php script works elsewhere, not on x10

atomman · Jan 9, 2008

this script converts html to an rss/xml feed. it looks for special html tags (<span class="rss:item"></span>)to do so.

it works fine everywhere else, but does not work on x10. the developer cannot be reached and i can't find another script like it.

there are no errors returned.

script: http://0daynews.org/rss/rssgenr8.php
test page: rsstest.html (located in public_html)

can anyone offer any advice?

Code:

<?php
if ($pageurl) {
  parse_html($pageurl);
} else {
  show_form();
}

function show_form() {
  $server = getenv("SERVER_NAME");
  $request = getenv("REQUEST_URI");
?>
<html>

<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>RSSgenr8: HTML to RSS Converter - Generate an RSS feed from a web page</title>
<meta name="description" content="RSSgenr8 is a hosted HTML to RSS Scraper Tool which generates a RSS feed from a HTML web page">
</head>

<body>
<p>&nbsp;</p>
   <ol>
   <li>Put &lt;span class="rss:item"> ... &lt;/span> round each item in your page.
   <br />In Blogger you'd do this by going to your template in blogger and changing 
<br /><b>&lt;$BlogItemBody$></b> to <b>&lt;span class="rss:item">&lt;$BlogItemBody$>&lt;/span></b>
<br />And then publish something to re-create the page with the new template 
<li>Then put the URL of your new and modified page into the form below.
<li>Check that what you get back looks like RSS.
<li>Now you can make a link to this file like &quot;http://www.xmlhub.com/rssgenr8.php?pageurl=your_web_page_url"
<li>Finally add a link to it on your web page, using something like the XML image below.
<li>(As a condition of use, we ask you to show a visible HTML link to www.xmlhub.com on your site.)
</ol>
<form action="<? print 'http://' . $server . $request; ?>">
  <input type="text" name="pageurl" size=50> 
  <input type="submit" value="Create RSS">
  Include a final "/" or a filename.
     </form>
   <b>Usage</b>: http://www.xmlhub.com/rssgenr8.php?pageurl=your_web_page_url
<p><B>Notes:</B>
<ul>
   <li>The channel title is taken from the web page title.
   <li>The channel description is taken from the meta description.
   <li>The item text is put in the description element.
   <li>The first line or the first 100 characters of html stripped description are put in the title element.
   <li>The first link in the description is put in the link element. If there isn't one, the web page url is used.
   <li>Relative paths in the link url are converted to absolute paths.
   <li>All tags except &lt;A> &lt;B> &lt;BR> &lt;BLOCKQUOTE> &lt;CENTER> &lt;DD> &lt;DL> &lt;DT> &lt;HR> &lt;I> &lt;IMG> &lt;LI> &lt;OL> &lt;P> &lt;PRE> &lt;U> &lt;UL> are stripped from the description.
   <li>Tabs, NewLines, etc, in the description are converted to a single space
   <li>A maximum of 25 items are included in the rss.
   <li>if you want more detail about RSS, take a look at the
   <a href="http://www.xmlhub.com/rssfaqs.htm">FAQs</a>.</ul>
</body>
</html>   
<?  
}

function parse_html($pageurl){
  $itemregexp = "%rss:item *\" *>(.+?)</span>%is";
  $allowable_tags = "<A><B><br /><br><BLOCKQUOTE><CENTER><DD><DL><DT><HR><I><IMG><LI>&nbsp;<OL><P><PRE><U><UL>";

  $pageurlparts = parse_url($pageurl);
  if ($pageurlparts[path] == "") $pageurl .= "/";

  if ($fp = @fopen($pageurl, "r")) {
    while (!feof($fp)) {
      $data .= fgets($fp, 128);
    }
    fclose($fp);
  }

//  print "<pre>";
//  print htmlentities($data);  

//  eregi("<title>(.*)</title>", $data, $title);
//  $channel_title = $title[1];

  $channel_title = "";
  if (preg_match('/<title>(.+?)<\/title>/i', $data, $regs) > 0) { $channel_title = $regs[1];
  }

  
  if (preg_match('/<meta .*description.*"(.+?)"/i', $data, $regs) > 0) { $channel_desc = $regs[1];
  }
  if ($channel_desc == "") $channel_desc = $pageurl;

  $match_count = preg_match_all($itemregexp, $data, $items);
  $match_count = ($match_count > 25) ? 25 : $match_count;
  
  header("Content-Type: text/xml");

  $output .= "<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>\n";
  $output .= "<!-- generator=\"rssgenr8/0.92\" -->\n";
  $output .= "<!DOCTYPE rss PUBLIC \"-//W3C//ENTITIES Latin 1 for XHTML//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml-lat1.ent\">\n";
  $output .= "<rss version=\"0.92\">\n";
  $output .= "  <channel>\n";
  $output .= "    <title>". htmlentities(strip_tags($channel_title)) ."</title>\n";
  $output .= "    <link>". htmlentities($pageurl) ."</link>\n";
  $output .= "    <description>". htmlentities($channel_desc) ."</description>\n";
  $output .= "    <webMaster>". htmlentities("webmaster") ."</webMaster>\n";
  $output .= "    <generator>". htmlentities("RSSgenr8 from XMLhub.com") ."</generator>\n";
  $output .= "    <language>en</language>\n";

  for ($i=0; $i< $match_count; $i++) {

    $desc = $items[1][$i];
    $title = wsstrip($desc);
    $descout = $desc;
    

      if (preg_match("/(.+?)(?:<\/P|<\/div|<br|<\/h|<\/td)/i", $title, $regs) > 0) { 
        $title = $regs[1];
        if (strlen(wsstrip(trim(strip_tags($title)))) < 100) {
          $descout = str_replace($title,"",$descout);
        }
      }
    
    $title = wsstrip(trim(strip_tags($title)));
    if (strlen($title) > 100) {
      $title = substr($title,0,100) . " ...";
    }


    
    $item_url = get_link($desc, $pageurl);
    $descout = wsstrip(strip_tags($descout, $allowable_tags));
      $pos = strpos($descout, "<br>");
      if (is_int($pos) and ($pos == 0)) {
        $descout=substr($descout, 4);
      }  
      $pos = strpos($descout, "<br />");
      if (is_int($pos) and ($pos == 0)) {
        $descout=substr($descout, 6);
      }

    $descout = htmlentities(wsstrip($descout));

    $output .= "    <item>\n";
    $output .= "      <title>". htmlentities($title) ."</title>\n";
    $output .= "      <link>". htmlentities($item_url) ."</link>\n";
    $output .= "      <description>". $descout ."</description>\n";
    $output .= "    </item>\n";
  }

  $output .= "  </channel>\n";
  $output .= "</rss>\n";

  print $output;
//  print htmlentities($output);
//  print "</pre>"; 
}

function get_link($desc, $pageurl) {
  if (stristr($desc, "href")) {
    $linkurl = stristr($desc, "href");
    $linkurl = substr($linkurl, strpos($linkurl, "\"")+1);
    $linkurl = substr($linkurl, 0, strpos($linkurl, "\""));
    $linkurl = trim($linkurl);
    $pageurlarray = parse_url($linkurl);
    if (empty($pageurlarray['host'])) {
      $linkurl = make_abs($linkurl, $pageurl);
    }
    return $linkurl;
  } else {
    return $pageurl;
  }
}

function wsstrip($str)
{
 $str=ereg_replace("[\r\t\n]"," ",$str);
 $str=ereg_replace (' +', ' ', trim($str));
return $str;
}

 
function make_abs($rel_uri, $base, $REMOVE_LEADING_DOTS = true) { 
 preg_match("'^([^:]+://[^/]+)/'", $base, $m); 
 $base_start = $m[1]; 
 if (preg_match("'^/'", $rel_uri)) { 
  return $base_start . $rel_uri; 
 } 
 $base = preg_replace("{[^/]+$}", '', $base); 
 $base .= $rel_uri; 
 $base = preg_replace("{^[^:]+://[^/]+}", '', $base); 
 $base_array = explode('/', $base); 
 if (count($base_array) and!strlen($base_array[0])) 
  array_shift($base_array); 
 $i = 1; 
 while ($i < count($base_array)) { 
  if ($base_array[$i - 1] == ".") { 
   array_splice($base_array, $i - 1, 1); 
   if ($i > 1) $i--; 
  } elseif ($base_array[$i] == ".." and $base_array[$i - 1]!= "..") { 
   array_splice($base_array, $i - 1, 2); 
   if ($i > 1) { 
$i--; 
if ($i == count($base_array)) array_push($base_array, ""); 
   } 
  } else { 
   $i++; 
  } 
 } 
 if (count($base_array) and $base_array[-1] == ".") 
  $base_array[-1] = ""; 

 if ($REMOVE_LEADING_DOTS) { 
  while (count($base_array) and preg_match("/^\.\.?$/", $base_array[0])) { 
   array_shift($base_array); 
  } 
 } 
 return($base_start . '/' . implode("/", $base_array)); 
}

?>

bigjoe4 · Jan 9, 2008

maybe you need php3 to use that script but have only php2 or need php2 but have only php1. If you do you will need to request an upgrade from x10.

kajasweb · Jan 10, 2008

You didn't get the value for $pageurl before checking it with if statement. Check it out.

atomman · Jan 10, 2008

kajasweb said:
You didn't get the value for $pageurl before checking it with if statement. Check it out.

what do i need to do to fix it?

what has me stumped is that the script runs fine everywhere but x10.

flinx · Jan 10, 2008

One of these two lines should work. Try them to see which one does the trick. You must put them before the 'if'.

$pageurl = $_POST['pageurl'];

or

$pageurl = $_GET['pageurl'];

The reason it worked on other hosts (not every host, maybe every host you've had) is that probably those hosts had register_globals set to on, while the recommended value is off (for security reasons).

bonzo meier · Jan 10, 2008

atomman said:

Code:

<form action="<? print 'http://' . $server . $request; ?>">
  <input type="text" name="pageurl" size=50> 
  <input type="submit" value="Create RSS">
  Include a final "/" or a filename.
     </form>

hi,

I suggest to first add an method="post" to the form tag and then define the $pageurl variable as $pageurl=$_POST['pageurl']; on top of the script before doing the if($pageurl)... thing.

why this script ever worked as it is, I can´t figure out...

peace, bonzo
Edit:
"why this script ever worked as it is, I can´t figure out..."

well, flinx could, as i see. i think he's right

atomman · Jan 10, 2008

wow, thanks!
the GET request worked. and yes, register globals was very likely 'on' on the other servers (glad to see it off here).

php script works elsewhere, not on x10

atomman

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bigjoe4

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