| /* |
| * Copyright 2013 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_caching_headers.h" |
| #include "ngx_list_iterator.h" |
| |
| #include "ngx_pagespeed.h" |
| |
| namespace net_instaweb { |
| |
| bool NgxCachingHeaders::Lookup(const StringPiece& key, |
| StringPieceVector* values) { |
| ngx_table_elt_t* header; |
| NgxListIterator it(&(request_->headers_out.headers.part)); |
| while ((header = it.Next()) != NULL) { |
| if (header->hash != 0 && key == str_to_string_piece(header->key)) { |
| // This will be called multiple times if there are multiple headers with |
| // this name. Each time it will append to values. |
| SplitStringPieceToVector(str_to_string_piece(header->value), ",", values, |
| true /* omit empty strings */); |
| } |
| } |
| |
| if (values->size() == 0) { |
| // No header found with this name. |
| return false; |
| } |
| |
| for (int i = 0, n = values->size(); i < n; ++i) { |
| TrimWhitespace(&((*values)[i])); |
| } |
| |
| return true; |
| } |
| |
| } // namespace net_instaweb |