set_time_limit(0);
-define ( 'BUILD_ID' , 1000 );
+define ( 'BUILD_ID', 1017 );
+define ( 'DFRN_PROTOCOL_VERSION', '2.0' );
-define ( 'EOL', "<br />\r\n");
+define ( 'EOL', "<br />\r\n" );
+define ( 'ATOM_TIME', 'Y-m-d\TH:i:s\Z' );
-define ( 'REGISTER_CLOSED', 0);
-define ( 'REGISTER_APPROVE', 1);
-define ( 'REGISTER_OPEN', 2);
+// log levels
-define ( 'DIRECTION_ANY', 0);
-define ( 'DIRECTION_IN', 1);
-define ( 'DIRECTION_OUT', 2);
-define ( 'DIRECTION_BOTH', 3);
+define ( 'LOGGER_NORMAL', 0 );
+define ( 'LOGGER_TRACE', 1 );
+define ( 'LOGGER_DEBUG', 2 );
+define ( 'LOGGER_DATA', 3 );
+define ( 'LOGGER_ALL', 4 );
+
+// registration policy
+
+define ( 'REGISTER_CLOSED', 0 );
+define ( 'REGISTER_APPROVE', 1 );
+define ( 'REGISTER_OPEN', 2 );
+
+// relationship types
+
+define ( 'REL_VIP', 1);
+define ( 'REL_FAN', 2);
+define ( 'REL_BUD', 3);
+
+
+// page/profile types
+// PAGE_NORMAL is a typical personal profile account
+// PAGE_SOAPBOX automatically approves all friend requests as REL_FAN, (readonly)
+// PAGE_COMMUNITY automatically approves all friend requests as REL_FAN, but with
+// write access to wall and comments (no email and not included in page owner's ACL lists)
+// PAGE_FREELOVE automatically approves all friend requests as full friends (REL_BUD).
+
+define ( 'PAGE_NORMAL', 0 );
+define ( 'PAGE_SOAPBOX', 1 );
+define ( 'PAGE_COMMUNITY', 2 );
+define ( 'PAGE_FREELOVE', 3 );
+
+// Maximum number of "people who like (or don't like) this"
+// that we will list by name
+
+define ( 'MAX_LIKERS', 75);
+
+// email notification options
define ( 'NOTIFY_INTRO', 0x0001 );
define ( 'NOTIFY_CONFIRM', 0x0002 );
define ( 'NOTIFY_COMMENT', 0x0008 );
define ( 'NOTIFY_MAIL', 0x0010 );
-define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
-
+// various namespaces we may need to parse
+
+define ( 'NAMESPACE_DFRN' , 'http://purl.org/macgirvin/dfrn/1.0' );
+define ( 'NAMESPACE_THREAD' , 'http://purl.org/syndication/thread/1.0' );
+define ( 'NAMESPACE_TOMB' , 'http://purl.org/atompub/tombstones/1.0' );
+define ( 'NAMESPACE_ACTIVITY', 'http://activitystrea.ms/spec/1.0/' );
+define ( 'NAMESPACE_ACTIVITY_SCHEMA', 'http://activitystrea.ms/schema/1.0/' );
+define ( 'NAMESPACE_MEDIA', 'http://purl.org/syndication/atommedia' );
+define ( 'NAMESPACE_SALMON_ME', 'http://salmon-protocol.org/ns/magic-env' );
+define ( 'NAMESPACE_OSTATUSSUB', 'http://ostatus.org/schema/1.0/subscribe' );
+define ( 'NAMESPACE_GEORSS', 'http://www.georss.org/georss' );
+define ( 'NAMESPACE_POCO', 'http://portablecontacts.net/spec/1.0' );
+define ( 'NAMESPACE_FEED', 'http://schemas.google.com/g/2010#updates-from' );
+
+// activity stream defines
+
+define ( 'ACTIVITY_LIKE', NAMESPACE_ACTIVITY_SCHEMA . 'like' );
+define ( 'ACTIVITY_DISLIKE', NAMESPACE_DFRN . '/dislike' );
+define ( 'ACTIVITY_OBJ_HEART', NAMESPACE_DFRN . '/heart' );
+
+define ( 'ACTIVITY_FRIEND', NAMESPACE_ACTIVITY_SCHEMA . 'make-friend' );
+define ( 'ACTIVITY_FOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'follow' );
+define ( 'ACTIVITY_UNFOLLOW', NAMESPACE_ACTIVITY_SCHEMA . 'unfollow' );
+define ( 'ACTIVITY_POST', NAMESPACE_ACTIVITY_SCHEMA . 'post' );
+define ( 'ACTIVITY_UPDATE', NAMESPACE_ACTIVITY_SCHEMA . 'update' );
+define ( 'ACTIVITY_TAG', NAMESPACE_ACTIVITY_SCHEMA . 'tag' );
+
+define ( 'ACTIVITY_OBJ_COMMENT', NAMESPACE_ACTIVITY_SCHEMA . 'comment' );
+define ( 'ACTIVITY_OBJ_NOTE', NAMESPACE_ACTIVITY_SCHEMA . 'note' );
+define ( 'ACTIVITY_OBJ_PERSON', NAMESPACE_ACTIVITY_SCHEMA . 'person' );
+define ( 'ACTIVITY_OBJ_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'photo' );
+define ( 'ACTIVITY_OBJ_P_PHOTO', NAMESPACE_ACTIVITY_SCHEMA . 'profile-photo' );
+define ( 'ACTIVITY_OBJ_ALBUM', NAMESPACE_ACTIVITY_SCHEMA . 'photo-album' );
+
+// item weight for query ordering
+
+define ( 'GRAVITY_PARENT', 0);
+define ( 'GRAVITY_LIKE', 3);
+define ( 'GRAVITY_COMMENT', 6);
+
+
+// Our main application structure for the life of this page
+// Primarily deals with the URL that got us here
+// and tries to make some sense of it, and
+// stores our page contents and config storage
+// and anything else that might need to be passed around
+// before we spit the page out.
if(! class_exists('App')) {
class App {
public $pager;
public $strings;
public $path;
+ public $interactive = true;
private $scheme;
private $hostname;
private $baseurl;
private $db;
+ private $curl_code;
+ private $curl_headers;
+
function __construct() {
$this->config = array();
$this->page = array();
$this->pager= array();
- $this->scheme = ((isset($_SERVER['HTTPS'])
- && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
- $this->hostname = str_replace('www.','',
- $_SERVER['SERVER_NAME']);
- set_include_path("include/$this->hostname"
- . PATH_SEPARATOR . 'include'
- . PATH_SEPARATOR . '.' );
+ $this->scheme = ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'])) ? 'https' : 'http' );
+
+ if(x($_SERVER,'SERVER_NAME'))
+ $this->hostname = $_SERVER['SERVER_NAME'];
- if(substr($_SERVER['QUERY_STRING'],0,2) == "q=")
+ set_include_path("include/$this->hostname" . PATH_SEPARATOR . 'include' . PATH_SEPARATOR . '.' );
+
+ if((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=")
$_SERVER['QUERY_STRING'] = substr($_SERVER['QUERY_STRING'],2);
- $this->cmd = trim($_GET['q'],'/');
+ if(x($_GET,'q'))
+ $this->cmd = trim($_GET['q'],'/');
$this->argv = explode('/',$this->cmd);
$this->module = 'home';
}
- if($this->cmd == '.well-known/host-meta')
+ if($this->cmd === '.well-known/host-meta')
require_once('include/hostxrd.php');
+
$this->pager['page'] = ((x($_GET,'page')) ? $_GET['page'] : 1);
$this->pager['itemspage'] = 50;
$this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
if(strlen($this->baseurl))
return $this->baseurl;
- $this->baseurl = (($ssl) ? 'https' : $this->scheme) . "://" . $this->hostname
- . ((isset($this->path) && strlen($this->path))
- ? '/' . $this->path : '' );
+ $this->baseurl = (($ssl) ? 'https' : $this->scheme) . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
return $this->baseurl;
}
}
function set_path($p) {
- $this->path = ltrim(trim($p),'/');
+ $this->path = trim(trim($p),'/');
}
function get_path() {
}
function init_pagehead() {
- if(file_exists("view/head.tpl"))
- $s = file_get_contents("view/head.tpl");
- $this->page['htmlhead'] = replace_macros($s,array('$baseurl' => $this->get_baseurl()));
+ $tpl = load_view_file("view/head.tpl");
+ $this->page['htmlhead'] = replace_macros($tpl,array(
+ '$baseurl' => $this->get_baseurl()
+ ));
+ }
+
+ function set_curl_code($code) {
+ $this->curl_code = $code;
+ }
+
+ function get_curl_code() {
+ return $this->curl_code;
}
+ function set_curl_headers($headers) {
+ $this->curl_headers = $headers;
+ }
+
+ function get_curl_headers() {
+ return $this->curl_headers;
+ }
+
+
}}
+// retrieve the App structure
+// useful in functions which require it but don't get it passed to them
+
+if(! function_exists('get_app')) {
+function get_app() {
+ global $a;
+ return $a;
+}};
+
+
+// Multi-purpose function to check variable state.
+// Usage: x($var) or $x($array,'key')
+// returns false if variable/key is not set
+// if variable is set, returns 1 if has 'non-zero' value, otherwise returns 0.
+// e.g. x('') or x(0) returns 0;
if(! function_exists('x')) {
function x($s,$k = NULL) {
}
}}
+// called from db initialisation if db is dead.
+
if(! function_exists('system_unavailable')) {
function system_unavailable() {
include('system_unavailable.php');
killme();
}}
+// Primarily involved with database upgrade, but also sets the
+// base url for use in cmdline programs which don't have
+// $_SERVER variables.
if(! function_exists('check_config')) {
function check_config(&$a) {
- $r = q("SELECT * FROM `config` WHERE `cat` = 'system' AND `k` IN ('url','build')");
- if(! count($r)) {
- q("INSERT INTO `config` (`cat`,`k`,`v`) VALUES ( 'system', 'url', '%s' )",
- dbesc($a->get_baseurl())
- );
- q("INSERT INTO `config` (`cat`,`k`,`v`) VALUES ( 'system', 'build', '%s' )",
- dbesc(BUILD_ID)
- );
- return;
- }
- foreach($r as $rr) {
- if($rr['k'] == 'build') {
- $stored = intval($rr['v']);
- $current = intval(BUILD_ID);
- if(($stored < $current) && file_exists('update.php')) {
- // We're reporting a different version than what is currently installed.
- // Run any existing update scripts to bring the database up to current.
+ load_config('system');
- require_once('update.php');
- for($x = $stored; $x <= $current; $x ++) {
- if(function_exists('update_' . $x)) {
- $func = 'update_' . $x;
- $func($a);
- }
+ $build = get_config('system','build');
+ if(! x($build))
+ $build = set_config('system','build',BUILD_ID);
+
+ $url = get_config('system','url');
+ if(! x($url))
+ $url = set_config('system','url',$a->get_baseurl());
+
+ if($build != BUILD_ID) {
+ $stored = intval($build);
+ $current = intval(BUILD_ID);
+ if(($stored < $current) && file_exists('update.php')) {
+ // We're reporting a different version than what is currently installed.
+ // Run any existing update scripts to bring the database up to current.
+
+ require_once('update.php');
+ for($x = $stored; $x < $current; $x ++) {
+ if(function_exists('update_' . $x)) {
+ $func = 'update_' . $x;
+ $func($a);
}
- q("UPDATE `config` SET `v` = '%s' WHERE `cat` = 'system' AND `k` = 'build' LIMIT 1",
- dbesc(BUILD_ID)
- );
}
+ set_config('system','build', BUILD_ID);
}
}
return;
}}
+// This is our template processor.
+// $s is the string requiring macro substitution.
+// $r is an array of key value pairs (search => replace)
+// returns substituted string.
+// WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
+// For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing,
+// depending on the order in which they were declared in the array.
if(! function_exists('replace_macros')) {
function replace_macros($s,$r) {
}}
+// load string translation table for alternate language
+
if(! function_exists('load_translation_table')) {
function load_translation_table($lang) {
global $a;
+ if(file_exists("view/$lang/strings.php"))
+ include("view/$lang/strings.php");
}}
+// translate string if translation exists
+
if(! function_exists('t')) {
function t($s) {
- global $a;
- if($a->strings[$s])
+ $a = get_app();
+
+ if(x($a->strings,$s))
return $a->strings[$s];
return $s;
}}
+// curl wrapper. If binary flag is true, return binary
+// results.
+
if(! function_exists('fetch_url')) {
-function fetch_url($url,$binary = false) {
+function fetch_url($url,$binary = false, &$redirects = 0) {
$ch = curl_init($url);
- if(! $ch) return false;
+ if(($redirects > 8) || (! $ch))
+ return false;
- curl_setopt($ch, CURLOPT_HEADER, 0);
- curl_setopt($ch, CURLOPT_FOLLOWLOCATION,true);
- curl_setopt($ch, CURLOPT_MAXREDIRS,8);
+ curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
+
+
+ $curl_time = intval(get_config('system','curl_timeout'));
+ if($curl_time)
+ curl_setopt($ch, CURLOPT_TIMEOUT, $curl_time);
+
+ // by default we will allow self-signed certs
+ // but you can override this
+
+ $check_cert = get_config('system','verifyssl');
+ curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
+
+ $prx = get_config('system','proxy');
+ if(strlen($prx)) {
+ curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
+ curl_setopt($ch, CURLOPT_PROXY, $prx);
+ $prxusr = get_config('system','proxyuser');
+ if(strlen($prxusr))
+ curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
+ }
if($binary)
curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
$s = curl_exec($ch);
+
+ $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+ $header = substr($s,0,strpos($s,"\r\n\r\n"));
+ if(stristr($header,'100') && (strlen($header) < 30)) {
+ // 100 Continue has two headers, get the real one
+ $s = substr($s,strlen($header)+4);
+ $header = substr($s,0,strpos($s,"\r\n\r\n"));
+ }
+ if($http_code == 301 || $http_code == 302 || $http_code == 303) {
+ $matches = array();
+ preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
+ $url = trim(array_pop($matches));
+ $url_parsed = parse_url($url);
+ if (isset($url_parsed)) {
+ $redirects++;
+ return fetch_url($url,$binary,$redirects);
+ }
+ }
+ $a = get_app();
+ $a->set_curl_code($http_code);
+ $body = substr($s,strlen($header)+4);
+ $a->set_curl_headers($header);
+
curl_close($ch);
- return($s);
+ return($body);
}}
+// post request to $url. $params is an array of post variables.
if(! function_exists('post_url')) {
-function post_url($url,$params) {
+function post_url($url,$params, $headers = null, &$redirects = 0) {
$ch = curl_init($url);
- if(! $ch) return false;
+ if(($redirects > 8) || (! $ch))
+ return false;
- curl_setopt($ch, CURLOPT_HEADER, 0);
- curl_setopt($ch, CURLOPT_FOLLOWLOCATION,true);
- curl_setopt($ch, CURLOPT_MAXREDIRS,8);
+ curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch, CURLOPT_POST,1);
curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
+ $curl_time = intval(get_config('system','curl_timeout'));
+ if($curl_time)
+ curl_setopt($ch, CURLOPT_TIMEOUT, $curl_time);
+
+ if(is_array($headers))
+ curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
+
+ $check_cert = get_config('system','verifyssl');
+ curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
+ $prx = get_config('system','proxy');
+ if(strlen($prx)) {
+ curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
+ curl_setopt($ch, CURLOPT_PROXY, $prx);
+ $prxusr = get_config('system','proxyuser');
+ if(strlen($prxusr))
+ curl_setopt($ch, CURLOPT_PROXYUSERPWD, $prxusr);
+ }
+
$s = curl_exec($ch);
+
+ $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+ $header = substr($s,0,strpos($s,"\r\n\r\n"));
+ if(stristr($header,'100') && (strlen($header) < 30)) {
+ // 100 Continue has two headers, get the real one
+ $s = substr($s,strlen($header)+4);
+ $header = substr($s,0,strpos($s,"\r\n\r\n"));
+ }
+ if($http_code == 301 || $http_code == 302 || $http_code == 303) {
+ $matches = array();
+ preg_match('/(Location:|URI:)(.*?)\n/', $header, $matches);
+ $url = trim(array_pop($matches));
+ $url_parsed = parse_url($url);
+ if (isset($url_parsed)) {
+ $redirects++;
+ return post_url($url,$binary,$headers,$redirects);
+ }
+ }
+ $a = get_app();
+ $a->set_curl_code($http_code);
+ $body = substr($s,strlen($header)+4);
+ $a->set_curl_headers($header);
+
curl_close($ch);
- return($s);
+ return($body);
}}
+// random hash, 64 chars
if(! function_exists('random_string')) {
function random_string() {
return(hash('sha256',uniqid(rand(),true)));
}}
+// This is our primary input filter. The high bit hack only involved some old
+// IE browser, forget which.
+// Use this on any text input where angle chars are not valid or permitted
+// They will be replaced with safer brackets. This may be filtered further
+// if these are not allowed either.
+
if(! function_exists('notags')) {
function notags($string) {
// protect against :<> with high-bit set
return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
}}
+// use this on "body" or "content" input where angle chars shouldn't be removed,
+// and allow them to be safely displayed.
+
if(! function_exists('escape_tags')) {
function escape_tags($string) {
return(htmlspecialchars($string));
}}
+// wrapper for adding a login box. If $register == true provide a registration
+// link. This will most always depend on the value of $a->config['register_policy'].
+// returns the complete html for inserting into the page
+
if(! function_exists('login')) {
function login($register = false) {
$o = "";
- $register_html = (($register) ? file_get_contents("view/register-link.tpl") : "");
+ $register_html = (($register) ? load_view_file("view/register-link.tpl") : "");
if(x($_SESSION,'authenticated')) {
- $o = file_get_contents("view/logout.tpl");
+ $o = load_view_file("view/logout.tpl");
}
else {
- $o = file_get_contents("view/login.tpl");
+ $o = load_view_file("view/login.tpl");
$o = replace_macros($o,array('$register_html' => $register_html ));
}
return $o;
}}
+// generate a string that's random, but usually pronounceable.
+// used to generate initial passwords
if(! function_exists('autoname')) {
function autoname($len) {
return $word;
}}
+// Used to end the current process, after saving session state.
+
if(! function_exists('killme')) {
function killme() {
session_write_close();
exit;
}}
+// redirect to another URL and terminate this process.
+
if(! function_exists('goaway')) {
function goaway($s) {
header("Location: $s");
killme();
}}
+// Generic XML return
+// Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
+// of $st and an optional text <message> of $message and terminates the current process.
if(! function_exists('xml_status')) {
-function xml_status($st) {
+function xml_status($st, $message = '') {
+
+ $xml_message = ((strlen($message)) ? "\t<message>" . xmlify($message) . "</message>\r\n" : '');
+
+ if($st)
+ logger('xml_status returning non_zero: ' . $st . " message=" . $message);
+
header( "Content-type: text/xml" );
echo '<?xml version="1.0" encoding="UTF-8"?>'."\r\n";
- echo "<result><status>$st</status></result>\r\n";
+ echo "<result>\r\n\t<status>$st</status>\r\n$xml_message</result>\r\n";
killme();
}}
+// Returns the uid of locally logged in user or false.
+
if(! function_exists('local_user')) {
function local_user() {
if((x($_SESSION,'authenticated')) && (x($_SESSION,'uid')))
- return $_SESSION['uid'];
+ return intval($_SESSION['uid']);
return false;
}}
+// Returns contact id of authenticated site visitor or false
+
if(! function_exists('remote_user')) {
function remote_user() {
if((x($_SESSION,'authenticated')) && (x($_SESSION,'visitor_id')))
- return $_SESSION['visitor_id'];
+ return intval($_SESSION['visitor_id']);
return false;
}}
+// contents of $s are displayed prominently on the page the next time
+// a page is loaded. Usually used for errors or alerts.
+
if(! function_exists('notice')) {
function notice($s) {
-
- $_SESSION['sysmsg'] .= $s;
-
+ $a = get_app();
+ if($a->interactive)
+ $_SESSION['sysmsg'] .= $s;
}}
+// wrapper around config to limit the text length of an incoming message
+
if(! function_exists('get_max_import_size')) {
function get_max_import_size() {
global $a;
return ((x($a->config,'max_import_size')) ? $a->config['max_import_size'] : 0 );
}}
+
+// escape text ($str) for XML transport
+// returns escaped text.
+
if(! function_exists('xmlify')) {
function xmlify($str) {
$buffer = '';
$buffer .= '>';
break;
case "\n" :
- $buffer .= ' ';
+ $buffer .= "\n";
break;
default :
$buffer .= $char;
return($buffer);
}}
+// undo an xmlify
+// pass xml escaped text ($s), returns unescaped text
+
if(! function_exists('unxmlify')) {
function unxmlify($s) {
$ret = str_replace('&','&', $s);
return $ret;
}}
+// convenience wrapper, reverse the operation "bin2hex"
+
if(! function_exists('hex2bin')) {
function hex2bin($s) {
return(pack("H*",$s));
}}
+// Automatic pagination.
+// To use, get the count of total items.
+// Then call $a->set_pager_total($number_items);
+// Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
+// Then call paginate($a) after the end of the display loop to insert the pager block on the page
+// (assuming there are enough items to paginate).
+// When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
+// will limit the results to the correct items for the current page.
+// The actual page handling is then accomplished at the application layer.
if(! function_exists('paginate')) {
function paginate(&$a) {
$o = '';
- $stripped = ereg_replace("(&page=[0-9]*)","",$_SERVER['QUERY_STRING']);
+ $stripped = preg_replace('/(&page=[0-9]*)/','',$_SERVER['QUERY_STRING']);
$stripped = str_replace('q=','',$stripped);
$stripped = trim($stripped,'/');
$url = $a->get_baseurl() . '/' . $stripped;
return $o;
}}
+// Turn user/group ACLs stored as angle bracketed text into arrays
+
if(! function_exists('expand_acl')) {
function expand_acl($s) {
+ // turn string array of angle-bracketed elements into numeric array
+ // e.g. "<1><2><3>" => array(1,2,3);
+ $ret = array();
if(strlen($s)) {
- $a = explode('<',$s);
- for($x = 0; $x < count($a); $x ++) {
- $a[$x] = intval(str_replace(array('<','>'),array('',''),$a[$x]));
+ $t = str_replace('<','',$s);
+ $a = explode('>',$t);
+ foreach($a as $aa) {
+ if(intval($aa))
+ $ret[] = intval($aa);
}
- return $a;
}
- return array();
+ return $ret;
}}
+// Used to wrap ACL elements in angle brackets for storage
+
if(! function_exists('sanitise_acl')) {
function sanitise_acl(&$item) {
if(intval($item))
else
unset($item);
}}
+
+// retrieve a "family" of config variables from database to cached storage
+
+if(! function_exists('load_config')) {
+function load_config($family) {
+ global $a;
+ $r = q("SELECT * FROM `config` WHERE `cat` = '%s'",
+ dbesc($family)
+ );
+ if(count($r)) {
+ foreach($r as $rr) {
+ $k = $rr['k'];
+ $a->config[$family][$k] = $rr['v'];
+ }
+ }
+}}
+
+// get a particular config variable given the family name
+// and key. Returns false if not set.
+// $instore is only used by the set_config function
+// to determine if the key already exists in the DB
+// If a key is found in the DB but doesn't exist in
+// local config cache, pull it into the cache so we don't have
+// to hit the DB again for this item.
+
+if(! function_exists('get_config')) {
+function get_config($family, $key, $instore = false) {
+
+ global $a;
+
+ if(! $instore) {
+ if(isset($a->config[$family][$key])) {
+ if($a->config[$family][$key] === '!<unset>!') {
+ return false;
+ }
+ return $a->config[$family][$key];
+ }
+ }
+ $ret = q("SELECT `v` FROM `config` WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
+ dbesc($family),
+ dbesc($key)
+ );
+ if(count($ret)) {
+ $a->config[$family][$key] = $ret[0]['v'];
+ return $ret[0]['v'];
+ }
+ else {
+ $a->config[$family][$key] = '!<unset>!';
+ }
+ return false;
+}}
+
+// Store a config value ($value) in the category ($family)
+// under the key ($key)
+// Return the value, or false if the database update failed
+
+if(! function_exists('set_config')) {
+function set_config($family,$key,$value) {
+
+ global $a;
+ $a->config[$family][$key] = $value;
+
+ if(get_config($family,$key,true) === false) {
+ $ret = q("INSERT INTO `config` ( `cat`, `k`, `v` ) VALUES ( '%s', '%s', '%s' ) ",
+ dbesc($family),
+ dbesc($key),
+ dbesc($value)
+ );
+ if($ret)
+ return $value;
+ return $ret;
+ }
+ $ret = q("UPDATE `config` SET `v` = '%s' WHERE `cat` = '%s' AND `k` = '%s' LIMIT 1",
+ dbesc($value),
+ dbesc($family),
+ dbesc($key)
+ );
+ if($ret)
+ return $value;
+ return $ret;
+}}
+
+// convert an XML document to a normalised, case-corrected array
+// used by webfinger
+
+if(! function_exists('convert_xml_element_to_array')) {
+function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
+
+ // If we're getting too deep, bail out
+ if ($recursion_depth > 512) {
+ return(null);
+ }
+
+ if (!is_string($xml_element) &&
+ !is_array($xml_element) &&
+ (get_class($xml_element) == 'SimpleXMLElement')) {
+ $xml_element_copy = $xml_element;
+ $xml_element = get_object_vars($xml_element);
+ }
+
+ if (is_array($xml_element)) {
+ $result_array = array();
+ if (count($xml_element) <= 0) {
+ return (trim(strval($xml_element_copy)));
+ }
+
+ foreach($xml_element as $key=>$value) {
+
+ $recursion_depth++;
+ $result_array[strtolower($key)] =
+ convert_xml_element_to_array($value, $recursion_depth);
+ $recursion_depth--;
+ }
+ if ($recursion_depth == 0) {
+ $temp_array = $result_array;
+ $result_array = array(
+ strtolower($xml_element_copy->getName()) => $temp_array,
+ );
+ }
+
+ return ($result_array);
+
+ } else {
+ return (trim(strval($xml_element)));
+ }
+}}
+
+// Given an email style address, perform webfinger lookup and
+// return the resulting DFRN profile URL, or if no DFRN profile URL
+// is located, returns an OStatus subscription template (prefixed
+// with the string 'stat:' to identify it as on OStatus template).
+// If this isn't an email style address just return $s.
+// Return an empty string if email-style addresses but webfinger fails,
+// or if the resultant personal XRD doesn't contain a supported
+// subscription/friend-request attribute.
+
+if(! function_exists('webfinger_dfrn')) {
+function webfinger_dfrn($s) {
+ if(! strstr($s,'@')) {
+ return $s;
+ }
+ $links = webfinger($s);
+ logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
+ if(count($links)) {
+ foreach($links as $link)
+ if($link['@attributes']['rel'] === NAMESPACE_DFRN)
+ return $link['@attributes']['href'];
+ foreach($links as $link)
+ if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
+ return 'stat:' . $link['@attributes']['template'];
+ }
+ return '';
+}}
+
+// Given an email style address, perform webfinger lookup and
+// return the array of link attributes from the personal XRD file.
+// On error/failure return an empty array.
+
+
+if(! function_exists('webfinger')) {
+function webfinger($s) {
+ $host = '';
+ if(strstr($s,'@')) {
+ $host = substr($s,strpos($s,'@') + 1);
+ }
+ if(strlen($host)) {
+ $tpl = fetch_lrdd_template($host);
+ logger('webfinger: lrdd template: ' . $tpl);
+ if(strlen($tpl)) {
+ $pxrd = str_replace('{uri}', urlencode('acct:'.$s), $tpl);
+ $links = fetch_xrd_links($pxrd);
+ if(! count($links)) {
+ // try with double slashes
+ $pxrd = str_replace('{uri}', urlencode('acct://'.$s), $tpl);
+ $links = fetch_xrd_links($pxrd);
+ }
+ return $links;
+ }
+ }
+ return array();
+}}
+
+if(! function_exists('lrdd')) {
+function lrdd($uri) {
+
+ $a = get_app();
+
+ if(strstr($uri,'@')) {
+ return(webfinger($uri));
+ }
+ else {
+ $html = fetch_url($uri);
+ $headers = $a->get_curl_headers();
+ $lines = explode("\n",$headers);
+ if(count($lines)) {
+ foreach($lines as $line) {
+ // TODO alter the following regex to support multiple relations (space separated)
+ if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
+ $link = $matches[1];
+ break;
+ }
+ }
+ }
+ if(! isset($link)) {
+ // parse the page of the supplied URL looking for rel links
+
+ require_once('library/HTML5/Parser.php');
+ $dom = HTML5_Parser::parse($html);
+
+ if($dom) {
+ $items = $dom->getElementsByTagName('link');
+
+ foreach($items as $item) {
+ $x = $item->getAttribute('rel');
+ if($x == "lrdd") {
+ $link = $item->getAttribute('href');
+ break;
+ }
+ }
+ }
+ }
+
+ if(isset($link))
+ return(fetch_xrd_links($link));
+ }
+ return array();
+}}
+
+
+
+// Given a host name, locate the LRDD template from that
+// host. Returns the LRDD template or an empty string on
+// error/failure.
+
+if(! function_exists('fetch_lrdd_template')) {
+function fetch_lrdd_template($host) {
+ $tpl = '';
+ $url = 'http://' . $host . '/.well-known/host-meta' ;
+ $links = fetch_xrd_links($url);
+ if(count($links)) {
+ foreach($links as $link)
+ if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
+ $tpl = $link['@attributes']['template'];
+ }
+ if(! strpos($tpl,'{uri}'))
+ $tpl = '';
+ return $tpl;
+}}
+
+// Given a URL, retrieve the page as an XRD document.
+// Return an array of links.
+// on error/failure return empty array.
+
+if(! function_exists('fetch_xrd_links')) {
+function fetch_xrd_links($url) {
+
+
+ $xml = fetch_url($url);
+ if (! $xml)
+ return array();
+
+ logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
+ $h = simplexml_load_string($xml);
+ $arr = convert_xml_element_to_array($h);
+
+ if(isset($arr['xrd']['link'])) {
+ $link = $arr['xrd']['link'];
+ if(! isset($link[0]))
+ $links = array($link);
+ else
+ $links = $link;
+ return $links;
+ }
+ return array();
+}}
+
+// Convert an ACL array to a storable string
+
+if(! function_exists('perms2str')) {
+function perms2str($p) {
+ $ret = '';
+ $tmp = $p;
+ if(is_array($tmp)) {
+ array_walk($tmp,'sanitise_acl');
+ $ret = implode('',$tmp);
+ }
+ return $ret;
+}}
+
+// generate a guaranteed unique (for this domain) item ID for ATOM
+// safe from birthday paradox
+
+if(! function_exists('item_new_uri')) {
+function item_new_uri($hostname,$uid) {
+
+ do {
+ $dups = false;
+ $hash = random_string();
+
+ $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
+
+ $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
+ dbesc($uri));
+ if(count($r))
+ $dups = true;
+ } while($dups == true);
+ return $uri;
+}}
+
+// Generate a guaranteed unique photo ID.
+// safe from birthday paradox
+
+if(! function_exists('photo_new_resource')) {
+function photo_new_resource() {
+
+ do {
+ $found = false;
+ $resource = hash('md5',uniqid(mt_rand(),true));
+ $r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
+ dbesc($resource)
+ );
+ if(count($r))
+ $found = true;
+ } while($found == true);
+ return $resource;
+}}
+
+
+// Take a URL from the wild, prepend http:// if necessary
+// and check DNS to see if it's real
+// return true if it's OK, false if something is wrong with it
+
+if(! function_exists('validate_url')) {
+function validate_url(&$url) {
+ if(substr($url,0,4) != 'http')
+ $url = 'http://' . $url;
+ $h = parse_url($url);
+
+ if(($h) && (checkdnsrr($h['host'], 'ANY'))) {
+ return true;
+ }
+ return false;
+}}
+
+// checks that email is an actual resolvable internet address
+
+if(! function_exists('validate_email')) {
+function validate_email($addr) {
+
+ if(! strpos($addr,'@'))
+ return false;
+ $h = substr($addr,strpos($addr,'@') + 1);
+
+ if(($h) && (checkdnsrr($h, 'ANY'))) {
+ return true;
+ }
+ return false;
+}}
+
+// Check $url against our list of allowed sites,
+// wildcards allowed. If allowed_sites is unset return true;
+// If url is allowed, return true.
+// otherwise, return false
+
+if(! function_exists('allowed_url')) {
+function allowed_url($url) {
+
+ $h = parse_url($url);
+
+ if(! $h) {
+ return false;
+ }
+
+ $str_allowed = get_config('system','allowed_sites');
+ if(! $str_allowed)
+ return true;
+
+ $found = false;
+
+ $host = strtolower($h['host']);
+
+ // always allow our own site
+
+ if($host == strtolower($_SERVER['SERVER_NAME']))
+ return true;
+
+ $fnmatch = function_exists('fnmatch');
+ $allowed = explode(',',$str_allowed);
+
+ if(count($allowed)) {
+ foreach($allowed as $a) {
+ $pat = strtolower(trim($a));
+ if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
+ $found = true;
+ break;
+ }
+ }
+ }
+ return $found;
+}}
+
+// check if email address is allowed to register here.
+// Compare against our list (wildcards allowed).
+// Returns false if not allowed, true if allowed or if
+// allowed list is not configured.
+
+if(! function_exists('allowed_email')) {
+function allowed_email($email) {
+
+
+ $domain = strtolower(substr($email,strpos($email,'@') + 1));
+ if(! $domain)
+ return false;
+
+ $str_allowed = get_config('system','allowed_email');
+ if(! $str_allowed)
+ return true;
+
+ $found = false;
+
+ $fnmatch = function_exists('fnmatch');
+ $allowed = explode(',',$str_allowed);
+
+ if(count($allowed)) {
+ foreach($allowed as $a) {
+ $pat = strtolower(trim($a));
+ if(($fnmatch && fnmatch($pat,$host)) || ($pat == $host)) {
+ $found = true;
+ break;
+ }
+ }
+ }
+ return $found;
+}}
+
+// Format the like/dislike text for a profile item
+// $cnt = number of people who like/dislike the item
+// $arr = array of pre-linked names of likers/dislikers
+// $type = one of 'like, 'dislike'
+// $id = item id
+// returns formatted text
+
+if(! function_exists('format_like')) {
+function format_like($cnt,$arr,$type,$id) {
+ $o = '';
+ if($cnt == 1)
+ $o .= $arr[0] . (($type === 'like') ? t(' likes this.') : t(' doesn\'t like this.')) . EOL ;
+ else {
+ $o .= '<span class="fakelink" onclick="openClose(\'' . $type . 'list-' . $id . '\');" >'
+ . $cnt . ' ' . t('people') . '</span> ' . (($type === 'like') ? t('like this.') : t('don\'t like this.')) . EOL ;
+ $total = count($arr);
+ if($total >= MAX_LIKERS)
+ $arr = array_slice($arr, 0, MAX_LIKERS - 1);
+ if($total < MAX_LIKERS)
+ $arr[count($arr)-1] = t('and') . ' ' . $arr[count($arr)-1];
+ $str = implode(', ', $arr);
+ if($total >= MAX_LIKERS)
+ $str .= t(', and ') . $total - MAX_LIKERS . t(' other people');
+ $str .= (($type === 'like') ? t(' like this.') : t(' don\'t like this.'));
+ $o .= "\t" . '<div id="' . $type . 'list-' . $id . '" style="display: none;" >' . $str . '</div>';
+ }
+ return $o;
+}}
+
+
+// wrapper to load a view template, checking for alternate
+// languages before falling back to the default
+
+if(! function_exists('load_view_file')) {
+function load_view_file($s) {
+ $b = basename($s);
+ $d = dirname($s);
+ $lang = get_config('system','language');
+ if($lang === false)
+ $lang = 'en';
+ if(file_exists("$d/$lang/$b"))
+ return file_get_contents("$d/$lang/$b");
+ return file_get_contents($s);
+}}
+
+// for html,xml parsing - let's say you've got
+// an attribute foobar="class1 class2 class3"
+// and you want to find out if it contains 'class3'.
+// you can't use a normal sub string search because you
+// might match 'notclass3' and a regex to do the job is
+// possible but a bit complicated.
+// pass the attribute string as $attr and the attribute you
+// are looking for as $s - returns true if found, otherwise false
+
+if(! function_exists('attribute_contains')) {
+function attribute_contains($attr,$s) {
+ $a = explode(' ', $attr);
+ if(count($a) && in_array($s,$a))
+ return true;
+ return false;
+}}
+
+if(! function_exists('logger')) {
+function logger($msg,$level = 0) {
+
+ $debugging = get_config('system','debugging');
+ $loglevel = intval(get_config('system','loglevel'));
+ $logfile = get_config('system','logfile');
+
+ if((! $debugging) || (! $logfile) || ($level > $loglevel))
+ return;
+
+ @file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
+ return;
+}}
+
+
+if(! function_exists('activity_match')) {
+function activity_match($haystack,$needle) {
+ if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
+ return true;
+ return false;
+}}
+
+
+// Pull out all #hashtags and @person tags from $s;
+// We also get @person@domain.com - which would make
+// the regex quite complicated as tags can also
+// end a sentence. So we'll run through our results
+// and strip the period from any tags which end with one.
+// Returns array of tags found, or empty array.
+
+
+if(! function_exists('get_tags')) {
+function get_tags($s) {
+ $ret = array();
+ if(preg_match_all('/([@#][^ ,:?]*)([ ,:?]|$)/',$s,$match)) {
+ foreach($match[1] as $match) {
+ if(substr($match,-1,1) === '.')
+ $ret[] = substr($match,0,-1);
+ else
+ $ret[] = $match;
+ }
+ }
+
+ return $ret;
+}}
+
+
+// quick and dirty quoted_printable encoding
+
+if(! function_exists('qp')) {
+function qp($s) {
+return str_replace ("%","=",rawurlencode($s));
+}}
+
+
+if(! function_exists('like_puller')) {
+function like_puller($a,$item,&$arr,$mode) {
+
+ $url = '';
+ $sparkle = '';
+ $verb = (($mode === 'like') ? ACTIVITY_LIKE : ACTIVITY_DISLIKE);
+
+ if((activity_match($item['verb'],$verb)) && ($item['id'] != $item['parent'])) {
+ $url = $item['author-link'];
+ if(($item['network'] === 'dfrn') && (! $item['self']) && ($item['author-link'] == $item['url'])) {
+ $url = $a->get_baseurl() . '/redir/' . $item['contact-id'];
+ $sparkle = ' class="sparkle" ';
+ }
+ if(! ((isset($arr[$item['parent'] . '-l'])) && (is_array($arr[$item['parent'] . '-l']))))
+ $arr[$item['parent'] . '-l'] = array();
+ if(! isset($arr[$item['parent']]))
+ $arr[$item['parent']] = 1;
+ else
+ $arr[$item['parent']] ++;
+ $arr[$item['parent'] . '-l'][] = '<a href="'. $url . '"'. $sparkle .'>' . $item['author-name'] . '</a>';
+ }
+ return;
+}}
+
+if(! function_exists('get_mentions')) {
+function get_mentions($item) {
+ $o = '';
+ if(! strlen($item['tag']))
+ return $o;
+
+ $arr = explode(',',$item['tag']);
+ foreach($arr as $x) {
+ $matches = null;
+ if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches))
+ $o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
+ }
+ return $o;
+}}
+
+if(! function_exists('contact_block')) {
+function contact_block() {
+ $o = '';
+ $a = get_app();
+ if((! is_array($a->profile)) || ($a->profile['hide-friends']))
+ return $o;
+ $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
+ intval($a->profile['uid'])
+ );
+ if(count($r)) {
+ $total = intval($r[0]['total']);
+ }
+ if(! $total) {
+ $o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
+ return $o;
+ }
+ $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT 24",
+ intval($a->profile['uid'])
+ );
+ if(count($r)) {
+ $o .= '<h4 class="contact-h4">' . $total . ' ' . t('Contacts') . '</h4><div id="contact-block">';
+ foreach($r as $rr) {
+ $redirect_url = $a->get_baseurl() . '/redir/' . $rr['id'];
+ if(local_user() && ($rr['uid'] == local_user())
+ && ($rr['network'] === 'dfrn')) {
+ $url = $redirect_url;
+ $sparkle = ' sparkle';
+ }
+ else {
+ $url = $rr['url'];
+ $sparkle = '';
+ }
+
+ $o .= '<div class="contact-block-div"><a class="contact-block-link' . $sparkle . '" href="' . $url . '" ><img class="contact-block-img' . $sparkle . '" src="' . $rr['micro'] . '" title="' . $rr['name'] . ' [' . $rr['url'] . ']" alt="' . $rr['name'] . '" /></a></div>' . "\r\n";
+ }
+ $o .= '</div><div id="contact-block-end"></div>';
+ $o .= '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
+
+ }
+ return $o;
+
+}}
+
+if(! function_exists('search')) {
+function search($s) {
+ $a = get_app();
+ $o = '<div id="search-box">';
+ $o .= '<form action="' . $a->get_baseurl() . '/search' . '" method="get" >';
+ $o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
+ $o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />';
+ $o .= '</form></div>';
+ return $o;
+}}
+
+if(! function_exists('valid_email')) {
+function valid_email($x){
+ if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
+ return true;
+ return false;
+}}
+
+
+if(! function_exists('gravatar_img')) {
+function gravatar_img($email) {
+ $size = 175;
+ $opt = 'identicon'; // psuedo-random geometric pattern if not found
+ $rating = 'pg';
+ $hash = md5(trim(strtolower($email)));
+
+ $url = 'http://www.gravatar.com/avatar/' . $hash . '.jpg'
+ . '?s=' . $size . '&d=' . $opt . '&r=' . $rating;
+
+ logger('gravatar: ' . $email . ' ' . $url);
+ return $url;
+}}
+
projects / friendica.git / blobdiff