Prevent indexing of pages with multiple months of the content, any
[www.energie.vellum.cz.git] / common.php
index de6252b..34f3ec6 100644 (file)
@@ -20,6 +20,8 @@
 
        if (!isset($head))
                $head="";
+       if (!isset($energie_base))
+               $energie_base="";
 
        unset($have_ent);
        if (isset($HTTP_GET_VARS[    "have_ent"]))
                                .htmlspecialchars("http://".$HTTP_SERVER_VARS["HTTP_HOST"].$HTTP_SERVER_VARS["PHP_SELF"]
                                                ."?".(strlen($HTTP_SERVER_VARS["QUERY_STRING"]) ? $HTTP_SERVER_VARS["QUERY_STRING"] : "detect_ent_glue=1")
                                                                ."&have_ent=detect")
-                               .'">'."\n";
+                               .'" />'."\n";
        fixampvars();
 
        $have_js=(isset($HTTP_GET_VARS["have_js"]) || isset($HTTP_POST_VARS["have_js"])
                        ? "?have_js=1" : "");
        if (isset($detect_js) && !$have_js)
-               $head.='<script type="text/javascript" src="'.(!isset($energie_base) ? "" : $energie_base).'have_js.js"></script>'."\n";
+               $head.='<script type="text/javascript" src="'.$energie_base.'have_js.js"></script>'."\n";
 
        $user_agent=(!isset($HTTP_SERVER_VARS["HTTP_USER_AGENT"]) ? "" : $HTTP_SERVER_VARS["HTTP_USER_AGENT"]);
        if (ereg("[[:<:]]MSIE ([0-9]+)\\.",$user_agent,$msie_major_a))
@@ -65,7 +67,7 @@ function fatal($msg="UNKNOWN")
 {
        global $admin_mail;
 
-       heading(false/*title*/); // it is always safe
+       heading(false/*title*/,false/*indexme*/); // notitle is always safe, don't index the error message
        print("\n<p>&nbsp;<br />&nbsp;</p><hr /><h1 class=\"error\">Nastala chyba pøi zpracování: $msg!</h1>\n"
                        ."<p>Mù¾ete tento problém nahlásit <a href=\"mailto:$admin_mail\">správci tohoto webu</a>.</p>\n");
        footer();
@@ -197,7 +199,9 @@ function img($file,$alt,$attrs="")
 
 function gsm_banking()
 {
-       return(img("img/sluzby_bankovni_pggsm.".(image_supported("video/x-mng") ? "mng" : "gif"),
+       global $energie_base;
+
+       return(img($energie_base."img/sluzby_bankovni_pggsm.".(image_supported("video/x-mng") ? "mng" : "gif"),
                        "Paegas GSM banking","class=\"img-align\""));
 }
 
@@ -380,6 +384,8 @@ function img_href($filename,$text)
 
 function print_pdf_layout($name,$base)
 {
+       global $energie_base;
+
        $imgfmt=(image_supported("image/png") ? "png" : "gif");
        ?>
 <p>Shodný <?php print($name); ?> je dostupný ve dvou rùzných formátech souboru. V&nbsp;pøípadì,
@@ -396,7 +402,7 @@ zvolte pros
 
 <li>
 <table border="0">
-<tr><td><?php print("<a href=\"$base.pdf\">".img("img/adobe-pdficon-alpha.".(image_supported("image/png") ? "png" : "gif"),
+<tr><td><?php print("<a href=\"$base.pdf\">".img($energie_base."img/adobe-pdficon-alpha.".(image_supported("image/png") ? "png" : "gif"),
                        "Adobe PDF")."</a>"); ?></td>
        <td><?php print(data_href("$base.pdf","Dokument PDF")); ?></td>
        </tr>
@@ -404,7 +410,7 @@ zvolte pros
 <blockquote>
 <table border="0">
 <tr><td><a href="http://www.adobe.com/products/acrobat/readstep.html"><?php
-       print(img("img/adobe-getacro.".(image_supported("image/png") ? "png" : "gif"),"Get Adobe Acrobat Reader"));
+       print(img($energie_base."img/adobe-getacro.".(image_supported("image/png") ? "png" : "gif"),"Get Adobe Acrobat Reader"));
        ?></a></td>
        <td class="smaller">Soubor je ve formátu <span class="italic">Adobe Acrobat</span>,
        pro jeho pøeètení si prosím nainstalujte
@@ -559,6 +565,21 @@ function input_text($name,$size,$default_value="",$addons="")
        return($r);
 }
 
+function form_charset()
+{
+       // CSacek-2.1.9+ required (mod_czech support dropped!)
+       // We MUST have input coded in "iso-8859-2" as we use
+       // "csacekRecodeInput Off", CSacek otherwise tries to recode input but CSacek
+       // _cannot_ know the encoding used by the client (moreover it IGNORES POST
+       // data MIME type, even if provided by Lynx 2.8.4dev.11, Mozilla 1.0.0
+       // doesn't provide anything).
+       // "iso-8859-2" should be replaced by $HTTP_SERVER_VARS["HTTP_X_CLIENT_CHARSET"]
+       // and "csacekRecodeInput On"(default) when CSacek fixes support of "utf-8"
+       // input-decoding, details in my mail <20020620134930.GA18761@short.ucw.cz>.
+
+       return('enctype="application/x-www-form-urlencoded" accept-charset="iso-8859-2"');
+}
+
 function print_form_radkova_inzerce($readonly,$total,$submit_name,$submit_value)
 {
        global $have_js,$text,$doklad;
@@ -566,7 +587,7 @@ function print_form_radkova_inzerce($readonly,$total,$submit_name,$submit_value)
        $addons=(!$readonly ? "" : " readonly=\"readonly\"");
        ?>
 <blockquote>
-<form action="inzerat-submit.php<?php print($have_js); ?>" method="post">
+<form action="inzerat-submit.php<?php print($have_js); ?>" method="post" <?php print(form_charset()); ?>>
 <table border="1" width="100%" cellpadding="5">
 <tr><td align="center"><table border="0">
        <tr><td align="left" class="tab-head">Text inzerátu</td></tr>
@@ -599,7 +620,7 @@ function print_form_radkova_inzerce($readonly,$total,$submit_name,$submit_value)
               >Zaslat daòový doklad?</td><td colspan="3"><input type="checkbox" name="doklad"<?php
                        print(""
                                        // some hacks as "readonly" not supported for "checkbox"es (->"disabled" for them)
-                                       .($readonly ? "" : " onclick=\"sum_total(this)\"")
+                                       .(!($have_js || $readonly) ? "" : " onclick=\"sum_total(this)\"")
                                        .(!($have_js || $readonly) ? "" : " disabled=\"disabled\"")
                                        .(!isset($doklad) ? "" : " checked=\"checked\"")
                                        .ereg_replace(" readonly=\"readonly\"","",$addons)." />");
@@ -611,7 +632,8 @@ function print_form_radkova_inzerce($readonly,$total,$submit_name,$submit_value)
        </table></td></tr>
 <tr><td align="center" id="submit_button"><?php
                print("<input type=\"submit\" name=\"$submit_name\" value=\"".htmlspecialchars($submit_value)."\""
-                               ." onclick=\"return(validate(this.form))\" />");
+                               .(!($have_js || $readonly) ? "" : " onclick=\"return(validate(this.form))\"")
+                               ." />");
                ?></td></tr>
 </table></form>
 </blockquote>
@@ -629,12 +651,22 @@ function footer_img($url,$text,$size)
 
 function a_href($url,$contents)
 {
-       global $have_ent;
-
-       print("<a href=\"");
-       if (ereg("^[a-z]+://",$url) && !$have_ent)
-               $url="redirect.php?location=".urlencode($url);
-       print(htmlspecialchars($url)."\">$contents</a>");
+       global $have_ent,$energie_base;
+
+       $r="<a href=\"";
+       $urlent=htmlspecialchars($url);
+            if ($url==$urlent)
+               $r.=$url;
+       else if (!ereg("^[a-z]+://",$url))      // $url is our resource
+               $r.=$urlent;
+       else if (isset($have_ent) && !$have_ent)        // non-ent client
+               $r.=$url;
+       else if ($have_ent) // ent client
+               $r.=$urlent;
+       else // unknown client, htmlspecialchars() should not be needed here
+               $r.=htmlspecialchars($energie_base."redirect.php?location=".urlencode($url));
+       $r.="\">$contents</a>";
+       return($r);
 }
 
 function footer($delimit=true)
@@ -645,19 +677,22 @@ function footer($delimit=true)
                exit();
        $footer_passed=true;
 
-       global $cvs_id_html,$viewcvs,$viewcvs,$HTTP_SERVER_VARS;
+       global $cvs_id_html,$viewcvs,$viewcvs,$HTTP_SERVER_VARS,$energie_base;
        if ($delimit)
                print("<p>&nbsp;</p>\n");
        $uri="uri=".urlencode("http://".$HTTP_SERVER_VARS["HTTP_HOST"].$HTTP_SERVER_VARS["REQUEST_URI"]);
        ?>
 <hr />
 <table border="0" width="100%">
-<tr><td align="left"><span class="cvs-id"><?php print($cvs_id_html); ?></span></td><td align="right"><?php
+<tr class="footer"><td align="left"><span class="cvs-id"><?php print($cvs_id_html); ?></span></td><td align="right"><?php
                        print(""
                                        .a_href("http://validator.w3.org/check?$uri",
-                                                       img("img/valid-xhtml11.".(image_supported("image/png") ? "png" : "gif"),"Valid XHTML 1.1!"))
+                                                       img($energie_base."img/valid-xhtml11.".(image_supported("image/png") ? "png" : "gif"),"Valid XHTML 1.1!"))
                                        .a_href("http://jigsaw.w3.org/css-validator/validator?warning=2&profile=css2&$uri",
-                                                       img("img/vcss."         .(image_supported("image/png") ? "png" : "gif"),"Valid CSS!"))
+                                                       img($energie_base."img/vcss."         .(image_supported("image/png") ? "png" : "gif"),"Valid CSS!"))
+                                       // missing trailing '/' is required by http://www.w3.org/Style/CSS/Buttons/Menu #<li> 4
+                                       .a_href("http://www.w3.org/Style/CSS/Buttons",'<span style="background-color: #ffcc66;">'
+                                                       .img($energie_base."img/mwcts."        .(image_supported("image/png") ? "png" : "gif"),"Made with CSS").'</span>')
                                        );
                        ?></td></tr>
 </table>
@@ -675,20 +710,17 @@ function no_cache()
        header("Pragma: no-cache");                                // HTTP/1.0
 }
 
-function heading($title=false)
+function heading($title=true,$indexme=true)
 {
-       global $HTTP_SERVER_VARS,$msie_major,$mozilla_major,$title_tail,$head_css,$have_css,$head,$heading_done,$title_prefix,$force_charset;
+       global $msie_major,$mozilla_major,$title_tail,$head_css,$have_css,$head,$heading_done,$title_prefix,$force_charset;
 
        if (isset($heading_done))
                return;
        $heading_done=true;
 
-       if (isset($force_charset))
-               $client_charset=$force_charset;
-       else
-               $client_charset=(!isset($HTTP_SERVER_VARS["CLIENT_CHARSET"]) ? "iso-8859-2" : $HTTP_SERVER_VARS["CLIENT_CHARSET"]);
-       // When "CLIENT_CHARSET" is set we MUST NOT explicitely specify our "charset"
-       header("Content-type: text/html".(isset($HTTP_SERVER_VARS["CLIENT_CHARSET"]) ? "" : "; charset=$client_charset"));
+       // $HTTP_SERVER_VARS["CLIENT_CHARSET"] ignored (mod_czech support dropped!)
+       $client_charset=(isset($force_charset) ? $force_charset : "iso-8859-2");
+       header("Content-type: text/html; charset=$client_charset");
        header("Content-Style-Type: text/css");
        if (!isset($msie_major) || $msie_major>=4) {
                print('<?xml version="1.0" encoding="'.$client_charset.'"?>'."\n");
@@ -717,11 +749,13 @@ body {
 :link    { color: aqua;   background-color: transparent; }
 :visited { color: teal;   background-color: transparent; }
 h1,h2    { color: yellow; background-color: transparent; }
+.footer img { vertical-align: middle; }
 <?php
                if (isset($head_css))
                        print(trim($head_css)."\n");
                print("--></style>\n");
                }
+       print('<meta name="robots" content="'.($indexme ? "" : "no" ).'index,follow" />'."\n");
        if (isset($head))
                print($head);
        print("</head><body");
@@ -729,8 +763,8 @@ h1,h2    { color: yellow; background-color: transparent; }
                print(" bgcolor=\"black\" text=\"white\" link=\"aqua\" vlink=\"teal\"");
        print(">\n");
        if ($title)
-               print("<h1 class=\"centered\">"
+               print("<h1 class=\"centered\"><a href=\"/\">"
                                .img("img/eap-title.".(image_supported("image/png") ? "png" : "gif"),"Energie & Peníze")
-                               ."</h1>\n");
+                               ."</a></h1>\n");
 }
 ?>