<?php
+/*
+ * 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.
+ *
+ */
+
+require_once('include/enotify.php');
+
+function dfrn_confirm_post(&$a,$handsfree = 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'];
+ $a->interactive = false; // notice() becomes a no-op since nobody is there to see it
+ }
+ else {
+ if($a->argc > 1)
+ $node = $a->argv[1];
+ }
-function dfrn_confirm_post(&$a) {
+ /**
+ *
+ * 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($a->argc > 1)
- $node = $a->argv[1];
+ if(! x($_POST,'source_url')) {
- if(x($_POST,'source_url')) {
+ $uid = ((is_array($handsfree)) ? $handsfree['uid'] : local_user());
- // We are processing an external confirmation to an introduction created by our user.
+ if(! $uid) {
+ notice( t('Permission denied.') . EOL );
+ return;
+ }
- $public_key = $_POST['public_key'];
- $dfrn_id = $_POST['dfrn_id'];
- $source_url = $_POST['source_url'];
- $aes_key = $_POST['aes_key'];
- $duplex = $_POST['duplex'];
- $version_id = $_POST['dfrn_version'];
+ $user = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
+ intval($uid)
+ );
+ if(! $user) {
+ notice( t('Profile not found.') . EOL );
+ return;
+ }
- // Find our user's account
- $r = q("SELECT * FROM `user` WHERE `nickname` = '%s' LIMIT 1",
- dbesc($node));
+ // 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'];
+ $hidden = ((array_key_exists('hidden',$handsfree)) ? intval($handsfree['hidden']) : 0 );
+ $activity = ((array_key_exists('activity',$handsfree)) ? intval($handsfree['activity']) : 0 );
+ }
+ else {
+ $dfrn_id = ((x($_POST,'dfrn_id')) ? notags(trim($_POST['dfrn_id'])) : "");
+ $intro_id = ((x($_POST,'intro_id')) ? intval($_POST['intro_id']) : 0 );
+ $duplex = ((x($_POST,'duplex')) ? intval($_POST['duplex']) : 0 );
+ $cid = ((x($_POST,'contact_id')) ? intval($_POST['contact_id']) : 0 );
+ $hidden = ((x($_POST,'hidden')) ? intval($_POST['hidden']) : 0 );
+ $activity = ((x($_POST,'activity')) ? intval($_POST['activity']) : 0 );
+ }
+
+ /**
+ *
+ * Ensure that dfrn_id has precedence when we go to find the contact record.
+ * We only want to search based on contact id if there is no dfrn_id,
+ * e.g. for OStatus network followers.
+ *
+ */
+
+ if(strlen($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(! count($r)) {
- xml_status(3); // failure
- return; // NOTREACHED
+ logger('Contact not found in DB.');
+ notice( t('Contact not found.') . EOL );
+ notice( t('This may occasionally happen if contact was requested by both persons and it has already been approved.') . EOL );
+ return;
}
- $my_prvkey = $r[0]['prvkey'];
- $local_uid = $r[0]['uid'];
+ $contact = $r[0];
- // verify everything
+ $contact_id = $contact['id'];
+ $relation = $contact['rel'];
+ $site_pubkey = $contact['site-pubkey'];
+ $dfrn_confirm = $contact['confirm'];
+ $aes_allow = $contact['aes_allow'];
- $decrypted_source_url = "";
- openssl_private_decrypt($source_url,$decrypted_source_url,$my_prvkey);
+ $network = ((strlen($contact['issued-id'])) ? NETWORK_DFRN : NETWORK_OSTATUS);
+ if($contact['network'])
+ $network = $contact['network'];
- $ret = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
- dbesc($decrypted_source_url),
- intval($local_uid));
+ if($network === NETWORK_DFRN) {
- if(! count($ret)) {
- // this is either a bogus confirmation or we deleted the original introduction.
- xml_status(3);
- return; // NOTREACHED
- }
+ /**
+ *
+ * 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.
+ *
+ */
+ require_once('include/crypto.php');
- $relation = $ret[0]['rel'];
+ $res = new_keypair(4096);
- // Decrypt all this stuff we just received
- $foreign_pubkey = $ret[0]['site-pubkey'];
- $dfrn_record = $ret[0]['id'];
+ $private_key = $res['prvkey'];
+ $public_key = $res['pubkey'];
- $decrypted_dfrn_id = "";
- openssl_public_decrypt($dfrn_id,$decrypted_dfrn_id,$foreign_pubkey);
+ // Save the private key. Send them the public key.
- 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;
- }
+ $r = q("UPDATE `contact` SET `prvkey` = '%s' WHERE `id` = %d AND `uid` = %d",
+ dbesc($private_key),
+ intval($contact_id),
+ intval($uid)
+ );
- $r = q("SELECT * FROM `contact` WHERE `dfrn-id` = '%s' LIMIT 1",
- dbesc($decrypted_dfrn_id),
- intval($local_uid)
- );
- if(count($r)) {
- xml_status(1); // Birthday paradox - duplicate dfrn-id
- return; // NOTREACHED
- }
+ $params = array();
- $r = q("UPDATE `contact` SET `dfrn-id` = '%s', `pubkey` = '%s' WHERE `id` = %d LIMIT 1",
- dbesc($decrypted_dfrn_id),
- dbesc($dfrn_pubkey),
- intval($dfrn_record)
- );
- if($r) {
+ /**
+ *
+ * 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.
+ *
+ */
- // We're good but now we have to scrape the profile photo and send notifications.
+ $src_aes_key = random_string();
- require_once("Photo.php");
+ $result = '';
+ openssl_private_encrypt($dfrn_id,$result,$user[0]['prvkey']);
- $photo_failure = false;
+ $params['dfrn_id'] = bin2hex($result);
+ $params['public_key'] = $public_key;
- $r = q("SELECT `photo` FROM `contact` WHERE `id` = %d LIMIT 1",
- intval($dfrn_record));
- if(count($r)) {
- $filename = basename($r[0]['photo']);
- $img_str = fetch_url($r[0]['photo'],true);
- $img = new Photo($img_str);
- if($img) {
+ $my_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname'];
- $img->scaleImageSquare(175);
-
- $hash = photo_new_resource();
+ openssl_public_encrypt($my_url, $params['source_url'], $site_pubkey);
+ $params['source_url'] = bin2hex($params['source_url']);
- $r = $img->store($local_uid, $dfrn_record, $hash, $filename, t('Contact Photos') , 4);
+ if($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',$src_aes_key));
+ }
- if($r === false)
- $photo_failure = true;
-
- $img->scaleImage(80);
- $r = $img->store($local_uid, $dfrn_record, $hash, $filename, t('Contact Photos') , 5);
+ $params['dfrn_version'] = DFRN_PROTOCOL_VERSION ;
+ if($duplex == 1)
+ $params['duplex'] = 1;
- if($r === false)
- $photo_failure = true;
+ if($user[0]['page-flags'] == PAGE_COMMUNITY)
+ $params['page'] = 1;
+ if($user[0]['page-flags'] == PAGE_PRVGROUP)
+ $params['page'] = 2;
- $photo = $a->get_baseurl() . '/photo/' . $hash . '-4.jpg';
- $thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.jpg';
- }
- else
- $photo_failure = true;
+ 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.
+ *
+ */
+
+ $a->config['system']['curl_timeout'] = 120;
+
+ $res = post_url($dfrn_confirm,$params);
+
+ 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 $status is going to be zero, which indicates success.
+ // We can hardly call this a success.
+
+ notice( t('Response from remote site was not understood.') . EOL);
+ return;
+ }
+
+ if(strlen($leading_junk) && get_config('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( t('Unexpected response from remote site: ') . EOL . $leading_junk . EOL );
+ }
+
+ if(stristr($res, "<status")===false) {
+ // wrong xml! stop here!
+ notice( t('Unexpected response from remote site: ') . EOL . htmlspecialchars($res) . EOL );
+ return;
}
- else
- $photo_failure = true;
- if($photo_failure) {
- $photo = $a->get_baseurl() . '/images/default-profile.jpg';
- $thumb = $a->get_baseurl() . '/images/default-profile-sm.jpg';
+ $xml = parse_xml_string($res);
+ $status = (int) $xml->status;
+ $message = unxmlify($xml->message); // human readable text of what may have gone wrong.
+ switch($status) {
+ case 0:
+ info( t("Confirmation completed successfully.") . EOL);
+ if(strlen($message))
+ notice( t('Remote site reported: ') . $message . EOL);
+ break;
+ case 1:
+ // birthday paradox - generate new dfrn-id and fall through.
+ $new_dfrn_id = random_string();
+ $r = q("UPDATE contact SET `issued-id` = '%s' WHERE `id` = %d AND `uid` = %d",
+ dbesc($new_dfrn_id),
+ intval($contact_id),
+ intval($uid)
+ );
+
+ case 2:
+ notice( t("Temporary failure. Please wait and try again.") . EOL);
+ if(strlen($message))
+ notice( t('Remote site reported: ') . $message . EOL);
+ break;
+
+
+ case 3:
+ notice( t("Introduction failed or was revoked.") . EOL);
+ if(strlen($message))
+ notice( t('Remote site reported: ') . $message . EOL);
+ break;
+ }
+
+ if(($status == 0) && ($intro_id)) {
+
+ // Success. Delete the notification.
+
+ $r = q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d",
+ intval($intro_id),
+ intval($uid)
+ );
+
}
- $new_relation = REL_FAN;
- if(($relation == REL_VIP) || ($duplex))
- $new_relation = REL_BUD;
-
- $r = q("UPDATE `contact` SET
- `photo` = '%s',
- `thumb` = '%s',
- `rel` = %d,
- `name-date` = '%s',
- `uri-date` = '%s',
- `avatar-date` = '%s',
- `blocked` = 0,
+ if($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.
+ *
+ */
+
+ require_once('include/Photo.php');
+
+ $photos = import_profile_photo($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;
+
+ $r = q("UPDATE `contact` SET
+ `photo` = '%s',
+ `thumb` = '%s',
+ `micro` = '%s',
+ `rel` = %d,
+ `name-date` = '%s',
+ `uri-date` = '%s',
+ `avatar-date` = '%s',
+ `blocked` = 0,
`pending` = 0,
- `duplex` = %d,
- `network` = 'dfrn' WHERE `id` = %d LIMIT 1
+ `duplex` = %d,
+ `hidden` = %d,
+ `network` = '%s' WHERE `id` = %d
",
- dbesc($photo),
- dbesc($thumb),
+ dbesc($photos[0]),
+ dbesc($photos[1]),
+ dbesc($photos[2]),
intval($new_relation),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
intval($duplex),
- intval($dfrn_record)
+ intval($hidden),
+ dbesc(NETWORK_DFRN),
+ intval($contact_id)
);
- if($r === false)
- notice( t("Unable to set contact photo info.") . EOL);
-
- // Otherwise everything seems to have worked and we are almost done. Yay!
- // Send an email notification
+ }
+ else {
- $r = q("SELECT * FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
- WHERE `contact`.`id` = %d LIMIT 1",
- intval($dfrn_record)
- );
- if((count($r)) && ($r[0]['notify-flags'] & NOTIFY_CONFIRM)) {
-
- $tpl = (($new_relation == $REL_BUD)
- ? file_get_contents('view/friend_complete_eml.tpl');
- : file_get_contents('view/intro_complete_eml.tpl'));
-
- $email_tpl = replace_macros($tpl, array(
- '$sitename' => $a->config['sitename'],
- '$siteurl' => $a->get_baseurl(),
- '$username' => $r[0]['username'],
- '$email' => $r[0]['email'],
- '$fn' => $r[0]['name'],
- '$dfrn_url' => $r[0]['url'],
- '$uid' => $newuid )
- );
-
- $res = mail($r[0]['email'], t("Connection accepted at ") . $a->config['sitename'],
- $email_tpl, 'From: ' . t('Administrator') . '@' . $_SERVER[SERVER_NAME] );
- if(!$res) {
- notice( t("Email notification failed.") . EOL );
+ // $network !== NETWORK_DFRN
+
+ $network = (($contact['network']) ? $contact['network'] : NETWORK_OSTATUS);
+ $notify = (($contact['notify']) ? $contact['notify'] : '');
+ $poll = (($contact['poll']) ? $contact['poll'] : '');
+
+ if((! $contact['notify']) || (! $contact['poll'])) {
+ $arr = lrdd($contact['url']);
+ if(count($arr)) {
+ foreach($arr as $link) {
+ if($link['@attributes']['rel'] === 'salmon')
+ $notify = $link['@attributes']['href'];
+ if($link['@attributes']['rel'] === NAMESPACE_FEED)
+ $poll = $link['@attributes']['href'];
+ }
}
}
- xml_status(0); // Success
- return; // NOTREACHED
- }
- else {
- xml_status(2); // Hopefully temporary problem that can be retried.
- }
- return; // NOTREACHED
- ////////////////////// End of this scenario ///////////////////////////////////////////////
- }
- else {
+ $new_relation = $contact['rel'];
+ $writable = $contact['writable'];
- // We are processing a local confirmation initiated on this system by our user to an external introduction.
+ if($network === NETWORK_DIASPORA) {
+ if($duplex)
+ $new_relation = CONTACT_IS_FRIEND;
+ else
+ $new_relation = CONTACT_IS_FOLLOWER;
- $uid = get_uid();
+ if($new_relation != CONTACT_IS_FOLLOWER)
+ $writable = 1;
+ }
- if(! $uid) {
- notice( t("Permission denied.") . EOL );
- return;
- }
-
- $dfrn_id = ((x($_POST,'dfrn_id')) ? notags(trim($_POST['dfrn_id'])) : "");
- $intro_id = intval($_POST['intro_id']);
- $duplex = intval($_POST['duplex']);
-
- $r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' AND `uid` = %d LIMIT 1",
- dbesc($dfrn_id),
+ $r = q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d",
+ intval($intro_id),
intval($uid)
- );
+ );
- if(! count($r)) {
- notice( t('Node does not exist.') . EOL );
- return;
+
+ $r = q("UPDATE `contact` SET `photo` = '%s',
+ `thumb` = '%s',
+ `micro` = '%s',
+ `name-date` = '%s',
+ `uri-date` = '%s',
+ `avatar-date` = '%s',
+ `notify` = '%s',
+ `poll` = '%s',
+ `blocked` = 0,
+ `pending` = 0,
+ `network` = '%s',
+ `writable` = %d,
+ `hidden` = %d,
+ `rel` = %d
+ WHERE `id` = %d
+ ",
+ dbesc($photos[0]),
+ dbesc($photos[1]),
+ dbesc($photos[2]),
+ dbesc(datetime_convert()),
+ dbesc(datetime_convert()),
+ dbesc(datetime_convert()),
+ dbesc($notify),
+ dbesc($poll),
+ dbesc($network),
+ intval($writable),
+ intval($hidden),
+ intval($new_relation),
+ intval($contact_id)
+ );
}
- $contact_id = $r[0]['id'];
- $relation = $r[0]['rel'];
- $site_pubkey = $r[0]['site-pubkey'];
- $dfrn_confirm = $r[0]['confirm'];
- $aes_allow = $r[0]['aes_allow'];
+ if($r === false)
+ notice( t('Unable to set contact photo.') . EOL);
+
+ // reload contact info
- $res = openssl_pkey_new(array(
- 'digest_alg' => 'whirlpool',
- 'private_key_bits' => 4096,
- 'encrypt_key' => false )
+ $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
+ intval($contact_id)
);
+ if(count($r))
+ $contact = $r[0];
+ else
+ $contact = null;
+
+
+ if((isset($new_relation) && $new_relation == CONTACT_IS_FRIEND)) {
+
+ if(($contact) && ($contact['network'] === NETWORK_DIASPORA)) {
+ require_once('include/diaspora.php');
+ $ret = diaspora_share($user[0],$r[0]);
+ logger('mod_follow: diaspora_share returns: ' . $ret);
+ }
+
+ // Send a new friend post if we are allowed to...
+
+ $r = q("SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
+ intval($uid)
+ );
+
+ if((count($r)) && ($r[0]['hide-friends'] == 0) && ($activity) && (! $hidden)) {
+ require_once('include/items.php');
- $private_key = '';
+ $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
+ intval($uid)
+ );
- openssl_pkey_export($res, $private_key);
+ if(count($self)) {
+
+ $arr = array();
+ $arr['uri'] = $arr['parent-uri'] = item_new_uri($a->get_hostname(), $uid);
+ $arr['uid'] = $uid;
+ $arr['contact-id'] = $self[0]['id'];
+ $arr['wall'] = 1;
+ $arr['type'] = 'wall';
+ $arr['gravity'] = 0;
+ $arr['origin'] = 1;
+ $arr['author-name'] = $arr['owner-name'] = $self[0]['name'];
+ $arr['author-link'] = $arr['owner-link'] = $self[0]['url'];
+ $arr['author-avatar'] = $arr['owner-avatar'] = $self[0]['thumb'];
+
+ $A = '[url=' . $self[0]['url'] . ']' . $self[0]['name'] . '[/url]';
+ $APhoto = '[url=' . $self[0]['url'] . ']' . '[img]' . $self[0]['thumb'] . '[/img][/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;
+ $arr['body'] = sprintf( t('%1$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['last-child'] = 1;
+
+ $arr['allow_cid'] = $user[0]['allow_cid'];
+ $arr['allow_gid'] = $user[0]['allow_gid'];
+ $arr['deny_cid'] = $user[0]['deny_cid'];
+ $arr['deny_gid'] = $user[0]['deny_gid'];
+
+ $i = item_store($arr);
+ if($i)
+ proc_run('php',"include/notifier.php","activity","$i");
+ }
+ }
+ }
- $pubkey = openssl_pkey_get_details($res);
- $public_key = $pubkey["key"];
- $r = q("UPDATE `contact` SET `issued-pubkey` = '%s', `prvkey` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
- dbesc($public_key),
- dbesc($private_key),
- intval($contact_id),
- intval($uid)
+ $g = q("select def_gid from user where uid = %d limit 1",
+ intval($uid)
);
+ if($contact && $g && intval($g[0]['def_gid'])) {
+ require_once('include/group.php');
+ group_add_member($uid,'',$contact['id'],$g[0]['def_gid']);
+ }
+ // Let's send our user to the contact editor in case they want to
+ // do anything special with this new friend.
- $params = array();
+ if($handsfree === null)
+ goaway($a->get_baseurl() . '/contacts/' . intval($contact_id));
+ else
+ return;
+ //NOTREACHED
+ }
- $src_aes_key = random_string();
+ /**
+ *
+ *
+ * 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.
+ *
+ */
- $result = '';
- openssl_private_encrypt($dfrn_id,$result,$a->user['prvkey']);
+ if(x($_POST,'source_url')) {
+
+ // We are processing an external confirmation to an introduction created by our user.
+
+ $public_key = ((x($_POST,'public_key')) ? $_POST['public_key'] : '');
+ $dfrn_id = ((x($_POST,'dfrn_id')) ? hex2bin($_POST['dfrn_id']) : '');
+ $source_url = ((x($_POST,'source_url')) ? hex2bin($_POST['source_url']) : '');
+ $aes_key = ((x($_POST,'aes_key')) ? $_POST['aes_key'] : '');
+ $duplex = ((x($_POST,'duplex')) ? intval($_POST['duplex']) : 0 );
+ $page = ((x($_POST,'page')) ? intval($_POST['page']) : 0 );
+ $version_id = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version'] : 2.0);
- $params['dfrn_id'] = $result;
- $params['public_key'] = $public_key;
+ $forum = (($page == 1) ? 1 : 0);
+ $prv = (($page == 2) ? 1 : 0);
+ logger('dfrn_confirm: requestee contacted: ' . $node);
- openssl_public_encrypt($_SESSION['my_url'], $params['source_url'], $site_pubkey);
+ logger('dfrn_confirm: request: POST=' . print_r($_POST,true), LOGGER_DATA);
- if($aes_allow && function_exists('openssl_encrypt')) {
- openssl_public_encrypt($src_aes_key, $params['aes_key'], $site_pubkey);
- $params['public_key'] = openssl_encrypt($public_key,'AES-256-CBC',$src_aes_key);
+ // 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);
}
- $params['dfrn_version'] = '2.0';
- if($duplex == 1)
- $params['duplex'] = 1;
+ // Find our user's account
- $res = post_url($dfrn_confirm,$params);
+ $r = q("SELECT * FROM `user` WHERE `nickname` = '%s' LIMIT 1",
+ dbesc($node));
-// uncomment the following two lines and comment the following xml/status lines
-// to debug the remote confirmation section (when both confirmations
-// and responses originate on this system)
+ if(! count($r)) {
+ $message = sprintf(t('No user record found for \'%s\' '), $node);
+ xml_status(3,$message); // failure
+ // NOTREACHED
+ }
-// echo $res;
-// $status = 0;
+ $my_prvkey = $r[0]['prvkey'];
+ $local_uid = $r[0]['uid'];
- $xml = simplexml_load_string($res);
- $status = (int) $xml->status;
- switch($status) {
- case 0:
- notice( t("Confirmation completed successfully") . EOL);
- break;
- case 1:
- // birthday paradox - generate new dfrn-id and fall through.
+ if(! strstr($my_prvkey,'PRIVATE KEY')) {
+ $message = t('Our site encryption key is apparently messed up.');
+ xml_status(3,$message);
+ }
- $new_dfrn_id = random_string();
- $r = q("UPDATE contact SET `issued-id` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
- dbesc($new_dfrn_id),
- intval($contact_id),
- intval($uid)
- );
+ // verify everything
- case 2:
- notice( t("Temporary failure. Please wait and try again.") . EOL);
- break;
+ $decrypted_source_url = "";
+ openssl_private_decrypt($source_url,$decrypted_source_url,$my_prvkey);
- case 3:
- notice( t("Introduction failed or was revoked. Cannot complete.") . EOL);
- break;
+ if(! strlen($decrypted_source_url)) {
+ $message = t('Empty site URL was provided or URL could not be decrypted by us.');
+ xml_status(3,$message);
+ // NOTREACHED
}
- if(($status == 0 || $status == 3) && ($intro_id)) {
-
- //delete the notification
+ $ret = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
+ dbesc($decrypted_source_url),
+ intval($local_uid)
+ );
+ if(! count($ret)) {
+ if(strstr($decrypted_source_url,'http:'))
+ $newurl = str_replace('http:','https:',$decrypted_source_url);
+ else
+ $newurl = str_replace('https:','http:',$decrypted_source_url);
- $r = q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d LIMIT 1",
- intval($intro_id),
- intval($uid)
+ $ret = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
+ dbesc($newurl),
+ intval($local_uid)
);
-
+ if(! count($ret)) {
+ // this is either a bogus confirmation (?) or we deleted the original introduction.
+ $message = t('Contact record was not found for you on our site.');
+ xml_status(3,$message);
+ return; // NOTREACHED
+ }
}
- if($status != 0)
- return;
-
- require_once("Photo.php");
+ $relation = $ret[0]['rel'];
- $photo_failure = false;
+ // Decrypt all this stuff we just received
- $r = q("SELECT `photo` FROM `contact` WHERE `id` = %d LIMIT 1",
- intval($contact_id));
+ $foreign_pubkey = $ret[0]['site-pubkey'];
+ $dfrn_record = $ret[0]['id'];
+
+ if(! $foreign_pubkey) {
+ $message = sprintf( t('Site public key not available in contact record for URL %s.'), $newurl);
+ xml_status(3,$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;
+ }
+
+ $r = q("SELECT * FROM `contact` WHERE `dfrn-id` = '%s' LIMIT 1",
+ dbesc($decrypted_dfrn_id)
+ );
if(count($r)) {
+ $message = t('The ID provided by your system is a duplicate on our system. It should work if you try again.');
+ xml_status(1,$message); // Birthday paradox - duplicate dfrn-id
+ // NOTREACHED
+ }
- $filename = basename($r[0]['photo']);
- $img_str = fetch_url($r[0]['photo'],true);
- $img = new Photo($img_str);
- if($img) {
+ $r = q("UPDATE `contact` SET `dfrn-id` = '%s', `pubkey` = '%s' WHERE `id` = %d",
+ dbesc($decrypted_dfrn_id),
+ dbesc($dfrn_pubkey),
+ intval($dfrn_record)
+ );
+ if(! count($r)) {
+ $message = t('Unable to set your contact credentials on our system.');
+ xml_status(3,$message);
+ }
- $img->scaleImageSquare(175);
-
- $hash = photo_new_resource();
+ // It's possible that the other person also requested friendship.
+ // If it is a duplex relationship, ditch the issued-id if one exists.
- $r = $img->store($uid, $contact_id, $hash, $filename, t('Contact Photos'), 4 );
+ if($duplex) {
+ $r = q("UPDATE `contact` SET `issued-id` = '' WHERE `id` = %d",
+ intval($dfrn_record)
+ );
+ }
- if($r === false)
- $photo_failure = true;
+ // We're good but now we have to scrape the profile photo and send notifications.
- $img->scaleImage(80);
- $r = $img->store($uid, $contact_id, $hash, $filename, t('Contact Photos'), 5 );
- if($r === false)
- $photo_failure = true;
+ $r = q("SELECT `photo` FROM `contact` WHERE `id` = %d LIMIT 1",
+ intval($dfrn_record));
- $photo = $a->get_baseurl() . '/photo/' . $hash . '-4.jpg';
- $thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.jpg';
- }
- else
- $photo_failure = true;
- }
+ if(count($r))
+ $photo = $r[0]['photo'];
else
- $photo_failure = true;
+ $photo = $a->get_baseurl() . '/images/person-175.jpg';
- if($photo_failure) {
- $photo = $a->get_baseurl() . '/images/default-profile.jpg';
- $thumb = $a->get_baseurl() . '/images/default-profile-sm.jpg';
- }
+ require_once("include/Photo.php");
+
+ $photos = import_profile_photo($photo,$local_uid,$dfrn_record);
+
+ logger('dfrn_confirm: request - photos imported');
- $new_relation = REL_VIP;
- if(($relation == REL_FAN) || ($duplex))
- $new_relation = REL_BUD;
-
- $r = q("UPDATE `contact` SET `photo` = '%s',
- `thumb` = '%s',
- `rel` = %d,
- `name-date` = '%s',
- `uri-date` = '%s',
- `avatar-date` = '%s',
- `blocked` = 0,
+ $new_relation = CONTACT_IS_SHARING;
+ if(($relation == CONTACT_IS_FOLLOWER) || ($duplex))
+ $new_relation = CONTACT_IS_FRIEND;
+
+ if(($relation == CONTACT_IS_FOLLOWER) && ($duplex))
+ $duplex = 0;
+
+ $r = q("UPDATE `contact` SET
+ `photo` = '%s',
+ `thumb` = '%s',
+ `micro` = '%s',
+ `rel` = %d,
+ `name-date` = '%s',
+ `uri-date` = '%s',
+ `avatar-date` = '%s',
+ `blocked` = 0,
`pending` = 0,
`duplex` = %d,
- `network` = 'dfrn' WHERE `id` = %d LIMIT 1
+ `forum` = %d,
+ `prv` = %d,
+ `network` = '%s' WHERE `id` = %d
",
- dbesc($photo),
- dbesc($thumb),
+ dbesc($photos[0]),
+ dbesc($photos[1]),
+ dbesc($photos[2]),
intval($new_relation),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
intval($duplex),
- intval($contact_id)
+ intval($forum),
+ intval($prv),
+ dbesc(NETWORK_DFRN),
+ intval($dfrn_record)
);
- if($r === false)
- notice( t('Unable to set contact photo.') . EOL);
+ if($r === false) { // indicates schema is messed up or total db failure
+ $message = t('Unable to update your contact profile details on our system');
+ xml_status(3,$message);
+ }
+
+ // Otherwise everything seems to have worked and we are almost done. Yay!
+ // Send an email notification
+
+ logger('dfrn_confirm: request: info updated');
- goaway($a->get_baseurl() . '/contacts/' . intval($contact_id));
- return; //NOTREACHED
+ $r = q("SELECT `contact`.*, `user`.* FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
+ WHERE `contact`.`id` = %d LIMIT 1",
+ intval($dfrn_record)
+ );
+
+ if(count($r))
+ $combined = $r[0];
+
+ if((count($r)) && ($r[0]['notify-flags'] & NOTIFY_CONFIRM)) {
+ $mutual = ($new_relation == CONTACT_IS_FRIEND);
+ notification(array(
+ 'type' => NOTIFY_CONFIRM,
+ 'notify_flags' => $r[0]['notify-flags'],
+ 'language' => $r[0]['language'],
+ 'to_name' => $r[0]['username'],
+ 'to_email' => $r[0]['email'],
+ 'uid' => $r[0]['uid'],
+ 'link' => $a->get_baseurl() . '/contacts/' . $dfrn_record,
+ 'source_name' => ((strlen(stripslashes($r[0]['name']))) ? stripslashes($r[0]['name']) : t('[Name Withheld]')),
+ 'source_link' => $r[0]['url'],
+ 'source_photo' => $r[0]['photo'],
+ 'verb' => ($mutual?ACTIVITY_FRIEND:ACTIVITY_FOLLOW),
+ 'otype' => 'intro'
+ ));
+ }
+
+ // Send a new friend post if we are allowed to...
+
+ if($page && intval(get_pconfig($local_uid,'system','post_joingroup'))) {
+ $r = q("SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
+ intval($local_uid)
+ );
+
+ if((count($r)) && ($r[0]['hide-friends'] == 0)) {
+
+ require_once('include/items.php');
+
+ $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
+ intval($local_uid)
+ );
+
+ if(count($self)) {
+
+ $arr = array();
+ $arr['uri'] = $arr['parent-uri'] = item_new_uri($a->get_hostname(), $local_uid);
+ $arr['uid'] = $local_uid;
+ $arr['contact-id'] = $self[0]['id'];
+ $arr['wall'] = 1;
+ $arr['type'] = 'wall';
+ $arr['gravity'] = 0;
+ $arr['origin'] = 1;
+ $arr['author-name'] = $arr['owner-name'] = $self[0]['name'];
+ $arr['author-link'] = $arr['owner-link'] = $self[0]['url'];
+ $arr['author-avatar'] = $arr['owner-avatar'] = $self[0]['thumb'];
+
+ $A = '[url=' . $self[0]['url'] . ']' . $self[0]['name'] . '[/url]';
+ $APhoto = '[url=' . $self[0]['url'] . ']' . '[img]' . $self[0]['thumb'] . '[/img][/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;
+ $arr['body'] = sprintf( t('%1$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['last-child'] = 1;
+
+ $arr['allow_cid'] = $user[0]['allow_cid'];
+ $arr['allow_gid'] = $user[0]['allow_gid'];
+ $arr['deny_cid'] = $user[0]['deny_cid'];
+ $arr['deny_gid'] = $user[0]['deny_gid'];
+
+ $i = item_store($arr);
+ if($i)
+ proc_run('php',"include/notifier.php","activity","$i");
+
+ }
+ }
+ }
+ xml_status(0); // Success
+ return; // NOTREACHED
+
+ ////////////////////// End of this scenario ///////////////////////////////////////////////
}
- return;
+
+ // somebody arrived here by mistake or they are fishing. Send them to the homepage.
+
+ goaway(z_root());
+ // NOTREACHED
+
}
projects / friendica.git / blobdiff