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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 library multipart_request; | 5 library multipart_request; |
6 | 6 |
7 import 'dart:async'; | 7 import 'dart:async'; |
8 import 'dart:io'; | 8 import 'dart:io'; |
9 import 'dart:math'; | 9 import 'dart:math'; |
10 import 'dart:uri'; | 10 import 'dart:uri'; |
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75 /// are written to this sink at that point will be used. | 75 /// are written to this sink at that point will be used. |
76 Sink<MultipartFile> get files => _files; | 76 Sink<MultipartFile> get files => _files; |
77 | 77 |
78 /// The private version of [files], typed so that the underlying collection is | 78 /// The private version of [files], typed so that the underlying collection is |
79 /// accessible. | 79 /// accessible. |
80 final CollectionSink<MultipartFile> _files; | 80 final CollectionSink<MultipartFile> _files; |
81 | 81 |
82 /// Creates a new [MultipartRequest]. | 82 /// Creates a new [MultipartRequest]. |
83 MultipartRequest(String method, Uri url) | 83 MultipartRequest(String method, Uri url) |
84 : super(method, url), | 84 : super(method, url), |
85 fields = <String>{}, | 85 fields = <String, String>{}, |
86 _files = new CollectionSink<MultipartFile>(<MultipartFile>[]); | 86 _files = new CollectionSink<MultipartFile>(<MultipartFile>[]); |
87 | 87 |
88 /// Freezes all mutable fields and returns a single-subscription [ByteStream] | 88 /// Freezes all mutable fields and returns a single-subscription [ByteStream] |
89 /// that will emit the request body. | 89 /// that will emit the request body. |
90 ByteStream finalize() { | 90 ByteStream finalize() { |
91 // TODO(nweiz): freeze fields and files | 91 // TODO(nweiz): freeze fields and files |
92 var boundary = _boundaryString(_BOUNDARY_LENGTH); | 92 var boundary = _boundaryString(_BOUNDARY_LENGTH); |
93 headers['content-type'] = 'multipart/form-data; boundary="$boundary"'; | 93 headers['content-type'] = 'multipart/form-data; boundary="$boundary"'; |
94 headers['content-transfer-encoding'] = 'binary'; | 94 headers['content-transfer-encoding'] = 'binary'; |
95 super.finalize(); | 95 super.finalize(); |
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166 String _boundaryString(int length) { | 166 String _boundaryString(int length) { |
167 var prefix = "dart-http-boundary-"; | 167 var prefix = "dart-http-boundary-"; |
168 var list = new List<int>.fixedLength(length - prefix.length); | 168 var list = new List<int>.fixedLength(length - prefix.length); |
169 for (var i = 0; i < list.length; i++) { | 169 for (var i = 0; i < list.length; i++) { |
170 list[i] = _BOUNDARY_CHARACTERS[ | 170 list[i] = _BOUNDARY_CHARACTERS[ |
171 _random.nextInt(_BOUNDARY_CHARACTERS.length)]; | 171 _random.nextInt(_BOUNDARY_CHARACTERS.length)]; |
172 } | 172 } |
173 return "$prefix${new String.fromCharCodes(list)}"; | 173 return "$prefix${new String.fromCharCodes(list)}"; |
174 } | 174 } |
175 } | 175 } |
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