Provide the ability to subscribe to our user from other federated sites.
This is a read-only relationship until the rest of the salmon magic-envelope stuff lands
This commit is contained in:
		
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								f1977d420e
							
						
					
				
			
			
				commit
				
					
						3c440f70c6
					
				
			
		
					 3 changed files with 161 additions and 120 deletions
				
			
		
							
								
								
									
										12
									
								
								boot.php
									
										
									
									
									
								
							
							
						
						
									
										12
									
								
								boot.php
									
										
									
									
									
								
							| 
						 | 
				
			
			@ -2,10 +2,11 @@
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set_time_limit(0);
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define ( 'BUILD_ID' , 1007 );
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define ( 'BUILD_ID',             1007 );
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define ( 'DFRN_PROTOCOL_VERSION', '2.0');
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define ( 'EOL', "<br />\r\n");
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define ( 'ATOM_TIME',  'Y-m-d\TH:i:s\Z' );
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define ( 'EOL',                  "<br />\r\n");
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define ( 'ATOM_TIME',            'Y-m-d\TH:i:s\Z' );
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define ( 'REGISTER_CLOSED',  0);
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define ( 'REGISTER_APPROVE', 1);
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| 
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			@ -34,6 +35,7 @@ define ( 'NAMESPACE_TOMB' ,           'http://purl.org/atompub/tombstones/1.0' )
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define ( 'NAMESPACE_ACTIVITY',        'http://activitystrea.ms/spec/1.0/' );
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define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/');
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define ( 'NAMESPACE_SALMON_ME',       'http://salmon-protocol.org/ns/magic-env');
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define ( 'NAMESPACE_OSTATUSSUB',      'http://ostatus.org/schema/1.0/subscribe');
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define ( 'ACTIVITY_LIKE',        NAMESPACE_ACTIVITY_SCHEMA . 'like' );
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define ( 'ACTIVITY_DISLIKE',     NAMESPACE_DFRN            . '/dislike' );
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| 
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			@ -848,6 +850,10 @@ function webfinger_dfrn($s) {
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		foreach($links as $link)
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			if($link['@attributes']['rel'] === NAMESPACE_DFRN)
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				return $link['@attributes']['href'];
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		foreach($links as $link)
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			if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
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				return 'stat:' . $link['@attributes']['template'];
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	}
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	return '';
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}}
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			@ -183,143 +183,175 @@ function dfrn_request_post(&$a) {
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		$url = webfinger_dfrn($url);
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		if(substr($url,0,5) === 'stat:') {
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			$network = 'stat';
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			$url = substr($url,5);
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		}
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		else {
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			$network = 'dfrn';
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		}
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		if(! strlen($url)) {
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			notice( t("Unable to resolve your name at the provided location.") . EOL);			
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			return;
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		}
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		$ret = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1", 
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			intval($uid),
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			dbesc($url)
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		);
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		if(count($ret)) {
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			if(strlen($ret[0]['issued-id'])) {
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				notice( t('You have already introduced yourself here.') . EOL );
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				return;
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			}
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			else {
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				$contact_record = $ret[0];
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				$parms = array('dfrn-request' => $ret[0]['request']);
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			}
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		}
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		$issued_id = random_string();
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		if(is_array($contact_record)) {
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			// There is a contact record but no issued-id, so this
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			// is a reciprocal introduction from a known contact
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			$r = q("UPDATE `contact` SET `issued-id` = '%s' WHERE `id` = %d LIMIT 1",
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				dbesc($issued_id),
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				intval($contact_record['id'])
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		if($network == 'dfrn') {
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			$ret = q("SELECT * FROM `contact` WHERE `uid` = %d AND `url` = '%s' LIMIT 1", 
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				intval($uid),
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				dbesc($url)
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			);
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		}
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		else {
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			if(! validate_url($url)) {
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				notice( t('Invalid profile URL.') . EOL);
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				goaway($a->get_baseurl() . '/' . $a->cmd);
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				return; // NOTREACHED
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			}
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			if(! allowed_url($url)) {
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				notice( t('Disallowed profile URL.') . EOL);
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				goaway($a->get_baseurl() . '/' . $a->cmd);
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				return; // NOTREACHED
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			}
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			require_once('Scrape.php');
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			$parms = scrape_dfrn($url);
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			if(! count($parms)) {
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				notice( t('Profile location is not valid or does not contain profile information.') . EOL );
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				goaway($a->get_baseurl() . '/' . $a->cmd);
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			}
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			else {
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				if(! x($parms,'fn'))
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					notice( t('Warning: profile location has no identifiable owner name.') . EOL );
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				if(! x($parms,'photo'))
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					notice( t('Warning: profile location has no profile photo.') . EOL );
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				$invalid = validate_dfrn($parms);		
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				if($invalid) {
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					notice( $invalid . t(' required parameter') 
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						. (($invalid == 1) ? t(" was ") : t("s were ") )
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						. t("not found at the given location.") . EOL ) ;
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			if(count($ret)) {
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				if(strlen($ret[0]['issued-id'])) {
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					notice( t('You have already introduced yourself here.') . EOL );
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					return;
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				}
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				else {
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					$contact_record = $ret[0];
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					$parms = array('dfrn-request' => $ret[0]['request']);
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				}
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			}
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			$issued_id = random_string();
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			$parms['url'] = $url;
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			$parms['issued-id'] = $issued_id;
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			dbesc_array($parms);
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			$r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `name`, `issued-id`, `photo`, `site-pubkey`,
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				`request`, `confirm`, `notify`, `poll` )
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				VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )",
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				intval($uid),
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				datetime_convert(),
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				$parms['url'],
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				$parms['fn'],
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				$parms['issued-id'],
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				$parms['photo'],
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				$parms['key'],
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				$parms['dfrn-request'],
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				$parms['dfrn-confirm'],
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				$parms['dfrn-notify'],
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				$parms['dfrn-poll']
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			);
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			// find the contact record we just created
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			if($r) {	
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				$r = q("SELECT `id` FROM `contact` 
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					WHERE `uid` = %d AND `url` = '%s' AND `issued-id` = '%s' LIMIT 1",
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					intval($uid),
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					$parms['url'],
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					$parms['issued-id']
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			if(is_array($contact_record)) {
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				// There is a contact record but no issued-id, so this
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				// is a reciprocal introduction from a known contact
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				$r = q("UPDATE `contact` SET `issued-id` = '%s' WHERE `id` = %d LIMIT 1",
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					dbesc($issued_id),
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					intval($contact_record['id'])
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				);
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			}
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			else {
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				if(! validate_url($url)) {
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					notice( t('Invalid profile URL.') . EOL);
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					goaway($a->get_baseurl() . '/' . $a->cmd);
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					return; // NOTREACHED
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				}
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				if(! allowed_url($url)) {
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					notice( t('Disallowed profile URL.') . EOL);
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					goaway($a->get_baseurl() . '/' . $a->cmd);
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					return; // NOTREACHED
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				}
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				require_once('Scrape.php');
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				$parms = scrape_dfrn($url);
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				if(! count($parms)) {
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					notice( t('Profile location is not valid or does not contain profile information.') . EOL );
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					goaway($a->get_baseurl() . '/' . $a->cmd);
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				}
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				else {
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					if(! x($parms,'fn'))
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						notice( t('Warning: profile location has no identifiable owner name.') . EOL );
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					if(! x($parms,'photo'))
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						notice( t('Warning: profile location has no profile photo.') . EOL );
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					$invalid = validate_dfrn($parms);		
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					if($invalid) {
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						notice( $invalid . t(' required parameter') 
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							. (($invalid == 1) ? t(" was ") : t("s were ") )
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							. t("not found at the given location.") . EOL ) ;
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						return;
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					}
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				}
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				$parms['url'] = $url;
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				$parms['issued-id'] = $issued_id;
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				dbesc_array($parms);
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				$r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `name`, `issued-id`, `photo`, `site-pubkey`,
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					`request`, `confirm`, `notify`, `poll` )
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					VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )",
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					intval($uid),
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					datetime_convert(),
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					$parms['url'],
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					$parms['fn'],
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					$parms['issued-id'],
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					$parms['photo'],
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					$parms['key'],
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					$parms['dfrn-request'],
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					$parms['dfrn-confirm'],
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					$parms['dfrn-notify'],
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					$parms['dfrn-poll']
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				);
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				// find the contact record we just created
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				if($r) {	
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					$r = q("SELECT `id` FROM `contact` 
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						WHERE `uid` = %d AND `url` = '%s' AND `issued-id` = '%s' LIMIT 1",
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						intval($uid),
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						$parms['url'],
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						$parms['issued-id']
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					);
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					if(count($r)) 
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						$contact_record = $r[0];
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				}
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			}
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			if($r === false) {
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				notice( t('Failed to update contact record.') . EOL );
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				return;
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			}
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			$hash = random_string() . (string) time();   // Generate a confirm_key
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			if(is_array($contact_record)) {
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				$ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime`)
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					VALUES ( %d, %d, 1, %d, '%s', '%s', '%s' )",
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					intval($uid),
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					intval($contact_record['id']),
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					((x($_POST,'knowyou') && ($_POST['knowyou'] == 1)) ? 1 : 0),
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					dbesc(notags(trim($_POST['dfrn-request-message']))),
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					dbesc($hash),
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		||||
					dbesc(datetime_convert())
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				);
 | 
			
		||||
				if(count($r)) 
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		||||
					$contact_record = $r[0];
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		||||
			}
 | 
			
		||||
	
 | 
			
		||||
		}
 | 
			
		||||
		if($r === false) {
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		||||
			notice( t('Failed to update contact record.') . EOL );
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		||||
			return;
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		||||
		}
 | 
			
		||||
 | 
			
		||||
		$hash = random_string() . (string) time();   // Generate a confirm_key
 | 
			
		||||
			// This notice will only be seen by the requestor if  the requestor and requestee are on the same server.
 | 
			
		||||
 | 
			
		||||
		if(is_array($contact_record)) {
 | 
			
		||||
			$ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime`)
 | 
			
		||||
				VALUES ( %d, %d, 1, %d, '%s', '%s', '%s' )",
 | 
			
		||||
				intval($uid),
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		||||
				intval($contact_record['id']),
 | 
			
		||||
				((x($_POST,'knowyou') && ($_POST['knowyou'] == 1)) ? 1 : 0),
 | 
			
		||||
				dbesc(notags(trim($_POST['dfrn-request-message']))),
 | 
			
		||||
				dbesc($hash),
 | 
			
		||||
				dbesc(datetime_convert())
 | 
			
		||||
			if(! $failed) 
 | 
			
		||||
				notice( t('Your introduction has been sent.') . EOL );
 | 
			
		||||
 | 
			
		||||
			// "Homecoming" - send the requestor back to their site to record the introduction.
 | 
			
		||||
 | 
			
		||||
			$dfrn_url = bin2hex($a->get_baseurl() . '/profile/' . $nickname);
 | 
			
		||||
			$aes_allow = ((function_exists('openssl_encrypt')) ? 1 : 0);
 | 
			
		||||
 | 
			
		||||
			goaway($parms['dfrn-request'] . "?dfrn_url=$dfrn_url" 
 | 
			
		||||
				. '&dfrn_version=' . DFRN_PROTOCOL_VERSION 
 | 
			
		||||
				. '&confirm_key='  . $hash 
 | 
			
		||||
				. (($aes_allow) ? "&aes_allow=1" : "")
 | 
			
		||||
			);
 | 
			
		||||
			// NOTREACHED
 | 
			
		||||
			// END $network === 'dfrn'
 | 
			
		||||
		}
 | 
			
		||||
	
 | 
			
		||||
		elseif($network === 'stat') {
 | 
			
		||||
			
 | 
			
		||||
			/**
 | 
			
		||||
			*
 | 
			
		||||
			* OStatus network
 | 
			
		||||
			* Check contact existence
 | 
			
		||||
			* Try and scrape together enough information to create a contact record, with us as REL_VIP
 | 
			
		||||
			* Substitute our user's feed URL into $url template
 | 
			
		||||
			* Send the subscriber home to subscribe
 | 
			
		||||
			*
 | 
			
		||||
			**/
 | 
			
		||||
 | 
			
		||||
		// This notice will only be seen by the requestor if  the requestor and requestee are on the same server.
 | 
			
		||||
			$url = str_replace('{uri}', $a->get_baseurl() . '/dfrn_poll/' . $nickname, $url);
 | 
			
		||||
			goaway($url);
 | 
			
		||||
			// NOTREACHED
 | 
			
		||||
			// END $network === 'stat'
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		if(! $failed) 
 | 
			
		||||
			notice( t('Your introduction has been sent.') . EOL );
 | 
			
		||||
 | 
			
		||||
		// "Homecoming" - send the requestor back to their site to record the introduction.
 | 
			
		||||
 | 
			
		||||
		$dfrn_url = bin2hex($a->get_baseurl() . '/profile/' . $nickname);
 | 
			
		||||
		$aes_allow = ((function_exists('openssl_encrypt')) ? 1 : 0);
 | 
			
		||||
 | 
			
		||||
		goaway($parms['dfrn-request'] . "?dfrn_url=$dfrn_url" . '&confirm_key=' . $hash . (($aes_allow) ? "&aes_allow=1" : ""));
 | 
			
		||||
		return; // NOTREACHED
 | 
			
		||||
 | 
			
		||||
	}
 | 
			
		||||
	return;
 | 
			
		||||
	}	return;
 | 
			
		||||
}}
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -4,7 +4,10 @@
 | 
			
		|||
<p id="dfrn-request-intro">
 | 
			
		||||
You may request a connection with this member if you have a valid profile address<br />
 | 
			
		||||
on one of the following social networks:<br />
 | 
			
		||||
<ul id="dfrn-request-networks"><li><a href="http://dfrn.org">mistpark/DFRN</a></li></ul>
 | 
			
		||||
<ul id="dfrn-request-networks">
 | 
			
		||||
<li><a href="http://dfrn.org">Mistpark/DFRN</a> (fully supported)</li>
 | 
			
		||||
<li><a href="http://ostatus.org">Federation/OStatus/Diaspora/GNU-social</a> (limited - experimental)</li>
 | 
			
		||||
</ul>
 | 
			
		||||
</p>
 | 
			
		||||
 | 
			
		||||
<form action="dfrn_request/$nickname" method="post" />
 | 
			
		||||
| 
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