net/ftp/ftp_directory_listing_parser_windows.cc

   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_windows.h"
   6
   7 #include <vector>
   8
   9 #include "base/strings/string_number_conversions.h"
  10 #include "base/strings/string_split.h"
  11 #include "base/strings/string_util.h"
  12 #include "base/strings/utf_string_conversions.h"
  13 #include "base/time/time.h"
  14 #include "net/ftp/ftp_directory_listing_parser.h"
  15 #include "net/ftp/ftp_util.h"
  16
  17 namespace net {
  18
  19 bool ParseFtpDirectoryListingWindows(
  20     const std::vector<base::string16>& lines,
  21     std::vector<FtpDirectoryListingEntry>* entries) {
  22   for (size_t i = 0; i < lines.size(); i++) {
  23     if (lines[i].empty())
  24       continue;
  25
  26     std::vector<base::string16> columns = base::SplitString(
  27         base::CollapseWhitespace(lines[i], false), base::ASCIIToUTF16(" "),
  28         base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
  29
  30     // Every line of the listing consists of the following:
  31     //
  32     //   1. date
  33     //   2. time
  34     //   3. size in bytes (or "<DIR>" for directories)
  35     //   4. filename (may be empty or contain spaces)
  36     //
  37     // For now, make sure we have 1-3, and handle 4 later.
  38     if (columns.size() < 3)
  39       return false;
  40
  41     FtpDirectoryListingEntry entry;
  42     if (base::EqualsASCII(columns[2], "<DIR>")) {
  43       entry.type = FtpDirectoryListingEntry::DIRECTORY;
  44       entry.size = -1;
  45     } else {
  46       entry.type = FtpDirectoryListingEntry::FILE;
  47       if (!base::StringToInt64(columns[2], &entry.size))
  48         return false;
  49       if (entry.size < 0)
  50         return false;
  51     }
  52
  53     if (!FtpUtil::WindowsDateListingToTime(columns[0],
  54                                            columns[1],
  55                                            &entry.last_modified)) {
  56       return false;
  57     }
  58
  59     entry.name = FtpUtil::GetStringPartAfterColumns(lines[i], 3);
  60     if (entry.name.empty()) {
  61       // Some FTP servers send listing entries with empty names.
  62       // It's not obvious how to display such an entry, so ignore them.
  63       // We don't want to make the parsing fail at this point though.
  64       // Other entries can still be useful.
  65       continue;
  66     }
  67
  68     entries->push_back(entry);
  69   }
  70
  71   return true;
  72 }
  73
  74 }  // namespace net