From 54fc83ee6b910d482948c6ec8185df7aab1b0cb1 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Fri, 11 Jan 2019 21:27:34 +0100
Subject: fix cyclic dependency by combining exchange-lib and auditor-lib
 directories

---
 src/lib/auditor_api_curl_defaults.c | 75 +++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 src/lib/auditor_api_curl_defaults.c

(limited to 'src/lib/auditor_api_curl_defaults.c')

diff --git a/src/lib/auditor_api_curl_defaults.c b/src/lib/auditor_api_curl_defaults.c
new file mode 100644
index 000000000..d5b924008
--- /dev/null
+++ b/src/lib/auditor_api_curl_defaults.c
@@ -0,0 +1,75 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014-2018 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file auditor-lib/curl_defaults.c
+ * @brief curl easy handle defaults
+ * @author Florian Dold
+ */
+
+#include "auditor_api_curl_defaults.h"
+
+
+/**
+ * Get a curl handle with the right defaults
+ * for the exchange lib.  In the future, we might manage a pool of connections here.
+ *
+ * @param url URL to query
+ */
+CURL *
+TAL_curl_easy_get (const char *url)
+{
+  CURL *eh;
+
+  eh = curl_easy_init ();
+
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_ENCODING,
+                                   "deflate"));
+#ifdef CURLOPT_TCP_FASTOPEN
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_TCP_FASTOPEN,
+                                   1L));
+#endif
+  {
+    /* Unfortunately libcurl needs chunk to be alive until after
+    curl_easy_perform.  To avoid manual cleanup, we keep
+    one static list here.  */
+    static struct curl_slist *chunk = NULL;
+    if (NULL == chunk)
+    {
+      /* With POST requests, we do not want to wait for the
+      "100 Continue" response, as our request bodies are usually
+      small and directy sending them saves us a round trip.
+
+      Clearing the expect header like this disables libcurl's
+      default processing of the header.
+
+      Disabling this header is safe for other HTTP methods, thus
+      we don't distinguish further before setting it.  */
+      chunk = curl_slist_append (chunk, "Expect:");
+    }
+    GNUNET_assert (CURLE_OK == curl_easy_setopt (eh, CURLOPT_HTTPHEADER, chunk));
+  }
+
+  return eh;
+}
-- 
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