ftp_directory_listing_parser_netware.cc revision a1401311d1ab56c4ed0a474bd38c108f75cb0cd9 
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/strings/string_number_conversions.h"
10#include "base/strings/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() &&
43          !StartsWith(lines[0], base::ASCIIToUTF16("total "), true)) {
44    return false;
45  }
46
47  for (size_t i = 1U; i < lines.size(); i++) {
48    if (lines[i].empty())
49      continue;
50
51    std::vector<base::string16> columns;
52    base::SplitString(base::CollapseWhitespace(lines[i], false), ' ', &columns);
53
54    if (columns.size() < 8)
55      return false;
56
57    FtpDirectoryListingEntry entry;
58
59    if (columns[0].length() != 1)
60      return false;
61    if (columns[0][0] == 'd') {
62      entry.type = FtpDirectoryListingEntry::DIRECTORY;
63    } else if (columns[0][0] == '-') {
64      entry.type = FtpDirectoryListingEntry::FILE;
65    } else {
66      return false;
67    }
68
69    // Note: on older Netware systems the permissions listing is in the same
70    // column as the entry type (just there is no space between them). We do not
71    // support the older format here for simplicity.
72    if (!LooksLikeNetwarePermissionsListing(columns[1]))
73      return false;
74
75    if (!base::StringToInt64(columns[3], &entry.size))
76      return false;
77    if (entry.size < 0)
78      return false;
79    if (entry.type != FtpDirectoryListingEntry::FILE)
80      entry.size = -1;
81
82    // Netware uses the same date listing format as Unix "ls -l".
83    if (!FtpUtil::LsDateListingToTime(columns[4], columns[5], columns[6],
84                                      current_time, &entry.last_modified)) {
85      return false;
86    }
87
88    entry.name = FtpUtil::GetStringPartAfterColumns(lines[i], 7);
89
90    entries->push_back(entry);
91  }
92
93  return true;
94}
95
96}  // namespace net
97