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Wordpress/tests/phpunit/tests/mail.php
Jonathan Desrosiers 0933882c6e External Libraries: Upgrade PHPMailer to version 6.1.6. 
Now that WordPress Core supports PHP >= 5.6, the PHPMailer library can be updated to the latest version.

The PHPMailer files now reside in a new directory, `wp-includes/PHPMailer`. These files are copied verbatim from the library upstream and will make updating in the future easier. For backwards compatibility, the old files will remain and trigger deprecated file warnings.

The PHPMailer class is also now under the `PHPMailer\PHPMailer\PHPMailer` namespace. The `PHPMailer` class in the global namespace has been aliased for a seamless transition.

This upgrade also clears up a handful of PHP compatibility issues detailed in #49922.

For a full list of changes, see the PHPMailer GitHub: https://github.com/PHPMailer/PHPMailer/compare/v5.2.27...v6.1.6.

Props Synchro, SergeyBiryukov, desrosj, donmhico, ayeshrajans.
Fixes #41750.

git-svn-id: https://develop.svn.wordpress.org/trunk@48033 602fd350-edb4-49c9-b593-d223f7449a82
2020-06-12 15:45:30 +00:00

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PHP
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<?php
/**
* @group pluggable
* @group mail
*/
class Tests_Mail extends WP_UnitTestCase {
function setUp() {
parent::setUp();
reset_phpmailer_instance();
}
function tearDown() {
reset_phpmailer_instance();
parent::tearDown();
}
/**
* Send a mail with a 1000 char long line.
*
* `PHPMailer::createBody()` will set `$this->Encoding = 'quoted-printable'` (away from its default of 8bit)
* when it encounters a line longer than 999 characters. But PHPMailer doesn't clean up after itself / presets
* all variables, which means that following tests would fail. To solve this issue we set `$this->Encoding`
* back to 8bit in `MockPHPMailer::preSend`.
*/
function test_wp_mail_break_it() {
$content = str_repeat( 'A', 1000 );
$this->assertTrue( wp_mail( WP_TESTS_EMAIL, 'Looong line testing', $content ) );
}
function test_wp_mail_custom_boundaries() {
$to = 'user@example.com';
$subject = 'Test email with custom boundaries';
$headers = '' . "\n";
$headers .= 'MIME-Version: 1.0' . "\n";
$headers .= 'Content-Type: multipart/mixed; boundary="----=_Part_4892_25692638.1192452070893"' . "\n";
$headers .= "\n";
$body = "\n";
$body .= '------=_Part_4892_25692638.1192452070893' . "\n";
$body .= 'Content-Type: text/plain; charset=ISO-8859-1' . "\n";
$body .= 'Content-Transfer-Encoding: 7bit' . "\n";
$body .= 'Content-Disposition: inline' . "\n";
$body .= "\n";
$body .= 'Here is a message with an attachment of a binary file.' . "\n";
$body .= "\n";
$body .= '------=_Part_4892_25692638.1192452070893' . "\n";
$body .= 'Content-Type: image/x-icon; name=favicon.ico' . "\n";
$body .= 'Content-Transfer-Encoding: base64' . "\n";
$body .= 'Content-Disposition: attachment; filename=favicon.ico' . "\n";
$body .= "\n";
$body .= 'AAABAAEAEBAAAAAAAABoBQAAFgAAACgAAAAQAAAAIAAAAAEACAAAAAAAAAAAAAAAAAAAAAAAAAAA' . "\n";
$body .= 'AAAAAAAAAAAAAACAAACAAAAAgIAAgAAAAIAAgACAgAAAwMDAAICAgAAAAP8AAP8AAAD//wD/AAAA' . "\n";
$body .= '/wD/AP//AAD///8A//3/AP39/wD6/f8A+P3/AP/8/wD9/P8A+vz/AP/7/wD/+v8A/vr/APz6/wD4' . "\n";
$body .= '+v8A+/n/APP5/wD/+P8A+vj/AO/4/wDm+P8A2fj/AP/3/wD/9v8A9vb/AP/1/wD69f8A9PT/AO30' . "\n";
$body .= '/wD/8/8A//L/APnx/wD28P8A///+APj//gD2//4A9P/+AOP//gD//f4A6f/9AP///AD2//wA8//8' . "\n";
$body .= 'APf9/AD///sA/v/7AOD/+wD/+vsA9/X7APr/+gDv/voA///5AP/9+QD/+/kA+e35AP//+ADm//gA' . "\n";
$body .= '4f/4AP/9+AD0+/gA///3APv/9wDz//cA8f/3AO3/9wD/8fcA//32AP369gDr+vYA8f/1AOv/9QD/' . "\n";
$body .= '+/UA///0APP/9ADq//QA///zAP/18wD///IA/fzyAP//8QD///AA9//wAPjw8AD//+8A8//vAP//' . "\n";
$body .= '7gD9/+4A9v/uAP/u7gD//+0A9v/tAP7/6wD/+eoA///pAP//6AD2/+gA//nnAP/45wD38eYA/fbl' . "\n";
$body .= 'AP/25AD29uQA7N/hAPzm4AD/690AEhjdAAAa3AAaJdsA//LXAC8g1gANH9YA+dnTAP/n0gDh5dIA' . "\n";
$body .= 'DyjSABkk0gAdH9EABxDRAP/l0AAAJs4AGRTOAPPczQAAKs0AIi7MAA4UywD56soA8tPKANTSygD/' . "\n";
$body .= '18kA6NLHAAAjxwDj28QA/s7CAP/1wQDw3r8A/9e8APrSrwDCtqoAzamjANmPiQDQj4YA35mBAOme' . "\n";
$body .= 'fgDHj3wA1qR6AO+sbwDpmm8A2IVlAKmEYgCvaFoAvHNXAEq2VgA5s1UAPbhQAFWtTwBStU0ARbNN' . "\n";
$body .= 'AEGxTQA7tEwAObZIAEq5RwDKdEYAULhDANtuQgBEtTwA1ls3ALhgMQCxNzEA2FsvAEC3LQB0MCkA' . "\n";
$body .= 'iyYoANZTJwDLWyYAtjMlALE6JACZNSMAuW4iANlgIgDoWCEAylwgAMUuIAD3Vh8A52gdALRCHQCx' . "\n";
$body .= 'WhwAsEkcALU4HACMOBwA0V4bAMYyGgCPJRoA218ZAJM7FwC/PxYA0msVAM9jFQD2XBUAqioVAIAf' . "\n";
$body .= 'FQDhYRQAujMTAMUxEwCgLBMAnxIPAMsqDgCkFgsA6GMHALE2BAC9JQAAliIAAFYTAAAAAAAAAAAA' . "\n";
$body .= 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' . "\n";
$body .= 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD/' . "\n";
$body .= '//8AsbGxsbGxsbGxsbGxsbGxd7IrMg8PDw8PDw8PUBQeJXjQYE9PcKPM2NfP2sWhcg+BzTE7dLjb' . "\n";
$body .= 'mG03YWaV4JYye8MPbsLZlEouKRRCg9SXMoW/U53enGRAFzCRtNO7mTiAyliw30gRTg9VbJCKfYs0' . "\n";
$body .= 'j9VmuscfLTFbIy8SOhA0Inq5Y77GNBMYIxQUJzM2Vxx2wEmfyCYWMRldXCg5MU0aicRUms58SUVe' . "\n";
$body .= 'RkwjPBRSNIfBMkSgvWkyPxVHFIaMSx1/0S9nkq7WdWo1a43Jt2UqgtJERGJ5m6K8y92znpNWIYS1' . "\n";
$body .= 'UQ89Mmg5cXNaX0EkGyyI3KSsp6mvpaqosaatq7axsQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' . "\n";
$body .= 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=' . "\n";
$body .= '------=_Part_4892_25692638.1192452070893--' . "\n";
$body .= "\n";
wp_mail( $to, $subject, $body, $headers );
$mailer = tests_retrieve_phpmailer_instance();
// We need some better assertions here but these catch the failure for now.
$this->assertEquals( $body, $mailer->get_sent()->body );
$this->assertTrue( strpos( iconv_mime_decode_headers( ( $mailer->get_sent()->header ) )['Content-Type'][0], 'boundary="----=_Part_4892_25692638.1192452070893"' ) > 0 );
$this->assertTrue( strpos( $mailer->get_sent()->header, 'charset=' ) > 0 );
}
/**
* @ticket 17305
*/
function test_wp_mail_rfc2822_addresses() {
$to = 'Name <address@tld.com>';
$from = 'Another Name <another_address@different-tld.com>';
$cc = 'The Carbon Guy <cc@cc.com>';
$bcc = 'The Blind Carbon Guy <bcc@bcc.com>';
$subject = 'RFC2822 Testing';
$message = 'My RFC822 Test Message';
$headers[] = "From: {$from}";
$headers[] = "CC: {$cc}";
$headers[] = "BCC: {$bcc}";
wp_mail( $to, $subject, $message, $headers );
// WordPress 3.2 and later correctly split the address into the two parts and send them separately to PHPMailer.
// Earlier versions of PHPMailer were not touchy about the formatting of these arguments.
// Retrieve the mailer instance.
$mailer = tests_retrieve_phpmailer_instance();
$this->assertEquals( 'address@tld.com', $mailer->get_recipient( 'to' )->address );
$this->assertEquals( 'Name', $mailer->get_recipient( 'to' )->name );
$this->assertEquals( 'cc@cc.com', $mailer->get_recipient( 'cc' )->address );
$this->assertEquals( 'The Carbon Guy', $mailer->get_recipient( 'cc' )->name );
$this->assertEquals( 'bcc@bcc.com', $mailer->get_recipient( 'bcc' )->address );
$this->assertEquals( 'The Blind Carbon Guy', $mailer->get_recipient( 'bcc' )->name );
$this->assertEquals( $message . "\n", $mailer->get_sent()->body );
}
/**
* @ticket 17305
*/
function test_wp_mail_multiple_rfc2822_to_addresses() {
$to = 'Name <address@tld.com>, Another Name <another_address@different-tld.com>';
$subject = 'RFC2822 Testing';
$message = 'My RFC822 Test Message';
wp_mail( $to, $subject, $message );
// WordPress 3.2 and later correctly split the address into the two parts and send them separately to PHPMailer.
// Earlier versions of PHPMailer were not touchy about the formatting of these arguments.
$mailer = tests_retrieve_phpmailer_instance();
$this->assertEquals( 'address@tld.com', $mailer->get_recipient( 'to' )->address );
$this->assertEquals( 'Name', $mailer->get_recipient( 'to' )->name );
$this->assertEquals( 'another_address@different-tld.com', $mailer->get_recipient( 'to', 0, 1 )->address );
$this->assertEquals( 'Another Name', $mailer->get_recipient( 'to', 0, 1 )->name );
$this->assertEquals( $message . "\n", $mailer->get_sent()->body );
}
function test_wp_mail_multiple_to_addresses() {
$to = 'address@tld.com, another_address@different-tld.com';
$subject = 'RFC2822 Testing';
$message = 'My RFC822 Test Message';
wp_mail( $to, $subject, $message );
$mailer = tests_retrieve_phpmailer_instance();
$this->assertEquals( 'address@tld.com', $mailer->get_recipient( 'to' )->address );
$this->assertEquals( 'another_address@different-tld.com', $mailer->get_recipient( 'to', 0, 1 )->address );
$this->assertEquals( $message . "\n", $mailer->get_sent()->body );
}
/**
* @ticket 18463
*/
function test_wp_mail_to_address_no_name() {
$to = '<address@tld.com>';
$subject = 'RFC2822 Testing';
$message = 'My RFC822 Test Message';
wp_mail( $to, $subject, $message );
$mailer = tests_retrieve_phpmailer_instance();
$this->assertEquals( 'address@tld.com', $mailer->get_recipient( 'to' )->address );
$this->assertEquals( $message . "\n", $mailer->get_sent()->body );
}
/**
* @ticket 23642
*/
function test_wp_mail_return_value() {
// No errors.
$this->assertTrue( wp_mail( 'valid@address.com', 'subject', 'body' ) );
// Non-fatal errors.
$this->assertTrue( wp_mail( 'valid@address.com', 'subject', 'body', "Cc: invalid-address\nBcc: @invalid.address", ABSPATH . '/non-existant-file.html' ) );
// Fatal errors.
$this->assertFalse( wp_mail( 'invalid.address', 'subject', 'body', '', array() ) );
}
/**
* @ticket 30266
*/
public function test_wp_mail_with_valid_from_header() {
$to = 'address@tld.com';
$subject = 'Testing';
$message = 'Test Message';
$headers = 'From: Foo <bar@example.com>';
$expected = 'From: Foo <bar@example.com>';
wp_mail( $to, $subject, $message, $headers );
$mailer = tests_retrieve_phpmailer_instance();
$this->assertTrue( strpos( $mailer->get_sent()->header, $expected ) > 0 );
}
/**
* @ticket 30266
*/
public function test_wp_mail_with_empty_from_header() {
$to = 'address@tld.com';
$subject = 'Testing';
$message = 'Test Message';
$headers = 'From: ';
$expected = 'From: WordPress <wordpress@' . WP_TESTS_DOMAIN . '>';
wp_mail( $to, $subject, $message, $headers );
$mailer = tests_retrieve_phpmailer_instance();
$this->assertTrue( strpos( $mailer->get_sent()->header, $expected ) > 0 );
}
/**
* @ticket 30266
*/
public function test_wp_mail_with_empty_from_name_for_the_from_header() {
$to = 'address@tld.com';
$subject = 'Testing';
$message = 'Test Message';
$headers = 'From: <wordpress@example.com>';
$expected = 'From: WordPress <wordpress@example.com>';
wp_mail( $to, $subject, $message, $headers );
$mailer = tests_retrieve_phpmailer_instance();
$this->assertTrue( strpos( $mailer->get_sent()->header, $expected ) > 0 );
}
/**
* @ticket 30266
*/
public function test_wp_mail_with_valid_content_type_header() {
$to = 'address@tld.com';
$subject = 'Testing';
$message = 'Test Message';
$headers = 'Content-Type: text/html; charset=iso-8859-1';
$expected = 'Content-Type: text/html; charset=iso-8859-1';
wp_mail( $to, $subject, $message, $headers );
$mailer = tests_retrieve_phpmailer_instance();
$this->assertTrue( strpos( $mailer->get_sent()->header, $expected ) > 0 );
}
/**
* @ticket 30266
*/
public function test_wp_mail_with_empty_content_type_header() {
$to = 'address@tld.com';
$subject = 'Testing';
$message = 'Test Message';
$headers = 'Content-Type: ';
$expected = 'Content-Type: text/plain; charset=UTF-8';
wp_mail( $to, $subject, $message, $headers );
$mailer = tests_retrieve_phpmailer_instance();
$this->assertTrue( strpos( $mailer->get_sent()->header, $expected ) > 0 );
}
/**
* @ticket 30266
*/
public function test_wp_mail_with_empty_charset_for_the_content_type_header() {
$to = 'address@tld.com';
$subject = 'Testing';
$message = 'Test Message';
$headers = 'Content-Type: text/plain;';
$expected = 'Content-Type: text/plain; charset=UTF-8';
wp_mail( $to, $subject, $message, $headers );
$mailer = tests_retrieve_phpmailer_instance();
$this->assertTrue( strpos( $mailer->get_sent()->header, $expected ) > 0 );
}
/**
* @ticket 43542
*/
public function test_wp_mail_does_not_duplicate_mime_version_header() {
$to = 'user@example.com';
$subject = 'Test email with a MIME-Version header';
$message = 'The MIME-Version header should not be duplicated.';
$headers = 'MIME-Version: 1.0';
$expected = 'MIME-Version: 1.0';
wp_mail( $to, $subject, $message, $headers );
$mailer = tests_retrieve_phpmailer_instance();
$this->assertEquals( 1, substr_count( $mailer->get_sent()->header, $expected ) );
}
function wp_mail_quoted_printable( $mailer ) {
$mailer->Encoding = 'quoted-printable';
}
function wp_mail_set_text_message( $mailer ) {
$mailer->AltBody = 'Wörld';
}
/**
* > If an entity is of type "multipart" the Content-Transfer-Encoding is
* > not permitted to have any value other than "7bit", "8bit" or
* > "binary".
* https://tools.ietf.org/html/rfc2045#section-6.4
*
* > "Content-Transfer-Encoding: 7BIT" is assumed if the
* > Content-Transfer-Encoding header field is not present.
* https://tools.ietf.org/html/rfc2045#section-6.1
*
* @ticket 28039
*/
function test_wp_mail_content_transfer_encoding_in_quoted_printable_multipart() {
add_action( 'phpmailer_init', array( $this, 'wp_mail_quoted_printable' ) );
add_action( 'phpmailer_init', array( $this, 'wp_mail_set_text_message' ) );
wp_mail(
'user@example.com',
'Hello',
'<p><strong>Wörld</strong></p>',
'Content-Type: text/html'
);
$this->assertNotContains( 'quoted-printable', $GLOBALS['phpmailer']->mock_sent[0]['header'] );
}
/**
* @ticket 21659
*/
public function test_wp_mail_addresses_arent_encoded() {
$to = 'Lukáš To <to@example.org>';
$subject = 'Testing #21659';
$message = 'Only the name should be encoded, not the address.';
$headers = array(
'From' => 'From: Lukáš From <from@example.org>',
'Cc' => 'Cc: Lukáš CC <cc@example.org>',
'Bcc' => 'Bcc: Lukáš BCC <bcc@example.org>',
'Reply-To' => 'Reply-To: Lukáš Reply-To <reply_to@example.org>',
);
$expected = array(
'To' => 'To: =?UTF-8?B?THVrw6HFoSBUbw==?= <to@example.org>',
'From' => 'From: =?UTF-8?Q?Luk=C3=A1=C5=A1_From?= <from@example.org>',
'Cc' => 'Cc: =?UTF-8?B?THVrw6HFoSBDQw==?= <cc@example.org>',
'Bcc' => 'Bcc: =?UTF-8?B?THVrw6HFoSBCQ0M=?= <bcc@example.org>',
'Reply-To' => 'Reply-To: =?UTF-8?Q?Luk=C3=A1=C5=A1_Reply-To?= <reply_to@example.org>',
);
wp_mail( $to, $subject, $message, array_values( $headers ) );
$mailer = tests_retrieve_phpmailer_instance();
$sent_headers = preg_split( "/\r\n|\n|\r/", $mailer->get_sent()->header );
$headers['To'] = "To: $to";
foreach ( $headers as $header => $value ) {
$target_headers = preg_grep( "/^$header:/", $sent_headers );
$this->assertEquals( $expected[ $header ], array_pop( $target_headers ) );
}
}
/**
* Test that the Sender field in the SMTP envelope is not set by Core.
*
* Correctly setting the Sender requires knowledge that is not available
* to Core. An incorrect value will often lead to messages being rejected
* by the receiving MTA, so it's the admin's responsibility to
* set it correctly.
*
* @ticket 37736
*/
public function test_wp_mail_sender_not_set() {
wp_mail( 'user@example.org', 'Testing the Sender field', 'The Sender field should not have been set.' );
$mailer = tests_retrieve_phpmailer_instance();
$this->assertEquals( '', $mailer->Sender );
}
/**
* @ticket 35598
*/
public function test_phpmailer_exception_thrown() {
$to = 'an_invalid_address';
$subject = 'Testing';
$message = 'Test Message';
$ma = new MockAction();
add_action( 'wp_mail_failed', array( &$ma, 'action' ) );
wp_mail( $to, $subject, $message );
$this->assertEquals( 1, $ma->get_call_count() );
$expected_error_data = array(
'to' => array( 'an_invalid_address' ),
'subject' => 'Testing',
'message' => 'Test Message',
'headers' => array(),
'attachments' => array(),
'phpmailer_exception_code' => 2,
);
// Retrieve the arguments passed to the 'wp_mail_failed' hook callbacks.
$all_args = $ma->get_args();
$call_args = array_pop( $all_args );
$this->assertEquals( 'wp_mail_failed', $call_args[0]->get_error_code() );
$this->assertEquals( $expected_error_data, $call_args[0]->get_error_data() );
}
}
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