DO NOT REPLY [Bug 28066] New: - Error parsing NT FTP Listing when Server lists in Unix Format

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http://issues.apache.org/bugzilla/show_bug.cgi?id=28066

Error parsing NT FTP Listing when Server lists in Unix Format

           Summary: Error parsing NT FTP Listing when Server lists in Unix
                    Format
           Product: Commons
           Version: 1.1.0
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Enhancement
          Priority: Other
         Component: Net
        AssignedTo: commons-dev@jakarta.apache.org
        ReportedBy: gastao.woelfert@accenture.com


When listing file in an NT FTP Server, which is set to list in UNIX format, 
there is a little problem with the UNIXFTPEntryParser regular expression.

For files created between 0:00 AM and 9:59 AM, the list returned from an UNIX 
FTP Server and from a NT FTP Server (set to list in the UNIX format) diverge.

The hour in the UNIX System is always shown with to digits (00, 01, 02, ... 10, 
11, 12, ... 23).
Nevertheless the hour in the NT System varies (0, 1, 2 ,... 10, 11, 12 , ... 
23).


Example:

UNIX:

-rw-rw-r--   1 mqm        mqm          17707 Mar 12 03:33 killmq.sh.log

NT:

-rw-rw-r--   1 mqm        mqm          17707 Mar 12  3:33 killmq.sh.log



As the UNIXFTPEntryParser regular expression is not prepared to this kind of 
listing, the program hangs, for some unknown reason.

I substituted the regular expression from

private static final String REGEX =
        "([bcdlf-])"
        + "(((r|-)(w|-)(x|-))((r|-)(w|-)(x|-))((r|-)(w|-)(x|-)))\\s+"
        + "(\\d+)\\s+"
        + "(\\S+)\\s+"
        + "(?:(\\S+)\\s+)?"
        + "(\\d+)\\s+"
        + MONTHS + "\\s+"
        + "((?:[0-9])|(?:[0-2][0-9])|(?:3[0-1]))\\s+"
        + "((\\d\\d\\d\\d)|((?:[01]\\d)|(?:2[0123])):([012345]\\d))\\s"
        + "(\\S+)(\\s*.*)";

to

private static final String REGEX =
        "([bcdlf-])"
        + "(((r|-)(w|-)(x|-))((r|-)(w|-)(x|-))((r|-)(w|-)(x|-)))\\s+"
        + "(\\d+)\\s+"
        + "(\\S+)\\s+"
        + "(?:(\\S+)\\s+)?"
        + "(\\d+)\\s+"
        + MONTHS + "\\s+"
        + "((?:[0-9])|(?:[0-2][0-9])|(?:3[0-1]))\\s+"
        + "((\\d\\d\\d\\d)|((?:[01]\\d??)|(?:2[0123])|(?:[3-9])):([012345]\\d))
\\s"
        + "(\\S+)(\\s*.*)";

and it worked fine.

Best Regards,

Gastão

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