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[chromium-blink-merge.git] / content / child / ftp_directory_listing_response_delegate.cc
blobee6507c7ffde34917abe7a2b58d6fe80bb2abb9a
1 // Copyright 2014 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 "content/child/ftp_directory_listing_response_delegate.h"
7 #include <vector>
9 #include "base/i18n/icu_encoding_detection.h"
10 #include "base/i18n/icu_string_conversions.h"
11 #include "base/logging.h"
12 #include "base/strings/string_util.h"
13 #include "base/strings/sys_string_conversions.h"
14 #include "base/strings/utf_string_conversions.h"
15 #include "base/time/time.h"
16 #include "content/child/weburlresponse_extradata_impl.h"
17 #include "net/base/escape.h"
18 #include "net/base/net_errors.h"
19 #include "net/base/net_util.h"
20 #include "net/ftp/ftp_directory_listing_parser.h"
21 #include "third_party/WebKit/public/platform/WebURL.h"
22 #include "third_party/WebKit/public/platform/WebURLLoaderClient.h"
24 using blink::WebURLLoader;
25 using blink::WebURLLoaderClient;
26 using blink::WebURLResponse;
27 using net::FtpDirectoryListingEntry;
29 namespace {
31 base::string16 ConvertPathToUTF16(const std::string& path) {
32 // Per RFC 2640, FTP servers should use UTF-8 or its proper subset ASCII,
33 // but many old FTP servers use legacy encodings. Try UTF-8 first.
34 if (base::IsStringUTF8(path))
35 return base::UTF8ToUTF16(path);
37 // Try detecting the encoding. The sample is rather small though, so it may
38 // fail.
39 std::string encoding;
40 if (base::DetectEncoding(path, &encoding) && !encoding.empty()) {
41 base::string16 path_utf16;
42 if (base::CodepageToUTF16(path, encoding.c_str(),
43 base::OnStringConversionError::SUBSTITUTE,
44 &path_utf16)) {
45 return path_utf16;
49 // Use system native encoding as the last resort.
50 return base::WideToUTF16(base::SysNativeMBToWide(path));
53 } // namespace
55 namespace content {
57 FtpDirectoryListingResponseDelegate::FtpDirectoryListingResponseDelegate(
58 WebURLLoaderClient* client,
59 WebURLLoader* loader,
60 const WebURLResponse& response)
61 : client_(client),
62 loader_(loader) {
63 if (response.extraData()) {
64 // extraData can be NULL during tests.
65 WebURLResponseExtraDataImpl* extra_data =
66 static_cast<WebURLResponseExtraDataImpl*>(response.extraData());
67 extra_data->set_is_ftp_directory_listing(true);
69 Init(response.url());
72 void FtpDirectoryListingResponseDelegate::Cancel() {
73 client_ = NULL;
74 loader_ = NULL;
77 void FtpDirectoryListingResponseDelegate::OnReceivedData(const char* data,
78 int data_len) {
79 buffer_.append(data, data_len);
82 void FtpDirectoryListingResponseDelegate::OnCompletedRequest() {
83 std::vector<FtpDirectoryListingEntry> entries;
84 int rv = -1;
85 #if !defined(DISABLE_FTP_SUPPORT)
86 rv = net::ParseFtpDirectoryListing(buffer_, base::Time::Now(), &entries);
87 #endif
88 if (rv != net::OK) {
89 SendDataToClient("<script>onListingParsingError();</script>\n");
90 return;
92 for (size_t i = 0; i < entries.size(); i++) {
93 const FtpDirectoryListingEntry& entry = entries[i];
95 // Skip the current and parent directory entries in the listing. Our header
96 // always includes them.
97 if (base::EqualsASCII(entry.name, ".") ||
98 base::EqualsASCII(entry.name, ".."))
99 continue;
101 bool is_directory = (entry.type == FtpDirectoryListingEntry::DIRECTORY);
102 int64 size = entry.size;
103 if (entry.type != FtpDirectoryListingEntry::FILE)
104 size = 0;
105 SendDataToClient(net::GetDirectoryListingEntry(
106 entry.name, entry.raw_name, is_directory, size, entry.last_modified));
110 void FtpDirectoryListingResponseDelegate::Init(const GURL& response_url) {
111 net::UnescapeRule::Type unescape_rules = net::UnescapeRule::SPACES |
112 net::UnescapeRule::URL_SPECIAL_CHARS;
113 std::string unescaped_path = net::UnescapeURLComponent(response_url.path(),
114 unescape_rules);
115 SendDataToClient(net::GetDirectoryListingHeader(
116 ConvertPathToUTF16(unescaped_path)));
118 // If this isn't top level directory (i.e. the path isn't "/",)
119 // add a link to the parent directory.
120 if (response_url.path().length() > 1) {
121 SendDataToClient(net::GetDirectoryListingEntry(
122 base::ASCIIToUTF16(".."), std::string(), false, 0, base::Time()));
126 void FtpDirectoryListingResponseDelegate::SendDataToClient(
127 const std::string& data) {
128 if (client_)
129 client_->didReceiveData(loader_, data.data(), data.length(), -1);
132 } // namespace content