diff options
Diffstat (limited to 'app/src/main/java/de/blinkt/openvpn/fragments/Utils.java')
| -rw-r--r-- | app/src/main/java/de/blinkt/openvpn/fragments/Utils.java | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/app/src/main/java/de/blinkt/openvpn/fragments/Utils.java b/app/src/main/java/de/blinkt/openvpn/fragments/Utils.java new file mode 100644 index 00000000..f7038877 --- /dev/null +++ b/app/src/main/java/de/blinkt/openvpn/fragments/Utils.java @@ -0,0 +1,221 @@ +package de.blinkt.openvpn.fragments; + +import android.annotation.TargetApi; +import android.content.Context; +import android.content.Intent; +import android.content.pm.PackageManager; +import android.content.pm.ResolveInfo; +import android.database.Cursor; +import android.net.Uri; +import android.os.Build; +import android.provider.OpenableColumns; +import android.util.Base64; +import android.util.Log; +import android.webkit.MimeTypeMap; +import de.blinkt.openvpn.VpnProfile; +import junit.framework.Assert; + +import java.io.*; +import java.util.List; +import java.util.TreeSet; +import java.util.Vector; + +public class Utils { + + + @TargetApi(Build.VERSION_CODES.KITKAT) + public static Intent getFilePickerIntent(Context c, FileType fileType) { + Intent i = new Intent(Intent.ACTION_GET_CONTENT); + i.addCategory(Intent.CATEGORY_OPENABLE); + TreeSet<String> supportedMimeTypes = new TreeSet<String>(); + Vector<String> extensions = new Vector<String>(); + + switch (fileType) { + case PKCS12: + i.setType("application/x-pkcs12"); + supportedMimeTypes.add("application/x-pkcs12"); + extensions.add("p12"); + extensions.add("pfx"); + break; + case CLIENT_CERTIFICATE: + case CA_CERTIFICATE: + i.setType("application/x-pem-file"); + supportedMimeTypes.add("application/x-x509-ca-cert"); + supportedMimeTypes.add("application/x-x509-user-cert"); + supportedMimeTypes.add("application/x-pem-file"); + supportedMimeTypes.add("text/plain"); + + extensions.add("pem"); + extensions.add("crt"); + break; + case KEYFILE: + i.setType("application/x-pem-file"); + supportedMimeTypes.add("application/x-pem-file"); + supportedMimeTypes.add("application/pkcs8"); + + // Google drive .... + supportedMimeTypes.add("application/x-iwork-keynote-sffkey"); + extensions.add("key"); + break; + + case TLS_AUTH_FILE: + i.setType("text/plain"); + + // Backup .... + supportedMimeTypes.add("application/pkcs8"); + // Google Drive is kind of crazy ..... + supportedMimeTypes.add("application/x-iwork-keynote-sffkey"); + + extensions.add("txt"); + extensions.add("key"); + break; + + case OVPN_CONFIG: + i.setType("application/x-openvpn-profile"); + supportedMimeTypes.add("application/x-openvpn-profile"); + supportedMimeTypes.add("application/openvpn-profile"); + supportedMimeTypes.add("application/ovpn"); + supportedMimeTypes.add("text/plain"); + extensions.add("ovpn"); + extensions.add("conf"); + break; + + case USERPW_FILE: + i.setType("text/plain"); + supportedMimeTypes.add("text/plain"); + break; + } + + MimeTypeMap mtm = MimeTypeMap.getSingleton(); + + for (String ext : extensions) { + String mimeType = mtm.getMimeTypeFromExtension(ext); + if (mimeType != null) + supportedMimeTypes.add(mimeType); + } + + // Always add this as fallback + supportedMimeTypes.add("application/octet-stream"); + + i.putExtra(Intent.EXTRA_MIME_TYPES, supportedMimeTypes.toArray(new String[supportedMimeTypes.size()])); + + + /* Samsung has decided to do something strange, on stock Android GET_CONTENT opens the document UI */ + /* fist try with documentsui */ + i.setPackage("com.android.documentsui"); + + //noinspection ConstantConditions + if (true || !isIntentAvailable(c,i)) { + i.setAction(Intent.ACTION_OPEN_DOCUMENT); + i.setPackage(null); + } + + return i; + } + + + public static boolean isIntentAvailable(Context context, Intent i) { + final PackageManager packageManager = context.getPackageManager(); + List<ResolveInfo> list = + packageManager.queryIntentActivities(i, + PackageManager.MATCH_DEFAULT_ONLY); + return list.size() > 0; + } + + + public enum FileType { + PKCS12(0), + CLIENT_CERTIFICATE(1), + CA_CERTIFICATE(2), + OVPN_CONFIG(3), + KEYFILE(4), + TLS_AUTH_FILE(5), + USERPW_FILE(6); + + private int value; + + FileType(int i) { + value = i; + } + + public static FileType getFileTypeByValue(int value) { + switch (value) { + case 0: + return PKCS12; + case 1: + return CLIENT_CERTIFICATE; + case 2: + return CA_CERTIFICATE; + case 3: + return OVPN_CONFIG; + case 4: + return KEYFILE; + case 5: + return TLS_AUTH_FILE; + case 6: + return USERPW_FILE; + default: + return null; + } + } + + public int getValue() { + return value; + } + } + + static private byte[] readBytesFromStream(InputStream input) throws IOException { + + ByteArrayOutputStream buffer = new ByteArrayOutputStream(); + + int nRead; + byte[] data = new byte[16384]; + + while ((nRead = input.read(data, 0, data.length)) != -1) { + buffer.write(data, 0, nRead); + } + + buffer.flush(); + input.close(); + return buffer.toByteArray(); + } + + public static String getFilePickerResult(FileType ft, Intent result, Context c) throws IOException, SecurityException { + + Uri uri = result.getData(); + if (uri == null) + return null; + + byte[] fileData = readBytesFromStream(c.getContentResolver().openInputStream(uri)); + String newData = null; + + Cursor cursor = c.getContentResolver().query(uri, null, null, null, null); + + String prefix = ""; + try { + if (cursor!=null && cursor.moveToFirst()) { + int cidx = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME); + if (cidx != -1) { + String displayName = cursor.getString(cidx); + + if (!displayName.contains(VpnProfile.INLINE_TAG) && !displayName.contains(VpnProfile.DISPLAYNAME_TAG)) + prefix = VpnProfile.DISPLAYNAME_TAG + displayName; + } + } + } finally { + if(cursor!=null) + cursor.close(); + } + + switch (ft) { + case PKCS12: + newData = Base64.encodeToString(fileData, Base64.DEFAULT); + break; + default: + newData = new String(fileData, "UTF-8"); + break; + } + + return prefix + VpnProfile.INLINE_TAG + newData; + } +} |