1 files changed, 153 insertions, 0 deletions
diff --git a/utils/http/parameter.c b/utils/http/parameter.c
new file mode 100644
index 000000000..968879d80
--- /dev/null
+++ b/utils/http/parameter.c
@@ -0,0 +1,153 @@
+/*
+ * 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 <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"
+
+/**
+ * Representation of an HTTP parameter
+ */
+struct http_parameter {
+	http__item base;
+
+	lwc_string *name;		/**< Parameter name */
+	lwc_string *value;		/**< Parameter value */
+};
+
+/**
+ * Destructor for an HTTP parameter
+ *
+ * \param self  Parameter to destroy
+ */
+static void http_destroy_parameter(http_parameter *self)
+{
+	lwc_string_unref(self->name);
+	lwc_string_unref(self->value);
+	free(self);
+}
+
+/**
+ * Parse an HTTP parameter
+ *
+ * \param input      Pointer to current input byte. Updated on exit.
+ * \param parameter  Pointer to location to receive on-heap parameter.
+ * \return NSERROR_OK on success,
+ * 	   NSERROR_NOMEM on memory exhaustion,
+ * 	   NSERROR_NOT_FOUND if no parameter could be parsed
+ *
+ * The returned parameter is owned by the caller.
+ */
+nserror http__parse_parameter(const char **input, http_parameter **parameter)
+{
+	const char *pos = *input;
+	lwc_string *name;
+	lwc_string *value;
+	http_parameter *param;
+	nserror error;
+
+	/* token "=" ( token | quoted-string ) */
+
+	error = http__parse_token(&pos, &name);
+	if (error != NSERROR_OK)
+		return error;
+
+	http__skip_LWS(&pos);
+
+	if (*pos != '=') {
+		lwc_string_unref(name);
+		return NSERROR_NOT_FOUND;
+	}
+
+	pos++;
+
+	http__skip_LWS(&pos);
+
+	if (*pos == '"')
+		error = http__parse_quoted_string(&pos, &value);
+	else
+		error = http__parse_token(&pos, &value);
+
+	if (error != NSERROR_OK) {
+		lwc_string_unref(name);
+		return error;
+	}
+
+	param = malloc(sizeof(*param));
+	if (param == NULL) {
+		lwc_string_unref(value);
+		lwc_string_unref(name);
+		return NSERROR_NOMEM;
+	}
+
+	HTTP__ITEM_INIT(param, NULL, http_destroy_parameter);
+	param->name = name;
+	param->value = value;
+
+	*parameter = param;
+	*input = pos;
+
+	return NSERROR_OK;
+}
+
+/* See parameter.h for documentation */
+nserror http_parameter_list_find_item(const http_parameter *list,
+		lwc_string *name, lwc_string **value)
+{
+	bool match;
+
+	while (list != NULL) {
+		if (lwc_string_caseless_isequal(name, list->name, 
+				&match) == lwc_error_ok && match)
+			break;
+
+		list = (http_parameter *) list->base.next;
+	}
+
+	if (list == NULL)
+		return NSERROR_NOT_FOUND;
+
+	*value = lwc_string_ref(list->value);
+
+	return NSERROR_OK;
+}
+
+/* See parameter.h for documentation */
+const http_parameter *http_parameter_list_iterate(const http_parameter *cur,
+		lwc_string **name, lwc_string **value)
+{
+	if (cur == NULL)
+		return NULL;
+
+	*name = lwc_string_ref(cur->name);
+	*value = lwc_string_ref(cur->value);
+
+	return (http_parameter *) cur->base.next;
+}
+
+/* See parameter.h for documentation */
+void http_parameter_list_destroy(http_parameter *list)
+{
+	http__item_list_destroy(list);
+}
+