721 lines
		
	
	
	
		
			24 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			721 lines
		
	
	
	
		
			24 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
 | |
| /**
 | |
|  * @file mod/dfrn_confirm.php
 | |
|  * @brief Module: dfrn_confirm
 | |
|  * Purpose: Friendship acceptance for DFRN contacts
 | |
|  *
 | |
|  * There are two possible entry points and three scenarios.
 | |
|  *
 | |
|  *   1. A form was submitted by our user approving a friendship that originated elsewhere.
 | |
|  *      This may also be called from dfrn_request to automatically approve a friendship.
 | |
|  *
 | |
|  *   2. We may be the target or other side of the conversation to scenario 1, and will
 | |
|  *      interact with that process on our own user's behalf.
 | |
|  *
 | |
|  *  @see PDF with dfrn specs: https://github.com/friendica/friendica/blob/master/spec/dfrn2.pdf
 | |
|  *    You also find a graphic which describes the confirmation process at
 | |
|  *    https://github.com/friendica/friendica/blob/master/spec/dfrn2_contact_confirmation.png
 | |
|  */
 | |
| 
 | |
| use Friendica\App;
 | |
| use Friendica\Core\Config;
 | |
| use Friendica\Core\L10n;
 | |
| use Friendica\Core\PConfig;
 | |
| use Friendica\Core\System;
 | |
| use Friendica\Core\Worker;
 | |
| use Friendica\Database\DBM;
 | |
| use Friendica\Model\Contact;
 | |
| use Friendica\Model\Group;
 | |
| use Friendica\Model\Item;
 | |
| use Friendica\Model\User;
 | |
| use Friendica\Network\Probe;
 | |
| use Friendica\Protocol\Diaspora;
 | |
| use Friendica\Util\Crypto;
 | |
| use Friendica\Util\DateTimeFormat;
 | |
| use Friendica\Util\Network;
 | |
| use Friendica\Util\XML;
 | |
| 
 | |
| require_once 'include/enotify.php';
 | |
| require_once 'include/items.php';
 | |
| 
 | |
| function dfrn_confirm_post(App $a, $handsfree = null)
 | |
| {
 | |
| 	$node = null;
 | |
| 	if (is_array($handsfree)) {
 | |
| 		/*
 | |
| 		 * We were called directly from dfrn_request due to automatic friend acceptance.
 | |
| 		 * Any $_POST parameters we may require are supplied in the $handsfree array.
 | |
| 		 *
 | |
| 		 */
 | |
| 		$node = $handsfree['node'];
 | |
| 		$a->interactive = false; // notice() becomes a no-op since nobody is there to see it
 | |
| 	} elseif ($a->argc > 1) {
 | |
| 		$node = $a->argv[1];
 | |
| 	}
 | |
| 
 | |
| 	/*
 | |
| 	 * Main entry point. Scenario 1. Our user received a friend request notification (perhaps
 | |
| 	 * from another site) and clicked 'Approve'.
 | |
| 	 * $POST['source_url'] is not set. If it is, it indicates Scenario 2.
 | |
| 	 *
 | |
| 	 * We may also have been called directly from dfrn_request ($handsfree != null) due to
 | |
| 	 * this being a page type which supports automatic friend acceptance. That is also Scenario 1
 | |
| 	 * since we are operating on behalf of our registered user to approve a friendship.
 | |
| 	 */
 | |
| 	if (!x($_POST, 'source_url')) {
 | |
| 		$uid = defaults($handsfree, 'uid', local_user());
 | |
| 		if (!$uid) {
 | |
| 			notice(L10n::t('Permission denied.') . EOL);
 | |
| 			return;
 | |
| 		}
 | |
| 
 | |
| 		$user = dba::selectFirst('user', [], ['uid' => $uid]);
 | |
| 		if (!DBM::is_result($user)) {
 | |
| 			notice(L10n::t('Profile not found.') . EOL);
 | |
| 			return;
 | |
| 		}
 | |
| 
 | |
| 		// These data elements may come from either the friend request notification form or $handsfree array.
 | |
| 		if (is_array($handsfree)) {
 | |
| 			logger('Confirm in handsfree mode');
 | |
| 			$dfrn_id  = $handsfree['dfrn_id'];
 | |
| 			$intro_id = $handsfree['intro_id'];
 | |
| 			$duplex   = $handsfree['duplex'];
 | |
| 			$cid      = 0;
 | |
| 			$hidden   = intval(defaults($handsfree, 'hidden'  , 0));
 | |
| 			$activity = intval(defaults($handsfree, 'activity', 0));
 | |
| 		} else {
 | |
| 			$dfrn_id  = notags(trim(defaults($_POST, 'dfrn_id'   , '')));
 | |
| 			$intro_id =      intval(defaults($_POST, 'intro_id'  , 0));
 | |
| 			$duplex   =      intval(defaults($_POST, 'duplex'    , 0));
 | |
| 			$cid      =      intval(defaults($_POST, 'contact_id', 0));
 | |
| 			$hidden   =      intval(defaults($_POST, 'hidden'    , 0));
 | |
| 			$activity =      intval(defaults($_POST, 'activity'  , 0));
 | |
| 		}
 | |
| 
 | |
| 		/*
 | |
| 		 * Ensure that dfrn_id has precedence when we go to find the contact record.
 | |
| 		 * We only want to search based on contact id if there is no dfrn_id,
 | |
| 		 * e.g. for OStatus network followers.
 | |
| 		 */
 | |
| 		if (strlen($dfrn_id)) {
 | |
| 			$cid = 0;
 | |
| 		}
 | |
| 
 | |
| 		logger('Confirming request for dfrn_id (issued) ' . $dfrn_id);
 | |
| 		if ($cid) {
 | |
| 			logger('Confirming follower with contact_id: ' . $cid);
 | |
| 		}
 | |
| 
 | |
| 		/*
 | |
| 		 * The other person will have been issued an ID when they first requested friendship.
 | |
| 		 * Locate their record. At this time, their record will have both pending and blocked set to 1.
 | |
| 		 * There won't be any dfrn_id if this is a network follower, so use the contact_id instead.
 | |
| 		 */
 | |
| 		$r = q("SELECT *
 | |
| 			FROM `contact`
 | |
| 			WHERE (
 | |
| 				(`issued-id` != '' AND `issued-id` = '%s')
 | |
| 				OR
 | |
| 				(`id` = %d AND `id` != 0)
 | |
| 			)
 | |
| 			AND `uid` = %d
 | |
| 			AND `duplex` = 0
 | |
| 			LIMIT 1",
 | |
| 			dbesc($dfrn_id),
 | |
| 			intval($cid),
 | |
| 			intval($uid)
 | |
| 		);
 | |
| 		if (!DBM::is_result($r)) {
 | |
| 			logger('Contact not found in DB.');
 | |
| 			notice(L10n::t('Contact not found.') . EOL);
 | |
| 			notice(L10n::t('This may occasionally happen if contact was requested by both persons and it has already been approved.') . EOL);
 | |
| 			return;
 | |
| 		}
 | |
| 
 | |
| 		$contact = $r[0];
 | |
| 
 | |
| 		$contact_id   = $contact['id'];
 | |
| 		$relation     = $contact['rel'];
 | |
| 		$site_pubkey  = $contact['site-pubkey'];
 | |
| 		$dfrn_confirm = $contact['confirm'];
 | |
| 		$aes_allow    = $contact['aes_allow'];
 | |
| 
 | |
| 		$network = ((strlen($contact['issued-id'])) ? NETWORK_DFRN : NETWORK_OSTATUS);
 | |
| 
 | |
| 		if ($contact['network']) {
 | |
| 			$network = $contact['network'];
 | |
| 		}
 | |
| 
 | |
| 		if ($network === NETWORK_DFRN) {
 | |
| 			/*
 | |
| 			 * Generate a key pair for all further communications with this person.
 | |
| 			 * We have a keypair for every contact, and a site key for unknown people.
 | |
| 			 * This provides a means to carry on relationships with other people if
 | |
| 			 * any single key is compromised. It is a robust key. We're much more
 | |
| 			 * worried about key leakage than anybody cracking it.
 | |
| 			 */
 | |
| 			$res = Crypto::newKeypair(4096);
 | |
| 
 | |
| 			$private_key = $res['prvkey'];
 | |
| 			$public_key  = $res['pubkey'];
 | |
| 
 | |
| 			// Save the private key. Send them the public key.
 | |
| 			q("UPDATE `contact` SET `prvkey` = '%s' WHERE `id` = %d AND `uid` = %d",
 | |
| 				dbesc($private_key),
 | |
| 				intval($contact_id),
 | |
| 				intval($uid)
 | |
| 			);
 | |
| 
 | |
| 			$params = [];
 | |
| 
 | |
| 			/*
 | |
| 			 * Per the DFRN protocol, we will verify both ends by encrypting the dfrn_id with our
 | |
| 			 * site private key (person on the other end can decrypt it with our site public key).
 | |
| 			 * Then encrypt our profile URL with the other person's site public key. They can decrypt
 | |
| 			 * it with their site private key. If the decryption on the other end fails for either
 | |
| 			 * item, it indicates tampering or key failure on at least one site and we will not be
 | |
| 			 * able to provide a secure communication pathway.
 | |
| 			 *
 | |
| 			 * If other site is willing to accept full encryption, (aes_allow is 1 AND we have php5.3
 | |
| 			 * or later) then we encrypt the personal public key we send them using AES-256-CBC and a
 | |
| 			 * random key which is encrypted with their site public key.
 | |
| 			 */
 | |
| 
 | |
| 			$src_aes_key = openssl_random_pseudo_bytes(64);
 | |
| 
 | |
| 			$result = '';
 | |
| 			openssl_private_encrypt($dfrn_id, $result, $user['prvkey']);
 | |
| 
 | |
| 			$params['dfrn_id'] = bin2hex($result);
 | |
| 			$params['public_key'] = $public_key;
 | |
| 
 | |
| 			$my_url = System::baseUrl() . '/profile/' . $user['nickname'];
 | |
| 
 | |
| 			openssl_public_encrypt($my_url, $params['source_url'], $site_pubkey);
 | |
| 			$params['source_url'] = bin2hex($params['source_url']);
 | |
| 
 | |
| 			if ($aes_allow && function_exists('openssl_encrypt')) {
 | |
| 				openssl_public_encrypt($src_aes_key, $params['aes_key'], $site_pubkey);
 | |
| 				$params['aes_key'] = bin2hex($params['aes_key']);
 | |
| 				$params['public_key'] = bin2hex(openssl_encrypt($public_key, 'AES-256-CBC', $src_aes_key));
 | |
| 			}
 | |
| 
 | |
| 			$params['dfrn_version'] = DFRN_PROTOCOL_VERSION;
 | |
| 			if ($duplex == 1) {
 | |
| 				$params['duplex'] = 1;
 | |
| 			}
 | |
| 
 | |
| 			if ($user['page-flags'] == PAGE_COMMUNITY) {
 | |
| 				$params['page'] = 1;
 | |
| 			}
 | |
| 
 | |
| 			if ($user['page-flags'] == PAGE_PRVGROUP) {
 | |
| 				$params['page'] = 2;
 | |
| 			}
 | |
| 
 | |
| 			logger('Confirm: posting data to ' . $dfrn_confirm . ': ' . print_r($params, true), LOGGER_DATA);
 | |
| 
 | |
| 			/*
 | |
| 			 *
 | |
| 			 * POST all this stuff to the other site.
 | |
| 			 * Temporarily raise the network timeout to 120 seconds because the default 60
 | |
| 			 * doesn't always give the other side quite enough time to decrypt everything.
 | |
| 			 *
 | |
| 			 */
 | |
| 
 | |
| 			$res = Network::post($dfrn_confirm, $params, null, $redirects, 120);
 | |
| 
 | |
| 			logger(' Confirm: received data: ' . $res, LOGGER_DATA);
 | |
| 
 | |
| 			// Now figure out what they responded. Try to be robust if the remote site is
 | |
| 			// having difficulty and throwing up errors of some kind.
 | |
| 
 | |
| 			$leading_junk = substr($res, 0, strpos($res, '<?xml'));
 | |
| 
 | |
| 			$res = substr($res, strpos($res, '<?xml'));
 | |
| 			if (!strlen($res)) {
 | |
| 				// No XML at all, this exchange is messed up really bad.
 | |
| 				// We shouldn't proceed, because the xml parser might choke,
 | |
| 				// and $status is going to be zero, which indicates success.
 | |
| 				// We can hardly call this a success.
 | |
| 				notice(L10n::t('Response from remote site was not understood.') . EOL);
 | |
| 				return;
 | |
| 			}
 | |
| 
 | |
| 			if (strlen($leading_junk) && Config::get('system', 'debugging')) {
 | |
| 				// This might be more common. Mixed error text and some XML.
 | |
| 				// If we're configured for debugging, show the text. Proceed in either case.
 | |
| 				notice(L10n::t('Unexpected response from remote site: ') . EOL . $leading_junk . EOL);
 | |
| 			}
 | |
| 
 | |
| 			if (stristr($res, "<status") === false) {
 | |
| 				// wrong xml! stop here!
 | |
| 				notice(L10n::t('Unexpected response from remote site: ') . EOL . htmlspecialchars($res) . EOL);
 | |
| 				return;
 | |
| 			}
 | |
| 
 | |
| 			$xml = XML::parseString($res);
 | |
| 			$status = (int) $xml->status;
 | |
| 			$message = unxmlify($xml->message);   // human readable text of what may have gone wrong.
 | |
| 			switch ($status) {
 | |
| 				case 0:
 | |
| 					info(L10n::t("Confirmation completed successfully.") . EOL);
 | |
| 					break;
 | |
| 				case 1:
 | |
| 					// birthday paradox - generate new dfrn-id and fall through.
 | |
| 					$new_dfrn_id = random_string();
 | |
| 					q("UPDATE contact SET `issued-id` = '%s' WHERE `id` = %d AND `uid` = %d",
 | |
| 						dbesc($new_dfrn_id),
 | |
| 						intval($contact_id),
 | |
| 						intval($uid)
 | |
| 					);
 | |
| 
 | |
| 				case 2:
 | |
| 					notice(L10n::t("Temporary failure. Please wait and try again.") . EOL);
 | |
| 					break;
 | |
| 				case 3:
 | |
| 					notice(L10n::t("Introduction failed or was revoked.") . EOL);
 | |
| 					break;
 | |
| 			}
 | |
| 
 | |
| 			if (strlen($message)) {
 | |
| 				notice(L10n::t('Remote site reported: ') . $message . EOL);
 | |
| 			}
 | |
| 
 | |
| 			if (($status == 0) && ($intro_id)) {
 | |
| 				// Success. Delete the notification.
 | |
| 				q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d",
 | |
| 					intval($intro_id),
 | |
| 					intval($uid)
 | |
| 				);
 | |
| 			}
 | |
| 
 | |
| 			if ($status != 0) {
 | |
| 				return;
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		/*
 | |
| 		 * We have now established a relationship with the other site.
 | |
| 		 * Let's make our own personal copy of their profile photo so we don't have
 | |
| 		 * to always load it from their site.
 | |
| 		 *
 | |
| 		 * We will also update the contact record with the nature and scope of the relationship.
 | |
| 		 */
 | |
| 		Contact::updateAvatar($contact['photo'], $uid, $contact_id);
 | |
| 
 | |
| 		logger('dfrn_confirm: confirm - imported photos');
 | |
| 
 | |
| 		if ($network === NETWORK_DFRN) {
 | |
| 			$new_relation = CONTACT_IS_FOLLOWER;
 | |
| 			if (($relation == CONTACT_IS_SHARING) || ($duplex)) {
 | |
| 				$new_relation = CONTACT_IS_FRIEND;
 | |
| 			}
 | |
| 
 | |
| 			if (($relation == CONTACT_IS_SHARING) && ($duplex)) {
 | |
| 				$duplex = 0;
 | |
| 			}
 | |
| 
 | |
| 			$r = q("UPDATE `contact` SET `rel` = %d,
 | |
| 				`name-date` = '%s',
 | |
| 				`uri-date` = '%s',
 | |
| 				`blocked` = 0,
 | |
| 				`pending` = 0,
 | |
| 				`duplex` = %d,
 | |
| 				`hidden` = %d,
 | |
| 				`network` = '%s' WHERE `id` = %d
 | |
| 			",
 | |
| 				intval($new_relation),
 | |
| 				dbesc(DateTimeFormat::utcNow()),
 | |
| 				dbesc(DateTimeFormat::utcNow()),
 | |
| 				intval($duplex),
 | |
| 				intval($hidden),
 | |
| 				dbesc(NETWORK_DFRN),
 | |
| 				intval($contact_id)
 | |
| 			);
 | |
| 		} else {
 | |
| 			// $network !== NETWORK_DFRN
 | |
| 			$network = defaults($contact, 'network', NETWORK_OSTATUS);
 | |
| 
 | |
| 			$arr = Probe::uri($contact['url']);
 | |
| 
 | |
| 			$notify  = defaults($contact, 'notify' , $arr['notify']);
 | |
| 			$poll    = defaults($contact, 'poll'   , $arr['poll']);
 | |
| 
 | |
| 			$addr = $arr['addr'];
 | |
| 
 | |
| 			$new_relation = $contact['rel'];
 | |
| 			$writable = $contact['writable'];
 | |
| 
 | |
| 			if ($network === NETWORK_DIASPORA) {
 | |
| 				if ($duplex) {
 | |
| 					$new_relation = CONTACT_IS_FRIEND;
 | |
| 				} else {
 | |
| 					$new_relation = CONTACT_IS_FOLLOWER;
 | |
| 				}
 | |
| 
 | |
| 				if ($new_relation != CONTACT_IS_FOLLOWER) {
 | |
| 					$writable = 1;
 | |
| 				}
 | |
| 			}
 | |
| 
 | |
| 			q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d",
 | |
| 				intval($intro_id),
 | |
| 				intval($uid)
 | |
| 			);
 | |
| 
 | |
| 			$r = q("UPDATE `contact` SET `name-date` = '%s',
 | |
| 				`uri-date` = '%s',
 | |
| 				`addr` = '%s',
 | |
| 				`notify` = '%s',
 | |
| 				`poll` = '%s',
 | |
| 				`blocked` = 0,
 | |
| 				`pending` = 0,
 | |
| 				`network` = '%s',
 | |
| 				`writable` = %d,
 | |
| 				`hidden` = %d,
 | |
| 				`rel` = %d
 | |
| 				WHERE `id` = %d
 | |
| 			",
 | |
| 				dbesc(DateTimeFormat::utcNow()),
 | |
| 				dbesc(DateTimeFormat::utcNow()),
 | |
| 				dbesc($addr),
 | |
| 				dbesc($notify),
 | |
| 				dbesc($poll),
 | |
| 				dbesc($network),
 | |
| 				intval($writable),
 | |
| 				intval($hidden),
 | |
| 				intval($new_relation),
 | |
| 				intval($contact_id)
 | |
| 			);
 | |
| 		}
 | |
| 
 | |
| 		/// @TODO is DBM::is_result() working here?
 | |
| 		if (!DBM::is_result($r)) {
 | |
| 			notice(L10n::t('Unable to set contact photo.') . EOL);
 | |
| 		}
 | |
| 
 | |
| 		// reload contact info
 | |
| 		$contact = dba::selectFirst('contact', [], ['id' => $contact_id]);
 | |
| 		if ((isset($new_relation) && $new_relation == CONTACT_IS_FRIEND)) {
 | |
| 			if (DBM::is_result($contact) && ($contact['network'] === NETWORK_DIASPORA)) {
 | |
| 				$ret = Diaspora::sendShare($user, $contact);
 | |
| 				logger('share returns: ' . $ret);
 | |
| 			}
 | |
| 
 | |
| 			// Send a new friend post if we are allowed to...
 | |
| 			$profile = dba::selectFirst('profile', ['hide-friends'], ['is-default' => true, 'uid' => $uid]);
 | |
| 			if (x($profile, 'hide-friends') === 0 && $activity && !$hidden) {
 | |
| 				$self = dba::selectFirst('contact', [], ['self' => true, 'uid' => $uid]);
 | |
| 				if (DBM::is_result($self)) {
 | |
| 					$arr = [];
 | |
| 					$arr['guid'] = get_guid(32);
 | |
| 					$arr['uri'] = $arr['parent-uri'] = item_new_uri($a->get_hostname(), $uid);
 | |
| 					$arr['uid'] = $uid;
 | |
| 					$arr['contact-id'] = $self['id'];
 | |
| 					$arr['wall'] = 1;
 | |
| 					$arr['type'] = 'wall';
 | |
| 					$arr['gravity'] = 0;
 | |
| 					$arr['origin'] = 1;
 | |
| 					$arr['author-name']   = $arr['owner-name']   = $self['name'];
 | |
| 					$arr['author-link']   = $arr['owner-link']   = $self['url'];
 | |
| 					$arr['author-avatar'] = $arr['owner-avatar'] = $self['thumb'];
 | |
| 
 | |
| 					$A = '[url=' . $self['url'] . ']' . $self['name'] . '[/url]';
 | |
| 					$B = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
 | |
| 					$BPhoto = '[url=' . $contact['url'] . ']' . '[img]' . $contact['thumb'] . '[/img][/url]';
 | |
| 
 | |
| 					$arr['verb'] = ACTIVITY_FRIEND;
 | |
| 					$arr['object-type'] = ACTIVITY_OBJ_PERSON;
 | |
| 					$arr['body'] = L10n::t('%1$s is now friends with %2$s', $A, $B) . "\n\n\n" . $BPhoto;
 | |
| 
 | |
| 					$arr['object'] = '<object><type>' . ACTIVITY_OBJ_PERSON . '</type><title>' . $contact['name'] . '</title>'
 | |
| 						. '<id>' . $contact['url'] . '/' . $contact['name'] . '</id>';
 | |
| 					$arr['object'] .= '<link>' . xmlify('<link rel="alternate" type="text/html" href="' . $contact['url'] . '" />' . "\n");
 | |
| 					$arr['object'] .= xmlify('<link rel="photo" type="image/jpeg" href="' . $contact['thumb'] . '" />' . "\n");
 | |
| 					$arr['object'] .= '</link></object>' . "\n";
 | |
| 
 | |
| 					$arr['allow_cid'] = $user['allow_cid'];
 | |
| 					$arr['allow_gid'] = $user['allow_gid'];
 | |
| 					$arr['deny_cid']  = $user['deny_cid'];
 | |
| 					$arr['deny_gid']  = $user['deny_gid'];
 | |
| 
 | |
| 					$i = Item::insert($arr);
 | |
| 					if ($i) {
 | |
| 						Worker::add(PRIORITY_HIGH, "Notifier", "activity", $i);
 | |
| 					}
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		Group::addMember(User::getDefaultGroup($uid, $contact["network"]), $contact['id']);
 | |
| 
 | |
| 		// Let's send our user to the contact editor in case they want to
 | |
| 		// do anything special with this new friend.
 | |
| 		if ($handsfree === null) {
 | |
| 			goaway(System::baseUrl() . '/contacts/' . intval($contact_id));
 | |
| 		} else {
 | |
| 			return;
 | |
| 		}
 | |
| 		//NOTREACHED
 | |
| 	}
 | |
| 
 | |
| 	/*
 | |
| 	 * End of Scenario 1. [Local confirmation of remote friend request].
 | |
| 	 *
 | |
| 	 * Begin Scenario 2. This is the remote response to the above scenario.
 | |
| 	 * This will take place on the site that originally initiated the friend request.
 | |
| 	 * In the section above where the confirming party makes a POST and
 | |
| 	 * retrieves xml status information, they are communicating with the following code.
 | |
| 	 */
 | |
| 	if (x($_POST, 'source_url')) {
 | |
| 		// We are processing an external confirmation to an introduction created by our user.
 | |
| 		$public_key =         defaults($_POST, 'public_key', '');
 | |
| 		$dfrn_id    = hex2bin(defaults($_POST, 'dfrn_id'   , ''));
 | |
| 		$source_url = hex2bin(defaults($_POST, 'source_url', ''));
 | |
| 		$aes_key    =         defaults($_POST, 'aes_key'   , '');
 | |
| 		$duplex     =  intval(defaults($_POST, 'duplex'    , 0));
 | |
| 		$page       =  intval(defaults($_POST, 'page'      , 0));
 | |
| 
 | |
| 		$forum = (($page == 1) ? 1 : 0);
 | |
| 		$prv   = (($page == 2) ? 1 : 0);
 | |
| 
 | |
| 		logger('dfrn_confirm: requestee contacted: ' . $node);
 | |
| 
 | |
| 		logger('dfrn_confirm: request: POST=' . print_r($_POST, true), LOGGER_DATA);
 | |
| 
 | |
| 		// If $aes_key is set, both of these items require unpacking from the hex transport encoding.
 | |
| 
 | |
| 		if (x($aes_key)) {
 | |
| 			$aes_key = hex2bin($aes_key);
 | |
| 			$public_key = hex2bin($public_key);
 | |
| 		}
 | |
| 
 | |
| 		// Find our user's account
 | |
| 		$user = dba::selectFirst('user', [], ['nickname' => $node]);
 | |
| 		if (!DBM::is_result($user)) {
 | |
| 			$message = L10n::t('No user record found for \'%s\' ', $node);
 | |
| 			System::xmlExit(3, $message); // failure
 | |
| 			// NOTREACHED
 | |
| 		}
 | |
| 
 | |
| 		$my_prvkey = $user['prvkey'];
 | |
| 		$local_uid = $user['uid'];
 | |
| 
 | |
| 
 | |
| 		if (!strstr($my_prvkey, 'PRIVATE KEY')) {
 | |
| 			$message = L10n::t('Our site encryption key is apparently messed up.');
 | |
| 			System::xmlExit(3, $message);
 | |
| 		}
 | |
| 
 | |
| 		// verify everything
 | |
| 
 | |
| 		$decrypted_source_url = "";
 | |
| 		openssl_private_decrypt($source_url, $decrypted_source_url, $my_prvkey);
 | |
| 
 | |
| 
 | |
| 		if (!strlen($decrypted_source_url)) {
 | |
| 			$message = L10n::t('Empty site URL was provided or URL could not be decrypted by us.');
 | |
| 			System::xmlExit(3, $message);
 | |
| 			// NOTREACHED
 | |
| 		}
 | |
| 
 | |
| 		$contact = dba::selectFirst('contact', [], ['url' => $decrypted_source_url, 'uid' => $local_uid]);
 | |
| 		if (!DBM::is_result($contact)) {
 | |
| 			if (strstr($decrypted_source_url, 'http:')) {
 | |
| 				$newurl = str_replace('http:', 'https:', $decrypted_source_url);
 | |
| 			} else {
 | |
| 				$newurl = str_replace('https:', 'http:', $decrypted_source_url);
 | |
| 			}
 | |
| 
 | |
| 			$contact = dba::selectFirst('contact', [], ['url' => $newurl, 'uid' => $local_uid]);
 | |
| 			if (!DBM::is_result($contact)) {
 | |
| 				// this is either a bogus confirmation (?) or we deleted the original introduction.
 | |
| 				$message = L10n::t('Contact record was not found for you on our site.');
 | |
| 				System::xmlExit(3, $message);
 | |
| 				return; // NOTREACHED
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		$relation = $contact['rel'];
 | |
| 
 | |
| 		// Decrypt all this stuff we just received
 | |
| 
 | |
| 		$foreign_pubkey = $contact['site-pubkey'];
 | |
| 		$dfrn_record = $contact['id'];
 | |
| 
 | |
| 		if (!$foreign_pubkey) {
 | |
| 			$message = L10n::t('Site public key not available in contact record for URL %s.', $decrypted_source_url);
 | |
| 			System::xmlExit(3, $message);
 | |
| 		}
 | |
| 
 | |
| 		$decrypted_dfrn_id = "";
 | |
| 		openssl_public_decrypt($dfrn_id, $decrypted_dfrn_id, $foreign_pubkey);
 | |
| 
 | |
| 		if (strlen($aes_key)) {
 | |
| 			$decrypted_aes_key = "";
 | |
| 			openssl_private_decrypt($aes_key, $decrypted_aes_key, $my_prvkey);
 | |
| 			$dfrn_pubkey = openssl_decrypt($public_key, 'AES-256-CBC', $decrypted_aes_key);
 | |
| 		} else {
 | |
| 			$dfrn_pubkey = $public_key;
 | |
| 		}
 | |
| 
 | |
| 		if (dba::exists('contact', ['dfrn-id' => $decrypted_dfrn_id])) {
 | |
| 			$message = L10n::t('The ID provided by your system is a duplicate on our system. It should work if you try again.');
 | |
| 			System::xmlExit(1, $message); // Birthday paradox - duplicate dfrn-id
 | |
| 			// NOTREACHED
 | |
| 		}
 | |
| 
 | |
| 		$r = q("UPDATE `contact` SET `dfrn-id` = '%s', `pubkey` = '%s' WHERE `id` = %d",
 | |
| 			dbesc($decrypted_dfrn_id),
 | |
| 			dbesc($dfrn_pubkey),
 | |
| 			intval($dfrn_record)
 | |
| 		);
 | |
| 		if (!DBM::is_result($r)) {
 | |
| 			$message = L10n::t('Unable to set your contact credentials on our system.');
 | |
| 			System::xmlExit(3, $message);
 | |
| 		}
 | |
| 
 | |
| 		// It's possible that the other person also requested friendship.
 | |
| 		// If it is a duplex relationship, ditch the issued-id if one exists.
 | |
| 
 | |
| 		if ($duplex) {
 | |
| 			q("UPDATE `contact` SET `issued-id` = '' WHERE `id` = %d",
 | |
| 				intval($dfrn_record)
 | |
| 			);
 | |
| 		}
 | |
| 
 | |
| 		// We're good but now we have to scrape the profile photo and send notifications.
 | |
| 		$contact = dba::selectFirst('contact', ['photo'], ['id' => $dfrn_record]);
 | |
| 		if (DBM::is_result($contact)) {
 | |
| 			$photo = $contact['photo'];
 | |
| 		} else {
 | |
| 			$photo = System::baseUrl() . '/images/person-175.jpg';
 | |
| 		}
 | |
| 
 | |
| 		Contact::updateAvatar($photo, $local_uid, $dfrn_record);
 | |
| 
 | |
| 		logger('dfrn_confirm: request - photos imported');
 | |
| 
 | |
| 		$new_relation = CONTACT_IS_SHARING;
 | |
| 		if (($relation == CONTACT_IS_FOLLOWER) || ($duplex)) {
 | |
| 			$new_relation = CONTACT_IS_FRIEND;
 | |
| 		}
 | |
| 
 | |
| 		if (($relation == CONTACT_IS_FOLLOWER) && ($duplex)) {
 | |
| 			$duplex = 0;
 | |
| 		}
 | |
| 
 | |
| 		$r = q("UPDATE `contact` SET
 | |
| 			`rel` = %d,
 | |
| 			`name-date` = '%s',
 | |
| 			`uri-date` = '%s',
 | |
| 			`blocked` = 0,
 | |
| 			`pending` = 0,
 | |
| 			`duplex` = %d,
 | |
| 			`forum` = %d,
 | |
| 			`prv` = %d,
 | |
| 			`network` = '%s' WHERE `id` = %d
 | |
| 		",
 | |
| 			intval($new_relation),
 | |
| 			dbesc(DateTimeFormat::utcNow()),
 | |
| 			dbesc(DateTimeFormat::utcNow()),
 | |
| 			intval($duplex),
 | |
| 			intval($forum),
 | |
| 			intval($prv),
 | |
| 			dbesc(NETWORK_DFRN),
 | |
| 			intval($dfrn_record)
 | |
| 		);
 | |
| 		if (!DBM::is_result($r)) {	// indicates schema is messed up or total db failure
 | |
| 			$message = L10n::t('Unable to update your contact profile details on our system');
 | |
| 			System::xmlExit(3, $message);
 | |
| 		}
 | |
| 
 | |
| 		// Otherwise everything seems to have worked and we are almost done. Yay!
 | |
| 		// Send an email notification
 | |
| 
 | |
| 		logger('dfrn_confirm: request: info updated');
 | |
| 
 | |
| 		$combined = null;
 | |
| 		$r = q("SELECT `contact`.*, `user`.*
 | |
| 			FROM `contact`
 | |
| 			LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
 | |
| 			WHERE `contact`.`id` = %d
 | |
| 			LIMIT 1",
 | |
| 			intval($dfrn_record)
 | |
| 		);
 | |
| 		if (DBM::is_result($r)) {
 | |
| 			$combined = $r[0];
 | |
| 
 | |
| 			if ($combined['notify-flags'] & NOTIFY_CONFIRM) {
 | |
| 				$mutual = ($new_relation == CONTACT_IS_FRIEND);
 | |
| 				notification([
 | |
| 					'type'         => NOTIFY_CONFIRM,
 | |
| 					'notify_flags' => $combined['notify-flags'],
 | |
| 					'language'     => $combined['language'],
 | |
| 					'to_name'      => $combined['username'],
 | |
| 					'to_email'     => $combined['email'],
 | |
| 					'uid'          => $combined['uid'],
 | |
| 					'link'         => System::baseUrl() . '/contacts/' . $dfrn_record,
 | |
| 					'source_name'  => ((strlen(stripslashes($combined['name']))) ? stripslashes($combined['name']) : L10n::t('[Name Withheld]')),
 | |
| 					'source_link'  => $combined['url'],
 | |
| 					'source_photo' => $combined['photo'],
 | |
| 					'verb'         => ($mutual?ACTIVITY_FRIEND:ACTIVITY_FOLLOW),
 | |
| 					'otype'        => 'intro'
 | |
| 				]);
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		// Send a new friend post if we are allowed to...
 | |
| 		if ($page && intval(PConfig::get($local_uid, 'system', 'post_joingroup'))) {
 | |
| 			$profile = dba::selectFirst('profile', ['hide-friends'], ['is-default' => true, 'uid' => $local_uid]);
 | |
| 			if (x($profile, 'hide-friends') === 0) {
 | |
| 				$self = dba::selectFirst('contact', [], ['self' => true, 'uid' => $local_uid]);
 | |
| 				if (DBM::is_result($self)) {
 | |
| 					$arr = [];
 | |
| 					$arr['uri'] = $arr['parent-uri'] = item_new_uri($a->get_hostname(), $local_uid);
 | |
| 					$arr['uid'] = $local_uid;
 | |
| 					$arr['contact-id'] = $self['id'];
 | |
| 					$arr['wall'] = 1;
 | |
| 					$arr['type'] = 'wall';
 | |
| 					$arr['gravity'] = 0;
 | |
| 					$arr['origin'] = 1;
 | |
| 					$arr['author-name']   = $arr['owner-name']   = $self['name'];
 | |
| 					$arr['author-link']   = $arr['owner-link']   = $self['url'];
 | |
| 					$arr['author-avatar'] = $arr['owner-avatar'] = $self['thumb'];
 | |
| 
 | |
| 					$A = '[url=' . $self['url'] . ']' . $self['name'] . '[/url]';
 | |
| 					$B = '[url=' . $combined['url'] . ']' . $combined['name'] . '[/url]';
 | |
| 					$BPhoto = '[url=' . $combined['url'] . ']' . '[img]' . $combined['thumb'] . '[/img][/url]';
 | |
| 
 | |
| 					$arr['verb'] = ACTIVITY_JOIN;
 | |
| 					$arr['object-type'] = ACTIVITY_OBJ_GROUP;
 | |
| 					$arr['body'] = L10n::t('%1$s has joined %2$s', $A, $B) . "\n\n\n" . $BPhoto;
 | |
| 					$arr['object'] = '<object><type>' . ACTIVITY_OBJ_GROUP . '</type><title>' . $combined['name'] . '</title>'
 | |
| 						. '<id>' . $combined['url'] . '/' . $combined['name'] . '</id>';
 | |
| 					$arr['object'] .= '<link>' . xmlify('<link rel="alternate" type="text/html" href="' . $combined['url'] . '" />' . "\n");
 | |
| 					$arr['object'] .= xmlify('<link rel="photo" type="image/jpeg" href="' . $combined['thumb'] . '" />' . "\n");
 | |
| 					$arr['object'] .= '</link></object>' . "\n";
 | |
| 
 | |
| 					$arr['allow_cid'] = $user['allow_cid'];
 | |
| 					$arr['allow_gid'] = $user['allow_gid'];
 | |
| 					$arr['deny_cid']  = $user['deny_cid'];
 | |
| 					$arr['deny_gid']  = $user['deny_gid'];
 | |
| 
 | |
| 					$i = Item::insert($arr);
 | |
| 					if ($i) {
 | |
| 						Worker::add(PRIORITY_HIGH, "Notifier", "activity", $i);
 | |
| 					}
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 		System::xmlExit(0); // Success
 | |
| 		return; // NOTREACHED
 | |
| 		////////////////////// End of this scenario ///////////////////////////////////////////////
 | |
| 	}
 | |
| 
 | |
| 	// somebody arrived here by mistake or they are fishing. Send them to the homepage.
 | |
| 	goaway(System::baseUrl());
 | |
| 	// NOTREACHED
 | |
| }
 |