ftp_directory_listing_parser_netware.cc revision 868fa2fe829687343ffae624259930155e16dbd8 
1// Copyright (c) 2011 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 "net/ftp/ftp_directory_listing_parser_netware.h"
6
7#include <vector>
8
9#include "base/string_number_conversions.h"
10#include "base/string_util.h"
11#include "base/strings/string_split.h"
12#include "base/strings/utf_string_conversions.h"
13#include "net/ftp/ftp_directory_listing_parser.h"
14#include "net/ftp/ftp_util.h"
15
16namespace {
17
18bool LooksLikeNetwarePermissionsListing(const base::string16& text) {
19  if (text.length() != 10)
20    return false;
21
22  if (text[0] != '[' || text[9] != ']')
23    return false;
24  return (text[1] == 'R' || text[1] == '-') &&
25         (text[2] == 'W' || text[2] == '-') &&
26         (text[3] == 'C' || text[3] == '-') &&
27         (text[4] == 'E' || text[4] == '-') &&
28         (text[5] == 'A' || text[5] == '-') &&
29         (text[6] == 'F' || text[6] == '-') &&
30         (text[7] == 'M' || text[7] == '-') &&
31         (text[8] == 'S' || text[8] == '-');
32}
33
34}  // namespace
35
36namespace net {
37
38bool ParseFtpDirectoryListingNetware(
39    const std::vector<base::string16>& lines,
40    const base::Time& current_time,
41    std::vector<FtpDirectoryListingEntry>* entries) {
42  if (!lines.empty() && !StartsWith(lines[0], ASCIIToUTF16("total "), true))
43    return false;
44
45  for (size_t i = 1U; i < lines.size(); i++) {
46    if (lines[i].empty())
47      continue;
48
49    std::vector<base::string16> columns;
50    base::SplitString(CollapseWhitespace(lines[i], false), ' ', &columns);
51
52    if (columns.size() < 8)
53      return false;
54
55    FtpDirectoryListingEntry entry;
56
57    if (columns[0].length() != 1)
58      return false;
59    if (columns[0][0] == 'd') {
60      entry.type = FtpDirectoryListingEntry::DIRECTORY;
61    } else if (columns[0][0] == '-') {
62      entry.type = FtpDirectoryListingEntry::FILE;
63    } else {
64      return false;
65    }
66
67    // Note: on older Netware systems the permissions listing is in the same
68    // column as the entry type (just there is no space between them). We do not
69    // support the older format here for simplicity.
70    if (!LooksLikeNetwarePermissionsListing(columns[1]))
71      return false;
72
73    if (!base::StringToInt64(columns[3], &entry.size))
74      return false;
75    if (entry.size < 0)
76      return false;
77    if (entry.type != FtpDirectoryListingEntry::FILE)
78      entry.size = -1;
79
80    // Netware uses the same date listing format as Unix "ls -l".
81    if (!FtpUtil::LsDateListingToTime(columns[4], columns[5], columns[6],
82                                      current_time, &entry.last_modified)) {
83      return false;
84    }
85
86    entry.name = FtpUtil::GetStringPartAfterColumns(lines[i], 7);
87
88    entries->push_back(entry);
89  }
90
91  return true;
92}
93
94}  // namespace net
95