<?php
/**
 * @file mod/photos.php
 */
use Friendica\App;
use Friendica\Content\Feature;
use Friendica\Core\System;
use Friendica\Core\Config;
use Friendica\Core\Worker;
use Friendica\Database\DBM;
use Friendica\Model\Contact;
use Friendica\Model\Photo;
use Friendica\Network\Probe;
use Friendica\Object\Image;

require_once 'include/photos.php';
require_once 'include/items.php';
require_once 'include/acl_selectors.php';
require_once 'include/bbcode.php';
require_once 'include/security.php';
require_once 'include/redir.php';
require_once 'include/tags.php';
require_once 'include/threads.php';

function photos_init(App $a) {

	if ($a->argc > 1) {
		auto_redir($a, $a->argv[1]);
	}

	if (Config::get('system', 'block_public') && !local_user() && !remote_user()) {
		return;
	}

	nav_set_selected('home');

	if ($a->argc > 1) {
		$nick = $a->argv[1];
		$user = q("SELECT * FROM `user` WHERE `nickname` = '%s' AND `blocked` = 0 LIMIT 1",
			dbesc($nick)
		);

		if (!DBM::is_result($user)) {
			return;
		}

		$a->data['user'] = $user[0];
		$a->profile_uid = $user[0]['uid'];
		$is_owner = (local_user() && (local_user() == $a->profile_uid));

		$profile = get_profiledata_by_nick($nick, $a->profile_uid);

		$account_type = Contact::getAccountType($profile);

		$tpl = get_markup_template("vcard-widget.tpl");

		$vcard_widget .= replace_macros($tpl, array(
			'$name' => $profile['name'],
			'$photo' => $profile['photo'],
			'$addr' => (($profile['addr'] != "") ? $profile['addr'] : ""),
			'$account_type' => $account_type,
			'$pdesc' => (($profile['pdesc'] != "") ? $profile['pdesc'] : ""),
		));

		$albums = photo_albums($a->data['user']['uid']);

		$albums_visible = ((intval($a->data['user']['hidewall']) && !local_user() && !remote_user()) ? false : true);

		// 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) {
			$a->data['albums'] = $albums;
			if ($albums_visible) {
				$ret['success'] = true;
			}

			$ret['albums'] = array();
			foreach ($albums as $k => $album) {
				//hide profile photos to others
				if (!$is_owner && !remote_user() && ($album['album'] == t('Profile Photos')))
					continue;
				$entry = array(
					'text'      => $album['album'],
					'total'     => $album['total'],
					'url'       => 'photos/' . $a->data['user']['nickname'] . '/album/' . bin2hex($album['album']),
					'urlencode' => urlencode($album['album']),
					'bin2hex'   => bin2hex($album['album'])
				);
				$ret['albums'][] = $entry;
			}
		}

		$albums = $ret;

		if (local_user() && $a->data['user']['uid'] == local_user()) {
			$can_post = true;
		}

		if ($albums['success']) {
			$photo_albums_widget = replace_macros(get_markup_template('photo_albums.tpl'), array(
				'$nick'     => $a->data['user']['nickname'],
				'$title'    => t('Photo Albums'),
				'$recent'   => t('Recent Photos'),
				'$albums'   => $albums['albums'],
				'$baseurl'  => System::baseUrl(),
				'$upload'   => array(t('Upload New Photos'), 'photos/' . $a->data['user']['nickname'] . '/upload'),
				'$can_post' => $can_post
			));
		}


		if (!x($a->page, 'aside')) {
			$a->page['aside'] = '';
		}
		$a->page['aside'] .= $vcard_widget;
		$a->page['aside'] .= $photo_albums_widget;


		$tpl = get_markup_template("photos_head.tpl");
		$a->page['htmlhead'] .= replace_macros($tpl,array(
			'$ispublic' => t('everybody')
		));

	}

	return;
}


function photos_post(App $a) {

	logger('mod-photos: photos_post: begin' , LOGGER_DEBUG);


	logger('mod_photos: REQUEST ' . print_r($_REQUEST,true), LOGGER_DATA);
	logger('mod_photos: FILES '   . print_r($_FILES,true), LOGGER_DATA);

	$phototypes = Image::supportedTypes();

	$can_post  = false;
	$visitor   = 0;

	$page_owner_uid = $a->data['user']['uid'];
	$community_page = (($a->data['user']['page-flags'] == PAGE_COMMUNITY) ? true : false);

	if (local_user() && (local_user() == $page_owner_uid)) {
		$can_post = true;
	} else {
		if ($community_page && remote_user()) {
			$contact_id = 0;
			if (is_array($_SESSION['remote'])) {
				foreach ($_SESSION['remote'] as $v) {
					if ($v['uid'] == $page_owner_uid) {
						$contact_id = $v['cid'];
						break;
					}
				}
			}
			if ($contact_id) {

				$r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
					intval($contact_id),
					intval($page_owner_uid)
				);
				if (DBM::is_result($r)) {
					$can_post = true;
					$visitor = $contact_id;
				}
			}
		}
	}

	if (!$can_post) {
		notice( t('Permission denied.') . EOL );
		killme();
	}

	$r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
		WHERE `user`.`uid` = %d AND `self` = 1 LIMIT 1",
		intval($page_owner_uid)
	);

	if (!DBM::is_result($r)) {
		notice( t('Contact information unavailable') . EOL);
		logger('photos_post: unable to locate contact record for page owner. uid=' . $page_owner_uid);
		killme();
	}

	$owner_record = $r[0];


	if (($a->argc > 3) && ($a->argv[2] === 'album')) {
		$album = hex2bin($a->argv[3]);

		if ($album === t('Profile Photos') || $album === 'Contact Photos' || $album === t('Contact Photos')) {
			goaway($_SESSION['photo_return']);
			return; // NOTREACHED
		}

		$r = q("SELECT `album` FROM `photo` WHERE `album` = '%s' AND `uid` = %d",
			dbesc($album),
			intval($page_owner_uid)
		);
		if (!DBM::is_result($r)) {
			notice( t('Album not found.') . EOL);
			goaway($_SESSION['photo_return']);
			return; // NOTREACHED
		}

		// Check if the user has responded to a delete confirmation query
		if ($_REQUEST['canceled']) {
			goaway($_SESSION['photo_return']);
		}

		/*
		 * RENAME photo album
		 */

		$newalbum = notags(trim($_POST['albumname']));
		if ($newalbum != $album) {
			q("UPDATE `photo` SET `album` = '%s' WHERE `album` = '%s' AND `uid` = %d",
				dbesc($newalbum),
				dbesc($album),
				intval($page_owner_uid)
			);
			// Update the photo albums cache
			photo_albums($page_owner_uid, true);

			$newurl = str_replace(bin2hex($album),bin2hex($newalbum),$_SESSION['photo_return']);
			goaway($newurl);
			return; // NOTREACHED
		}

		/*
		 * DELETE photo album and all its photos
		 */

		if ($_POST['dropalbum'] == t('Delete Album')) {

			// Check if we should do HTML-based delete confirmation
			if ($_REQUEST['confirm']) {
				$drop_url = $a->query_string;
				$extra_inputs = array(
					array('name' => 'albumname', 'value' => $_POST['albumname']),
				);
				$a->page['content'] = replace_macros(get_markup_template('confirm.tpl'), array(
					'$method' => 'post',
					'$message' => t('Do you really want to delete this photo album and all its photos?'),
					'$extra_inputs' => $extra_inputs,
					'$confirm' => t('Delete Album'),
					'$confirm_url' => $drop_url,
					'$confirm_name' => 'dropalbum', // Needed so that confirmation will bring us back into this if statement
					'$cancel' => t('Cancel'),
				));
				$a->error = 1; // Set $a->error so the other module functions don't execute
				return;
			}

			$res = array();

			// get the list of photos we are about to delete

			if ($visitor) {
				$r = q("SELECT distinct(`resource-id`) as `rid` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d AND `album` = '%s'",
					intval($visitor),
					intval($page_owner_uid),
					dbesc($album)
				);
			} else {
				$r = q("SELECT distinct(`resource-id`) as `rid` FROM `photo` WHERE `uid` = %d AND `album` = '%s'",
					intval(local_user()),
					dbesc($album)
				);
			}
			if (DBM::is_result($r)) {
				foreach ($r as $rr) {
					$res[] = "'" . dbesc($rr['rid']) . "'" ;
				}
			} else {
				goaway($_SESSION['photo_return']);
				return; // NOTREACHED
			}

			$str_res = implode(',', $res);

			// remove the associated photos

			q("DELETE FROM `photo` WHERE `resource-id` IN ( $str_res ) AND `uid` = %d",
				intval($page_owner_uid)
			);

			// find and delete the corresponding item with all the comments and likes/dislikes

			$r = q("SELECT `parent-uri` FROM `item` WHERE `resource-id` IN ( $str_res ) AND `uid` = %d",
				intval($page_owner_uid)
			);
			if (DBM::is_result($r)) {
				foreach ($r as $rr) {
					q("UPDATE `item` SET `deleted` = 1, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
						dbesc(datetime_convert()),
						dbesc($rr['parent-uri']),
						intval($page_owner_uid)
					);
					create_tags_from_itemuri($rr['parent-uri'], $page_owner_uid);
					delete_thread_uri($rr['parent-uri'], $page_owner_uid);

					$drop_id = intval($rr['id']);

					// send the notification upstream/downstream as the case may be

					if ($rr['visible']) {
						Worker::add(PRIORITY_HIGH, "Notifier", "drop", $drop_id);
					}
				}
			}

			// Update the photo albums cache
			photo_albums($page_owner_uid, true);
		}

		goaway('photos/' . $a->data['user']['nickname']);
		return; // NOTREACHED
	}


	// Check if the user has responded to a delete confirmation query for a single photo
	if (($a->argc > 2) && $_REQUEST['canceled']) {
		goaway($_SESSION['photo_return']);
	}

	if (($a->argc > 2) && (x($_POST,'delete')) && ($_POST['delete'] == t('Delete Photo'))) {

		// same as above but remove single photo

		// Check if we should do HTML-based delete confirmation
		if ($_REQUEST['confirm']) {
			$drop_url = $a->query_string;
			$a->page['content'] = replace_macros(get_markup_template('confirm.tpl'), array(
				'$method' => 'post',
				'$message' => t('Do you really want to delete this photo?'),
				'$extra_inputs' => array(),
				'$confirm' => t('Delete Photo'),
				'$confirm_url' => $drop_url,
				'$confirm_name' => 'delete', // Needed so that confirmation will bring us back into this if statement
				'$cancel' => t('Cancel'),
			));
			$a->error = 1; // Set $a->error so the other module functions don't execute
			return;
		}

		if ($visitor) {
			$r = q("SELECT `id`, `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d AND `resource-id` = '%s' LIMIT 1",
				intval($visitor),
				intval($page_owner_uid),
				dbesc($a->argv[2])
			);
		} else {
			$r = q("SELECT `id`, `resource-id` FROM `photo` WHERE `uid` = %d AND `resource-id` = '%s' LIMIT 1",
				intval(local_user()),
				dbesc($a->argv[2])
			);
		}
		if (DBM::is_result($r)) {
			q("DELETE FROM `photo` WHERE `uid` = %d AND `resource-id` = '%s'",
				intval($page_owner_uid),
				dbesc($r[0]['resource-id'])
			);
			$i = q("SELECT * FROM `item` WHERE `resource-id` = '%s' AND `uid` = %d LIMIT 1",
				dbesc($r[0]['resource-id']),
				intval($page_owner_uid)
			);
			if (DBM::is_result($i)) {
				q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
					dbesc(datetime_convert()),
					dbesc(datetime_convert()),
					dbesc($i[0]['uri']),
					intval($page_owner_uid)
				);
				create_tags_from_itemuri($i[0]['uri'], $page_owner_uid);
				delete_thread_uri($i[0]['uri'], $page_owner_uid);

				$url = System::baseUrl();
				$drop_id = intval($i[0]['id']);

				// Update the photo albums cache
				photo_albums($page_owner_uid, true);

				if ($i[0]['visible']) {
					Worker::add(PRIORITY_HIGH, "Notifier", "drop", $drop_id);
				}
			}
		}

		goaway('photos/' . $a->data['user']['nickname']);
		return; // NOTREACHED
	}

	if (($a->argc > 2) && ((x($_POST,'desc') !== false) || (x($_POST,'newtag') !== false)) || (x($_POST,'albname') !== false)) {

		$desc        = (x($_POST,'desc')      ? notags(trim($_POST['desc']))    : '');
		$rawtags     = (x($_POST,'newtag')    ? notags(trim($_POST['newtag']))  : '');
		$item_id     = (x($_POST,'item_id')   ? intval($_POST['item_id'])       : 0);
		$albname     = (x($_POST,'albname')   ? notags(trim($_POST['albname'])) : '');
		$origaname   = (x($_POST,'origaname') ? notags(trim($_POST['origaname'])) : '');
		$str_group_allow   = perms2str($_POST['group_allow']);
		$str_contact_allow = perms2str($_POST['contact_allow']);
		$str_group_deny    = perms2str($_POST['group_deny']);
		$str_contact_deny  = perms2str($_POST['contact_deny']);

		$resource_id = $a->argv[2];

		if (!strlen($albname)) {
			$albname = datetime_convert('UTC',date_default_timezone_get(),'now', 'Y');
		}


		if ((x($_POST,'rotate') !== false) &&
		   ( (intval($_POST['rotate']) == 1) || (intval($_POST['rotate']) == 2) )) {
			logger('rotate');

			$r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d AND `scale` = 0 LIMIT 1",
				dbesc($resource_id),
				intval($page_owner_uid)
			);
			if (DBM::is_result($r)) {
				$Image = new Image($r[0]['data'], $r[0]['type']);
				if ($Image->isValid()) {
					$rotate_deg = ( (intval($_POST['rotate']) == 1) ? 270 : 90 );
					$Image->rotate($rotate_deg);

					$width  = $Image->getWidth();
					$height = $Image->getHeight();

					$x = q("UPDATE `photo` SET `data` = '%s', `height` = %d, `width` = %d WHERE `resource-id` = '%s' AND `uid` = %d AND `scale` = 0",
						dbesc($Image->asString()),
						intval($height),
						intval($width),
						dbesc($resource_id),
						intval($page_owner_uid)
					);

					if ($width > 640 || $height > 640) {
						$Image->scaleDown(640);
						$width  = $Image->getWidth();
						$height = $Image->getHeight();

						$x = q("UPDATE `photo` SET `data` = '%s', `height` = %d, `width` = %d WHERE `resource-id` = '%s' AND `uid` = %d AND `scale` = 1",
							dbesc($Image->asString()),
							intval($height),
							intval($width),
							dbesc($resource_id),
							intval($page_owner_uid)
						);
					}

					if ($width > 320 || $height > 320) {
						$Image->scaleDown(320);
						$width  = $Image->getWidth();
						$height = $Image->getHeight();

						$x = q("UPDATE `photo` SET `data` = '%s', `height` = %d, `width` = %d WHERE `resource-id` = '%s' AND `uid` = %d AND `scale` = 2",
							dbesc($Image->asString()),
							intval($height),
							intval($width),
							dbesc($resource_id),
							intval($page_owner_uid)
						);
					}
				}
			}
		}

		$p = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ORDER BY `scale` DESC",
			dbesc($resource_id),
			intval($page_owner_uid)
		);
		if (DBM::is_result($p)) {
			$ext = $phototypes[$p[0]['type']];
			$r = q("UPDATE `photo` SET `desc` = '%s', `album` = '%s', `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s' WHERE `resource-id` = '%s' AND `uid` = %d",
				dbesc($desc),
				dbesc($albname),
				dbesc($str_contact_allow),
				dbesc($str_group_allow),
				dbesc($str_contact_deny),
				dbesc($str_group_deny),
				dbesc($resource_id),
				intval($page_owner_uid)
			);

			// Update the photo albums cache if album name was changed
			if ($albname !== $origaname) {
				photo_albums($page_owner_uid, true);
			}
		}

		/* Don't make the item visible if the only change was the album name */

		$visibility = 0;
		if ($p[0]['desc'] !== $desc || strlen($rawtags)) {
			$visibility = 1;
		}

		if (!$item_id) {

			// Create item container

			$title = '';
			$uri = item_new_uri($a->get_hostname(),$page_owner_uid);

			$arr = array();
			$arr['guid']          = get_guid(32);
			$arr['uid']           = $page_owner_uid;
			$arr['uri']           = $uri;
			$arr['parent-uri']    = $uri;
			$arr['type']          = 'photo';
			$arr['wall']          = 1;
			$arr['resource-id']   = $p[0]['resource-id'];
			$arr['contact-id']    = $owner_record['id'];
			$arr['owner-name']    = $owner_record['name'];
			$arr['owner-link']    = $owner_record['url'];
			$arr['owner-avatar']  = $owner_record['thumb'];
			$arr['author-name']   = $owner_record['name'];
			$arr['author-link']   = $owner_record['url'];
			$arr['author-avatar'] = $owner_record['thumb'];
			$arr['title']         = $title;
			$arr['allow_cid']     = $p[0]['allow_cid'];
			$arr['allow_gid']     = $p[0]['allow_gid'];
			$arr['deny_cid']      = $p[0]['deny_cid'];
			$arr['deny_gid']      = $p[0]['deny_gid'];
			$arr['last-child']    = 1;
			$arr['visible']       = $visibility;
			$arr['origin']        = 1;

			$arr['body']          = '[url=' . System::baseUrl() . '/photos/' . $a->data['user']['nickname'] . '/image/' . $p[0]['resource-id'] . ']'
						. '[img]' . System::baseUrl() . '/photo/' . $p[0]['resource-id'] . '-' . $p[0]['scale'] . '.'. $ext . '[/img]'
						. '[/url]';

			$item_id = item_store($arr);

		}

		if ($item_id) {
			$r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
				intval($item_id),
				intval($page_owner_uid)
			);
		}
		if (DBM::is_result($r)) {
			$old_tag    = $r[0]['tag'];
			$old_inform = $r[0]['inform'];
		}

		if (strlen($rawtags)) {

			$str_tags = '';
			$inform   = '';

			// if the new tag doesn't have a namespace specifier (@foo or #foo) give it a hashtag

			$x = substr($rawtags,0,1);
			if ($x !== '@' && $x !== '#') {
				$rawtags = '#' . $rawtags;
			}

			$taginfo = array();
			$tags = get_tags($rawtags);

			if (count($tags)) {
				foreach ($tags as $tag) {
					if (isset($profile)) {
						unset($profile);
					}
					if (strpos($tag, '@') === 0) {
						$name = substr($tag,1);
						if ((strpos($name, '@')) || (strpos($name, 'http://'))) {
							$newname = $name;
							$links = @Probe::lrdd($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') {
										$salmon = '$url:' . str_replace(',', '%sc', $link['@attributes']['href']);
										if (strlen($inform)) {
											$inform .= ',';
										}
										$inform .= $salmon;
									}
								}
							}
							$taginfo[] = array($newname, $profile, $salmon);
						} else {
							$newname = $name;
							$alias = '';
							$tagcid = 0;
							if (strrpos($newname, '+')) {
								$tagcid = intval(substr($newname, strrpos($newname, '+') + 1));
							}

							if ($tagcid) {
								$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
									intval($tagcid),
									intval($profile_uid)
								);
							} else {
								$newname = str_replace('_',' ',$name);

								//select someone from this user's contacts by name
								$r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `uid` = %d LIMIT 1",
										dbesc($newname),
										intval($page_owner_uid)
								);

								if (!DBM::is_result($r)) {
									//select someone by attag or nick and the name passed in
									$r = q("SELECT * FROM `contact` WHERE `attag` = '%s' OR `nick` = '%s' AND `uid` = %d ORDER BY `attag` DESC LIMIT 1",
											dbesc($name),
											dbesc($name),
											intval($page_owner_uid)
									);
								}
							}

							if (DBM::is_result($r)) {
								$newname = $r[0]['name'];
								$profile = $r[0]['url'];
								$notify = 'cid:' . $r[0]['id'];
								if (strlen($inform)) {
									$inform .= ',';
								}
								$inform .= $notify;
							}
						}
						if ($profile) {
							if (substr($notify, 0, 4) === 'cid:') {
								$taginfo[] = array($newname, $profile, $notify, $r[0], '@[url=' . str_replace(',','%2c',$profile) . ']' . $newname . '[/url]');
							} else {
								$taginfo[] = array($newname, $profile, $notify, null, $str_tags .= '@[url=' . $profile . ']' . $newname . '[/url]');
							}
							if (strlen($str_tags)) {
								$str_tags .= ',';
							}
							$profile = str_replace(',', '%2c', $profile);
							$str_tags .= '@[url='.$profile.']'.$newname.'[/url]';
						}
					} elseif (strpos($tag, '#') === 0) {
						$tagname = substr($tag, 1);
						$str_tags .= '#[url=' . System::baseUrl() . "/search?tag=" . $tagname . ']' . $tagname . '[/url]';
					}
				}
			}

			$newtag = $old_tag;
			if (strlen($newtag) && strlen($str_tags)) {
				$newtag .= ',';
			}
			$newtag .= $str_tags;

			$newinform = $old_inform;
			if (strlen($newinform) && strlen($inform)) {
				$newinform .= ',';
			}
			$newinform .= $inform;

			$r = q("UPDATE `item` SET `tag` = '%s', `inform` = '%s', `edited` = '%s', `changed` = '%s' WHERE `id` = %d AND `uid` = %d",
				dbesc($newtag),
				dbesc($newinform),
				dbesc(datetime_convert()),
				dbesc(datetime_convert()),
				intval($item_id),
				intval($page_owner_uid)
			);
			create_tags_from_item($item_id);
			update_thread($item_id);

			$best = 0;
			foreach ($p as $scales) {
				if (intval($scales['scale']) == 2) {
					$best = 2;
					break;
				}
				if (intval($scales['scale']) == 4) {
					$best = 4;
					break;
				}
			}

			if (count($taginfo)) {
				foreach ($taginfo as $tagged) {

					$uri = item_new_uri($a->get_hostname(),$page_owner_uid);

					$arr = array();
					$arr['guid']          = get_guid(32);
					$arr['uid']           = $page_owner_uid;
					$arr['uri']           = $uri;
					$arr['parent-uri']    = $uri;
					$arr['type']          = 'activity';
					$arr['wall']          = 1;
					$arr['contact-id']    = $owner_record['id'];
					$arr['owner-name']    = $owner_record['name'];
					$arr['owner-link']    = $owner_record['url'];
					$arr['owner-avatar']  = $owner_record['thumb'];
					$arr['author-name']   = $owner_record['name'];
					$arr['author-link']   = $owner_record['url'];
					$arr['author-avatar'] = $owner_record['thumb'];
					$arr['title']         = '';
					$arr['allow_cid']     = $p[0]['allow_cid'];
					$arr['allow_gid']     = $p[0]['allow_gid'];
					$arr['deny_cid']      = $p[0]['deny_cid'];
					$arr['deny_gid']      = $p[0]['deny_gid'];
					$arr['last-child']    = 1;
					$arr['visible']       = 1;
					$arr['verb']          = ACTIVITY_TAG;
					$arr['object-type']   = ACTIVITY_OBJ_PERSON;
					$arr['target-type']   = ACTIVITY_OBJ_IMAGE;
					$arr['tag']           = $tagged[4];
					$arr['inform']        = $tagged[2];
					$arr['origin']        = 1;
					$arr['body']          = sprintf( t('%1$s was tagged in %2$s by %3$s'), '[url=' . $tagged[1] . ']' . $tagged[0] . '[/url]', '[url=' . System::baseUrl() . '/photos/' . $owner_record['nickname'] . '/image/' . $p[0]['resource-id'] . ']' . t('a photo') . '[/url]', '[url=' . $owner_record['url'] . ']' . $owner_record['name'] . '[/url]') ;
					$arr['body'] .= "\n\n" . '[url=' . System::baseUrl() . '/photos/' . $owner_record['nickname'] . '/image/' . $p[0]['resource-id'] . ']' . '[img]' . System::baseUrl() . "/photo/" . $p[0]['resource-id'] . '-' . $best . '.' . $ext . '[/img][/url]' . "\n" ;

					$arr['object'] = '<object><type>' . ACTIVITY_OBJ_PERSON . '</type><title>' . $tagged[0] . '</title><id>' . $tagged[1] . '/' . $tagged[0] . '</id>';
					$arr['object'] .= '<link>' . xmlify('<link rel="alternate" type="text/html" href="' . $tagged[1] . '" />' . "\n");
					if ($tagged[3]) {
						$arr['object'] .= xmlify('<link rel="photo" type="'.$p[0]['type'].'" href="' . $tagged[3]['photo'] . '" />' . "\n");
					}
					$arr['object'] .= '</link></object>' . "\n";

					$arr['target'] = '<target><type>' . ACTIVITY_OBJ_IMAGE . '</type><title>' . $p[0]['desc'] . '</title><id>'
						. System::baseUrl() . '/photos/' . $owner_record['nickname'] . '/image/' . $p[0]['resource-id'] . '</id>';
					$arr['target'] .= '<link>' . xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/photos/' . $owner_record['nickname'] . '/image/' . $p[0]['resource-id'] . '" />' . "\n" . '<link rel="preview" type="'.$p[0]['type'].'" href="' . System::baseUrl() . "/photo/" . $p[0]['resource-id'] . '-' . $best . '.' . $ext . '" />') . '</link></target>';

					$item_id = item_store($arr);
					if ($item_id) {
						Worker::add(PRIORITY_HIGH, "Notifier", "tag", $item_id);
					}
				}
			}
		}
		goaway($_SESSION['photo_return']);
		return; // NOTREACHED
	}


	/**
	 * default post action - upload a photo
	 */

	call_hooks('photo_post_init', $_POST);

	/**
	 * Determine the album to use
	 */

	$album    = notags(trim($_REQUEST['album']));
	$newalbum = notags(trim($_REQUEST['newalbum']));

	logger('mod/photos.php: photos_post(): album= ' . $album . ' newalbum= ' . $newalbum , LOGGER_DEBUG);

	if (!strlen($album)) {
		if (strlen($newalbum)) {
			$album = $newalbum;
		} else {
			$album = datetime_convert('UTC',date_default_timezone_get(),'now', 'Y');
		}
	}

	/*
	 * We create a wall item for every photo, but we don't want to
	 * overwhelm the data stream with a hundred newly uploaded photos.
	 * So we will make the first photo uploaded to this album in the last several hours
	 * visible by default, the rest will become visible over time when and if
	 * they acquire comments, likes, dislikes, and/or tags
	 */

	$r = q("SELECT * FROM `photo` WHERE `album` = '%s' AND `uid` = %d AND `created` > UTC_TIMESTAMP() - INTERVAL 3 HOUR ",
		dbesc($album),
		intval($page_owner_uid)
	);
	if (!DBM::is_result($r) || ($album == t('Profile Photos'))) {
		$visible = 1;
	} else {
		$visible = 0;
	}

	if (intval($_REQUEST['not_visible']) || $_REQUEST['not_visible'] === 'true') {
		$visible = 0;
	}

	$str_group_allow   = perms2str((is_array($_REQUEST['group_allow'])   ? $_REQUEST['group_allow']   : explode(',', $_REQUEST['group_allow'])));
	$str_contact_allow = perms2str((is_array($_REQUEST['contact_allow']) ? $_REQUEST['contact_allow'] : explode(',', $_REQUEST['contact_allow'])));
	$str_group_deny    = perms2str((is_array($_REQUEST['group_deny'])    ? $_REQUEST['group_deny']    : explode(',', $_REQUEST['group_deny'])));
	$str_contact_deny  = perms2str((is_array($_REQUEST['contact_deny'])  ? $_REQUEST['contact_deny']  : explode(',', $_REQUEST['contact_deny'])));

	$ret = array('src' => '', 'filename' => '', 'filesize' => 0, 'type' => '');

	call_hooks('photo_post_file',$ret);

	if (x($ret,'src') && x($ret,'filesize')) {
		$src      = $ret['src'];
		$filename = $ret['filename'];
		$filesize = $ret['filesize'];
		$type     = $ret['type'];
	} else {
		$src        = $_FILES['userfile']['tmp_name'];
		$filename   = basename($_FILES['userfile']['name']);
		$filesize   = intval($_FILES['userfile']['size']);
		$type       = $_FILES['userfile']['type'];
	}
	if ($type == "") {
		$type = Image::guessType($filename);
	}

	logger('photos: upload: received file: ' . $filename . ' as ' . $src . ' ('. $type . ') ' . $filesize . ' bytes', LOGGER_DEBUG);

	$maximagesize = Config::get('system','maximagesize');

	if ($maximagesize && ($filesize > $maximagesize)) {
		notice( sprintf(t('Image exceeds size limit of %s'), formatBytes($maximagesize)) . EOL);
		@unlink($src);
		$foo = 0;
		call_hooks('photo_post_end',$foo);
		return;
	}

	if (!$filesize) {
		notice( t('Image file is empty.') . EOL);
		@unlink($src);
		$foo = 0;
		call_hooks('photo_post_end',$foo);
		return;
	}

	logger('mod/photos.php: photos_post(): loading the contents of ' . $src , LOGGER_DEBUG);

	$imagedata = @file_get_contents($src);

	$Image = new Image($imagedata, $type);

	if (!$Image->isValid()) {
		logger('mod/photos.php: photos_post(): unable to process image' , LOGGER_DEBUG);
		notice( t('Unable to process image.') . EOL );
		@unlink($src);
		$foo = 0;
		call_hooks('photo_post_end',$foo);
		killme();
	}

	$exif = $Image->orient($src);
	@unlink($src);

	$max_length = Config::get('system', 'max_image_length');
	if (!$max_length) {
		$max_length = MAX_IMAGE_LENGTH;
	}
	if ($max_length > 0) {
		$Image->scaleDown($max_length);
	}

	$width  = $Image->getWidth();
	$height = $Image->getHeight();

	$smallest = 0;

	$photo_hash = photo_new_resource();

	$r = Photo::store($Image, $page_owner_uid, $visitor, $photo_hash, $filename, $album, 0 , 0, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny);

	if (!$r) {
		logger('mod/photos.php: photos_post(): image store failed' , LOGGER_DEBUG);
		notice( t('Image upload failed.') . EOL );
		killme();
	}

	if ($width > 640 || $height > 640) {
		$Image->scaleDown(640);
		Photo::store($Image, $page_owner_uid, $visitor, $photo_hash, $filename, $album, 1, 0, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny);
		$smallest = 1;
	}

	if ($width > 320 || $height > 320) {
		$Image->scaleDown(320);
		Photo::store($Image, $page_owner_uid, $visitor, $photo_hash, $filename, $album, 2, 0, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny);
		$smallest = 2;
	}

	$basename = basename($filename);
	$uri = item_new_uri($a->get_hostname(), $page_owner_uid);

	// Create item container

	$lat = $lon = null;

	/// @TODO merge these 2 if() into one?
	if ($exif && $exif['GPS']) {
		if (Feature::isEnabled($channel_id,'photo_location')) {
			$lat = getGps($exif['GPS']['GPSLatitude'], $exif['GPS']['GPSLatitudeRef']);
			$lon = getGps($exif['GPS']['GPSLongitude'], $exif['GPS']['GPSLongitudeRef']);
		}
	}

	$arr = array();

	if ($lat && $lon) {
		$arr['coord'] = $lat . ' ' . $lon;
	}

	$arr['guid']          = get_guid(32);
	$arr['uid']           = $page_owner_uid;
	$arr['uri']           = $uri;
	$arr['parent-uri']    = $uri;
	$arr['type']          = 'photo';
	$arr['wall']          = 1;
	$arr['resource-id']   = $photo_hash;
	$arr['contact-id']    = $owner_record['id'];
	$arr['owner-name']    = $owner_record['name'];
	$arr['owner-link']    = $owner_record['url'];
	$arr['owner-avatar']  = $owner_record['thumb'];
	$arr['author-name']   = $owner_record['name'];
	$arr['author-link']   = $owner_record['url'];
	$arr['author-avatar'] = $owner_record['thumb'];
	$arr['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['last-child']    = 1;
	$arr['visible']       = $visible;
	$arr['origin']        = 1;

	$arr['body']          = '[url=' . System::baseUrl() . '/photos/' . $owner_record['nickname'] . '/image/' . $photo_hash . ']'
				. '[img]' . System::baseUrl() . "/photo/{$photo_hash}-{$smallest}.".$Image->getExt() . '[/img]'
				. '[/url]';

	$item_id = item_store($arr);
	// Update the photo albums cache
	photo_albums($page_owner_uid, true);

	if ($visible) {
		Worker::add(PRIORITY_HIGH, "Notifier", 'wall-new', $item_id);
	}

	call_hooks('photo_post_end',intval($item_id));

	/*
	 * addon uploaders should call "killme()" [e.g. exit] within the photo_post_end hook
	 * if they do not wish to be redirected
	 */

	goaway($_SESSION['photo_return']);
	// NOTREACHED
}

function photos_content(App $a) {

	// URLs:
	// photos/name
	// photos/name/upload
	// photos/name/upload/xxxxx (xxxxx is album name)
	// photos/name/album/xxxxx
	// photos/name/album/xxxxx/edit
	// photos/name/image/xxxxx
	// photos/name/image/xxxxx/edit


	if (Config::get('system', 'block_public') && !local_user() && !remote_user()) {
		notice( t('Public access denied.') . EOL);
		return;
	}

	require_once 'include/bbcode.php';
	require_once 'include/security.php';
	require_once 'include/conversation.php';

	if (!x($a->data,'user')) {
		notice( t('No photos selected') . EOL );
		return;
	}

	$phototypes = Image::supportedTypes();

	$_SESSION['photo_return'] = $a->cmd;

	//
	// Parse arguments
	//

	if ($a->argc > 3) {
		$datatype = $a->argv[2];
		$datum = $a->argv[3];
	} elseif (($a->argc > 2) && ($a->argv[2] === 'upload')) {
		$datatype = 'upload';
	} else {
		$datatype = 'summary';
	}

	if ($a->argc > 4) {
		$cmd = $a->argv[4];
	} else {
		$cmd = 'view';
	}

	//
	// Setup permissions structures
	//

	$can_post       = false;
	$visitor        = 0;
	$contact        = null;
	$remote_contact = false;
	$contact_id     = 0;

	$owner_uid = $a->data['user']['uid'];

	$community_page = (($a->data['user']['page-flags'] == PAGE_COMMUNITY) ? true : false);

	if (local_user() && (local_user() == $owner_uid)) {
		$can_post = true;
	} else {
		if ($community_page && remote_user()) {
			if (is_array($_SESSION['remote'])) {
				foreach ($_SESSION['remote'] as $v) {
					if ($v['uid'] == $owner_uid) {
						$contact_id = $v['cid'];
						break;
					}
				}
			}
			if ($contact_id) {

				$r = q("SELECT `uid` FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
					intval($contact_id),
					intval($owner_uid)
				);
				if (DBM::is_result($r)) {
					$can_post = true;
					$contact = $r[0];
					$remote_contact = true;
					$visitor = $contact_id;
				}
			}
		}
	}

	// perhaps they're visiting - but not a community page, so they wouldn't have write access

	if (remote_user() && !$visitor) {
		$contact_id = 0;
		if (is_array($_SESSION['remote'])) {
			foreach ($_SESSION['remote'] as $v) {
				if ($v['uid'] == $owner_uid) {
					$contact_id = $v['cid'];
					break;
				}
			}
		}
		if ($contact_id) {
			$groups = init_groups_visitor($contact_id);
			$r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `id` = %d AND `uid` = %d LIMIT 1",
				intval($contact_id),
				intval($owner_uid)
			);
			if (DBM::is_result($r)) {
				$contact = $r[0];
				$remote_contact = true;
			}
		}
	}

	/// @TODO merge these 2 if() into one?
	if (!$remote_contact) {
		if (local_user()) {
			$contact_id = $_SESSION['cid'];
			$contact = $a->contact;
		}
	}

	if ($a->data['user']['hidewall'] && (local_user() != $owner_uid) && !$remote_contact) {
		notice( t('Access to this item is restricted.') . EOL);
		return;
	}

	$sql_extra = permissions_sql($owner_uid,$remote_contact,$groups);

	$o = "";

	// tabs
	$is_owner = (local_user() && (local_user() == $owner_uid));
	$o .= profile_tabs($a, $is_owner, $a->data['user']['nickname']);

	/**
	 * Display upload form
	 */

	if ($datatype === 'upload') {
		if (!$can_post) {
			notice(t('Permission denied.'));
			return;
		}


		$selname = ($datum ? hex2bin($datum) : '');


		$albumselect = '';


		$albumselect .= '<option value="" ' . (!$selname ? ' selected="selected" ' : '') . '>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</option>';
		if (count($a->data['albums'])) {
			foreach ($a->data['albums'] as $album) {
				if (($album['album'] === '') || ($album['album'] === 'Contact Photos') || ($album['album'] === t('Contact Photos'))) {
					continue;
				}
				$selected = (($selname === $album['album']) ? ' selected="selected" ' : '');
				$albumselect .= '<option value="' . $album['album'] . '"' . $selected . '>' . $album['album'] . '</option>';
			}
		}

		$uploader = '';

		$ret = array('post_url' => 'photos/' . $a->data['user']['nickname'],
				'addon_text' => $uploader,
				'default_upload' => true);

		call_hooks('photo_upload_form',$ret);

		$default_upload_box = replace_macros(get_markup_template('photos_default_uploader_box.tpl'), array());
		$default_upload_submit = replace_macros(get_markup_template('photos_default_uploader_submit.tpl'), array(
			'$submit' => t('Submit'),
		));

		$usage_message = '';

		// Private/public post links for the non-JS ACL form
		$private_post = 1;
		if ($_REQUEST['public']) {
			$private_post = 0;
		}

		$query_str = $a->query_string;
		if (strpos($query_str, 'public=1') !== false) {
			$query_str = str_replace(array('?public=1', '&public=1'), array('', ''), $query_str);
		}

		/*
		 * I think $a->query_string may never have ? in it, but I could be wrong
		 * It looks like it's from the index.php?q=[etc] rewrite that the web
		 * server does, which converts any ? to &, e.g. suggest&ignore=61 for suggest?ignore=61
		 */
		if (strpos($query_str, '?') === false) {
			$public_post_link = '?public=1';
		} else {
			$public_post_link = '&public=1';
		}

		$tpl = get_markup_template('photos_upload.tpl');

		$albumselect_e = $albumselect;
		$aclselect_e = ($visitor ? '' : populate_acl($a->user));

		$o .= replace_macros($tpl,array(
			'$pagename' => t('Upload Photos'),
			'$sessid' => session_id(),
			'$usage' => $usage_message,
			'$nickname' => $a->data['user']['nickname'],
			'$newalbum' => t('New album name: '),
			'$existalbumtext' => t('or existing album name: '),
			'$nosharetext' => t('Do not show a status post for this upload'),
			'$albumselect' => $albumselect_e,
			'$permissions' => t('Permissions'),
			'$aclselect' => $aclselect_e,
			'$alt_uploader' => $ret['addon_text'],
			'$default_upload_box' => ($ret['default_upload'] ? $default_upload_box : ''),
			'$default_upload_submit' => ($ret['default_upload'] ? $default_upload_submit : ''),
			'$uploadurl' => $ret['post_url'],

			// ACL permissions box
			'$acl_data' => construct_acl_data($a, $a->user), // For non-Javascript ACL selector
			'$group_perms' => t('Show to Groups'),
			'$contact_perms' => t('Show to Contacts'),
			'$private' => t('Private Photo'),
			'$public' => t('Public Photo'),
			'$is_private' => $private_post,
			'$return_path' => $query_str,
			'$public_link' => $public_post_link,

		));

		return $o;
	}

	/*
	 * Display a single photo album
	 */

	if ($datatype === 'album') {

		$album = hex2bin($datum);

		$r = q("SELECT `resource-id`, max(`scale`) AS `scale` FROM `photo` WHERE `uid` = %d AND `album` = '%s'
			AND `scale` <= 4 $sql_extra GROUP BY `resource-id`",
			intval($owner_uid),
			dbesc($album)
		);
		if (DBM::is_result($r)) {
			$a->set_pager_total(count($r));
			$a->set_pager_itemspage(20);
		}

		/// @TODO I have seen this many times, maybe generalize it script-wide and encapsulate it?
		if ($_GET['order'] === 'posted') {
			$order = 'ASC';
		} else {
			$order = 'DESC';
		}

		$r = q("SELECT `resource-id`, ANY_VALUE(`id`) AS `id`, ANY_VALUE(`filename`) AS `filename`,
			ANY_VALUE(`type`) AS `type`, max(`scale`) AS `scale`, ANY_VALUE(`desc`) as `desc`,
			ANY_VALUE(`created`) as `created`
			FROM `photo` WHERE `uid` = %d AND `album` = '%s'
			AND `scale` <= 4 $sql_extra GROUP BY `resource-id` ORDER BY `created` $order LIMIT %d , %d",
			intval($owner_uid),
			dbesc($album),
			intval($a->pager['start']),
			intval($a->pager['itemspage'])
		);

		// edit album name
		if ($cmd === 'edit') {
			if (($album !== t('Profile Photos')) && ($album !== 'Contact Photos') && ($album !== t('Contact Photos'))) {
				if ($can_post) {
					$edit_tpl = get_markup_template('album_edit.tpl');

					$album_e = $album;

					$o .= replace_macros($edit_tpl,array(
						'$nametext' => t('New album name: '),
						'$nickname' => $a->data['user']['nickname'],
						'$album' => $album_e,
						'$hexalbum' => bin2hex($album),
						'$submit' => t('Submit'),
						'$dropsubmit' => t('Delete Album')
					));
				}
			}
		} else {
			if (($album !== t('Profile Photos')) && ($album !== 'Contact Photos') && ($album !== t('Contact Photos')) && $can_post) {
				$edit = array(t('Edit Album'), 'photos/' . $a->data['user']['nickname'] . '/album/' . bin2hex($album) . '/edit');
			}
		}

		if ($_GET['order'] === 'posted') {
			$order =  array(t('Show Newest First'), 'photos/' . $a->data['user']['nickname'] . '/album/' . bin2hex($album));
		} else {
			$order = array(t('Show Oldest First'), 'photos/' . $a->data['user']['nickname'] . '/album/' . bin2hex($album) . '?f=&order=posted');
		}

		$photos = array();

		if (DBM::is_result($r))
			// "Twist" is only used for the duepunto theme with style "slackr"
			$twist = false;
			foreach ($r as $rr) {
				$twist = !$twist;

				$ext = $phototypes[$rr['type']];

				$imgalt_e = $rr['filename'];
				$desc_e = $rr['desc'];

				$photos[] = array(
					'id' => $rr['id'],
					'twist' => ' ' . ($twist ? 'rotleft' : 'rotright') . rand(2,4),
					'link' => 'photos/' . $a->data['user']['nickname'] . '/image/' . $rr['resource-id']
						. (($_GET['order'] === 'posted') ? '?f=&order=posted' : ''),
					'title' => t('View Photo'),
					'src' => 'photo/' . $rr['resource-id'] . '-' . $rr['scale'] . '.' .$ext,
					'alt' => $imgalt_e,
					'desc'=> $desc_e,
					'ext' => $ext,
					'hash'=> $rr['resource_id'],
				);
		}

		$tpl = get_markup_template('photo_album.tpl');
		$o .= replace_macros($tpl, array(
				'$photos' => $photos,
				'$album' => $album,
				'$can_post' => $can_post,
				'$upload' => array(t('Upload New Photos'), 'photos/' . $a->data['user']['nickname'] . '/upload/' . bin2hex($album)),
				'$order' => $order,
				'$edit' => $edit,
				'$paginate' => paginate($a),
			));

		return $o;

	}

	/*
	 * Display one photo
	 */
	if ($datatype === 'image') {

		//$o = '';
		// fetch image, item containing image, then comments

		$ph = q("SELECT * FROM `photo` WHERE `uid` = %d AND `resource-id` = '%s'
			$sql_extra ORDER BY `scale` ASC ",
			intval($owner_uid),
			dbesc($datum)
		);

		if (!DBM::is_result($ph)) {
			$ph = q("SELECT `id` FROM `photo` WHERE `uid` = %d AND `resource-id` = '%s'
				LIMIT 1",
				intval($owner_uid),
				dbesc($datum)
			);
			if (DBM::is_result($ph)) {
				notice(t('Permission denied. Access to this item may be restricted.'));
			} else {
				notice(t('Photo not available') . EOL );
			}
			return;
		}

		$prevlink = '';
		$nextlink = '';

		/// @todo This query is totally bad, the whole functionality has to be changed
		// The query leads to a really intense used index.
		// By now we hide it if someone wants to.
		if (!Config::get('system', 'no_count', false)) {
			if ($_GET['order'] === 'posted') {
				$order = 'ASC';
			} else {
				$order = 'DESC';
			}

			$prvnxt = q("SELECT `resource-id` FROM `photo` WHERE `album` = '%s' AND `uid` = %d AND `scale` = 0
				$sql_extra ORDER BY `created` $order ",
				dbesc($ph[0]['album']),
				intval($owner_uid)
			);

			if (DBM::is_result($prvnxt)) {
				foreach ($prvnxt as $z => $entry) {
					if ($entry['resource-id'] == $ph[0]['resource-id']) {
						$prv = $z - 1;
						$nxt = $z + 1;
						if ($prv < 0) {
							$prv = count($prvnxt) - 1;
						}
						if ($nxt >= count($prvnxt)) {
							$nxt = 0;
						}
						break;
					}
				}
				$edit_suffix = ((($cmd === 'edit') && $can_post) ? '/edit' : '');
				$prevlink = 'photos/' . $a->data['user']['nickname'] . '/image/' . $prvnxt[$prv]['resource-id'] . $edit_suffix . (($_GET['order'] === 'posted') ? '?f=&order=posted' : '');
				$nextlink = 'photos/' . $a->data['user']['nickname'] . '/image/' . $prvnxt[$nxt]['resource-id'] . $edit_suffix . (($_GET['order'] === 'posted') ? '?f=&order=posted' : '');
 			}
		}

		if (count($ph) == 1)
			$hires = $lores = $ph[0];
		if (count($ph) > 1) {
			if ($ph[1]['scale'] == 2) {
				// original is 640 or less, we can display it directly
				$hires = $lores = $ph[0];
			} else {
				$hires = $ph[0];
				$lores = $ph[1];
			}
		}

		$album_link = 'photos/' . $a->data['user']['nickname'] . '/album/' . bin2hex($ph[0]['album']);
		$tools = null;
		$lock = null;

		if ($can_post && ($ph[0]['uid'] == $owner_uid)) {
			$tools = array(
				'edit'	=> array('photos/' . $a->data['user']['nickname'] . '/image/' . $datum . (($cmd === 'edit') ? '' : '/edit'), (($cmd === 'edit') ? t('View photo') : t('Edit photo'))),
				'profile'=>array('profile_photo/use/'.$ph[0]['resource-id'], t('Use as profile photo')),
			);

			// lock
			$lock = ( ( ($ph[0]['uid'] == local_user()) && (strlen($ph[0]['allow_cid']) || strlen($ph[0]['allow_gid'])
					|| strlen($ph[0]['deny_cid']) || strlen($ph[0]['deny_gid'])) )
					? t('Private Message')
					: Null);


		}

		if ( $cmd === 'edit') {
			$tpl = get_markup_template('photo_edit_head.tpl');
			$a->page['htmlhead'] .= replace_macros($tpl,array(
				'$prevlink' => $prevlink,
				'$nextlink' => $nextlink
			));
		}

		if ($prevlink)
			$prevlink = array($prevlink, '<div class="icon prev"></div>') ;

		$photo = array(
			'href' => 'photo/' . $hires['resource-id'] . '-' . $hires['scale'] . '.' . $phototypes[$hires['type']],
			'title'=> t('View Full Size'),
			'src'  => 'photo/' . $lores['resource-id'] . '-' . $lores['scale'] . '.' . $phototypes[$lores['type']] . '?f=&_u=' . datetime_convert('','','','ymdhis'),
			'height' => $hires['height'],
			'width' => $hires['width'],
			'album' => $hires['album'],
			'filename' => $hires['filename'],
		);

		if ($nextlink) {
			$nextlink = array($nextlink, '<div class="icon next"></div>');
		}


		// Do we have an item for this photo?

		// FIXME! - replace following code to display the conversation with our normal
		// conversation functions so that it works correctly and tracks changes
		// in the evolving conversation code.
		// The difference is that we won't be displaying the conversation head item
		// as a "post" but displaying instead the photo it is linked to

		$linked_items = q("SELECT * FROM `item` WHERE `resource-id` = '%s' $sql_extra LIMIT 1",
			dbesc($datum)
		);

		$map = null;

		if (DBM::is_result($linked_items)) {
			$link_item = $linked_items[0];

			$r = q("SELECT COUNT(*) AS `total`
				FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
				WHERE `parent-uri` = '%s' AND `uri` != '%s' AND `item`.`deleted` = 0 and `item`.`moderated` = 0
				AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
				AND `item`.`uid` = %d
				$sql_extra ",
				dbesc($link_item['uri']),
				dbesc($link_item['uri']),
				intval($link_item['uid'])

			);

			if (DBM::is_result($r)) {
				$a->set_pager_total($r[0]['total']);
			}


			$r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
				`contact`.`name`, `contact`.`photo`, `contact`.`url`, `contact`.`network`,
				`contact`.`rel`, `contact`.`thumb`, `contact`.`self`,
				`contact`.`id` AS `cid`, `contact`.`uid` AS `contact-uid`
				FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
				WHERE `parent-uri` = '%s' AND `uri` != '%s' AND `item`.`deleted` = 0 and `item`.`moderated` = 0
				AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
				AND `item`.`uid` = %d
				$sql_extra
				ORDER BY `parent` DESC, `id` ASC LIMIT %d ,%d ",
				dbesc($link_item['uri']),
				dbesc($link_item['uri']),
				intval($link_item['uid']),
				intval($a->pager['start']),
				intval($a->pager['itemspage'])

			);

			if (local_user() && (local_user() == $link_item['uid'])) {
				q("UPDATE `item` SET `unseen` = 0 WHERE `parent` = %d and `uid` = %d",
					intval($link_item['parent']),
					intval(local_user())
				);
				update_thread($link_item['parent']);
			}

			if ($link_item['coord']) {
				$map = Map::byCoordinates($link_item['coord']);
			}
		}

		$tags = null;

		if (count($linked_items) && strlen($link_item['tag'])) {
			$arr = explode(',', $link_item['tag']);
			// parse tags and add links
			$tag_str = '';
			foreach ($arr as $t) {
				if (strlen($tag_str)) {
					$tag_str .= ', ';
				}
				$tag_str .= bbcode($t);
			}
			$tags = array(t('Tags: '), $tag_str);
			if ($cmd === 'edit') {
				$tags[] = 'tagrm/' . $link_item['id'];
				$tags[] = t('[Remove any tag]');
			}
		}


		$edit = Null;
		if (($cmd === 'edit') && $can_post) {
			$edit_tpl = get_markup_template('photo_edit.tpl');

			// Private/public post links for the non-JS ACL form
			$private_post = 1;
			if ($_REQUEST['public']) {
				$private_post = 0;
			}

			$query_str = $a->query_string;
			if (strpos($query_str, 'public=1') !== false) {
				$query_str = str_replace(array('?public=1', '&public=1'), array('', ''), $query_str);
			}

			/*
			 * I think $a->query_string may never have ? in it, but I could be wrong
			 * It looks like it's from the index.php?q=[etc] rewrite that the web
			 * server does, which converts any ? to &, e.g. suggest&ignore=61 for suggest?ignore=61
			 */
			if (strpos($query_str, '?') === false) {
				$public_post_link = '?public=1';
			} else {
				$public_post_link = '&public=1';
			}

			$album_e = $ph[0]['album'];
			$caption_e = $ph[0]['desc'];
			$aclselect_e = populate_acl($ph[0]);

			$edit = replace_macros($edit_tpl, array(
				'$id' => $ph[0]['id'],
				'$album' => array('albname', t('New album name'), $album_e,''),
				'$caption' => array('desc', t('Caption'), $caption_e, ''),
				'$tags' => array('newtag', t('Add a Tag'), "", t('Example: @bob, @Barbara_Jensen, @jim@example.com, #California, #camping')),
				'$rotate_none' => array('rotate', t('Do not rotate'),0,'', true),
				'$rotate_cw' => array('rotate', t('Rotate CW (right)'),1,''),
				'$rotate_ccw' => array('rotate', t('Rotate CCW (left)'),2,''),

				'$nickname' => $a->data['user']['nickname'],
				'$resource_id' => $ph[0]['resource-id'],
				'$permissions' => t('Permissions'),
				'$aclselect' => $aclselect_e,

				'$item_id' => (count($linked_items) ? $link_item['id'] : 0),
				'$submit' => t('Submit'),
				'$delete' => t('Delete Photo'),

				// ACL permissions box
				'$acl_data' => construct_acl_data($a, $ph[0]), // For non-Javascript ACL selector
				'$group_perms' => t('Show to Groups'),
				'$contact_perms' => t('Show to Contacts'),
				'$private' => t('Private photo'),
				'$public' => t('Public photo'),
				'$is_private' => $private_post,
				'$return_path' => $query_str,
				'$public_link' => $public_post_link,
			));
		}

		if (count($linked_items)) {

			$cmnt_tpl = get_markup_template('comment_item.tpl');
			$tpl = get_markup_template('photo_item.tpl');
			$return_url = $a->cmd;

			$like_tpl = get_markup_template('like_noshare.tpl');

			$likebuttons = '';

			if ($can_post || can_write_wall($a, $owner_uid)) {
				$likebuttons = replace_macros($like_tpl, array(
					'$id' => $link_item['id'],
					'$likethis' => t("I like this \x28toggle\x29"),
					'$nolike' => (Feature::isEnabled(local_user(), 'dislike') ? t("I don't like this \x28toggle\x29") : ''),
					'$wait' => t('Please wait'),
					'$return_path' => $a->query_string,
				));
			}

			$comments = '';
			if (!DBM::is_result($r)) {
				if (($can_post || can_write_wall($a, $owner_uid)) && $link_item['last-child']) {
					$comments .= replace_macros($cmnt_tpl, array(
						'$return_path' => '',
						'$jsreload' => $return_url,
						'$type' => 'wall-comment',
						'$id' => $link_item['id'],
						'$parent' => $link_item['id'],
						'$profile_uid' =>  $owner_uid,
						'$mylink' => $contact['url'],
						'$mytitle' => t('This is you'),
						'$myphoto' => $contact['thumb'],
						'$comment' => t('Comment'),
						'$submit' => t('Submit'),
						'$preview' => t('Preview'),
						'$sourceapp' => t($a->sourcename),
						'$ww' => '',
						'$rand_num' => random_digits(12)
					));
				}
			}

			$alike = array();
			$dlike = array();

			$like = '';
			$dislike = '';

			$conv_responses = array(
				'like' => array('title' => t('Likes','title')),'dislike' => array('title' => t('Dislikes','title')),
				'attendyes' => array('title' => t('Attending','title')), 'attendno' => array('title' => t('Not attending','title')), 'attendmaybe' => array('title' => t('Might attend','title'))
			);

			// display comments
			if (DBM::is_result($r)) {

				foreach ($r as $item) {
					builtin_activity_puller($item, $conv_responses);
				}

				$like    = (x($conv_responses['like'], $link_item['uri']) ? format_like($conv_responses['like'][$link_item['uri']], $conv_responses['like'][$link_item['uri'] . '-l'], 'like',$link_item['id']) : '');
				$dislike = (x($conv_responses['dislike'], $link_item['uri']) ? format_like($conv_responses['dislike'][$link_item['uri']], $conv_responses['dislike'][$link_item['uri'] . '-l'], 'dislike',$link_item['id']) : '');

				if (($can_post || can_write_wall($a, $owner_uid)) && $link_item['last-child']) {
					$comments .= replace_macros($cmnt_tpl,array(
						'$return_path' => '',
						'$jsreload' => $return_url,
						'$type' => 'wall-comment',
						'$id' => $link_item['id'],
						'$parent' => $link_item['id'],
						'$profile_uid' =>  $owner_uid,
						'$mylink' => $contact['url'],
						'$mytitle' => t('This is you'),
						'$myphoto' => $contact['thumb'],
						'$comment' => t('Comment'),
						'$submit' => t('Submit'),
						'$preview' => t('Preview'),
						'$sourceapp' => t($a->sourcename),
						'$ww' => '',
						'$rand_num' => random_digits(12)
					));
				}


				foreach ($r as $item) {
					$comment = '';
					$template = $tpl;
					$sparkle = '';

					if ((activity_match($item['verb'], ACTIVITY_LIKE) || activity_match($item['verb'], ACTIVITY_DISLIKE)) && ($item['id'] != $item['parent']))
						continue;

					$redirect_url = 'redir/' . $item['cid'];


					if (local_user() && ($item['contact-uid'] == local_user())
						&& ($item['network'] == NETWORK_DFRN) && !$item['self']) {
						$profile_url = $redirect_url;
						$sparkle = ' sparkle';
					} else {
						$profile_url = $item['url'];
						$sparkle = '';
					}

					$diff_author = (($item['url'] !== $item['author-link']) ? true : false);

					$profile_name   = ((strlen($item['author-name'])   && $diff_author) ? $item['author-name']   : $item['name']);
					$profile_avatar = ((strlen($item['author-avatar']) && $diff_author) ? $item['author-avatar'] : $item['thumb']);

					$profile_link = $profile_url;

					$dropping = (($item['contact-id'] == $contact_id) || ($item['uid'] == local_user()));
					$drop = array(
						'dropping' => $dropping,
						'pagedrop' => false,
						'select' => t('Select'),
						'delete' => t('Delete'),
					);

					$name_e = $profile_name;
					$title_e = $item['title'];
					$body_e = bbcode($item['body']);

					$comments .= replace_macros($template,array(
						'$id' => $item['item_id'],
						'$profile_url' => $profile_link,
						'$name' => $name_e,
						'$thumb' => $profile_avatar,
						'$sparkle' => $sparkle,
						'$title' => $title_e,
						'$body' => $body_e,
						'$ago' => relative_date($item['created']),
						'$indent' => (($item['parent'] != $item['item_id']) ? ' comment' : ''),
						'$drop' => $drop,
						'$comment' => $comment
					));

					if (($can_post || can_write_wall($a, $owner_uid)) && $item['last-child']) {
						$comments .= replace_macros($cmnt_tpl, array(
							'$return_path' => '',
							'$jsreload' => $return_url,
							'$type' => 'wall-comment',
							'$id' => $item['item_id'],
							'$parent' => $item['parent'],
							'$profile_uid' =>  $owner_uid,
							'$mylink' => $contact['url'],
							'$mytitle' => t('This is you'),
							'$myphoto' => $contact['thumb'],
							'$comment' => t('Comment'),
							'$submit' => t('Submit'),
							'$preview' => t('Preview'),
							'$sourceapp' => t($a->sourcename),
							'$ww' => '',
							'$rand_num' => random_digits(12)
						));
					}
				}
			}

			$paginate = paginate($a);
		}


		$response_verbs = array('like');
		if (Feature::isEnabled($owner_uid, 'dislike')) {
			$response_verbs[] = 'dislike';
		}
		$responses = get_responses($conv_responses,$response_verbs, '', $link_item);

		$photo_tpl = get_markup_template('photo_view.tpl');

		$album_e = array($album_link, $ph[0]['album']);
		$tags_e = $tags;
		$like_e = $like;
		$dislike_e = $dislike;

		$o .= replace_macros($photo_tpl, array(
			'$id' => $ph[0]['id'],
			'$album' => $album_e,
			'$tools' => $tools,
			'$lock' => $lock,
			'$photo' => $photo,
			'$prevlink' => $prevlink,
			'$nextlink' => $nextlink,
			'$desc' => $ph[0]['desc'],
			'$tags' => $tags_e,
			'$edit' => $edit,
			'$map' => $map,
			'$map_text' => t('Map'),
			'$likebuttons' => $likebuttons,
			'$like' => $like_e,
			'$dislike' => $dikslike_e,
			'responses' => $responses,
			'$comments' => $comments,
			'$paginate' => $paginate,
		));

		$a->page['htmlhead'] .= "\n" . '<meta name="twitter:card" content="photo" />' . "\n";
		$a->page['htmlhead'] .= '<meta name="twitter:title" content="' . $photo["album"] . '" />' . "\n";
		$a->page['htmlhead'] .= '<meta name="twitter:image" content="' . $photo["href"] . '" />' . "\n";
		$a->page['htmlhead'] .= '<meta name="twitter:image:width" content="' . $photo["width"] . '" />' . "\n";
		$a->page['htmlhead'] .= '<meta name="twitter:image:height" content="' . $photo["height"] . '" />' . "\n";

		return $o;
	}

	// Default - show recent photos with upload link (if applicable)
	//$o = '';

	$r = q("SELECT `resource-id`, max(`scale`) AS `scale` FROM `photo` WHERE `uid` = %d AND `album` != '%s' AND `album` != '%s'
		$sql_extra GROUP BY `resource-id`",
		intval($a->data['user']['uid']),
		dbesc('Contact Photos'),
		dbesc( t('Contact Photos'))
	);
	if (DBM::is_result($r)) {
		$a->set_pager_total(count($r));
		$a->set_pager_itemspage(20);
	}

	$r = q("SELECT `resource-id`, ANY_VALUE(`id`) AS `id`, ANY_VALUE(`filename`) AS `filename`,
		ANY_VALUE(`type`) AS `type`, ANY_VALUE(`album`) AS `album`, max(`scale`) AS `scale`,
		ANY_VALUE(`created`) AS `created` FROM `photo`
		WHERE `uid` = %d AND `album` != '%s' AND `album` != '%s'
		$sql_extra GROUP BY `resource-id` ORDER BY `created` DESC LIMIT %d , %d",
		intval($a->data['user']['uid']),
		dbesc('Contact Photos'),
		dbesc( t('Contact Photos')),
		intval($a->pager['start']),
		intval($a->pager['itemspage'])
	);

	$photos = array();
	if (DBM::is_result($r)) {
		// "Twist" is only used for the duepunto theme with style "slackr"
		$twist = false;
		foreach ($r as $rr) {
			//hide profile photos to others
			if (!$is_owner && !remote_user() && ($rr['album'] == t('Profile Photos')))
				continue;

			$twist = !$twist;

			$ext = $phototypes[$rr['type']];

			$alt_e = $rr['filename'];
			$name_e = $rr['album'];

			$photos[] = array(
				'id'		=> $rr['id'],
				'twist'		=> ' ' . ($twist ? 'rotleft' : 'rotright') . rand(2,4),
				'link'  	=> 'photos/' . $a->data['user']['nickname'] . '/image/' . $rr['resource-id'],
				'title' 	=> t('View Photo'),
				'src'     	=> 'photo/' . $rr['resource-id'] . '-' . ((($rr['scale']) == 6) ? 4 : $rr['scale']) . '.' . $ext,
				'alt'     	=> $alt_e,
				'album'	=> array(
					'link'  => 'photos/' . $a->data['user']['nickname'] . '/album/' . bin2hex($rr['album']),
					'name'  => $name_e,
					'alt'   => t('View Album'),
				),

			);
		}
	}

	$tpl = get_markup_template('photos_recent.tpl');
	$o .= replace_macros($tpl, array(
		'$title' => t('Recent Photos'),
		'$can_post' => $can_post,
		'$upload' => array(t('Upload New Photos'), 'photos/'.$a->data['user']['nickname'].'/upload'),
		'$photos' => $photos,
		'$paginate' => paginate($a),
	));

	return $o;
}