Ignore invalid time stamp in SMS PDUs

Catch a DateTimeException so that we don't lose SMS PDUs even if they
have invalid time stamp caused by SMSC problems.

Bug: 160200121
Test: Received SMS having invalid time stamp

Signed-off-by: Taesu Lee <taesu82.lee@samsung.com>
Change-Id: I80ef1c134f49d6a23e87a77125f54f4f66d62023

2 files changed, 32 insertions, 17 deletions

diff --git a/telephony/java/com/android/internal/telephony/cdma/sms/BearerData.java b/telephony/java/com/android/internal/telephony/cdma/sms/BearerData.java
index 3f85de358ea2..85b88ef2bb58 100644
--- a/telephony/java/com/android/internal/telephony/cdma/sms/BearerData.java
+++ b/telephony/java/com/android/internal/telephony/cdma/sms/BearerData.java
@@ -35,6 +35,7 @@ import com.android.internal.util.BitwiseOutputStream;
 import com.android.telephony.Rlog;
 
 import java.io.ByteArrayOutputStream;
+import java.time.DateTimeException;
 import java.time.Instant;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
@@ -315,10 +316,16 @@ public final class BearerData {
         }
 
         public long toMillis() {
-            LocalDateTime localDateTime =
-                    LocalDateTime.of(year, monthOrdinal, monthDay, hour, minute, second);
-            Instant instant = localDateTime.toInstant(mZoneId.getRules().getOffset(localDateTime));
-            return instant.toEpochMilli();
+            try {
+                LocalDateTime localDateTime =
+                        LocalDateTime.of(year, monthOrdinal, monthDay, hour, minute, second);
+                Instant instant =
+                        localDateTime.toInstant(mZoneId.getRules().getOffset(localDateTime));
+                return instant.toEpochMilli();
+            } catch (DateTimeException ex) {
+                Rlog.e(LOG_TAG, "Invalid timestamp", ex);
+            }
+            return 0;
         }
 
 
diff --git a/telephony/java/com/android/internal/telephony/gsm/SmsMessage.java b/telephony/java/com/android/internal/telephony/gsm/SmsMessage.java
index 122f0851cf37..6ed0f66f8834 100644
--- a/telephony/java/com/android/internal/telephony/gsm/SmsMessage.java
+++ b/telephony/java/com/android/internal/telephony/gsm/SmsMessage.java
@@ -43,6 +43,7 @@ import com.android.telephony.Rlog;
 import java.io.ByteArrayOutputStream;
 import java.io.UnsupportedEncodingException;
 import java.text.ParseException;
+import java.time.DateTimeException;
 import java.time.Instant;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
@@ -888,10 +889,9 @@ public class SmsMessage extends SmsMessageBase {
         }
 
         /**
-         * Parses an SC timestamp and returns a currentTimeMillis()-style
-         * timestamp
+         * Parses an SC timestamp and returns a currentTimeMillis()-style timestamp, or 0 if
+         * invalid.
          */
-
         long getSCTimestampMillis() {
             // TP-Service-Centre-Time-Stamp
             int year = IccUtils.gsmBcdByteToInt(mPdu[mCur++]);
@@ -917,16 +917,22 @@ public class SmsMessage extends SmsMessageBase {
 
             // It's 2006.  Should I really support years < 2000?
             int fullYear = year >= 90 ? year + 1900 : year + 2000;
-            LocalDateTime localDateTime = LocalDateTime.of(
-                    fullYear,
-                    month /* 1-12 */,
-                    day,
-                    hour,
-                    minute,
-                    second);
-            long epochSeconds = localDateTime.toEpochSecond(ZoneOffset.UTC) - timeZoneOffsetSeconds;
-            // Convert to milliseconds.
-            return epochSeconds * 1000;
+            try {
+                LocalDateTime localDateTime = LocalDateTime.of(
+                        fullYear,
+                        month /* 1-12 */,
+                        day,
+                        hour,
+                        minute,
+                        second);
+                long epochSeconds =
+                        localDateTime.toEpochSecond(ZoneOffset.UTC) - timeZoneOffsetSeconds;
+                // Convert to milliseconds.
+                return epochSeconds * 1000;
+            } catch (DateTimeException ex) {
+                Rlog.e(LOG_TAG, "Invalid timestamp", ex);
+            }
+            return 0;
         }
 
         /**
@@ -1277,6 +1283,7 @@ public class SmsMessage extends SmsMessageBase {
         mRecipientAddress = p.getAddress();
         // TP-Service-Centre-Time-Stamp
         mScTimeMillis = p.getSCTimestampMillis();
+        // TP-Discharge-Time
         p.getSCTimestampMillis();
         // TP-Status
         mStatus = p.getByte();
@@ -1335,6 +1342,7 @@ public class SmsMessage extends SmsMessageBase {
                     + " data coding scheme: " + mDataCodingScheme);
         }
 
+        // TP-Service-Centre-Time-Stamp
         mScTimeMillis = p.getSCTimestampMillis();
 
         if (VDBG) Rlog.d(LOG_TAG, "SMS SC timestamp: " + mScTimeMillis);