.choice.compression.bzip2, Id.choice.compression.zlib,
+                Id.choice.compression.zip,
+                Id.choice.compression.zlib,
+                Id.choice.compression.bzip2,
         };
         entries = new String[] {
-                getString(R.string.choice_none), "ZIP",
+                getString(R.string.choice_none) + " (" + getString(R.string.fast) + ")",
-                "BZIP2", "ZLIB",
+                "ZIP (" + getString(R.string.fast) + ")",
+                "ZLIB (" + getString(R.string.fast) + ")",
+                "BZIP2 (" + getString(R.string.very_slow) + ")",
         };
         values = new String[valueIds.length];
         for (int i = 0; i < values.length; ++i) {