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Code Issues Packages Projects Releases Wiki Activity

Added Microsoft auto discovery

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M66B
2023-06-14 10:07:35 +02:00
parent 3db629e3ef
commit 2d7a53299d
4 changed files with 326 additions and 1 deletions
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164
app/src/main/java/eu/faircode/email/EmailProvider.java
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@@ -22,6 +22,7 @@ package eu.faircode.email;
import static android.system.OsConstants.ECONNREFUSED;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Parcel;
import android.os.Parcelable;
import android.system.ErrnoException;
@@ -29,6 +30,7 @@ import android.text.TextUtils;
import android.util.Xml;
import androidx.annotation.NonNull;
import androidx.preference.PreferenceManager;
import com.sun.mail.util.LineInputStream;
@@ -112,6 +114,7 @@ public class EmailProvider implements Parcelable {
private static final int SCAN_TIMEOUT = 10 * 1000; // milliseconds
private static final int ISPDB_TIMEOUT = 10 * 1000; // milliseconds
private static final int MS_TIMEOUT = 10 * 1000; // milliseconds
private static final List<String> PROPRIETARY = Collections.unmodifiableList(Arrays.asList(
"protonmail.ch",
@@ -627,6 +630,14 @@ public class EmailProvider implements Parcelable {
Log.w(ex);
}
try {
// Check Microsoft auto discovery
Log.i("Provider from MS domain=" + domain);
result.add(fromMSAutodiscovery(context, domain, email, intf));
} catch (Throwable ex) {
Log.w(ex);
}
try {
// Scan ports
Log.i("Provider from scan domain=" + domain);
@@ -858,6 +869,159 @@ public class EmailProvider implements Parcelable {
}
}
@NonNull
private static EmailProvider fromMSAutodiscovery(Context context, String domain, String email, IDiscovery intf) throws Throwable {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
boolean open_safe = prefs.getBoolean("open_safe", false);
// https://learn.microsoft.com/en-us/Exchange/architecture/client-access/autodiscover
// https://github.com/gronke/email-autodiscover/blob/master/mail/autodiscover.xml
for (String link : Misc.getMSUrls(context, domain, email))
try {
URL url = new URL(link);
return getMSAutodiscovery(context, domain, url, !open_safe, intf);
} catch (Throwable ex) {
Log.i(ex);
}
throw new UnknownHostException(domain);
}
private static EmailProvider getMSAutodiscovery(Context context, String domain, URL url, boolean unsafe, IDiscovery intf) throws IOException, XmlPullParserException {
EmailProvider provider = new EmailProvider(domain);
HttpURLConnection request = null;
try {
Log.i("Fetching " + url);
intf.onStatus("MS " + url);
request = (HttpURLConnection) url.openConnection();
request.setRequestMethod("GET");
request.setReadTimeout(MS_TIMEOUT);
request.setConnectTimeout(MS_TIMEOUT);
request.setDoInput(true);
ConnectionHelper.setUserAgent(context, request);
if (unsafe && request instanceof HttpsURLConnection) {
((HttpsURLConnection) request).setHostnameVerifier(new HostnameVerifier() {
@Override
public boolean verify(String hostname, SSLSession session) {
return true;
}
});
}
request.connect();
int status = request.getResponseCode();
if (status != HttpURLConnection.HTTP_OK)
throw new FileNotFoundException("Error " + status + ": " + request.getResponseMessage());
// https://developer.android.com/reference/org/xmlpull/v1/XmlPullParser
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
XmlPullParser xml = factory.newPullParser();
xml.setInput(new InputStreamReader(request.getInputStream()));
EntityLog.log(context, "Parsing " + url);
boolean isAccount = false;
boolean isEmail = false;
boolean isSettings = false;
boolean isProtocol = false;
boolean isImap = false;
boolean isSmtp = false;
String host = null;
Integer port = null;
int eventType = xml.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
if (eventType == XmlPullParser.START_TAG) {
String name = xml.getName();
if ("Account".equals(name)) {
// <AccountType>email</AccountType>
isAccount = true;
} else if ("AccountType".equals(name) && isAccount) {
// <AccountType>email</AccountType>
eventType = xml.next();
if (eventType == XmlPullParser.TEXT && "email".equals(xml.getText()))
isEmail = true;
continue;
} else if ("Action".equals(name) && isAccount) {
// <Action>settings</Action>
eventType = xml.next();
if (eventType == XmlPullParser.TEXT && "settings".equals(xml.getText()))
isSettings = true;
continue;
} else if ("Protocol".equals(name) && isAccount) {
// <AccountType>email</AccountType>
isProtocol = true;
} else if (isAccount && isEmail && isSettings && isProtocol) {
if ("Type".equals(name)) {
// <AccountType>email</AccountType>
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String type = xml.getText();
if ("IMAP".equals(type))
isImap = true;
else if ("SMTP".equals(type))
isSmtp = true;
}
continue;
} else if ("Server".equals(name)) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT)
host = xml.getText();
continue;
} else if ("Port".equals(name)) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String p = xml.getText();
if (TextUtils.isDigitsOnly(p))
port = Integer.parseInt(p);
}
continue;
}
}
} else if (eventType == XmlPullParser.END_TAG) {
String name = xml.getName();
if ("Account".equals(name)) {
isAccount = false;
isEmail = false;
isSettings = false;
} else if ("Protocol".equals(name)) {
if (isProtocol && host != null && port != null) {
if (isImap) {
provider.imap.score = 20;
provider.imap.host = host;
provider.imap.port = port;
provider.imap.starttls = (provider.imap.port == 143);
} else if (isSmtp) {
provider.smtp.score = 20;
provider.smtp.host = host;
provider.smtp.port = port;
provider.smtp.starttls = (provider.smtp.port == 587);
}
}
isProtocol = false;
isImap = false;
isSmtp = false;
host = null;
port = null;
}
}
eventType = xml.next();
}
provider.validate();
Log.e("MS=" + url);
return provider;
} finally {
if (request != null)
request.disconnect();
}
}
@NonNull
private static EmailProvider fromDNS(Context context, String domain, Discover discover, IDiscovery intf) throws UnknownHostException {
// https://tools.ietf.org/html/rfc6186