2000-01-02  Hans de Graaff  <Hans de Graaff <graaff@xs4all.nl>>

	* checkbot.pl (handle_doc): Use canonical URI from LinkExtor,
	which simplifies the rest of the logic and gets things working
	with the new version of LinkExtor.

2000-01-01  Stephane Bortzmeyer <bortzmeyer@pasteur.fr>

	* checkbot.pl (init_globals): Create Checkbot workdir in $TMPDIR
	if defined, /tmp otherwise. Patch by Stephane Bortzmeyer.

1999-12-31  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (handle_doc): Change frag to fragment.

1999-11-07  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (handle_doc): Add warning for URLs for which LWP
	can't determine a hostname, and don't check them further.

1999-10-24  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (print_help): Added line on --interval option.

1999-10-23  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (init_globals): Fixed proper determination of server
	prefix if a filename is supplied, thanks to Michael Baumer.

1999-10-02  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (init_modules): Added use URI.

1999-08-21  Hans de Graaff  <graaff@xs4all.nl>

	* Makefile.PL (chk_version): Added check for URI.

1999-07-17  Hans de Graaff  <graaff@xs4all.nl>

	* README: Added blurb on the announcements mailing list.

1999-07-06  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (add_checked): Deal with the fact that a mailto: URL 
	has no host component. Thanks to John Croft for the report.

1999-06-27  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (handle_url): Really fix relative redirection URLs
	using the URI class. Thanks for Thomas Zander for the report and
	reproducible failing URL.

1999-05-03  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (printServerWarnings): Also change clustering of URLs.

1999-05-02  Hans de Graaff <graaff@xs4all.nl>

	* checkbot.pl (signature): Add quotes around the URL in the
	signature.
	(printServerProblems): Fixed clustering of URLs so that faulty
	links are listed under the URL that contains them, instead of the
	other way around. This ordering problem was introduced in 1.53.

1999-04-10  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (handle_url): Make sure a redirected URL is fully
	qualified (based on the original URL) to avoid dying on it
	later. Thanks to David Hoekman for the initial analysis.

1999-04-05  Hans de Graaff <graaff@xs4all.nl>

	* checkbot.pl (printAllServers): Taken out of create_page for
	clarity.
	(printServerWarnings): Keep warning headers from being printed for 
	each warning.

1999-03-15  Hans de Graaff  <graaff@xs4all.nl>

	* README: Explain which Perl modules are needed.

1999-02-20  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (printServerWarnings): Fix printing of warnings so
	that headers are only printed once.
	(print_server): get correct IP address for web servers with
	non-standard port numbers.

1999-02-08  Hans de Graaff  <graaff@xs4all.nl>

	* Makefile.PL (chk_version): Added location of Mail::Send.

1999-01-18  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (count_problems): Change counting of problems to
	deal with new structure.

1999-01-17  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (printServerProblems): Changed to accomodate new
 	inventory of problem response. This new method allow multiple bad
 	links to one URL be all reported all at once. Also use
 	standardized response descriptions based on a patch by Benjamin
 	Franz <snowhare@nihongo.org>.

1999-01-10  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (byReferringPage): Added to allow sorting of
	problems by referer.
	(byProblem): Removed code to compare by exact message and
	referer.
	Removed the pre-amble to generate correct perl path because it is
	a bit too cumbersome during development.

1998-12-31  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (handle_url): Do a HEAD request when the guessed
 	content-type matches application/octet-stream to get the real
 	content-type from the server.

1998-12-27  Hans de Graaff <graaff@xs4all.nl>

	* checkbot.pl (handle_doc): Added warning for HTTP URLs without a
	fully-qualified hostname.

	* checkbot.pl (printServerWarnings): Added a mechanism to also
 	display checkbot warnings, unrelated to the HTTP responses, on the
 	results pages.

1998-10-24  Hans de Graaff <graaff@xs4all.nl>

	* checkbot.pl (setup): Explicitly set record separator $/
	This appears needed for perl 5.005, and fixes a problem
	where no URLs would appear to match except the first few.

1998-10-10  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl: Made POD conform to new scripts format better.

1998-06-21  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (init_modules): HTML::Parse is no longer needed,
	removed.

Sat Sep  6 16:00:12 1997  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot 1.51 released

Sat Aug 30 18:05:39 1997  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl (init_globals): assume file: scheme when no scheme
	is present.

	* checkbot.pl: Small portability stuff for perl 5.004 and LWP 5.11.

Sun Aug 17 08:56:38 1997  Hans de Graaff  <graaff@xs4all.nl>

	* README: Changed email addresses to point to new ISP.

Mon Apr 28 09:08:29 1997  Hans de Graaff  <graaff@xs4all.nl>

	* checkbot.pl: Parsing VERSION is somewhat tricky. Fixed.

Sun Apr 27 21:02:58 1997  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot.pl (check_external): Close EXTERNAL after use.

Sun Apr 20 10:24:09 1997  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot.pl: Fixed a number of small bugs reported by Jost Krieger.
	Regular expressions can now be used with the options.
	Added --interval option to denote maximum interval between updates.

Sat Apr  5 17:03:46 1997  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot.pl (init_globals): Added checks for URLs without a scheme.

Fri Mar 14 11:17:21 1997  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot.pl (print_help): Fix typo.

Tue Jan 14 16:51:36 1997  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot.pl (check_internal): Check whether there are really
	entries in the new queue when changing queues.

Sat Jan  4 14:26:04 1997  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot.pl (print_help): --seconds should be --sleep in help.

Mon Dec 30 12:03:14 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot.pl (handle_url): If a URL is exclude'd, only use HEAD
	on it, not GET.
	Starting URLs can now be entered on the command line in addition
	to the --url option. --url takes precedence. --match is
	initialized with first URL if not given as separate option.

Mon Dec 23 20:21:32 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot.pl (print_server_problems): Each error message was
	evaluated as a regexp, potentially crashing checkbot on a bad
	regexp (e.g. including the string '++').

Mon Dec 23 15:15:05 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot.pl (ip_address): Deal with IP-address not found.

Sun Dec  8 12:55:33 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot.pl (send_mail): --note didn't work; Checkbot would
	crash when no external links were found.

Wed Dec  4 12:43:14 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot.pl (add_checked): All checked URLs are indexed using
	  IP-address to avoid checking pages multiple times for multiple
	  CNAME's.

Mon Nov  4 14:19:30 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot.pl (send_mail): Braino in URL fixed.

Sun Oct 27 20:16:38 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot.pl (init_globals): Don't let --match default to the
	--url until after we possible change the URL (this happens for
	file:/ URLs, currently)

Wed Oct 23 14:22:15 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot.pl (check_point): Oops, checking would occur every minute

Mon Oct 21 13:41:48 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot.pl (print_help): Added version number to help info.

Wed Oct 16 21:05:58 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot.pl: Added --proxy option for checking external links
	through a proxy server

Sat Sep 28 09:26:48 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot.pl (init_globals): Changed /var/tmp to /tmp.
	(check_point): Slower exponential rate, upper limit of 3 hours

	* Makefile.PL: Added check for Mail::Send

	* README: Added

Thu Sep 26 17:01:36 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot.pl: Switched from short options to long options.
	I was already running out of meaningful options, so before adding
	additional stuff I wanted to move to Long options first. You
	should be able to abbreviate most options to the previous values. 
	Notable exception is -m, which has become --match.

Wed Sep 25 10:58:06 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot.pl: 
	Renamed from checkbot
	Added preamble to set proper path for perl (code from Gisle Aas)

	* Makefile.PL: First version, installs checkbot and checkbot.1

	* checkbot: Changed $revision to $VERSION for MakeMaker.

Thu Sep 12 15:09:07 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* index.html: updated required modules and location.

	* checkbot: require LWP-5.02, because it fixes a few nasty bugs.

Thu Sep  5 16:00:42 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* index.html: 
	Removed old and out-of-date documentation. Replaced by link to
	automatically generated html version of POD documentation
	within Checkbot.

	* checkbot:
	Fixed documentation bugs.
	Really fix the case insensitive comparison.

Sun Sep  1 20:31:46 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot (print_server_problems): 
	Make comparison for error message case insensitive.

Fri Aug 30 20:19:56 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: Fixed several typo's.

Wed Aug  7 10:06:29 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot (handle_doc): 
	The new LinkExtractor is nice, but I shouldn't treat its output as
	a hash when it is an array, and thus skipping every other link.

Mon Aug  5 08:46:24 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot (print_server): 
	Fixed silly bug in calculating the percentage of problems on each
	server.

Fri Aug  2 21:38:39 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: Added several patches by Bruce Speyer:
	Added -N note option to go along with -M, -z to suppress reporting
	errors on matching links.
	Added enough logic to catch gopher URLS if no gopher server found.
	Need further logic to parse gopher returned menu for bad file or
	directory.

	* checkbot: Made a good start with POD documentation inside the
	checkbot file. Try 'perldoc checkbot'.

	* TODO: Added number of suggestions by Luuk de Boer.

	* checkbot (send_mail): Include summary of links checked in message.

Fri Aug  2 13:01:02 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot: 
	Added check for correct LWP version. We now need 5.01, due to bugs
	in the handling of the BASE attribute in previous versions.

Sat Jul 27 21:13:26 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: 
	Added several patches by Bruce Speyer:
	Optimized some static regular expressions.
	Fixed not setting the timeout, making the -t option useless.

Mon Jul 22 22:28:34 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot (create_page): 
	Fixed number of columns in summary output.

Sat Jul 20 11:49:23 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot (handle_doc): Changed to use the new HTML::LinkExtor,
	which will be present in LWP5.01. Should be more efficient, and
	less prone to memory leaks.

Sat Jul 13 12:41:23 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot (create_page): Forgot to add the ratio on the page.
	(check_external): Fix problems with different `wc` output.

Sat Jun 22 11:30:12 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: Use correct base URL as returned with the document.
	Only check document when we used 'GET' to receive it.
	Remove magic guessing with ending slash of starting url.
	Deal with redirections by inserting redirected URLs into queue
	again.

Thu Jun 20 15:58:20 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot: Major cleanup of initialization code. Also added todo
	counts to progression page, and proper todo handling for external
	links.

Sun Jun 16 21:16:28 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: Added -M option: send mail when Checkbot is done.
	Fixed division by zero bug when external links == 0

Tue Jun  4 12:46:39 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot: Better way to ignore fragments.

Sat Jun  1 15:14:52 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: Don't print decimals with the precentages.
	Major update of counting, and printing counts. Cleaned up
	variables, corrected counting, made display more consistent and
	clear.

Wed May 29 21:18:26 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: Small fixes to support lwp-win32 as well, thanks to
	Martin Cleaver.

Mon May 27 09:21:30 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: oops, small error in regexp caused script to append a
	slash to almost all start-url's. Fixed.
	
	* checkbot (handle_doc): External links without full URL's were
	not always handled properly.

Sun May 26 10:04:39 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: If the starting URL doesn't end in a slash, and
	doesn't have an extension, assume we need to add a slash.

	* index.html: Add version number to web page, and make sure it gets
	updated automatically.

Wed May 22 09:58:36 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot: Changed verbose output of links found on pages.

Tue May 14 16:43:38 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* TODO: updated with respect to recent changes.

Mon May 13 15:06:05 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot: Added LWP version number to agent field, changed page
	update policy, and updated script to LWP5b13.

Sat May  4 21:38:56 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: Changed checked array to an associative array. Will
	consume more memory, but drastically cut back on lookup time.
	
	Rewrote handle_url logic to be more clear. Also fixed bug where
	servers would be added to the list unjustly.

	Sleep was only done on problem links, not after each request.

	Also added checks for already checked links while scanning through
	the document, and only add those links not checked to the queue.

	Add percentage problem links for each individual server.

Mon Apr 29 08:43:12 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot: Deal with unknown or non-determinable server types.
	
	Only add links to the external queue when we know we can check
	their protocol.

	Additional changes to layout and content of pages.

Sun Apr 28 21:16:51 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: Rewrote report page.

Wed Apr 24 22:39:43 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: Added a number of patches by Tim MacKenzie
	Added -s option to set the seconds of sleep between requests.
	Remove work files when *not* debugging.
	Only compile -m and -x regular expressions once.
	Also check external ftp and nntp links (using HEAD only).
	Get rid of huge memory leak! (Also noted by Fabrice Gaillard)

Fri Mar 29 10:58:24 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot: 
	Got rid of warnings about some variables.
	Fixed problem with incorrect automatic -m argument when scanning
	local files.

Sun Mar 24 18:01:05 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot:
	Added code to support regular expressions with the -m and -x
	arguments. Thanks to Thomas Thiel for the patch and suggestions.
	
	No strict checking on schemes, fixes problem with unknown schemes
	stopping checkbot. Thanks to Pierre-Yves Foucou.

	* checkbot: 
	Should create direcory for temporary files, and remove it
	afterwards. Noted by Steve Fisk.

Sat Mar 16 13:40:48 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: 
	Made a number of changes from or based on patches by Thomas Thiel:

	Added missing t option in Getopts string.

	Made -m argument optional. If not given, the -u argument is also
	used as the start argument.

	Temporary files are now created in a separate directory. Its name
	contains the PID of Checkbot, to allow several concurrent
	Checkbots being run. Also remove temporary files, unless
	debugging.

	Implement file:// scheme to allow direct checking (without HTTP
        server)

Fri Mar 15 11:06:13 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot: 
	Fixed warnings (and in the process, a small bug as well).
	Added URL and proper name to help.

Sat Mar  2 11:51:45 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* checkbot: 
	Added 'require 5.002' (because libwww-perl5b8 requires it).
	Added 'use strict', and fixed problems resulting from this. This
	can be seen as a first step towards fixing the huge
	memory-consumption.
	Updated help.

Tue Feb 27 09:57:57 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot:
	Fixed bug which occured when -x option was not present.
	Updated script to use libwww-perl5b8 function names. This is not
	backward compatible with versions prior to beta 8.

Mon Feb 26 12:46:08 1996  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot:
	Fixed bug with Referer header for external URL's.
	Also make server pages auto-refresh.

Sat Feb 24 11:48:15 1996  Hans de Graaff  <Hans.deGraaff@twi72.twi.tudelft.nl>

	* TODO: New file.

	* checkbot: Added single -x option as an additional exclude pattern.
	This overrules the -m match attribute.

Mon Dec 11 14:13:30 1995  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* index.html
	Added libwww-perl5 address, and added a usage section.

	* checkbot.pl
	Removed this old perl4 version.

Fri Dec  8 13:41:43 1995  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot: 
	Major rewrite of most of the internal routines. The routines are
	much more structured now, and broken up into smaller routines.
	I also changed the way checked links are remembered. It should be
	much less efficient, CPU-wise, but more efficient memory-wise.

Fri Nov 24 16:45:18 1995  Hans de Graaff  <J.J.deGraaff@twi.tudelft.nl>

	* checkbot:
	Fixed small problems, mostly with output.
	Fixed checking of external links
	Changed sorting order

	* checkbot: 
	Perl5 version now works for the most part. Although Checkbot isn't
	fully finished I at least feel confident to release it.

Fri Aug 25 11:23:36 1995  Hans de Graaff  <graaff@is.twi.tudelft.nl>

	* Made a start with the perl5 version of checkbot. The modules in
	perl5 (e.g. LWP) look very promising, and should make checkbot
	quite a bit better.