75 lines
1.8 KiB
Go
75 lines
1.8 KiB
Go
package app
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import (
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"encoding/json"
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"net/netip"
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"os"
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"strings"
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"time"
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egressutilpkg "selective-vpn-api/app/egressutil"
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)
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func egressIPEndpoints() []string {
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return egressutilpkg.IPEndpoints(os.Getenv("SVPN_EGRESS_IP_ENDPOINTS"))
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}
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func egressGeoEndpointsForIP(ip string) []string {
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return egressutilpkg.GeoEndpointsForIP(os.Getenv("SVPN_EGRESS_GEO_ENDPOINTS"), ip)
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}
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func egressLimitEndpointsForNetns(in []string) []string {
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maxN := envInt("SVPN_EGRESS_NETNS_MAX_ENDPOINTS", 1)
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return egressutilpkg.LimitEndpoints(in, maxN)
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}
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func egressJoinErrorsCompact(errs []string) string {
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return egressutilpkg.JoinErrorsCompact(errs)
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}
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func egressSingBoxSOCKSProxyURL(client TransportClient) string {
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if client.Kind != TransportClientSingBox {
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return ""
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}
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path := transportSingBoxConfigPath(client)
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if strings.TrimSpace(path) == "" {
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return ""
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}
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data, err := os.ReadFile(path)
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if err != nil || len(data) == 0 {
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return ""
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}
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var root map[string]any
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if err := json.Unmarshal(data, &root); err != nil {
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return ""
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}
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return egressutilpkg.ParseSingBoxSOCKSProxyURL(root)
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}
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func egressInterfaceBindAddress(iface string) string {
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iface = strings.TrimSpace(iface)
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if iface == "" {
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return ""
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}
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stdout, _, code, err := runCommandTimeout(1500*time.Millisecond, "ip", "-4", "-o", "addr", "show", "dev", iface, "scope", "global")
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if err != nil || code != 0 {
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return ""
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}
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for _, line := range strings.Split(stdout, "\n") {
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fields := strings.Fields(strings.TrimSpace(line))
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for i := 0; i < len(fields); i++ {
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if fields[i] != "inet" || i+1 >= len(fields) {
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continue
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}
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ip := strings.TrimSpace(fields[i+1])
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if slash := strings.Index(ip, "/"); slash > 0 {
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ip = ip[:slash]
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}
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if addr, err := netip.ParseAddr(ip); err == nil && addr.Is4() {
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return addr.String()
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}
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}
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}
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return ""
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}
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