Initial commit

2018-02-14 15:05:29 +09:00
commit 20f797d2f6
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+/*
+ * Copyright 2012 Google Inc.
+ *
+ * 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.
+ */
+
+// Author: jefftk@google.com (Jeff Kaufman)
+
+#include "ngx_server_context.h"
+
+extern "C" {
+  #include <ngx_http.h>
+}
+
+#include "ngx_pagespeed.h"
+#include "ngx_message_handler.h"
+#include "ngx_rewrite_driver_factory.h"
+#include "ngx_rewrite_options.h"
+#include "net/instaweb/rewriter/public/rewrite_driver.h"
+#include "pagespeed/system/add_headers_fetcher.h"
+#include "pagespeed/system/loopback_route_fetcher.h"
+#include "pagespeed/system/system_request_context.h"
+
+namespace net_instaweb {
+
+NgxServerContext::NgxServerContext(
+    NgxRewriteDriverFactory* factory, StringPiece hostname, int port)
+    : SystemServerContext(factory, hostname, port),
+      ngx_http2_variable_index_(NGX_ERROR) {
+}
+
+NgxServerContext::~NgxServerContext() { }
+
+NgxRewriteOptions* NgxServerContext::config() {
+  return NgxRewriteOptions::DynamicCast(global_options());
+}
+
+SystemRequestContext* NgxServerContext::NewRequestContext(
+    ngx_http_request_t* r) {
+  // Based on ngx_http_variable_server_port.
+  bool port_set = false;
+  int local_port = 0;
+#if (NGX_HAVE_INET6)
+  if (r->connection->local_sockaddr->sa_family == AF_INET6) {
+    local_port = ntohs(reinterpret_cast<struct sockaddr_in6*>(
+        r->connection->local_sockaddr)->sin6_port);
+    port_set = true;
+  }
+#endif
+  if (!port_set) {
+    local_port = ntohs(reinterpret_cast<struct sockaddr_in*>(
+        r->connection->local_sockaddr)->sin_port);
+  }
+
+  ngx_str_t local_ip;
+  u_char addr[NGX_SOCKADDR_STRLEN];
+  local_ip.len = NGX_SOCKADDR_STRLEN;
+  local_ip.data = addr;
+  ngx_int_t rc = ngx_connection_local_sockaddr(r->connection, &local_ip, 0);
+  if (rc != NGX_OK) {
+    local_ip.len = 0;
+  }
+
+  SystemRequestContext* ctx = new SystemRequestContext(
+      thread_system()->NewMutex(), timer(),
+      ps_determine_host(r), local_port, str_to_string_piece(local_ip));
+
+  // See if http2 is in use.
+  if (ngx_http2_variable_index_ >= 0) {
+    ngx_http_variable_value_t* val =
+        ngx_http_get_indexed_variable(r, ngx_http2_variable_index_);
+    if (val != NULL && val->valid) {
+      StringPiece str_val(reinterpret_cast<char*>(val->data), val->len);
+      if (str_val == "h2" || str_val == "h2c") {
+        ctx->set_using_http2(true);
+      }
+    }
+  }
+
+  return ctx;
+}
+
+GoogleString NgxServerContext::FormatOption(StringPiece option_name,
+                                            StringPiece args) {
+  return StrCat("pagespeed ", option_name, " ", args, ";");
+}
+
+}  // namespace net_instaweb