60 lines
1.9 KiB
Go
60 lines
1.9 KiB
Go
package openvpn
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import (
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"context"
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"errors"
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"fmt"
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"github.com/qdm12/gluetun/internal/configuration"
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"github.com/qdm12/gluetun/internal/firewall"
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"github.com/qdm12/gluetun/internal/models"
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"github.com/qdm12/gluetun/internal/openvpn/config"
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"github.com/qdm12/gluetun/internal/openvpn/custom"
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"github.com/qdm12/gluetun/internal/provider"
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)
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var (
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errBuildConfig = errors.New("failed building configuration")
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errWriteConfig = errors.New("failed writing configuration to file")
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errWriteAuth = errors.New("failed writing auth to file")
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errFirewall = errors.New("failed allowing VPN connection through firewall")
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)
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// Setup sets OpenVPN up using the configurators and settings given.
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// It returns a serverName for port forwarding (PIA) and an error if it fails.
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func Setup(ctx context.Context, fw firewall.VPNConnectionSetter,
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openvpnConf config.Interface, providerConf provider.Provider,
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openVPNSettings configuration.OpenVPN, providerSettings configuration.Provider) (
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serverName string, err error) {
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var connection models.OpenVPNConnection
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var lines []string
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if openVPNSettings.Config == "" {
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connection, err = providerConf.GetOpenVPNConnection(providerSettings.ServerSelection)
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if err == nil {
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lines = providerConf.BuildConf(connection, openVPNSettings)
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}
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} else {
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lines, connection, err = custom.BuildConfig(openVPNSettings)
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}
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if err != nil {
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return "", fmt.Errorf("%w: %s", errBuildConfig, err)
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}
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if err := openvpnConf.WriteConfig(lines); err != nil {
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return "", fmt.Errorf("%w: %s", errWriteConfig, err)
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}
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if openVPNSettings.User != "" {
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err := openvpnConf.WriteAuthFile(openVPNSettings.User, openVPNSettings.Password)
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if err != nil {
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return "", fmt.Errorf("%w: %s", errWriteAuth, err)
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}
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}
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if err := fw.SetVPNConnection(ctx, connection); err != nil {
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return "", fmt.Errorf("%w: %s", errFirewall, err)
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}
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return connection.Hostname, nil
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}
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