[chore] Refactor account deleting/block logic, tidy up some other processing things (#1599)

* start refactoring account deletion

* update to use state.DB

* further messing about

* some more tidying up

* more tidying, cleaning, nice-making

* further adventures in refactoring and the woes of technical debt

* update fr accept/reject

* poking + prodding

* fix up deleting

* create fave uri

* don't log using requestingAccount.ID because it might be nil

* move getBookmarks function

* use exists query to check for status bookmark

* use deletenotifications func

* fiddle

* delete follow request notif

* split up some db functions

* Fix possible nil pointer panic

* fix more possible nil pointers

* fix license headers

* warn when follow missing (target) account

* return wrapped err when bookmark/fave models can't be retrieved

* simplify self account delete

* warn log likely race condition

* de-sillify status delete loop

* move error check due north

* warn when unfollowSideEffects has no target account

* warn when no boost account is found

* warn + dump follow when no account

* more warnings

* warn on fave account not set

* move for loop inside anonymous function

* fix funky logic

* don't remove mutual account items on block;
do make sure unfollow occurs in both directions!

internal/api/activitypub/users/userget_test.go

@@ -30,7 +30,6 @@ import (
 	"github.com/superseriousbusiness/activity/streams"
 	"github.com/superseriousbusiness/activity/streams/vocab"
 	"github.com/superseriousbusiness/gotosocial/internal/api/activitypub/users"
-	apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
 	"github.com/superseriousbusiness/gotosocial/testrig"
 )
 
@@ -98,10 +97,7 @@ func (suite *UserGetTestSuite) TestGetUserPublicKeyDeleted() {
 	userModule := users.New(suite.processor)
 	targetAccount := suite.testAccounts["local_account_1"]
 
-	suite.processor.Account().DeleteLocal(context.Background(), suite.testAccounts["local_account_1"], &apimodel.AccountDeleteRequest{
-		Password:       "password",
-		DeleteOriginID: targetAccount.ID,
-	})
+	suite.processor.Account().DeleteSelf(context.Background(), suite.testAccounts["local_account_1"])
 
 	// wait for the account delete to be processed
 	if !testrig.WaitFor(func() bool {

internal/api/client/accounts/accountdelete.go

@@ -26,6 +26,7 @@ import (
 	apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
 	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
 	"github.com/superseriousbusiness/gotosocial/internal/oauth"
+	"golang.org/x/crypto/bcrypt"
 )
 
 // AccountDeletePOSTHandler swagger:operation POST /api/v1/accounts/delete accountDelete
@@ -77,15 +78,20 @@ func (m *Module) AccountDeletePOSTHandler(c *gin.Context) {
 		return
 	}
 
+	// Self account delete requires password to ensure it's for real.
 	if form.Password == "" {
 		err = errors.New("no password provided in account delete request")
 		apiutil.ErrorHandler(c, gtserror.NewErrorBadRequest(err, err.Error()), m.processor.InstanceGetV1)
 		return
 	}
 
-	form.DeleteOriginID = authed.Account.ID
+	if err := bcrypt.CompareHashAndPassword([]byte(authed.User.EncryptedPassword), []byte(form.Password)); err != nil {
+		err = errors.New("invalid password provided in account delete request")
+		apiutil.ErrorHandler(c, gtserror.NewErrorForbidden(err, err.Error()), m.processor.InstanceGetV1)
+		return
+	}
 
-	if errWithCode := m.processor.Account().DeleteLocal(c.Request.Context(), authed.Account, form); errWithCode != nil {
+	if errWithCode := m.processor.Account().DeleteSelf(c.Request.Context(), authed.Account); errWithCode != nil {
 		apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
 		return
 	}

internal/api/client/bookmarks/bookmarks_test.go

@@ -275,7 +275,7 @@ func (suite *BookmarkTestSuite) TestGetBookmarksNone() {
 	testUser := suite.testUsers["local_account_1"]
 
 	// Remove all bookmarks for this account.
-	if err := suite.db.DeleteWhere(context.Background(), []db.Where{{Key: "account_id", Value: testAccount.ID}}, &[]*gtsmodel.StatusBookmark{}); err != nil {
+	if err := suite.db.DeleteStatusBookmarks(context.Background(), "", testAccount.ID); err != nil {
 		suite.FailNow(err.Error())
 	}
 

internal/api/client/statuses/statusfave_test.go

@@ -123,7 +123,7 @@ func (suite *StatusFaveTestSuite) TestPostUnfaveable() {
 	defer result.Body.Close()
 	b, err := ioutil.ReadAll(result.Body)
 	assert.NoError(suite.T(), err)
-	assert.Equal(suite.T(), `{"error":"Forbidden"}`, string(b))
+	assert.Equal(suite.T(), `{"error":"Forbidden: status is not faveable"}`, string(b))
 }
 
 func TestStatusFaveTestSuite(t *testing.T) {

internal/api/model/account.go

@@ -206,9 +206,6 @@ type AccountFollowRequest struct {
 type AccountDeleteRequest struct {
 	// Password of the account's user, for confirmation.
 	Password string `form:"password" json:"password" xml:"password"`
-	// The origin of the delete account request.
-	// Can be the ID of the account owner, or the ID of an admin account.
-	DeleteOriginID string `form:"-" json:"-" xml:"-"`
 }
 
 // AccountRole models the role of an account.