438 lines
		
	
	
	
		
			14 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			438 lines
		
	
	
	
		
			14 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * @file mod/display.php
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 */
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use Friendica\App;
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use Friendica\Content\Text\BBCode;
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use Friendica\Core\Config;
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use Friendica\Core\L10n;
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use Friendica\Core\Protocol;
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use Friendica\Core\System;
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use Friendica\Database\DBM;
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use Friendica\Model\Contact;
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use Friendica\Model\Group;
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use Friendica\Model\Profile;
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use Friendica\Protocol\DFRN;
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function display_init(App $a)
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{
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	if (Config::get('system', 'block_public') && !local_user() && !remote_user()) {
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		return;
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	}
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	$nick = (($a->argc > 1) ? $a->argv[1] : '');
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	$profiledata = [];
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	if ($a->argc == 3) {
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		if (substr($a->argv[2], -5) == '.atom') {
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			$item_id = substr($a->argv[2], 0, -5);
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			displayShowFeed($item_id, false);
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		}
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	}
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	if ($a->argc == 4) {
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		if ($a->argv[3] == 'conversation.atom') {
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			$item_id = $a->argv[2];
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			displayShowFeed($item_id, true);
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		}
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	}
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	$r = false;
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	// If there is only one parameter, then check if this parameter could be a guid
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	if ($a->argc == 2) {
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		$nick = "";
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		$r = false;
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		// Does the local user have this item?
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		if (local_user()) {
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			$r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
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						`author-avatar`, `network`, `body`, `uid`, `owner-link`
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				FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
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					AND `guid` = ? AND `uid` = ? LIMIT 1", $a->argv[1], local_user());
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			if (DBM::is_result($r)) {
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				$nick = $a->user["nickname"];
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			}
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		}
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		// Is it an item with uid=0?
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		if (!DBM::is_result($r)) {
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			$r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
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						`author-avatar`, `network`, `body`, `uid`, `owner-link`
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				FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
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					AND NOT `private` AND `uid` = 0
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					AND `guid` = ? LIMIT 1", $a->argv[1]);
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		}
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		if (!DBM::is_result($r)) {
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			$a->error = 404;
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			notice(L10n::t('Item not found.') . EOL);
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			return;
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		}
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	} elseif (($a->argc == 3) && ($nick == 'feed-item')) {
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		$r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
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					`author-avatar`, `network`, `body`, `uid`, `owner-link`
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			FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
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				AND NOT `private` AND `uid` = 0
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				AND `id` = ? LIMIT 1", $a->argv[2]);
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	}
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	if (DBM::is_result($r)) {
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		if (strstr($_SERVER['HTTP_ACCEPT'], 'application/atom+xml')) {
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			logger('Directly serving XML for id '.$r["id"], LOGGER_DEBUG);
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			displayShowFeed($r["id"], false);
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		}
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		if ($r["id"] != $r["parent"]) {
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			$r = dba::fetch_first("SELECT `id`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
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				WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
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					AND `id` = ?", $r["parent"]);
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		}
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		$profiledata = display_fetchauthor($a, $r);
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		if (strstr(normalise_link($profiledata["url"]), normalise_link(System::baseUrl()))) {
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			$nickname = str_replace(normalise_link(System::baseUrl())."/profile/", "", normalise_link($profiledata["url"]));
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			if (($nickname != $a->user["nickname"])) {
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				$r = dba::fetch_first("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
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					INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
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					WHERE `user`.`nickname` = ? AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
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					$nickname
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				);
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				if (DBM::is_result($r)) {
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					$profiledata = $r;
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				}
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				$profiledata["network"] = NETWORK_DFRN;
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			} else {
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				$profiledata = [];
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			}
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		}
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	}
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	Profile::load($a, $nick, 0, $profiledata);
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}
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function display_fetchauthor($a, $item) {
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	$profiledata = [];
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	$profiledata["uid"] = -1;
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	$profiledata["nickname"] = $item["author-name"];
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	$profiledata["name"] = $item["author-name"];
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	$profiledata["picdate"] = "";
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	$profiledata["photo"] = $item["author-avatar"];
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	$profiledata["url"] = $item["author-link"];
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	$profiledata["network"] = $item["network"];
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	// Check for a repeated message
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	$skip = false;
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	$body = trim($item["body"]);
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	// Skip if it isn't a pure repeated messages
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	// Does it start with a share?
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	if (!$skip && strpos($body, "[share") > 0) {
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		$skip = true;
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	}
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	// Does it end with a share?
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	if (!$skip && (strlen($body) > (strrpos($body, "[/share]") + 8))) {
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		$skip = true;
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	}
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	if (!$skip) {
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		$attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
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		// Skip if there is no shared message in there
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		if ($body == $attributes) {
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			$skip = true;
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		}
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	}
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	if (!$skip) {
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		$author = "";
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		preg_match("/author='(.*?)'/ism", $attributes, $matches);
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		if ($matches[1] != "") {
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			$profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
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		}
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		preg_match('/author="(.*?)"/ism', $attributes, $matches);
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		if ($matches[1] != "") {
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			$profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
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		}
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		$profile = "";
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		preg_match("/profile='(.*?)'/ism", $attributes, $matches);
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		if ($matches[1] != "") {
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			$profiledata["url"] = $matches[1];
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		}
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		preg_match('/profile="(.*?)"/ism', $attributes, $matches);
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		if ($matches[1] != "") {
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			$profiledata["url"] = $matches[1];
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		}
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		$avatar = "";
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		preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
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		if ($matches[1] != "") {
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			$profiledata["photo"] = $matches[1];
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		}
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		preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
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		if ($matches[1] != "") {
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			$profiledata["photo"] = $matches[1];
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		}
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		$profiledata["nickname"] = $profiledata["name"];
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		$profiledata["network"] = Protocol::matchByProfileUrl($profiledata["url"]);
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		$profiledata["address"] = "";
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		$profiledata["about"] = "";
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	}
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	$profiledata = Contact::getDetailsByURL($profiledata["url"], local_user(), $profiledata);
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	$profiledata["photo"] = System::removedBaseUrl($profiledata["photo"]);
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	if (local_user()) {
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		if (in_array($profiledata["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS])) {
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			$profiledata["remoteconnect"] = System::baseUrl()."/follow?url=".urlencode($profiledata["url"]);
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		}
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	} elseif ($profiledata["network"] == NETWORK_DFRN) {
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		$connect = str_replace("/profile/", "/dfrn_request/", $profiledata["url"]);
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		$profiledata["remoteconnect"] = $connect;
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	}
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	return($profiledata);
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}
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function display_content(App $a, $update = false, $update_uid = 0) {
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	if (Config::get('system','block_public') && !local_user() && !remote_user()) {
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		notice(L10n::t('Public access denied.') . EOL);
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		return;
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	}
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	require_once 'include/security.php';
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	require_once 'include/conversation.php';
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	require_once 'include/acl_selectors.php';
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	$o = '';
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	if ($update) {
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		$item_id = $_REQUEST['item_id'];
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		$item = dba::selectFirst('item', ['uid', 'parent'], ['id' => $item_id]);
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		if ($item['uid'] != 0) {
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			$a->profile = ['uid' => intval($item['uid']), 'profile_uid' => intval($item['uid'])];
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		} else {
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			$a->profile = ['uid' => intval($update_uid), 'profile_uid' => intval($update_uid)];
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		}
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		$item_parent = $item['parent'];
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	} else {
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		$item_id = (($a->argc > 2) ? $a->argv[2] : 0);
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		if ($a->argc == 2) {
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			$item_parent = 0;
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			if (local_user()) {
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				$r = dba::fetch_first("SELECT `id`, `parent` FROM `item`
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					WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
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						AND `guid` = ? AND `uid` = ?", $a->argv[1], local_user());
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				if (DBM::is_result($r)) {
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					$item_id = $r["id"];
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					$item_parent = $r["parent"];
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				}
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			}
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			if ($item_parent == 0) {
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				$r = dba::fetch_first("SELECT `item`.`id`, `item`.`parent` FROM `item`
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					WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
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						AND NOT `item`.`private` AND `item`.`uid` = 0
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						AND `item`.`guid` = ?", $a->argv[1]);
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				if (DBM::is_result($r)) {
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					$item_id = $r["id"];
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					$item_parent = $r["parent"];
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				}
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			}
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		}
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	}
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	if (!$item_id) {
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		$a->error = 404;
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		notice(L10n::t('Item not found.').EOL);
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		return;
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	}
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	// We are displaying an "alternate" link if that post was public. See issue 2864
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	$is_public = dba::exists('item', ['id' => $item_id, 'private' => false]);
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	if ($is_public) {
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		// For the atom feed the nickname doesn't matter at all, we only need the item id.
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		$alternate = System::baseUrl().'/display/feed-item/'.$item_id.'.atom';
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		$conversation = System::baseUrl().'/display/feed-item/'.$item_parent.'/conversation.atom';
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	} else {
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		$alternate = '';
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		$conversation = '';
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	}
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	$a->page['htmlhead'] .= replace_macros(get_markup_template('display-head.tpl'),
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				['$alternate' => $alternate,
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					'$conversation' => $conversation]);
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	$groups = [];
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	$contact = null;
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	$remote_contact = false;
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	$contact_id = 0;
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	if (x($_SESSION, 'remote') && is_array($_SESSION['remote'])) {
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		foreach ($_SESSION['remote'] as $v) {
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			if ($v['uid'] == $a->profile['uid']) {
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				$contact_id = $v['cid'];
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				break;
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			}
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		}
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	}
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	if ($contact_id) {
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		$groups = Group::getIdsByContactId($contact_id);
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		$r = dba::fetch_first("SELECT * FROM `contact` WHERE `id` = ? AND `uid` = ? LIMIT 1",
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			$contact_id,
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			$a->profile['uid']
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		);
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		if (DBM::is_result($r)) {
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			$contact = $r;
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			$remote_contact = true;
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		}
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	}
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	if (!$remote_contact) {
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		if (local_user()) {
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			$contact_id = $_SESSION['cid'];
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			$contact = $a->contact;
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		}
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	}
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	$r = dba::fetch_first("SELECT * FROM `contact` WHERE `uid` = ? AND `self` LIMIT 1", $a->profile['uid']);
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	if (DBM::is_result($r)) {
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		$a->page_contact = $r;
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	}
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	$is_owner = (local_user() && (in_array($a->profile['profile_uid'], [local_user(), 0])) ? true : false);
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	if (x($a->profile, 'hidewall') && !$is_owner && !$remote_contact) {
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		notice(L10n::t('Access to this profile has been restricted.') . EOL);
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		return;
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	}
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	// We need the editor here to be able to reshare an item.
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	if ($is_owner) {
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		$x = [
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			'is_owner' => true,
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			'allow_location' => $a->user['allow_location'],
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			'default_location' => $a->user['default-location'],
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			'nickname' => $a->user['nickname'],
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			'lockstate' => (is_array($a->user) && (strlen($a->user['allow_cid']) || strlen($a->user['allow_gid']) || strlen($a->user['deny_cid']) || strlen($a->user['deny_gid'])) ? 'lock' : 'unlock'),
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			'acl' => populate_acl($a->user, true),
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			'bang' => '',
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			'visitor' => 'block',
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			'profile_uid' => local_user(),
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		];
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		$o .= status_editor($a, $x, 0, true);
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	}
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	$sql_extra = item_permissions_sql($a->profile['uid'], $remote_contact, $groups);
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	if ($update) {
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		$r = dba::p("SELECT `id` FROM `item` WHERE
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			`item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
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			$sql_extra AND `unseen`",
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			$item_id
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		);
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		if (dba::num_rows($r) == 0) {
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			return '';
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		}
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	}
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	$r = dba::p(item_query()."AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
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		$sql_extra
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		ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
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		$item_id
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	);
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	if (!DBM::is_result($r)) {
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		notice(L10n::t('Item not found.') . EOL);
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		return $o;
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	}
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	$s = dba::inArray($r);
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	if (local_user() && (local_user() == $a->profile['uid'])) {
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		$unseen = dba::selectFirst('item', ['id'], ['parent' => $s[0]['parent'], 'unseen' => true]);
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		if (DBM::is_result($unseen)) {
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			dba::update('item', ['unseen' => false], ['parent' => $s[0]['parent'], 'unseen' => true]);
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		}
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	}
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	$items = conv_sort($s, "`commented`");
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	if (!$update) {
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		$o .= "<script> var netargs = '?f=&item_id=" . $item_id . "'; </script>";
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	}
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	$o .= conversation($a, $items, 'display', $update_uid);
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	// Preparing the meta header
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	require_once 'include/html2plain.php';
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	$description = trim(html2plain(BBCode::convert($s[0]["body"], false), 0, true));
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	$title = trim(html2plain(BBCode::convert($s[0]["title"], false), 0, true));
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	$author_name = $s[0]["author-name"];
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	$image = $a->remove_baseurl($s[0]["author-thumb"]);
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	if ($title == "") {
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		$title = $author_name;
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	}
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	// Limit the description to 160 characters
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	if (strlen($description) > 160) {
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						|
		$description = substr($description, 0, 157) . '...';
 | 
						|
	}
 | 
						|
 | 
						|
	$description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 | 
						|
	$title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 | 
						|
	$author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 | 
						|
 | 
						|
	//<meta name="keywords" content="">
 | 
						|
	$a->page['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n";
 | 
						|
 | 
						|
	// Schema.org microdata
 | 
						|
	$a->page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
 | 
						|
 | 
						|
	// Twitter cards
 | 
						|
	$a->page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta name="twitter:image" content="'.System::baseUrl().'/'.$image.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$s[0]["plink"].'" />'."\n";
 | 
						|
 | 
						|
	// Dublin Core
 | 
						|
	$a->page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
 | 
						|
 | 
						|
	// Open Graph
 | 
						|
	$a->page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta property="og:image" content="'.System::baseUrl().'/'.$image.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta property="og:url" content="'.$s[0]["plink"].'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
 | 
						|
	$a->page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";
 | 
						|
	// article:tag
 | 
						|
 | 
						|
	return $o;
 | 
						|
}
 | 
						|
 | 
						|
function displayShowFeed($item_id, $conversation) {
 | 
						|
	$xml = DFRN::itemFeed($item_id, $conversation);
 | 
						|
	if ($xml == '') {
 | 
						|
		System::httpExit(500);
 | 
						|
	}
 | 
						|
	header("Content-type: application/atom+xml");
 | 
						|
	echo $xml;
 | 
						|
	killme();
 | 
						|
}
 |