<?php /** * @file include/photos.php * @brief Functions related to photo handling. */ require_once('include/permissions.php'); require_once('include/items.php'); require_once('include/photo/photo_driver.php'); /** * @brief * * @param array $channel * @param array $observer * @param array $args * @return array */ function photo_upload($channel, $observer, $args) { $ret = array('success' => false); $channel_id = $channel['channel_id']; $account_id = $channel['channel_account_id']; if(! perm_is_allowed($channel_id, $observer['xchan_hash'], 'post_photos')) { $ret['message'] = t('Permission denied.'); return $ret; } call_hooks('photo_upload_begin', $args); /* * Determine the album to use */ $album = $args['album']; $newalbum = $args['newalbum']; logger('photo_upload: album= ' . $album . ' newalbum= ' . $newalbum , LOGGER_DEBUG); if(! $album) { if($newalbum) $album = $newalbum; else $album = datetime_convert('UTC',date_default_timezone_get(),'now', 'Y-m'); } if(intval($args['visible']) || $args['visible'] === 'true') $visible = 1; else $visible = 0; $str_group_allow = perms2str(((is_array($args['group_allow'])) ? $args['group_allow'] : explode(',',$args['group_allow']))); $str_contact_allow = perms2str(((is_array($args['contact_allow'])) ? $args['contact_allow'] : explode(',',$args['contact_allow']))); $str_group_deny = perms2str(((is_array($args['group_deny'])) ? $args['group_deny'] : explode(',',$args['group_deny']))); $str_contact_deny = perms2str(((is_array($args['contact_deny'])) ? $args['contact_deny'] : explode(',',$args['contact_deny']))); if ($args['data']) { // allow an import from a binary string representing the image. // This bypasses the upload step and max size limit checking $imagedata = $args['data']; $filename = $args['filename']; $filesize = strlen($imagedata); // this is going to be deleted if it exists $src = '/tmp/deletemenow'; $type = $args['type']; } else { $f = array('src' => '', 'filename' => '', 'filesize' => 0, 'type' => ''); call_hooks('photo_upload_file',$f); if (x($f,'src') && x($f,'filesize')) { $src = $f['src']; $filename = $f['filename']; $filesize = $f['filesize']; $type = $f['type']; } else { $src = $_FILES['userfile']['tmp_name']; $filename = basename($_FILES['userfile']['name']); $filesize = intval($_FILES['userfile']['size']); $type = $_FILES['userfile']['type']; } if (! $type) $type=guess_image_type($filename); logger('photo_upload: received file: ' . $filename . ' as ' . $src . ' ('. $type . ') ' . $filesize . ' bytes', LOGGER_DEBUG); $maximagesize = get_config('system','maximagesize'); if (($maximagesize) && ($filesize > $maximagesize)) { $ret['message'] = sprintf ( t('Image exceeds website size limit of %lu bytes'), $maximagesize); @unlink($src); call_hooks('photo_upload_end',$ret); return $ret; } if (! $filesize) { $ret['message'] = t('Image file is empty.'); @unlink($src); call_hooks('photo_post_end',$ret); return $ret; } logger('photo_upload: loading the contents of ' . $src , LOGGER_DEBUG); $imagedata = @file_get_contents($src); } $r = q("select sum(size) as total from photo where aid = %d and scale = 0 ", intval($account_id) ); $limit = service_class_fetch($channel_id,'photo_upload_limit'); if (($r) && ($limit !== false) && (($r[0]['total'] + strlen($imagedata)) > $limit)) { $ret['message'] = upgrade_message(); @unlink($src); call_hooks('photo_post_end',$ret); return $ret; } $ph = photo_factory($imagedata, $type); if (! $ph->is_valid()) { $ret['message'] = t('Unable to process image'); logger('photo_upload: unable to process image'); @unlink($src); call_hooks('photo_upload_end',$ret); return $ret; } $exif = $ph->orient($src); @unlink($src); $max_length = get_config('system','max_image_length'); if (! $max_length) $max_length = MAX_IMAGE_LENGTH; if ($max_length > 0) $ph->scaleImage($max_length); $width = $ph->getWidth(); $height = $ph->getHeight(); $smallest = 0; $photo_hash = (($args['resource_id']) ? $args['resource_id'] : photo_new_resource()); $visitor = ''; if ($channel['channel_hash'] !== $observer['xchan_hash']) $visitor = $observer['xchan_hash']; $errors = false; $p = array('aid' => $account_id, 'uid' => $channel_id, 'xchan' => $visitor, 'resource_id' => $photo_hash, 'filename' => $filename, 'album' => $album, 'scale' => 0, 'photo_flags' => PHOTO_NORMAL, 'allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow, 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny ); if($args['created']) $p['created'] = $args['created']; if($args['edited']) $p['edited'] = $args['edited']; if($args['title']) $p['title'] = $args['title']; if($args['description']) $p['description'] = $args['description']; $r1 = $ph->save($p); if(! $r1) $errors = true; if(($width > 640 || $height > 640) && (! $errors)) { $ph->scaleImage(640); $p['scale'] = 1; $r2 = $ph->save($p); $smallest = 1; if(! $r2) $errors = true; } if(($width > 320 || $height > 320) && (! $errors)) { $ph->scaleImage(320); $p['scale'] = 2; $r3 = $ph->save($p); $smallest = 2; if(! $r3) $errors = true; } if($errors) { q("delete from photo where resource_id = '%s' and uid = %d", dbesc($photo_hash), intval($channel_id) ); $ret['message'] = t('Photo storage failed.'); logger('photo_upload: photo store failed.'); call_hooks('photo_upload_end',$ret); return $ret; } // This will be the width and height of the smallest representation $width_x_height = $ph->getWidth() . 'x' . $ph->getHeight(); $mid = item_message_id(); // Create item container $lat = $lon = null; if($exif && $exif['GPS']) { if(feature_enabled($channel_id,'photo_location')) { $lat = getGps($exif['GPS']['GPSLatitude'], $exif['GPS']['GPSLatitudeRef']); $lon = getGps($exif['GPS']['GPSLongitude'], $exif['GPS']['GPSLongitudeRef']); } } $item_flags = ITEM_WALL|ITEM_ORIGIN|ITEM_THREAD_TOP; $item_restrict = (($visible) ? ITEM_VISIBLE : ITEM_HIDDEN); $title = ''; $mid = item_message_id(); $arr = array(); if($lat && $lon) $arr['coord'] = $lat . ' ' . $lon; $arr['aid'] = $account_id; $arr['uid'] = $channel_id; $arr['mid'] = $mid; $arr['parent_mid'] = $mid; $arr['item_flags'] = $item_flags; $arr['item_restrict'] = $item_restrict; $arr['resource_type'] = 'photo'; $arr['resource_id'] = $photo_hash; $arr['owner_xchan'] = $channel['channel_hash']; $arr['author_xchan'] = $observer['xchan_hash']; $arr['title'] = $title; $arr['allow_cid'] = $str_contact_allow; $arr['allow_gid'] = $str_group_allow; $arr['deny_cid'] = $str_contact_deny; $arr['deny_gid'] = $str_group_deny; $arr['verb'] = ACTIVITY_POST; $arr['plink'] = z_root() . '/channel/' . $channel['channel_address'] . '/?f=&mid=' . $arr['mid']; // We should also put a width_x_height on large photos. Left as an exercise for // devs looking fo simple stuff to fix. $larger = feature_enabled($channel['channel_id'], 'large_photos'); if($larger) { $tag = '[zmg]'; if($r2) $smallest = 1; else $smallest = 0; } else { if ($width_x_height) $tag = '[zmg=' . $width_x_height. ']'; else $tag = '[zmg]'; } $arr['body'] = '[zrl=' . z_root() . '/photos/' . $channel['channel_address'] . '/image/' . $photo_hash . ']' . $tag . z_root() . "/photo/{$photo_hash}-{$smallest}.".$ph->getExt() . '[/zmg]' . '[/zrl]'; $result = item_store($arr); $item_id = $result['item_id']; if($visible) proc_run('php', "include/notifier.php", 'wall-new', $item_id); $ret['success'] = true; $ret['item'] = $arr; $ret['body'] = $arr['body']; $ret['resource_id'] = $photo_hash; $ret['photoitem_id'] = $item_id; call_hooks('photo_upload_end',$ret); return $ret; } /** * @brief Returns a list with all photo albums observer is allowed to see. * * Returns an associative array with all albums where observer has permissions. * * @param array $channel * @param array $observer * @return bool|array false if no view_photos permission or an array * * success (bool) * * albums (array) */ function photos_albums_list($channel, $observer) { $channel_id = $channel['channel_id']; $observer_xchan = (($observer) ? $observer['xchan_hash'] : ''); if(! perm_is_allowed($channel_id, $observer_xchan, 'view_photos')) return false; /** @FIXME create a permissions SQL which works on arbitrary observers and channels, regardless of login or web status */ $sql_extra = permissions_sql($channel_id); $albums = q("SELECT count( distinct resource_id ) as total, album from photo where uid = %d and ( photo_flags = %d or photo_flags = %d ) $sql_extra group by album order by max(created) desc", intval($channel_id), intval(PHOTO_NORMAL), intval(PHOTO_PROFILE) ); // add various encodings to the array so we can just loop through and pick them out in a template $ret = array('success' => false); if($albums) { $ret['success'] = true; $ret['albums'] = array(); foreach($albums as $k => $album) { $entry = array( 'text' => $album['album'], 'total' => $album['total'], 'url' => z_root() . '/photos/' . $channel['channel_address'] . '/album/' . bin2hex($album['album']), 'urlencode' => urlencode($album['album']), 'bin2hex' => bin2hex($album['album']) ); $ret['albums'][] = $entry; } } return $ret; } function photos_album_widget($channelx,$observer,$albums = null) { $o = ''; // If we weren't passed an album list, see if the photos module // dropped one for us to find in $a->data['albums']. // If all else fails, load it. if(! $albums) { if(array_key_exists('albums', get_app()->data)) $albums = get_app()->data['albums']; else $albums = photos_albums_list($channelx,$observer); } if($albums['success']) { $o = replace_macros(get_markup_template('photo_albums.tpl'),array( '$nick' => $channelx['channel_address'], '$title' => t('Photo Albums'), '$albums' => $albums['albums'], '$baseurl' => z_root(), '$upload' => ((perm_is_allowed($channelx['channel_id'],(($observer) ? $observer['xchan_hash'] : ''),'post_photos')) ? t('Upload New Photos') : '') )); } return $o; } /** * @brief * * @param array $channel * @param array $observer * @param string $album default empty * @return boolean|array */ function photos_list_photos($channel, $observer, $album = '') { $channel_id = $channel['channel_id']; $observer_xchan = (($observer) ? $observer['xchan_hash'] : ''); if(! perm_is_allowed($channel_id,$observer_xchan,'view_photos')) return false; $sql_extra = permissions_sql($channel_id); if($album) $sql_extra .= " and album = '" . protect_sprintf(dbesc($album)) . "' "; $ret = array('success' => false); $r = q("select resource_id, created, edited, title, description, album, filename, type, height, width, size, scale, profile, photo_flags, allow_cid, allow_gid, deny_cid, deny_gid from photo where uid = %d and ( photo_flags = %d or photo_flags = %d ) $sql_extra ", intval($channel_id), intval(PHOTO_NORMAL), intval(PHOTO_PROFILE) ); if($r) { for($x = 0; $x < count($r); $x ++) { $r[$x]['src'] = z_root() . '/photo/' . $r[$x]['resource_id'] . '-' . $r[$x]['scale']; } $ret['success'] = true; $ret['photos'] = $r; } return $ret; } /** * @brief Check if given photo album exists in channel. * * @param int $channel_id id of the channel * @param string $album name of the album * @return boolean */ function photos_album_exists($channel_id, $album) { $r = q("SELECT id FROM photo WHERE album = '%s' AND uid = %d limit 1", dbesc($album), intval($channel_id) ); return (($r) ? true : false); } /** * @brief Renames a photo album in a channel. * * @todo Do we need to check if new album name already exists? * * @param int $channel_id id of the channel * @param string $oldname The name of the album to rename * @param string $newname The new name of the album * @return bool|array */ function photos_album_rename($channel_id, $oldname, $newname) { return q("UPDATE photo SET album = '%s' WHERE album = '%s' AND uid = %d", dbesc($newname), dbesc($oldname), intval($channel_id) ); } /** * @brief * * @param int $channel_id * @param string $album * @param string $remote_xchan * @return string|boolean */ function photos_album_get_db_idstr($channel_id, $album, $remote_xchan = '') { if ($remote_xchan) { $r = q("SELECT distinct resource_id from photo where xchan = '%s' and uid = %d and album = '%s' ", dbesc($remote_xchan), intval($channel_id), dbesc($album) ); } else { $r = q("SELECT distinct resource_id from photo where uid = %d and album = '%s' ", intval($channel_id), dbesc($album) ); } if ($r) { $arr = array(); foreach ($r as $rr) { $arr[] = "'" . dbesc($rr['resource_id']) . "'" ; } $str = implode(',',$arr); return $str; } return false; } /** * @brief Creates a new photo item. * * @param array $channel * @param string $creator_hash * @param array $photo * @param boolean $visible default false * @return int item_id */ function photos_create_item($channel, $creator_hash, $photo, $visible = false) { // Create item container $item_flags = ITEM_WALL|ITEM_ORIGIN|ITEM_THREAD_TOP; $item_restrict = (($visible) ? ITEM_VISIBLE : ITEM_HIDDEN); $mid = item_message_id(); $arr = array(); $arr['aid'] = $channel['channel_account_id']; $arr['uid'] = $channel['channel_id']; $arr['mid'] = $mid; $arr['parent_mid'] = $mid; $arr['item_flags'] = $item_flags; $arr['item_restrict'] = $item_restrict; $arr['resource_type'] = 'photo'; $arr['resource_id'] = $photo['resource_id']; $arr['owner_xchan'] = $channel['channel_hash']; $arr['author_xchan'] = $creator_hash; $arr['allow_cid'] = $photo['allow_cid']; $arr['allow_gid'] = $photo['allow_gid']; $arr['deny_cid'] = $photo['deny_cid']; $arr['deny_gid'] = $photo['deny_gid']; $arr['plink'] = z_root() . '/channel/' . $channel['channel_address'] . '/?f=&mid=' . $arr['mid']; $arr['body'] = '[zrl=' . z_root() . '/photos/' . $channel['channel_address'] . '/image/' . $photo['resource_id'] . ']' . '[zmg]' . z_root() . '/photo/' . $photo['resource_id'] . '-' . $photo['scale'] . '[/zmg]' . '[/zrl]'; $result = item_store($arr); $item_id = $result['item_id']; return $item_id; } function getGps($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]); }