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Make sure unsafe names can be sent in emails (#2169)

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Surround the dot in unsafe domain names with a square bracket. This
is suggested by Gmail abuse-detection and allows outgoing messages
to pass Gmail's check. This should also help with recipients' checks.
This commit is contained in:
Weimin Yu 2023-10-05 11:19:31 -04:00 • committed by GitHub
parent 2da8ea0185
commit bd0d8af7b3
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 18 additions and 12 deletions
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12
core/src/main/java/google/registry/reporting/spec11/Spec11EmailUtils.java
View file

@ -171,7 +171,7 @@ public class Spec11EmailUtils {
gmailClient.sendEmail(
EmailMessage.newBuilder()
.setSubject(subject)
.setBody(getContent(date, soyTemplateInfo, registrarThreatMatches))
.setBody(getEmailBody(date, soyTemplateInfo, registrarThreatMatches))
.setContentType(MediaType.HTML_UTF_8)
.setFrom(outgoingEmailAddress)
.addRecipient(getEmailAddressForRegistrar(registrarThreatMatches.clientId()))
@ -179,7 +179,7 @@ public class Spec11EmailUtils {
.build());
}
private String getContent(
private String getEmailBody(
LocalDate date,
SoyTemplateInfo soyTemplateInfo,
RegistrarThreatMatches registrarThreatMatches) {
@ -190,7 +190,7 @@ public class Spec11EmailUtils {
.map(
threatMatch ->
ImmutableMap.of(
"domainName", threatMatch.domainName(),
"domainName", toEmailSafeString(threatMatch.domainName()),
"threatType", threatMatch.threatType()))
.collect(toImmutableList());
@ -205,6 +205,12 @@ public class Spec11EmailUtils {
return renderer.render();
}
// Mutates a known bad domain to pass spam checks by Email sender and clients, as suggested by
// the Gmail abuse-detection team.
private String toEmailSafeString(String knownUnsafeDomain) {
return knownUnsafeDomain.replace(".", "[.]");
}
/** Sends an e-mail indicating the state of the spec11 pipeline, with a given subject and body. */
void sendAlertEmail(String subject, String body) {
try {

18
core/src/test/java/google/registry/reporting/spec11/Spec11EmailUtilsTest.java
View file

@ -165,7 +165,7 @@ class Spec11EmailUtilsTest {
"the.registrar@example.com",
ImmutableList.of("abuse@test.com", "bcc@test.com"),
"Super Cool Registry Monthly Threat Detector [2018-07-15]",
String.format(MONTHLY_EMAIL_FORMAT, "<tr><td>a.com</td><td>MALWARE</td></tr>"),
String.format(MONTHLY_EMAIL_FORMAT, "<tr><td>a[.]com</td><td>MALWARE</td></tr>"),
Optional.of(MediaType.HTML_UTF_8));
validateMessage(
capturedContents.get(1),
@ -175,7 +175,7 @@ class Spec11EmailUtilsTest {
"Super Cool Registry Monthly Threat Detector [2018-07-15]",
String.format(
MONTHLY_EMAIL_FORMAT,
"<tr><td>b.com</td><td>MALWARE</td></tr><tr><td>c.com</td><td>MALWARE</td></tr>"),
"<tr><td>b[.]com</td><td>MALWARE</td></tr><tr><td>c[.]com</td><td>MALWARE</td></tr>"),
Optional.of(MediaType.HTML_UTF_8));
validateMessage(
capturedContents.get(2),
@ -203,7 +203,7 @@ class Spec11EmailUtilsTest {
"the.registrar@example.com",
ImmutableList.of("abuse@test.com", "bcc@test.com"),
"Super Cool Registry Daily Threat Detector [2018-07-15]",
String.format(DAILY_EMAIL_FORMAT, "<tr><td>a.com</td><td>MALWARE</td></tr>"),
String.format(DAILY_EMAIL_FORMAT, "<tr><td>a[.]com</td><td>MALWARE</td></tr>"),
Optional.of(MediaType.HTML_UTF_8));
validateMessage(
capturedMessages.get(1),
@ -213,7 +213,7 @@ class Spec11EmailUtilsTest {
"Super Cool Registry Daily Threat Detector [2018-07-15]",
String.format(
DAILY_EMAIL_FORMAT,
"<tr><td>b.com</td><td>MALWARE</td></tr><tr><td>c.com</td><td>MALWARE</td></tr>"),
"<tr><td>b[.]com</td><td>MALWARE</td></tr><tr><td>c[.]com</td><td>MALWARE</td></tr>"),
Optional.of(MediaType.HTML_UTF_8));
validateMessage(
capturedMessages.get(2),
@ -244,7 +244,7 @@ class Spec11EmailUtilsTest {
"new.registrar@example.com",
ImmutableList.of("abuse@test.com", "bcc@test.com"),
"Super Cool Registry Monthly Threat Detector [2018-07-15]",
String.format(MONTHLY_EMAIL_FORMAT, "<tr><td>c.com</td><td>MALWARE</td></tr>"),
String.format(MONTHLY_EMAIL_FORMAT, "<tr><td>c[.]com</td><td>MALWARE</td></tr>"),
Optional.of(MediaType.HTML_UTF_8));
validateMessage(
capturedContents.get(1),
@ -277,7 +277,7 @@ class Spec11EmailUtilsTest {
"the.registrar@example.com",
ImmutableList.of("abuse@test.com", "bcc@test.com"),
"Super Cool Registry Monthly Threat Detector [2018-07-15]",
String.format(MONTHLY_EMAIL_FORMAT, "<tr><td>a.com</td><td>MALWARE</td></tr>"),
String.format(MONTHLY_EMAIL_FORMAT, "<tr><td>a[.]com</td><td>MALWARE</td></tr>"),
Optional.of(MediaType.HTML_UTF_8));
validateMessage(
capturedContents.get(1),
@ -287,7 +287,7 @@ class Spec11EmailUtilsTest {
"Super Cool Registry Monthly Threat Detector [2018-07-15]",
String.format(
MONTHLY_EMAIL_FORMAT,
"<tr><td>b.com</td><td>MALWARE</td></tr><tr><td>c.com</td><td>MALWARE</td></tr>"),
"<tr><td>b[.]com</td><td>MALWARE</td></tr><tr><td>c[.]com</td><td>MALWARE</td></tr>"),
Optional.of(MediaType.HTML_UTF_8));
validateMessage(
capturedContents.get(2),
@ -332,7 +332,7 @@ class Spec11EmailUtilsTest {
"the.registrar@example.com",
ImmutableList.of("abuse@test.com", "bcc@test.com"),
"Super Cool Registry Monthly Threat Detector [2018-07-15]",
String.format(MONTHLY_EMAIL_FORMAT, "<tr><td>a.com</td><td>MALWARE</td></tr>"),
String.format(MONTHLY_EMAIL_FORMAT, "<tr><td>a[.]com</td><td>MALWARE</td></tr>"),
Optional.of(MediaType.HTML_UTF_8));
validateMessage(
capturedMessages.get(1),
@ -342,7 +342,7 @@ class Spec11EmailUtilsTest {
"Super Cool Registry Monthly Threat Detector [2018-07-15]",
String.format(
MONTHLY_EMAIL_FORMAT,
"<tr><td>b.com</td><td>MALWARE</td></tr><tr><td>c.com</td><td>MALWARE</td></tr>"),
"<tr><td>b[.]com</td><td>MALWARE</td></tr><tr><td>c[.]com</td><td>MALWARE</td></tr>"),
Optional.of(MediaType.HTML_UTF_8));
validateMessage(
capturedMessages.get(2),