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linklint-2.3.5
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#!/usr/bin/perl -- # -*- perl -*-
#==========================================================================
# linklint - a fast link checker and web site maintenance tool.
# Copyright (C) 1997 -- 2001 James B. Bowlin. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to
#
# Free Software Foundation, Inc.
# 59 Temple Place - Suite 330
# Boston, MA 02111-1307, USA
#
# Notice, that ``free software'' addresses the fact that this program
# is __distributed__ under the term of the GNU General Public License
# and because of this, it can be redistributed and modified under the
# conditions of this license, but the software remains __copyrghted__
# by the author. Don't intermix this with the general meaning of
# Public Domain software or such a derivated distribution label.
#
# Linklint is a total rewrite of Rick Jansen's 4/15/96 version of webxref.
#
# Thanks to Celeste Stokely, Scott Perry, Patrick Meyer, Brian Kaminer
# David Hull, Stephan Petersen, Todd O'Boyle, Vittal Aithal (and
# many others!) for many excellent suggestions.
#
# Bugs, comments, suggestions welcome: bugs@linklint.org
# Updates available at http://www.linklint.org
#
# RECENT CHANGES (see CHANGES.txt for full list):
#
# Version 2.3.5 August 13, 2001
# -----------------------------
# o added -no_anchors tag (for larger sites)
# o fixed bug that prevented site checks of
# some non port 80 sites. (Thanks Rick Perry).
#
# Version 2.3.4 August 8, 2001
# ----------------------------
# o keep query string for http site checks
# o added no_query_string option to disable above
# o added "php" and "jar" file types
# o look for .jar files from applet tags
# o s!//+!/!g inside of UniqueUrl()
# o -http_header and -language options
#
# Version 2.3.3 July 6, 2001
# ---------------------------
# o added 2nd argument to mkdir() on line 921
# o for creating url doc directory
#
# Version 2.3.2 June 22, 2001
# ---------------------------
# o -no_warn_index for missing index file warnings
# o -concise_url flag to suppress output of valid remote links
# on STDOUT
#
# Version 2.3.1 June 21, 2001
# ---------------------------
# o unified -proxy support (no conflict w/ virtual hosts now)
# and moved it to Request() so we should support proxies
# for site checking
#
# Version 2.3.0 June 3, 2001
# --------------------------
# o moved home site and email address
# o added -help_all -version -license "@"
# o updated to GPL
#
#========================================================================
$version = "2.3.5";
$date = "August 13, 2001";
$prog = "linklint";
$Usage1 = <<USAGE1;
This is $prog Version $version ($date)
Copyright (c) 1997-2001 James B. Bowlin
USAGE1
$Usage3 = qq~
Use $prog with no arguments for standard usage.
Use "$prog -help_all" for a list of ALL options.
~;
$Version_Usage = <<VERSION_USAGE;
$Usage1
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
VERSION_USAGE
$LICENSE = <<LICENSE_TEXT;
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
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Foundation's software and to any other program whose authors commit to
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When we speak of free software, we are referring to freedom, not
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NO WARRANTY
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END OF TERMS AND CONDITIONS
LICENSE_TEXT
$Usage = <<USAGE;
Usage: linklint \@file \@\@file -flag [option] linkset linkset ...
-root dir Set server root to "dir" (default ".").
-host name[:port] Use "name" as domain name of site.
-http Check site remotely via http (requires -host).
-net Check status of remote http links found in site.
-help Show help. (Use "-help_all for complete usage).
-version Show version info.
Multi File Output:
-doc dir Write many output files in "dir" directory.
Single File Output:
-error print errors -out file direct output to "file"
-warn print warnings -xref cross reference
-list print files found -forward sort by referring file
linkset:
home page only: / (default) root dir only: /#
entire site: /@ and all subdirs: /#/#
specific links: /link1 /link2 ... "sub" dir and below: /sub/@
USAGE
$Help2 = <<'HELP2';
Site Checking:
-case Check filename case (Windows/Dos only, local only).
-orphan List all unused (orphan) files (local only).
-index file Use "file" as default index file (local only).
-skip linkset Don't check html files that match linkset.
-ignore linkset Ignore all files matching linkset.
-limit n Only check up to n html files (default 500).
-map /a[=/b] Subsitute leading /a with /b (for serverside image maps).
-local linkset Always get files that match linkset locally.
-no_warn_index Don't create "index file not found" warnings
-http_header xxx Specifically add header "xxx" to all HTTP requests
-language zz Add "Accept-Language: zz" header to all HTTP requests
Network:
-timeout t Timeout remote links after t seconds (default 15).
-delay d Delay d seconds between requests to same host (default 0).
-redirect Follow <meta> redirects in remote urls.
-proxy host[:port] Send remote http requests through a proxy server.
-password realm user:password Authorize access to "realm".
-concise_url Suppress STDOUT output of valid remote links.
Remote Status Cache:
-netmod Put urls in cache and report modified status.
-netset ... and update last modified status in the cache.
-retry Only check urls that had host failures.
-flush Remove urls from cache that aren't currently being checked.
-checksum Exaustive check of modified status.
-cache dir Read/save "linklint.url" cache file in this directory.
Output:
-quiet Don't print progress on screen.
-silent Don't print summary on screen.
-docbase exp Overrides defaults for linking html output back to site.
-textonly Only write .txt files in -doc directory.
-htmlonly Erase .txt files after .html output files are written.
-output_frames Have index.html open a new window when viewing data files
-url_doc_prefix p Prefix Remote URL output files with "p" instead of "url".
-output_index xxx Output index files will be "xxx.txt" and "xxx.html".
-dont_output xxx Don't create output files that contain xxx.
Debug Flags:
-db1 Debug input, linkset expressions.
-db2 Show every file that gets checked (not just html).
-db3 Debug parser. Print tags and links found.
-db4 Debug socket connections
-db5 not used
-db6 Detail last-modified status for remote urls.
-db7 Print brief debug information checking remote urls.
-db8 Print headers while checking remote urls.
-db9 Generate random http errors.
@cmndfile Read command line options from "cmndfile".
@@file Check status of remote http links in "file".
HELP2
$Examples = << 'EXAMPLES';
Examples:
1) linklint -doc linkdoc -root dir
Checks home page. Output files go in "linkdoc" directory.
2) linklint -doc linkdoc -root dir /@
Checks all files under "dir". Output files go in "linkdoc" directory.
3) linklint -doc linkdoc -root dir /@ -net
Checks site as (2). Then checks all http links found in site.
4) linklint -doc linkdoc -root dir /#
Like (2) but only checks files in the root directory.
5) linklint -doc linkdoc -host host /@ -http
Same as (2) but checks site using http instead of file system.
6) linklint -doc linkdoc @@linkdoc/remote.txt
Check remote link status without rechecking entire site.
EXAMPLES
$ErrUsage = <<ERR_USAGE;
Use $prog with no arguments for simple usage.
Use "$prog -help_all" for a list of ALL options.
ERR_USAGE
#------------------ Start up values ----------------------------------
$URL_PREFIX = "url";
$OUTPUT_INDEX = "index";
#----- Files to try in case of a directory reference like "/" --------
@DefIndex = (
'home.html', 'index.html', 'index.shtml', 'index.htm', 'index.cgi',
'wwwhome.html', 'welcome.html',
);
$DefCaseSens = '';
#----- File extensions and floormats ---------------
$HtmlExts = 'html|shtml|htm';
$AnyCgi = '\?|^/cgi-bin/|(\.(cgi|pl)(/|$))';
$StandardMaps = '(/imagemap|/cgi-(b|w)in/(imagemap.exe|htimage))';
@fileformat = (
'php::\.php(\?|$)',
"cgi::$AnyCgi",
'default index::\(default\)',
"html::\.($HtmlExts)\$",
'java archive::\.jar$',
'map::\.map$',
'image::\.(gif|jpg|jpeg|tif|tiff|pic|pict|hdf|ras|xbm)$',
'text::\.txt$',
'audio::\.(au|snd|wav|aif|aiff|midi|mid)$',
'video::\.(mpg|mpeg|avi|qt|mov)$',
'shockwave::\.dcr$',
'applet::\.class$',
'other::unknown',
);
@filesplit = (
'found %3d file%s::.',
'found %3d default index%es::\/$',
);
@lostsplit = (
'ERROR %3d missing file%s::.',
'ERROR %3d missing director%y::\/$',
);
foreach (@fileformat) {
($name,$data) = split(/::/);
push(@filesplit,"found %3d $name file%s::$data");
push(@lostsplit,"ERROR %3d missing $name file%s::$data");
}
@schema = ("http", "https", 'ftp', 'javascript', 'mailto', 'gopher',
'file','news', 'view-source', 'about', 'unknown');
@schemesplit = ( "found %3d other link%s::.");
foreach (@schema) {
push(@schemesplit, "found %3d $_ link%s::^$_:");
}
#--------------- Output Floormats ----------------------------------
#---- flags used in the printout lists below ---------------
$LIST = 001; $NOXR = 010; $URLDOC = 0100;
$WARN = 002; $XREF = 020; # $URLDOC = 0200;
$ERR = 004; $FWD = 040;
$PrnFlag = 0;
$SumFlag = $LIST | $ERR | $WARN | $NOXR;
$DocFlag = $LIST | $ERR | $WARN | $NOXR | $XREF | $FWD | $URLDOC;
@SumPrint = (0, 0, 1, $SumFlag);
@SiteForm = (
# file; %Data; $mask; program; @parameters
"dir; DirList; 001; 1; found %3d director%y with files; 0",
"file; FileList; 011; 2; filesplit; 0",
"fileX; FileList; 021; 2; filesplit; 2",
"fileF; Forward; 041; 1; found %3d file%s with forward links; 1; contains %d link%s:",
"remote; ExtLink; 011; 2; schemesplit; 0",
"remoteX; ExtLink; 021; 2; schemesplit; 2",
"anchor; Anchor; 011; 1; found %3d named anchor%s; 0",
"anchorX; Anchor; 021; 1; found %3d named anchor%s; 2",
"imgmap; ImgMap; 011; 1; found %3d named image map%s; 0",
"imgmapX; ImgMap; 021; 1; found %3d named image map%s; 2",
"ignore; Ignored; 011; 1; ----- %3d ignored file%s; 0",
"ignoreX; Ignored; 021; 1; ----- %3d ignored file%s; 2",
"action; Action; 011; 1; ----- %3d action%s skipped; 0",
"actionX; Action; 021; 1; ----- %3d action%s skipped; 2",
"skipped; Skipped; 012; 1; ----- %3d file%s skipped; 0",
"skipX; Skipped; 022; 1; ----- %3d file%s skipped; 2",
"orphan; OrphList; 001; 1; ----- %3d orphan%s; 0",
"warn; WarnList; 012; 1; warn %3d warning%s; 0",
"warnX; WarnList; 022; 1; warn %3d warning%s; 2; occurred in",
"warnF; WarnF; 042; 1; warn %3d file%s with warnings; 1; had %d warning%s",
"case; BadCase; 014; 1; ERROR %3d file%s mismatched case; 0",
"caseX; BadCase; 024; 1; ERROR %3d file%s mismatched case; 2",
"caseF; CaseF; 044; 1; ERROR %3d file%s with mismatched link(s); 1; had %d mismatched link%s",
"error; LostFile; 014; 2; lostsplit; 0",
"errorX; LostFile; 024; 2; lostsplit; 2",
"errorF; ErrF; 044; 1; ERROR %3d file%s had broken links; 1; had %d broken link%s",
"errorA; LostAnch; 014; 1; ERROR %3d missing named anchor%s; 0",
"errorAX; LostAnch; 024; 1; ERROR %3d missing named anchor%s; 2",
"errorM; LostMap; 014; 1; ERROR %3d missing named image map%s; 0",
"errorMX; LostMap; 024; 1; ERROR %3d missing named image maps%s; 2",
"httpfail; HttpFail; 022; 3; ----- %3d link%s; 0; failed via http",
"httpok; HttpOk; 022; 3; ----- %3d link%s; 0; ok via http",
"mapped; Mapped; 022; 1; ----- %3d link%s %w mapped; 1; mapped to",
);
@UrlForm = (
"${URL_PREFIX}ok; UrlOk; 0001; 3; found %3d url%s; 0; %w ok",
"${URL_PREFIX}moved; UrlMoved; 0002; 3; ----- %3d url%s; 0; moved",
"${URL_PREFIX}host; HostFail; 0104; 3; ERROR %3d host%s; 0; failed; %d host%s:",
"${URL_PREFIX}fail; UrlFail; 0014; 3; ERROR %3d url%s; 0; failed",
"${URL_PREFIX}failX; UrlFailX; 0024; 3; ERROR %3d url%s; 2; failed",
"${URL_PREFIX}failF; UrlFailF; 0044; 1; ERROR %3d file%s with failed urls; 1; had %d failed url%s",
"${URL_PREFIX}skip; UrlWarn; 0012; 3; warn %3d url%s; 0; not checked",
"${URL_PREFIX}mod; UrlMod; 0000; 3; found %3d url%s; 0; %w modified",
"${URL_PREFIX}warn; WarnList; 0012; 1; warn %3d warning%s; 0",
"${URL_PREFIX}warnX; WarnList; 0022; 1; warn %3d warning%s; 2; in %d url%s",
"${URL_PREFIX}warnF; WarnF; 042; 1; warn %3d url%s with warnings; 1; had %d warning%s",
);
#----- Command Line Input ---------------
$MiscFlags = join "|", qw/
case
concise_url
error
flush
forward
help
help_all
htmlonly
http
license
list
net
netmod
netset
no_anchors
no_warn_index
no_query_string
orphan
output_frames
quiet
redirect
retry
silent
textonly
version
warn
xref
/;
$HashOpts = join "|", qw/
dont_output
http_header
ignore
index
javascript
language
local
map
skip
/;
$FullOpts = join "|", qw/
cache
delay
doc
docbase
host
limit
out
output_index
proxy
root
timeout
url_doc_prefix
/;
%CheckedIn = ();
#---------------------------------------------------------------------------
# Misc. startup values
#---------------------------------------------------------------------------
$Arg{'timeout'} = 15; # how long to wait for a response
$Arg{'delay'} = 0; # how long to delay between requests
$Arg{'VERSION'} = $version;
$Headline = "#" . "-" x 60 . "\n"; # used to print lists
$ATTRIB = q~\s*=\s*("\s*([^"]*[^"\s])\s*"|'\s*([^']*[^"\s])\s*'|([^\s"']+))~;
#----- prevent warnings ---------------
%HttpOk = %HttpFail = %CaseF = %WarnF = ();
%UrlWarn = %Ignored = %UrlFailX = %UrlFailF = %LostMap = ();
$UrlOk = $Abort = 0;
###########################################################################
#
# Main code starts here
#
###########################################################################
@ARGV or exit_with($Usage1, $Usage);
@infiles = &ReadArgs(@ARGV);
$OUTPUT_INDEX = $Arg{output_index} if $Arg{output_index};
@UrlHtml = (
"${URL_PREFIX}sum",
"${URL_PREFIX}${OUTPUT_INDEX}",
"${URL_PREFIX}log",
"Index of Linklint results for remote urls",
);
@SiteHtml = (
'summary',
$OUTPUT_INDEX,
'log',
"Index of Linklint results ",
);
$Arg{'DOS'} = $Dos = $^O ?
($^O =~ /win32/i ? 1 : '') :
($ENV{'windir'} ? 1 : '') ;
$pwdprog = $Dos ? 'cd' : 'pwd'; # program to pwd
$HOME = &GetCwd; # this is done twice.
#---------------- Command Line Arguments -------------------------
foreach(@HttpFiles) {
push(@infiles, &ReadHttp($_));
}
$Arg{'doc'} && ! $DB{1} && do {
($DocDir = $Arg{'doc'} ) =~ s#\\#\/#g;
$DocDir =~ m#^/# || ($DocDir = "$HOME/$DocDir" );
-d $DocDir || mkdir($DocDir, 0777) ||
&Error(qq~invalid output directory: "$DocDir"~, 'sys');
$SiteLog = "$DocDir/log.txt";
$UrlLog = "$DocDir/${URL_PREFIX}log.txt";
$LogProgress++;
};
$Arg{'out'} && !$DB{1} && do {
$OutLog = $Arg{'out'};
$OutLog =~ m#^/# || ($OutLog = "$HOME/$OutLog" );
};
$Arg{version} and exit_with($Version_Usage);
$Arg{license} and exit_with($Usage1, $LICENSE);
$Arg{'help_all'} and exit_with($Version_Usage, $Usage, $Help2, $Examples);
$Arg{'help'} and exit_with($Usage1, $Examples, $Usage3);
($LogDir = $Arg{'cache'} || $ENV{'LINKLINT'} || $ENV{'HOME'} || $HOME) =~ s#/$##;
$StatFile = $LogDir . "/linklint.url";
#----- Link Spec's ---------------
$Arg{'case'} && do {
$Dos || &Error("can only check case under Windows/Dos");
$CheckCase++;
};
$IgnoreCase = ($Dos && ! $CheckCase && ! $Arg{'http'} ) ? 1 : 0;
foreach(@infiles) {
s#^http:#http:#i && (push(@CheckUrls, $_), next);
$_ = "/$_" unless m#^/#;
$IgnoreCase && tr/A-Z/a-z/;
$LinkSet{$_}++;
};
%LinkSet || do {
%LinkSet = ( '/', '1');
$Hints{ 'Use a linkset of /@ to check entire site.'}++;
};
foreach(keys %LinkSet) {
m%[\@\#]% || ($Seeds{$_}++, next); # literals
m%^([^\@\#]*/)% && $Seeds{$1}++; # directories
}
%LinkSet && ! %Seeds and die("\nError: Could not form any seeds from the linksets.\n");
$LinkSet = &LinkSet("linkset", *LinkSet);
#----- Flags and Options ---------------
&WantNumber($Arg{'limit'}, "-limit");
&WantNumber($Arg{'timeout'}, "-timeout");
&WantNumber($Arg{'delay'}, "-delay");
$Arg{'error'} && ($PrnFlag |= ($NOXR | $ERR));
$Arg{'warn'} && ($PrnFlag |= ($NOXR | $WARN));
$Arg{'list'} && ($PrnFlag |= ($NOXR | $LIST));
$Arg{'xref'} && ($PrnFlag |= $XREF, $PrnFlag &= ~ $NOXR);
$Arg{'forward'} && ($PrnFlag |= $FWD, $PrnFlag &= ~ ($NOXR | $XREF));
$Arg{'quiet'} && $Quiet++;
$Arg{'silent'} && $Silent++;
$DB{2} && $DbLink++;
$DB{3} && $DbP++;
$CacheNet = $Arg{'retry'} || $Arg{'flush'} || $Arg{'netmod'}
|| $Arg{'netset'};
$CheckNet = $Arg{'netmod'} || $Arg{'netset'} || $Arg{'net'};
$CacheNet && !$CheckNet && !@CheckUrls && do {
$Arg{'flush'} &&
print STDERR "ERROR: -flush requires -net or -netmod or -netset\n";
$Arg{'retry'} &&
print STDERR "ERROR: -retry requires -net or -netmod or -netset\n";
die($ErrUsage);
};
$Limit = $Arg{'limit'} = $Arg{'limit'} || 500; # check at most 500 files
$Arg{'root'} && do {
$DB{1} || chdir($Arg{'root'}) ||
&Error(qq~invalid root directory: "$Arg{'root'}"~, 'sys');
&GetCwd;
$HeaderRoot = $CWD;
};
$ServerRoot = $CWD;
$IgnoreCase && $ServerRoot =~ tr/A-Z/a-z/;
$ServerHost = $Arg{'host'} || '';
#---- get base for links in html files in -doc directory
$DocDir && do {
$DocBase = defined $Arg{'docbase'} ? $Arg{'docbase'} :
$Arg{'http'} ? "http://$ServerHost" :
$Dos ? "file:///$DosDrive|$ServerRoot" : "file://$ServerRoot";
};
$Arg{'tilde'} && do {
($ServerTilde = $Arg{'tilde'} ) =~ s/#/\$1/g;
$ServerTilde = '"' . $ServerTilde . '"';
};
%IGNORE && do {
$Ignore = &LinkSet('ignore', *IGNORE);
};
%INDEX && do {
grep(m/[A-Z]/, @DefIndex = keys %INDEX) && $DefCaseSens++;
$Arg{'index'} = join(" ", @DefIndex);
};
%JAVASCRIPT && do {
foreach( keys %JAVASCRIPT) {
&SetProtoJS($_);
}
};
%MAP && do {
local(@maps);
foreach ( keys %MAP ) {
$NewMap{$_} = s/=([^=]*)$// ? $1 : '';
push(@maps, &Regular($_) );
}
$Arg{'map'} = $ServerMap = join( '|', @maps);
};
!%LOCAL && $LOCAL{'@.map'}++; # default to *.map
%LOCAL && ($Local = &LinkSet("local", *LOCAL));
%DONT_OUTPUT and ( $Dont_Output = join "|", keys %DONT_OUTPUT);
%SKIP && ($Skip = &LinkSet("skip", *SKIP));
$Use_QS = ($Arg{'http'} and not $Arg{no_query_string}) ? 1 : 0;
%LANGUAGE and
$HTTP_HEADER{"Accept-Language: " . join ", ", sort keys %LANGUAGE} = 1;
$Arg{'http'} && do {
$ServerHost || &Error("must set -host when using -http");
&HttpInit(*Arg, *DB, *PASSWORD, *HTTP_HEADER, 'spider');
$Http++;
($Arg{'case'} || $Arg{'orphan'} ) &&
$Hints{"-case and -orphan don't work in -http mode."}++;
};
$DB{1} && do {
foreach ( sort keys %Arg) {
printf "%10s %s\n", $_, &Abbrev(60, $Arg{$_});
}
%PASSWORD || exit;
print "Passwords:\n";
foreach (sort keys %PASSWORD) {
print qq~"$_" $PASSWORD{$_}\n~;
}
exit;
};
#--------------- Local/Remote Site Checking ---------------------
! @CheckUrls && do {
&LogFile( $OutLog || $SiteLog);
&Progress( $Http ? "\nChecking links via http://$ServerHost"
: "\nChecking links locally in $ServerRoot");
&Progress("that match: " . join(" ", keys %LinkSet));
&Progress(&Plural(scalar keys %Seeds, "%d seed%s: ") .
join(" ", sort keys %Seeds));
$Time = -time;
&SetBase("/");
foreach (sort keys %Seeds) {
$_ = &UniqueUrl($_);
&Progress("\nSeed: $_");
&WasCached($_, "\n") || &LinkLint(0, $_, "\n");
}
$Time += time;
$DirList = keys %DirList;
&CheckOrphan(*DirList,*OrphList,*BadCase, $Arg{'orphan'}, $CheckCase);
&ProcessLocal;
&PrintOutput(*SiteForm, *SiteSummary, $DocDir, @SiteHtml);
};
$CheckNet && push(@CheckUrls, grep( m#^http://#i, keys %ExtLink));
@CheckUrls || exit;
#--------------- Remote Url Checking ---------------------
$URL_PREFIX &&= $Arg{url_doc_prefix};
$DocDir and $URL_PREFIX =~ m~/~ and do {
$url_doc_dir = "$DocDir/$URL_PREFIX";
$url_doc_dir =~ s~/[^/]+$~~;
-d $url_doc_dir or mkdir($url_doc_dir, 0777) or
Error("Could not mkdir($url_doc_dir)");
};
%WarnList = ();
&LogFile( $OutLog || $UrlLog);
&HttpInit(*Arg, *DB, *PASSWORD, *HTTP_HEADER, 'checkonly');
$CacheNet && &Http'OpenCache($StatFile);
$Arg{'flush'} && &Http'FlushCache(@CheckUrls);
$Arg{'retry'} &&
! (@CheckUrls = &Http'Recheck(@CheckUrls)) &&
die("No urls need to be retried.\n");
%UrlStatus = &Http'CheckURLS(@CheckUrls);
&Http'WriteCaches;
($CheckedUrls = keys %UrlStatus) || exit;
&Http'StatusMsg(*UrlStatus, *UrlOk, *UrlFail, *UrlWarn);