com.glaf.mail.MxMailHelper.java Source code

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Here is the source code for com.glaf.mail.MxMailHelper.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.glaf.mail;

import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;

import javax.mail.Multipart;
import javax.mail.Part;
import javax.mail.Session;
import javax.mail.internet.MimeMessage;

import org.apache.commons.lang3.StringUtils;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import com.glaf.core.config.MailProperties;
import com.glaf.core.util.FileUtils;
import com.glaf.template.Template;

public class MxMailHelper {

    public final static String TEXT_PLAIN = "text/plain";

    public final static String TEXT_HTML = "text/html";

    public final static String MULTIPART = "multipart/*";

    public String getCallbackHref(String messageId) {
        String callbackUrl = MailProperties.getString("mail.callback.url");
        return this.getCallbackHref(callbackUrl, messageId);
    }

    public String getCallbackHref(Template template, String messageId) {
        if (template != null && StringUtils.isNotEmpty(template.getCallbackUrl())) {
            return this.getCallbackHref(template.getCallbackUrl(), messageId);
        }
        return this.getCallbackHref(messageId);
    }

    public String getCallbackHref(String callbackUrl, String messageId) {
        return callbackUrl + "?messageId=" + messageId;
    }

    public String embedCallbackScript(String html, String href) {
        StringBuffer buffer = new StringBuffer();
        String temp = html.toLowerCase();
        int fromIndex = temp.indexOf("<body");
        if (fromIndex != -1) {
            int endIndex = temp.indexOf(">", fromIndex);
            buffer.append(html.substring(0, endIndex + 1));
            buffer.append("\n<img src=\"").append(href).append("\" width=\"1\" height=\"1\"/>");
            buffer.append(html.substring(endIndex + 1, html.length()));
        } else {
            buffer.append(html);
            buffer.append("\n<img src=\"").append(href).append("\" width=\"1\" height=\"1\"/>");
        }
        return buffer.toString();
    }

    public Mail getMail(byte[] bytes) {
        InputStream inputStream = null;
        try {
            inputStream = new ByteArrayInputStream(bytes);
            return this.getMail(inputStream);
        } catch (Exception ex) {
            throw new RuntimeException(ex);
        } finally {
            try {
                if (inputStream != null) {
                    inputStream.close();
                }
            } catch (IOException ex) {
            }
        }
    }

    public Mail getMail(InputStream inputStream) {
        try {
            Properties props = new Properties();
            props.put("mail.pop3.host", "abcd.com");
            Session session = Session.getInstance(props);
            MimeMessage mimeMessage = new MimeMessage(session, inputStream);
            Object body = mimeMessage.getContent();
            Mail mail = new Mail();
            if (body instanceof Multipart) {
                processMultipart((Multipart) body, mail);
            } else {
                processPart(mimeMessage, mail);
            }
            return mail;
        } catch (Exception ex) {
            throw new RuntimeException(ex);
        }
    }

    public void processPart(Part p, Mail mail) throws Exception {
        String contentType = p.getContentType();
        InputStream inputStream = null;
        try {
            inputStream = new BufferedInputStream(p.getInputStream());
            if (contentType.startsWith("text/html")) {
                byte[] content = FileUtils.getBytes(inputStream);
                if (content != null && content.length > 0) {
                    String html = new String(content);
                    mail.setContent(html);
                    mail.setMailType(TEXT_HTML);
                }
            } else if (contentType.startsWith("text/plain")) {
                byte[] content = FileUtils.getBytes(inputStream);
                if (content != null && content.length > 0) {
                    mail.setContent(new String(content));
                    mail.setMailType(TEXT_PLAIN);
                }
            } else if (contentType.startsWith("multipart") || contentType.startsWith("application/octet-stream")) {
                Multipart mp = (Multipart) p.getContent();
                processMultipart(mp, mail);
            }
        } catch (Exception ex) {
            throw ex;
        } finally {
            try {
                if (inputStream != null) {
                    inputStream.close();
                }
            } catch (IOException ex) {
            }
        }

    }

    public void processMultipart(Multipart mp, Mail mail) throws Exception {
        for (int i = 0; i < mp.getCount(); i++) {
            String filename = (mp.getBodyPart(i)).getFileName();
            if (filename == null) {
                this.processPart(mp.getBodyPart(i), mail);
            }
        }
    }

    public Map<String, String> getAttributes(String attribute) {
        Map<String, String> dataMap = new java.util.HashMap<String, String>();
        StringReader stringReader = new StringReader(attribute);
        SAXReader xmlReader = new SAXReader();
        try {
            Document doc = xmlReader.read(stringReader);
            Element root = doc.getRootElement();
            List<?> elements = root.elements("element");
            if (elements != null && elements.size() > 0) {
                Iterator<?> iterator = elements.iterator();
                while (iterator.hasNext()) {
                    Element element = (Element) iterator.next();
                    String name = element.attributeValue("name");
                    String value = element.attributeValue("value");
                    if (StringUtils.isEmpty(value)) {
                        value = element.getStringValue();
                    }
                    dataMap.put(name, value);
                }
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return dataMap;
    }

}