Initial commit

index.php

@@ -0,0 +1,114 @@
+<?php
+	// Functions
+	function dbg($text) {
+		//echo "$text\n";
+	}
+
+	function checkTag($tag) {
+		$tag = strtolower($tag);
+
+		// Check validity
+		$re = "/^[_a-z0-9 :]*$/"; 
+		preg_match($re, $tag, $matches);
+		if (!$matches)
+			die ("Meeeeeow!");
+
+		// Convert for file name
+		$tag = substr($tag, 0, 40);
+		$tag = str_replace(" ", "__", $tag);
+		$tag = str_replace(":", "__", $tag);
+		return $tag;
+	}
+?>
+<?php
+	header('Content-Type: application/rss+xml; charset=UTF-8');
+
+	//if (!isset($_GET['debug']))
+	//	die("Nyan~~");
+
+	// Configuration here
+	$refreshTime = 3600; // Update every hour
+	$postLimit   = 20;   // Max. 100
+	$dateFormat  = "D, d M Y H:i:s O";
+
+	// Generate some variables
+	if ($_GET['server'] == "danbooru")
+		$selectedServer = "danbooru";
+	else
+		$selectedServer = "konachan";
+
+	$tag      = $_GET['tag'];
+	$santag   = checkTag($tag);
+	$tempfile = "/tmp/konasub/$selectedServer/$santag.xml";
+	$selfUrl  = "https://shimatta.de/konasub/?tag=$tag";
+	dbg ("Tag: \"$tag\" ($santag, $tempfile)\n");
+	mkdir ("/tmp/konasub/$selectedServer");
+
+	// Configure server urls and meta data
+	$svr['konachan']['imgBase']     = "http://konachan.com/post/show/";
+	$svr['konachan']['url']         = 'http://konachan.com/post.xml?tags=' . urlencode($tag) . "&limit=$postLimit";
+	$svr['konachan']['title']       = "Konachan: " . htmlspecialchars($tag);
+	$svr['konachan']['description'] = "Images for " . htmlspecialchars($tag);
+	$svr['konachan']['link']        = "http://konachan.com/post?tags=" . urlencode($tag);
+	$svr['konachan']['re']          = "/<post.* author=\\\"(?'author'[^\\ ]*)\\\".* created_at=\\\"(?'created_at'[^\\ ]*)\\\".* id=\\\"(?'id'[^\\ ]*)\\\".* jpeg_url=\\\"(?'jpeg_url'[^\\ ]*)\\\".* tags=\\\"(?'tags'[^\\\"]*)\\\"" . " .*\\/>/";
+
+	dbg ("File mtime delta: " . (time() - filemtime($tempfile)) . " (of $refreshTime)");
+	if ((time() - filemtime($tempfile)) > $refreshTime) {
+		$cacheFile = fopen($tempfile, "w");
+		dbg (" -> Retrieving file...");
+		$data = file_get_contents($svr[$selectedServer]['url']);
+		fwrite($cacheFile, $data);
+		flush();
+	}
+	else {
+		$cacheFile = fopen($tempfile, "r");
+		dbg (" -> Loading cached file...");
+		$data = fread($cacheFile,filesize($tempfile));
+	}
+	fclose($cacheFile);
+
+	dbg("BEGIN XML:\n");
+
+	// RSS Header
+	// TODO: Maybe change pubDate to date of latest image
+	echo '<?xml version="1.0" encoding="UTF-8" ?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/">
+<channel>
+ <title>' . $svr[$selectedServer]['title'] . '</title>
+ <description><![CDATA[' . $svr[$selectedServer]['description'] . ']]></description>
+ <link>' . $svr[$selectedServer]['link'] . '</link>
+ <lastBuildDate>' . date($dateFormat, time()) . ' </lastBuildDate>
+ <pubDate>' . date($dateFormat, time()) . '</pubDate>
+ <ttl>' . $refreshTime . '</ttl>
+ <atom:link href="' . $selfUrl . '" rel="self" type="application/rss+xml" />
+';
+	$all = explode("\n", $data);
+	// <post.* id=\"(?'id'[^\ ]*)\".* jpeg_url=\"(?'jpeg_url'[^\ ]*)\" .*\/>
+	 
+	foreach ($all as $line) {
+		preg_match($svr[$selectedServer]['re'], $line, $matches);
+		if ($matches) {
+			dbg ($matches['id'] . ", " . date($dateFormat, intval($matches['created_at'])) . "@" . $matches['jpeg_url'] . "\n");
+			dbg ("    " . $matches['tags'] . "\n");
+			$imageLink = $svr[$selectedServer]['imgBase'] . intval($matches['id']);
+			echo '
+ <item>
+  <title>' . "$matches[id]: $matches[tags]" . '</title>
+  <description><![CDATA[<a href="' . $imageLink . '"><img src="' . $matches['jpeg_url']. '" style="width:100%"></a>]]></description>
+  <link>' . $imageLink . '</link>
+  <guid isPermaLink="true">' . $imageLink . '</guid>
+  <pubDate>' . date($dateFormat, intval($matches['created_at'])) . '</pubDate>
+  <dc:creator>' . $matches['author'] . '</dc:creator>
+ </item>
+			';
+			
+		}
+	}
+
+	echo '
+</channel>
+</rss>
+';
+
+	dbg ("\nEND XML.");
+?>