bug #35464 [ErrorHandler] Add debug argument to decide whether debug page is shown or not (yceruto)

This PR was merged into the 4.4 branch.

Discussion
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[ErrorHandler] Add debug argument to decide whether debug page is shown or not

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Fix #35448
| License       | MIT
| Doc PR        | -

This ensures that the debug page (with stack trace) won't be (by default) displayed in non-CLI context when an early error occurs (after FB::boot()) in non-debug mode (prod). And `Debug::enable()` will enable it explicitly.

Commits
-------

cf80224589 Added debug argument to decide if debug page should be shown or not

Author: nicolas-grekas

Debug.php

@@ -31,6 +31,6 @@ public static function enable(): ErrorHandler
 
         DebugClassLoader::enable();
 
-        return ErrorHandler::register(new ErrorHandler(new BufferingLogger()));
+        return ErrorHandler::register(new ErrorHandler(new BufferingLogger(), true));
     }
 }

ErrorHandler.php

@@ -92,6 +92,7 @@ class ErrorHandler
     private $screamedErrors = 0x55; // E_ERROR + E_CORE_ERROR + E_COMPILE_ERROR + E_PARSE
     private $loggedErrors = 0;
     private $traceReflector;
+    private $debug;
 
     private $isRecursive = 0;
     private $isRoot = false;
@@ -180,14 +181,15 @@ public static function call(callable $function, ...$arguments)
         }
     }
 
-    public function __construct(BufferingLogger $bootstrappingLogger = null)
+    public function __construct(BufferingLogger $bootstrappingLogger = null, bool $debug = false)
     {
         if ($bootstrappingLogger) {
             $this->bootstrappingLogger = $bootstrappingLogger;
             $this->setDefaultLogger($bootstrappingLogger);
         }
         $this->traceReflector = new \ReflectionProperty('Exception', 'trace');
         $this->traceReflector->setAccessible(true);
+        $this->debug = $debug;
     }
 
     /**
@@ -697,7 +699,7 @@ public static function handleFatalError(array $error = null): void
      */
     private function renderException(\Throwable $exception): void
     {
-        $renderer = \in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) ? new CliErrorRenderer() : new HtmlErrorRenderer(0 !== $this->scopedErrors);
+        $renderer = \in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) ? new CliErrorRenderer() : new HtmlErrorRenderer($this->debug);
 
         $exception = $renderer->render($exception);