Merge "Comply with naming convention in RFC6335." into rvc-dev (4f777adb) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/adb/AdbDebuggingManager.java

+9 −1

Original line number	Diff line number	Diff line
		@@ -177,7 +177,15 @@ public class AdbDebuggingManager {
		private String mPairingCode;
		private String mGuid;
		private String mServiceName;
		private final String mServiceType = "_adb_secure_pairing._tcp.";
		// From RFC6763 (https://tools.ietf.org/html/rfc6763#section-7.2),
		// The rules for Service Names [RFC6335] state that they may be no more
		// than fifteen characters long (not counting the mandatory underscore),
		// consisting of only letters, digits, and hyphens, must begin and end
		// with a letter or digit, must not contain consecutive hyphens, and
		// must contain at least one letter.
		@VisibleForTesting
		static final String SERVICE_PROTOCOL = "adb-tls-pairing";
		private final String mServiceType = String.format("_%s._tcp.", SERVICE_PROTOCOL);
		private int mPort;

		private native int native_pairing_start(String guid, String password);

services/tests/servicestests/src/com/android/server/adb/AdbDebuggingManagerTest.java

+92 −0

Original line number	Diff line number	Diff line
		@@ -721,6 +721,98 @@ public final class AdbDebuggingManagerTest {
		isKeyInFile(TEST_KEY_2, mAdbKeyFile));
		}

		@Test
		public void testIsValidMdnsServiceName() {
		// Longer than 15 characters
		assertFalse(isValidMdnsServiceName("abcd1234abcd1234"));

		// Contains invalid characters
		assertFalse(isValidMdnsServiceName("a*a"));
		assertFalse(isValidMdnsServiceName("a_a"));
		assertFalse(isValidMdnsServiceName("_a"));

		// Does not begin or end with letter or digit
		assertFalse(isValidMdnsServiceName(""));
		assertFalse(isValidMdnsServiceName("-"));
		assertFalse(isValidMdnsServiceName("-a"));
		assertFalse(isValidMdnsServiceName("-1"));
		assertFalse(isValidMdnsServiceName("a-"));
		assertFalse(isValidMdnsServiceName("1-"));

		// Contains consecutive hyphens
		assertFalse(isValidMdnsServiceName("a--a"));

		// Does not contain at least one letter
		assertFalse(isValidMdnsServiceName("1"));
		assertFalse(isValidMdnsServiceName("12"));
		assertFalse(isValidMdnsServiceName("1-2"));

		// letter not within [a-zA-Z]
		assertFalse(isValidMdnsServiceName("aés"));

		// Some valid names
		assertTrue(isValidMdnsServiceName("a"));
		assertTrue(isValidMdnsServiceName("a1"));
		assertTrue(isValidMdnsServiceName("1A"));
		assertTrue(isValidMdnsServiceName("aZ"));
		assertTrue(isValidMdnsServiceName("a-Z"));
		assertTrue(isValidMdnsServiceName("a-b-Z"));
		assertTrue(isValidMdnsServiceName("abc-def-123-456"));
		}

		@Test
		public void testPairingThread_MdnsServiceName_RFC6335() {
		assertTrue(isValidMdnsServiceName(AdbDebuggingManager.PairingThread.SERVICE_PROTOCOL));
		}

		private boolean isValidMdnsServiceName(String name) {
		// The rules for Service Names [RFC6335] state that they may be no more
		// than fifteen characters long (not counting the mandatory underscore),
		// consisting of only letters, digits, and hyphens, must begin and end
		// with a letter or digit, must not contain consecutive hyphens, and
		// must contain at least one letter.
		// No more than 15 characters long
		final int len = name.length();
		if (name.isEmpty() \|\| len > 15) {
		return false;
		}

		boolean hasAtLeastOneLetter = false;
		boolean sawHyphen = false;
		for (int i = 0; i < len; ++i) {
		// Must contain at least one letter
		// Only contains letters, digits and hyphens
		char c = name.charAt(i);
		if (c == '-') {
		// Cannot be at beginning or end
		if (i == 0 \|\| i == len - 1) {
		return false;
		}
		if (sawHyphen) {
		// Consecutive hyphen found
		return false;
		}
		sawHyphen = true;
		continue;
		}

		sawHyphen = false;
		if ((c >= 'a' && c <= 'z') \|\| (c >= 'A' && c <= 'Z')) {
		hasAtLeastOneLetter = true;
		continue;
		}

		if (c >= '0' && c <= '9') {
		continue;
		}

		// Invalid character
		return false;
		}

		return hasAtLeastOneLetter;
		}

		/**
		* Runs an adb test with the provided configuration.
		*