✨ feat(integration decoders): http and glimpse_detector

compile pass, todo test

decoders/glimpse_detector/libprotoident/tcp/lpi_http.cc

@@ -0,0 +1,106 @@
+/*
+ *
+ * Copyright (c) 2011-2016 The University of Waikato, Hamilton, New Zealand.
+ * All rights reserved.
+ *
+ * This file is part of libprotoident.
+ *
+ * This code has been developed by the University of Waikato WAND
+ * research group. For further information please see http://www.wand.net.nz/
+ *
+ * libprotoident is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * libprotoident 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ */
+
+#include <string.h>
+
+#include "libprotoident.h"
+#include "proto_manager.h"
+#include "proto_common.h"
+
+
+static inline bool match_http_response(uint32_t payload, uint32_t len) {
+
+        if (len == 0)
+                return true;
+        if (len == 1 && MATCH(payload, 'H', 0x00, 0x00, 0x00))
+                return true;
+        if (MATCHSTR(payload, "HTTP")) {
+                return true;
+        }
+
+        /* UNKNOWN seems to be a valid response from some servers, e.g.
+         * mini_httpd */
+        if (MATCHSTR(payload, "UNKN")) {
+                return true;
+        }
+
+        return false;
+}
+
+static inline bool match_http(lpi_data_t *data, lpi_module_t *mod) {
+
+
+        /* Need to rule out protocols using HTTP-style commands to do 
+         * exchanges. These protocols primarily use GET, rather than other
+         * HTTP requests */
+        if (!valid_http_port(data)) {
+                if (match_str_either(data, "GET "))
+                        return false;
+        }
+
+        if (match_http_request(data->payload[0], data->payload_len[0])) {
+                if (match_http_response(data->payload[1], data->payload_len[1]))
+                        return true;
+                if (match_http_request(data->payload[1], data->payload_len[1]))
+                        return true;
+                if (match_file_header(data->payload[1]) &&
+                                data->payload_len[0] != 0)
+                        return true;
+        }
+
+        if (match_http_request(data->payload[1], data->payload_len[1])) {
+                if (match_http_response(data->payload[0], data->payload_len[0]))
+                        return true;
+                if (match_file_header(data->payload[0]) &&
+                                data->payload_len[1] != 0)
+                        return true;
+        }
+
+        /* Allow responses in both directions, even if this is doesn't entirely
+         * make sense :/ */
+        if (match_http_response(data->payload[0], data->payload_len[0])) {
+                if (match_http_response(data->payload[1], data->payload_len[1]))
+                        return true;
+        }
+
+
+        return false;
+
+
+}
+
+static lpi_module_t lpi_http = {
+	LPI_PROTO_HTTP,
+	LPI_CATEGORY_WEB,
+	"HTTP",
+	2,	
+	match_http
+};
+
+void register_http(LPIModuleMap *mod_map) {
+	register_protocol(&lpi_http, mod_map);
+}
+