1// Copyright (c) 2017 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
2//
3// This Source Code Form is subject to the terms of the Mozilla Public
4// License, v. 2.0. If a copy of the MPL was not distributed with this
5// file, You can obtain one at http://mozilla.org/MPL/2.0/.
6
7use crate::iq::IqSetPayload;
8use crate::util::helpers::Base64;
9
10generate_id!(
11 /// An identifier matching a stream.
12 StreamId
13);
14
15generate_attribute!(
16/// Which stanza type to use to exchange data.
17Stanza, "stanza", {
18 /// `<iq/>` gives a feedback on whether the chunk has been received or not,
19 /// which is useful in the case the recipient might not receive them in a
20 /// timely manner, or to do your own throttling based on the results.
21 Iq => "iq",
22
23 /// `<message/>` can be faster, since it doesn’t require any feedback, but in
24 /// practice it will be throttled by the servers on the way.
25 Message => "message",
26}, Default = Iq);
27
28generate_element!(
29/// Starts an In-Band Bytestream session with the given parameters.
30Open, "open", IBB,
31attributes: [
32 /// Maximum size in bytes for each chunk.
33 block_size: Required<u16> = "block-size",
34
35 /// The identifier to be used to create a stream.
36 sid: Required<StreamId> = "sid",
37
38 /// Which stanza type to use to exchange data.
39 stanza: Default<Stanza> = "stanza",
40]);
41
42impl IqSetPayload for Open {}
43
44generate_element!(
45/// Exchange a chunk of data in an open stream.
46Data, "data", IBB,
47 attributes: [
48 /// Sequence number of this chunk, must wraparound after 65535.
49 seq: Required<u16> = "seq",
50
51 /// The identifier of the stream on which data is being exchanged.
52 sid: Required<StreamId> = "sid"
53 ],
54 text: (
55 /// Vector of bytes to be exchanged.
56 data: Base64<Vec<u8>>
57 )
58);
59
60impl IqSetPayload for Data {}
61
62generate_element!(
63/// Close an open stream.
64Close, "close", IBB,
65attributes: [
66 /// The identifier of the stream to be closed.
67 sid: Required<StreamId> = "sid",
68]);
69
70impl IqSetPayload for Close {}
71
72#[cfg(test)]
73mod tests {
74 use super::*;
75 use crate::util::error::Error;
76 use crate::Element;
77 use std::convert::TryFrom;
78
79 #[cfg(target_pointer_width = "32")]
80 #[test]
81 fn test_size() {
82 assert_size!(StreamId, 12);
83 assert_size!(Stanza, 1);
84 assert_size!(Open, 16);
85 assert_size!(Data, 28);
86 assert_size!(Close, 12);
87 }
88
89 #[cfg(target_pointer_width = "64")]
90 #[test]
91 fn test_size() {
92 assert_size!(StreamId, 24);
93 assert_size!(Stanza, 1);
94 assert_size!(Open, 32);
95 assert_size!(Data, 56);
96 assert_size!(Close, 24);
97 }
98
99 #[test]
100 fn test_simple() {
101 let sid = StreamId(String::from("coucou"));
102
103 let elem: Element =
104 "<open xmlns='http://jabber.org/protocol/ibb' block-size='3' sid='coucou'/>"
105 .parse()
106 .unwrap();
107 let open = Open::try_from(elem).unwrap();
108 assert_eq!(open.block_size, 3);
109 assert_eq!(open.sid, sid);
110 assert_eq!(open.stanza, Stanza::Iq);
111
112 let elem: Element =
113 "<data xmlns='http://jabber.org/protocol/ibb' seq='0' sid='coucou'>AAAA</data>"
114 .parse()
115 .unwrap();
116 let data = Data::try_from(elem).unwrap();
117 assert_eq!(data.seq, 0);
118 assert_eq!(data.sid, sid);
119 assert_eq!(data.data, vec!(0, 0, 0));
120
121 let elem: Element = "<close xmlns='http://jabber.org/protocol/ibb' sid='coucou'/>"
122 .parse()
123 .unwrap();
124 let close = Close::try_from(elem).unwrap();
125 assert_eq!(close.sid, sid);
126 }
127
128 #[test]
129 fn test_invalid() {
130 let elem: Element = "<open xmlns='http://jabber.org/protocol/ibb'/>"
131 .parse()
132 .unwrap();
133 let error = Open::try_from(elem).unwrap_err();
134 let message = match error {
135 Error::ParseError(string) => string,
136 _ => panic!(),
137 };
138 assert_eq!(message, "Required attribute 'block-size' missing.");
139
140 let elem: Element = "<open xmlns='http://jabber.org/protocol/ibb' block-size='-5'/>"
141 .parse()
142 .unwrap();
143 let error = Open::try_from(elem).unwrap_err();
144 let message = match error {
145 Error::ParseIntError(error) => error,
146 _ => panic!(),
147 };
148 assert_eq!(message.to_string(), "invalid digit found in string");
149
150 let elem: Element = "<open xmlns='http://jabber.org/protocol/ibb' block-size='128'/>"
151 .parse()
152 .unwrap();
153 let error = Open::try_from(elem).unwrap_err();
154 let message = match error {
155 Error::ParseError(error) => error,
156 _ => panic!(),
157 };
158 assert_eq!(message, "Required attribute 'sid' missing.");
159 }
160
161 #[test]
162 fn test_invalid_stanza() {
163 let elem: Element = "<open xmlns='http://jabber.org/protocol/ibb' block-size='128' sid='coucou' stanza='fdsq'/>".parse().unwrap();
164 let error = Open::try_from(elem).unwrap_err();
165 let message = match error {
166 Error::ParseError(string) => string,
167 _ => panic!(),
168 };
169 assert_eq!(message, "Unknown value for 'stanza' attribute.");
170 }
171}