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#!/usr/local/bin/perl
##############################################################################
# TextCounter Version 1.2 #
# Copyright 1996 Matt Wright mattw@worldwidemart.com #
# Created 3/14/96 Last Modified 5/10/96 #
# Scripts Archive at: http://www.worldwidemart.com/scripts/ #
##############################################################################
# COPYRIGHT NOTICE #
# Copyright 1996 Matthew M. Wright All Rights Reserved. #
# #
# TextCounter may be used and modified free of charge by anyone so long as #
# this copyright notice and the comments above remain intact. By using this #
# code you agree to indemnify Matthew M. Wright from any liability that #
# might arise from it's use. #
# #
# Selling the code for this program without prior written consent is #
# expressly forbidden. In other words, please ask first before you try and #
# make money off of my program. #
# #
# Obtain permission before redistributing this software over the Internet or #
# in any other medium. In all cases copyright and header must remain intact.#
##############################################################################
# Define Variables
# Data Dir is the directory on your server that you wish to store the
# count files in. Each page that has the counter on it will have it's own
# file.
$dirname="/home/mnnews/public_html/cgi-bin";
# Valid-URI allows you to set up the counter to only work under specific
# directories on your server. Include any of these directories as they
# appear in a URI, into this array. More information on URI's available in
# README.
@valid_uri = ('/');
# Invalid-URI allows the owner of this script to set up the counter so
# that certain portions of the web server that may be included in Valid-URI
# cannot use the program. Leave this commented out if you wish not to
# block out certain parts.
# @invalid_uri = ('/');
##############################################################################
# Set Options
# Show Link allows you to add a link around the counter to point to
# either instructions explaining to users how to set this up on the system
# (useful if a system administrator wants to allow anyone to set things up
# themselves). Setting it to 0 will make no link, otherwise put the URL
# you want linked to the count here.
$show_link = "";
# When Auto-Create is enabled, users will be able to auto-create the
# count on their home pages by simply imbedding the Server Side Includes
# call. Setting auto_create to 1 enables it, 0 will disable it. Only
# users in @valid_uri will be allowed to auto create.
$auto_create = "1";
# Show Date will show the date of when the count began if you set this
# option to 1. It will appear in yor document as [Count] hits since [Date].
# Set this to 0 and it will simply return the [Count].
$show_date = "0";
# Lock Seconds will define the number of seconds the script should sit
# and wait for the lock file to be gone before it will overwrite it if it
# is still there. Every now and then a user will interrupt a page, causing
# the script to halt and leave a lock file in place before the lock file
# could be removed. This defines how long it waits.
$lock_sec = "3";
# Padding Size define how many numbers will be shown as your count. For
# instance, if you want your count to say 00065 and have the zeros padded
# up to five digits, then set $pad_size = "5"; If the number goes higher
# than the pad_size, don't worry, there just won't be any zero's tacked
# onto the front.
$pad_size = "5";
##############################################################################
# Print Content Type Header For Browser
print "Content-type: text/html\n\n";
# Get the page location from the DOCUMENT_URI environment variable.
$count_page = "$ENV{'DOCUMENT_URI'}";
# Chop off any trailing /'s
if ($count_page =~ /\/$/) {
chop($count_page);
}
$count_page =~ s/\//_/g;
$lock_file = "$count_page\.lock";
# Check Valid-URI to make sure user can use this program.
&check_uri;
# Check to see if file is locked by program already in use.
&check_lock($lock_sec);
# If the file exists, get the date and count out of it. Otherwise, if
# auto_create is allowed, create a new account. If neither of these are
# true, return an error.
if (-e "$data_dir$count_page") {
open(COUNT,"$data_dir$count_page");
$line = <COUNT>;
chop($line) if $line =~ /\n$/;
close(COUNT);
($date,$count) = split(/\|\|/,$line);
}
elsif ($auto_create == 1) {
&create;
}
else {
&error('page_not_found');
}
# Increment Count.
$count++;
$print_count = $count;
# Get Count Length for use in padding.
$count_length = length($count);
# Pad the number if it is smaller than $pad_size.
for ($i = $pad_size;$i > $count_length;$i--) {
$print_count = "0$print_count";
}
# Print the Count, Link and Date depending on what user has specified
# they wish to print.
if ($show_date == 1) {
if ($show_link =~ /http:\/\//) {
print "<a href=\"$show_link\">$print_count</a> hits since $date";
}
else {
print "$print_count hits since $date";
}
}
else {
if ($show_link =~ /http:\/\//) {
print "<a href=\"$show_link\">$print_count</a>";
}
else {
print "$print_count";
}
}
# Open the count file and write the new count that has been incremented.
open(COUNT,">$data_dir$count_page") || &error('could_not_increment');
print COUNT "$date\|\|$count";
close(COUNT);
# Remove Lock File for next time script is run on that HTML page.
&clean_up;
sub check_uri {
$uri_check = "0";
foreach $uri (@valid_uri) {
if ($ENV{'DOCUMENT_URI'} =~ /$uri/) {
$uri_check = "1";
last;
}
}
foreach $uri (@invalid_uri) {
if ($ENV{'DOCUMENT_URI'} =~ /$uri/) {
$uri_check = "0";
last;
}
}
if ($uri_check == 0) {
&error('bad_uri');
}
}
sub create {
($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time);
@months = ("January","February","March","April","May","June","July",
"August","September","October","November","December");
$date = "@months[$mon] $mday, 19$year";
$count = "0";
open(COUNT,">$data_dir$count_page") || &error('count_not_created');
print COUNT "$date\|\|$count";
close(COUNT);
}
sub error {
$error = shift(@_);
if ($error eq 'page_not_found') {
print "[TextCounter Fatal Error: This Page Not Found\; Auto-Create Option Disabled]";
}
elsif ($error eq 'bad_uri') {
print "[TextCounter Fatal Error: This Page Not In Valid URI]";
}
elsif ($error eq 'count_not_created') {
print "[TextCounter Fatal Error: Could Not Write to File $datadir$count_page]";
}
elsif ($error eq 'could_not_increment') {
print "[TextCounter Fatal Error: Could Not Increment Counter]";
}
exit;
}
sub check_lock {
$time = $_[0];
for ($i = 1;$i <= $time; $i++) {
if (-e "$data_dir$lock_file") {
sleep 1;
}
else {
open(LOCK,">$data_dir$lock_file");
print LOCK "0";
close(LOCK);
last;
}
}
}
sub clean_up {
unlink("$data_dir$lock_file");
}
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