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wip: prepared param type validation #65

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wip: prepared param type validation #65

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93 changes: 93 additions & 0 deletions .phpstan-dba.cache
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -430,6 +430,99 @@
)),
),
),
'SELECT email, adaid FROM ada WHERE adaid = \'hello world\'' =>
array (
'error' => NULL,
'result' =>
array (
3 =>
PHPStan\Type\Constant\ConstantArrayType::__set_state(array(
'keyType' =>
PHPStan\Type\UnionType::__set_state(array(
'types' =>
array (
0 =>
PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
'value' => 0,
)),
1 =>
PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
'value' => 1,
)),
2 =>
PHPStan\Type\Constant\ConstantStringType::__set_state(array(
'value' => 'adaid',
'isClassString' => false,
)),
3 =>
PHPStan\Type\Constant\ConstantStringType::__set_state(array(
'value' => 'email',
'isClassString' => false,
)),
),
)),
'itemType' =>
PHPStan\Type\UnionType::__set_state(array(
'types' =>
array (
0 =>
PHPStan\Type\IntegerRangeType::__set_state(array(
'min' => 0,
'max' => 4294967295,
)),
1 =>
PHPStan\Type\StringType::__set_state(array(
)),
),
)),
'allArrays' => NULL,
'keyTypes' =>
array (
0 =>
PHPStan\Type\Constant\ConstantStringType::__set_state(array(
'value' => 'email',
'isClassString' => false,
)),
1 =>
PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
'value' => 0,
)),
2 =>
PHPStan\Type\Constant\ConstantStringType::__set_state(array(
'value' => 'adaid',
'isClassString' => false,
)),
3 =>
PHPStan\Type\Constant\ConstantIntegerType::__set_state(array(
'value' => 1,
)),
),
'valueTypes' =>
array (
0 =>
PHPStan\Type\StringType::__set_state(array(
)),
1 =>
PHPStan\Type\StringType::__set_state(array(
)),
2 =>
PHPStan\Type\IntegerRangeType::__set_state(array(
'min' => 0,
'max' => 4294967295,
)),
3 =>
PHPStan\Type\IntegerRangeType::__set_state(array(
'min' => 0,
'max' => 4294967295,
)),
),
'nextAutoIndex' => 2,
'optionalKeys' =>
array (
),
)),
),
),
'SELECT email, adaid FROM ada WHERE adaid = 1' =>
array (
'error' => NULL,
Expand Down
80 changes: 76 additions & 4 deletions src/Rules/PdoStatementExecuteErrorMethodRule.php
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Original file line number Diff line number Diff line change
Expand Up @@ -6,15 +6,21 @@

use PDOStatement;
use PhpParser\Node;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\MethodCall;
use PHPStan\Analyser\Scope;
use PHPStan\Reflection\MethodReflection;
use PHPStan\Rules\Rule;
use PHPStan\Rules\RuleError;
use PHPStan\Rules\RuleErrorBuilder;
use PHPStan\ShouldNotHappenException;
use PHPStan\Type\Constant\ConstantArrayType;
use PHPStan\Type\Constant\ConstantStringType;
use PHPStan\Type\Type;
use PHPStan\Type\VerbosityLevel;
use staabm\PHPStanDba\PdoReflection\PdoStatementReflection;
use staabm\PHPStanDba\QueryReflection\QueryReflection;
use staabm\PHPStanDba\QueryReflection\QueryReflector;

/**
* @implements Rule<MethodCall>
Expand Down Expand Up @@ -81,13 +87,13 @@ private function checkErrors(MethodReflection $methodReflection, MethodCall $met
];
}

return $this->checkParameterValues($methodCall, $scope, $queryString, $placeholderCount);
return $this->checkParameterValues($methodCall, $scope, $queryExpr, $queryString, $placeholderCount);
}

/**
* @return RuleError[]
*/
private function checkParameterValues(MethodCall $methodCall, Scope $scope, string $queryString, int $placeholderCount): array
private function checkParameterValues(MethodCall $methodCall, Scope $scope, Expr $queryExpr, string $queryString, int $placeholderCount): array
{
$queryReflection = new QueryReflection();
$args = $methodCall->getArgs();
Expand All @@ -97,8 +103,11 @@ private function checkParameterValues(MethodCall $methodCall, Scope $scope, stri
if (null === $parameters) {
return [];
}
$parameterCount = \count($parameters);
if (!$parameterTypes instanceof ConstantArrayType) {
throw new ShouldNotHappenException();
}

$parameterCount = \count($parameters);
if ($parameterCount !== $placeholderCount) {
if (1 === $parameterCount) {
return [
Expand All @@ -125,9 +134,72 @@ private function checkParameterValues(MethodCall $methodCall, Scope $scope, stri
}
}

return $errors;
if ($errors != []) {
return $errors;
}

return $this->checkParameterTypes($methodCall, $queryExpr, $parameterTypes, $scope);
}

/**
* @return RuleError[]
*/
private function checkParameterTypes(MethodCall $methodCall, Expr $queryExpr, ConstantArrayType $parameterTypes, Scope $scope): array
{
$queryReflection = new QueryReflection();
$queryString = $queryReflection->resolvePreparedQueryString($queryExpr, $parameterTypes, $scope);
if (null === $queryString) {
return [];
}

$resultType = $queryReflection->getResultType($queryString, QueryReflector::FETCH_TYPE_ASSOC);
if (!$resultType instanceof ConstantArrayType) {
return [];
}

var_dump($queryString);
foreach ($resultType->getKeyTypes() as $keyType) {
var_dump($keyType->describe(VerbosityLevel::value()));
}

$errors = [];
$keyTypes = $parameterTypes->getKeyTypes();
$valueTypes = $parameterTypes->getValueTypes();

foreach ($keyTypes as $i => $keyType) {
if (!$keyType instanceof ConstantStringType) {
continue;
}

$columnName = $keyType->getValue();
ltrim($columnName, ':');

var_dump($keyType->describe(VerbosityLevel::precise()));
var_dump($resultType->hasOffsetValueType($keyType)->describe());
if (!$resultType->hasOffsetValueType($keyType)->yes()) {
// we only know types of columns which are selected.
continue;
}

var_dump($resultType->getOffsetValueType($keyType)->describe(VerbosityLevel::precise()));
var_dump($valueTypes[$i]->describe(VerbosityLevel::precise()));
if ($resultType->getOffsetValueType($keyType)->isSuperTypeOf($valueTypes[$i])->yes()) {
continue;
}

$errors[] = RuleErrorBuilder::message(
sprintf(
'Value %s with type %s is given to execute(), but the query expects %s.',
$placeholderName,
$resultType->getOffsetValueType($keyType)->describe(VerbosityLevel::precise()),
$valueTypes[$i]->describe(VerbosityLevel::precise())
)
)->line($methodCall->getLine())->build();
}

return $errors;
}

/**
* @return 0|positive-int
*/
Expand Down
2 changes: 0 additions & 2 deletions tests/PdoStatementExecuteErrorMethodRuleTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,6 @@ public function testSyntaxErrorInQueryRule(): void
'Value :wrongParamName is given to execute(), but the query does not containt this placeholder.',
15,
],
/*
[
'Query expects placeholder :adaid, but it is missing from values given to execute().',
18,
Expand All @@ -46,7 +45,6 @@ public function testSyntaxErrorInQueryRule(): void
'Value :wrongParamValue is given to execute(), but the query does not containt this placeholder.',
18,
],
*/
[
'Query expects 1 placeholders, but no values are given to execute().',
21,
Expand Down
4 changes: 2 additions & 2 deletions tests/data/pdo-stmt-execute-error.php
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Original file line number Diff line number Diff line change
Expand Up @@ -14,8 +14,8 @@ public function errors(PDO $pdo)
$stmt = $pdo->prepare('SELECT email, adaid FROM ada WHERE adaid = :adaid');
$stmt->execute([':wrongParamName' => 1]);

// $stmt = $pdo->prepare('SELECT email, adaid FROM ada WHERE adaid = :adaid');
// $stmt->execute([':adaid' => 'hello world']); // wrong param type
$stmt = $pdo->prepare('SELECT email, adaid FROM ada WHERE adaid = :adaid');
$stmt->execute([':adaid' => 'hello world']); // wrong param type

$stmt = $pdo->prepare('SELECT email, adaid FROM ada WHERE adaid = :adaid');
$stmt->execute(); // missing parameter
Expand Down