diff options
Diffstat (limited to 'mod/dfrn_poll.php')
| -rw-r--r-- | mod/dfrn_poll.php | 562 |
1 files changed, 0 insertions, 562 deletions
diff --git a/mod/dfrn_poll.php b/mod/dfrn_poll.php deleted file mode 100644 index 89b72859a..000000000 --- a/mod/dfrn_poll.php +++ /dev/null @@ -1,562 +0,0 @@ -<?php - - - -require_once('include/items.php'); -require_once('include/auth.php'); - - -function dfrn_poll_init(&$a) { - - - $dfrn_id = ((x($_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'); - - $direction = (-1); - - - if(strpos($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))) { - - $sql_extra = ''; - switch($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`.`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' $sql_extra LIMIT 1", - dbesc($a->argv[1]) - ); - - if(count($r)) { - - $s = fetch_url($r[0]['poll'] . '?dfrn_id=' . $my_id . '&type=profile-check'); - - logger("dfrn_poll: old profile returns " . $s, LOGGER_DATA); - - if(strlen($s)) { - - $xml = parse_xml_string($s); - - if((int) $xml->status == 1) { - $_SESSION['authenticated'] = 1; - if(! x($_SESSION,'remote')) - $_SESSION['remote'] = array(); - - $_SESSION['remote'][] = array('cid' => $r[0]['id'],'uid' => $r[0]['uid'],'url' => $r[0]['url']); - - $_SESSION['visitor_id'] = $r[0]['id']; - $_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) - ); - } - } - $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 . ' != ' . $orig_id, LOGGER_DEBUG); - // did not decode properly - cannot trust this site - xml_status(3, 'Bad decryption'); - } - - header("Content-type: text/xml"); - echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?><dfrn_poll><status>0</status><challenge>$decoded_challenge</challenge><sec>$sec</sec></dfrn_poll>"; - killme(); - // NOTREACHED - } - else { - // old protocol - - switch($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 . ' != ' . $orig_id, LOGGER_DEBUG); - // did not decode properly - cannot trust this site - xml_status(3, 'Bad decryption'); - } - - header("Content-type: text/xml"); - echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?><dfrn_poll><status>0</status><challenge>$decoded_challenge</challenge><sec>$sec</sec></dfrn_poll>"; - 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; - $text = ''; - } - } - - echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?> - <reputation> - <url>$url</url> - <rating>$reputation</rating> - <description>$text</description> - </reputation> - "; - 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) - ); - } - } - - header("Content-type: application/atom+xml"); - $o = get_feed_for($a,$dfrn_id, $a->argv[1], $last_update, $direction); - echo $o; - killme(); - - } -} - -function dfrn_poll_content(&$a) { - - $dfrn_id = ((x($_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($r[0]['pubkey'])) || (! strlen($r[0]['prvkey']))) { - 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,'<?xml')) { - - $xml = parse_xml_string($s); - - logger('dfrn_poll: profile: parsed xml: ' . print_r($xml,true), LOGGER_DATA); - - logger('dfrn_poll: secure profile: challenge: ' . $xml->challenge . ' expecting ' . $hash); - logger('dfrn_poll: secure profile: sec: ' . $xml->sec . ' expecting ' . $sec); - - - if(((int) $xml->status == 0) && ($xml->challenge == $hash) && ($xml->sec == $sec)) { - $_SESSION['authenticated'] = 1; - if(! x($_SESSION,'remote')) - $_SESSION['remote'] = array(); - $_SESSION['remote'][] = array('cid' => $r[0]['id'],'uid' => $r[0]['uid'],'url' => $r[0]['url']); - $_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 '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n" - . '<dfrn_poll>' . "\r\n" - . "\t" . '<status>' . $status . '</status>' . "\r\n" - . "\t" . '<dfrn_version>' . DFRN_PROTOCOL_VERSION . '</dfrn_version>' . "\r\n" - . "\t" . '<dfrn_id>' . $encrypted_id . '</dfrn_id>' . "\r\n" - . "\t" . '<challenge>' . $challenge . '</challenge>' . "\r\n" - . '</dfrn_poll>' . "\r\n" ; - killme(); - // NOTREACHED - } - } -} - - |