diff options
Diffstat (limited to 'mod/dfrn_confirm.php')
| -rw-r--r-- | mod/dfrn_confirm.php | 374 |
1 files changed, 374 insertions, 0 deletions
diff --git a/mod/dfrn_confirm.php b/mod/dfrn_confirm.php new file mode 100644 index 000000000..c830f1cf2 --- /dev/null +++ b/mod/dfrn_confirm.php @@ -0,0 +1,374 @@ +<?php + + + +function dfrn_confirm_post(&$a) { + + if($a->argc > 1) + $node = $a->argv[1]; + + if(x($_POST,'source_url')) { + + // We are processing an external confirmation to an introduction created by our user. + + $public_key = $_POST['public_key']; + $dfrn_id = $_POST['dfrn_id']; + $source_url = $_POST['source_url']; + $aes_key = $_POST['aes_key']; + + if(intval($node)) + $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", + intval($node)); + else + $r = q("SELECT * FROM `user` WHERE `nickname` = '%s' LIMIT 1", + dbesc($node)); + + if(! count($r)) { + xml_status(3); // failure + } + + $my_prvkey = $r[0]['prvkey']; + $local_uid = $r[0]['uid']; + + $decrypted_source_url = ""; + + openssl_private_decrypt($source_url,$decrypted_source_url,$my_prvkey); + + + $ret = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1", + dbesc($decrypted_source_url), + intval($local_uid)); + + if(! count($ret)) { + // this is either a bogus confirmation or we deleted the original introduction. + xml_status(3); + } + + // Decrypt all this stuff we just received + + $foreign_pubkey = $ret[0]['site-pubkey']; + $dfrn_record = $ret[0]['id']; + $decrypted_dfrn_id = ""; + openssl_public_decrypt($dfrn_id,$decrypted_dfrn_id,$foreign_pubkey); + + if(strlen($aes_key)) { + $decrypted_aes_key = ""; + openssl_private_decrypt($aes_key,$decrypted_aes_key,$my_prvkey); + $dfrn_pubkey = openssl_decrypt($public_key,'AES-256-CBC',$decrypted_aes_key); + } + else { + $dfrn_pubkey = $public_key; + } + + $r = q("SELECT * FROM `contact` WHERE `dfrn-id` = '%s' LIMIT 1", + dbesc($decrypted_dfrn_id), + intval($local_uid)); + if(count($r)) + xml_status(1); // Birthday paradox - duplicate dfrn-id + + $r = q("UPDATE `contact` SET `dfrn-id` = '%s', `pubkey` = '%s' WHERE `id` = %d LIMIT 1", + dbesc($decrypted_dfrn_id), + dbesc($dfrn_pubkey), + intval($dfrn_record)); + if($r) { + + // We're good but now we have to scrape the profile photo and send notifications. + + require_once("Photo.php"); + + $photo_failure = false; + + $r = q("SELECT `photo` FROM `contact` WHERE `id` = %d LIMIT 1", + intval($dfrn_record)); + if(count($r)) { + + $filename = basename($r[0]['photo']); + $img_str = fetch_url($r[0]['photo'],true); + $img = new Photo($img_str); + if($img) { + + $img->scaleImageSquare(175); + + $hash = hash('md5',uniqid(mt_rand(),true)); + + $r = q("INSERT INTO `photo` ( `uid`, `resource-id`, `created`, `edited`, `filename`, + `height`, `width`, `data`, `scale` ) + VALUES ( %d, '%s', '%s', '%s', '%s', %d, %d, '%s', 4 )", + intval($local_uid), + dbesc($hash), + datetime_convert(), + datetime_convert(), + dbesc(basename($r[0]['photo'])), + intval($img->getHeight()), + intval($img->getWidth()), + dbesc($img->imageString()) + ); + if($r === false) + $photo_failure = true; + $img->scaleImage(80); + $r = q("INSERT INTO `photo` ( `uid`, `resource-id`, `created`, `edited`, `filename`, + `height`, `width`, `data`, `scale` ) + VALUES ( %d, '%s', '%s', '%s', '%s', %d, %d, '%s', 5 )", + intval($local_uid), + dbesc($hash), + datetime_convert(), + datetime_convert(), + dbesc(basename($r[0]['photo'])), + intval($img->getHeight()), + intval($img->getWidth()), + dbesc($img->imageString()) + ); + if($r === false) + $photo_failure = true; + + $photo = $a->get_baseurl() . '/photo/' . $hash . '-4.jpg'; + $thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.jpg'; + + } + else + $photo_failure = true; + } + else + $photo_failure = true; + + if($photo_failure) { + $photo = $a->get_baseurl() . '/images/default-profile.jpg'; + $thumb = $a->get_baseurl() . '/images/default-profile-sm.jpg'; + } + + $r = q("UPDATE `contact` SET `photo` = '%s', `thumb` = '%s', `blocked` = 0 WHERE `id` = %d LIMIT 1", + dbesc($photo), + dbesc($thumb), + intval($dfrn_record) + ); + if($r === false) + $_SESSION['sysmsg'] .= "Unable to set contact photo info." . EOL; + + // Otherwise everything seems to have worked and we are almost done. Yay! + // Send an email notification + + $r = q("SELECT * FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid` + WHERE `contact`.`id` = %d LIMIT 1", + intval($dfrn_record)); + + $tpl = file_get_contents('view/intro_complete_eml.tpl'); + + $email_tpl = replace_macros($tpl, array( + '$sitename' => $a->config['sitename'], + '$siteurl' => $a->get_baseurl(), + '$username' => $r[0]['username'], + '$email' => $r[0]['email'], + '$fn' => $r[0]['name'], + '$dfrn_url' => $r[0]['url'], + '$uid' => $newuid )); + + + $res = mail($r[0]['email'],"Introduction accepted at {$a->config['sitename']}", + $email_tpl,"From: Administrator@{$_SERVER[SERVER_NAME]}"); + if(!$res) { + $_SESSION['sysmsg'] .= "Email notification failed." . EOL; + } + xml_status(0); // Success + + return; // NOTREACHED + + } + else + xml_status(2); // Hopefully temporary problem that can be retried. + + return; // NOTREACHED + + ////////////////////// End of this scenario /////////////////////////////////////////////// + } + else { + + // We are processing a local confirmation initiated on this system by our user to an external introduction. + + $uid = $_SESSION['uid']; + + if(! $uid) { + $_SESSION['sysmsg'] = 'Unauthorised.'; + return; + } + + $dfrn_id = ((x($_POST,'dfrn_id')) ? notags(trim($_POST['dfrn_id'])) : ""); + $intro_id = intval($_POST['intro_id']); + + $r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' AND `uid` = %d LIMIT 1", + dbesc($dfrn_id), + intval($uid) + ); + + if((! $r) || (! count($r))) { + $_SESSION['sysmsg'] = 'Node does not exist.' . EOL ; + return; + } + + $contact_id = $r[0]['id']; + $site_pubkey = $r[0]['site-pubkey']; + $dfrn_confirm = $r[0]['confirm']; + $aes_allow = $r[0]['aes_allow']; + + $res=openssl_pkey_new(array( + 'digest_alg' => 'whirlpool', + 'private_key_bits' => 4096, + 'encrypt_key' => false )); + + + $private_key = ''; + + openssl_pkey_export($res, $private_key); + + + $pubkey = openssl_pkey_get_details($res); + $public_key = $pubkey["key"]; + + $r = q("UPDATE `contact` SET `pubkey` = '%s', `prvkey` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1", + dbesc($public_key), + dbesc($private_key), + intval($contact_id), + intval($uid) + ); + + + $params = array(); + + $src_aes_key = random_string(); + $result = ""; + + openssl_private_encrypt($dfrn_id,$result,$a->user['prvkey']); + + $params['dfrn_id'] = $result; + $params['public_key'] = $public_key; + + + openssl_public_encrypt($_SESSION['my_url'], $params['source_url'], $site_pubkey); + + if($aes_allow && function_exists('openssl_encrypt')) { + openssl_public_encrypt($src_aes_key, $params['aes_key'], $site_pubkey); + $params['public_key'] = openssl_encrypt($public_key,'AES-256-CBC',$src_aes_key); + } + + $res = post_url($dfrn_confirm,$params); + +// uncomment the following two lines and comment the following xml/status lines +// to debug the remote confirmation section (when both confirmations +// and responses originate on this system) + +// echo $res; +// $status = 0; + + $xml = simplexml_load_string($res); + $status = (int) $xml->status; + switch($status) { + case 0: + $_SESSION['sysmsg'] .= "Confirmation completed successfully" . EOL; + break; + case 1: + + // birthday paradox - generate new dfrn-id and fall through. + + $new_dfrn_id = random_string(); + $r = q("UPDATE contact SET `issued-id` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1", + dbesc($new_dfrn_id), + intval($contact_id), + intval($uid) + ); + + case 2: + $_SESSION['sysmsg'] .= "Temporary failure. Please wait and try again." . EOL; + break; + + + case 3: + $_SESSION['sysmsg'] .= "Introduction failed or was revoked. Cannot complete." . EOL; + break; + } + + if(($status == 0 || $status == 3) && ($intro_id)) { + + //delete the notification + + $r = q("DELETE FROM `intro` WHERE `id` = %d AND `uid` = %d LIMIT 1", + intval($intro_id), + intval($uid) + ); + + } + if($status != 0) + return; + + + require_once("Photo.php"); + + $photo_failure = false; + + $r = q("SELECT `photo` FROM `contact` WHERE `id` = %d LIMIT 1", + intval($contact_id)); + if(count($r)) { + + $filename = basename($r[0]['photo']); + $img_str = fetch_url($r[0]['photo'],true); + $img = new Photo($img_str); + if($img) { + + $img->scaleImageSquare(175); + + $hash = hash('md5',uniqid(mt_rand(),true)); + + $r = q("INSERT INTO `photo` ( `uid`, `resource-id`, `created`, `edited`, `filename`, + `height`, `width`, `data`, `scale` ) + VALUES ( %d, '%s', '%s', '%s', '%s', %d, %d, '%s', 4 )", + intval($local_uid), + dbesc($hash), + datetime_convert(), + datetime_convert(), + dbesc(basename($r[0]['photo'])), + intval($img->getHeight()), + intval($img->getWidth()), + dbesc($img->imageString()) + ); + if($r === false) + $photo_failure = true; + $img->scaleImage(80); + $r = q("INSERT INTO `photo` ( `uid`, `resource-id`, `created`, `edited`, `filename`, + `height`, `width`, `data`, `scale` ) + VALUES ( %d, '%s', '%s', '%s', '%s', %d, %d, '%s', 5 )", + intval($local_uid), + dbesc($hash), + datetime_convert(), + datetime_convert(), + dbesc(basename($r[0]['photo'])), + intval($img->getHeight()), + intval($img->getWidth()), + dbesc($img->imageString()) + ); + if($r === false) + $photo_failure = true; + + $photo = $a->get_baseurl() . '/photo/' . $hash . '-4.jpg'; + $thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.jpg'; + + } + else + $photo_failure = true; + } + else + $photo_failure = true; + + if($photo_failure) { + $photo = $a->get_baseurl() . '/images/default-profile.jpg'; + $thumb = $a->get_baseurl() . '/images/default-profile-sm.jpg'; + } + + $r = q("UPDATE `contact` SET `photo` = '%s', `thumb` = '%s', `blocked` = 0 WHERE `id` = %d LIMIT 1", + dbesc($photo), + dbesc($thumb), + intval($contact_id) + ); + if($r === false) + $_SESSION['sysmsg'] .= "Unable to set contact photo info." . EOL; + } + + return; +} |