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cmd_list_trackers.go
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cmd_list_trackers.go
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// Copyright 2015 Keybase, Inc. All rights reserved. Use of
// this source code is governed by the included BSD license.
package client
import (
"encoding/json"
"fmt"
"strings"
"text/tabwriter"
"golang.org/x/net/context"
"github.com/keybase/cli"
"github.com/keybase/client/go/libcmdline"
"github.com/keybase/client/go/libkb"
keybase1 "github.com/keybase/client/go/protocol"
)
// CmdListTrackers is the 'list-trackers' command. It displays
// all the trackers for a user.
type CmdListTrackers struct {
uid keybase1.UID
username string
verbose bool
json bool
headers bool
}
// NewCmdListTrackers creates a new cli.Command.
func NewCmdListTrackers(cl *libcmdline.CommandLine) cli.Command {
return cli.Command{
Name: "list-trackers",
ArgumentHelp: "<username>",
Usage: "List trackers",
Flags: []cli.Flag{
cli.BoolFlag{
Name: "i, uid",
Usage: "Load user by UID.",
},
cli.BoolFlag{
Name: "v, verbose",
Usage: "A full dump, with more gory details.",
},
cli.BoolFlag{
Name: "j, json",
Usage: "Output as JSON (default is text).",
},
cli.BoolFlag{
Name: "H, headers",
Usage: "Show column headers.",
},
},
Action: func(c *cli.Context) {
cl.ChooseCommand(&CmdListTrackers{}, "list-trackers", c)
},
}
}
type batchfn func([]keybase1.UID) ([]keybase1.UserSummary, error)
func populateList(trs []keybase1.Tracker, summarizer batchfn) (ret []keybase1.UserSummary, err error) {
for i := 0; i < len(trs); i += libkb.UserSummaryLimit {
max := i + libkb.UserSummaryLimit
if max > len(trs) {
max = len(trs)
}
sub := trs[i:max]
uids := make([]keybase1.UID, len(sub))
for i, v := range sub {
uids[i] = v.Tracker
}
var tmp []keybase1.UserSummary
if tmp, err = summarizer(uids); err != nil {
return
}
ret = append(ret, tmp...)
}
return
}
// RunClient runs the command in client/server mode.
func (c *CmdListTrackers) Run() error {
cli, err := GetUserClient()
if err != nil {
return err
}
if err := RegisterProtocols(nil); err != nil {
return err
}
var trs []keybase1.Tracker
if c.uid.Exists() {
trs, err = cli.ListTrackers(context.TODO(), keybase1.ListTrackersArg{Uid: c.uid})
} else if len(c.username) > 0 {
trs, err = cli.ListTrackersByName(context.TODO(), keybase1.ListTrackersByNameArg{Username: c.username})
} else {
trs, err = cli.ListTrackersSelf(context.TODO(), 0)
}
if err != nil {
return err
}
summarize := func(uids []keybase1.UID) (res []keybase1.UserSummary, err error) {
return cli.LoadUncheckedUserSummaries(context.TODO(), keybase1.LoadUncheckedUserSummariesArg{Uids: uids})
}
return c.output(trs, summarize)
}
func (c *CmdListTrackers) headout(count int) *tabwriter.Writer {
if !c.verbose {
return nil
}
noun := "tracker"
if count > 1 {
noun = "trackers"
}
GlobUI.Printf("%d %s:\n\n", count, noun)
w := GlobUI.DefaultTabWriter()
if c.headers {
fmt.Fprintf(w, "Username\tFull name\tProofs\n")
fmt.Fprintf(w, "==========\t==========\t==========\n")
}
return w
}
func (c *CmdListTrackers) output(trs []keybase1.Tracker, summarizer batchfn) (err error) {
var sums []keybase1.UserSummary
if sums, err = populateList(trs, summarizer); err != nil {
return err
}
if len(sums) == 0 {
GlobUI.Printf("no trackers\n")
return nil
}
if c.json {
return c.outputJSON(sums)
}
if c.verbose {
w := c.headout(len(sums))
if w == nil {
return nil
}
for _, v := range sums {
p := c.proofSummary(v.Proofs)
fmt.Fprintf(w, "%s\t%s\t%s\n", v.Username, v.FullName, p)
}
w.Flush()
} else {
for _, v := range sums {
GlobUI.Println(v.Username)
}
}
return nil
}
func (c *CmdListTrackers) outputJSON(sums []keybase1.UserSummary) error {
type smallProofs struct {
Social []keybase1.TrackProof `json:"social,omitempty"`
Web []keybase1.WebProof `json:"web,omitempty"`
PublicKeys []keybase1.PublicKey `json:"public_keys,omitempty"`
}
type smallSum struct {
UID keybase1.UID `json:"uid"`
Username string `json:"username"`
FullName string `json:"full_name,omitempty"`
Proofs smallProofs `json:"proofs,omitempty"`
}
small := make([]smallSum, len(sums))
for i, s := range sums {
small[i] = smallSum{
UID: s.Uid,
Username: s.Username,
FullName: s.FullName,
Proofs: smallProofs{
Social: s.Proofs.Social,
Web: s.Proofs.Web,
PublicKeys: s.Proofs.PublicKeys,
},
}
}
j, err := json.MarshalIndent(small, "", "\t")
if err != nil {
return err
}
GlobUI.Println(string(j))
return nil
}
func (c *CmdListTrackers) proofSummary(p keybase1.Proofs) string {
var ps []string
for _, sp := range p.Social {
ps = append(ps, sp.IdString)
}
for _, wp := range p.Web {
ps = append(ps, wp.Hostname)
}
return strings.Join(ps, ", ")
}
// ParseArgv parses the command args.
func (c *CmdListTrackers) ParseArgv(ctx *cli.Context) error {
byUID := ctx.Bool("uid")
if len(ctx.Args()) == 1 {
if byUID {
var err error
c.uid, err = libkb.UIDFromHex(ctx.Args()[0])
if err != nil {
return fmt.Errorf("UID must be a 32-character hex string")
}
} else {
c.username = ctx.Args()[0]
}
}
c.verbose = ctx.Bool("verbose")
c.json = ctx.Bool("json")
c.headers = ctx.Bool("headers")
return nil
}
// GetUsage says what this command needs to operate.
func (c *CmdListTrackers) GetUsage() libkb.Usage {
return libkb.Usage{
Config: true,
API: true,
}
}