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-rw-r--r--juick-common/src/main/java/com/juick/server/util/HashUtils.java36
-rw-r--r--juick-common/src/main/java/com/juick/server/util/HttpBadRequestException.java32
-rw-r--r--juick-common/src/main/java/com/juick/server/util/HttpForbiddenException.java33
-rw-r--r--juick-common/src/main/java/com/juick/server/util/HttpNotFoundException.java32
-rw-r--r--juick-common/src/main/java/com/juick/server/util/HttpUtils.java95
-rw-r--r--juick-common/src/main/java/com/juick/server/util/ImageUtils.java168
-rw-r--r--juick-common/src/main/java/com/juick/server/util/TagUtils.java42
-rw-r--r--juick-common/src/main/java/com/juick/server/util/UserUtils.java55
-rw-r--r--juick-common/src/main/java/com/juick/server/util/WebUtils.java62
9 files changed, 555 insertions, 0 deletions
diff --git a/juick-common/src/main/java/com/juick/server/util/HashUtils.java b/juick-common/src/main/java/com/juick/server/util/HashUtils.java
new file mode 100644
index 00000000..b4500457
--- /dev/null
+++ b/juick-common/src/main/java/com/juick/server/util/HashUtils.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.juick.server.util;
+
+import java.util.Random;
+
+/**
+ * Created by vitalyster on 29.06.2017.
+ */
+public class HashUtils {
+ private static final String ABCDEF = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+ public static String generateHash(final int len) {
+ Random rnd = new Random();
+ StringBuilder sb = new StringBuilder(len);
+ for (int i = 0; i < len; i++) {
+ sb.append(ABCDEF.charAt(rnd.nextInt(ABCDEF.length())));
+ }
+ return sb.toString();
+ }
+}
diff --git a/juick-common/src/main/java/com/juick/server/util/HttpBadRequestException.java b/juick-common/src/main/java/com/juick/server/util/HttpBadRequestException.java
new file mode 100644
index 00000000..1c3b4e66
--- /dev/null
+++ b/juick-common/src/main/java/com/juick/server/util/HttpBadRequestException.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.juick.server.util;
+
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+/**
+ * Created by vt on 24/11/2016.
+ */
+@ResponseStatus(value = HttpStatus.BAD_REQUEST)
+public class HttpBadRequestException extends RuntimeException {
+ public HttpBadRequestException() {
+ super(StringUtils.EMPTY, null, false, false);
+ }
+}
diff --git a/juick-common/src/main/java/com/juick/server/util/HttpForbiddenException.java b/juick-common/src/main/java/com/juick/server/util/HttpForbiddenException.java
new file mode 100644
index 00000000..3251ca38
--- /dev/null
+++ b/juick-common/src/main/java/com/juick/server/util/HttpForbiddenException.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.juick.server.util;
+
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+/**
+ * Created by vt on 24/11/2016.
+ */
+@ResponseStatus(value = HttpStatus.FORBIDDEN)
+public class HttpForbiddenException extends RuntimeException {
+ public HttpForbiddenException() {
+ super(StringUtils.EMPTY, null, false, false);
+ }
+
+}
diff --git a/juick-common/src/main/java/com/juick/server/util/HttpNotFoundException.java b/juick-common/src/main/java/com/juick/server/util/HttpNotFoundException.java
new file mode 100644
index 00000000..f66ece8b
--- /dev/null
+++ b/juick-common/src/main/java/com/juick/server/util/HttpNotFoundException.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.juick.server.util;
+
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+/**
+ * Created by vt on 24/11/2016.
+ */
+@ResponseStatus(value = HttpStatus.NOT_FOUND)
+public class HttpNotFoundException extends RuntimeException {
+ public HttpNotFoundException() {
+ super(StringUtils.EMPTY, null, false, false);
+ }
+}
diff --git a/juick-common/src/main/java/com/juick/server/util/HttpUtils.java b/juick-common/src/main/java/com/juick/server/util/HttpUtils.java
new file mode 100644
index 00000000..35f594f3
--- /dev/null
+++ b/juick-common/src/main/java/com/juick/server/util/HttpUtils.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.juick.server.util;
+
+import org.apache.commons.codec.digest.DigestUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.net.URLConnection;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.UUID;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class HttpUtils {
+ private static final Logger logger = LoggerFactory.getLogger(HttpUtils.class);
+
+ public static String receiveMultiPartFile(MultipartFile attach, String tmpDir) {
+ if (attach !=null && !attach.isEmpty()) {
+ String partname = attach.getOriginalFilename();
+ if (partname != null && partname.length() > 0) {
+ String attachmentType = partname.substring(partname.length() - 3).toLowerCase();
+ if (attachmentType.equals("jpg") || attachmentType.equals("peg") || attachmentType.equals("png")) {
+ if (attachmentType.equals("peg")) {
+ attachmentType = "jpg";
+ }
+ String attachmentFName = DigestUtils.md5Hex(UUID.randomUUID().toString()) + "." + attachmentType;
+ try {
+ Files.write(Paths.get(tmpDir, attachmentFName),
+ attach.getBytes());
+ return attachmentFName;
+ } catch (IOException e) {
+ logger.warn("file receive error", e);
+ }
+ }
+ }
+ }
+ return StringUtils.EMPTY;
+ }
+ public static String downloadImage(URL url, String tmpDir) throws Exception {
+ URLConnection urlConn;
+ try {
+ urlConn = url.openConnection();
+ } catch (IOException e) {
+ logger.error(String.format("Failed open url: %s", url.toString()));
+ throw e;
+ }
+
+ try (InputStream is = urlConn.getInputStream()) {
+ String mime = urlConn.getContentType();
+
+ String attachmentType;
+ if (mime != null && mime.equals("image/jpeg")) {
+ attachmentType = "jpg";
+ } else if (mime != null && mime.equals("image/png")) {
+ attachmentType = "png";
+ } else if (url.getFile().toLowerCase().endsWith("jpg")) {
+ attachmentType = "jpg";
+ } else if (url.getFile().toLowerCase().endsWith("png")) {
+ attachmentType = "png";
+ } else {
+ throw new Exception("Wrong file type: " + mime);
+ }
+
+ String attachmentFName = DigestUtils.md5Hex(UUID.randomUUID().toString()) + "." + attachmentType;
+ Files.copy(is, Paths.get(tmpDir, attachmentFName));
+ return attachmentFName;
+ } catch (Exception e) {
+ logger.error(String.format("Failed download image by url: %s", url.toString()), e);
+ throw e;
+ }
+ }
+}
diff --git a/juick-common/src/main/java/com/juick/server/util/ImageUtils.java b/juick-common/src/main/java/com/juick/server/util/ImageUtils.java
new file mode 100644
index 00000000..94ecf71e
--- /dev/null
+++ b/juick-common/src/main/java/com/juick/server/util/ImageUtils.java
@@ -0,0 +1,168 @@
+
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.juick.server.util;
+
+import org.apache.commons.imaging.ImageInfo;
+import org.apache.commons.imaging.ImageReadException;
+import org.apache.commons.imaging.Imaging;
+import org.apache.commons.imaging.common.ImageMetadata;
+import org.apache.commons.imaging.formats.jpeg.JpegImageMetadata;
+import org.apache.commons.imaging.formats.tiff.TiffField;
+import org.apache.commons.imaging.formats.tiff.constants.TiffTagConstants;
+import org.apache.commons.io.FilenameUtils;
+import org.imgscalr.Scalr;
+import org.imgscalr.Scalr.Rotation;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+
+public class ImageUtils {
+
+/**
+ * Returns <code>BufferedImage</code>, same as <code>ImageIO.read()</code> does.
+ *
+ * <p>JPEG images with EXIF metadata are rotated according to Orientation tag.
+ *
+ * @param imageFile a <code>File</code> to read from.
+ */
+ private static BufferedImage readImageWithOrientation(File imageFile)
+ throws IOException {
+
+ BufferedImage image = ImageIO.read(imageFile);
+ if (!FilenameUtils.getExtension(imageFile.getName()).equals("jpg")) {
+ return image;
+ }
+
+ try {
+ ImageMetadata metadata = Imaging.getMetadata(imageFile);
+
+ if (metadata instanceof JpegImageMetadata) {
+ JpegImageMetadata jpegMetadata = (JpegImageMetadata) metadata;
+ TiffField orientationField = jpegMetadata.findEXIFValue(TiffTagConstants.TIFF_TAG_ORIENTATION);
+
+ if (orientationField != null) {
+ int orientation = orientationField.getIntValue();
+ switch (orientation) {
+ case TiffTagConstants.ORIENTATION_VALUE_ROTATE_90_CW:
+ image = Scalr.rotate(image, Rotation.CW_90);
+ break;
+ case TiffTagConstants.ORIENTATION_VALUE_ROTATE_180:
+ image = Scalr.rotate(image, Rotation.CW_180);
+ break;
+ case TiffTagConstants.ORIENTATION_VALUE_ROTATE_270_CW:
+ image = Scalr.rotate(image, Rotation.CW_270);
+ break;
+ case TiffTagConstants.ORIENTATION_VALUE_MIRROR_HORIZONTAL:
+ image = Scalr.rotate(image, Rotation.FLIP_HORZ);
+ break;
+ case TiffTagConstants.ORIENTATION_VALUE_MIRROR_VERTICAL:
+ image = Scalr.rotate(image, Rotation.FLIP_VERT);
+ break;
+ case TiffTagConstants.ORIENTATION_VALUE_MIRROR_HORIZONTAL_AND_ROTATE_90_CW:
+ image = Scalr.rotate(Scalr.rotate(image, Rotation.FLIP_HORZ), Rotation.CW_90);
+ break;
+ case TiffTagConstants.ORIENTATION_VALUE_MIRROR_HORIZONTAL_AND_ROTATE_270_CW:
+ image = Scalr.rotate(Scalr.rotate(image, Rotation.FLIP_HORZ), Rotation.CW_270);
+ break;
+ case TiffTagConstants.ORIENTATION_VALUE_HORIZONTAL_NORMAL:
+ default:
+ // do nothing
+ break;
+ }
+ }
+ }
+ } catch (ImageReadException e) {
+ // failed to read metadata.
+ // nothing to do here, return image as is.
+ }
+
+ return image;
+ }
+
+ /**
+ * Move attached image from temp folder to image folder.
+ * Create preview images in corresponding folders.
+ *
+ * @param tempFilename Name of the image file in the temp folder.
+ * @param outputFilename Name that will be used in the image folder.
+ * @param tmpDir Path string for the temp folder.
+ * @param imgDir Path string for the image folder.
+ */
+ public static void saveImageWithPreviews(String tempFilename, String outputFilename, String tmpDir, String imgDir)
+ throws IOException {
+ String ext = FilenameUtils.getExtension(outputFilename);
+
+ Path outputImagePath = Paths.get(imgDir, "p", outputFilename);
+ Files.move(Paths.get(tmpDir, tempFilename), outputImagePath);
+ BufferedImage originalImage = readImageWithOrientation(outputImagePath.toFile());
+
+ int width = originalImage.getWidth();
+ int height = originalImage.getHeight();
+ int maxDimension = (width > height) ? width : height;
+ BufferedImage image1024 = (maxDimension > 1024) ? Scalr.resize(originalImage, 1024) : originalImage;
+ BufferedImage image0512 = (maxDimension > 512) ? Scalr.resize(originalImage, 512) : originalImage;
+ BufferedImage image0160 = (maxDimension > 160) ? Scalr.resize(originalImage, 160) : originalImage;
+ ImageIO.write(image1024, ext, Paths.get(imgDir, "photos-1024", outputFilename).toFile());
+ ImageIO.write(image0512, ext, Paths.get(imgDir, "photos-512", outputFilename).toFile());
+ ImageIO.write(image0160, ext, Paths.get(imgDir, "ps", outputFilename).toFile());
+ }
+
+ /**
+ * Save new avatar in all required sizes.
+ *
+ * @param tempFilename Name of the image file in the temp folder.
+ * @param uid User id that is used to build image file names.
+ * @param tmpDir Path string for the temp folder.
+ * @param imgDir Path string for the image folder.
+ */
+ public static void saveAvatar(String tempFilename, int uid, String tmpDir, String imgDir)
+ throws IOException {
+ String ext = FilenameUtils.getExtension(tempFilename);
+ String originalName = String.format("%s.%s", uid, ext);
+ Path originalPath = Paths.get(imgDir, "ao", originalName);
+ Files.move(Paths.get(tmpDir, tempFilename), originalPath, StandardCopyOption.REPLACE_EXISTING);
+ BufferedImage originalImage = ImageIO.read(originalPath.toFile());
+
+ String targetExt = "png";
+ String targetName = String.format("%s.%s", uid, targetExt);
+ ImageIO.write(Scalr.resize(originalImage, 96), targetExt, Paths.get(imgDir, "a", targetName).toFile());
+ ImageIO.write(Scalr.resize(originalImage, 32), targetExt, Paths.get(imgDir, "as", targetName).toFile());
+ }
+
+ public static Integer getImageHeight(File imageFile) throws IOException, ImageReadException {
+ if (imageFile.exists()) {
+ ImageInfo info = Imaging.getImageInfo(imageFile);
+ return info.getHeight();
+ }
+ return 0;
+ }
+ public static Integer getImageWidth(File imageFile) throws IOException, ImageReadException {
+ if (imageFile.exists()) {
+ ImageInfo info = Imaging.getImageInfo(imageFile);
+ return info.getWidth();
+ }
+ return 0;
+ }
+} \ No newline at end of file
diff --git a/juick-common/src/main/java/com/juick/server/util/TagUtils.java b/juick-common/src/main/java/com/juick/server/util/TagUtils.java
new file mode 100644
index 00000000..9edeab32
--- /dev/null
+++ b/juick-common/src/main/java/com/juick/server/util/TagUtils.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.juick.server.util;
+
+import com.juick.Tag;
+import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.lang3.StringUtils;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Created by aalexeev on 11/13/16.
+ */
+public class TagUtils {
+ private TagUtils() {
+ throw new IllegalStateException();
+ }
+
+ public static String toString(final List<Tag> tags) {
+ if (CollectionUtils.isEmpty(tags))
+ return StringUtils.EMPTY;
+
+ return tags.stream().map(t -> " *" + t.getName())
+ .collect(Collectors.joining());
+ }
+}
diff --git a/juick-common/src/main/java/com/juick/server/util/UserUtils.java b/juick-common/src/main/java/com/juick/server/util/UserUtils.java
new file mode 100644
index 00000000..ab5c320b
--- /dev/null
+++ b/juick-common/src/main/java/com/juick/server/util/UserUtils.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.juick.server.util;
+
+import com.juick.User;
+import com.juick.server.helpers.AnonymousUser;
+import com.juick.service.security.entities.JuickUser;
+import javax.annotation.Nonnull;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+
+/**
+ * Created by aalexeev on 11/14/16.
+ */
+public class UserUtils {
+ private UserUtils() {
+ throw new IllegalStateException();
+ }
+
+ public static Authentication getAuthentication() {
+ return SecurityContextHolder.getContext().getAuthentication();
+ }
+
+ public static Object getPrincipal(final Authentication authentication) {
+ return authentication == null ? null : authentication.getPrincipal();
+ }
+
+ @Nonnull
+ public static User getCurrentUser() {
+ Object principal = getPrincipal(getAuthentication());
+
+ if (principal instanceof JuickUser)
+ return ((JuickUser) principal).getUser();
+
+ if (principal instanceof User)
+ return (User) principal;
+
+ return AnonymousUser.INSTANCE;
+ }
+}
diff --git a/juick-common/src/main/java/com/juick/server/util/WebUtils.java b/juick-common/src/main/java/com/juick/server/util/WebUtils.java
new file mode 100644
index 00000000..9dd628ee
--- /dev/null
+++ b/juick-common/src/main/java/com/juick/server/util/WebUtils.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2008-2017, Juick
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.juick.server.util;
+
+import java.util.regex.Pattern;
+
+/**
+ * Created by aalexeev on 11/28/16.
+ */
+public class WebUtils {
+ private WebUtils() {
+ throw new IllegalStateException();
+ }
+
+ private static final Pattern USER_NAME_PATTERN = Pattern.compile("[a-zA-Z-_\\d]{2,16}");
+
+ private static final Pattern POST_NUMBER_PATTERN = Pattern.compile("-?\\d+");
+
+ private static final Pattern JID_PATTERN = Pattern.compile("^[a-zA-Z0-9\\\\-\\\\_\\\\@\\\\.]{6,64}$");
+
+
+ public static boolean isPostNumber(final String aString) {
+ return aString != null && POST_NUMBER_PATTERN.matcher(aString).matches();
+ }
+
+ public static boolean isNotPostNumber(final String aString) {
+ return !isPostNumber(aString);
+ }
+
+ public static boolean isUserName(final String aString) {
+ return aString != null && USER_NAME_PATTERN.matcher(aString).matches();
+ }
+
+ public static boolean isNotUserName(final String aString) {
+ return !isUserName(aString);
+ }
+
+ public static boolean isJid(final String aString) {
+ return aString != null && JID_PATTERN.matcher(aString).matches();
+ }
+
+ public static boolean isNotJid(final String aString) {
+ return !isJid(aString);
+ }
+
+
+}