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https://github.com/silverstripe/silverstripe-userforms.git
synced 2024-10-22 17:05:42 +02:00
NEW Maximum email attachment size can be configured
Previously hard coded size of 1MB meant any file larger was excluded from recipient emails - often confusing for CMS admins configuring an advanced use case for a userform, expecting to recieve files to begin a business process external to the website. The configuration has been made to support PHP 'shorthand byte values' https://www.php.net/manual/en/faq.using.php#faq.using.shorthandbytes in the configuration option. This give flexibility around oddly specific limits, but can also be used to set as 0, disabling attachments Tests are updated to set up a known state before testing, as to be able to accurately assert the results. One should test the class they intend, not an Injector service of some unknown element.
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@ -56,6 +56,16 @@ class UserDefinedFormController extends PageController
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private static string $file_upload_stage = Versioned::DRAFT;
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/**
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* Size that an uploaded file must not excede for it to be attached to an email
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* Follows PHP "shorthand bytes" definition rules.
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* @see self::parseByteSizeString()
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*
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* @var int
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* @config
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*/
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private static $maximum_email_attachment_size = '1M';
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protected function init()
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{
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parent::init();
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@ -215,6 +225,42 @@ JS
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}
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}
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/**
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* Returns the maximum size uploaded files can be before they're excluded from CMS configured recipient emails
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*
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* @return int size in megabytes
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*/
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public function getMaximumAllowedEmailAttachmentSize()
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{
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return $this->parseByteSizeString($this->config()->get('maximum_email_attachment_size'));
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}
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/**
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* Convert file sizes with a single character for unit size to true byte count.
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* Just as with php.ini and e.g. 128M -> 1024 * 1024 * 128 bytes.
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* @see https://www.php.net/manual/en/faq.using.php#faq.using.shorthandbytes
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*
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* @param string $byteSize
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* @return int bytes
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*/
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protected function parseByteSizeString($byteSize)
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{
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// kilo, mega, giga
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$validUnits = 'kmg';
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$valid = preg_match("/^(?<number>\d+)((?<unit>[$validUnits])b?)?$/i", $byteSize, $matches);
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if (!$valid) {
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throw new \InvalidArgumentException(
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"Expected a positive integer followed optionally by K, M, or G. Found '$byteSize' instead"
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);
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}
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$power = 0;
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// prepend b for bytes to $validUnits to give correct mapping of ordinal position to exponent
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if (isset($matches['unit'])) {
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$power = stripos("b$validUnits", $matches['unit']);
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}
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return intval($matches['number']) * pow(1024, $power);
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}
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/**
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* Process the form that is submitted through the site
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*
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@ -308,8 +354,8 @@ JS
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// write file to form field
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$submittedField->UploadedFileID = $file->ID;
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// attach a file only if lower than 1MB
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if ($file->getAbsoluteSize() < 1024 * 1024 * 1) {
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// attach a file to recipient email only if lower than configured size
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if ($file->getAbsoluteSize() <= $this->getMaximumAllowedEmailAttachmentSize()) {
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$attachments[] = $file;
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}
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}
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@ -24,6 +24,7 @@ use SilverStripe\UserForms\Model\EditableFormField\EditableTextField;
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use SilverStripe\UserForms\Model\Recipient\EmailRecipient;
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use SilverStripe\UserForms\Model\Submission\SubmittedFormField;
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use SilverStripe\UserForms\Model\UserDefinedForm;
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use SilverStripe\UserForms\Tests\Control\fixtures\SizeStringTestableController;
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use SilverStripe\Versioned\Versioned;
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use SilverStripe\View\ArrayData;
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use SilverStripe\View\SSViewer;
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@ -47,7 +48,9 @@ class UserDefinedFormControllerTest extends FunctionalTest
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// Set backend and base url
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TestAssetStore::activate('AssetStoreTest');
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Config::modify()->merge(SSViewer::class, 'themes', ['simple', '$default']);
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$config = Config::modify();
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$config->set(UserDefinedFormController::class, 'maximum_email_attachment_size', "1M");
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$config->merge(SSViewer::class, 'themes', ['simple', '$default']);
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}
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protected function tearDown(): void
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@ -273,7 +276,8 @@ class UserDefinedFormControllerTest extends FunctionalTest
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$actions = $controller->Form()->getFormActions();
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$expected = new FieldList(new FormAction('process', 'Custom Button'));
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$expected->push(FormAction::create('clearForm', 'Clear')->setAttribute('type', 'reset'));
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$clearAction = new FormAction('clearForm', 'Clear');
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$expected->push($clearAction->setAttribute('type', 'reset'));
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$expected->setForm($controller->Form());
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$this->assertEquals($actions, $expected);
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@ -404,7 +408,7 @@ class UserDefinedFormControllerTest extends FunctionalTest
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Config::modify()->set(Upload_Validator::class, 'use_is_uploaded_file', false);
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$userForm = $this->setupFormFrontend('upload-form');
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$controller = UserDefinedFormController::create($userForm);
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$controller = new UserDefinedFormController($userForm);
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$field = $this->objFromFixture(EditableFileField::class, 'file-field-1');
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$path = realpath(__DIR__ . '/fixtures/testfile.jpg');
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@ -440,7 +444,7 @@ class UserDefinedFormControllerTest extends FunctionalTest
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Config::modify()->set(Upload_Validator::class, 'use_is_uploaded_file', false);
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$userForm = $this->setupFormFrontend('upload-form');
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$controller = UserDefinedFormController::create($userForm);
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$controller = new UserDefinedFormController($userForm);
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$field = $this->objFromFixture(EditableFileField::class, 'file-field-1');
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$path = realpath(__DIR__ . '/fixtures/testfile.jpg');
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@ -511,4 +515,71 @@ class UserDefinedFormControllerTest extends FunctionalTest
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$this->assertEquals(1, $fileDraftCount);
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$this->assertEquals(0, $fileLiveCount);
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}
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public function testEmailAttachmentMaximumSizeCanBeConfigured()
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{
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$udfController = new UserDefinedFormController();
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$config = Config::modify();
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$config->set(UserDefinedFormController::class, 'maximum_email_attachment_size', '1M');
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$this->assertSame(1 * 1024 * 1024, $udfController->getMaximumAllowedEmailAttachmentSize());
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$config->set(UserDefinedFormController::class, 'maximum_email_attachment_size', '5M');
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$this->assertSame(5 * 1024 * 1024, $udfController->getMaximumAllowedEmailAttachmentSize());
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}
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public function getParseByteSizeStringTestValues()
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{
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return [
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['9846', 9846],
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['1048576', 1048576],
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['1k', 1024],
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['1K', 1024],
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['4k', 4096],
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['4K', 4096],
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['1kb', 1024],
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['1KB', 1024],
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['4kB', 4096],
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['4Kb', 4096],
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['1m', 1048576],
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['1M', 1048576],
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['4mb', 4194304],
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['4MB', 4194304],
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['25mB', 26214400],
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['25Mb', 26214400],
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['1g', 1073741824],
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['2GB', 2147483648],
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];
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}
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/**
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* @dataProvider getParseByteSizeStringTestValues
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*/
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public function testParseByteSizeString($input, $expectedOutput)
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{
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$controller = new SizeStringTestableController(); // extends UserDefinedFormController
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$this->assertSame($expectedOutput, $controller->convertSizeStringToBytes($input));
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}
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public function getParseByteSizeStringTestBadValues()
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{
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return [
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['1234b'],
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['9846B'],
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['1kilobyte'],
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['1 K'],
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['Four kilobytes'],
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['4Mbs'],
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['12Gigs'],
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];
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}
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/**
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* @dataProvider getParseByteSizeStringTestBadValues
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* @expectedException \InvalidArgumentException
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*/
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public function testParseByteSizeStringBadValuesThrowException($input)
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{
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$this->expectException('\InvalidArgumentException');
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$controller = new SizeStringTestableController(); // extends UserDefinedFormController
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$controller->convertSizeStringToBytes($input);
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}
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}
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14
tests/php/Control/fixtures/SizeStringTestableController.php
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14
tests/php/Control/fixtures/SizeStringTestableController.php
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@ -0,0 +1,14 @@
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<?php
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namespace SilverStripe\UserForms\Tests\Control\fixtures;
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use SilverStripe\Dev\TestOnly;
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use SilverStripe\UserForms\Control\UserDefinedFormController;
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class SizeStringTestableController extends UserDefinedFormController implements TestOnly
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{
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public function convertSizeStringToBytes($sizeString)
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{
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return $this->parseByteSizeString($sizeString);
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}
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}
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