diff options
Diffstat (limited to 'banner.class')
| -rw-r--r-- | banner.class | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/banner.class b/banner.class new file mode 100644 index 0000000..9b876e3 --- /dev/null +++ b/banner.class @@ -0,0 +1,274 @@ +<?php + +/* + * $Id$ + * + */ + +class it_banner +{ + +function it_banner($p = array()) +{ + $this->p = (array)$p + array( + 'server' => "http://localhost/", + 'serverbase' => "http://localhost/getbanner.html", + 'host' => $_SERVER['HTTP_HOST'], + 'uri' => str_replace('/doc_static', '', $_SERVER['PHP_SELF']), + 'place' => "", + 'language' => "", + 'keyword' => "", + 'category' => "", + 'region' => "", + 'vars' => array(), + 'ip' => $_SERVER['REMOTE_ADDR'], + 'uid' => $_COOKIE['UID'], + 'bgcolor' => "", + 'width' => "", + 'height' => "", + 'mx1' => "", + 'mx2' => "", + 'my1' => "", + 'my2' => "", + 'z' => "", + 'target' => "_top", + 'timeout' => 5, + 'uidcookie' => 'crustulum', + 'enablephpbanners' => false, + 'addextraline' => "", + 'bannerid' => $_REQUEST["bannerid"], + 'exclude' => $_REQUEST["exclude"], + ); + + $this->p += array('loc' => $this->p['region']); # Historical name +} + +function choose() +{ + if ($GLOBALS['debug_noads']) + return; + + $host = 'localhost'; + $port = 80; + $url = '/'; + + if (eregi('^[a-z]+://([^:/]+):([0-9]+)(.*)', $this->p['serverbase'], $regs)) + { + $host = $regs[1]; + $port = $regs[2]; + $url = $regs[3]; + } + else if (eregi('^[a-z]+://([^:/]+)(.*)', $this->p['serverbase'], $regs)) + { + $host = $regs[1]; + $port = 80; + $url = $regs[2]; + } + + if ($url == '') + $url = '/'; + + $params = array(); + + foreach (array('host', 'uri', 'place', 'language', 'keyword', 'category', 'loc', 'mx1', 'mx2', 'my1', 'my2', 'z', 'ip', 'uid', 'bgcolor', 'bannerid', 'exclude') as $key) + $params[$key] = $this->p[$key]; + + $request .= it_html::U($url, $params); + if ($GLOBALS['debug_adreq']) # can't use EDC since itools sometimes not included + ED("http://$host$request"); + + if ($fp = @fsockopen($host, $port, $errno, $errstr, $this->p['timeout'])) + { + if ($this->p['uid']) + $cookie = "Cookie: " . $this->p['uidcookie'] . "=" . urlencode($this->p['uid']) . "\r\n"; + else + $cookie = ''; + + fputs($fp, "GET $request HTTP/1.0\r\nHost: $host\r\n$cookie\r\n"); + + $b = array(); + + while (!feof($fp)) + { + $line = fgets($fp, 10240); + + if (!trim($line)) + $emptylines++; + + if ($emptylines == 0) + ; + else if (ereg("^data (.*)$", $line, $r)) + { + $len = (int)$r[1]; + $b['data'] = ''; + + while (!feof($fp) && (strlen($b['data']) < $len)) + $b['data'] .= fread($fp, $len - strlen($b['data'])); + + if (strlen($b['data']) < $len) + $b['data'] = ''; # Skip banners which got corrupted during transmission, very rare + } + else if (ereg("^([^ ]*) (.*)\n$", $line, $r)) + { + $b[$r[1]] = $r[2]; + } + else if (ereg("^</banner>", $line)) + { + # Doubleclick artificially delays banners for Mozilla/Linux so we do not show them to linux users + if (!(eregi('linux', $_SERVER['HTTP_USER_AGENT']) && eregi('\.doubleclick\.net', $b['data']))) + { + $this->bannersbyposition[$b['position'] ? $b['position'] : 'banner'] = $b; + $this->banners[] = $b; + } + + $b = array(); + } + } + + if ($GLOBALS['debug_adreq']) # can't use EDC since itools sometimes not included + ED($this->banners); + } + + srand((double)microtime()*1000000); + $this->rand = rand(); + $this->chosen = true; +} + +/** + * Show one or all banners for this banner position + * @param $nocount Switch off impression counting of true for multiple display + * @param $noecho Switch off automatic display of HTML snipplet with echo + * @return HTML snipplet to insert banner(s) if $noecho is set, undefined otherwise + */ +function show($nocount = false, $noecho = false) +{ + if (!$this->chosen) + $this->choose(); + + if (!is_array($this->banners)) + return; // none found or choose() not called yet + + $count = count($this->banners); + $number = 0; + + if ($noecho) + ob_start(); + + foreach ($this->banners as $banner) + { + $result .= $this->render($banner, $count, $number, $nocount); + $number++; + } + + if ($noecho) + { + $result = ob_get_contents(); + ob_end_clean(); + } + + return $result; +} + +/** + * Returns html code for a banner from a multi banner request + * @param $position Which position to return, e.g. 'feature' + * @param $nocount Suppress counting of this banner + */ +function showcombined($position = "banner", $nocount = false) +{ + ob_start(); + if ($this->bannersbyposition[$position]) + $this->render($this->bannersbyposition[$position], 1, 0, $nocount); + $result = ob_get_contents(); + ob_end_clean(); + + return $result; +} + +/** + * Renders a banner, to be overloaded e.g. to render sponsor banners in a table + * @param $banner Opaque structure representing the banner + * @param $count Total number of banners, also number of times this method gets called + * @param $position Current banner number, from 0 to $count - 1 + */ +function render($banner, $count, $number, $nocount = false) +{ + if ($number > 0) + echo "<br /><br />"; + + $this->render_banner($banner, $nocount); +} + +/** + * Render one banner + * @param $banner Opaque banner structure to be rendered + */ +function render_banner($banner, $nocount = false) +{ + if ($banner['width'] <= 0) + $banner['width'] = 468; + if ($banner['height'] <= 0) + $banner['height'] = 60; + if ($this->p['width']) + $banner['width'] = $this->p['width']; + if ($this->p['height']) + $banner['height'] = $this->p['height']; + + $l = it::replace("/" => "_", rtrim($banner['locationid'] . "|" . $banner['matchingkeyword'] . "|" . $banner['matchingcategory'] . "|" . $banner['matchingregion'] . "|" . $banner['language'], "|")); + + $pathinfo = "/c=" . $banner['campaignid'] . ":" . urlencode($banner['campaignname']) . "/b=" . $banner['bannerid'] . ":" . urlencode($banner['bannername']) . "/l=" . urlencode($l); + $nocountinfo = $nocount ? "/nocount=1" : ""; + $keyword = it::replace('<country_[^>]*>' => "", '\]\[' => " ", '^\[ +' => "", ' +\]$' => "", $this->p['keyword']); + $viewpre = $this->p['server'] . "view.html$pathinfo$nocountinfo/img="; + $clickpre = $this->p['server'] . "click.html$pathinfo/url="; + + $vars = array( + 'viewpre' => $viewpre, + 'clickpre' => $clickpre, + 'clickpreenc' => urlencode($clickpre), + 'auditurl' => $viewpre . "empty.gif", + 'keyword' => $keyword, + 'keywordhtml' => substr($keyword, 0, 30), + 'keywordurl' => urlencode($keyword), + 'viewurl' => $viewpre . $banner['path'], + 'clickurl' => $clickpre . $banner['url'], + 'rand' => $this->rand, + ) + $this->p['vars']; + + foreach (array('alttext', 'extraline', 'path', 'url', 'data') as $field) + { + while ($var = it::match("__([a-z]+)__", $banner[$field])) + $banner[$field] = str_replace("__{$var}__", htmlspecialchars($vars[strtolower($var)]), $banner[$field]); + } + + switch ($banner['type']) + { + case 0: + if($banner['url'] != 'http://') + { + $linkstart = "<a href=\"" . htmlspecialchars($vars['clickurl']) ."\" target=\"" . htmlspecialchars($this->p['target']) . "\">"; + $linkend = "</a>"; + } + + echo "$linkstart<img src=\"" . htmlspecialchars($vars['viewurl']) . "\" alt=\"" . $banner['alttext'] . "\" width=\"" . $banner['width'] . "\" height=\"" . $banner['height'] . "\" border=\"0\" />$linkend"; + + if (strlen($banner['extraline']) > 0) + echo "<br />$linkstart" . $banner['extraline'] . $linkend; + + if (strlen($banner['extraline']) == 0 && $this->p['addextraline']) + echo "<br /> "; + break; + + case 1: + echo $banner['data']; + break; + + case 2: + if ($this->p['enablephpbanners']) + eval("?>" . $banner['data']); + break; + } +} + +} +?> |