use client for user create action

Reviewed-on: #6

.woodpecker.yml

@@ -2,8 +2,8 @@ pipeline:
   test:
     image: golang:latest
     commands:
-      - go build ./cmd/client/client.go
-      - go build ./cmd/server/server.go
+      - go build -o gpaste-client ./cmd/client/client.go
+      - go build -o gpaste-server ./cmd/server/server.go
       - go test -v ./...
       - go vet ./...
     when:

api/http.go

@@ -0,0 +1,219 @@
+package api
+
+import (
+	"encoding/json"
+	"io"
+	"net/http"
+	"strings"
+
+	"git.t-juice.club/torjus/gpaste"
+	"git.t-juice.club/torjus/gpaste/files"
+	"git.t-juice.club/torjus/gpaste/users"
+	"github.com/go-chi/chi/v5"
+	"github.com/go-chi/chi/v5/middleware"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+type HTTPServer struct {
+	Files        files.FileStore
+	Users        users.UserStore
+	Auth         *gpaste.AuthService
+	config       *gpaste.ServerConfig
+	Logger       *zap.SugaredLogger
+	AccessLogger *zap.SugaredLogger
+	http.Server
+}
+
+func NewHTTPServer(cfg *gpaste.ServerConfig) *HTTPServer {
+	srv := &HTTPServer{
+		config:       cfg,
+		Logger:       zap.NewNop().Sugar(),
+		AccessLogger: zap.NewNop().Sugar(),
+	}
+	srv.Files = files.NewMemoryFileStore()
+	srv.Users = users.NewMemoryUserStore()
+	srv.Auth = gpaste.NewAuthService(srv.Users, []byte(srv.config.SigningSecret))
+
+	// Create initial user
+	// TODO: Do properly
+	user := &users.User{Username: "admin", Role: users.RoleAdmin}
+	user.SetPassword("admin")
+	srv.Users.Store(user)
+
+	r := chi.NewRouter()
+	r.Use(middleware.RealIP)
+	r.Use(middleware.RequestID)
+	r.Use(srv.MiddlewareAccessLogger)
+	r.Use(srv.MiddlewareAuthentication)
+	r.Get("/", srv.HandlerIndex)
+	r.Post("/api/file", srv.HandlerAPIFilePost)
+	r.Get("/api/file/{id}", srv.HandlerAPIFileGet)
+	r.Post("/api/login", srv.HandlerAPILogin)
+	r.Post("/api/user", srv.HandlerAPIUserCreate)
+	srv.Handler = r
+
+	return srv
+}
+
+func (s *HTTPServer) HandlerIndex(w http.ResponseWriter, r *http.Request) {
+	_, _ = w.Write([]byte("index"))
+}
+
+func (s *HTTPServer) HandlerAPIFilePost(w http.ResponseWriter, r *http.Request) {
+	f := &files.File{
+		ID:   uuid.Must(uuid.NewRandom()).String(),
+		Body: r.Body,
+	}
+	reqID := middleware.GetReqID(r.Context())
+
+	// Check if multipart form
+	ct := r.Header.Get("Content-Type")
+	if strings.Contains(ct, "multipart/form-data") {
+		s.processMultiPartFormUpload(w, r)
+		return
+	}
+	err := s.Files.Store(f)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		s.Logger.Warnw("Error storing file.", "req_id", reqID, "error", err, "id", f.ID, "remote_addr", r.RemoteAddr)
+		return
+	}
+	s.Logger.Infow("Stored file.", "req_id", reqID, "id", f.ID, "remote_addr", r.RemoteAddr)
+	var resp = struct {
+		Message string `json:"message"`
+		ID      string `json:"id"`
+		URL     string `json:"url"`
+	}{
+		Message: "OK",
+		ID:      f.ID,
+		URL:     "TODO",
+	}
+	w.WriteHeader(http.StatusAccepted)
+	encoder := json.NewEncoder(w)
+	if err := encoder.Encode(&resp); err != nil {
+		s.Logger.Warnw("Error encoding response to client.", "req_id", reqID, "error", err, "remote_addr", r.RemoteAddr)
+	}
+}
+
+func (s *HTTPServer) HandlerAPIFileGet(w http.ResponseWriter, r *http.Request) {
+	id := chi.URLParam(r, "id")
+	if id == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+
+	f, err := s.Files.Get(id)
+	if err != nil {
+		// TODO: LOG
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
+	if _, err := io.Copy(w, f.Body); err != nil {
+		reqID := middleware.GetReqID(r.Context())
+		s.Logger.Warnw("Error writing file to client.", "req_id", reqID, "error", err, "remote_addr", r.RemoteAddr)
+	}
+}
+
+func (s *HTTPServer) processMultiPartFormUpload(w http.ResponseWriter, r *http.Request) {
+	reqID := middleware.GetReqID(r.Context())
+
+	var responses []ResponseAPIFilePost
+
+	if err := r.ParseMultipartForm(1024 * 1024 * 10); err != nil {
+		s.Logger.Warnw("Error parsing multipart form.", "req_id", reqID, "err", err)
+	}
+	for k := range r.MultipartForm.File {
+		ff, fh, err := r.FormFile(k)
+		if err != nil {
+			s.Logger.Warnw("Error reading file from multipart form.", "req_id", reqID, "error", err)
+			return
+		}
+		f := &files.File{
+			ID:               uuid.Must(uuid.NewRandom()).String(),
+			OriginalFilename: fh.Filename,
+			Body:             ff,
+		}
+
+		if err := s.Files.Store(f); err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			s.Logger.Warnw("Error storing file.", "req_id", reqID, "error", err, "id", f.ID, "remote_addr", r.RemoteAddr)
+			return
+		}
+		s.Logger.Infow("Stored file.", "req_id", reqID, "id", f.ID, "filename", f.OriginalFilename, "remote_addr", r.RemoteAddr)
+
+		responses = append(responses, ResponseAPIFilePost{Message: "OK", ID: f.ID, URL: "TODO"})
+
+	}
+
+	w.WriteHeader(http.StatusAccepted)
+	encoder := json.NewEncoder(w)
+	if err := encoder.Encode(&responses); err != nil {
+		s.Logger.Warnw("Error encoding response to client.", "req_id", reqID, "error", err, "remote_addr", r.RemoteAddr)
+	}
+}
+
+func (s *HTTPServer) HandlerAPILogin(w http.ResponseWriter, r *http.Request) {
+	reqID := middleware.GetReqID(r.Context())
+	var expectedRequest RequestAPILogin
+	decoder := json.NewDecoder(r.Body)
+	defer r.Body.Close()
+	if err := decoder.Decode(&expectedRequest); err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+
+	token, err := s.Auth.Login(expectedRequest.Username, expectedRequest.Password)
+	if err != nil {
+		w.WriteHeader(http.StatusUnauthorized)
+		return
+	}
+
+	response := ResponseAPILogin{
+		Token: token,
+	}
+
+	s.Logger.Infow("User logged in.", "req_id", reqID, "username", expectedRequest.Username)
+
+	encoder := json.NewEncoder(w)
+	if err := encoder.Encode(&response); err != nil {
+		s.Logger.Infow("Error encoding json response to client.", "req_id", reqID, "error", err, "remote_addr", r.RemoteAddr)
+	}
+}
+
+func (s *HTTPServer) HandlerAPIUserCreate(w http.ResponseWriter, r *http.Request) {
+	reqID := middleware.GetReqID(r.Context())
+	defer r.Body.Close()
+
+	role, err := RoleFromRequest(r)
+	if err != nil || role != users.RoleAdmin {
+		w.WriteHeader(http.StatusUnauthorized)
+		return
+	}
+
+	var req RequestAPIUserCreate
+	decoder := json.NewDecoder(r.Body)
+	if err := decoder.Decode(&req); err != nil {
+		s.Logger.Debugw("Error parsing request.", "req_id", reqID, "error", err, "remote_addr", r.RemoteAddr)
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+
+	// TODO: Ensure user does not already exist
+	user := &users.User{Username: req.Username}
+	if err := user.SetPassword(req.Password); err != nil {
+		s.Logger.Warnw("Error setting user password.", "req_id", reqID, "error", err, "remote_addr", r.RemoteAddr)
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+
+	if err := s.Users.Store(user); err != nil {
+		s.Logger.Warnw("Error setting user password.", "req_id", reqID, "error", err, "remote_addr", r.RemoteAddr)
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+	w.WriteHeader(http.StatusAccepted)
+	s.Logger.Infow("Created user.", "req_id", reqID, "remote_addr", r.RemoteAddr, "username", req.Username)
+}

api/http_test.go

@@ -1,4 +1,4 @@
-package gpaste_test
+package api_test
 
 import (
 	"bytes"
@@ -11,16 +11,19 @@ import (
 	"testing"
 
 	"git.t-juice.club/torjus/gpaste"
+	"git.t-juice.club/torjus/gpaste/api"
+	"git.t-juice.club/torjus/gpaste/users"
 )
 
 func TestHandlers(t *testing.T) {
 	cfg := &gpaste.ServerConfig{
+		SigningSecret: "abc123",
 		Store: &gpaste.ServerStoreConfig{
 			Type: "memory",
 		},
 		URL: "http://localhost:8080",
 	}
-	hs := gpaste.NewHTTPServer(cfg)
+	hs := api.NewHTTPServer(cfg)
 
 	t.Run("HandlerIndex", func(t *testing.T) {
 		rr := httptest.NewRecorder()
@@ -96,4 +99,48 @@ func TestHandlers(t *testing.T) {
 			}
 		})
 	})
+	t.Run("HandlerAPILogin", func(t *testing.T) {
+		// TODO: Add test
+		username := "admin"
+		password := "admin"
+		user := &users.User{Username: username}
+		if err := user.SetPassword(password); err != nil {
+			t.Fatalf("Error setting user password: %s", err)
+		}
+		if err := hs.Users.Store(user); err != nil {
+			t.Fatalf("Error storing user: %s", err)
+		}
+
+		requestData := struct {
+			Username string `json:"username"`
+			Password string `json:"password"`
+		}{
+			Username: username,
+			Password: password,
+		}
+
+		body := new(bytes.Buffer)
+		encoder := json.NewEncoder(body)
+		if err := encoder.Encode(&requestData); err != nil {
+			t.Fatalf("Error encoding request body: %s", err)
+		}
+
+		rr := httptest.NewRecorder()
+		req := httptest.NewRequest(http.MethodPost, "/api/login", body)
+
+		hs.Handler.ServeHTTP(rr, req)
+
+		responseData := struct {
+			Token string `json:"token"`
+		}{}
+
+		decoder := json.NewDecoder(rr.Body)
+		if err := decoder.Decode(&responseData); err != nil {
+			t.Fatalf("Error decoding response: %s", err)
+		}
+
+		if _, err := hs.Auth.ValidateToken(responseData.Token); err != nil {
+			t.Fatalf("Unable to validate received token: %s", err)
+		}
+	})
 }

api/json.go

@@ -0,0 +1,20 @@
+package api
+
+type RequestAPIUserCreate struct {
+	Username string `json:"username"`
+	Password string `json:"password"`
+}
+
+type RequestAPILogin struct {
+	Username string `json:"username"`
+	Password string `json:"password"`
+}
+
+type ResponseAPILogin struct {
+	Token string `json:"token"`
+}
+type ResponseAPIFilePost struct {
+	Message string `json:"message"`
+	ID      string `json:"id"`
+	URL     string `json:"url"`
+}

api/middleware.go

@@ -0,0 +1,116 @@
+package api
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	"git.t-juice.club/torjus/gpaste"
+	"git.t-juice.club/torjus/gpaste/users"
+	"github.com/go-chi/chi/v5/middleware"
+)
+
+type authCtxKey int
+
+const (
+	authCtxUsername authCtxKey = iota
+	authCtxAuthLevel
+	authCtxClaims
+)
+
+func (s *HTTPServer) MiddlewareAccessLogger(next http.Handler) http.Handler {
+	fn := func(w http.ResponseWriter, r *http.Request) {
+		ww := middleware.NewWrapResponseWriter(w, r.ProtoMajor)
+		t1 := time.Now()
+
+		reqID := middleware.GetReqID(r.Context())
+
+		defer func() {
+			s.AccessLogger.Infow(r.Method,
+				"path", r.URL.Path,
+				"status", ww.Status(),
+				"written", ww.BytesWritten(),
+				"remote_addr", r.RemoteAddr,
+				"processing_time_ms", time.Since(t1).Milliseconds(),
+				"req_id", reqID)
+		}()
+
+		next.ServeHTTP(ww, r)
+	}
+	return http.HandlerFunc(fn)
+}
+
+func (s *HTTPServer) MiddlewareAuthentication(next http.Handler) http.Handler {
+	fn := func(w http.ResponseWriter, r *http.Request) {
+		reqID := middleware.GetReqID(r.Context())
+		header := r.Header.Get("Authorization")
+		if header == "" {
+			s.Logger.Debugw("Request has no auth header.", "req_id", reqID)
+			next.ServeHTTP(w, r)
+			return
+		}
+
+		splitHeader := strings.Split(header, "Bearer ")
+		if len(splitHeader) != 2 {
+			s.Logger.Debugw("Request has invalid token.", "req_id", reqID)
+			next.ServeHTTP(w, r)
+			return
+		}
+		token := splitHeader[1]
+
+		claims, err := s.Auth.ValidateToken(token)
+		if err != nil {
+			s.Logger.Debugw("Request has invalid token.", "req_id", reqID)
+			next.ServeHTTP(w, r)
+			return
+		}
+
+		ctx := context.WithValue(r.Context(), authCtxUsername, claims.Subject)
+		ctx = context.WithValue(ctx, authCtxAuthLevel, claims.Role)
+		ctx = context.WithValue(ctx, authCtxClaims, claims)
+		withCtx := r.WithContext(ctx)
+		s.Logger.Debugw("Request is authenticated.", "req_id", reqID, "username", claims.Subject, "role", claims.Role)
+
+		next.ServeHTTP(w, withCtx)
+	}
+
+	return http.HandlerFunc(fn)
+}
+
+func UsernameFromRequest(r *http.Request) (string, error) {
+	rawUsername := r.Context().Value(authCtxUsername)
+	if rawUsername == nil {
+		return "", fmt.Errorf("no username")
+	}
+	username, ok := rawUsername.(string)
+	if !ok {
+		return "", fmt.Errorf("no username")
+	}
+	return username, nil
+}
+
+func RoleFromRequest(r *http.Request) (users.Role, error) {
+	rawLevel := r.Context().Value(authCtxAuthLevel)
+	if rawLevel == nil {
+		return users.RoleUnset, fmt.Errorf("no username")
+	}
+	level, ok := rawLevel.(users.Role)
+	if !ok {
+		return users.RoleUnset, fmt.Errorf("no username")
+	}
+	return level, nil
+}
+
+func ClaimsFromRequest(r *http.Request) *gpaste.Claims {
+	rawClaims := r.Context().Value(authCtxAuthLevel)
+	if rawClaims == nil {
+		return nil
+	}
+	claims, ok := rawClaims.(*gpaste.Claims)
+	if !ok {
+		return nil
+	}
+	return claims
+}

auth.go

@@ -0,0 +1,68 @@
+package gpaste
+
+import (
+	"fmt"
+	"time"
+
+	"git.t-juice.club/torjus/gpaste/users"
+	"github.com/golang-jwt/jwt"
+	"github.com/google/uuid"
+)
+
+type AuthService struct {
+	users      users.UserStore
+	hmacSecret []byte
+}
+
+type Claims struct {
+	Role users.Role `json:"role,omitempty"`
+
+	jwt.StandardClaims
+}
+
+func NewAuthService(store users.UserStore, signingSecret []byte) *AuthService {
+	return &AuthService{users: store, hmacSecret: signingSecret}
+}
+
+func (as *AuthService) Login(username, password string) (string, error) {
+	user, err := as.users.Get(username)
+	if err != nil {
+		return "", err
+	}
+
+	if err := user.ValidatePassword(password); err != nil {
+		return "", err
+	}
+
+	// TODO: Set iss and aud
+	claims := new(Claims)
+	claims.Subject = user.Username
+	claims.ExpiresAt = time.Now().Add(7 * 24 * time.Hour).Unix()
+	claims.NotBefore = time.Now().Unix()
+	claims.IssuedAt = time.Now().Unix()
+	claims.Id = uuid.NewString()
+	claims.Role = user.Role
+
+	token := jwt.NewWithClaims(jwt.GetSigningMethod("HS256"), claims)
+	signed, err := token.SignedString(as.hmacSecret)
+	if err != nil {
+		return "", err
+	}
+
+	return signed, nil
+}
+
+func (as *AuthService) ValidateToken(rawToken string) (*Claims, error) {
+	claims := &Claims{}
+	token, err := jwt.ParseWithClaims(rawToken, claims, func(t *jwt.Token) (interface{}, error) {
+		return as.hmacSecret, nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	if !token.Valid {
+		return nil, fmt.Errorf("invalid token")
+	}
+
+	return claims, nil
+}

auth_test.go

@@ -0,0 +1,56 @@
+package gpaste_test
+
+import (
+	"math/rand"
+	"testing"
+
+	"git.t-juice.club/torjus/gpaste"
+	"git.t-juice.club/torjus/gpaste/users"
+	"github.com/google/go-cmp/cmp"
+)
+
+func TestAuth(t *testing.T) {
+	t.Run("Token", func(t *testing.T) {
+		us := users.NewMemoryUserStore()
+		secret := []byte(randomString(16))
+		as := gpaste.NewAuthService(us, secret)
+
+		username := randomString(8)
+		password := randomString(16)
+
+		user := &users.User{Username: username, Role: users.RoleAdmin}
+		if err := user.SetPassword(password); err != nil {
+			t.Fatalf("error setting user password: %s", err)
+		}
+		if err := us.Store(user); err != nil {
+			t.Fatalf("Error storing user: %s", err)
+		}
+
+		token, err := as.Login(username, password)
+		if err != nil {
+			t.Fatalf("Error creating token: %s", err)
+		}
+
+		claims, err := as.ValidateToken(token)
+		if err != nil {
+			t.Fatalf("Error validating token: %s", err)
+		}
+		if claims.Role != user.Role {
+			t.Fatalf("Token role is not correct: %s", cmp.Diff(claims.Role, user.Role))
+		}
+		invalidToken := `eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE2NDMyMjk3NjMsImp0aSI6ImUzNDk5NWI1LThiZmMtNDQyNy1iZDgxLWFmNmQ3OTRiYzM0YiIsImlhdCI6MTY0MjYyNDk2MywibmJmIjoxNjQyNjI0OTYzLCJzdWIiOiJYdE5Hemt5ZSJ9.VM6dkwSLaBv8cStkWRVVv9ADjdUrHGHrlB7GB7Ly7n8`
+		if _, err := as.ValidateToken(invalidToken); err == nil {
+			t.Fatalf("Invalid token passed validation")
+		}
+	})
+}
+
+func randomString(length int) string {
+	const charset = "abcdefghijklmnopqrstabcdefghijklmnopqrstuvwxyz" +
+		"ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	b := make([]byte, length)
+	for i := range b {
+		b[i] = charset[rand.Intn(len(charset))]
+	}
+	return string(b)
+}

client/client.go

@@ -0,0 +1,164 @@
+package client
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/http"
+	"time"
+
+	"git.t-juice.club/torjus/gpaste/api"
+	"git.t-juice.club/torjus/gpaste/files"
+	"github.com/google/uuid"
+)
+
+type Client struct {
+	BaseURL   string
+	AuthToken string
+
+	httpClient http.Client
+}
+
+func (c *Client) Login(ctx context.Context, username, password string) error {
+	url := fmt.Sprintf("%s/api/login", c.BaseURL)
+	// TODO: Change timeout
+	ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
+	defer cancel()
+
+	body := new(bytes.Buffer)
+	requestData := api.RequestAPILogin{
+		Username: username,
+		Password: password,
+	}
+	encoder := json.NewEncoder(body)
+	if err := encoder.Encode(&requestData); err != nil {
+		return fmt.Errorf("error encoding response: %w", err)
+	}
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, body)
+	if err != nil {
+		return fmt.Errorf("error creating request: %w", err)
+	}
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return fmt.Errorf("unable to perform request: %s", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("got non-ok response from server: %s", resp.Status)
+	}
+
+	var responseData api.ResponseAPILogin
+
+	decoder := json.NewDecoder(resp.Body)
+	if err := decoder.Decode(&responseData); err != nil {
+		return fmt.Errorf("unable to parse response: %s", err)
+	}
+	c.AuthToken = responseData.Token
+
+	return nil
+}
+
+func (c *Client) UserCreate(ctx context.Context, username, password string) error {
+	url := fmt.Sprintf("%s/api/user", c.BaseURL)
+	body := new(bytes.Buffer)
+
+	requestData := &api.RequestAPIUserCreate{
+		Username: username,
+		Password: password,
+	}
+	encoder := json.NewEncoder(body)
+	if err := encoder.Encode(requestData); err != nil {
+		return fmt.Errorf("error encoding response: %w", err)
+	}
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, body)
+	if err != nil {
+		return fmt.Errorf("error creating request: %w", err)
+	}
+
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", c.AuthToken))
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return fmt.Errorf("unable to perform request: %s", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusAccepted {
+		return fmt.Errorf("got non-ok response from server: %s", resp.Status)
+	}
+
+	return nil
+}
+
+func (c *Client) Download(ctx context.Context, id string) (io.ReadCloser, error) {
+	url := fmt.Sprintf("%s/api/file/%s", c.BaseURL, id)
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+	if err != nil {
+		return nil, fmt.Errorf("error creating request: %w", err)
+	}
+
+	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", c.AuthToken))
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("unable to perform request: %s", err)
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("got non-ok response from server: %s", resp.Status)
+	}
+
+	return resp.Body, nil
+}
+
+func (c *Client) Upload(ctx context.Context, files ...*files.File) ([]api.ResponseAPIFilePost, error) {
+	url := fmt.Sprintf("%s/api/file", c.BaseURL)
+	client := &http.Client{}
+
+	// TODO: Change timeout
+	ctx, cancel := context.WithTimeout(ctx, 10*time.Minute)
+	defer cancel()
+
+	// TODO: Improve buffering
+	buf := &bytes.Buffer{}
+	mw := multipart.NewWriter(buf)
+
+	for _, file := range files {
+		fw, err := mw.CreateFormFile(uuid.Must(uuid.NewRandom()).String(), file.OriginalFilename)
+		if err != nil {
+			return nil, err
+		}
+		if _, err := io.Copy(fw, file.Body); err != nil {
+			return nil, err
+		}
+		file.Body.Close()
+	}
+	mw.Close()
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, buf)
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Add("Content-Type", mw.FormDataContentType())
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	var expectedResp []api.ResponseAPIFilePost
+
+	decoder := json.NewDecoder(resp.Body)
+	if err := decoder.Decode(&expectedResp); err != nil {
+		return nil, fmt.Errorf("error decoding response: %w", err)
+	}
+
+	return expectedResp, nil
+}

client/client_test.go

@@ -0,0 +1,165 @@
+package client_test
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net"
+	"strings"
+	"testing"
+	"time"
+
+	"git.t-juice.club/torjus/gpaste"
+	"git.t-juice.club/torjus/gpaste/api"
+	"git.t-juice.club/torjus/gpaste/client"
+	"git.t-juice.club/torjus/gpaste/files"
+	"git.t-juice.club/torjus/gpaste/users"
+	"github.com/google/go-cmp/cmp"
+	"github.com/google/uuid"
+)
+
+func TestClient(t *testing.T) {
+	listener, err := net.Listen("tcp", ":0")
+	if err != nil {
+		panic(err)
+	}
+
+	port := listener.Addr().(*net.TCPAddr).Port
+	cfg := &gpaste.ServerConfig{
+		LogLevel:      "ERROR",
+		URL:           fmt.Sprintf("http://localhost:%d", port),
+		SigningSecret: "TEST",
+		Store:         &gpaste.ServerStoreConfig{Type: "memory"},
+	}
+
+	srv := api.NewHTTPServer(cfg)
+
+	go func() {
+		srv.Serve(listener)
+	}()
+
+	t.Cleanup(func() {
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+		srv.Shutdown(ctx)
+		listener.Close()
+	})
+
+	// Add users
+	username := "admin"
+	password := "admin"
+	user := &users.User{
+		Username: username,
+		Role:     users.RoleAdmin,
+	}
+	if err := user.SetPassword(password); err != nil {
+		t.Fatalf("Error setting password: %s", err)
+	}
+	if err := srv.Users.Store(user); err != nil {
+		t.Fatalf("Error storing user: %s", err)
+	}
+
+	t.Run("Login", func(t *testing.T) {
+		client := client.Client{BaseURL: cfg.URL}
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+		if err := client.Login(ctx, username, password); err != nil {
+			t.Fatalf("Error logging in: %s", err)
+		}
+
+		claims, err := srv.Auth.ValidateToken(client.AuthToken)
+		if err != nil {
+			t.Errorf("unable to get claims from token: %s", err)
+		}
+
+		if claims.Role != user.Role {
+			t.Errorf("Claims have wrong role: %s", cmp.Diff(claims.Role, user.Role))
+		}
+		if claims.Subject != username {
+			t.Errorf("Claims have wrong role: %s", cmp.Diff(claims.Subject, username))
+		}
+
+		t.Run("UserCreate", func(t *testing.T) {
+			ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+			defer cancel()
+			username := "user"
+			password := "user"
+
+			if err := client.UserCreate(ctx, username, password); err != nil {
+				t.Fatalf("Error creating user: %s", err)
+			}
+
+			user, err := srv.Users.Get(username)
+			if err != nil {
+				t.Fatalf("Error getting new user: %s", err)
+			}
+
+			if user.Username != username {
+				t.Errorf("Username does not match.")
+			}
+			if err := user.ValidatePassword(password); err != nil {
+				t.Errorf("Unable to validate password: %s", err)
+			}
+		})
+	})
+	t.Run("Upload", func(t *testing.T) {
+		client := client.Client{BaseURL: cfg.URL}
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+		fileContents := "this is the test file"
+		fileBody := io.NopCloser(strings.NewReader(fileContents))
+		file := &files.File{
+			OriginalFilename: "filename.txt",
+			Body:             fileBody,
+		}
+
+		resp, err := client.Upload(ctx, file)
+		if err != nil {
+			t.Fatalf("Error uploading: %s", err)
+		}
+
+		retrieved, err := srv.Files.Get(resp[0].ID)
+		if err != nil {
+			t.Fatalf("Error getting uploaded file from store: %s", err)
+		}
+		defer retrieved.Body.Close()
+
+		buf := new(strings.Builder)
+		if _, err := io.Copy(buf, retrieved.Body); err != nil {
+			t.Fatalf("error reading body from store: %s", err)
+		}
+		if buf.String() != fileContents {
+			t.Errorf("File contents does not match: %s", cmp.Diff(buf.String(), fileContents))
+		}
+	})
+	t.Run("Download", func(t *testing.T) {
+		client := client.Client{BaseURL: cfg.URL}
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+		fileContents := "this is the test file"
+		fileBody := io.NopCloser(strings.NewReader(fileContents))
+		file := &files.File{
+			ID:               uuid.NewString(),
+			OriginalFilename: "filename.txt",
+			Body:             fileBody,
+		}
+
+		if err := srv.Files.Store(file); err != nil {
+			t.Fatalf("Error putting file in store: %s", err)
+		}
+
+		body, err := client.Download(ctx, file.ID)
+		if err != nil {
+			t.Fatalf("Error uploading: %s", err)
+		}
+		defer body.Close()
+
+		buf := new(strings.Builder)
+		if _, err := io.Copy(buf, body); err != nil {
+			t.Fatalf("error reading body from store: %s", err)
+		}
+		if buf.String() != fileContents {
+			t.Errorf("File contents does not match: %s", cmp.Diff(buf.String(), fileContents))
+		}
+	})
+}

cmd/client/actions/actions.go

@@ -0,0 +1,120 @@
+package actions
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"os"
+	"strings"
+	"syscall"
+	"time"
+
+	"git.t-juice.club/torjus/gpaste/client"
+	"git.t-juice.club/torjus/gpaste/files"
+	"github.com/urfave/cli/v2"
+	"golang.org/x/term"
+)
+
+func ActionUpload(c *cli.Context) error {
+	clnt := client.Client{
+		BaseURL: c.String("url"),
+	}
+	for _, arg := range c.Args().Slice() {
+		f, err := os.Open(arg)
+		if err != nil {
+			return err
+		}
+		defer f.Close()
+		file := &files.File{
+			OriginalFilename: arg,
+			Body:             f,
+		}
+		resp, err := clnt.Upload(c.Context, file)
+		if err != nil {
+			errmsg := fmt.Sprintf("Error uploading file: %s", err)
+			return cli.Exit(errmsg, 1)
+		}
+		fmt.Printf("Uploaded file %s - %s", file.OriginalFilename, resp[0].URL)
+	}
+	return nil
+}
+
+func ActionLogin(c *cli.Context) error {
+	username := c.Args().First()
+	if username == "" {
+		return cli.Exit("USERNAME not supplied.", 1)
+	}
+	password, err := readPassword()
+	if err != nil {
+		return fmt.Errorf("error reading password: %w", err)
+	}
+
+	clnt := client.Client{
+		BaseURL: c.String("url"),
+	}
+	if err := clnt.Login(c.Context, username, password); err != nil {
+		errmsg := fmt.Sprintf("Error logging in: %s", err)
+		return cli.Exit(errmsg, 1)
+	}
+	// TODO: Store this somewhere, so we don't need to log in each time
+	fmt.Println("Successfully logged in.")
+
+	return nil
+}
+
+func ActionUserCreate(c *cli.Context) error {
+	// TODO: Needs to supply auth token to actually work
+	fmt.Println("Need to be logged in to create user")
+	username := readString("Enter username: ")
+	password, err := readPassword()
+	if err != nil {
+		return fmt.Errorf("error reading password: %w", err)
+	}
+
+	clnt := client.Client{
+		BaseURL: c.String("url"),
+	}
+	ctx, cancel := context.WithTimeout(c.Context, 10*time.Second)
+	defer cancel()
+
+	if err := clnt.Login(ctx, username, password); err != nil {
+		errmsg := fmt.Sprintf("Error logging in: %s", err)
+		return cli.Exit(errmsg, 1)
+	}
+
+	fmt.Println("User to create:")
+	username = readString("Enter username: ")
+	password, err = readPassword()
+	if err != nil {
+		return fmt.Errorf("error reading password: %w", err)
+	}
+
+	if err := clnt.UserCreate(ctx, username, password); err != nil {
+		errmsg := fmt.Sprintf("Error creating user: %s", err)
+		return cli.Exit(errmsg, 1)
+	}
+
+	fmt.Printf("Created user %s\n", username)
+
+	return nil
+}
+
+func readPassword() (string, error) {
+	fmt.Print("Enter Password: ")
+	bytePassword, err := term.ReadPassword(int(syscall.Stdin))
+	if err != nil {
+		return "", err
+	}
+
+	password := string(bytePassword)
+	return strings.TrimSpace(password), nil
+}
+
+func readString(prompt string) string {
+	fmt.Print(prompt)
+	scanner := bufio.NewScanner(os.Stdin)
+	for scanner.Scan() {
+		return scanner.Text()
+	}
+	return ""
+}

cmd/client/client.go

@@ -1,17 +1,10 @@
 package main
 
 import (
-	"bytes"
-	"context"
-	"encoding/json"
 	"fmt"
-	"io"
-	"mime/multipart"
-	"net/http"
 	"os"
-	"time"
 
-	"github.com/google/uuid"
+	"git.t-juice.club/torjus/gpaste/cmd/client/actions"
 	"github.com/urfave/cli/v2"
 )
 
@@ -32,76 +25,38 @@ func main() {
 				Name:  "config",
 				Usage: "Path to config-file.",
 			},
+			&cli.StringFlag{
+				Name:  "url",
+				Usage: "Base url of gpaste server",
+			},
 		},
 		Commands: []*cli.Command{
 			{
 				Name:      "upload",
 				Usage:     "Upload file(s)",
 				ArgsUsage: "FILE [FILE]...",
-				Flags: []cli.Flag{
-					&cli.StringFlag{
-						Name:  "url",
-						Usage: "Base url of gpaste server",
+				Action:    actions.ActionUpload,
+			},
+			{
+				Name:      "login",
+				Usage:     "Login to gpaste server",
+				ArgsUsage: "USERNAME",
+				Action:    actions.ActionLogin,
+			},
+			{
+				Name:  "admin",
+				Usage: "Admin related commands",
+				Subcommands: []*cli.Command{
+					{
+						Name:      "create-user",
+						Usage:     "Create a new user",
+						ArgsUsage: "USERNAME",
+						Action:    actions.ActionUserCreate,
 					},
 				},
-				Action: ActionUpload,
 			},
 		},
 	}
 
 	app.Run(os.Args)
 }
-
-func ActionUpload(c *cli.Context) error {
-	url := fmt.Sprintf("%s/api/file", c.String("url"))
-	client := &http.Client{}
-	// TODO: Change timeout
-	ctx, cancel := context.WithTimeout(c.Context, 10*time.Minute)
-	defer cancel()
-
-	buf := &bytes.Buffer{}
-	mw := multipart.NewWriter(buf)
-
-	for _, arg := range c.Args().Slice() {
-		f, err := os.Open(arg)
-		if err != nil {
-			return err
-		}
-		defer f.Close()
-		fw, err := mw.CreateFormFile(uuid.Must(uuid.NewRandom()).String(), arg)
-		if err != nil {
-			return err
-		}
-		if _, err := io.Copy(fw, f); err != nil {
-			return err
-		}
-	}
-	mw.Close()
-	req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, buf)
-	if err != nil {
-		return err
-	}
-	req.Header.Add("Content-Type", mw.FormDataContentType())
-
-	resp, err := client.Do(req)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-
-	var expectedResp []struct {
-		Message string `json:"message"`
-		ID      string `json:"id"`
-		URL     string `json:"url"`
-	}
-
-	decoder := json.NewDecoder(resp.Body)
-	if err := decoder.Decode(&expectedResp); err != nil {
-		return fmt.Errorf("error decoding response: %w", err)
-	}
-
-	for _, r := range expectedResp {
-		fmt.Printf("Uploaded file %s\n", r.ID)
-	}
-	return nil
-}

cmd/server/actions/actions.go

@@ -0,0 +1,105 @@
+package actions
+
+import (
+	"context"
+	"net/http"
+	"os"
+	"os/signal"
+	"strings"
+	"time"
+
+	"git.t-juice.club/torjus/gpaste"
+	"git.t-juice.club/torjus/gpaste/api"
+	"github.com/urfave/cli/v2"
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+)
+
+func ActionServe(c *cli.Context) error {
+	configPath := "gpaste-server.toml"
+	if c.IsSet("config") {
+		configPath = c.String("config")
+	}
+
+	f, err := os.Open(configPath)
+	if err != nil {
+		return cli.Exit(err, 1)
+	}
+	defer f.Close()
+	cfg, err := gpaste.ServerConfigFromReader(f)
+	if err != nil {
+		return cli.Exit(err, 1)
+	}
+	// Setup loggers
+	rootLogger := getRootLogger(cfg.LogLevel)
+	serverLogger := rootLogger.Named("SERV")
+	accessLogger := rootLogger.Named("ACCS")
+
+	// Setup contexts for clean shutdown
+	rootCtx, rootCancel := signal.NotifyContext(context.Background(), os.Interrupt)
+	defer rootCancel()
+	httpCtx, httpCancel := context.WithCancel(rootCtx)
+	defer httpCancel()
+	httpShutdownCtx, httpShutdownCancel := context.WithCancel(context.Background())
+	defer httpShutdownCancel()
+
+	go func() {
+		srv := api.NewHTTPServer(cfg)
+		srv.Addr = cfg.ListenAddr
+		srv.Logger = serverLogger
+		srv.AccessLogger = accessLogger
+
+		// Wait for cancel
+		go func() {
+			<-httpCtx.Done()
+			timeoutCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+			defer cancel()
+			srv.Shutdown(timeoutCtx)
+		}()
+		serverLogger.Infow("Starting HTTP server.", "addr", cfg.ListenAddr)
+		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			serverLogger.Errorw("Error during shutdown.", "error", err)
+		}
+		serverLogger.Infow("HTTP server shutdown complete.", "addr", cfg.ListenAddr)
+		httpShutdownCancel()
+	}()
+	<-httpShutdownCtx.Done()
+
+	return nil
+}
+
+func getRootLogger(level string) *zap.SugaredLogger {
+	logEncoderConfig := zap.NewProductionEncoderConfig()
+	logEncoderConfig.EncodeCaller = zapcore.ShortCallerEncoder
+	logEncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
+	logEncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
+	logEncoderConfig.EncodeDuration = zapcore.StringDurationEncoder
+
+	rootLoggerConfig := &zap.Config{
+		Level:            zap.NewAtomicLevelAt(zap.DebugLevel),
+		OutputPaths:      []string{"stdout"},
+		ErrorOutputPaths: []string{"stdout"},
+		Encoding:         "console",
+		EncoderConfig:    logEncoderConfig,
+		DisableCaller:    true,
+	}
+
+	switch strings.ToUpper(level) {
+	case "DEBUG":
+		rootLoggerConfig.DisableCaller = false
+		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.DebugLevel)
+	case "INFO":
+		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.InfoLevel)
+	case "WARN", "WARNING":
+		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.WarnLevel)
+	case "ERR", "ERROR":
+		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.ErrorLevel)
+	}
+
+	rootLogger, err := rootLoggerConfig.Build()
+	if err != nil {
+		panic(err)
+	}
+
+	return rootLogger.Sugar()
+}

cmd/server/server.go

@@ -1,18 +1,11 @@
 package main
 
 import (
-	"context"
 	"fmt"
-	"net/http"
 	"os"
-	"os/signal"
-	"strings"
-	"time"
 
-	"git.t-juice.club/torjus/gpaste"
+	"git.t-juice.club/torjus/gpaste/cmd/server/actions"
 	"github.com/urfave/cli/v2"
-	"go.uber.org/zap"
-	"go.uber.org/zap/zapcore"
 )
 
 var (
@@ -33,95 +26,8 @@ func main() {
 				Usage: "Path to config-file.",
 			},
 		},
-		Action: ActionServe,
+		Action: actions.ActionServe,
 	}
 
 	app.Run(os.Args)
 }
-
-func ActionServe(c *cli.Context) error {
-	configPath := "gpaste-server.toml"
-	if c.IsSet("config") {
-		configPath = c.String("config")
-	}
-
-	f, err := os.Open(configPath)
-	if err != nil {
-		return cli.Exit(err, 1)
-	}
-	defer f.Close()
-	cfg, err := gpaste.ServerConfigFromReader(f)
-	if err != nil {
-		return cli.Exit(err, 1)
-	}
-	// Setup loggers
-	rootLogger := getRootLogger(cfg.LogLevel)
-	serverLogger := rootLogger.Named("SERV")
-
-	// Setup contexts for clean shutdown
-	rootCtx, rootCancel := signal.NotifyContext(context.Background(), os.Interrupt)
-	defer rootCancel()
-	httpCtx, httpCancel := context.WithCancel(rootCtx)
-	defer httpCancel()
-	httpShutdownCtx, httpShutdownCancel := context.WithCancel(context.Background())
-	defer httpShutdownCancel()
-
-	go func() {
-		srv := gpaste.NewHTTPServer(cfg)
-		srv.Addr = cfg.ListenAddr
-		srv.Logger = serverLogger
-
-		// Wait for cancel
-		go func() {
-			<-httpCtx.Done()
-			timeoutCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-			defer cancel()
-			srv.Shutdown(timeoutCtx)
-		}()
-		serverLogger.Infow("Starting HTTP server.", "addr", cfg.ListenAddr)
-		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
-			serverLogger.Errorw("Error during shutdown.", "error", err)
-		}
-		serverLogger.Infow("HTTP server shutdown complete.", "addr", cfg.ListenAddr)
-		httpShutdownCancel()
-	}()
-	<-httpShutdownCtx.Done()
-
-	return nil
-}
-
-func getRootLogger(level string) *zap.SugaredLogger {
-	logEncoderConfig := zap.NewProductionEncoderConfig()
-	logEncoderConfig.EncodeCaller = zapcore.ShortCallerEncoder
-	logEncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
-	logEncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
-	logEncoderConfig.EncodeDuration = zapcore.StringDurationEncoder
-
-	rootLoggerConfig := &zap.Config{
-		Level:            zap.NewAtomicLevelAt(zap.DebugLevel),
-		OutputPaths:      []string{"stdout"},
-		ErrorOutputPaths: []string{"stdout"},
-		Encoding:         "console",
-		EncoderConfig:    logEncoderConfig,
-		DisableCaller:    true,
-	}
-
-	switch strings.ToUpper(level) {
-	case "DEBUG":
-		rootLoggerConfig.DisableCaller = false
-		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.DebugLevel)
-	case "INFO":
-		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.InfoLevel)
-	case "WARN", "WARNING":
-		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.WarnLevel)
-	case "ERR", "ERROR":
-		rootLoggerConfig.Level = zap.NewAtomicLevelAt(zap.ErrorLevel)
-	}
-
-	rootLogger, err := rootLoggerConfig.Build()
-	if err != nil {
-		panic(err)
-	}
-
-	return rootLogger.Sugar()
-}

config.go

@@ -10,10 +10,11 @@ import (
 )
 
 type ServerConfig struct {
-	LogLevel   string             `toml:"LogLevel"`
-	URL        string             `toml:"URL"`
-	ListenAddr string             `toml:"ListenAddr"`
-	Store      *ServerStoreConfig `toml:"Store"`
+	LogLevel      string             `toml:"LogLevel"`
+	URL           string             `toml:"URL"`
+	ListenAddr    string             `toml:"ListenAddr"`
+	SigningSecret string             `toml:"SigningSecret"`
+	Store         *ServerStoreConfig `toml:"Store"`
 }
 
 type ServerStoreConfig struct {
@@ -54,6 +55,10 @@ func (sc *ServerConfig) updateFromEnv() {
 		sc.ListenAddr = value
 	}
 
+	if value, ok := os.LookupEnv("GPASTE_SIGNINGSECRET"); ok {
+		sc.SigningSecret = value
+	}
+
 	if value, ok := os.LookupEnv("GPASTE_STORE_TYPE"); ok {
 		sc.Store.Type = value
 	}

config_test.go

@@ -16,6 +16,7 @@ func TestServerConfig(t *testing.T) {
 LogLevel = "INFO"
 URL = "http://paste.example.org"
 ListenAddr = ":8080"
+SigningSecret = "abc999"
 
 [Store]
 Type = "fs"
@@ -23,9 +24,10 @@ Type = "fs"
 Dir = "/tmp"
 `
 		expected := &gpaste.ServerConfig{
-			LogLevel:   "INFO",
-			URL:        "http://paste.example.org",
-			ListenAddr: ":8080",
+			LogLevel:      "INFO",
+			URL:           "http://paste.example.org",
+			ListenAddr:    ":8080",
+			SigningSecret: "abc999",
 			Store: &gpaste.ServerStoreConfig{
 				Type: "fs",
 				FS: &gpaste.ServerStoreFSStoreConfig{
@@ -48,16 +50,18 @@ Dir = "/tmp"
 		clearEnv()
 
 		var envMap map[string]string = map[string]string{
-			"GPASTE_LOGLEVEL":     "DEBUG",
-			"GPASTE_URL":          "http://gpaste.example.org",
-			"GPASTE_STORE_TYPE":   "fs",
-			"GPASTE_LISTENADDR":   ":8000",
-			"GPASTE_STORE_FS_DIR": "/tmp",
+			"GPASTE_LOGLEVEL":      "DEBUG",
+			"GPASTE_URL":           "http://gpaste.example.org",
+			"GPASTE_STORE_TYPE":    "fs",
+			"GPASTE_LISTENADDR":    ":8000",
+			"GPASTE_SIGNINGSECRET": "test1345",
+			"GPASTE_STORE_FS_DIR":  "/tmp",
 		}
 		expected := &gpaste.ServerConfig{
-			LogLevel:   "DEBUG",
-			URL:        "http://gpaste.example.org",
-			ListenAddr: ":8000",
+			LogLevel:      "DEBUG",
+			URL:           "http://gpaste.example.org",
+			ListenAddr:    ":8000",
+			SigningSecret: "test1345",
 			Store: &gpaste.ServerStoreConfig{
 				Type: "fs",
 				FS: &gpaste.ServerStoreFSStoreConfig{

files/filestore.go

@@ -1,4 +1,4 @@
-package gpaste
+package files
 
 import (
 	"io"

files/filestore_fs.go

@@ -1,4 +1,4 @@
-package gpaste
+package files
 
 import (
 	"encoding/json"

files/filestore_fs_test.go

@@ -0,0 +1,26 @@
+package files_test
+
+import (
+	"testing"
+
+	"git.t-juice.club/torjus/gpaste/files"
+)
+
+func TestFSFileStore(t *testing.T) {
+	dir := t.TempDir()
+	s, err := files.NewFSFileStore(dir)
+	if err != nil {
+		t.Fatalf("Error creating store: %s", err)
+	}
+
+	RunFilestoreTest(s, t)
+	persistentDir := t.TempDir()
+	newFunc := func() files.FileStore {
+		s, err := files.NewFSFileStore(persistentDir)
+		if err != nil {
+			t.Fatalf("Error creating store: %s", err)
+		}
+		return s
+	}
+	RunPersistentFilestoreTest(newFunc, t)
+}

files/filestore_memory.go

@@ -1,4 +1,4 @@
-package gpaste
+package files
 
 import (
 	"bytes"

files/filestore_memory_test.go

@@ -1,13 +1,13 @@
-package gpaste_test
+package files_test
 
 import (
 	"testing"
 
-	"git.t-juice.club/torjus/gpaste"
+	"git.t-juice.club/torjus/gpaste/files"
 )
 
 func TestMemoryFileStore(t *testing.T) {
-	s := gpaste.NewMemoryFileStore()
+	s := files.NewMemoryFileStore()
 
 	RunFilestoreTest(s, t)
 }

files/filestore_test.go

@@ -0,0 +1,157 @@
+package files_test
+
+import (
+	"bytes"
+	"io"
+	"strings"
+	"testing"
+	"time"
+
+	"git.t-juice.club/torjus/gpaste/files"
+	"github.com/google/go-cmp/cmp"
+	"github.com/google/uuid"
+)
+
+func RunFilestoreTest(s files.FileStore, t *testing.T) {
+	t.Run("Basic", func(t *testing.T) {
+		// Create
+		dataString := "TEST_LOL_OMG"
+		id := uuid.Must(uuid.NewRandom()).String()
+		bodyBuf := &bytes.Buffer{}
+		bodyBuf.Write([]byte(dataString))
+		body := io.NopCloser(bodyBuf)
+		f := &files.File{
+			ID:       id,
+			MaxViews: 0,
+			Body:     body,
+		}
+
+		err := s.Store(f)
+		if err != nil {
+			t.Fatalf("Unable to store file: %s", err)
+		}
+
+		// Retrieve
+		retrieved, err := s.Get(id)
+		if err != nil {
+			t.Fatalf("Unable to retrieve file: %s", err)
+		}
+
+		retrievedBuf := &bytes.Buffer{}
+		_, err = retrievedBuf.ReadFrom(retrieved.Body)
+		if err != nil {
+			t.Fatalf("Unable to read retrieved body: %s", err)
+		}
+		_ = retrieved.Body.Close()
+		if err != nil {
+			t.Fatalf("Error reading from retrieved file: %s", err)
+		}
+
+		if retrievedBuf.String() != dataString {
+			t.Fatalf("Data from retrieved body mismatch. Got %s want %s", retrievedBuf.String(), dataString)
+		}
+
+		// List
+		ids, err := s.List()
+		if err != nil {
+			t.Fatalf("Error doing list: %s", err)
+		}
+		if len(ids) != 1 {
+			t.Fatalf("List has wrong length: %d", len(ids))
+		}
+		if ids[0] != id {
+			t.Fatalf("ID is wrong. Got %s want %s", ids[0], id)
+		}
+
+		// Delete
+		if err := s.Delete(id); err != nil {
+			t.Fatalf("Error deleting file: %s", err)
+		}
+
+		ids, err = s.List()
+		if err != nil {
+			t.Fatalf("Error listing after delete: %s", err)
+		}
+		if len(ids) != 0 {
+			t.Fatalf("List after delete has wrong length: %d", len(ids))
+		}
+	})
+}
+
+func RunPersistentFilestoreTest(newStoreFunc func() files.FileStore, t *testing.T) {
+	s := newStoreFunc()
+
+	files := []struct {
+		File         *files.File
+		ExpectedData string
+	}{
+		{
+			File: &files.File{
+				ID:               uuid.NewString(),
+				OriginalFilename: "testfile.txt",
+				MaxViews:         5,
+				ExpiresOn:        time.Now().Add(10 * time.Minute),
+				Body:             io.NopCloser(strings.NewReader("cocks!")),
+			},
+			ExpectedData: "cocks!",
+		},
+		{
+			File: &files.File{
+				ID:               uuid.NewString(),
+				OriginalFilename: "testfile2.txt",
+				MaxViews:         5,
+				ExpiresOn:        time.Now().Add(10 * time.Minute),
+				Body:             io.NopCloser(strings.NewReader("derps!")),
+			},
+			ExpectedData: "derps!",
+		},
+	}
+
+	for _, f := range files {
+		err := s.Store(f.File)
+		if err != nil {
+			t.Fatalf("Error storing file: %s", err)
+		}
+	}
+	for _, f := range files {
+		retrieved, err := s.Get(f.File.ID)
+		if err != nil {
+			t.Fatalf("Unable to retrieve file: %s", err)
+		}
+
+		ignoreBody := cmp.FilterPath(func(p cmp.Path) bool { return p.String() == "Body" }, cmp.Ignore())
+		if !cmp.Equal(retrieved, f.File, ignoreBody) {
+			t.Errorf("Mismatch: %s", cmp.Diff(retrieved, f.File))
+		}
+		buf := new(strings.Builder)
+		if _, err := io.Copy(buf, retrieved.Body); err != nil {
+			t.Fatalf("Error reading from body: %s", err)
+		}
+		retrieved.Body.Close()
+		if buf.String() != f.ExpectedData {
+			t.Fatalf("Data does not match. %s", cmp.Diff(buf.String(), f.ExpectedData))
+		}
+	}
+
+	// Reopen store, and fetch again
+	s = newStoreFunc()
+	for _, f := range files {
+		retrieved, err := s.Get(f.File.ID)
+		if err != nil {
+			t.Fatalf("Unable to retrieve file: %s", err)
+		}
+
+		ignoreBody := cmp.FilterPath(func(p cmp.Path) bool { return p.String() == "Body" }, cmp.Ignore())
+		if !cmp.Equal(retrieved, f.File, ignoreBody) {
+			t.Errorf("Mismatch: %s", cmp.Diff(retrieved, f.File))
+		}
+		buf := new(strings.Builder)
+		if _, err := io.Copy(buf, retrieved.Body); err != nil {
+			t.Fatalf("Error reading from body: %s", err)
+		}
+		retrieved.Body.Close()
+		if buf.String() != f.ExpectedData {
+			t.Fatalf("Data does not match. %s", cmp.Diff(buf.String(), f.ExpectedData))
+		}
+	}
+}

filestore_fs_test.go

@@ -1,17 +0,0 @@
-package gpaste_test
-
-import (
-	"testing"
-
-	"git.t-juice.club/torjus/gpaste"
-)
-
-func TestFSFileStore(t *testing.T) {
-	dir := t.TempDir()
-	s, err := gpaste.NewFSFileStore(dir)
-	if err != nil {
-		t.Fatalf("Error creating store: %s", err)
-	}
-
-	RunFilestoreTest(s, t)
-}

filestore_test.go

@@ -1,76 +0,0 @@
-package gpaste_test
-
-import (
-	"bytes"
-	"io"
-	"testing"
-
-	"git.t-juice.club/torjus/gpaste"
-	"github.com/google/uuid"
-)
-
-func RunFilestoreTest(s gpaste.FileStore, t *testing.T) {
-	t.Run("Basic", func(t *testing.T) {
-		// Create
-		dataString := "TEST_LOL_OMG"
-		id := uuid.Must(uuid.NewRandom()).String()
-		bodyBuf := &bytes.Buffer{}
-		bodyBuf.Write([]byte(dataString))
-		body := io.NopCloser(bodyBuf)
-		f := &gpaste.File{
-			ID:       id,
-			MaxViews: 0,
-			Body:     body,
-		}
-
-		err := s.Store(f)
-		if err != nil {
-			t.Fatalf("Unable to store file: %s", err)
-		}
-
-		// Retrieve
-		retrieved, err := s.Get(id)
-		if err != nil {
-			t.Fatalf("Unable to retrieve file: %s", err)
-		}
-
-		retrievedBuf := &bytes.Buffer{}
-		_, err = retrievedBuf.ReadFrom(retrieved.Body)
-		if err != nil {
-			t.Fatalf("Unable to read retrieved body: %s", err)
-		}
-		_ = retrieved.Body.Close()
-		if err != nil {
-			t.Fatalf("Error reading from retrieved file: %s", err)
-		}
-
-		if retrievedBuf.String() != dataString {
-			t.Fatalf("Data from retrieved body mismatch. Got %s want %s", retrievedBuf.String(), dataString)
-		}
-
-		// List
-		ids, err := s.List()
-		if err != nil {
-			t.Fatalf("Error doing list: %s", err)
-		}
-		if len(ids) != 1 {
-			t.Fatalf("List has wrong length: %d", len(ids))
-		}
-		if ids[0] != id {
-			t.Fatalf("ID is wrong. Got %s want %s", ids[0], id)
-		}
-
-		// Delete
-		if err := s.Delete(id); err != nil {
-			t.Fatalf("Error deleting file: %s", err)
-		}
-
-		ids, err = s.List()
-		if err != nil {
-			t.Fatalf("Error listing after delete: %s", err)
-		}
-		if len(ids) != 0 {
-			t.Fatalf("List after delete has wrong length: %d", len(ids))
-		}
-	})
-}

go.mod

@@ -7,10 +7,14 @@ require github.com/google/uuid v1.3.0
 require github.com/go-chi/chi/v5 v5.0.7
 
 require (
+	github.com/golang-jwt/jwt v3.2.2+incompatible
 	github.com/google/go-cmp v0.5.6
 	github.com/pelletier/go-toml v1.9.4
 	github.com/urfave/cli/v2 v2.3.0
+	go.etcd.io/bbolt v1.3.6
 	go.uber.org/zap v1.20.0
+	golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce
+	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
 )
 
 require (
@@ -18,4 +22,5 @@ require (
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.7.0 // indirect
+	golang.org/x/sys v0.0.0-20220114195835-da31bd327af9 // indirect
 )

go.sum

@@ -9,6 +9,8 @@ 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/go-chi/chi/v5 v5.0.7 h1:rDTPXLDHGATaeHvVlLcR4Qe0zftYethFucbjVQ1PxU8=
 github.com/go-chi/chi/v5 v5.0.7/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
+github.com/golang-jwt/jwt v3.2.2+incompatible h1:IfV12K8xAKAnZqdXVzCZ+TOjboZ2keLg81eXfW3O+oY=
+github.com/golang-jwt/jwt v3.2.2+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
 github.com/google/go-cmp v0.5.6 h1:BKbKCqvP6I+rmFHt06ZmyQtvB8xAkWdhFyr0ZUNZcxQ=
 github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
@@ -33,6 +35,8 @@ github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/urfave/cli/v2 v2.3.0 h1:qph92Y649prgesehzOrQjdWyxFOp/QVM+6imKHad91M=
 github.com/urfave/cli/v2 v2.3.0/go.mod h1:LJmUH05zAU44vOAcrfzZQKsZbVcdbOG8rtL3/XcUArI=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
+go.etcd.io/bbolt v1.3.6 h1:/ecaJf0sk1l4l6V4awd65v2C3ILy7MSj+s/x1ADCIMU=
+go.etcd.io/bbolt v1.3.6/go.mod h1:qXsaaIqmgQH0T+OPdb99Bf+PKfBBQVAdyD6TY9G8XM4=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
 go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
@@ -45,22 +49,33 @@ go.uber.org/zap v1.20.0 h1:N4oPlghZwYG55MlU6LXk/Zp00FVNE9X9wrYO8CEs4lc=
 go.uber.org/zap v1.20.0/go.mod h1:wjWOCqI0f2ZZrJF/UufIOkiC8ii6tm1iqIsLo76RfJw=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce h1:Roh6XWxHFKrPgC/EQhVubSAGQ6Ozk6IdxHSzt1mR0EI=
+golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200923182605-d9f96fdee20d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220114195835-da31bd327af9 h1:XfKQ4OlFl8okEOr5UvAqFRVj8pY/4yfcXrddB8qAbU0=
+golang.org/x/sys v0.0.0-20220114195835-da31bd327af9/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 h1:JGgROgKl9N8DuW20oFS5gxc+lE67/N3FcwmBPMe7ArY=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 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/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=

gpaste-server.toml

@@ -1,4 +1,4 @@
-LogLevel = "INFO"
+LogLevel = "DEBUG"
 URL = "http://paste.example.org"
 ListenAddr = ":8080"
 

http.go

@@ -1,137 +0,0 @@
-package gpaste
-
-import (
-	"encoding/json"
-	"io"
-	"net/http"
-	"strings"
-
-	"github.com/go-chi/chi/v5"
-	"github.com/google/uuid"
-	"go.uber.org/zap"
-)
-
-type HTTPServer struct {
-	store  FileStore
-	config *ServerConfig
-	Logger *zap.SugaredLogger
-	http.Server
-}
-
-func NewHTTPServer(cfg *ServerConfig) *HTTPServer {
-	srv := &HTTPServer{
-		config: cfg,
-		Logger: zap.NewNop().Sugar(),
-	}
-	srv.store = NewMemoryFileStore()
-
-	r := chi.NewRouter()
-	r.Get("/", srv.HandlerIndex)
-	r.Post("/api/file", srv.HandlerAPIFilePost)
-	r.Get("/api/file/{id}", srv.HandlerAPIFileGet)
-	srv.Handler = r
-
-	return srv
-}
-
-func (s *HTTPServer) HandlerIndex(w http.ResponseWriter, r *http.Request) {
-	_, _ = w.Write([]byte("index"))
-}
-
-func (s *HTTPServer) HandlerAPIFilePost(w http.ResponseWriter, r *http.Request) {
-	f := &File{
-		ID:   uuid.Must(uuid.NewRandom()).String(),
-		Body: r.Body,
-	}
-
-	// Check if multipart form
-	ct := r.Header.Get("Content-Type")
-	if strings.Contains(ct, "multipart/form-data") {
-		s.processMultiPartFormUpload(w, r)
-		return
-	}
-	err := s.store.Store(f)
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		s.Logger.Warnw("Error storing file.", "erorr", err, "id", f.ID, "remote_addr", r.RemoteAddr)
-		return
-	}
-	s.Logger.Infow("Stored file.", "id", f.ID, "remote_addr", r.RemoteAddr)
-	var resp = struct {
-		Message string `json:"message"`
-		ID      string `json:"id"`
-		URL     string `json:"url"`
-	}{
-		Message: "OK",
-		ID:      f.ID,
-		URL:     "TODO",
-	}
-	w.WriteHeader(http.StatusAccepted)
-	encoder := json.NewEncoder(w)
-	if err := encoder.Encode(&resp); err != nil {
-		s.Logger.Warnw("Error encoding response to client.", "error", err, "remote_addr", r.RemoteAddr)
-	}
-}
-
-func (s *HTTPServer) HandlerAPIFileGet(w http.ResponseWriter, r *http.Request) {
-	id := chi.URLParam(r, "id")
-	if id == "" {
-		w.WriteHeader(http.StatusBadRequest)
-		return
-	}
-
-	f, err := s.store.Get(id)
-	if err != nil {
-		// TODO: LOG
-		w.WriteHeader(http.StatusInternalServerError)
-		return
-	}
-
-	w.WriteHeader(http.StatusOK)
-	if _, err := io.Copy(w, f.Body); err != nil {
-		s.Logger.Warnw("Error writing file to client.", "error", err, "remote_addr", r.RemoteAddr)
-	}
-}
-
-func (s *HTTPServer) processMultiPartFormUpload(w http.ResponseWriter, r *http.Request) {
-	s.Logger.Debugw("Processing multipart form.")
-	type resp struct {
-		Message string `json:"message"`
-		ID      string `json:"id"`
-		URL     string `json:"url"`
-	}
-
-	var responses []resp
-
-	if err := r.ParseMultipartForm(1024 * 1024 * 10); err != nil {
-		s.Logger.Warnw("Error parsing multipart form.", "err", err)
-	}
-	for k := range r.MultipartForm.File {
-		ff, fh, err := r.FormFile(k)
-		if err != nil {
-			s.Logger.Warnw("Error reading file from multipart form.", "error", err)
-			return
-		}
-		f := &File{
-			ID:               uuid.Must(uuid.NewRandom()).String(),
-			OriginalFilename: fh.Filename,
-			Body:             ff,
-		}
-
-		if err := s.store.Store(f); err != nil {
-			w.WriteHeader(http.StatusInternalServerError)
-			s.Logger.Warnw("Error storing file.", "erorr", err, "id", f.ID, "remote_addr", r.RemoteAddr)
-			return
-		}
-		s.Logger.Infow("Stored file.", "id", f.ID, "filename", f.OriginalFilename, "remote_addr", r.RemoteAddr)
-
-		responses = append(responses, resp{Message: "OK", ID: f.ID, URL: "TODO"})
-
-	}
-
-	w.WriteHeader(http.StatusAccepted)
-	encoder := json.NewEncoder(w)
-	if err := encoder.Encode(&responses); err != nil {
-		s.Logger.Warnw("Error encoding response to client.", "error", err, "remote_addr", r.RemoteAddr)
-	}
-}

users/user.go

@@ -0,0 +1,36 @@
+package users
+
+import "golang.org/x/crypto/bcrypt"
+
+type Role string
+
+const (
+	RoleUnset Role = ""
+	RoleUser  Role = "user"
+	RoleAdmin Role = "admin"
+)
+
+type User struct {
+	Username       string `json:"username"`
+	HashedPassword []byte `json:"hashed_password"`
+	Role           Role   `json:"role"`
+}
+
+type UserStore interface {
+	Get(username string) (*User, error)
+	Store(user *User) error
+	Delete(username string) error
+}
+
+func (u *User) ValidatePassword(password string) error {
+	return bcrypt.CompareHashAndPassword(u.HashedPassword, []byte(password))
+}
+
+func (u *User) SetPassword(password string) error {
+	hashed, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return err
+	}
+	u.HashedPassword = hashed
+	return nil
+}

users/user_test.go

@@ -0,0 +1,37 @@
+package users_test
+
+import (
+	"math/rand"
+	"testing"
+
+	"git.t-juice.club/torjus/gpaste/users"
+)
+
+func TestUser(t *testing.T) {
+	t.Run("Password", func(t *testing.T) {
+		userMap := make(map[string]string)
+		for i := 0; i < 10; i++ {
+			userMap[randomString(8)] = randomString(16)
+		}
+
+		for username, password := range userMap {
+			user := &users.User{Username: username}
+			if err := user.SetPassword(password); err != nil {
+				t.Fatalf("Error setting password: %s", err)
+			}
+			if err := user.ValidatePassword(password); err != nil {
+				t.Fatalf("Error validating password: %s", err)
+			}
+		}
+	})
+}
+
+func randomString(length int) string {
+	const charset = "abcdefghijklmnopqrstabcdefghijklmnopqrstuvwxyz" +
+		"ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	b := make([]byte, length)
+	for i := range b {
+		b[i] = charset[rand.Intn(len(charset))]
+	}
+	return string(b)
+}

users/userstore_bolt.go

@@ -0,0 +1,69 @@
+package users
+
+import (
+	"encoding/json"
+
+	"go.etcd.io/bbolt"
+)
+
+var keyUsers = []byte("users")
+
+type BoltUserStore struct {
+	db *bbolt.DB
+}
+
+func NewBoltUserStore(path string) (*BoltUserStore, error) {
+	db, err := bbolt.Open(path, 0666, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := db.Update(func(tx *bbolt.Tx) error {
+		_, err := tx.CreateBucketIfNotExists(keyUsers)
+		return err
+	}); err != nil {
+		return nil, err
+	}
+
+	return &BoltUserStore{db: db}, nil
+}
+
+func (s *BoltUserStore) Close() error {
+	return s.db.Close()
+}
+
+func (s *BoltUserStore) Get(username string) (*User, error) {
+	var user User
+	err := s.db.View(func(tx *bbolt.Tx) error {
+		bkt := tx.Bucket(keyUsers)
+		rawUser := bkt.Get([]byte(username))
+		if err := json.Unmarshal(rawUser, &user); err != nil {
+			return err
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &user, nil
+}
+
+func (s *BoltUserStore) Store(user *User) error {
+	return s.db.Update(func(tx *bbolt.Tx) error {
+		bkt := tx.Bucket(keyUsers)
+
+		data, err := json.Marshal(user)
+		if err != nil {
+			return err
+		}
+
+		return bkt.Put([]byte(user.Username), data)
+	})
+}
+
+func (s *BoltUserStore) Delete(username string) error {
+	return s.db.Update(func(tx *bbolt.Tx) error {
+		bkt := tx.Bucket(keyUsers)
+		return bkt.Delete([]byte(username))
+	})
+}

users/userstore_bolt_test.go

@@ -0,0 +1,27 @@
+package users_test
+
+import (
+	"path/filepath"
+	"testing"
+
+	"git.t-juice.club/torjus/gpaste/users"
+)
+
+func TestBoltUserStore(t *testing.T) {
+	tmpDir := t.TempDir()
+	newFunc := func() (func(), users.UserStore) {
+		tmpFile := filepath.Join(tmpDir, randomString(8))
+
+		store, err := users.NewBoltUserStore(tmpFile)
+		if err != nil {
+			t.Fatalf("Error creating store: %s", err)
+		}
+		cleanup := func() {
+			store.Close()
+		}
+		return cleanup, store
+	}
+
+	RunUserStoreTest(newFunc, t)
+
+}

users/userstore_memory.go

@@ -0,0 +1,39 @@
+package users
+
+import (
+	"fmt"
+	"sync"
+)
+
+type MemoryUserStore struct {
+	users map[string]*User
+	lock  sync.Mutex
+}
+
+func NewMemoryUserStore() *MemoryUserStore {
+	return &MemoryUserStore{users: make(map[string]*User)}
+}
+func (s *MemoryUserStore) Get(username string) (*User, error) {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+	user, ok := s.users[username]
+	if !ok {
+		return nil, fmt.Errorf("no such user: %s", username)
+	}
+
+	return user, nil
+}
+
+func (s *MemoryUserStore) Store(user *User) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+	s.users[user.Username] = user
+	return nil
+}
+
+func (s *MemoryUserStore) Delete(username string) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+	delete(s.users, username)
+	return nil
+}

users/userstore_memory_test.go

@@ -0,0 +1,15 @@
+package users_test
+
+import (
+	"testing"
+
+	"git.t-juice.club/torjus/gpaste/users"
+)
+
+func TestMemoryUserStore(t *testing.T) {
+	newFunc := func() (func(), users.UserStore) {
+		return func() {}, users.NewMemoryUserStore()
+	}
+
+	RunUserStoreTest(newFunc, t)
+}

users/userstore_test.go

@@ -0,0 +1,51 @@
+package users_test
+
+import (
+	"testing"
+
+	"git.t-juice.club/torjus/gpaste/users"
+	"github.com/google/go-cmp/cmp"
+)
+
+func RunUserStoreTest(newFunc func() (func(), users.UserStore), t *testing.T) {
+	t.Run("Basics", func(t *testing.T) {
+		cleanup, s := newFunc()
+		t.Cleanup(cleanup)
+
+		userMap := make(map[string]*users.User)
+		passwordMap := make(map[string]string)
+		for i := 0; i < 10; i++ {
+			username := randomString(8)
+			password := randomString(16)
+			passwordMap[username] = password
+			user := &users.User{
+				Username: username,
+				Role:     users.RoleAdmin,
+			}
+			if err := user.SetPassword(password); err != nil {
+				t.Fatalf("Error setting password: %s", err)
+			}
+			userMap[username] = user
+		}
+
+		for _, user := range userMap {
+			if err := s.Store(user); err != nil {
+				t.Fatalf("Error storing user: %s", err)
+			}
+		}
+
+		for k := range userMap {
+			user, err := s.Get(k)
+			if err != nil {
+				t.Errorf("Error getting user: %s", err)
+			}
+			if err := user.ValidatePassword(passwordMap[user.Username]); err != nil {
+				t.Errorf("Error verifying password: %s", err)
+			}
+
+			if !cmp.Equal(user, userMap[k]) {
+				t.Errorf("User mismatch: %s", cmp.Diff(user, userMap[k]))
+			}
+		}
+	})
+}