Files
mail/lib/CompositionManager.php
T

896 lines
35 KiB
PHP

<?php
declare(strict_types=1);
namespace KTXM\Mail;
use InvalidArgumentException;
use KTXC\Module\ModuleManager;
use KTXF\Event\EventDispatcherInterface;
use KTXF\Mail\Collection\CollectionBaseInterface;
use KTXF\Mail\Collection\CollectionRoles;
use KTXF\Mail\Object\Address;
use KTXF\Mail\Object\AddressInterface;
use KTXF\Mail\Object\MessagePart;
use KTXF\Mail\Object\MessagePropertiesMutableInterface;
use KTXF\Mail\Service\ServiceEntityMutableInterface;
use KTXF\Mail\Service\ServiceBaseInterface;
use KTXF\Mail\Service\ServiceEntitySubmitInterface;
use KTXF\Mail\Submission\EntitySubmitResult;
use KTXF\Resource\BinaryResource;
use KTXF\Resource\Identifier\CollectionIdentifier;
use KTXF\Resource\Identifier\EntityIdentifier;
use KTXF\Resource\Identifier\ResourceIdentifier;
use KTXF\Utile\UUID;
use KTXM\Mail\Stores\CompositionStore;
use KTXM\MailManager\Manager as MailManager;
use KTXM\DocumentsManager\Manager as DocumentsManager;
use Psr\Container\ContainerInterface;
use RuntimeException;
use Throwable;
class CompositionManager {
private const DOCUMENTS_MODULE_HANDLE = 'documents_manager';
public function __construct(
private readonly ContainerInterface $container,
private readonly ModuleManager $moduleManager,
private readonly CompositionStore $compositionStore,
private readonly MailManager $mailManager,
private readonly EventDispatcherInterface $events,
) {}
public function stage(string $tenantId, string $userId, string $identifier, string $action, array $sender, array $message, ?string $source = null): array {
if ($identifier === '') {
throw new InvalidArgumentException('Draft identifier is required');
}
$snapshot = [
'identifier' => $identifier,
'action' => $action,
'source' => $source,
'revision' => 1,
'disposition' => 'staged',
'sender' => $sender,
'message' => $message,
'attachments' => [],
'remote' => [
'status' => 'dirty',
'entity' => null,
'error' => null,
],
];
// Construct the snapshot mutation that will run while the composition is locked.
$saveComposition = function () use ($tenantId, $userId, $identifier, $action, $source, $snapshot): array {
if ($action !== 'forward') {
return $snapshot;
}
$sourceIndentifier = ResourceIdentifier::fromString($source);
if ($sourceIndentifier === null) {
throw new InvalidArgumentException('Invalid source identifier');
}
$entities = $this->mailManager->entityFetchBulk($tenantId, $userId, $sourceIndentifier);
if (count($entities) === 0) {
throw new InvalidArgumentException('Source message not found');
}
// retrieve the attachments from the source message
$attachments = reset($entities)->getProperties()->getAttachments();
// For each attachment, we download the content and stage it in the composition store
foreach ($attachments as $attachment) {
$contentId = $attachment->getContentId();
$isInline = $attachment->getDisposition() === 'inline';
// target part
$targetPart = [
'partId' => $attachment->getId(),
'blobId' => $attachment->getBlobId(),
'cid' => $contentId,
'cId' => $contentId,
];
// retrieve the attachment content as a stream
$data = $this->mailManager->entityDownload($tenantId, $userId, $sourceIndentifier, $targetPart);
// stage the attachment in the composition store
$meta = $this->compositionStore->attachmentStageFromStream(
tenantId: $tenantId,
userId: $userId,
compositionId: $identifier,
attachmentId: UUID::v4(),
data: $data,
);
// supplement the attachment metadata with source information
$meta['origin'] = 'message';
$meta['source'] = $source;
$meta['partId'] = $attachment->getId();
$meta['blobId'] = $attachment->getBlobId();
$meta['cid'] = $contentId;
$meta['contentId'] = $contentId;
$meta['disposition'] = $attachment->getDisposition();
$meta['inline'] = $isInline;
$meta['name'] = $attachment->getName() ?? $meta['name'];
$meta['type'] = $attachment->getType() ?? $meta['type'];
$meta['size'] = $attachment->getSize() ?? $meta['size'];
$snapshot['attachments'][$meta['identifier']] = $meta;
}
return $snapshot;
};
// Execute the mutation and atomically persist the snapshot it returns.
$snapshot = $this->compositionStore->compositionSave(
$tenantId,
$userId,
$identifier,
$saveComposition,
) ?? $snapshot;
$event = new CompositionSavedEvent($tenantId, $userId, $identifier, (int)$snapshot['revision']);
$this->events->dispatch($event);
$response = $snapshot;
unset($response['remote']);
return $response;
}
public function patch(string $tenantId, string $userId, string $identifier, array $data): array {
$result = [];
// Construct the snapshot mutation that will run while the composition is locked.
$patchComposition = function (?array $composed) use ($data, $identifier, &$result): ?array {
if ($composed === null) {
$result['disposition'] = 'error';
$result['error'] = [
'type' => 'composition_not_found',
'message' => 'Composition not found',
];
return null;
}
if (!isset($data['revision']) || !is_int($data['revision']) || $data['revision'] < $composed['revision']) {
$result['disposition'] = 'error';
$result['error'] = [
'type' => 'revision_mismatch',
'message' => 'Revision mismatch',
'currentRevision' => $composed['revision'],
];
return null;
}
$composed['revision'] = $data['revision'];
$composed['sender'] = $data['sender'] ?? [];
$composed['message'] = $data['message'] ?? [];
$composed = $this->markRemoteDirty($composed);
$result = [
'identifier' => $identifier,
'disposition' => 'patched',
];
return $composed;
};
// Execute the mutation and atomically persist the snapshot it returns.
$composed = $this->compositionStore->compositionSave(
$tenantId,
$userId,
$identifier,
$patchComposition,
);
if (($result['disposition'] ?? null) === 'patched' && $composed !== null) {
$event = new CompositionSavedEvent($tenantId, $userId, $identifier, (int)($composed['revision'] ?? 0));
$this->events->dispatch($event);
}
return $result;
}
public function save(string $tenantId, string $userId, string $identifier, array $data): array {
// Construct the snapshot mutation that will run while the composition is locked.
$saveComposition = function (?array $composed) use ($data): ?array {
if ($composed === null) {
return null;
}
if (isset($data['revision']) && is_int($data['revision'])) {
$composed['revision'] = $data['revision'];
}
$composed['sender'] = $data['sender'];
$composed['message'] = $data['message'];
return $this->markRemoteDirty($composed);
};
// Execute the mutation and atomically persist the snapshot it returns.
$composed = $this->compositionStore->compositionSave(
$tenantId,
$userId,
$identifier,
$saveComposition,
);
if ($composed === null) {
return [
'identifier' => $identifier,
'disposition' => 'error',
'error' => [
'type' => 'composition_not_found',
'message' => 'Composition not found',
],
];
}
$synchronized = $this->synchronize($tenantId, $userId, $identifier);
if ($synchronized['disposition'] !== 'saved') {
return [
'identifier' => $identifier,
'disposition' => 'error',
'error' => [
'type' => 'composition_save_failed',
'message' => (string)($synchronized['error'] ?? 'Draft could not be saved to the server'),
],
];
}
$this->compositionStore->compositionDiscard($tenantId, $userId, $identifier);
return ['identifier' => $identifier, 'disposition' => 'saved'];
}
public function discard(string $tenantId, string $userId, string $identifier): array {
$composed = $this->compositionStore->compositionFetch($tenantId, $userId, $identifier);
if ($composed === null) {
return ['identifier' => $identifier, 'disposition' => 'discarded'];
}
try {
$remoteEntity = $this->remoteEntityIdentifier($composed['remote']['entity'] ?? null);
if ($remoteEntity !== null) {
$outcomes = $this->mailManager->entityDelete($tenantId, $userId, $remoteEntity);
$outcome = $outcomes[(string)$remoteEntity] ?? reset($outcomes);
if (!is_array($outcome) || ($outcome['disposition'] ?? 'error') === 'error') {
return [
'identifier' => $identifier,
'disposition' => 'error',
'error' => [
'type' => 'composition_discard_failed',
'message' => is_array($outcome)
? (string)($outcome['error'] ?? 'Remote draft could not be discarded')
: 'Remote draft could not be discarded',
],
];
}
}
} catch (Throwable $throwable) {
return [
'identifier' => $identifier,
'disposition' => 'error',
'error' => [
'type' => 'composition_discard_failed',
'message' => $throwable->getMessage(),
],
];
}
$this->compositionStore->compositionDiscard($tenantId, $userId, $identifier);
return ['identifier' => $identifier, 'disposition' => 'discarded'];
}
public function synchronize(string $tenantId, string $userId, string $identifier): array {
$result = [
'identifier' => $identifier,
'disposition' => 'staged',
];
// Construct the synchronization operation that will run while the composition is locked.
$synchronizeComposition = function (?array $composed) use ($tenantId, $userId, $identifier, &$result): ?array {
if ($composed === null) {
$result['error'] = 'Composition not found';
return null;
}
$remote = isset($composed['remote']) && is_array($composed['remote'])
? $composed['remote']
: ['status' => 'dirty', 'entity' => null, 'error' => null];
if (($remote['status'] ?? 'dirty') === 'synced') {
$result['disposition'] = 'saved';
return null;
}
try {
$sender = isset($composed['sender']) && is_array($composed['sender'])
? $composed['sender']
: [];
$senderAddress = (string)($sender['address'] ?? '');
if ($senderAddress === '' || !filter_var($senderAddress, FILTER_VALIDATE_EMAIL)) {
throw new RuntimeException('Composition sender is invalid');
}
$service = $this->mailManager->serviceFindByAddress($tenantId, $userId, $senderAddress);
if ($service === null || $service->getEnabled() === false) {
throw new RuntimeException("No enabled mail service handles '$senderAddress'");
}
if (!$service instanceof ServiceEntityMutableInterface) {
throw new RuntimeException("Mail service '{$service->identifier()}' does not support draft mutations");
}
$target = $this->resolveDraftCollection($service);
$attachments = isset($composed['attachments']) && is_array($composed['attachments'])
? array_values($composed['attachments'])
: [];
$properties = $this->buildMessageProperties(
service: $service,
sender: Address::fromArray($sender),
message: is_array($composed['message'] ?? null) ? $composed['message'] : [],
attachments: $attachments,
composed: $composed,
tenantId: $tenantId,
userId: $userId,
compositionId: $identifier,
);
$properties->setFlag('draft', true);
$properties->setFlag('seen', true);
$remoteEntity = $this->remoteEntityIdentifier($remote['entity'] ?? null);
if ($remoteEntity === null) {
$entity = $this->mailManager->entityCreate($tenantId, $userId, $target, $properties);
} else {
if ($remoteEntity->provider() !== $service->provider()
|| (string)$remoteEntity->service() !== (string)$service->identifier()) {
throw new RuntimeException('Changing the draft service is not supported yet');
}
$entity = $this->mailManager->entityModify($tenantId, $userId, $remoteEntity, $properties);
}
if ($entity->collection() === null || $entity->identifier() === null) {
throw new RuntimeException('Provider returned an incomplete draft identifier');
}
$composed['remote'] = [
...$remote,
'status' => 'synced',
'entity' => (string)new EntityIdentifier(
$entity->provider(),
(string)$entity->service(),
(string)$entity->collection(),
(string)$entity->identifier(),
),
'error' => null,
];
$result['disposition'] = 'saved';
} catch (Throwable $throwable) {
$composed['remote'] = [
...$remote,
'status' => 'failed',
'entity' => $remote['entity'] ?? null,
'error' => $throwable->getMessage(),
];
$result['error'] = $throwable->getMessage();
}
return $composed;
};
// Synchronize and atomically persist the resulting remote state.
$this->compositionStore->compositionSave(
$tenantId,
$userId,
$identifier,
$synchronizeComposition,
);
return $result;
}
public function send(string $tenantId, string $userId, string $identifier, array $sender, array $message, array $attachments): array {
// Construct the snapshot mutation that will run while the composition is locked.
$saveComposition = function (?array $composed) use ($sender, $message): ?array {
if ($composed === null) {
return null;
}
$composed['sender'] = $sender;
$composed['message'] = $message;
return $this->markRemoteDirty($composed);
};
// Execute the mutation and atomically persist the snapshot it returns.
$composed = $this->compositionStore->compositionSave(
$tenantId,
$userId,
$identifier,
$saveComposition,
);
if ($composed === null) {
return [
'disposition' => 'error',
'error' => [
'type' => 'composition_not_found',
'message' => 'Composition not found',
],
];
}
// validate the sender address before attempting to send the message
if ($sender['address'] === '' || !filter_var($sender['address'], FILTER_VALIDATE_EMAIL)) {
$result['disposition'] = 'error';
$result['error'] = [
'type' => 'composition_invalid_sender',
'message' => 'Invalid sender address',
];
return $result;
}
$senderAddress = $sender['address'];
$senderObject = Address::fromArray($sender);
// resolve submit-capable service for sender
$service = $this->mailManager->serviceFindByAddress($tenantId, $userId, $senderAddress);
if ($service === null || $service->getEnabled() === false) {
return [
'disposition' => 'error',
'error' => [
'type' => 'service_not_found',
'message' => "Service not found for sender '$senderAddress' or service is disabled",
],
];
}
if ($service instanceof ServiceEntitySubmitInterface === false) {
return [
'disposition' => 'error',
'error' => [
'type' => 'service_not_supported',
'message' => "Service '{$service->identifier()}' does not support entity submission",
],
];
}
$source = null;
$properties = $this->buildMessageProperties(
service: $service,
sender: $senderObject,
message: $message,
attachments: $attachments,
composed: $composed,
tenantId: $tenantId,
userId: $userId,
compositionId: $identifier,
);
$sendResult = $service->entitySubmit($senderObject, $source, $properties);
if ($sendResult->disposition === EntitySubmitResult::DISPOSITION_ERROR) {
return [
'identifier' => $identifier,
'disposition' => 'error',
'error' => [
'type' => 'service_submission_error',
'message' => $sendResult->errorMessage ?? 'An unknown error occurred during submission',
],
];
}
return [
'identifier' => $identifier,
'disposition' => 'sent'
];
}
private function buildMessageProperties(
ServiceEntitySubmitInterface|ServiceEntityMutableInterface $service,
AddressInterface $sender,
array $message,
array $attachments,
array $composed,
string $tenantId,
string $userId,
string $compositionId,
): MessagePropertiesMutableInterface {
$properties = $service->entityFresh()->getProperties();
$bodyTextPlain = isset($message['body']['text']) ? (string)$message['body']['text'] : '';
$bodyTextHtml = isset($message['body']['html']) ? (string)$message['body']['html'] : '';
$properties->setFrom($sender);
$to = $this->mapAddresses($message['to'] ?? []);
if ($to !== []) {
$properties->setTo(...$to);
}
$cc = $this->mapAddresses($message['cc'] ?? []);
if ($cc !== []) {
$properties->setCc(...$cc);
}
$bcc = $this->mapAddresses($message['bcc'] ?? []);
if ($bcc !== []) {
$properties->setBcc(...$bcc);
}
$replyTo = $this->mapAddresses($message['replyTo'] ?? []);
if ($replyTo !== []) {
$properties->setReplyTo(...$replyTo);
}
$properties->setSubject((string)($message['subject'] ?? ''));
$properties->setBodyTextPlain($bodyTextPlain);
$properties->setBodyTextHtml($bodyTextHtml);
if (isset($message['flags']) && is_array($message['flags'])) {
$properties->setFlags($message['flags']);
}
$attachmentObjects = [];
foreach ($attachments as $attachment) {
if (!isset($attachment['identifier']) || !is_string($attachment['identifier']) || $attachment['identifier'] === '') {
continue;
}
$composedAttachment = $composed['attachments'][$attachment['identifier']] ?? null;
if (!is_array($composedAttachment)) {
continue;
}
$attachmentObjects[] = MessagePart::fromArray([
'partId' => $attachment['identifier'],
'blobId' => $attachment['blobId'] ?? $composedAttachment['blobId'] ?? null,
'size' => $composedAttachment['size'] ?? null,
'name' => $composedAttachment['name'] ?? 'unknown.bin',
'type' => $composedAttachment['type'] ?? 'application/octet-stream',
'disposition' => (($attachment['inline'] ?? $composedAttachment['inline'] ?? false) === true) ? 'inline' : 'attachment',
'content' => $this->compositionStore->attachmentFetchData($tenantId, $userId, $compositionId, $attachment['identifier']),
'cid' => $attachment['contentId'] ?? $attachment['cid'] ?? $composedAttachment['contentId'] ?? $composedAttachment['cid'] ?? null,
]);
}
if ($attachmentObjects !== []) {
$properties->setAttachments(...$attachmentObjects);
}
return $properties;
}
public function attachmentAdd(string $tenantId, string $userId, string $composition, array ...$attachments): array {
$result = [
'composition' => $composition,
'attachments' => [],
];
$failed = [];
$compositionChanged = false;
// Construct the snapshot mutation that will run while the composition is locked.
$addAttachments = function (?array $composed) use ($tenantId, $userId, $composition, $attachments, &$result, &$failed, &$compositionChanged): ?array {
if ($composed === null) {
$result['disposition'] = 'error';
$result['error'] = [
'type' => 'composition_not_found',
'message' => 'Composition not found',
];
return null;
}
$uploads = [];
$documents = [];
foreach ($attachments as $attachment) {
if (isset($attachment['origin']) && $attachment['origin'] === 'documents') {
$documents[] = $attachment;
} elseif (isset($attachment['origin']) && $attachment['origin'] === 'device') {
$uploads[] = $attachment;
}
}
if ($uploads !== []) {
$this->attachmentAddFromDevice($tenantId, $userId, $composition, $uploads, $composed);
}
if ($documents !== []) {
$failed = $this->attachmentAddFromDocuments($tenantId, $userId, $composition, $documents, $composed);
}
$deviceAttachmentsChanged = $uploads !== [];
$documentAttachmentsChanged = count($failed) < count($documents);
if ($deviceAttachmentsChanged || $documentAttachmentsChanged) {
$composed['revision'] = (int)($composed['revision'] ?? 0) + 1;
$composed = $this->markRemoteDirty($composed);
$compositionChanged = true;
}
return $composed;
};
// Execute the mutation and atomically persist the snapshot it returns.
$composed = $this->compositionStore->compositionSave(
$tenantId,
$userId,
$composition,
$addAttachments,
);
if ($composed === null) {
return $result;
}
// construct the result
$result['attachments'] = $composed['attachments'];
$result['failed'] = $failed;
$result['disposition'] = match (true) {
$failed === [] => 'added',
$result['attachments'] !== [] => 'partial',
default => 'error',
};
if ($result['disposition'] === 'error') {
$result['error'] = [
'type' => 'attachment_add_failed',
'message' => 'None of the requested attachments could be added',
];
}
if ($compositionChanged) {
$result['revision'] = (int)($composed['revision'] ?? 0);
$event = new CompositionSavedEvent($tenantId, $userId, $composition, (int)($composed['revision'] ?? 0));
$this->events->dispatch($event);
}
return $result;
}
/**
* Stage device-uploaded (base64 payload) attachment entries
*/
private function attachmentAddFromDevice(string $tenantId, string $userId, string $composition, array $uploads, array &$composed): void {
foreach ($uploads as $attachment) {
$identifier = (isset($attachment['identifier']) && is_string($attachment['identifier']) && $attachment['identifier'] !== '')
? $attachment['identifier']
: UUID::v4();
$decoded = base64_decode((string) ($attachment['data'] ?? ''), true);
if ($decoded === false) {
throw new InvalidArgumentException('Attachment payload is not valid base64');
}
$data = new BinaryResource(
$attachment['name'] ?? 'unknown.bin',
$attachment['type'] ?? 'application/octet-stream',
$this->stringToGenerator($decoded),
);
$meta = $this->compositionStore->attachmentStageFromStream(
tenantId: $tenantId,
userId: $userId,
compositionId: $composition,
attachmentId: $identifier,
data: $data,
);
$meta['origin'] = 'device';
$composed['attachments'][$meta['identifier']] = $meta;
}
}
private function resolveDocumentsManager(): ?DocumentsManager {
$module = $this->moduleManager->fetch(self::DOCUMENTS_MODULE_HANDLE);
if ($module === null || !$module->enabled()) {
return null;
}
if (!$this->container->has(DocumentsManager::class)) {
return null;
}
return $this->container->get(DocumentsManager::class);
}
/**
* Stage documents-sourced attachment entries
*/
private function attachmentAddFromDocuments(string $tenantId, string $userId, string $composition, array $sourced, array &$composed): array {
$failed = [];
// The documents module is an optional dependency, so we must resolve it
// lazily and handle the case where it is not installed or enabled.
$documentsManager = $this->resolveDocumentsManager();
if ($documentsManager === null) {
foreach ($sourced as $attachment) {
$failed[] = [
'identifier' => (string) ($attachment['source'] ?? ''),
'message' => 'Documents module is not installed or enabled',
];
}
return $failed;
}
$requested = [];
foreach ($sourced as $attachment) {
$rawIdentifier = (string) $attachment['source'];
try {
$parsed = ResourceIdentifier::fromString($rawIdentifier);
} catch (InvalidArgumentException) {
$failed[] = ['identifier' => $rawIdentifier, 'message' => 'Invalid document identifier'];
continue;
}
if (!$parsed instanceof EntityIdentifier) {
$failed[] = ['identifier' => $rawIdentifier, 'message' => 'Invalid document identifier'];
continue;
}
$requested[] = ['attachment' => $attachment, 'identifier' => $parsed];
}
if ($requested === []) {
return $failed;
}
$entities = $documentsManager->entityFetchBulk($tenantId, $userId, ...array_column($requested, 'identifier'));
$entitiesByUrn = [];
foreach ($entities as $entity) {
$entitiesByUrn[$entity->urn()] = $entity;
}
foreach ($requested as ['attachment' => $attachment, 'identifier' => $entityIdentifier]) {
$urn = (string) $entityIdentifier;
$entity = $entitiesByUrn[$urn] ?? null;
if ($entity === null) {
$failed[] = ['identifier' => $urn, 'message' => 'Document not found or access denied'];
continue;
}
$resource = $documentsManager->entityReadStream($tenantId, $userId, $entityIdentifier);
if ($resource === null) {
$failed[] = ['identifier' => $urn, 'message' => 'Document content could not be read'];
continue;
}
$identifier = (isset($attachment['identifier']) && is_string($attachment['identifier']) && $attachment['identifier'] !== '')
? $attachment['identifier']
: UUID::v4();
$properties = $entity->getProperties();
$data = new BinaryResource($properties->getLabel(), $properties->getMime(), $this->streamToGenerator($resource));
$meta = $this->compositionStore->attachmentStageFromStream(
tenantId: $tenantId,
userId: $userId,
compositionId: $composition,
attachmentId: $identifier,
data: $data,
);
$meta['origin'] = 'documents';
$meta['source'] = $urn;
$composed['attachments'][$meta['identifier']] = $meta;
}
return $failed;
}
public function attachmentRemove(string $tenantId, string $userId, string $composition, string $identifier): array {
$result = [
'composition' => $composition,
'identifier' => $identifier,
];
// Construct the snapshot mutation that will run while the composition is locked.
$removeAttachment = function (?array $composed) use ($identifier, &$result): ?array {
if ($composed === null) {
$result['disposition'] = 'error';
$result['error'] = [
'type' => 'composition_not_found',
'message' => 'Composition not found',
];
return null;
}
if (!isset($composed['attachments'][$identifier])) {
$result['disposition'] = 'error';
$result['error'] = [
'type' => 'attachment_not_found',
'message' => 'Attachment not found',
];
return null;
}
unset($composed['attachments'][$identifier]);
$composed['revision'] = (int)($composed['revision'] ?? 0) + 1;
$composed = $this->markRemoteDirty($composed);
$result['disposition'] = 'removed';
$result['revision'] = $composed['revision'];
return $composed;
};
// Execute the mutation and atomically persist the snapshot it returns.
$composed = $this->compositionStore->compositionSave(
$tenantId,
$userId,
$composition,
$removeAttachment,
);
if (($result['disposition'] ?? null) === 'removed' && $composed !== null) {
$event = new CompositionSavedEvent($tenantId, $userId, $composition, (int)($composed['revision'] ?? 0));
$this->events->dispatch($event);
}
return $result;
}
private function markRemoteDirty(array $composed): array {
$remote = isset($composed['remote']) && is_array($composed['remote'])
? $composed['remote']
: [];
$remote['status'] = 'dirty';
$remote['entity'] ??= null;
$remote['error'] = null;
$composed['remote'] = $remote;
return $composed;
}
private function resolveDraftCollection(ServiceBaseInterface $service): CollectionIdentifier {
$configuredTarget = $service->getAuxiliary()['draftTarget'] ?? null;
if ($configuredTarget !== null && (string)$configuredTarget !== '') {
return new CollectionIdentifier(
$service->provider(),
(string)$service->identifier(),
(string)$configuredTarget,
);
}
$filter = $service->collectionListFilter();
$filter->condition('role', CollectionRoles::Drafts->value);
$collections = $service->collectionList('', $filter);
$collection = reset($collections);
if (!$collection instanceof CollectionBaseInterface || $collection->identifier() === null) {
throw new RuntimeException("Mail service '{$service->identifier()}' has no Drafts collection");
}
return new CollectionIdentifier(
$service->provider(),
(string)$service->identifier(),
(string)$collection->identifier(),
);
}
private function remoteEntityIdentifier(mixed $value): ?EntityIdentifier {
if (!is_string($value) || $value === '') {
return null;
}
$identifier = ResourceIdentifier::fromString($value);
if (!$identifier instanceof EntityIdentifier) {
throw new RuntimeException("Invalid remote draft identifier '$value'");
}
return $identifier;
}
/**
* @param array<int,array|string> $entries
* @return array<int,Address>
*/
private function mapAddresses(array $entries): array {
$addresses = [];
foreach ($entries as $entry) {
if (is_array($entry)) {
$address = Address::fromArray($entry);
if ($address->getAddress() !== '') {
$addresses[] = $address;
}
continue;
}
if (is_string($entry) && $entry !== '') {
$address = Address::fromString($entry);
if ($address->getAddress() !== '') {
$addresses[] = $address;
}
}
}
return $addresses;
}
/**
* Wrap an in-memory byte string in a single-chunk Generator.
*/
private function stringToGenerator(string $bytes): \Generator {
yield $bytes;
}
/**
* Wrap a raw PHP stream resource in a Generator yielding chunks, closing it once exhausted.
*/
private function streamToGenerator($resource): \Generator {
while (!feof($resource)) {
yield fread($resource, 65536);
}
fclose($resource);
}
}