[tor-commits] [exonerator/master] Handle parameter issues before database problems.

[karsten@xxxxxxxxxxxxxx]

commit 2dcd0ef1bc3228d3f30c91b53bfe2788ac52ad01
Author: Karsten Loesing <karsten.loesing@xxxxxxx>
Date:   Mon Oct 16 15:00:04 2017 +0200

    Handle parameter issues before database problems.
    
    Discovered after fixing #23844.
---
 .../torproject/exonerator/ExoneraTorServlet.java   | 43 +++++++++++-----------
 1 file changed, 22 insertions(+), 21 deletions(-)

diff --git a/src/main/java/org/torproject/exonerator/ExoneraTorServlet.java b/src/main/java/org/torproject/exonerator/ExoneraTorServlet.java
index 13d5596..b9e2021 100644
--- a/src/main/java/org/torproject/exonerator/ExoneraTorServlet.java
+++ b/src/main/java/org/torproject/exonerator/ExoneraTorServlet.java
@@ -154,6 +154,24 @@ public class ExoneraTorServlet extends HttpServlet {
     if ("".equals(relayIp) && "".equals(timestampStr)) {
       this.writeFooter(out, rb, null, null);
 
+    /* If only one parameter is empty and the other is not, print summary with
+     * warning message and exit. */
+    } else if ("".equals(relayIp)) {
+      this.writeSummaryNoIp(out, rb);
+      this.writeFooter(out, rb, null, null);
+    } else if ("".equals(timestampStr)) {
+      this.writeSummaryNoTimestamp(out, rb);
+      this.writeFooter(out, rb, null, null);
+
+    /* If there's an issue with parsing either of the parameters, print summary
+     * with error message and exit. */
+    } else if (relayIpHasError) {
+      this.writeSummaryInvalidIp(out, rb, ipParameter);
+      this.writeFooter(out, rb, null, null);
+    } else if (timestampHasError) {
+      this.writeSummaryInvalidTimestamp(out, rb, timestampParameter);
+      this.writeFooter(out, rb, null, null);
+
     /* If we were unable to connect to the database, write an error message. */
     } else if (!successfullyConnectedToBackend) {
       this.writeSummaryUnableToConnectToBackend(out, rb);
@@ -165,27 +183,10 @@ public class ExoneraTorServlet extends HttpServlet {
       this.writeSummaryNoData(out, rb);
       this.writeFooter(out, rb, null, null);
 
-    /* If either parameter is empty, print summary with warning message
-     * and exit. */
-    } else if ("".equals(relayIp) || "".equals(timestampStr)) {
-      if ("".equals(relayIp)) {
-        writeSummaryNoIp(out, rb);
-      } else {
-        writeSummaryNoTimestamp(out, rb);
-      }
-      this.writeFooter(out, rb, null, null);
-
-    /* If there's a user error, print summary with exit message and
-     * exit. */
-    } else if (relayIpHasError || timestampHasError || timestampOutOfRange) {
-      if (relayIpHasError) {
-        this.writeSummaryInvalidIp(out, rb, ipParameter);
-      } else if (timestampHasError) {
-        this.writeSummaryInvalidTimestamp(out, rb, timestampParameter);
-      } else if (timestampOutOfRange) {
-        this.writeSummaryTimestampOutsideRange(out, rb, timestampStr,
-            firstDate, lastDate);
-      }
+    /* If the requested date is out of range, tell the user. */
+    } else if (timestampOutOfRange) {
+      this.writeSummaryTimestampOutsideRange(out, rb, timestampStr,
+          firstDate, lastDate);
       this.writeFooter(out, rb, relayIp, timestampStr);
 
     } else if (noRelevantConsensuses) {



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