mirror of https://github.com/portainer/portainer
48 lines
1.0 KiB
Go
48 lines
1.0 KiB
Go
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package libhelm
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import (
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"fmt"
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"net/http"
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"net/url"
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"path"
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"strings"
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"time"
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"github.com/pkg/errors"
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)
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const invalidChartRepo = "%q is not a valid chart repository or cannot be reached"
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func ValidateHelmRepositoryURL(repoUrl string) error {
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if repoUrl == "" {
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return errors.New("URL is required")
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}
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url, err := url.ParseRequestURI(repoUrl)
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if err != nil {
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return errors.Wrap(err, fmt.Sprintf("invalid helm chart URL: %s", repoUrl))
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}
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if !strings.EqualFold(url.Scheme, "http") && !strings.EqualFold(url.Scheme, "https") {
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return errors.New(fmt.Sprintf("invalid helm chart URL: %s", repoUrl))
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}
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url.Path = path.Join(url.Path, "index.yaml")
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var client = &http.Client{
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Timeout: time.Second * 10,
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}
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response, err := client.Head(url.String())
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if err != nil {
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return errors.Wrapf(err, invalidChartRepo, repoUrl)
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}
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// Success is indicated with 2xx status codes
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statusOK := response.StatusCode >= 200 && response.StatusCode < 300
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if !statusOK {
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return errors.Errorf(invalidChartRepo, repoUrl)
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}
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return nil
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}
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