Merge remote-tracking branch 'upstream/master'

1 files changed, 146 insertions, 29 deletions

diff --git a/mod/zfinger.php b/mod/zfinger.php
index 3452db68c..d79025885 100644
--- a/mod/zfinger.php
+++ b/mod/zfinger.php
@@ -52,10 +52,38 @@ function zfinger_init(&$a) {
 		);
 	}
 	elseif(strlen($zaddr)) {
-		$r = q("select channel.*, xchan.* from channel left join xchan on channel_hash = xchan_hash
-			where channel_address = '%s' limit 1",
-			dbesc($zaddr)
-		);
+		if(strpos($zaddr,'[system]') === false) {       /* normal address lookup */
+			$r = q("select channel.*, xchan.* from channel left join xchan on channel_hash = xchan_hash
+				where ( channel_address = '%s' or xchan_addr = '%s' ) limit 1",
+				dbesc($zaddr),
+				dbesc($zaddr)
+			);
+		}
+
+		else {
+
+			/**
+			 * The special address '[system]' will return a system channel if one has been defined,
+			 * Or the first valid channel we find if there are no system channels. 
+			 *
+			 * This is used by magic-auth if we have no prior communications with this site - and
+			 * returns an identity on this site which we can use to create a valid hub record so that
+			 * we can exchange signed messages. The precise identity is irrelevant. It's the hub
+			 * information that we really need at the other end - and this will return it.
+			 *
+			 */
+
+			$r = q("select channel.*, xchan.* from channel left join xchan on channel_hash = xchan_hash
+				where ( channel_pageflags & %d ) order by channel_id limit 1",
+				intval(PAGE_SYSTEM)
+			);
+			if(! $r) {
+				$r = q("select channel.*, xchan.* from channel left join xchan on channel_hash = xchan_hash
+					where not ( channel_pageflags & %d ) order by channel_id limit 1",
+					intval(PAGE_REMOVED)
+				);
+			}
+		} 
 	}
 	else {
 		$ret['message'] = 'Invalid request';
@@ -71,10 +99,15 @@ function zfinger_init(&$a) {
 
 	$id = $e['channel_id'];
 
-	$searchable = (($e['channel_pageflags'] & PAGE_HIDDEN) ? false : true);
+	$special_channel = (($e['channel_pageflags'] & PAGE_PREMIUM)  ? true : false);
+	$adult_channel   = (($e['channel_pageflags'] & PAGE_ADULT)    ? true : false);
+	$censored        = (($e['channel_pageflags'] & PAGE_CENSORED) ? true : false);
+	$searchable      = (($e['channel_pageflags'] & PAGE_HIDDEN)   ? false : true);
+	$deleted         = (($e['xchan_flags'] & XCHAN_FLAGS_DELETED) ? true : false);
 
+	if(($e['xchan_flags'] & XCHAN_FLAGS_HIDDEN) || $deleted || $censored)
+		$searchable = false;
 	 
-
 	//  This is for birthdays and keywords, but must check access permissions
 	$p = q("select * from profile where uid = %d and is_default = 1",
 		intval($e['channel_id'])
@@ -83,10 +116,17 @@ function zfinger_init(&$a) {
 	$profile = array();
 
 	if($p) {
+
+		if(! intval($p[0]['publish']))
+			$searchable = false; 
+
 		$profile['description']   = $p[0]['pdesc'];
 		$profile['birthday']      = $p[0]['dob'];
-		if($profile['birthday'] != '0000-00-00')
-			$profile['next_birthday'] = z_birthday($p[0]['dob'],$e['channel_timezone']);
+		if(($profile['birthday'] != '0000-00-00') && (($bd = z_birthday($p[0]['dob'],$e['channel_timezone'])) !== ''))
+			$profile['next_birthday'] = $bd;
+
+		if($age = age($p[0]['dob'],$e['channel_timezone'],''))  
+			$profile['age'] = $age;
 		$profile['gender']        = $p[0]['gender'];
 		$profile['marital']       = $p[0]['marital'];
 		$profile['sexual']        = $p[0]['sexual'];
@@ -94,13 +134,20 @@ function zfinger_init(&$a) {
 		$profile['region']        = $p[0]['region'];
 		$profile['postcode']      = $p[0]['postal_code'];
 		$profile['country']       = $p[0]['country_name'];
+		$profile['about']         = $p[0]['about'];
+		$profile['homepage']      = $p[0]['homepage'];
+		$profile['hometown']      = $p[0]['hometown'];
+
 		if($p[0]['keywords']) {
 			$tags = array();
 			$k = explode(' ',$p[0]['keywords']);
-			if($k)
-				foreach($k as $kk)
-					if(trim($kk))
-						$tags[] = trim($kk);
+			if($k) {
+				foreach($k as $kk) {
+					if(trim($kk," \t\n\r\0\x0B,")) {
+						$tags[] = trim($kk," \t\n\r\0\x0B,");
+					}
+				}
+			}
 			if($tags)
 				$profile['keywords'] = $tags;
 		}
@@ -121,37 +168,50 @@ function zfinger_init(&$a) {
 	$ret['photo_updated']  = $e['xchan_photo_date'];
 	$ret['url']            = $e['xchan_url'];
 	$ret['connections_url']= (($e['xchan_connurl']) ? $e['xchan_connurl'] : z_root() . '/poco/' . $e['channel_address']);
-	$ret['name_updated']   = $e['xchan_name_date'];
 	$ret['target']         = $ztarget;
 	$ret['target_sig']     = $zsig;
 	$ret['searchable']     = $searchable;
+	$ret['adult_content']  = $adult_channel;
+	if($deleted)
+		$ret['deleted']        = $deleted;	
+
+	// premium or other channel desiring some contact with potential followers before connecting.
+	// This is a template - %s will be replaced with the follow_url we discover for the return channel.
 
-// wtf
-//	if(! $e['xchan_connurl'])
-		
-// FIXME encrypt permissions when targeted so that only the target can view them, requires sending the pubkey and also checking that the target_sig is signed with that pubkey and isn't a forgery. 
+	if($special_channel) 
+		$ret['connect_url'] = z_root() . '/connect/' . $e['channel_address'];
 
-	logger('zot-info: ' . print_r($e,true));
+	// This is a template for our follow url, %s will be replaced with a webbie
 
-	$permissions = get_all_perms($e['channel_id'],(($ztarget && $zsig) 
+	$ret['follow_url'] = z_root() . '/follow?f=&url=%s';
+
+	$ztarget_hash = (($ztarget && $zsig) 
 			? base64url_encode(hash('whirlpool',$ztarget . $zsig,true)) 
-			: '' ),false);
+			: '' ); 
 
+	$permissions = get_all_perms($e['channel_id'],$ztarget_hash,false);
+
+	if($ztarget_hash) {
+		$permissions['connected'] = false;
+		$b = q("select * from abook where abook_xchan = '%s' and abook_channel = %d limit 1",
+			dbesc($ztarget_hash),
+			intval($e['channel_id'])
+		);
+		if($b)
+			$permissions['connected'] = true;
+	}
 
 	$ret['permissions'] = (($ztarget && $zkey) ? aes_encapsulate(json_encode($permissions),$zkey) : $permissions);
 
 	if($permissions['view_profile'])
 		$ret['profile']  = $profile;
 
-//	if($feed && $permissions['view_stream'])
-//		$ret['messages']  = $zot_feed($e['channel_id'],(($ztarget && $zsig) 
-//				? base64url_encode(hash('whirlpool',$ztarget . $zsig,true)) 
-//				: '' ),$mindate);
 
 	// array of (verified) hubs this channel uses
 
 	$ret['locations'] = array();
-	$x = zot_get_hubloc(array($e['channel_hash']));
+
+	$x = zot_get_hublocs($e['channel_hash']);
 	if($x && count($x)) {
 		foreach($x as $hub) {
 			if(! ($hub['hubloc_flags'] & HUBLOC_FLAGS_UNVERIFIED)) {
@@ -162,7 +222,8 @@ function zfinger_init(&$a) {
 					'url'      => $hub['hubloc_url'],
 					'url_sig'  => $hub['hubloc_url_sig'],
 					'callback' => $hub['hubloc_callback'],
-					'sitekey'  => $hub['hubloc_sitekey']
+					'sitekey'  => $hub['hubloc_sitekey'],
+					'deleted'  => (($hub['hubloc_flags'] & HUBLOC_FLAGS_DELETED) ? true : false)
 				);
 			}
 		}
@@ -170,6 +231,8 @@ function zfinger_init(&$a) {
 
 	$ret['site'] = array();
 	$ret['site']['url'] = z_root();
+	$ret['site']['url_sig'] = base64url_encode(rsa_sign(z_root(),$e['channel_prvkey']));
+
 	$dirmode = get_config('system','directory_mode');
 	if(($dirmode === false) || ($dirmode == DIRECTORY_MODE_NORMAL))
 		$ret['site']['directory_mode'] = 'normal';
@@ -180,8 +243,62 @@ function zfinger_init(&$a) {
 	elseif($dirmode == DIRECTORY_MODE_STANDALONE)
 		$ret['site']['directory_mode'] = 'standalone';
 	if($dirmode != DIRECTORY_MODE_NORMAL)
-		$ret['site']['directory_url'] = z_root() . '/dir';
- 
+		$ret['site']['directory_url'] = z_root() . '/dirsearch';
+
+
+	// hide detailed site information if you're off the grid
+
+	if($dirmode != DIRECTORY_MODE_STANDALONE) {
+
+		$register_policy = intval(get_config('system','register_policy'));
+
+
+		if($register_policy == REGISTER_CLOSED)
+			$ret['site']['register_policy'] = 'closed';
+		if($register_policy == REGISTER_APPROVE)
+			$ret['site']['register_policy'] = 'approve';
+		if($register_policy == REGISTER_OPEN)
+			$ret['site']['register_policy'] = 'open';
+
+
+		$access_policy = intval(get_config('system','access_policy'));
+
+		if($access_policy == ACCESS_PRIVATE)
+			$ret['site']['access_policy'] = 'private';
+		if($access_policy == ACCESS_PAID)
+			$ret['site']['access_policy'] = 'paid';
+		if($access_policy == ACCESS_FREE)
+			$ret['site']['access_policy'] = 'free';
+		if($access_policy == ACCESS_TIERED)
+			$ret['site']['access_policy'] = 'tiered';
+
+		require_once('include/account.php');
+		$ret['site']['accounts'] = account_total();
+	
+		require_once('include/identity.php');
+		$ret['site']['channels'] = channel_total();
+
+
+		$ret['site']['version'] = RED_PLATFORM . ' ' . RED_VERSION . '[' . DB_UPDATE_VERSION . ']';
+
+		$ret['site']['admin'] = get_config('system','admin_email');
+
+		$visible_plugins = array();
+		if(is_array($a->plugins) && count($a->plugins)) {
+			$r = q("select * from addon where hidden = 0");
+			if($r)
+				foreach($r as $rr)
+					$visible_plugins[] = $rr['name'];
+		}
+
+		$ret['site']['plugins'] = $visible_plugins;
+		$ret['site']['sitehash'] = get_config('system','location_hash');
+		$ret['site']['sitename'] = get_config('system','sitename');
+		$ret['site']['sellpage'] = get_config('system','sellpage');
+		$ret['site']['location'] = get_config('system','site_location');
+
+	}
+	call_hooks('zot_finger',$ret);
 	json_return_and_die($ret);
 
-}
\ No newline at end of file
+}