Merge "nfc(api): Copy over utilities used by non-mainline API classes" into main
diff --git a/core/java/android/nfc/cardemulation/AidGroup.java b/core/java/android/nfc/cardemulation/AidGroup.java
index 958669e..ae3e333 100644
--- a/core/java/android/nfc/cardemulation/AidGroup.java
+++ b/core/java/android/nfc/cardemulation/AidGroup.java
@@ -34,6 +34,7 @@
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
+import java.util.regex.Pattern;
/**********************************************************************
* This file is not a part of the NFC mainline module *
@@ -79,7 +80,7 @@
throw new IllegalArgumentException("Too many AIDs in AID group.");
}
for (String aid : aids) {
- if (!CardEmulation.isValidAid(aid)) {
+ if (!isValidAid(aid)) {
throw new IllegalArgumentException("AID " + aid + " is not a valid AID.");
}
}
@@ -264,4 +265,34 @@
return CardEmulation.CATEGORY_PAYMENT.equals(category) ||
CardEmulation.CATEGORY_OTHER.equals(category);
}
+
+ private static final Pattern AID_PATTERN = Pattern.compile("[0-9A-Fa-f]{10,32}\\*?\\#?");
+ /**
+ * Copied over from {@link CardEmulation#isValidAid(String)}
+ * @hide
+ */
+ private static boolean isValidAid(String aid) {
+ if (aid == null)
+ return false;
+
+ // If a prefix/subset AID, the total length must be odd (even # of AID chars + '*')
+ if ((aid.endsWith("*") || aid.endsWith("#")) && ((aid.length() % 2) == 0)) {
+ Log.e(TAG, "AID " + aid + " is not a valid AID.");
+ return false;
+ }
+
+ // If not a prefix/subset AID, the total length must be even (even # of AID chars)
+ if ((!(aid.endsWith("*") || aid.endsWith("#"))) && ((aid.length() % 2) != 0)) {
+ Log.e(TAG, "AID " + aid + " is not a valid AID.");
+ return false;
+ }
+
+ // Verify hex characters
+ if (!AID_PATTERN.matcher(aid).matches()) {
+ Log.e(TAG, "AID " + aid + " is not a valid AID.");
+ return false;
+ }
+
+ return true;
+ }
}
diff --git a/core/java/android/nfc/cardemulation/ApduServiceInfo.java b/core/java/android/nfc/cardemulation/ApduServiceInfo.java
index 18ec914..665b753 100644
--- a/core/java/android/nfc/cardemulation/ApduServiceInfo.java
+++ b/core/java/android/nfc/cardemulation/ApduServiceInfo.java
@@ -52,6 +52,7 @@
import java.util.HashMap;
import java.util.List;
import java.util.Map;
+import java.util.regex.Pattern;
/**
* Class holding APDU service info.
@@ -307,7 +308,7 @@
com.android.internal.R.styleable.AidFilter);
String aid = a.getString(com.android.internal.R.styleable.AidFilter_name).
toUpperCase();
- if (CardEmulation.isValidAid(aid) && !currentGroup.getAids().contains(aid)) {
+ if (isValidAid(aid) && !currentGroup.getAids().contains(aid)) {
currentGroup.getAids().add(aid);
} else {
Log.e(TAG, "Ignoring invalid or duplicate aid: " + aid);
@@ -321,7 +322,7 @@
toUpperCase();
// Add wildcard char to indicate prefix
aid = aid.concat("*");
- if (CardEmulation.isValidAid(aid) && !currentGroup.getAids().contains(aid)) {
+ if (isValidAid(aid) && !currentGroup.getAids().contains(aid)) {
currentGroup.getAids().add(aid);
} else {
Log.e(TAG, "Ignoring invalid or duplicate aid: " + aid);
@@ -335,7 +336,7 @@
toUpperCase();
// Add wildcard char to indicate suffix
aid = aid.concat("#");
- if (CardEmulation.isValidAid(aid) && !currentGroup.getAids().contains(aid)) {
+ if (isValidAid(aid) && !currentGroup.getAids().contains(aid)) {
currentGroup.getAids().add(aid);
} else {
Log.e(TAG, "Ignoring invalid or duplicate aid: " + aid);
@@ -806,7 +807,7 @@
*/
@FlaggedApi(Flags.FLAG_ENABLE_NFC_MAINLINE)
public void dumpDebug(@NonNull ProtoOutputStream proto) {
- Utils.dumpDebugComponentName(getComponent(), proto, ApduServiceInfoProto.COMPONENT_NAME);
+ getComponent().dumpDebug(proto, ApduServiceInfoProto.COMPONENT_NAME);
proto.write(ApduServiceInfoProto.DESCRIPTION, getDescription());
proto.write(ApduServiceInfoProto.ON_HOST, mOnHost);
if (!mOnHost) {
@@ -825,4 +826,34 @@
}
proto.write(ApduServiceInfoProto.SETTINGS_ACTIVITY_NAME, mSettingsActivityName);
}
+
+ private static final Pattern AID_PATTERN = Pattern.compile("[0-9A-Fa-f]{10,32}\\*?\\#?");
+ /**
+ * Copied over from {@link CardEmulation#isValidAid(String)}
+ * @hide
+ */
+ private static boolean isValidAid(String aid) {
+ if (aid == null)
+ return false;
+
+ // If a prefix/subset AID, the total length must be odd (even # of AID chars + '*')
+ if ((aid.endsWith("*") || aid.endsWith("#")) && ((aid.length() % 2) == 0)) {
+ Log.e(TAG, "AID " + aid + " is not a valid AID.");
+ return false;
+ }
+
+ // If not a prefix/subset AID, the total length must be even (even # of AID chars)
+ if ((!(aid.endsWith("*") || aid.endsWith("#"))) && ((aid.length() % 2) != 0)) {
+ Log.e(TAG, "AID " + aid + " is not a valid AID.");
+ return false;
+ }
+
+ // Verify hex characters
+ if (!AID_PATTERN.matcher(aid).matches()) {
+ Log.e(TAG, "AID " + aid + " is not a valid AID.");
+ return false;
+ }
+
+ return true;
+ }
}
diff --git a/core/java/android/nfc/cardemulation/NfcFServiceInfo.java b/core/java/android/nfc/cardemulation/NfcFServiceInfo.java
index ec919e4..33bc169 100644
--- a/core/java/android/nfc/cardemulation/NfcFServiceInfo.java
+++ b/core/java/android/nfc/cardemulation/NfcFServiceInfo.java
@@ -173,7 +173,7 @@
com.android.internal.R.styleable.SystemCodeFilter);
systemCode = a.getString(
com.android.internal.R.styleable.SystemCodeFilter_name).toUpperCase();
- if (!NfcFCardEmulation.isValidSystemCode(systemCode) &&
+ if (!isValidSystemCode(systemCode) &&
!systemCode.equalsIgnoreCase("NULL")) {
Log.e(TAG, "Invalid System Code: " + systemCode);
systemCode = null;
@@ -187,7 +187,7 @@
com.android.internal.R.styleable.Nfcid2Filter_name).toUpperCase();
if (!nfcid2.equalsIgnoreCase("RANDOM") &&
!nfcid2.equalsIgnoreCase("NULL") &&
- !NfcFCardEmulation.isValidNfcid2(nfcid2)) {
+ !isValidNfcid2(nfcid2)) {
Log.e(TAG, "Invalid NFCID2: " + nfcid2);
nfcid2 = null;
}
@@ -436,10 +436,62 @@
*/
@FlaggedApi(Flags.FLAG_ENABLE_NFC_MAINLINE)
public void dumpDebug(@NonNull ProtoOutputStream proto) {
- Utils.dumpDebugComponentName(getComponent(), proto, NfcFServiceInfoProto.COMPONENT_NAME);
+ getComponent().dumpDebug(proto, NfcFServiceInfoProto.COMPONENT_NAME);
proto.write(NfcFServiceInfoProto.DESCRIPTION, getDescription());
proto.write(NfcFServiceInfoProto.SYSTEM_CODE, getSystemCode());
proto.write(NfcFServiceInfoProto.NFCID2, getNfcid2());
proto.write(NfcFServiceInfoProto.T3T_PMM, getT3tPmm());
}
+
+ /**
+ * Copied over from {@link NfcFCardEmulation#isValidSystemCode(String)}
+ * @hide
+ */
+ private static boolean isValidSystemCode(String systemCode) {
+ if (systemCode == null) {
+ return false;
+ }
+ if (systemCode.length() != 4) {
+ Log.e(TAG, "System Code " + systemCode + " is not a valid System Code.");
+ return false;
+ }
+ // check if the value is between "4000" and "4FFF" (excluding "4*FF")
+ if (!systemCode.startsWith("4") || systemCode.toUpperCase().endsWith("FF")) {
+ Log.e(TAG, "System Code " + systemCode + " is not a valid System Code.");
+ return false;
+ }
+ try {
+ Integer.parseInt(systemCode, 16);
+ } catch (NumberFormatException e) {
+ Log.e(TAG, "System Code " + systemCode + " is not a valid System Code.");
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Copied over from {@link NfcFCardEmulation#isValidNfcid2(String)}
+ * @hide
+ */
+ private static boolean isValidNfcid2(String nfcid2) {
+ if (nfcid2 == null) {
+ return false;
+ }
+ if (nfcid2.length() != 16) {
+ Log.e(TAG, "NFCID2 " + nfcid2 + " is not a valid NFCID2.");
+ return false;
+ }
+ // check if the the value starts with "02FE"
+ if (!nfcid2.toUpperCase().startsWith("02FE")) {
+ Log.e(TAG, "NFCID2 " + nfcid2 + " is not a valid NFCID2.");
+ return false;
+ }
+ try {
+ Long.parseLong(nfcid2, 16);
+ } catch (NumberFormatException e) {
+ Log.e(TAG, "NFCID2 " + nfcid2 + " is not a valid NFCID2.");
+ return false;
+ }
+ return true;
+ }
}