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Code Issues Releases Wiki Activity

Attempt to workaround Android 7.0 cipher problem

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M66B 2023-11-08 08:43:16 +01:00
parent 04908ca4bb
commit e4aca7a432
1 changed files with 11 additions and 0 deletions
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11
app/src/main/java/eu/faircode/email/EmailService.java
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@ -1290,6 +1290,17 @@ public class EmailService implements AutoCloseable {
sslSocket.setEnabledCipherSuites(ciphers.toArray(new String[0]));
}
// https://issuetracker.google.com/issues/37122132
// https://stackoverflow.com/questions/39133437/sslhandshakeexception-handshake-failed-on-android-n-7-0
if (Build.VERSION.SDK_INT == Build.VERSION_CODES.N) {
List<String> ciphers = new ArrayList<>();
for (String cipher : sslSocket.getEnabledCipherSuites())
if (cipher != null && !cipher.endsWith("SHA384"))
ciphers.add(cipher);
if (ciphers.size() > 0)
sslSocket.setEnabledCipherSuites(ciphers.toArray(new String[0]));
}
Log.i("SSL protocols=" + TextUtils.join(",", sslSocket.getEnabledProtocols()));
Log.i("SSL ciphers=" + TextUtils.join(",", sslSocket.getEnabledCipherSuites()));
}