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PHP CURL hack to display random image from keyword
Nimai
Registered Users Posts: 564 Major grins
Well, since throwing the gauntlet down over [thread=42580]here[/thread] didn't have much of an effect, I made a replacement for random.mg that is for keywords, not galleries.
For those of you with PHP on your servers, save this code as "randomkw.php":
UPDATE: New version caches the templatechange.mg output from SmugMug on your server, doubling performance!
Original non-caching version
So, the syntax is:
randomkw.php?homepage=xxx&size=yyy&i=zzz
homepage is your smugmug url, i.e. http://nimai.smugmug.com
size is the maximum X and Y dimensions, or S for Small, M for Medium, L for Large
i is just anything to uniquify the url
I hope this is useful to someone! Big thanks to Big Web Guy and DevBoBo for their trail-blazing.
For those of you with PHP on your servers, save this code as "randomkw.php":
UPDATE: New version caches the templatechange.mg output from SmugMug on your server, doubling performance!
<?php
ini_set('display_errors','1');
ini_set('display_startup_errors','1');
error_reporting(E_ALL & ~E_NOTICE);
$cachefile = 'randomkw.cache.html';
$cacheretention = 20; // in minutes
$smugmug = $_GET['homepage'];
$keyword = $_GET['keyword'];
$size = $_GET['size'];
$result = '';
$cacheexists = file_exists($cachefile);
$now = time();
$cachetime = filectime($cachefile);
$cacheage = ($now - $cachetime)/60;
if( $cacheexists && ($cacheage < $cacheretention) ) {
$f = fopen($cachefile,'r');
if( $f ) {
$result = fread( $f, filesize($cachefile) );
fclose( $f );
}
}
if( empty($result) ) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "$smugmug/homepage/templatechange.mg?origin=$smugmug%2Fkeyword%2F$keyword&TemplateID=8" );
curl_setopt($ch, CURLOPT_FAILONERROR, 1);
curl_setopt($ch, CURLOPT_COOKIEJAR, "curlcookies");
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);// allow redirects
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); // return into a variable
curl_setopt($ch, CURLOPT_TIMEOUT, 10); // times out after 11s
$result = curl_exec($ch); // run the whole process
curl_close($ch);
$f = fopen($cachefile,'w');
if( $f ) {
fwrite( $f, $result );
fclose( $f );
}
}
preg_match_all( '/imageID\[\d+\]\s*=\s*"(\d+)";/mx', $result, $imageid );
$index = rand(0,count($imageid[1])-1);
$id = $imageid[1][$index];
$src = "$smugmug/photos/$id-$size.jpg";
$ch = curl_init($src);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
$data = curl_exec($ch);
curl_close($ch);
header("Content-type: image/jpeg");
print( $data );
?>
Original non-caching version
<?php
ini_set('display_errors','1');
ini_set('display_startup_errors','1');
error_reporting(E_ALL & ~E_NOTICE);
$smugmug = $_GET['homepage'];
$keyword = $_GET['keyword'];
$size = $_GET['size'];
$ch = curl_init(); // initialize curl handle
curl_setopt($ch, CURLOPT_URL, "$smugmug/homepage/templatechange.mg?origin=$smugmug%2Fkeyword%2F$keyword&TemplateID=8" );
curl_setopt($ch, CURLOPT_FAILONERROR, 1);
curl_setopt($ch, CURLOPT_COOKIEJAR, "curlcookies");
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);// allow redirects
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); // return into a variable
curl_setopt($ch, CURLOPT_TIMEOUT, 10); // times out after 11s
$result = curl_exec($ch); // run the whole process
curl_close($ch);
preg_match_all( '/imageID\[\d+\]\s*=\s*"(\d+)";/mx', $result, $imageid );
$index = rand(0,count($imageid[1])-1);
$id = $imageid[1][$index];
$src = "$smugmug/photos/$id-$size.jpg";
$ch = curl_init($src);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
$data = curl_exec($ch);
curl_close($ch);
header("Content-type: image/jpeg");
print( $data );
?>
On your website, or bio box, etc. use the randomkw.php as the src for your img, for example:
<table width="100%"> <tr> <td width="33%" align="center" valign="middle"> <img src="http://bceboosterclub.org/randomkw.php?homepage=http://nimai.smugmug.com&keyword=WHS-cheerleading-2007&size=150x150&i=1" /></td> <td width="33%" align="center" valign="middle"> <img src="http://bceboosterclub.org/randomkw.php?homepage=http://nimai.smugmug.com&keyword=WHS-cheerleading-2007&size=150x150&i=2" /></td> <td width="33%" align="center" valign="middle"> <img src="http://bceboosterclub.org/randomkw.php?homepage=http://nimai.smugmug.com&keyword=WHS-cheerleading-2007&size=150x150&i=3" /></td> </tr> </table>This renders a table with three random images based on the set of keywords supplied. I had to add something to make each img src different, so I tacked on i=n, where n is a unique number. That way the browser doesn't just try to reuse the same picture since the URL is the same.
So, the syntax is:
randomkw.php?homepage=xxx&size=yyy&i=zzz
homepage is your smugmug url, i.e. http://nimai.smugmug.com
size is the maximum X and Y dimensions, or S for Small, M for Medium, L for Large
i is just anything to uniquify the url
I hope this is useful to someone! Big thanks to Big Web Guy and DevBoBo for their trail-blazing.
0
Comments
This looks great and just what I'm after but I can't get it to work for me. The URL I'm using is:
http://www.mgpages.co.uk/misc/randomkw.php?homepage=http://digitalnature.smugmug.com&keyword=portfolio&size=100x100&i=1
but as you can see it just shows me a page with the same URL in it. Not sure what I'm doing wrong - any ideas? (My web space supports php by the way).
Sorry- Looks like I had a copy/paste bug in there.
The slashes in the CURLOPT_URL are represented (escaped) as %2F, so keyword/portfolio should have turned into keyword%2Fportfolio. I was missing the F! And then, in my sample, I had an extra F as the first letter of my keyword, so it worked for my case!
How embarrasing. Thanks for reporting the problem. I'll fix the first post.
It uses a file called "randomkw.cache.html" which I needed to create and give the proper permissions to make it writeable.
Let me know if this works for you!
Thanks Nimai. I was still using the original version but this has now stopped working. I switched to the cached version but still no joy. Any chance of taking a look - I assume something has changed at SmugMug which has broken it. Is it to do with this?
Want faster uploading? Vote for FTP!