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Added status to server scan

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M66B
2023-01-01 13:29:45 +01:00
parent 5ff4db1f82
commit 9cd9032fe5
3 changed files with 68 additions and 24 deletions
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55
app/src/main/java/eu/faircode/email/EmailProvider.java
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@@ -360,13 +360,23 @@ public class EmailProvider implements Parcelable {
return result;
}
@NonNull
static List<EmailProvider> fromDomain(Context context, String domain, Discover discover) throws IOException {
return fromEmail(context, domain, discover);
interface IDiscovery {
void onStatus(String status);
}
@NonNull
static List<EmailProvider> fromEmail(Context context, String email, Discover discover) throws IOException {
static List<EmailProvider> fromDomain(Context context, String domain, Discover discover) throws IOException {
return fromEmail(context, domain, discover,
new IDiscovery() {
@Override
public void onStatus(String status) {
// Do nothing
}
});
}
@NonNull
static List<EmailProvider> fromEmail(Context context, String email, Discover discover, IDiscovery intf) throws IOException {
int at = email.indexOf('@');
String domain = (at < 0 ? email : email.substring(at + 1));
if (at < 0)
@@ -400,7 +410,7 @@ public class EmailProvider implements Parcelable {
}
List<EmailProvider> candidates =
new ArrayList<>(_fromDomain(context, domain.toLowerCase(Locale.ROOT), email, discover));
new ArrayList<>(_fromDomain(context, domain.toLowerCase(Locale.ROOT), email, discover, intf));
if (false) // Unsafe: the password could be sent to an unrelated email server
try {
@@ -421,7 +431,7 @@ public class EmailProvider implements Parcelable {
InetAddress ialt = InetAddress.getByName(altName);
if (!ialt.equals(iaddr)) {
EntityLog.log(context, "Using website common name=" + altName);
candidates.addAll(_fromDomain(context, altName.toLowerCase(Locale.ROOT), email, discover));
candidates.addAll(_fromDomain(context, altName.toLowerCase(Locale.ROOT), email, discover, intf));
}
} catch (Throwable ex) {
Log.w(ex);
@@ -465,7 +475,7 @@ public class EmailProvider implements Parcelable {
}
while (candidates.size() == 0 && target.indexOf('.') > 0) {
candidates.addAll(_fromDomain(context, target, email, discover));
candidates.addAll(_fromDomain(context, target, email, discover, intf));
int dot = target.indexOf('.');
target = target.substring(dot + 1);
if (UriHelper.isTld(context, target))
@@ -565,13 +575,13 @@ public class EmailProvider implements Parcelable {
}
@NonNull
private static List<EmailProvider> _fromDomain(Context context, String domain, String email, Discover discover) {
private static List<EmailProvider> _fromDomain(Context context, String domain, String email, Discover discover, IDiscovery intf) {
List<EmailProvider> result = new ArrayList<>();
try {
// Assume the provider knows best
Log.i("Provider from DNS domain=" + domain);
result.add(fromDNS(context, domain, discover));
result.add(fromDNS(context, domain, discover, intf));
} catch (Throwable ex) {
Log.w(ex);
}
@@ -579,7 +589,7 @@ public class EmailProvider implements Parcelable {
try {
// Check ISPDB
Log.i("Provider from ISPDB domain=" + domain);
result.add(fromISPDB(context, domain, email));
result.add(fromISPDB(context, domain, email, intf));
} catch (Throwable ex) {
Log.w(ex);
}
@@ -587,7 +597,7 @@ public class EmailProvider implements Parcelable {
try {
// Scan ports
Log.i("Provider from scan domain=" + domain);
result.add(fromScan(context, domain, discover));
result.add(fromScan(context, domain, discover, intf));
} catch (Throwable ex) {
Log.w(ex);
}
@@ -596,27 +606,28 @@ public class EmailProvider implements Parcelable {
}
@NonNull
private static EmailProvider fromISPDB(Context context, String domain, String email) throws Throwable {
private static EmailProvider fromISPDB(Context context, String domain, String email, IDiscovery intf) throws Throwable {
// https://wiki.mozilla.org/Thunderbird:Autoconfiguration
for (String link : Misc.getISPDBUrls(domain, email))
try {
URL url = new URL(link);
return getISPDB(context, domain, url);
return getISPDB(context, domain, url, intf);
} catch (Throwable ex) {
Log.i(ex);
}
URL url = new URL("https://autoconfig.thunderbird.net/v1.1/" + domain);
return getISPDB(context, domain, url);
return getISPDB(context, domain, url, intf);
}
@NonNull
private static EmailProvider getISPDB(Context context, String domain, URL url) throws IOException, XmlPullParserException {
private static EmailProvider getISPDB(Context context, String domain, URL url, IDiscovery intf) throws IOException, XmlPullParserException {
EmailProvider provider = new EmailProvider(domain);
HttpURLConnection request = null;
try {
Log.i("Fetching " + url);
intf.onStatus(url.toString());
request = (HttpURLConnection) url.openConnection();
request.setRequestMethod("GET");
@@ -805,14 +816,16 @@ public class EmailProvider implements Parcelable {
}
@NonNull
private static EmailProvider fromDNS(Context context, String domain, Discover discover) throws UnknownHostException {
private static EmailProvider fromDNS(Context context, String domain, Discover discover, IDiscovery intf) throws UnknownHostException {
// https://tools.ietf.org/html/rfc6186
EmailProvider provider = new EmailProvider(domain);
if (discover == Discover.ALL || discover == Discover.IMAP) {
try {
// Identifies an IMAP server where TLS is initiated directly upon connection to the IMAP server.
DnsHelper.DnsRecord[] records = DnsHelper.lookup(context, "_imaps._tcp." + domain, "srv");
String name = "_imaps._tcp." + domain;
intf.onStatus(name);
DnsHelper.DnsRecord[] records = DnsHelper.lookup(context, name, "srv");
if (records.length == 0)
throw new UnknownHostException(domain);
// ... service is not supported at all at a particular domain by setting the target of an SRV RR to "."
@@ -837,7 +850,9 @@ public class EmailProvider implements Parcelable {
if (discover == Discover.ALL || discover == Discover.SMTP)
try {
// Note that this covers connections both with and without Transport Layer Security (TLS)
DnsHelper.DnsRecord[] records = DnsHelper.lookup(context, "_submission._tcp." + domain, "srv");
String name = "_submission._tcp." + domain;
intf.onStatus(name);
DnsHelper.DnsRecord[] records = DnsHelper.lookup(context, name, "srv");
if (records.length == 0)
throw new UnknownHostException(domain);
provider.smtp.score = 50;
@@ -863,7 +878,7 @@ public class EmailProvider implements Parcelable {
}
@NonNull
private static EmailProvider fromScan(Context context, String domain, Discover discover)
private static EmailProvider fromScan(Context context, String domain, Discover discover, IDiscovery intf)
throws ExecutionException, InterruptedException, UnknownHostException {
// https://tools.ietf.org/html/rfc8314
Server imap = null;
@@ -885,6 +900,7 @@ public class EmailProvider implements Parcelable {
Server untrusted = null;
for (Server server : imaps) {
intf.onStatus(server.toString());
Boolean result = server.isReachable.get();
if (result == null) {
if (untrusted == null)
@@ -918,6 +934,7 @@ public class EmailProvider implements Parcelable {
Server untrusted = null;
for (Server server : smtps) {
intf.onStatus(server.toString());
Boolean result = server.isReachable.get();
if (result == null) {
if (untrusted == null)