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https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake.git
synced 2025-10-13 20:11:19 -04:00
Filter out non stun: server addresses in ParseIceServers
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parent
66269c07d8
commit
990fcb4127
2 changed files with 21 additions and 17 deletions
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@ -31,6 +31,7 @@ import (
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"log"
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"math/rand"
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"net"
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"net/url"
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"strings"
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"time"
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@ -268,13 +269,25 @@ func parseIceServers(addresses []string) []webrtc.ICEServer {
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if len(addresses) == 0 {
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return nil
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}
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for _, url := range addresses {
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url = strings.TrimSpace(url)
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for _, address := range addresses {
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address = strings.TrimSpace(address)
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// ice.ParseURL recognizes many types of ICE servers,
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// but we only support stun over UDP currently
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u, err := url.Parse(address)
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if err != nil {
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log.Printf("Warning: Parsing ICE server %v resulted in error: %v, skipping", address, err)
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continue
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}
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if u.Scheme != "stun" {
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log.Printf("Warning: Only stun: (STUN over UDP) servers are supported currently, skipping %v", address)
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continue
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}
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// add default port, other sanity checks
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parsedURL, err := ice.ParseURL(url)
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parsedURL, err := ice.ParseURL(address)
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if err != nil {
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log.Printf("Warning: Parsing ICE server %v resulted in error: %v, skipping", url, err)
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log.Printf("Warning: Parsing ICE server %v resulted in error: %v, skipping", address, err)
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continue
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}
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