240 lines
9.7 KiB
Java
240 lines
9.7 KiB
Java
/*
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* DavMail POP/IMAP/SMTP/CalDav/LDAP Exchange Gateway
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* Copyright (C) 2010 Mickael Guessant
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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package davmail.exchange.ews;
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import davmail.exception.DavMailAuthenticationException;
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import davmail.exception.DavMailException;
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import davmail.exchange.ExchangeSession;
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import davmail.http.DavGatewayHttpClientFacade;
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import davmail.util.StringUtil;
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import org.apache.commons.httpclient.HttpMethod;
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import org.apache.commons.httpclient.HttpStatus;
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import org.apache.commons.httpclient.methods.HeadMethod;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* EWS Exchange adapter.
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* Compatible with Exchange 2007 and hopefully 2010.
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*/
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public class EwsExchangeSession extends ExchangeSession {
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protected class Folder extends ExchangeSession.Folder {
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public FolderId folderId;
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}
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/**
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* @inheritDoc
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*/
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public EwsExchangeSession(String url, String userName, String password) throws IOException {
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super(url, userName, password);
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}
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@Override
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protected void buildSessionInfo(HttpMethod method) throws DavMailException {
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// nothing to do, mailPath not used in EWS mode
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// check EWS access
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HttpMethod headMethod = new HeadMethod("/ews/services.wsdl");
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try {
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headMethod = DavGatewayHttpClientFacade.executeFollowRedirects(httpClient, headMethod);
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if (headMethod.getStatusCode() != HttpStatus.SC_OK) {
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throw DavGatewayHttpClientFacade.buildHttpException(headMethod);
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}
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} catch (IOException e) {
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LOGGER.error(e.getMessage());
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throw new DavMailAuthenticationException("EXCEPTION_EWS_NOT_AVAILABLE");
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} finally {
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headMethod.releaseConnection();
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}
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}
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protected class MultiCondition extends ExchangeSession.MultiCondition implements SearchExpression {
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protected MultiCondition(Operator operator, Condition... condition) {
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super(operator, condition);
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}
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@Override
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public void appendTo(StringBuilder buffer) {
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buffer.append("<t:").append(operator.toString()).append('>');
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for (Condition condition : conditions) {
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condition.appendTo(buffer);
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}
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buffer.append("</t:").append(operator.toString()).append('>');
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}
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}
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static final Map<String, FieldURI> attributeMap = new HashMap<String, FieldURI>();
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static {
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attributeMap.put("folderclass", ExtendedFieldURI.PR_CONTAINER_CLASS);
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}
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protected class AttributeCondition extends ExchangeSession.AttributeCondition implements SearchExpression {
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protected AttributeCondition(String attributeName, Operator operator, String value) {
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super(attributeName, operator, value);
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}
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@Override
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public void appendTo(StringBuilder buffer) {
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buffer.append("<t:").append(operator.toString()).append('>');
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attributeMap.get(attributeName).appendTo(buffer);
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buffer.append("<t:FieldURIOrConstant><t:Constant Value=\"");
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buffer.append(StringUtil.xmlEncode(value));
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buffer.append("\"/></t:FieldURIOrConstant>");
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buffer.append("</t:").append(operator.toString()).append('>');
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}
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}
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@Override
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protected Condition and(Condition... condition) {
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return new MultiCondition(Operator.And, condition);
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}
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@Override
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protected Condition or(Condition... condition) {
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return new MultiCondition(Operator.Or, condition);
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}
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@Override
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protected AttributeCondition equals(String attributeName, String value) {
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return new AttributeCondition(attributeName, Operator.IsEqualTo, value);
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}
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protected Folder buildFolder(EWSMethod.Item item) {
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Folder folder = new Folder();
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folder.folderId = new FolderId(item.get("FolderId"));
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folder.etag = item.get(ExtendedFieldURI.PR_LAST_MODIFICATION_TIME.getPropertyTag());
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// TODO: implement ctag
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folder.ctag = String.valueOf(System.currentTimeMillis());
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// TODO: implement contentClass, noInferiors
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folder.unreadCount = item.getInt("UnreadCount");
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folder.hasChildren = item.getInt("ChildFolderCount") != 0;
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// noInferiors not implemented
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return folder;
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}
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/**
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* @inheritDoc
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*/
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@Override
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public List<ExchangeSession.Folder> getSubFolders(String folderPath, Condition condition, boolean recursive) throws IOException {
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List<ExchangeSession.Folder> folders = new ArrayList<ExchangeSession.Folder>();
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appendSubFolders(folders, folderPath, getFolderId(folderPath), condition, recursive);
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return folders;
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}
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protected void appendSubFolders(List<ExchangeSession.Folder> folders,
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String parentFolderPath, FolderId parentFolderId,
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Condition condition, boolean recursive) throws IOException {
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FindFolderMethod findFolderMethod = new FindFolderMethod(FolderQueryTraversal.SHALLOW, BaseShape.ALL_PROPERTIES, parentFolderId);
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findFolderMethod.setSearchExpression((SearchExpression) condition);
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findFolderMethod.addAdditionalProperty(ExtendedFieldURI.PR_URL_COMP_NAME);
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findFolderMethod.addAdditionalProperty(ExtendedFieldURI.PR_LAST_MODIFICATION_TIME);
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try {
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httpClient.executeMethod(findFolderMethod);
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} finally {
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findFolderMethod.releaseConnection();
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}
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for (EWSMethod.Item item : findFolderMethod.getResponseItems()) {
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Folder folder = buildFolder(item);
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if (parentFolderPath.length() > 0) {
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folder.folderPath = parentFolderPath + '/' + item.get(ExtendedFieldURI.PR_URL_COMP_NAME.getPropertyTag());
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} else {
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folder.folderPath = item.get(ExtendedFieldURI.PR_URL_COMP_NAME.getPropertyTag());
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}
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folders.add(folder);
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if (recursive && folder.hasChildren) {
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appendSubFolders(folders, folder.folderPath, folder.folderId, condition, recursive);
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}
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}
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}
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/**
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* @inheritDoc
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*/
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@Override
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public ExchangeSession.Folder getFolder(String folderPath) throws IOException {
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GetFolderMethod getFolderMethod = new GetFolderMethod(BaseShape.ALL_PROPERTIES, getFolderId(folderPath));
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getFolderMethod.addAdditionalProperty(ExtendedFieldURI.PR_URL_COMP_NAME);
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getFolderMethod.addAdditionalProperty(ExtendedFieldURI.PR_LAST_MODIFICATION_TIME);
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//getFolderMethod.addAdditionalProperty(new ExtendedFieldURI("0x65E2", ExtendedFieldURI.PropertyType.Binary));
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//getFolderMethod.addAdditionalProperty(new ExtendedFieldURI("00062040-0000-0000-C000-000000000046", 0x8A23, ExtendedFieldURI.PropertyType.SystemTime));
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try {
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httpClient.executeMethod(getFolderMethod);
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} finally {
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getFolderMethod.releaseConnection();
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}
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EWSMethod.Item item = getFolderMethod.getResponseItem();
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Folder folder = null;
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if (item != null) {
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folder = buildFolder(item);
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folder.folderPath = folderPath;
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}
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return folder;
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}
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private FolderId getFolderId(String folderPath) throws IOException {
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FolderId currentFolderId = DistinguishedFolderId.MSGFOLDERROOT;
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String[] folderNames = folderPath.split("/");
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for (String folderName : folderNames) {
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if ("INBOX".equals(folderName)) {
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currentFolderId = DistinguishedFolderId.INBOX;
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} else if ("Sent".equals(folderName)) {
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currentFolderId = DistinguishedFolderId.SENTITEMS;
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} else if ("Drafts".equals(folderName)) {
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currentFolderId = DistinguishedFolderId.DRAFTS;
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} else if ("Trash".equals(folderName)) {
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currentFolderId = DistinguishedFolderId.DELETEDITEMS;
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} else if (folderName.length() > 0) {
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currentFolderId = getSubFolderByName(currentFolderId, folderName);
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}
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}
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return currentFolderId;
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}
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protected FolderId getSubFolderByName(FolderId parentFolderId, String folderName) throws IOException {
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FindFolderMethod findFolderMethod = new FindFolderMethod(
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FolderQueryTraversal.SHALLOW,
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BaseShape.ID_ONLY,
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parentFolderId,
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new TwoOperandExpression(TwoOperandExpression.Operator.IsEqualTo,
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ExtendedFieldURI.PR_URL_COMP_NAME, folderName)
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);
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try {
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httpClient.executeMethod(findFolderMethod);
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} finally {
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findFolderMethod.releaseConnection();
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}
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EWSMethod.Item item = findFolderMethod.getResponseItem();
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// TODO: handle not found error
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return new FolderId(item.get("FolderId"));
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}
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}
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