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root/i-scream/misc/scripts/cgi/taillog.cgi
Revision: 1.5
Committed: Fri May 10 17:44:23 2002 UTC (22 years, 6 months ago) by tdb
Branch: MAIN
Changes since 1.4: +1 -1 lines
Log Message:
The regex for the grep part didn't work.

File Contents

# User Rev Content
1 tdb 1.1 #!/usr/bin/perl
2    
3     require CGI;
4    
5     my $query = new CGI;
6    
7     my ($n) = $query->param('n');
8     my ($grep) = $query->param('grep');
9    
10     if (defined $grep) {
11     if ($grep eq "") {
12     $grepStr = "";
13     }
14     else {
15 tdb 1.5 if ($grep =~ /^[a-zA-Z_\-0-9\.\/]+$/) {
16 tdb 1.4 $grepStr = " | grep $grep";
17     }
18     else {
19     $grepStr = "";
20     }
21 tdb 1.1 }
22     }
23     else {
24     $grep = "";
25     }
26    
27     if (!defined $n) {
28     $n = 50;
29     }
30    
31 tdb 1.2 unless ($n =~ /^[0-9]{1,6}$/) {
32 tdb 1.1 $n = 50;
33     }
34    
35     print "Content-type: text/html\n\n";
36    
37     my(@lines) = `tail -n$n ../www/server.log$grepStr`;
38    
39     print <<"END";
40     <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
41    
42     <html>
43    
44     <head>
45     <title>The i-scream Project Logfile Tailer</title>
46     <meta name="description" content="The i-scream Project is a central
47     monitoring system for Unix, Linux and NT servers.">
48     <meta name="keywords" content="i-scream, project, central monitoring
49     system, unix, linux, nt, server, alert">
50     <meta name="generator" content="notepad on acid, aye.">
51     </head>
52    
53     <body bgcolor="#ffffff" link="#0000ff" alink="#3333cc" vlink="#3333cc"
54     text="#000066">
55    
56     <a href="http://www.i-scream.org.uk"><img border="0" src="/i-scream.gif"></a>
57    
58     <form method="GET" action="taillog.cgi">
59     <font size="+1"><b>
60 tdb 1.2 Last <input type="text" name="n" value="$n" size="5" maxlength="5"> lines
61 tdb 1.1 of the server logfile.
62     | grep </b><input type="text" name="grep" value="$grep" size="20" maxlength="40">
63     <input type="submit" value="Enter">
64     </font>
65     </form>
66     <hr>
67     <pre>
68     END
69    
70     foreach my $line (@lines) {
71     print HTML_encode($line);
72     }
73    
74     print <<"END";
75     </pre>
76     </body>
77    
78     </html>
79     END
80    
81     exit 0;
82    
83     #------------------------------------------------------
84     # sub HTML_encode
85     #
86     # escape HTML characters that may cause problems when
87     # shown either in the <body> or within text fields.
88     #------------------------------------------------------
89     sub HTML_encode ($){
90     my ($encoded) = @_;
91     $encoded =~ s/&/&amp;/g;
92     $encoded =~ s/"/&quot;/g;
93     $encoded =~ s/</&lt;/g;
94     $encoded =~ s/>/&gt;/g;
95     $encoded =~ s/^(.{0})(.*core\.loggers\..*: started)$/<hr size=10 color=blue>$2/;
96 tdb 1.3 $encoded =~ s/(.*)] (.*)}:(.*)/$1] <i>$2}<\/i>:<b>$3<\/b>/;
97 tdb 1.1 return $encoded;
98     }
99