msb-public
/
FairEmail
mirror of https://github.com/M66B/FairEmail.git
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Code Issues Projects Releases Wiki Activity

Refactoring

Browse Source
pull/214/head
M66B 10 months ago
parent 6ae55f273b
commit 89a4d3ea6d
1 changed files with 461 additions and 442 deletions
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903
app/src/main/java/eu/faircode/email/ActivityDmarc.java
Unescape View File

@ -41,13 +41,16 @@ import androidx.annotation.NonNull;
import androidx.constraintlayout.widget.Group;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.nio.charset.StandardCharsets;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Arrays;
@ -121,499 +124,515 @@ public class ActivityDmarc extends ActivityBase {
@Override
protected Spanned onExecute(Context context, Bundle args) throws Throwable {
Uri uri = args.getParcelable("uri");
NoStreamException.check(uri, context);
DateFormat DTF = Helper.getDateTimeInstance(context, DateFormat.SHORT, DateFormat.SHORT);
int colorWarning = Helper.resolveColor(context, R.attr.colorWarning);
int colorSeparator = Helper.resolveColor(context, R.attr.colorSeparator);
float stroke = context.getResources().getDisplayMetrics().density;
SpannableStringBuilder ssb = new SpannableStringBuilderEx();
String data;
SpannableStringBuilder ssb;
ContentResolver resolver = context.getContentResolver();
try (InputStream is = resolver.openInputStream(uri)) {
if (is == null)
throw new FileNotFoundException(uri.toString());
data = Helper.readStream(is);
ssb = new Loader().load(context, is);
}
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
XmlPullParser xml = factory.newPullParser();
xml.setInput(new StringReader(data));
// https://tools.ietf.org/id/draft-kucherawy-dmarc-base-13.xml#xml_schema
boolean feedback = false;
boolean report_metadata = false;
boolean policy_published = false;
boolean record = false;
boolean row = false;
boolean policy_evaluated = false;
boolean identifiers = false;
boolean auth_results = false;
String lastDomain = null;
String result = null;
List<Pair<String, DnsHelper.DnsRecord>> spf = null;
int eventType = xml.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
if (eventType == XmlPullParser.START_TAG) {
String name = xml.getName();
switch (name) {
case "feedback":
feedback = true;
break;
case "report_metadata":
report_metadata = true;
break;
case "policy_published":
policy_published = true;
lastDomain = null;
break;
case "record":
record = true;
break;
case "row":
row = true;
ssb.append("\uFFFC");
ssb.setSpan(new LineSpan(colorSeparator, stroke, 0), ssb.length() - 1, ssb.length(), 0);
ssb.append("\n");
break;
case "policy_evaluated":
policy_evaluated = true;
break;
case "identifiers":
identifiers = true;
break;
case "auth_results":
auth_results = true;
ssb.append("\n");
break;
try (InputStream is = resolver.openInputStream(uri)) {
int start = ssb.length();
ssb.append(TextHelper.formatXml(Helper.readStream(is), 2));
ssb.setSpan(new TypefaceSpan("monospace"), start, ssb.length(), 0);
ssb.setSpan(new RelativeSizeSpan(HtmlHelper.FONT_SMALL), start, ssb.length(), 0);
}
case "org_name":
case "begin":
case "end":
if (feedback && report_metadata) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
if (text == null)
text = "<null>";
if ("begin".equals(name) || "end".equals(name)) {
text = text.trim();
try {
ssb.append(name).append('=')
.append(DTF.format(Long.parseLong(text) * 1000));
} catch (Throwable ex) {
Log.w(ex);
ssb.append(name).append('=')
.append(text);
}
} else
ssb.append(text);
ssb.append(' ');
}
return ssb;
}
@Override
protected void onExecuted(Bundle args, Spanned dmarc) {
tvDmarc.setText(dmarc);
grpReady.setVisibility(View.VISIBLE);
}
@Override
protected void onException(Bundle args, @NonNull Throwable ex) {
if (ex instanceof NoStreamException)
((NoStreamException) ex).report(ActivityDmarc.this);
else
tvDmarc.setText(ex + "\n" + android.util.Log.getStackTraceString(ex));
grpReady.setVisibility(View.VISIBLE);
}
}.execute(this, args, "dmarc:decode");
}
private static class Loader {
// https://tools.ietf.org/id/draft-kucherawy-dmarc-base-13.xml#xml_schema
private DateFormat DTF;
private int colorWarning;
private int colorSeparator;
private float stroke;
private boolean feedback = false;
private boolean report_metadata = false;
private boolean policy_published = false;
private boolean record = false;
private boolean row = false;
private boolean policy_evaluated = false;
private boolean identifiers = false;
private boolean auth_results = false;
private String lastDomain = null;
private String result = null;
private List<Pair<String, DnsHelper.DnsRecord>> spf = null;
private SpannableStringBuilder ssb = new SpannableStringBuilderEx();
SpannableStringBuilder load(Context context, InputStream is) throws XmlPullParserException, IOException {
DTF = Helper.getDateTimeInstance(context, DateFormat.SHORT, DateFormat.SHORT);
colorWarning = Helper.resolveColor(context, R.attr.colorWarning);
colorSeparator = Helper.resolveColor(context, R.attr.colorSeparator);
stroke = context.getResources().getDisplayMetrics().density;
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
XmlPullParser xml = factory.newPullParser();
xml.setInput(is, StandardCharsets.UTF_8.name());
int eventType = xml.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
if (eventType == XmlPullParser.START_TAG) {
String name = xml.getName();
switch (name) {
case "feedback":
feedback = true;
break;
case "report_metadata":
report_metadata = true;
break;
case "policy_published":
policy_published = true;
lastDomain = null;
break;
case "record":
record = true;
break;
case "row":
row = true;
ssb.append("\uFFFC");
ssb.setSpan(new LineSpan(colorSeparator, stroke, 0), ssb.length() - 1, ssb.length(), 0);
ssb.append("\n");
break;
case "policy_evaluated":
policy_evaluated = true;
break;
case "identifiers":
identifiers = true;
break;
case "auth_results":
auth_results = true;
ssb.append("\n");
break;
case "org_name":
case "begin":
case "end":
if (feedback && report_metadata) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
if (text == null)
text = "<null>";
if ("begin".equals(name) || "end".equals(name)) {
text = text.trim();
try {
ssb.append(name).append('=').append(DTF.format(Long.parseLong(text) * 1000));
} catch (Throwable ex) {
Log.w(ex);
ssb.append(name).append('=').append(text);
}
} else
ssb.append(text);
ssb.append(' ');
}
break;
case "domain":
if (feedback && (policy_published || auth_results)) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
lastDomain = text;
if (text == null)
text = "<null>";
ssb.append(text).append(' ');
}
}
break;
case "domain":
if (feedback && (policy_published || auth_results)) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
lastDomain = text;
if (text == null)
text = "<null>";
ssb.append(text).append(' ');
}
break;
case "adkim":
case "aspf":
case "p":
case "sp":
case "fo":
if (feedback && policy_published) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
if (text == null)
text = "<null>";
if ("adkim".equals(name) || "aspf".equals(name))
if ("r".equals(text))
text = "relaxed";
else if ("s".equals(text))
text = "strict";
ssb.append(name).append('=')
.append(text).append(' ');
}
}
break;
case "adkim":
case "aspf":
case "p":
case "sp":
case "fo":
if (feedback && policy_published) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
if (text == null)
text = "<null>";
if ("adkim".equals(name) || "aspf".equals(name))
if ("r".equals(text))
text = "relaxed";
else if ("s".equals(text))
text = "strict";
ssb.append(name).append('=').append(text).append(' ');
}
break;
case "pct":
if (feedback && policy_published) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
if (text == null)
text = "<null>";
Integer pct = Helper.parseInt(text);
if (pct == null)
ssb.append(name).append('=')
.append(text).append(' ');
else
ssb.append(text).append("% ");
}
}
break;
case "pct":
if (feedback && policy_published) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
if (text == null)
text = "<null>";
Integer pct = Helper.parseInt(text);
if (pct == null)
ssb.append(name).append('=').append(text).append(' ');
else
ssb.append(text).append("% ");
}
break;
case "source_ip":
case "count":
if (feedback && record && row) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
if (text == null)
text = "<null>";
ssb.append(name).append('=')
.append(text).append(' ');
if ("source_ip".equals(name)) {
try {
Boolean valid = null;
String because = null;
if (spf != null)
for (Pair<String, DnsHelper.DnsRecord> p : spf) {
for (String ip : p.second.response.split("\\s+")) {
boolean allow = true;
ip = ip.toLowerCase(Locale.ROOT);
if (ip.startsWith("-"))
allow = false;
else if (ip.startsWith("+"))
ip = ip.substring(1);
// https://datatracker.ietf.org/doc/html/rfc7208#section-5
if (ip.startsWith("ip4:") || ip.startsWith("ip6:")) {
String[] net = ip.substring(4).split("/");
Integer prefix = (net.length > 1
? Helper.parseInt(net[1]) : null);
if (prefix == null) {
if (text.equals(net[0])) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + p.first;
break;
}
} else {
if (ConnectionHelper.inSubnet(text, net[0], prefix)) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + p.first + "/" + prefix;
}
}
} else if ("a".equals(ip) || ip.startsWith("a:")) {
String domain = (ip.startsWith("a:")
? ip.substring(2) : p.first);
String[] net = domain.split("/");
Integer prefix = (net.length > 1
? Helper.parseInt(net[1]) : null);
List<DnsHelper.DnsRecord> as = new ArrayList<>();
try {
as.addAll(Arrays.asList(DnsHelper.lookup(context, net[0], "a")));
} catch (UnknownHostException ignored) {
}
try {
as.addAll(Arrays.asList(DnsHelper.lookup(context, net[0], "aaaa")));
} catch (UnknownHostException ignored) {
}
for (DnsHelper.DnsRecord a : as)
if (prefix == null) {
if (text.equals(a.response)) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + domain;
break;
}
} else {
if (ConnectionHelper.inSubnet(text, a.response, prefix)) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + domain + "/" + prefix;
break;
}
}
} else if ("mx".equals(ip) || ip.startsWith("mx:")) {
try {
String domain = (ip.startsWith("mx:")
? ip.substring(3) : p.first);
String[] net = domain.split("/");
Integer prefix = (net.length > 1
? Helper.parseInt(net[1]) : null);
DnsHelper.DnsRecord[] mxs =
DnsHelper.lookup(context, net[0], "mx");
for (DnsHelper.DnsRecord mx : mxs) {
List<DnsHelper.DnsRecord> as = new ArrayList<>();
try {
as.addAll(Arrays.asList(DnsHelper.lookup(context, mx.response, "a")));
} catch (UnknownHostException ignored) {
}
try {
as.addAll(Arrays.asList(DnsHelper.lookup(context, mx.response, "aaaa")));
} catch (UnknownHostException ignored) {
}
for (DnsHelper.DnsRecord a : as) {
if (prefix == null) {
if (text.equals(a.response)) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + domain;
break;
}
} else {
if (ConnectionHelper.inSubnet(text, a.response, prefix)) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + domain + "/" + prefix;
break;
}
}
}
if (valid != null)
break;
}
} catch (UnknownHostException ignored) {
}
} else if ("ptr".equals(ip) || ip.startsWith("ptr:")) {
valid = false;
because = (allow ? '+' : '-') + ip + " ptr not supported";
}
if (valid != null)
break;
}
if (valid != null)
break;
}
int start = ssb.length();
ssb.append(Boolean.TRUE.equals(valid) ? "valid" : "invalid");
if (because != null)
ssb.append(" (").append(because).append(')');
if (!Boolean.TRUE.equals(valid)) {
ssb.setSpan(new StyleSpan(Typeface.BOLD), start, ssb.length(), 0);
ssb.setSpan(new ForegroundColorSpan(colorWarning), start, ssb.length(), 0);
}
ssb.append(' ');
} catch (Throwable ex) {
Log.w(ex);
ssb.append(ex.toString()).append('\n');
}
try {
InetAddress addr = InetAddress.getByName(text);
IPInfo info = IPInfo.getOrganization(addr, context);
ssb.append('(').append(info.org).append(") ");
} catch (Throwable ex) {
Log.w(ex);
ssb.append(ex.toString()).append('\n');
}
}
}
}
break;
case "source_ip":
case "count":
if (feedback && record && row) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
if (text == null)
text = "<null>";
ssb.append(name).append('=').append(text).append(' ');
if ("source_ip".equals(name))
processSourceIp(context, text);
}
break;
case "disposition": // none, quarantine, reject
case "dkim":
case "spf":
case "header_from":
case "envelope_from":
case "envelope_to":
if (feedback && record)
if (policy_evaluated || identifiers) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
ssb.append(name).append('=');
int start = ssb.length();
String text = xml.getText();
if (text == null)
text = "<null>";
ssb.append(text);
if (!"pass".equals(text.toLowerCase(Locale.ROOT)) &&
("dkim".equals(name) || "spf".equals(name))) {
ssb.setSpan(new StyleSpan(Typeface.BOLD), start, ssb.length(), 0);
ssb.setSpan(new ForegroundColorSpan(colorWarning), start, ssb.length(), 0);
}
ssb.append(' ');
}
} else if (auth_results)
result = name;
break;
case "result":
if (feedback && auth_results) {
}
break;
case "disposition": // none, quarantine, reject
case "dkim":
case "spf":
case "header_from":
case "envelope_from":
case "envelope_to":
if (feedback && record)
if (policy_evaluated || identifiers) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
ssb.append(result == null ? "?" : result).append('=');
ssb.append(name).append('=');
int start = ssb.length();
String text = xml.getText();
if (text == null)
text = "<null>";
ssb.append(text);
if (!"pass".equals(text.toLowerCase(Locale.ROOT))) {
if (!"pass".equals(text.toLowerCase(Locale.ROOT)) &&
("dkim".equals(name) || "spf".equals(name))) {
ssb.setSpan(new StyleSpan(Typeface.BOLD), start, ssb.length(), 0);
ssb.setSpan(new ForegroundColorSpan(colorWarning), start, ssb.length(), 0);
}
ssb.append(' ');
}
}
break;
case "selector":
case "scope":
if (feedback && auth_results) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
if (text == null)
text = "<null>";
ssb.append(name).append('=')
.append(text).append(' ');
} else if (auth_results)
result = name;
break;
case "result":
if (feedback && auth_results) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
ssb.append(result == null ? "?" : result).append('=');
int start = ssb.length();
String text = xml.getText();
if (text == null)
text = "<null>";
ssb.append(text);
if (!"pass".equals(text.toLowerCase(Locale.ROOT))) {
ssb.setSpan(new StyleSpan(Typeface.BOLD), start, ssb.length(), 0);
ssb.setSpan(new ForegroundColorSpan(colorWarning), start, ssb.length(), 0);
}
ssb.append(' ');
}
break;
}
}
break;
case "selector":
case "scope":
if (feedback && auth_results) {
eventType = xml.next();
if (eventType == XmlPullParser.TEXT) {
String text = xml.getText();
if (text == null)
text = "<null>";
ssb.append(name).append('=').append(text).append(' ');
}
}
break;
}
if ("report_metadata".equals(name) ||
"policy_published".equals(name) ||
"row".equals(name) ||
"identifiers".equals(name) ||
"auth_results".equals(name)) {
int start = ssb.length();
ssb.append(name);
ssb.setSpan(new StyleSpan(Typeface.BOLD), start, ssb.length(), 0);
ssb.append("\n");
}
if ("report_metadata".equals(name) ||
"policy_published".equals(name) ||
"row".equals(name) ||
"identifiers".equals(name) ||
"auth_results".equals(name)) {
int start = ssb.length();
ssb.append(name);
ssb.setSpan(new StyleSpan(Typeface.BOLD), start, ssb.length(), 0);
ssb.append("\n");
}
} else if (eventType == XmlPullParser.END_TAG) {
String name = xml.getName();
switch (name) {
case "feedback":
feedback = false;
break;
case "report_metadata":
report_metadata = false;
if (feedback)
ssb.append("\n\n");
break;
case "policy_published":
policy_published = false;
if (feedback) {
ssb.append("\n\n");
if (lastDomain == null)
spf = null;
else {
Integer start = null;
SpannableStringBuilder extra = new SpannableStringBuilderEx();
spf = lookupSpf(context, lastDomain, extra);
for (Pair<String, DnsHelper.DnsRecord> p : spf) {
ssb.append(p.first).append(' ')
.append(p.second.response).append("\n\n");
if (start == null)
start = ssb.length();
} else if (eventType == XmlPullParser.END_TAG) {
String name = xml.getName();
switch (name) {
case "feedback":
feedback = false;
break;
case "report_metadata":
report_metadata = false;
if (feedback)
ssb.append("\n\n");
break;
case "policy_published":
policy_published = false;
if (feedback)
ssb.append("\n\n");
if (lastDomain == null)
spf = null;
else
processPolicyPublished(context);
break;
case "record":
record = false;
break;
case "row":
row = false;
if (feedback)
ssb.append("\n\n");
break;
case "policy_evaluated":
policy_evaluated = false;
break;
case "identifiers":
identifiers = false;
if (feedback)
ssb.append("\n");
break;
case "auth_results":
auth_results = false;
if (feedback)
ssb.append("\n");
break;
case "dkim":
case "spf":
if (feedback && auth_results) {
result = null;
ssb.append("\n");
}
break;
}
}
eventType = xml.next();
}
ssb.append("\uFFFC");
ssb.setSpan(new LineSpan(colorSeparator, stroke, 0), ssb.length() - 1, ssb.length(), 0);
ssb.append("\n");
return ssb;
}
private void processPolicyPublished(Context context) {
Integer start = null;
SpannableStringBuilder extra = new SpannableStringBuilderEx();
spf = lookupSpf(context, lastDomain, extra);
for (Pair<String, DnsHelper.DnsRecord> p : spf) {
ssb.append(p.first).append(' ')
.append(p.second.response).append("\n\n");
if (start == null)
start = ssb.length();
}
ssb.append(extra);
if (start != null) {
ssb.setSpan(new RelativeSizeSpan(HtmlHelper.FONT_SMALL), start, ssb.length(), 0);
ssb.append("\n");
}
List<DnsHelper.DnsRecord> records = new ArrayList<>();
try {
records.addAll(Arrays.asList(
DnsHelper.lookup(context, "_dmarc." + lastDomain, "txt")));
} catch (UnknownHostException ignored) {
}
try {
records.addAll(Arrays.asList(
DnsHelper.lookup(context, "default._bimi." + lastDomain, "txt")));
} catch (UnknownHostException ignored) {
}
for (DnsHelper.DnsRecord r : records)
ssb.append(r.response).append("\n");
ssb.append("\n");
}
private void processSourceIp(Context context, String text) {
try {
Boolean valid = null;
String because = null;
if (spf != null)
for (Pair<String, DnsHelper.DnsRecord> p : spf) {
for (String ip : p.second.response.split("\\s+")) {
boolean allow = true;
ip = ip.toLowerCase(Locale.ROOT);
if (ip.startsWith("-"))
allow = false;
else if (ip.startsWith("+"))
ip = ip.substring(1);
// https://datatracker.ietf.org/doc/html/rfc7208#section-5
if (ip.startsWith("ip4:") || ip.startsWith("ip6:")) {
String[] net = ip.substring(4).split("/");
Integer prefix = (net.length > 1 ? Helper.parseInt(net[1]) : null);
if (prefix == null) {
if (text.equals(net[0])) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + p.first;
break;
}
} else {
if (ConnectionHelper.inSubnet(text, net[0], prefix)) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + p.first + "/" + prefix;
}
}
} else if ("a".equals(ip) || ip.startsWith("a:")) {
String domain = (ip.startsWith("a:") ? ip.substring(2) : p.first);
String[] net = domain.split("/");
Integer prefix = (net.length > 1 ? Helper.parseInt(net[1]) : null);
List<DnsHelper.DnsRecord> as = new ArrayList<>();
try {
as.addAll(Arrays.asList(DnsHelper.lookup(context, net[0], "a")));
} catch (UnknownHostException ignored) {
}
try {
as.addAll(Arrays.asList(DnsHelper.lookup(context, net[0], "aaaa")));
} catch (UnknownHostException ignored) {
}
for (DnsHelper.DnsRecord a : as)
if (prefix == null) {
if (text.equals(a.response)) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + domain;
break;
}
ssb.append(extra);
if (start != null) {
ssb.setSpan(new RelativeSizeSpan(HtmlHelper.FONT_SMALL), start, ssb.length(), 0);
ssb.append("\n");
} else {
if (ConnectionHelper.inSubnet(text, a.response, prefix)) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + domain + "/" + prefix;
break;
}
List<DnsHelper.DnsRecord> records = new ArrayList<>();
}
} else if ("mx".equals(ip) || ip.startsWith("mx:")) {
try {
String domain = (ip.startsWith("mx:") ? ip.substring(3) : p.first);
String[] net = domain.split("/");
Integer prefix = (net.length > 1 ? Helper.parseInt(net[1]) : null);
DnsHelper.DnsRecord[] mxs = DnsHelper.lookup(context, net[0], "mx");
for (DnsHelper.DnsRecord mx : mxs) {
List<DnsHelper.DnsRecord> as = new ArrayList<>();
try {
records.addAll(Arrays.asList(
DnsHelper.lookup(context, "_dmarc." + lastDomain, "txt")));
as.addAll(Arrays.asList(DnsHelper.lookup(context, mx.response, "a")));
} catch (UnknownHostException ignored) {
}
try {
records.addAll(Arrays.asList(
DnsHelper.lookup(context, "default._bimi." + lastDomain, "txt")));
as.addAll(Arrays.asList(DnsHelper.lookup(context, mx.response, "aaaa")));
} catch (UnknownHostException ignored) {
}
for (DnsHelper.DnsRecord r : records)
ssb.append(r.response).append("\n");
ssb.append("\n");
for (DnsHelper.DnsRecord a : as) {
if (prefix == null) {
if (text.equals(a.response)) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + domain;
break;
}
} else {
if (ConnectionHelper.inSubnet(text, a.response, prefix)) {
valid = allow;
because = (allow ? '+' : '-') + ip + " in " + domain + "/" + prefix;
break;
}
}
}
if (valid != null)
break;
}
} catch (UnknownHostException ignored) {
}
break;
case "record":
record = false;
break;
case "row":
row = false;
if (feedback)
ssb.append("\n\n");
break;
case "policy_evaluated":
policy_evaluated = false;
break;
case "identifiers":
identifiers = false;
if (feedback)
ssb.append("\n");
break;
case "auth_results":
auth_results = false;
if (feedback)
ssb.append("\n");
break;
case "dkim":
case "spf":
if (feedback && auth_results) {
result = null;
ssb.append("\n");
}
} else if ("ptr".equals(ip) || ip.startsWith("ptr:")) {
valid = false;
because = (allow ? '+' : '-') + ip + " ptr not supported";
}
if (valid != null)
break;
}
if (valid != null)
break;
}
eventType = xml.next();
}
ssb.append("\uFFFC");
ssb.setSpan(new LineSpan(colorSeparator, stroke, 0), ssb.length() - 1, ssb.length(), 0);
ssb.append("\n");
int start = ssb.length();
ssb.append(TextHelper.formatXml(data, 2));
ssb.setSpan(new TypefaceSpan("monospace"), start, ssb.length(), 0);
ssb.setSpan(new RelativeSizeSpan(HtmlHelper.FONT_SMALL), start, ssb.length(), 0);
ssb.append(Boolean.TRUE.equals(valid) ? "valid" : "invalid");
if (because != null)
ssb.append(" (").append(because).append(')');
return ssb;
}
if (!Boolean.TRUE.equals(valid)) {
ssb.setSpan(new StyleSpan(Typeface.BOLD), start, ssb.length(), 0);
ssb.setSpan(new ForegroundColorSpan(colorWarning), start, ssb.length(), 0);
}
@Override
protected void onExecuted(Bundle args, Spanned dmarc) {
tvDmarc.setText(dmarc);
grpReady.setVisibility(View.VISIBLE);
ssb.append(' ');
} catch (Throwable ex) {
Log.w(ex);
ssb.append(ex.toString()).append('\n');
}
@Override
protected void onException(Bundle args, @NonNull Throwable ex) {
if (ex instanceof NoStreamException)
((NoStreamException) ex).report(ActivityDmarc.this);
else
tvDmarc.setText(ex + "\n" + android.util.Log.getStackTraceString(ex));
grpReady.setVisibility(View.VISIBLE);
try {
InetAddress addr = InetAddress.getByName(text);
IPInfo info = IPInfo.getOrganization(addr, context);
ssb.append('(').append(info.org).append(") ");
} catch (Throwable ex) {
Log.w(ex);
ssb.append(ex.toString()).append('\n');
}
}
private List<Pair<String, DnsHelper.DnsRecord>> lookupSpf(Context context, String domain, SpannableStringBuilder ssb) {
List<Pair<String, DnsHelper.DnsRecord>> result = new ArrayList<>();
try {
DnsHelper.DnsRecord[] records = DnsHelper.lookup(context, domain, "txt");
ssb.append(domain).append('=')
.append(Integer.toString(records.length)).append('\n');
for (DnsHelper.DnsRecord r : records)
if (r.response.contains("spf")) {
result.add(new Pair<>(domain, r));
for (String part : r.response.split("\\s+"))
if (part.toLowerCase(Locale.ROOT).startsWith("include:")) {
String sub = part.substring("include:".length());
result.addAll(lookupSpf(context, sub, ssb));
}
}
} catch (Throwable ex) {
Log.w(ex);
ssb.append(ex.toString()).append('\n');
}
return result;
private static List<Pair<String, DnsHelper.DnsRecord>> lookupSpf(Context context, String domain, SpannableStringBuilder ssb) {
List<Pair<String, DnsHelper.DnsRecord>> result = new ArrayList<>();
try {
DnsHelper.DnsRecord[] records = DnsHelper.lookup(context, domain, "txt");
ssb.append(domain).append('=').append(Integer.toString(records.length)).append('\n');
for (DnsHelper.DnsRecord r : records)
if (r.response.contains("spf")) {
result.add(new Pair<>(domain, r));
for (String part : r.response.split("\\s+"))
if (part.toLowerCase(Locale.ROOT).startsWith("include:")) {
String sub = part.substring("include:".length());
result.addAll(lookupSpf(context, sub, ssb));
}
}
} catch (Throwable ex) {
Log.w(ex);
ssb.append(ex.toString()).append('\n');
}
}.execute(this, args, "dmarc:decode");
return result;
}
}
}

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