friendica/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/rabuzarus/frio/blob/master/README.md">ReadMe</a> and <a href="https://github.com/rabuzarus/frio">GitHub</a>.
 * Version: V.0.1 Alpha
 * Author: Rabuzarus <https://friendica.kommune4.de/profile/rabuzarus>
 * 
 */

$frio = "view/theme/frio";

global $frio;

function frio_init(&$a) {
	set_template_engine($a, 'smarty3');

	$baseurl = $a->get_baseurl();

	$style = get_pconfig(local_user(), 'frio', 'style');

	$frio = "view/theme/frio";

	global $frio;
	
	


	if ($style == "")
		$style = get_config('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');

	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');

	logger("uninstalled theme frio");
}
/**
 * @brief Replace friendica photo links
 * 
 *  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
 * @param array $body_info The item and its html output
 */
function frio_item_photo_links(&$a, &$body_info) {
	require_once('include/Photo.php');

	$phototypes = Photo::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
 * 
 *  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 The app data
 * @param array $arr Contains item data and the original photo_menu
 */
function frio_item_photo_menu($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 $args Contains contact data and the original photo_menu
 */
function frio_contact_photo_menu($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
		$r = q("SELECT `micro` FROM `contact` WHERE `uid` = %d AND `self` = 1", intval($a->user['uid']));
		
		$r[0]['photo'] = (count($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("Remote");

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

	if(count($r)){
			$nav['userinfo'] = array(
				'icon' => (count($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
 * @param array $results The array with the originals from acl_lookup()
 */
function frio_acl_lookup($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 `self` = 0 AND `pending` = 0 $sql_extra $sql_extra2 ",
			intval($_SESSION['uid']));
		if(count($r)) {
			$total = $r[0]["total"];
		}

		$sql_extra3 = unavailable_networks();

		$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `pending` = 0 $sql_extra $sql_extra2 $sql_extra3 ORDER BY `name` ASC LIMIT 100 ",
			intval($_SESSION['uid'])
		);

		$contacts = array();

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

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