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1 // Copyright 2015 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 "mojo/shell/update_fetcher.h" | |
6 | |
7 #include "base/bind.h" | |
8 #include "base/files/file_util.h" | |
9 #include "base/format_macros.h" | |
10 #include "base/message_loop/message_loop.h" | |
11 #include "base/strings/stringprintf.h" | |
12 #include "mojo/common/common_type_converters.h" | |
13 #include "mojo/common/data_pipe_utils.h" | |
14 #include "mojo/common/url_type_converters.h" | |
15 | |
16 namespace mojo { | |
17 namespace shell { | |
18 | |
19 namespace { | |
20 | |
21 void IgnoreResult(bool result) { | |
22 } | |
23 | |
24 } // namespace | |
25 UpdateFetcher::UpdateFetcher(const GURL& url, | |
26 updater::Updater* updater, | |
27 const FetchCallback& loader_callback) | |
28 : Fetcher(loader_callback), url_(url), weak_ptr_factory_(this) { | |
29 DVLOG(1) << "updating: " << url_; | |
30 updater->GetPathForApp( | |
31 url.spec(), | |
32 base::Bind(&UpdateFetcher::OnGetAppPath, weak_ptr_factory_.GetWeakPtr())); | |
33 } | |
34 | |
35 UpdateFetcher::~UpdateFetcher() { | |
36 } | |
37 | |
38 const GURL& UpdateFetcher::GetURL() const { | |
39 return url_; | |
40 } | |
41 | |
42 GURL UpdateFetcher::GetRedirectURL() const { | |
43 return GURL::EmptyGURL(); | |
44 } | |
45 | |
46 GURL UpdateFetcher::GetRedirectReferer() const { | |
47 return GURL::EmptyGURL(); | |
48 } | |
49 URLResponsePtr UpdateFetcher::AsURLResponse(base::TaskRunner* task_runner, | |
50 uint32_t skip) { | |
51 URLResponsePtr response(URLResponse::New()); | |
52 response->url = String::From(url_); | |
53 DataPipe data_pipe; | |
54 response->body = data_pipe.consumer_handle.Pass(); | |
55 int64 file_size; | |
56 if (base::GetFileSize(path_, &file_size)) { | |
57 response->headers = Array<HttpHeaderPtr>(1); | |
58 HttpHeaderPtr header = HttpHeader::New(); | |
59 header->name = "Content-Length"; | |
60 header->value = base::StringPrintf("%" PRId64, file_size); | |
61 response->headers[0] = header.Pass(); | |
62 } | |
63 common::CopyFromFile(path_, data_pipe.producer_handle.Pass(), skip, | |
64 task_runner, base::Bind(&IgnoreResult)); | |
65 return response.Pass(); | |
66 } | |
67 | |
68 void UpdateFetcher::AsPath( | |
69 base::TaskRunner* task_runner, | |
70 base::Callback<void(const base::FilePath&, bool)> callback) { | |
71 base::MessageLoop::current()->PostTask( | |
72 FROM_HERE, base::Bind(callback, path_, base::PathExists(path_))); | |
73 } | |
74 | |
75 std::string UpdateFetcher::MimeType() { | |
76 return ""; | |
77 } | |
78 | |
79 bool UpdateFetcher::HasMojoMagic() { | |
80 std::string magic; | |
81 ReadFileToString(path_, &magic, strlen(kMojoMagic)); | |
82 return magic == kMojoMagic; | |
83 } | |
84 | |
85 bool UpdateFetcher::PeekFirstLine(std::string* line) { | |
86 std::string start_of_file; | |
87 ReadFileToString(path_, &start_of_file, kMaxShebangLength); | |
88 size_t return_position = start_of_file.find('\n'); | |
89 if (return_position == std::string::npos) | |
90 return false; | |
91 *line = start_of_file.substr(0, return_position + 1); | |
92 return true; | |
93 } | |
94 | |
95 void UpdateFetcher::OnGetAppPath(const mojo::String& path) { | |
96 path_ = base::FilePath::FromUTF8Unsafe(path); | |
97 loader_callback_.Run(make_scoped_ptr(this)); | |
98 } | |
99 | |
100 } // namespace shell | |
101 } // namespace mojo | |
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