Merge remote-tracking branch 'upstream/master'

1 files changed, 2 insertions, 290 deletions

diff --git a/mod/zfinger.php b/mod/zfinger.php
index 54ea52bc9..fb3333280 100644
--- a/mod/zfinger.php
+++ b/mod/zfinger.php
@@ -5,297 +5,9 @@ function zfinger_init(&$a) {
 	require_once('include/zot.php');
 	require_once('include/crypto.php');
 
-	$ret = array('success' => false);
 
-	$zhash     = ((x($_REQUEST,'guid_hash'))  ? $_REQUEST['guid_hash']   : '');
-	$zguid     = ((x($_REQUEST,'guid'))       ? $_REQUEST['guid']        : '');
-	$zguid_sig = ((x($_REQUEST,'guid_sig'))   ? $_REQUEST['guid_sig']    : '');
-	$zaddr     = ((x($_REQUEST,'address'))    ? $_REQUEST['address']     : '');
-	$ztarget   = ((x($_REQUEST,'target'))     ? $_REQUEST['target']      : '');
-	$zsig      = ((x($_REQUEST,'target_sig')) ? $_REQUEST['target_sig']  : '');
-	$zkey      = ((x($_REQUEST,'key'))        ? $_REQUEST['key']         : '');
-	$mindate   = ((x($_REQUEST,'mindate'))    ? $_REQUEST['mindate']     : '');
-	$feed      = ((x($_REQUEST,'feed'))       ? intval($_REQUEST['feed']) : 0);
+	$x = zotinfo($_REQUEST);
+	json_return_and_die($x);
 
-	if($ztarget) {
-		if((! $zkey) || (! $zsig) || (! rsa_verify($ztarget,base64url_decode($zsig),$zkey))) {
-			logger('zfinger: invalid target signature');
-			$ret['message'] = t("invalid target signature");
-			json_return_and_die($ret);
-		}
-	}
-
-	// allow re-written domains so bob@foo.example.com can provide an address of bob@example.com
-	// The top-level domain also needs to redirect .well-known/zot-info to the sub-domain with a 301 or 308
-
-	// TODO: Make 308 work in include/network.php for zot_fetch_url and zot_post_url
-
-	if(($zaddr) && ($s = get_config('system','zotinfo_domainrewrite'))) {
-		$arr = explode('^',$s);
-		if(count($arr) == 2) 
-			$zaddr = str_replace($arr[0],$arr[1],$zaddr);
-	}
-
-	$r = null;
-
-	if(strlen($zhash)) {
-		$r = q("select channel.*, xchan.* from channel left join xchan on channel_hash = xchan_hash 
-			where channel_hash = '%s' limit 1",
-			dbesc($zhash)
-		);
-	}
-	elseif(strlen($zguid) && strlen($zguid_sig)) {
-		$r = q("select channel.*, xchan.* from channel left join xchan on channel_hash = xchan_hash 
-			where channel_guid = '%s' and channel_guid_sig = '%s' limit 1",
-			dbesc($zguid),
-			dbesc($zguid_sig)
-		);
-	}
-	elseif(strlen($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_system = 1 order by channel_id limit 1");
-			if(! $r) {
-				$r = q("select channel.*, xchan.* from channel left join xchan on channel_hash = xchan_hash
-					where channel_removed = 0 order by channel_id limit 1");
-			}
-		} 
-	}
-	else {
-		$ret['message'] = 'Invalid request';
-		json_return_and_die($ret);
-	}
-
-	if(! $r) {
-		$ret['message'] = 'Item not found.';
-		json_return_and_die($ret);
-	}
-
-	$e = $r[0];
-
-	$id = $e['channel_id'];
-
-	$sys_channel     = (intval($e['channel_system'])   ? true : false);
-	$special_channel = (($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);
-	$deleted         = (intval($e['xchan_deleted']) ? true : false);
-
-	if($deleted || $censored || $sys_channel)
-		$searchable = false;
-	 
-	$public_forum = false;
-
-	$role = get_pconfig($e['channel_id'],'system','permissions_role');
-	if($role === 'forum' || $role === 'repository') {
-		$public_forum = true;
-	}
-	else {
-		// check if it has characteristics of a public forum based on custom permissions.
-		$t = q("select abook_my_perms from abook where abook_channel = %d and abook_self = 1 limit 1",
-			intval($e['channel_id'])
-		);
-		if(($t) && (($t[0]['abook_my_perms'] & PERMS_W_TAGWALL) && (! ($t[0]['abook_my_perms'] & PERMS_W_STREAM))))
-			$public_forum = true;
-	}
-
-
-	//  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'])
-	);
-
-	$profile = array();
-
-	if($p) {
-
-		if(! intval($p[0]['publish']))
-			$searchable = false; 
-
-		$profile['description']   = $p[0]['pdesc'];
-		$profile['birthday']      = $p[0]['dob'];
-		if(($profile['birthday'] != '0000-00-00') && (($bd = z_birthday($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'];
-		$profile['locale']        = $p[0]['locality'];
-		$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," \t\n\r\0\x0B,")) {
-						$tags[] = trim($kk," \t\n\r\0\x0B,");
-					}
-				}
-			}
-			if($tags)
-				$profile['keywords'] = $tags;
-		}
-	}
-
-	$ret['success'] = true;
-
-	// Communication details
-
-	$ret['guid']           = $e['xchan_guid'];
-	$ret['guid_sig']       = $e['xchan_guid_sig'];
-	$ret['key']            = $e['xchan_pubkey'];
-	$ret['name']           = $e['xchan_name'];
-	$ret['name_updated']   = $e['xchan_name_date'];
-	$ret['address']        = $e['xchan_addr'];
-	$ret['photo_mimetype'] = $e['xchan_photo_mimetype'];
-	$ret['photo']          = $e['xchan_photo_l'];
-	$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['target']         = $ztarget;
-	$ret['target_sig']     = $zsig;
-	$ret['searchable']     = $searchable;
-	$ret['adult_content']  = $adult_channel;
-	$ret['public_forum']   = $public_forum;
-	if($deleted)
-		$ret['deleted']        = $deleted;	
-
-	// premium or other channel desiring some contact with potential followers before connecting.
-	// This is a template - %s will be replaced with the follow_url we discover for the return channel.
-
-	if($special_channel) 
-		$ret['connect_url'] = z_root() . '/connect/' . $e['channel_address'];
-
-	// This is a template for our follow url, %s will be replaced with a webbie
-
-	$ret['follow_url'] = z_root() . '/follow?f=&url=%s';
-
-	$ztarget_hash = (($ztarget && $zsig) 
-			? make_xchan_hash($ztarget,$zsig)
-			: '' ); 
-
-	$permissions = get_all_perms($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 && $zkey) ? crypto_encapsulate(json_encode($permissions),$zkey) : $permissions);
-
-	if($permissions['view_profile'])
-		$ret['profile']  = $profile;
-
-	// array of (verified) hubs this channel uses
-
-	$x = zot_encode_locations($e);
-	if($x)
-		$ret['locations'] = $x;
-
-	$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))
-		$ret['site']['directory_mode'] = 'normal';
-
-	if($dirmode == DIRECTORY_MODE_PRIMARY)
-		$ret['site']['directory_mode'] = 'primary';
-	elseif($dirmode == DIRECTORY_MODE_SECONDARY)
-		$ret['site']['directory_mode'] = 'secondary';
-	elseif($dirmode == DIRECTORY_MODE_STANDALONE)
-		$ret['site']['directory_mode'] = 'standalone';
-	if($dirmode != DIRECTORY_MODE_NORMAL)
-		$ret['site']['directory_url'] = z_root() . '/dirsearch';
-
-
-	// hide detailed site information if you're off the grid
-
-	if($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';
-
-		$ret['site']['accounts'] = account_total();
-	
-		require_once('include/identity.php');
-		$ret['site']['channels'] = channel_total();
-
-
-		$ret['site']['version'] = PLATFORM_NAME . ' ' . 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');
-		$ret['site']['realm'] = get_directory_realm();
-
-	}
-	call_hooks('zot_finger',$ret);
-	json_return_and_die($ret);
 
 }