55 lines
1.7 KiB
Go
55 lines
1.7 KiB
Go
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package pia
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import (
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"fmt"
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"net"
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"strconv"
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"strings"
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"github.com/qdm12/private-internet-access-docker/internal/constants"
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"github.com/qdm12/private-internet-access-docker/internal/models"
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)
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func (c *configurator) ParseConfig(lines []string) (IPs []net.IP, port uint16, device models.VPNDevice, err error) {
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c.logger.Info("%s: parsing openvpn configuration", logPrefix)
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remoteLineFound := false
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deviceLineFound := false
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for _, line := range lines {
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if strings.HasPrefix(line, "remote ") {
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remoteLineFound = true
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words := strings.Fields(line)
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if len(words) != 3 {
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return nil, 0, "", fmt.Errorf("line %q misses information", line)
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}
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host := words[1]
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if err := c.verifyPort(words[2]); err != nil {
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return nil, 0, "", fmt.Errorf("line %q has an invalid port: %w", line, err)
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}
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portUint64, _ := strconv.ParseUint(words[2], 10, 16)
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port = uint16(portUint64)
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IPs, err = c.lookupIP(host)
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if err != nil {
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return nil, 0, "", err
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}
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} else if strings.HasPrefix(line, "dev ") {
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deviceLineFound = true
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fields := strings.Fields(line)
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if len(fields) != 2 {
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return nil, 0, "", fmt.Errorf("line %q misses information", line)
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}
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device = models.VPNDevice(fields[1] + "0")
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if device != constants.TUN && device != constants.TAP {
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return nil, 0, "", fmt.Errorf("device %q is not valid", device)
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}
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}
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}
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if remoteLineFound && deviceLineFound {
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c.logger.Info("%s: Found %d PIA server IP addresses, port %d and device %s", logPrefix, len(IPs), port, device)
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return IPs, port, device, nil
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} else if !remoteLineFound {
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return nil, 0, "", fmt.Errorf("remote line not found in Openvpn configuration")
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} else {
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return nil, 0, "", fmt.Errorf("device line not found in Openvpn configuration")
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}
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}
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