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simplify bootstrap. move validation to classes.

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This commit is contained in:
Greg Sarjeant 2025-06-30 08:43:45 -04:00
parent cdc1153af4
commit 5998e7f7d3
6 changed files with 352 additions and 342 deletions
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338
config/bootstrap.php
View File

@ -1,9 +1,7 @@
<?php
// This is the initialization code that needs to be run before anything else.
// - define paths
// - confirm /storage directory exists and is writable
// - make sure database is ready
// - load classes
// - set up autoloader
// Define all the important paths
define('APP_ROOT', dirname(dirname(__FILE__)));
@ -16,63 +14,17 @@ define('DATA_DIR', STORAGE_DIR . '/db');
define('CSS_UPLOAD_DIR', STORAGE_DIR . '/upload/css');
define('DB_FILE', DATA_DIR . '/tkr.sqlite');
// Define an exception for validation errors
class SetupException extends Exception {
private $setupIssue;
public function __construct(string $message, string $setupIssue = '', int $code = 0, Throwable $previous = null) {
parent::__construct($message, $code, $previous);
$this->setupIssue = $setupIssue;
}
public function getSetupIssue(): string {
return $this->setupIssue;
}
}
// Exception handler
function handle_setup_exception(SetupException $e){
switch ($e->getSetupIssue()){
case 'storage_missing':
case 'storage_permissions':
case 'directory_creation':
case 'directory_permissions':
case 'database_connection':
case 'load_classes':
case 'table_creation':
// Unrecoverable errors.
// Show error message and exit
http_response_code(500);
echo "<h1>Configuration Error</h1>";
echo "<p>" . Util::escape_html($e->getSetupIssue) . '-' . Util::escape_html($e->getMessage()) . "</p>";
exit;
case 'table_contents':
// Recoverable error.
// Redirect to setup if we aren't already headed there.
// NOTE: Just read directly from init.php instead of
// trying to use the config object. This is the initial
// setup. It shouldn't assume anything can be loaded.
$init = require APP_ROOT . '/config/init.php';
$currentPath = trim(parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH), '/');
if (strpos($currentPath, 'setup') === false) {
header('Location: ' . $init['base_path'] . 'setup');
exit;
}
}
}
// Janky autoloader function
// This is a bit more consistent with current frameworks
function autoloader($className) {
$classFilename = $className . '.php';
$iterator = new RecursiveIteratorIterator(
$files = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator(SRC_DIR, RecursiveDirectoryIterator::SKIP_DOTS),
RecursiveIteratorIterator::LEAVES_ONLY
);
foreach ($iterator as $file) {
foreach ($files as $file) {
if ($file->getFilename() === $classFilename) {
include_once $file->getPathname();
return;
@ -87,287 +39,3 @@ function autoloader($className) {
// Register the autoloader
spl_autoload_register('autoloader');
// Main validation function
// Any failures will throw a SetupException
function confirm_setup(): void {
validate_storage_dir();
validate_storage_subdirs();
validate_tables();
validate_table_contents();
migrate_db();
migrate_tick_files();
}
// Make sure the storage/ directory exists and is writable
function validate_storage_dir(): void{
if (!is_dir(STORAGE_DIR)) {
throw new SetupException(
STORAGE_DIR . "does not exist. Please check your installation.",
'storage_missing'
);
}
if (!is_writable(STORAGE_DIR)) {
throw new SetupException(
STORAGE_DIR . "is not writable. Exiting.",
'storage_permissions'
);
}
}
// validate that the required storage subdirectories exist
// attempt to create them if they don't
function validate_storage_subdirs(): void {
$storageSubdirs = array();
$storageSubdirs[] = CSS_UPLOAD_DIR;
$storageSubdirs[] = DATA_DIR;
$storageSubdirs[] = TICKS_DIR;
foreach($storageSubdirs as $storageSubdir){
if (!is_dir($storageSubdir)) {
if (!mkdir($storageSubdir, 0770, true)) {
throw new SetupException(
"Failed to create required directory: $dir",
'directory_creation'
);
}
}
if (!is_writable($storageSubdir)) {
if (!chmod($storageSubdir, 0770)) {
throw new SetupException(
"Required directory is not writable: $dir",
'directory_permissions'
);
}
}
}
}
function migrate_tick_files() {
$files = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator(TICKS_DIR, RecursiveDirectoryIterator::SKIP_DOTS)
);
foreach ($files as $file) {
if ($file->isFile() && str_ends_with($file->getFilename(), '.txt')) {
migrate_tick_file($file->getPathname());
}
}
}
function migrate_tick_file($filepath) {
$lines = file($filepath, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
$modified = false;
foreach ($lines as &$line) {
$fields = explode('|', $line);
if (count($fields) === 2) {
// Convert id|text to id|emoji|text
$line = $fields[0] . '||' . $fields[1];
$modified = true;
}
}
if ($modified) {
file_put_contents($filepath, implode("\n", $lines) . "\n");
// TODO: log properly
//echo "Migrated: " . basename($filepath) . "\n";
}
}
function get_db(): PDO {
try {
// SQLite will just create this if it doesn't exist.
$db = new PDO("sqlite:" . DB_FILE);
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
} catch (PDOException $e) {
throw new SetupException(
"Database connection failed: " . $e->getMessage(),
'database_connection',
0,
$e
);
}
return $db;
}
// The database version will just be an int
// stored as PRAGMA user_version. It will
// correspond to the most recent migration file applied to the db.
function get_db_version(): int {
$db = get_db();
return $db->query("PRAGMA user_version")->fetchColumn() ?? 0;
}
function migration_number_from_file(string $filename): int {
$basename = basename($filename, '.sql');
$parts = explode('_', $basename);
return (int) $parts[0];
}
function set_db_version(int $newVersion): void {
$currentVersion = get_db_version();
if ($newVersion <= $currentVersion){
throw new SetupException(
"New version ($newVersion) must be greater than current version ($currentVersion)",
'db_migration'
);
}
$db = get_db();
$db->exec("PRAGMA user_version = $newVersion");
}
function get_pending_migrations(): array {
$currentVersion = get_db_version();
$files = glob(CONFIG_DIR . '/migrations/*.sql');
$pending = [];
foreach ($files as $file) {
$version = migration_number_from_file($file);
if ($version > $currentVersion) {
$pending[$version] = $file;
}
}
ksort($pending);
return $pending;
}
function migrate_db(): void {
$migrations = get_pending_migrations();
if (empty($migrations)) {
# TODO: log
return;
}
$db = get_db();
$db->beginTransaction();
try {
foreach ($migrations as $version => $file) {
$filename = basename($file);
// TODO: log properly
$sql = file_get_contents($file);
if ($sql === false) {
throw new Exception("Could not read migration file: $file");
}
// Execute the migration SQL
$db->exec($sql);
}
// Update db version
$db->commit();
set_db_version($version);
//TODO: log properly
//echo "All migrations completed successfully.\n";
} catch (Exception $e) {
$db->rollBack();
throw new SetupException(
"Migration failed: $filename",
'db_migration',
0,
$e
);
}
}
function create_tables(): void {
$db = get_db();
try {
// user table
$db->exec("CREATE TABLE IF NOT EXISTS user (
id INTEGER PRIMARY KEY,
username TEXT NOT NULL,
display_name TEXT NOT NULL,
password_hash TEXT NULL,
about TEXT NULL,
website TEXT NULL,
mood TEXT NULL
)");
// settings table
$db->exec("CREATE TABLE IF NOT EXISTS settings (
id INTEGER PRIMARY KEY,
site_title TEXT NOT NULL,
site_description TEXT NULL,
base_url TEXT NOT NULL,
base_path TEXT NOT NULL,
items_per_page INTEGER NOT NULL,
css_id INTEGER NULL
)");
// css table
$db->exec("CREATE TABLE IF NOT EXISTS css (
id INTEGER PRIMARY KEY,
filename TEXT UNIQUE NOT NULL,
description TEXT NULL
)");
// mood table
$db->exec("CREATE TABLE IF NOT EXISTS emoji(
id INTEGER PRIMARY KEY,
emoji TEXT UNIQUE NOT NULL,
description TEXT NOT NULL
)");
} catch (PDOException $e) {
throw new SetupException(
"Table creation failed: " . $e->getMessage(),
'table_creation',
0,
$e
);
}
}
// make sure all tables exist
// attempt to create them if they don't
function validate_tables(): void {
$appTables = array();
$appTables[] = "settings";
$appTables[] = "user";
$appTables[] = "css";
$appTables[] = "emoji";
$db = get_db();
foreach ($appTables as $appTable){
$stmt = $db->prepare("SELECT name FROM sqlite_master WHERE type='table' AND name=?");
$stmt->execute([$appTable]);
if (!$stmt->fetch()){
// At least one table doesn't exist.
// Try creating tables (hacky, but I have 4 total tables)
// Will throw an exception if it fails
create_tables();
}
}
}
// make sure tables that need to be seeded have been
function validate_table_contents(): void {
$db = get_db();
// make sure required tables (user, settings) are populated
$user_count = (int) $db->query("SELECT COUNT(*) FROM user")->fetchColumn();
$settings_count = (int) $db->query("SELECT COUNT(*) FROM settings")->fetchColumn();
// If either required table has no records and we aren't on /admin,
// redirect to /admin to complete setup
if ($user_count === 0 || $settings_count === 0){
throw new SetupException(
"Required tables aren't populated. Please complete setup",
'table_contents',
);
};
}

16
public/index.php
View File

@ -13,25 +13,27 @@ if (preg_match('/\.php$/', $path)) {
// Define base paths and load classes
include_once(dirname(dirname(__FILE__)) . "/config/bootstrap.php");
//load_classes();
// Make sure the initial setup is complete
// unless we're already heading to setup
if (!(preg_match('/setup$/', $path))) {
try {
confirm_setup();
// filesystem validation
$fsMgr = new Filesystem();
$fsMgr->validate();
// database validation
$dbMgr = new Database();
$dbMgr->validate();
} catch (SetupException $e) {
handle_setup_exception($e);
$e->handle();
exit;
}
}
// initialize the database
global $db;
$db = get_db();
// Everything's loaded and setup is confirmed.
// Let's start ticking.
$db = Database::get();
// Initialize core entities
// Defining these as globals isn't great practice,

203
src/Framework/Database/Database.php Normal file
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@ -0,0 +1,203 @@
<?php
class Database{
public static function get(): PDO {
try {
// SQLite will just create this if it doesn't exist.
$db = new PDO("sqlite:" . DB_FILE);
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
} catch (PDOException $e) {
throw new SetupException(
"Database connection failed: " . $e->getMessage(),
'database_connection',
0,
$e
);
}
return $db;
}
public function validate(): void{
$this->validateTables();
$this->validateTableContents();
$this->migrate();
}
// The database version will just be an int
// stored as PRAGMA user_version. It will
// correspond to the most recent migration file applied to the db.
private function getVersion(): int {
$db = self::get();
return $db->query("PRAGMA user_version")->fetchColumn() ?? 0;
}
private function migrationNumberFromFile(string $filename): int {
$basename = basename($filename, '.sql');
$parts = explode('_', $basename);
return (int) $parts[0];
}
private function setVersion(int $newVersion): void {
$currentVersion = $this->getVersion();
if ($newVersion <= $currentVersion){
throw new SetupException(
"New version ($newVersion) must be greater than current version ($currentVersion)",
'db_migration'
);
}
$db = self::get();
$db->exec("PRAGMA user_version = $newVersion");
}
private function getPendingMigrations(): array {
$currentVersion = $this->getVersion();
$files = glob(CONFIG_DIR . '/migrations/*.sql');
$pending = [];
foreach ($files as $file) {
$version = $this->migrationNumberFromFile($file);
if ($version > $currentVersion) {
$pending[$version] = $file;
}
}
ksort($pending);
return $pending;
}
private function migrate(): void {
$migrations = $this->getPendingMigrations();
if (empty($migrations)) {
# TODO: log
return;
}
$db = get_db();
$db->beginTransaction();
try {
foreach ($migrations as $version => $file) {
$filename = basename($file);
// TODO: log properly
$sql = file_get_contents($file);
if ($sql === false) {
throw new Exception("Could not read migration file: $file");
}
// Execute the migration SQL
$db->exec($sql);
}
// Update db version
$db->commit();
$this->setVersion($version);
//TODO: log properly
//echo "All migrations completed successfully.\n";
} catch (Exception $e) {
$db->rollBack();
throw new SetupException(
"Migration failed: $filename",
'db_migration',
0,
$e
);
}
}
private function createTables(): void {
$db = self::get();
try {
// user table
$db->exec("CREATE TABLE IF NOT EXISTS user (
id INTEGER PRIMARY KEY,
username TEXT NOT NULL,
display_name TEXT NOT NULL,
password_hash TEXT NULL,
about TEXT NULL,
website TEXT NULL,
mood TEXT NULL
)");
// settings table
$db->exec("CREATE TABLE IF NOT EXISTS settings (
id INTEGER PRIMARY KEY,
site_title TEXT NOT NULL,
site_description TEXT NULL,
base_url TEXT NOT NULL,
base_path TEXT NOT NULL,
items_per_page INTEGER NOT NULL,
css_id INTEGER NULL
)");
// css table
$db->exec("CREATE TABLE IF NOT EXISTS css (
id INTEGER PRIMARY KEY,
filename TEXT UNIQUE NOT NULL,
description TEXT NULL
)");
// mood table
$db->exec("CREATE TABLE IF NOT EXISTS emoji(
id INTEGER PRIMARY KEY,
emoji TEXT UNIQUE NOT NULL,
description TEXT NOT NULL
)");
} catch (PDOException $e) {
throw new SetupException(
"Table creation failed: " . $e->getMessage(),
'table_creation',
0,
$e
);
}
}
// make sure all tables exist
// attempt to create them if they don't
private function validateTables(): void {
$appTables = array();
$appTables[] = "settings";
$appTables[] = "user";
$appTables[] = "css";
$appTables[] = "emoji";
$db = self::get();
foreach ($appTables as $appTable){
$stmt = $db->prepare("SELECT name FROM sqlite_master WHERE type='table' AND name=?");
$stmt->execute([$appTable]);
if (!$stmt->fetch()){
// At least one table doesn't exist.
// Try creating tables (hacky, but I have 4 total tables)
// Will throw an exception if it fails
$this->createTables();
}
}
}
// make sure tables that need to be seeded have been
private function validateTableContents(): void {
$db = self::get();
// make sure required tables (user, settings) are populated
$user_count = (int) $db->query("SELECT COUNT(*) FROM user")->fetchColumn();
$settings_count = (int) $db->query("SELECT COUNT(*) FROM settings")->fetchColumn();
// If either required table has no records and we aren't on /admin,
// redirect to /admin to complete setup
if ($user_count === 0 || $settings_count === 0){
throw new SetupException(
"Required tables aren't populated. Please complete setup",
'table_contents',
);
};
}
}

46
src/Framework/Exception/SetupException.php Normal file
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@ -0,0 +1,46 @@
<?php
// Define an exception for validation errors
class SetupException extends Exception {
private $setupIssue;
public function __construct(string $message, string $setupIssue = '', int $code = 0, Throwable $previous = null) {
parent::__construct($message, $code, $previous);
$this->setupIssue = $setupIssue;
}
// Exception handler
// Exceptions don't generally define their own handlers,
// but this is a very specific case.
public function handle(){
switch ($this->setupIssue()){
case 'storage_missing':
case 'storage_permissions':
case 'directory_creation':
case 'directory_permissions':
case 'database_connection':
case 'load_classes':
case 'table_creation':
// Unrecoverable errors.
// Show error message and exit
http_response_code(500);
echo "<h1>Configuration Error</h1>";
echo "<p>" . Util::escape_html($this->setupIssue) . '-' . Util::escape_html($this->getMessage()) . "</p>";
exit;
case 'table_contents':
// Recoverable error.
// Redirect to setup if we aren't already headed there.
// NOTE: Just read directly from init.php instead of
// trying to use the config object. This is the initial
// setup. It shouldn't assume anything can be loaded.
$init = require APP_ROOT . '/config/init.php';
$currentPath = trim(parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH), '/');
if (strpos($currentPath, 'setup') === false) {
header('Location: ' . $init['base_path'] . 'setup');
exit;
}
}
}
}

91
src/Framework/Filesystem/Filesystem.php Normal file
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@ -0,0 +1,91 @@
<?php
// Validates that required directories exists
// and files have correct formats
class Filesystem {
public function validate(): void{
$this->validateStorageDir();
$this->validateStorageSubdirs();
$this->migrateTickFiles();
}
// Make sure the storage/ directory exists and is writable
private function validateStorageDir(): void{
if (!is_dir(STORAGE_DIR)) {
throw new SetupException(
STORAGE_DIR . "does not exist. Please check your installation.",
'storage_missing'
);
}
if (!is_writable(STORAGE_DIR)) {
throw new SetupException(
STORAGE_DIR . "is not writable. Exiting.",
'storage_permissions'
);
}
}
// validate that the required storage subdirectories exist
// attempt to create them if they don't
private function validateStorageSubdirs(): void {
$storageSubdirs = array();
$storageSubdirs[] = CSS_UPLOAD_DIR;
$storageSubdirs[] = DATA_DIR;
$storageSubdirs[] = TICKS_DIR;
foreach($storageSubdirs as $storageSubdir){
if (!is_dir($storageSubdir)) {
if (!mkdir($storageSubdir, 0770, true)) {
throw new SetupException(
"Failed to create required directory: $dir",
'directory_creation'
);
}
}
if (!is_writable($storageSubdir)) {
if (!chmod($storageSubdir, 0770)) {
throw new SetupException(
"Required directory is not writable: $dir",
'directory_permissions'
);
}
}
}
}
// TODO: Delete this sometime before 1.0
// Add mood to tick files
private function migrateTickFiles(): void {
$files = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator(TICKS_DIR, RecursiveDirectoryIterator::SKIP_DOTS)
);
foreach ($files as $file) {
if ($file->isFile() && str_ends_with($file->getFilename(), '.txt')) {
$this->migrateTickFile($file->getPathname());
}
}
}
// TODO: Delete this sometime before 1.0
// Add mood field to tick files if necessary
private function migrateTickFile($filepath): void {
$lines = file($filepath, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
$modified = false;
foreach ($lines as &$line) {
$fields = explode('|', $line);
if (count($fields) === 2) {
// Convert id|text to id|emoji|text
$line = $fields[0] . '||' . $fields[1];
$modified = true;
}
}
if ($modified) {
file_put_contents($filepath, implode("\n", $lines) . "\n");
// TODO: log properly
}
}
}

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storage/db/tkr.sqlite.bak
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