From 15793496e8d56769c792cf39673c6e6dea3ec4d9 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Thu, 28 Jun 2018 21:15:57 +0200
Subject: Preparing for complete rewrite..

---
 .../src/Authorize/ParserNodeFunctionEvaluator.php  | 189 ---------------------
 1 file changed, 189 deletions(-)
 delete mode 100644 main/app/sprinkles/account/src/Authorize/ParserNodeFunctionEvaluator.php

(limited to 'main/app/sprinkles/account/src/Authorize/ParserNodeFunctionEvaluator.php')

diff --git a/main/app/sprinkles/account/src/Authorize/ParserNodeFunctionEvaluator.php b/main/app/sprinkles/account/src/Authorize/ParserNodeFunctionEvaluator.php
deleted file mode 100644
index af26d9a..0000000
--- a/main/app/sprinkles/account/src/Authorize/ParserNodeFunctionEvaluator.php
+++ /dev/null
@@ -1,189 +0,0 @@
-<?php
-/**
- * UserFrosting (http://www.userfrosting.com)
- *
- * @link      https://github.com/userfrosting/UserFrosting
- * @license   https://github.com/userfrosting/UserFrosting/blob/master/licenses/UserFrosting.md (MIT License)
- */
-
-namespace UserFrosting\Sprinkle\Account\Authorize;
-
-use Monolog\Logger;
-use PhpParser\Node;
-use PhpParser\NodeVisitorAbstract;
-use PhpParser\PrettyPrinter\Standard as StandardPrettyPrinter;
-
-/**
- * ParserNodeFunctionEvaluator class
- *
- * This class parses access control condition expressions.
- *
- * @author Alex Weissman (https://alexanderweissman.com)
- * @see http://www.userfrosting.com/components/#authorization
- */
-class ParserNodeFunctionEvaluator extends NodeVisitorAbstract
-{
-
-    /**
-     * @var array[callable] An array of callback functions to be used when evaluating a condition expression.
-     */
-    protected $callbacks;
-    /**
-     * @var \PhpParser\PrettyPrinter\Standard The PrettyPrinter object to use (initialized in the ctor)
-     */
-    protected $prettyPrinter;
-    /**
-     * @var array The parameters to be used when evaluating the methods in the condition expression, as an array.
-     */
-    protected $params = [];
-
-    /**
-     * @var Logger
-     */
-    protected $logger;
-
-    /**
-     * @var bool Set to true if you want debugging information printed to the auth log.
-     */
-    protected $debug;
-
-    /**
-     * Create a new ParserNodeFunctionEvaluator object.
-     *
-     * @param array $params The parameters to be used when evaluating the methods in the condition expression, as an array.
-     * @param Logger $logger A Monolog logger, used to dump debugging info for authorization evaluations.
-     * @param bool $debug Set to true if you want debugging information printed to the auth log.
-     */
-    public function __construct($callbacks, $logger, $debug = FALSE) {
-        $this->callbacks = $callbacks;
-        $this->prettyPrinter = new StandardPrettyPrinter;
-        $this->logger = $logger;
-        $this->debug = $debug;
-        $this->params = [];
-    }
-
-    public function leaveNode(Node $node) {
-        // Look for function calls
-        if ($node instanceof \PhpParser\Node\Expr\FuncCall) {
-            $eval = new \PhpParser\Node\Scalar\LNumber;
-
-            // Get the method name
-            $callbackName = $node->name->toString();
-            // Get the method arguments
-            $argNodes = $node->args;
-
-            $args = [];
-            $argsInfo = [];
-            foreach ($argNodes as $arg) {
-                $argString = $this->prettyPrinter->prettyPrintExpr($arg->value);
-
-                // Debugger info
-                $currentArgInfo = [
-                    'expression' => $argString
-                ];
-                // Resolve parameter placeholders ('variable' names (either single-word or array-dot identifiers))
-                if (($arg->value instanceof \PhpParser\Node\Expr\BinaryOp\Concat) || ($arg->value instanceof \PhpParser\Node\Expr\ConstFetch)) {
-                    $value = $this->resolveParamPath($argString);
-                    $currentArgInfo['type'] = "parameter";
-                    $currentArgInfo['resolved_value'] = $value;
-                    // Resolve arrays
-                } else if ($arg->value instanceof \PhpParser\Node\Expr\Array_) {
-                    $value = $this->resolveArray($arg);
-                    $currentArgInfo['type'] = "array";
-                    $currentArgInfo['resolved_value'] = print_r($value, TRUE);
-                    // Resolve strings
-                } else if ($arg->value instanceof \PhpParser\Node\Scalar\String_) {
-                    $value = $arg->value->value;
-                    $currentArgInfo['type'] = "string";
-                    $currentArgInfo['resolved_value'] = $value;
-                    // Resolve numbers
-                } else if ($arg->value instanceof \PhpParser\Node\Scalar\DNumber) {
-                    $value = $arg->value->value;
-                    $currentArgInfo['type'] = "float";
-                    $currentArgInfo['resolved_value'] = $value;
-                } else if ($arg->value instanceof \PhpParser\Node\Scalar\LNumber) {
-                    $value = $arg->value->value;
-                    $currentArgInfo['type'] = "integer";
-                    $currentArgInfo['resolved_value'] = $value;
-                    // Anything else is simply interpreted as its literal string value
-                } else {
-                    $value = $argString;
-                    $currentArgInfo['type'] = "unknown";
-                    $currentArgInfo['resolved_value'] = $value;
-                }
-
-                $args[] = $value;
-                $argsInfo[] = $currentArgInfo;
-            }
-
-            if ($this->debug) {
-                if (count($args)) {
-                    $this->logger->debug("Evaluating callback '$callbackName' on: ", $argsInfo);
-                } else {
-                    $this->logger->debug("Evaluating callback '$callbackName'...");
-                }
-            }
-
-            // Call the specified access condition callback with the specified arguments.
-            if (isset($this->callbacks[$callbackName]) && is_callable($this->callbacks[$callbackName])) {
-                $result = call_user_func_array($this->callbacks[$callbackName], $args);
-            } else {
-                throw new AuthorizationException("Authorization failed: Access condition method '$callbackName' does not exist.");
-            }
-
-            if ($this->debug) {
-                $this->logger->debug("Result: " . ($result ? "1" : "0"));
-            }
-
-            return new \PhpParser\Node\Scalar\LNumber($result ? "1" : "0");
-        }
-    }
-
-    public function setParams($params) {
-        $this->params = $params;
-    }
-
-    /**
-     * Resolve an array expression in a condition expression into an actual array.
-     *
-     * @param string $arg the array, represented as a string.
-     * @return array[mixed] the array, as a plain ol' PHP array.
-     */
-    private function resolveArray($arg) {
-        $arr = [];
-        $items = (array)$arg->value->items;
-        foreach ($items as $item) {
-            if ($item->key) {
-                $arr[$item->key] = $item->value->value;
-            } else {
-                $arr[] = $item->value->value;
-            }
-        }
-        return $arr;
-    }
-
-    /**
-     * Resolve a parameter path (e.g. "user.id", "post", etc) into its value.
-     *
-     * @param string $path the name of the parameter to resolve, based on the parameters set in this object.
-     * @throws Exception the path could not be resolved.  Path is malformed or key does not exist.
-     * @return mixed the value of the specified parameter.
-     */
-    private function resolveParamPath($path) {
-        $pathTokens = explode(".", $path);
-        $value = $this->params;
-        foreach ($pathTokens as $token) {
-            $token = trim($token);
-            if (is_array($value) && isset($value[$token])) {
-                $value = $value[$token];
-                continue;
-            } else if (is_object($value) && isset($value->$token)) {
-                $value = $value->$token;
-                continue;
-            } else {
-                throw new AuthorizationException("Cannot resolve the path \"$path\".  Error at token \"$token\".");
-            }
-        }
-        return $value;
-    }
-}
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