1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
use crate::SdpOffer;
use crate::core::SdpTransport;
use crate::media::SdpMediaType;
use crate::SdpCodecIdentifier;
#[derive(Debug, PartialEq, Clone)]
pub enum SanitizerError {
SanitizeError
}
pub struct SdpSanitizerConfig {
pub allowed_transports: Vec<SdpTransport>,
pub allowed_media_types: Vec<SdpMediaType>,
pub allowed_codecs: Vec<SdpCodecIdentifier>
}
pub struct SdpSanitizer {
cfg: SdpSanitizerConfig
}
impl SdpSanitizer {
pub fn new(cfg: SdpSanitizerConfig) -> SdpSanitizer {
SdpSanitizer { cfg }
}
pub fn sanitize(&self, sdp: SdpOffer) -> Result<SdpOffer, SanitizerError> {
Ok(self._sanitize(sdp)?)
}
fn _sanitize(&self, mut sdp: SdpOffer) -> Result<SdpOffer, SanitizerError> {
sdp.media.retain(|media| {
if !self.cfg.allowed_media_types.contains(&media.media) {
return false;
}
if !self.cfg.allowed_transports.contains(&media.transport) {
return false;
}
true
});
for media in sdp.media.iter_mut() {
media.formats.retain(|format| {
self.cfg.allowed_codecs.contains(&format.codec)
});
}
Ok(sdp)
}
}