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Copyright (C) 2022 Marius Schellenberger
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.

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GNU GENERAL PUBLIC LICENSE
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parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

56
Makefile Normal file
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CC=go
BUILD=build -v -trimpath
VERSION=$(shell cat VERSION)
GCFLAGS=-gcflags '-e'
LDFLAGS=-ldflags '-buildid=$(VERSION) -X main.version=$(VERSION) -s -w'
PROGRAM=keyctl
CMD=-o $(PROGRAM) cmd/$(PROGRAM)/main.go
ENV=CGO_ENABLED=0 GO111MODULE=on
all: $(PROGRAM)
setup:
$(CC) install github.com/client9/misspell/cmd/misspell@latest
$(CC) install honnef.co/go/tools/cmd/staticcheck@latest
release: clean gofmt codeqa
$(ENV) $(CC) $(BUILD) $(GCFLAGS) $(LDFLAGS) $(CMD)
release-vendor: clean gofmt codeqa
$(ENV) $(CC) $(BUILD) -mod=vendor $(GCFLAGS) $(LDFLAGS) $(CMD)
vendor: clean gofmt
$(ENV) $(CC) $(BUILD) -mod=vendor $(GCFLAGS) $(LDFLAGS) $(CMD)
$(PROGRAM): clean gofmt
$(ENV) $(CC) $(BUILD) $(GCFLAGS) $(LDFLAGS) $(CMD)
clean:
$(CC) clean -x
gofmt:
$(CC) fmt ./...
codeqa: govet misspell staticcheck test
govet:
$(CC) vet ./...
misspell:
$(GOPATH)/bin/misspell cmd/* pkg/* Makefile README.md sri.sh
staticcheck:
$(GOPATH)/bin/staticcheck ./...
test:
ifeq ($(shell go env GOARCH), $(shell go env GOHOSTARCH))
ifeq ($(shell go env GOOS), $(shell go env GOHOSTOS))
$(CC) test ./...
else
$(info skipping tests of other platforms)
endif
else
$(info skipping tests of other platforms)
endif
.PHONY: setup release release-vendor vendor build clean codeqa gofmt govet misspell staticcheck test

1
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# GoAcc - a simple OAuth2 login and consent provider

1
VERSION Normal file
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v1.0

83
cmd/keyctl/main.go Normal file
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// Copyright (C) 2023 Marius Schellenberger
package main
import (
"context"
"flag"
"fmt"
"os"
"os/signal"
"syscall"
"time"
"git.giftfish.de/ston1th/keyctl/pkg/server"
"github.com/go-logr/logr"
"k8s.io/klog/v2"
"k8s.io/klog/v2/klogr"
)
var (
version string
listen string
path string
log logr.Logger
)
func usage() {
fmt.Printf(`keyctl %s:
supported subcommands:
keyctl server - starts a keyctl server
keyctl new - generates a new key
keyctl get - retrieve a key from the server
keyctl ls - list configured keys
keyctl req - list current key requests
keyctl approve - approve a key request
keyctl del - delete a key
keyctl help - show this usage
`, version)
os.Exit(1)
}
func main() {
if len(os.Args) == 0 {
usage()
}
switch os.Args[0] {
case "new", "get", "ls", "req", "approve", "del":
//flag.StringVar(&config, "config", "/etc/keyctl/url.conf", "path to client config file")
//flag.Parse()
//cli.
case "server":
klog.InitFlags(nil)
flag.StringVar(&listen, "listen", ":7070", "listen ip:port")
flag.StringVar(&path, "path", "/var/keyctl/data.db", "data storage db")
flag.Parse()
default:
usage()
}
log = klogr.New().WithName("main")
log.Info("starting keyctl", "version", version)
srv, err := server.NewServer(klogr.New().WithName("srv"), listen, path)
if err != nil {
klog.Fatalf("init failed: %s", err)
}
err = srv.Start(klogr.New().WithName("db"))
if err != nil {
klog.Fatalf("init failed: %s", err)
}
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
<-sigs
log.Info("keyctl shutdown initiated")
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
srv.Shutdown(ctx)
cancel()
log.Info("keyctl shutdown completed")
os.Exit(0)
}

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module git.giftfish.de/ston1th/keyctl
go 1.20
require (
git.giftfish.de/ston1th/godrop/v2 v2.1.0
git.giftfish.de/ston1th/jwt/v3 v3.2.0
github.com/go-logr/logr v1.2.3
github.com/gorilla/mux v1.8.0
github.com/ory/hydra-client-go v1.11.8
github.com/pquerna/otp v1.3.0
go.etcd.io/bbolt v1.3.6
golang.org/x/crypto v0.0.0-20220817201139-bc19a97f63c8
k8s.io/klog/v2 v2.70.1
)
require (
github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc // indirect
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/golang/protobuf v1.5.2 // indirect
golang.org/x/net v0.0.0-20220812174116-3211cb980234 // indirect
golang.org/x/oauth2 v0.0.0-20220808172628-8227340efae7 // indirect
golang.org/x/sys v0.0.0-20220818161305-2296e01440c6 // indirect
google.golang.org/appengine v1.6.7 // indirect
google.golang.org/protobuf v1.28.1 // indirect
)

213
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// Copyright (C) 2023 Marius Schellenberger
package client
import (
"bytes"
"context"
"crypto/tls"
"errors"
"fmt"
"io"
"net"
"net/http"
"net/http/httputil"
"os"
"strconv"
"strings"
"time"
)
type Client struct {
endpoint string
username string
password string
auth bool
httpClient *http.Client
debugWriter io.Writer
insecure bool
}
var (
ErrNotFound = errors.New("not found")
)
type ClientOption func(*Client)
func WithEndpoint(endpoint string) ClientOption {
return func(client *Client) {
client.endpoint = strings.TrimRight(endpoint, "/")
}
}
func WithDebugWriter(debugWriter io.Writer) ClientOption {
return func(client *Client) {
client.debugWriter = debugWriter
}
}
func WithHTTPClient(httpClient *http.Client) ClientOption {
return func(client *Client) {
client.httpClient = httpClient
}
}
func WithInsecureClient(insecure bool) ClientOption {
return func(client *Client) {
client.insecure = insecure
}
}
func WithCredentials(username, password string) ClientOption {
return func(client *Client) {
client.username = username
client.password = password
client.auth = true
}
}
var (
ErrMissingEndpointEnv = errors.New("missing environment variable HAPROXY_LB_ENDPOINT")
ErrMissingUserEnv = errors.New("missing environment variable HAPROXY_LB_USER")
ErrMissingPasswordEnv = errors.New("missing environment variable HAPROXY_LB_PASSWORD")
ErrMissingEndpoint = errors.New("missing Endpoint in config")
ErrMissingUser = errors.New("missing User in config")
ErrMissingPassword = errors.New("missing Password in config")
)
type Config struct {
Endpoint string `json:"endpoint"`
NoAuth bool `json:"no_auth"`
User string `json:"user"`
Password string `json:"password"`
Insecure bool `json:"insecure"`
}
func ClientOptionsFromConfig(cfg Config) (options []ClientOption, err error) {
if cfg.Endpoint == "" {
err = ErrMissingEndpoint
return
}
options = []ClientOption{
WithEndpoint(cfg.Endpoint),
WithInsecureClient(cfg.Insecure),
}
if cfg.NoAuth {
return
}
if cfg.User == "" {
err = ErrMissingUser
return
}
if cfg.Password == "" {
err = ErrMissingPassword
return
}
options = append(options, WithCredentials(cfg.User, cfg.Password))
return
}
func ClientOptionsFromEnv() (options []ClientOption, err error) {
endpoint := os.Getenv("HAPROXY_LB_ENDPOINT")
if endpoint == "" {
err = ErrMissingEndpointEnv
return
}
insecure, _ := strconv.ParseBool(os.Getenv("HAPROXY_LB_INSECURE"))
options = []ClientOption{
WithEndpoint(endpoint),
WithInsecureClient(insecure),
}
noAuth, _ := strconv.ParseBool(os.Getenv("HAPROXY_LB_NO_AUTH"))
if noAuth {
return
}
user := os.Getenv("HAPROXY_LB_USER")
if user == "" {
err = ErrMissingUserEnv
return
}
pass := os.Getenv("HAPROXY_LB_PASSWORD")
if pass == "" {
err = ErrMissingPasswordEnv
return
}
options = append(options, WithCredentials(user, pass))
return
}
func NewClient(options ...ClientOption) *Client {
client := &Client{}
for _, option := range options {
option(client)
}
if client.httpClient == nil {
client.httpClient = &http.Client{Transport: &http.Transport{
DialContext: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).DialContext,
ForceAttemptHTTP2: true,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
TLSClientConfig: &tls.Config{
InsecureSkipVerify: client.insecure,
},
}}
}
return client
}
func (c *Client) NewRequest(ctx context.Context, method, path string, body io.Reader) (*http.Request, error) {
url := c.endpoint + path
req, err := http.NewRequest(method, url, body)
if err != nil {
return nil, err
}
if c.auth {
req.SetBasicAuth(c.username, c.password)
}
req = req.WithContext(ctx)
return req, nil
}
func (c *Client) Do(r *http.Request, v interface{}) (resp *http.Response, err error) {
if c.debugWriter != nil {
dumpReq, err := httputil.DumpRequestOut(r, true)
if err != nil {
return &http.Response{}, err
}
fmt.Fprintf(c.debugWriter, "--- Request:\n%s\n\n", dumpReq)
}
resp, err = c.httpClient.Do(r)
if err != nil {
return
}
body, err := io.ReadAll(resp.Body)
if err != nil {
resp.Body.Close()
return
}
resp.Body.Close()
resp.Body = io.NopCloser(bytes.NewReader(body))
if c.debugWriter != nil {
dumpResp, err := httputil.DumpResponse(resp, true)
if err != nil {
return resp, err
}
fmt.Fprintf(c.debugWriter, "--- Response:\n%s\n\n", dumpResp)
}
err = decodeResp(resp, v)
return
}

43
pkg/api/client/helper.go Normal file
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// Copyright (C) 2023 Marius Schellenberger
package client
import (
"encoding/json"
"net/http"
)
type Error struct {
Err string `json:"error"`
Status int `json:"status"`
}
func (e Error) Error() string {
return e.Err
}
func (e Error) Is(target error) bool {
return e.Err == target.Error()
}
func decodeResp(resp *http.Response, v interface{}) error {
if resp.Body == nil {
return nil
}
defer resp.Body.Close()
if resp.StatusCode == 200 {
if v == nil {
return nil
}
return json.NewDecoder(resp.Body).Decode(&v)
}
var e Error
err := json.NewDecoder(resp.Body).Decode(&e)
if err != nil {
return err
}
if resp.StatusCode >= 400 && resp.StatusCode <= 599 {
return e
}
return nil
}

101
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// Copyright (C) 2023 Marius Schellenberger
package api
import (
"context"
"net"
"net/http"
"time"
"git.giftfish.de/ston1th/keyctl/pkg/api/types"
serverv1 "git.giftfish.de/ston1th/keyctl/pkg/api/v1/server"
"git.giftfish.de/ston1th/keyctl/pkg/db"
"github.com/go-logr/logr"
"github.com/gorilla/mux"
)
// Server is the webapp and api server
type Server struct {
srv *http.Server
mux *mux.Router
log logr.Logger
Data *types.ContextData
init chan struct{}
stop chan struct{}
stopKeyReset chan struct{}
listen net.Listener
db *db.DB
}
type notFoundHandler struct {
s *Server
}
func (nf *notFoundHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
types.NewContext(w, r, nf.s.Data, nf.s.log).Err(types.ErrInvalidAPIRoute)
}
// NewHTTPServer returns a new HTTPServer
func NewServer(log logr.Logger, listen string) (*Server, error) {
s := &Server{
mux: mux.NewRouter(),
log: log,
Data: &types.ContextData{},
init: make(chan struct{}),
stop: make(chan struct{}),
stopKeyReset: make(chan struct{}),
}
l, err := net.Listen("tcp", listen)
if err != nil {
return nil, err
}
s.listen = l
s.mux.NotFoundHandler = &notFoundHandler{s}
for _, v := range serverv1.Routes {
s.mux.HandleFunc(v.Path, s.contextWrapper(v.Handler)).Methods(v.Methods...)
}
s.start()
return s, nil
}
func (s *Server) start() {
s.srv = &http.Server{
Handler: s.mux,
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
}
go func() {
<-s.init
err := s.srv.Serve(s.listen)
if err != nil {
s.log.Error(err, "")
}
}()
return
}
func (s *Server) contextWrapper(h types.CtxHandler) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
h(types.NewContext(w, r, s.Data, s.log))
}
}
// Stop stops listening for incoming connections and closes currently open connections
func (s *Server) Stop() {
s.log.Info("stopping")
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
defer cancel()
err := s.srv.Shutdown(ctx)
if err != nil {
s.log.Error(err, "")
}
s.log.Info("stopped")
}

103
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// Copyright (C) 2023 Marius Schellenberger
package types
import (
"sync"
"time"
"git.giftfish.de/ston1th/keyctl/pkg/key"
"golang.org/x/exp/maps"
)
const maxSize = 10
type ApprovalMap map[string]Approval
type Approver struct {
// protects m
mu sync.RWMutex
m ApprovalMap
}
func NewApprover() *Approver {
return &Approver{
m: make(ApprovalMap),
}
}
func (a *Approver) New(id, name string) (aid string, err error) {
a.mu.Lock()
defer a.mu.Unlock()
size := len(a.m)
if size > maxSize {
err = ErrTooManyApprovals
return
}
aid, err = key.GenerateID()
if err != nil {
return
}
a.m[aid] = Approval{
ID: id,
Name: name,
Created: time.Now().Unix(),
}
return
}
func (a *Approver) List() (m ApprovalMap) {
a.mu.RLock()
m = maps.Clone(a.m)
a.mu.RUnlock()
return
}
func (a *Approver) Status(id, aid string) (s Status) {
a.mu.RLock()
if app, ok := a.m[aid]; ok && app.ID == id {
s = app.Status
}
a.mu.RUnlock()
return
}
func (a *Approver) Update(aid string, s Status) {
a.mu.Lock()
if _, ok := a.m[aid]; ok {
a.m[aid].Status = s
}
a.mu.Unlock()
}
type Approval struct {
ID string
Name string
Created int64
Status Status
}
type Status int
const (
Pending Status = iota
Approved
Rejected
)
func (s Status) String() string {
switch s {
case Pending:
return "pending"
case Approved:
return "approved"
case Rejected:
return "rejected"
}
return "[invalid]"
}
type Route struct {
Path string
Handler CtxHandler
Methods []string
}

138
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// Copyright (C) 2023 Marius Schellenberger
package types
import (
"encoding/json"
"io"
"net"
"net/http"
"github.com/go-logr/logr"
"github.com/gorilla/mux"
"git.giftfish.de/ston1th/keyctl/pkg/db"
)
type ContextData struct {
DB *db.DB
}
func NewContext(w http.ResponseWriter, r *http.Request, data *ContextData, log logr.Logger) *Context {
h := w.Header()
h.Set("Content-Type", "application/json")
return &Context{
Code: http.StatusOK,
Request: r,
Response: w,
Data: data,
Log: log,
}
}
// Context is the context object shared between http handlers
type Context struct {
Code int
Request *http.Request
Response http.ResponseWriter
Data *ContextData
Log logr.Logger
}
// Method returns the request method
func (c *Context) Method() string {
return c.Request.Method
}
// Path returns the request URL path
func (c *Context) Path() string {
return c.Request.URL.Path
}
// Header returns the given http header
func (c *Context) Header(name string) string {
return c.Request.Header.Get(name)
}
// SetHeader sets the given http header
func (c *Context) SetHeader(name, value string) {
h := c.Response.Header()
h.Set(name, value)
}
// Form returns the given form value
func (c *Context) Form(name string) string {
return c.Request.FormValue(name)
}
func (c *Context) ClientIP() (host string) {
host, _, _ = net.SplitHostPort(c.Request.RemoteAddr)
return
}
// Var returns the given url variable
func (c *Context) Var(name string) (ret string) {
ret, _ = mux.Vars(c.Request)[name]
return
}
func (c *Context) log() {
c.Log.Info("access",
"addr", c.Request.RemoteAddr,
"method", c.Request.Method,
"path", c.Request.URL.Path,
"code", c.Code,
)
}
func (c *Context) NotFound() {
c.Err(ErrNotFound)
}
// OK is a empty HTTP 200 JSON response
func (c *Context) OK() {
c.log()
}
func (c *Context) ReadBody() (b []byte, err error) {
b, err = io.ReadAll(c.Request.Body)
c.Request.Body.Close()
return
}
func (c *Context) Body(b []byte) {
c.Response.Write(b)
c.log()
}
// JSON is a json response
func (c *Context) JSON(v any) {
err := json.NewEncoder(c.Response).Encode(v)
if err != nil {
c.Err(ErrISE)
return
}
c.log()
}
func (c *Context) Redirect(url string, code int) {
c.Code = code
http.Redirect(c.Response, c.Request, url, code)
c.log()
}
// Err is a HTTPErr wrapper for the custom Error type
func (c *Context) Err(err Error) {
c.HTTPErr(err.JSON(), err.Code())
}
// HTTPErr is a http.Error wrapper
func (c *Context) HTTPErr(err string, code int) {
c.Code = code
http.Error(c.Response, err, code)
c.log()
}
type CtxHandler func(*Context)

55
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// Copyright (C) 2023 Marius Schellenberger
package types
import (
"net/http"
"strconv"
)
// Error interface is a custom api error
type Error interface {
Error() string
JSON() string
Status() int
}
// Err implements the Error interface
type Err struct {
err string
status int
}
// Error returns the error string
func (a Err) Error() string {
return a.err
}
// Error returns the error string as JSON format
func (a Err) JSON() string {
return `{"error":"` + a.err + `","status":` + strconv.Itoa(a.status) + `}`
}
// Status returns the HTTP status code
func (a Err) Status() int {
return a.status
}
func newError(err string, status int) Error {
return Err{
err: err,
status: status,
}
}
var (
ErrInvalidAPIRoute = newError("invalid api route", http.StatusNotFound)
ErrBadreq = newError("bad request", http.StatusBadRequest)
ErrForbidden = newError("forbidden", http.StatusForbidden)
ErrNotFound = newError("not found", http.StatusNotFound)
ErrKeyNotFound = newError("key not found", http.StatusNotFound)
ErrReqNotFound = newError("key request not found", http.StatusNotFound)
ErrTooManyApprovals = newError("too many approvals pending", http.StatusConflict)
ErrMNA = newError("method not allowed", http.StatusMethodNotAllowed)
ErrISE = newError("internal server error", http.StatusInternalServerError)
)

9
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// Copyright (C) 2023 Marius Schellenberger
package types
type Route struct {
Path string
Handler CtxHandler
Methods []string
}

100
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// Copyright (C) 2023 Marius Schellenberger
package client
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
apiclient "git.giftfish.de/ston1th/keyctl/pkg/api/client"
"git.giftfish.de/ston1th/keyctl/pkg/api/v1/schema"
)
var (
ErrClientIsNil = errors.New("client is nil")
base = schema.LBPath
)
type Client struct {
c *apiclient.Client
}
func NewClient(c *apiclient.Client) (*Client, error) {
if c == nil {
return nil, ErrClientIsNil
}
return &Client{c}, nil
}
func (c *Client) GetLoadBalancers(ctx context.Context) (lbs map[string]*schema.LoadBalancer, err error) {
return c.GetLoadBalancersWithCluster(ctx, "")
}
func (c *Client) GetLoadBalancersWithCluster(ctx context.Context, cluster string) (lbs map[string]*schema.LoadBalancer, err error) {
path := base
if cluster != "" {
path += "/" + cluster
}
req, err := c.c.NewRequest(ctx, "GET", path, nil)
if err != nil {
return
}
lbs = make(map[string]*schema.LoadBalancer)
_, err = c.c.Do(req, &lbs)
return
}
func (c *Client) GetLoadBalancer(ctx context.Context, cluster, name string) (lb *schema.LoadBalancer, err error) {
path := fmt.Sprintf("%s/%s/%s", base, cluster, name)
req, err := c.c.NewRequest(ctx, "GET", path, nil)
if err != nil {
return
}
_, err = c.c.Do(req, &lb)
return
}
func (c *Client) CreateLoadBalancer(ctx context.Context, cluster, name string, lb *schema.LoadBalancer) (err error) {
buf := new(bytes.Buffer)
path := fmt.Sprintf("%s/%s/%s", base, cluster, name)
err = lb.ValidateClient()
if err != nil {
return
}
err = json.NewEncoder(buf).Encode(lb)
if err != nil {
return
}
req, err := c.c.NewRequest(ctx, "POST", path, buf)
if err != nil {
return
}
_, err = c.c.Do(req, nil)
return
}
func (c *Client) DeleteLoadBalancer(ctx context.Context, cluster, name string) (err error) {
path := fmt.Sprintf("%s/%s/%s", base, cluster, name)
req, err := c.c.NewRequest(ctx, "DELETE", path, nil)
if err != nil {
return
}
_, err = c.c.Do(req, nil)
return
}
func (c *Client) DeleteLoadBalancersWithCluster(ctx context.Context, cluster string) (err error) {
if cluster == "" {
return errors.New("cluster value can not be empty")
}
path := base + "/" + cluster
req, err := c.c.NewRequest(ctx, "DELETE", path, nil)
if err != nil {
return
}
_, err = c.c.Do(req, nil)
return
}

95
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// Copyright (C) 2023 Marius Schellenberger
package schema
import (
"errors"
"git.giftfish.de/ston1th/keyctl/pkg/api/types"
"git.giftfish.de/ston1th/keyctl/pkg/core"
"golang.org/x/exp/slices"
)
const (
Version = "v1"
KeyName = "key"
ReqName = "req"
KeyPath = "/" + Version + "/" + KeyName
ReqPath = "/" + Version + "/" + ReqName
)
type NewKey struct {
Name string `json:"name"`
Size int `json:"size"`
Encoding core.Encoding `json:"encoding"`
}
var (
ErrInvalidKeyName = errors.New("invalid key name")
ErrInvalidKeySize = errors.New("invalid key size")
)
const (
MinKeySize = 1
MaxKeySize = 1024
)
func (nk NewKey) Validate() error {
if core.NameRe.MatchString(nk.Name) {
return ErrInvalidKeyName
}
if nk.Size > MaxKeySize || nk.Size < MinKeySize {
return ErrInvalidKeySize
}
return nil
}
func ApproveURL(id, aid string) string {
return KeyPath + "/" + id + "/" + aid
}
type Key struct {
ID string `json:"id"`
Name string `json:"name"`
Created int64 `json:"created"`
Size int `json:"size"`
Encoding core.Encoding `json:"encoding"`
Key string `json:"key"`
}
type Keys []Key
func (Keys) Less(a, b Key) { return a.Name < b.Name }
func (k Keys) Sort() { slices.SortStableFunc(k, k.Less) }
func NewKeys(keys core.Keys) (k Keys) {
k = Keys(keys)
k.Sort()
}
type Approval struct {
ID string `json:"id"`
AID string `json:"aid"`
Name string `json:"name"`
Created int64 `json:"created"`
Status types.Status `json:"status"`
}
type Approvals []Approval
func (Approvals) Less(a, b Approval) { return a.Name < b.Name }
func (a Approvals) Sort() { slices.SortStableFunc(a, a.Less) }
func NewApprovals(m types.ApprovalMap) (a Approvals) {
for k, v := range m {
a = append(a, Approval{
ID: v.ID,
AID: k,
Name: v.Name,
Created: v.Created,
Status: v.Status,
})
}
a.Sort()
return
}

136
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// Copyright (C) 2023 Marius Schellenberger
package server
import (
"encoding/json"
"net/http"
"net/netip"
"git.giftfish.de/ston1th/keyctl/pkg/api/types"
"git.giftfish.de/ston1th/keyctl/pkg/api/v1/schema"
)
func local(h types.CtxHandler) types.CtxHandler {
return func(ctx *types.Context) {
addr, err := netip.ParseAddr(ctx.ClientIP())
if err != nil {
ctx.Err(types.ErrForbidden)
return
}
if !addr.IsLoopback() {
ctx.Err(types.ErrForbidden)
return
}
h(ctx)
}
}
func healthzHandler(ctx *types.Context) {
ctx.OK()
}
func newHandler(ctx *types.Context) {
if ctx.Method() == "POST" {
b, err := ctx.ReadBody()
if err != nil {
ctx.Log.Error(err, "error reading request body")
ctx.Err(types.ErrISE)
return
}
var newKey schema.NewKey
err = json.Unmarshal(b, &newKey)
if err != nil {
ctx.Log.Error(err, "error decoding request body")
ctx.Err(types.ErrInvalid)
return
}
err = newKey.Validate()
if err != nil {
ctx.Log.Error(err, "error empty name for new key")
ctx.Err(types.ErrInvalid)
return
}
key, err := ctx.Data.DB.CreateKey(newKey.Name, newKey.Size, newKey.Encoding)
if err != nil {
ctx.Log.Error(err, "error writing loadbalancer", "cluster", cl, "name", n)
ctx.Err(types.ErrISE)
return
}
ctx.JSON(schema.Key(key))
}
}
func keyHandler(ctx *types.Context) {
id := ctx.Var("id")
k, err := ctx.Data.DB.GetKey(id)
if err != nil {
//TODO error 404
ctx.Log.Error(err, "error reading key", "id", id)
ctx.Err(types.ErrISE)
return
}
switch ctx.Method() {
case "GET":
aid := ctx.Var("aid")
if aid == "" {
aid, err = ctx.Data.Approvals.New(id, k.Name)
if err != nil {
ctx.Log.Error(err, "error creating approval", "id", id, "name", k.Name)
ctx.Err(types.ErrISE)
return
}
ctx.Redirect(schema.ApproveURL(id, aid), http.StatusFound)
return
}
if !ctx.Data.Approvals.Approved(id, aid) {
ctx.Redirect(schema.ApproveURL(id, aid), http.StatusFound)
return
}
k, err := ctx.Data.DB.GetKeyWithSecret(id)
if err != nil {
//TODO error 404
ctx.Log.Error(err, "error reading key", "id", id)
ctx.Err(types.ErrISE)
return
}
ctx.JSON(schema.Key(k))
case "DELETE":
err = ctx.Data.DB.DeleteKey(id)
if err != nil {
ctx.Log.Error(err, "error deleting key", "id", id, "name", k.Name)
ctx.Err(types.ErrISE)
return
}
ctx.OK()
}
}
func reqListHandler(ctx *types.Context) {
l := ctx.Data.Approvals.List()
ctx.JSON(schema.NewApprovals(l))
}
func keyListHandler(ctx *types.Context) {
k, err := ctx.Data.DB.GetKeys()
if err != nil {
//TODO error 404
ctx.Log.Error(err, "error reading keys")
ctx.Err(types.ErrISE)
return
}
ctx.JSON(schema.NewKeys(k))
}
func reqHandler(ctx *types.Context) {
id := ctx.Var("id")
status := types.Pending
switch ctx.Method() {
case "PUT":
status = types.Approved
case "DELETE":
status = types.Rejected
}
ctx.Data.Approvals.Update(id, status)
ctx.OK()
}

59
pkg/api/v1/server/routes.go Normal file
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// Copyright (C) 2023 Marius Schellenberger
package server
import (
"git.giftfish.de/ston1th/keyctl/pkg/api/types"
"git.giftfish.de/ston1th/keyctl/pkg/api/v1/schema"
"git.giftfish.de/ston1th/keyctl/pkg/core"
)
const (
healthz = "/healthz"
keyID = schema.KeyPath + core.IDRoute
keyReqID = schema.KeyPath + core.IDRoute + core.AIDRoute
reqID = schema.ReqPath + core.IDRoute
)
var Routes = []types.Route{
{
healthz,
healthzHandler,
[]string{"GET"},
},
{
schema.KeyPath,
local(keyListHandler),
[]string{"GET"},
},
{
schema.KeyPath,
local(newHandler),
[]string{"POST"},
},
{
keyID,
keyHandler,
[]string{"GET"},
},
{
keyReqID,
keyHandler,
[]string{"GET"},
},
{
keyID,
local(keyHandler),
[]string{"DELETE"},
},
{
schema.ReqPath,
local(reqListHandler),
[]string{"GET"},
},
{
reqID,
local(reqHandler),
[]string{"PUT", "DELETE"},
},
}

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// Copyright (C) 2023 Marius Schellenberger
package cli

56
pkg/core/encoding.go Normal file
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// Copyright (C) 2023 Marius Schellenberger
package core
import (
"encoding/base32"
"encoding/base64"
"encoding/hex"
)
var b32raw = base32.StdEncoding.WithPadding(base32.NoPadding)
type Encoding int
func (e Encoding) String() string {
switch e {
case Base32:
return "base32"
case Base64:
return "base64"
case Base64URL:
return "base64url"
}
return "hex"
}
func (e Encoding) EncodeToString(src []byte) string {
switch e {
case Base32:
return b32raw.EncodeToString(src)
case Base64:
return base64.RawStdEncoding.EncodeToString(src)
case Base64URL:
return base64.RawURLEncoding.EncodeToString(src)
}
return hex.EncodeToString(src)
}
func EncodingFromString(e string) Encoding {
switch e {
case "base32":
return Base32
case "base64":
return Base64
case "base64url":
return Base64URL
}
return Hex
}
const (
Hex Encoding = iota
Base32
Base64
Base64URL
)

26
pkg/core/key.go Normal file
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// Copyright (C) 2023 Marius Schellenberger
package core
import "regexp"
const (
re = "a-zA-Z0-9_-"
id = "[a-f0-9]{32}"
nameReReverse = "[^" + re + "]+"
IDRoute = "/{id:" + id + "}"
AIDRoute = "/{aid:" + id + "}"
)
var NameRe = regexp.MustCompile(nameReReverse)
type Key struct {
ID string
Name string
Created int64
Size int
Encoding Encoding
Key string
}
type Keys []Key

53
pkg/db/db.go Normal file
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// Copyright (C) 2023 Marius Schellenberger
package db
import (
"io"
"path/filepath"
"git.giftfish.de/ston1th/godrop/v2"
"git.giftfish.de/ston1th/keyctl/pkg/core"
"git.giftfish.de/ston1th/keyctl/pkg/store"
"github.com/go-logr/logr"
)
const storeFile = "store.db"
type DB struct {
log logr.Logger
store store.Store
}
func NewPlain(log logr.Logger, cfg *core.Config) (db *DB, err error) {
db = &DB{log: log}
dbFile := filepath.Join(cfg.DataDir, storeFile)
err = godrop.Unveil(dbFile, "rwc")
if err != nil {
return
}
db.store, err = store.NewBoltStore(dbFile, nil)
return
}
func New(log logr.Logger, cfg *core.Config) (db *DB, err error) {
db, err = NewPlain(log, cfg)
if err != nil {
return
}
err = db.RunMigrations()
return
}
func (db *DB) Dump(w io.Writer) error {
return db.store.Dump(w)
}
func (db *DB) Restore(r io.Reader) error {
return db.store.Restore(r)
}
func (db *DB) Close() error {
return db.store.Close()
}

48
pkg/db/key.go Normal file
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// Copyright (C) 2023 Marius Schellenberger
package db
import (
"sort"
"git.giftfish.de/ston1th/goacc/pkg/core"
"git.giftfish.de/ston1th/keyctl/pkg/key"
)
const keyPrefix = "key/"
func (db *DB) GetKeys() (keys core.Keys, err error) {
err = db.store.ForEachPrefix(keyPrefix, func(k string, _ []byte) error {
k, err := db.GetKey(k)
if err == nil {
keys = append(keys, k)
}
return nil
})
sort.Sort(keys)
return
}
func (db *DB) GetKey(id string) (k core.Key, err error) {
k, err = db.GetKeyWithSecret(id)
k.Key = ""
return
}
func (db *DB) GetKeyWithSecret(id string) (k core.Key, err error) {
err = db.store.Get(keyPrefix+id, &k)
return
}
func (db *DB) CreateKey(name string, size int, enc core.Encoding) (k core.Key, err error) {
k, err = key.Generate(name, size, enc)
if err != nil {
return
}
err = db.store.Set(keyPrefix+k.ID, &k)
return
}
func (db *DB) DeleteKey(id string) error {
return db.store.Delete(keyPrefix + id)
}

60
pkg/db/migration.go Normal file
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// Copyright (C) 2022 Marius Schellenberger
package db
import (
"errors"
"git.giftfish.de/ston1th/keyctl/pkg/store"
)
const (
versionKey = "version/version"
currentVersion = 0
)
type migrator func(*DB, int) error
var migrators = []migrator{
func(_ *DB, _ int) error {
return nil
},
}
func (db *DB) RunMigrations() (err error) {
log := db.log.WithName("migration")
var version int
err = db.store.Get(versionKey, &version)
if err == store.ErrKeyNotFound {
err = db.store.Set(versionKey, currentVersion)
if err != nil {
return
}
err = db.store.Get(versionKey, &version)
if err != nil {
return
}
}
log.Info("db versions", "current", version, "new", currentVersion)
if currentVersion < version {
return errors.New("incompatible versions")
}
if currentVersion == version {
log.Info("nothing to do")
}
for version < currentVersion {
v := version + 1
log.Info("running", "version", v)
err = migrators[v](db, v)
if err != nil {
return
}
err = db.store.Set(versionKey, v)
if err != nil {
return
}
version = v
log.Info("finished", "version", v)
}
return
}

48
pkg/key/key.go Normal file
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// Copyright (C) 2023 Marius Schellenberger
package key
import (
"crypto/rand"
"encoding/hex"
"io"
"time"
"git.giftfish.de/ston1th/keyctl/pkg/core"
)
const idSize = 16
func generate(size int) (buf []byte, err error) {
buf = make([]byte, size)
_, err = io.ReadFull(rand.Reader, buf)
return
}
func GenerateID() (string, error) {
id, err := generate(idSize)
if err != nil {
return "", err
}
return hex.EncodeToString(id), nil
}
func Generate(name string, size int, enc core.Encoding) (k core.Key, err error) {
id, err := GenerateID()
if err != nil {
return
}
key, err := generate(size)
if err != nil {
return
}
k = core.Key{
Name: name,
ID: id,
Size: size,
Encoding: enc.String(),
Key: enc.Encode(key),
Created: time.Now().Unix(),
}
return
}

140
pkg/store/boltstore.go Normal file
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// Copyright (C) 2022 Marius Schellenberger
package store
import (
"encoding/json"
"io"
bolt "go.etcd.io/bbolt"
)
const (
defaultBoltBucket = "default"
fileMode = 0o600
)
type BoltStore struct {
Marshaler
db *bolt.DB
}
func NewBoltStore(file string, m Marshaler) (Store, error) {
if m == nil {
m = NewGOB()
}
db, err := bolt.Open(file, fileMode, nil)
if err != nil {
return nil, err
}
if err := db.Update(func(tx *bolt.Tx) (err error) {
_, err = tx.CreateBucketIfNotExists([]byte(defaultBoltBucket))
return
}); err != nil {
return nil, err
}
return &BoltStore{m, db}, nil
}
type dump struct {
K string `json:"k"`
V []byte `json:"v"`
}
func (bs *BoltStore) Dump(w io.Writer) (err error) {
if w == nil {
return ErrWriterIsNil
}
var d []dump
err = bs.ForEach(func(k string, v []byte) error {
b := make([]byte, len(v))
copy(b, v)
d = append(d, dump{k, b})
return nil
})
if err != nil {
return
}
return json.NewEncoder(w).Encode(d)
}
func (bs *BoltStore) Restore(r io.Reader) (err error) {
if r == nil {
return ErrReaderIsNil
}
var d []dump
err = json.NewDecoder(r).Decode(&d)
if err != nil {
return
}
if err = bs.db.Update(func(tx *bolt.Tx) (err error) {
if err = tx.DeleteBucket([]byte(defaultBoltBucket)); err != nil {
return
}
_, err = tx.CreateBucket([]byte(defaultBoltBucket))
return
}); err != nil {
return
}
return bs.db.Update(func(tx *bolt.Tx) (err error) {
b := tx.Bucket([]byte(defaultBoltBucket))
for _, v := range d {
b.Put([]byte(v.K), v.V)
}
return nil
})
}
func (bs *BoltStore) Get(key string, v interface{}) (err error) {
err = bs.db.View(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte(defaultBoltBucket)).Get([]byte(key))
if b == nil {
return ErrKeyNotFound
}
if v != nil {
return bs.Unmarshal(b, v)
}
return nil
})
return
}
func (bs *BoltStore) Set(key string, v interface{}) error {
return bs.db.Update(func(tx *bolt.Tx) (err error) {
var b []byte
if v != nil {
b, err = bs.Marshal(v)
if err != nil {
return
}
}
return tx.Bucket([]byte(defaultBoltBucket)).Put([]byte(key), b)
})
}
func (bs *BoltStore) ForEach(f func(string, []byte) error) error {
return bs.db.View(func(tx *bolt.Tx) error {
return tx.Bucket([]byte(defaultBoltBucket)).ForEach(func(k, v []byte) error {
return f(string(k), v)
})
})
}
func (bs *BoltStore) ForEachPrefix(prefix string, f func(string, []byte) error) error {
return bs.ForEach(func(k string, v []byte) error {
if trim, ok := hasTrimPrefix(k, prefix); ok {
return f(trim, v)
}
return nil
})
}
func (bs *BoltStore) Delete(key string) error {
return bs.db.Update(func(tx *bolt.Tx) error {
return tx.Bucket([]byte(defaultBoltBucket)).Delete([]byte(key))
})
}
func (bs *BoltStore) Close() error {
return bs.db.Close()
}

98
pkg/store/boltstore_test.go Normal file
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// Copyright (C) 2022 Marius Schellenberger
package store
import (
"bytes"
"errors"
"os"
"path/filepath"
"testing"
)
type testData struct {
Data string
}
func TestBoltStore(t *testing.T) {
data := []testData{
{"123"},
{"hello"},
}
dir, err := os.MkdirTemp("", "")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
bs, err := NewBoltStore(filepath.Join(dir, "bolt.db"), nil)
if err != nil {
t.Fatal(err)
}
err = bs.Set("key0", data[0])
if err != nil {
t.Fatal(err)
}
err = bs.Set("key1", data[1])
if err != nil {
t.Fatal(err)
}
t.Run("GetKey0", func(t *testing.T) {
var d testData
err := bs.Get("key0", &d)
if err != nil {
t.Fatal(err)
}
if d != data[0] {
t.Error("d is not data[0]")
}
})
t.Run("ForEach", func(t *testing.T) {
err := bs.ForEach(func(k string, v []byte) error {
if k == "key0" || k == "key1" {
return nil
}
return errors.New("key0 or key1 not found")
})
if err != nil {
t.Fatal(err)
}
})
t.Run("DumpRestore", func(t *testing.T) {
buf := new(bytes.Buffer)
err := bs.Dump(buf)
if err != nil {
t.Fatal(err)
}
if buf.Len() == 0 {
t.Error("no dump written")
}
err = bs.Restore(buf)
if err != nil {
t.Fatal(err)
}
})
t.Run("DeleteKey1", func(t *testing.T) {
err := bs.Delete("key1")
if err != nil {
t.Fatal(err)
}
})
t.Run("GetKey1", func(t *testing.T) {
var d testData
err := bs.Get("key1", &d)
if err == nil {
t.Error("key1 should be deleted")
}
if d == data[1] {
t.Error("d is not data[1]")
}
})
t.Run("Close", func(t *testing.T) {
err := bs.Close()
if err != nil {
t.Fatal(err)
}
})
}

13
pkg/store/dump.go Normal file
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// Copyright (C) 2022 Marius Schellenberger
package store
import "io"
type Dumper interface {
Dump(io.Writer) error
}
type Restorer interface {
Restore(io.Reader) error
}

25
pkg/store/gob.go Normal file
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// Copyright (C) 2022 Marius Schellenberger
package store
import (
"bytes"
"encoding/gob"
)
type gobMarshaler struct{}
func NewGOB() Marshaler {
return gobMarshaler{}
}
func (gobMarshaler) Marshal(v interface{}) (b []byte, err error) {
buf := new(bytes.Buffer)
err = gob.NewEncoder(buf).Encode(v)
b = buf.Bytes()
return
}
func (gobMarshaler) Unmarshal(data []byte, v interface{}) error {
return gob.NewDecoder(bytes.NewBuffer(data)).Decode(v)
}

11
pkg/store/helper.go Normal file
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// Copyright (C) 2022 Marius Schellenberger
package store
// Parts taken from strings.TrimPrefix
func hasTrimPrefix(s, prefix string) (string, bool) {
if len(s) >= len(prefix) && s[0:len(prefix)] == prefix {
return s[len(prefix):], true
}
return s, false
}

8
pkg/store/marshal.go Normal file
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// Copyright (C) 2022 Marius Schellenberger
package store
type Marshaler interface {
Marshal(v interface{}) ([]byte, error)
Unmarshal(data []byte, v interface{}) error
}

23
pkg/store/store.go Normal file
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// Copyright (C) 2022 Marius Schellenberger
package store
import "errors"
var (
ErrKeyNotFound = errors.New("store: key not found")
ErrWriterIsNil = errors.New("store: writer is nil")
ErrReaderIsNil = errors.New("store: reader is nil")
)
type Store interface {
Marshaler
Dumper
Restorer
Get(string, interface{}) error
Set(string, interface{}) error
ForEach(func(string, []byte) error) error
ForEachPrefix(string, func(string, []byte) error) error
Delete(string) error
Close() error
}

48
scripts/install_openbsd.sh Executable file
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#!/bin/sh
cat <<'EOF'> /etc/rc.d/goacc
#!/bin/ksh
daemon="/usr/local/sbin/goacc"
daemon_user="_goacc"
. /etc/rc.d/rc.subr
pexp=".*${daemon}.*"
rc_bg=YES
rc_reload=NO
rc_start() {
${rcexec} "${daemon} ${daemon_flags} < /dev/null 2>&1 | \
logger -ip daemon.info -t goacc"
}
rc_cmd $1
EOF
chmod 555 /etc/rc.d/goacc
rcctl enable goacc
rcctl set goacc flags -config /var/acc/goacc.conf
mkdir /var/acc
groupadd _goacc
useradd -d /var/acc -s /sbin/nologin -g _goacc _goacc
chown _goacc:_goacc /var/acc
cat <<EOF> /var/acc/goacc.conf
{
"data_dir": "/var/acc",
"listen": "127.0.0.1:4443",
"secret": "$(openssl rand -hex 32)",
"hydra_admin_url": "http://127.0.0.1:4445",
"admin_disabled": false,
"secure_cookie": true
}
EOF
chmod 640 /var/acc/goacc.conf
chgrp _goacc /var/acc/goacc.conf
cat <<EOF
copy your goacc binary to /usr/local/sbin/goacc
then run: rcctl start goacc
EOF