Merge remote-tracking branch 'friendika/master' into newacl

4 files changed, 249 insertions, 20 deletions

diff --git a/include/Scrape.php b/include/Scrape.php
index fbfec176f..6726d0b15 100644
--- a/include/Scrape.php
+++ b/include/Scrape.php
@@ -300,6 +300,8 @@ function probe_url($url) {
 		if(count($links)) {
 			logger('probe_url: found lrdd links: ' . print_r($links,true), LOGGER_DATA);
 			foreach($links as $link) {
+				if($link['@attributes']['rel'] === NAMESPACE_ZOT)
+					$zot = unamp($link['@attributes']['href']);
 				if($link['@attributes']['rel'] === NAMESPACE_DFRN)
 					$dfrn = unamp($link['@attributes']['href']);
 				if($link['@attributes']['rel'] === 'salmon')
@@ -379,6 +381,25 @@ function probe_url($url) {
 		}
 	}	
 
+	if(strlen($zot)) {
+		$s = fetch_url($zot);
+		if($s) {
+			$j = json_decode($s);
+			if($j) {
+				$network = NETWORK_ZOT;
+				$vcard   = array(
+					'fn'    => $j->fullname, 
+					'nick'  => $j->nickname, 
+					'photo' => $j->photo
+				);
+				$profile  = $j->url;
+				$notify   = $j->post;
+				$pubkey   = $j->pubkey;
+				$poll     = 'N/A';
+			}
+		}
+	}
+
 	if(strlen($dfrn)) {
 		$ret = scrape_dfrn($dfrn);
 		if(is_array($ret) && x($ret,'dfrn-request')) {
@@ -390,7 +411,7 @@ function probe_url($url) {
 		}
 	}
 
-	if($network !== NETWORK_DFRN && $network !== NETWORK_MAIL) {
+	if($network !== NETWORK_ZOT && $network !== NETWORK_DFRN && $network !== NETWORK_MAIL) {
 		$network  = NETWORK_OSTATUS;
 		$priority = 0;
 
@@ -549,6 +570,7 @@ function probe_url($url) {
 	$result['priority'] = $priority;
 	$result['network'] = $network;
 	$result['alias'] = $alias;
+	$result['pubkey'] = $pubkey;
 
 	logger('probe_url: ' . print_r($result,true), LOGGER_DEBUG);
 
diff --git a/include/bbcode.php b/include/bbcode.php
index 7fc1eac1c..3619015ca 100644
--- a/include/bbcode.php
+++ b/include/bbcode.php
@@ -3,6 +3,13 @@
 require_once("include/oembed.php");
 require_once('include/event.php');
 
+
+
+function stripcode_br_cb($s) {
+	return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
+}
+
+
 	// BBcode 2 HTML was written by WAY2WEB.net
 	// extended to work with Mistpark/Friendika - Mike Macgirvin
 
@@ -89,9 +96,16 @@ function bbcode($Text,$preserve_nl = false) {
 	$Text = preg_replace("(\[font=(.*?)\](.*?)\[\/font\])","<span style=\"font-family: $1;\">$2</span>",$Text);
 
 	// Declare the format for [code] layout
+
+	$Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/is",'stripcode_br_cb',$Text);
+
 	$CodeLayout = '<code>$1</code>';
 	// Check for [code] text
 	$Text = preg_replace("/\[code\](.*?)\[\/code\]/is","$CodeLayout", $Text);
+
+
+
+
 	// Declare the format for [quote] layout
 	$QuoteLayout = '<blockquote>$1</blockquote>';                     
 	// Check for [quote] text
diff --git a/include/nav.php b/include/nav.php
index 3b15c2b8a..895c321e6 100644
--- a/include/nav.php
+++ b/include/nav.php
@@ -30,7 +30,7 @@ function nav(&$a) {
 	$sitelocation = $myident . substr($a->get_baseurl(),strpos($a->get_baseurl(),'//') + 2 );
 
 
-	// nav links: array of array('href', 'text', 'extra css classes')
+	// nav links: array of array('href', 'text', 'extra css classes', 'title')
 	$nav = Array();
 
 	/**
@@ -38,10 +38,10 @@ function nav(&$a) {
 	 */
 
 	if(local_user()) {
-		$nav['logout'] = Array('logout',t('Logout'), "");
+		$nav['logout'] = Array('logout',t('Logout'), "", t('End this session'));
 	}
 	else {
-		$nav['login'] = Array('login',t('Login'), ($a->module == 'login'?'nav-selected':''));
+		$nav['login'] = Array('login',t('Login'), ($a->module == 'login'?'nav-selected':''), t('Sign in'));
 	}
 
 
@@ -52,21 +52,21 @@ function nav(&$a) {
 	$homelink = ((x($_SESSION,'visitor_home')) ? $_SESSION['visitor_home'] : '');
 
 	if(($a->module != 'home') && (! (local_user()))) 
-		$nav['home'] = array($homelink, t('Home'), "");
+		$nav['home'] = array($homelink, t('Home'), "", t('Home Page'));
 
 
 	if(($a->config['register_policy'] == REGISTER_OPEN) && (! local_user()) && (! remote_user()))
-		$nav['register'] = array('register',t('Register'), "");
+		$nav['register'] = array('register',t('Register'), "", t('Create an account'));
 
 	$help_url = $a->get_baseurl() . '/help';
 
 	if(! get_config('system','hide_help'))
-		$nav['help'] = array($help_url, t('Help'), "");
+		$nav['help'] = array($help_url, t('Help'), "", t('Help and documentation'));
 
 	if($a->apps)
-		$nav['apps'] = array('apps', t('Apps'), "");
+		$nav['apps'] = array('apps', t('Apps'), "", t('Addon applications, utilities, games'));
 
-	$nav['search'] = array('search', t('Search'), "");
+	$nav['search'] = array('search', t('Search'), "", t('Search site content'));
 
 	$gdirpath = 'directory';
 
@@ -76,9 +76,9 @@ function nav(&$a) {
 			$gdirpath = $gdir;
 	}
 	elseif(! get_config('system','no_community_page'))
-		$nav['community'] = array('community', t('Community'), "");
+		$nav['community'] = array('community', t('Community'), "", t('Conversations on this site'));
 
-	$nav['directory'] = array($gdirpath, t('Directory'), ""); 
+	$nav['directory'] = array($gdirpath, t('Directory'), "", t('People directory')); 
 
 	/**
 	 *
@@ -88,33 +88,33 @@ function nav(&$a) {
 
 	if(local_user()) {
 
-		$nav['network'] = array('network', t('Network'), "");
+		$nav['network'] = array('network', t('Network'), "", t('Conversations from your friends'));
 
-		$nav['home'] = array('profile/' . $a->user['nickname'], t('Home'), "");
+		$nav['home'] = array('profile/' . $a->user['nickname'], t('Home'), "", t('Your posts and conversations'));
 
 
 		/* only show friend requests for normal pages. Other page types have automatic friendship. */
 
 		if($_SESSION['page_flags'] == PAGE_NORMAL) {
-			$nav['notifications'] = array('notifications',	t('Notifications'), "");
+			$nav['notifications'] = array('notifications',	t('Notifications'), "", t('Friend requests'));
 		}
 
-		$nav['messages'] = array('message', t('Messages'), "");
+		$nav['messages'] = array('message', t('Messages'), "", t('Private mail'));
 		
 		if(is_array($a->identities) && count($a->identities) > 1) {
-			$nav['manage'] = array('manage', t('Manage'), "");
+			$nav['manage'] = array('manage', t('Manage'), "", t('Manage other pages'));
 		}
 
-		$nav['settings'] = array('settings', t('Settings'),"");
-		$nav['profiles'] = array('profiles', t('Profiles'),"");
-		$nav['contacts'] = array('contacts', t('Contacts'),"");
+		$nav['settings'] = array('settings', t('Settings'),"", t('Account settings'));
+		$nav['profiles'] = array('profiles', t('Profiles'),"", t('Manage/edit profiles'));
+		$nav['contacts'] = array('contacts', t('Contacts'),"", t('Manage/edit friends and contacts'));
 	}
 
 	/**
 	 * Admin page
 	 */
 	 if (is_site_admin()){
-		 $nav['admin'] = array('admin/', t('Admin'), "");
+		 $nav['admin'] = array('admin/', t('Admin'), "", t('Site setup and configuration'));
 	 }
 
 
diff --git a/include/zotfns.php b/include/zotfns.php
new file mode 100644
index 000000000..b695b6fcb
--- /dev/null
+++ b/include/zotfns.php
@@ -0,0 +1,193 @@
+<?php
+
+
+require_once('include/salmon.php');
+
+function zot_get($url,$args) {
+	$argstr = '';
+	foreach($args as $k => $v) {
+		if($argstr)
+			$argstr .= '&';
+		$argstr .= $k . '=' . $v;
+	}	
+	$s = fetch_url($url . '?' . $argstr);
+	if($s) {
+		$j = json_decode($s);
+		if($j)
+			return($j);
+	}
+	return false;
+}
+
+function zot_post($url,$args) {
+	$s = post_url($url,$args);
+	if($s) {
+		$j = json_decode($s);
+		if($j)
+			return($j);
+	}
+	return false;
+}
+
+
+function zot_prv_encode($s,$prvkey) {
+	$x = '';
+	$res = openssl_private_encrypt($s,$x,$prvkey);
+	return base64url_encode($y);
+}
+function zot_pub_encode($s,$pubkey) {
+	$x = '';
+	$res = openssl_public_encrypt($s,$x,$pubkey);
+	return base64url_encode($x);
+}
+
+function zot_prv_decode($s,$prvkey) {
+	$s = base64url_decode($s);
+	$x = '';
+	openssl_private_decrypt($s,$x,$prvkey);
+	return $x;
+}
+
+function zot_pub_decode($s,$pubkey) {
+	$s = base64url_decode($s);
+	$x = '';
+	openssl_public_decrypt($s,$x,$pubkey);
+	return $x;
+}
+
+
+function zot_getzid($url,$myaddress,$myprvkey) {
+	$ret = array();
+	$j = zot_get($url,array('sender' => $myaddress));
+	if($j->zid_encoded)
+		$ret['zid'] = zot_prv_decode($j->zid_encoded,$myprvkey);
+	if($j->zkey_encoded)
+		$ret['zkey'] = zot_prv_decode($j->zkey_encoded,$myprvkey);
+	return $ret;
+}
+
+function zot_post_init($url,$zid,$myprvkey,$theirpubkey) {
+	$ret = array();
+
+	$zinit = random_string(32);
+
+	$j = zot_get($url,array('zid' => $zid,'zinit' => $zinit));
+	
+	$a = get_app();
+	if(! $a->get_curl_code())
+		return ZCURL_TIMEOUT;
+	if(! $j->zinit) {
+		logger('zot_post_init: no zinit returned.');
+		return false;
+	}
+	if(zot_pub_decode($j->zinit,$thierpubkey) !== $zinit) {
+		logger('zot_post_init: incorrect zinit returned.');
+		return false;
+	}
+
+	if($j->challenge) {
+		$s = zot_prv_decode($j->challenge,$myprvkey);
+		$s1 = substr($s,0,strpos($s,'.'));
+		if($s1 != $zid) {
+			logger("zot_post_init: incorrect zid returned");
+			return false;
+		}
+		$ret['result'] = substr($s,strpos($s,'.') + 1);
+		$ret['perms'] = $j->perms;
+	}
+	return $ret;
+}
+
+
+function zot_encrypt_data($data,&$key) {
+	$key = random_string();
+	return aes_encrypt($data,$key);
+}
+
+
+// encrypt the data prior to calling this function so it only need be done once per message
+// regardless of the number of recipients.
+
+function zot_post_data($url,$zid,$myprvkey,$theirpubkey,$encrypted_data,$key, $intro = false) {
+	$i = zot_post_init($url,$zid,$myprvkey,$theirpubkey);
+	if($i === ZCURL_TIMEOUT)
+		return ZCURL_TIMEOUT;
+
+	if((! $i) || (! array_key_exists('perms',$i)) || (! array_key_exists('result',$i)))
+		return false;
+	if((! stristr($i['perms'],'post')) && ($intro === false)) {
+		logger("zot_post_data: no permission to post: url=$url zid=$zid");
+		return false;
+	} 
+	$p = array();
+	$p['zid'] = $zid;
+	$p['result'] = zot_pub_encode($i['result'],$theirpubkey);
+	$p['aes_key'] = zot_prv_encode($key,$myprvkey);
+	$p['data'] = $encrypted_data;
+	$s = zot_post($url,$p);
+	$a = get_app();
+	if(! $a->get_curl_code())
+		return ZCURL_TIMEOUT;
+
+	if($s) {
+		$j = json_decode($s); 
+		return $j;
+	}
+	return false;
+}
+	
+function zot_deliver($recipients,$myprvkey,$data) {
+
+	if(is_array($recipients) && count($recipients)) {
+
+		$key = '';
+		$encrypted = zot_encrypt_data($data,$key);
+
+
+		foreach($recipients as $r) {
+			$result = zot_post_data(
+				$r['post'],
+				$r['zid'],
+				$myprvkey,
+				$r['pubkey'],
+				$encrypted,
+				$key
+			);
+			if($result === false) {
+				// post failed
+				logger('zot_deliver: failed: ' . print_r($r,true));
+			}
+			elseif($result === ZCURL_TIMEOUT) {
+				// queue for redelivery
+			}
+			elseif($result->error) {
+				// failed at other end
+				logger('zot_deliver: remote failure: ' . $result->error . ' ' . print_r($r,true));
+			}
+			elseif($result->success) {
+				logger('zot_deliver: success ' . print_r($r,true, LOGGER_DEBUG));
+			}
+			else
+				logger('zot_deliver: unknown failure.');
+		}
+	}
+}
+
+
+function zot_new_contact($user,$cc) {
+
+	$zid = random_string(32);
+	$zkey = random_string(32);
+
+	logger("zot_new_contact: zid=$zid zkey=$zkey uid={$user['uid']} " . print_r($cc,true));
+
+	$ret = array();
+	$ret['zid_encoded'] = zot_pub_encode($zid,$cc['pubkey']);
+	$ret['zkey_encoded'] = zot_pub_encode($zkey,$cc['pubkey']);
+	return $ret;
+
+
+	
+
+
+}
\ No newline at end of file