Command line PHP script to download all photos in a gallery

I needed a script that would download my most recent photos on a semi-regular basis to a folder on my home theater PC. The HTPC uses this folder for its screen saver.

I wrote a script that lets you download pictures by pasting the RSS feed as a command line parameter, but then I decided to expand on it a bit. You can now specify a gallery URL on the command line *or* with no command line parameters, it'll prompt you for a gallery URL, RSS feed, then the size of the photos you want.

I'm not a coder by profession so this is pretty messy, but it works. It probably could have been done much easier with the smugmug API instead of RSS, but alas...

[PHP]<?php

// getimages.php v1.21
//
// (c)2011 Kris Linquist kris@linquist.net
// Script downloads pictures from smugmug
//
// To be run from the command line. PHP & cURL extension required
// Usage:
//
// php getimages.php "[smugmug rss2.0 feed url]" [Destination with trailing slash [optional]]
//
// -or-
//
// php getimages.php "[gallery URL]" [Destination with trailing slash [optional]]
//
// -or-
//
// php getimages.php
// You will be prompted for URL/galleryID & size of images to download. If you just paste the gallery URL on the command line, I will use this default size:
// [must be Small/Medium/Large/XLarge/X2Large/X3Large/Original, case sensitive]:
$defaultsize = "Original";
//
//
//
// Example for the "recent photos" feed:
// php getimages.php "http://www.smugmug.com/hack/feed.mg?Type=nicknameRecentPhotos&Data=williams&format=rss200&Size=X2Large&quot; ./
//
//
// Smugmug feeds help:
// http://help.smugmug.com/customer/portal/articles/84258
//


function downloadfiles($url, $filename) {
global $argv;
$bd = curl_init();
curl_setopt($bd, CURLOPT_URL, $url);
$filename = $argv[2] . $filename;

if (file_exists($filename)) {
echo "$filename already exists, skipping\n\n";
} else {
echo"downloading $url and writing it to $filename\n\n";
$fp = fopen($filename, "w+");
curl_setopt($bd, CURLOPT_BINARYTRANSFER,1);
curl_setopt($bd, CURLOPT_HEADER, 0);
curl_setopt($bd, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($bd, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($bd, CURLOPT_FILE, $fp);
curl_exec($bd);
curl_close ($bd);
fclose($fp);
}

}




function parseRSS($xml) {
echo "RSS Feed name: ".$xml->channel->title."\n\n";
$cnt = count($xml->channel->item);
for($i=0; $i<$cnt; $i++) {
$url = $xml->channel->item[$i]->link;
$title = $xml->channel->item[$i]->title;
$desc = $xml->channel->item[$i]->description;
$pattern = "/img src=\"(http:\/\/.+?\.jpg)/";
preg_match($pattern, $desc, $matches);
$match = substr($matches[0],9);
$lastslash = strrpos($matches[0], "/") +1;
$thefile = substr($matches[0], $lastslash);
downloadfiles($match, $thefile);
}


}


function getIDfromURL($url) {


$underscore = strpos($url, "_");
$probably = substr($url, $underscore-8, 15);
// if ID is 14 digits, remove the first slash.. v1.2 correction
if (strpos($probably,"/") === FALSE) { } else { $probably = substr($probably, strpos($probably, "/")+1, 15); }

echo"Found gallery ID: $probably\n\n";

return $probably;
}



//Check and see if there is a command line argument
if ($argv[1] == "") {
echo"\n\nDownload pictures from smugmug\n©2011 Kris Linquist kris@linquist.net\n usage: php getimages.php \"[smugmug rss2.0 feed OR regular gallery url]\" [Destination]\n\nExample: php getimages.php \"http://photos.linquist.net/hack/feed.mg?Type=nicknameRecentPhotos&Data=williams&format=rss200&Size=X2Large\&quot; pictures/\n\n";



while ($galleryID == "") {
fwrite(STDOUT, "Enter a smugmug 14/15-character galleryID & key combination [example: 14422772_HpR9FH] OR paste the full URL from someone's gallery and I'll try to extract it OR press Ctrl-C to exit:\n");

$IDInput = trim(fgets(STDIN));

if (strlen($IDInput) < 16 && strpos($IDInput, "_") == TRUE) { $galleryID = $IDInput; break; }

if (substr($IDInput,0,4) == "http") {

$galleryID = getIDfromURL($IDInput);

}
}



while (!isset($correctedsize)) {
fwrite(STDOUT, "Enter a size to download [S/M/L/X/2/3/O] (default = $defaultsize): ");
$size = strtoupper(trim(fgets(STDIN)));
switch ($size) {
case "S":
$correctedsize = "Small";
break;
case "M":
$correctedsize = "Medium";
break;
case "L":
$correctedsize = "Large";
break;
case "X":
$correctedsize = "XLarge";
break;
case "2":
$correctedsize = "X2Large";
break;
case "3":
$correctedsize = "X3Large";
break;
case "O";
$correctedsize = "Original";
break;
case "";
$correctedsize = $defaultsize;
break;
default:
echo"Incorrect size input\n\n";

}
}

$feedurl = "http://www.smugmug.com/hack/feed.mg?Type=gallery&Data=&quot; . $galleryID . "&format=rss200&Size=" . $correctedsize . "&ImageCount=999&Paging=0";
$ch = curl_init($feedurl);
echo "feed url $feedurl\n\n";


} else {


if (substr($argv[1],0,4) != "http") {
die("Invalid feed URL! Feed must be in quotes and begin with http://\n\n");
}


if (strpos($argv[1], "feed.mg") == TRUE) {
$ch = curl_init($argv[1]);
} else {
$galleryID = getIDfromURL($argv[1]);
$feedurl = "http://www.smugmug.com/hack/feed.mg?Type=gallery&Data=&quot; . $galleryID . "&format=rss200&Size=" . $defaultsize . "&ImageCount=999&Paging=0";
$ch = curl_init($feedurl);

}




}

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, 0);
$data = curl_exec($ch);
curl_close($ch);
$doc = new SimpleXmlElement($data, LIBXML_NOCDATA);
parseRSS($doc);





?>
[/PHP]