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bring Diaspora message signing back to the source author - whether they like it or not.

This commit is contained in:
Friendika 2011-08-28 19:22:27 -07:00
parent 030dcbd467
commit f29f228463
6 changed files with 107 additions and 33 deletions
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2
boot.php
View File

@ -7,7 +7,7 @@ require_once('include/text.php');
require_once("include/pgettext.php");
define ( 'FRIENDIKA_VERSION', '2.2.1085' );
define ( 'FRIENDIKA_VERSION', '2.2.1086' );
define ( 'DFRN_PROTOCOL_VERSION', '2.21' );
define ( 'DB_UPDATE_VERSION', 1083 );

5
include/delivery.php
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@ -77,7 +77,10 @@ function delivery_run($argv, $argc){
$uid = $r[0]['uid'];
$updated = $r[0]['edited'];
$items = q("SELECT * FROM `item` WHERE `parent` = %d ORDER BY `id` ASC",
$items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d ORDER BY `id` ASC",
intval($parent_id)
);

53
include/diaspora.php
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@ -1063,18 +1063,6 @@ function diaspora_send_relay($item,$owner,$contact) {
$body = $item['body'];
$itemcontact = q("select * from contact where `id` = %d limit 1",
intval($item['contact-id'])
);
if(count($itemcontact)) {
if(! $itemcontact[0]['self']) {
$prefix = sprintf( t('[Relayed] Comment authored by %s from network %s'),
'['. $item['author-name'] . ']' . '(' . $item['author-link'] . ')',
network_to_name($itemcontact['network'])) . "\n";
$body = $prefix . $body;
}
}
$text = html_entity_decode(bb2diaspora($body));
// fetch the original signature if somebody sent the post to us to relay
@ -1092,23 +1080,34 @@ function diaspora_send_relay($item,$owner,$contact) {
}
else {
if($like)
$signed_text = $item['guid'] . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $myaddr;
else
$signed_text = $item['guid'] . ';' . $parent_guid . ';' . $text . ';' . $myaddr;
$authorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha'));
q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
intval($item['id']),
dbesc($signed_text),
dbesc(base64_encode($authorsig)),
dbesc($myaddr)
$itemcontact = q("select * from contact where `id` = %d limit 1",
intval($item['contact-id'])
);
if(count($itemcontact)) {
if(! $itemcontact[0]['self']) {
$prefix = sprintf( t('[Relayed] Comment authored by %s from network %s'),
'['. $item['author-name'] . ']' . '(' . $item['author-link'] . ')',
network_to_name($itemcontact['network'])) . "\n";
$body = $prefix . $body;
}
}
else {
if($like)
$signed_text = $item['guid'] . ';' . $target_type . ';' . $parent_guid . ';' . $positive . ';' . $myaddr;
else
$signed_text = $item['guid'] . ';' . $parent_guid . ';' . $text . ';' . $myaddr;
$authorsig = base64_encode(rsa_sign($signed_text,$owner['uprvkey'],'sha'));
q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
intval($item['id']),
dbesc($signed_text),
dbesc(base64_encode($authorsig)),
dbesc($myaddr)
);
}
}
// sign it

48
include/items.php
View File

@ -112,8 +112,10 @@ function get_feed_for(&$a, $dfrn_id, $owner_nick, $last_update, $direction = 0)
`contact`.`name`, `contact`.`photo`, `contact`.`url`,
`contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
`contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
`contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`
`contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`,
`sign`.`signed_text`, `sign`.`signature`, `sign`.`signer`
FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`
WHERE `item`.`uid` = %d AND `item`.`visible` = 1 AND `item`.`parent` != 0
AND `item`.`wall` = 1 AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
@ -363,6 +365,18 @@ function get_atom_elements($feed,$item) {
$res['app'] = 'OStatus';
}
// base64 encoded json structure representing Diaspora signature
$dsig = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_signature');
if($dsig) {
$res['dsprsig'] = unxmlify($dsig[0]['data']);
}
$dguid = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_guid');
if($dguid)
$res['guid'] = unxmlify($dguid[0]['data']);
/**
* If there's a copy of the body content which is guaranteed to have survived mangling in transit, use it.
*/
@ -659,6 +673,15 @@ function encode_rel_links($links) {
function item_store($arr,$force_parent = false) {
// If a Diaspora signature structure was passed in, pull it out of the
// item array and set it aside for later storage.
$dsprsig = null;
if(x($arr,'dsprsig')) {
$dsprsig = json_decode(base64_decode($arr['dsprsig']));
unset($arr['dsprsig']);
}
if($arr['gravity'])
$arr['gravity'] = intval($arr['gravity']);
elseif($arr['parent-uri'] == $arr['uri'])
@ -835,6 +858,16 @@ function item_store($arr,$force_parent = false) {
intval($current_post)
);
if($dsprsig) {
q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
intval($current_post),
dbesc($dsprsig->signed_text),
dbesc($dsprsig->signature),
dbesc($dsprsig->signer)
);
}
/**
* If this is now the last-child, force all _other_ children of this parent to *not* be last-child
*/
@ -1670,10 +1703,19 @@ function atom_entry($item,$type,$author,$owner,$comment = false) {
$o .= '<dfrn:private>1</dfrn:private>' . "\r\n";
if($item['extid'])
$o .= '<dfrn:extid>' . $item['extid'] . '</dfrn:extid>' . "\r\n";
$o .= '<dfrn:extid>' . xmlify($item['extid']) . '</dfrn:extid>' . "\r\n";
if($item['app'])
$o .= '<statusnet:notice_info local_id="' . $item['id'] . '" source="' . $item['app'] . '" ></statusnet:notice_info>';
$o .= '<statusnet:notice_info local_id="' . $item['id'] . '" source="' . xmlify($item['app']) . '" ></statusnet:notice_info>' . "\r\n";
if($item['guid'])
$o .= '<dfrn:diaspora_guid>' . $item['guid'] . '</dfrn:diaspora_guid>' . "\r\n";
if($item['signed_text']) {
$sign = base64_encode(json_encode(array('signed_text' => $item['signed_text'],'signature' => $item['signature'],'signer' => $item['signer'])));
$o .= '<dfrn:diaspora_signature>' . xmlify($sign) . '</dfrn:diaspora_signature>' . "\r\n";
}
$verb = construct_verb($item);
$o .= '<as:verb>' . xmlify($verb) . '</as:verb>' . "\r\n";
$actobj = construct_activity_object($item);

3
include/notifier.php
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@ -109,7 +109,8 @@ function notifier_run($argv, $argc){
$uid = $r[0]['uid'];
$updated = $r[0]['edited'];
$items = q("SELECT * FROM `item` WHERE `parent` = %d ORDER BY `id` ASC",
$items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d ORDER BY `id` ASC",
intval($parent_id)
);

29
mod/item.php
View File

@ -15,6 +15,8 @@
*
*/
require_once('include/crypto.php');
function item_post(&$a) {
if((! local_user()) && (! remote_user()))
@ -674,6 +676,27 @@ function item_post(&$a) {
pop_lang();
}
// We won't be able to sign Diaspora comments for authenticated visitors - we don't have their private key
if($self) {
require_once('include/bb2diaspora.php');
$signed_body = html_entity_decode(bb2diaspora($datarray['body']));
$myaddr = $a->user['nickname'] . '@' . substr($a->get_baseurl(), strpos($a->get_baseurl(),'://') + 3);
if($datarray['verb'] === ACTIVITY_LIKE)
$signed_text = $datarray['guid'] . ';' . 'Post' . ';' . $parent_item['guid'] . ';' . 'true' . ';' . $myaddr;
else
$signed_text = $datarray['guid'] . ';' . $parent_item['guid'] . ';' . $signed_body . ';' . $myaddr;
$authorsig = base64_encode(rsa_sign($signed_text,$a->user['prvkey'],'sha'));
q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
intval($post_id),
dbesc($signed_text),
dbesc(base64_encode($authorsig)),
dbesc($myaddr)
);
}
}
else {
$parent = $post_id;
@ -799,6 +822,12 @@ function item_post(&$a) {
}
}
logger('post_complete');
// figure out how to return, depending on from whence we came