From 3c0c8a2dc1bdc196c2fb94da52c07c44c9690fd3 Mon Sep 17 00:00:00 2001
From: Mike Macgirvin <mike@macgirvin.com>
Date: Sun, 18 Jul 2010 20:49:54 -0700
Subject: [PATCH] poller

---
 include/poller.php | 167 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 167 insertions(+)
 create mode 100644 include/poller.php

diff --git a/include/poller.php b/include/poller.php
new file mode 100644
index 000000000..8c3110746
--- /dev/null
+++ b/include/poller.php
@@ -0,0 +1,167 @@
+<?php
+
+
+require_once('boot.php');
+
+$a = new App;
+
+@include('.htconfig.php');
+require_once('dba.php');
+$db = new dba($db_host, $db_user, $db_pass, $db_data, $install);
+	unset($db_host, $db_user, $db_pass, $db_data);
+
+require_once('session.php');
+require_once('datetime.php');
+require_once('simplepie/simplepie.inc');
+require_once('include/items.php');
+
+if($argc < 2)
+	exit;
+
+	$a->set_baseurl($argv[1]);
+
+	$contacts = q("SELECT * FROM `contact` WHERE `dfrn-id` != '' AND `self` = 0 ORDER BY RAND()");
+
+	if(! count($contacts))
+		killme();
+
+	foreach($contacts as $contact) {
+
+		$importer_uid = $contact['uid'];
+
+		$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
+			intval($importer_uid)
+		);
+		if(! count($r))
+			continue;
+
+		$importer = $r[0];
+
+		$last_update = (($contact['last-update'] == '0000-00-00 00:00:00') 
+			? datetime_convert('UTC','UTC','now - 30 days','Y-m-d\TH:i:s\Z')
+			: datetime_convert('UTC','UTC',$contact['last-update'],'Y-m-d\TH:i:s\Z'));
+
+		$url = $contact['poll'] . '?dfrn_id=' . $contact['dfrn-id'] . '&type=data&last_update=' . $last_update ;
+
+		$xml = fetch_url($url);
+
+		if(! $xml)
+			continue;
+
+		$res = simplexml_load_string($xml);
+
+		if((intval($res->status) != 0) || (! strlen($res->challenge)) || ($res->dfrn_id != $contact['dfrn-id']))
+			continue;
+
+		$postvars = array();
+
+		$postvars['dfrn_id'] = $contact['dfrn-id'];
+		$challenge = hex2bin($res->challenge);
+
+		openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
+
+		$xml = post_url($contact['poll'],$postvars);
+		if(! strlen($xml))
+			continue;
+
+echo "XML response:" . $xml . "\r\n";
+echo "Length:" . strlen($xml) . "\r\n";
+
+		$feed = new SimplePie();
+		$feed->set_raw_data($xml);
+		$feed->enable_order_by_date(false);
+		$feed->init();
+
+		foreach($feed->get_items() as $item) {
+
+			$rawdelete = $item->get_item_tags("http://purl.org/atompub/tombstones/1.0", 'deleted-entry');
+			print_r($rawdelete);
+			if($deleted) {
+				// pick out ref and when from attribs
+				// check hasn't happened already, verify ownership and then process it
+
+
+				continue;
+			}
+
+			$is_reply = false;		
+			$item_id = $item->get_id();
+			$rawthread = $item->get_item_tags("http://purl.org/syndication/thread/1.0",'in-reply-to');
+			if(isset($rawthread[0]['attribs']['']['ref'])) {
+				$is_reply = true;
+				$parent_urn = $rawthread[0]['attribs']['']['ref'];
+			}
+
+
+			if($is_reply) {
+
+				// Have we seen it? If not, import it.
+
+				$item_id = $item->get_id();
+
+				$r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
+					dbesc($item_id),
+					intval($importer['uid'])
+				);
+				// FIXME update content if 'updated' changes
+				if(count($r)) {
+					$allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
+					if($allow && $allow[0]['data'] != $r[0]['last-child']) {
+						$r = q("UPDATE `item` SET `last-child` = %d WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
+							intval($allow[0]['data']),
+							dbesc($item_id),
+							intval($importer['uid'])
+						);
+					}
+					continue;
+				}
+				$datarray = get_atom_elements($item);
+				$datarray['parent_urn'] = $parent_urn;
+				$datarray['uid'] = $importer['uid'];
+				$datarray['contact-id'] = $importer['id'];
+				$r = post_remote($a,$datarray);
+				continue;
+			}
+
+			else {
+				// Head post of a conversation. Have we seen it? If not, import it.
+
+				$item_id = $item->get_id();
+				$r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
+					dbesc($item_id),
+					intval($importer['uid'])
+				);
+				if(count($r)) {
+					$allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
+					if($allow && $allow[0]['data'] != $r[0]['last-child']) {
+						$r = q("UPDATE `item` SET `last-child` = %d WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
+							intval($allow[0]['data']),
+							dbesc($item_id),
+							intval($importer['uid'])
+						);
+					}
+					continue;
+				}
+
+				$datarray = get_atom_elements($item);
+				$datarray['parent_urn'] = $item_id;
+				$datarray['uid'] = $importer['uid'];
+				$datarray['contact-id'] = $importer['id'];
+				$r = post_remote($a,$datarray);
+				continue;
+
+			}
+
+		}
+
+		$r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
+			dbesc(datetime_convert()),
+			intval($contact['id'])
+		);
+
+	}
+		
+	killme();
+
+
+