1b2ff23dff
resolveVariable() declares a string return type, but json_encode returns false on malformed UTF-8 (plausible for scraped feed/HTTP payloads), which throws a TypeError under strict_types and fails the node. Encode with JSON_PARTIAL_OUTPUT_ON_ERROR and fall back to an empty string.
65 lines
1.8 KiB
PHP
65 lines
1.8 KiB
PHP
<?php
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declare(strict_types=1);
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namespace App\Services\Automation;
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use Illuminate\Support\Carbon;
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class ExpressionResolver
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{
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public function resolve(string $template, array $context): string
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{
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return preg_replace_callback(
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'/\{\{\s*([a-zA-Z0-9_.]+)\s*\}\}/',
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fn ($matches) => $this->resolveVariable($matches[1], $context),
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$template,
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) ?? $template;
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}
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/**
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* Resolves `{{ ... }}` placeholders inside an already-decoded JSON structure
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* (arrays/strings), resolving only string leaves. The caller json_encodes the
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* result, so values are never string-interpolated into raw JSON — quotes,
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* `&`, newlines etc. in the data can't corrupt the payload.
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*
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* @param array<string, mixed> $context
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*/
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public function resolveStructured(mixed $value, array $context): mixed
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{
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if (is_string($value)) {
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return $this->resolve($value, $context);
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}
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if (is_array($value)) {
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return array_map(fn ($item) => $this->resolveStructured($item, $context), $value);
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}
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return $value;
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}
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private function resolveVariable(string $path, array $context): string
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{
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if ($path === 'now') {
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return Carbon::now()->toIso8601String();
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}
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if ($path === 'today') {
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return Carbon::today()->toDateString();
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}
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$value = data_get($context, $path);
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if ($value === null) {
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return '';
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}
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if (is_scalar($value)) {
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return (string) $value;
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}
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// json_encode returns false on malformed UTF-8 (plausible for scraped
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// feed/HTTP payloads); the method must still return a string.
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return json_encode($value, JSON_PARTIAL_OUTPUT_ON_ERROR) ?: '';
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}
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}
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