diff options
Diffstat (limited to 'include/diaspora.php')
| -rwxr-xr-x[-rw-r--r--] | include/diaspora.php | 193 |
1 files changed, 147 insertions, 46 deletions
diff --git a/include/diaspora.php b/include/diaspora.php index f7c2c5e8e..1e6662f04 100644..100755 --- a/include/diaspora.php +++ b/include/diaspora.php @@ -83,6 +83,9 @@ function diaspora_dispatch($importer,$msg) { elseif($xmlbase->signed_retraction) { $ret = diaspora_signed_retraction($importer,$xmlbase->signed_retraction,$msg); } + elseif($xmlbase->relayable_retraction) { + $ret = diaspora_signed_retraction($importer,$xmlbase->relayable_retraction,$msg); + } elseif($xmlbase->photo) { $ret = diaspora_photo($importer,$xmlbase->photo,$msg); } @@ -677,7 +680,7 @@ function diaspora_post($importer,$xml) { return; } - // allocate a guid on our system - we aren't fixing any collisions. + // allocate a guid on our system - we aren't fixing any collisions. // we're ignoring them $g = q("select * from guid where guid = '%s' limit 1", @@ -844,7 +847,7 @@ function diaspora_reshare($importer,$xml) { $prefix = '♲ ' . $details . "\n"; - // allocate a guid on our system - we aren't fixing any collisions. + // allocate a guid on our system - we aren't fixing any collisions. // we're ignoring them $g = q("select * from guid where guid = '%s' limit 1", @@ -948,7 +951,7 @@ function diaspora_asphoto($importer,$xml) { return; } - // allocate a guid on our system - we aren't fixing any collisions. + // allocate a guid on our system - we aren't fixing any collisions. // we're ignoring them $g = q("select * from guid where guid = '%s' limit 1", @@ -1602,22 +1605,28 @@ function diaspora_like($importer,$xml,$msg) { logger('diaspora_like: duplicate like: ' . $guid); return; } + // Note: I don't think "Like" objects with positive = "false" are ever actually used + // It looks like "RelayableRetractions" are used for "unlike" instead if($positive === 'false') { - q("UPDATE `item` SET `deleted` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1", + logger('diaspora_like: received a like with positive set to "false"...ignoring'); +/* q("UPDATE `item` SET `deleted` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1", intval($r[0]['id']), intval($importer['uid']) - ); + );*/ // FIXME // send notification via proc_run() return; } } + // Note: I don't think "Like" objects with positive = "false" are ever actually used + // It looks like "RelayableRetractions" are used for "unlike" instead if($positive === 'false') { - logger('diaspora_like: unlike received with no corresponding like'); + logger('diaspora_like: received a like with positive set to "false"'); + logger('diaspora_like: unlike received with no corresponding like...ignoring'); return; } - $author_signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle; + $signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle; $author_signature = base64_decode($author_signature); @@ -1635,20 +1644,20 @@ function diaspora_like($importer,$xml,$msg) { } } - if(! rsa_verify($author_signed_data,$author_signature,$key,'sha256')) { + if(! rsa_verify($signed_data,$author_signature,$key,'sha256')) { logger('diaspora_like: verification failed.'); return; } if($parent_author_signature) { - $owner_signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle; + //$owner_signed_data = $guid . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $diaspora_handle; $parent_author_signature = base64_decode($parent_author_signature); $key = $msg['key']; - if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha256')) { + if(! rsa_verify($signed_data,$parent_author_signature,$key,'sha256')) { logger('diaspora_like: owner verification failed.'); return; } @@ -1783,38 +1792,89 @@ function diaspora_signed_retraction($importer,$xml,$msg) { $type = notags(unxmlify($xml->target_type)); $sig = notags(unxmlify($xml->target_author_signature)); + $parent_author_signature = (($xml->parent_author_signature) ? notags(unxmlify($xml->parent_author_signature)) : ''); + $contact = diaspora_get_contact_by_handle($importer['uid'],$diaspora_handle); if(! $contact) { logger('diaspora_signed_retraction: no contact'); return; } - // this may not yet work for comments. Need to see how the relaying works - // and figure out who signs it. - $signed_data = $guid . ';' . $type ; - $sig = base64_decode($sig); + $sig_decode = base64_decode($sig); - $key = $msg['key']; + if(strcasecmp($diaspora_handle,$msg['author']) == 0) { + $person = $contact; + $key = $msg['key']; + } + else { + $person = find_diaspora_person_by_handle($diaspora_handle); + + if(is_array($person) && x($person,'pubkey')) + $key = $person['pubkey']; + else { + logger('diaspora_signed_retraction: unable to find author details'); + return; + } + } - if(! rsa_verify($signed_data,$sig,$key,'sha256')) { - logger('diaspora_signed_retraction: owner verification failed.' . print_r($msg,true)); + if(! rsa_verify($signed_data,$sig_decode,$key,'sha256')) { + logger('diaspora_signed_retraction: retraction-owner verification failed.' . print_r($msg,true)); return; } - if($type === 'StatusMessage') { + if($parent_author_signature) { + $parent_author_signature = base64_decode($parent_author_signature); + + $key = $msg['key']; + + if(! rsa_verify($signed_data,$parent_author_signature,$key,'sha256')) { + logger('diaspora_signed_retraction: failed to verify person relaying the retraction (e.g. owner of a post relaying a retracted comment'); + return; + } + + } + + if($type === 'StatusMessage' || $type === 'Comment' || $type === 'Like') { $r = q("select * from item where guid = '%s' and uid = %d and not file like '%%[%%' limit 1", dbesc($guid), intval($importer['uid']) ); if(count($r)) { if(link_compare($r[0]['author-link'],$contact['url'])) { - q("update item set `deleted` = 1, `changed` = '%s' where `id` = %d limit 1", + q("update item set `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = '' where `id` = %d limit 1", + dbesc(datetime_convert()), dbesc(datetime_convert()), intval($r[0]['id']) ); + + // Now check if the retraction needs to be relayed by us + // + // The first item in the `item` table with the parent id is the parent. However, MySQL doesn't always + // return the items ordered by `item`.`id`, in which case the wrong item is chosen as the parent. + // The only item with `parent` and `id` as the parent id is the parent item. + $p = q("select origin from item where parent = %d and id = %d limit 1", + $r[0]['parent'], + $r[0]['parent'] + ); + if(count($p)) { + if(($p[0]['origin']) && (! $parent_author_signature)) { + q("insert into sign (`retract_iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ", + $r[0]['id'], + dbesc($signed_data), + dbesc($sig), + dbesc($diaspora_handle) + ); + + // the existence of parent_author_signature would have meant the parent_author or owner + // is already relaying. + logger('diaspora_signed_retraction: relaying relayable_retraction'); + + proc_run('php','include/notifier.php','relayable_retraction',$r[0]['id']); + } + } } } } @@ -2071,7 +2131,11 @@ function diaspora_send_followup($item,$owner,$contact,$public_batch = false) { $tpl = get_markup_template('diaspora_like.tpl'); $like = true; $target_type = 'Post'; - $positive = (($item['deleted']) ? 'false' : 'true'); +// $positive = (($item['deleted']) ? 'false' : 'true'); + $positive = 'true'; + + if(($item['deleted'])) + logger('diaspora_send_followup: received deleted "like". Those should go to diaspora_send_retraction'); } else { $tpl = get_markup_template('diaspora_comment.tpl'); @@ -2111,7 +2175,7 @@ function diaspora_send_relay($item,$owner,$contact,$public_batch = false) { $a = get_app(); - $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3); + $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3); $theiraddr = $contact['addr']; @@ -2127,29 +2191,35 @@ function diaspora_send_relay($item,$owner,$contact,$public_batch = false) { else return; - if($item['verb'] === ACTIVITY_LIKE) { + $like = false; + $relay_retract = false; + $sql_sign_id = 'iid'; + if( $item['deleted']) { + $tpl = get_markup_template('diaspora_relayable_retraction.tpl'); + $relay_retract = true; + $sql_sign_id = 'retract_iid'; + $target_type = ( ($item['verb'] === ACTIVITY_LIKE) ? 'Like' : 'Comment'); + } + elseif($item['verb'] === ACTIVITY_LIKE) { $tpl = get_markup_template('diaspora_like_relay.tpl'); $like = true; $target_type = 'Post'; - $positive = (($item['deleted']) ? 'false' : 'true'); +// $positive = (($item['deleted']) ? 'false' : 'true'); + $positive = 'true'; } else { $tpl = get_markup_template('diaspora_comment_relay.tpl'); - $like = false; } $body = $item['body']; $text = html_entity_decode(bb2diaspora($body)); - // fetch the original signature if somebody sent the post to us to relay - // If we are relaying for a reply originating on our own account, there wasn't a 'send to relay' - // action. It wasn't needed. In that case create the original signature and the - // owner (parent author) signature - // comments from other networks will be relayed under our name, with a brief - // preamble to describe what's happening and noting the real author - $r = q("select * from sign where iid = %d limit 1", + // fetch the original signature if the relayable was created by a Diaspora + // or DFRN user. Relayables for other networks are not supported. + + $r = q("select * from sign where " . $sql_sign_id . " = %d limit 1", intval($item['id']) ); if(count($r)) { @@ -2160,6 +2230,12 @@ function diaspora_send_relay($item,$owner,$contact,$public_batch = false) { } else { + // Author signature information (for likes, comments, and retractions of likes or comments, + // whether from Diaspora or Friendica) must be placed in the `sign` table before this + // function is called + logger('diaspora_send_relay: original author signature not found, cannot send relayable'); + return; +/* $itemcontact = q("select * from contact where `id` = %d limit 1", intval($item['contact-id']) ); @@ -2168,29 +2244,40 @@ function diaspora_send_relay($item,$owner,$contact,$public_batch = false) { $prefix = sprintf( t('[Relayed] Comment authored by %s from network %s'), '['. $item['author-name'] . ']' . '(' . $item['author-link'] . ')', network_to_name($itemcontact['network'])) . "\n"; + // "$body" was assigned to "$text" above. It isn't used after that, so I don't think + // the following change will do anything $body = $prefix . $body; + + // I think this comment will fail upon reaching Diaspora, because "$signed_text" is not defined } } else { + // I'm confused about this "else." Since it sets "$handle = $myaddr," it seems like it should be for the case + // where the top-level post owner commented on his own post, i.e. "$itemcontact[0]['self']" is true. But it's + // positioned to be for the case where "count($itemcontact)" is 0. + + $handle = $myaddr; if($like) - $signed_text = $item['guid'] . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $myaddr; + $signed_text = $item['guid'] . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $handle; + elseif($relay_retract) + $signed_text = $item['guid'] . ';' . $target_type; else - $signed_text = $item['guid'] . ';' . $parent_guid . ';' . $text . ';' . $myaddr; + $signed_text = $item['guid'] . ';' . $parent_guid . ';' . $text . ';' . $handle; $authorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256')); - q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ", + q("insert into sign (`" . $sql_sign_id . "`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ", intval($item['id']), dbesc($signed_text), - dbesc(base64_encode($authorsig)), - dbesc($myaddr) + dbesc($authorsig), + dbesc($handle) ); - $handle = $myaddr; } +*/ } - // sign it + // sign it with the top-level owner's signature $parentauthorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256')); @@ -2198,14 +2285,15 @@ function diaspora_send_relay($item,$owner,$contact,$public_batch = false) { '$guid' => xmlify($item['guid']), '$parent_guid' => xmlify($parent_guid), '$target_type' =>xmlify($target_type), - '$authorsig' => xmlify($orig_sign['signature']), + '$authorsig' => xmlify($authorsig), '$parentsig' => xmlify($parentauthorsig), '$body' => xmlify($text), '$positive' => xmlify($positive), '$handle' => xmlify($handle) )); - logger('diaspora_relay_comment: base message: ' . $msg, LOGGER_DATA); + logger('diaspora_send_relay: base message: ' . $msg, LOGGER_DATA); + $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch))); @@ -2220,14 +2308,25 @@ function diaspora_send_retraction($item,$owner,$contact,$public_batch = false) { $a = get_app(); $myaddr = $owner['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3); - $signed_text = $item['guid'] . ';' . 'StatusMessage'; + // Check whether the retraction is for a top-level post or whether it's a relayable + if( $item['uri'] !== $item['parent-uri'] ) { + + $tpl = get_markup_template('diaspora_relay_retraction.tpl'); + $target_type = (($item['verb'] === ACTIVITY_LIKE) ? 'Like' : 'Comment'); + } + else { + + $tpl = get_markup_template('diaspora_signed_retract.tpl'); + $target_type = 'StatusMessage'; + } + + $signed_text = $item['guid'] . ';' . $target_type; - $tpl = get_markup_template('diaspora_signed_retract.tpl'); $msg = replace_macros($tpl, array( - '$guid' => $item['guid'], - '$type' => 'StatusMessage', - '$handle' => $myaddr, - '$signature' => base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256')) + '$guid' => xmlify($item['guid']), + '$type' => xmlify($target_type), + '$handle' => xmlify($myaddr), + '$signature' => xmlify(base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha256'))) )); $slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch))); @@ -2351,3 +2450,5 @@ function diaspora_transmit($owner,$contact,$slap,$public_batch) { return(($return_code) ? $return_code : (-1)); } + + |