github.com/lazyboychen7/engine@v17.12.1-ce-rc2+incompatible/integration-cli/docker_cli_registry_user_agent_test.go (about)

     1  package main
     2  
     3  import (
     4  	"fmt"
     5  	"io/ioutil"
     6  	"net/http"
     7  	"os"
     8  	"regexp"
     9  
    10  	"github.com/docker/docker/integration-cli/registry"
    11  	"github.com/go-check/check"
    12  )
    13  
    14  // unescapeBackslashSemicolonParens unescapes \;()
    15  func unescapeBackslashSemicolonParens(s string) string {
    16  	re := regexp.MustCompile(`\\;`)
    17  	ret := re.ReplaceAll([]byte(s), []byte(";"))
    18  
    19  	re = regexp.MustCompile(`\\\(`)
    20  	ret = re.ReplaceAll([]byte(ret), []byte("("))
    21  
    22  	re = regexp.MustCompile(`\\\)`)
    23  	ret = re.ReplaceAll([]byte(ret), []byte(")"))
    24  
    25  	re = regexp.MustCompile(`\\\\`)
    26  	ret = re.ReplaceAll([]byte(ret), []byte(`\`))
    27  
    28  	return string(ret)
    29  }
    30  
    31  func regexpCheckUA(c *check.C, ua string) {
    32  	re := regexp.MustCompile("(?P<dockerUA>.+) UpstreamClient(?P<upstreamUA>.+)")
    33  	substrArr := re.FindStringSubmatch(ua)
    34  
    35  	c.Assert(substrArr, check.HasLen, 3, check.Commentf("Expected 'UpstreamClient()' with upstream client UA"))
    36  	dockerUA := substrArr[1]
    37  	upstreamUAEscaped := substrArr[2]
    38  
    39  	// check dockerUA looks correct
    40  	reDockerUA := regexp.MustCompile("^docker/[0-9A-Za-z+]")
    41  	bMatchDockerUA := reDockerUA.MatchString(dockerUA)
    42  	c.Assert(bMatchDockerUA, check.Equals, true, check.Commentf("Docker Engine User-Agent malformed"))
    43  
    44  	// check upstreamUA looks correct
    45  	// Expecting something like:  Docker-Client/1.11.0-dev (linux)
    46  	upstreamUA := unescapeBackslashSemicolonParens(upstreamUAEscaped)
    47  	reUpstreamUA := regexp.MustCompile("^\\(Docker-Client/[0-9A-Za-z+]")
    48  	bMatchUpstreamUA := reUpstreamUA.MatchString(upstreamUA)
    49  	c.Assert(bMatchUpstreamUA, check.Equals, true, check.Commentf("(Upstream) Docker Client User-Agent malformed"))
    50  }
    51  
    52  // registerUserAgentHandler registers a handler for the `/v2/*` endpoint.
    53  // Note that a 404 is returned to prevent the client to proceed.
    54  // We are only checking if the client sent a valid User Agent string along
    55  // with the request.
    56  func registerUserAgentHandler(reg *registry.Mock, result *string) {
    57  	reg.RegisterHandler("/v2/", func(w http.ResponseWriter, r *http.Request) {
    58  		w.WriteHeader(404)
    59  		w.Write([]byte(`{"errors":[{"code": "UNSUPPORTED","message": "this is a mock registry"}]}`))
    60  		var ua string
    61  		for k, v := range r.Header {
    62  			if k == "User-Agent" {
    63  				ua = v[0]
    64  			}
    65  		}
    66  		*result = ua
    67  	})
    68  }
    69  
    70  // TestUserAgentPassThrough verifies that when an image is pulled from
    71  // a registry, the registry should see a User-Agent string of the form
    72  // [docker engine UA] UpstreamClientSTREAM-CLIENT([client UA])
    73  func (s *DockerRegistrySuite) TestUserAgentPassThrough(c *check.C) {
    74  	var ua string
    75  
    76  	reg, err := registry.NewMock(c)
    77  	defer reg.Close()
    78  	c.Assert(err, check.IsNil)
    79  	registerUserAgentHandler(reg, &ua)
    80  	repoName := fmt.Sprintf("%s/busybox", reg.URL())
    81  
    82  	s.d.StartWithBusybox(c, "--insecure-registry", reg.URL())
    83  
    84  	tmp, err := ioutil.TempDir("", "integration-cli-")
    85  	c.Assert(err, check.IsNil)
    86  	defer os.RemoveAll(tmp)
    87  
    88  	dockerfile, err := makefile(tmp, fmt.Sprintf("FROM %s", repoName))
    89  	c.Assert(err, check.IsNil, check.Commentf("Unable to create test dockerfile"))
    90  
    91  	s.d.Cmd("build", "--file", dockerfile, tmp)
    92  	regexpCheckUA(c, ua)
    93  
    94  	s.d.Cmd("login", "-u", "richard", "-p", "testtest", reg.URL())
    95  	regexpCheckUA(c, ua)
    96  
    97  	s.d.Cmd("pull", repoName)
    98  	regexpCheckUA(c, ua)
    99  
   100  	s.d.Cmd("tag", "busybox", repoName)
   101  	s.d.Cmd("push", repoName)
   102  	regexpCheckUA(c, ua)
   103  }