aboutsummaryrefslogtreecommitdiff
path: root/perl/crawlink.pl
diff options
context:
space:
mode:
Diffstat (limited to 'perl/crawlink.pl')
-rwxr-xr-xperl/crawlink.pl443
1 files changed, 0 insertions, 443 deletions
diff --git a/perl/crawlink.pl b/perl/crawlink.pl
deleted file mode 100755
index 53be500cc..000000000
--- a/perl/crawlink.pl
+++ /dev/null
@@ -1,443 +0,0 @@
-#!/usr/bin/perl
-#
-# crawlink.pl
-#
-# This script crawls across all found links below the given "root" URL.
-# It reports all good and bad links to stdout. This code was based on the
-# checklink.pl script I wrote ages ago.
-#
-# Written to use 'curl' for URL checking.
-#
-# Author: Daniel Stenberg <daniel@haxx.se>
-# Version: 0.3 Jan 3, 2001
-#
-# HISTORY
-#
-# 0.3 - The -i now adds regexes that if a full URL link matches one of those,
-# it is not followed. This can then be used to prevent this script from
-# following '.*\.cgi', specific pages or whatever.
-#
-# 0.2 - Made it only HEAD non html files (i.e skip the GET). Makes it a lot
-# faster to skip large non HTML files such as pdfs or big RFCs! ;-)
-# Added a -c option that allows me to pass options to curl.
-#
-# 0.1 - The given url works as the root. This script will only continue
-# and check other URLs if the leftmost part of the new URL is identical
-# to the root URL.
-#
-
-use strict;
-
-my $in="";
-my $verbose=0;
-my $usestdin;
-my $linenumber;
-my $help;
-my $external;
-my $curlopts;
-
-my @ignorelist;
-
- argv:
-if($ARGV[0] eq "-v" ) {
- $verbose++;
- shift @ARGV;
- goto argv;
-}
-elsif($ARGV[0] eq "-c" ) {
- $curlopts=$ARGV[1];
- shift @ARGV;
- shift @ARGV;
- goto argv;
-}
-elsif($ARGV[0] eq "-i" ) {
- push @ignorelist, $ARGV[1];
- shift @ARGV;
- shift @ARGV;
- goto argv;
-}
-elsif($ARGV[0] eq "-l" ) {
- $linenumber = 1;
- shift @ARGV;
- goto argv;
-}
-elsif($ARGV[0] eq "-h" ) {
- $help = 1;
- shift @ARGV;
- goto argv;
-}
-elsif($ARGV[0] eq "-x" ) {
- $external = 1;
- shift @ARGV;
- goto argv;
-}
-
-my $geturl = $ARGV[0];
-my $firsturl= $geturl;
-
-#
-# Define a hash array to hold all root URLs to visit/we have visited
-#
-my %rooturls;
-$rooturls{$ARGV[0]}=1;
-
-if(($geturl eq "") || $help) {
- print "Usage: $0 [-hilvx] <full URL>\n",
- " Use a traling slash for directory URLs!\n",
- " -c [data] Pass [data] as argument to every curl invoke\n",
- " -h This help text\n",
- " -i [regex] Ignore root links that match this pattern\n",
- " -l Line number report for BAD links\n",
- " -v Verbose mode\n",
- " -x Check non-local (external?) links only\n";
- exit;
-}
-
-my $proxy;
-if($curlopts ne "") {
- $proxy=" $curlopts";
- #$proxy =" -x 194.237.142.41:80";
-}
-
-# linkchecker, URL will be appended to the right of this command line
-# this is the one using HEAD:
-my $linkcheck = "curl -s -m 20 -I$proxy";
-
-# as a second attempt, this will be used. This is not using HEAD but will
-# get the whole frigging document!
-my $linkcheckfull = "curl -s -m 20 -i$proxy";
-
-# htmlget, URL will be appended to the right of this command line
-my $htmlget = "curl -s$proxy";
-
-# Parse the input URL and split it into the relevant parts:
-
-my $getprotocol;
-my $getserver;
-my $getpath;
-my $getdocument;
-
-my %done;
-my %tagtype;
-my $allcount=0;
-my $badlinks=0;
-
-sub SplitURL {
- my $inurl = $_[0];
- if($inurl=~ /^([^:]+):\/\/([^\/]*)\/(.*)\/(.*)/ ) {
- $getprotocol = $1;
- $getserver = $2;
- $getpath = $3;
- $getdocument = $4;
- }
- elsif ($inurl=~ /^([^:]+):\/\/([^\/]*)\/(.*)/ ) {
- $getprotocol = $1;
- $getserver = $2;
- $getpath = $3;
- $getdocument = "";
-
- if($getpath !~ /\//) {
- $getpath ="";
- $getdocument = $3;
- }
-
- }
- elsif ($inurl=~ /^([^:]+):\/\/(.*)/ ) {
- $getprotocol = $1;
- $getserver = $2;
- $getpath = "";
- $getdocument = "";
- }
- else {
- print "Couldn't parse the specified URL, retry please!\n";
- exit;
- }
-}
-
-my @indoc;
-
-sub GetRootPage {
- my $geturl = $_[0];
- my $in="";
- my $code=200;
- my $type="text/plain";
-
- my $pagemoved=0;
- open(HEADGET, "$linkcheck $geturl|") ||
- die "Couldn't get web page for some reason";
-
- while(<HEADGET>) {
- #print STDERR $_;
- if($_ =~ /HTTP\/1\.[01] (\d\d\d) /) {
- $code=$1;
- if($code =~ /^3/) {
- $pagemoved=1;
- }
- }
- elsif($_ =~ /^Content-Type: ([\/a-zA-Z]+)/) {
- $type=$1;
- }
- elsif($pagemoved &&
- ($_ =~ /^Location: (.*)/)) {
- $geturl = $1;
-
- &SplitURL($geturl);
-
- $pagemoved++;
- last;
- }
- }
- close(HEADGET);
-
- if($pagemoved == 1) {
- print "Page is moved but we don't know where. Did you forget the ",
- "traling slash?\n";
- exit;
- }
-
- if($type ne "text/html") {
- # there no point in getting anything but HTML
- $in="";
- }
- else {
- open(WEBGET, "$htmlget $geturl|") ||
- die "Couldn't get web page for some reason";
- while(<WEBGET>) {
- my $line = $_;
- push @indoc, $line;
- $line=~ s/\n/ /g;
- $line=~ s/\r//g;
- $in=$in.$line;
- }
- close(WEBGET);
- }
- return ($in, $code, $type);
-}
-
-sub LinkWorks {
- my $check = $_[0];
-
-# URL encode:
-# $check =~s/([^a-zA-Z0-9_:\/.-])/uc sprintf("%%%02x",ord($1))/eg;
-
- my @doc = `$linkcheck \"$check\"`;
-
- my $head = 1;
-
-# print "COMMAND: $linkcheck \"$check\"\n";
-# print $doc[0]."\n";
-
- boo:
- if( $doc[0] =~ /^HTTP[^ ]+ (\d+)/ ) {
- my $error = $1;
-
- if($error < 400 ) {
- return "GOOD";
- }
- else {
-
- if($head && ($error >= 500)) {
- # This server doesn't like HEAD!
- @doc = `$linkcheckfull \"$check\"`;
- $head = 0;
- goto boo;
- }
- return "BAD";
- }
- }
- return "BAD";
-}
-
-
-sub GetLinks {
- my $in = $_[0];
- my @result;
-
- while($in =~ /[^<]*(<[^>]+>)/g ) {
- # we have a tag in $1
- my $tag = $1;
-
- if($tag =~ /^<!--/) {
- # this is a comment tag, ignore it
- }
- else {
- if($tag =~ /(src|href|background|archive) *= *(\"[^\"]\"|[^ \)>]*)/i) {
- my $url=$2;
- if($url =~ /^\"(.*)\"$/) {
- # this was a "string" now $1 has removed the quotes:
- $url=$1;
- }
-
-
- $url =~ s/([^\#]*)\#.*/$1/g;
-
- if($url eq "") {
- # if the link was nothing than a #-link it may now have
- # been emptied completely so then we skip the rest
- next;
- }
-
- if($done{$url}) {
- # if this url already is done, do next
- $done{$url}++;
- if($verbose) {
- print " FOUND $url but that is already checked\n";
- }
- next;
- }
-
- $done{$url} = 1; # this is "done"
-
- push @result, $url;
- if($tag =~ /< *([^ ]+)/) {
- $tagtype{$url}=$1;
- }
- }
- }
- }
- return @result;
-}
-
-
-while(1) {
- $geturl=-1;
- for(keys %rooturls) {
- if($rooturls{$_} == 1) {
- if($_ !~ /^$firsturl/) {
- $rooturls{$_} += 1000; # don't do this, outside our scope
- if($verbose) {
- print "SKIP: $_\n";
- }
- next;
- }
- $geturl=$_;
- last;
- }
- }
- if($geturl == -1) {
- last;
- }
-
- #
- # Splits the URL in its different parts
- #
- &SplitURL($geturl);
-
- #
- # Returns the full HTML of the root page
- #
- my ($in, $error, $ctype) = &GetRootPage($geturl);
-
- $rooturls{$geturl}++; # increase to prove we have already got it
-
- if($ctype ne "text/html") {
- # this is not HTML, we skip this
- if($verbose == 2) {
- print "Non-HTML link, skipping\n";
- next;
- }
- }
-
- if($error >= 400) {
- print "ROOT page $geturl returned $error\n";
- next;
- }
-
- print " ==== $geturl ====\n";
-
- if($verbose == 2) {
- printf("Error code $error, Content-Type: $ctype, got %d bytes\n",
- length($in));
- }
-
- #print "protocol = $getprotocol\n";
- #print "server = $getserver\n";
- #print "path = $getpath\n";
- #print "document = $getdocument\n";
- #exit;
-
- #
- # Extracts all links from the given HTML buffer
- #
- my @links = &GetLinks($in);
-
- for(@links) {
- my $url = $_;
- my $link;
-
- if($url =~ /^([^:]+):/) {
- my $prot = $1;
- if($prot !~ /http/i) {
- # this is an unsupported protocol, we ignore this
- next;
- }
- $link = $url;
- }
- else {
- if($external) {
- next;
- }
-
- # this is a link on the same server:
- if($url =~ /^\//) {
- # from root
- $link = "$getprotocol://$getserver$url";
- }
- else {
- # from the scanned page's dir
- my $nyurl=$url;
-
- if(length($getpath) &&
- ($getpath !~ /\/$/) &&
- ($nyurl !~ /^\//)) {
- # lacks ending slash, add one to the document part:
- $nyurl = "/".$nyurl;
- }
- $link = "$getprotocol://$getserver/$getpath$nyurl";
- }
- }
-
- my $success = &LinkWorks($link);
-
- my $count = $done{$url};
-
- $allcount += $count;
-
- print "$success $count <".$tagtype{$url}."> $link $url\n";
-
- if("BAD" eq $success) {
- $badlinks++;
- if($linenumber) {
- my $line =1;
- for(@indoc) {
- if($_ =~ /$url/) {
- print " line $line\n";
- }
- $line++;
- }
- }
- }
- else {
- # the link works, add it if it isn't in the ingore list
- my $ignore=0;
- for(@ignorelist) {
- if($link =~ /$_/) {
- $ignore=1;
- }
- }
- if(!$ignore) {
- # not ignored, add
- $rooturls{$link}++; # check this if not checked already
- }
- }
-
- }
-}
-
-if($verbose) {
- print "$allcount links were checked";
- if($badlinks > 0) {
- print ", $badlinks were found bad";
- }
- print "\n";
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-09 07:48:49 +0000