1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "content/browser/webui/shared_resources_data_source.h" 6 7 #include "base/logging.h" 8 #include "base/memory/ref_counted_memory.h" 9 #include "base/threading/thread_restrictions.h" 10 #include "content/public/common/content_client.h" 11 #include "content/public/common/url_constants.h" 12 #include "grit/webui_resources_map.h" 13 #include "net/base/mime_util.h" 14 15 namespace { 16 17 int PathToIDR(const std::string& path) { 18 int idr = -1; 19 for (size_t i = 0; i < kWebuiResourcesSize; ++i) { 20 if (kWebuiResources[i].name == path) { 21 idr = kWebuiResources[i].value; 22 break; 23 } 24 } 25 26 return idr; 27 } 28 29 } // namespace 30 31 SharedResourcesDataSource::SharedResourcesDataSource() { 32 } 33 34 SharedResourcesDataSource::~SharedResourcesDataSource() { 35 } 36 37 std::string SharedResourcesDataSource::GetSource() const { 38 return content::kChromeUIResourcesHost; 39 } 40 41 void SharedResourcesDataSource::StartDataRequest( 42 const std::string& path, 43 int render_process_id, 44 int render_view_id, 45 const content::URLDataSource::GotDataCallback& callback) { 46 int idr = PathToIDR(path); 47 DCHECK_NE(-1, idr) << " path: " << path; 48 scoped_refptr<base::RefCountedStaticMemory> bytes( 49 content::GetContentClient()->GetDataResourceBytes(idr)); 50 51 callback.Run(bytes.get()); 52 } 53 54 std::string SharedResourcesDataSource::GetMimeType( 55 const std::string& path) const { 56 // Requests should not block on the disk! On POSIX this goes to disk. 57 // http://code.google.com/p/chromium/issues/detail?id=59849 58 59 base::ThreadRestrictions::ScopedAllowIO allow_io; 60 std::string mime_type; 61 net::GetMimeTypeFromFile(base::FilePath().AppendASCII(path), &mime_type); 62 return mime_type; 63 } 64
