1 files changed, 20 insertions, 21 deletions
diff --git a/methods/http.cc b/methods/http.cc
index db1085a2d..278ddb290 100644
--- a/methods/http.cc
+++ b/methods/http.cc
@@ -682,28 +682,27 @@ void HttpMethod::SendReq(FetchItem *Itm,CircleBuf &Out)
    // Just in case.
    if (Itm->Uri.length() >= sizeof(Buf))
        abort();
-       
-   /* Build the request. We include a keep-alive header only for non-proxy
-      requests. This is to tweak old http/1.0 servers that do support keep-alive
-      but not HTTP/1.1 automatic keep-alive. Doing this with a proxy server 
-      will glitch HTTP/1.0 proxies because they do not filter it out and 
-      pass it on, HTTP/1.1 says the connection should default to keep alive
-      and we expect the proxy to do this */
+
+   /* RFC 2616 §5.1.2 requires absolute URIs for requests to proxies,
+      but while its a must for all servers to accept absolute URIs,
+      it is assumed clients will sent an absolute path for non-proxies */
+   std::string requesturi;
    if (Proxy.empty() == true || Proxy.Host.empty())
-   {
-      // see LP bugs #1003633 and #1086997. The "+" is encoded as a workaround
-      // for a amazon S3 bug
-      sprintf(Buf,"GET %s HTTP/1.1\r\nHost: %s\r\nConnection: keep-alive\r\n",
-	      QuoteString(Uri.Path,"+~ ").c_str(),ProperHost.c_str());
-   }
+      requesturi = Uri.Path;
    else
-   {
-      /* Generate a cache control header if necessary. We place a max
-       	 cache age on index files, optionally set a no-cache directive
-       	 and a no-store directive for archives. */
-      sprintf(Buf,"GET %s HTTP/1.1\r\nHost: %s\r\n",
-	      Itm->Uri.c_str(),ProperHost.c_str());
-   }
+      requesturi = Itm->Uri;
+
+   // The "+" is encoded as a workaround for a amazon S3 bug
+   // see LP bugs #1003633 and #1086997.
+   requesturi = QuoteString(requesturi, "+~ ");
+
+   /* Build the request. No keep-alive is included as it is the default
+      in 1.1, can cause problems with proxies, and we are an HTTP/1.1
+      client anyway.
+      C.f. https://tools.ietf.org/wg/httpbis/trac/ticket/158 */
+   sprintf(Buf,"GET %s HTTP/1.1\r\nHost: %s\r\n",
+	   requesturi.c_str(),ProperHost.c_str());
+
    // generate a cache control header (if needed)
    if (_config->FindB("Acquire::http::No-Cache",false) == true) 
    {
@@ -1401,7 +1400,7 @@ bool HttpMethod::AutoDetectProxy()
    char buf[512];
    int InFd = Pipes[0];
    close(Pipes[1]);
-   int res = read(InFd, buf, sizeof(buf));
+   int res = read(InFd, buf, sizeof(buf)-1);
    ExecWait(Process, "ProxyAutoDetect", true);
 
    if (res < 0)