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Code Issues Releases Wiki Activity

EWS: implement autodiscover to find actual EWS endpoint url

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git-svn-id: http://svn.code.sf.net/p/davmail/code/trunk@1390 3d1905a2-6b24-0410-a738-b14d5a86fcbd
This commit is contained in:
mguessan 2010-08-26 14:12:57 +00:00
parent 7a2c601859
commit f8975c9767
1 changed files with 88 additions and 12 deletions
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100
src/java/davmail/exchange/ews/EwsExchangeSession.java
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@ -27,9 +27,10 @@ import davmail.http.DavGatewayHttpClientFacade;
import davmail.util.IOUtil;
import davmail.util.StringUtil;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.*;
import org.apache.commons.httpclient.methods.ByteArrayRequestEntity;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
@ -80,6 +81,13 @@ public class EwsExchangeSession extends ExchangeSession {
@Override
protected void buildSessionInfo(HttpMethod method) throws DavMailException {
// also need to retrieve email and alias
getEmailAndAliasFromOptions();
if (email == null || alias == null) {
throw new DavMailAuthenticationException("EXCEPTION_EWS_NOT_AVAILABLE");
}
currentMailboxPath = "/users/" + email.toLowerCase();
// nothing to do, mailPath not used in EWS mode
// check EWS access
HttpMethod getMethod = new GetMethod("/ews/exchange.asmx");
@ -90,19 +98,21 @@ public class EwsExchangeSession extends ExchangeSession {
throw DavGatewayHttpClientFacade.buildHttpException(getMethod);
}
} catch (IOException e) {
LOGGER.error(e.getMessage());
throw new DavMailAuthenticationException("EXCEPTION_EWS_NOT_AVAILABLE");
LOGGER.debug(e.getMessage());
try {
// failover, try to retrieve EWS url from autodiscover
getMethod.releaseConnection();
getMethod = new GetMethod(getEwsUrlFromAutoDiscover());
getMethod.setFollowRedirects(false);
} catch (IOException e2) {
LOGGER.error(e2.getMessage());
throw new DavMailAuthenticationException("EXCEPTION_EWS_NOT_AVAILABLE");
}
} finally {
getMethod.releaseConnection();
}
// also need to retrieve email and alias
getEmailAndAliasFromOptions();
if (email == null || alias == null) {
throw new DavMailAuthenticationException("EXCEPTION_EWS_NOT_AVAILABLE");
}
currentMailboxPath = "/users/" + email.toLowerCase();
try {
folderIdMap = new HashMap<String, String>();
// load actual well known folder ids
@ -121,6 +131,72 @@ public class EwsExchangeSession extends ExchangeSession {
}
protected static class AutoDiscoverMethod extends PostMethod {
AutoDiscoverMethod(String userEmail) {
super("/autodiscover/autodiscover.xml");
String body = "<Autodiscover xmlns=\"http://schemas.microsoft.com/exchange/autodiscover/outlook/requestschema/2006\">" +
"<Request>" +
"<EMailAddress>" + userEmail + "</EMailAddress>" +
"<AcceptableResponseSchema>http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a</AcceptableResponseSchema>" +
"</Request>" +
"</Autodiscover>";
setRequestEntity(new ByteArrayRequestEntity(body.getBytes(), "text/xml"));
}
String ewsUrl;
@Override
protected void processResponseBody(HttpState httpState, HttpConnection httpConnection) {
Header contentTypeHeader = getResponseHeader("Content-Type");
if (contentTypeHeader != null && "text/xml; charset=utf-8".equals(contentTypeHeader.getValue())) {
BufferedReader autodiscoverReader = null;
try {
autodiscoverReader = new BufferedReader(new InputStreamReader(getResponseBodyAsStream()));
String line;
// find ews url
while ((line = autodiscoverReader.readLine()) != null
&& (line.indexOf("<EwsUrl>") == -1)
&& (line.indexOf("</EwsUrl>") == -1)) {
}
if (line != null) {
ewsUrl = line.substring(line.indexOf("<EwsUrl>") + 8, line.indexOf("</EwsUrl>"));
}
} catch (IOException e) {
LOGGER.debug(e);
} finally {
if (autodiscoverReader != null) {
try {
autodiscoverReader.close();
} catch (IOException e) {
LOGGER.debug(e);
}
}
}
}
}
}
protected String getEwsUrlFromAutoDiscover() throws DavMailAuthenticationException {
String ewsUrl;
AutoDiscoverMethod autoDiscoverMethod = new AutoDiscoverMethod(email);
try {
int status = DavGatewayHttpClientFacade.executeNoRedirect(httpClient, autoDiscoverMethod);
if (status != HttpStatus.SC_OK) {
throw DavGatewayHttpClientFacade.buildHttpException(autoDiscoverMethod);
}
ewsUrl = autoDiscoverMethod.ewsUrl;
if (ewsUrl == null) {
throw new IOException("Ews url not found");
}
} catch (IOException e) {
LOGGER.error(e.getMessage());
throw new DavMailAuthenticationException("EXCEPTION_EWS_NOT_AVAILABLE");
} finally {
autoDiscoverMethod.releaseConnection();
}
return ewsUrl;
}
class Message extends ExchangeSession.Message {
// message item id
ItemId itemId;
@ -172,7 +248,7 @@ public class EwsExchangeSession extends ExchangeSession {
public void createMessage(String folderPath, String messageName, HashMap<String, String> properties, MimeMessage mimeMessage) throws IOException {
EWSMethod.Item item = new EWSMethod.Item();
item.type = "Message";
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
mimeMessage.writeTo(baos);
} catch (MessagingException e) {