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Validate environment variable keys

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Andras Bacsai
2026-06-25 18:19:58 +02:00
parent 3f0a0f7a0d
commit 87d4744390
9 changed files with 221 additions and 30 deletions
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app/Support/ValidationPatterns.php
+3 -3
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@@ -95,9 +95,9 @@ class ValidationPatterns
/**
* Pattern for Docker-compatible environment variable keys.
* Docker environment entries are KEY=value strings, so keys must be non-empty and cannot contain '=' or NUL.
* Environment variable keys are later interpolated into shell commands as Docker build args, so only shell-safe identifier characters are allowed.
*/
public const ENVIRONMENT_VARIABLE_KEY_PATTERN = '/\A[^=\x00]+\z/u';
public const ENVIRONMENT_VARIABLE_KEY_PATTERN = '/\A[A-Za-z_][A-Za-z0-9_.]*\z/u';
/**
* Pattern for SQL-safe unquoted database identifiers (usernames, database names).
@@ -164,7 +164,7 @@ class ValidationPatterns
public static function environmentVariableKeyMessages(string $field = 'key', string $label = 'key'): array
{
return [
"{$field}.regex" => "The {$label} must be a non-empty Docker-compatible environment variable key and cannot contain '=' or NUL characters.",
"{$field}.regex" => "The {$label} must start with a letter or underscore and may only contain letters, numbers, underscores, and dots.",
"{$field}.max" => "The {$label} may not be greater than :max characters.",
];
}