friendica/view/theme/frio/theme.php

<?php
/*
 * Name: frio
 * Description: Bootstrap V3 theme. The theme is currently under construction, so it is far from finished. For further information have a look at the <a href="https://github.com/friendica/friendica/tree/develop/view/theme/frio/README.md">ReadMe</a>.
 * Version: V.0.8
 * Author: Rabuzarus <https://friendica.kommune4.de/profile/rabuzarus>
 *
 */

use Friendica\App;
use Friendica\Core\Config;
use Friendica\Core\PConfig;
use Friendica\Core\System;
use Friendica\Database\DBM;
use Friendica\Object\Image;

$frio = "view/theme/frio";

global $frio;

function frio_init(App $a) {

	// disable the events module link in the profile tab
	$a->theme_events_in_profile = false;

	$a->set_template_engine('smarty3');

	$baseurl = System::baseUrl();

	$style = PConfig::get(local_user(), 'frio', 'style');

	$frio = "view/theme/frio";

	global $frio;

	// if the device is a mobile device set js is_mobile
	// variable so the js scripts can use this information
	if($a->is_mobile || $a->is_tablet) {
		$a->page["htmlhead"] .= <<< EOT
			<script type="text/javascript">
				var is_mobile = 1;
			</script>
EOT;
}

	if ($style == "")
		$style = Config::get('frio', 'style');
}

function frio_install() {
	register_hook('prepare_body_final', 'view/theme/frio/theme.php', 'frio_item_photo_links');
	register_hook('item_photo_menu', 'view/theme/frio/theme.php', 'frio_item_photo_menu');
	register_hook('contact_photo_menu', 'view/theme/frio/theme.php', 'frio_contact_photo_menu');
	register_hook('nav_info', 'view/theme/frio/theme.php', 'frio_remote_nav');
	register_hook('acl_lookup_end', 'view/theme/frio/theme.php', 'frio_acl_lookup');
	register_hook('display_item', 'view/theme/frio/theme.php', 'frio_display_item');

	logger("installed theme frio");
}

function frio_uninstall() {
	unregister_hook('prepare_body_final', 'view/theme/frio/theme.php', 'frio_item_photo_links');
	unregister_hook('item_photo_menu', 'view/theme/frio/theme.php', 'frio_item_photo_menu');
	unregister_hook('contact_photo_menu', 'view/theme/frio/theme.php', 'frio_contact_photo_menu');
	unregister_hook('nav_info', 'view/theme/frio/theme.php', 'frio_remote_nav');
	unregister_hook('acl_lookup_end', 'view/theme/frio/theme.php', 'frio_acl_lookup');
	unregister_hook('display_item', 'view/theme/frio/theme.php', 'frio_display_item');

	logger("uninstalled theme frio");
}
/**
 * @brief Replace friendica photo links hook
 *
 *  This function does replace the links to photos
 *  of other friendica users. Original the photos are
 *  linked to the photo page. Now they will linked directly
 *  to the photo file. This function is nessesary to use colorbox
 *  in the network stream
 *
 * @param App $a Unused but required by hook definition
 * @param array $body_info The item and its html output
 */
function frio_item_photo_links(App $a, &$body_info)
{
	$phototypes = Image::supportedTypes();
	$occurence = 1;
	$p = bb_find_open_close($body_info['html'], "<a", ">");

	while($p !== false && ($occurence++ < 500)) {
		$link = substr($body_info['html'], $p['start'], $p['end'] - $p['start']);
		$matches = array();

		preg_match("/\/photos\/[\w]+\/image\/([\w]+)/", $link, $matches);
		if($matches) {
			// Replace the link for the photo's page with a direct link to the photo itself
			$newlink = str_replace($matches[0], "/photo/{$matches[1]}", $link);

			// Add a "quiet" parameter to any redir links to prevent the "XX welcomes YY" info boxes
			$newlink = preg_replace("/href=\"([^\"]+)\/redir\/([^\"]+)&url=([^\"]+)\"/", 'href="$1/redir/$2&quiet=1&url=$3"', $newlink);

			 // Having any arguments to the link for Colorbox causes it to fetch base64 code instead of the image
			$newlink = preg_replace("/\/[?&]zrl=([^&\"]+)/", '', $newlink);

			$body_info['html'] = str_replace($link, $newlink, $body_info['html']);
		}

		$p = bb_find_open_close($body_info['html'], "<a", ">", $occurence);
	}
}

/**
 * @brief Replace links of the item_photo_menu hook
 *
 *  This function replaces the original poke and the message links
 *  to call the addToModal javascript function so this pages can
 *  be loaded in a bootstrap modal
 *
 * @param App $a Unused but required by the hook definition
 * @param array $arr Contains item data and the original photo_menu
 */
function frio_item_photo_menu(App $a, &$arr) {

	foreach($arr["menu"] as $k =>$v) {
		if(strpos($v,'poke/?f=&c=') === 0 || strpos($v,'message/new/') === 0) {
			$v = "javascript:addToModal('" . $v . "'); return false;";
			$arr["menu"][$k] = $v;
		}
	}
	$args = array('item' => $item, 'menu' => $menu);
}

/**
 * @brief Replace links of the contact_photo_menu
 *
 *  This function replaces the original poke and the message links
 *  to call the addToModal javascript function so this pages can
 *  be loaded in a bootstrap modal
 *  Additionally the profile, status and photo page links  will be changed
 *  to don't open in a new tab if the contact is a friendica contact.
 *
 * @param App $a The app data
 * @param array $args Contains contact data and the original photo_menu
 */
function frio_contact_photo_menu(App $a, &$args){

	$pokelink = "";
	$pmlink = "";
	$cid = "";

	$cid = $args["contact"]["id"];
	$pokelink = $args["menu"]["poke"][1];
	$pmlink = $args["menu"]["pm"][1];

	// Set the the indicator for opening the status, profile and photo pages
	// in a new tab to false if the contact a dfrn (friendica) contact
	// We do this because we can go back on foreign friendica pages throuhg
	// friendicas "magic-link" which indicates a friendica user on froreign
	// friendica servers as remote user or visitor
	//
	// The value for opening in a new tab is e.g. when
	// $args["menu"]["status"][2] is true. If the value of the [2] key is true
	// and if it's a friendica contact we set it to false
	foreach($args["menu"] as $k =>$v) {
		if($k === "status" || $k === "profile" || $k === "photos") {
			$v[2] = (($args["contact"]["network"] === "dfrn") ? false : true);
			$args["menu"][$k][2] = $v[2];
		}
	}

	// Add to pm and poke links a new key with the value 'modal'.
	// Later we can make conditions in the corresponing templates (e.g.
	// contact_template.tpl)
	if(strpos($pokelink,'poke/?f=&c='. $cid) !== false)
		$args["menu"]["poke"][3] = "modal";

	if(strpos($pmlink,'message/new/' . $cid) !== false)
		$args["menu"]["pm"][3] = "modal";

	$args = array('contact' => $contact, 'menu' => &$menu);
}

/**
 * @brief Construct remote nav menu
 *
 *  It creates a remote baseurl form $_SESSION for remote users and friendica
 *  visitors. This url will be added to some of the nav links. With this behaviour
 *  the user will come back to her/his own pages on his/her friendica server.
 *  Not all possible links are available (notifications, administrator, manage,
 *  notes aren't available because we have no way the check remote permissions)..
 *  Some links will point to the local pages because the user would expect
 *  local page (these pages are: search, community, help, apps, directory).
 *
 * @param App $a The App class
 * @param array $nav The original nav menu
 */
function frio_remote_nav($a,&$nav) {
	// get the homelink from $_XSESSION
	$homelink = get_my_url();
	if(! $homelink)
		$homelink = ((x($_SESSION,'visitor_home')) ? $_SESSION['visitor_home'] : '');

	// split up the url in it's parts (protocol,domain/directory, /profile/, nickname
	// I'm not familiar with regex, so someone might find a better solutionen
	//
	// E.g $homelink = 'https://friendica.domain.com/profile/mickey' should result in an array
	// with 0 => 'https://friendica.domain.com/profile/mickey' 1 => 'https://',
	// 2 => 'friendica.domain.com' 3 => '/profile/' 4 => 'mickey'
	//
	//$server_url = preg_match('/^(https?:\/\/.*?)\/profile\//2', $homelink);
	preg_match('/^(https?:\/\/)?(.*?)(\/profile\/)(.*)/', $homelink, $url_parts);

	// Construct the server url of the visitor. So we could link back to his/her own menu.
	// And construct a webbie (e.g. mickey@friendica.domain.com for the search in gcontact
	// We use the webbie for search in gcontact because we don't know if gcontact table stores
	// the right value if its http or https protocol
	if(count($url_parts)) {
		$server_url = $url_parts[1] . $url_parts[2];
		$webbie = $url_parts[4] . '@' . $url_parts[2];
	}

	// since $userinfo isn't available for the hook we write it to the nav array
	// this isn't optimal because the contact query will be done now twice
	if (local_user()) {
		// empty the server url for local user because we won't need it
		$server_url = '';
		// user info
		$r = q("SELECT `micro` FROM `contact` WHERE `uid` = %d AND `self`", intval($a->user['uid']));

		$r[0]['photo'] = (DBM::is_result($r) ? $a->remove_baseurl($r[0]['micro']) : "images/person-48.jpg");
		$r[0]['name'] = $a->user['username'];

	} elseif (!local_user() && remote_user()) {
		$r = q("SELECT `name`, `nick`, `micro` AS `photo` FROM `contact` WHERE `id` = %d", intval(remote_user()));
		$nav['remote'] = t("Guest");

	} elseif (get_my_url()) {
		$r = q("SELECT `name`, `nick`, `photo` FROM `gcontact`
				WHERE `addr` = '%s' AND `network` = 'dfrn'",
			dbesc($webbie));
		$nav['remote'] = t("Visitor");
	} else {
		$r = false;
	}

	if (DBM::is_result($r)) {
			$nav['userinfo'] = array(
				'icon' => (DBM::is_result($r) ? $r[0]['photo'] : "images/person-48.jpg"),
				'name' => $r[0]['name'],
			);
		}

	if (!local_user() && !empty($server_url)) {
		$nav['logout'] = Array($server_url . '/logout', t('Logout'), "", t('End this session'));

		// user menu
		$nav['usermenu'][] = Array($server_url . '/profile/' . $a->user['nickname'], t('Status'), "", t('Your posts and conversations'));
		$nav['usermenu'][] = Array($server_url . '/profile/' . $a->user['nickname']. '?tab=profile', t('Profile'), "", t('Your profile page'));
		$nav['usermenu'][] = Array($server_url . '/photos/' . $a->user['nickname'], t('Photos'), "", t('Your photos'));
		$nav['usermenu'][] = Array($server_url . '/videos/' . $a->user['nickname'], t('Videos'), "", t('Your videos'));
		$nav['usermenu'][] = Array($server_url . '/events/', t('Events'), "", t('Your events'));

		// navbar links
		$nav['network'] = array($server_url . '/network', t('Network'), "", t('Conversations from your friends'));
		$nav['events'] = Array($server_url . '/events', t('Events'), "", t('Events and Calendar'));
		$nav['messages'] = array($server_url . '/message', t('Messages'), "", t('Private mail'));
		$nav['settings'] = array($server_url . '/settings', t('Settings'),"", t('Account settings'));
		$nav['contacts'] = array($server_url . '/contacts', t('Contacts'),"", t('Manage/edit friends and contacts'));
		$nav['sitename'] = $a->config['sitename'];
	}
}
/**
 * @brief: Search for contacts
 *
 * This function search for a users contacts. The code is copied from contact search
 * in /mod/contacts.php. With this function the contacts will permitted to acl_lookup()
 * and can grabbed as json. For this we use the type="r". This is usful to to let js
 * grab the contact data.
 * We use this to give the data to textcomplete and have a filter function at the
 * contact page.
 *
 * @param App $a The app data @TODO Unused
 * @param array $results The array with the originals from acl_lookup()
 */
function frio_acl_lookup(App $a, &$results) {
	require_once("mod/contacts.php");

	$nets = ((x($_GET,"nets")) ? notags(trim($_GET["nets"])) : "");

	// we introduce a new search type, r should do the same query like it's
	// done in /mod/contacts for connections
	if ($results["type"] == "r") {
		$searching = false;
		if ($search) {
			$search_hdr = $search;
			$search_txt = dbesc(protect_sprintf(preg_quote($search)));
			$searching = true;
		}
		$sql_extra .= (($searching) ? " AND (`attag` LIKE '%%".dbesc($search_txt)."%%' OR `name` LIKE '%%".dbesc($search_txt)."%%' OR `nick` LIKE '%%".dbesc($search_txt)."%%') " : "");

		if ($nets) {
			$sql_extra .= sprintf(" AND network = '%s' ", dbesc($nets));
		}

		$sql_extra2 = ((($sort_type > 0) && ($sort_type <= CONTACT_IS_FRIEND)) ? sprintf(" AND `rel` = %d ",intval($sort_type)) : '');


		$r = q("SELECT COUNT(*) AS `total` FROM `contact`
			WHERE `uid` = %d AND NOT `self` AND NOT `pending` $sql_extra $sql_extra2 ",
			intval($_SESSION['uid']));
		if (DBM::is_result($r)) {
			$total = $r[0]["total"];
		}

		$sql_extra3 = unavailable_networks();

		$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND NOT `self` AND NOT `pending` $sql_extra $sql_extra2 $sql_extra3 ORDER BY `name` ASC LIMIT 100 ",
			intval($_SESSION['uid'])
		);

		$contacts = array();

		if (DBM::is_result($r)) {
			foreach ($r as $rr) {
				$contacts[] = _contact_detail_for_template($rr);
			}
		}

		$results["items"] = $contacts;
		$results["tot"] = $total;
	}
}

/**
 * @brief Manipulate the data of the item
 * 
 * At the moment we use this function to add some own stuff to the item menu
 * 
 * @param App $a App $a The app data
 * @param array $arr Array with the item and the item actions<br>
 *     'item' => Array with item data<br>
 *     'output' => Array with item actions<br>
 */
function frio_display_item(App $a,&$arr) {

	// Add subthread to the item menu
	$subthread = array();
	if ((local_user()) && local_user() == $arr['item']['uid'] && $arr['item']['parent'] == $arr['item']['id'] && (! $arr['item']['self'])) {
		$subthread = array(
			'menu'   => 'follow_thread',
			'title'  => t('Follow Thread'),
			'action' => 'dosubthread(' . $arr['item']['id'] . '); return false;',
			'href'   => '#'
		);
	}
	$arr['output']['subthread'] = $subthread;
}