stuff n things

cmd/contrib/main.go

@@ -246,7 +246,8 @@ func rootCmd() *cobra.Command {
 
 	rc.Flags().StringVarP(&updateName, "update", "u", "", "Name of command to update")
 	rc.Flags().StringVarP(&delName, "delete", "d", "", "Name of command to delete")
-	rc.Flags().BoolVarP(&force, "force", "f", false, "skip request, just install the command")
+	// TODO hiding this until i decide i want it or not
+	//rc.Flags().BoolVarP(&force, "force", "f", false, "skip request, just install the command")
 
 	return rc
 }

cmd/signup/README.md

@@ -0,0 +1,61 @@
+The point of this project is to enable signing up for tilde.town via an ssh connection.
+
+It ought to work something like this:
+
+```bash
+
+ssh signup@tilde.town
+
+       <ascii art>
+
+       tilde.town
+
+
+a creature stands before you. what does it look like?
+
+  > a floating gray cube
+    a calico cat with softly glowing eyes
+    a squid
+    something else
+
+cube: you'd like to sign up for tilde.town, yes?
+
+ > yeah
+   nah
+   why should I?
+
+you say, "yeah"
+
+cube: by what name should i call you?
+
+  ~cowcow________
+
+cube: unfortunately, i already know someone by that name. what else can i call you?
+
+  ~shelf_________
+
+cube: excellent, hello ~shelf. have you been invited here by anyone i know?
+
+ > yes, i have an invite code
+   no
+
+you say "yes, i have an invite code"
+
+cube: great. please paste it and press enter:
+
+  _____________
+
+```
+
+...and so on. 
+
+TODO
+
+- [ ] make signup user
+- [ ] get dummy program to run as ssh handler
+- [ ] tcell bootstrapping some kind of interactivity
+- [ ] existing username check
+- [ ] email validation
+- [ ] collect responses
+- [ ] create the signup request (on disk? db?)
+- [ ] invite system support

cmd/signup/main.go

@@ -0,0 +1,366 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+	"unicode/utf8"
+
+	"github.com/rivo/tview"
+)
+
+/*
+Assumes:
+
+Match User join
+        ForceCommand /town/src/town/cmd/signup/signup
+        PubkeyAuthentication no
+        KbdInteractiveAuthentication no
+        PasswordAuthentication yes
+        PermitEmptyPasswords yes
+        DisableForwarding yes
+
+in sshd_config, and:
+
+auth [success=done default=ignore] pam_succeed_if.so user ingroup join
+
+in /etc/pam.d/sshd
+
+*/
+
+/*
+
+is there a way :qa
+
+
+*/
+
+type streams struct {
+	In  io.Reader
+	Out io.Writer
+	Err io.Writer
+}
+
+type Prompter struct {
+	in    io.Reader
+	out   io.Writer
+	width int
+}
+
+func (p *Prompter) Say(m string) {
+	for _, line := range wrap(m, p.width) {
+		fmt.Fprintln(p.out, line)
+	}
+}
+
+func (p *Prompter) CharSay(c, m string) {
+	sayPrefix := fmt.Sprintf("%s says: ", c)
+	prefixWidth := utf8.RuneCountInString(sayPrefix)
+	width := p.width - prefixWidth
+	indent := ""
+	for x := 0; x < utf8.RuneCountInString(sayPrefix); x++ {
+		indent += " "
+	}
+	for i, line := range wrap(m, width) {
+		if i == 0 {
+			fmt.Fprintln(p.out, sayPrefix+line)
+		} else {
+			fmt.Fprintln(p.out, indent+line)
+		}
+	}
+}
+
+type InputAnswer struct {
+	Value string
+}
+
+func runeLen(s string) int {
+	return utf8.RuneCountInString(s)
+}
+
+func wrap(s string, width int) []string {
+	fielded := strings.Fields(s)
+	out := []string{}
+	line := ""
+	for i, field := range fielded {
+		if runeLen(field)+runeLen(line)+1 < width {
+			line += field + " "
+		} else {
+			out = append(out, line)
+			line = field + " "
+			continue
+		}
+		if i == len(fielded)-1 {
+			out = append(out, line)
+		}
+	}
+	return out
+}
+
+func (p *Prompter) Confirm(m string) (bool, error) {
+	result := InputAnswer{}
+
+	for {
+		err := p.Ask(m, &result)
+		if err != nil {
+			return false, err
+		}
+
+		val := strings.TrimSpace(result.Value)
+
+		switch val {
+		case "yes", "y":
+			return true, nil
+		case "no", "n":
+			return false, nil
+		default:
+			p.Say("sorry, please say y or n")
+			p.Pause()
+		}
+	}
+}
+
+func (p *Prompter) Ask(m string, result *InputAnswer) error {
+	fmt.Fprintf(p.out, "%s ", m)
+	var val string
+	var err error
+
+	reader := bufio.NewReader(p.in)
+	for val == "" {
+		val, err = reader.ReadString('\n')
+		if err != nil {
+			return err
+		}
+		if val == "" {
+			p.Say("hmm, what was that?")
+			p.Pause()
+		}
+	}
+
+	result.Value = val
+
+	return nil
+}
+
+func (p *Prompter) AskLong(m string, result *InputAnswer) error {
+	fmt.Fprintf(p.out, "%s\n", m)
+	var val []byte
+	var err error
+
+	reader := bufio.NewReader(p.in)
+	for len(val) == 0 {
+		val, err = ioutil.ReadAll(reader)
+		if err != nil {
+			return err
+		}
+		if len(val) == 0 {
+			fmt.Fprintf(p.out, "%s\n", m)
+		}
+	}
+
+	result.Value = string(val)
+
+	return nil
+}
+
+func (p *Prompter) Pause() {
+	fmt.Fprintln(p.out)
+	time.Sleep(1 * time.Second)
+}
+
+func NewPrompter(width int, s *streams) Prompter {
+	return Prompter{
+		in:    s.In,
+		out:   s.Out,
+		width: width,
+	}
+}
+
+type answers struct {
+	username string
+	email    string
+	applied  time.Time
+
+	howDay   string
+	howHeard string
+	reasons  string
+	plans    string
+	socials  string
+	sshKey   string
+}
+
+func _main(args []string, s *streams) error {
+	a := answers{}
+
+	p := NewPrompter(80, s)
+
+	// disable input buffering
+	exec.Command("stty", "-F", "/dev/tty", "cbreak", "min", "1").Run()
+
+	// LOL i don't think this will work
+	reader := bufio.NewReader(p.in)
+	s, _ := reader.ReadString(4)
+	fmt.Printf("DBG %#v\n", s)
+	//var b []byte = make([]byte, 100)
+	//for {
+	//	os.Stdin.Read(b)
+	//	fmt.Println("I got the byte", b, "("+string(b)+")")
+	//}
+
+	var ia InputAnswer
+	if err := p.AskLong("lol give me stuff hit ctrl+d", &ia); err != nil {
+		return err
+	}
+	fmt.Printf("DBG %#v\n", ia.Value)
+
+	p.Say("you are standing in a field.")
+	p.Pause()
+	p.Say("there are flowers around you. you are standing in a slight depression and before you is grass touching a purple sky.")
+	p.Pause()
+	p.Say("you are not sure how long it's been when a cube about a meter high appears at the top of the hill before you.")
+	p.Say("the cube's surface is murky but iridescently reflective like an oil slick.")
+	p.Pause()
+	p.CharSay("cube", "hello. how is your day going?")
+	p.Say("(you can type a response and hit enter to talk to the cube)")
+	p.Pause()
+
+	howDay := InputAnswer{}
+	err := p.Ask("you say:", &howDay)
+	if err != nil {
+		return err
+	}
+	a.howDay = howDay.Value
+
+	p.Say("the cube inclines towards you gently as if nodding.")
+	p.CharSay("cube", "i see.")
+	p.Pause()
+
+	p.CharSay("cube", "i am guessing that if you are here, you want to be there.")
+	p.Pause()
+
+	p.Say("you blink and are somewhere else.")
+	p.Pause()
+
+	p.Say("the field of flowers is behind you and now you are up on the hill. the cube is next to you.")
+	p.Pause()
+	p.Say("you can see clear across a wide open plain. structures large and small dot the landscape. you catch a whiff of a savory smell and can just barely hear voices on the wind.")
+	p.Pause()
+
+	p.CharSay("cube", "the tilde town lies before us. if you want to continue, i'll ask you some questions about acquiring a home down in the town. you'll be free to edit your responses before i carry them off.")
+	p.Pause()
+
+	p.CharSay("cube", "first, i'm curious how you found out about the town?")
+	p.Pause()
+
+	answer := InputAnswer{}
+
+	if err := p.Ask("you say:", &answer); err != nil {
+		return err
+	}
+	a.howHeard = answer.Value
+
+	p.CharSay("cube", "interesting, thanks.")
+	p.CharSay("cube", "what sort of stuff do you want to get up to on the town?")
+
+	if err := p.Ask("you say:", &answer); err != nil {
+		return err
+	}
+	a.plans = answer.Value
+
+	p.CharSay("cube", "thanks.")
+	p.CharSay("cube", "what do you like about the town?")
+
+	if err := p.Ask("you say:", &answer); err != nil {
+		return err
+	}
+	a.reasons = answer.Value
+
+	p.CharSay("cube", "i appreciate it.")
+	p.CharSay("cube", "can you paste some links to other places you are active online? maybe a homepage or social media profile? if you aren't comfortable sharing or there are none, just say so.")
+
+	if err := p.Ask("you say:", &answer); err != nil {
+		return err
+	}
+	a.socials = answer.Value
+
+	p.CharSay("cube", "ok, last thing. in order to break ground in the town, you'll need an SSH key. If you don't know what that is, you can check out this link: https://tilde.town/ssh.html .")
+	p.Pause()
+
+	if err := p.AskLong("paste SSH public key; press control+d to submit:", &answer); err != nil {
+		return err
+	}
+	a.sshKey = answer.Value
+
+	p.CharSay("cube", "i know that was a lot so i appreciate it. i've got everything written down here. before i carry it off, do you want to review and edit what you wrote?")
+
+	confirmed, err := p.Confirm("type y or n: ")
+	if err != nil {
+		return err
+	}
+
+	if confirmed {
+		err := edit(s, &a)
+		if err != nil {
+			return err
+		}
+	}
+
+	fmt.Printf("DBG %#v\n", confirmed)
+
+	fmt.Printf("DBG %#v\n", a)
+
+	// TODO allow for editing
+	// TODO write answers to disk
+	// TODO add a log
+	// TODO pretty colors
+	// TODO ascii art
+	// TODO IP throttling?
+
+	return nil
+}
+
+func edit(s *streams, a *answers) error {
+	// TODO make more real
+	/*
+		username string
+		email    string
+		applied  time.Time
+
+		howDay   string
+		howHeard string
+		reasons  string
+		plans    string
+		socials  string
+		sshKey   string
+	*/
+	// TODO add note about tabbing around
+
+	app := tview.NewApplication()
+	form := tview.NewForm().
+		AddInputField("how did you hear about the town?", a.howHeard, 0, nil, nil).
+		AddButton("cool i'm good", nil).
+		AddButton("cancel and discard all this please", func() { app.Stop() })
+	form.SetBorder(true).SetTitle("edit your stuff").SetTitleAlign(tview.AlignCenter)
+
+	return app.SetRoot(form, true).EnableMouse(true).Run()
+}
+
+func main() {
+	retcode := 0
+	s := &streams{
+		In:  os.Stdin,
+		Out: os.Stdout,
+		Err: os.Stderr,
+	}
+	err := _main(os.Args, s)
+	if err != nil {
+		retcode = 1
+		fmt.Fprintln(os.Stderr, err)
+	}
+	os.Exit(retcode)
+}

cmd/signup/thoughts.md

@@ -0,0 +1,46 @@
+# New commands for signups
+
+## town-signup
+
+this binary is run by OpenSSH when a user anywhere in the world runs `ssh join@tilde.town`. It should:
+
+- collect information about an application from a user
+- allow them to edit their responses before submitting
+- write a yaml file of their responses to disk 
+
+## review-signups
+
+this binary is run by town admins in order to review, approve, notate, and reject applications. It should:
+
+- iterate over signups
+- allow fuzzy finding a particular signup
+- allow approval using create-user
+- allow rejection
+  - just move signup to archived rejected signup directory
+- allow notating an application, ie:
+  - lock the yaml file for writing
+  - add notes to the yaml file that can be seen by other admins
+- print info about historical signups
+
+## create-user
+
+this binary is called by `review-signups` to take a yaml application and create a user on disk. It should:
+
+- create the user idempotently
+  - `adduser`
+  - `usermod` to set group
+  - calling `add-key` for user
+- move the yaml file to an archive directory of approved signups
+
+## user-key
+
+this binary helps manage keys for users; basically automating the listing, adding, and removing of public keys for a user.
+
+- `user-key add <username> <keyfile`
+- `user-key list <username>`
+- `user-key remove <username>`
+
+
+
+
+

go.mod

@@ -5,6 +5,7 @@ go 1.18
 require (
 	github.com/AlecAivazis/survey/v2 v2.3.5
 	github.com/charmbracelet/glamour v0.5.0
+	github.com/rivo/tview v0.0.0-20230130130022-4a1b7a76c01c
 	github.com/spf13/cobra v1.5.0
 	gopkg.in/yaml.v3 v3.0.1
 )
@@ -13,6 +14,8 @@ require (
 	github.com/alecthomas/chroma v0.10.0 // indirect
 	github.com/aymerick/douceur v0.2.0 // indirect
 	github.com/dlclark/regexp2 v1.4.0 // indirect
+	github.com/gdamore/encoding v1.0.0 // indirect
+	github.com/gdamore/tcell/v2 v2.5.3 // indirect
 	github.com/gorilla/css v1.0.0 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
@@ -25,12 +28,12 @@ require (
 	github.com/muesli/reflow v0.3.0 // indirect
 	github.com/muesli/termenv v0.9.0 // indirect
 	github.com/olekukonko/tablewriter v0.0.5 // indirect
-	github.com/rivo/uniseg v0.2.0 // indirect
+	github.com/rivo/uniseg v0.4.2 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/yuin/goldmark v1.4.4 // indirect
 	github.com/yuin/goldmark-emoji v1.0.1 // indirect
 	golang.org/x/net v0.0.0-20210614182718-04defd469f4e // indirect
 	golang.org/x/sys v0.0.0-20220422013727-9388b58f7150 // indirect
 	golang.org/x/term v0.0.0-20210503060354-a79de5458b56 // indirect
-	golang.org/x/text v0.3.6 // indirect
+	golang.org/x/text v0.3.7 // indirect
 )

go.sum

@@ -16,6 +16,10 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dlclark/regexp2 v1.4.0 h1:F1rxgk7p4uKjwIQxBs9oAXe5CqrXlCduYEJvrF4u93E=
 github.com/dlclark/regexp2 v1.4.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
+github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
+github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
+github.com/gdamore/tcell/v2 v2.5.3 h1:b9XQrT6QGbgI7JvZOJXFNczOQeIYbo8BfeSMzt2sAV0=
+github.com/gdamore/tcell/v2 v2.5.3/go.mod h1:wSkrPaXoiIWZqW/g7Px4xc79di6FTcpB8tvaKJ6uGBo=
 github.com/gorilla/css v1.0.0 h1:BQqNyPTi50JCFMTw/b67hByjMVXZRwGha6wxVGkeihY=
 github.com/gorilla/css v1.0.0/go.mod h1:Dn721qIggHpt4+EFCcTLTU/vk5ySda2ReITrtgBl60c=
 github.com/hinshun/vt10x v0.0.0-20220119200601-820417d04eec h1:qv2VnGeEQHchGaZ/u7lxST/RaJw+cv273q79D81Xbog=
@@ -47,9 +51,12 @@ github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N
 github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rivo/tview v0.0.0-20230130130022-4a1b7a76c01c h1:zIYU4PjQJ4BnYryMmpyizt1Un13V0ToCMXvC05DK8xc=
+github.com/rivo/tview v0.0.0-20230130130022-4a1b7a76c01c/go.mod h1:lBUy/T5kyMudFzWUH/C2moN+NlU5qF505vzOyINXuUQ=
 github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
-github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.4.2 h1:YwD0ulJSJytLpiaWua0sBDusfsCZohxjxzVTYjwxfV8=
+github.com/rivo/uniseg v0.4.2/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/spf13/cobra v1.5.0 h1:X+jTBEBqF0bHN+9cSMgmfuvv2VHJ9ezmFNf9Y/XstYU=
 github.com/spf13/cobra v1.5.0/go.mod h1:dWXEIy2H428czQCjInthrTRUg7yKbok+2Qi/yBIJoUM=
@@ -70,14 +77,18 @@ golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20220318055525-2edf467146b5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220422013727-9388b58f7150 h1:xHms4gcpe1YE7A3yIllJXP16CMAGuqwO2lX1mTyyRRc=
 golang.org/x/sys v0.0.0-20220422013727-9388b58f7150/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20201210144234-2321bbc49cbf/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210503060354-a79de5458b56 h1:b8jxX3zqjpqb2LklXPzKSGJhzyxCOZSz8ncv8Nv+y7w=
 golang.org/x/term v0.0.0-20210503060354-a79de5458b56/go.mod h1:tfny5GFUkzUvx4ps4ajbZsCe5lw1metzhBm9T3x7oIY=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
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