65aaa607ab
Change made by: - running "gvt fetch" on each of the packages mentioned in Godeps/Godeps.json - `rm -rf Godeps` - tweaking the build scripts to not mention Godeps - tweaking the build scripts to test `./lib/...`, `./cmd/...` explicitly (to avoid testing vendor) - tweaking the build scripts to not juggle GOPATH for Godeps and instead set GO15VENDOREXPERIMENT. This also results in some updated packages at the same time I bet. Building with Go 1.3 and 1.4 still *works* but won't use our vendored dependencies - the user needs to have the actual packages in their GOPATH then, which they'll get with a normal "go get". Building with Go 1.6+ will get our vendored dependencies by default even when not using our build script, which is nice. By doing this we gain some freedom in that we can pick and choose manually what to include in vendor, as it's not based on just dependency analysis of our own code. This is also a risk as we might pick up dependencies we are unaware of, as the build may work locally with those packages present in GOPATH. On the other hand the build server will detect this as it has no packages in it's GOPATH beyond what is included in the repo. Recommended tool to manage dependencies is github.com/FiloSottile/gvt.
95 lines
2.4 KiB
Go
95 lines
2.4 KiB
Go
// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package proxy provides support for a variety of protocols to proxy network
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// data.
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package proxy // import "golang.org/x/net/proxy"
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import (
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"errors"
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"net"
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"net/url"
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"os"
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)
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// A Dialer is a means to establish a connection.
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type Dialer interface {
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// Dial connects to the given address via the proxy.
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Dial(network, addr string) (c net.Conn, err error)
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}
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// Auth contains authentication parameters that specific Dialers may require.
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type Auth struct {
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User, Password string
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}
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// FromEnvironment returns the dialer specified by the proxy related variables in
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// the environment.
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func FromEnvironment() Dialer {
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allProxy := os.Getenv("all_proxy")
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if len(allProxy) == 0 {
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return Direct
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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
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}
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proxy, err := FromURL(proxyURL, Direct)
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if err != nil {
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return Direct
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}
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noProxy := os.Getenv("no_proxy")
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if len(noProxy) == 0 {
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return proxy
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}
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perHost := NewPerHost(proxy, Direct)
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perHost.AddFromString(noProxy)
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return perHost
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}
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// proxySchemes is a map from URL schemes to a function that creates a Dialer
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// from a URL with such a scheme.
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var proxySchemes map[string]func(*url.URL, Dialer) (Dialer, error)
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// RegisterDialerType takes a URL scheme and a function to generate Dialers from
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// a URL with that scheme and a forwarding Dialer. Registered schemes are used
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// by FromURL.
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func RegisterDialerType(scheme string, f func(*url.URL, Dialer) (Dialer, error)) {
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if proxySchemes == nil {
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proxySchemes = make(map[string]func(*url.URL, Dialer) (Dialer, error))
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}
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proxySchemes[scheme] = f
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}
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// FromURL returns a Dialer given a URL specification and an underlying
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// Dialer for it to make network requests.
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func FromURL(u *url.URL, forward Dialer) (Dialer, error) {
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var auth *Auth
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if u.User != nil {
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auth = new(Auth)
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auth.User = u.User.Username()
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if p, ok := u.User.Password(); ok {
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auth.Password = p
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}
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}
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switch u.Scheme {
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case "socks5":
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return SOCKS5("tcp", u.Host, auth, forward)
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}
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// If the scheme doesn't match any of the built-in schemes, see if it
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// was registered by another package.
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if proxySchemes != nil {
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if f, ok := proxySchemes[u.Scheme]; ok {
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return f(u, forward)
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}
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}
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return nil, errors.New("proxy: unknown scheme: " + u.Scheme)
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}
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