pre-set= Dir2HTML
@(#) $Id: Dir2HTML.txt,v 3.24 2017/01/02 09:14:01 ralph Exp $ vim:ts=8:sw=4:sts=4 -- coding: utf-8 --
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(c) 2000-2018 by ROSE SWE, Ralph Roth, http://rose.rult.at
Dir2HTML creates HTML files from a directory list using the command line (and the Dir2HTML.INI file as configuration), optionally including HTML code of your own design in the generated file. With Dir2HTML, your index.html files can be unique and arbitrarily complex.
Dir2HTML strength is its support of MD5 hashes/checksums and the 4DOS description format. Program version are available for Dos32, Windows and Linux!
To get the most out of Dir2HTML, you need at least a basic understanding of HTML. Without it, the generated files will be functional but you will not get the most out of it. An hour spent learning HTML and five minutes spent reading custom HTML files will be well rewarded. :-)
Dir2HTML is freeware. It contains no ads (but can be registered for special commercial use = own key file with YOUR name), and does not connect to the internet or violate your privacy in any way. The included index.html contains ads, but that is only an example of the "include=" feature, after editing the Dir2HTML.INI file those ads are also gone! It does only one thing: build html files.
Dir2HTML is available without an installation program (Portable Program), just unzip and run Dir2HTML.exe. To uninstall simply delete the files. I recommend to copy the *.exe, *.key and *.ini files to somewhere were your PATH= variable points.
Next step is to edit the Dir2HTML.INI file (see also below) then launch Dir2html.exe in the directory you want to create your "index.html" file. Then upload this index.html, the supplied .GIF files and your files to your web site.
The "Updated/New" flag is triggered by the DOS archive bit of a file. You can
set it or reset it using: attrib +a filename to set or attrib -a filename
to unset it. Linux (and Windows) user can use the Newer=days support in the
INI file.
From each file is the MD5 hash calculated, so you and your users can check if the download is broken or not.
To add or edit a short description of a filename you can use "describe.exe filename" which will you prompt for a short description. The file format used for these description is the 4DOS "descript.ion" format, supported by various tools like Total Commander, DN, DoubleCommander, NDM, XNView or 4DOS.
Most parts of this file are self explaining. You can store it somewhere in your PATH or just for every directory where you create an index.html a separate copy, it depends on you!
Here’s a short description of the keywords. Please notice that indexes are hexadecimal numbered!
Exclude??= Files that should not be included, e.g. the INI file etc.
(MAX = 50)
Output= Output file, default index.html
Header?= Additional lines that will be included into the HTML header,
just before the <title> tags!
(MAX = 16 -> 0..Fh) include= supported
TextBeforeText?= Text that comes before dir2html automatically created text
(MAX 16, include= supported)
TextAtEnd?= Bottom text
(MAX 16, include= supported)
; Remark
...=include=filename instead of writing only single HTML lines you can
also use include files, that can contain plain ASCII or
HTML statements. Just take a look how I include my ads.
Newer=Integer(days)
;;
Newer=60
;; A file gets the "new" status, if the ARCHIVE attribute (DOS/Windows) is set or (FileDate+Newer>Currentdate) -> 2 Month (60 days)
;;
Dir2HTML 2.50 and higher supports command line options. Run Dir2HTML with the option -? or -h to see all supported command line options.
Customers familiar with the American or Linux/UNIX parameter syntax (minus sign) instead of the slash (' / ') can also use the minus sign (' - ') to start an option under DOS and Windows. Under Linux you must use the minus sign!
Example: -nojava is equivalent to /NoJAvA
| There must be at least one blank between the individual arguments! The arguments are not case sensitive. |
Instead of always calling Dir2HTML with arguments, Dir2HTML can be controlled with a so called environment variable. For example, enter the following at the DOS prompt:
c:> SET Dir2HTML=-nototal /NoJava
For Linux:
#export dir2html=-nototal
If you start Dir2HTML now, Dir2HTML reads all required arguments from the variable.
Sometimes it might be desired to reset already set options (i.e. set by SET Dir2HTML=…) This can simply be done by a minus sign following the option on the command line. With this action the option is being switched off.
For example, you have entered the following:
SET Dir2HTML=-dir
Then start Dir2HTML with the following argument:
Dir2HTML -dir-
In this case the command line option overrides the option set by the environment variable! Command line always override environment options.
See CVS/RCS log in the source code, especially in dir2html.pas and in the file "ChangeLog".
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Dir2HTML supports 4DOS DESCRIPT.ION files and uses this information for additional information in the "index.html" file.
The DESCRIPT.ION file format was designed for short (DOS) file names (8.3). To use long file names in Dir2HTML, filenames and the description is separated in the DESCRIPT.ION file with " " around the file name. The original DESCRIPT.ION uses here a space (char 32 - that interferes with LFN containing spaces). Dir2html and Describe will use the "filename" format for writing into the descript.ion file, but can handle all formats:
filename space desc - 4dos DOS filename tab or alt-255 desc - various utilities "filename" space desc - 4dos NT, ROSE SWE tools
Describe WILL convert the whole DESCRIPT.ION file to "filename" format!
To add or edit the DESCRIPT.ION file you can use supplied describe.exe. Keys: Arrows, Backspace/Del, Ins, Crtl-Y, ESC.
describe -md5 . will add md5 hashes to the comments describe -batch . -md5 - "" -, batch mode, no manual editing
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WHAT IS A HASH ALGORITHM? THE SHA-1 AND MD5 ALGORITHMS
Theoretically, MD5 and SHA1 are algorithms for computing a 'condensed representation' of a message or a data file. The 'condensed representation' is of fixed length and is known as a 'message digest' or 'fingerprint'.
What makes this exercise useful, is that it is conjectured that it is computationally infeasible to produce two messages having the same message digest. This uniqueness enables the message digest to act as a 'fingerprint' of the message… opening up the possibility of using this technology for issue like data integrity and comparison checking.
For instance when you download or receive a file, you can use MD5 or SHA-1 to guarantee that you have the correct, unaltered file by comparing its hash with the original. You are essentially verifying the file’s integrity.
It needn’t be a file of course - any message or similar construct for which you need to ensure integrity can be verified in this way. All sorts of possibilities emerge…
SHA-1: The Secure Hash Algorithm (SHA) was developed by NIST and is specified in the Secure Hash Standard (SHS, FIPS 180). SHA-1 is a revision to this version and was published in 1994. It is also described in the ANSI X9.30 (part 2) standard. SHA-1 produces a 160-bit (20 byte) message digest. Although slower than MD5, this larger digest size makes it stronger against brute force attacks.
MD5: MD5 was developed by Professor Ronald L. Rivest in 1994. Its 128 bit (16 byte) message digest makes it a faster implementation than SHA-1.
In both cases, the fingerprint (message digest) is also non- reversible…. your data cannot be retrieved from the message digest, yet as stated earlier, the digest uniquely identifies the data.
[MD5] Rivest, R., "The MD5 Message-Digest Algorithm",
RFC 1321, April 1992.
http://www.faqs.org/rfcs/rfc1321.html
[SHA] NIST, FIPS PUB 180-1: Secure Hash Standard, April 1995.
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