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package middleware // import "github.com/docker/docker/api/server/middleware"
import (
"context"
"net/http"
"net/http/httptest"
"runtime"
"testing"
"github.com/docker/docker/api/server/httputils"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
)
func TestVersionMiddlewareVersion(t *testing.T) {
defaultVersion := "1.10.0"
minVersion := "1.2.0"
expectedVersion := defaultVersion
handler := func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
v := httputils.VersionFromContext(ctx)
assert.Check(t, is.Equal(expectedVersion, v))
return nil
}
m := NewVersionMiddleware(defaultVersion, defaultVersion, minVersion)
h := m.WrapHandler(handler)
req, _ := http.NewRequest(http.MethodGet, "/containers/json", nil)
resp := httptest.NewRecorder()
ctx := context.Background()
tests := []struct {
reqVersion string
expectedVersion string
errString string
}{
{
expectedVersion: "1.10.0",
},
{
reqVersion: "1.9.0",
expectedVersion: "1.9.0",
},
{
reqVersion: "0.1",
errString: "client version 0.1 is too old. Minimum supported API version is 1.2.0, please upgrade your client to a newer version",
},
{
reqVersion: "9999.9999",
errString: "client version 9999.9999 is too new. Maximum supported API version is 1.10.0",
},
}
for _, test := range tests {
expectedVersion = test.expectedVersion
err := h(ctx, resp, req, map[string]string{"version": test.reqVersion})
if test.errString != "" {
assert.Check(t, is.Error(err, test.errString))
} else {
assert.Check(t, err)
}
}
}
func TestVersionMiddlewareWithErrorsReturnsHeaders(t *testing.T) {
handler := func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
v := httputils.VersionFromContext(ctx)
assert.Check(t, len(v) != 0)
return nil
}
defaultVersion := "1.10.0"
minVersion := "1.2.0"
m := NewVersionMiddleware(defaultVersion, defaultVersion, minVersion)
h := m.WrapHandler(handler)
req, _ := http.NewRequest(http.MethodGet, "/containers/json", nil)
resp := httptest.NewRecorder()
ctx := context.Background()
vars := map[string]string{"version": "0.1"}
err := h(ctx, resp, req, vars)
assert.Check(t, is.ErrorContains(err, ""))
hdr := resp.Result().Header
assert.Check(t, is.Contains(hdr.Get("Server"), "Docker/"+defaultVersion))
assert.Check(t, is.Contains(hdr.Get("Server"), runtime.GOOS))
assert.Check(t, is.Equal(hdr.Get("API-Version"), defaultVersion))
assert.Check(t, is.Equal(hdr.Get("OSType"), runtime.GOOS))
}
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