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