[bugfix] Don't call strings.ToLower() on usernames when selecting account by domain+username (#1190)

* don't lowercase account username when doing a select

* test getting remote user with uppercase username

internal/api/client/followrequest/get_test.go

@@ -70,7 +70,7 @@ func (suite *GetTestSuite) TestGet() {
 	b, err := ioutil.ReadAll(result.Body)
 	assert.NoError(suite.T(), err)
 
-	suite.Equal(`[{"id":"01FHMQX3GAABWSM0S2VZEC2SWC","username":"some_user","acct":"some_user@example.org","display_name":"some user","locked":true,"bot":false,"created_at":"2020-08-10T12:13:28.000Z","note":"i'm a real son of a gun","url":"http://example.org/@some_user","avatar":"","avatar_static":"","header":"http://localhost:8080/assets/default_header.png","header_static":"http://localhost:8080/assets/default_header.png","followers_count":0,"following_count":0,"statuses_count":0,"last_status_at":null,"emojis":[],"fields":[]}]`, string(b))
+	suite.Equal(`[{"id":"01FHMQX3GAABWSM0S2VZEC2SWC","username":"Some_User","acct":"Some_User@example.org","display_name":"some user","locked":true,"bot":false,"created_at":"2020-08-10T12:13:28.000Z","note":"i'm a real son of a gun","url":"http://example.org/@Some_User","avatar":"","avatar_static":"","header":"http://localhost:8080/assets/default_header.png","header_static":"http://localhost:8080/assets/default_header.png","followers_count":0,"following_count":0,"statuses_count":0,"last_status_at":null,"emojis":[],"fields":[]}]`, string(b))
 }
 
 func TestGetTestSuite(t *testing.T) {

internal/api/client/search/searchget_test.go

@@ -97,6 +97,23 @@ func (suite *SearchGetTestSuite) TestSearchRemoteAccountByNamestring() {
 	suite.NotNil(gotAccount)
 }
 
+func (suite *SearchGetTestSuite) TestSearchRemoteAccountByNamestringUppercase() {
+	query := "@Some_User@example.org"
+	resolve := true
+
+	searchResult, err := suite.testSearch(query, resolve, http.StatusOK)
+	if err != nil {
+		suite.FailNow(err.Error())
+	}
+
+	if !suite.Len(searchResult.Accounts, 1) {
+		suite.FailNow("expected 1 account in search results but got 0")
+	}
+
+	gotAccount := searchResult.Accounts[0]
+	suite.NotNil(gotAccount)
+}
+
 func (suite *SearchGetTestSuite) TestSearchRemoteAccountByNamestringNoLeadingAt() {
 	query := "brand_new_person@unknown-instance.com"
 	resolve := true

internal/db/bundb/account.go

@@ -22,7 +22,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"strings"
 	"time"
 
 	"codeberg.org/gruf/go-cache/v3/result"
@@ -102,7 +101,6 @@ func (a *accountDB) GetAccountByURL(ctx context.Context, url string) (*gtsmodel.
 }
 
 func (a *accountDB) GetAccountByUsernameDomain(ctx context.Context, username string, domain string) (*gtsmodel.Account, db.Error) {
-	username = strings.ToLower(username)
 	return a.getAccount(
 		ctx,
 		"Username.Domain",

internal/federation/federatingdb/create_test.go

@@ -80,7 +80,7 @@ func (suite *CreateTestSuite) TestCreateNoteForward() {
 	suite.Nil(msg.GTSModel)
 
 	// but we should have a uri set
-	suite.Equal("http://example.org/users/some_user/statuses/afaba698-5740-4e32-a702-af61aa543bc1", msg.APIri.String())
+	suite.Equal("http://example.org/users/Some_User/statuses/afaba698-5740-4e32-a702-af61aa543bc1", msg.APIri.String())
 }
 
 func TestCreateTestSuite(t *testing.T) {

internal/processing/followrequest_test.go

@@ -56,7 +56,7 @@ func (suite *FollowRequestTestSuite) TestFollowRequestAccept() {
 	suite.NoError(errWithCode)
 	suite.EqualValues(&apimodel.Relationship{ID: "01FHMQX3GAABWSM0S2VZEC2SWC", Following: false, ShowingReblogs: false, Notifying: false, FollowedBy: true, Blocking: false, BlockedBy: false, Muting: false, MutingNotifications: false, Requested: false, DomainBlocking: false, Endorsed: false, Note: ""}, relationship)
 
-	// accept should be sent to some_user
+	// accept should be sent to Some_User
 	var sent [][]byte
 	if !testrig.WaitFor(func() bool {
 		sentI, ok := suite.httpClient.SentMessages.Load(requestingAccount.InboxURI)
@@ -119,7 +119,7 @@ func (suite *FollowRequestTestSuite) TestFollowRequestReject() {
 	suite.NoError(errWithCode)
 	suite.EqualValues(&apimodel.Relationship{ID: "01FHMQX3GAABWSM0S2VZEC2SWC", Following: false, ShowingReblogs: false, Notifying: false, FollowedBy: false, Blocking: false, BlockedBy: false, Muting: false, MutingNotifications: false, Requested: false, DomainBlocking: false, Endorsed: false, Note: ""}, relationship)
 
-	// reject should be sent to some_user
+	// reject should be sent to Some_User
 	var sent [][]byte
 	if !testrig.WaitFor(func() bool {
 		sentI, ok := suite.httpClient.SentMessages.Load(requestingAccount.InboxURI)

internal/processing/fromfederator_test.go

@@ -556,12 +556,12 @@ func (suite *FromFederatorTestSuite) TestCreateStatusFromIRI() {
 		APActivityType:   ap.ActivityCreate,
 		GTSModel:         nil, // gtsmodel is nil because this is a forwarded status -- we want to dereference it using the iri
 		ReceivingAccount: receivingAccount,
-		APIri:            testrig.URLMustParse("http://example.org/users/some_user/statuses/afaba698-5740-4e32-a702-af61aa543bc1"),
+		APIri:            testrig.URLMustParse("http://example.org/users/Some_User/statuses/afaba698-5740-4e32-a702-af61aa543bc1"),
 	})
 	suite.NoError(err)
 
 	// status should now be in the database, attributed to remote_account_2
-	s, err := suite.db.GetStatusByURI(context.Background(), "http://example.org/users/some_user/statuses/afaba698-5740-4e32-a702-af61aa543bc1")
+	s, err := suite.db.GetStatusByURI(context.Background(), "http://example.org/users/Some_User/statuses/afaba698-5740-4e32-a702-af61aa543bc1")
 	suite.NoError(err)
 	suite.Equal(statusCreator.URI, s.AccountURI)
 }

internal/typeutils/internaltofrontend_test.go

@@ -138,7 +138,7 @@ func (suite *InternalToFrontendTestSuite) TestInstanceToFrontendWithAdminAccount
 	b, err := json.Marshal(apiInstance)
 	suite.NoError(err)
 
-	suite.Equal(`{"uri":"https://example.org","title":"example instance","description":"a much longer description","short_description":"a little description","email":"someone@example.org","version":"software-from-hell 0.666","registrations":false,"approval_required":false,"invites_enabled":false,"thumbnail":"","contact_account":{"id":"01FHMQX3GAABWSM0S2VZEC2SWC","username":"some_user","acct":"some_user@example.org","display_name":"some user","locked":true,"bot":false,"created_at":"2020-08-10T12:13:28.000Z","note":"i'm a real son of a gun","url":"http://example.org/@some_user","avatar":"","avatar_static":"","header":"http://localhost:8080/assets/default_header.png","header_static":"http://localhost:8080/assets/default_header.png","followers_count":0,"following_count":0,"statuses_count":0,"last_status_at":null,"emojis":[],"fields":[]},"max_toot_chars":0}`, string(b))
+	suite.Equal(`{"uri":"https://example.org","title":"example instance","description":"a much longer description","short_description":"a little description","email":"someone@example.org","version":"software-from-hell 0.666","registrations":false,"approval_required":false,"invites_enabled":false,"thumbnail":"","contact_account":{"id":"01FHMQX3GAABWSM0S2VZEC2SWC","username":"Some_User","acct":"Some_User@example.org","display_name":"some user","locked":true,"bot":false,"created_at":"2020-08-10T12:13:28.000Z","note":"i'm a real son of a gun","url":"http://example.org/@Some_User","avatar":"","avatar_static":"","header":"http://localhost:8080/assets/default_header.png","header_static":"http://localhost:8080/assets/default_header.png","followers_count":0,"following_count":0,"statuses_count":0,"last_status_at":null,"emojis":[],"fields":[]},"max_toot_chars":0}`, string(b))
 }
 
 func (suite *InternalToFrontendTestSuite) TestEmojiToFrontend() {

testrig/testmodels.go

@@ -539,7 +539,7 @@ func NewTestAccounts() map[string]*gtsmodel.Account {
 		},
 		"remote_account_2": {
 			ID:                    "01FHMQX3GAABWSM0S2VZEC2SWC",
-			Username:              "some_user",
+			Username:              "Some_User",
 			Domain:                "example.org",
 			DisplayName:           "some user",
 			Fields:                []gtsmodel.Field{},
@@ -553,20 +553,20 @@ func NewTestAccounts() map[string]*gtsmodel.Account {
 			Discoverable:          TrueBool(),
 			Sensitive:             FalseBool(),
 			Language:              "en",
-			URI:                   "http://example.org/users/some_user",
+			URI:                   "http://example.org/users/Some_User",
-			URL:                   "http://example.org/@some_user",
+			URL:                   "http://example.org/@Some_User",
 			LastWebfingeredAt:     time.Time{},
-			InboxURI:              "http://example.org/users/some_user/inbox",
+			InboxURI:              "http://example.org/users/Some_User/inbox",
 			SharedInboxURI:        StringPtr(""),
-			OutboxURI:             "http://example.org/users/some_user/outbox",
+			OutboxURI:             "http://example.org/users/Some_User/outbox",
-			FollowersURI:          "http://example.org/users/some_user/followers",
+			FollowersURI:          "http://example.org/users/Some_User/followers",
-			FollowingURI:          "http://example.org/users/some_user/following",
+			FollowingURI:          "http://example.org/users/Some_User/following",
-			FeaturedCollectionURI: "http://example.org/users/some_user/collections/featured",
+			FeaturedCollectionURI: "http://example.org/users/Some_User/collections/featured",
 			ActorType:             ap.ActorPerson,
 			AlsoKnownAs:           "",
 			PrivateKey:            &rsa.PrivateKey{},
 			PublicKey:             &rsa.PublicKey{},
-			PublicKeyURI:          "http://example.org/users/some_user#main-key",
+			PublicKeyURI:          "http://example.org/users/Some_User#main-key",
 			SensitizedAt:          time.Time{},
 			SilencedAt:            time.Time{},
 			SuspendedAt:           time.Time{},
@@ -1853,27 +1853,27 @@ func NewTestActivities(accounts map[string]*gtsmodel.Account) map[string]Activit
 	createReplyToTurtleForTurtleSig, createReplyToTurtleForTurtleDigest, createReplyToTurtleForTurtleDate := GetSignatureForActivity(createReplyToTurtle, accounts["remote_account_1"].PublicKeyURI, accounts["remote_account_1"].PrivateKey, URLMustParse(accounts["local_account_2"].InboxURI))
 
 	forwardedMessage := NewAPNote(
-		URLMustParse("http://example.org/users/some_user/statuses/afaba698-5740-4e32-a702-af61aa543bc1"),
+		URLMustParse("http://example.org/users/Some_User/statuses/afaba698-5740-4e32-a702-af61aa543bc1"),
-		URLMustParse("http://example.org/@some_user/afaba698-5740-4e32-a702-af61aa543bc1"),
+		URLMustParse("http://example.org/@Some_User/afaba698-5740-4e32-a702-af61aa543bc1"),
 		TimeMustParse("2022-07-13T12:13:12+02:00"),
 		"this is a public status, please forward it!",
 		"",
-		URLMustParse("http://example.org/users/some_user"),
+		URLMustParse("http://example.org/users/Some_User"),
 		[]*url.URL{URLMustParse(pub.PublicActivityPubIRI)},
 		nil,
 		false,
 		[]vocab.ActivityStreamsMention{},
 		[]vocab.ActivityStreamsImage{
 			newAPImage(
-				URLMustParse("http://example.org/users/some_user/statuses/afaba698-5740-4e32-a702-af61aa543bc1/attachment1.jpeg"),
+				URLMustParse("http://example.org/users/Some_User/statuses/afaba698-5740-4e32-a702-af61aa543bc1/attachment1.jpeg"),
 				"image/jpeg",
 				"trent reznor looking handsome as balls",
 				"LEDara58O=t5EMSOENEN9]}?aK%0"),
 		},
 	)
 	createForwardedMessage := WrapAPNoteInCreate(
-		URLMustParse("http://example.org/users/some_user/statuses/afaba698-5740-4e32-a702-af61aa543bc1/activity"),
+		URLMustParse("http://example.org/users/Some_User/statuses/afaba698-5740-4e32-a702-af61aa543bc1/activity"),
-		URLMustParse("http://example.org/users/some_user"),
+		URLMustParse("http://example.org/users/Some_User"),
 		TimeMustParse("2022-07-13T12:13:12+02:00"),
 		forwardedMessage)
 	createForwardedMessageSig, createForwardedMessageDigest, createForwardedMessageDate := GetSignatureForActivity(createForwardedMessage, accounts["remote_account_1"].PublicKeyURI, accounts["remote_account_1"].PrivateKey, URLMustParse(accounts["local_account_1"].InboxURI))
@@ -2172,20 +2172,20 @@ func NewTestFediAttachments(relativePath string) map[string]RemoteAttachmentFile
 
 func NewTestFediStatuses() map[string]vocab.ActivityStreamsNote {
 	return map[string]vocab.ActivityStreamsNote{
-		"http://example.org/users/some_user/statuses/afaba698-5740-4e32-a702-af61aa543bc1": NewAPNote(
+		"http://example.org/users/Some_User/statuses/afaba698-5740-4e32-a702-af61aa543bc1": NewAPNote(
-			URLMustParse("http://example.org/users/some_user/statuses/afaba698-5740-4e32-a702-af61aa543bc1"),
+			URLMustParse("http://example.org/users/Some_User/statuses/afaba698-5740-4e32-a702-af61aa543bc1"),
-			URLMustParse("http://example.org/@some_user/afaba698-5740-4e32-a702-af61aa543bc1"),
+			URLMustParse("http://example.org/@Some_User/afaba698-5740-4e32-a702-af61aa543bc1"),
 			TimeMustParse("2022-07-13T12:13:12+02:00"),
 			"this is a public status, please forward it!",
 			"",
-			URLMustParse("http://example.org/users/some_user"),
+			URLMustParse("http://example.org/users/Some_User"),
 			[]*url.URL{URLMustParse(pub.PublicActivityPubIRI)},
 			nil,
 			false,
 			[]vocab.ActivityStreamsMention{},
 			[]vocab.ActivityStreamsImage{
 				newAPImage(
-					URLMustParse("http://example.org/users/some_user/statuses/afaba698-5740-4e32-a702-af61aa543bc1/attachment1.jpeg"),
+					URLMustParse("http://example.org/users/Some_User/statuses/afaba698-5740-4e32-a702-af61aa543bc1/attachment1.jpeg"),
 					"image/jpeg",
 					"trent reznor looking handsome as balls",
 					"LEDara58O=t5EMSOENEN9]}?aK%0"),

testrig/transportcontroller.go

@@ -282,14 +282,14 @@ func WebfingerResponse(req *http.Request) (responseCode int, responseBytes []byt
 				},
 			},
 		}
-	case "https://example.org/.well-known/webfinger?resource=acct:some_user@example.org":
+	case "https://example.org/.well-known/webfinger?resource=acct:Some_User@example.org":
 		wfr = &apimodel.WellKnownResponse{
-			Subject: "acct:some_user@example.org",
+			Subject: "acct:Some_User@example.org",
 			Links: []apimodel.Link{
 				{
 					Rel:  "self",
 					Type: applicationActivityJSON,
-					Href: "https://example.org/users/some_user",
+					Href: "https://example.org/users/Some_User",
 				},
 			},
 		}