[tor-commits] [metrics-lib/master] Add parsing support for ntor-onion-key line.

[karsten@xxxxxxxxxxxxxx]

commit 785fd43246dfd9a229951e701d30f4319b7a8f37
Author: Karsten Loesing <karsten.loesing@xxxxxxx>
Date:   Mon Jan 7 05:23:22 2013 +0100

    Add parsing support for ntor-onion-key line.
    
    Spotted by atagar; see #7867.
---
 .../torproject/descriptor/ServerDescriptor.java    |    4 ++
 .../descriptor/impl/ServerDescriptorImpl.java      |   17 ++++++-
 .../descriptor/impl/ServerDescriptorImplTest.java  |   50 ++++++++++++++++++++
 3 files changed, 70 insertions(+), 1 deletions(-)

diff --git a/src/org/torproject/descriptor/ServerDescriptor.java b/src/org/torproject/descriptor/ServerDescriptor.java
index 01c3672..4180adc 100644
--- a/src/org/torproject/descriptor/ServerDescriptor.java
+++ b/src/org/torproject/descriptor/ServerDescriptor.java
@@ -143,5 +143,9 @@ public interface ServerDescriptor extends Descriptor {
   /* Return the port list of the IPv6 port summary or null if the server
    * descriptor didn't contain an IPv6 port summary line. */
   public String getIpv6PortList();
+
+  /* Return the ntor onion key base64 string with padding omitted, or null
+   * if the server descriptors didn't contain an ntor onion key line. */
+  public String getNtorOnionKey();
 }
 
diff --git a/src/org/torproject/descriptor/impl/ServerDescriptorImpl.java b/src/org/torproject/descriptor/impl/ServerDescriptorImpl.java
index b25d17a..1fb39f5 100644
--- a/src/org/torproject/descriptor/impl/ServerDescriptorImpl.java
+++ b/src/org/torproject/descriptor/impl/ServerDescriptorImpl.java
@@ -49,7 +49,7 @@ public class ServerDescriptorImpl extends DescriptorImpl
         + "read-history,write-history,eventdns,caches-extra-info,"
         + "extra-info-digest,hidden-service-dir,protocols,"
         + "allow-single-hop-exits,onion-key,signing-key,ipv6-policy,"
-        + "router-signature").split(",")));
+        + "ntor-onion-key,router-signature").split(",")));
     this.checkAtMostOnceKeywords(atMostOnceKeywords);
     this.checkFirstKeyword("router");
     if (this.getKeywordCount("accept") == 0 &&
@@ -129,6 +129,8 @@ public class ServerDescriptorImpl extends DescriptorImpl
         this.parseRouterDigestLine(line, lineNoOpt, partsNoOpt);
       } else if (keyword.equals("ipv6-policy")) {
         this.parseIpv6PolicyLine(line, lineNoOpt, partsNoOpt);
+      } else if (keyword.equals("ntor-onion-key")) {
+        this.parseNtorOnionKeyLine(line, lineNoOpt, partsNoOpt);
       } else if (line.startsWith("-----BEGIN")) {
         crypto = new StringBuilder();
         crypto.append(line + "\n");
@@ -500,6 +502,14 @@ public class ServerDescriptorImpl extends DescriptorImpl
     }
   }
 
+  private void parseNtorOnionKeyLine(String line, String lineNoOpt,
+      String[] partsNoOpt) throws DescriptorParseException {
+    if (partsNoOpt.length != 2) {
+      throw new DescriptorParseException("Illegal line '" + line + "'.");
+    }
+    this.ntorOnionKey = partsNoOpt[1].replaceAll("=",  "");
+  }
+
   private void calculateDigest() throws DescriptorParseException {
     if (this.serverDescriptorDigest != null) {
       /* We already learned the descriptor digest of this bridge
@@ -690,5 +700,10 @@ public class ServerDescriptorImpl extends DescriptorImpl
   public String getIpv6PortList() {
     return this.ipv6PortList;
   }
+
+  private String ntorOnionKey;
+  public String getNtorOnionKey() {
+    return this.ntorOnionKey;
+  }
 }
 
diff --git a/test/org/torproject/descriptor/impl/ServerDescriptorImplTest.java b/test/org/torproject/descriptor/impl/ServerDescriptorImplTest.java
index a5a7d84..5bd73af 100644
--- a/test/org/torproject/descriptor/impl/ServerDescriptorImplTest.java
+++ b/test/org/torproject/descriptor/impl/ServerDescriptorImplTest.java
@@ -188,6 +188,13 @@ public class ServerDescriptorImplTest {
       db.ipv6PolicyLine = line;
       return new ServerDescriptorImpl(db.buildDescriptor(), true);
     }
+    private String ntorOnionKeyLine = null;
+    private static ServerDescriptor createWithNtorOnionKeyLine(
+        String line) throws DescriptorParseException {
+      DescriptorBuilder db = new DescriptorBuilder();
+      db.ntorOnionKeyLine = line;
+      return new ServerDescriptorImpl(db.buildDescriptor(), true);
+    }
     private String routerSignatureLines = "router-signature\n"
         + "-----BEGIN SIGNATURE-----\n"
         + "o4j+kH8UQfjBwepUnr99v0ebN8RpzHJ/lqYsTojXHy9kMr1RNI9IDeSzA7PSqT"
@@ -274,6 +281,9 @@ public class ServerDescriptorImplTest {
       if (this.ipv6PolicyLine != null) {
         sb.append(this.ipv6PolicyLine + "\n");
       }
+      if (this.ntorOnionKeyLine != null) {
+        sb.append(this.ntorOnionKeyLine + "\n");
+      }
       if (this.unrecognizedLine != null) {
         sb.append(this.unrecognizedLine + "\n");
       }
@@ -1188,6 +1198,46 @@ public class ServerDescriptorImplTest {
         + "ipv6-policy accept 80,1194,1220,1293");
   }
 
+  @Test()
+  public void testNtorOnionKeyLine() throws DescriptorParseException {
+    ServerDescriptor descriptor = DescriptorBuilder.
+        createWithNtorOnionKeyLine("ntor-onion-key "
+        + "Y/XgaHcPIJVa4D55kir9QLH8rEYAaLXuv3c3sm8jYhY=");
+    assertEquals("Y/XgaHcPIJVa4D55kir9QLH8rEYAaLXuv3c3sm8jYhY",
+        descriptor.getNtorOnionKey());
+  }
+
+  @Test()
+  public void testNtorOnionKeyLineNoPadding()
+      throws DescriptorParseException {
+    ServerDescriptor descriptor = DescriptorBuilder.
+        createWithNtorOnionKeyLine("ntor-onion-key "
+        + "Y/XgaHcPIJVa4D55kir9QLH8rEYAaLXuv3c3sm8jYhY");
+    assertEquals("Y/XgaHcPIJVa4D55kir9QLH8rEYAaLXuv3c3sm8jYhY",
+        descriptor.getNtorOnionKey());
+  }
+
+  @Test(expected = DescriptorParseException.class)
+  public void testNtorOnionKeyLineNoKey()
+      throws DescriptorParseException {
+    DescriptorBuilder.createWithNtorOnionKeyLine("ntor-onion-key ");
+  }
+
+  @Test(expected = DescriptorParseException.class)
+  public void testNtorOnionKeyLineTwoKeys()
+      throws DescriptorParseException {
+    DescriptorBuilder.createWithNtorOnionKeyLine("ntor-onion-key "
+        + "Y/XgaHcPIJVa4D55kir9QLH8rEYAaLXuv3c3sm8jYhY "
+        + "Y/XgaHcPIJVa4D55kir9QLH8rEYAaLXuv3c3sm8jYhY");
+  }
+
+  @Test(expected = DescriptorParseException.class)
+  public void testTwoNtorOnionKeyLines() throws DescriptorParseException {
+    DescriptorBuilder.createWithNtorOnionKeyLine("ntor-onion-key "
+        + "Y/XgaHcPIJVa4D55kir9QLH8rEYAaLXuv3c3sm8jYhY\nntor-onion-key "
+        + "Y/XgaHcPIJVa4D55kir9QLH8rEYAaLXuv3c3sm8jYhY\n");
+  }
+
   @Test(expected = DescriptorParseException.class)
   public void testUnrecognizedLineFail()
       throws DescriptorParseException {

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