1 files changed, 86 insertions, 0 deletions
diff --git a/admin/upgrade.php b/admin/upgrade.php
new file mode 100644
index 0000000..de46369
--- /dev/null
+++ b/admin/upgrade.php
@@ -0,0 +1,86 @@
+<?php
+define( 'YOURLS_ADMIN', true );
+define( 'YOURLS_UPGRADING', true );
+require_once( dirname( __DIR__ ).'/includes/load-yourls.php' );
+require_once( YOURLS_INC.'/functions-upgrade.php' );
+require_once( YOURLS_INC.'/functions-install.php' );
+yourls_maybe_require_auth();
+
+yourls_html_head( 'upgrade', yourls__( 'Upgrade YOURLS' ) );
+yourls_html_logo();
+yourls_html_menu();
+?>
+		<h2><?php yourls_e( 'Upgrade YOURLS' ); ?></h2>
+<?php
+
+// Check if upgrade is needed
+if ( !yourls_upgrade_is_needed() ) {
+	echo '<p>' . yourls_s( 'Upgrade not required. Go <a href="%s">back to play</a>!', yourls_admin_url('index.php') ) . '</p>';
+
+
+} else {
+	/*
+	step 1: create new tables and populate them, update old tables structure,
+	step 2: convert each row of outdated tables if needed
+	step 3: - if applicable finish updating outdated tables (indexes etc)
+	        - update version & db_version in options, this is all done!
+	*/
+
+	// From what are we upgrading?
+	if ( isset( $_GET['oldver'] ) && isset( $_GET['oldsql'] ) ) {
+		$oldver = yourls_sanitize_version( $_GET['oldver'] );
+		$oldsql = yourls_sanitize_version( $_GET['oldsql'] );
+	} else {
+		list( $oldver, $oldsql ) = yourls_get_current_version_from_sql();
+	}
+
+	// To what are we upgrading ?
+	$newver = YOURLS_VERSION;
+	$newsql = YOURLS_DB_VERSION;
+
+	// Verbose & ugly details
+	yourls_debug_mode(true);
+
+	// Let's go
+	$step = ( isset( $_GET['step'] ) ? intval( $_GET['step'] ) : 0 );
+	switch( $step ) {
+
+		default:
+		case 0:
+			?>
+			<p><?php yourls_e( 'Your current installation needs to be upgraded.' ); ?></p>
+			<p><?php yourls_e( 'Please, pretty please, it is recommended that you <strong>backup</strong> your database<br/>(you should do this regularly anyway)' ); ?></p>
+			<p><?php yourls_e( "Nothing awful <em>should</em> happen, but this doesn't mean it <em>won't</em> happen, right? ;)" ); ?></p>
+			<p><?php yourls_e( "On every step, if <span class='error'>something goes wrong</span>, you'll see a message and hopefully a way to fix." ); ?></p>
+			<p><?php yourls_e( 'If everything goes too fast and you cannot read, <span class="success">good for you</span>, let it go :)' ); ?></p>
+			<p><?php yourls_e( 'Once you are ready, press "Upgrade" !' ); ?></p>
+			<?php
+			echo "
+			<form action='upgrade.php?' method='get'>
+			<input type='hidden' name='step' value='1' />
+			<input type='hidden' name='oldver' value='$oldver' />
+			<input type='hidden' name='newver' value='$newver' />
+			<input type='hidden' name='oldsql' value='$oldsql' />
+			<input type='hidden' name='newsql' value='$newsql' />
+			<input type='submit' class='primary' value='" . yourls_esc_attr__( 'Upgrade' ) . "' />
+			</form>";
+
+			break;
+
+		case 1:
+		case 2:
+			$upgrade = yourls_upgrade( $step, $oldver, $newver, $oldsql, $newsql );
+			break;
+
+		case 3:
+			$upgrade = yourls_upgrade( 3, $oldver, $newver, $oldsql, $newsql );
+			echo '<p>' . yourls__( 'Your installation is now up to date ! ' ) . '</p>';
+			echo '<p>' . yourls_s( 'Go back to <a href="%s">the admin interface</a>', yourls_admin_url('index.php') ) . '</p>';
+	}
+
+}
+
+
+?>
+
+<?php yourls_html_footer(); ?>