Initialize all components from configuration

14 files changed, 827 insertions, 0 deletions

diff --git a/src/main/java/com/juick/util/HeaderRequestInterceptor.java b/src/main/java/com/juick/util/HeaderRequestInterceptor.java
new file mode 100644
index 00000000..22a3de06
--- /dev/null
+++ b/src/main/java/com/juick/util/HeaderRequestInterceptor.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2008-2020, 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.util;
+
+import org.springframework.http.HttpRequest;
+import org.springframework.http.client.ClientHttpRequestExecution;
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.http.client.ClientHttpResponse;
+
+import java.io.IOException;
+
+public class HeaderRequestInterceptor implements ClientHttpRequestInterceptor {
+
+    private final String headerName;
+
+    private final String headerValue;
+
+    public HeaderRequestInterceptor(String headerName, String headerValue) {
+        this.headerName = headerName;
+        this.headerValue = headerValue;
+    }
+
+    @Override
+    public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
+        request.getHeaders().set(headerName, headerValue);
+        return execution.execute(request, body);
+    }
+}
diff --git a/src/main/java/com/juick/util/HttpBadRequestException.java b/src/main/java/com/juick/util/HttpBadRequestException.java
new file mode 100644
index 00000000..386b52df
--- /dev/null
+++ b/src/main/java/com/juick/util/HttpBadRequestException.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2008-2020, 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.util;
+
+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("the request was bad", null, false, false);
+    }
+}
diff --git a/src/main/java/com/juick/util/HttpForbiddenException.java b/src/main/java/com/juick/util/HttpForbiddenException.java
new file mode 100644
index 00000000..e2211574
--- /dev/null
+++ b/src/main/java/com/juick/util/HttpForbiddenException.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2008-2020, 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.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/src/main/java/com/juick/util/HttpNotFoundException.java b/src/main/java/com/juick/util/HttpNotFoundException.java
new file mode 100644
index 00000000..f9d1ffbe
--- /dev/null
+++ b/src/main/java/com/juick/util/HttpNotFoundException.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2008-2020, 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.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/src/main/java/com/juick/util/HttpUtils.java b/src/main/java/com/juick/util/HttpUtils.java
new file mode 100644
index 00000000..46bb3e2d
--- /dev/null
+++ b/src/main/java/com/juick/util/HttpUtils.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2008-2020, 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.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.http.MediaType;
+import org.springframework.web.multipart.MultipartFile;
+
+import javax.imageio.ImageIO;
+import javax.imageio.ImageReader;
+import javax.imageio.stream.ImageInputStream;
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.net.URL;
+import java.net.URLConnection;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Iterator;
+import java.util.UUID;
+
+/**
+ *
+ * @author Ugnich Anton
+ */
+public class HttpUtils {
+    private static final Logger logger = LoggerFactory.getLogger(HttpUtils.class);
+
+    public static URI receiveMultiPartFile(MultipartFile attach, String tmpDir) throws IOException {
+        if (attach != null && !attach.isEmpty()) {
+            ImageInputStream iis = ImageIO.createImageInputStream(attach.getInputStream());
+            Iterator<ImageReader> readers = ImageIO.getImageReaders(iis);
+
+            String format = StringUtils.EMPTY;
+            while (readers.hasNext()) {
+                ImageReader read = readers.next();
+                format = read.getFormatName();
+            }
+            String attachmentType = attachmentTypeFromFormat(format);
+            if (attachmentType.equals("jpg") || attachmentType.equals("png")) {
+                String attachmentFName = DigestUtils.md5Hex(UUID.randomUUID().toString()) + "." + attachmentType;
+                try {
+                    Files.write(Paths.get(tmpDir, attachmentFName),
+                            attach.getBytes());
+                    return URI.create(String.format("juick://%s", attachmentFName));
+                } catch (IOException e) {
+                    logger.warn("file receive error", e);
+                }
+            }
+            logger.warn("file type is unknown: {}", attach.getOriginalFilename());
+        }
+        return URI.create(StringUtils.EMPTY);
+    }
+
+    private static String attachmentTypeFromFormat(String format) throws IOException {
+        if (format != null && format.equals("JPEG")) {
+            return "jpg";
+        } else if (format != null && format.equals("png")) {
+            return "png";
+        } else {
+            throw new IOException("Wrong file type: " + format);
+        }
+    }
+
+    public static String mediaType(String attachmentType) {
+        return attachmentType.equals("jpg") ? MediaType.IMAGE_JPEG_VALUE : MediaType.IMAGE_PNG_VALUE;
+    }
+
+    public static URI downloadImage(URL url, String tmpDir) throws IOException {
+        ImageInputStream iis = ImageIO.createImageInputStream(url.openStream());
+        Iterator<ImageReader> readers = ImageIO.getImageReaders(iis);
+
+        String format = StringUtils.EMPTY;
+        while (readers.hasNext()) {
+            ImageReader read = readers.next();
+            format = read.getFormatName();
+        }
+        URLConnection urlConn;
+        try {
+            urlConn = url.openConnection();
+        } catch (IOException e) {
+            logger.error(String.format("Failed open url: %s", url.toString()));
+            throw e;
+        }
+
+        try (InputStream is = new BufferedInputStream(urlConn.getInputStream())) {
+            String attachmentType = attachmentTypeFromFormat(format);
+
+            String attachmentFName = DigestUtils.md5Hex(UUID.randomUUID().toString()) + "." + attachmentType;
+            Files.copy(is, Paths.get(tmpDir, attachmentFName));
+            return URI.create(String.format("juick://%s", attachmentFName));
+        } catch (IOException e) {
+            logger.error(String.format("Failed download image by url: %s", url.toString()), e);
+            throw e;
+        }
+    }
+}
diff --git a/src/main/java/com/juick/util/ImageUtils.java b/src/main/java/com/juick/util/ImageUtils.java
new file mode 100644
index 00000000..38e1de08
--- /dev/null
+++ b/src/main/java/com/juick/util/ImageUtils.java
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2008-2020, 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.util;
+
+import com.juick.model.Attachment;
+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.FileUtils;
+import org.apache.commons.io.FilenameUtils;
+import org.imgscalr.Scalr;
+import org.imgscalr.Scalr.Rotation;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.imageio.ImageIO;
+import javax.imageio.ImageReader;
+import javax.imageio.stream.ImageInputStream;
+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;
+import java.util.Iterator;
+
+public class ImageUtils {
+    private static final Logger logger = LoggerFactory.getLogger(ImageUtils.class);
+
+    private String imgDir;
+    private String tmpDir;
+
+    public ImageUtils(String imgDir, String tmpDir) {
+        this.imgDir = imgDir;
+        this.tmpDir = tmpDir;
+    }
+/**
+ * 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 | IOException e) {
+            // failed to read metadata.
+            // nothing to do here, return image as is.
+        }
+
+        return image;
+    }
+
+    public void saveImageWithPreviews(String tempFilename, String outputFilename)
+            throws IOException {
+        String ext = FilenameUtils.getExtension(outputFilename);
+
+        Path outputImagePath = Paths.get(imgDir, "p", outputFilename);
+        // this throws strange exceptions
+        // Files.move(Paths.get(tmpDir, tempFilename), outputImagePath);
+        FileUtils.moveFile(Paths.get(tmpDir, tempFilename).toFile(), outputImagePath.toFile());
+        BufferedImage originalImage = readImageWithOrientation(outputImagePath.toFile());
+
+        int width = originalImage.getWidth();
+        int height = originalImage.getHeight();
+        int maxDimension = Math.max(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());
+    }
+
+    public void saveAvatar(String tempFilename, int uid)
+            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 Attachment getAttachment(File imgFile) throws IOException {
+        Attachment attachment = new Attachment();
+        try (ImageInputStream stream = ImageIO.createImageInputStream(imgFile)) {
+            Iterator<ImageReader> iter = ImageIO.getImageReaders(stream);
+            while (iter.hasNext()) {
+                ImageReader reader = iter.next();
+                try {
+                    reader.setInput(stream);
+                    attachment.setWidth(reader.getWidth(reader.getMinIndex()));
+                    attachment.setHeight(reader.getHeight(reader.getMinIndex()));
+                    return attachment;
+                } catch (Exception e) {
+                    logger.debug("Error reading {}, trying next reader", imgFile.getAbsolutePath());
+                } finally {
+                    reader.dispose();
+                }
+            }
+        }
+
+        logger.warn("Not a known image file {}", imgFile.getAbsolutePath());
+        return attachment;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/com/juick/util/TagUtils.java b/src/main/java/com/juick/util/TagUtils.java
new file mode 100644
index 00000000..2ec03e48
--- /dev/null
+++ b/src/main/java/com/juick/util/TagUtils.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2008-2020, 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.util;
+
+import com.juick.model.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/src/main/java/com/juick/util/WebUtils.java b/src/main/java/com/juick/util/WebUtils.java
new file mode 100644
index 00000000..3a8c7620
--- /dev/null
+++ b/src/main/java/com/juick/util/WebUtils.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2008-2020, 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.util;
+
+import javax.servlet.http.HttpServletRequest;
+import java.util.Optional;
+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);
+    }
+
+    public static String encodeSphinx(String str) {
+        return str.replaceAll("@", "\\\\@")
+                .replaceAll("\\'", "\\\\'")
+                .replaceAll("=", "\\\\\\\\=");
+    }
+    /**
+     * Returns the viewName to return for coming back to the sender url
+     *
+     * @param request Instance of {@link HttpServletRequest} or use an injected instance
+     * @return Optional with the view name. Recomended to use an alternativa url with
+     * {@link Optional#orElse(java.lang.Object)}
+     */
+    public static Optional<String> getPreviousPageByRequest(HttpServletRequest request)
+    {
+        return Optional.ofNullable(request.getHeader("Referer"));
+    }
+}
diff --git a/src/main/java/com/juick/util/adapters/SimpleDateAdapter.java b/src/main/java/com/juick/util/adapters/SimpleDateAdapter.java
new file mode 100644
index 00000000..fd5f3b5a
--- /dev/null
+++ b/src/main/java/com/juick/util/adapters/SimpleDateAdapter.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2008-2019, 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.util.adapters;
+
+import com.juick.util.DateFormattersHolder;
+
+import javax.xml.bind.annotation.adapters.XmlAdapter;
+import java.time.Instant;
+
+/**
+ * Created by vitalyster on 15.11.2016.
+ */
+
+public class SimpleDateAdapter extends XmlAdapter<String, Instant> {
+
+    @Override
+    public String marshal(Instant v) {
+        return DateFormattersHolder.getMessageFormatterInstance().format(v);
+    }
+
+    @Override
+    public Instant unmarshal(String v) {
+        return DateFormattersHolder.getMessageFormatterInstance().parse(v);
+    }
+}
diff --git a/src/main/java/com/juick/util/annotation/UserCommand.java b/src/main/java/com/juick/util/annotation/UserCommand.java
new file mode 100644
index 00000000..29e40ca2
--- /dev/null
+++ b/src/main/java/com/juick/util/annotation/UserCommand.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2008-2019, 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.util.annotation;
+
+import org.apache.commons.lang3.StringUtils;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * Created by oxpa on 22.03.16.
+ */
+@Target({ElementType.TYPE, ElementType.METHOD})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface UserCommand {
+    /**
+     *
+     * @return a command pattern
+     */
+    String pattern() default StringUtils.EMPTY;
+
+    /**
+     *
+     * @return pattern flags
+     */
+    int patternFlags() default 0;
+
+    /**
+     *
+     * @return a string used in HELP command output. Basically, only 1 string
+     */
+    String help() default StringUtils.EMPTY;
+}
diff --git a/src/main/java/com/juick/util/formatters/PlainTextFormatter.java b/src/main/java/com/juick/util/formatters/PlainTextFormatter.java
new file mode 100644
index 00000000..b5d67030
--- /dev/null
+++ b/src/main/java/com/juick/util/formatters/PlainTextFormatter.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2008-2019, 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.util.formatters;
+
+import com.juick.model.Message;
+import com.juick.util.MessageUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.ocpsoft.prettytime.PrettyTime;
+
+import java.util.Date;
+import java.util.Locale;
+
+/**
+ * Created by vitalyster on 12.10.2016.
+ */
+public class PlainTextFormatter {
+    static PrettyTime pt = new PrettyTime(new Locale("en"));
+
+    public static String formatPost(Message jmsg) {
+        return formatPost(jmsg, false);
+    }
+
+    public static String formatPost(Message jmsg, boolean markdown) {
+        StringBuilder sb = new StringBuilder();
+        String title = MessageUtils.isReply(jmsg) ? "Reply by @"  : MessageUtils.isPM(jmsg) ? "Private message from @" : "@";
+        String subtitle = MessageUtils.isReply(jmsg) ? markdown ? MessageUtils.escapeMarkdown(StringUtils.defaultString(jmsg.getReplyQuote()))
+                : jmsg.getReplyQuote()
+                : markdown ? MessageUtils.getMessageHashTags(jmsg) : MessageUtils.getTagsString(jmsg);
+        sb.append(title).append(markdown ? MessageUtils.getMarkdownUser(jmsg.getUser())  : jmsg.getUser().getName()).append(":\n")
+                .append(subtitle).append("\n");
+        if (markdown) {
+            sb.append(MessageUtils.formatMarkdownText(jmsg));
+        } else {
+            sb.append(StringUtils.defaultString(jmsg.getText()));
+        }
+        sb.append("\n");
+        if (!markdown && StringUtils.isNotEmpty(jmsg.getAttachmentType())) {
+            sb.append(MessageUtils.attachmentUrl(jmsg));
+        }
+        return sb.toString();
+    }
+
+    public static String formatPostSummary(Message m) {
+        int cropLength = 384;
+        String timeAgo = pt.format(Date.from(m.getCreated()));
+        String repliesCount = m.getReplies() == 1 ? "; 1 reply" : m.getReplies() == 0 ? ""
+                : String.format("; %d replies", m.getReplies());
+        StringBuilder sb = new StringBuilder();
+        String txt = StringUtils.defaultString(m.getText());
+        String attachmentUrl = MessageUtils.attachmentUrl(m);
+        if (StringUtils.isNotEmpty(attachmentUrl)) {
+            sb.append(attachmentUrl).append("\n");
+        }
+        if (txt.length() >= cropLength) {
+            sb.append(StringUtils.substring(txt, 0, cropLength)).append(" [...]");
+        } else {
+            sb.append(txt);
+        }
+        return String.format("@%s:%s\n%s\n#%s (%s%s) %s",
+                m.getUser().getName(), MessageUtils.getTagsString(m), sb.toString(), formatPostNumber(m), timeAgo, repliesCount, formatUrl(m));
+    }
+
+    public static String formatUrl(Message jmsg) {
+        if (MessageUtils.isReply(jmsg)) {
+            return String.format("https://juick.com/m/%d#%d", jmsg.getMid(), jmsg.getRid());
+        } else if (MessageUtils.isPM(jmsg)) {
+            return "https://juick.com/pm/inbox";
+        }
+        return  "https://juick.com/m/" + jmsg.getMid();
+    }
+
+    public static String markdownUrl(String url, String description) {
+        if (StringUtils.isNotBlank(description)) {
+            return String.format("[%s](%s)", description, url);
+        } else {
+            return url;
+        }
+    }
+
+    public static String formatPostNumber(Message jmsg) {
+        if (jmsg.getRid() > 0) {
+            return String.format("%d/%d", jmsg.getMid(), jmsg.getRid());
+        }
+        return  String.format("%d", jmsg.getMid());
+    }
+
+    public static String formatTwitterCard(Message jmsg) {
+        return MessageUtils.getMessageHashTags(jmsg) + StringUtils.defaultString(jmsg.getText());
+    }
+}
diff --git a/src/main/java/com/juick/util/xmpp/JidConverter.java b/src/main/java/com/juick/util/xmpp/JidConverter.java
new file mode 100644
index 00000000..118c6711
--- /dev/null
+++ b/src/main/java/com/juick/util/xmpp/JidConverter.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2008-2019, 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.util.xmpp;
+
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.lang.Nullable;
+import rocks.xmpp.addr.Jid;
+
+import javax.annotation.Nonnull;
+
+public class JidConverter implements Converter<String, Jid> {
+    @Nullable
+    @Override
+    public Jid convert(@Nonnull String jidStr) {
+        return Jid.of(jidStr);
+    }
+}
diff --git a/src/main/java/com/juick/util/xmpp/iq/MessageQuery.java b/src/main/java/com/juick/util/xmpp/iq/MessageQuery.java
new file mode 100644
index 00000000..c1096e8e
--- /dev/null
+++ b/src/main/java/com/juick/util/xmpp/iq/MessageQuery.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2008-2019, 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.util.xmpp.iq;
+
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement(name = "query")
+public class MessageQuery {
+    private MessageQuery() {
+
+    }
+}
diff --git a/src/main/java/com/juick/util/xmpp/iq/package-info.java b/src/main/java/com/juick/util/xmpp/iq/package-info.java
new file mode 100644
index 00000000..7a1694a5
--- /dev/null
+++ b/src/main/java/com/juick/util/xmpp/iq/package-info.java
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2008-2019, 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/>.
+ */
+
+@XmlAccessorType(XmlAccessType.FIELD)
+@XmlSchema(namespace = "http://juick.com/query#messages", elementFormDefault = XmlNsForm.QUALIFIED)
+package com.juick.util.xmpp.iq;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlNsForm;
+import javax.xml.bind.annotation.XmlSchema;
\ No newline at end of file