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Filter out non stun: server addresses in ParseIceServers

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itchyonion 2023-01-04 15:25:52 -08:00
parent 66269c07d8
commit 990fcb4127
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GPG key ID: 4B87B720348500EA
2 changed files with 21 additions and 17 deletions
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17
client/lib/lib_test.go
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@ -190,22 +190,13 @@ func TestICEServerParser(t *testing.T) {
length int length int
}{ }{
{ {
[]string{"stun:stun.l.google.com:19302"}, []string{"stun:stun.l.google.com:19302", "stun:stun.ekiga.net"},
[][]string{[]string{"stun:stun.l.google.com:19302"}}, [][]string{[]string{"stun:stun.l.google.com:19302"}, []string{"stun:stun.ekiga.net:3478"}},
1,
},
{
[]string{"stun:stun.l.google.com", "stuns:stun.ekiga.net"},
[][]string{[]string{"stun:stun.l.google.com:3478"}, []string{"stuns:stun.ekiga.net:5349"}},
2, 2,
}, },
{ {
[]string{"stuns:stun.l.google.com:19302", "turn:relay.metered.ca:80"}, []string{"stun:stun1.l.google.com:19302", "stun.ekiga.net", "stun:stun.example.com:1234/path?query",
[][]string{[]string{"stuns:stun.l.google.com:19302"}, []string{"turn:relay.metered.ca:80?transport=udp"}}, "https://example.com", "turn:relay.metered.ca:80?transport=udp"},
2,
},
{
[]string{"stun:stun1.l.google.com:19302", "stun.ekiga.net", "stun:stun.example.com:1234/path?query", "https://example.com"},
[][]string{[]string{"stun:stun1.l.google.com:19302"}}, [][]string{[]string{"stun:stun1.l.google.com:19302"}},
1, 1,
}, },

21
client/lib/snowflake.go
View file

@ -31,6 +31,7 @@ import (
"log" "log"
"math/rand" "math/rand"
"net" "net"
"net/url"
"strings" "strings"
"time" "time"
@ -268,13 +269,25 @@ func parseIceServers(addresses []string) []webrtc.ICEServer {
if len(addresses) == 0 { if len(addresses) == 0 {
return nil return nil
} }
for _, url := range addresses { for _, address := range addresses {
url = strings.TrimSpace(url) address = strings.TrimSpace(address)
// ice.ParseURL recognizes many types of ICE servers,
// but we only support stun over UDP currently
u, err := url.Parse(address)
if err != nil {
log.Printf("Warning: Parsing ICE server %v resulted in error: %v, skipping", address, err)
continue
}
if u.Scheme != "stun" {
log.Printf("Warning: Only stun: (STUN over UDP) servers are supported currently, skipping %v", address)
continue
}
// add default port, other sanity checks // add default port, other sanity checks
parsedURL, err := ice.ParseURL(url) parsedURL, err := ice.ParseURL(address)
if err != nil { if err != nil {
log.Printf("Warning: Parsing ICE server %v resulted in error: %v, skipping", url, err) log.Printf("Warning: Parsing ICE server %v resulted in error: %v, skipping", address, err)
continue continue
} }