332 lines
11 KiB
PHP
332 lines
11 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 https://code.shishnet.org/shimmie2/
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* @license https://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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function install()
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{
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date_default_timezone_set('UTC');
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if (is_readable("data/config/shimmie.conf.php")) {
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die_nicely(
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"Shimmie is already installed.",
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"data/config/shimmie.conf.php exists, how did you get here?"
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);
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}
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// Pull in necessary files
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require_once "vendor/autoload.php";
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global $_tracer;
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$_tracer = new EventTracer();
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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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require_once "core/util.php";
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$dsn = get_dsn();
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if ($dsn) {
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do_install($dsn);
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} else {
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ask_questions();
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}
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}
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function get_dsn()
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{
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if (getenv("INSTALL_DSN")) {
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$dsn = getenv("INSTALL_DSN");
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} elseif (@$_POST["database_type"] == DatabaseDriver::SQLITE) {
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/** @noinspection PhpUnhandledExceptionInspection */
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$id = bin2hex(random_bytes(5));
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$dsn = "sqlite:data/shimmie.{$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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$dsn = "{$_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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$dsn = null;
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}
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return $dsn;
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}
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function do_install($dsn)
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{
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try {
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create_dirs();
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create_tables(new Database($dsn));
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write_config($dsn);
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} catch (InstallerException $e) {
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die_nicely($e->title, $e->body, $e->exit_code);
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}
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}
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function ask_questions()
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{
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$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(DatabaseDriver::MYSQL, $drivers) &&
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!in_array(DatabaseDriver::PGSQL, $drivers) &&
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!in_array(DatabaseDriver::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(DatabaseDriver::MYSQL, $drivers) ? '<option value="'. DatabaseDriver::MYSQL .'">MySQL</option>' : "";
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$db_p = in_array(DatabaseDriver::PGSQL, $drivers) ? '<option value="'. DatabaseDriver::PGSQL .'">PostgreSQL</option>' : "";
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$db_s = in_array(DatabaseDriver::SQLITE, $drivers) ? '<option value="'. DatabaseDriver::SQLITE .'">SQLite</option>' : "";
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$warn_msg = $warnings ? "<h3>Warnings</h3>".implode("\n<p>", $warnings) : "";
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$err_msg = $errors ? "<h3>Errors</h3>".implode("\n<p>", $errors) : "";
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die_nicely(
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"Install Options",
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<<<EOD
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$warn_msg
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$err_msg
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<form action="index.php" method="POST">
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<table class='form' style="margin: 1em auto;">
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<tr>
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<th>Type:</th>
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<td><select name="database_type" id="database_type" onchange="update_qs();">
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$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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<script>
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document.addEventListener('DOMContentLoaded', update_qs);
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function q(n) {
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return document.querySelectorAll(n);
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}
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function update_qs() {
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Array.prototype.forEach.call(q('.dbconf'), function(el, i){
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el.style.display = 'none';
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});
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let seldb = q("#database_type")[0].value || "none";
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Array.prototype.forEach.call(q('.'+seldb), function(el, i){
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el.style.display = null;
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});
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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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EOD
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);
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}
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function create_dirs()
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{
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$data_exists = file_exists("data") || mkdir("data");
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$data_writable = $data_exists && (is_writable("data") || chmod("data", 0755));
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if (!$data_exists || !$data_writable) {
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throw new InstallerException(
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"Directory Permissions Error:",
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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: ".get_current_user()." (". getmyuid() .")</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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7
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);
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}
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}
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function create_tables(Database $db)
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{
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try {
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if ($db->count_tables() > 0) {
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throw new InstallerException(
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"Warning: The Database schema is not empty!",
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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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2
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);
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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 TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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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->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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$db->create_table("images", "
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id SCORE_AIPK,
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owner_id INTEGER NOT NULL,
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owner_ip SCORE_INET NOT NULL,
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filename VARCHAR(64) NOT NULL,
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filesize INTEGER NOT NULL,
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hash CHAR(32) UNIQUE NOT NULL,
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ext CHAR(4) NOT NULL,
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source VARCHAR(255),
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width INTEGER NOT NULL,
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height INTEGER NOT NULL,
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posted TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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locked BOOLEAN NOT NULL DEFAULT FALSE,
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FOREIGN KEY (owner_id) REFERENCES users(id) ON DELETE RESTRICT
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");
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$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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$db->execute("INSERT INTO config(name, value) VALUES('db_version', 11)");
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// mysql auto-commits when creating a table, so the transaction
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// is closed; other databases need to commit
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if ($db->is_transaction_open()) {
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$db->commit();
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}
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} catch (PDOException $e) {
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throw new InstallerException(
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"PDO Error:",
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"<p>An error occurred while trying to create the database tables necessary for Shimmie.</p>
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<p>Please check and ensure that the database configuration options are all correct.</p>
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<p>{$e->getMessage()}</p>
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",
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3
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);
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}
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}
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function write_config($dsn)
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{
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$file_content = "<" . "?php\ndefine('DATABASE_DSN', '$dsn');\n";
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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", $file_content, LOCK_EX)) {
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header("Location: index.php?flash=Installation%20complete");
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die_nicely(
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"Installation Successful",
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"<p>If you aren't redirected, <a href=\"index.php\">click here to Continue</a>."
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);
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} else {
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$h_file_content = htmlentities($file_content);
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throw new InstallerException(
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"File Permissions Error:",
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"The web server isn't allowed to write to the config file; please copy
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the text below, save it as 'data/config/shimmie.conf.php', and upload it into the shimmie
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folder manually. Make sure that when you save it, there is no whitespace
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before the \"<?php\".
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<p><textarea cols='80' rows='2'>$h_file_content</textarea>
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<p>Once done, <a href='index.php'>click here to Continue</a>.",
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0
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);
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}
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}
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