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-rw-r--r--mod/dfrn_poll.php562
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
- }
- }
-}
-
-