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WalkthroughThis pull request introduces modifications to email header handling in the Mailtrap library. The changes focus on preventing naming conflicts with reserved Symfony header names by adding a prefix to custom and template variable headers. A new Changes
Sequence DiagramsequenceDiagram
participant CH as CustomHeader
participant API as AbstractEmails
participant Payload as Payload Generation
CH->>CH: Apply NAME_PREFIX
CH->>CH: Implement getNameWithoutPrefix()
API->>CH: Request header name
CH-->>API: Return name without prefix
API->>Payload: Use clean header name
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Actionable comments posted: 0
🧹 Nitpick comments (5)
src/EmailHeader/CustomVariableHeader.php (2)
23-24: Consider adding validation for empty name parameter.The constructor should validate that the name parameter is not empty before adding the prefix.
public function __construct(string $name, string $value) { + if (empty($name)) { + throw new \InvalidArgumentException('Header name cannot be empty'); + } // add prefix to avoid conflicts with reserved header names parent::__construct(self::NAME_PREFIX . $name);
61-64: Consider optimizing the getNameWithoutPrefix implementation.The current implementation recalculates the prefix length on every call. Consider caching the prefix length as a constant.
+ private const NAME_PREFIX_LENGTH = 23; // length of 'custom_variables_prefix_' public function getNameWithoutPrefix(): string { - return substr($this->getName(), strlen(self::NAME_PREFIX)); + return substr($this->getName(), self::NAME_PREFIX_LENGTH); }src/EmailHeader/Template/TemplateVariableHeader.php (2)
25-26: Consider adding validation for empty name parameter.The constructor should validate that the name parameter is not empty before adding the prefix.
public function __construct(string $name, mixed $value) { + if (empty($name)) { + throw new \InvalidArgumentException('Header name cannot be empty'); + } // add prefix to avoid conflicts with reserved header names parent::__construct(self::NAME_PREFIX . $name);
60-63: Consider optimizing the getNameWithoutPrefix implementation.The current implementation recalculates the prefix length on every call. Consider caching the prefix length as a constant.
+ private const NAME_PREFIX_LENGTH = 25; // length of 'template_variables_prefix_' public function getNameWithoutPrefix(): string { - return substr($this->getName(), strlen(self::NAME_PREFIX)); + return substr($this->getName(), self::NAME_PREFIX_LENGTH); }src/Api/AbstractEmails.php (1)
64-64: Consider reducing duplication in header handling.While the change correctly implements prefix stripping for template variables, there's similar logic between CustomVariableHeader and TemplateVariableHeader handling. Consider extracting this common behavior into a shared method.
Example refactor:
+ private function processVariableHeader($header, string $varName): void + { + $payload[$varName][$header->getNameWithoutPrefix()] = $header->getValue(); + } switch(true) { case $header instanceof CustomVariableHeader: - $payload[CustomVariableHeader::VAR_NAME][$header->getNameWithoutPrefix()] = $header->getValue(); + $this->processVariableHeader($header, CustomVariableHeader::VAR_NAME); break; case $header instanceof TemplateVariableHeader: - $payload[TemplateVariableHeader::VAR_NAME][$header->getNameWithoutPrefix()] = $header->getValue(); + $this->processVariableHeader($header, TemplateVariableHeader::VAR_NAME); break;
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📒 Files selected for processing (6)
CHANGELOG.md(1 hunks)src/Api/AbstractEmails.php(1 hunks)src/EmailHeader/CustomHeaderInterface.php(1 hunks)src/EmailHeader/CustomVariableHeader.php(2 hunks)src/EmailHeader/Template/TemplateVariableHeader.php(2 hunks)tests/Api/AbstractEmailsTest.php(2 hunks)
✅ Files skipped from review due to trivial changes (1)
- CHANGELOG.md
🔇 Additional comments (6)
src/EmailHeader/CustomHeaderInterface.php (1)
7-10: LGTM! Well-designed interface.The interface follows the Interface Segregation Principle with a single, focused method.
src/EmailHeader/CustomVariableHeader.php (1)
14-14: LGTM! Good implementation of the interface.The class correctly implements the interface and defines an appropriate prefix constant.
Also applies to: 17-17
src/EmailHeader/Template/TemplateVariableHeader.php (1)
16-16: LGTM! Good implementation of the interface.The class correctly implements the interface and defines an appropriate prefix constant.
Also applies to: 19-19
tests/Api/AbstractEmailsTest.php (1)
575-585: LGTM! Comprehensive test coverage for header name conflicts.The added test cases thoroughly verify that the prefix mechanism prevents conflicts with reserved MIME header names.
Also applies to: 627-637
src/Api/AbstractEmails.php (2)
61-61: LGTM! Correctly implements prefix stripping for custom variables.The change appropriately uses
getNameWithoutPrefix()to ensure the payload contains the original header name without the prefix, maintaining compatibility while avoiding conflicts with reserved names.
61-64: Verify the CustomHeaderInterface implementation.Let's ensure the header classes properly implement the new interface and prefix mechanism.
✅ Verification successful
Implementation verified and correct
The CustomHeaderInterface is properly implemented by both header classes with consistent prefix handling and method implementations.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the implementation of CustomHeaderInterface and its usage # Check for the interface definition echo "Checking for CustomHeaderInterface definition..." rg -l "interface CustomHeaderInterface" # Check for implementation in both header classes echo "Checking implementation in header classes..." rg -l "implements.*CustomHeaderInterface" # Check for prefix-related methods echo "Checking prefix-related methods..." rg "getNameWithoutPrefix|getName" --type phpLength of output: 1818
Script:
#!/bin/bash # Check for NAME_PREFIX constant definitions in header classes echo "Checking NAME_PREFIX constants..." rg "const.*NAME_PREFIX" --type phpLength of output: 531
gaalferov
requested review from
IgorDobryn,
VladimirTaytor,
i7an,
leonid-shevtsov and
mklocek
4 participants
Motivation
Issue - #34
Changes
p.s. prefix is added only at the time of request generation and is not passed to MailTrap
How to test
composer testSummary by CodeRabbit
Release Notes for Version 2.0.4
New Features
CustomHeaderInterfaceto manage email header namesImprovements
Bug Fixes
Tests