friendica/include/photos.php

170 lines
4.3 KiB
PHP

<?php
/**
* @file include/photos.php
* @brief Functions related to photo handling.
*/
/**
* @brief Get the permissions for the photos page
*
* @param int $owner_uid Owner of the photos page
* @param bool $community_page If it's an forum account
*
* @return array
*......'can_post'
*......'visitor'
*......'contact'
* 'remote_contact'
* .....'contact_id'
* 'groups'
*/
function photos_permissions($owner_uid, $community_page = 0) {
$arr = array();
if((local_user()) && (local_user() == $owner_uid))
$arr['can_post'] = true;
else {
if($community_page && remote_user()) {
if(is_array($_SESSION['remote'])) {
foreach($_SESSION['remote'] as $v) {
if($v['uid'] == $owner_uid) {
$arr['contact_id'] = $v['cid'];
break;
}
}
}
if($arr['contact_id']) {
$r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
intval($arr['contact_id']),
intval($owner_uid)
);
if(count($r)) {
$arr['can_post'] = true;
$arr['contact'] = $r[0];
$arr['remote_contact'] = true;
$arr['visitor'] = $cid;
}
}
}
}
// perhaps they're visiting - but not a community page, so they wouldn't have write access
if(remote_user() && (! $arr['visitor'])) {
$arr['contact_id'] = 0;
if(is_array($_SESSION['remote'])) {
foreach($_SESSION['remote'] as $v) {
if($v['uid'] == $owner_uid) {
$arr['contact_id'] = $v['cid'];
break;
}
}
}
if($arr['contact_id']) {
$arr['groups'] = init_groups_visitor($arr['contact_id']);
$r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
intval($arr['contact_id']),
intval($owner_uid)
);
if(count($r)) {
$arr['contact'] = $r[0];
$arr['remote_contact'] = true;
}
}
}
if(! $arr['remote_contact']) {
if(local_user()) {
$arr['contact_id'] = $_SESSION['cid'];
$arr['contact'] = $a->contact;
}
}
return $arr;
}
/**
* @brief Construnct a widget with last uploaded photos
*
* It displays the last 9 photos
*
* @param array $profile_data
*......'profile_uid'...=> The user.id of the profile (owner of the photos)
*......'nickname'......=> Nick of the owner of the profile
*......'page-flags'....=> Account type of the profile
*
* @return string
*......formatted html
*
* @template widget_photos.tpl
*/
function widget_photos($profile_data) {
$community_page = (($profile_data['page-flags'] == PAGE_COMMUNITY) ? true : false);
$nickname = $profile_data['nickname'];
$owner_id = $profile_data['profile_uid'];
$phototypes = Photo::supportedTypes();
$photos_perms = photos_permissions($owner_id, $community_page);
$sql_extra = permissions_sql($owner_id, $photos_perms['remote_contact'], $photos_perms['groups']);
$r = q("SELECT `resource-id`, `id`, `filename`, `type`, max(`scale`) AS `scale` FROM `photo`
WHERE `uid` = %d AND `album` != '%s' AND `album` != '%s' AND `album` != '%s'
$sql_extra GROUP BY `resource-id` ORDER BY `created` DESC LIMIT 9",
intval($owner_id),
dbesc('Contact Photos'),
dbesc( t('Contact Photos')),
dbesc( t('Profile Photos'))
);
$photos = array();
if(count($r)) {
foreach($r as $rr) {
$ext = $phototypes[$rr['type']];
$photos[] = array(
'id' => $rr['id'],
'src' => z_root() . '/photos/' . $nickname . '/image/' . $rr['resource-id'],
'photo' => z_root() . '/photo/' . $rr['resource-id'] . '-' . ((($rr['scale']) == 6) ? 4 : $rr['scale']) . '.' . $ext,
'alt_text' => $rr['filename'],
);
}
$tpl = get_markup_template('widget_photos.tpl');
$o .= replace_macros($tpl, array(
'$title' => t('Photos'),
'$photos' => $photos,
'$photo_albums_page' => z_root() . '/photos/' . $nickname,
'$photo_albums_page_title' => t('Vist the Photo Albums'),
));
return $o;
}
}
function getGps($exifCoord, $hemi) {
$degrees = count($exifCoord) > 0 ? gps2Num($exifCoord[0]) : 0;
$minutes = count($exifCoord) > 1 ? gps2Num($exifCoord[1]) : 0;
$seconds = count($exifCoord) > 2 ? gps2Num($exifCoord[2]) : 0;
$flip = ($hemi == 'W' or $hemi == 'S') ? -1 : 1;
return floatval($flip * ($degrees + ($minutes / 60) + ($seconds / 3600)));
}
function gps2Num($coordPart) {
$parts = explode('/', $coordPart);
if (count($parts) <= 0)
return 0;
if (count($parts) == 1)
return $parts[0];
return floatval($parts[0]) / floatval($parts[1]);
}