X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=mod%2Flike.php;h=bbb07289659257b4efdbda20fc294139509427d6;hb=55450087681f90ea7d517c301376c06aca18ccf1;hp=2876302122d78db7dbcb9df87f3ddcf75f92c215;hpb=c30f523c6200ef84c506940b5f86b49ff2c7cf6e;p=friendica.git diff --git a/mod/like.php b/mod/like.php old mode 100644 new mode 100755 index 2876302122..bbb0728965 --- a/mod/like.php +++ b/mod/like.php @@ -37,7 +37,7 @@ function like_content(&$a) { logger('like: verb ' . $verb . ' item ' . $item_id); - $r = q("SELECT * FROM `item` WHERE ( `id` = '%s' OR `uri` = '%s') AND `id` = `parent` LIMIT 1", + $r = q("SELECT * FROM `item` WHERE `id` = '%s' OR `uri` = '%s' LIMIT 1", dbesc($item_id), dbesc($item_id) ); @@ -55,6 +55,22 @@ function like_content(&$a) { return; } + $remote_owner = null; + + if(! $item['wall']) { + // The top level post may have been written by somebody on another system + $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1", + intval($item['contact-id']), + intval($item['uid']) + ); + if(! count($r)) + return; + if(! $r[0]['self']) + $remote_owner = $r[0]; + } + + // this represents the post owner on this system. + $r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid` WHERE `contact`.`self` = 1 AND `contact`.`uid` = %d LIMIT 1", intval($owner_uid) @@ -67,6 +83,11 @@ function like_content(&$a) { return; } + if(! $remote_owner) + $remote_owner = $owner; + + + // This represents the person posting if((local_user()) && (local_user() == $owner_uid)) { $contact = $owner; @@ -83,28 +104,50 @@ function like_content(&$a) { return; } - $r = q("SELECT `id` FROM `item` WHERE `verb` = '%s' AND `deleted` = 0 - AND `contact-id` = %d AND ( `parent` = '%s' OR `parent-uri` = '%s') LIMIT 1", - dbesc($activity), - intval($contact['id']), - dbesc($item_id), - dbesc($item_id) + + // See if we've been passed a return path to redirect to + $return_path = ((x($_REQUEST,'return')) ? $_REQUEST['return'] : ''); + + + $r = q("SELECT `id`, `guid` FROM `item` WHERE `verb` = '%s' AND `deleted` = 0 + AND `contact-id` = %d AND `uid` = %d + AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s') LIMIT 1", + dbesc($activity), intval($contact['id']), intval($owner_uid), + dbesc($item_id), dbesc($item_id), dbesc($item['uri']) ); + if(count($r)) { + $like_item = $r[0]; + // Already voted, undo it - $r = q("UPDATE `item` SET `deleted` = 1, `changed` = '%s' WHERE `id` = %d LIMIT 1", + $r = q("UPDATE `item` SET `deleted` = 1, `unseen` = 1, `changed` = '%s' WHERE `id` = %d", dbesc(datetime_convert()), - intval($r[0]['id']) + intval($like_item['id']) ); - proc_run('php',"include/notifier.php","like","$post_id"); - return; + + // Clean up the Diaspora signatures for this like + // Go ahead and do it even if Diaspora support is disabled. We still want to clean up + // if it had been enabled in the past + $r = q("DELETE FROM `sign` WHERE `iid` = %d", + intval($like_item['id']) + ); + + // Save the author information for the unlike in case we need to relay to Diaspora + store_diaspora_like_retract_sig($activity, $item, $like_item, $contact); + +// proc_run('php',"include/notifier.php","like","$post_id"); // $post_id isn't defined here! + $like_item_id = $like_item['id']; + proc_run('php',"include/notifier.php","like","$like_item_id"); + + like_content_return($a->get_baseurl(), $return_path); + return; // NOTREACHED } $uri = item_new_uri($a->get_hostname(),$owner_uid); $post_type = (($item['resource-id']) ? t('photo') : t('status')); - $objtype = (($item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE ); + $objtype = (($item['resource-id']) ? ACTIVITY_OBJ_PHOTO : ACTIVITY_OBJ_NOTE ); $link = xmlify('' . "\n") ; $body = $item['body']; @@ -133,13 +176,15 @@ EOT; $arr['uid'] = $owner_uid; $arr['contact-id'] = $contact['id']; $arr['type'] = 'activity'; - $arr['wall'] = 1; + $arr['wall'] = $item['wall']; + $arr['origin'] = 1; $arr['gravity'] = GRAVITY_LIKE; $arr['parent'] = $item['id']; $arr['parent-uri'] = $item['uri']; - $arr['owner-name'] = $owner['name']; - $arr['owner-link'] = $owner['url']; - $arr['owner-avatar'] = $owner['thumb']; + $arr['thr-parent'] = $item['uri']; + $arr['owner-name'] = $remote_owner['name']; + $arr['owner-link'] = $remote_owner['url']; + $arr['owner-avatar'] = $remote_owner['thumb']; $arr['author-name'] = $contact['name']; $arr['author-link'] = $contact['url']; $arr['author-avatar'] = $contact['thumb']; @@ -160,14 +205,18 @@ EOT; $arr['unseen'] = 1; $arr['last-child'] = 0; - $post_id = item_store($arr); + $post_id = item_store($arr); if(! $item['visible']) { - $r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1", + $r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d AND `uid` = %d", intval($item['id']), intval($owner_uid) ); - } + } + + + // Save the author information for the like in case we need to relay to Diaspora + store_diaspora_like_sig($activity, $post_type, $contact, $post_id); $arr['id'] = $post_id; @@ -175,5 +224,145 @@ EOT; proc_run('php',"include/notifier.php","like","$post_id"); - return; // NOTREACHED -} \ No newline at end of file + like_content_return($a->get_baseurl(), $return_path); + killme(); // NOTREACHED +// return; // NOTREACHED +} + + +// Decide how to return. If we were called with a 'return' argument, +// then redirect back to the calling page. If not, just quietly end + +function like_content_return($baseurl, $return_path) { + + if($return_path) { + $rand = '_=' . time(); + if(strpos($return_path, '?')) $rand = "&$rand"; + else $rand = "?$rand"; + + goaway($baseurl . "/" . $return_path . $rand); + } + + killme(); +} + + +function store_diaspora_like_retract_sig($activity, $item, $like_item, $contact) { + // Note that we can only create a signature for a user of the local server. We don't have + // a key for remote users. That is ok, because if a remote user is "unlike"ing a post, it + // means we are the relay, and for relayable_retractions, Diaspora + // only checks the parent_author_signature if it doesn't have to relay further + // + // If $item['resource-id'] exists, it means the item is a photo. Diaspora doesn't support + // likes on photos, so don't bother. + + $enabled = intval(get_config('system','diaspora_enabled')); + if(! $enabled) { + logger('mod_like: diaspora support disabled, not storing like retraction signature', LOGGER_DEBUG); + return; + } + + logger('mod_like: storing diaspora like retraction signature'); + + if(($activity === ACTIVITY_LIKE) && (! $item['resource-id'])) { + $signed_text = $like_item['guid'] . ';' . 'Like'; + + // Only works for NETWORK_DFRN + $contact_baseurl_start = strpos($contact['url'],'://') + 3; + $contact_baseurl_length = strpos($contact['url'],'/profile') - $contact_baseurl_start; + $contact_baseurl = substr($contact['url'], $contact_baseurl_start, $contact_baseurl_length); + $diaspora_handle = $contact['nick'] . '@' . $contact_baseurl; + + // Get contact's private key if he's a user of the local Friendica server + $r = q("SELECT `contact`.`uid` FROM `contact` WHERE `url` = '%s' AND `self` = 1 LIMIT 1", + dbesc($contact['url']) + ); + + if( $r) { + $contact_uid = $r['uid']; + $r = q("SELECT prvkey FROM user WHERE uid = %d LIMIT 1", + intval($contact_uid) + ); + + if( $r) + $authorsig = base64_encode(rsa_sign($signed_text,$r['prvkey'],'sha256')); + } + + if(! isset($authorsig)) + $authorsig = ''; + + q("insert into sign (`retract_iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ", + intval($like_item['id']), + dbesc($signed_text), + dbesc($authorsig), + dbesc($diaspora_handle) + ); + } + + return; +} + +function store_diaspora_like_sig($activity, $post_type, $contact, $post_id) { + // Note that we can only create a signature for a user of the local server. We don't have + // a key for remote users. That is ok, because if a remote user is "unlike"ing a post, it + // means we are the relay, and for relayable_retractions, Diaspora + // only checks the parent_author_signature if it doesn't have to relay further + + $enabled = intval(get_config('system','diaspora_enabled')); + if(! $enabled) { + logger('mod_like: diaspora support disabled, not storing like signature', LOGGER_DEBUG); + return; + } + + logger('mod_like: storing diaspora like signature'); + + if(($activity === ACTIVITY_LIKE) && ($post_type === t('status'))) { + // Only works for NETWORK_DFRN + $contact_baseurl_start = strpos($contact['url'],'://') + 3; + $contact_baseurl_length = strpos($contact['url'],'/profile') - $contact_baseurl_start; + $contact_baseurl = substr($contact['url'], $contact_baseurl_start, $contact_baseurl_length); + $diaspora_handle = $contact['nick'] . '@' . $contact_baseurl; + + // Get contact's private key if he's a user of the local Friendica server + $r = q("SELECT `contact`.`uid` FROM `contact` WHERE `url` = '%s' AND `self` = 1 LIMIT 1", + dbesc($contact['url']) + ); + + if( $r) { + $contact_uid = $r['uid']; + $r = q("SELECT prvkey FROM user WHERE uid = %d LIMIT 1", + intval($contact_uid) + ); + + if( $r) + $contact_uprvkey = $r['prvkey']; + } + + $r = q("SELECT guid, parent FROM `item` WHERE id = %d LIMIT 1", + intval($post_id) + ); + if( $r) { + $p = q("SELECT guid FROM `item` WHERE id = %d AND parent = %d LIMIT 1", + intval($r[0]['parent']), + intval($r[0]['parent']) + ); + if( $p) { + $signed_text = $r[0]['guid'] . ';Post;' . $p[0]['guid'] . ';true;' . $diaspora_handle; + + if(isset($contact_uprvkey)) + $authorsig = base64_encode(rsa_sign($signed_text,$contact_uprvkey,'sha256')); + else + $authorsig = ''; + + q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ", + intval($post_id), + dbesc($signed_text), + dbesc($authorsig), + dbesc($diaspora_handle) + ); + } + } + } + + return; +}