62 lines
1.7 KiB
Go
62 lines
1.7 KiB
Go
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package pia
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import (
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"archive/zip"
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"bytes"
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"fmt"
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"io/ioutil"
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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) DownloadOvpnConfig(encryption models.PIAEncryption,
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protocol models.NetworkProtocol, region models.PIARegion) (lines []string, err error) {
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c.logger.Info("%s: downloading openvpn configuration files", logPrefix)
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URL := buildZipURL(encryption, protocol)
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content, status, err := c.client.GetContent(URL)
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if err != nil {
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return nil, err
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} else if status != 200 {
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return nil, fmt.Errorf("HTTP Get %s resulted in HTTP status code %d", URL, status)
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}
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filename := fmt.Sprintf("%s.ovpn", region)
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fileContent, err := getFileInZip(content, filename)
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if err != nil {
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return nil, fmt.Errorf("%s: %w", URL, err)
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}
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lines = strings.Split(string(fileContent), "\n")
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return lines, nil
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}
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func buildZipURL(encryption models.PIAEncryption, protocol models.NetworkProtocol) (URL string) {
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URL = string(constants.PIAOpenVPNURL) + "/openvpn"
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if encryption == constants.PIAEncryptionStrong {
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URL += "-strong"
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}
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if protocol == constants.TCP {
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URL += "-tcp"
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}
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return URL + ".zip"
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}
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func getFileInZip(zipContent []byte, filename string) (fileContent []byte, err error) {
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contentLength := int64(len(zipContent))
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r, err := zip.NewReader(bytes.NewReader(zipContent), contentLength)
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if err != nil {
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return nil, err
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}
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for _, f := range r.File {
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if f.Name == filename {
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readCloser, err := f.Open()
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if err != nil {
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return nil, err
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}
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defer readCloser.Close()
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return ioutil.ReadAll(readCloser)
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}
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}
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return nil, fmt.Errorf("%s not found in zip archive file", filename)
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}
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