Dat Vu
126 lines
3.5 KiB
Dart
126 lines
3.5 KiB
Dart
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import 'package:equatable/equatable.dart';
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import 'package:http_parser/http_parser.dart';
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import 'package:jmap_dart_client/http/converter/id_nullable_converter.dart';
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import 'package:jmap_dart_client/http/converter/media_type_nullable_converter.dart';
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import 'package:jmap_dart_client/http/converter/part_id_nullable_converter.dart';
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import 'package:jmap_dart_client/http/converter/unsigned_int_nullable_converter.dart';
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import 'package:jmap_dart_client/jmap/account_id.dart';
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import 'package:jmap_dart_client/jmap/core/id.dart';
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import 'package:jmap_dart_client/jmap/core/unsigned_int.dart';
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import 'package:jmap_dart_client/jmap/mail/email/email_body_part.dart';
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import 'package:json_annotation/json_annotation.dart';
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import 'package:uri/uri.dart';
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part 'attachment.g.dart';
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@JsonSerializable(
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includeIfNull: false,
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explicitToJson: true,
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converters: [
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PartIdNullableConverter(),
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IdNullableConverter(),
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UnsignedIntNullableConverter(),
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MediaTypeNullableConverter(),
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],
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)
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class Attachment with EquatableMixin {
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static const String eventICSSubtype = 'ics';
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static const String eventCalendarSubtype = 'calendar';
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static const String applicationRTFType = 'application/rtf';
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static const String _defaultName = 'unknown-attachment';
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final PartId? partId;
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final Id? blobId;
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final UnsignedInt? size;
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final String? name;
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final MediaType? type;
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final String? cid;
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final ContentDisposition? disposition;
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final String? charset;
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Attachment({
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this.partId,
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this.blobId,
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this.size,
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this.name,
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this.type,
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this.cid,
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this.disposition,
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this.charset,
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});
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bool noCid() => cid == null || cid?.isEmpty == true;
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bool hasCid() => cid != null && cid?.isNotEmpty == true;
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bool isDispositionInlined() => disposition == ContentDisposition.inline;
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bool isDispositionUndefined() => disposition == null;
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bool isApplicationRTFInlined() => type?.mimeType == applicationRTFType && isDispositionInlined();
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String getDownloadUrl(String baseDownloadUrl, AccountId accountId) {
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final downloadUriTemplate = UriTemplate(baseDownloadUrl);
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final downloadUri = downloadUriTemplate.expand({
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'accountId' : accountId.id.value,
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'blobId' : '${blobId?.value}',
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'name' : name ?? '',
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'type' : type?.mimeType ?? '',
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});
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return downloadUri;
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}
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String generateFileName() {
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final rawName = (name?.trim().isNotEmpty == true)
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? name!.trim()
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: (blobId != null
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? (type?.subtype != null
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? '${blobId!.value}.${type!.subtype}'
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: blobId!.value)
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: _defaultName);
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final sanitized = rawName.replaceAll(RegExp(r'[\\/:*?"<>|]'), '_').trim();
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// Fall back if sanitized name has no meaningful content (e.g. '???' → '___')
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return sanitized.contains(RegExp(r'[^_\s]')) ? sanitized : _defaultName;
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}
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factory Attachment.fromJson(Map<String, dynamic> json) => _$AttachmentFromJson(json);
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Map<String, dynamic> toJson() => _$AttachmentToJson(this);
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@override
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List<Object?> get props => [
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partId,
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blobId,
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size,
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name,
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type,
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cid,
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disposition,
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charset
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];
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}
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enum ContentDisposition {
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inline,
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attachment,
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other
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}
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extension DispositionStringExtension on String? {
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ContentDisposition? toContentDisposition() {
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if (this != null) {
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switch(this) {
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case 'inline':
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return ContentDisposition.inline;
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case 'attachment':
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return ContentDisposition.attachment;
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default:
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return ContentDisposition.other;
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}
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}
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return null;
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}
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} |