N°8771 - Add Symfony form component to iTop core (#760)

- Add Symfony Form Component
- Add Symfony CSRF security component
- Add iTop default form template
- Add Twig debug extension to Twig Environment
- Add iTop abstract controller facility to get form builder
- Add Twig filter to make trans an alias of dict_s filter

lib/symfony/security-core/Authorization/Strategy/AccessDecisionStrategyInterface.php

@@ -0,0 +1,25 @@
+<?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\Security\Core\Authorization\Strategy;
+
+/**
+ * A strategy for turning a stream of votes into a final decision.
+ *
+ * @author Alexander M. Turek <me@derrabus.de>
+ */
+interface AccessDecisionStrategyInterface
+{
+    /**
+     * @param \Traversable<int> $results
+     */
+    public function decide(\Traversable $results): bool;
+}

lib/symfony/security-core/Authorization/Strategy/AffirmativeStrategy.php

@@ -0,0 +1,58 @@
+<?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\Security\Core\Authorization\Strategy;
+
+use Symfony\Component\Security\Core\Authorization\Voter\VoterInterface;
+
+/**
+ * Grants access if any voter returns an affirmative response.
+ *
+ * If all voters abstained from voting, the decision will be based on the
+ * allowIfAllAbstainDecisions property value (defaults to false).
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Alexander M. Turek <me@derrabus.de>
+ */
+final class AffirmativeStrategy implements AccessDecisionStrategyInterface, \Stringable
+{
+    private bool $allowIfAllAbstainDecisions;
+
+    public function __construct(bool $allowIfAllAbstainDecisions = false)
+    {
+        $this->allowIfAllAbstainDecisions = $allowIfAllAbstainDecisions;
+    }
+
+    public function decide(\Traversable $results): bool
+    {
+        $deny = 0;
+        foreach ($results as $result) {
+            if (VoterInterface::ACCESS_GRANTED === $result) {
+                return true;
+            }
+
+            if (VoterInterface::ACCESS_DENIED === $result) {
+                ++$deny;
+            }
+        }
+
+        if ($deny > 0) {
+            return false;
+        }
+
+        return $this->allowIfAllAbstainDecisions;
+    }
+
+    public function __toString(): string
+    {
+        return 'affirmative';
+    }
+}

lib/symfony/security-core/Authorization/Strategy/ConsensusStrategy.php

@@ -0,0 +1,75 @@
+<?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\Security\Core\Authorization\Strategy;
+
+use Symfony\Component\Security\Core\Authorization\Voter\VoterInterface;
+
+/**
+ * Grants access if there is consensus of granted against denied responses.
+ *
+ * Consensus means majority-rule (ignoring abstains) rather than unanimous
+ * agreement (ignoring abstains). If you require unanimity, see
+ * UnanimousBased.
+ *
+ * If there were an equal number of grant and deny votes, the decision will
+ * be based on the allowIfEqualGrantedDeniedDecisions property value
+ * (defaults to true).
+ *
+ * If all voters abstained from voting, the decision will be based on the
+ * allowIfAllAbstainDecisions property value (defaults to false).
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Alexander M. Turek <me@derrabus.de>
+ */
+final class ConsensusStrategy implements AccessDecisionStrategyInterface, \Stringable
+{
+    private bool $allowIfAllAbstainDecisions;
+    private bool $allowIfEqualGrantedDeniedDecisions;
+
+    public function __construct(bool $allowIfAllAbstainDecisions = false, bool $allowIfEqualGrantedDeniedDecisions = true)
+    {
+        $this->allowIfAllAbstainDecisions = $allowIfAllAbstainDecisions;
+        $this->allowIfEqualGrantedDeniedDecisions = $allowIfEqualGrantedDeniedDecisions;
+    }
+
+    public function decide(\Traversable $results): bool
+    {
+        $grant = 0;
+        $deny = 0;
+        foreach ($results as $result) {
+            if (VoterInterface::ACCESS_GRANTED === $result) {
+                ++$grant;
+            } elseif (VoterInterface::ACCESS_DENIED === $result) {
+                ++$deny;
+            }
+        }
+
+        if ($grant > $deny) {
+            return true;
+        }
+
+        if ($deny > $grant) {
+            return false;
+        }
+
+        if ($grant > 0) {
+            return $this->allowIfEqualGrantedDeniedDecisions;
+        }
+
+        return $this->allowIfAllAbstainDecisions;
+    }
+
+    public function __toString(): string
+    {
+        return 'consensus';
+    }
+}

lib/symfony/security-core/Authorization/Strategy/PriorityStrategy.php

@@ -0,0 +1,54 @@
+<?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\Security\Core\Authorization\Strategy;
+
+use Symfony\Component\Security\Core\Authorization\Voter\VoterInterface;
+
+/**
+ * Grant or deny access depending on the first voter that does not abstain.
+ * The priority of voters can be used to overrule a decision.
+ *
+ * If all voters abstained from voting, the decision will be based on the
+ * allowIfAllAbstainDecisions property value (defaults to false).
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Alexander M. Turek <me@derrabus.de>
+ */
+final class PriorityStrategy implements AccessDecisionStrategyInterface, \Stringable
+{
+    private bool $allowIfAllAbstainDecisions;
+
+    public function __construct(bool $allowIfAllAbstainDecisions = false)
+    {
+        $this->allowIfAllAbstainDecisions = $allowIfAllAbstainDecisions;
+    }
+
+    public function decide(\Traversable $results): bool
+    {
+        foreach ($results as $result) {
+            if (VoterInterface::ACCESS_GRANTED === $result) {
+                return true;
+            }
+
+            if (VoterInterface::ACCESS_DENIED === $result) {
+                return false;
+            }
+        }
+
+        return $this->allowIfAllAbstainDecisions;
+    }
+
+    public function __toString(): string
+    {
+        return 'priority';
+    }
+}

lib/symfony/security-core/Authorization/Strategy/UnanimousStrategy.php

@@ -0,0 +1,59 @@
+<?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\Security\Core\Authorization\Strategy;
+
+use Symfony\Component\Security\Core\Authorization\Voter\VoterInterface;
+
+/**
+ * Grants access if only grant (or abstain) votes were received.
+ *
+ * If all voters abstained from voting, the decision will be based on the
+ * allowIfAllAbstainDecisions property value (defaults to false).
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Alexander M. Turek <me@derrabus.de>
+ */
+final class UnanimousStrategy implements AccessDecisionStrategyInterface, \Stringable
+{
+    private bool $allowIfAllAbstainDecisions;
+
+    public function __construct(bool $allowIfAllAbstainDecisions = false)
+    {
+        $this->allowIfAllAbstainDecisions = $allowIfAllAbstainDecisions;
+    }
+
+    public function decide(\Traversable $results): bool
+    {
+        $grant = 0;
+        foreach ($results as $result) {
+            if (VoterInterface::ACCESS_DENIED === $result) {
+                return false;
+            }
+
+            if (VoterInterface::ACCESS_GRANTED === $result) {
+                ++$grant;
+            }
+        }
+
+        // no deny votes
+        if ($grant > 0) {
+            return true;
+        }
+
+        return $this->allowIfAllAbstainDecisions;
+    }
+
+    public function __toString(): string
+    {
+        return 'unanimous';
+    }
+}