basic functionality pass 1

[tt-rss.git] / backend.php

<?
	header("Content-Type: application/xml");

	include "config.php";

	require_once('magpierss/rss_fetch.inc');

	$link = pg_connect(DB_CONN);	

	pg_query("set client_encoding = 'utf-8'");

	$op = $_GET["op"];
	
	if ($op == "feeds") {

		$result = pg_query("SELECT *,
			(SELECT count(id) FROM ttrss_entries 
				WHERE feed_id = ttrss_feeds.id) AS total,
			(SELECT count(id) FROM ttrss_entries
				WHERE feed_id = ttrss_feeds.id AND unread = true) as unread
			FROM ttrss_feeds ORDER BY title");			

		print "<ul>";

		$lnum = 0;

		while ($line = pg_fetch_assoc($result)) {

			$feed = $line["title"];
			$feed_id = $line["id"];	  
			
			$total = $line["total"];
			$unread = $line["unread"];
			
			$class = ($lnum % 2) ? "even" : "odd";
			
//			if ($lnum == 2 || $lnum == 0) $feed = "<b>$feed</b>";
			
			$feed = "<a href=\"javascript:viewfeed($feed_id, 0);\">$feed ($unread/$total)</a>";
			
			print "<li class=\"$class\">$feed</li>";
			++$lnum;
		}

		print "</ul>";

	}

	if ($op == "view") {

		$id = $_GET["id"];

		$result = pg_query("SELECT title,link,content FROM ttrss_entries
			WHERE	id = '$id'");

		if ($result) {

			$line = pg_fetch_assoc($result);

			print "<table class=\"feedOverview\">";
			print "<tr><td><b>Title:</b></td><td>".$line["title"]."</td></tr>";
			print "<tr><td><b>Link:</b></td><td><a href=\"".$line["link"]."\">".$line["link"]."</a></td></tr>";

			print "</table>";

			print $line["content"];


		}
	}

	if ($op == "viewfeed") {

		$feed = $_GET["feed"];
//		$feed = 0; // for speed

		$skip = $_GET["skip"];

		$result = pg_query("SELECT * FROM ttrss_feeds WHERE id = '$feed'");

		if ($result) {

			$line = pg_fetch_assoc($result);

			$rss = fetch_rss($line["feed_url"]);

			if ($rss) {

				foreach ($rss->items as $item) {

					$entry_guid = $item["id"];

					if (!$entry_guid) $entry_guid = $item["guid"];
					if (!$entry_guid) $entry_guid = $item["link"];

					$entry_timestamp = $item["pubdate"];
					if (!$entry_timestamp) $entry_timestamp = $item["modified"];
					if (!$entry_timestamp) $entry_timestamp = $item["updated"];

					$entry_timestamp = strtotime($entry_timestamp);

					$entry_title = $item["title"];
					$entry_link = $item["link"];

					$entry_content = $item["description"];
					if (!$entry_content) $entry_content = $item["content"];

					$entry_content = pg_escape_string($entry_content);
					$entry_title = pg_escape_string($entry_title);

					$content_md5 = md5($entry_content);

					$result = pg_query("
						SELECT 
							id,unread,md5_hash
						FROM
							ttrss_entries 
						WHERE
							guid = '$entry_guid' OR md5_hash = '$content_md5'");
					
					if (pg_num_rows($result) == 0) {

						$entry_timestamp = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);

						$query = "INSERT INTO ttrss_entries 
								(title, guid, link, updated, content, feed_id, md5_hash) 
							VALUES
								('$entry_title', '$entry_guid', '$entry_link', 
									'$entry_timestamp', '$entry_content', '$feed', 
									'$content_md5')";

						pg_query($query);

					} else {

						$entry_id = pg_fetch_result($result, 0, "id");
						$entry_timestamp = strftime("%Y/%m/%d %H:%M:%S", $entry_timestamp);

						$unread = pg_fetch_result($result, 0, "unread");
						$md5_hash = pg_fetch_result($result, 0, "md5_hash");
					
						if ($md5_hash != $content_md5) 
							$unread = "false";
					
						$query = "UPDATE ttrss_entries 
							SET 
								title ='$entry_title', 
								link = '$entry_link', 
								updated = '$entry_timestamp', 
								content = '$entry_content',
								md5_hash = '$content_md5',
								unread = '$unread'
							WHERE
								id = '$entry_id'";

						$result = pg_query($query);

//						print "$entry_guid - $entry_timestamp - $entry_title - 
//							$entry_link - $entry_id<br>";

					}

				}
			
				print "<table class=\"headlines\" width=\"100%\">";
				print "<tr><td colspan=\"2\" class=\"title\">" . $rss->channel["title"] . "</td></tr>";

				$result = pg_query("SELECT id,title,updated,unread FROM ttrss_entries WHERE
					feed_id = '$feed' ORDER BY updated LIMIT 10 OFFSET $skip");

				$lnum = 0;

				while ($line = pg_fetch_assoc($result)) {

					$class = ($lnum % 2) ? "even" : "odd";

					if ($line["unread"] == "t") 
						$class .= "Unread";

					$content_link = "<a href=\"javascript:view(".$line["id"].");\">".$line["title"]."</a>";
					
					print "<tr class='$class' id='RROW-".$line["id"]."'>";
					print "<td class='headlineUpdated'>".$line["updated"]."</td>";
					print "<td class='headlineTitle'>$content_link</td>";

					print "</tr>";

					++$lnum;
				}

				print "<tr><td colspan=\"2\" class=\"headlineToolbar\">";

				$next_skip = $skip + 10;
				$prev_skip = $skip - 10;

				print "<a class=\"button\" 
					href=\"javascript:viewfeed($feed, $prev_skip);\">Previous Page</a>";
				print "&nbsp;";
				print "<a class=\"button\" 
					href=\"javascript:viewfeed($feed, $next_skip);\">Next Page</a>";

				print "</td></tr>";
				print "</table>";

			}

		}
	}


?>