Initial commit

pma/vendor/symfony/dependency-injection/ParameterBag/EnvPlaceholderParameterBag.php

@@ -0,0 +1,173 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\DependencyInjection\ParameterBag;
+
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+class EnvPlaceholderParameterBag extends ParameterBag
+{
+    private $envPlaceholderUniquePrefix;
+    private $envPlaceholders = [];
+    private $unusedEnvPlaceholders = [];
+    private $providedTypes = [];
+
+    private static $counter = 0;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get($name)
+    {
+        if (0 === strpos($name, 'env(') && ')' === substr($name, -1) && 'env()' !== $name) {
+            $env = substr($name, 4, -1);
+
+            if (isset($this->envPlaceholders[$env])) {
+                foreach ($this->envPlaceholders[$env] as $placeholder) {
+                    return $placeholder; // return first result
+                }
+            }
+            if (isset($this->unusedEnvPlaceholders[$env])) {
+                foreach ($this->unusedEnvPlaceholders[$env] as $placeholder) {
+                    return $placeholder; // return first result
+                }
+            }
+            if (!preg_match('/^(?:\w*+:)*+\w++$/', $env)) {
+                throw new InvalidArgumentException(sprintf('Invalid "%s" name: only "word" characters are allowed.', $name));
+            }
+
+            if ($this->has($name)) {
+                $defaultValue = parent::get($name);
+
+                if (null !== $defaultValue && !is_scalar($defaultValue)) { // !is_string in 5.0
+                    //throw new RuntimeException(sprintf('The default value of an env() parameter must be a string or null, but "%s" given to "%s".', \gettype($defaultValue), $name));
+                    throw new RuntimeException(sprintf('The default value of an env() parameter must be scalar or null, but "%s" given to "%s".', \gettype($defaultValue), $name));
+                } elseif (is_scalar($defaultValue) && !\is_string($defaultValue)) {
+                    @trigger_error(sprintf('A non-string default value of an env() parameter is deprecated since 4.3, cast "%s" to string instead.', $name), \E_USER_DEPRECATED);
+                }
+            }
+
+            $uniqueName = md5($name.'_'.self::$counter++);
+            $placeholder = sprintf('%s_%s_%s', $this->getEnvPlaceholderUniquePrefix(), str_replace(':', '_', $env), $uniqueName);
+            $this->envPlaceholders[$env][$placeholder] = $placeholder;
+
+            return $placeholder;
+        }
+
+        return parent::get($name);
+    }
+
+    /**
+     * Gets the common env placeholder prefix for env vars created by this bag.
+     */
+    public function getEnvPlaceholderUniquePrefix(): string
+    {
+        if (null === $this->envPlaceholderUniquePrefix) {
+            $reproducibleEntropy = unserialize(serialize($this->parameters));
+            array_walk_recursive($reproducibleEntropy, function (&$v) { $v = null; });
+            $this->envPlaceholderUniquePrefix = 'env_'.substr(md5(serialize($reproducibleEntropy)), -16);
+        }
+
+        return $this->envPlaceholderUniquePrefix;
+    }
+
+    /**
+     * Returns the map of env vars used in the resolved parameter values to their placeholders.
+     *
+     * @return string[][] A map of env var names to their placeholders
+     */
+    public function getEnvPlaceholders()
+    {
+        return $this->envPlaceholders;
+    }
+
+    public function getUnusedEnvPlaceholders(): array
+    {
+        return $this->unusedEnvPlaceholders;
+    }
+
+    public function clearUnusedEnvPlaceholders()
+    {
+        $this->unusedEnvPlaceholders = [];
+    }
+
+    /**
+     * Merges the env placeholders of another EnvPlaceholderParameterBag.
+     */
+    public function mergeEnvPlaceholders(self $bag)
+    {
+        if ($newPlaceholders = $bag->getEnvPlaceholders()) {
+            $this->envPlaceholders += $newPlaceholders;
+
+            foreach ($newPlaceholders as $env => $placeholders) {
+                $this->envPlaceholders[$env] += $placeholders;
+            }
+        }
+
+        if ($newUnusedPlaceholders = $bag->getUnusedEnvPlaceholders()) {
+            $this->unusedEnvPlaceholders += $newUnusedPlaceholders;
+
+            foreach ($newUnusedPlaceholders as $env => $placeholders) {
+                $this->unusedEnvPlaceholders[$env] += $placeholders;
+            }
+        }
+    }
+
+    /**
+     * Maps env prefixes to their corresponding PHP types.
+     */
+    public function setProvidedTypes(array $providedTypes)
+    {
+        $this->providedTypes = $providedTypes;
+    }
+
+    /**
+     * Gets the PHP types corresponding to env() parameter prefixes.
+     *
+     * @return string[][]
+     */
+    public function getProvidedTypes()
+    {
+        return $this->providedTypes;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function resolve()
+    {
+        if ($this->resolved) {
+            return;
+        }
+        parent::resolve();
+
+        foreach ($this->envPlaceholders as $env => $placeholders) {
+            if (!$this->has($name = "env($env)")) {
+                continue;
+            }
+            if (is_numeric($default = $this->parameters[$name])) {
+                if (!\is_string($default)) {
+                    @trigger_error(sprintf('A non-string default value of env parameter "%s" is deprecated since 4.3, cast it to string instead.', $env), \E_USER_DEPRECATED);
+                }
+                $this->parameters[$name] = (string) $default;
+            } elseif (null !== $default && !is_scalar($default)) { // !is_string in 5.0
+                //throw new RuntimeException(sprintf('The default value of env parameter "%s" must be a string or null, "%s" given.', $env, \gettype($default)));
+                throw new RuntimeException(sprintf('The default value of env parameter "%s" must be scalar or null, "%s" given.', $env, \gettype($default)));
+            } elseif (is_scalar($default) && !\is_string($default)) {
+                @trigger_error(sprintf('A non-string default value of env parameter "%s" is deprecated since 4.3, cast it to string instead.', $env), \E_USER_DEPRECATED);
+            }
+        }
+    }
+}