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      1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.  Use of this
      2 // source code is governed by a BSD-style license that can be found in the
      3 // LICENSE file.
      4 
      5 #ifndef NET_FTP_FTP_DIRECTORY_LISTING_PARSER_VMS_H_
      6 #define NET_FTP_FTP_DIRECTORY_LISTING_PARSER_VMS_H_
      7 
      8 #include <queue>
      9 
     10 #include "net/ftp/ftp_directory_listing_parser.h"
     11 
     12 namespace net {
     13 
     14 // Parser for VMS-style directory listing (including variants).
     15 class FtpDirectoryListingParserVms : public FtpDirectoryListingParser {
     16  public:
     17   FtpDirectoryListingParserVms();
     18 
     19   // FtpDirectoryListingParser methods:
     20   virtual FtpServerType GetServerType() const { return SERVER_VMS; }
     21   virtual bool ConsumeLine(const string16& line);
     22   virtual bool OnEndOfInput();
     23   virtual bool EntryAvailable() const;
     24   virtual FtpDirectoryListingEntry PopEntry();
     25 
     26  private:
     27   // Consumes listing line which is expected to be a directory listing entry
     28   // (and not a comment etc). Returns true on success.
     29   bool ConsumeEntryLine(const string16& line);
     30 
     31   enum State {
     32     STATE_INITIAL,
     33 
     34     // Indicates that we have received the header, like this:
     35     // Directory SYS$SYSDEVICE:[ANONYMOUS]
     36     STATE_RECEIVED_HEADER,
     37 
     38     // Indicates that we have received the first listing entry, like this:
     39     // MADGOAT.DIR;1              2   9-MAY-2001 22:23:44.85
     40     STATE_ENTRIES,
     41 
     42     // Indicates that we have received the last listing entry.
     43     STATE_RECEIVED_LAST_ENTRY,
     44 
     45     // Indicates that we have successfully received all parts of the listing.
     46     STATE_END,
     47   } state_;
     48 
     49   // VMS can use two physical lines if the filename is long. The first line will
     50   // contain the filename, and the second line everything else. Store the
     51   // filename until we receive the next line.
     52   string16 last_filename_;
     53   bool last_is_directory_;
     54 
     55   std::queue<FtpDirectoryListingEntry> entries_;
     56 
     57   DISALLOW_COPY_AND_ASSIGN(FtpDirectoryListingParserVms);
     58 };
     59 
     60 }  // namespace net
     61 
     62 #endif  // NET_FTP_FTP_DIRECTORY_LISTING_PARSER_VMS_H_
     63