We install an HTTP middleware that adds the "Authorization" header on every HTTP request. However, our asset download process might redirect to a 3rd-party host (Amazon S3) and we want to allow those requests but not require that they are authenticated. Furthermore, we need the ability to specify the `Accept` request header without it being overwritten by middleware, so now middleware only adds headers that are not present in a request.
55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
package factory
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import (
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"fmt"
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"net/http"
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"os"
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"strings"
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"github.com/cli/cli/api"
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"github.com/cli/cli/internal/config"
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"github.com/cli/cli/internal/ghinstance"
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"github.com/cli/cli/pkg/iostreams"
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)
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// generic authenticated HTTP client for commands
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func httpClient(io *iostreams.IOStreams, cfg config.Config, appVersion string, setAccept bool) *http.Client {
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var opts []api.ClientOption
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if verbose := os.Getenv("DEBUG"); verbose != "" {
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logTraffic := strings.Contains(verbose, "api")
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opts = append(opts, api.VerboseLog(io.ErrOut, logTraffic, io.IsStderrTTY()))
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}
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opts = append(opts,
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api.AddHeader("User-Agent", fmt.Sprintf("GitHub CLI %s", appVersion)),
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api.AddHeaderFunc("Authorization", func(req *http.Request) (string, error) {
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if token := os.Getenv("GITHUB_TOKEN"); token != "" {
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return fmt.Sprintf("token %s", token), nil
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}
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hostname := ghinstance.NormalizeHostname(req.URL.Hostname())
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token, err := cfg.Get(hostname, "oauth_token")
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if err != nil || token == "" {
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return "", nil
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}
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return fmt.Sprintf("token %s", token), nil
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}),
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)
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if setAccept {
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opts = append(opts,
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api.AddHeaderFunc("Accept", func(req *http.Request) (string, error) {
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// antiope-preview: Checks
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accept := "application/vnd.github.antiope-preview+json"
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if ghinstance.IsEnterprise(req.URL.Hostname()) {
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// shadow-cat-preview: Draft pull requests
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accept += ", application/vnd.github.shadow-cat-preview"
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}
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return accept, nil
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}),
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)
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}
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return api.NewHTTPClient(opts...)
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}
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