41 lines
780 B
Go
41 lines
780 B
Go
package httpclient
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import (
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"fmt"
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"log"
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"net/http"
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"os"
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"strings"
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"github.com/hashicorp/terraform/version"
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)
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const userAgentFormat = "Terraform/%s"
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const uaEnvVar = "TF_APPEND_USER_AGENT"
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func UserAgentString() string {
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ua := fmt.Sprintf(userAgentFormat, version.Version)
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if add := os.Getenv(uaEnvVar); add != "" {
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add = strings.TrimSpace(add)
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if len(add) > 0 {
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ua += " " + add
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log.Printf("[DEBUG] Using modified User-Agent: %s", ua)
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}
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}
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return ua
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}
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type userAgentRoundTripper struct {
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inner http.RoundTripper
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userAgent string
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}
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func (rt *userAgentRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
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if _, ok := req.Header["User-Agent"]; !ok {
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req.Header.Set("User-Agent", rt.userAgent)
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}
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return rt.inner.RoundTrip(req)
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}
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