From c22da3da1c5d3c5418cb9f142883adb838db9f76 Mon Sep 17 00:00:00 2001
From: redmatrix <redmatrix@redmatrix.me>
Date: Wed, 2 Sep 2015 20:12:40 -0700
Subject: start to modularise the clone import and sync functions

---
 include/AccessList.php |  17 +++
 include/import.php     | 312 +++++++++++++++++++++++++++++++++++++++++++++++++
 include/zot.php        |   6 +
 3 files changed, 335 insertions(+)
 create mode 100644 include/import.php

(limited to 'include')

diff --git a/include/AccessList.php b/include/AccessList.php
index 46e66d33d..43f1de111 100644
--- a/include/AccessList.php
+++ b/include/AccessList.php
@@ -34,6 +34,11 @@ class AccessList {
 		return $this->explicit;
 	}
 
+	/**
+	 * Set AccessList from strings such as those in already
+	 * existing stored data items
+	 */
+
 	function set($arr,$explicit = true) {
 		$this->allow_cid = $arr['allow_cid'];
 		$this->allow_gid = $arr['allow_gid'];
@@ -43,6 +48,12 @@ class AccessList {
 		$this->explicit = $explicit;
 	}
 
+	/**
+	 * return an array consisting of the current
+	 * access list components where the elements
+	 * are directly storable. 
+	 */
+
 	function get() {
 		return array(
 			'allow_cid' => $this->allow_cid,
@@ -52,6 +63,12 @@ class AccessList {
 		);
 	}
 
+	/**
+	 * Set AccessList from arrays, such as those provided by
+	 * acl_selector(). For convenience, a string (or non-array) input is 
+	 * assumed to be a comma-separated list and auto-converted into an array. 
+	 */ 
+
 	function set_from_array($arr,$explicit = true) {
 		$this->allow_cid = perms2str((is_array($arr['contact_allow'])) 
 			? $arr['contact_allow'] : explode(',',$arr['contact_allow']));
diff --git a/include/import.php b/include/import.php
new file mode 100644
index 000000000..cee0d14fd
--- /dev/null
+++ b/include/import.php
@@ -0,0 +1,312 @@
+<?php
+
+
+function import_channel($channel) {
+
+	if(! array_key_exists('channel_system',$channel)) {
+		$channel['channel_system']  = (($channel['channel_pageflags'] & 0x1000) ? 1 : 0);
+		$channel['channel_removed'] = (($channel['channel_pageflags'] & 0x8000) ? 1 : 0);
+	}
+
+	$r = q("select * from channel where (channel_guid = '%s' or channel_hash = '%s' or channel_address = '%s' ) limit 1",
+		dbesc($channel['channel_guid']),
+		dbesc($channel['channel_hash']),
+		dbesc($channel['channel_address'])
+	);
+
+	// We should probably also verify the hash 
+	
+	if($r) {
+		if($r[0]['channel_guid'] === $channel['channel_guid'] || $r[0]['channel_hash'] === $channel['channel_hash']) {
+			logger('mod_import: duplicate channel. ', print_r($channel,true));
+			notice( t('Cannot create a duplicate channel identifier on this system. Import failed.') . EOL);
+			return false;
+		}
+		else {
+			// try at most ten times to generate a unique address.
+			$x = 0;
+			$found_unique = false;
+			do {
+				$tmp = $channel['channel_address'] . mt_rand(1000,9999);
+				$r = q("select * from channel where channel_address = '%s' limit 1",
+					dbesc($tmp)
+				);
+				if(! $r) {
+					$channel['channel_address'] = $tmp;
+					$found_unique = true;
+					break;
+				}
+				$x ++;
+			} while ($x < 10);
+			if(! $found_unique) {
+				logger('mod_import: duplicate channel. randomisation failed.', print_r($channel,true));
+				notice( t('Unable to create a unique channel address. Import failed.') . EOL);
+				return false;
+			}
+		}		
+	}
+
+	unset($channel['channel_id']);
+	$channel['channel_account_id'] = get_account_id();
+	$channel['channel_primary'] = (($seize) ? 1 : 0);
+	
+	dbesc_array($channel);
+
+	$r = dbq("INSERT INTO channel (`" 
+		. implode("`, `", array_keys($channel)) 
+		. "`) VALUES ('" 
+		. implode("', '", array_values($channel)) 
+		. "')" 
+	);
+
+	if(! $r) {
+		logger('mod_import: channel clone failed. ', print_r($channel,true));
+		notice( t('Channel clone failed. Import failed.') . EOL);
+		return false;
+	}
+
+	$r = q("select * from channel where channel_account_id = %d and channel_guid = '%s' limit 1",
+		intval(get_account_id()),
+		$channel['channel_guid']   // Already dbesc'd
+	);
+	if(! $r) {
+		logger('mod_import: channel not found. ', print_r($channel,true));
+		notice( t('Cloned channel not found. Import failed.') . EOL);
+		return false;
+	}
+	// reset
+	$channel = $r[0];
+
+	set_default_login_identity(get_account_id(),$channel['channel_id'],false);
+	logger('import step 1');
+	$_SESSION['import_step'] = 1;
+	ref_session_write(session_id(), serialize($_SESSION));
+	return $channel;	
+
+}
+
+function import_config($channel,$configs) {
+
+	if($channel && $configs) {
+		foreach($configs as $config) {
+			unset($config['id']);
+			$config['uid'] = $channel['channel_id'];
+			dbesc_array($config);
+			$r = dbq("INSERT INTO pconfig (`" 
+				. implode("`, `", array_keys($config)) 
+				. "`) VALUES ('" 
+				. implode("', '", array_values($config)) 
+				. "')" );
+		}
+		load_pconfig($channel['channel_id']);
+	}	
+}
+
+
+function import_profiles($channel,$profiles) {
+
+	if($channel && $profiles) {
+		foreach($profiles as $profile) {
+			unset($profile['id']);
+			$profile['aid'] = get_account_id();
+			$profile['uid'] = $channel['channel_id'];
+
+			// we are going to reset all profile photos to the original
+			// somebody will have to fix this later and put all the applicable photos into the export
+	
+			$profile['photo'] = z_root() . '/photo/profile/l/' . $channel['channel_id'];
+			$profile['thumb'] = z_root() . '/photo/profile/m/' . $channel['channel_id'];
+
+			dbesc_array($profile);
+			$r = dbq("INSERT INTO profile (`" 
+				. implode("`, `", array_keys($profile)) 
+				. "`) VALUES ('" 
+				. implode("', '", array_values($profile)) 
+				. "')" 
+			);
+		}
+	}
+}
+
+
+function import_hublocs($channel,$hublocs,$seize) {
+
+	if($channel && $hublocs) {
+		foreach($hublocs as $hubloc) {
+
+			$hash = make_xchan_hash($hubloc['hubloc_guid'],$hubloc['hubloc_guid_sig']);
+			if($hubloc['hubloc_network'] === 'zot' && $hash !== $hubloc['hubloc_hash']) {
+				logger('forged hubloc: ' . print_r($hubloc,true));
+				continue;
+			}
+
+			if(! array_key_exists('hubloc_primary',$hubloc)) {
+				$hubloc['hubloc_primary'] = (($hubloc['hubloc_flags'] & 0x0001) ? 1 : 0);
+				$hubloc['hubloc_orphancheck'] = (($hubloc['hubloc_flags'] & 0x0004) ? 1 : 0);
+				$hubloc['hubloc_error'] = (($hubloc['hubloc_status'] & 0x0003) ? 1 : 0);
+				$hubloc['hubloc_deleted'] = (($hubloc['hubloc_flags'] & 0x1000) ? 1 : 0);
+			}
+
+			$arr = array(
+				'guid' => $hubloc['hubloc_guid'],
+				'guid_sig' => $hubloc['hubloc_guid_sig'],
+				'url' => $hubloc['hubloc_url'],
+				'url_sig' => $hubloc['hubloc_url_sig']
+			);
+			if(($hubloc['hubloc_hash'] === $channel['channel_hash']) && intval($hubloc['hubloc_primary']) && ($seize))
+				$hubloc['hubloc_primary'] = 0;
+
+			if(! zot_gethub($arr)) {				
+				unset($hubloc['hubloc_id']);
+				dbesc_array($hubloc);
+		
+				$r = dbq("INSERT INTO hubloc (`" 
+					. implode("`, `", array_keys($hubloc)) 
+					. "`) VALUES ('" 
+					. implode("', '", array_values($hubloc)) 
+					. "')" 
+				);
+			}
+		}
+	}
+}
+
+
+
+function import_objs($channel,$objs) {
+
+	if($channel && $objs) {
+		foreach($objs as $obj) {
+
+			// if it's the old term format - too hard to support
+			if(! $obj['obj_created'])
+				continue;
+
+			$baseurl = $obj['obj_baseurl'];
+			unset($obj['obj_id']);
+			unset($obj['obj_baseurl']);
+
+			$obj['obj_channel'] = $channel['channel_id'];
+
+			if($baseurl && (strpos($obj['obj_url'],$baseurl . '/thing/') !== false)) {
+				$obj['obj_url'] = str_replace($baseurl,z_root(),$obj['obj_url']);
+			}
+
+			if($obj['obj_imgurl']) {
+	            $x = import_xchan_photo($obj['obj_imgurl'],$channel['channel_hash'],true);
+				$obj['obj_imgurl'] = $x[0];
+			}
+
+			dbesc_array($obj);
+
+			$r = dbq("INSERT INTO obj (`" 
+				. implode("`, `", array_keys($obj)) 
+				. "`) VALUES ('" 
+				. implode("', '", array_values($obj)) 
+				. "')" 
+			);
+		}
+	}
+}
+
+function sync_objs($channel,$objs) {
+
+	if($channel && $objs) {
+		foreach($objs as $obj) {
+
+			if(array_key_exists('obj_deleted',$obj) && $obj['obj_deleted'] && $obj['obj_obj']) {
+				q("delete from obj where obj_obj = '%s' and obj_channel = %d limit 1",
+					dbesc($obj['obj_obj']),
+					intval($channel['channel_id'])
+				);
+				continue;
+			}
+
+			// if it's the old term format - too hard to support
+			if(! $obj['obj_created'])
+				continue;
+
+			$baseurl = $obj['obj_baseurl'];
+			unset($obj['obj_id']);
+			unset($obj['obj_baseurl']);
+
+			$obj['obj_channel'] = $channel['channel_id'];
+
+			if($baseurl && (strpos($obj['obj_url'],$baseurl . '/thing/') !== false)) {
+				$obj['obj_url'] = str_replace($baseurl,z_root(),$obj['obj_url']);
+			}
+
+			$exists = false;
+
+			$x = q("select * from obj where obj_obj = '%s' and obj_channel = %d limit 1",
+				dbesc($obj['obj_obj']),
+				intval($channel['channel_id'])
+			);
+			if($x) {
+				if($x[0]['obj_edited'] >= $obj['obj_edited'])
+					continue;
+
+				$exists = true;
+			}
+
+			if($obj['obj_imgurl']) {
+	            $x = import_xchan_photo($obj['obj_imgurl'],$channel['channel_hash'],true);
+				$obj['obj_imgurl'] = $x[0];
+			}
+
+			$hash = $obj['obj_obj'];
+			
+			if($exists) {
+				foreach($obj as $k => $v) {
+					$r = q("UPDATE obj SET `%s` = '%s' WHERE obj_obj = '%s' AND obj_channel = %d",
+						dbesc($k),
+						dbesc($v),
+						dbesc($hash),
+						intval($channel['channel_id'])
+					);
+				}
+			}
+			else {						
+
+				dbesc_array($obj);
+
+				$r = dbq("INSERT INTO obj (`" 
+					. implode("`, `", array_keys($obj)) 
+					. "`) VALUES ('" 
+					. implode("', '", array_values($obj)) 
+					. "')" 
+				);
+			}
+		}
+	}
+}
+
+
+
+
+
+function import_apps($channel,$apps) {
+
+	if($channel && $apps) {
+		foreach($apps as $app) {
+
+			unset($app['id']);
+			unset($app['app_channel']);
+
+			$app['app_channel'] = $channel['channel_id'];
+
+			if($app['app_photo']) {
+	            $x = import_xchan_photo($app['app_photo'],$channel['channel_hash'],true);
+				$app['app_photo'] = $x[0];
+			}
+
+			dbesc_array($app);
+			$r = dbq("INSERT INTO app (`" 
+				. implode("`, `", array_keys($app)) 
+				. "`) VALUES ('" 
+				. implode("', '", array_values($app)) 
+				. "')" 
+			);
+		}
+	}
+}
\ No newline at end of file
diff --git a/include/zot.php b/include/zot.php
index 8a8b74860..cb70f38a2 100644
--- a/include/zot.php
+++ b/include/zot.php
@@ -2841,6 +2841,8 @@ function build_sync_packet($uid = 0, $packet = null, $groups_changed = false) {
  */
 function process_channel_sync_delivery($sender, $arr, $deliveries) {
 
+	require_once('include/import.php');
+
 	/** @FIXME this will sync red structures (channel, pconfig and abook). Eventually we need to make this application agnostic. */
 
 	$result = array();
@@ -2873,6 +2875,10 @@ function process_channel_sync_delivery($sender, $arr, $deliveries) {
 			}
 		}
 
+		if(array_key_exists('obj',$arr) && $arr['obj'])
+			sync_objs($channel,$arr['obj']);
+
+
 		if(array_key_exists('channel',$arr) && is_array($arr['channel']) && count($arr['channel'])) {
 			if(array_key_exists('channel_page_flags',$arr['channel']) && intval($arr['channel']['channel_pageflags'])) {
 				$arr['channel']['channel_removed'] = (($arr['channel']['channel_pageflags'] & 0x8000) ? 1 : 0);
-- 
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