forked from gravitational/teleport
/
access_request.go
459 lines (402 loc) · 11.5 KB
/
access_request.go
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/*
Copyright 2021 Gravitational, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package main
import (
"fmt"
"os"
"sort"
"strings"
"time"
"github.com/ghodss/yaml"
"github.com/gravitational/trace"
"github.com/zmb3/teleport"
"github.com/zmb3/teleport/api/client"
"github.com/zmb3/teleport/api/client/proto"
"github.com/zmb3/teleport/api/types"
"github.com/zmb3/teleport/lib/asciitable"
"github.com/zmb3/teleport/lib/auth"
"github.com/zmb3/teleport/lib/services"
"github.com/zmb3/teleport/lib/utils"
)
var requestLoginHint = "use 'tsh login --request-id=<request-id>' to login with an approved request"
func onRequestList(cf *CLIConf) error {
tc, err := makeClient(cf, false)
if err != nil {
return trace.Wrap(err)
}
if cf.Username == "" {
cf.Username = tc.Username
}
var reqs []types.AccessRequest
err = tc.WithRootClusterClient(cf.Context, func(clt auth.ClientI) error {
reqs, err = clt.GetAccessRequests(cf.Context, types.AccessRequestFilter{})
return trace.Wrap(err)
})
if err != nil {
return trace.Wrap(err)
}
if cf.ReviewableRequests {
filtered := reqs[:0]
Reviewable:
for _, req := range reqs {
if req.GetUser() == cf.Username {
continue Reviewable
}
for _, rev := range req.GetReviews() {
if rev.Author == cf.Username {
continue Reviewable
}
}
filtered = append(filtered, req)
}
reqs = filtered
}
if cf.SuggestedRequests {
filtered := reqs[:0]
Suggested:
for _, req := range reqs {
if req.GetUser() == cf.Username {
continue Suggested
}
for _, rev := range req.GetReviews() {
if rev.Author == cf.Username {
continue Suggested
}
}
for _, reviewer := range req.GetSuggestedReviewers() {
if reviewer == cf.Username {
filtered = append(filtered, req)
continue Suggested
}
}
}
reqs = filtered
}
if cf.MyRequests {
filtered := reqs[:0]
for _, req := range reqs {
if req.GetUser() == cf.Username {
filtered = append(filtered, req)
}
}
reqs = filtered
}
format := strings.ToLower(cf.Format)
switch format {
case teleport.Text, "":
if err := showRequestTable(reqs); err != nil {
return trace.Wrap(err)
}
case teleport.JSON, teleport.YAML:
out, err := serializeAccessRequests(reqs, format)
if err != nil {
return trace.Wrap(err)
}
fmt.Println(out)
default:
return trace.BadParameter("unsupported format %q", cf.Format)
}
return nil
}
func serializeAccessRequests(reqs []types.AccessRequest, format string) (string, error) {
var out []byte
var err error
if format == teleport.JSON {
out, err = utils.FastMarshalIndent(reqs, "", " ")
} else {
out, err = yaml.Marshal(reqs)
}
return string(out), trace.Wrap(err)
}
func onRequestShow(cf *CLIConf) error {
tc, err := makeClient(cf, false)
if err != nil {
return trace.Wrap(err)
}
if cf.Username == "" {
cf.Username = tc.Username
}
var req types.AccessRequest
err = tc.WithRootClusterClient(cf.Context, func(clt auth.ClientI) error {
req, err = services.GetAccessRequest(cf.Context, clt, cf.RequestID)
return trace.Wrap(err)
})
if err != nil {
return trace.Wrap(err)
}
format := strings.ToLower(cf.Format)
switch format {
case teleport.Text, "":
err = printRequest(req)
if err != nil {
return trace.Wrap(err)
}
case teleport.JSON, teleport.YAML:
out, err := serializeAccessRequest(req, format)
if err != nil {
return trace.Wrap(err)
}
fmt.Println(out)
default:
return trace.BadParameter("unsupported format %q", cf.Format)
}
return nil
}
func serializeAccessRequest(req types.AccessRequest, format string) (string, error) {
var out []byte
var err error
if format == teleport.JSON {
out, err = utils.FastMarshalIndent(req, "", " ")
} else {
out, err = yaml.Marshal(req)
}
return string(out), trace.Wrap(err)
}
func printRequest(req types.AccessRequest) error {
reason := "[none]"
if r := req.GetRequestReason(); r != "" {
reason = fmt.Sprintf("%q", r)
}
reviewers := "[none]"
if r := req.GetSuggestedReviewers(); len(r) > 0 {
reviewers = strings.Join(r, ", ")
}
resourcesStr := ""
if resources := req.GetRequestedResourceIDs(); len(resources) > 0 {
var err error
if resourcesStr, err = types.ResourceIDsToString(resources); err != nil {
return trace.Wrap(err)
}
}
table := asciitable.MakeHeadlessTable(2)
table.AddRow([]string{"Request ID:", req.GetName()})
table.AddRow([]string{"Username:", req.GetUser()})
table.AddRow([]string{"Roles:", strings.Join(req.GetRoles(), ", ")})
if len(resourcesStr) > 0 {
table.AddRow([]string{"Resources:", resourcesStr})
}
table.AddRow([]string{"Reason:", reason})
table.AddRow([]string{"Reviewers:", reviewers + " (suggested)"})
table.AddRow([]string{"Status:", req.GetState().String()})
_, err := table.AsBuffer().WriteTo(os.Stdout)
if err != nil {
return trace.Wrap(err)
}
var approvals, denials []types.AccessReview
for _, rev := range req.GetReviews() {
switch {
case rev.ProposedState.IsApproved():
approvals = append(approvals, rev)
case rev.ProposedState.IsDenied():
denials = append(denials, rev)
}
}
printReviewBlock := func(title string, revs []types.AccessReview) error {
fmt.Println("------------------------------------------------")
fmt.Printf("%s:\n", title)
for _, rev := range revs {
fmt.Println(" ----------------------------------------------")
revReason := "[none]"
if rev.Reason != "" {
revReason = fmt.Sprintf("%q", rev.Reason)
}
subTable := asciitable.MakeHeadlessTable(2)
subTable.AddRow([]string{" Reviewer:", rev.Author})
subTable.AddRow([]string{" Reason:", revReason})
_, err = subTable.AsBuffer().WriteTo(os.Stdout)
if err != nil {
return trace.Wrap(err)
}
}
return nil
}
if len(approvals) > 0 {
if err := printReviewBlock("Approvals", approvals); err != nil {
return trace.Wrap(err)
}
}
if len(denials) > 0 {
if err := printReviewBlock("Denials", denials); err != nil {
return trace.Wrap(err)
}
}
fmt.Fprintf(os.Stdout, "\nhint: %v\n", requestLoginHint)
return nil
}
func onRequestCreate(cf *CLIConf) error {
tc, err := makeClient(cf, true)
if err != nil {
return trace.Wrap(err)
}
if err := executeAccessRequest(cf, tc); err != nil {
return trace.Wrap(err)
}
onStatus(cf)
return nil
}
func onRequestReview(cf *CLIConf) error {
tc, err := makeClient(cf, false)
if err != nil {
return trace.Wrap(err)
}
if cf.Username == "" {
cf.Username = tc.Username
}
if cf.Approve == cf.Deny {
return trace.BadParameter("must supply exactly one of '--approve' or '--deny'")
}
var state types.RequestState
switch {
case cf.Approve:
state = types.RequestState_APPROVED
case cf.Deny:
state = types.RequestState_DENIED
}
var req types.AccessRequest
err = tc.WithRootClusterClient(cf.Context, func(clt auth.ClientI) error {
req, err = clt.SubmitAccessReview(cf.Context, types.AccessReviewSubmission{
RequestID: cf.RequestID,
Review: types.AccessReview{
Author: cf.Username,
ProposedState: state,
Reason: cf.ReviewReason,
},
})
return trace.Wrap(err)
})
if err != nil {
return trace.Wrap(err)
}
if s := req.GetState(); s.IsPending() || s == state {
fmt.Fprintf(os.Stderr, "Successfully submitted review. Request state: %s\n", req.GetState())
} else {
fmt.Fprintf(os.Stderr, "Warning: ineffectual review. Request state: %s\n", req.GetState())
}
return nil
}
func showRequestTable(reqs []types.AccessRequest) error {
sort.Slice(reqs, func(i, j int) bool {
return reqs[i].GetCreationTime().After(reqs[j].GetCreationTime())
})
table := asciitable.MakeTable([]string{"ID", "User", "Roles"})
table.AddColumn(asciitable.Column{
Title: "Resources",
MaxCellLength: 20,
FootnoteLabel: "[+]",
})
table.AddFootnote("[+]",
"Requested resources truncated, use `tsh request show <request-id>` to view the full list")
table.AddColumn(asciitable.Column{Title: "Created At (UTC)"})
table.AddColumn(asciitable.Column{Title: "Status"})
now := time.Now()
for _, req := range reqs {
if now.After(req.GetAccessExpiry()) {
continue
}
resourceIDsString, err := types.ResourceIDsToString(req.GetRequestedResourceIDs())
if err != nil {
return trace.Wrap(err)
}
table.AddRow([]string{
req.GetName(),
req.GetUser(),
strings.Join(req.GetRoles(), ","),
resourceIDsString,
req.GetCreationTime().UTC().Format(time.RFC822),
req.GetState().String(),
})
}
_, err := table.AsBuffer().WriteTo(os.Stdout)
fmt.Fprintf(os.Stdout, "\nhint: use 'tsh request show <request-id>' for additional details\n")
fmt.Fprintf(os.Stdout, " %v\n", requestLoginHint)
return trace.Wrap(err)
}
func onRequestSearch(cf *CLIConf) error {
tc, err := makeClient(cf, false /* useProfileLogin */)
if err != nil {
return trace.Wrap(err)
}
proxyClient, err := tc.ConnectToProxy(cf.Context)
if err != nil {
return trace.Wrap(err)
}
defer proxyClient.Close()
authClient := proxyClient.CurrentCluster()
req := proto.ListResourcesRequest{
ResourceType: services.MapResourceKindToListResourcesType(cf.ResourceKind),
Labels: tc.Labels,
PredicateExpression: cf.PredicateExpression,
SearchKeywords: tc.SearchKeywords,
UseSearchAsRoles: true,
}
results, err := client.GetResourcesWithFilters(cf.Context, authClient, req)
if err != nil {
return trace.Wrap(err)
}
var resources types.ResourcesWithLabels
for _, result := range results {
leafResources, err := services.MapListResourcesResultToLeafResource(result, cf.ResourceKind)
if err != nil {
return trace.Wrap(err)
}
resources = append(resources, leafResources...)
}
var rows [][]string
var resourceIDs []string
for _, resource := range resources {
resourceID := types.ResourceIDToString(types.ResourceID{
ClusterName: proxyClient.ClusterName(),
Kind: resource.GetKind(),
Name: resource.GetName(),
})
resourceIDs = append(resourceIDs, resourceID)
hostName := ""
if r, ok := resource.(interface{ GetHostname() string }); ok {
hostName = r.GetHostname()
}
rows = append(rows, []string{
resource.GetName(),
hostName,
sortedLabels(resource.GetAllLabels()),
resourceID,
})
}
table := asciitable.MakeTableWithTruncatedColumn([]string{"Name", "Hostname", "Labels", "Resource ID"}, rows, "Labels")
if _, err := table.AsBuffer().WriteTo(os.Stdout); err != nil {
return trace.Wrap(err)
}
if len(resourceIDs) > 0 {
resourcesStr := strings.Join(resourceIDs, " --resource ")
fmt.Fprintf(os.Stdout, `
To request access to these resources, run
> tsh request create --resource %s \
--reason <request reason>
`, resourcesStr)
}
return nil
}
func onRequestDrop(cf *CLIConf) error {
tc, err := makeClient(cf, false /* useProfileLogin */)
if err != nil {
return trace.Wrap(err)
}
if len(cf.RequestIDs) == 1 && cf.RequestIDs[0] == "*" {
fmt.Fprintf(os.Stdout, "Dropping all active access requests...\n\n")
} else {
fmt.Fprintf(os.Stdout, "Dropping access request(s): %s...\n\n", strings.Join(cf.RequestIDs, ", "))
}
if err := reissueWithRequests(cf, tc, nil /*newRequests*/, cf.RequestIDs); err != nil {
return trace.Wrap(err)
}
return trace.Wrap(onStatus(cf))
}