X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=mod%2Fdfrn_poll.php;h=436727a78fca603bcb1e00c04ddd5b97a92674bf;hb=a077e63fa58992fe04eeb7f5aa9a865985fa1039;hp=da60eb62921bb9cd99a4554d46a91a7717ff0628;hpb=f5826105bfc514599b2c5b6692bca14ca4bc5d78;p=friendica.git
diff --git a/mod/dfrn_poll.php b/mod/dfrn_poll.php
index da60eb6292..436727a78f 100644
--- a/mod/dfrn_poll.php
+++ b/mod/dfrn_poll.php
@@ -1,58 +1,554 @@
config['dfrn_poll_dfrn_id'] = $_GET['dfrn_id'];
- if(x($_GET,'type'))
- $type = $a->config['dfrn_poll_type'] = $_GET['type'];
- if(x($_GET,'last_update'))
- $last_update = $a->config['dfrn_poll_last_update'] = $_GET['last_update'];
+ $dfrn_id = ((x($_GET,'dfrn_id')) ? $_GET['dfrn_id'] : '');
+ $type = ((x($_GET,'type')) ? $_GET['type'] : 'data');
+ $last_update = ((x($_GET,'last_update')) ? $_GET['last_update'] : '');
+ $destination_url = ((x($_GET,'destination_url')) ? $_GET['destination_url'] : '');
+ $challenge = ((x($_GET,'challenge')) ? $_GET['challenge'] : '');
+ $sec = ((x($_GET,'sec')) ? $_GET['sec'] : '');
+ $dfrn_version = ((x($_GET,'dfrn_version')) ? (float) $_GET['dfrn_version'] : 2.0);
+ $perm = ((x($_GET,'perm')) ? $_GET['perm'] : 'r');
+ $direction = (-1);
- if(! x($dfrn_id))
- return;
+ if(strpos($dfrn_id,':') == 1) {
+ $direction = intval(substr($dfrn_id,0,1));
+ $dfrn_id = substr($dfrn_id,2);
+ }
+
+ if(($dfrn_id === '') && (! x($_POST,'dfrn_id'))) {
+ if((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
+ killme();
+ }
+
+ $user = '';
+ if($a->argc > 1) {
+ $r = q("SELECT `hidewall`,`nickname` FROM `user` WHERE `user`.`nickname` = '%s' LIMIT 1",
+ dbesc($a->argv[1])
+ );
+ if((! count($r)) || (count($r) && $r[0]['hidewall']))
+ killme();
+ $user = $r[0]['nickname'];
+ }
+
+ logger('dfrn_poll: public feed request from ' . $_SERVER['REMOTE_ADDR'] . ' for ' . $user);
+ header("Content-type: application/atom+xml");
+ echo get_feed_for($a, '', $user,$last_update);
+ killme();
+ }
+
+ if(($type === 'profile') && (! strlen($sec))) {
- if((x($type)) && ($type == 'profile')) {
+ $sql_extra = '';
+ switch($direction) {
+ case (-1):
+ $sql_extra = sprintf(" AND ( `dfrn-id` = '%s' OR `issued-id` = '%s' ) ", dbesc($dfrn_id),dbesc($dfrn_id));
+ $my_id = $dfrn_id;
+ break;
+ case 0:
+ $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ $my_id = '1:' . $dfrn_id;
+ break;
+ case 1:
+ $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ $my_id = '0:' . $dfrn_id;
+ break;
+ default:
+ goaway(z_root());
+ break; // NOTREACHED
+ }
- $r = q("SELECT `contact`.*, `user`.`nickname`
+ $r = q("SELECT `contact`.*, `user`.`username`, `user`.`nickname`
FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
- WHERE `issued-id` = '%s' LIMIT 1",
- dbesc($dfrn_id));
+ WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
+ AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
+ dbesc($a->argv[1])
+ );
+
if(count($r)) {
- $s = fetch_url($r[0]['poll'] . '?dfrn_id=' . $dfrn_id . '&type=profile-check');
+
+ $s = fetch_url($r[0]['poll'] . '?dfrn_id=' . $my_id . '&type=profile-check');
+
+ logger("dfrn_poll: old profile returns " . $s, LOGGER_DATA);
+
if(strlen($s)) {
- $xml = simplexml_load_string($s);
+
+ $xml = parse_xml_string($s);
+
if((int) $xml->status == 1) {
$_SESSION['authenticated'] = 1;
$_SESSION['visitor_id'] = $r[0]['id'];
- $_SESSION['sysmsg'] .= "Hi {$r[0]['name']}" . EOL;
+ $_SESSION['visitor_home'] = $r[0]['url'];
+ $_SESSION['visitor_handle'] = $r[0]['addr'];
+ $_SESSION['visitor_visiting'] = $r[0]['uid'];
+ info( sprintf(t('%s welcomes %s'), $r[0]['username'] , $r[0]['name']) . EOL);
// Visitors get 1 day session.
$session_id = session_id();
$expire = time() + 86400;
q("UPDATE `session` SET `expire` = '%s' WHERE `sid` = '%s' LIMIT 1",
dbesc($expire),
- dbesc($session_id));
+ dbesc($session_id)
+ );
}
}
- $profile = ((strlen($r[0]['nickname'])) ? $r[0]['nickname'] : $r[0]['uid']);
- goaway($a->get_baseurl() . "/profile/$profile");
+ $profile = $r[0]['nickname'];
+ goaway((strlen($destination_url)) ? $destination_url : $a->get_baseurl() . '/profile/' . $profile);
+ }
+ goaway(z_root());
+
+ }
+
+ if($type === 'profile-check' && $dfrn_version < 2.2 ) {
+
+ if((strlen($challenge)) && (strlen($sec))) {
+
+ q("DELETE FROM `profile_check` WHERE `expire` < " . intval(time()));
+ $r = q("SELECT * FROM `profile_check` WHERE `sec` = '%s' ORDER BY `expire` DESC LIMIT 1",
+ dbesc($sec)
+ );
+ if(! count($r)) {
+ xml_status(3, 'No ticket');
+ // NOTREACHED
+ }
+ $orig_id = $r[0]['dfrn_id'];
+ if(strpos($orig_id, ':'))
+ $orig_id = substr($orig_id,2);
+
+ $c = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
+ intval($r[0]['cid'])
+ );
+ if(! count($c)) {
+ xml_status(3, 'No profile');
+ }
+ $contact = $c[0];
+
+ $sent_dfrn_id = hex2bin($dfrn_id);
+ $challenge = hex2bin($challenge);
+
+ $final_dfrn_id = '';
+
+ if(($contact['duplex']) && strlen($contact['prvkey'])) {
+ openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
+ openssl_private_decrypt($challenge,$decoded_challenge,$contact['prvkey']);
+ }
+ else {
+ openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
+ openssl_public_decrypt($challenge,$decoded_challenge,$contact['pubkey']);
+ }
+
+ $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
+
+ if(strpos($final_dfrn_id,':') == 1)
+ $final_dfrn_id = substr($final_dfrn_id,2);
+
+ if($final_dfrn_id != $orig_id) {
+ logger('profile_check: ' . $final_dfrn_id . ' != ' . $orig_id, LOGGER_DEBUG);
+ // did not decode properly - cannot trust this site
+ xml_status(3, 'Bad decryption');
+ }
+
+ header("Content-type: text/xml");
+ echo "0$decoded_challenge$sec";
+ killme();
+ // NOTREACHED
+ }
+ else {
+ // old protocol
+
+ switch($direction) {
+ case 1:
+ $dfrn_id = '0:' . $dfrn_id;
+ break;
+ case 0:
+ $dfrn_id = '1:' . $dfrn_id;
+ break;
+ default:
+ break;
+ }
+
+
+ q("DELETE FROM `profile_check` WHERE `expire` < " . intval(time()));
+ $r = q("SELECT * FROM `profile_check` WHERE `dfrn_id` = '%s' ORDER BY `expire` DESC",
+ dbesc($dfrn_id));
+ if(count($r)) {
+ xml_status(1);
+ return; // NOTREACHED
+ }
+ xml_status(0);
+ return; // NOTREACHED
+ }
+ }
+
+}
+
+
+
+function dfrn_poll_post(&$a) {
+
+ $dfrn_id = ((x($_POST,'dfrn_id')) ? $_POST['dfrn_id'] : '');
+ $challenge = ((x($_POST,'challenge')) ? $_POST['challenge'] : '');
+ $url = ((x($_POST,'url')) ? $_POST['url'] : '');
+ $sec = ((x($_POST,'sec')) ? $_POST['sec'] : '');
+ $ptype = ((x($_POST,'type')) ? $_POST['type'] : '');
+ $dfrn_version = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version'] : 2.0);
+ $perm = ((x($_POST,'perm')) ? $_POST['perm'] : 'r');
+
+ if($ptype === 'profile-check') {
+
+ if((strlen($challenge)) && (strlen($sec))) {
+
+ logger('dfrn_poll: POST: profile-check');
+
+ q("DELETE FROM `profile_check` WHERE `expire` < " . intval(time()));
+ $r = q("SELECT * FROM `profile_check` WHERE `sec` = '%s' ORDER BY `expire` DESC LIMIT 1",
+ dbesc($sec)
+ );
+ if(! count($r)) {
+ xml_status(3, 'No ticket');
+ // NOTREACHED
+ }
+ $orig_id = $r[0]['dfrn_id'];
+ if(strpos($orig_id, ':'))
+ $orig_id = substr($orig_id,2);
+
+ $c = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
+ intval($r[0]['cid'])
+ );
+ if(! count($c)) {
+ xml_status(3, 'No profile');
+ }
+ $contact = $c[0];
+
+ $sent_dfrn_id = hex2bin($dfrn_id);
+ $challenge = hex2bin($challenge);
+
+ $final_dfrn_id = '';
+
+ if(($contact['duplex']) && strlen($contact['prvkey'])) {
+ openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
+ openssl_private_decrypt($challenge,$decoded_challenge,$contact['prvkey']);
+ }
+ else {
+ openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
+ openssl_public_decrypt($challenge,$decoded_challenge,$contact['pubkey']);
+ }
+
+ $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
+
+ if(strpos($final_dfrn_id,':') == 1)
+ $final_dfrn_id = substr($final_dfrn_id,2);
+
+ if($final_dfrn_id != $orig_id) {
+ logger('profile_check: ' . $final_dfrn_id . ' != ' . $orig_id, LOGGER_DEBUG);
+ // did not decode properly - cannot trust this site
+ xml_status(3, 'Bad decryption');
+ }
+
+ header("Content-type: text/xml");
+ echo "0$decoded_challenge$sec";
+ killme();
+ // NOTREACHED
+ }
+
+ }
+
+ $direction = (-1);
+ if(strpos($dfrn_id,':') == 1) {
+ $direction = intval(substr($dfrn_id,0,1));
+ $dfrn_id = substr($dfrn_id,2);
+ }
+
+
+ $r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
+ dbesc($dfrn_id),
+ dbesc($challenge)
+ );
+
+ if(! count($r))
+ killme();
+
+ $type = $r[0]['type'];
+ $last_update = $r[0]['last_update'];
+
+ $r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
+ dbesc($dfrn_id),
+ dbesc($challenge)
+ );
+
+
+ $sql_extra = '';
+ switch($direction) {
+ case (-1):
+ $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
+ $my_id = $dfrn_id;
+ break;
+ case 0:
+ $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ $my_id = '1:' . $dfrn_id;
+ break;
+ case 1:
+ $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ $my_id = '0:' . $dfrn_id;
+ break;
+ default:
+ goaway(z_root());
+ break; // NOTREACHED
+ }
+
+
+ $r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 $sql_extra LIMIT 1");
+
+
+ if(! count($r))
+ killme();
+
+ $contact = $r[0];
+ $owner_uid = $r[0]['uid'];
+ $contact_id = $r[0]['id'];
+
+
+ if($type === 'reputation' && strlen($url)) {
+ $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
+ dbesc($url),
+ intval($owner_uid)
+ );
+ $reputation = 0;
+ $text = '';
+
+ if(count($r)) {
+ $reputation = $r[0]['rating'];
+ $text = $r[0]['reason'];
+
+ if($r[0]['id'] == $contact_id) { // inquiring about own reputation not allowed
+ $reputation = 0;
+ $text = '';
+ }
+ }
+
+ echo "
+
+ $url
+ $reputation
+ $text
+
+ ";
+ killme();
+ // NOTREACHED
+ }
+ else {
+
+ // Update the writable flag if it changed
+ logger('dfrn_poll: post request feed: ' . print_r($_POST,true),LOGGER_DATA);
+ if($dfrn_version >= 2.21) {
+ if($perm === 'rw')
+ $writable = 1;
+ else
+ $writable = 0;
+
+ if($writable != $contact['writable']) {
+ q("UPDATE `contact` SET `writable` = %d WHERE `id` = %d LIMIT 1",
+ intval($writable),
+ intval($contact_id)
+ );
+ }
}
- goaway($a->get_baseurl());
+
+ header("Content-type: application/atom+xml");
+ $o = get_feed_for($a,$dfrn_id, $a->argv[1], $last_update, $direction);
+ echo $o;
+ killme();
+
}
+}
- if((x($type)) && ($type == 'profile-check')) {
+function dfrn_poll_content(&$a) {
- q("DELETE FROM `profile_check` WHERE `expire` < " . intval(time()));
- $r = q("SELECT * FROM `profile_check` WHERE `dfrn_id` = '%s' ORDER BY `expire` DESC",
- dbesc($dfrn_id));
- if(count($r))
- xml_status(1);
- xml_status(0);
- return; // NOTREACHED
+ $dfrn_id = ((x($_GET,'dfrn_id')) ? $_GET['dfrn_id'] : '');
+ $type = ((x($_GET,'type')) ? $_GET['type'] : 'data');
+ $last_update = ((x($_GET,'last_update')) ? $_GET['last_update'] : '');
+ $destination_url = ((x($_GET,'destination_url')) ? $_GET['destination_url'] : '');
+ $sec = ((x($_GET,'sec')) ? $_GET['sec'] : '');
+ $dfrn_version = ((x($_GET,'dfrn_version')) ? (float) $_GET['dfrn_version'] : 2.0);
+ $perm = ((x($_GET,'perm')) ? $_GET['perm'] : 'r');
+
+ $direction = (-1);
+ if(strpos($dfrn_id,':') == 1) {
+ $direction = intval(substr($dfrn_id,0,1));
+ $dfrn_id = substr($dfrn_id,2);
}
+
+ if($dfrn_id != '') {
+ // initial communication from external contact
+ $hash = random_string();
+
+ $status = 0;
+
+ $r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
+
+ if($type !== 'profile') {
+ $r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` , `type`, `last_update` )
+ VALUES( '%s', '%s', '%s', '%s', '%s' ) ",
+ dbesc($hash),
+ dbesc($dfrn_id),
+ intval(time() + 60 ),
+ dbesc($type),
+ dbesc($last_update)
+ );
+ }
+ $sql_extra = '';
+ switch($direction) {
+ case (-1):
+ if($type === 'profile')
+ $sql_extra = sprintf(" AND ( `dfrn-id` = '%s' OR `issued-id` = '%s' ) ", dbesc($dfrn_id),dbesc($dfrn_id));
+ else
+ $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
+ $my_id = $dfrn_id;
+ break;
+ case 0:
+ $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ $my_id = '1:' . $dfrn_id;
+ break;
+ case 1:
+ $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
+ $my_id = '0:' . $dfrn_id;
+ break;
+ default:
+ goaway(z_root());
+ break; // NOTREACHED
+ }
+
+ $nickname = $a->argv[1];
+
+ $r = q("SELECT `contact`.*, `user`.`username`, `user`.`nickname`
+ FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
+ WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
+ AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
+ dbesc($nickname)
+ );
+
+ if(count($r)) {
+
+ $challenge = '';
+ $encrypted_id = '';
+ $id_str = $my_id . '.' . mt_rand(1000,9999);
+
+ if($r[0]['duplex'] && strlen($r[0]['pubkey'])) {
+ openssl_public_encrypt($hash,$challenge,$r[0]['pubkey']);
+ openssl_public_encrypt($id_str,$encrypted_id,$r[0]['pubkey']);
+ }
+ else {
+ openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
+ openssl_private_encrypt($id_str,$encrypted_id,$r[0]['prvkey']);
+ }
+
+ $challenge = bin2hex($challenge);
+ $encrypted_id = bin2hex($encrypted_id);
+ }
+ else {
+ $status = 1;
+ $challenge = '';
+ $encrypted_id = '';
+ }
+
+ if(($type === 'profile') && (strlen($sec))) {
+
+ // URL reply
+
+ if($dfrn_version < 2.2) {
+ $s = fetch_url($r[0]['poll']
+ . '?dfrn_id=' . $encrypted_id
+ . '&type=profile-check'
+ . '&dfrn_version=' . DFRN_PROTOCOL_VERSION
+ . '&challenge=' . $challenge
+ . '&sec=' . $sec
+ );
+ }
+ else {
+ $s = post_url($r[0]['poll'], array(
+ 'dfrn_id' => $encrypted_id,
+ 'type' => 'profile-check',
+ 'dfrn_version' => DFRN_PROTOCOL_VERSION,
+ 'challenge' => $challenge,
+ 'sec' => $sec
+ ));
+ }
+
+ $profile = ((count($r) && $r[0]['nickname']) ? $r[0]['nickname'] : $nickname);
+
+ switch($destination_url) {
+ case 'profile':
+ $dest = $a->get_baseurl() . '/profile/' . $profile . '?tab=profile';
+ break;
+ case 'photos':
+ $dest = $a->get_baseurl() . '/photos/' . $profile;
+ break;
+ case 'status':
+ case '':
+ $dest = $a->get_baseurl() . '/profile/' . $profile;
+ break;
+ default:
+ $dest = $destination_url;
+ break;
+ }
+
+ logger("dfrn_poll: sec profile: " . $s, LOGGER_DATA);
+
+ if(strlen($s) && strstr($s,'challenge . ' expecting ' . $hash);
+ logger('dfrn_poll: secure profile: sec: ' . $xml->sec . ' expecting ' . $sec);
+
+
+ if(((int) $xml->status == 0) && ($xml->challenge == $hash) && ($xml->sec == $sec)) {
+ $_SESSION['authenticated'] = 1;
+ $_SESSION['visitor_id'] = $r[0]['id'];
+ $_SESSION['visitor_home'] = $r[0]['url'];
+ $_SESSION['visitor_visiting'] = $r[0]['uid'];
+ info( sprintf(t('%s welcomes %s'), $r[0]['username'] , $r[0]['name']) . EOL);
+ // Visitors get 1 day session.
+ $session_id = session_id();
+ $expire = time() + 86400;
+ q("UPDATE `session` SET `expire` = '%s' WHERE `sid` = '%s' LIMIT 1",
+ dbesc($expire),
+ dbesc($session_id)
+ );
+ }
+
+ goaway($dest);
+ }
+ goaway($dest);
+ // NOTREACHED
+
+ }
+ else {
+ // XML reply
+ header("Content-type: text/xml");
+ echo '' . "\r\n"
+ . '' . "\r\n"
+ . "\t" . '' . $status . '' . "\r\n"
+ . "\t" . '' . DFRN_PROTOCOL_VERSION . '' . "\r\n"
+ . "\t" . '' . $encrypted_id . '' . "\r\n"
+ . "\t" . '' . $challenge . '' . "\r\n"
+ . '' . "\r\n" ;
+ killme();
+ // NOTREACHED
+ }
+ }
}
+
+