diff options
Diffstat (limited to 'main/app/sprinkles/account/src/Authorize/ParserNodeFunctionEvaluator.php')
| -rw-r--r-- | main/app/sprinkles/account/src/Authorize/ParserNodeFunctionEvaluator.php | 189 |
1 files changed, 0 insertions, 189 deletions
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;
- }
-}
|