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<?php
declare(strict_types=1);
namespace Doctrine\Deprecations;
use Psr\Log\LoggerInterface;
use function array_key_exists;
use function array_reduce;
use function assert;
use function debug_backtrace;
use function sprintf;
use function str_replace;
use function strpos;
use function strrpos;
use function substr;
use function trigger_error;
use const DEBUG_BACKTRACE_IGNORE_ARGS;
use const DIRECTORY_SEPARATOR;
use const E_USER_DEPRECATED;
/**
* Manages Deprecation logging in different ways.
*
* By default triggered exceptions are not logged.
*
* To enable different deprecation logging mechanisms you can call the
* following methods:
*
* - Minimal collection of deprecations via getTriggeredDeprecations()
* \Doctrine\Deprecations\Deprecation::enableTrackingDeprecations();
*
* - Uses @trigger_error with E_USER_DEPRECATED
* \Doctrine\Deprecations\Deprecation::enableWithTriggerError();
*
* - Sends deprecation messages via a PSR-3 logger
* \Doctrine\Deprecations\Deprecation::enableWithPsrLogger($logger);
*
* Packages that trigger deprecations should use the `trigger()` or
* `triggerIfCalledFromOutside()` methods.
*/
class Deprecation
{
private const TYPE_NONE = 0;
private const TYPE_TRACK_DEPRECATIONS = 1;
private const TYPE_TRIGGER_ERROR = 2;
private const TYPE_PSR_LOGGER = 4;
/** @var int-mask-of<self::TYPE_*>|null */
private static $type;
/** @var LoggerInterface|null */
private static $logger;
/** @var array<string,bool> */
private static $ignoredPackages = [];
/** @var array<string,int> */
private static $triggeredDeprecations = [];
/** @var array<string,bool> */
private static $ignoredLinks = [];
/** @var bool */
private static $deduplication = true;
/**
* Trigger a deprecation for the given package and identfier.
*
* The link should point to a Github issue or Wiki entry detailing the
* deprecation. It is additionally used to de-duplicate the trigger of the
* same deprecation during a request.
*
* @param float|int|string $args
*/
public static function trigger(string $package, string $link, string $message, ...$args): void
{
$type = self::$type ?? self::getTypeFromEnv();
if ($type === self::TYPE_NONE) {
return;
}
if (isset(self::$ignoredLinks[$link])) {
return;
}
if (array_key_exists($link, self::$triggeredDeprecations)) {
self::$triggeredDeprecations[$link]++;
} else {
self::$triggeredDeprecations[$link] = 1;
}
if (self::$deduplication === true && self::$triggeredDeprecations[$link] > 1) {
return;
}
if (isset(self::$ignoredPackages[$package])) {
return;
}
$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
$message = sprintf($message, ...$args);
self::delegateTriggerToBackend($message, $backtrace, $link, $package);
}
/**
* Trigger a deprecation for the given package and identifier when called from outside.
*
* "Outside" means we assume that $package is currently installed as a
* dependency and the caller is not a file in that package. When $package
* is installed as a root package then deprecations triggered from the
* tests folder are also considered "outside".
*
* This deprecation method assumes that you are using Composer to install
* the dependency and are using the default /vendor/ folder and not a
* Composer plugin to change the install location. The assumption is also
* that $package is the exact composer packge name.
*
* Compared to {@link trigger()} this method causes some overhead when
* deprecation tracking is enabled even during deduplication, because it
* needs to call {@link debug_backtrace()}
*
* @param float|int|string $args
*/
public static function triggerIfCalledFromOutside(string $package, string $link, string $message, ...$args): void
{
$type = self::$type ?? self::getTypeFromEnv();
if ($type === self::TYPE_NONE) {
return;
}
$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
// first check that the caller is not from a tests folder, in which case we always let deprecations pass
if (isset($backtrace[1]['file'], $backtrace[0]['file']) && strpos($backtrace[1]['file'], DIRECTORY_SEPARATOR . 'tests' . DIRECTORY_SEPARATOR) === false) {
$path = DIRECTORY_SEPARATOR . 'vendor' . DIRECTORY_SEPARATOR . str_replace('/', DIRECTORY_SEPARATOR, $package) . DIRECTORY_SEPARATOR;
if (strpos($backtrace[0]['file'], $path) === false) {
return;
}
if (strpos($backtrace[1]['file'], $path) !== false) {
return;
}
}
if (isset(self::$ignoredLinks[$link])) {
return;
}
if (array_key_exists($link, self::$triggeredDeprecations)) {
self::$triggeredDeprecations[$link]++;
} else {
self::$triggeredDeprecations[$link] = 1;
}
if (self::$deduplication === true && self::$triggeredDeprecations[$link] > 1) {
return;
}
if (isset(self::$ignoredPackages[$package])) {
return;
}
$message = sprintf($message, ...$args);
self::delegateTriggerToBackend($message, $backtrace, $link, $package);
}
/** @param list<array{function: string, line?: int, file?: string, class?: class-string, type?: string, args?: mixed[], object?: object}> $backtrace */
private static function delegateTriggerToBackend(string $message, array $backtrace, string $link, string $package): void
{
$type = self::$type ?? self::getTypeFromEnv();
if (($type & self::TYPE_PSR_LOGGER) > 0) {
$context = [
'file' => $backtrace[0]['file'] ?? null,
'line' => $backtrace[0]['line'] ?? null,
'package' => $package,
'link' => $link,
];
assert(self::$logger !== null);
self::$logger->notice($message, $context);
}
if (! (($type & self::TYPE_TRIGGER_ERROR) > 0)) {
return;
}
$message .= sprintf(
' (%s:%d called by %s:%d, %s, package %s)',
self::basename($backtrace[0]['file'] ?? 'native code'),
$backtrace[0]['line'] ?? 0,
self::basename($backtrace[1]['file'] ?? 'native code'),
$backtrace[1]['line'] ?? 0,
$link,
$package
);
@trigger_error($message, E_USER_DEPRECATED);
}
/**
* A non-local-aware version of PHPs basename function.
*/
private static function basename(string $filename): string
{
$pos = strrpos($filename, DIRECTORY_SEPARATOR);
if ($pos === false) {
return $filename;
}
return substr($filename, $pos + 1);
}
public static function enableTrackingDeprecations(): void
{
self::$type = self::$type ?? self::getTypeFromEnv();
self::$type |= self::TYPE_TRACK_DEPRECATIONS;
}
public static function enableWithTriggerError(): void
{
self::$type = self::$type ?? self::getTypeFromEnv();
self::$type |= self::TYPE_TRIGGER_ERROR;
}
public static function enableWithPsrLogger(LoggerInterface $logger): void
{
self::$type = self::$type ?? self::getTypeFromEnv();
self::$type |= self::TYPE_PSR_LOGGER;
self::$logger = $logger;
}
public static function withoutDeduplication(): void
{
self::$deduplication = false;
}
public static function disable(): void
{
self::$type = self::TYPE_NONE;
self::$logger = null;
self::$deduplication = true;
self::$ignoredLinks = [];
foreach (self::$triggeredDeprecations as $link => $count) {
self::$triggeredDeprecations[$link] = 0;
}
}
public static function ignorePackage(string $packageName): void
{
self::$ignoredPackages[$packageName] = true;
}
public static function ignoreDeprecations(string ...$links): void
{
foreach ($links as $link) {
self::$ignoredLinks[$link] = true;
}
}
public static function getUniqueTriggeredDeprecationsCount(): int
{
return array_reduce(self::$triggeredDeprecations, static function (int $carry, int $count) {
return $carry + $count;
}, 0);
}
/**
* Returns each triggered deprecation link identifier and the amount of occurrences.
*
* @return array<string,int>
*/
public static function getTriggeredDeprecations(): array
{
return self::$triggeredDeprecations;
}
/** @return int-mask-of<self::TYPE_*> */
private static function getTypeFromEnv(): int
{
switch ($_SERVER['DOCTRINE_DEPRECATIONS'] ?? $_ENV['DOCTRINE_DEPRECATIONS'] ?? null) {
case 'trigger':
self::$type = self::TYPE_TRIGGER_ERROR;
break;
case 'track':
self::$type = self::TYPE_TRACK_DEPRECATIONS;
break;
default:
self::$type = self::TYPE_NONE;
break;
}
return self::$type;
}
}