
<?php
include_once("inc_apikey"); //format - $api_key = "key";
$base = "http://www.flickr.com/services/rest/?api_key=$api_key&";

$size = $_REQUEST["picsize"];
$string = $_REQUEST["string"];
$nsid = $_REQUEST["nsid"];

$string = preg_replace("/[^A-Za-z0-9 \?\.!\-,&\*]/", "", $string);
if (!preg_match("/^[st]$/", $size)) 
    $size = "s";
/* Functions to parse xml - not ideal */
/* Function to handle <(HERE)>.</tag> */
function startTag($parser, $name, $attrs) {
    global $tags, $doc;
    $name = strtolower($name);
    if ($name == "rsp") {
        $doc = "";
        $tags = Array();
    }
    array_push($tags, $name);
    $attrs = array_change_key_case($attrs);
    $tt = join("\"][\"", $tags);
    eval("\$doc[\"$tt\"][]=\$attrs;");
}
/* Function to handle <tag>.</(HERE)> */
function endTag($parser, $name) {
    global $tags;
    array_pop($tags);
}
/* Function to handle <tag>(HERE)</tag> */
function cdata($parser, $cdata) {
    global $tags, $doc;
    $tt = join("\"][\"", $tags);
    if (trim($cdata))
        eval("\$doc[\"$tt\"][count(\$doc[\"$tt\"])-1]['cdata']=\$cdata;");
}
/* / xml */

/* Send headers */
$date = gmdate("D, d M Y H:i:s");
header("Content-type: text/xml");
header("Last-Modified: $date GMT");
echo <<<HTML
<?xml version="1.0" encoding="UTF-8"?>
<!-- generator="spellwithflickr/kastner" --><rss xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:media="http://search.yahoo.com/mrss" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0">

<channel>
    <title>Spell with Flickr -- $string</title>
    <link>http://metaatem.net/words/$string</link>
    <description>Spell with Flickr - fun with letters</description>
    <pubDate>$date +0000</pubDate>
    <generator>http://metaatem.net/words/</generator>

    <language>en</language>
    <copyright>(C) 2006 Kastner @ metaatem.net, Images (c) their owners</copyright>
HTML;

foreach (preg_split("//", strtolower(preg_replace("/\/words\//", "", $string))) as $letter) {
    $img = "";
    if (strlen($letter) == 1) {     // if ($letter) fails on "0"
        $id_spot++;
        $group_id = "";
        switch ($letter) {
            case "a":
                $tag = "aa";
                $group_id='27034531@N00';           // Letter group
                break;
            case "i":
                $tag = "ii";
                $group_id='27034531@N00';           // Letter Group
                break;
            case (preg_match("/[b-z]/", $letter) ? $letter: !$letter):
                $tag = $letter;
                $group_id='27034531@N00';           // Letter Group
                break;
            case "?":
                $tag = "Question Mark";
                $tag = "questionmark";              // Not sure which to use
                $group_id='34231816@N00';           // Puncuation group
                break;
            case "+":
                $tag = "plus";
                $group_id='34231816@N00';           // Puncuation group
                break;
            case "&":
                $tag = "ampersand";
                $group_id='34231816@N00';           // Puncuation group
                break;
            case "!":
                $tag = "exclamation";
                $group_id='34231816@N00';           // Puncuation group
                break;
            case ".":
                $tag = "period";
                $group_id='34231816@N00';           // Puncuation group
                break;
            case "0":
                $tag = "00";
                $group_id='54718308@N00';           // Number Group
                break;
            case (preg_match("/[1-9]/", $letter) ? $letter : !$letter):
                $tag = $letter;
                $group_id='54718308@N00';           // Number Group
                break;
            default:
                $group_id = "";
                break;
        }
        if ($group_id) {
            if (!$letters[$tag]) {

                $method = "flickr.groups.pools.getPhotos";
                $limit = "&per_page=100";
                $extra = "&group_id=$group_id";
                $extra .= "&tags=$tag";

                $method = "method=$method";

                $tags = Array();
                /* Check the filesystem first - rudimentary caching */
                $get_new = 1;
                $cache_name = "./cache/{$method}_" . str_replace("@", "-", $group_id) . "_{$tag}.xml";
                $cache_name = str_replace("..", "", $cache_name);
                $cache_name = preg_replace("/;\@\*/", "", $cache_name);
                if (file_exists($cache_name)) {
                    if (time() - (filemtime($cache_name)) <= (8 * (60 * 60))) {         //hours to cache for
                        $xml_conts = file_get_contents($cache_name);
                        $get_new = 0;
                    }
                }
                /* request the xml */
                if ($get_new) {
                    #echo "SKIPPED CACHE!!! - $letter<br />";    #hopefuly to figure out why I slammed the api :/
                    $fi = fopen("cache-misses.txt", "a") or die("can't pen cache-misses.txt");
                    fwrite($fi, "JS Cache miss at " . date("D M j G:i:s T Y") . " with letter $letter and string $string\n");
                    fclose($fi);
                    $xml_conts = file_get_contents("$base$method$limit$email$extra");
                    if (preg_match("/stat=\"fail/", $xml_conts) || strlen($xml_conts) == 0) {
                        $fi = fopen("cache-misses.txt", "a") or die("can't pen cache-misses.txt");
                        fwrite($fi, "    JS PROBLEM-+-+ Failure\n");
                        fclose($fi);
                        continue;
                    }
                    else {
                        $hand = fopen($cache_name, 'w');
                        fwrite($hand, $xml_conts);
                        fclose($hand);
                    }
                }

                /* for some reason, I must re-initialze each time :( */
                $xml_parser = xml_parser_create();
                xml_set_element_handler($xml_parser, "startTag", "endTag");
                xml_set_character_data_handler($xml_parser, "cdata");
                xml_parse($xml_parser, $xml_conts, true) or die(sprintf("XML error: %s at line %d\n\n%s", xml_error_string(xml_get_error_code($xml_parser)), xml_get_current_line_number($xml_parser), $xml_conts));
                xml_parser_free($xml_parser);
                /* done parsing xml */
                $letters[$tag] = $doc;      //Cache letters
            }

            if ($letters[$tag]["rsp"][0]["stat"] == "ok") {
                $photo = "";
                $i = 0;
                /* make sure we fill it with something, this was for an early bug, it might not be an issue any longer */
                while (!$photo["id"] and $i++<10) {
                    $photo = $letters[$tag]["rsp"]["photos"]["photo"][rand(1,count($letters[$tag]["rsp"]["photos"]["photo"]))];
                }
                $title = addslashes($photo["title"]);
                $link = "http://www.flickr.com/photos/$photo[owner]/$photo[id]";
                $image = "http://static.flickr.com/$photo[server]/$photo[id]_$photo[secret]_$size.jpg";
                $height = $photo["height"];
                $width = $photo["width"];
                $height = 75;
                $width = 75;
                #document.write('<a href="http://www.flickr.com/photos/$photo[owner]/$photo[id]/"><img src="http://photos$photo[server].flickr.com/$photo[id]_$photo[secret]_$size.jpg" class="flickrImg" title="$title"></a>');
                echo <<<HTML
        <item>
            <title>$title</title>
            <link>$link</link>
            <description>&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/$photo[owner]/&quot;&gt;$photo[ownername]&lt;/a&gt; posted a photo:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;$link&quot; title=&quot;$title&quot;&gt;&lt;img src=&quot;$image&quot; width=&quot;$width&quot; height=&quot;$height&quot; alt=&quot;$title&quot; style=&quot;border: 1px solid #ddd;&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

</description>
            <author>nobody@flickr.com ($photo[ownername])</author>
            <guid isPermaLink="false">tag:flickr.com,2004:/photo/$photo[id]</guid>
            <media:content url="$image"
                       type="image/jpeg"
                       height="$height"
                       width="$width"/>
            <media:title>$title</media:title>
            <media:text type="html">&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/$photo[owner]/&quot;&gt;$photo[ownername]&lt;/a&gt; posted a photo:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;$link&quot; title=&quot;$title&quot;&gt;&lt;img src=&quot;$image&quot; width=&quot;$width&quot; height=&quot;$height&quot; alt=&quot;$title&quot; style=&quot;border: 1px solid #ddd;&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

</media:text>
            <media:thumbnail url="$image" height="75" width="75" />
            <media:credit role="photographer">$photo[ownername]</media:credit>

        </item>
HTML;

            }
            else {
                #echo "Error - {$letters[$tag][rsp][err][0][code]}: {$letters[$tag][rsp][err][0][msg]}<br />";
            }
        }
    }
}
?>
</channel>
</rss>