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Merge pull request #3994 from zeroadam/Salmon-#3878

Browse source 
Salmon move to src
This commit is contained in:
Hypolite Petovan 2017-12-02 10:21:08 -05:00 committed by GitHub
commit 74973d1ae0
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GPG key ID: 4AEE18F83AFDEB23
11 changed files with 250 additions and 230 deletions
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10
include/crypto.php
View file

@ -91,9 +91,9 @@ function metopem($m, $e) {
return $key;
}
function pubrsatome($key,&$m,&$e) {
require_once('library/asn1.php');
require_once('include/salmon.php');
function pubrsatome($key, &$m, &$e)
{
require_once 'library/asn1.php';
$lines = explode("\n", $key);
unset($lines[0]);
@ -117,8 +117,8 @@ function pemtorsa($key) {
return metorsa($m, $e);
}
function pemtome($key, &$m, &$e) {
require_once('include/salmon.php');
function pemtome($key, &$m, &$e)
{
$lines = explode("\n", $key);
unset($lines[0]);
unset($lines[count($lines)]);

4
include/follow.php
View file

@ -12,9 +12,9 @@ use Friendica\Object\Contact;
use Friendica\Protocol\Diaspora;
use Friendica\Protocol\OStatus;
use Friendica\Protocol\PortableContact;
use Friendica\Protocol\Salmon;
require_once 'include/group.php';
require_once 'include/salmon.php';
function update_contact($id) {
/*
@ -268,7 +268,7 @@ function new_contact($uid, $url, $interactive = false, $network = '') {
$item['verb'] = ACTIVITY_FOLLOW;
$item['follow'] = $contact["url"];
$slap = OStatus::salmon($item, $r[0]);
slapper($r[0], $contact['notify'], $slap);
Salmon::slapper($r[0], $contact['notify'], $slap);
}
if ($contact['network'] == NETWORK_DIASPORA) {

1
include/items.php
View file

@ -17,7 +17,6 @@ use Friendica\Util\Lock;
require_once 'include/bbcode.php';
require_once 'include/oembed.php';
require_once 'include/salmon.php';
require_once 'include/crypto.php';
require_once 'include/tags.php';
require_once 'include/files.php';

185
include/salmon.php
View file

@ -1,185 +0,0 @@
<?php
/**
* @file include/salmon.php
*/
use Friendica\Network\Probe;
use Friendica\Util\XML;
require_once 'include/crypto.php';
function get_salmon_key($uri, $keyhash)
{
$ret = array();
logger('Fetching salmon key for '.$uri);
$arr = Probe::lrdd($uri);
if (is_array($arr)) {
foreach ($arr as $a) {
if ($a['@attributes']['rel'] === 'magic-public-key') {
$ret[] = $a['@attributes']['href'];
}
}
} else {
return '';
}
// We have found at least one key URL
// If it's inline, parse it - otherwise get the key
if (count($ret) > 0) {
for ($x = 0; $x < count($ret); $x ++) {
if (substr($ret[$x], 0, 5) === 'data:') {
if (strstr($ret[$x], ',')) {
$ret[$x] = substr($ret[$x], strpos($ret[$x], ',') + 1);
} else {
$ret[$x] = substr($ret[$x], 5);
}
} elseif (normalise_link($ret[$x]) == 'http://') {
$ret[$x] = fetch_url($ret[$x]);
}
}
}
logger('Key located: ' . print_r($ret, true));
if (count($ret) == 1) {
// We only found one one key so we don't care if the hash matches.
// If it's the wrong key we'll find out soon enough because
// message verification will fail. This also covers some older
// software which don't supply a keyhash. As long as they only
// have one key we'll be right.
return $ret[0];
} else {
foreach ($ret as $a) {
$hash = base64url_encode(hash('sha256', $a));
if ($hash == $keyhash) {
return $a;
}
}
}
return '';
}
function slapper($owner, $url, $slap)
{
// does contact have a salmon endpoint?
if (! strlen($url)) {
return;
}
if (! $owner['sprvkey']) {
logger(sprintf("user '%s' (%d) does not have a salmon private key. Send failed.",
$owner['username'], $owner['uid']));
return;
}
logger('slapper called for '.$url.'. Data: ' . $slap);
// create a magic envelope
$data = base64url_encode($slap);
$data_type = 'application/atom+xml';
$encoding = 'base64url';
$algorithm = 'RSA-SHA256';
$keyhash = base64url_encode(hash('sha256', salmon_key($owner['spubkey'])), true);
$precomputed = '.' . base64url_encode($data_type) . '.' . base64url_encode($encoding) . '.' . base64url_encode($algorithm);
// GNU Social format
$signature = base64url_encode(rsa_sign($data . $precomputed, $owner['sprvkey']));
// Compliant format
$signature2 = base64url_encode(rsa_sign(str_replace('=', '', $data . $precomputed), $owner['sprvkey']));
// Old Status.net format
$signature3 = base64url_encode(rsa_sign($data, $owner['sprvkey']));
// At first try the non compliant method that works for GNU Social
$xmldata = array("me:env" => array("me:data" => $data,
"@attributes" => array("type" => $data_type),
"me:encoding" => $encoding,
"me:alg" => $algorithm,
"me:sig" => $signature,
"@attributes2" => array("key_id" => $keyhash)));
$namespaces = array("me" => "http://salmon-protocol.org/ns/magic-env");
$salmon = XML::fromArray($xmldata, $xml, false, $namespaces);
// slap them
post_url($url, $salmon, array(
'Content-type: application/magic-envelope+xml',
'Content-length: ' . strlen($salmon)
));
$a = get_app();
$return_code = $a->get_curl_code();
// check for success, e.g. 2xx
if ($return_code > 299) {
logger('GNU Social salmon failed. Falling back to compliant mode');
// Now try the compliant mode that normally isn't used for GNU Social
$xmldata = array("me:env" => array("me:data" => $data,
"@attributes" => array("type" => $data_type),
"me:encoding" => $encoding,
"me:alg" => $algorithm,
"me:sig" => $signature2,
"@attributes2" => array("key_id" => $keyhash)));
$namespaces = array("me" => "http://salmon-protocol.org/ns/magic-env");
$salmon = XML::fromArray($xmldata, $xml, false, $namespaces);
// slap them
post_url($url, $salmon, array(
'Content-type: application/magic-envelope+xml',
'Content-length: ' . strlen($salmon)
));
$return_code = $a->get_curl_code();
}
if ($return_code > 299) {
logger('compliant salmon failed. Falling back to old status.net');
// Last try. This will most likely fail as well.
$xmldata = array("me:env" => array("me:data" => $data,
"@attributes" => array("type" => $data_type),
"me:encoding" => $encoding,
"me:alg" => $algorithm,
"me:sig" => $signature3,
"@attributes2" => array("key_id" => $keyhash)));
$namespaces = array("me" => "http://salmon-protocol.org/ns/magic-env");
$salmon = XML::fromArray($xmldata, $xml, false, $namespaces);
// slap them
post_url($url, $salmon, array(
'Content-type: application/magic-envelope+xml',
'Content-length: ' . strlen($salmon))
);
$return_code = $a->get_curl_code();
}
logger('slapper for '.$url.' returned ' . $return_code);
if (! $return_code) {
return -1;
}
if (($return_code == 503) && (stristr($a->get_curl_headers(), 'retry-after'))) {
return -1;
}
return ((($return_code >= 200) && ($return_code < 300)) ? 0 : 1);
}

39
mod/post.php
View file

@ -1,54 +1,55 @@
<?php
/**
* Zot endpoint
* @file mod/post.php
* @brief Zot endpoint
*/
use Friendica\App;
use Friendica\Database\DBM;
use dba;
require_once('include/salmon.php');
require_once('include/crypto.php');
require_once 'include/crypto.php';
// not yet ready for prime time
//require_once('include/zot.php');
function post_post(App $a) {
/**
* @param object $a App
* @return void
*/
function post_post(App $a)
{
$bulk_delivery = false;
if ($a->argc == 1) {
$bulk_delivery = true;
}
else {
} else {
$nickname = $a->argv[2];
$r = q("SELECT * FROM `user` WHERE `nickname` = '%s'
AND `account_expired` = 0 AND `account_removed` = 0 LIMIT 1",
dbesc($nickname)
);
$r = dba::select('user', array(), array('nickname' => $nickname, 'account_expired' => 0, 'account_removed' => 0), array('limit' => 1));
if (! DBM::is_result($r)) {
http_status_exit(500);
}
$importer = $r[0];
$importer = $r;
}
$xml = file_get_contents('php://input');
logger('mod-post: new zot: ' . $xml, LOGGER_DATA);
if(! $xml)
if (! $xml) {
http_status_exit(500);
}
$msg = zot_decode($importer,$xml);
$msg = zot_decode($importer, $xml);
logger('mod-post: decoded msg: ' . print_r($msg,true), LOGGER_DATA);
logger('mod-post: decoded msg: ' . print_r($msg, true), LOGGER_DATA);
if(! is_array($msg))
if (! is_array($msg)) {
http_status_exit(500);
}
$ret = 0;
$ret = zot_incoming($bulk_delivery, $importer,$msg);
$ret = zot_incoming($bulk_delivery, $importer, $msg);
http_status_exit(($ret) ? $ret : 200);
// NOTREACHED
}

17
mod/receive.php
View file

@ -1,7 +1,7 @@
<?php
/**
* Diaspora endpoint
* @file mod/receive.php
* @brief Diaspora endpoint
*/
use Friendica\App;
@ -9,10 +9,14 @@ use Friendica\Core\Config;
use Friendica\Database\DBM;
use Friendica\Protocol\Diaspora;
require_once('include/salmon.php');
require_once('include/crypto.php');
require_once 'include/crypto.php';
function receive_post(App $a) {
/**
* @param object $a App
* @return void
*/
function receive_post(App $a)
{
$enabled = intval(Config::get('system', 'diaspora_enabled'));
if (!$enabled) {
logger('mod-diaspora: disabled');
@ -44,7 +48,7 @@ function receive_post(App $a) {
if (!$xml) {
$postdata = file_get_contents("php://input");
if ($postdata == '') {
if ($postdata == '') {
http_status_exit(500);
}
@ -80,4 +84,3 @@ function receive_post(App $a) {
http_status_exit(($ret) ? 200 : 500);
// NOTREACHED
}

4
mod/salmon.php
View file

@ -6,8 +6,8 @@ use Friendica\App;
use Friendica\Core\PConfig;
use Friendica\Database\DBM;
use Friendica\Protocol\OStatus;
use Friendica\Protocol\Salmon;
require_once 'include/salmon.php';
require_once 'include/crypto.php';
require_once 'include/items.php';
require_once 'include/follow.php';
@ -103,7 +103,7 @@ function salmon_post(App $a) {
logger('mod-salmon: Fetching key for ' . $author_link);
$key = get_salmon_key($author_link,$keyhash);
$key = Salmon::getKey($author_link, $keyhash);
if(! $key) {
logger('mod-salmon: Could not retrieve author key.');

4
src/Object/Contact.php
View file

@ -17,6 +17,7 @@ use Friendica\Object\Photo;
use Friendica\Protocol\Diaspora;
use Friendica\Protocol\DFRN;
use Friendica\Protocol\OStatus;
use Friendica\Protocol\Salmon;
use dba;
require_once 'boot.php';
@ -71,8 +72,7 @@ class Contact extends BaseObject
$slap = OStatus::salmon($item, $user);
if ((x($contact, 'notify')) && (strlen($contact['notify']))) {
require_once 'include/salmon.php';
slapper($user, $contact['notify'], $slap);
Salmon::slapper($user, $contact['notify'], $slap);
}
} elseif ($contact['network'] === NETWORK_DIASPORA) {
Diaspora::sendUnshare($user, $contact);

204
src/Protocol/Salmon.php Normal file
View file

@ -0,0 +1,204 @@
<?php
/**
* @file src/Protocol/Salmon.php
*/
namespace Friendica\Protocol;
use Friendica\Network\Probe;
use Friendica\Util\XML;
require_once 'include/crypto.php';
/**
* @brief Salmon Protocol class
* The Salmon Protocol is a message exchange protocol running over HTTP designed to decentralize commentary
* and annotations made against newsfeed articles such as blog posts.
*/
class Salmon
{
/**
* @param string $uri Uniform Resource Identifier
* @param string $keyhash encoded key
* @return mixed
*/
public static function getKey($uri, $keyhash)
{
$ret = array();
logger('Fetching salmon key for '.$uri);
$arr = Probe::lrdd($uri);
if (is_array($arr)) {
foreach ($arr as $a) {
if ($a['@attributes']['rel'] === 'magic-public-key') {
$ret[] = $a['@attributes']['href'];
}
}
} else {
return '';
}
// We have found at least one key URL
// If it's inline, parse it - otherwise get the key
if (count($ret) > 0) {
for ($x = 0; $x < count($ret); $x ++) {
if (substr($ret[$x], 0, 5) === 'data:') {
if (strstr($ret[$x], ',')) {
$ret[$x] = substr($ret[$x], strpos($ret[$x], ',') + 1);
} else {
$ret[$x] = substr($ret[$x], 5);
}
} elseif (normalise_link($ret[$x]) == 'http://') {
$ret[$x] = fetch_url($ret[$x]);
}
}
}
logger('Key located: ' . print_r($ret, true));
if (count($ret) == 1) {
// We only found one one key so we don't care if the hash matches.
// If it's the wrong key we'll find out soon enough because
// message verification will fail. This also covers some older
// software which don't supply a keyhash. As long as they only
// have one key we'll be right.
return $ret[0];
} else {
foreach ($ret as $a) {
$hash = base64url_encode(hash('sha256', $a));
if ($hash == $keyhash) {
return $a;
}
}
}
return '';
}
/**
* @param array $owner owner
* @param string $url url
* @param string $slap slap
* @return integer
*/
public static function slapper($owner, $url, $slap)
{
// does contact have a salmon endpoint?
if (! strlen($url)) {
return;
}
if (! $owner['sprvkey']) {
logger(sprintf("user '%s' (%d) does not have a salmon private key. Send failed.",
$owner['username'], $owner['uid']));
return;
}
logger('slapper called for '.$url.'. Data: ' . $slap);
// create a magic envelope
$data = base64url_encode($slap);
$data_type = 'application/atom+xml';
$encoding = 'base64url';
$algorithm = 'RSA-SHA256';
$keyhash = base64url_encode(hash('sha256', salmon_key($owner['spubkey'])), true);
$precomputed = '.' . base64url_encode($data_type) . '.' . base64url_encode($encoding) . '.' . base64url_encode($algorithm);
// GNU Social format
$signature = base64url_encode(rsa_sign($data . $precomputed, $owner['sprvkey']));
// Compliant format
$signature2 = base64url_encode(rsa_sign(str_replace('=', '', $data . $precomputed), $owner['sprvkey']));
// Old Status.net format
$signature3 = base64url_encode(rsa_sign($data, $owner['sprvkey']));
// At first try the non compliant method that works for GNU Social
$xmldata = array("me:env" => array("me:data" => $data,
"@attributes" => array("type" => $data_type),
"me:encoding" => $encoding,
"me:alg" => $algorithm,
"me:sig" => $signature,
"@attributes2" => array("key_id" => $keyhash)));
$namespaces = array("me" => "http://salmon-protocol.org/ns/magic-env");
$salmon = XML::fromArray($xmldata, $xml, false, $namespaces);
// slap them
post_url($url, $salmon, array(
'Content-type: application/magic-envelope+xml',
'Content-length: ' . strlen($salmon)
));
$a = get_app();
$return_code = $a->get_curl_code();
// check for success, e.g. 2xx
if ($return_code > 299) {
logger('GNU Social salmon failed. Falling back to compliant mode');
// Now try the compliant mode that normally isn't used for GNU Social
$xmldata = array("me:env" => array("me:data" => $data,
"@attributes" => array("type" => $data_type),
"me:encoding" => $encoding,
"me:alg" => $algorithm,
"me:sig" => $signature2,
"@attributes2" => array("key_id" => $keyhash)));
$namespaces = array("me" => "http://salmon-protocol.org/ns/magic-env");
$salmon = XML::fromArray($xmldata, $xml, false, $namespaces);
// slap them
post_url($url, $salmon, array(
'Content-type: application/magic-envelope+xml',
'Content-length: ' . strlen($salmon)
));
$return_code = $a->get_curl_code();
}
if ($return_code > 299) {
logger('compliant salmon failed. Falling back to old status.net');
// Last try. This will most likely fail as well.
$xmldata = array("me:env" => array("me:data" => $data,
"@attributes" => array("type" => $data_type),
"me:encoding" => $encoding,
"me:alg" => $algorithm,
"me:sig" => $signature3,
"@attributes2" => array("key_id" => $keyhash)));
$namespaces = array("me" => "http://salmon-protocol.org/ns/magic-env");
$salmon = XML::fromArray($xmldata, $xml, false, $namespaces);
// slap them
post_url($url, $salmon, array(
'Content-type: application/magic-envelope+xml',
'Content-length: ' . strlen($salmon))
);
$return_code = $a->get_curl_code();
}
logger('slapper for '.$url.' returned ' . $return_code);
if (! $return_code) {
return -1;
}
if (($return_code == 503) && (stristr($a->get_curl_headers(), 'retry-after'))) {
return -1;
}
return (($return_code >= 200) && ($return_code < 300)) ? 0 : 1;
}
}

6
src/Worker/Notifier.php
View file

@ -11,11 +11,11 @@ use Friendica\Network\Probe;
use Friendica\Object\Contact;
use Friendica\Protocol\Diaspora;
use Friendica\Protocol\OStatus;
use Friendica\Protocol\Salmon;
use dba;
require_once 'include/queue_fn.php';
require_once 'include/html2plain.php';
require_once 'include/salmon.php';
require_once 'include/datetime.php';
require_once 'include/items.php';
require_once 'include/bbcode.php';
@ -505,11 +505,11 @@ class Notifier {
// They are especially used for notifications to OStatus users that don't follow us.
if ($slap && count($url_recipients) && ($public_message || $push_notify) && $normal_mode) {
if (!Config::get('system','dfrn_only')) {
if (!Config::get('system', 'dfrn_only')) {
foreach ($url_recipients as $url) {
if ($url) {
logger('notifier: urldelivery: ' . $url);
$deliver_status = slapper($owner,$url,$slap);
$deliver_status = Salmon::slapper($owner, $url, $slap);
/// @TODO Redeliver/queue these items on failure, though there is no contact record
}
}

6
src/Worker/Queue.php
View file

@ -1,9 +1,7 @@
<?php
/**
* @file src/Worker/Queue.php
*/
namespace Friendica\Worker;
use Friendica\Core\Cache;
@ -13,13 +11,13 @@ use Friendica\Database\DBM;
use Friendica\Protocol\Diaspora;
use Friendica\Protocol\DFRN;
use Friendica\Protocol\PortableContact;
use Friendica\Protocol\Salmon;
use dba;
require_once 'include/queue_fn.php';
require_once 'include/datetime.php';
require_once 'include/items.php';
require_once 'include/bbcode.php';
require_once 'include/salmon.php';
class Queue
{
@ -141,7 +139,7 @@ class Queue
case NETWORK_OSTATUS:
if ($contact['notify']) {
logger('queue: slapdelivery: item ' . $q_item['id'] . ' for ' . $contact['name'] . ' <' . $contact['url'] . '>');
$deliver_status = slapper($owner, $contact['notify'], $data);
$deliver_status = Salmon::slapper($owner, $contact['notify'], $data);
if ($deliver_status == (-1)) {
update_queue_time($q_item['id']);