Install Error
			
Warning: Composer vendor folder does not exist!
			

				
Shimmie is unable to find the composer vendor directory.

				Have you followed the composer setup instructions found in the README?

				
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 Github instead.
			
		
		
$name ... ";
	if($value) {
		echo "ok\n";
	}
	else {
		echo "failed\n";
	}
}
// }}}

function do_install() { // {{{
	if(file_exists("data/config/auto_install.conf.php")) {
		require_once "data/config/auto_install.conf.php";
	}
	else if(@$_POST["database_type"] == "sqlite") {
		$id = bin2hex(random_bytes(5));
		define('DATABASE_DSN', "sqlite:data/shimmie.{$id}.sqlite");
	}
	else if(isset($_POST['database_type']) && isset($_POST['database_host']) && isset($_POST['database_user']) && isset($_POST['database_name'])) {
		define('DATABASE_DSN', "{$_POST['database_type']}:user={$_POST['database_user']};password={$_POST['database_password']};host={$_POST['database_host']};dbname={$_POST['database_name']}");
	}
	else {
		ask_questions();
		return;
	}

	define("DEBUG_SQL", false);
	define("DATABASE_KA", true);
	install_process();
} // }}}

function ask_questions() { // {{{
	$warnings = array();
	$errors = array();

	if(check_gd_version() == 0 && check_im_version() == 0) {
		$errors[] = "
			No thumbnailers could be found - install the imagemagick
			tools (or the PHP-GD library, if imagemagick is unavailable).
		";
	}
	else if(check_im_version() == 0) {
		$warnings[] = "
			The 'convert' command (from the imagemagick package)
			could not be found - PHP-GD can be used instead, but
			the size of thumbnails will be limited.
		";
	}

	if(!function_exists('mb_strlen')) {
		$errors[] = "
			The mbstring PHP extension is missing - multibyte languages
			(eg non-english languages) may not work right.
		";
	}

	$drivers = PDO::getAvailableDrivers();
	if(
		!in_array("mysql", $drivers) &&
		!in_array("pgsql", $drivers) &&
		!in_array("sqlite", $drivers)
	) {
		$errors[] = "
			No database connection library could be found; shimmie needs
			PDO with either Postgres, MySQL, or SQLite drivers
		";
	}

	$db_m = in_array("mysql", $drivers)  ? 'MySQL' : "";
	$db_p = in_array("pgsql", $drivers)  ? 'PostgreSQL' : "";
	$db_s = in_array("sqlite", $drivers) ? 'SQLite' : "";

	$warn_msg = $warnings ? "
Warnings
".implode("\n
", $warnings) : "";
	$err_msg = $errors ? "
Errors
".implode("\n
", $errors) : "";

	print <<
			
Shimmie Installer

			

				$warn_msg
				$err_msg

				
Database Install
				

					
						

							

								
Type:
								

									$db_m
									$db_p
									$db_s
								
							
							

								
Host:
								

							
							

								
Username:
								

							
							

								
Password:
								

							
							

								
DB Name:
								

							
							

						
					
					
				

				
Help

				

					Please make sure the database you have chosen exists and is empty.

					The username provided must have access to create tables within the database.
				
				

					For SQLite the database name will be a filename on disk, relative to
					where shimmie was installed.
				
				

					Drivers can generally be downloaded with your OS package manager;
					for Debian / Ubuntu you want php-pgsql, php-mysql, or php-sqlite.
				
			
		
EOD;
} // }}}

/**
 * This is where the install really takes place.
 */
function install_process() { // {{{
	build_dirs();
	create_tables();
	insert_defaults();
	write_config();
} // }}}

function create_tables() { // {{{
	try {
		$db = new Database();

		if ( $db->count_tables() > 0 ) {
			print <<
				
Shimmie Installer
				
Warning: The Database schema is not empty!
				

					
Please ensure that the database you are installing Shimmie with is empty before continuing.
					
Once you have emptied the database of any tables, please hit 'refresh' to continue.
					


				
			
EOD;
			exit(2);
		}

		$db->create_table("aliases", "
			oldtag VARCHAR(128) NOT NULL,
			newtag VARCHAR(128) NOT NULL,
			PRIMARY KEY (oldtag)
		");
		$db->execute("CREATE INDEX aliases_newtag_idx ON aliases(newtag)", array());

		$db->create_table("config", "
			name VARCHAR(128) NOT NULL,
			value TEXT,
			PRIMARY KEY (name)
		");
		$db->create_table("users", "
			id SCORE_AIPK,
			name VARCHAR(32) UNIQUE NOT NULL,
			pass VARCHAR(250),
			joindate SCORE_DATETIME NOT NULL DEFAULT SCORE_NOW,
			class VARCHAR(32) NOT NULL DEFAULT 'user',
			email VARCHAR(128)
		");
		$db->execute("CREATE INDEX users_name_idx ON users(name)", array());

		$db->create_table("images", "
			id SCORE_AIPK,
			owner_id INTEGER NOT NULL,
			owner_ip SCORE_INET NOT NULL,
			filename VARCHAR(64) NOT NULL,
			filesize INTEGER NOT NULL,
			hash CHAR(32) UNIQUE NOT NULL,
			ext CHAR(4) NOT NULL,
			source VARCHAR(255),
			width INTEGER NOT NULL,
			height INTEGER NOT NULL,
			posted SCORE_DATETIME NOT NULL DEFAULT SCORE_NOW,
			locked SCORE_BOOL NOT NULL DEFAULT SCORE_BOOL_N,
			FOREIGN KEY (owner_id) REFERENCES users(id) ON DELETE RESTRICT
		");
		$db->execute("CREATE INDEX images_owner_id_idx ON images(owner_id)", array());
		$db->execute("CREATE INDEX images_width_idx ON images(width)", array());
		$db->execute("CREATE INDEX images_height_idx ON images(height)", array());
		$db->execute("CREATE INDEX images_hash_idx ON images(hash)", array());

		$db->create_table("tags", "
			id SCORE_AIPK,
			tag VARCHAR(64) UNIQUE NOT NULL,
			count INTEGER NOT NULL DEFAULT 0
		");
		$db->execute("CREATE INDEX tags_tag_idx ON tags(tag)", array());

		$db->create_table("image_tags", "
			image_id INTEGER NOT NULL,
			tag_id INTEGER NOT NULL,
			UNIQUE(image_id, tag_id),
			FOREIGN KEY (image_id) REFERENCES images(id) ON DELETE CASCADE,
			FOREIGN KEY (tag_id) REFERENCES tags(id) ON DELETE CASCADE
		");
		$db->execute("CREATE INDEX images_tags_image_id_idx ON image_tags(image_id)", array());
		$db->execute("CREATE INDEX images_tags_tag_id_idx ON image_tags(tag_id)", array());

		$db->execute("INSERT INTO config(name, value) VALUES('db_version', 11)");
		$db->commit();
	}
	catch(PDOException $e) {
		handle_db_errors(TRUE, "An error occurred while trying to create the database tables necessary for Shimmie.", $e->getMessage(), 3);
	} catch (Exception $e) {
		handle_db_errors(FALSE, "An unknown error occurred while trying to insert data into the database.", $e->getMessage(), 4);
	}
} // }}}

function insert_defaults() { // {{{
	try {
		$db = new Database();

		$db->execute("INSERT INTO users(name, pass, joindate, class) VALUES(:name, :pass, now(), :class)", Array("name" => 'Anonymous', "pass" => null, "class" => 'anonymous'));
		$db->execute("INSERT INTO config(name, value) VALUES(:name, :value)", Array("name" => 'anon_id', "value" => $db->get_last_insert_id('users_id_seq')));

		if(check_im_version() > 0) {
			$db->execute("INSERT INTO config(name, value) VALUES(:name, :value)", Array("name" => 'thumb_engine', "value" => 'convert'));
		}
		$db->commit();
	}
	catch(PDOException $e) {
		handle_db_errors(TRUE, "An error occurred while trying to insert data into the database.", $e->getMessage(), 5);
	}
	catch (Exception $e) {
		handle_db_errors(FALSE, "An unknown error occurred while trying to insert data into the database.", $e->getMessage(), 6);
	}
} // }}}

function build_dirs() { // {{{
	// *try* and make default dirs. Ignore any errors --
	// if something is amiss, we'll tell the user later
	if(!file_exists("data")) @mkdir("data");
	if(!is_writable("data")) @chmod("data", 0755);

	// Clear file status cache before checking again.
	clearstatcache();

	if(!file_exists("data") || !is_writable("data")) {
		print "
		

			
Shimmie Installer
			
Directory Permissions Error:
			

				
Shimmie needs to have a 'data' folder in its directory, writable by the PHP user.
				
If you see this error, if probably means the folder is owned by you, and it needs to be writable by the web server.
				
PHP reports that it is currently running as user: ".$_ENV["USER"]." (". $_SERVER["USER"] .")
				
Once you have created this folder and / or changed the ownership of the shimmie folder, hit 'refresh' to continue.
				


			
		
		";
		exit(7);
	}
} // }}}

function write_config() { // {{{
	$file_content = '<' . '?php' . "\n" .
			"define('DATABASE_DSN', '".DATABASE_DSN."');\n" .
			'?' . '>';

	if(!file_exists("data/config")) {
		mkdir("data/config", 0755, true);
	}

	if(file_put_contents("data/config/shimmie.conf.php", $file_content, LOCK_EX)) {
		header("Location: index.php");
		print <<
			
Shimmie Installer
			
Things are OK \o/
			

				
If you aren't redirected, click here to Continue.
			
		
EOD;
	}
	else {
		$h_file_content = htmlentities($file_content);
		print <<
			
Shimmie Installer
			
File Permissions Error:
			

				The web server isn't allowed to write to the config file; please copy
				the text below, save it as 'data/config/shimmie.conf.php', and upload it into the shimmie
				folder manually. Make sure that when you save it, there is no whitespace
				before the "<?php" or after the "?>"
				
				
$h_file_content
				
				
Once done, click here to Continue.
				


			
		
EOD;
	}
	echo "\n";
} // }}}

function handle_db_errors(bool $isPDO, string $errorMessage1, string $errorMessage2, int $exitCode) {
	$errorMessage1Extra = ($isPDO ? "Please check and ensure that the database configuration options are all correct." : "Please check the server log files for more information.");
	print <<
			
Shimmie Installer
			
Unknown Error:
			

				
{$errorMessage1}
				
{$errorMessage1Extra}
				
{$errorMessage2}
			
		
EOD;
	exit($exitCode);
}
?>