1 // Copyright 2019 The Chromium Embedded Framework Authors. Portions copyright
2 // 2013 The Chromium Authors. All rights reserved. Use of this source code is
3 // governed by a BSD-style license that can be found in the LICENSE file.
4
5 #include "libcef/browser/devtools/devtools_file_manager.h"
6
7 #include "libcef/browser/alloy/alloy_browser_host_impl.h"
8
9 #include "base/bind.h"
10 #include "base/callback.h"
11 #include "base/files/file_path.h"
12 #include "base/files/file_util.h"
13 #include "base/json/json_writer.h"
14 #include "base/lazy_instance.h"
15 #include "base/path_service.h"
16 #include "base/strings/utf_string_conversions.h"
17 #include "base/task/post_task.h"
18 #include "base/task/thread_pool.h"
19 #include "base/threading/sequenced_task_runner_handle.h"
20 #include "base/util/values/values_util.h"
21 #include "base/values.h"
22 #include "chrome/common/pref_names.h"
23 #include "components/prefs/scoped_user_pref_update.h"
24 #include "content/public/browser/web_contents.h"
25
26 namespace {
27
28 base::LazyInstance<base::FilePath>::Leaky g_last_save_path =
29 LAZY_INSTANCE_INITIALIZER;
30
WriteToFile(const base::FilePath & path,const std::string & content)31 void WriteToFile(const base::FilePath& path, const std::string& content) {
32 DCHECK(!path.empty());
33 base::WriteFile(path, content.c_str(), content.length());
34 }
35
AppendToFile(const base::FilePath & path,const std::string & content)36 void AppendToFile(const base::FilePath& path, const std::string& content) {
37 DCHECK(!path.empty());
38 base::AppendToFile(path, content.c_str(), content.size());
39 }
40
41 } // namespace
42
CefDevToolsFileManager(AlloyBrowserHostImpl * browser_impl,PrefService * prefs)43 CefDevToolsFileManager::CefDevToolsFileManager(
44 AlloyBrowserHostImpl* browser_impl,
45 PrefService* prefs)
46 : browser_impl_(browser_impl),
47 prefs_(prefs),
48 file_task_runner_(
49 base::ThreadPool::CreateSequencedTaskRunner({base::MayBlock()})),
50 weak_factory_(this) {}
51
SaveToFile(const std::string & url,const std::string & content,bool save_as)52 void CefDevToolsFileManager::SaveToFile(const std::string& url,
53 const std::string& content,
54 bool save_as) {
55 Save(url, content, save_as,
56 base::Bind(&CefDevToolsFileManager::FileSavedAs,
57 weak_factory_.GetWeakPtr(), url),
58 base::Bind(&CefDevToolsFileManager::CanceledFileSaveAs,
59 weak_factory_.GetWeakPtr(), url));
60 }
61
AppendToFile(const std::string & url,const std::string & content)62 void CefDevToolsFileManager::AppendToFile(const std::string& url,
63 const std::string& content) {
64 Append(url, content,
65 base::Bind(&CefDevToolsFileManager::AppendedTo,
66 weak_factory_.GetWeakPtr(), url));
67 }
68
Save(const std::string & url,const std::string & content,bool save_as,const SaveCallback & saveCallback,const CancelCallback & cancelCallback)69 void CefDevToolsFileManager::Save(const std::string& url,
70 const std::string& content,
71 bool save_as,
72 const SaveCallback& saveCallback,
73 const CancelCallback& cancelCallback) {
74 auto it = saved_files_.find(url);
75 if (it != saved_files_.end() && !save_as) {
76 SaveAsFileSelected(url, content, saveCallback, it->second);
77 return;
78 }
79
80 const base::DictionaryValue* file_map =
81 prefs_->GetDictionary(prefs::kDevToolsEditedFiles);
82 base::FilePath initial_path;
83
84 const base::Value* path_value;
85 if (file_map->Get(base::MD5String(url), &path_value)) {
86 base::Optional<base::FilePath> path = util::ValueToFilePath(*path_value);
87 if (path)
88 initial_path = std::move(*path);
89 }
90
91 if (initial_path.empty()) {
92 GURL gurl(url);
93 std::string suggested_file_name =
94 gurl.is_valid() ? gurl.ExtractFileName() : url;
95
96 if (suggested_file_name.length() > 64)
97 suggested_file_name = suggested_file_name.substr(0, 64);
98
99 if (!g_last_save_path.Pointer()->empty()) {
100 initial_path = g_last_save_path.Pointer()->DirName().AppendASCII(
101 suggested_file_name);
102 } else {
103 // Use the temp directory. It may be an empty value.
104 base::PathService::Get(base::DIR_TEMP, &initial_path);
105 initial_path = initial_path.AppendASCII(suggested_file_name);
106 }
107 }
108
109 CefFileDialogRunner::FileChooserParams params;
110 params.mode = blink::mojom::FileChooserParams::Mode::kSave;
111 if (!initial_path.empty()) {
112 params.default_file_name = initial_path;
113 if (!initial_path.Extension().empty()) {
114 params.accept_types.push_back(CefString(initial_path.Extension()));
115 }
116 }
117
118 browser_impl_->RunFileChooser(
119 params, base::Bind(&CefDevToolsFileManager::SaveAsDialogDismissed,
120 weak_factory_.GetWeakPtr(), url, content, saveCallback,
121 cancelCallback));
122 }
123
SaveAsDialogDismissed(const std::string & url,const std::string & content,const SaveCallback & saveCallback,const CancelCallback & cancelCallback,int selected_accept_filter,const std::vector<base::FilePath> & file_paths)124 void CefDevToolsFileManager::SaveAsDialogDismissed(
125 const std::string& url,
126 const std::string& content,
127 const SaveCallback& saveCallback,
128 const CancelCallback& cancelCallback,
129 int selected_accept_filter,
130 const std::vector<base::FilePath>& file_paths) {
131 if (file_paths.size() == 1) {
132 SaveAsFileSelected(url, content, saveCallback, file_paths[0]);
133 } else {
134 cancelCallback.Run();
135 }
136 }
137
SaveAsFileSelected(const std::string & url,const std::string & content,const SaveCallback & callback,const base::FilePath & path)138 void CefDevToolsFileManager::SaveAsFileSelected(const std::string& url,
139 const std::string& content,
140 const SaveCallback& callback,
141 const base::FilePath& path) {
142 *g_last_save_path.Pointer() = path;
143 saved_files_[url] = path;
144
145 DictionaryPrefUpdate update(prefs_, prefs::kDevToolsEditedFiles);
146 base::DictionaryValue* files_map = update.Get();
147 files_map->SetKey(base::MD5String(url), util::FilePathToValue(path));
148 std::string file_system_path = path.AsUTF8Unsafe();
149 callback.Run(file_system_path);
150 file_task_runner_->PostTask(FROM_HERE,
151 base::BindOnce(&::WriteToFile, path, content));
152 }
153
FileSavedAs(const std::string & url,const std::string & file_system_path)154 void CefDevToolsFileManager::FileSavedAs(const std::string& url,
155 const std::string& file_system_path) {
156 base::Value url_value(url);
157 base::Value file_system_path_value(file_system_path);
158 CallClientFunction("DevToolsAPI.savedURL", &url_value,
159 &file_system_path_value, nullptr);
160 }
161
CanceledFileSaveAs(const std::string & url)162 void CefDevToolsFileManager::CanceledFileSaveAs(const std::string& url) {
163 base::Value url_value(url);
164 CallClientFunction("DevToolsAPI.canceledSaveURL", &url_value, nullptr,
165 nullptr);
166 }
167
Append(const std::string & url,const std::string & content,const AppendCallback & callback)168 void CefDevToolsFileManager::Append(const std::string& url,
169 const std::string& content,
170 const AppendCallback& callback) {
171 auto it = saved_files_.find(url);
172 if (it == saved_files_.end())
173 return;
174 callback.Run();
175 file_task_runner_->PostTask(
176 FROM_HERE, base::BindOnce(&::AppendToFile, it->second, content));
177 }
178
AppendedTo(const std::string & url)179 void CefDevToolsFileManager::AppendedTo(const std::string& url) {
180 base::Value url_value(url);
181 CallClientFunction("DevToolsAPI.appendedToURL", &url_value, nullptr, nullptr);
182 }
183
CallClientFunction(const std::string & function_name,const base::Value * arg1,const base::Value * arg2,const base::Value * arg3)184 void CefDevToolsFileManager::CallClientFunction(
185 const std::string& function_name,
186 const base::Value* arg1,
187 const base::Value* arg2,
188 const base::Value* arg3) {
189 std::string javascript = function_name + "(";
190 if (arg1) {
191 std::string json;
192 base::JSONWriter::Write(*arg1, &json);
193 javascript.append(json);
194 if (arg2) {
195 base::JSONWriter::Write(*arg2, &json);
196 javascript.append(", ").append(json);
197 if (arg3) {
198 base::JSONWriter::Write(*arg3, &json);
199 javascript.append(", ").append(json);
200 }
201 }
202 }
203 javascript.append(");");
204 browser_impl_->web_contents()->GetMainFrame()->ExecuteJavaScript(
205 base::UTF8ToUTF16(javascript), base::NullCallback());
206 }
207