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#!/usr/bin/perl -w |
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|
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#------------------------------------------------------------ |
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# docs.cgi |
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# |
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# Web-based text file viewer. |
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# Copyright Paul Mutton, 2000. |
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#------------------------------------------------------------ |
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|
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use strict; |
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use CGI; |
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|
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$| = 1; |
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|
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# Settings |
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my ($left) = "../left.inc" ; |
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my ($title) = "../title.inc"; |
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my ($bottom) = "../bottom.inc"; |
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|
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|
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my ($query) = new CGI; |
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|
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# Note filenames may only have one dot in them, in the ".txt". |
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# This prevents malicious users using "../" to view files. |
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my ($doc) = ($query->param('doc') =~ /^\s*([^\.]*?\.txt)\s*$/); |
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|
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print "Content-type: text/html\n\n"; |
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|
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unless (defined $doc) { |
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print "The link to this page was broken - it must specify a .txt file."; |
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exit; |
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} |
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|
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# Prevent hackers from supplying a malformed document string. |
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# I.e. only allow normal characters, slashes and dots. |
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unless ($doc =~ /^[a-zA-Z_\-0-9\.\/]+$/) { |
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print "Go Away, you nasty hax0r!"; |
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exit; |
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} |
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$doc = "../documentation/".$doc; |
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|
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print <<"END"; |
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> |
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|
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<!-- |
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docs.cgi |
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Web-based text file viewer and formatter. |
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Created by pjm2 19/10/2000 |
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Last modified 02/11/2000 |
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--> |
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|
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<html> |
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|
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<head> |
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<title>The i-scream Project Documentation Viewer</title> |
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<meta name="description" content="The i-scream Project is a central monitoring system for Unix, Linux and NT servers."> |
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<meta name="keywords" content="i-scream, project, central monitoring system, unix, linux, nt, server, alert"> |
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<meta name="generator" content="notepad on acid, aye."> |
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</head> |
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|
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<body bgcolor="#ffffff" link="#0000ff" alink="#3333cc" vlink="#3333cc" text="#000066"> |
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|
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<table border="0" cellpadding="2" cellspacing="2"> |
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<tr> |
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<td valign="top"> |
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END |
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|
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&print_html($left); |
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|
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print <<"END"; |
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|
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</td> |
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<td valign="top"> |
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END |
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|
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&print_html($title); |
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&print_file($doc); |
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&print_html($bottom); |
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|
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print <<"END"; |
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|
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</td> |
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</tr> |
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</table> |
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|
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</body> |
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|
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</html> |
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END |
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|
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exit 0; |
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|
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# Print a file, whilst escaping HTML: - |
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sub print_file ($) { |
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my ($urls) = '(' . join ('|', qw{ |
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http |
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telnet |
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gopher |
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file |
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wais |
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ftp |
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} ) |
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. ')'; |
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|
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my ($ltrs) = '\w'; |
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my ($gunk) = '/#~:.?+=&%@!\-'; |
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my ($punc) = '.:?\-'; |
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my ($any) = "${ltrs}${gunk}${punc}"; |
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my ($filename) = @_; |
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open(FILE, $filename) or die "Cannot open $filename: $!\n"; |
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print "<pre>\n"; |
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# Use $_ implicitly throughout. |
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while (<FILE>) { |
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# Must do the next line first! |
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s/&/&/g; |
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s/</</g; |
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s/>/>/g; |
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s/"/"/g; |
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s/\b($urls:[$any]+?)(?=[$punc]*[^$any]|$)/<a href="$1">$1<\/a>/igox; |
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print; |
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} |
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print "</pre>"; |
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} |
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|
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# Print a file without escaping HTML: - |
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sub print_html ($) { |
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my ($filename) = @_; |
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print `cat $filename 2>&1`; |
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} |
