| commit | author | age | ||
| 831469 | 1 | /* |
| JM | 2 | * Copyright 2011 gitblit.com. |
| 3 | * | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 | * you may not use this file except in compliance with the License. | |
| 6 | * You may obtain a copy of the License at | |
| 7 | * | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 | * | |
| 10 | * Unless required by applicable law or agreed to in writing, software | |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 | * See the License for the specific language governing permissions and | |
| 14 | * limitations under the License. | |
| 15 | */ | |
| 16 | package com.gitblit; | |
| 17 | ||
| 18 | import java.util.Arrays; | |
| 19 | import java.util.Collections; | |
| 20 | import java.util.Date; | |
| 21 | import java.util.HashSet; | |
| 22 | import java.util.List; | |
| 23 | import java.util.Properties; | |
| 24 | import java.util.Queue; | |
| 25 | import java.util.Set; | |
| 26 | import java.util.concurrent.ConcurrentLinkedQueue; | |
| 27 | ||
| 28 | import javax.mail.Authenticator; | |
| 29 | import javax.mail.Message; | |
| 30 | import javax.mail.Message.RecipientType; | |
| 31 | import javax.mail.PasswordAuthentication; | |
| 32 | import javax.mail.Session; | |
| 33 | import javax.mail.Transport; | |
| 34 | import javax.mail.internet.InternetAddress; | |
| 35 | import javax.mail.internet.MimeMessage; | |
| 36 | ||
| 37 | import org.slf4j.Logger; | |
| 38 | import org.slf4j.LoggerFactory; | |
| 39 | ||
| 40 | import com.gitblit.utils.StringUtils; | |
| 41 | ||
| 42 | /** | |
| 43 | * The mail executor handles sending email messages asynchronously from queue. | |
| 44 | * | |
| 45 | * @author James Moger | |
| 46 | * | |
| 47 | */ | |
| 48 | public class MailExecutor implements Runnable { | |
| 49 | ||
| 50 | private final Logger logger = LoggerFactory.getLogger(MailExecutor.class); | |
| 51 | ||
| 52 | private final Queue<Message> queue = new ConcurrentLinkedQueue<Message>(); | |
| 53 | ||
| 54 | private final Set<Message> failures = Collections.synchronizedSet(new HashSet<Message>()); | |
| 55 | ||
| 56 | private final Session session; | |
| 57 | ||
| 58 | private final IStoredSettings settings; | |
| 59 | ||
| 60 | public MailExecutor(IStoredSettings settings) { | |
| 61 | this.settings = settings; | |
| 62 | ||
| 63 | final String mailUser = settings.getString(Keys.mail.username, null); | |
| 64 | final String mailPassword = settings.getString(Keys.mail.password, null); | |
| 65 | boolean authenticate = !StringUtils.isEmpty(mailUser) && !StringUtils.isEmpty(mailPassword); | |
| 66 | String server = settings.getString(Keys.mail.server, ""); | |
| 67 | if (StringUtils.isEmpty(server)) { | |
| 68 | session = null; | |
| 69 | return; | |
| 70 | } | |
| 71 | int port = settings.getInteger(Keys.mail.port, 25); | |
| 72 | boolean isGMail = false; | |
| 73 | if (server.equals("smtp.gmail.com")) { | |
| 74 | port = 465; | |
| 75 | isGMail = true; | |
| 76 | } | |
| 77 | ||
| 78 | Properties props = new Properties(); | |
| 79 | props.setProperty("mail.smtp.host", server); | |
| 80 | props.setProperty("mail.smtp.port", String.valueOf(port)); | |
| 81 | props.setProperty("mail.smtp.auth", String.valueOf(authenticate)); | |
| 82 | props.setProperty("mail.smtp.auths", String.valueOf(authenticate)); | |
| 83 | ||
| 84 | if (isGMail) { | |
| 85 | props.setProperty("mail.smtp.starttls.enable", "true"); | |
| 86 | props.put("mail.smtp.socketFactory.port", String.valueOf(port)); | |
| 87 | props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); | |
| 88 | props.put("mail.smtp.socketFactory.fallback", "false"); | |
| 89 | } | |
| 90 | ||
| 91 | if (!StringUtils.isEmpty(mailUser) && !StringUtils.isEmpty(mailPassword)) { | |
| 92 | // SMTP requires authentication | |
| 93 | session = Session.getInstance(props, new Authenticator() { | |
| 94 | protected PasswordAuthentication getPasswordAuthentication() { | |
| 95 | PasswordAuthentication passwordAuthentication = new PasswordAuthentication( | |
| 96 | mailUser, mailPassword); | |
| 97 | return passwordAuthentication; | |
| 98 | } | |
| 99 | }); | |
| 100 | } else { | |
| 101 | // SMTP does not require authentication | |
| 102 | session = Session.getInstance(props); | |
| 103 | } | |
| 104 | } | |
| 105 | ||
| 106 | /** | |
| 107 | * Indicates if the mail executor can send emails. | |
| 108 | * | |
| 109 | * @return true if the mail executor is ready to send emails | |
| 110 | */ | |
| 111 | public boolean isReady() { | |
| 112 | return session != null; | |
| 113 | } | |
| 114 | ||
| 115 | /** | |
| 116 | * Creates a message for the administrators. | |
| 117 | * | |
| 118 | * @returna message | |
| 119 | */ | |
| 120 | public Message createMessageForAdministrators() { | |
| 121 | List<String> toAddresses = settings.getStrings(Keys.mail.adminAddresses); | |
| 122 | if (toAddresses.size() == 0) { | |
| 123 | logger.warn("Can not notify administrators because no email addresses are defined!"); | |
| 124 | return null; | |
| 125 | } | |
| 126 | return createMessage(toAddresses); | |
| 127 | } | |
| 128 | ||
| 129 | /** | |
| 130 | * Create a message. | |
| 131 | * | |
| 132 | * @param toAddresses | |
| 133 | * @return a message | |
| 134 | */ | |
| 135 | public Message createMessage(String... toAddresses) { | |
| 136 | return createMessage(Arrays.asList(toAddresses)); | |
| 137 | } | |
| 138 | ||
| 139 | /** | |
| 140 | * Create a message. | |
| 141 | * | |
| 142 | * @param toAddresses | |
| 143 | * @return a message | |
| 144 | */ | |
| 145 | public Message createMessage(List<String> toAddresses) { | |
| 146 | MimeMessage message = new MimeMessage(session); | |
| 147 | try { | |
| 148 | InternetAddress from = new InternetAddress(settings.getString(Keys.mail.fromAddress, | |
| 149 | "gitblit@gitblit.com"), "Gitblit"); | |
| 150 | message.setFrom(from); | |
| 151 | ||
| 152 | InternetAddress[] tos = new InternetAddress[toAddresses.size()]; | |
| 153 | for (int i = 0; i < toAddresses.size(); i++) { | |
| 154 | tos[i] = new InternetAddress(toAddresses.get(i)); | |
| 155 | } | |
| 156 | message.setRecipients(Message.RecipientType.TO, tos); | |
| 157 | message.setSentDate(new Date()); | |
| 158 | } catch (Exception e) { | |
| 159 | logger.error("Failed to properly create message", e); | |
| 160 | } | |
| 161 | return message; | |
| 162 | } | |
| 163 | ||
| 164 | /** | |
| 165 | * Queue's an email message to be sent. | |
| 166 | * | |
| 167 | * @param message | |
| 168 | * @return true if the message was queued | |
| 169 | */ | |
| 170 | public boolean queue(Message message) { | |
| 171 | if (!isReady()) { | |
| 172 | return false; | |
| 173 | } | |
| 174 | try { | |
| 175 | message.saveChanges(); | |
| 176 | } catch (Throwable t) { | |
| 177 | logger.error("Failed to save changes to message!", t); | |
| 178 | } | |
| 179 | queue.add(message); | |
| 180 | return true; | |
| 181 | } | |
| 182 | ||
| 183 | @Override | |
| 184 | public void run() { | |
| 185 | if (!queue.isEmpty()) { | |
| 186 | if (session != null) { | |
| 187 | // send message via mail server | |
| 188 | Message message = null; | |
| 189 | while ((message = queue.peek()) != null) { | |
| 190 | try { | |
| 191 | if (settings.getBoolean(Keys.mail.debug, false)) { | |
| 192 | logger.info("send: " | |
| 193 | + StringUtils.trimString( | |
| 194 | message.getSubject() | |
| 195 | + " => " | |
| 196 | + message.getRecipients(RecipientType.TO)[0] | |
| 197 | .toString(), 60)); | |
| 198 | } | |
| 199 | Transport.send(message); | |
| 200 | queue.remove(); | |
| 201 | failures.remove(message); | |
| 202 | } catch (Throwable e) { | |
| 203 | if (!failures.contains(message)) { | |
| 204 | logger.error("Failed to send message", e); | |
| 205 | failures.add(message); | |
| 206 | } | |
| 207 | } | |
| 208 | } | |
| 209 | } | |
| 210 | } else { | |
| 211 | // log message to console and drop | |
| 212 | if (!queue.isEmpty()) { | |
| 213 | Message message = null; | |
| 214 | while ((message = queue.peek()) != null) { | |
| 215 | try { | |
| 216 | logger.info("drop: " | |
| 217 | + StringUtils.trimString( | |
| 218 | (message.getSubject()) | |
| 219 | + " => " | |
| 220 | + message.getRecipients(RecipientType.TO)[0] | |
| 221 | .toString(), 60)); | |
| 222 | queue.remove(); | |
| 223 | failures.remove(message); | |
| 224 | } catch (Throwable e) { | |
| 225 | if (!failures.contains(message)) { | |
| 226 | logger.error("Failed to remove message from queue"); | |
| 227 | failures.add(message); | |
| 228 | } | |
| 229 | } | |
| 230 | } | |
| 231 | } | |
| 232 | } | |
| 233 | } | |
| 234 | } | |
