<?php

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define( 'YOURLS_ADMIN', true );

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define( 'YOURLS_UPGRADING', true );

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require_once( dirname( __DIR__ ).'/includes/load-yourls.php' );

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yourls_maybe_require_auth();

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yourls_html_head( 'upgrade', yourls__( 'Upgrade YOURLS' ) );

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yourls_html_logo();

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yourls_html_menu();

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?>

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<h2><?php yourls_e( 'Upgrade YOURLS' ); ?></h2>

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<?php

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// Check if upgrade is needed

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if ( !yourls_upgrade_is_needed() ) {

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echo '<p>' . yourls_s( 'Upgrade not required. Go <a href="%s">back to play</a>!', yourls_admin_url('index.php') ) . '</p>';

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} else {

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/*

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step 1: create new tables and populate them, update old tables structure,

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step 2: convert each row of outdated tables if needed

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step 3: - if applicable finish updating outdated tables (indexes etc)

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- update version & db_version in options, this is all done!

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*/

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// From what are we upgrading?

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if ( isset( $_GET['oldver'] ) && isset( $_GET['oldsql'] ) ) {

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$oldver = yourls_sanitize_version($_GET['oldver']);

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$oldsql = intval($_GET['oldsql']);

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} else {

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list( $oldver, $oldsql ) = yourls_get_current_version_from_sql();

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}

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// To what are we upgrading ?

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$newver = YOURLS_VERSION;

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$newsql = YOURLS_DB_VERSION;

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// Verbose & ugly details

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yourls_debug_mode(true);

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// Let's go

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$step = ( isset( $_GET['step'] ) ? intval( $_GET['step'] ) : 0 );

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switch( $step ) {

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default:

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case 0:

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?>

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<p><?php yourls_e( 'Your current installation needs to be upgraded.' ); ?></p>

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<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>

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<p><?php yourls_e( "Nothing awful <em>should</em> happen, but this doesn't mean it <em>won't</em> happen, right? ;)" ); ?></p>

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<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>

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<p><?php yourls_e( 'If everything goes too fast and you cannot read, <span class="success">good for you</span>, let it go :)' ); ?></p>

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<p><?php yourls_e( 'Once you are ready, press "Upgrade" !' ); ?></p>

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<?php

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echo "

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<form action='upgrade.php?' method='get'>

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<input type='hidden' name='step' value='1' />

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<input type='hidden' name='oldver' value='$oldver' />

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<input type='hidden' name='newver' value='$newver' />

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<input type='hidden' name='oldsql' value='$oldsql' />

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<input type='hidden' name='newsql' value='$newsql' />

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<input type='submit' class='primary' value='" . yourls_esc_attr__( 'Upgrade' ) . "' />

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</form>";

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break;

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case 1:

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case 2:

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$upgrade = yourls_upgrade( $step, $oldver, $newver, $oldsql, $newsql );

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break;

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case 3:

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$upgrade = yourls_upgrade( 3, $oldver, $newver, $oldsql, $newsql );

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echo '<p>' . yourls__( 'Your installation is now up to date ! ' ) . '</p>';

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echo '<p>' . yourls_s( 'Go back to <a href="%s">the admin interface</a>', yourls_admin_url('index.php') ) . '</p>';

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}

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}

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?>

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<?php yourls_html_footer(); ?>

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