986f076276
Add a new generic container registry client via a new `container` package. Use this to create a command line utility as well as a new upload target for container registries. The code uses the github.com/containers/* project and packages to interact with container registires that is also used by skopeo, podman et al. One if the dependencies is `proglottis/gpgme` that is using cgo to bind libgpgme, so we have to add the corresponding devel package to the BuildRequires as well as installing it on CI. Checks will follow later via an integration test.
51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
package sockets
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import (
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"net"
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"net/url"
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"os"
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"strings"
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"golang.org/x/net/proxy"
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)
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// GetProxyEnv allows access to the uppercase and the lowercase forms of
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// proxy-related variables. See the Go specification for details on these
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// variables. https://golang.org/pkg/net/http/
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func GetProxyEnv(key string) string {
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proxyValue := os.Getenv(strings.ToUpper(key))
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if proxyValue == "" {
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return os.Getenv(strings.ToLower(key))
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}
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return proxyValue
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}
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// DialerFromEnvironment takes in a "direct" *net.Dialer and returns a
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// proxy.Dialer which will route the connections through the proxy using the
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// given dialer.
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func DialerFromEnvironment(direct *net.Dialer) (proxy.Dialer, error) {
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allProxy := GetProxyEnv("all_proxy")
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if len(allProxy) == 0 {
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return direct, nil
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}
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proxyURL, err := url.Parse(allProxy)
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if err != nil {
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return direct, err
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}
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proxyFromURL, err := proxy.FromURL(proxyURL, direct)
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if err != nil {
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return direct, err
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}
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noProxy := GetProxyEnv("no_proxy")
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if len(noProxy) == 0 {
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return proxyFromURL, nil
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}
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perHost := proxy.NewPerHost(proxyFromURL, direct)
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perHost.AddFromString(noProxy)
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return perHost, nil
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}
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