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[tor-commits] [metrics-lib/master] Create ServerDescriptor#isHiddenServiceDir.



commit 368deb83efd2e8492070593d10268a1a3e2ff397
Author: Karsten Loesing <karsten.loesing@xxxxxxx>
Date:   Wed Apr 4 22:04:03 2018 +0200

    Create ServerDescriptor#isHiddenServiceDir.
    
    Turns out that Tor has never supported versions in the
    hidden-service-dir descriptor line.
    
    This commit replaces ServerDescriptor#getHiddenServiceDirVersions with
    ServerDescriptor#isHiddenServiceDir.
    
    Fixes #25712.
---
 CHANGELOG.md                                       |  7 +++++-
 .../torproject/descriptor/ServerDescriptor.java    | 10 ++++++++
 .../descriptor/impl/ServerDescriptorImpl.java      | 29 ++++++++--------------
 .../descriptor/impl/ServerDescriptorImplTest.java  | 11 +++-----
 4 files changed, 31 insertions(+), 26 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 58235e3..d64d58d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 # Changes in version 2.3.0 - 2018-0?-??
 
- * Minor changes.
+ * Medium changes
+   - Replace ServerDescriptor#getHiddenServiceDirVersions with
+     ServerDescriptor#isHiddenServiceDir, because Tor has never
+     supported versions in the hidden-service-dir descriptor line.
+
+ * Minor changes
    - Override logLines() method from LogDescriptor in
      WebServerAccessLog.
    - Use 1-minute connect and read timeouts for fetching CollecTor's
diff --git a/src/main/java/org/torproject/descriptor/ServerDescriptor.java b/src/main/java/org/torproject/descriptor/ServerDescriptor.java
index ac9c645..1b91ec8 100644
--- a/src/main/java/org/torproject/descriptor/ServerDescriptor.java
+++ b/src/main/java/org/torproject/descriptor/ServerDescriptor.java
@@ -318,11 +318,21 @@ public interface ServerDescriptor extends Descriptor {
    * this server stores and serves, or null if it doesn't store and serve
    * any hidden service descriptors.
    *
+   * @deprecated Replaced with {@link #isHiddenServiceDir}, because Tor has
+   *     never supported versions in the hidden-service-dir descriptor line.
+   *
    * @since 1.0.0
    */
   public List<Integer> getHiddenServiceDirVersions();
 
   /**
+   * Return whether this server stores and serves hidden service descriptors.
+   *
+   * @since 2.3.0
+   */
+  public boolean isHiddenServiceDir();
+
+  /**
    * Return the list of link protocol versions that this server
    * supports.
    *
diff --git a/src/main/java/org/torproject/descriptor/impl/ServerDescriptorImpl.java b/src/main/java/org/torproject/descriptor/impl/ServerDescriptorImpl.java
index ca79cd2..9c9d47a 100644
--- a/src/main/java/org/torproject/descriptor/impl/ServerDescriptorImpl.java
+++ b/src/main/java/org/torproject/descriptor/impl/ServerDescriptorImpl.java
@@ -10,6 +10,7 @@ import org.torproject.descriptor.ServerDescriptor;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.EnumSet;
 import java.util.List;
 import java.util.Scanner;
@@ -462,21 +463,8 @@ public abstract class ServerDescriptorImpl extends DescriptorImpl
   }
 
   private void parseHiddenServiceDirLine(String line, String lineNoOpt,
-      String[] partsNoOpt) throws DescriptorParseException {
-    if (partsNoOpt.length == 1) {
-      this.hiddenServiceDirVersions = new Integer[] { 2 };
-    } else {
-      try {
-        Integer[] result = new Integer[partsNoOpt.length - 1];
-        for (int i = 1; i < partsNoOpt.length; i++) {
-          result[i - 1] = Integer.parseInt(partsNoOpt[i]);
-        }
-        this.hiddenServiceDirVersions = result;
-      } catch (NumberFormatException e) {
-        throw new DescriptorParseException("Illegal value in line '"
-            + line + "'.");
-      }
-    }
+      String[] partsNoOpt) {
+    this.hiddenServiceDir = true;
   }
 
   private void parseProtocolsLine(String line, String lineNoOpt,
@@ -854,12 +842,17 @@ public abstract class ServerDescriptorImpl extends DescriptorImpl
     return this.extraInfoDigestSha256;
   }
 
-  private Integer[] hiddenServiceDirVersions;
+  private boolean hiddenServiceDir;
+
+  @Override
+  public boolean isHiddenServiceDir() {
+    return this.hiddenServiceDir;
+  }
 
   @Override
+  @SuppressWarnings("deprecation")
   public List<Integer> getHiddenServiceDirVersions() {
-    return this.hiddenServiceDirVersions == null ? null
-        : Arrays.asList(this.hiddenServiceDirVersions);
+    return this.hiddenServiceDir ? null : Collections.singletonList(2);
   }
 
   private Integer[] linkProtocolVersions;
diff --git a/src/test/java/org/torproject/descriptor/impl/ServerDescriptorImplTest.java b/src/test/java/org/torproject/descriptor/impl/ServerDescriptorImplTest.java
index f121cb3..b81c3fb 100644
--- a/src/test/java/org/torproject/descriptor/impl/ServerDescriptorImplTest.java
+++ b/src/test/java/org/torproject/descriptor/impl/ServerDescriptorImplTest.java
@@ -482,8 +482,7 @@ public class ServerDescriptorImplTest {
     assertEquals(53470, (int) descriptor.getBandwidthObserved());
     assertEquals("1469D1550738A25B1E7B47CDDBCD7B2899F51B74",
         descriptor.getExtraInfoDigestSha1Hex());
-    assertEquals(Arrays.asList(new Integer[] {2}),
-        descriptor.getHiddenServiceDirVersions());
+    assertTrue(descriptor.isHiddenServiceDir());
     assertEquals("Random Person <nobody AT example dot com>",
         descriptor.getContact());
     assertEquals(Arrays.asList(new String[] {"reject *:*"}),
@@ -1014,7 +1013,7 @@ public class ServerDescriptorImplTest {
       throws DescriptorParseException {
     ServerDescriptor descriptor = DescriptorBuilder
         .createWithHiddenServiceDirLine(null);
-    assertNull(descriptor.getHiddenServiceDirVersions());
+    assertFalse(descriptor.isHiddenServiceDir());
   }
 
   @Test
@@ -1022,8 +1021,7 @@ public class ServerDescriptorImplTest {
       throws DescriptorParseException {
     ServerDescriptor descriptor = DescriptorBuilder
         .createWithHiddenServiceDirLine("hidden-service-dir");
-    assertEquals(Arrays.asList(new Integer[] {2}),
-        descriptor.getHiddenServiceDirVersions());
+    assertTrue(descriptor.isHiddenServiceDir());
   }
 
   @Test
@@ -1031,8 +1029,7 @@ public class ServerDescriptorImplTest {
       throws DescriptorParseException {
     ServerDescriptor descriptor = DescriptorBuilder
         .createWithHiddenServiceDirLine("hidden-service-dir 2 3");
-    assertEquals(Arrays.asList(new Integer[] {2, 3}),
-        descriptor.getHiddenServiceDirVersions());
+    assertTrue(descriptor.isHiddenServiceDir());
   }
 
   @Test

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