donau

commit 47fa9f0ee4e189804659599621c0decc7ea9911b
parent f2d932d5b9b19076d742cd913bf7fc2842160316
Author: Christian Grothoff <christian@grothoff.org>
Date:   Tue, 11 Aug 2026 23:55:58 +0200

add HTTP1/3 selection logic

Diffstat:
M
meson.build
 | 
2
+-
M
src/include/donau_service.h
 | 
39
+++++++++++++++++++++++++++++++++++++++
M
src/lib/donau_api_curl_defaults.c
 | 
19
+++++++++++++++++++

3 files changed, 59 insertions(+), 1 deletion(-)
diff --git a/meson.build b/meson.build
@@ -297,7 +297,7 @@ if not get_option('only-doc')
 
 
     libltversions = [
-        ['libdonau', '5:0:0'],
+        ['libdonau', '6:0:1'],
         ['libdonauutil', '0:0:0'],
         ['libdonaujson', '1:0:1'],
         ['libdonaupq', '0:0:0'],
diff --git a/src/include/donau_service.h b/src/include/donau_service.h
@@ -31,6 +31,45 @@
 #include <gnunet/gnunet_curl_lib.h>
 
 
+/**
+ * Global options for HTTP requests made to the donau.
+ */
+enum DONAU_GlobalOptions
+{
+
+  /**
+   * Use defaults.  In particular, this means that HTTP/1.1 is used, as
+   * that is the conservative, best-tested option.
+   */
+  DONAU_GO_NONE = 0,
+
+  /**
+   * Force use of HTTP/1.1.  As HTTP/1.1 is already the default, this
+   * flag only matters to override an otherwise given
+   * #DONAU_GO_ENABLE_HTTP3.
+   */
+  DONAU_GO_FORCE_HTTP1_1 = 1,
+
+  /**
+   * Allow the use of HTTP/2 and HTTP/3.  Note that HTTP/3 is only
+   * actually enabled if the libcurl we run against is deemed suitable
+   * (see #TALER_curl_set_http_version()).  Ignored if
+   * #DONAU_GO_FORCE_HTTP1_1 is also set.
+   */
+  DONAU_GO_ENABLE_HTTP3 = 2,
+
+};
+
+
+/**
+ * Set global options for HTTP requests made with libdonau.
+ *
+ * @param go global options to use
+ */
+void
+DONAU_setup (enum DONAU_GlobalOptions go);
+
+
 /* *********************  /keys *********************** */
 
 
diff --git a/src/lib/donau_api_curl_defaults.c b/src/lib/donau_api_curl_defaults.c
@@ -21,9 +21,24 @@
  * @author Lukas Matyja
  */
 
+#include <taler/taler_curl_lib.h>
+#include "donau_service.h"
 #include "donau_api_curl_defaults.h"
 
 
+/**
+ * Global options for HTTP requests.
+ */
+static enum DONAU_GlobalOptions dglobal_options;
+
+
+void
+DONAU_setup (enum DONAU_GlobalOptions go)
+{
+  dglobal_options = go;
+}
+
+
 CURL *
 DONAU_curl_easy_get_ (const char *url)
 {
@@ -59,5 +74,9 @@ DONAU_curl_easy_get_ (const char *url)
                  curl_easy_setopt (eh,
                                    CURLOPT_TCP_FASTOPEN,
                                    1L));
+  TALER_curl_set_http_version (
+    eh,
+    (0 != (DONAU_GO_ENABLE_HTTP3 & dglobal_options)) &&
+    (0 == (DONAU_GO_FORCE_HTTP1_1 & dglobal_options)));
   return eh;
 }