diff options
Diffstat (limited to 'app/src/main/java/de/blinkt/openvpn/activities/ConfigConverter.java')
| -rw-r--r-- | app/src/main/java/de/blinkt/openvpn/activities/ConfigConverter.java | 639 |
1 files changed, 639 insertions, 0 deletions
diff --git a/app/src/main/java/de/blinkt/openvpn/activities/ConfigConverter.java b/app/src/main/java/de/blinkt/openvpn/activities/ConfigConverter.java new file mode 100644 index 00000000..f870e8a9 --- /dev/null +++ b/app/src/main/java/de/blinkt/openvpn/activities/ConfigConverter.java @@ -0,0 +1,639 @@ + +package de.blinkt.openvpn.activities; + +import android.app.Activity; +import android.app.AlertDialog; +import android.app.AlertDialog.Builder; +import android.content.ActivityNotFoundException; +import android.content.Intent; +import android.database.Cursor; +import android.os.Bundle; +import android.os.Environment; +import android.provider.OpenableColumns; +import android.security.KeyChain; +import android.security.KeyChainAliasCallback; +import android.text.TextUtils; +import android.util.Base64; +import android.view.Menu; +import android.view.MenuInflater; +import android.view.MenuItem; +import android.view.View; +import android.view.ViewGroup; +import android.widget.CheckBox; +import android.widget.LinearLayout; +import android.widget.TextView; + +import junit.framework.Assert; + +import org.jetbrains.annotations.NotNull; + +import java.io.File; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Vector; + +import de.blinkt.openvpn.R; +import de.blinkt.openvpn.VpnProfile; +import de.blinkt.openvpn.core.ConfigParser; +import de.blinkt.openvpn.core.ConfigParser.ConfigParseError; +import de.blinkt.openvpn.core.ProfileManager; +import de.blinkt.openvpn.fragments.Utils; +import de.blinkt.openvpn.views.FileSelectLayout; + +import static de.blinkt.openvpn.views.FileSelectLayout.FileSelectCallback; + +public class ConfigConverter extends Activity implements FileSelectCallback { + + public static final String IMPORT_PROFILE = "de.blinkt.openvpn.IMPORT_PROFILE"; + private static final int RESULT_INSTALLPKCS12 = 7; + private static final int CHOOSE_FILE_OFFSET = 1000; + public static final String VPNPROFILE = "vpnProfile"; + + private VpnProfile mResult; + + private transient List<String> mPathsegments; + + private String mAliasName = null; + + + private Map<Utils.FileType, FileSelectLayout> fileSelectMap = new HashMap<Utils.FileType, FileSelectLayout>(); + private String mEmbeddedPwFile; + private Vector<String> mLogEntries = new Vector<String>(); + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + if (item.getItemId() == R.id.cancel) { + setResult(Activity.RESULT_CANCELED); + finish(); + } else if (item.getItemId() == R.id.ok) { + if (mResult == null) { + log("Importing the config had error, cannot save it"); + return true; + } + + Intent in = installPKCS12(); + + if (in != null) + startActivityForResult(in, RESULT_INSTALLPKCS12); + else + saveProfile(); + + return true; + } + + return super.onOptionsItemSelected(item); + + } + + @Override + protected void onSaveInstanceState(@NotNull Bundle outState) { + super.onSaveInstanceState(outState); + if (mResult != null) + outState.putSerializable(VPNPROFILE, mResult); + outState.putString("mAliasName", mAliasName); + + + + String[] logentries = mLogEntries.toArray(new String[mLogEntries.size()]); + + outState.putStringArray("logentries", logentries); + + int[] fileselects = new int[fileSelectMap.size()]; + int k = 0; + for (Utils.FileType key : fileSelectMap.keySet()) { + fileselects[k] = key.getValue(); + k++; + } + outState.putIntArray("fileselects", fileselects); + outState.putString("pwfile",mEmbeddedPwFile); + } + + @Override + protected void onActivityResult(int requestCode, int resultCode, Intent result) { + if (requestCode == RESULT_INSTALLPKCS12 && resultCode == Activity.RESULT_OK) { + showCertDialog(); + } + + if (resultCode == Activity.RESULT_OK && requestCode >= CHOOSE_FILE_OFFSET) { + Utils.FileType type = Utils.FileType.getFileTypeByValue(requestCode - CHOOSE_FILE_OFFSET); + + + FileSelectLayout fs = fileSelectMap.get(type); + fs.parseResponse(result, this); + + String data = fs.getData(); + + switch (type) { + case USERPW_FILE: + mEmbeddedPwFile = data; + break; + case PKCS12: + mResult.mPKCS12Filename = data; + break; + case TLS_AUTH_FILE: + mResult.mTLSAuthFilename = data; + break; + case CA_CERTIFICATE: + mResult.mCaFilename = data; + break; + case CLIENT_CERTIFICATE: + mResult.mClientCertFilename = data; + break; + case KEYFILE: + mResult.mClientKeyFilename = data; + break; + default: + Assert.fail(); + } + } + + super.onActivityResult(requestCode, resultCode, result); + } + + private void saveProfile() { + Intent result = new Intent(); + ProfileManager vpl = ProfileManager.getInstance(this); + + if (!TextUtils.isEmpty(mEmbeddedPwFile)) + ConfigParser.useEmbbedUserAuth(mResult, mEmbeddedPwFile); + + vpl.addProfile(mResult); + vpl.saveProfile(this, mResult); + vpl.saveProfileList(this); + result.putExtra(VpnProfile.EXTRA_PROFILEUUID, mResult.getUUID().toString()); + setResult(Activity.RESULT_OK, result); + finish(); + } + + public void showCertDialog() { + try { + KeyChain.choosePrivateKeyAlias(this, + new KeyChainAliasCallback() { + + public void alias(String alias) { + // Credential alias selected. Remember the alias selection for future use. + mResult.mAlias = alias; + saveProfile(); + } + + + }, + new String[]{"RSA"}, // List of acceptable key types. null for any + null, // issuer, null for any + mResult.mServerName, // host name of server requesting the cert, null if unavailable + -1, // port of server requesting the cert, -1 if unavailable + mAliasName); // alias to preselect, null if unavailable + } catch (ActivityNotFoundException anf) { + Builder ab = new AlertDialog.Builder(this); + ab.setTitle(R.string.broken_image_cert_title); + ab.setMessage(R.string.broken_image_cert); + ab.setPositiveButton(android.R.string.ok, null); + ab.show(); + } + } + + + private Intent installPKCS12() { + + if (!((CheckBox) findViewById(R.id.importpkcs12)).isChecked()) { + setAuthTypeToEmbeddedPKCS12(); + return null; + + } + String pkcs12datastr = mResult.mPKCS12Filename; + if (VpnProfile.isEmbedded(pkcs12datastr)) { + Intent inkeyIntent = KeyChain.createInstallIntent(); + + pkcs12datastr = VpnProfile.getEmbeddedContent(pkcs12datastr); + + + byte[] pkcs12data = Base64.decode(pkcs12datastr, Base64.DEFAULT); + + + inkeyIntent.putExtra(KeyChain.EXTRA_PKCS12, pkcs12data); + + if (mAliasName.equals("")) + mAliasName = null; + + if (mAliasName != null) { + inkeyIntent.putExtra(KeyChain.EXTRA_NAME, mAliasName); + } + return inkeyIntent; + + } + return null; + } + + + private void setAuthTypeToEmbeddedPKCS12() { + if (VpnProfile.isEmbedded(mResult.mPKCS12Filename)) { + if (mResult.mAuthenticationType == VpnProfile.TYPE_USERPASS_KEYSTORE) + mResult.mAuthenticationType = VpnProfile.TYPE_USERPASS_PKCS12; + + if (mResult.mAuthenticationType == VpnProfile.TYPE_KEYSTORE) + mResult.mAuthenticationType = VpnProfile.TYPE_PKCS12; + + } + } + + + private String getUniqueProfileName(String possibleName) { + + int i = 0; + + ProfileManager vpl = ProfileManager.getInstance(this); + + String newname = possibleName; + + // Default to + if (mResult.mName != null && !ConfigParser.CONVERTED_PROFILE.equals(mResult.mName)) + newname = mResult.mName; + + while (newname == null || vpl.getProfileByName(newname) != null) { + i++; + if (i == 1) + newname = getString(R.string.converted_profile); + else + newname = getString(R.string.converted_profile_i, i); + } + + return newname; + } + + @Override + public boolean onCreateOptionsMenu(Menu menu) { + MenuInflater inflater = getMenuInflater(); + inflater.inflate(R.menu.import_menu, menu); + return true; + } + + private String embedFile(String filename, Utils.FileType type) { + if (filename == null) + return null; + + // Already embedded, nothing to do + if (VpnProfile.isEmbedded(filename)) + return filename; + + File possibleFile = findFile(filename, type); + if (possibleFile == null) + return filename; + else + return readFileContent(possibleFile, type == Utils.FileType.PKCS12); + + } + + private File findFile(String filename, Utils.FileType fileType) { + File foundfile = findFileRaw(filename); + + if (foundfile == null && filename != null && !filename.equals("")) { + log(R.string.import_could_not_open, filename); + addFileSelectDialog(fileType); + } + + + return foundfile; + } + + private void addFileSelectDialog(Utils.FileType type) { + int titleRes = 0; + String value = null; + switch (type) { + case KEYFILE: + titleRes = R.string.client_key_title; + if (mResult != null) + value = mResult.mClientKeyFilename; + break; + case CLIENT_CERTIFICATE: + titleRes = R.string.client_certificate_title; + if (mResult != null) + value = mResult.mClientCertFilename; + break; + case CA_CERTIFICATE: + titleRes = R.string.ca_title; + if (mResult != null) + value = mResult.mCaFilename; + break; + case TLS_AUTH_FILE: + titleRes = R.string.tls_auth_file; + if (mResult != null) + value = mResult.mTLSAuthFilename; + break; + case PKCS12: + titleRes = R.string.client_pkcs12_title; + if (mResult != null) + value = mResult.mPKCS12Filename; + break; + + case USERPW_FILE: + titleRes = R.string.userpw_file; + value = mEmbeddedPwFile; + break; + + } + + boolean isCert = type == Utils.FileType.CA_CERTIFICATE || type == Utils.FileType.CLIENT_CERTIFICATE; + FileSelectLayout fl = new FileSelectLayout(this, getString(titleRes), isCert); + fileSelectMap.put(type, fl); + fl.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); + + ((LinearLayout) findViewById(R.id.config_convert_root)).addView(fl, 2); + findViewById(R.id.files_missing_hint).setVisibility(View.VISIBLE); + fl.setData(value, this); + int i = getFileLayoutOffset(type); + fl.setCaller(this, i, type); + + } + + private int getFileLayoutOffset(Utils.FileType type) { + return CHOOSE_FILE_OFFSET + type.getValue(); + } + + + private File findFileRaw(String filename) { + if (filename == null || filename.equals("")) + return null; + + // Try diffent path relative to /mnt/sdcard + File sdcard = Environment.getExternalStorageDirectory(); + File root = new File("/"); + + HashSet<File> dirlist = new HashSet<File>(); + + for (int i = mPathsegments.size() - 1; i >= 0; i--) { + String path = ""; + for (int j = 0; j <= i; j++) { + path += "/" + mPathsegments.get(j); + } + // Do a little hackish dance for the Android File Importer + // /document/primary:ovpn/openvpn-imt.conf + + + if (path.indexOf(':') != -1 && path.indexOf('/') > path.indexOf(':')) { + String possibleDir = path.substring(path.indexOf(':') + 1, path.length()); + possibleDir = possibleDir.substring(0, possibleDir.lastIndexOf('/')); + + + dirlist.add(new File(sdcard, possibleDir)); + + } + dirlist.add(new File(path)); + + + } + dirlist.add(sdcard); + dirlist.add(root); + + + String[] fileparts = filename.split("/"); + for (File rootdir : dirlist) { + String suffix = ""; + for (int i = fileparts.length - 1; i >= 0; i--) { + if (i == fileparts.length - 1) + suffix = fileparts[i]; + else + suffix = fileparts[i] + "/" + suffix; + + File possibleFile = new File(rootdir, suffix); + if (!possibleFile.canRead()) + continue; + + // read the file inline + return possibleFile; + + } + } + return null; + } + + String readFileContent(File possibleFile, boolean base64encode) { + byte[] filedata; + try { + filedata = readBytesFromFile(possibleFile); + } catch (IOException e) { + log(e.getLocalizedMessage()); + return null; + } + + String data; + if (base64encode) { + data = Base64.encodeToString(filedata, Base64.DEFAULT); + } else { + data = new String(filedata); + + } + + return VpnProfile.DISPLAYNAME_TAG + possibleFile.getName() + VpnProfile.INLINE_TAG + data; + + } + + + private byte[] readBytesFromFile(File file) throws IOException { + InputStream input = new FileInputStream(file); + + long len = file.length(); + if (len > VpnProfile.MAX_EMBED_FILE_SIZE) + throw new IOException("File size of file to import too large."); + + // Create the byte array to hold the data + byte[] bytes = new byte[(int) len]; + + // Read in the bytes + int offset = 0; + int bytesRead; + while (offset < bytes.length + && (bytesRead = input.read(bytes, offset, bytes.length - offset)) >= 0) { + offset += bytesRead; + } + + input.close(); + return bytes; + } + + void embedFiles() { + // This where I would like to have a c++ style + // void embedFile(std::string & option) + + if (mResult.mPKCS12Filename != null) { + File pkcs12file = findFileRaw(mResult.mPKCS12Filename); + if (pkcs12file != null) { + mAliasName = pkcs12file.getName().replace(".p12", ""); + } else { + mAliasName = "Imported PKCS12"; + } + } + + + mResult.mCaFilename = embedFile(mResult.mCaFilename, Utils.FileType.CA_CERTIFICATE); + mResult.mClientCertFilename = embedFile(mResult.mClientCertFilename, Utils.FileType.CLIENT_CERTIFICATE); + mResult.mClientKeyFilename = embedFile(mResult.mClientKeyFilename, Utils.FileType.KEYFILE); + mResult.mTLSAuthFilename = embedFile(mResult.mTLSAuthFilename, Utils.FileType.TLS_AUTH_FILE); + mResult.mPKCS12Filename = embedFile(mResult.mPKCS12Filename, Utils.FileType.PKCS12); + mEmbeddedPwFile = embedFile(mResult.mPassword, Utils.FileType.USERPW_FILE); + } + + @Override + protected void onCreate(Bundle savedInstanceState) { + + setContentView(R.layout.config_converter); + super.onCreate(savedInstanceState); + + if (savedInstanceState != null && savedInstanceState.containsKey(VPNPROFILE)) { + mResult = (VpnProfile) savedInstanceState.getSerializable(VPNPROFILE); + mAliasName = savedInstanceState.getString("mAliasName"); + mEmbeddedPwFile = savedInstanceState.getString("pwfile"); + + if (savedInstanceState.containsKey("logentries")) { + //noinspection ConstantConditions + for (String logItem : savedInstanceState.getStringArray("logentries")) + log(logItem); + } + if (savedInstanceState.containsKey("fileselects")) { + //noinspection ConstantConditions + for (int k : savedInstanceState.getIntArray("fileselects")) { + addFileSelectDialog(Utils.FileType.getFileTypeByValue(k)); + } + } + return; + } + + + final android.content.Intent intent = getIntent(); + + if (intent != null) { + final android.net.Uri data = intent.getData(); + if (data != null) { + //log(R.string.import_experimental); + log(R.string.importing_config, data.toString()); + try { + String possibleName = null; + if ((data.getScheme() != null && data.getScheme().equals("file")) || + (data.getLastPathSegment() != null && + (data.getLastPathSegment().endsWith(".ovpn") || + data.getLastPathSegment().endsWith(".conf"))) + ) { + possibleName = data.getLastPathSegment(); + if (possibleName.lastIndexOf('/') != -1) + possibleName = possibleName.substring(possibleName.lastIndexOf('/') + 1); + + } + InputStream is = getContentResolver().openInputStream(data); + mPathsegments = data.getPathSegments(); + + Cursor cursor = null; + if (data!=null) + cursor = getContentResolver().query(data, null, null, null, null); + + + try { + + + if (cursor!=null && cursor.moveToFirst()) { + int columnIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME); + + if (columnIndex != -1) { + String displayName = cursor.getString(columnIndex); + if (displayName != null) + possibleName = displayName; + } + columnIndex = cursor.getColumnIndex("mime_type"); + if (columnIndex != -1) { + log("Opening Mime TYPE: " + cursor.getString(columnIndex)); + } + } + } finally { + if(cursor!=null) + cursor.close(); + } + if (possibleName != null) { + possibleName = possibleName.replace(".ovpn", ""); + possibleName = possibleName.replace(".conf", ""); + } + + doImport(is, possibleName); + + } catch (FileNotFoundException e) { + log(R.string.import_content_resolve_error); + } + } + + // We parsed the intent, relay on saved instance for restoring + setIntent(null); + } + + + } + + + @Override + protected void onStart() { + super.onStart(); + + + } + + private void log(String logmessage) { + mLogEntries.add(logmessage); + TextView tv = new TextView(this); + tv.setText(logmessage); + LinearLayout logLayout = (LinearLayout) findViewById(R.id.config_convert_root); + logLayout.addView(tv); + } + + private void doImport(InputStream is, String newName) { + ConfigParser cp = new ConfigParser(); + try { + InputStreamReader isr = new InputStreamReader(is); + + cp.parseConfig(isr); + mResult = cp.convertProfile(); + embedFiles(); + displayWarnings(); + mResult.mName = getUniqueProfileName(newName); + + log(R.string.import_done); + return; + + } catch (IOException e) { + log(R.string.error_reading_config_file); + log(e.getLocalizedMessage()); + } catch (ConfigParseError e) { + log(R.string.error_reading_config_file); + log(e.getLocalizedMessage()); + } + mResult = null; + + } + + private void displayWarnings() { + if (mResult.mUseCustomConfig) { + log(R.string.import_warning_custom_options); + String copt = mResult.mCustomConfigOptions; + if (copt.startsWith("#")) { + int until = copt.indexOf('\n'); + copt = copt.substring(until + 1); + } + + log(copt); + } + + if (mResult.mAuthenticationType == VpnProfile.TYPE_KEYSTORE || + mResult.mAuthenticationType == VpnProfile.TYPE_USERPASS_KEYSTORE) { + findViewById(R.id.importpkcs12).setVisibility(View.VISIBLE); + } + + } + + private void log(int ressourceId, Object... formatArgs) { + log(getString(ressourceId, formatArgs)); + } + + +} |