1 files changed, 71 insertions, 0 deletions
diff --git a/apps/http-proxy/src/HTTP1.xMessageFastParser.cc b/apps/http-proxy/src/HTTP1.xMessageFastParser.cc
new file mode 100644
index 000000000..a03871649
--- /dev/null
+++ b/apps/http-proxy/src/HTTP1.xMessageFastParser.cc
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "HTTP1.xMessageFastParser.h"
+
+#include <experimental/algorithm>
+#include <experimental/functional>
+#include <iostream>
+
+std::string HTTPMessageFastParser::numbers = "0123456789";
+std::string HTTPMessageFastParser::content_length = "Content-Length";
+std::string HTTPMessageFastParser::cache_control = "Cache-Control";
+std::string HTTPMessageFastParser::mpd = "mpd";
+std::string HTTPMessageFastParser::connection = "Connection";
+std::string HTTPMessageFastParser::separator = "\r\n\r\n";
+
+std::size_t HTTPMessageFastParser::hasBody(const uint8_t *headers,
+                                           std::size_t length) {
+  const char *buffer = reinterpret_cast<const char *>(headers);
+  const char *begin = buffer;
+  const char *end = buffer + length;
+
+  using std::experimental::make_boyer_moore_searcher;
+  auto it = std::experimental::search(
+      begin, end,
+      make_boyer_moore_searcher(content_length.begin(), content_length.end()));
+
+  if (it != end) {
+    // Read header line
+    auto it2 = std::find_first_of(it, end, numbers.begin(), numbers.end());
+    auto it3 = std::find(it2, end, '\n');
+
+    return std::stoul(std::string(it2, it3));
+  }
+
+  return 0;
+}
+
+bool HTTPMessageFastParser::isMpdRequest(const uint8_t *headers,
+                                         std::size_t length) {
+  const char *buffer = reinterpret_cast<const char *>(headers);
+  const char *begin = buffer;
+  const char *end = buffer + length;
+
+  using std::experimental::make_boyer_moore_searcher;
+  auto it = std::experimental::search(
+      begin, end, make_boyer_moore_searcher(mpd.begin(), mpd.end()));
+
+  if (it != end) {
+    return true;
+  }
+
+  return false;
+}
+
+uint32_t HTTPMessageFastParser::parseCacheControl(const uint8_t *headers,
+                                                  std::size_t length) {
+  return 0;
+}