Store password endpoint

containers/build.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-docker build -t trisa/courier:latest -f ./containers/Dockerfile .
+docker build -t trisa/courier:latest -f ./containers/courier/Dockerfile .

pkg/api/v1/api.go

@@ -4,6 +4,7 @@ import "context"
 
 type CourierClient interface {
 	Status(context.Context) (*StatusReply, error)
+	StoreCertificatePassword(context.Context, *StorePasswordRequest) error
 }
 
 // Reply encodes generic JSON responses from the API.
@@ -17,3 +18,8 @@ type StatusReply struct {
 	Uptime  string `json:"uptime,omitempty"`
 	Version string `json:"version,omitempty"`
 }
+
+type StorePasswordRequest struct {
+	ID       string `json:"id"`
+	Password string `json:"password"`
+}

pkg/api/v1/client.go

@@ -4,6 +4,8 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"errors"
+	"fmt"
 	"io"
 	"net/http"
 	"net/url"
@@ -80,6 +82,27 @@ func (c *APIv1) Status(ctx context.Context) (out *StatusReply, err error) {
 	return out, nil
 }
 
+// StoreCertificatePassword stores a password for an encrypted certificate.
+func (c *APIv1) StoreCertificatePassword(ctx context.Context, in *StorePasswordRequest) (err error) {
+	if in.ID == "" {
+		return ErrIDRequired
+	}
+
+	path := fmt.Sprintf("/v1/certs/%s/pkcs12password", in.ID)
+
+	// Create the HTTP request
+	var req *http.Request
+	if req, err = c.NewRequest(ctx, http.MethodPost, path, in, nil); err != nil {
+		return err
+	}
+
+	// Do the request
+	if _, err = c.Do(req, nil, true); err != nil {
+		return err
+	}
+	return nil
+}
+
 //===========================================================================
 // Client Helpers
 //===========================================================================
@@ -126,3 +149,40 @@ func (c *APIv1) NewRequest(ctx context.Context, method, path string, data interf
 
 	return req, nil
 }
+
+// Do executes an http request against the server, performs error checking, and
+// deserializes response data into the specified struct.
+func (s *APIv1) Do(req *http.Request, data interface{}, checkStatus bool) (rep *http.Response, err error) {
+	if rep, err = s.client.Do(req); err != nil {
+		return rep, err
+	}
+	defer rep.Body.Close()
+
+	// Detects http status errors if they've occurred
+	if checkStatus {
+		if rep.StatusCode < 200 || rep.StatusCode >= 300 {
+			// Attempt to read the error response from the generic reply
+			var reply Reply
+			if err = json.NewDecoder(rep.Body).Decode(&reply); err == nil {
+				if reply.Error != "" {
+					return rep, NewStatusError(rep.StatusCode, reply.Error)
+				}
+			}
+
+			return rep, errors.New(rep.Status)
+		}
+	}
+
+	// Deserializes the JSON data from the body
+	if data != nil && rep.StatusCode >= 200 && rep.StatusCode < 300 && rep.StatusCode != http.StatusNoContent {
+		// Checks the content type to ensure data deserialization is possible
+		if ct := rep.Header.Get("Content-Type"); ct != contentType {
+			return rep, fmt.Errorf("unexpected content type: %q", ct)
+		}
+
+		if err = json.NewDecoder(rep.Body).Decode(data); err != nil {
+			return nil, fmt.Errorf("could not deserialize response data: %s", err)
+		}
+	}
+	return rep, nil
+}

pkg/api/v1/errors.go

@@ -1,6 +1,7 @@
 package api
 
 import (
+	"encoding/json"
 	"errors"
 	"fmt"
 	"net/http"
@@ -9,13 +10,15 @@ import (
 )
 
 var (
+	unsuccessful        = Reply{Success: false}
 	notFound            = Reply{Success: false, Error: "resource not found"}
 	notAllowed          = Reply{Success: false, Error: "method not allowed"}
 	ErrEndpointRequired = errors.New("endpoint is required")
+	ErrIDRequired       = errors.New("missing ID in request")
 )
 
 func NewStatusError(code int, err string) error {
-	return StatusError{Code: code, Err: err}
+	return &StatusError{Code: code, Err: err}
 }
 
 type StatusError struct {
@@ -27,6 +30,33 @@ func (e StatusError) Error() string {
 	return fmt.Sprintf("[%d]: %s", e.Code, e.Err)
 }
 
+// ErrorResponse constructs an new response from the error or returns a success: false.
+func ErrorResponse(err interface{}) Reply {
+	if err == nil {
+		return unsuccessful
+	}
+
+	rep := Reply{Success: false}
+	switch err := err.(type) {
+	case error:
+		rep.Error = err.Error()
+	case string:
+		rep.Error = err
+	case fmt.Stringer:
+		rep.Error = err.String()
+	case json.Marshaler:
+		data, e := err.MarshalJSON()
+		if e != nil {
+			panic(err)
+		}
+		rep.Error = string(data)
+	default:
+		rep.Error = "unhandled error response"
+	}
+
+	return rep
+}
+
 // NotFound returns a standard 404 response.
 func NotFound(c *gin.Context) {
 	c.JSON(http.StatusNotFound, notFound)

pkg/certs.go

@@ -0,0 +1,39 @@
+package courier
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/trisacrypto/courier/pkg/api/v1"
+)
+
+// StoreCertificatePassword stores the password for an encrypted certificate and
+// returns a 204 No Content response.
+func (s *Server) StoreCertificatePassword(c *gin.Context) {
+	var (
+		err error
+		req *api.StorePasswordRequest
+	)
+
+	// Parse the request body
+	req = &api.StorePasswordRequest{}
+	if err := c.BindJSON(req); err != nil {
+		c.JSON(http.StatusBadRequest, api.ErrorResponse(err))
+		return
+	}
+
+	// Password is required
+	if req.Password == "" {
+		c.JSON(http.StatusBadRequest, api.ErrorResponse("missing password in request"))
+		return
+	}
+
+	// Store the password
+	if err = s.store.UpdatePassword(c.Param("id"), []byte(req.Password)); err != nil {
+		c.JSON(http.StatusInternalServerError, api.ErrorResponse(err))
+		return
+	}
+
+	// Return 204 No Content
+	c.Status(http.StatusNoContent)
+}

pkg/certs_test.go

@@ -0,0 +1,53 @@
+package courier_test
+
+import (
+	"context"
+	"errors"
+	"net/http"
+
+	"github.com/trisacrypto/courier/pkg/api/v1"
+)
+
+func (s *courierTestSuite) TestStoreCertificatePassword() {
+	require := s.Require()
+
+	s.Run("HappyPath", func() {
+		// Configure the store mock to return a successful response
+		req := &api.StorePasswordRequest{
+			ID:       "certID",
+			Password: "password",
+		}
+		s.store.OnUpdatePassword = func(name string, password []byte) error {
+			require.Equal(req.ID, name, "wrong password name passed to store")
+			require.Equal([]byte(req.Password), password, "wrong password passed to store")
+			return nil
+		}
+		defer s.store.Reset()
+
+		// Make a request to the endpoint
+		err := s.client.StoreCertificatePassword(context.Background(), req)
+		require.NoError(err, "could not store certificate password")
+	})
+
+	s.Run("MissingPassword", func() {
+		req := &api.StorePasswordRequest{
+			ID: "certID",
+		}
+		err := s.client.StoreCertificatePassword(context.Background(), req)
+		s.CheckHTTPStatus(err, http.StatusBadRequest, "wrong error code for missing password")
+	})
+
+	s.Run("StoreError", func() {
+		s.store.OnUpdatePassword = func(name string, password []byte) error {
+			return errors.New("internal store error")
+		}
+		defer s.store.Reset()
+
+		req := &api.StorePasswordRequest{
+			ID:       "certID",
+			Password: "password",
+		}
+		err := s.client.StoreCertificatePassword(context.Background(), req)
+		s.CheckHTTPStatus(err, http.StatusInternalServerError, "wrong error code for store error")
+	})
+}

pkg/server.go

@@ -2,6 +2,7 @@ package courier
 
 import (
 	"context"
+	"errors"
 	"net"
 	"net/http"
 	"os"
@@ -13,6 +14,8 @@ import (
 	"github.com/rs/zerolog/log"
 	"github.com/trisacrypto/courier/pkg/api/v1"
 	"github.com/trisacrypto/courier/pkg/config"
+	"github.com/trisacrypto/courier/pkg/store"
+	"github.com/trisacrypto/courier/pkg/store/local"
 )
 
 // New creates a new server object from configuration but does not serve it yet.
@@ -30,7 +33,15 @@ func New(conf config.Config) (s *Server, err error) {
 		echan: make(chan error, 1),
 	}
 
-	// TODO: Initialize the configured stores
+	// Open the store
+	switch {
+	case conf.LocalStorage.Enabled:
+		if s.store, err = local.Open(conf.LocalStorage); err != nil {
+			return nil, err
+		}
+	default:
+		return nil, errors.New("no storage backend configured")
+	}
 
 	// Create the router
 	gin.SetMode(conf.Mode)
@@ -61,6 +72,7 @@ type Server struct {
 	conf    config.Config
 	srv     *http.Server
 	router  *gin.Engine
+	store   store.Store
 	started time.Time
 	healthy bool
 	url     string
@@ -144,7 +156,11 @@ func (s *Server) setupRoutes() (err error) {
 		// Status route
 		v1.GET("/status", s.Status)
 
-		// TODO: Password and certificate routes
+		// Certificate routes
+		certs := v1.Group("/certs")
+		{
+			certs.POST("/:id/pkcs12password", s.StoreCertificatePassword)
+		}
 	}
 
 	// Not found and method not allowed routes
@@ -183,3 +199,8 @@ func (s *Server) URL() string {
 	defer s.RUnlock()
 	return s.url
 }
+
+// SetStore directly sets the store for the server.
+func (s *Server) SetStore(store store.Store) {
+	s.store = store
+}

pkg/server_test.go

@@ -9,6 +9,7 @@ import (
 	courier "github.com/trisacrypto/courier/pkg"
 	"github.com/trisacrypto/courier/pkg/api/v1"
 	"github.com/trisacrypto/courier/pkg/config"
+	"github.com/trisacrypto/courier/pkg/store/mock"
 )
 
 // The courier test suite allows us to test the courier API by making actual requests
@@ -17,6 +18,7 @@ type courierTestSuite struct {
 	suite.Suite
 	courier *courier.Server
 	client  api.CourierClient
+	store   *mock.Store
 }
 
 func (s *courierTestSuite) SetupSuite() {
@@ -40,6 +42,10 @@ func (s *courierTestSuite) SetupSuite() {
 	s.courier, err = courier.New(conf)
 	require.NoError(err, "could not create test server")
 
+	// Use a mock store for testing
+	s.store = mock.New()
+	s.courier.SetStore(s.store)
+
 	// Start the server, which will run for the duration of the test suite
 	go s.courier.Serve()
 
@@ -60,3 +66,12 @@ func (s *courierTestSuite) TearDownSuite() {
 func TestCourier(t *testing.T) {
 	suite.Run(t, new(courierTestSuite))
 }
+
+// Check that the correct HTTP status code is in the error
+func (s *courierTestSuite) CheckHTTPStatus(err error, status int, msgAndArgs ...interface{}) {
+	require := s.Require()
+	require.NotNil(err, "expected an HTTP error")
+	statusErr, ok := err.(*api.StatusError)
+	require.True(ok, "expected error to be a StatusError")
+	require.Equal(status, statusErr.Code, msgAndArgs...)
+}

pkg/store/mock/errors.go

@@ -0,0 +1,7 @@
+package mock
+
+import "errors"
+
+var (
+	ErrNotConfigured = errors.New("mock function not configured")
+)