Centralize the scheme handling for HTTP schemes.

1 files changed, 85 insertions, 0 deletions

diff --git a/src/supplemental/http/http_schemes.c b/src/supplemental/http/http_schemes.c
new file mode 100644
index 00000000..df8b9208
--- /dev/null
+++ b/src/supplemental/http/http_schemes.c
@@ -0,0 +1,85 @@
+//
+// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#include <ctype.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include "core/nng_impl.h"
+
+#include "http_api.h"
+
+static struct {
+	const char *upper;
+	const char *lower;
+} http_schemes[] = {
+	{
+	    .upper = "http",
+	    .lower = "tcp",
+	},
+	{
+	    .upper = "ws",
+	    .lower = "tcp",
+	},
+	{
+	    .upper = "https",
+	    .lower = "tls+tcp",
+	},
+	{
+	    .upper = "wss",
+	    .lower = "tls+tcp",
+	},
+	{
+	    .upper = "http4",
+	    .lower = "tcp4",
+	},
+	{
+	    .upper = "ws4",
+	    .lower = "tcp4",
+	},
+	{
+	    .upper = "http6",
+	    .lower = "tcp6",
+	},
+	{
+	    .upper = "ws6",
+	    .lower = "tcp6",
+	},
+	{
+	    .upper = "https4",
+	    .lower = "tls+tcp4",
+	},
+	{
+	    .upper = "wss4",
+	    .lower = "tls+tcp4",
+	},
+	{
+	    .upper = "https6",
+	    .lower = "tls+tcp6",
+	},
+	{
+	    .upper = "wss6",
+	    .lower = "tls+tcp6",
+	},
+	{
+	    .upper = NULL,
+	    .lower = NULL,
+	},
+};
+
+const char *
+nni_http_stream_scheme(const char *upper)
+{
+	for (int i = 0; http_schemes[i].upper != NULL; i++) {
+		if (strcmp(http_schemes[i].upper, upper) == 0) {
+			return (http_schemes[i].lower);
+		}
+	}
+	return (NULL);
+}
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