From b41218ca303b9fd8258fd613915d3c4b9fd411c0 Mon Sep 17 00:00:00 2001 From: Mike Macgirvin Date: Sun, 24 Oct 2010 20:39:24 -0700 Subject: workflow for federated/non-dfrn followers --- mod/dfrn_confirm.php | 378 +++++++++++++++++++++++++++++---------------------- 1 file changed, 214 insertions(+), 164 deletions(-) (limited to 'mod/dfrn_confirm.php') diff --git a/mod/dfrn_confirm.php b/mod/dfrn_confirm.php index b4ca74889..cc1edea22 100644 --- a/mod/dfrn_confirm.php +++ b/mod/dfrn_confirm.php @@ -7,7 +7,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) { if(is_array($handsfree)) { // called directly from dfrn_request due to automatic friend acceptance - // any $_POST parameters we might need are supplied in the $handsfree array + // any $_POST parameters we may require are supplied in the $handsfree array $node = $handsfree['node']; $a->interactive = false; // notice() becomes a no-op since nobody is there to see it @@ -19,12 +19,12 @@ function dfrn_confirm_post(&$a,$handsfree = null) { } // Main entry point. Our user received a friend request notification (perhaps - // from another site) and clicked 'Accept'. $POST['source_url'] is not set. + // from another site) and clicked 'Approve'. $POST['source_url'] is not set. // OR we have been called directly from dfrn_request ($handsfree != null) due to // this being a page type which supports automatic friend acceptance. if(! x($_POST,'source_url')) { - + $uid = ((is_array($handsfree)) ? $handsfree['uid'] : local_user()); if(! $uid) { @@ -42,7 +42,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) { } - // These come from the friend request notification form or $handsfree reply. + // These come from either the friend request notification form or $handsfree array. if(is_array($handsfree)) { $dfrn_id = $handsfree['dfrn_id']; @@ -53,13 +53,16 @@ function dfrn_confirm_post(&$a,$handsfree = null) { $dfrn_id = ((x($_POST,'dfrn_id')) ? notags(trim($_POST['dfrn_id'])) : ""); $intro_id = intval($_POST['intro_id']); $duplex = intval($_POST['duplex']); + $cid = intval($_POST['contact_id']); } // 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` = '%s' AND `uid` = %d LIMIT 1", + $r = q("SELECT * FROM `contact` WHERE ( ( `issued-id` != '' AND `issued-id` = '%s' ) OR ( `id` = %d AND `id` != 0 ) ) AND `uid` = %d LIMIT 1", dbesc($dfrn_id), + intval($cid), intval($uid) ); @@ -68,153 +71,158 @@ function dfrn_confirm_post(&$a,$handsfree = null) { return; } - $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']; + $contact = $r[0]; + $contact_id = $contact['id']; + $relation = $contact['rel']; + $site_pubkey = $contact['site-pubkey']; + $dfrn_confirm = $contact['confirm']; + $aes_allow = $contact['aes_allow']; - // 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. - $res = openssl_pkey_new(array( - 'digest_alg' => 'whirlpool', - 'private_key_bits' => 4096, - 'encrypt_key' => false ) - ); + if($contact['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. - $private_key = ''; + $res = openssl_pkey_new(array( + 'digest_alg' => 'whirlpool', + 'private_key_bits' => 4096, + 'encrypt_key' => false ) + ); - openssl_pkey_export($res, $private_key); - $pubkey = openssl_pkey_get_details($res); - $public_key = $pubkey["key"]; + $private_key = ''; - // Save the private key. Send them the public key. + openssl_pkey_export($res, $private_key); - $r = q("UPDATE `contact` SET `prvkey` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1", - dbesc($private_key), - intval($contact_id), - intval($uid) - ); + $pubkey = openssl_pkey_get_details($res); + $public_key = $pubkey["key"]; - $params = array(); + // Save the private key. Send them the public key. - // Per the protocol document, 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. + $r = q("UPDATE `contact` SET `prvkey` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1", + dbesc($private_key), + intval($contact_id), + intval($uid) + ); - // 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. + $params = array(); - $src_aes_key = random_string(); + // Per the protocol document, 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. - $result = ''; - openssl_private_encrypt($dfrn_id,$result,$user[0]['prvkey']); + // 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. - $params['dfrn_id'] = bin2hex($result); - $params['public_key'] = $public_key; + $src_aes_key = random_string(); + $result = ''; + openssl_private_encrypt($dfrn_id,$result,$user[0]['prvkey']); - $my_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname']; + $params['dfrn_id'] = bin2hex($result); + $params['public_key'] = $public_key; - openssl_public_encrypt($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)); - } + $my_url = $a->get_baseurl() . '/profile/' . $user[0]['nickname']; - $params['dfrn_version'] = DFRN_PROTOCOL_VERSION ; - if($duplex == 1) - $params['duplex'] = 1; + openssl_public_encrypt($my_url, $params['source_url'], $site_pubkey); + $params['source_url'] = bin2hex($params['source_url']); - // POST all this stuff to the other site. + 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)); + } - $res = post_url($dfrn_confirm,$params); + $params['dfrn_version'] = DFRN_PROTOCOL_VERSION ; + if($duplex == 1) + $params['duplex'] = 1; - // Now figure out what they responded. Try to be robust if the remote site is - // having difficulty and throwing up errors of some kind. + // POST all this stuff to the other site. - $leading_junk = substr($res,0,strpos($res,'status; - $message = unxmlify($xml->message); // human readable text of what may have gone wrong. - switch($status) { - case 0: - notice( t("Confirmation completed successfully.") . EOL); - if(strlen($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(); - $r = q("UPDATE contact SET `issued-id` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1", - dbesc($new_dfrn_id), - intval($contact_id), - intval($uid) + $xml = simplexml_load_string($res); + $status = (int) $xml->status; + $message = unxmlify($xml->message); // human readable text of what may have gone wrong. + switch($status) { + case 0: + notice( t("Confirmation completed successfully.") . EOL); + if(strlen($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(); + $r = q("UPDATE contact SET `issued-id` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1", + dbesc($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. + + $r = q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d LIMIT 1", + intval($intro_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. - - $r = q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d LIMIT 1", - intval($intro_id), - intval($uid) - ); - + if($status != 0) + return; } - if($status != 0) - return; - // We have now established a relationship with the other site. // Let's make our own personal copy of their profile photo so we don't have // to always load it from their site. @@ -223,36 +231,29 @@ function dfrn_confirm_post(&$a,$handsfree = null) { $photo_failure = false; - $r = q("SELECT `photo` FROM `contact` WHERE `id` = %d LIMIT 1", - intval($contact_id)); - if(count($r)) { - - $filename = basename($r[0]['photo']); - $img_str = fetch_url($r[0]['photo'],true); - $img = new Photo($img_str); - if($img->is_valid()) { + $filename = basename($contact['photo']); + $img_str = fetch_url($contact['photo'],true); + $img = new Photo($img_str); + if($img->is_valid()) { - $img->scaleImageSquare(175); + $img->scaleImageSquare(175); - $hash = photo_new_resource(); + $hash = photo_new_resource(); - $r = $img->store($uid, $contact_id, $hash, $filename, t('Contact Photos'), 4 ); + $r = $img->store($uid, $contact_id, $hash, $filename, t('Contact Photos'), 4 ); - if($r === false) - $photo_failure = true; - - $img->scaleImage(80); + if($r === false) + $photo_failure = true; - $r = $img->store($uid, $contact_id, $hash, $filename, t('Contact Photos'), 5 ); + $img->scaleImage(80); - if($r === false) - $photo_failure = true; + $r = $img->store($uid, $contact_id, $hash, $filename, t('Contact Photos'), 5 ); - $photo = $a->get_baseurl() . '/photo/' . $hash . '-4.jpg'; - $thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.jpg'; - } - else + if($r === false) $photo_failure = true; + + $photo = $a->get_baseurl() . '/photo/' . $hash . '-4.jpg'; + $thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.jpg'; } else $photo_failure = true; @@ -262,40 +263,89 @@ function dfrn_confirm_post(&$a,$handsfree = null) { $thumb = $a->get_baseurl() . '/images/default-profile-sm.jpg'; } - $new_relation = REL_VIP; - if(($relation == REL_FAN) || ($duplex)) - $new_relation = REL_BUD; - $r = q("UPDATE `contact` SET `photo` = '%s', - `thumb` = '%s', - `rel` = %d, - `name-date` = '%s', - `uri-date` = '%s', - `avatar-date` = '%s', - `blocked` = 0, - `pending` = 0, - `duplex` = %d, - `network` = 'dfrn' WHERE `id` = %d LIMIT 1 - ", - dbesc($photo), - dbesc($thumb), - intval($new_relation), - dbesc(datetime_convert()), - dbesc(datetime_convert()), - dbesc(datetime_convert()), - intval($duplex), - intval($contact_id) - ); + if($contact['network'] === 'dfrn') { + + $new_relation = REL_VIP; + if(($relation == REL_FAN) || ($duplex)) + $new_relation = REL_BUD; + + $r = q("UPDATE `contact` SET `photo` = '%s', + `thumb` = '%s', + `rel` = %d, + `name-date` = '%s', + `uri-date` = '%s', + `avatar-date` = '%s', + `blocked` = 0, + `pending` = 0, + `duplex` = %d, + `network` = 'dfrn' WHERE `id` = %d LIMIT 1 + ", + dbesc($photo), + dbesc($thumb), + intval($new_relation), + dbesc(datetime_convert()), + dbesc(datetime_convert()), + dbesc(datetime_convert()), + intval($duplex), + intval($contact_id) + ); + } + else { + + $notify = ''; + $poll = ''; + + // $contact['network'] !== 'dfrn' + + $arr = lrdd($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']; + } + } + + $r = q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d LIMIT 1", + intval($intro_id), + intval($uid) + ); + + $r = q("UPDATE `contact` SET `photo` = '%s', + `thumb` = '%s', + `name-date` = '%s', + `uri-date` = '%s', + `avatar-date` = '%s', + `notify` = '%s', + `poll` = '%s', + `blocked` = 0, + `pending` = 0 + WHERE `id` = %d LIMIT 1 + ", + dbesc($photo), + dbesc($thumb), + dbesc(datetime_convert()), + dbesc(datetime_convert()), + dbesc(datetime_convert()), + dbesc($notify), + dbesc($poll), + intval($contact_id) + ); + } + if($r === false) - notice( t('Unable to set contact photo.') . EOL); + notice( t('Unable to set contact photo.') . EOL); // Let's send our user to the contact editor in case they want to // do anything special with this new friend. - + if($handsfree === null) goaway($a->get_baseurl() . '/contacts/' . intval($contact_id)); return; //NOTREACHED + } @@ -480,7 +530,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) { intval($duplex), intval($dfrn_record) ); - if($r === false) { // indicates schema is messed up or total db failure + if($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); } -- cgit v1.2.3