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autodiscover / POST

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This commit is contained in:
Peter Hormanns 2019-12-06 19:02:08 +01:00
parent 436e2b859a
commit b4b27bda7d
1 changed files with 96 additions and 10 deletions
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104
hsarback/src/de/hsadmin/autoconfig/AutoconfigAutodiscoverServlet.java
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@ -5,6 +5,7 @@ import java.io.IOException;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@ -21,10 +22,11 @@ import org.apache.commons.httpclient.HttpStatus;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import de.hsadmin.core.model.HSAdminException;
import de.hsadmin.core.model.Transaction;
import de.hsadmin.core.util.IPv6Trick;
import de.hsadmin.mods.email.EMailAddress;
import de.hsadmin.mods.user.UnixUser;
@ -92,14 +94,98 @@ public class AutoconfigAutodiscoverServlet extends HttpServlet {
*/
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
final String remoteAddr = req.getRemoteAddr();
if (!IPv6Trick.isKnownRemote(remoteAddr)) {
resp.sendError(HttpStatus.SC_UNAUTHORIZED);
final ServletInputStream xmlInputStream = req.getInputStream();
try {
String emailAddr = "";
final DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = builderFactory.newDocumentBuilder();
final Document requestDocument = builder.parse(xmlInputStream);
final Element documentElement = requestDocument.getDocumentElement();
documentElement.normalize();
final NodeList emailAddressNodeList = documentElement.getElementsByTagName("EMailAddress");
if (emailAddressNodeList.getLength() == 1) {
emailAddr = emailAddressNodeList.item(0).getTextContent().trim();
}
final String[] addrParts = emailAddr.split("@");
if (addrParts.length != 2) {
resp.sendError(HttpStatus.SC_BAD_REQUEST);
return;
}
String uniqueMailbox = null;
try {
uniqueMailbox = getUniqueMailbox(emailAddr);
} catch (HSAdminException e) {
throw new ServletException(e);
}
final Document document = buildAutodiscoverDocument(builderFactory, uniqueMailbox);
serializeDocument(document, resp);
} catch (ParserConfigurationException e) {
throw new ServletException(e);
} catch (SAXException e) {
throw new ServletException(e);
}
}
private Element appendElementWithAttribute(final Document document, final Element parent,
// public static void main(String[] args) {
// final DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
// final String mbox = "xyz00-test";
// try {
// final Document document = buildAutodiscoverDocument(builderFactory, mbox);
// final TransformerFactory transformerFactory = TransformerFactory.newInstance();
// final Transformer transformer = transformerFactory.newTransformer();
// transformer.transform(new DOMSource(document), new StreamResult(System.out));
// } catch (ParserConfigurationException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// } catch (TransformerException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
// }
private static Document buildAutodiscoverDocument(final DocumentBuilderFactory builderFactory, String uniqueMailbox)
throws ParserConfigurationException {
DocumentBuilder builder;
final String pacName = uniqueMailbox.substring(0, 5);
final String pacDomain = pacName + ".hostsharing.net";
final String userName = uniqueMailbox;
builder = builderFactory.newDocumentBuilder();
final Document document = builder.newDocument();
final Element autodiscover = document.createElementNS("http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006", "Autodiscover");
document.appendChild(autodiscover);
final Element response = document.createElementNS("http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a", "Response");
autodiscover.appendChild(response);
final Element user = document.createElement("User");
response.appendChild(user);
appendElementWithText(document, user, "DisplayName", pacDomain);
final Element account = document.createElement("Account");
response.appendChild(account);
appendElementWithText(document, account, "AccountType", "email");
appendElementWithText(document, account, "Action", "settings");
final Element protocolIMAP = document.createElement("Protocol");
account.appendChild(protocolIMAP);
appendElementWithText(document, protocolIMAP, "Type", "IMAP");
appendElementWithText(document, protocolIMAP, "Server", pacDomain);
appendElementWithText(document, protocolIMAP, "Port", "993");
appendElementWithText(document, protocolIMAP, "DomainRequired", "off");
appendElementWithText(document, protocolIMAP, "SPA", "off");
appendElementWithText(document, protocolIMAP, "SSL", "on");
appendElementWithText(document, protocolIMAP, "AuthRequired", "on");
appendElementWithText(document, protocolIMAP, "LoginName", userName);
final Element protocolSMTP = document.createElement("Protocol");
account.appendChild(protocolSMTP);
appendElementWithText(document, protocolSMTP, "Type", "SMTP");
appendElementWithText(document, protocolSMTP, "Server", pacDomain);
appendElementWithText(document, protocolSMTP, "Port", "465");
appendElementWithText(document, protocolSMTP, "DomainRequired", "off");
appendElementWithText(document, protocolSMTP, "SPA", "off");
appendElementWithText(document, protocolSMTP, "SSL", "on");
appendElementWithText(document, protocolSMTP, "AuthRequired", "on");
appendElementWithText(document, protocolSMTP, "LoginName", userName);
return document;
}
private static Element appendElementWithAttribute(final Document document, final Element parent,
final String childElementName, final String attributeName, final String attributeValue) {
final Element child = document.createElement(childElementName);
child.setAttribute(attributeName, attributeValue);
@ -107,7 +193,7 @@ public class AutoconfigAutodiscoverServlet extends HttpServlet {
return child;
}
private Element appendElementWithText(final Document document, final Element parent,
private static Element appendElementWithText(final Document document, final Element parent,
final String childElementName, final String text) {
final Element child = document.createElement(childElementName);
parent.appendChild(child);
@ -115,12 +201,12 @@ public class AutoconfigAutodiscoverServlet extends HttpServlet {
return child;
}
private void serializeDocument(final Document document, final HttpServletResponse resp)
private static void serializeDocument(final Document document, final HttpServletResponse resp)
throws ServletException {
resp.setContentType("text/xml");
try {
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
final TransformerFactory transformerFactory = TransformerFactory.newInstance();
final Transformer transformer = transformerFactory.newTransformer();
transformer.transform(new DOMSource(document), new StreamResult(resp.getOutputStream()));
} catch (TransformerException e) {
throw new ServletException(e);