From aeb9f5126bd6926c626d7b598bb4335f6fb867b5 Mon Sep 17 00:00:00 2001
From: Jan Steemann <jan@arangodb.com>
Date: Tue, 25 Sep 2012 09:27:43 +0200
Subject: [PATCH 1/2] fixed seeding of rng

---
 lib/Basics/Random.cpp | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/lib/Basics/Random.cpp b/lib/Basics/Random.cpp
index aaa8daaff1..cf0a30bebe 100644
--- a/lib/Basics/Random.cpp
+++ b/lib/Basics/Random.cpp
@@ -376,15 +376,12 @@ namespace triagens {
       // MERSENNE
       struct UniformIntegerMersenne : public UniformIntegerImpl {
         int32_t random (int32_t left, int32_t right) {
-          RandMT randomGenerator((uint32_t) time(NULL));
+          RandMT randomGenerator((uint32_t) RandomHelper::RandomDevice::getSeed());
 
-          int32_t result = ((int32_t) randomGenerator.randomMT()) + left;
-
-          if (result > right) {
-            result %= right;
-            result += left;
-          }
+          const int32_t range = right - left + 1;
+          int32_t result = ((int32_t) randomGenerator.randomMT());
 
+          result = (int32_t) abs(result % range) + left;
           return result;
         }
       };

From bf7ddd5356153de68dc3b2937c30f2ccc8795498 Mon Sep 17 00:00:00 2001
From: Jan Steemann <jan@arangodb.com>
Date: Tue, 25 Sep 2012 09:41:29 +0200
Subject: [PATCH 2/2] added X-Arango headers

---
 arangod/RestHandler/RestBatchHandler.cpp | 12 ++++++++++--
 lib/Rest/HttpResponsePart.cpp            | 15 ++++++++++-----
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/arangod/RestHandler/RestBatchHandler.cpp b/arangod/RestHandler/RestBatchHandler.cpp
index 9d45f4143c..6b92e8b7b4 100644
--- a/arangod/RestHandler/RestBatchHandler.cpp
+++ b/arangod/RestHandler/RestBatchHandler.cpp
@@ -210,13 +210,21 @@ Handler::status_e RestBatchHandler::execute() {
       return Handler::HANDLER_FAILED; 
     }
 
+    HttpResponsePart* partResponse = dynamic_cast<HttpResponsePart*>(handler->getResponse());
+    if (partResponse == 0) {
+      delete handler;
+      generateError(HttpResponse::BAD, TRI_ERROR_INTERNAL, "an error occured during part request processing");
+
+      return Handler::HANDLER_FAILED;
+    }
+
     // append the boundary for this subpart
     _response->body().appendText(boundary + "\r\n");
 
     // append the response header
-    handler->getResponse()->writeHeader(&_response->body());
+    partResponse->writeHeader(&_response->body());
     // append the response body
-    _response->body().appendText(handler->getResponse()->body());
+    _response->body().appendText(partResponse->body());
     _response->body().appendText("\r\n");
 
     delete handler;
diff --git a/lib/Rest/HttpResponsePart.cpp b/lib/Rest/HttpResponsePart.cpp
index b1618a0bc5..b819a69a64 100644
--- a/lib/Rest/HttpResponsePart.cpp
+++ b/lib/Rest/HttpResponsePart.cpp
@@ -79,7 +79,7 @@ HttpResponsePart::~HttpResponsePart () {
 ////////////////////////////////////////////////////////////////////////////////
 
 void HttpResponsePart::writeHeader (StringBuffer* output) {
-  output->appendText("HTTP/1.1 ");
+  output->appendText("X-Arango-status: ");
   output->appendText(responseString(_code));
   output->appendText("\r\n");
   
@@ -108,7 +108,12 @@ void HttpResponsePart::writeHeader (StringBuffer* output) {
     }
     
     char const* value = begin->_value;
-    
+   
+    if (! TRI_EqualString(key, "content-type")) {
+      // for all headers but content-type, we'll add the prefix "X-Arango-"
+      output->appendText("X-Arango-");
+    } 
+
     output->appendText(key);
     output->appendText(": ");
     output->appendText(value);
@@ -116,16 +121,16 @@ void HttpResponsePart::writeHeader (StringBuffer* output) {
   }
   
   if (seenTransferEncoding && transferEncoding == "chunked") {
-    output->appendText("transfer-encoding: chunked\r\n\r\n");
+    output->appendText("X-Arango-transfer-encoding: chunked\r\n\r\n");
   }
   else {
     if (seenTransferEncoding) {
-      output->appendText("transfer-encoding: ");
+      output->appendText("X-Arango-transfer-encoding: ");
       output->appendText(transferEncoding);
       output->appendText("\r\n");
     }
    
-    output->appendText("content-length: ");
+    output->appendText("X-Arango-content-length: ");
     
     if (_isHeadResponse) {
       output->appendInteger(_bodySize);