net/ftp/ftp_directory_listing_parser_os2.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_os2.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 ParseFtpDirectoryListingOS2(
  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. size in bytes (0 for directories)
  31     //   2. type (A for files, DIR for directories)
  32     //   3. date
  33     //   4. time
  34     //   5. filename (may be empty or contain spaces)
  35     //
  36     // For now, make sure we have 1-4, and handle 5 later.
  37     if (columns.size() < 4)
  38       return false;
  39
  40     FtpDirectoryListingEntry entry;
  41     if (!base::StringToInt64(columns[0], &entry.size))
  42       return false;
  43     if (EqualsASCII(columns[1], "DIR")) {
  44       if (entry.size != 0)
  45         return false;
  46       entry.type = FtpDirectoryListingEntry::DIRECTORY;
  47       entry.size = -1;
  48     } else if (EqualsASCII(columns[1], "A")) {
  49       entry.type = FtpDirectoryListingEntry::FILE;
  50       if (entry.size < 0)
  51         return false;
  52     } else {
  53       return false;
  54     }
  55
  56     if (!FtpUtil::WindowsDateListingToTime(columns[2],
  57                                            columns[3],
  58                                            &entry.last_modified)) {
  59       return false;
  60     }
  61
  62     entry.name = FtpUtil::GetStringPartAfterColumns(lines[i], 4);
  63     if (entry.name.empty()) {
  64       // Some FTP servers send listing entries with empty names.
  65       // It's not obvious how to display such an entry, so ignore them.
  66       // We don't want to make the parsing fail at this point though.
  67       // Other entries can still be useful.
  68       continue;
  69     }
  70
  71     entries->push_back(entry);
  72   }
  73
  74   return true;
  75 }
  76
  77 }  // namespace net