common.php

   1 <?php // $Id$
   2
   3         error_reporting(E_ALL);
   4
   5         include("config.php");
   6
   7         // $viewcvs prepared by "config.php"
   8         if ($viewcvs==$HTTP_SERVER_VARS["SCRIPT_NAME"])
   9                 unset($viewcvs);
  10         $cvs_id_split=split(" ",$cvs_id);
  11         if (count($cvs_id_split)==8) {
  12                 $cvs_id_split[1]="<a href=\"$viewcvs\">".$cvs_id_split[1]."</a>";
  13                 $cvs_id_split[5]="<a href=\"mailto:".$cvs_id_split[5]."@".$HTTP_SERVER_VARS["HTTP_HOST"]."\">".$cvs_id_split[5]."</a>";
  14                 }
  15         $cvs_id_html=join(" ",$cvs_id_split);
  16
  17         $have_js=(isset($HTTP_GET_VARS["have_js"]) || isset($HTTP_POST_VARS["have_js"])
  18                         ? "?have_js=1" : "");
  19         if (isset($detect_js) && !$have_js)
  20                 $head.='<script type="text/javascript" src="have_js.js"></script>'."\n";
  21
  22         $user_agent=$HTTP_SERVER_VARS["HTTP_USER_AGENT"];
  23         if (ereg("[[:<:]]MSIE ([0-9]+)\\.",$user_agent,$msie_major_a))
  24                 $msie_major=$msie_major_a[1];
  25         else if (ereg("[[:<:]]Mozilla/([0-9]+)\\.",$user_agent,$mozilla_major_a))
  26                 $mozilla_major=$mozilla_major_a[1];
  27
  28         $have_css=!ereg("Mozilla/4\\.[5-7]",$user_agent);
  29
  30 function addpercents($url)
  31 {
  32         $r=$c="";
  33         foreach(preg_split('//', $url, -1, PREG_SPLIT_NO_EMPTY) as $c)
  34                 if (ereg("[a-zA-Z0-9]",$c))
  35                         $r.=$c;
  36                 else
  37                         $r.=sprintf("%%%02X",ord($c));
  38         return($r);
  39 }
  40
  41 function fatal($msg="UNKNOWN")
  42 {
  43         global $admin_mail;
  44
  45         print("\n<br /><h1 class=\"error\">Nastala chyba pøi zpracování: $msg!</h1>\n"
  46                         ."<p>Mù¾ete tento problém nahlásit <a href=\"mailto:$admin_mail\">správci tohoto webu</a>.</p>\n");
  47         footer();
  48 }
  49
  50 function prepvar($name,$regex=".",$require=true)
  51 {
  52         global $HTTP_GET_VARS,$HTTP_POST_VARS;
  53
  54              if (isset($HTTP_GET_VARS[$name]))
  55                 $v=$HTTP_GET_VARS[$name];
  56         else if (isset($HTTP_POST_VARS[$name]))
  57                 $v=$HTTP_POST_VARS[$name];
  58         else
  59                 unset($v);
  60
  61         $name_html="Parametr <span class=\"quote\">".htmlspecialchars($name)."</span>";
  62
  63         $regex="^$regex\$";
  64         if (isset($v) && !ereg($regex,$v))
  65                 fatal("$name_html nevyhovuje po¾adovanému regexu <span class=\"quote\">".htmlspecialchars($regex)."</span>");
  66         if (!isset($v) && $require)
  67                 fatal("$name_html je vy¾adován");
  68
  69         if (!isset($v))
  70                 return(0);
  71
  72         $globals[$name]=$v;
  73         return($v);
  74 }
  75
  76 function db_connect()
  77 {
  78         global $db_host,$db_user,$db_pwd,$db_name;
  79         global $db_link;
  80
  81         if (isset($db_link))
  82                 return;
  83         if (!($db_link=mysql_connect($db_host,$db_user,$db_pwd)))
  84                 fatal("MySQL connect: ".mysql_error());
  85         if (!mysql_select_db($db_name,$db_link))
  86                 fatal("MySQL database select: ".mysql_error());
  87 }
  88
  89 function db_query($query)
  90 {
  91         global $db_link;
  92
  93         db_connect();
  94         if (!($r=mysql_query($query,$db_link)))
  95                 fatal("MySQL query \"$query\": ".mysql_error());
  96         return($r);
  97 }
  98
  99 function db_row($query)
 100 {
 101         $q=db_query($query);
 102         $r=mysql_fetch_row($q);
 103         mysql_free_result($q);
 104         return($r);
 105 }
 106
 107 function db_item($query)
 108 {
 109         $row=db_row($query);
 110         return($row[0]);
 111 }
 112
 113 function num2greg($num)
 114 {
 115         $r="";
 116         $vals=array(1=>"I",5=>"V",10=>"X",50=>"L",100=>"C",500=>"D",1000=>"M");
 117         krsort($vals,SORT_NUMERIC);
 118         foreach($vals as $val=>$sym) {
 119                 while ($num<0 && $num+$val<-$num) {
 120                         $r=substr($r,0,-1).$sym.substr($r,-1,1);
 121                         $num+=$val;
 122                         }
 123                 while (10*$num>=8*$val+(substr($val,0,1)=="1")) {
 124                         $r=$r.$sym;
 125                         $num-=$val;
 126                         }
 127                 }
 128         return($r);
 129 }
 130
 131 function month_a($year,$month,$month_last=0,$sequential=0)
 132 {
 133         global $tb_obsah,$obsah_year_base;
 134
 135         if (!$month_last || !$sequential)
 136                 list($month_last,$sequential)=db_row("select month_last,sequential from $tb_obsah where year='$year' and month='$month'");
 137         $month_full=sprintf("%02d".($month==$month_last ? "" : "-%02d"),$month,$month_last);
 138
 139         $r=array("year"=>$year,"month"=>$month,"month_last"=>$month_last,"month_full"=>$month_full,
 140                         "name"=>"$month"    .($month==$month_last ? "" : "-$month_last")."/$year",
 141                         "img" =>"img/eap-$year-${month_full}.jpeg",
 142                         "icon"=>"img/eap-$year-${month_full}s.jpeg",
 143                         );
 144         $r["name_full"]=$r["name"]
 145                         ." ($sequential".($month==$month_last ? "" : "-".($sequential+$month_last-$month)).")"
 146                         ." - ".num2greg($year-$obsah_year_base+1).". roèník";
 147         return($r);
 148 }
 149
 150 function img_size($width,$height)
 151 {
 152         return("style=\"border:0;width:${width}px;height:${height}px\" width=\"$width\" height=\"$height\"");
 153 }
 154
 155 function img($file,$alt,$attrs="")
 156 {
 157         list($width,$height)=getimagesize($file);
 158         return("<img src=\"$file\" alt=\"".htmlspecialchars($alt)."\" ".img_size($width,$height)
 159                         .($attrs=="" ? "" : " ".$attrs)." />");
 160 }
 161
 162 function gsm_banking()
 163 {
 164         return(img("img/sluzby_bankovni_pggsm.gif","Paegas GSM banking","class=\"img-align\""));
 165 }
 166
 167 function price_a()
 168 {
 169         if (!($f=fopen("objednavka.js","r")))
 170                 fatal("Nepodaøilo se naèíst seznam dostupného zbo¾í");
 171         $r=array();
 172         while (($s=fgets($f,0x1000))) {
 173                 if (!($s=trim($s)))
 174                         break;
 175                 if (!(ereg("^want_price\\[ *'([^']*)'\\]=([0-9]*);$",$s,$matched)))
 176                         continue;
 177                 $r[$matched[1]]=$matched[2];
 178                 }
 179         fclose($f);
 180         return($r);
 181 }
 182
 183 function title_name($year,$month)
 184 {
 185              if (isset($year) && isset($month)) {
 186                 $month_a=month_a($year,$month);
 187                 return("Èíslo ".$month_a["name_full"]);
 188                 }
 189         else if (isset($year))
 190                 return("Roèník $year");
 191         else
 192                 return("V¹echny roèníky");
 193 }
 194
 195 function title_month($year,$month)
 196 {
 197   $month_a=month_a($year,$month);
 198         return(""
 199                         ."<table border=\"0\" width=\"100%\">\n"
 200                         ."<tr><td align=\"center\"><table border=\"1\" cellpadding=\"10\">\n"
 201                         ."<tr><td align=\"center\">".img($month_a["img"],"titulní stránka ".$month_a["name"])."</td></tr>\n"
 202                         ."</table></td></tr>\n"
 203                         ."</table>\n"
 204                         );
 205 }
 206
 207 function title_icons_table_month($year,$month,$month_last,$sequential)
 208 {
 209         $month_a=month_a($year,$month,$month_last,$sequential);
 210         print("<a href=\"title.php?year=$year&amp;month=$month\">"
 211                                 .img($month_a["icon"],"titulní stránka ".$month_a["name_full"])."</a><br />"
 212                         ."<a href=\"obsah.php?year=$year&amp;month=$month\">obsah ".$month_a["name"]."</a>"
 213                         );
 214 }
 215
 216 function title_icons($year,$month)
 217 {
 218         global $tb_obsah;
 219
 220         print("<h2>"
 221                 .(isset($year) ? "<a name=\"year_$year\">" : "")
 222                 .title_name(&$year,&$month)
 223                 .(isset($year) ? "</a>" : "")
 224                 ."</h2>\n");
 225
 226         $result=db_query("select year,month,month_last,sequential from $tb_obsah"
 227                         .(isset($year) || isset($month) ? " where" : "")
 228                         .(isset($year ) ? " year=$year"   : "")
 229                         .(isset($year) && isset($month) ? " and" : "")
 230                         .(isset($month) ?   " month=$month" : "")
 231                         ." order by year,month");
 232         $split=6;
 233
 234         // $year variable changes its meaning here!!!
 235         if (isset($year))
 236                 $wanted_year=$year;
 237         $year=0;
 238
 239         $fin_split="";
 240         $fin_year="";
 241         while ($row=mysql_fetch_array($result)) {
 242                 $row["month"     ]--;
 243                 $row["month_last"]--;
 244
 245                 if ($row["year"]!=$year) {
 246                         print($fin_split.$fin_year);
 247
 248                         $year=$row["year"];
 249                         print(""
 250                                         .(!isset($wanted_year) ? "<p><a name=\"year_$year\">&nbsp;</a></p>" : "")
 251                                         ."<table border=\"0\" width=\"100%\"><tr><td align=\"center\"><table border=\"1\" cellpadding=\"5\">\n"
 252                                         ."<tr><th colspan=\"$split\">Roèník $year (<a href=\"obsah.php?year=$year\">obsahy èísel</a>)</th></tr>\n"
 253                                         );
 254                         $fin_year="</table></td></tr></table>\n";
 255                         $fin_split="";
 256                         $month=-1;
 257                         $floor=-1;
 258                         }
 259                 while ($floor<floor($row["month"]/$split)) {
 260                         print($fin_split."<tr>");
 261                         $fin_split="</tr>\n";
 262                         $floor++;
 263                         $month=$floor*$split-1;
 264                         }
 265                 while ($month+1<$row["month"]) {
 266                         print("<td></td>");
 267                         $month++;
 268                         }
 269                 print("<td align=\"center\""
 270                                 .($row["month_last"]!=$row["month"] ? " colspan=\"".($row["month_last"]+1-$row["month"])."\"" : "")
 271                                 .">");
 272                 title_icons_table_month($year,$row["month"]+1,$row["month_last"]+1,$row["sequential"]);
 273                 print("</td>\n");
 274                 $month=$row["month_last"];
 275                 }
 276         mysql_free_result($result);
 277         print($fin_split.$fin_year);
 278 }
 279
 280 function title($year,$month)
 281 {
 282         if (isset($year) && isset($month))
 283                 return(title_month( $year, $month));
 284         else
 285                 return(title_icons(&$year,&$month));
 286 }
 287
 288 function image_supported($mime)
 289 {
 290         global $HTTP_SERVER_VARS;
 291
 292         if (!isset($HTTP_SERVER_VARS["HTTP_ACCEPT"]))
 293                 return(false);
 294         $exp=explode(",",$HTTP_SERVER_VARS["HTTP_ACCEPT"]);
 295         while (($s=array_shift($exp))) {
 296                 $s=trim(ereg_replace(";.*","",$s));
 297                 if ($s==$mime)
 298                         return(true);
 299                 }
 300         return(false);
 301 }
 302
 303 function footer()
 304 {
 305         // deadlock prevention:
 306         global $footer_passed;
 307         if (isset($footer_passed))
 308                 exit();
 309         $footer_passed=true;
 310
 311         global $cvs_id_html,$viewcvs,$viewcvs,$HTTP_SERVER_VARS;
 312         ?>
 313 <p>&nbsp;</p>
 314 <hr />
 315 <table border="0" width="100%">
 316 <tr><td align="left"><span class="cvs-id"><?php print($cvs_id_html); ?></span></td><td align="right"><a
 317         href="http://validator.w3.org/check/referer"><img src="http://www.w3.org/Icons/valid-xhtml10"
 318                 <?php print(img_size(88,31)); ?> alt="Valid XHTML 1.0!" /></a><a
 319         href="http://jigsaw.w3.org/css-validator/validator?warning=2&amp;profile=css2&amp;uri=<?php
 320                 print(addpercents("http://".$HTTP_SERVER_VARS["HTTP_HOST"].$HTTP_SERVER_VARS["REQUEST_URI"]));
 321                 ?>"><img src="http://jigsaw.w3.org/css-validator/images/vcss"
 322                 <?php print(img_size(88,31)); ?> alt="Valid CSS!" /></a></td></tr>
 323 </table>
 324 </body></html>
 325         <?php
 326         exit();
 327 }
 328
 329 // Stolen from: php-manual.html#function.header
 330 function no_cache()
 331 {
 332         header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");          // Date in the past
 333         header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT"); // always modified
 334         header("Cache-Control: no-cache, must-revalidate");        // HTTP/1.1
 335         header("Pragma: no-cache");                                // HTTP/1.0
 336 }
 337
 338 function heading()
 339 {
 340         global $msie_major,$mozilla_major,$title_tail,$head_css,$have_css,$head;
 341
 342         header("Content-type: text/html; charset=iso-8859-2");
 343         if (!isset($msie_major) || $msie_major>=4)
 344                 print('<?xml version="1.0" encoding="iso-8859-2"?>'."\n");
 345 ?>
 346 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 347 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="cs" lang="cs">
 348 <head><title>Energie &amp; peníze<?php
 349         if (isset($title_tail))
 350                 print(": $title_tail");
 351         print("</title>\n");
 352         if ($have_css) {
 353 ?><style type="text/css"><!--
 354 .cvs-id  { font-family: monospace; }
 355 .error   { color: red;    background-color: transparent; }
 356 .quote   { font-family: monospace; }
 357 body {
 358                 background-color: black;
 359                 color: white;
 360                 }
 361 :link    { color: aqua;   background-color: transparent; }
 362 :visited { color: teal;   background-color: transparent; }
 363 h1,h2    { color: yellow; background-color: transparent; }
 364 <?php
 365                 if (isset($head_css))
 366                         print(trim($head_css)."\n");
 367                 print("--></style>\n");
 368                 }
 369         if (isset($head))
 370                 print($head);
 371         print("</head><body");
 372         if (isset($mozilla_major) && $mozilla_major==4)
 373                 print(" bgcolor=\"black\" text=\"white\" link=\"cyan\" vlink=\"teal\"");
 374         print(">\n");
 375 }
 376 ?>