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devi@101
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     1 #!/usr/bin/perl
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     2 
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     3 use strict;
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     4 use CGI qw(:standard);
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     5 use utf8;
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     6 
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     7 BEGIN {
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igor@115
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     8     chdir("/etc/lilalo/");
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devi@101
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     9     require l3config;
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    10     l3config::init_config();
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    11 };
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    12 
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    13 sub path_is_correct($);
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    14 sub error($);
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    15 sub remove_extra_slashes_from($);
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    16 sub print_header($);
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    17 sub print_footer;
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    18 sub nav_bar;
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    19 
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    20 sub count_command_lines($);
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    21 
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    22 my $print="";
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    23 my $path = $ENV{PATH_INFO};
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    24 remove_extra_slashes_from($path);
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    25 
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    26 
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    27 my $commands_to_show_at_a_go = $l3config::Config{"commands_to_show_at_a_go"};
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    28 my $start_from_command = "0";
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    29 my $this_page_number=0;
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    30 if ($path =~ s/:(.*)//) {
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    31     $this_page_number = $1;
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    32     $start_from_command = $this_page_number*$commands_to_show_at_a_go;
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    33 }
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    34 
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    35 my $real_path = $l3config::Config{"backend_datadir"} ;
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    36 my $cgi_path = $l3config::Config{"cgi_path"} ;
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    37 my $style_files = $l3config::Config{"frontend_files"} ;
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    38 my $frontend_css = $l3config::Config{"frontend_css"} ;
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    39 
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    40 my $filter=$ENV{QUERY_STRING};
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    41 if ($filter =~ /page=([^&]*)/ ) {
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    42     open(PAGE_NAME, "grep $1 $real_path/sessions-index | tail -1 | sed 's^-<.*^^; s^/[^/]*\$^^'| ");
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    43     my $page_name;
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    44     $page_name=<PAGE_NAME>;
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    45     chomp $page_name;
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    46     my $id="";
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    47     if ($filter =~ /id=([^&]*)/) {
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    48         $id="#$1";
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    49     }
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    50     print "Status: 302 Moved\nLocation: http://xgu.ru/l3/$page_name$id\n\n";
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    51     exit(0);
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    52 }
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    53 elsif ($filter !~ /filter=/) {
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    54 #    $filter="";
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    55 }
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    56 else {
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    57     $filter =~ s@.*filter=@@;
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    58     $filter =~ s@\&.*@@;
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    59 }
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    60 
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    61 my $data_file = "data.xml";
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    62 
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    63 path_is_correct($path)
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    64     or error ("Путь $path содержит недопустимые символы или комбинации символов.");
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    65 
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    66 $real_path .= $path;
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    67 remove_extra_slashes_from($real_path);
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    68 
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    69 # Чувак, ты хотел бы посмотреть на журнал $path
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    70 # Он должен находиться в каталоге $real_path файловой системы\n";
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    71 
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    72 (-d $real_path)
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    73     or error("Каталог <b>$real_path</b> не существует. Проверьте, пожалуйста, URL\n");
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    74 
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    75 if (-e $real_path."/$data_file") {
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    76 
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    77 # В каталоге есть файл $data_file
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    78 # Отлично! Сейчас будем показывать журнал
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    79 
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    80 # Если существуют html и xml файлы,
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    81 # html файл новее чем xml,
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    82 # и CGI-скрипту не передано дополнительных параметров, 
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    83 # используем html файл, иначе перегенируем его
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    84 
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    85     unless ( -e "$real_path/$data_file"
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    86              && -e "$real_path/index.html" 
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    87              && (stat("$real_path/index.html"))[9] > (stat("$real_path/$data_file"))[9] && 0!=0 ) {
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    88 
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    89         my $l3_frontend = "l3-frontend --backend_datafile $real_path/$data_file".
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    90                                      " --output $real_path/index.html".
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    91                                      " --start_from_command $start_from_command ".
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    92                                      " --filter '$filter'";
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    93         system($l3_frontend) == 0
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    94             or error("Файл журнала найден, но возникла ошибка при его обработке:<br/> $!");
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    95     }
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    96 
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    97     {
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    98         local $/;
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    99         open(HTML, "<:utf8", "$real_path/index.html");
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   100         my $html = <HTML>;
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   101 
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   102 # Добавим в начало документа навигационную строку
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   103         my $nav_bar = nav_bar;
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   104         $html =~ s/(<body[^>]*>)/$1$nav_bar/;
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   105 
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   106         $print .= $html;
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   107         close(HTML);
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   108     }
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   109 
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   110 }
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   111 else {
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   112 
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   113 # В этом каталоге нет файла data.xml
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   114 # Но в нём должны быть подкаталоги!
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   115 # Если и их тут нет, то тут вообще делать нечего
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   116 
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   117     $print .= nav_bar;
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   118 
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   119     my @dirs = glob("$real_path/*");
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   120     my $folder_link = "$cgi_path/$path";
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   121     remove_extra_slashes_from($folder_link);
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   122 
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   123     $folder_link =~ s@/[^\/]*/?$@@;
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   124     if ($folder_link) {
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   125         $print .= "<img src='$style_files/folder.up.gif'/><a href='$folder_link'>..</a><br/>";
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   126     }
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   127 
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   128     for my $dir (@dirs) {
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   129         next unless (-d $dir);
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   130         my ($folder_name) = $dir =~ m@.*/(.*)@;
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   131         $folder_link = "$cgi_path/$path/$folder_name";
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   132         $folder_link =~ s@//@/@g;
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   133         $print .= "<img src='$style_files/folder.gif'/><a href='$folder_link'>$folder_name</a><br/>";
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   134     }
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   135 
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   136     $print = print_header("LiLaLo -- ".remove_extra_slashes_from("$cgi_path/$path"))
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   137             .$print
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   138             .print_footer;
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   139 };
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   140 
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   141 binmode STDOUT, ":utf8";
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   142 print header(-charset => "utf-8");
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   143 print $print;
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   144 exit(0);
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   145 
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   146 #----------------------------------------------
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   147 
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   148 
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   149 sub error($)
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   150 {
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   151 my $message = $_[0];
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   152 
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   153 binmode STDOUT, ":utf8";
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   154 print header(-charset => "utf-8");
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   155 
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   156 my $print = "<h2>Извините, произошла ошибка</h2>";
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   157 $print .= $message;
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   158 
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   159 print $print;
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   160 exit(0);
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   161 }
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   162 
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   163 
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   164 sub path_is_correct($)
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   165 {
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   166     my $path = $_[0];
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   167    # return 0 if $path =~ m@/../@;
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   168     return 0 unless $path =~ m@^[a-zA-Z0-9./\@\-]*$@;
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   169     return 1;
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   170 }
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   171 
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   172 sub remove_extra_slashes_from($) 
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   173 {
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   174   while ($_[0] =~ s@//@/@g) {1;};
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   175   return $_[0];
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   176 }
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   177 
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   178 sub print_header($)
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   179 {
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   180     my $title = $_[0];
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   181     "<html>"
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   182     ."<head>"
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   183     ."<meta content='text/html; charset=utf-8' http-equiv='Content-Type' />"
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   184     ."<link rel='stylesheet' href='$frontend_css' type='text/css'/>"
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   185     ."<title>$title</title>"
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   186     ."</head>"
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   187 }
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   188 
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   189 sub print_footer()
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   190 {
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   191     "</html>";
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   192 }
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   193 
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   194 sub nav_bar()
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   195 {
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   196     my $nav_bar="";
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   197     my $skip_first=1;
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   198     my $current_path="";
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   199     for my $path_part (split("/", remove_extra_slashes_from("$cgi_path/$path"))) {
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   200         if ($skip_first) {
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   201             $skip_first--;
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   202             next;
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   203         }
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   204         $current_path .= "/$path_part";
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   205         $nav_bar .= "/<a href='$current_path'>$path_part</a>";
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   206     }
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   207     my $pages=int(count_command_lines("$real_path/$data_file")/$commands_to_show_at_a_go)+1;
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   208     my $i=1;
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   209     while ($i<$pages) {
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   210         if ($i==$this_page_number) {
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   211             $nav_bar .= " <b>:$i</b>";
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   212         } 
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   213         else {
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   214             $nav_bar .= " <a href='$current_path:$i'>:$i</a>";
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   215         }
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   216         $i++;
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   217     }
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   218     $filter = "($filter)" if $filter;
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   219     return "<table class='nav_bar' cellpadding='0' cellspacing='0' width='100%'><tr><td>$nav_bar $filter</td></tr></table>";
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   220 }
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   221 
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   222 sub count_command_lines($)
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   223 #
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   224 # Считает количество строк в файле с данными
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   225 # Грязный временный хак
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   226 #
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   227 {
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   228     my $filename= $_[0];
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   229     return int(`grep '<command>' $filename |wc -l`);
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   230 #    return $filename;
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   231 }
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   232 
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