456 lines
14 KiB
PHP
456 lines
14 KiB
PHP
<?php
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/**
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* Shimmie Installer
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*
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* @package Shimmie
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* @copyright Copyright (c) 2007-2015, Shish et al.
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* @author Shish [webmaster at shishnet.org], jgen [jeffgenovy at gmail.com]
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* @link http://code.shishnet.org/shimmie2/
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
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*
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* Initialise the database, check that folder
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* permissions are set properly.
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*
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* This file should be independent of the database
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* and other such things that aren't ready yet
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*/
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// TODO: Rewrite the entire installer and make it more readable.
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ob_start();
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date_default_timezone_set('UTC');
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?>
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<!DOCTYPE html>
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<html>
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<head>
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<title>Shimmie Installation</title>
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<link rel="shortcut icon" href="ext/handle_static/static/favicon.ico">
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<link rel="stylesheet" href="lib/shimmie.css" type="text/css">
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<script type="text/javascript" src="vendor/bower-asset/jquery/dist/jquery.min.js"></script>
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</head>
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<body>
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<?php if (false) { ?>
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<div id="installer">
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<h1>Install Error</h1>
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<div class="container">
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<p>Shimmie needs to be run via a web server with PHP support -- you
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appear to be either opening the file from your hard disk, or your
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web server is mis-configured and doesn't know how to handle PHP files.</p>
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<p>If you've installed a web server on your desktop PC, you probably
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want to visit <a href="http://localhost/">the local web server</a>.<br/><br/>
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</p>
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</div>
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</div>
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<pre style="display:none">
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<?php } elseif (!file_exists("vendor/")) { ?>
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<div id="installer">
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<h1>Install Error</h1>
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<h3>Warning: Composer vendor folder does not exist!</h3>
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<div class="container">
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<p>Shimmie is unable to find the composer vendor directory.<br>
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Have you followed the composer setup instructions found in the <a href="https://github.com/shish/shimmie2#installation-development">README</a>?</>
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<p>If you are not intending to do any development with Shimmie, it is highly recommend you use one of the pre-packaged releases found on <a href="https://github.com/shish/shimmie2/releases">Github</a> instead.</p>
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</div>
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</div>
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<pre style="display:none">
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<?php }
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// Pull in necessary files
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require_once "core/exceptions.php";
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require_once "core/cacheengine.php";
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require_once "core/dbengine.php";
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require_once "core/database.php";
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if (is_readable("data/config/shimmie.conf.php")) {
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die("Shimmie is already installed.");
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}
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do_install();
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// utilities {{{
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// TODO: Can some of these be pushed into "core/???.inc.php" ?
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function check_gd_version(): int
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{
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$gdversion = 0;
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if (function_exists('gd_info')) {
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$gd_info = gd_info();
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if (substr_count($gd_info['GD Version'], '2.')) {
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$gdversion = 2;
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} elseif (substr_count($gd_info['GD Version'], '1.')) {
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$gdversion = 1;
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}
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}
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return $gdversion;
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}
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function check_im_version(): int
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{
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$convert_check = exec("convert");
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return (empty($convert_check) ? 0 : 1);
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}
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function eok($name, $value)
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{
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echo "<br>$name ... ";
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if ($value) {
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echo "<span style='color: green'>ok</span>\n";
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} else {
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echo "<span style='color: green'>failed</span>\n";
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}
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}
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// }}}
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function do_install()
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{ // {{{
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if (file_exists("data/config/auto_install.conf.php")) {
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require_once "data/config/auto_install.conf.php";
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} elseif (@$_POST["database_type"] == "sqlite") {
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$id = bin2hex(random_bytes(5));
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define('DATABASE_DSN', "sqlite:data/shimmie.{$id}.sqlite");
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} elseif (isset($_POST['database_type']) && isset($_POST['database_host']) && isset($_POST['database_user']) && isset($_POST['database_name'])) {
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define('DATABASE_DSN', "{$_POST['database_type']}:user={$_POST['database_user']};password={$_POST['database_password']};host={$_POST['database_host']};dbname={$_POST['database_name']}");
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} else {
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ask_questions();
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return;
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}
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define("CACHE_DSN", null);
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define("DEBUG_SQL", false);
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define("DATABASE_KA", true);
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install_process();
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} // }}}
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function ask_questions()
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{ // {{{
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$warnings = [];
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$errors = [];
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if (check_gd_version() == 0 && check_im_version() == 0) {
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$errors[] = "
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No thumbnailers could be found - install the imagemagick
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tools (or the PHP-GD library, if imagemagick is unavailable).
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";
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} elseif (check_im_version() == 0) {
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$warnings[] = "
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The 'convert' command (from the imagemagick package)
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could not be found - PHP-GD can be used instead, but
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the size of thumbnails will be limited.
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";
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}
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if (!function_exists('mb_strlen')) {
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$errors[] = "
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The mbstring PHP extension is missing - multibyte languages
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(eg non-english languages) may not work right.
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";
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}
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$drivers = PDO::getAvailableDrivers();
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if (
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!in_array("mysql", $drivers) &&
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!in_array("pgsql", $drivers) &&
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!in_array("sqlite", $drivers)
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) {
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$errors[] = "
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No database connection library could be found; shimmie needs
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PDO with either Postgres, MySQL, or SQLite drivers
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";
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}
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$db_m = in_array("mysql", $drivers) ? '<option value="mysql">MySQL</option>' : "";
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$db_p = in_array("pgsql", $drivers) ? '<option value="pgsql">PostgreSQL</option>' : "";
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$db_s = in_array("sqlite", $drivers) ? '<option value="sqlite">SQLite</option>' : "";
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$warn_msg = $warnings ? "<h3>Warnings</h3>".implode("\n<p>", $warnings) : "";
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$err_msg = $errors ? "<h3>Errors</h3>".implode("\n<p>", $errors) : "";
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print <<<EOD
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<div id="installer">
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<h1>Shimmie Installer</h1>
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<div class="container">
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$warn_msg
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$err_msg
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<h3>Database Install</h3>
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<form action="index.php" method="POST">
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<center>
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<table class='form'>
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<tr>
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<th>Type:</th>
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<td><select name="database_type" id="database_type" onchange="update_qs();">
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$db_m
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$db_p
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$db_s
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</select></td>
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</tr>
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<tr class="dbconf mysql pgsql">
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<th>Host:</th>
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<td><input type="text" name="database_host" size="40" value="localhost"></td>
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</tr>
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<tr class="dbconf mysql pgsql">
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<th>Username:</th>
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<td><input type="text" name="database_user" size="40"></td>
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</tr>
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<tr class="dbconf mysql pgsql">
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<th>Password:</th>
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<td><input type="password" name="database_password" size="40"></td>
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</tr>
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<tr class="dbconf mysql pgsql">
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<th>DB Name:</th>
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<td><input type="text" name="database_name" size="40" value="shimmie"></td>
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</tr>
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<tr><td colspan="2"><input type="submit" value="Go!"></td></tr>
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</table>
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</center>
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<script>
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$(function() {
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update_qs();
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});
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function update_qs() {
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$(".dbconf").hide();
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var seldb = $("#database_type").val() || "none";
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$("."+seldb).show();
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}
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</script>
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</form>
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<h3>Help</h3>
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<p class="dbconf mysql pgsql">
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Please make sure the database you have chosen exists and is empty.<br>
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The username provided must have access to create tables within the database.
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</p>
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<p class="dbconf sqlite">
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For SQLite the database name will be a filename on disk, relative to
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where shimmie was installed.
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</p>
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<p class="dbconf none">
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Drivers can generally be downloaded with your OS package manager;
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for Debian / Ubuntu you want php-pgsql, php-mysql, or php-sqlite.
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</p>
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</div>
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</div>
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EOD;
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} // }}}
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/**
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* This is where the install really takes place.
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*/
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function install_process()
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{ // {{{
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build_dirs();
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create_tables();
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insert_defaults();
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write_config();
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} // }}}
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function create_tables()
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{ // {{{
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try {
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$db = new Database();
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if ($db->count_tables() > 0) {
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print <<<EOD
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<div id="installer">
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<h1>Shimmie Installer</h1>
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<h3>Warning: The Database schema is not empty!</h3>
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<div class="container">
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<p>Please ensure that the database you are installing Shimmie with is empty before continuing.</p>
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<p>Once you have emptied the database of any tables, please hit 'refresh' to continue.</p>
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<br/><br/>
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</div>
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</div>
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EOD;
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exit(2);
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}
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$db->create_table("aliases", "
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oldtag VARCHAR(128) NOT NULL,
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newtag VARCHAR(128) NOT NULL,
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PRIMARY KEY (oldtag)
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");
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$db->execute("CREATE INDEX aliases_newtag_idx ON aliases(newtag)", []);
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$db->create_table("config", "
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name VARCHAR(128) NOT NULL,
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value TEXT,
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PRIMARY KEY (name)
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");
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$db->create_table("users", "
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id SCORE_AIPK,
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name VARCHAR(32) UNIQUE NOT NULL,
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pass VARCHAR(250),
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joindate SCORE_DATETIME NOT NULL DEFAULT SCORE_NOW,
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class VARCHAR(32) NOT NULL DEFAULT 'user',
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email VARCHAR(128)
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");
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$db->execute("CREATE INDEX users_name_idx ON users(name)", []);
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$db->create_table("images", "
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id SCORE_AIPK,
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owner_id INTEGER NOT NULL,
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owner_ip SCORE_INET NOT NULL,
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filename VARCHAR(64) NOT NULL,
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filesize INTEGER NOT NULL,
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hash CHAR(32) UNIQUE NOT NULL,
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ext CHAR(4) NOT NULL,
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source VARCHAR(255),
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width INTEGER NOT NULL,
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height INTEGER NOT NULL,
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posted SCORE_DATETIME NOT NULL DEFAULT SCORE_NOW,
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locked SCORE_BOOL NOT NULL DEFAULT SCORE_BOOL_N,
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FOREIGN KEY (owner_id) REFERENCES users(id) ON DELETE RESTRICT
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");
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$db->execute("CREATE INDEX images_owner_id_idx ON images(owner_id)", []);
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$db->execute("CREATE INDEX images_width_idx ON images(width)", []);
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$db->execute("CREATE INDEX images_height_idx ON images(height)", []);
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$db->execute("CREATE INDEX images_hash_idx ON images(hash)", []);
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$db->create_table("tags", "
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id SCORE_AIPK,
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tag VARCHAR(64) UNIQUE NOT NULL,
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count INTEGER NOT NULL DEFAULT 0
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");
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$db->execute("CREATE INDEX tags_tag_idx ON tags(tag)", []);
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$db->create_table("image_tags", "
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image_id INTEGER NOT NULL,
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tag_id INTEGER NOT NULL,
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UNIQUE(image_id, tag_id),
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FOREIGN KEY (image_id) REFERENCES images(id) ON DELETE CASCADE,
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FOREIGN KEY (tag_id) REFERENCES tags(id) ON DELETE CASCADE
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");
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$db->execute("CREATE INDEX images_tags_image_id_idx ON image_tags(image_id)", []);
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$db->execute("CREATE INDEX images_tags_tag_id_idx ON image_tags(tag_id)", []);
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$db->execute("INSERT INTO config(name, value) VALUES('db_version', 11)");
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$db->commit();
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} catch (PDOException $e) {
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handle_db_errors(true, "An error occurred while trying to create the database tables necessary for Shimmie.", $e->getMessage(), 3);
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} catch (Exception $e) {
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handle_db_errors(false, "An unknown error occurred while trying to insert data into the database.", $e->getMessage(), 4);
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}
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} // }}}
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function insert_defaults()
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{ // {{{
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try {
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$db = new Database();
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$db->execute("INSERT INTO users(name, pass, joindate, class) VALUES(:name, :pass, now(), :class)", ["name" => 'Anonymous', "pass" => null, "class" => 'anonymous']);
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$db->execute("INSERT INTO config(name, value) VALUES(:name, :value)", ["name" => 'anon_id', "value" => $db->get_last_insert_id('users_id_seq')]);
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if (check_im_version() > 0) {
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$db->execute("INSERT INTO config(name, value) VALUES(:name, :value)", ["name" => 'thumb_engine', "value" => 'convert']);
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}
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$db->commit();
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} catch (PDOException $e) {
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handle_db_errors(true, "An error occurred while trying to insert data into the database.", $e->getMessage(), 5);
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} catch (Exception $e) {
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handle_db_errors(false, "An unknown error occurred while trying to insert data into the database.", $e->getMessage(), 6);
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}
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} // }}}
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function build_dirs()
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{ // {{{
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// *try* and make default dirs. Ignore any errors --
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// if something is amiss, we'll tell the user later
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if (!file_exists("data")) {
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@mkdir("data");
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}
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if (!is_writable("data")) {
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@chmod("data", 0755);
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}
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// Clear file status cache before checking again.
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clearstatcache();
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if (!file_exists("data") || !is_writable("data")) {
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print "
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<div id='installer'>
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<h1>Shimmie Installer</h1>
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<h3>Directory Permissions Error:</h3>
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<div class='container'>
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<p>Shimmie needs to have a 'data' folder in its directory, writable by the PHP user.</p>
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<p>If you see this error, if probably means the folder is owned by you, and it needs to be writable by the web server.</p>
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<p>PHP reports that it is currently running as user: ".$_ENV["USER"]." (". $_SERVER["USER"] .")</p>
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<p>Once you have created this folder and / or changed the ownership of the shimmie folder, hit 'refresh' to continue.</p>
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<br/><br/>
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</div>
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</div>
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";
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exit(7);
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}
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} // }}}
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function write_config()
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{ // {{{
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$file_content = '<' . '?php' . "\n" .
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"define('DATABASE_DSN', '".DATABASE_DSN."');\n" .
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'?' . '>';
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if (!file_exists("data/config")) {
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mkdir("data/config", 0755, true);
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}
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if (file_put_contents("data/config/shimmie.conf.php", $file_content, LOCK_EX)) {
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header("Location: index.php");
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print <<<EOD
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<div id="installer">
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<h1>Shimmie Installer</h1>
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<h3>Things are OK \o/</h3>
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<div class="container">
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<p>If you aren't redirected, <a href="index.php">click here to Continue</a>.
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</div>
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</div>
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EOD;
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} else {
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$h_file_content = htmlentities($file_content);
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print <<<EOD
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<div id="installer">
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<h1>Shimmie Installer</h1>
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<h3>File Permissions Error:</h3>
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<div class="container">
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The web server isn't allowed to write to the config file; please copy
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the text below, save it as 'data/config/shimmie.conf.php', and upload it into the shimmie
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folder manually. Make sure that when you save it, there is no whitespace
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before the "<?php" or after the "?>"
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<p><textarea cols="80" rows="2">$h_file_content</textarea>
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<p>Once done, <a href="index.php">click here to Continue</a>.
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<br/><br/>
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</div>
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</div>
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EOD;
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}
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echo "\n";
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} // }}}
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function handle_db_errors(bool $isPDO, string $errorMessage1, string $errorMessage2, int $exitCode)
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{
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$errorMessage1Extra = ($isPDO ? "Please check and ensure that the database configuration options are all correct." : "Please check the server log files for more information.");
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print <<<EOD
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<div id="installer">
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<h1>Shimmie Installer</h1>
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<h3>Unknown Error:</h3>
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<div class="container">
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<p>{$errorMessage1}</p>
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<p>{$errorMessage1Extra}</p>
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<p>{$errorMessage2}</p>
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</div>
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</div>
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EOD;
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exit($exitCode);
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}
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?>
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</body>
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</html>
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