[tor-commits] [metrics-lib/master] Parse "tunnelled-dir-server" lines in server descriptors.

[karsten@xxxxxxxxxxxxxx]

commit a7a2dc54f27a0c26f2b9eea5d30d56444617377a
Author: Karsten Loesing <karsten.loesing@xxxxxxx>
Date:   Tue Jul 5 10:10:36 2016 +0200

    Parse "tunnelled-dir-server" lines in server descriptors.
    
    Implements #19284.
---
 CHANGELOG.md                                       |  1 +
 .../torproject/descriptor/ServerDescriptor.java    |  8 ++++
 .../descriptor/impl/ServerDescriptorImpl.java      | 22 +++++++++-
 .../descriptor/impl/ServerDescriptorImplTest.java  | 47 ++++++++++++++++++++++
 4 files changed, 76 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 160d405..08ad726 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
      same identity key digest but different algorithms.
    - Be more lenient about digest lengths in directory signatures
      which may be longer or shorter than 20 bytes.
+   - Parse "tunnelled-dir-server" lines in server descriptors.
 
 
 # Changes in version 1.2.0 - 2016-05-31
diff --git a/src/org/torproject/descriptor/ServerDescriptor.java b/src/org/torproject/descriptor/ServerDescriptor.java
index 17c7e82..d1af421 100644
--- a/src/org/torproject/descriptor/ServerDescriptor.java
+++ b/src/org/torproject/descriptor/ServerDescriptor.java
@@ -423,5 +423,13 @@ public interface ServerDescriptor extends Descriptor {
    * @since 1.1.0
    */
   public int getNtorOnionKeyCrosscertSign();
+
+  /**
+   * Return whether the server accepts "tunneled" directory requests using
+   * a BEGIN_DIR cell over the server's OR port.
+   *
+   * @since 1.3.0
+   */
+  public boolean getTunnelledDirServer();
 }
 
diff --git a/src/org/torproject/descriptor/impl/ServerDescriptorImpl.java b/src/org/torproject/descriptor/impl/ServerDescriptorImpl.java
index aa9cc02..1805dca 100644
--- a/src/org/torproject/descriptor/impl/ServerDescriptorImpl.java
+++ b/src/org/torproject/descriptor/impl/ServerDescriptorImpl.java
@@ -38,8 +38,9 @@ public abstract class ServerDescriptorImpl extends DescriptorImpl
         + "eventdns,caches-extra-info,extra-info-digest,"
         + "hidden-service-dir,protocols,allow-single-hop-exits,onion-key,"
         + "signing-key,ipv6-policy,ntor-onion-key,onion-key-crosscert,"
-        + "ntor-onion-key-crosscert,router-sig-ed25519,router-signature,"
-        + "router-digest-sha256,router-digest").split(",")));
+        + "ntor-onion-key-crosscert,tunnelled-dir-server,"
+        + "router-sig-ed25519,router-signature,router-digest-sha256,"
+        + "router-digest").split(",")));
     this.checkAtMostOnceKeywords(atMostOnceKeywords);
     this.checkFirstKeyword("router");
     if (this.getKeywordCount("accept") == 0 &&
@@ -171,6 +172,9 @@ public abstract class ServerDescriptorImpl extends DescriptorImpl
         this.parseNtorOnionKeyCrosscert(line, lineNoOpt, partsNoOpt);
         nextCrypto = "ntor-onion-key-crosscert";
         break;
+      case "tunnelled-dir-server":
+        this.parseTunnelledDirServerLine(line, lineNoOpt, partsNoOpt);
+        break;
       case "-----BEGIN":
         cryptoLines = new ArrayList<>();
         cryptoLines.add(line);
@@ -607,6 +611,14 @@ public abstract class ServerDescriptorImpl extends DescriptorImpl
     }
   }
 
+  private void parseTunnelledDirServerLine(String line, String lineNoOpt,
+      String[] partsNoOpt) throws DescriptorParseException {
+    if (!lineNoOpt.equals("tunnelled-dir-server")) {
+      throw new DescriptorParseException("Illegal line '" + line + "'.");
+    }
+    this.tunnelledDirServer = true;
+  }
+
   private void parseIdentityEd25519CryptoBlock(String cryptoString)
       throws DescriptorParseException {
     String masterKeyEd25519FromIdentityEd25519 =
@@ -963,5 +975,11 @@ public abstract class ServerDescriptorImpl extends DescriptorImpl
   public int getNtorOnionKeyCrosscertSign() {
     return ntorOnionKeyCrosscertSign;
   }
+
+  private boolean tunnelledDirServer;
+  @Override
+  public boolean getTunnelledDirServer() {
+    return this.tunnelledDirServer;
+  }
 }
 
diff --git a/test/org/torproject/descriptor/impl/ServerDescriptorImplTest.java b/test/org/torproject/descriptor/impl/ServerDescriptorImplTest.java
index 292afce..cd3f1a5 100644
--- a/test/org/torproject/descriptor/impl/ServerDescriptorImplTest.java
+++ b/test/org/torproject/descriptor/impl/ServerDescriptorImplTest.java
@@ -212,6 +212,13 @@ public class ServerDescriptorImplTest {
       db.ntorOnionKeyLine = line;
       return new RelayServerDescriptorImpl(db.buildDescriptor(), true);
     }
+    private String tunnelledDirServerLine = null;
+    private static ServerDescriptor createWithTunnelledDirServerLine(
+        String line) throws DescriptorParseException {
+      DescriptorBuilder db = new DescriptorBuilder();
+      db.tunnelledDirServerLine = line;
+      return new RelayServerDescriptorImpl(db.buildDescriptor(), true);
+    }
     private String routerSignatureLines = "router-signature\n"
         + "-----BEGIN SIGNATURE-----\n"
         + "o4j+kH8UQfjBwepUnr99v0ebN8RpzHJ/lqYsTojXHy9kMr1RNI9IDeSzA7PSqT"
@@ -333,6 +340,9 @@ public class ServerDescriptorImplTest {
       if (this.ntorOnionKeyLine != null) {
         sb.append(this.ntorOnionKeyLine).append("\n");
       }
+      if (this.tunnelledDirServerLine != null) {
+        sb.append(this.tunnelledDirServerLine).append("\n");
+      }
       if (this.unrecognizedLine != null) {
         sb.append(this.unrecognizedLine).append("\n");
       }
@@ -1345,6 +1355,43 @@ public class ServerDescriptorImplTest {
         + "Y/XgaHcPIJVa4D55kir9QLH8rEYAaLXuv3c3sm8jYhY\n");
   }
 
+  @Test()
+  public void testTunnelledDirServerTrue()
+      throws DescriptorParseException {
+    ServerDescriptor descriptor = DescriptorBuilder
+        .createWithTunnelledDirServerLine("tunnelled-dir-server");
+    assertTrue(descriptor.getTunnelledDirServer());
+  }
+
+  @Test()
+  public void testTunnelledDirServerFalse()
+      throws DescriptorParseException {
+    ServerDescriptor descriptor = DescriptorBuilder
+        .createWithTunnelledDirServerLine(null);
+    assertFalse(descriptor.getTunnelledDirServer());
+  }
+
+  @Test(expected = DescriptorParseException.class)
+  public void testTunnelledDirServerTypo()
+      throws DescriptorParseException {
+    DescriptorBuilder.createWithTunnelledDirServerLine(
+        "tunneled-dir-server");
+  }
+
+  @Test(expected = DescriptorParseException.class)
+  public void testTunnelledDirServerTwice()
+      throws DescriptorParseException {
+    DescriptorBuilder.createWithTunnelledDirServerLine(
+        "tunnelled-dir-server\ntunnelled-dir-server");
+  }
+
+  @Test(expected = DescriptorParseException.class)
+  public void testTunnelledDirServerArgs()
+      throws DescriptorParseException {
+    DescriptorBuilder.createWithTunnelledDirServerLine(
+        "tunnelled-dir-server 1");
+  }
+
   @Test(expected = DescriptorParseException.class)
   public void testUnrecognizedLineFail()
       throws DescriptorParseException {

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