1 // Copyright 2013 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.
5 #include "chrome/renderer/extensions/extension_localization_peer.h"
7 #include "base/memory/scoped_ptr.h"
8 #include "base/strings/string_util.h"
9 #include "chrome/common/extensions/extension_messages.h"
10 #include "chrome/common/extensions/message_bundle.h"
11 #include "chrome/common/url_constants.h"
12 #include "extensions/common/constants.h"
13 #include "grit/generated_resources.h"
14 #include "net/base/net_errors.h"
15 #include "net/http/http_response_headers.h"
17 ExtensionLocalizationPeer::ExtensionLocalizationPeer(
18 webkit_glue::ResourceLoaderBridge::Peer* peer,
19 IPC::Sender* message_sender,
20 const GURL& request_url)
21 : original_peer_(peer),
22 message_sender_(message_sender),
23 request_url_(request_url) {
26 ExtensionLocalizationPeer::~ExtensionLocalizationPeer() {
30 ExtensionLocalizationPeer*
31 ExtensionLocalizationPeer::CreateExtensionLocalizationPeer(
32 webkit_glue::ResourceLoaderBridge::Peer* peer,
33 IPC::Sender* message_sender,
34 const std::string& mime_type,
35 const GURL& request_url) {
36 // Return NULL if content is not text/css or it doesn't belong to extension
38 return (request_url.SchemeIs(extensions::kExtensionScheme) &&
39 StartsWithASCII(mime_type, "text/css", false)) ?
40 new ExtensionLocalizationPeer(peer, message_sender, request_url) : NULL;
43 void ExtensionLocalizationPeer::OnUploadProgress(
44 uint64 position, uint64 size) {
48 bool ExtensionLocalizationPeer::OnReceivedRedirect(
50 const webkit_glue::ResourceResponseInfo& info,
51 bool* has_new_first_party_for_cookies,
52 GURL* new_first_party_for_cookies) {
57 void ExtensionLocalizationPeer::OnReceivedResponse(
58 const webkit_glue::ResourceResponseInfo& info) {
59 response_info_ = info;
62 void ExtensionLocalizationPeer::OnReceivedData(const char* data,
64 int encoded_data_length) {
65 data_.append(data, data_length);
68 void ExtensionLocalizationPeer::OnCompletedRequest(
70 bool was_ignored_by_handler,
71 bool stale_copy_in_cache,
72 const std::string& security_info,
73 const base::TimeTicks& completion_time,
74 int64 total_transfer_size) {
75 // Make sure we delete ourselves at the end of this call.
76 scoped_ptr<ExtensionLocalizationPeer> this_deleter(this);
78 // Give sub-classes a chance at altering the data.
79 if (error_code != net::OK) {
80 // We failed to load the resource.
81 original_peer_->OnReceivedResponse(response_info_);
82 original_peer_->OnCompletedRequest(net::ERR_ABORTED, false,
83 stale_copy_in_cache, security_info,
91 original_peer_->OnReceivedResponse(response_info_);
93 original_peer_->OnReceivedData(data_.data(),
94 static_cast<int>(data_.size()),
96 original_peer_->OnCompletedRequest(error_code, was_ignored_by_handler,
98 security_info, completion_time,
102 void ExtensionLocalizationPeer::ReplaceMessages() {
103 if (!message_sender_ || data_.empty())
106 if (!request_url_.is_valid())
109 std::string extension_id = request_url_.host();
110 extensions::L10nMessagesMap* l10n_messages =
111 extensions::GetL10nMessagesMap(extension_id);
112 if (!l10n_messages) {
113 extensions::L10nMessagesMap messages;
114 message_sender_->Send(new ExtensionHostMsg_GetMessageBundle(
115 extension_id, &messages));
117 // Save messages we got, so we don't have to ask again.
118 // Messages map is never empty, it contains at least @@extension_id value.
119 extensions::ExtensionToL10nMessagesMap& l10n_messages_map =
120 *extensions::GetExtensionToL10nMessagesMap();
121 l10n_messages_map[extension_id] = messages;
123 l10n_messages = extensions::GetL10nMessagesMap(extension_id);
127 if (extensions::MessageBundle::ReplaceMessagesWithExternalDictionary(
128 *l10n_messages, &data_, &error)) {
129 data_.resize(data_.size());