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/url_constants.h"
10 #include "extensions/common/constants.h"
11 #include "extensions/common/extension_messages.h"
12 #include "extensions/common/message_bundle.h"
13 #include "grit/generated_resources.h"
14 #include "ipc/ipc_sender.h"
15 #include "net/base/net_errors.h"
16 #include "net/http/http_response_headers.h"
18 ExtensionLocalizationPeer::ExtensionLocalizationPeer(
19 content::RequestPeer* peer,
20 IPC::Sender* message_sender,
21 const GURL& request_url)
22 : original_peer_(peer),
23 message_sender_(message_sender),
24 request_url_(request_url) {
27 ExtensionLocalizationPeer::~ExtensionLocalizationPeer() {
31 ExtensionLocalizationPeer*
32 ExtensionLocalizationPeer::CreateExtensionLocalizationPeer(
33 content::RequestPeer* peer,
34 IPC::Sender* message_sender,
35 const std::string& mime_type,
36 const GURL& request_url) {
37 // Return NULL if content is not text/css or it doesn't belong to extension
39 return (request_url.SchemeIs(extensions::kExtensionScheme) &&
40 StartsWithASCII(mime_type, "text/css", false)) ?
41 new ExtensionLocalizationPeer(peer, message_sender, request_url) : NULL;
44 void ExtensionLocalizationPeer::OnUploadProgress(
45 uint64 position, uint64 size) {
49 bool ExtensionLocalizationPeer::OnReceivedRedirect(
51 const webkit_glue::ResourceResponseInfo& info,
52 bool* has_new_first_party_for_cookies,
53 GURL* new_first_party_for_cookies) {
58 void ExtensionLocalizationPeer::OnReceivedResponse(
59 const webkit_glue::ResourceResponseInfo& info) {
60 response_info_ = info;
63 void ExtensionLocalizationPeer::OnReceivedData(const char* data,
65 int encoded_data_length) {
66 data_.append(data, data_length);
69 void ExtensionLocalizationPeer::OnCompletedRequest(
71 bool was_ignored_by_handler,
72 bool stale_copy_in_cache,
73 const std::string& security_info,
74 const base::TimeTicks& completion_time,
75 int64 total_transfer_size) {
76 // Make sure we delete ourselves at the end of this call.
77 scoped_ptr<ExtensionLocalizationPeer> this_deleter(this);
79 // Give sub-classes a chance at altering the data.
80 if (error_code != net::OK) {
81 // We failed to load the resource.
82 original_peer_->OnReceivedResponse(response_info_);
83 original_peer_->OnCompletedRequest(net::ERR_ABORTED, false,
84 stale_copy_in_cache, security_info,
92 original_peer_->OnReceivedResponse(response_info_);
94 original_peer_->OnReceivedData(data_.data(),
95 static_cast<int>(data_.size()),
97 original_peer_->OnCompletedRequest(error_code, was_ignored_by_handler,
99 security_info, completion_time,
100 total_transfer_size);
103 void ExtensionLocalizationPeer::ReplaceMessages() {
104 if (!message_sender_ || data_.empty())
107 if (!request_url_.is_valid())
110 std::string extension_id = request_url_.host();
111 extensions::L10nMessagesMap* l10n_messages =
112 extensions::GetL10nMessagesMap(extension_id);
113 if (!l10n_messages) {
114 extensions::L10nMessagesMap messages;
115 message_sender_->Send(new ExtensionHostMsg_GetMessageBundle(
116 extension_id, &messages));
118 // Save messages we got, so we don't have to ask again.
119 // Messages map is never empty, it contains at least @@extension_id value.
120 extensions::ExtensionToL10nMessagesMap& l10n_messages_map =
121 *extensions::GetExtensionToL10nMessagesMap();
122 l10n_messages_map[extension_id] = messages;
124 l10n_messages = extensions::GetL10nMessagesMap(extension_id);
128 if (extensions::MessageBundle::ReplaceMessagesWithExternalDictionary(
129 *l10n_messages, &data_, &error)) {
130 data_.resize(data_.size());