1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/extensions/api/execute_code_function.h"
#include "chrome/browser/extensions/api/tabs/tabs_constants.h"
#include "chrome/browser/extensions/script_executor.h"
#include "chrome/common/extensions/api/i18n/default_locale_handler.h"
#include "chrome/common/extensions/extension_file_util.h"
#include "chrome/common/extensions/extension_messages.h"
#include "chrome/common/extensions/message_bundle.h"
#include "extensions/browser/file_reader.h"
#include "extensions/common/error_utils.h"
namespace extensions {
namespace keys = tabs_constants;
using api::tabs::InjectDetails;
ExecuteCodeFunction::ExecuteCodeFunction() {
}
ExecuteCodeFunction::~ExecuteCodeFunction() {
}
void ExecuteCodeFunction::DidLoadFile(bool success,
const std::string& data) {
const Extension* extension = GetExtension();
// Check if the file is CSS and needs localization.
if (success &&
ShouldInsertCSS() &&
extension != NULL &&
data.find(MessageBundle::kMessageBegin) != std::string::npos) {
content::BrowserThread::PostTask(
content::BrowserThread::FILE, FROM_HERE,
base::Bind(&ExecuteCodeFunction::LocalizeCSS, this,
data,
extension->id(),
extension->path(),
LocaleInfo::GetDefaultLocale(extension)));
} else {
DidLoadAndLocalizeFile(success, data);
}
}
void ExecuteCodeFunction::LocalizeCSS(
const std::string& data,
const std::string& extension_id,
const base::FilePath& extension_path,
const std::string& extension_default_locale) {
scoped_ptr<SubstitutionMap> localization_messages(
extension_file_util::LoadMessageBundleSubstitutionMap(
extension_path, extension_id, extension_default_locale));
// We need to do message replacement on the data, so it has to be mutable.
std::string css_data = data;
std::string error;
MessageBundle::ReplaceMessagesWithExternalDictionary(*localization_messages,
&css_data,
&error);
// Call back DidLoadAndLocalizeFile on the UI thread. The success parameter
// is always true, because if loading had failed, we wouldn't have had
// anything to localize.
content::BrowserThread::PostTask(
content::BrowserThread::UI, FROM_HERE,
base::Bind(&ExecuteCodeFunction::DidLoadAndLocalizeFile, this,
true, css_data));
}
void ExecuteCodeFunction::DidLoadAndLocalizeFile(bool success,
const std::string& data) {
if (success) {
if (!Execute(data))
SendResponse(false);
} else {
// TODO(viettrungluu): bug: there's no particular reason the path should be
// UTF-8, in which case this may fail.
error_ = ErrorUtils::FormatErrorMessage(keys::kLoadFileError,
resource_.relative_path().AsUTF8Unsafe());
SendResponse(false);
}
}
bool ExecuteCodeFunction::Execute(const std::string& code_string) {
ScriptExecutor* executor = GetScriptExecutor();
if (!executor)
return false;
const Extension* extension = GetExtension();
if (!extension)
return false;
ScriptExecutor::ScriptType script_type = ScriptExecutor::JAVASCRIPT;
if (ShouldInsertCSS())
script_type = ScriptExecutor::CSS;
ScriptExecutor::FrameScope frame_scope =
details_->all_frames.get() && *details_->all_frames ?
ScriptExecutor::ALL_FRAMES :
ScriptExecutor::TOP_FRAME;
UserScript::RunLocation run_at =
UserScript::UNDEFINED;
switch (details_->run_at) {
case InjectDetails::RUN_AT_NONE:
case InjectDetails::RUN_AT_DOCUMENT_IDLE:
run_at = UserScript::DOCUMENT_IDLE;
break;
case InjectDetails::RUN_AT_DOCUMENT_START:
run_at = UserScript::DOCUMENT_START;
break;
case InjectDetails::RUN_AT_DOCUMENT_END:
run_at = UserScript::DOCUMENT_END;
break;
}
CHECK_NE(UserScript::UNDEFINED, run_at);
executor->ExecuteScript(
extension->id(),
script_type,
code_string,
frame_scope,
run_at,
ScriptExecutor::ISOLATED_WORLD,
IsWebView(),
base::Bind(&ExecuteCodeFunction::OnExecuteCodeFinished, this));
return true;
}
bool ExecuteCodeFunction::HasPermission() {
return true;
}
bool ExecuteCodeFunction::RunImpl() {
EXTENSION_FUNCTION_VALIDATE(Init());
if (!details_->code.get() && !details_->file.get()) {
error_ = keys::kNoCodeOrFileToExecuteError;
return false;
}
if (details_->code.get() && details_->file.get()) {
error_ = keys::kMoreThanOneValuesError;
return false;
}
if (!CanExecuteScriptOnPage())
return false;
if (details_->code.get())
return Execute(*details_->code);
if (!details_->file.get())
return false;
resource_ = GetExtension()->GetResource(*details_->file);
if (resource_.extension_root().empty() || resource_.relative_path().empty()) {
error_ = keys::kNoCodeOrFileToExecuteError;
return false;
}
scoped_refptr<FileReader> file_reader(new FileReader(
resource_, base::Bind(&ExecuteCodeFunction::DidLoadFile, this)));
file_reader->Start();
return true;
}
void ExecuteCodeFunction::OnExecuteCodeFinished(
const std::string& error,
int32 on_page_id,
const GURL& on_url,
const ListValue& result) {
if (!error.empty())
SetError(error);
SendResponse(error.empty());
}
} // namespace extensions
|
