streams/include/message.php
2018-09-17 13:15:43 +02:00

571 lines
14 KiB
PHP

<?php /** @file */
/* Private Message backend API */
require_once('include/crypto.php');
require_once('include/attach.php');
require_once('include/msglib.php');
function mail_prepare_binary($item) {
return replace_macros(get_markup_template('item_binary.tpl'), [
'$download' => t('Download binary/encrypted content'),
'$url' => z_root() . '/mail/' . $item['id'] . '/download'
]);
}
// send a private message
function send_message($uid = 0, $recipient = '', $body = '', $subject = '', $replyto = '', $expires = NULL_DATE, $mimetype = 'text/bbcode', $raw = false) {
$ret = array('success' => false);
$is_reply = false;
$observer_hash = get_observer_hash();
if($uid) {
$r = q("select * from channel where channel_id = %d limit 1",
intval($uid)
);
if($r)
$channel = $r[0];
}
else {
$channel = App::get_channel();
}
if(! $channel) {
$ret['message'] = t('Unable to determine sender.');
return $ret;
}
$body = cleanup_bbcode($body);
$results = linkify_tags($a, $body, $uid);
if(! $raw) {
if(preg_match_all("/\[attachment\](.*?)\[\/attachment\]/",((strpos($body,'[/crypt]')) ? $_POST['media_str'] : $body),$match)) {
$attaches = $match[1];
}
}
$attachments = '';
if((! $raw) && preg_match_all('/(\[attachment\](.*?)\[\/attachment\])/',$body,$match)) {
$attachments = array();
foreach($match[2] as $mtch) {
$hash = substr($mtch,0,strpos($mtch,','));
$rev = intval(substr($mtch,strpos($mtch,',')));
$r = attach_by_hash_nodata($hash,get_observer_hash(),$rev);
if($r['success']) {
$attachments[] = array(
'href' => z_root() . '/attach/' . $r['data']['hash'],
'length' => $r['data']['filesize'],
'type' => $r['data']['filetype'],
'title' => urlencode($r['data']['filename']),
'revision' => $r['data']['revision']
);
}
$body = trim(str_replace($match[1],'',$body));
}
}
$jattach = (($attachments) ? json_encode($attachments) : '');
if(! $recipient) {
$ret['message'] = t('No recipient provided.');
return $ret;
}
if(! strlen($subject))
$subject = t('[no subject]');
// look for any existing conversation structure
$conv_guid = '';
if(strlen($replyto)) {
$is_reply = true;
$r = q("select conv_guid from mail where channel_id = %d and ( mid = '%s' or parent_mid = '%s' ) limit 1",
intval(local_channel()),
dbesc($replyto),
dbesc($replyto)
);
if($r) {
$conv_guid = $r[0]['conv_guid'];
}
}
if(! $conv_guid) {
// create a new conversation
$retconv = create_conversation($channel,$recipient,$subject);
if($retconv) {
$conv_guid = $retconv['guid'];
}
}
if(! $retconv) {
$r = q("select * from conv where guid = '%s' and uid = %d limit 1",
dbesc($conv_guid),
intval(local_channel())
);
if($r) {
$retconv = $r[0];
}
}
if(! $retconv) {
$ret['message'] = 'conversation not found';
return $ret;
}
$c = q("update conv set updated = '%s' where guid = '%s' and uid = %d",
dbesc(datetime_convert()),
dbesc($conv_guid),
intval(local_channel())
);
// generate a unique message_id
do {
$dups = false;
$hash = random_string();
$mid = $hash . '@' . App::get_hostname();
$r = q("SELECT id FROM mail WHERE mid = '%s' LIMIT 1",
dbesc($mid));
if(count($r))
$dups = true;
} while($dups == true);
if(! strlen($replyto)) {
$replyto = $mid;
}
/**
*
* When a photo was uploaded into the message using the (profile wall) ajax
* uploader, The permissions are initially set to disallow anybody but the
* owner from seeing it. This is because the permissions may not yet have been
* set for the post. If it's private, the photo permissions should be set
* appropriately. But we didn't know the final permissions on the post until
* now. So now we'll look for links of uploaded messages that are in the
* post and set them to the same permissions as the post itself.
*
*/
$match = null;
$images = null;
if(preg_match_all("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/",((strpos($body,'[/crypt]')) ? $_POST['media_str'] : $body),$match))
$images = $match[3];
$match = false;
if($subject)
$subject = str_rot47(base64url_encode($subject));
if(($body )&& (! $raw))
$body = str_rot47(base64url_encode($body));
$sig = ''; // placeholder
$mimetype = ''; //placeholder
$r = q("INSERT INTO mail ( account_id, conv_guid, mail_obscured, channel_id, from_xchan, to_xchan, mail_mimetype, title, body, sig, attach, mid, parent_mid, created, expires, mail_isreply, mail_raw )
VALUES ( %d, '%s', %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d )",
intval($channel['channel_account_id']),
dbesc($conv_guid),
intval(1),
intval($channel['channel_id']),
dbesc($channel['channel_hash']),
dbesc($recipient),
dbesc(($mimetype)? $mimetype : 'text/bbcode'),
dbesc($subject),
dbesc($body),
dbesc($sig),
dbesc($jattach),
dbesc($mid),
dbesc($replyto),
dbesc(datetime_convert()),
dbescdate($expires),
intval($is_reply),
intval($raw)
);
// verify the save
$r = q("SELECT * FROM mail WHERE mid = '%s' and channel_id = %d LIMIT 1",
dbesc($mid),
intval($channel['channel_id'])
);
if($r) {
$post_id = $r[0]['id'];
$retmail = $r[0];
xchan_mail_query($retmail);
}
else {
$ret['message'] = t('Stored post could not be verified.');
return $ret;
}
if($images) {
foreach($images as $image) {
if(! stristr($image,z_root() . '/photo/'))
continue;
$image_uri = substr($image,strrpos($image,'/') + 1);
$image_uri = substr($image_uri,0, strpos($image_uri,'-'));
$r = q("UPDATE photo SET allow_cid = '%s' WHERE resource_id = '%s' AND uid = %d and allow_cid = '%s'",
dbesc('<' . $recipient . '>'),
dbesc($image_uri),
intval($channel['channel_id']),
dbesc('<' . $channel['channel_hash'] . '>')
);
$r = q("UPDATE attach SET allow_cid = '%s' WHERE hash = '%s' AND is_photo = 1 and uid = %d and allow_cid = '%s'",
dbesc('<' . $recipient . '>'),
dbesc($image_uri),
intval($channel['channel_id']),
dbesc('<' . $channel['channel_hash'] . '>')
);
}
}
if($attaches) {
foreach($attaches as $attach) {
$hash = substr($attach,0,strpos($attach,','));
$rev = intval(substr($attach,strpos($attach,',')));
attach_store($channel,$observer_hash,$options = 'update', array(
'hash' => $hash,
'revision' => $rev,
'allow_cid' => '<' . $recipient . '>',
));
}
}
Zotlabs\Daemon\Master::Summon(array('Notifier','mail',$post_id));
$ret['success'] = true;
$ret['message_item'] = intval($post_id);
$ret['conv'] = $retconv;
$ret['mail'] = $retmail;
return $ret;
}
function create_conversation($channel,$recipient,$subject) {
// create a new conversation
$conv_guid = random_string();
$recip = q("select * from xchan where xchan_hash = '%s' limit 1",
dbesc($recipient)
);
if($recip)
$recip_handle = $recip[0]['xchan_addr'];
$sender_handle = channel_reddress($channel);
$handles = $recip_handle . ';' . $sender_handle;
if($subject)
$nsubject = str_rot47(base64url_encode($subject));
$r = q("insert into conv (uid,guid,creator,created,updated,subject,recips) values(%d, '%s', '%s', '%s', '%s', '%s', '%s') ",
intval($channel['channel_id']),
dbesc($conv_guid),
dbesc($sender_handle),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc($nsubject),
dbesc($handles)
);
$r = q("select * from conv where guid = '%s' and uid = %d limit 1",
dbesc($conv_guid),
intval($channel['channel_id'])
);
return $r[0];
}
function private_messages_list($uid, $mailbox = '', $start = 0, $numitems = 0) {
$where = '';
$limit = '';
$t0 = dba_timer();
if($numitems)
$limit = " LIMIT " . intval($numitems) . " OFFSET " . intval($start);
if($mailbox !== '') {
$x = q("select channel_hash from channel where channel_id = %d limit 1",
intval($uid)
);
if(! $x)
return array();
$channel_hash = dbesc($x[0]['channel_hash']);
$local_channel = intval(local_channel());
switch($mailbox) {
case 'inbox':
$sql = "SELECT * FROM mail WHERE channel_id = $local_channel AND from_xchan != '$channel_hash' ORDER BY created DESC $limit";
break;
case 'outbox':
$sql = "SELECT * FROM mail WHERE channel_id = $local_channel AND from_xchan = '$channel_hash' ORDER BY created DESC $limit";
break;
case 'combined':
default:
$parents = q("SELECT mail.parent_mid FROM mail LEFT JOIN conv ON mail.conv_guid = conv.guid WHERE mail.mid = mail.parent_mid AND mail.channel_id = %d ORDER BY conv.updated DESC $limit",
dbesc($local_channel)
);
break;
}
}
$r = null;
if($parents) {
foreach($parents as $parent) {
$all = q("SELECT * FROM mail WHERE parent_mid = '%s' AND channel_id = %d ORDER BY created DESC limit 1",
dbesc($parent['parent_mid']),
dbesc($local_channel)
);
if($all) {
foreach($all as $single) {
$r[] = $single;
}
}
}
}
else {
$r = q($sql);
}
if(! $r) {
return array();
}
$chans = array();
foreach($r as $rr) {
$s = "'" . dbesc(trim($rr['from_xchan'])) . "'";
if(! in_array($s,$chans))
$chans[] = $s;
$s = "'" . dbesc(trim($rr['to_xchan'])) . "'";
if(! in_array($s,$chans))
$chans[] = $s;
}
$c = q("select * from xchan where xchan_hash in (" . protect_sprintf(implode(',',$chans)) . ")");
foreach($r as $k => $rr) {
$r[$k]['from'] = find_xchan_in_array($rr['from_xchan'],$c);
$r[$k]['to'] = find_xchan_in_array($rr['to_xchan'],$c);
$r[$k]['seen'] = intval($rr['mail_seen']);
if(intval($r[$k]['mail_obscured'])) {
if($r[$k]['title'])
$r[$k]['title'] = base64url_decode(str_rot47($r[$k]['title']));
if($r[$k]['body'])
$r[$k]['body'] = base64url_decode(str_rot47($r[$k]['body']));
}
}
return $r;
}
function private_messages_fetch_message($channel_id, $messageitem_id, $updateseen = false) {
$messages = q("select * from mail where id = %d and channel_id = %d order by created asc",
dbesc($messageitem_id),
intval($channel_id)
);
if(! $messages)
return array();
$chans = array();
foreach($messages as $rr) {
$s = "'" . dbesc(trim($rr['from_xchan'])) . "'";
if(! in_array($s,$chans))
$chans[] = $s;
$s = "'" . dbesc(trim($rr['to_xchan'])) . "'";
if(! in_array($s,$chans))
$chans[] = $s;
}
$c = q("select * from xchan where xchan_hash in (" . protect_sprintf(implode(',',$chans)) . ")");
foreach($messages as $k => $message) {
$messages[$k]['from'] = find_xchan_in_array($message['from_xchan'],$c);
$messages[$k]['to'] = find_xchan_in_array($message['to_xchan'],$c);
if(intval($messages[$k]['mail_obscured'])) {
if($messages[$k]['title'])
$messages[$k]['title'] = base64url_decode(str_rot47($messages[$k]['title']));
if($messages[$k]['body'])
$messages[$k]['body'] = base64url_decode(str_rot47($messages[$k]['body']));
}
}
if($updateseen) {
$r = q("UPDATE mail SET mail_seen = 1 where mail_seen = 0 and id = %d AND channel_id = %d",
dbesc($messageitem_id),
intval($channel_id)
);
}
return $messages;
}
function private_messages_drop($channel_id, $messageitem_id, $drop_conversation = false) {
$x = q("select * from mail where id = %d and channel_id = %d limit 1",
intval($messageitem_id),
intval($channel_id)
);
if(! $x)
return false;
$conversation = null;
if($x[0]['conv_guid']) {
$y = q("select * from conv where guid = '%s' and uid = %d limit 1",
dbesc($x[0]['conv_guid']),
intval($channel_id)
);
if($y) {
$conversation = $y[0];
$conversation['subject'] = base64url_decode(str_rot47($conversation['subject']));
}
}
if($drop_conversation) {
$m = array();
$m['conv'] = array($conversation);
$m['conv'][0]['deleted'] = 1;
$z = q("select * from mail where parent_mid = '%s' and channel_id = %d",
dbesc($x[0]['parent_mid']),
intval($channel_id)
);
if($z) {
if($x[0]['conv_guid']) {
q("delete from conv where guid = '%s' and uid = %d",
dbesc($x[0]['conv_guid']),
intval($channel_id)
);
}
$m['mail'] = array();
foreach($z as $zz) {
xchan_mail_query($zz);
$zz['mail_deleted'] = 1;
$m['mail'][] = encode_mail($zz,true);
}
q("DELETE FROM mail WHERE parent_mid = '%s' AND channel_id = %d ",
dbesc($x[0]['parent_mid']),
intval($channel_id)
);
}
build_sync_packet($channel_id,$m);
return true;
}
else {
xchan_mail_query($x[0]);
$x[0]['mail_deleted'] = true;
msg_drop($messageitem_id, $channel_id, $x[0]['conv_guid']);
build_sync_packet($channel_id,array('mail' => array(encode_mail($x,true))));
return true;
}
return false;
}
function private_messages_fetch_conversation($channel_id, $messageitem_id, $updateseen = false) {
// find the parent_mid of the message being requested
$r = q("SELECT parent_mid from mail WHERE channel_id = %d and id = %d limit 1",
intval($channel_id),
intval($messageitem_id)
);
if(! $r)
return array();
$messages = q("select * from mail where parent_mid = '%s' and channel_id = %d order by created asc",
dbesc($r[0]['parent_mid']),
intval($channel_id)
);
if(! $messages)
return array();
$chans = array();
foreach($messages as $rr) {
$s = "'" . dbesc(trim($rr['from_xchan'])) . "'";
if(! in_array($s,$chans))
$chans[] = $s;
$s = "'" . dbesc(trim($rr['to_xchan'])) . "'";
if(! in_array($s,$chans))
$chans[] = $s;
}
$c = q("select * from xchan where xchan_hash in (" . protect_sprintf(implode(',',$chans)) . ")");
foreach($messages as $k => $message) {
$messages[$k]['from'] = find_xchan_in_array($message['from_xchan'],$c);
$messages[$k]['to'] = find_xchan_in_array($message['to_xchan'],$c);
if(intval($messages[$k]['mail_obscured'])) {
if($messages[$k]['title'])
$messages[$k]['title'] = base64url_decode(str_rot47($messages[$k]['title']));
if($messages[$k]['body'])
$messages[$k]['body'] = base64url_decode(str_rot47($messages[$k]['body']));
}
if($messages[$k]['mail_raw'])
$messages[$k]['body'] = mail_prepare_binary([ 'id' => $messages[$k]['id'] ]);
}
if($updateseen) {
$r = q("UPDATE mail SET mail_seen = 1 where mail_seen = 0 and parent_mid = '%s' AND channel_id = %d",
dbesc($r[0]['parent_mid']),
intval($channel_id)
);
}
return $messages;
}