From a2e101997836ebd904e94aa896a1bcc2e2c70f01 Mon Sep 17 00:00:00 2001
From: zotlabs <mike@macgirvin.com>
Date: Thu, 23 Mar 2017 21:49:20 -0700
Subject: move db_upgrade to zlib

---
 Zotlabs/Lib/DB_Upgrade.php | 105 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 Zotlabs/Lib/DB_Upgrade.php

(limited to 'Zotlabs/Lib/DB_Upgrade.php')

diff --git a/Zotlabs/Lib/DB_Upgrade.php b/Zotlabs/Lib/DB_Upgrade.php
new file mode 100644
index 000000000..13adaced5
--- /dev/null
+++ b/Zotlabs/Lib/DB_Upgrade.php
@@ -0,0 +1,105 @@
+<?php
+
+namespace Zotlabs\Lib;
+
+
+class DB_Upgrade {
+
+
+	function __construct($db_revision) {
+
+		$build = get_config('system','db_version',0);
+		if(! intval($build))
+			$build = set_config('system','db_version',$db_revision);
+
+		if($build == $db_revision) {
+			// Nothing to be done.
+			return;
+		}
+		else {
+			$stored = intval($build);
+			if(! $stored) {
+				logger('Critical: check_config unable to determine database schema version');
+				return;
+			}
+		
+			$current = intval($db_revision);
+			if(($stored < $current) && file_exists('install/update.php')) {
+
+				Config::Load('database');
+
+				// We're reporting a different version than what is currently installed.
+				// Run any existing update scripts to bring the database up to current.
+				
+				require_once('install/update.php');
+
+				// make sure that boot.php and update.php are the same release, we might be
+				// updating from git right this very second and the correct version of the update.php
+				// file may not be here yet. This can happen on a very busy site.
+
+				if($db_revision == UPDATE_VERSION) {
+					for($x = $stored; $x < $current; $x ++) {
+						if(function_exists('update_r' . $x)) {
+							// There could be a lot of processes running or about to run.
+							// We want exactly one process to run the update command.
+							// So store the fact that we're taking responsibility
+							// after first checking to see if somebody else already has.
+
+							// If the update fails or times-out completely you may need to
+							// delete the config entry to try again.
+
+							if(get_config('database','update_r' . $x))
+								break;
+							set_config('database','update_r' . $x, '1');
+							// call the specific update
+
+							$func = 'update_r' . $x;
+							$retval = $func();
+							if($retval) {
+
+								// Prevent sending hundreds of thousands of emails by creating
+								// a lockfile.  
+
+								$lockfile = 'store/[data]/mailsent';
+
+								if ((file_exists($lockfile)) && (filemtime($lockfile) > (time() - 86400)))
+									return;
+								@unlink($lockfile);
+								//send the administrator an e-mail
+								file_put_contents($lockfile, $x);
+							
+								$r = q("select account_language from account where account_email = '%s' limit 1",
+									dbesc(App::$config['system']['admin_email'])
+								);
+								push_lang(($r) ? $r[0]['account_language'] : 'en');
+
+								z_mail(
+									[
+										'toEmail'        => \App::$config['system']['admin_email'],
+										'messageSubject' => sprintf( t('Update Error at %s'), z_root()),
+										'textVersion'    => replace_macros(get_intltext_template('update_fail_eml.tpl'), 
+											[
+												'$sitename' => \App::$config['system']['sitename'],
+												'$siteurl' =>  z_root(),
+												'$update' => $x,
+												'$error' => sprintf( t('Update %s failed. See error logs.'), $x)
+											]
+										)
+									]
+								);
+
+								//try the logger
+								logger('CRITICAL: Update Failed: ' . $x);
+								pop_lang();
+							}
+							else {
+								set_config('database','update_r' . $x, 'success');
+							}
+						}
+					}
+					set_config('system','db_version', $db_revision);
+				}
+			}
+		}
+	}
+}
\ No newline at end of file
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