From b34502af8247606ae3b5693cd3046566b16a3e6d Mon Sep 17 00:00:00 2001
From: John Mark Bell <jmb@netsurf-browser.org>
Date: Fri, 8 Jul 2011 08:38:17 +0000
Subject: Refactor http utilities

svn path=/trunk/netsurf/; revision=12595
---
 utils/http/content-type.c | 128 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 utils/http/content-type.c

(limited to 'utils/http/content-type.c')

diff --git a/utils/http/content-type.c b/utils/http/content-type.c
new file mode 100644
index 000000000..f84da8c8e
--- /dev/null
+++ b/utils/http/content-type.c
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2010 John-Mark Bell <jmb@netsurf-browser.org>
+ *
+ * This file is part of NetSurf, http://www.netsurf-browser.org/
+ *
+ * NetSurf 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; version 2 of the License.
+ *
+ * NetSurf 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "utils/http.h"
+
+#include "utils/http/generics.h"
+#include "utils/http/parameter_internal.h"
+#include "utils/http/primitives.h"
+
+/* See content-type.h for documentation */
+nserror http_parse_content_type(const char *header_value,
+		http_content_type **result)
+{
+	const char *pos = header_value;
+	lwc_string *type;
+	lwc_string *subtype = NULL;
+	http_parameter *params = NULL;
+	char *mime;
+	size_t mime_len;
+	lwc_string *imime;
+	http_content_type *ct;
+	nserror error;
+
+	/* type "/" subtype *( ";" parameter ) */
+
+	http__skip_LWS(&pos);
+
+	error = http__parse_token(&pos, &type);
+	if (error != NSERROR_OK)
+		return error;
+
+	http__skip_LWS(&pos);
+
+	if (*pos != '/') {
+		lwc_string_unref(type);
+		return NSERROR_NOT_FOUND;
+	}
+
+	pos++;
+
+	http__skip_LWS(&pos);
+
+	error = http__parse_token(&pos, &subtype);
+	if (error != NSERROR_OK) {
+		lwc_string_unref(type);
+		return error;
+	}
+
+	http__skip_LWS(&pos);
+
+	if (*pos == ';') {
+		error = http__item_list_parse(&pos, 
+				http__parse_parameter, NULL, &params);
+		if (error != NSERROR_OK && error != NSERROR_NOT_FOUND) {
+			lwc_string_unref(subtype);
+			lwc_string_unref(type);
+			return error;
+		}
+	}
+
+	/* <type> + <subtype> + '/' */
+	mime_len = lwc_string_length(type) + lwc_string_length(subtype) + 1;
+
+	mime = malloc(mime_len + 1);
+	if (mime == NULL) {
+		http_parameter_list_destroy(params);
+		lwc_string_unref(subtype);
+		lwc_string_unref(type);
+		return NSERROR_NOMEM;
+	}
+
+	sprintf(mime, "%.*s/%.*s", 
+		(int) lwc_string_length(type), lwc_string_data(type), 
+		(int) lwc_string_length(subtype), lwc_string_data(subtype));
+
+	lwc_string_unref(subtype);
+	lwc_string_unref(type);
+
+	if (lwc_intern_string(mime, mime_len, &imime) != lwc_error_ok) {
+		http_parameter_list_destroy(params);
+		free(mime);
+		return NSERROR_NOMEM;
+	}
+
+	free(mime);
+
+	ct = malloc(sizeof(*ct));
+	if (ct == NULL) {
+		lwc_string_unref(imime);
+		http_parameter_list_destroy(params);
+		return NSERROR_NOMEM;
+	}
+
+	ct->media_type = imime;
+	ct->parameters = params;
+
+	*result = ct;
+
+	return NSERROR_OK;
+}
+
+/* See content-type.h for documentation */
+void http_content_type_destroy(http_content_type *victim)
+{
+	lwc_string_unref(victim->media_type);
+	http_parameter_list_destroy(victim->parameters);
+	free(victim);
+}
+
-- 
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