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Diffstat (limited to 'inc/format.php')
| -rw-r--r-- | inc/format.php | 475 |
1 files changed, 475 insertions, 0 deletions
diff --git a/inc/format.php b/inc/format.php new file mode 100644 index 000000000..806ea5010 --- /dev/null +++ b/inc/format.php @@ -0,0 +1,475 @@ +<? +require_once("conf/dokuwiki.php"); +require_once("inc/common.php"); + + +/** + * Assembles all parts defined by the link formater below + * Returns HTML for the link + */ +function format_link_build($link){ + //make sure the url is XHTML compliant + $link['url'] = str_replace('&','&',$link['url']); + $link['url'] = str_replace('&amp;','&',$link['url']); + + $ret = ''; + $ret .= $link['pre']; + $ret .= '<a href="'.$link['url'].'"'; + if($link['class']) $ret .= ' class="'.$link['class'].'"'; + if($link['target']) $ret .= ' target="'.$link['target'].'"'; + if($link['title']) $ret .= ' title="'.$link['title'].'"'; + if($link['style']) $ret .= ' style="'.$link['style'].'"'; + if($link['more']) $ret .= ' '.$link['more']; + $ret .= '>'; + $ret .= $link['name']; + $ret .= '</a>'; + $ret .= $link['suf']; + return $ret; +} + +/** + * Link Formaters + * + * Each of these functions need to set + * + * $link['url'] URL to use in href="" + * $link['name'] HTML to enclose in <a> with proper special char encoding + * $link['class'] CSS class to set on link + * $link['target'] which target to use (blank) for current window + * $link['style'] Additonal style attribute set with style="" + * $link['title'] Title to set with title="" + * $link['pre'] HTML to prepend to link + * $link['suf'] HTML to append to link + * $link['more'] Additonal HTML to include into the anchortag + * + */ + +function format_link_wiki($link){ + global $conf; + global $ID; //we use this to get the current namespace + //obvious setup + $link['target'] = $conf['target']['wiki']; + $link['style'] = ''; + $link['pre'] = ''; + $link['suf'] = ''; + $link['more'] = 'onclick="return svchk()" onkeypress="return svchk()"'; + + //if links starts with . add current namespace if any + if(strpos($link['url'],'.')===0){ + $ns = substr($ID,0,strrpos($ID,':')); #get current ns + $link['url'] = $ns.':'.substr($link['url'],1); + } + + //if link contains no namespace. add current namespace (if any) + if(strpos($ID,':')!==false && strpos($link['url'],':') === false){ + $ns = substr($ID,0,strrpos($ID,':')); #get current ns + $link['url'] = $ns.':'.$link['url']; + } + + //keep hashlink if exists + list($link['url'],$hash) = split('#',$link['url'],2); + $hash = cleanID($hash); + + //use link without namespace as name + if(empty($link['name'])) $link['name'] = preg_replace('/.*:/','',$link['url']); + $link['name'] = htmlspecialchars($link['name']); + + $link['url'] = cleanID($link['url']); + $link['title'] = $link['url']; + + //set class depending on existance + $file = wikiFN($link['url']); + if(@file_exists($file)){ + $link['class']="wikilink1"; + }else{ + if($conf['autoplural']){ + //try plural/nonplural + if(substr($link['url'],-1) == 's'){ + $try = substr($link['url'],0,-1); + }else{ + $try = $link['url'].'s'; + } + $file = wikiFN($try); + //check if the other form exists + if(@file_exists($file)){ + $link['class']="wikilink1"; + $link['url'] = $try; + }else{ + $link['class']="wikilink2"; + } + }else{ + //no autoplural is wanted + $link['class']="wikilink2"; + } + } + + //construct the full link + $link['url'] = wl($link['url']); + + //add hash if exists + if($hash) $link['url'] .= '#'.$hash; + + return $link; +} + +function format_link_externalurl($link){ + global $conf; + //simple setup + $link['class'] = 'urlextern'; + $link['target'] = $conf['target']['extern']; + $link['pre'] = ''; + $link['suf'] = ''; + $link['style'] = ''; + $link['more'] = 'onclick="return svchk()" onkeypress="return svchk()"'; + $link['url'] = $link['url']; //keep it + $link['title'] = htmlspecialchars($link['url']); + if(!$link['name']) $link['name'] = htmlspecialchars($link['url']); + //thats it :-) + return $link; +} + +//this only works in IE :-( +function format_link_windows($link){ + global $conf; + global $lang; + //simple setup + $link['class'] = 'windows'; + $link['target'] = $conf['target']['windows']; + $link['pre'] = ''; + $link['suf'] = ''; + $link['style'] = ''; + //Display error on browsers other than IE + $link['more'] = 'onclick="if(document.all == null){alert(\''.htmlspecialchars($lang['nosmblinks'],ENT_QUOTES).'\');}" onkeypress="if(document.all == null){alert(\''.htmlspecialchars($lang['nosmblinks'],ENT_QUOTES).'\');}"'; + + if(!$link['name']) $link['name'] = htmlspecialchars($link['url']); + $link['title'] = htmlspecialchars($link['url']); + $link['url'] = str_replace('\\','/',$link['url']); + $link['url'] = 'file:///'.$link['url']; + + return $link; +} + +function format_link_email($link){ + global $conf; + //simple setup + $link['class'] = 'mail'; + $link['target'] = ''; + $link['pre'] = ''; + $link['suf'] = ''; + $link['style'] = ''; + $link['more'] = ''; + + $link['name'] = htmlspecialchars($link['name']); + + //shields up + if($conf['mailguard']=='visible'){ + //the mail name gets some visible encoding + $link['url'] = str_replace('@',' [at] ',$link['url']); + $link['url'] = str_replace('.',' [dot] ',$link['url']); + $link['url'] = str_replace('-',' [dash] ',$link['url']); + }elseif($conf['mailguard']=='hex'){ + for ($x=0; $x < strlen($link['url']); $x++) { + $encode .= '&#x' . bin2hex($link['url'][$x]).';'; + } + $link['url'] = $encode; + } + + $link['title'] = $link['url']; + if(!$link['name']) $link['name'] = $link['url']; + $link['url'] = 'mailto:'.$link['url']; + + return $link; +} + +function format_link_interwiki($link){ + global $conf; + + //obvious ones + $link['class'] = 'interwiki'; + $link['target'] = $conf['target']['interwiki']; + $link['pre'] = ''; + $link['suf'] = ''; + $link['more'] = 'onclick="return svchk()" onkeypress="return svchk()"'; + + //get interwiki short name + list($wiki,$link['url']) = split('>',$link['url'],2); + $wiki = strtolower(trim($wiki)); //always use lowercase + $link['url'] = trim($link['url']); + if(!$link['name']) $link['name'] = $link['url']; + + //encode special chars + $link['name'] = htmlspecialchars($link['name']); + + //set default to google + $url = 'http://www.google.com/search?q='; + $ico = 'google'; + + //load interwikilinks + //FIXME: loading this once may enhance speed a little bit + $iwlinks = file('conf/interwiki.conf'); + + //add special case 'this' + $iwlinks[] = 'this '.getBaseURL(true).'{NAME}'; + + //go through iwlinks and find URL for wiki + foreach ($iwlinks as $line){ + $line = preg_replace('/#.*/','',$line); //skip comments + $line = trim($line); + list($iw,$iwurl) = preg_split('/\s+/',$line); + if(!$iw or !$iwurl) continue; //skip broken or empty lines + //check for match + if(strtolower($iw) == $wiki){ + $ico = $wiki; + $url = $iwurl; + break; + } + } + + //if ico exists set additonal style + if(@file_exists('interwiki/'.$ico.'.png')){ + $link['style']='background: transparent url('.getBaseURL().'interwiki/'.$ico.'.png) 0px 1px no-repeat;'; + }elseif(@file_exists('interwiki/'.$ico.'.gif')){ + $link['style']='background: transparent url('.getBaseURL().'interwiki/'.$ico.'.gif) 0px 1px no-repeat;'; + } + + //do we stay at the same server? Use local target + if( strpos($url,getBaseURL(true)) === 0 ){ + $link['target'] = $conf['target']['wiki']; + } + + //replace placeholder + if(strstr($url,'{URL}') !== false){ + $link['url'] = str_replace('{URL}',urlencode($link['url']),$url); + }elseif(strstr($url,'{NAME}') !== false){ + $link['url'] = str_replace('{NAME}',$link['url'],$url); + }else{ + $link['url'] = $url.urlencode($link['url']); + } + + $link['title'] = htmlspecialchars($link['url']); + + //done :-) + return $link; +} + + +function format_link_media($link){ + global $conf; + + $link['class'] = 'media'; + $link['style'] = ''; + $link['pre'] = ''; + $link['suf'] = ''; + $link['more'] = 'onclick="return svchk()" onkeypress="return svchk()"'; + $class = 'media'; + + list($link['name'],$title) = split('\|',$link['name'],2); + $t = htmlspecialchars($title); + + //set alignment from spaces + if(substr($link['name'],0,1)==' ' && substr($link['name'],-1,1)==' '){ + $link['pre'] = "</p>\n<div align=\"center\">"; + $link['suf'] = "</div>\n<p>"; + }elseif(substr($link['name'],0,1)==' '){ + #$a = ' align="right"'; + $class = 'mediaright'; + }elseif(substr($link['name'],-1,1)==' '){ + #$a = ' align="left"'; + $class = 'medialeft'; + }else{ + $a = ' align="middle"'; + } + $link['name'] = trim($link['name']); + + //split into src and parameters + list($src,$param) = split('\?',$link['name'],2); + //parse width and height + if(preg_match('#(\d*)(x(\d*))?#i',$param,$size)){ + if($size[1]) $w = $size[1]; + if($size[3]) $h = $size[3]; + } + + //check for nocache param + $nocache = preg_match('/nocache/i',$param); + //do image caching, resizing and src rewriting + $cache = $src; + $isimg = img_cache($cache,$src,$w,$h,$nocache); + + //set link to src if none given + if(!$link['url']){ + $link['url'] = $src; + $link['target'] = $conf['target']['media']; + } + + //prepare name + if($isimg){ + $link['name'] = '<img src="'.getBaseURL().$cache.'"'; + if($w) $link['name'] .= ' width="'.$w.'"'; + if($h) $link['name'] .= ' height="'.$h.'"'; + if($t) $link['name'] .= ' title="'.$t.'"'; + if($a) $link['name'] .= $a; + $link['name'] .= ' class="'.$class.'" border="0" alt="'.$t.'" />'; + }else{ + if($t){ + $link['name'] = $t; + }else{ + $link['name'] = basename($src); + } + } + + return $link; +} + +/** + * Builds an URL list from a RSS feed + */ +function format_rss($url){ + global $lang; + define('MAGPIE_DIR', 'inc/magpie/'); + require_once(MAGPIE_DIR.'/rss_fetch.inc'); + + //disable warning while fetching + $elvl = error_reporting(E_ERROR); + $rss = fetch_rss($url); + error_reporting($elvl); + + $ret = '<ul class="rss">'; + if($rss){ + foreach ($rss->items as $item ) { + $link = array(); + $link['url'] = $item['link']; + $link['name'] = $item['title']; + $link = format_link_externalurl($link); + $ret .= '<li>'.format_link_build($link).'</li>'; + } + }else{ + $link['url'] = $url; + $link = format_link_externalurl($link); + $ret .= '<li>'; + $ret .= '<em>'.$lang['rssfailed'].'</em>'; + $ret .= format_link_build($link); + $ret .= '</li>'; + } + $ret .= '</ul>'; + return $ret; +} + + +function img_cache(&$csrc,&$src,&$w,&$h,$nocache){ + global $conf; + + //container for various paths + $f['full']['web'] = $src; + $f['resz']['web'] = $src; + $f['full']['fs'] = $src; + $f['resz']['fs'] = $src; + + //generate cachename + $md5 = md5($src); + + //check if it is an image + if(preg_match('#\.(jpe?g|gif|png)$#i',$src,$match)){ + $ext = strtolower($match[1]); + $isimg = true; + } + + //check if it is external or a local mediafile + if(preg_match('#^([a-z0-9]+?)://#i',$src)){ + $isurl = true; + }else{ + $src = str_replace(':','/',$src); + $f['full']['web'] = $conf['mediaweb'].'/'.$src; + $f['resz']['web'] = $conf['mediaweb'].'/'.$src; + $f['full']['fs'] = $conf['mediadir'].'/'.$src; + $f['resz']['fs'] = $conf['mediadir'].'/'.$src; + } + + //download external images if allowed + if($isurl && $isimg && !$nocache){ + $cache = $conf['mediadir']."/.cache/$md5.$ext"; + if (@file_exists($cache) || download($src,$cache)){ + $f['full']['web'] = $conf['mediaweb']."/.cache/$md5.$ext"; + $f['resz']['web'] = $conf['mediaweb']."/.cache/$md5.$ext"; + $f['full']['fs'] = $conf['mediadir']."/.cache/$md5.$ext"; + $f['resz']['fs'] = $conf['mediadir']."/.cache/$md5.$ext"; + $isurl = false; + } + } + + //for local images (cached or media) do resizing + if($isimg && (!$isurl) && $w){ + $info = getImageSize($f['full']['fs']); + //if $h not given calcualte it with correct aspect ratio + if(!$h){ + $h = round(($w * $info[1]) / $info[0]); + } + $cache = $conf['mediadir'].'/.cache/'.$md5.'.'.$w.'x'.$h.'.'.$ext; + //delete outdated cachefile + if(@file_exists($cache) && (filemtime($cache)<filemtime($f['full']['fs']))){ + unlink($cache); + } + //check if a resized cachecopy exists else create one + if(@file_exists($cache) || img_resize($ext,$f['full']['fs'],$info[0],$info[1],$cache,$w,$h)){ + $f['resz']['web'] = $conf['mediaweb'].'/.cache/'.$md5.'.'.$w.'x'.$h.'.'.$ext; + $f['resz']['fs'] = $conf['mediadir'].'/.cache/'.$md5.'.'.$w.'x'.$h.'.'.$ext; + } + }elseif($isimg && (!$isurl)){ + //if no new size was given just return the img size + $info = getImageSize($f['full']['fs']); + $w = $info[0]; + $h = $info[1]; + } + + //set srcs + $src = $f['full']['web']; + $csrc = $f['resz']['web']; + return $isimg; +} + +function img_resize($ext,$from,$from_w,$from_h,$to,$to_w,$to_h){ + // create cachedir + io_makeFileDir($to); + + // create an image of the given filetype + if ($ext == 'jpg' || $ext == 'jpeg'){ + if(!function_exists("imagecreatefromjpeg")) return false; + $image = @imagecreateFromjpeg($from); + }elseif($ext == 'png') { + if(!function_exists("imagecreatefrompng")) return false; + $image = @imagecreatefrompng($from); + }elseif($ext == 'gif') { + if(!function_exists("imagecreatefromgif")) return false; + $image = @imagecreatefromgif($from); + } + if(!$image) return false; + + if(function_exists("imagecreatetruecolor")){ + $newimg = @imagecreatetruecolor ($to_w, $to_h); + } + if(!$newimg) $newimg = @imagecreate($to_w, $to_h); + if(!$newimg) return false; + + //try resampling first + if(function_exists("imagecopyresampled")){ + if(!@imagecopyresampled($newimg, $image, 0, 0, 0, 0, $to_w, $to_h, $from_w, $from_h)) { + imagecopyresized($newimg, $image, 0, 0, 0, 0, $to_w, $to_h, $from_w, $from_h); + } + }else{ + imagecopyresized($newimg, $image, 0, 0, 0, 0, $to_w, $to_h, $from_w, $from_h); + } + + if ($ext == 'jpg' || $ext == 'jpeg'){ + if(!function_exists("imagejpeg")) return false; + return imagejpeg($newimg, $to, 70); + }elseif($ext == 'png') { + if(!function_exists("imagepng")) return false; + return imagepng($newimg, $to); + }elseif($ext == 'gif') { + if(!function_exists("imagegif")) return false; + return imagegif($newimg, $to); + } + + return false; +} + +?> |