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[tor-commits] [onionoo/release] Support comma-separated list in "as" parameter.



commit a6e08a33b95393dc29ace64bea8c50d808160e24
Author: Karsten Loesing <karsten.loesing@xxxxxxx>
Date:   Tue Jul 24 21:54:19 2018 +0200

    Support comma-separated list in "as" parameter.
    
    Implements the last part of #23713.
---
 CHANGELOG.md                                       |  2 ++
 .../torproject/onionoo/server/RequestHandler.java  | 32 +++++++++-------------
 .../torproject/onionoo/server/ResourceServlet.java | 14 +++++++---
 .../onionoo/server/ResourceServletTest.java        |  6 ++++
 4 files changed, 31 insertions(+), 23 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 89b36eb..d024d83 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@
    - Add "as" field as a copy of the "as_number" field in preparation
      of removing the "as_number" field in the future.
    - Add new "as_name" parameter to search relays by AS name.
+   - Support a comma-separated list of AS numbers in the "as"
+     parameter.
 
 
 # Changes in version 6.1-1.15.0 - 2018-07-16
diff --git a/src/main/java/org/torproject/onionoo/server/RequestHandler.java b/src/main/java/org/torproject/onionoo/server/RequestHandler.java
index e401ae9..33c35e1 100644
--- a/src/main/java/org/torproject/onionoo/server/RequestHandler.java
+++ b/src/main/java/org/torproject/onionoo/server/RequestHandler.java
@@ -72,9 +72,9 @@ public class RequestHandler {
     this.country = country;
   }
 
-  private String as;
+  private String[] as;
 
-  public void setAs(String as) {
+  public void setAs(String[] as) {
     this.as = as;
   }
 
@@ -408,29 +408,23 @@ public class RequestHandler {
   }
 
   private void filterByAsNumber() {
-    if (this.as == null) {
+    if (this.as == null || 0 == this.as.length) {
       /* Not filtering by AS number. */
       return;
     }
-    String asNumber = this.as.toUpperCase();
-    if (!asNumber.startsWith("AS")) {
-      asNumber = "AS" + asNumber;
-    }
-    if (!this.nodeIndex.getRelaysByAsNumber().containsKey(asNumber)) {
-      this.filteredRelays.clear();
-    } else {
-      Set<String> relaysWithAsNumber =
-          this.nodeIndex.getRelaysByAsNumber().get(asNumber);
-      Set<String> removeRelays = new HashSet<>();
-      for (String fingerprint : this.filteredRelays.keySet()) {
-        if (!relaysWithAsNumber.contains(fingerprint)) {
-          removeRelays.add(fingerprint);
+    Map<String, SummaryDocument> matchingRelays = new HashMap<>();
+    for (String asNumber : this.as) {
+      if (this.nodeIndex.getRelaysByAsNumber().containsKey(asNumber)) {
+        for (String fingerprint
+            : this.nodeIndex.getRelaysByAsNumber().get(asNumber)) {
+          if (this.filteredRelays.containsKey(fingerprint)) {
+            matchingRelays.put(fingerprint,
+                this.filteredRelays.get(fingerprint));
+          }
         }
       }
-      for (String fingerprint : removeRelays) {
-        this.filteredRelays.remove(fingerprint);
-      }
     }
+    this.filteredRelays = matchingRelays;
     this.filteredBridges.clear();
   }
 
diff --git a/src/main/java/org/torproject/onionoo/server/ResourceServlet.java b/src/main/java/org/torproject/onionoo/server/ResourceServlet.java
index cf480d3..57c8f83 100644
--- a/src/main/java/org/torproject/onionoo/server/ResourceServlet.java
+++ b/src/main/java/org/torproject/onionoo/server/ResourceServlet.java
@@ -238,7 +238,7 @@ public class ResourceServlet extends HttpServlet {
       rh.setCountry(countryCodeParameter);
     }
     if (parameterMap.containsKey("as")) {
-      String asNumberParameter = this.parseAsNumberParameter(
+      String[] asNumberParameter = this.parseAsNumberParameter(
           parameterMap.get("as"));
       if (asNumberParameter == null) {
         response.sendError(HttpServletResponse.SC_BAD_REQUEST);
@@ -502,14 +502,20 @@ public class ResourceServlet extends HttpServlet {
   }
 
   private static Pattern asNumberParameterPattern =
-      Pattern.compile("^[asAS]{0,2}[0-9]{1,10}$");
+      Pattern.compile("((^|,)([aA][sS])?[1-9][0-9]{0,9})+$");
 
-  private String parseAsNumberParameter(String parameter) {
+  private String[] parseAsNumberParameter(String parameter) {
     if (!asNumberParameterPattern.matcher(parameter).matches()) {
       /* AS number contains illegal character(s). */
       return null;
     }
-    return parameter;
+    String[] parameterParts = parameter.toUpperCase().split(",");
+    String[] parsedParameter = new String[parameterParts.length];
+    for (int i = 0; i < parameterParts.length; i++) {
+      parsedParameter[i] = (!parameterParts[i].startsWith("AS") ? "AS" : "")
+          + parameterParts[i];
+    }
+    return parsedParameter;
   }
 
   private String[] parseAsNameParameter(String parameter) {
diff --git a/src/test/java/org/torproject/onionoo/server/ResourceServletTest.java b/src/test/java/org/torproject/onionoo/server/ResourceServletTest.java
index 37f7923..e176d9b 100644
--- a/src/test/java/org/torproject/onionoo/server/ResourceServletTest.java
+++ b/src/test/java/org/torproject/onionoo/server/ResourceServletTest.java
@@ -1174,6 +1174,12 @@ public class ResourceServletTest {
   }
 
   @Test(timeout = 100)
+  public void testAs8767Or7922() {
+    this.assertSummaryDocument("/summary?as=8767,7922", 2,
+        new String[] { "TorkaZ", "Ferrari458" }, 0, null);
+  }
+
+  @Test(timeout = 100)
   public void testAsNameComcast() {
     this.assertSummaryDocument("/summary?as_name=Comcast", 1, null, 0, null);
   }



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