Source Code Cross Referenced for IsInWhiteList.java in  » Web-Mail » james-2.3.1 » org » apache » james » transport » matchers » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Mail » james 2.3.1 » org.apache.james.transport.matchers 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /****************************************************************
002:         * Licensed to the Apache Software Foundation (ASF) under one   *
003:         * or more contributor license agreements.  See the NOTICE file *
004:         * distributed with this work for additional information        *
005:         * regarding copyright ownership.  The ASF licenses this file   *
006:         * to you under the Apache License, Version 2.0 (the            *
007:         * "License"); you may not use this file except in compliance   *
008:         * with the License.  You may obtain a copy of the License at   *
009:         *                                                              *
010:         *   http://www.apache.org/licenses/LICENSE-2.0                 *
011:         *                                                              *
012:         * Unless required by applicable law or agreed to in writing,   *
013:         * software distributed under the License is distributed on an  *
014:         * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
015:         * KIND, either express or implied.  See the License for the    *
016:         * specific language governing permissions and limitations      *
017:         * under the License.                                           *
018:         ****************************************************************/package org.apache.james.transport.matchers;
019:
020:        import org.apache.mailet.*;
021:
022:        import org.apache.avalon.cornerstone.services.datasources.*;
023:        import org.apache.avalon.excalibur.datasource.*;
024:        import org.apache.avalon.framework.service.*;
025:
026:        import org.apache.james.*;
027:        import org.apache.james.core.*;
028:        import org.apache.james.services.*;
029:        import org.apache.james.util.*;
030:
031:        import javax.mail.*;
032:        import javax.mail.internet.*;
033:
034:        import java.util.Collection;
035:        import java.util.StringTokenizer;
036:
037:        import java.sql.*;
038:        import java.util.*;
039:        import java.text.*;
040:        import java.io.*;
041:
042:        /**
043:         * <P>Matches recipients having the mail sender in the recipient's private whitelist .</P>
044:         * <P> The recipient name is always converted to its primary name (handling aliases).</P>
045:         * <P>Configuration string: The database name containing the white list table.</P>
046:         * <P>Example:</P>
047:         * <PRE><CODE>
048:         *    &lt;mailet match="IsInWhiteList=db://maildb" class="ToProcessor"&gt;
049:         *       &lt;processor&gt; transport &lt;/processor&gt;
050:         *    &lt;/mailet&gt;
051:         * </CODE></PRE>
052:         * @see org.apache.james.transport.mailets.WhiteListManager
053:         * @version SVN $Revision: $ $Date: $
054:         * @since 2.3.0
055:         */
056:        public class IsInWhiteList extends GenericMatcher {
057:
058:            private String selectByPK;
059:
060:            private DataSourceComponent datasource;
061:
062:            /** The store containing the local user repository. */
063:            private UsersStore usersStore;
064:
065:            /** The user repository for this mail server.  Contains all the users with inboxes
066:             * on this server.
067:             */
068:            private UsersRepository localusers;
069:
070:            /**
071:             * The JDBCUtil helper class
072:             */
073:            private final JDBCUtil theJDBCUtil = new JDBCUtil() {
074:                protected void delegatedLog(String logString) {
075:                    log("IsInWhiteList: " + logString);
076:                }
077:            };
078:
079:            /**
080:             * Contains all of the sql strings for this component.
081:             */
082:            private SqlResources sqlQueries = new SqlResources();
083:
084:            /**
085:             * Holds value of property sqlFile.
086:             */
087:            private File sqlFile;
088:
089:            /**
090:             * Holds value of property sqlParameters.
091:             */
092:            private Map sqlParameters = new HashMap();
093:
094:            /**
095:             * Getter for property sqlParameters.
096:             * @return Value of property sqlParameters.
097:             */
098:            private Map getSqlParameters() {
099:
100:                return this .sqlParameters;
101:            }
102:
103:            /**
104:             * Setter for property sqlParameters.
105:             * @param sqlParameters New value of property sqlParameters.
106:             */
107:            private void setSqlParameters(Map sqlParameters) {
108:
109:                this .sqlParameters = sqlParameters;
110:            }
111:
112:            public void init() throws javax.mail.MessagingException {
113:                String repositoryPath = null;
114:                StringTokenizer st = new StringTokenizer(getCondition(),
115:                        ", \t", false);
116:                if (st.hasMoreTokens()) {
117:                    repositoryPath = st.nextToken().trim();
118:                }
119:                if (repositoryPath != null) {
120:                    log("repositoryPath: " + repositoryPath);
121:                } else {
122:                    throw new MessagingException("repositoryPath is null");
123:                }
124:
125:                ServiceManager serviceManager = (ServiceManager) getMailetContext()
126:                        .getAttribute(Constants.AVALON_COMPONENT_MANAGER);
127:
128:                try {
129:                    // Get the DataSourceSelector block
130:                    DataSourceSelector datasources = (DataSourceSelector) serviceManager
131:                            .lookup(DataSourceSelector.ROLE);
132:                    // Get the data-source required.
133:                    int stindex = repositoryPath.indexOf("://") + 3;
134:                    String datasourceName = repositoryPath.substring(stindex);
135:                    datasource = (DataSourceComponent) datasources
136:                            .select(datasourceName);
137:                } catch (Exception e) {
138:                    throw new MessagingException("Can't get datasource", e);
139:                }
140:
141:                try {
142:                    // Get the UsersRepository
143:                    usersStore = (UsersStore) serviceManager
144:                            .lookup(UsersStore.ROLE);
145:                    localusers = (UsersRepository) usersStore
146:                            .getRepository("LocalUsers");
147:                } catch (Exception e) {
148:                    throw new MessagingException(
149:                            "Can't get the local users repository", e);
150:                }
151:
152:                try {
153:                    initSqlQueries(datasource.getConnection(),
154:                            getMailetContext());
155:                } catch (Exception e) {
156:                    throw new MessagingException(
157:                            "Exception initializing queries", e);
158:                }
159:
160:                selectByPK = sqlQueries.getSqlString("selectByPK", true);
161:            }
162:
163:            public Collection match(Mail mail) throws MessagingException {
164:                // check if it's a local sender
165:                MailAddress senderMailAddress = mail.getSender();
166:                if (senderMailAddress == null) {
167:                    return null;
168:                }
169:                String senderUser = senderMailAddress.getUser();
170:                String senderHost = senderMailAddress.getHost();
171:                if (getMailetContext().isLocalServer(senderHost)
172:                        && getMailetContext().isLocalUser(senderUser)) {
173:                    // is a local sender, so return
174:                    return null;
175:                }
176:
177:                senderUser = senderUser.toLowerCase(Locale.US);
178:                senderHost = senderHost.toLowerCase(Locale.US);
179:
180:                Collection recipients = mail.getRecipients();
181:
182:                Collection inWhiteList = new java.util.HashSet();
183:
184:                Connection conn = null;
185:                PreparedStatement selectStmt = null;
186:                ResultSet selectRS = null;
187:                try {
188:
189:                    for (Iterator i = recipients.iterator(); i.hasNext();) {
190:                        try {
191:                            MailAddress recipientMailAddress = (MailAddress) i
192:                                    .next();
193:                            String recipientUser = recipientMailAddress
194:                                    .getUser().toLowerCase(Locale.US);
195:                            String recipientHost = recipientMailAddress
196:                                    .getHost().toLowerCase(Locale.US);
197:
198:                            if (!getMailetContext()
199:                                    .isLocalServer(recipientHost)) {
200:                                // not a local recipient, so skip
201:                                continue;
202:                            }
203:
204:                            recipientUser = getPrimaryName(recipientUser);
205:
206:                            if (conn == null) {
207:                                conn = datasource.getConnection();
208:                            }
209:
210:                            if (selectStmt == null) {
211:                                selectStmt = conn.prepareStatement(selectByPK);
212:                            }
213:                            selectStmt.setString(1, recipientUser);
214:                            selectStmt.setString(2, recipientHost);
215:                            selectStmt.setString(3, senderUser);
216:                            selectStmt.setString(4, senderHost);
217:                            selectRS = selectStmt.executeQuery();
218:                            if (selectRS.next()) {
219:                                //This address was already in the list
220:                                inWhiteList.add(recipientMailAddress);
221:                            }
222:
223:                        } finally {
224:                            theJDBCUtil.closeJDBCResultSet(selectRS);
225:                        }
226:
227:                    }
228:
229:                    return inWhiteList;
230:
231:                } catch (SQLException sqle) {
232:                    log("Error accessing database", sqle);
233:                    throw new MessagingException("Exception thrown", sqle);
234:                } finally {
235:                    theJDBCUtil.closeJDBCStatement(selectStmt);
236:                    theJDBCUtil.closeJDBCConnection(conn);
237:                }
238:            }
239:
240:            /** Gets the main name of a local customer, handling alias */
241:            private String getPrimaryName(String originalUsername) {
242:                String username;
243:                try {
244:                    username = localusers.getRealName(originalUsername);
245:                    JamesUser user = (JamesUser) localusers
246:                            .getUserByName(username);
247:                    if (user.getAliasing()) {
248:                        username = user.getAlias();
249:                    }
250:                } catch (Exception e) {
251:                    username = originalUsername;
252:                }
253:                return username;
254:            }
255:
256:            /**
257:             * Initializes the sql query environment from the SqlResources file.
258:             * Will look for conf/sqlResources.xml.
259:             * Will <I>not</I> create the database resources, if missing
260:             * (this task is done, if needed, in the {@link WhiteListManager}
261:             * initialization routine).
262:             * @param conn The connection for accessing the database
263:             * @param mailetContext The current mailet context,
264:             * for finding the conf/sqlResources.xml file
265:             * @throws Exception If any error occurs
266:             */
267:            public void initSqlQueries(Connection conn,
268:                    org.apache.mailet.MailetContext mailetContext)
269:                    throws Exception {
270:                try {
271:                    if (conn.getAutoCommit()) {
272:                        conn.setAutoCommit(false);
273:                    }
274:
275:                    this .sqlFile = new File((String) mailetContext
276:                            .getAttribute("confDir"), "sqlResources.xml")
277:                            .getCanonicalFile();
278:                    sqlQueries.init(this .sqlFile, "WhiteList", conn,
279:                            getSqlParameters());
280:
281:                } finally {
282:                    theJDBCUtil.closeJDBCConnection(conn);
283:                }
284:            }
285:
286:        }
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