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friendica-github/mod/item.php

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16 KiB
PHP
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<?php
// This is the POST destination for most all locally posted
// text stuff. This function handles status, wall-to-wall status,
// local comments, and remote coments - that are posted on this site
// (as opposed to being delivered in a feed).
// All of these become an "item" which is our basic unit of
// information.
function item_post(&$a) {
if((! local_user()) && (! remote_user()))
return;
require_once('include/security.php');
$uid = local_user();
$parent = ((x($_POST,'parent')) ? intval($_POST['parent']) : 0);
$parent_item = null;
if($parent) {
$r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
intval($parent)
);
if(! count($r)) {
notice( t('Unable to locate original post.') . EOL);
goaway($a->get_baseurl() . "/" . $_POST['return'] );
}
$parent_item = $r[0];
}
$profile_uid = ((x($_POST,'profile_uid')) ? intval($_POST['profile_uid']) : 0);
if(! can_write_wall($a,$profile_uid)) {
notice( t('Permission denied.') . EOL) ;
return;
}
$user = null;
$r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
intval($profile_uid)
);
if(count($r))
$user = $r[0];
$str_group_allow = perms2str($_POST['group_allow']);
$str_contact_allow = perms2str($_POST['contact_allow']);
$str_group_deny = perms2str($_POST['group_deny']);
$str_contact_deny = perms2str($_POST['contact_deny']);
$private = ((strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny)) ? 1 : 0);
if(($parent_item) &&
(($parent_item['private'])
|| strlen($parent_item['allow_cid'])
|| strlen($parent_item['allow_gid'])
|| strlen($parent_item['deny_cid'])
|| strlen($parent_item['deny_gid'])
)
) {
$private = 1;
}
$title = notags(trim($_POST['title']));
$body = escape_tags(trim($_POST['body']));
$location = notags(trim($_POST['location']));
$coord = notags(trim($_POST['coord']));
$verb = notags(trim($_POST['verb']));
if(! strlen($body)) {
notice( t('Empty post discarded.') . EOL );
goaway($a->get_baseurl() . "/" . $_POST['return'] );
}
// get contact info for poster
$author = null;
$self = false;
if(($_SESSION['uid']) && ($_SESSION['uid'] == $profile_uid)) {
$self = true;
$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
intval($_SESSION['uid'])
);
}
else {
if((x($_SESSION,'visitor_id')) && (intval($_SESSION['visitor_id']))) {
$r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
intval($_SESSION['visitor_id'])
);
}
}
if(count($r)) {
$author = $r[0];
$contact_id = $author['id'];
}
// get contact info for owner
if($profile_uid == $_SESSION['uid']) {
$contact_record = $author;
}
else {
$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
intval($profile_uid)
);
if(count($r))
$contact_record = $r[0];
}
$post_type = notags(trim($_POST['type']));
if($post_type === 'net-comment') {
if($parent_item !== null) {
if($parent_item['type'] === 'remote') {
$post_type = 'remote-comment';
}
else {
$post_type = 'wall-comment';
}
}
}
/**
*
* 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;
if(preg_match_all("/\[img\](.+?)\[\/img\]/",$body,$match)) {
$images = $match[1];
if(count($images)) {
foreach($images as $image) {
if(! stristr($image,$a->get_baseurl() . '/photo/'))
continue;
$image_uri = substr($image,strrpos($image,'/') + 1);
$image_uri = substr($image_uri,0, strpos($image_uri,'-'));
$r = q("UPDATE `photo` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'
WHERE `resource-id` = '%s' AND `album` = '%s' ",
dbesc($str_contact_allow),
dbesc($str_group_allow),
dbesc($str_contact_deny),
dbesc($str_group_deny),
dbesc($image_uri),
dbesc( t('Wall Photos'))
);
}
}
}
/**
* Look for any tags and linkify them
*/
$str_tags = '';
$inform = '';
$tags = get_tags($body);
if(count($tags)) {
foreach($tags as $tag) {
if(strpos($tag,'#') === 0) {
$basetag = str_replace('_',' ',substr($tag,1));
$body = str_replace($tag,'#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]',$body);
if(strlen($str_tags))
$str_tags .= ',';
$str_tags .= '#[url=' . $a->get_baseurl() . '/search?search=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
continue;
}
if(strpos($tag,'@') === 0) {
$name = substr($tag,1);
if((strpos($name,'@')) || (strpos($name,'http://'))) {
$newname = $name;
$links = @lrdd($name);
if(count($links)) {
foreach($links as $link) {
if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
$profile = $link['@attributes']['href'];
if($link['@attributes']['rel'] === 'salmon') {
if(strlen($inform))
$inform .= ',';
$inform .= 'url:' . str_replace(',','%2c',$link['@attributes']['href']);
}
}
}
}
else {
$newname = $name;
if(strstr($name,'_')) {
$newname = str_replace('_',' ',$name);
$r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `uid` = %d LIMIT 1",
dbesc($newname),
intval($profile_uid)
);
}
else {
$r = q("SELECT * FROM `contact` WHERE `nick` = '%s' AND `uid` = %d LIMIT 1",
dbesc($name),
intval($profile_uid)
);
}
if(count($r)) {
$profile = $r[0]['url'];
$newname = $r[0]['name'];
if(strlen($inform))
$inform .= ',';
$inform .= 'cid:' . $r[0]['id'];
}
}
if($profile) {
$body = str_replace($name,'[url=' . $profile . ']' . $newname . '[/url]', $body);
$profile = str_replace(',','%2c',$profile);
if(strlen($str_tags))
$str_tags .= ',';
$str_tags .= '@[url=' . $profile . ']' . $newname . '[/url]';
}
}
}
}
$wall = 0;
if($post_type === 'wall' || $post_type === 'wall-comment')
$wall = 1;
if(! strlen($verb))
$verb = ACTIVITY_POST ;
$gravity = (($parent) ? 6 : 0 );
$notify_type = (($parent) ? 'comment-new' : 'wall-new' );
$uri = item_new_uri($a->get_hostname(),$profile_uid);
$datarray = array();
$datarray['uid'] = $profile_uid;
$datarray['type'] = $post_type;
$datarray['wall'] = $wall;
$datarray['gravity'] = $gravity;
$datarray['contact-id'] = $contact_id;
$datarray['owner-name'] = $contact_record['name'];
$datarray['owner-link'] = $contact_record['url'];
$datarray['owner-avatar'] = $contact_record['thumb'];
$datarray['author-name'] = $author['name'];
$datarray['author-link'] = $author['url'];
$datarray['author-avatar'] = $author['thumb'];
$datarray['created'] = datetime_convert();
$datarray['edited'] = datetime_convert();
$datarray['changed'] = datetime_convert();
$datarray['uri'] = $uri;
$datarray['title'] = $title;
$datarray['body'] = $body;
$datarray['location'] = $location;
$datarray['coord'] = $coord;
$datarray['tag'] = $str_tags;
$datarray['inform'] = $inform;
$datarray['verb'] = $verb;
$datarray['allow_cid'] = $str_contact_allow;
$datarray['allow_gid'] = $str_group_allow;
$datarray['deny_cid'] = $str_contact_deny;
$datarray['deny_gid'] = $str_group_deny;
$datarray['private'] = $private;
/**
* These fields are for the convenience of plugins...
* 'self' if true indicates the owner is posting on their own wall
* If parent is 0 it is a top-level post.
*/
$datarray['parent'] = $parent;
$datarray['self'] = $self;
call_hooks('post_local',$datarray);
$r = q("INSERT INTO `item` (`uid`,`type`,`wall`,`gravity`,`contact-id`,`owner-name`,`owner-link`,`owner-avatar`,
`author-name`, `author-link`, `author-avatar`, `created`, `edited`, `changed`, `uri`, `title`, `body`, `location`, `coord`,
`tag`, `inform`, `verb`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`, `private` )
VALUES( %d, '%s', %d, %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d )",
intval($datarray['uid']),
dbesc($datarray['type']),
intval($datarray['wall']),
intval($datarray['gravity']),
intval($datarray['contact-id']),
dbesc($datarray['owner-name']),
dbesc($datarray['owner-link']),
dbesc($datarray['owner-avatar']),
dbesc($datarray['author-name']),
dbesc($datarray['author-link']),
dbesc($datarray['author-avatar']),
dbesc($datarray['created']),
dbesc($datarray['edited']),
dbesc($datarray['changed']),
dbesc($datarray['uri']),
dbesc($datarray['title']),
dbesc($datarray['body']),
dbesc($datarray['location']),
dbesc($datarray['coord']),
dbesc($datarray['tag']),
dbesc($datarray['inform']),
dbesc($datarray['verb']),
dbesc($datarray['allow_cid']),
dbesc($datarray['allow_gid']),
dbesc($datarray['deny_cid']),
dbesc($datarray['deny_gid']),
intval($datarray['private'])
);
$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
dbesc($datarray['uri']));
if(count($r)) {
$post_id = $r[0]['id'];
logger('mod_item: saved item ' . $post_id);
if($parent) {
// This item is the last leaf and gets the comment box, clear any ancestors
$r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent` = %d ",
dbesc(datetime_convert()),
intval($parent)
);
// Inherit ACL's from the parent item.
$r = q("UPDATE `item` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d
WHERE `id` = %d LIMIT 1",
dbesc($parent_item['allow_cid']),
dbesc($parent_item['allow_gid']),
dbesc($parent_item['deny_cid']),
dbesc($parent_item['deny_gid']),
intval($parent_item['private']),
intval($post_id)
);
// Send a notification email to the conversation owner, unless the owner is me and I wrote this item
if(($user['notify-flags'] & NOTIFY_COMMENT) && ($contact_record != $author)) {
require_once('bbcode.php');
$from = $author['name'];
$tpl = load_view_file('view/cmnt_received_eml.tpl');
$email_tpl = replace_macros($tpl, array(
'$sitename' => $a->config['sitename'],
'$siteurl' => $a->get_baseurl(),
'$username' => $user['username'],
'$email' => $user['email'],
'$from' => $from,
'$display' => $a->get_baseurl() . '/display/' . $user['nickname'] . '/' . $post_id,
'$body' => strip_tags(bbcode($datarray['body']))
));
$res = mail($user['email'], $from . t(" commented on your item at ") . $a->config['sitename'],
$email_tpl,t("From: Administrator@") . $a->get_hostname() );
}
}
else {
$parent = $post_id;
// let me know if somebody did a wall-to-wall post on my profile
if(($user['notify-flags'] & NOTIFY_WALL) && ($contact_record != $author)) {
require_once('bbcode.php');
$from = $author['name'];
$tpl = load_view_file('view/wall_received_eml.tpl');
$email_tpl = replace_macros($tpl, array(
'$sitename' => $a->config['sitename'],
'$siteurl' => $a->get_baseurl(),
'$username' => $user['username'],
'$email' => $user['email'],
'$from' => $from,
'$display' => $a->get_baseurl() . '/display/' . $user['nickname'] . '/' . $post_id,
'$body' => strip_tags(bbcode($datarray['body']))
));
$res = mail($user['email'], $from . t(" posted on your profile wall at ") . $a->config['sitename'],
$email_tpl,t("From: Administrator@") . $a->get_hostname() );
}
}
$r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s', `changed` = '%s', `last-child` = 1, `visible` = 1
WHERE `id` = %d LIMIT 1",
intval($parent),
dbesc(($parent == $post_id) ? $uri : $parent_item['uri']),
dbesc(datetime_convert()),
intval($post_id)
);
// photo comments turn the corresponding item visible to the profile wall
// This way we don't see every picture in your new photo album posted to your wall at once.
// They will show up as people comment on them.
if(! $parent_item['visible']) {
$r = q("UPDATE `item` SET `visible` = 1 WHERE `id` = %d LIMIT 1",
intval($parent_item['id'])
);
}
}
$php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
logger('mod_item: notifier invoked: ' . "\"$php_path\" \"include/notifier.php\" \"$notify_type\" \"$post_id\" &");
proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"$notify_type\" \"$post_id\" &",
array(),$foo));
$datarray['id'] = $post_id;
call_hooks('post_local_end', $datarray);
goaway($a->get_baseurl() . "/" . $_POST['return'] );
return; // NOTREACHED
}
function item_content(&$a) {
if((! local_user()) && (! remote_user()))
return;
require_once('include/security.php');
$uid = $_SESSION['uid'];
if(($a->argc == 3) && ($a->argv[1] === 'drop') && intval($a->argv[2])) {
// locate item to be deleted
$r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
intval($a->argv[2])
);
if(! count($r)) {
notice( t('Item not found.') . EOL);
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
}
$item = $r[0];
// check if logged in user is either the author or owner of this item
if(($_SESSION['visitor_id'] == $item['contact-id']) || ($_SESSION['uid'] == $item['uid'])) {
// delete the item
$r = q("UPDATE `item` SET `deleted` = 1, `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
dbesc(datetime_convert()),
dbesc(datetime_convert()),
intval($item['id'])
);
// If item is a link to a photo resource, nuke all the associated photos
// (visitors will not have photo resources)
// This only applies to photos uploaded from the photos page. Photos inserted into a post do not
// generate a resource-id and therefore aren't intimately linked to the item.
if(strlen($item['resource-id'])) {
$q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
dbesc($item['resource-id']),
intval($item['uid'])
);
// ignore the result
}
// If it's the parent of a comment thread, kill all the kids
if($item['uri'] == $item['parent-uri']) {
$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = ''
WHERE `parent-uri` = '%s' AND `uid` = %d ",
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc($item['parent-uri']),
intval($item['uid'])
);
// ignore the result
}
else {
// ensure that last-child is set in case the comment that had it just got wiped.
q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
dbesc(datetime_convert()),
dbesc($item['parent-uri']),
intval($item['uid'])
);
// who is the last child now?
$r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
dbesc($item['parent-uri']),
intval($item['uid'])
);
if(count($r)) {
q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
intval($r[0]['id'])
);
}
}
$drop_id = intval($item['id']);
$php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
// send the notification upstream/downstream as the case may be
proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"drop\" \"$drop_id\" &",
array(), $foo));
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
return; //NOTREACHED
}
else {
notice( t('Permission denied.') . EOL);
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
//NOTREACHED
}
}
}
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