55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
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package hidemyass
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import (
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"context"
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"io"
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"net/http"
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"regexp"
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"strings"
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)
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var indexOpenvpnLinksRegex = regexp.MustCompile(`<a[ ]+href=".+\.ovpn">.+\.ovpn</a>`)
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func fetchIndex(ctx context.Context, client *http.Client, indexURL string) (
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openvpnURLs []string, err error) {
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request, err := http.NewRequestWithContext(ctx, http.MethodGet, indexURL, nil)
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if err != nil {
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return nil, err
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}
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response, err := client.Do(request)
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if err != nil {
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return nil, err
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}
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defer response.Body.Close()
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htmlCode, err := io.ReadAll(response.Body)
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if err != nil {
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return nil, err
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}
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if !strings.HasSuffix(indexURL, "/") {
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indexURL += "/"
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}
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lines := strings.Split(string(htmlCode), "\n")
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for _, line := range lines {
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found := indexOpenvpnLinksRegex.FindString(line)
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if len(found) == 0 {
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continue
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}
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const prefix = `.ovpn">`
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const suffix = `</a>`
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startIndex := strings.Index(found, prefix) + len(prefix)
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endIndex := strings.Index(found, suffix)
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filename := found[startIndex:endIndex]
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openvpnURL := indexURL + filename
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if !strings.HasSuffix(openvpnURL, ".ovpn") {
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continue
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}
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openvpnURLs = append(openvpnURLs, openvpnURL)
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}
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return openvpnURLs, nil
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}
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