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-rw-r--r--mod/like.php113
1 files changed, 111 insertions, 2 deletions
diff --git a/mod/like.php b/mod/like.php
index 6b97fafb5..06d27659b 100644
--- a/mod/like.php
+++ b/mod/like.php
@@ -104,6 +104,7 @@ 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),
@@ -118,7 +119,58 @@ function like_content(&$a) {
intval($r[0]['id'])
);
- proc_run('php',"include/notifier.php","like","$post_id");
+ // Clean up the `sign` table
+ $r2 = q("DELETE FROM `sign` WHERE `iid` = %d",
+ intval($r[0]['id'])
+ );
+
+ // Save the author information for the unlike in case we need to relay to Diaspora
+ // 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 $item['resource-id'] exists, it means the item is a photo. Diaspora doesn't support
+ // likes on photos, so don't bother.
+
+ if(($activity === ACTIVITY_LIKE) && (! $item['resource-id'])) {
+ $signed_text = $r[0]['guid'] . ';' . 'Like';
+
+ if( contact['network'] === NETWORK_DIASPORA)
+ $diaspora_handle = $contact['addr'];
+ else { // Only works for NETWORK_DFRN
+ $contact_baseurl = substr($contact['url'], strpos($contact['url'],'://') + 3, strpos($contact['url'],'/profile') - 1);
+ $diaspora_handle = $contact['nick'] . '@' . $contact_baseurl;
+
+ // Get contact's private key if he's a user of the local Friendica server
+ $r2 = q("SELECT `contact`.`uid` FROM `contact` WHERE `url` = '%s' AND `self` = 1 LIMIT 1",
+ dbesc(contact['url'])
+ );
+
+ if( $r2) {
+ $contact_uid = $r2['uid'];
+ $r2 = q("SELECT prvkey FROM user WHERE id = %d LIMIT 1",
+ intval($contact_uid)
+ );
+
+ if( $r2)
+ $authorsig = base64_encode(rsa_sign($signed_text,$r2['prvkey'],'sha256'));
+ }
+ }
+
+ if(! isset($authorsig))
+ $authorsig = '';
+
+ q("insert into sign (`retract_iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
+ intval($r[0]['id']),
+ dbesc($signed_text),
+ dbesc($authorsig),
+ dbesc($diaspora_handle)
+ );
+ }
+
+// proc_run('php',"include/notifier.php","like","$post_id"); // $post_id isn't defined here!
+ proc_run('php',"include/notifier.php","like","$r[0]['id']");
return;
}
@@ -191,6 +243,63 @@ EOT;
);
}
+
+ // Save the author information for the like in case we need to relay to Diaspora
+ // 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(($activity === ACTIVITY_LIKE) && ($post_type === t('status'))) {
+ if( contact['network'] === NETWORK_DIASPORA)
+ $diaspora_handle = $contact['addr'];
+ else { // Only works for NETWORK_DFRN
+ $contact_baseurl = substr($contact['url'], strpos($contact['url'],'://') + 3, strpos($contact['url'],'/profile') - 1);
+ $diaspora_handle = $contact['nick'] . '@' . $contact_baseurl;
+
+ // Get contact's private key if he's a user of the local Friendica server
+ $r2 = q("SELECT `contact`.`uid` FROM `contact` WHERE `url` = '%s' AND `self` = 1 LIMIT 1",
+ dbesc(contact['url'])
+ );
+
+ if( $r2) {
+ $contact_uid = $r2['uid'];
+ $r2 = q("SELECT prvkey FROM user WHERE id = %d LIMIT 1",
+ intval($contact_uid)
+ );
+
+ if( $r2)
+ $contact_uprvkey = $r2['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)
+ );
+ }
+ }
+ }
+
+
$arr['id'] = $post_id;
call_hooks('post_local_end', $arr);
@@ -199,4 +308,4 @@ EOT;
killme();
// return; // NOTREACHED
-} \ No newline at end of file
+}