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-rw-r--r--include/diaspora.php151
1 files changed, 122 insertions, 29 deletions
diff --git a/include/diaspora.php b/include/diaspora.php
index 8b8050a61..584be5ef2 100644
--- a/include/diaspora.php
+++ b/include/diaspora.php
@@ -680,7 +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
$g = q("select * from guid where guid = '%s' limit 1",
@@ -847,7 +847,7 @@ function diaspora_reshare($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
$g = q("select * from guid where guid = '%s' limit 1",
@@ -951,7 +951,7 @@ function diaspora_asphoto($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
$g = q("select * from guid where guid = '%s' limit 1",
@@ -1168,7 +1168,22 @@ function diaspora_comment($importer,$xml,$msg) {
);
}
- if(($parent_item['origin']) && (! $parent_author_signature)) {
+ if(($parent_item['origin']) && (! $parent_author_signature)) { if(($parent_item['origin']) && (! $parent_author_signature)) {
+ q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
+ intval($message_id),
+ dbesc($author_signed_data),
+ dbesc(base64_encode($author_signature)),
+ dbesc($diaspora_handle)
+ );
+
+ // if the message isn't already being relayed, notify others
+ // the existence of parent_author_signature means the parent_author or owner
+ // is already relaying.
+
+ proc_run('php','include/notifier.php','comment',$message_id);
+ }
+
+
q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
intval($message_id),
dbesc($author_signed_data),
@@ -1797,7 +1812,7 @@ function diaspora_signed_retraction($importer,$xml,$msg) {
$signed_data = $guid . ';' . $type ;
- $sig = base64_decode($sig);
+ $sig_decode = base64_decode($sig);
if(strcasecmp($diaspora_handle,$msg['author']) == 0) {
$person = $contact;
@@ -1814,22 +1829,21 @@ function diaspora_signed_retraction($importer,$xml,$msg) {
}
}
- if(! rsa_verify($signed_data,$sig,$key,'sha256')) {
+ if(! rsa_verify($signed_data,$sig_decode,$key,'sha256')) {
logger('diaspora_signed_retraction: retraction-owner verification failed.' . print_r($msg,true));
return;
}
if($parent_author_signature) {
- $owner_signed_data = $guid . ';' . $type ;
-
$parent_author_signature = base64_decode($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,$key,'sha256')) {
logger('diaspora_signed_retraction: failed to verify person relaying the retraction (e.g. owner of a post relaying a retracted comment');
return;
}
+
}
if($type === 'StatusMessage' || $type === 'Comment') {
@@ -1839,10 +1853,36 @@ function diaspora_signed_retraction($importer,$xml,$msg) {
);
if(count($r)) {
if(link_compare($r[0]['author-link'],$contact['url'])) {
- q("update item set `deleted` = 1, `changed` = '%s' where `id` = %d limit 1",
+ q("update item set `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = '' where `id` = %d limit 1",
dbesc(datetime_convert()),
intval($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',$r[0]['id']);
+ }
+ }
}
}
}
@@ -2136,10 +2176,28 @@ function diaspora_send_followup($item,$owner,$contact,$public_batch = false) {
function diaspora_send_relay($item,$owner,$contact,$public_batch = false) {
+// I think the first comment or like on a post whose home is our Friendica server is saved as an item
+// as the top-level post owner's contact for writer of the comment or post. Thus, the "uid"
+// on the item is `user`.`id` of the top-level post owner. That user is passed to this function
+// as "$owner."
+//
+// I'm assuming for now that "$owner" will be the user of the top-level post for retractions too. Be
+// aware that another reasonable possibility is that it's the "$owner" of the deleted comment.
+
+// TODO
+// CHECK 1. If we receive a retraction from Diaspora to be relayed by us, we need to insert the signature
+// into the DB and call notifier.php
+// CHECK 2. diaspora_send_retraction() needs to be modified to send
+// Diaspora a retraction for it to relay when appropriate
+// CHECK 3. notifier.php (and delivery.php?) need to be modified to call the right functions for the right
+// retraction situation
+// 4. If possible, modify notifier.php (and delivery.php?) to remove the relayable retraction's signature
+// from the DB after finishing with relaying retractions
+
$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 = $contact['addr'];
@@ -2155,29 +2213,42 @@ function diaspora_send_relay($item,$owner,$contact,$public_batch = false) {
else
return;
+ $like = false;
+ $relay_retract = false;
+ $sql_sign_id = 'iid';
if($item['verb'] === ACTIVITY_LIKE) {
$tpl = get_markup_template('diaspora_like_relay.tpl');
$like = true;
$target_type = 'Post';
$positive = (($item['deleted']) ? 'false' : 'true');
}
- else {
+ elseif(! $item['deleted']) {
$tpl = get_markup_template('diaspora_comment_relay.tpl');
- $like = false;
+ }
+ else {
+ $tpl = get_markup_template('diaspora_relayable_retraction.tpl');
+ $relay_retract = true;
+ $sql_sign_id = 'retract_iid';
+ $target_type = 'Comment';
}
$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
+ // Note that mod/item.php seems to take care of creating a signature for Diaspora for replies
+ // created on our own account
+ //
// 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",
+ $r = q("select * from sign where " . $sql_sign_id . " = %d limit 1",
intval($item['id'])
);
if(count($r)) {
@@ -2196,29 +2267,39 @@ function diaspora_send_relay($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,$owner['uprvkey'],'sha256'));
@@ -2226,14 +2307,15 @@ function diaspora_send_relay($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'],$public_batch)));
@@ -2248,14 +2330,25 @@ function diaspora_send_retraction($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 if the retraction is for a top-level post, or whether it's for a comment
+ if( $item['id'] !== $item['parent'] ) {
+
+ $tpl = get_markup_template('diaspora_relay_retraction.tpl');
+ $target_type = '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)));