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]."@$cvs_mailhost\">".$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         $user_agent=(!isset($HTTP_SERVER_VARS["HTTP_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         $have_style=!isset($mozilla_major) || $mozilla_major!=4;
  29         $have_css=true; // doesn't hurt anybody AFAIK
  30
  31 function addpercents($url)
  32 {
  33         $r=$c="";
  34         foreach(preg_split('//', $url, -1, PREG_SPLIT_NO_EMPTY) as $c)
  35                 if (ereg("[a-zA-Z0-9]",$c))
  36                         $r.=$c;
  37                 else
  38                         $r.=sprintf("%%%02X",ord($c));
  39         return($r);
  40 }
  41
  42 function fatal($msg="UNKNOWN")
  43 {
  44         global $admin_mail;
  45
  46         print("\n<p>&nbsp;<br />&nbsp;</p><hr /><h1 class=\"error\">Nastala chyba pøi zpracování: $msg!</h1>\n"
  47                         ."<p>Mù¾ete tento problém nahlásit <a href=\"mailto:$admin_mail\">správci tohoto webu</a>.</p>\n");
  48         footer();
  49 }
  50
  51 function prepvar($name,$regex=".",$require=true)
  52 {
  53         global $HTTP_GET_VARS,$HTTP_POST_VARS;
  54
  55              if (isset($HTTP_GET_VARS[$name]))
  56                 $v=$HTTP_GET_VARS[$name];
  57         else if (isset($HTTP_POST_VARS[$name]))
  58                 $v=$HTTP_POST_VARS[$name];
  59         else
  60                 unset($v);
  61
  62         $name_html="Parametr <span class=\"quote\">".htmlspecialchars($name)."</span>";
  63
  64         $regex="^$regex\$";
  65         if (isset($v) && !ereg($regex,$v))
  66                 fatal("$name_html nevyhovuje po¾adovanému regexu <span class=\"quote\">".htmlspecialchars($regex)."</span>");
  67         if (!isset($v) && $require)
  68                 fatal("$name_html je vy¾adován");
  69
  70         if (!isset($v))
  71                 return(0);
  72
  73         $globals[$name]=$v;
  74         return($v);
  75 }
  76
  77 function db_connect()
  78 {
  79         global $db_host,$db_user,$db_pwd,$db_name;
  80         global $db_link;
  81
  82         if (isset($db_link))
  83                 return;
  84         if (!($db_link=mysql_connect($db_host,$db_user,$db_pwd)))
  85                 fatal("MySQL connect: ".mysql_error());
  86         if (!mysql_select_db($db_name,$db_link))
  87                 fatal("MySQL database select: ".mysql_error());
  88 }
  89
  90 function db_query($query)
  91 {
  92         global $db_link;
  93
  94         db_connect();
  95         if (!($r=mysql_query($query,$db_link)))
  96                 fatal("MySQL query \"$query\": ".mysql_error());
  97         return($r);
  98 }
  99
 100 function db_row($query)
 101 {
 102         $q=db_query($query);
 103         $r=mysql_fetch_row($q);
 104         mysql_free_result($q);
 105         return($r);
 106 }
 107
 108 function db_array($query)
 109 {
 110         $q=db_query($query);
 111         $r=mysql_fetch_array($q);
 112         mysql_free_result($q);
 113         return($r);
 114 }
 115
 116 function db_item($query)
 117 {
 118         $row=db_row($query);
 119         return($row[0]);
 120 }
 121
 122 function num2greg($num)
 123 {
 124         $r="";
 125         $vals=array(1=>"I",5=>"V",10=>"X",50=>"L",100=>"C",500=>"D",1000=>"M");
 126         krsort($vals,SORT_NUMERIC);
 127         foreach($vals as $val=>$sym) {
 128                 while ($num<0 && $num+$val<-$num) {
 129                         $r=substr($r,0,-1).$sym.substr($r,-1,1);
 130                         $num+=$val;
 131                         }
 132                 while (10*$num>=8*$val+(substr($val,0,1)=="1")) {
 133                         $r=$r.$sym;
 134                         $num-=$val;
 135                         }
 136                 }
 137         return($r);
 138 }
 139
 140 function month_a($year,$month,$month_last=0,$sequential=0)
 141 {
 142         global $tb_obsah,$obsah_year_base;
 143
 144         if (!$month_last || !$sequential)
 145                 list($month_last,$sequential)=db_row("select month_last,sequential from $tb_obsah where year='$year' and month='$month'");
 146         $month_full=sprintf("%02d".($month==$month_last ? "" : "-%02d"),$month,$month_last);
 147
 148         $r=array("year"=>$year,"month"=>$month,"month_last"=>$month_last,"month_full"=>$month_full,
 149                         "name"=>"$month"    .($month==$month_last ? "" : "-$month_last")."/$year",
 150                         "img" =>"img/eap-$year-${month_full}.jpeg",
 151                         "icon"=>"img/eap-$year-${month_full}s.jpeg",
 152                         );
 153         $r["name_full"]=$r["name"]
 154                         ." ($sequential".($month==$month_last ? "" : "-".($sequential+$month_last-$month)).")"
 155                         ." - ".num2greg($year-$obsah_year_base+1).". roèník";
 156         return($r);
 157 }
 158
 159 function img_size($width,$height)
 160 {
 161         global $have_style;
 162
 163         return(($have_style ? "style=\"border:0;width:${width}px;height:${height}px\"" : "border=\"0\"")
 164                         ." width=\"$width\" height=\"$height\"");
 165 }
 166
 167 function img($file,$alt,$attrs="")
 168 {
 169         list($width,$height)=getimagesize($file);
 170         return("<img src=\"$file\" alt=\"".htmlspecialchars($alt)."\" ".img_size($width,$height)
 171                         .($attrs=="" ? "" : " ".$attrs)." />");
 172 }
 173
 174 function gsm_banking()
 175 {
 176         return(img("img/sluzby_bankovni_pggsm.gif","Paegas GSM banking","class=\"img-align\""));
 177 }
 178
 179 function price_a()
 180 {
 181         if (!($f=fopen("objednavka.js","r")))
 182                 fatal("Nepodaøilo se naèíst seznam dostupného zbo¾í");
 183         $r=array();
 184         while (($s=fgets($f,0x1000))) {
 185                 if (!($s=trim($s)))
 186                         break;
 187                 if (!(ereg("^want_price\\[ *'([^']*)'\\]=([0-9]*);$",$s,$matched)))
 188                         continue;
 189                 $r[$matched[1]]=$matched[2];
 190                 }
 191         fclose($f);
 192         return($r);
 193 }
 194
 195 function title_name($year,$month)
 196 {
 197              if (isset($year) && isset($month)) {
 198                 $month_a=month_a($year,$month);
 199                 return("Èíslo ".$month_a["name_full"]);
 200                 }
 201         else if (isset($year))
 202                 return("Roèník $year");
 203         else
 204                 return("V¹echny roèníky");
 205 }
 206
 207 function title_month($year,$month)
 208 {
 209   $month_a=month_a($year,$month);
 210         return(""
 211                         ."<table border=\"0\" width=\"100%\">\n"
 212                         ."<tr><td align=\"center\"><table border=\"1\" cellpadding=\"10\">\n"
 213                         ."<tr><td align=\"center\">".img($month_a["img"],"titulní stránka ".$month_a["name"])."</td></tr>\n"
 214                         ."</table></td></tr>\n"
 215                         ."</table>\n"
 216                         );
 217 }
 218
 219 function title_icons_table_month($year,$month,$month_last,$sequential)
 220 {
 221         global $tb_clanek;
 222
 223         $month_a=month_a($year,$month,$month_last,$sequential);
 224         print("<table border=\"0\">"
 225                         ."<tr><th align=\"center\">".$month_a["name"]."</th></tr>\n"
 226                         ."<tr><td align=\"center\" valign=\"top\">"
 227                                 .img($month_a["icon"],"titulní stránka ".$month_a["name_full"])."</td></tr>\n"
 228                         ."<tr><td align=\"left\" valign=\"top\" class=\"nowrap\">\n"
 229                                 ."&bull;&nbsp;<a href=\"title.php?year=$year&amp;month=$month\">titulní strana</a><br />\n"
 230                                 ."&bull;&nbsp;<a href=\"obsah.php?year=$year&amp;month=$month\">obsah</a><br />\n");
 231         $result=db_query("select name,id from $tb_clanek where year=$year and month=$month order by id");
 232         while ($row=mysql_fetch_array($result))
 233                 print("&bull;&nbsp;<a href=\"clanek.php?year=$year&amp;month=$month&amp;id=".$row["id"]."\">"
 234                                 .htmlspecialchars($row["name"])."</a><br />\n");
 235         mysql_free_result($result);
 236         print("</td></tr></table>");
 237 }
 238
 239 function title_icons($year,$month)
 240 {
 241         global $tb_obsah;
 242
 243         print("<h2>"
 244                 .(isset($year) ? "<a id=\"year_$year\">" : "")
 245                 .title_name(&$year,&$month)
 246                 .(isset($year) ? "</a>" : "")
 247                 ."</h2>\n");
 248
 249         $result=db_query("select year,month,month_last,sequential from $tb_obsah"
 250                         .(isset($year) || isset($month) ? " where" : "")
 251                         .(isset($year ) ? " year=$year"   : "")
 252                         .(isset($year) && isset($month) ? " and" : "")
 253                         .(isset($month) ?   " month=$month" : "")
 254                         ." order by year,month");
 255         $split=4;
 256
 257         // $year variable changes its meaning here!!!
 258         if (isset($year))
 259                 $wanted_year=$year;
 260         $year=0;
 261
 262         $fin_split="";
 263         $fin_year="";
 264         while ($row=mysql_fetch_array($result)) {
 265                 $row["month"     ]--;
 266                 $row["month_last"]--;
 267
 268                 if ($row["year"]!=$year) {
 269                         print($fin_split.$fin_year);
 270
 271                         $year=$row["year"];
 272                         print(""
 273                                         .(!isset($wanted_year) ? "<p><a id=\"year_$year\">&nbsp;</a></p>" : "")
 274                                         ."<table border=\"0\" width=\"100%\"><tr><td align=\"center\"><table border=\"1\" cellpadding=\"5\">\n"
 275                                         ."<tr><th colspan=\"$split\">Roèník $year (<a href=\"obsah.php?year=$year\">obsahy èísel</a>)</th></tr>\n"
 276                                         );
 277                         $fin_year="</table></td></tr></table>\n";
 278                         $fin_split="";
 279                         $month=-1;
 280                         $floor=-1;
 281                         }
 282                 while ($floor<floor($row["month"]/$split)) {
 283                         print($fin_split."<tr>");
 284                         $fin_split="</tr>\n";
 285                         $floor++;
 286                         $month=$floor*$split-1;
 287                         }
 288                 while ($month+1<$row["month"]) {
 289                         print("<td></td>");
 290                         $month++;
 291                         }
 292                 print("<td align=\"center\" valign=\"top\""
 293                                 .($row["month_last"]!=$row["month"] ? " colspan=\"".($row["month_last"]+1-$row["month"])."\"" : "")
 294                                 .">");
 295                 title_icons_table_month($year,$row["month"]+1,$row["month_last"]+1,$row["sequential"]);
 296                 print("</td>\n");
 297                 $month=$row["month_last"];
 298                 }
 299         mysql_free_result($result);
 300         print($fin_split.$fin_year);
 301 }
 302
 303 function title($year,$month)
 304 {
 305         if (isset($year) && isset($month))
 306                 return(title_month( $year, $month));
 307         else
 308                 return(title_icons(&$year,&$month));
 309 }
 310
 311 function image_supported($mime)
 312 {
 313         global $HTTP_SERVER_VARS;
 314
 315         if (!isset($HTTP_SERVER_VARS["HTTP_ACCEPT"]))
 316                 return(false);
 317         $exp=explode(",",$HTTP_SERVER_VARS["HTTP_ACCEPT"]);
 318         while (($s=array_shift($exp))) {
 319                 $s=trim(ereg_replace(";.*","",$s));
 320                 if ($s==$mime)
 321                         return(true);
 322                 }
 323         return(false);
 324 }
 325
 326 // PHP dirname() is broken: ("/1/2/3"=>"/1/2", "/1"->"/")
 327 function dirnameslashed($filename)
 328 {
 329         $r=dirname($filename);
 330         if (substr($r,-1)!="/")
 331                 $r.="/";
 332         return($r);
 333 }
 334
 335 function usersize($size)
 336 {
 337         $suffix_a=array("","k","M","G","T");
 338         while ($size>=1000 && sizeof($suffix_a)>=2) {
 339                 $size/=1000;
 340                 array_shift($suffix_a);
 341                 }
 342         return(round($size)." ".$suffix_a[0]."B");
 343 }
 344
 345 function data_href($filename,$text)
 346 {
 347         return("<a href=\"$filename\">$text (".usersize(filesize($filename)).")</a>");
 348 }
 349
 350 function footer($delimit=true)
 351 {
 352         // deadlock prevention:
 353         global $footer_passed;
 354         if (isset($footer_passed))
 355                 exit();
 356         $footer_passed=true;
 357
 358         global $cvs_id_html,$viewcvs,$viewcvs,$HTTP_SERVER_VARS;
 359         if ($delimit)
 360                 print("<p>&nbsp;</p>\n");
 361         $uri="uri=".addpercents("http://".$HTTP_SERVER_VARS["HTTP_HOST"].$HTTP_SERVER_VARS["REQUEST_URI"]);
 362         ?>
 363 <hr />
 364 <table border="0" width="100%">
 365 <tr><td align="left"><span class="cvs-id"><?php print($cvs_id_html); ?></span></td><td align="right"><a
 366         href="http://validator.w3.org/check?<?php
 367                 print($uri); ?>"><img src="http://www.w3.org/Icons/valid-xhtml11"
 368                 <?php print(img_size(88,31)); ?> alt="Valid XHTML 1.1!" /></a><a
 369         href="http://jigsaw.w3.org/css-validator/validator?warning=2&amp;profile=css2&amp;<?php
 370                 print($uri); ?>"><img src="http://jigsaw.w3.org/css-validator/images/vcss"
 371                 <?php print(img_size(88,31)); ?> alt="Valid CSS!" /></a></td></tr>
 372 </table>
 373 </body></html>
 374 <?php
 375         exit();
 376 }
 377
 378 // Stolen from: php-manual.html#function.header
 379 function no_cache()
 380 {
 381         header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");          // Date in the past
 382         header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT"); // always modified
 383         header("Cache-Control: no-cache, must-revalidate");        // HTTP/1.1
 384         header("Pragma: no-cache");                                // HTTP/1.0
 385 }
 386
 387 function heading($title=false)
 388 {
 389         global $HTTP_SERVER_VARS,$msie_major,$mozilla_major,$title_tail,$head_css,$have_css,$head;
 390
 391         header("Content-type: text/html");
 392         header("Content-Style-Type: text/css");
 393         if (!isset($msie_major) || $msie_major>=4)
 394                 print('<?xml version="1.0" encoding="'.$HTTP_SERVER_VARS["CLIENT_CHARSET"].'"?>'."\n");
 395 ?>
 396 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
 397 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="cs">
 398 <head><title>Energie &amp; peníze<?php
 399         if (isset($title_tail))
 400                 print(": ".htmlspecialchars($title_tail));
 401         print("</title>\n");
 402         if ($have_css) {
 403 ?><style type="text/css"><!--
 404 .cvs-id   { font-family: monospace; }
 405 .error    { color: red;   background-color: transparent; }
 406 .quote    { font-family: monospace; }
 407 .nowrap   { white-space: nowrap; }
 408 .centered { text-align: center; }
 409 body {
 410                 background-color: black;
 411                 color: white;
 412                 }
 413 :link    { color: aqua;   background-color: transparent; }
 414 :visited { color: teal;   background-color: transparent; }
 415 h1,h2    { color: yellow; background-color: transparent; }
 416 <?php
 417                 if (isset($head_css))
 418                         print(trim($head_css)."\n");
 419                 print("--></style>\n");
 420                 }
 421         if (isset($head))
 422                 print($head);
 423         print("</head><body");
 424         if (isset($mozilla_major) && $mozilla_major==4)
 425                 print(" bgcolor=\"black\" text=\"white\" link=\"aqua\" vlink=\"teal\"");
 426         print(">\n");
 427         if ($title)
 428                 print("<h1 class=\"centered\">"
 429                                 .img("img/eap-title.".(image_supported("image/png") ? "png" : "gif"),"Energie & Peníze")
 430                                 ."</h1>\n");
 431 }
 432 ?>