From 07274bb922204a39889e8a3db42adb94708572fb Mon Sep 17 00:00:00 2001
From: Mike Macgirvin <mike@macgirvin.com>
Date: Sun, 18 Jul 2010 06:02:55 -0700
Subject: [PATCH] feed generator

---
 include/items.php | 133 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 include/items.php

diff --git a/include/items.php b/include/items.php
new file mode 100644
index 0000000000..d0ec64fb98
--- /dev/null
+++ b/include/items.php
@@ -0,0 +1,133 @@
+<?php
+
+
+function get_feed_for(&$a,$dfrn_id,$owner_id,$last_update) {
+
+	// default permissions - anonymous user
+
+	$sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' AND `deny_cid` = '' AND `deny_gid` = '' ";
+
+	$r = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
+		intval($owner_id)
+	);
+	if(count($r))
+		$owner = $r[0];
+	else
+		killme();
+
+	if($dfrn_id != '*') {
+
+		$r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' LIMIT 1",
+			dbesc($dfrn_id)
+		);
+		if(! count($r))
+			return false;
+
+		$contact = $r[0];
+		$groups = init_groups_visitor($contact['id']);
+
+
+		$gs = '<<>>'; // should be impossible to match
+		if(count($groups)) {
+			foreach($groups as $g)
+				$gs .= '|<' . intval($g) . '>';
+		} 
+		$sql_extra = sprintf(
+			" AND ( `allow_cid` = '' OR `allow_cid` REGEXP '<%d>' ) 
+			AND ( `deny_cid` = '' OR  NOT `deny_cid` REGEXP '<%d>' ) 
+			AND ( `allow_gid` = '' OR `allow_gid` REGEXP '%s' )
+			AND ( `deny_gid` = '' OR NOT `deny_gid` REGEXP '%s') ",
+
+			intval($_SESSION['visitor_id']),
+			intval($_SESSION['visitor_id']),
+			dbesc($gs),
+			dbesc($gs)
+		);
+	}
+
+	if(! strlen($last_update))
+		$last_update = 'now - 30 days';
+	$check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
+
+	$r = q("SELECT `item`.*, `item`.`id` AS `item_id`, 
+		`contact`.`name`, `contact`.`photo`, `contact`.`url`, 
+		`contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`, 
+		`contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`
+		FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
+		WHERE `item`.`uid` = %d AND `item`.`visible` = 1 AND `item`.`deleted` = 0
+		AND `item`.`type` != 'remote' AND `contact`.`blocked` = 0 
+		AND `item`.`edited` > '%s'
+		$sql_extra
+		ORDER BY `parent` DESC, `id` ASC LIMIT 0, 300",
+		intval($owner_id),
+		dbesc($check_date)
+	);
+	if(! count($r))
+		killme();
+
+	$items = $r;
+
+	$feed_template = file_get_contents('view/atom_feed.tpl');
+	$tomb_template = file_get_contents('view/atom_tomb.tpl');
+	$item_template = file_get_contents('view/atom_item.tpl');
+	$cmnt_template = file_get_contents('view/atom_cmnt.tpl');
+
+	$atom = '';
+
+
+	$atom .= replace_macros($feed_template, array(
+			'$feed_id' => xmlify($a->get_baseurl()),
+			'$feed_title' => xmlify($owner['name']),
+			'$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', $updated . '+00:00' , 'Y-m-d\TH:i:s\Z')) ,
+			'$name' => xmlify($owner['name']),
+			'$profile_page' => xmlify($owner['url']),
+			'$photo' => xmlify($owner['photo'])
+	));
+
+	foreach($items as $item) {
+		if($item['deleted']) {
+			$atom .= replace_macros($tomb_template, array(
+				'$id' => xmlify(((strlen($item['remote-id'])) ? $item['remote-id'] : "urn:X-dfrn:$baseurl:{$owner['uid']}:{$item['hash']}")),
+				'$updated' => xmlify(datetime_convert('UTC', 'UTC', $item['edited'] . '+00:00' , 'Y-m-d\TH:i:s\Z'))
+			));
+		}
+		else {
+
+			if($item['parent'] == $item['id']) {
+				$atom .= replace_macros($item_template, array(
+					'$name' => xmlify($item['name']),
+					'$profile_page' => xmlify($item['url']),
+					'$thumb' => xmlify($item['thumb']),
+					'$owner_name' => xmlify($item['owner-name']),
+					'$owner_profile_page' => xmlify($item['owner-link']),
+					'$owner_thumb' => xmlify($item['owner-avatar']),
+					'$item_id' => xmlify(((strlen($item['remote-id'])) ? $item['remote-id'] : "urn:X-dfrn:$baseurl:{$owner['uid']}:{$item['hash']}")),
+					'$title' => xmlify($item['name']),
+					'$published' => xmlify(datetime_convert('UTC', 'UTC', $item['created'] . '+00:00' , 'Y-m-d\TH:i:s\Z')),
+					'$updated' => xmlify(datetime_convert('UTC', 'UTC', $item['edited'] . '+00:00' , 'Y-m-d\TH:i:s\Z')),
+					'$content' =>xmlify($item['body']),
+					'$comment_allow' => (($item['last-child'] && strlen($contact['dfrn-id'] && (! $contact['blocked']))) ? 1 : 0)
+				));
+			}
+			else {
+				$atom .= replace_macros($cmnt_template, array(
+					'$name' => xmlify($item['name']),
+					'$profile_page' => xmlify($item['url']),
+					'$thumb' => xmlify($item['thumb']),
+					'$item_id' => xmlify(((strlen($item['remote-id'])) ? $item['remote-id'] : "urn:X-dfrn:$baseurl:{$owner['uid']}:{$item['hash']}")),
+					'$title' => xmlify($item['title']),
+					'$published' => xmlify(datetime_convert('UTC', 'UTC', $item['created'] . '+00:00' , 'Y-m-d\TH:i:s\Z')),
+					'$updated' => xmlify(datetime_convert('UTC', 'UTC', $item['edited'] . '+00:00' , 'Y-m-d\TH:i:s\Z')),
+					'$content' =>xmlify($item['body']),
+					'$parent_id' => xmlify("urn:X-dfrn:$baseurl:{$owner['uid']}:{$items[0]['hash']}"),
+					'$comment_allow' => (($item['last-child']) ? 1 : 0)
+				));
+			}
+		}
+	}
+
+
+	$atom .= "</feed>\r\n";
+
+	return $atom;
+} 
\ No newline at end of file