245 lines
		
	
	
	
		
			6.6 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			245 lines
		
	
	
	
		
			6.6 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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require_once('Scrape.php');
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function follow_post(&$a) {
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	if(! local_user()) {
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		notice( t('Permission denied.') . EOL);
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		goaway($_SESSION['return_url']);
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		// NOTREACHED
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	}
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	$url = notags(trim($_POST['url']));
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	if($url) {
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		$links = lrdd($url);
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		if(count($links)) {
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			foreach($links as $link) {
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				if($link['@attributes']['rel'] === NAMESPACE_DFRN)
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					$dfrn = $link['@attributes']['href'];
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				if($link['@attributes']['rel'] === 'salmon')
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					$notify = $link['@attributes']['href'];
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				if($link['@attributes']['rel'] === NAMESPACE_FEED)
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					$poll = $link['@attributes']['href'];
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				if($link['@attributes']['rel'] === 'http://microformats.org/profile/hcard')
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					$hcard = $link['@attributes']['href'];
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				if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
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					$profile = $link['@attributes']['href'];
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			}
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		}
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	}	
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	// If we find a DFRN site, send our subscriber to the other person's
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	// dfrn_request page and all the other details will get sorted.
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	if(strlen($dfrn)) {
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		$ret = scrape_dfrn($dfrn);
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		if(is_array($ret) && x($ret,'dfrn-request')) {
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			if(strlen($a->path))
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				$myaddr = bin2hex($a->get_baseurl() . '/profile/' . $a->user['nickname']);
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			else
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				$myaddr = bin2hex($a->user['nickname'] . '@' . $a->get_hostname());
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			goaway($ret['dfrn-request'] . "&addr=$myaddr");
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			// NOTREACHED
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		}
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	}
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	$network  = 'stat';
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	$priority = 0;
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	if($hcard) {
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		$vcard = scrape_vcard($hcard);
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		// Google doesn't use absolute url in profile photos
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		if((x($vcard,'photo')) && substr($vcard['photo'],0,1) == '/') {
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			$h = parse_url($hcard);
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			if($h)
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				$vcard['photo'] = $h['scheme'] . '://' . $h['host'] . $vcard['photo'];
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		}
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	}
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	if(! $profile)
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		$profile = $url;
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	if(! x($vcard,'fn'))
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		if(x($vcard,'nick'))
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			$vcard['fn'] = $vcard['nick'];
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	if((! isset($vcard)) && (! $poll)) {
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		$ret = scrape_feed($url);
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		if(count($ret) && ($ret['feed_atom'] || $ret['feed_rss'])) {
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			$poll = ((x($ret,'feed_atom')) ? $ret['feed_atom'] : $ret['feed_rss']);
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			$vcard = array();
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			require_once('simplepie/simplepie.inc');
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		    $feed = new SimplePie();
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			$xml = fetch_url($poll);
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    		$feed->set_raw_data($xml);
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		    $feed->init();
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			$vcard['photo'] = $feed->get_image_url();
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			$author = $feed->get_author();
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			if($author) {			
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				$vcard['fn'] = trim($author->get_name());
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				$vcard['nick'] = strtolower($vcard['fn']);
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				if(strpos($vcard['nick'],' '))
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					$vcard['nick'] = trim(substr($vcard['nick'],0,strpos($vcard['nick'],' ')));
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				$email = $author->get_email();
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			}
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			else {
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				$item = $feed->get_item(0);
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				if($item) {
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					$author = $item->get_author();
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					if($author) {			
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						$vcard['fn'] = trim($author->get_name());
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						$vcard['nick'] = strtolower($vcard['fn']);
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						if(strpos($vcard['nick'],' '))
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							$vcard['nick'] = trim(substr($vcard['nick'],0,strpos($vcard['nick'],' ')));
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						$email = $author->get_email();
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					}
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				}
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			}
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			if((! $vcard['photo']) && strlen($email))
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				$vcard['photo'] = gravatar_img($email);
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			$network = 'feed';
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			$priority = 2;
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		}
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	}
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	logger('follow: poll=' . $poll . ' notify=' . $notify . ' profile=' . $profile . ' vcard=' . print_r($vcard,true));
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	// do we have enough information?
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	if(! ((x($vcard['fn'])) && ($poll) && ($profile))) {
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		notice( t('The profile address specified does not provide adequate information.') . EOL);
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		goaway($_SESSION['return_url']);
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	}
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	if(! $notify) {
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		notice( t('Limited profile. This person will be unable to receive direct/personal notifications from you.') . EOL);
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	}
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	if(! x($vcard,'photo'))
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		$vcard['photo'] = $a->get_baseurl() . '/images/default-profile.jpg' ; 
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	// check if we already have a contact
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	// the poll url is more reliable than the profile url, as we may have
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	// indirect links or webfinger links
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	$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `poll` = '%s' LIMIT 1",
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		intval(local_user()),
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		dbesc($poll)
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	);			
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	if(count($r)) {
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		// update contact
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		if($r[0]['rel'] == REL_VIP) {
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			q("UPDATE `contact` SET `rel` = %d , `readonly` = 0 WHERE `id` = %d AND `uid` = %d LIMIT 1",
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				intval(REL_BUD),
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				intval($r[0]['id']),
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				intval(local_user())
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			);
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		}
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	}
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	else {
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		// create contact record 
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		$r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `notify`, `poll`, `name`, `nick`, `photo`, `network`, `rel`, `priority`,
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			`blocked`, `readonly`, `pending` )
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			VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 0 ) ",
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			intval(local_user()),
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			dbesc(datetime_convert()),
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			dbesc($profile),
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			dbesc($notify),
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			dbesc($poll),
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			dbesc($vcard['fn']),
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			dbesc($vcard['nick']),
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			dbesc($vcard['photo']),
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			dbesc($network),
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			intval(REL_FAN),
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			intval($priority)
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		);
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	}
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	$r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
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		dbesc($profile),
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		intval(local_user())
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	);
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	if(! count($r)) {
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		notice( t('Unable to retrieve contact information.') . EOL);
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		goaway($_SESSION['return_url']);
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		// NOTREACHED
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	}
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	$contact = $r[0];
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	$contact_id  = $r[0]['id'];
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	require_once("Photo.php");
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	$photos = import_profile_photo($vcard['photo'],local_user(),$contact_id);
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	$r = q("UPDATE `contact` SET `photo` = '%s', 
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			`thumb` = '%s',
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			`micro` = '%s', 
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			`name-date` = '%s', 
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			`uri-date` = '%s', 
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			`avatar-date` = '%s'
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			WHERE `id` = %d LIMIT 1
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		",
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			dbesc($photos[0]),
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			dbesc($photos[1]),
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			dbesc($photos[2]),
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			dbesc(datetime_convert()),
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			dbesc(datetime_convert()),
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			dbesc(datetime_convert()),
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			intval($contact_id)
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		);			
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	// pull feed and consume it, which should subscribe to the hub.
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	$php_path = ((x($a->config,'php_path') && strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
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	proc_close(proc_open("\"$php_path\" \"include/poller.php\" \"$contact_id\" &", array(), $foo));
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	// create a follow slap
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	$tpl = load_view_file('view/follow_slap.tpl');
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	$slap = replace_macros($tpl, array(
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		'$name' => $a->user['username'],
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		'$profile_page' => $a->get_baseurl() . '/profile/' . $a->user['nickname'],
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		'$photo' => $a->contact['photo'],
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		'$thumb' => $a->contact['thumb'],
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		'$published' => datetime_convert('UTC','UTC', 'now', ATOM_TIME),
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		'$item_id' => 'urn:X-dfrn:' . $a->get_hostname() . ':follow:' . random_string(),
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		'$title' => '',
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		'$type' => 'text',
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		'$content' => t('following'),
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		'$nick' => $a->user['nickname'],
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		'$verb' => ACTIVITY_FOLLOW,
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		'$ostat_follow' => ''
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	));
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	$r = q("SELECT `contact`.*, `user`.* FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid` 
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			WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
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			intval(local_user())
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	);
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	if((count($r)) && (x($contact,'notify')) && (strlen($contact['notify']))) {
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		require_once('include/salmon.php');
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		slapper($r[0],$contact['notify'],$slap);
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	}
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	goaway($_SESSION['return_url']);
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	// NOTREACHED
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}
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