Merge c8fb4c17f1 into 8a93300ac4

Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.20.4 to 1.20.5.
- [Release notes](https://github.com/prometheus/client_golang/releases)
- [Changelog](https://github.com/prometheus/client_golang/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prometheus/client_golang/compare/v1.20.4...v1.20.5)

---
updated-dependencies:
- dependency-name: github.com/prometheus/client_golang
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/admin/settings.md

@@ -167,3 +167,11 @@ Links to the set contact account and/or email address will appear on the footer
 The selected **contact user** must be an active (not suspended) admin and/or moderator on the instance.
 
 If you're on a single-user instance and you give admin privileges to your main account, you can just fill in your own username here; you don't need to make a separate admin account just for this.
+
+### Instance Custom CSS
+
+custom CSS allows you to further customize the way your instance looks when visited through a browser.
+
+This custom CSS will be applied to all pages of your instance. Users themes and CSS still take precedence over this customization.
+
+See the [Custom CSS](./custom_css.md) page for some tips on writing custom CSS for your instance.

docs/api/swagger.yaml

@@ -206,6 +206,13 @@ definitions:
                 example: A cute drawing of a smiling sloth.
                 type: string
                 x-go-name: AvatarDescription
+            avatar_media_id:
+                description: |-
+                    Database ID of the media attachment for this account's avatar image.
+                    Omitted if no avatar uploaded for this account (ie., default avatar).
+                example: 01JAJ3XCD66K3T99JZESCR137W
+                type: string
+                x-go-name: AvatarMediaID
             avatar_static:
                 description: |-
                     Web location of a static version of the account's avatar.
@@ -277,6 +284,13 @@ definitions:
                 example: A sunlit field with purple flowers.
                 type: string
                 x-go-name: HeaderDescription
+            header_media_id:
+                description: |-
+                    Database ID of the media attachment for this account's header image.
+                    Omitted if no header uploaded for this account (ie., default header).
+                example: 01JAJ3XCD66K3T99JZESCR137W
+                type: string
+                x-go-name: HeaderMediaID
             header_static:
                 description: |-
                     Web location of a static version of the account's header.
@@ -1550,6 +1564,10 @@ definitions:
                 $ref: '#/definitions/instanceV1Configuration'
             contact_account:
                 $ref: '#/definitions/account'
+            custom_css:
+                description: Custom CSS for the instance.
+                type: string
+                x-go-name: CustomCSS
             debug:
                 description: Whether or not instance is running in DEBUG mode. Omitted if false.
                 type: boolean
@@ -1730,6 +1748,10 @@ definitions:
                 $ref: '#/definitions/instanceV2Configuration'
             contact:
                 $ref: '#/definitions/instanceV2Contact'
+            custom_css:
+                description: Instance Custom Css
+                type: string
+                x-go-name: CustomCSS
             debug:
                 description: Whether or not instance is running in DEBUG mode. Omitted if false.
                 type: boolean
@@ -2211,6 +2233,13 @@ definitions:
                 example: A cute drawing of a smiling sloth.
                 type: string
                 x-go-name: AvatarDescription
+            avatar_media_id:
+                description: |-
+                    Database ID of the media attachment for this account's avatar image.
+                    Omitted if no avatar uploaded for this account (ie., default avatar).
+                example: 01JAJ3XCD66K3T99JZESCR137W
+                type: string
+                x-go-name: AvatarMediaID
             avatar_static:
                 description: |-
                     Web location of a static version of the account's avatar.
@@ -2282,6 +2311,13 @@ definitions:
                 example: A sunlit field with purple flowers.
                 type: string
                 x-go-name: HeaderDescription
+            header_media_id:
+                description: |-
+                    Database ID of the media attachment for this account's header image.
+                    Omitted if no header uploaded for this account (ie., default header).
+                example: 01JAJ3XCD66K3T99JZESCR137W
+                type: string
+                x-go-name: HeaderMediaID
             header_static:
                 description: |-
                     Web location of a static version of the account's header.

go.mod

@@ -46,14 +46,14 @@ require (
 	github.com/mitchellh/mapstructure v1.5.0
 	github.com/ncruces/go-sqlite3 v0.19.0
 	github.com/oklog/ulid v1.3.1
-	github.com/prometheus/client_golang v1.20.4
+	github.com/prometheus/client_golang v1.20.5
 	github.com/spf13/cobra v1.8.1
 	github.com/spf13/viper v1.19.0
 	github.com/stretchr/testify v1.9.0
 	github.com/superseriousbusiness/activity v1.9.0-gts
 	github.com/superseriousbusiness/httpsig v1.2.0-SSB
 	github.com/superseriousbusiness/oauth2/v4 v4.3.2-SSB.0.20230227143000-f4900831d6c8
-	github.com/tdewolff/minify/v2 v2.20.37
+	github.com/tdewolff/minify/v2 v2.21.0
 	github.com/technologize/otel-go-contrib v1.1.1
 	github.com/tetratelabs/wazero v1.8.1
 	github.com/tomnomnom/linkheader v0.0.0-20180905144013-02ca5825eb80
@@ -63,7 +63,7 @@ require (
 	github.com/uptrace/bun/dialect/sqlitedialect v1.2.1
 	github.com/uptrace/bun/extra/bunotel v1.2.1
 	github.com/wagslane/go-password-validator v0.3.0
-	github.com/yuin/goldmark v1.7.6
+	github.com/yuin/goldmark v1.7.8
 	go.opentelemetry.io/otel v1.29.0
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.29.0
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.29.0
@@ -197,7 +197,7 @@ require (
 	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/superseriousbusiness/go-jpeg-image-structure/v2 v2.0.0-20220321154430-d89a106fdabe // indirect
 	github.com/superseriousbusiness/go-png-image-structure/v2 v2.0.1-SSB // indirect
-	github.com/tdewolff/parse/v2 v2.7.15 // indirect
+	github.com/tdewolff/parse/v2 v2.7.17 // indirect
 	github.com/tmthrgd/go-hex v0.0.0-20190904060850-447a3041c3bc // indirect
 	github.com/toqueteos/webbrowser v1.2.0 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect

go.sum

@@ -462,8 +462,8 @@ github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRI
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prashantv/gostub v1.1.0 h1:BTyx3RfQjRHnUWaGF9oQos79AlQ5k8WNktv7VGvVH4g=
 github.com/prashantv/gostub v1.1.0/go.mod h1:A5zLQHz7ieHGG7is6LLXLz7I8+3LZzsrV0P1IAHhP5U=
-github.com/prometheus/client_golang v1.20.4 h1:Tgh3Yr67PaOv/uTqloMsCEdeuFTatm5zIq5+qNN23vI=
+github.com/prometheus/client_golang v1.20.5 h1:cxppBPuYhUnsO6yo/aoRol4L7q7UFfdm+bR9r+8l63Y=
-github.com/prometheus/client_golang v1.20.4/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
+github.com/prometheus/client_golang v1.20.5/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.6.1 h1:ZKSh/rekM+n3CeS952MLRAdFwIKqeY8b62p8ais2e9E=
 github.com/prometheus/client_model v0.6.1/go.mod h1:OrxVMOVHjw3lKMa8+x6HeMGkHMQyHDk9E3jmP2AmGiY=
@@ -539,10 +539,10 @@ github.com/superseriousbusiness/httpsig v1.2.0-SSB h1:BinBGKbf2LSuVT5+MuH0XynHN9
 github.com/superseriousbusiness/httpsig v1.2.0-SSB/go.mod h1:+rxfATjFaDoDIVaJOTSP0gj6UrbicaYPEptvCLC9F28=
 github.com/superseriousbusiness/oauth2/v4 v4.3.2-SSB.0.20230227143000-f4900831d6c8 h1:nTIhuP157oOFcscuoK1kCme1xTeGIzztSw70lX9NrDQ=
 github.com/superseriousbusiness/oauth2/v4 v4.3.2-SSB.0.20230227143000-f4900831d6c8/go.mod h1:uYC/W92oVRJ49Vh1GcvTqpeFqHi+Ovrl2sMllQWRAEo=
-github.com/tdewolff/minify/v2 v2.20.37 h1:Q97cx4STXCh1dlWDlNHZniE8BJ2EBL0+2b0n92BJQhw=
+github.com/tdewolff/minify/v2 v2.21.0 h1:nAPP1UVx0aK1xsQh/JiG3xyEnnqWw+agPstn+V6Pkto=
-github.com/tdewolff/minify/v2 v2.20.37/go.mod h1:L1VYef/jwKw6Wwyk5A+T0mBjjn3mMPgmjjA688RNsxU=
+github.com/tdewolff/minify/v2 v2.21.0/go.mod h1:hGcthJ6Vj51NG+9QRIfN/DpWj5loHnY3bfhThzWWq08=
-github.com/tdewolff/parse/v2 v2.7.15 h1:hysDXtdGZIRF5UZXwpfn3ZWRbm+ru4l53/ajBRGpCTw=
+github.com/tdewolff/parse/v2 v2.7.17 h1:uC10p6DaQQORDy72eaIyD+AvAkaIUOouQ0nWp4uD0D0=
-github.com/tdewolff/parse/v2 v2.7.15/go.mod h1:3FbJWZp3XT9OWVN3Hmfp0p/a08v4h8J9W1aghka0soA=
+github.com/tdewolff/parse/v2 v2.7.17/go.mod h1:3FbJWZp3XT9OWVN3Hmfp0p/a08v4h8J9W1aghka0soA=
 github.com/tdewolff/test v1.0.11-0.20231101010635-f1265d231d52/go.mod h1:6DAvZliBAAnD7rhVgwaM7DE5/d9NMOAJ09SqYqeK4QE=
 github.com/tdewolff/test v1.0.11-0.20240106005702-7de5f7df4739 h1:IkjBCtQOOjIn03u/dMQK9g+Iw9ewps4mCl1nB8Sscbo=
 github.com/tdewolff/test v1.0.11-0.20240106005702-7de5f7df4739/go.mod h1:XPuWBzvdUzhCuxWO1ojpXsyzsA5bFoS3tO/Q3kFuTG8=
@@ -621,8 +621,8 @@ github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-github.com/yuin/goldmark v1.7.6 h1:cZgJxVh5mL5cu8KOnwxvFJy5TFB0BHUskZZyq7TYbDg=
+github.com/yuin/goldmark v1.7.8 h1:iERMLn0/QJeHFhxSt3p6PeN9mGnvIKSpG9YYorDMnic=
-github.com/yuin/goldmark v1.7.6/go.mod h1:uzxRWxtg69N339t3louHJ7+O03ezfj6PlliRlaOzY1E=
+github.com/yuin/goldmark v1.7.8/go.mod h1:uzxRWxtg69N339t3louHJ7+O03ezfj6PlliRlaOzY1E=
 gitlab.com/NyaaaWhatsUpDoc/sqlite v1.33.1-concurrency-workaround h1:pFMJnlc1PuH+jcVz4vz53vcpnoZG+NqFBr3qikDmEB4=
 gitlab.com/NyaaaWhatsUpDoc/sqlite v1.33.1-concurrency-workaround/go.mod h1:pXV2xHxhzXZsgT/RtTFAPY6JJDEvOTcTdwADQCCWD4k=
 go.mongodb.org/mongo-driver v1.14.0 h1:P98w8egYRjYe3XDjxhYJagTokP/H6HzlsnojRgZRd80=

internal/api/client/admin/accountsgetv2_test.go

@@ -96,6 +96,7 @@ func (suite *AccountsGetTestSuite) TestAccountsGetFromTop() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 8,
@@ -154,6 +155,7 @@ func (suite *AccountsGetTestSuite) TestAccountsGetFromTop() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 4,
@@ -208,6 +210,7 @@ func (suite *AccountsGetTestSuite) TestAccountsGetFromTop() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 0,
@@ -252,9 +255,11 @@ func (suite *AccountsGetTestSuite) TestAccountsGetFromTop() {
       "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
       "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
       "avatar_description": "a green goblin looking nasty",
+      "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
       "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
       "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
       "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+      "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
       "followers_count": 2,
       "following_count": 2,
       "statuses_count": 8,
@@ -302,6 +307,7 @@ func (suite *AccountsGetTestSuite) TestAccountsGetFromTop() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 0,
@@ -348,6 +354,7 @@ func (suite *AccountsGetTestSuite) TestAccountsGetFromTop() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 1,
@@ -393,6 +400,7 @@ func (suite *AccountsGetTestSuite) TestAccountsGetFromTop() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 3,
@@ -439,6 +447,7 @@ func (suite *AccountsGetTestSuite) TestAccountsGetFromTop() {
       "header": "http://localhost:8080/fileserver/062G5WYKY35KKD12EMSM3F8PJ8/header/original/01PFPMWK2FF0D9WMHEJHR07C3R.jpg",
       "header_static": "http://localhost:8080/fileserver/062G5WYKY35KKD12EMSM3F8PJ8/header/small/01PFPMWK2FF0D9WMHEJHR07C3R.webp",
       "header_description": "tweet from thoughts of dog: i drank. all the water. in my bowl. earlier. but just now. i returned. to the same bowl. and it was. full again.. the bowl. is haunted",
+      "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3R",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 0,
@@ -484,6 +493,7 @@ func (suite *AccountsGetTestSuite) TestAccountsGetFromTop() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 0,
@@ -568,6 +578,7 @@ func (suite *AccountsGetTestSuite) TestAccountsMinID() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 0,

internal/api/client/admin/reportsget_test.go

@@ -183,6 +183,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetAll() {
         "avatar_static": "",
         "header": "http://localhost:8080/assets/default_header.webp",
         "header_static": "http://localhost:8080/assets/default_header.webp",
+        "header_description": "Flat gray background (default header).",
         "followers_count": 0,
         "following_count": 0,
         "statuses_count": 3,
@@ -228,6 +229,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetAll() {
         "avatar_static": "",
         "header": "http://localhost:8080/assets/default_header.webp",
         "header_static": "http://localhost:8080/assets/default_header.webp",
+        "header_description": "Flat gray background (default header).",
         "followers_count": 1,
         "following_count": 1,
         "statuses_count": 8,
@@ -286,6 +288,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetAll() {
         "avatar_static": "",
         "header": "http://localhost:8080/assets/default_header.webp",
         "header_static": "http://localhost:8080/assets/default_header.webp",
+        "header_description": "Flat gray background (default header).",
         "followers_count": 1,
         "following_count": 1,
         "statuses_count": 4,
@@ -340,6 +343,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetAll() {
         "avatar_static": "",
         "header": "http://localhost:8080/assets/default_header.webp",
         "header_static": "http://localhost:8080/assets/default_header.webp",
+        "header_description": "Flat gray background (default header).",
         "followers_count": 1,
         "following_count": 1,
         "statuses_count": 4,
@@ -407,6 +411,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetAll() {
         "avatar_static": "",
         "header": "http://localhost:8080/assets/default_header.webp",
         "header_static": "http://localhost:8080/assets/default_header.webp",
+        "header_description": "Flat gray background (default header).",
         "followers_count": 1,
         "following_count": 1,
         "statuses_count": 8,
@@ -465,6 +470,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetAll() {
         "avatar_static": "",
         "header": "http://localhost:8080/assets/default_header.webp",
         "header_static": "http://localhost:8080/assets/default_header.webp",
+        "header_description": "Flat gray background (default header).",
         "followers_count": 0,
         "following_count": 0,
         "statuses_count": 3,
@@ -512,6 +518,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetAll() {
           "avatar_static": "",
           "header": "http://localhost:8080/assets/default_header.webp",
           "header_static": "http://localhost:8080/assets/default_header.webp",
+          "header_description": "Flat gray background (default header).",
           "followers_count": 0,
           "following_count": 0,
           "statuses_count": 3,
@@ -657,6 +664,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetCreatedByAccount() {
         "avatar_static": "",
         "header": "http://localhost:8080/assets/default_header.webp",
         "header_static": "http://localhost:8080/assets/default_header.webp",
+        "header_description": "Flat gray background (default header).",
         "followers_count": 1,
         "following_count": 1,
         "statuses_count": 8,
@@ -715,6 +723,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetCreatedByAccount() {
         "avatar_static": "",
         "header": "http://localhost:8080/assets/default_header.webp",
         "header_static": "http://localhost:8080/assets/default_header.webp",
+        "header_description": "Flat gray background (default header).",
         "followers_count": 0,
         "following_count": 0,
         "statuses_count": 3,
@@ -762,6 +771,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetCreatedByAccount() {
           "avatar_static": "",
           "header": "http://localhost:8080/assets/default_header.webp",
           "header_static": "http://localhost:8080/assets/default_header.webp",
+          "header_description": "Flat gray background (default header).",
           "followers_count": 0,
           "following_count": 0,
           "statuses_count": 3,
@@ -907,6 +917,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetTargetAccount() {
         "avatar_static": "",
         "header": "http://localhost:8080/assets/default_header.webp",
         "header_static": "http://localhost:8080/assets/default_header.webp",
+        "header_description": "Flat gray background (default header).",
         "followers_count": 1,
         "following_count": 1,
         "statuses_count": 8,
@@ -965,6 +976,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetTargetAccount() {
         "avatar_static": "",
         "header": "http://localhost:8080/assets/default_header.webp",
         "header_static": "http://localhost:8080/assets/default_header.webp",
+        "header_description": "Flat gray background (default header).",
         "followers_count": 0,
         "following_count": 0,
         "statuses_count": 3,
@@ -1012,6 +1024,7 @@ func (suite *ReportsGetTestSuite) TestReportsGetTargetAccount() {
           "avatar_static": "",
           "header": "http://localhost:8080/assets/default_header.webp",
           "header_static": "http://localhost:8080/assets/default_header.webp",
+          "header_description": "Flat gray background (default header).",
           "followers_count": 0,
           "following_count": 0,
           "statuses_count": 3,

internal/api/client/followrequests/get_test.go

@@ -97,6 +97,7 @@ func (suite *GetTestSuite) TestGet() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 0,
     "following_count": 0,
     "statuses_count": 1,

internal/api/client/instance/instancepatch.go

@@ -175,6 +175,7 @@ func validateInstanceUpdate(form *apimodel.InstanceSettingsUpdateRequest) error
 		form.ContactEmail == nil &&
 		form.ShortDescription == nil &&
 		form.Description == nil &&
+		form.CustomCSS == nil &&
 		form.Terms == nil &&
 		form.Avatar == nil &&
 		form.AvatarDescription == nil &&

internal/api/client/instance/instancepatch_test.go

@@ -174,6 +174,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch1() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -314,6 +315,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch2() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -454,6 +456,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch3() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -645,6 +648,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch6() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -811,6 +815,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch8() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -988,6 +993,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch9() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,

internal/api/client/mutes/mutesget_test.go

@@ -148,7 +148,7 @@ func (suite *MutesTestSuite) TestIndefinitelyMutedAccountSerializesMuteExpiratio
 
 	// Fetch all muted accounts for the logged-in account.
 	// The expected body contains `"mute_expires_at":null`.
-	_, err = suite.getMutedAccounts(http.StatusOK, `[{"id":"01F8MH5ZK5VRH73AKHQM6Y9VNX","username":"foss_satan","acct":"foss_satan@fossbros-anonymous.io","display_name":"big gerald","locked":false,"discoverable":true,"bot":false,"created_at":"2021-09-26T10:52:36.000Z","note":"i post about like, i dunno, stuff, or whatever!!!!","url":"http://fossbros-anonymous.io/@foss_satan","avatar":"","avatar_static":"","header":"http://localhost:8080/assets/default_header.webp","header_static":"http://localhost:8080/assets/default_header.webp","followers_count":0,"following_count":0,"statuses_count":3,"last_status_at":"2021-09-11","emojis":[],"fields":[],"mute_expires_at":null}]`)
+	_, err = suite.getMutedAccounts(http.StatusOK, `[{"id":"01F8MH5ZK5VRH73AKHQM6Y9VNX","username":"foss_satan","acct":"foss_satan@fossbros-anonymous.io","display_name":"big gerald","locked":false,"discoverable":true,"bot":false,"created_at":"2021-09-26T10:52:36.000Z","note":"i post about like, i dunno, stuff, or whatever!!!!","url":"http://fossbros-anonymous.io/@foss_satan","avatar":"","avatar_static":"","header":"http://localhost:8080/assets/default_header.webp","header_static":"http://localhost:8080/assets/default_header.webp","header_description":"Flat gray background (default header).","followers_count":0,"following_count":0,"statuses_count":3,"last_status_at":"2021-09-11","emojis":[],"fields":[],"mute_expires_at":null}]`)
 	if err != nil {
 		suite.FailNow(err.Error())
 	}

internal/api/client/reports/reportget_test.go

@@ -127,6 +127,7 @@ func (suite *ReportGetTestSuite) TestGetReport1() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 0,
     "following_count": 0,
     "statuses_count": 3,

internal/api/client/reports/reportsget_test.go

@@ -153,6 +153,7 @@ func (suite *ReportsGetTestSuite) TestGetReports() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 3,
@@ -243,6 +244,7 @@ func (suite *ReportsGetTestSuite) TestGetReports4() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 3,
@@ -317,6 +319,7 @@ func (suite *ReportsGetTestSuite) TestGetReports6() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 3,
@@ -375,6 +378,7 @@ func (suite *ReportsGetTestSuite) TestGetReports7() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 3,

internal/api/client/statuses/statushistory_test.go

@@ -109,9 +109,11 @@ func (suite *StatusHistoryTestSuite) TestGetHistory() {
       "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
       "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
       "avatar_description": "a green goblin looking nasty",
+      "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
       "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
       "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
       "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+      "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
       "followers_count": 2,
       "following_count": 2,
       "statuses_count": 8,

internal/api/client/statuses/statusmute_test.go

@@ -127,9 +127,11 @@ func (suite *StatusMuteTestSuite) TestMuteUnmuteStatus() {
     "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
     "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
     "avatar_description": "a green goblin looking nasty",
+    "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
     "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
     "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
     "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+    "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
     "followers_count": 2,
     "following_count": 2,
     "statuses_count": 8,
@@ -212,9 +214,11 @@ func (suite *StatusMuteTestSuite) TestMuteUnmuteStatus() {
     "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
     "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
     "avatar_description": "a green goblin looking nasty",
+    "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
     "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
     "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
     "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+    "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
     "followers_count": 2,
     "following_count": 2,
     "statuses_count": 8,

internal/api/model/account.go

@@ -68,6 +68,10 @@ type Account struct {
 	// Description of this account's avatar, for alt text.
 	// example: A cute drawing of a smiling sloth.
 	AvatarDescription string `json:"avatar_description,omitempty"`
+	// Database ID of the media attachment for this account's avatar image.
+	// Omitted if no avatar uploaded for this account (ie., default avatar).
+	// example: 01JAJ3XCD66K3T99JZESCR137W
+	AvatarMediaID string `json:"avatar_media_id,omitempty"`
 	// Web location of the account's header image.
 	// example: https://example.org/media/some_user/header/original/header.jpeg
 	Header string `json:"header"`
@@ -78,6 +82,10 @@ type Account struct {
 	// Description of this account's header, for alt text.
 	// example: A sunlit field with purple flowers.
 	HeaderDescription string `json:"header_description,omitempty"`
+	// Database ID of the media attachment for this account's header image.
+	// Omitted if no header uploaded for this account (ie., default header).
+	// example: 01JAJ3XCD66K3T99JZESCR137W
+	HeaderMediaID string `json:"header_media_id,omitempty"`
 	// Number of accounts following this account, according to our instance.
 	FollowersCount int `json:"followers_count"`
 	// Number of account's followed by this account, according to our instance.

internal/api/model/instance.go

@@ -33,6 +33,8 @@ type InstanceSettingsUpdateRequest struct {
 	ShortDescription *string `form:"short_description" json:"short_description" xml:"short_description"`
 	// Longer description of the instance, max 5,000 chars. HTML formatting accepted.
 	Description *string `form:"description" json:"description" xml:"description"`
+	// Custom CSS for the instance.
+	CustomCSS *string `form:"custom_css" json:"custom_css,omitempty" xml:"custom_css"`
 	// Terms and conditions of the instance, max 5,000 chars. HTML formatting accepted.
 	Terms *string `form:"terms" json:"terms" xml:"terms"`
 	// Image to use as the instance thumbnail.

internal/api/model/instancev1.go

@@ -38,6 +38,8 @@ type InstanceV1 struct {
 	//
 	// This should be displayed on the 'about' page for an instance.
 	Description string `json:"description"`
+	// Custom CSS for the instance.
+	CustomCSS string `json:"custom_css,omitempty"`
 	// Raw (unparsed) version of description.
 	DescriptionText string `json:"description_text,omitempty"`
 	// A shorter description of the instance.

internal/api/model/instancev2.go

@@ -53,6 +53,8 @@ type InstanceV2 struct {
 	Description string `json:"description"`
 	// Raw (unparsed) version of description.
 	DescriptionText string `json:"description_text,omitempty"`
+	// Instance Custom Css
+	CustomCSS string `json:"custom_css,omitempty"`
 	// Basic anonymous usage data for this instance.
 	Usage InstanceV2Usage `json:"usage"`
 	// An image used to represent this instance.

internal/db/bundb/migrations/20240924222938_add_instance_custom_css.go

@@ -0,0 +1,44 @@
+// GoToSocial
+// Copyright (C) GoToSocial Authors admin@gotosocial.org
+// SPDX-License-Identifier: AGPL-3.0-or-later
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package migrations
+
+import (
+	"context"
+	"strings"
+
+	"github.com/uptrace/bun"
+)
+
+func init() {
+	up := func(ctx context.Context, db *bun.DB) error {
+		_, err := db.ExecContext(ctx, "ALTER TABLE ? ADD COLUMN ? TEXT", bun.Ident("instances"), bun.Ident("custom_css"))
+		if err != nil && !(strings.Contains(err.Error(), "already exists") || strings.Contains(err.Error(), "duplicate column name") || strings.Contains(err.Error(), "SQLSTATE 42701")) {
+			return err
+		}
+		return nil
+	}
+
+	down := func(ctx context.Context, db *bun.DB) error {
+		_, err := db.ExecContext(ctx, "ALTER TABLE ? DROP COLUMN ?", bun.Ident("instances"), bun.Ident("custom_css"))
+		return err
+	}
+
+	if err := Migrations.Register(up, down); err != nil {
+		panic(err)
+	}
+}

internal/gtsmodel/instance.go

@@ -34,6 +34,7 @@ type Instance struct {
 	ShortDescriptionText   string       `bun:""`                                                            // Raw text version of short description (before parsing).
 	Description            string       `bun:""`                                                            // Longer description of this instance.
 	DescriptionText        string       `bun:""`                                                            // Raw text version of long description (before parsing).
+	CustomCSS              string       `bun:",nullzero"`                                                   // Custom CSS for the instance.
 	Terms                  string       `bun:""`                                                            // Terms and conditions of this instance.
 	TermsText              string       `bun:""`                                                            // Raw text version of terms (before parsing).
 	ContactEmail           string       `bun:""`                                                            // Contact email address for this instance

internal/processing/instance.go

@@ -227,6 +227,17 @@ func (p *Processor) InstancePatch(ctx context.Context, form *apimodel.InstanceSe
 		columns = append(columns, []string{"description", "description_text"}...)
 	}
 
+	// validate & update site custom css if it's set on the form
+	if form.CustomCSS != nil {
+		customCSS := *form.CustomCSS
+		if err := validate.InstanceCustomCSS(customCSS); err != nil {
+			return nil, gtserror.NewErrorBadRequest(err, err.Error())
+		}
+
+		instance.CustomCSS = text.SanitizeToPlaintext(customCSS)
+		columns = append(columns, []string{"custom_css"}...)
+	}
+
 	// Validate & update site
 	// terms if set on the form.
 	if form.Terms != nil {

internal/processing/stream/notification_test.go

@@ -76,6 +76,7 @@ func (suite *NotificationTestSuite) TestStreamNotification() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 0,
     "following_count": 0,
     "statuses_count": 3,

internal/processing/stream/statusupdate_test.go

@@ -87,6 +87,7 @@ func (suite *StatusUpdateTestSuite) TestStreamNotification() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 0,
     "following_count": 0,
     "statuses_count": 3,

internal/typeutils/defaulticons.go

@@ -117,6 +117,9 @@ func (c *Converter) ensureAvatar(account *apimodel.Account) {
 
 	account.Avatar = avatar
 	account.AvatarStatic = avatar
+
+	const defaultAviDesc = "Grayed-out line drawing of a cute sloth (default avatar)."
+	account.AvatarDescription = defaultAviDesc
 }
 
 // ensureHeader ensures that the given account has a value set
@@ -134,4 +137,7 @@ func (c *Converter) ensureHeader(account *apimodel.Account) {
 	h := config.GetProtocol() + "://" + config.GetHost() + defaultHeaderPath
 	account.Header = h
 	account.HeaderStatic = h
+
+	const defaultHeaderDesc = "Flat gray background (default header)."
+	account.HeaderDescription = defaultHeaderDesc
 }

internal/typeutils/internaltofrontend.go

@@ -270,21 +270,25 @@ func (c *Converter) accountToAPIAccountPublic(ctx context.Context, a *gtsmodel.A
 	//   - Emojis
 
 	var (
+		aviID           string
 		aviURL          string
 		aviURLStatic    string
 		aviDesc         string
+		headerID        string
 		headerURL       string
 		headerURLStatic string
 		headerDesc      string
 	)
 
 	if a.AvatarMediaAttachment != nil {
+		aviID = a.AvatarMediaAttachmentID
 		aviURL = a.AvatarMediaAttachment.URL
 		aviURLStatic = a.AvatarMediaAttachment.Thumbnail.URL
 		aviDesc = a.AvatarMediaAttachment.Description
 	}
 
 	if a.HeaderMediaAttachment != nil {
+		headerID = a.HeaderMediaAttachmentID
 		headerURL = a.HeaderMediaAttachment.URL
 		headerURLStatic = a.HeaderMediaAttachment.Thumbnail.URL
 		headerDesc = a.HeaderMediaAttachment.Description
@@ -367,9 +371,11 @@ func (c *Converter) accountToAPIAccountPublic(ctx context.Context, a *gtsmodel.A
 		Avatar:            aviURL,
 		AvatarStatic:      aviURLStatic,
 		AvatarDescription: aviDesc,
+		AvatarMediaID:     aviID,
 		Header:            headerURL,
 		HeaderStatic:      headerURLStatic,
 		HeaderDescription: headerDesc,
+		HeaderMediaID:     headerID,
 		FollowersCount:    followersCount,
 		FollowingCount:    followingCount,
 		StatusesCount:     statusesCount,
@@ -1523,6 +1529,7 @@ func (c *Converter) InstanceToAPIV1Instance(ctx context.Context, i *gtsmodel.Ins
 		Title:                i.Title,
 		Description:          i.Description,
 		DescriptionText:      i.DescriptionText,
+		CustomCSS:            i.CustomCSS,
 		ShortDescription:     i.ShortDescription,
 		ShortDescriptionText: i.ShortDescriptionText,
 		Email:                i.ContactEmail,
@@ -1644,6 +1651,7 @@ func (c *Converter) InstanceToAPIV2Instance(ctx context.Context, i *gtsmodel.Ins
 		SourceURL:       instanceSourceURL,
 		Description:     i.Description,
 		DescriptionText: i.DescriptionText,
+		CustomCSS:       i.CustomCSS,
 		Usage:           apimodel.InstanceV2Usage{}, // todo: not implemented
 		Languages:       config.GetInstanceLanguages().TagStrs(),
 		Rules:           c.InstanceRulesToAPIRules(i.Rules),

internal/typeutils/internaltofrontend_test.go

@@ -60,9 +60,11 @@ func (suite *InternalToFrontendTestSuite) TestAccountToFrontend() {
   "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
   "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
   "avatar_description": "a green goblin looking nasty",
+  "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
   "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
   "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
   "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+  "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
   "followers_count": 2,
   "following_count": 2,
   "statuses_count": 8,
@@ -110,9 +112,11 @@ func (suite *InternalToFrontendTestSuite) TestAccountToFrontendAliasedAndMoved()
   "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
   "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
   "avatar_description": "a green goblin looking nasty",
+  "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
   "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
   "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
   "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+  "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
   "followers_count": 2,
   "following_count": 2,
   "statuses_count": 8,
@@ -155,6 +159,7 @@ func (suite *InternalToFrontendTestSuite) TestAccountToFrontendAliasedAndMoved()
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 8,
@@ -205,9 +210,11 @@ func (suite *InternalToFrontendTestSuite) TestAccountToFrontendWithEmojiStruct()
   "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
   "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
   "avatar_description": "a green goblin looking nasty",
+  "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
   "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
   "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
   "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+  "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
   "followers_count": 2,
   "following_count": 2,
   "statuses_count": 8,
@@ -252,9 +259,11 @@ func (suite *InternalToFrontendTestSuite) TestAccountToFrontendWithEmojiIDs() {
   "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
   "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
   "avatar_description": "a green goblin looking nasty",
+  "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
   "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
   "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
   "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+  "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
   "followers_count": 2,
   "following_count": 2,
   "statuses_count": 8,
@@ -295,9 +304,11 @@ func (suite *InternalToFrontendTestSuite) TestAccountToFrontendSensitive() {
   "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
   "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
   "avatar_description": "a green goblin looking nasty",
+  "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
   "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
   "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
   "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+  "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
   "followers_count": 2,
   "following_count": 2,
   "statuses_count": 8,
@@ -352,6 +363,7 @@ func (suite *InternalToFrontendTestSuite) TestAccountToFrontendPublicPunycode()
   "avatar_static": "",
   "header": "http://localhost:8080/assets/default_header.webp",
   "header_static": "http://localhost:8080/assets/default_header.webp",
+  "header_description": "Flat gray background (default header).",
   "followers_count": 0,
   "following_count": 0,
   "statuses_count": 0,
@@ -390,6 +402,7 @@ func (suite *InternalToFrontendTestSuite) TestLocalInstanceAccountToFrontendPubl
   "avatar_static": "",
   "header": "http://localhost:8080/assets/default_header.webp",
   "header_static": "http://localhost:8080/assets/default_header.webp",
+  "header_description": "Flat gray background (default header).",
   "followers_count": 0,
   "following_count": 0,
   "statuses_count": 0,
@@ -428,6 +441,7 @@ func (suite *InternalToFrontendTestSuite) TestLocalInstanceAccountToFrontendBloc
   "avatar_static": "",
   "header": "http://localhost:8080/assets/default_header.webp",
   "header_static": "http://localhost:8080/assets/default_header.webp",
+  "header_description": "Flat gray background (default header).",
   "followers_count": 0,
   "following_count": 0,
   "statuses_count": 0,
@@ -486,6 +500,7 @@ func (suite *InternalToFrontendTestSuite) TestStatusToFrontend() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -663,6 +678,7 @@ func (suite *InternalToFrontendTestSuite) TestWarnFilteredStatusToFrontend() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -847,9 +863,11 @@ func (suite *InternalToFrontendTestSuite) TestWarnFilteredBoostToFrontend() {
       "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
       "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
       "avatar_description": "a green goblin looking nasty",
+      "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
       "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
       "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
       "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+      "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
       "followers_count": 2,
       "following_count": 2,
       "statuses_count": 8,
@@ -977,6 +995,7 @@ func (suite *InternalToFrontendTestSuite) TestWarnFilteredBoostToFrontend() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -1232,6 +1251,7 @@ func (suite *InternalToFrontendTestSuite) TestStatusToFrontendUnknownAttachments
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 0,
     "following_count": 0,
     "statuses_count": 1,
@@ -1395,6 +1415,7 @@ func (suite *InternalToFrontendTestSuite) TestStatusToWebStatus() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 0,
     "following_count": 0,
     "statuses_count": 1,
@@ -1527,6 +1548,7 @@ func (suite *InternalToFrontendTestSuite) TestStatusToFrontendUnknownLanguage()
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -1668,9 +1690,11 @@ func (suite *InternalToFrontendTestSuite) TestStatusToFrontendPartialInteraction
     "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
     "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
     "avatar_description": "a green goblin looking nasty",
+    "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
     "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
     "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
     "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+    "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
     "followers_count": 2,
     "following_count": 2,
     "statuses_count": 8,
@@ -1777,6 +1801,7 @@ func (suite *InternalToFrontendTestSuite) TestStatusToAPIStatusPendingApproval()
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -1987,6 +2012,7 @@ func (suite *InternalToFrontendTestSuite) TestInstanceV1ToFrontend() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -2127,6 +2153,7 @@ func (suite *InternalToFrontendTestSuite) TestInstanceV2ToFrontend() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 4,
@@ -2247,6 +2274,7 @@ func (suite *InternalToFrontendTestSuite) TestReportToFrontend1() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 0,
     "following_count": 0,
     "statuses_count": 3,
@@ -2290,6 +2318,7 @@ func (suite *InternalToFrontendTestSuite) TestReportToFrontend2() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 8,
@@ -2366,6 +2395,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontend1() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 3,
@@ -2411,6 +2441,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontend1() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 8,
@@ -2469,6 +2500,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontend1() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 4,
@@ -2523,6 +2555,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontend1() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 4,
@@ -2600,6 +2633,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontend2() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 8,
@@ -2658,6 +2692,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontend2() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 3,
@@ -2705,6 +2740,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontend2() {
         "avatar_static": "",
         "header": "http://localhost:8080/assets/default_header.webp",
         "header_static": "http://localhost:8080/assets/default_header.webp",
+        "header_description": "Flat gray background (default header).",
         "followers_count": 0,
         "following_count": 0,
         "statuses_count": 3,
@@ -2863,6 +2899,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontendSuspendedLoca
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 3,
@@ -2908,6 +2945,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontendSuspendedLoca
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 0,
       "following_count": 0,
       "statuses_count": 0,
@@ -2955,6 +2993,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontendSuspendedLoca
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 4,
@@ -3009,6 +3048,7 @@ func (suite *InternalToFrontendTestSuite) TestAdminReportToFrontendSuspendedLoca
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 4,
@@ -3155,6 +3195,7 @@ func (suite *InternalToFrontendTestSuite) TestIntReqToAPI() {
     "avatar_static": "",
     "header": "http://localhost:8080/assets/default_header.webp",
     "header_static": "http://localhost:8080/assets/default_header.webp",
+    "header_description": "Flat gray background (default header).",
     "followers_count": 1,
     "following_count": 1,
     "statuses_count": 4,
@@ -3210,6 +3251,7 @@ func (suite *InternalToFrontendTestSuite) TestIntReqToAPI() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 8,
@@ -3302,6 +3344,7 @@ func (suite *InternalToFrontendTestSuite) TestIntReqToAPI() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 4,
@@ -3414,9 +3457,11 @@ func (suite *InternalToFrontendTestSuite) TestConversationToAPISelfConvo() {
       "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
       "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
       "avatar_description": "a green goblin looking nasty",
+      "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
       "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
       "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
       "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+      "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
       "followers_count": 2,
       "following_count": 2,
       "statuses_count": 8,
@@ -3465,9 +3510,11 @@ func (suite *InternalToFrontendTestSuite) TestConversationToAPISelfConvo() {
       "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
       "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
       "avatar_description": "a green goblin looking nasty",
+      "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
       "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
       "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
       "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+      "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
       "followers_count": 2,
       "following_count": 2,
       "statuses_count": 8,
@@ -3569,6 +3616,7 @@ func (suite *InternalToFrontendTestSuite) TestConversationToAPI() {
       "avatar_static": "",
       "header": "http://localhost:8080/assets/default_header.webp",
       "header_static": "http://localhost:8080/assets/default_header.webp",
+      "header_description": "Flat gray background (default header).",
       "followers_count": 1,
       "following_count": 1,
       "statuses_count": 8,
@@ -3628,9 +3676,11 @@ func (suite *InternalToFrontendTestSuite) TestConversationToAPI() {
       "avatar": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpg",
       "avatar_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.webp",
       "avatar_description": "a green goblin looking nasty",
+      "avatar_media_id": "01F8MH58A357CV5K7R7TJMSH6S",
       "header": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpg",
       "header_static": "http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.webp",
       "header_description": "A very old-school screenshot of the original team fortress mod for quake",
+      "header_media_id": "01PFPMWK2FF0D9WMHEJHR07C3Q",
       "followers_count": 2,
       "following_count": 2,
       "statuses_count": 8,

internal/validate/formvalidation.go

@@ -189,6 +189,16 @@ func CustomCSS(customCSS string) error {
 	return nil
 }
 
+func InstanceCustomCSS(customCSS string) error {
+
+	maximumCustomCSSLength := config.GetAccountsCustomCSSLength()
+	if length := len([]rune(customCSS)); length > maximumCustomCSSLength {
+		return fmt.Errorf("custom_css must be less than %d characters, but submitted custom_css was %d characters", maximumCustomCSSLength, length)
+	}
+
+	return nil
+}
+
 // EmojiShortcode just runs the given shortcode through the regular expression
 // for emoji shortcodes, to figure out whether it's a valid shortcode, ie., 2-30 characters,
 // a-zA-Z, numbers, and underscores.

internal/web/about.go

@@ -54,7 +54,7 @@ func (m *Module) aboutGETHandler(c *gin.Context) {
 		Template:    "about.tmpl",
 		Instance:    instance,
 		OGMeta:      apiutil.OGBase(instance),
-		Stylesheets: []string{cssAbout},
+		Stylesheets: []string{cssAbout, instanceCustomCSSPath},
 		Extra: map[string]any{
 			"showStrap":        true,
 			"blocklistExposed": config.GetInstanceExposeSuspendedWeb(),

internal/web/confirmemail.go

@@ -129,6 +129,7 @@ func (m *Module) confirmEmailPOSTHandler(c *gin.Context) {
 	page := apiutil.WebPage{
 		Template:    "confirmed_email.tmpl",
 		Instance:    instance,
+		Stylesheets: []string{instanceCustomCSSPath},
 		Extra: map[string]any{
 			"email":    user.Email,
 			"username": user.Account.Username,

internal/web/customcss.go

@@ -55,3 +55,22 @@ func (m *Module) customCSSGETHandler(c *gin.Context) {
 	c.Header(cacheControlHeader, cacheControlNoCache)
 	c.Data(http.StatusOK, textCSSUTF8, []byte(customCSS))
 }
+
+func (m *Module) instanceCustomCSSGETHandler(c *gin.Context) {
+
+	if _, err := apiutil.NegotiateAccept(c, apiutil.TextCSS); err != nil {
+		apiutil.WebErrorHandler(c, gtserror.NewErrorNotAcceptable(err, err.Error()), m.processor.InstanceGetV1)
+		return
+	}
+
+	instanceV1, errWithCode := m.processor.InstanceGetV1(c.Request.Context())
+	if errWithCode != nil {
+		apiutil.WebErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
+		return
+	}
+
+	instanceCustomCSS := instanceV1.CustomCSS
+
+	c.Header(cacheControlHeader, cacheControlNoCache)
+	c.Data(http.StatusOK, textCSSUTF8, []byte(instanceCustomCSS))
+}

internal/web/domain-blocklist.go

@@ -67,7 +67,7 @@ func (m *Module) domainBlockListGETHandler(c *gin.Context) {
 		Template:    "domain-blocklist.tmpl",
 		Instance:    instance,
 		OGMeta:      apiutil.OGBase(instance),
-		Stylesheets: []string{cssFA},
+		Stylesheets: []string{cssFA, instanceCustomCSSPath},
 		Javascript:  []string{jsFrontend},
 		Extra:       map[string]any{"blocklist": domainBlocks},
 	}

internal/web/index.go

@@ -59,7 +59,7 @@ func (m *Module) indexHandler(c *gin.Context) {
 		Template:    "index.tmpl",
 		Instance:    instance,
 		OGMeta:      apiutil.OGBase(instance),
-		Stylesheets: []string{cssAbout, cssIndex},
+		Stylesheets: []string{cssAbout, cssIndex, instanceCustomCSSPath},
 		Extra:       map[string]any{"showStrap": true},
 	}
 

internal/web/profile.go

@@ -132,7 +132,7 @@ func (m *Module) profileGETHandler(c *gin.Context) {
 	}
 
 	// Prepare stylesheets for profile.
-	stylesheets := make([]string, 0, 6)
+	stylesheets := make([]string, 0, 7)
 
 	// Basic profile stylesheets.
 	stylesheets = append(
@@ -142,6 +142,7 @@ func (m *Module) profileGETHandler(c *gin.Context) {
 			cssStatus,
 			cssThread,
 			cssProfile,
+			instanceCustomCSSPath,
 		}...,
 	)
 

internal/web/settings-panel.go

@@ -53,6 +53,7 @@ func (m *Module) SettingsPanelHandler(c *gin.Context) {
 			cssProfile, // Used for rendering stub/fake profiles.
 			cssStatus,  // Used for rendering stub/fake statuses.
 			cssSettings,
+			instanceCustomCSSPath,
 		},
 		Javascript: []string{jsSettings},
 	}

internal/web/signup.go

@@ -128,6 +128,7 @@ func (m *Module) signupPOSTHandler(c *gin.Context) {
 	page := apiutil.WebPage{
 		Template:    "signed-up.tmpl",
 		Instance:    instance,
+		Stylesheets: []string{instanceCustomCSSPath},
 		OGMeta:      apiutil.OGBase(instance),
 		Extra: map[string]any{
 			"email":    user.UnconfirmedEmail,

internal/web/tag.go

@@ -59,7 +59,7 @@ func (m *Module) tagGETHandler(c *gin.Context) {
 		Template:    "tag.tmpl",
 		Instance:    instance,
 		OGMeta:      apiutil.OGBase(instance),
-		Stylesheets: []string{cssFA, cssThread, cssTag},
+		Stylesheets: []string{cssFA, cssThread, cssTag, instanceCustomCSSPath},
 		Extra:       map[string]any{"tagName": tagName},
 	}
 

internal/web/thread.go

@@ -115,7 +115,7 @@ func (m *Module) threadGETHandler(c *gin.Context) {
 	}
 
 	// Prepare stylesheets for thread.
-	stylesheets := make([]string, 0, 5)
+	stylesheets := make([]string, 0, 6)
 
 	// Basic thread stylesheets.
 	stylesheets = append(
@@ -131,6 +131,7 @@ func (m *Module) threadGETHandler(c *gin.Context) {
 	if theme := targetAccount.Theme; theme != "" {
 		stylesheets = append(
 			stylesheets,
+			instanceCustomCSSPath,
 			themesPathPrefix+"/"+theme,
 		)
 	}

internal/web/web.go

@@ -41,6 +41,7 @@
 	statusPath            = "/statuses/:" + apiutil.WebStatusIDKey // leave out the '/@:username' prefix as this will be served within the profile group
 	tagsPath              = "/tags/:" + apiutil.TagNameKey
 	customCSSPath         = profileGroupPath + "/custom.css"
+	instanceCustomCSSPath = "/custom.css"
 	rssFeedPath           = profileGroupPath + "/feed.rss"
 	assetsPathPrefix      = "/assets"
 	distPathPrefix        = assetsPathPrefix + "/dist"
@@ -114,6 +115,7 @@ func (m *Module) Route(r *router.Router, mi ...gin.HandlerFunc) {
 	r.AttachHandler(http.MethodGet, settingsPathPrefix, m.SettingsPanelHandler)
 	r.AttachHandler(http.MethodGet, settingsPanelGlob, m.SettingsPanelHandler)
 	r.AttachHandler(http.MethodGet, customCSSPath, m.customCSSGETHandler)
+	r.AttachHandler(http.MethodGet, instanceCustomCSSPath, m.instanceCustomCSSGETHandler)
 	r.AttachHandler(http.MethodGet, rssFeedPath, m.rssFeedGETHandler)
 	r.AttachHandler(http.MethodGet, confirmEmailPath, m.confirmEmailGETHandler)
 	r.AttachHandler(http.MethodPost, confirmEmailPath, m.confirmEmailPOSTHandler)

vendor/github.com/tdewolff/minify/v2/html/html.go

@@ -199,7 +199,7 @@ func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, _ map[string]st
 						} else if next.TokenType == html.TextToken && !parse.IsAllWhitespace(next.Data) {
 							// stop looking when text encountered
 							break
-						} else if next.TokenType == html.StartTagToken || next.TokenType == html.EndTagToken {
+						} else if next.TokenType == html.StartTagToken || next.TokenType == html.EndTagToken || next.TokenType == html.SvgToken || next.TokenType == html.MathToken {
 							if o.KeepWhitespace {
 								break
 							}
@@ -208,7 +208,7 @@ func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, _ map[string]st
 								t.Data = t.Data[:len(t.Data)-1]
 								omitSpace = false
 								break
-							} else if next.TokenType == html.StartTagToken {
+							} else if next.TokenType == html.StartTagToken || next.TokenType == html.SvgToken || next.TokenType == html.MathToken {
 								break
 							}
 						}
@@ -309,7 +309,7 @@ func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, _ map[string]st
 
 				// skip text in select and optgroup tags
 				if t.Hash == Option || t.Hash == Optgroup {
-					if next := tb.Peek(0); next.TokenType == html.TextToken {
+					if next := tb.Peek(0); next.TokenType == html.TextToken && !next.HasTemplate {
 						tb.Shift()
 					}
 				}

vendor/github.com/tdewolff/minify/v2/html/table.go

@@ -74,7 +74,7 @@
 	Input:      objectTag,
 	Ins:        keepPTag,
 	Kbd:        normalTag,
-	Label:      normalTag,
+	Label:      normalTag | keepPTag, // experimentally, keepPTag is needed
 	Legend:     blockTag,
 	Li:         blockTag,
 	Link:       normalTag,
@@ -125,7 +125,7 @@
 	Th:         blockTag,
 	Thead:      blockTag,
 	Time:       normalTag,
-	Title:      normalTag,
+	Title:      blockTag,
 	Tr:         blockTag,
 	Track:      normalTag,
 	U:          normalTag,

vendor/github.com/tdewolff/parse/v2/binary.go

@@ -2,12 +2,15 @@
 
 import (
 	"encoding/binary"
+	"errors"
 	"fmt"
 	"io"
 	"math"
 	"os"
 )
 
+const PageSize = 4096
+
 // BinaryReader is a binary big endian file format reader.
 type BinaryReader struct {
 	Endianness binary.ByteOrder
@@ -330,6 +333,320 @@ func (r *BinaryFileReader) ReadInt64() int64 {
 	return int64(r.ReadUint64())
 }
 
+type IBinaryReader interface {
+	Close() error
+	Len() int
+	Bytes(int, int64) ([]byte, error)
+}
+
+type binaryReaderFile struct {
+	f    *os.File
+	size int64
+}
+
+func newBinaryReaderFile(filename string) (*binaryReaderFile, error) {
+	f, err := os.Open(filename)
+	if err != nil {
+		return nil, err
+	}
+	fi, err := f.Stat()
+	if err != nil {
+		f.Close()
+		return nil, err
+	}
+	return &binaryReaderFile{f, fi.Size()}, nil
+}
+
+// Close closes the reader.
+func (r *binaryReaderFile) Close() error {
+	return r.f.Close()
+}
+
+// Len returns the length of the underlying memory-mapped file.
+func (r *binaryReaderFile) Len() int {
+	return int(r.size)
+}
+
+func (r *binaryReaderFile) Bytes(n int, off int64) ([]byte, error) {
+	if _, err := r.f.Seek(off, 0); err != nil {
+		return nil, err
+	}
+
+	b := make([]byte, n)
+	m, err := r.f.Read(b)
+	if err != nil {
+		return nil, err
+	} else if m != n {
+		return nil, errors.New("file: could not read all bytes")
+	}
+	return b, nil
+}
+
+type binaryReaderBytes struct {
+	data []byte
+}
+
+func newBinaryReaderBytes(data []byte) (*binaryReaderBytes, error) {
+	return &binaryReaderBytes{data}, nil
+}
+
+// Close closes the reader.
+func (r *binaryReaderBytes) Close() error {
+	return nil
+}
+
+// Len returns the length of the underlying memory-mapped file.
+func (r *binaryReaderBytes) Len() int {
+	return len(r.data)
+}
+
+func (r *binaryReaderBytes) Bytes(n int, off int64) ([]byte, error) {
+	if off < 0 || int64(len(r.data)) < off {
+		return nil, fmt.Errorf("bytes: invalid offset %d", off)
+	}
+	return r.data[off : off+int64(n) : off+int64(n)], nil
+}
+
+type binaryReaderReader struct {
+	r        io.Reader
+	n        int64
+	readerAt bool
+	seeker   bool
+}
+
+func newBinaryReaderReader(r io.Reader, n int64) (*binaryReaderReader, error) {
+	_, readerAt := r.(io.ReaderAt)
+	_, seeker := r.(io.Seeker)
+	return &binaryReaderReader{r, n, readerAt, seeker}, nil
+}
+
+// Close closes the reader.
+func (r *binaryReaderReader) Close() error {
+	if closer, ok := r.r.(io.Closer); ok {
+		return closer.Close()
+	}
+	return nil
+}
+
+// Len returns the length of the underlying memory-mapped file.
+func (r *binaryReaderReader) Len() int {
+	return int(r.n)
+}
+
+func (r *binaryReaderReader) Bytes(n int, off int64) ([]byte, error) {
+	// seeker seems faster than readerAt by 10%
+	if r.seeker {
+		if _, err := r.r.(io.Seeker).Seek(off, 0); err != nil {
+			return nil, err
+		}
+
+		b := make([]byte, n)
+		m, err := r.r.Read(b)
+		if err != nil {
+			return nil, err
+		} else if m != n {
+			return nil, errors.New("file: could not read all bytes")
+		}
+		return b, nil
+	} else if r.readerAt {
+		b := make([]byte, n)
+		m, err := r.r.(io.ReaderAt).ReadAt(b, off)
+		if err != nil {
+			return nil, err
+		} else if m != n {
+			return nil, errors.New("file: could not read all bytes")
+		}
+		return b, nil
+	}
+	return nil, errors.New("io.Seeker and io.ReaderAt not implemented")
+}
+
+type BinaryReader2 struct {
+	f   IBinaryReader
+	pos int64
+	err error
+
+	Endian binary.ByteOrder
+}
+
+func NewBinaryReader2(f IBinaryReader) *BinaryReader2 {
+	return &BinaryReader2{
+		f:      f,
+		Endian: binary.BigEndian,
+	}
+}
+
+func NewBinaryReader2Reader(r io.Reader, n int64) (*BinaryReader2, error) {
+	_, isReaderAt := r.(io.ReaderAt)
+	_, isSeeker := r.(io.Seeker)
+
+	var f IBinaryReader
+	if isReaderAt || isSeeker {
+		var err error
+		f, err = newBinaryReaderReader(r, n)
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		b := make([]byte, n)
+		if _, err := io.ReadFull(r, b); err != nil {
+			return nil, err
+		}
+		f, _ = newBinaryReaderBytes(b)
+	}
+	return NewBinaryReader2(f), nil
+}
+
+func NewBinaryReader2Bytes(data []byte) (*BinaryReader2, error) {
+	f, _ := newBinaryReaderBytes(data)
+	return NewBinaryReader2(f), nil
+}
+
+func NewBinaryReader2File(filename string) (*BinaryReader2, error) {
+	f, err := newBinaryReaderFile(filename)
+	if err != nil {
+		return nil, err
+	}
+	return NewBinaryReader2(f), nil
+}
+
+func NewBinaryReader2Mmap(filename string) (*BinaryReader2, error) {
+	f, err := newBinaryReaderMmap(filename)
+	if err != nil {
+		return nil, err
+	}
+	return NewBinaryReader2(f), nil
+}
+
+func (r *BinaryReader2) Err() error {
+	return r.err
+}
+
+func (r *BinaryReader2) Close() error {
+	if err := r.f.Close(); err != nil {
+		return err
+	}
+	return r.err
+}
+
+// InPageCache returns true if the range is already in the page cache (for mmap).
+func (r *BinaryReader2) InPageCache(start, end int64) bool {
+	index := int64(r.Pos()) / PageSize
+	return start/PageSize == index && end/PageSize == index
+}
+
+// Free frees all previously read bytes, you cannot seek from before this position (for reader).
+func (r *BinaryReader2) Free() {
+}
+
+// Pos returns the reader's position.
+func (r *BinaryReader2) Pos() int64 {
+	return r.pos
+}
+
+// Len returns the remaining length of the buffer.
+func (r *BinaryReader2) Len() int {
+	return int(int64(r.f.Len()) - int64(r.pos))
+}
+
+func (r *BinaryReader2) Seek(pos int64) {
+	r.pos = pos
+}
+
+// Read complies with io.Reader.
+func (r *BinaryReader2) Read(b []byte) (int, error) {
+	data, err := r.f.Bytes(len(b), r.pos)
+	if err != nil && err != io.EOF {
+		return 0, err
+	}
+	n := copy(b, data)
+	r.pos += int64(len(b))
+	return n, err
+}
+
+// ReadBytes reads n bytes.
+func (r *BinaryReader2) ReadBytes(n int) []byte {
+	data, err := r.f.Bytes(n, r.pos)
+	if err != nil {
+		r.err = err
+		return nil
+	}
+	r.pos += int64(n)
+	return data
+}
+
+// ReadString reads a string of length n.
+func (r *BinaryReader2) ReadString(n int) string {
+	return string(r.ReadBytes(n))
+}
+
+// ReadByte reads a single byte.
+func (r *BinaryReader2) ReadByte() byte {
+	data := r.ReadBytes(1)
+	if data == nil {
+		return 0
+	}
+	return data[0]
+}
+
+// ReadUint8 reads a uint8.
+func (r *BinaryReader2) ReadUint8() uint8 {
+	return r.ReadByte()
+}
+
+// ReadUint16 reads a uint16.
+func (r *BinaryReader2) ReadUint16() uint16 {
+	data := r.ReadBytes(2)
+	if data == nil {
+		return 0
+	} else if r.Endian == binary.LittleEndian {
+		return uint16(data[1])<<8 | uint16(data[0])
+	}
+	return uint16(data[0])<<8 | uint16(data[1])
+}
+
+// ReadUint32 reads a uint32.
+func (r *BinaryReader2) ReadUint32() uint32 {
+	data := r.ReadBytes(4)
+	if data == nil {
+		return 0
+	} else if r.Endian == binary.LittleEndian {
+		return uint32(data[3])<<24 | uint32(data[2])<<16 | uint32(data[1])<<8 | uint32(data[0])
+	}
+	return uint32(data[0])<<24 | uint32(data[1])<<16 | uint32(data[2])<<8 | uint32(data[3])
+}
+
+// ReadUint64 reads a uint64.
+func (r *BinaryReader2) ReadUint64() uint64 {
+	data := r.ReadBytes(8)
+	if data == nil {
+		return 0
+	} else if r.Endian == binary.LittleEndian {
+		return uint64(data[7])<<56 | uint64(data[6])<<48 | uint64(data[5])<<40 | uint64(data[4])<<32 | uint64(data[3])<<24 | uint64(data[2])<<16 | uint64(data[1])<<8 | uint64(data[0])
+	}
+	return uint64(data[0])<<56 | uint64(data[1])<<48 | uint64(data[2])<<40 | uint64(data[3])<<32 | uint64(data[4])<<24 | uint64(data[5])<<16 | uint64(data[6])<<8 | uint64(data[7])
+}
+
+// ReadInt8 reads a int8.
+func (r *BinaryReader2) ReadInt8() int8 {
+	return int8(r.ReadByte())
+}
+
+// ReadInt16 reads a int16.
+func (r *BinaryReader2) ReadInt16() int16 {
+	return int16(r.ReadUint16())
+}
+
+// ReadInt32 reads a int32.
+func (r *BinaryReader2) ReadInt32() int32 {
+	return int32(r.ReadUint32())
+}
+
+// ReadInt64 reads a int64.
+func (r *BinaryReader2) ReadInt64() int64 {
+	return int64(r.ReadUint64())
+}
+
 // BinaryWriter is a big endian binary file format writer.
 type BinaryWriter struct {
 	buf []byte

vendor/github.com/tdewolff/parse/v2/binary_unix.go

@@ -0,0 +1,83 @@
+//go:build unix
+
+package parse
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"runtime"
+	"syscall"
+)
+
+type binaryReaderMmap struct {
+	data []byte
+}
+
+func newBinaryReaderMmap(filename string) (*binaryReaderMmap, error) {
+	f, err := os.Open(filename)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	fi, err := f.Stat()
+	if err != nil {
+		return nil, err
+	}
+
+	size := fi.Size()
+	if size == 0 {
+		// Treat (size == 0) as a special case, avoiding the syscall, since
+		// "man 2 mmap" says "the length... must be greater than 0".
+		//
+		// As we do not call syscall.Mmap, there is no need to call
+		// runtime.SetFinalizer to enforce a balancing syscall.Munmap.
+		return &binaryReaderMmap{
+			data: make([]byte, 0),
+		}, nil
+	} else if size < 0 {
+		return nil, fmt.Errorf("mmap: file %q has negative size", filename)
+	} else if size != int64(int(size)) {
+		return nil, fmt.Errorf("mmap: file %q is too large", filename)
+	}
+
+	data, err := syscall.Mmap(int(f.Fd()), 0, int(size), syscall.PROT_READ, syscall.MAP_SHARED)
+	if err != nil {
+		return nil, err
+	}
+	r := &binaryReaderMmap{data}
+	runtime.SetFinalizer(r, (*binaryReaderMmap).Close)
+	return r, nil
+}
+
+// Close closes the reader.
+func (r *binaryReaderMmap) Close() error {
+	if r.data == nil {
+		return nil
+	} else if len(r.data) == 0 {
+		r.data = nil
+		return nil
+	}
+	data := r.data
+	r.data = nil
+	runtime.SetFinalizer(r, nil)
+	return syscall.Munmap(data)
+}
+
+// Len returns the length of the underlying memory-mapped file.
+func (r *binaryReaderMmap) Len() int {
+	return len(r.data)
+}
+
+func (r *binaryReaderMmap) Bytes(n int, off int64) ([]byte, error) {
+	if r.data == nil {
+		return nil, errors.New("mmap: closed")
+	} else if off < 0 || int64(len(r.data)) < off {
+		return nil, fmt.Errorf("mmap: invalid offset %d", off)
+	} else if int64(len(r.data)-n) < off {
+		return r.data[off:len(r.data):len(r.data)], io.EOF
+	}
+	return r.data[off : off+int64(n) : off+int64(n)], nil
+}

vendor/github.com/tdewolff/parse/v2/html/lex.go

@@ -362,7 +362,7 @@ func (l *Lexer) shiftBogusComment() []byte {
 
 func (l *Lexer) shiftStartTag() (TokenType, []byte) {
 	for {
-		if c := l.r.Peek(0); c == ' ' || c == '>' || c == '/' && l.r.Peek(1) == '>' || c == '\t' || c == '\n' || c == '\r' || c == '\f' || c == 0 && l.r.Err() != nil {
+		if c := l.r.Peek(0); (c < 'a' || 'z' < c) && (c < 'A' || 'Z' < c) && (c < '0' || '9' < c) && c != '-' {
 			break
 		}
 		l.r.Move(1)

vendor/github.com/yuin/goldmark/ast/ast.go

@@ -123,6 +123,12 @@ type Node interface {
 	Dump(source []byte, level int)
 
 	// Text returns text values of this node.
+	// This method is valid only for some inline nodes.
+	// If this node is a block node, Text returns a text value as reasonable as possible.
+	// Notice that there are no 'correct' text values for the block nodes.
+	// Result for the block nodes may be different from your expectation.
+	//
+	// Deprecated: Use other properties of the node to get the text value(i.e. Pragraph.Lines, Text.Value).
 	Text(source []byte) []byte
 
 	// HasBlankPreviousLines returns true if the row before this node is blank,
@@ -375,10 +381,17 @@ func (n *BaseNode) OwnerDocument() *Document {
 }
 
 // Text implements Node.Text .
+//
+// Deprecated: Use other properties of the node to get the text value(i.e. Pragraph.Lines, Text.Value).
 func (n *BaseNode) Text(source []byte) []byte {
 	var buf bytes.Buffer
 	for c := n.firstChild; c != nil; c = c.NextSibling() {
 		buf.Write(c.Text(source))
+		if sb, ok := c.(interface {
+			SoftLineBreak() bool
+		}); ok && sb.SoftLineBreak() {
+			buf.WriteByte('\n')
+		}
 	}
 	return buf.Bytes()
 }

vendor/github.com/yuin/goldmark/ast/block.go

@@ -1,7 +1,6 @@
 package ast
 
 import (
-	"bytes"
 	"fmt"
 	"strings"
 
@@ -48,15 +47,6 @@ func (b *BaseBlock) SetLines(v *textm.Segments) {
 	b.lines = v
 }
 
-// Text implements Node.Text.
-func (b *BaseBlock) Text(source []byte) []byte {
-	var buf bytes.Buffer
-	for _, line := range b.Lines().Sliced(0, b.Lines().Len()) {
-		buf.Write(line.Value(source))
-	}
-	return buf.Bytes()
-}
-
 // A Document struct is a root node of Markdown text.
 type Document struct {
 	BaseBlock
@@ -140,6 +130,13 @@ func (n *TextBlock) Kind() NodeKind {
 	return KindTextBlock
 }
 
+// Text implements Node.Text.
+//
+// Deprecated: Use other properties of the node to get the text value(i.e. TextBlock.Lines).
+func (n *TextBlock) Text(source []byte) []byte {
+	return n.Lines().Value(source)
+}
+
 // NewTextBlock returns a new TextBlock node.
 func NewTextBlock() *TextBlock {
 	return &TextBlock{
@@ -165,6 +162,13 @@ func (n *Paragraph) Kind() NodeKind {
 	return KindParagraph
 }
 
+// Text implements Node.Text.
+//
+// Deprecated: Use other properties of the node to get the text value(i.e. Paragraph.Lines).
+func (n *Paragraph) Text(source []byte) []byte {
+	return n.Lines().Value(source)
+}
+
 // NewParagraph returns a new Paragraph node.
 func NewParagraph() *Paragraph {
 	return &Paragraph{
@@ -259,6 +263,13 @@ func (n *CodeBlock) Kind() NodeKind {
 	return KindCodeBlock
 }
 
+// Text implements Node.Text.
+//
+// Deprecated: Use other properties of the node to get the text value(i.e. CodeBlock.Lines).
+func (n *CodeBlock) Text(source []byte) []byte {
+	return n.Lines().Value(source)
+}
+
 // NewCodeBlock returns a new CodeBlock node.
 func NewCodeBlock() *CodeBlock {
 	return &CodeBlock{
@@ -314,6 +325,13 @@ func (n *FencedCodeBlock) Kind() NodeKind {
 	return KindFencedCodeBlock
 }
 
+// Text implements Node.Text.
+//
+// Deprecated: Use other properties of the node to get the text value(i.e. FencedCodeBlock.Lines).
+func (n *FencedCodeBlock) Text(source []byte) []byte {
+	return n.Lines().Value(source)
+}
+
 // NewFencedCodeBlock return a new FencedCodeBlock node.
 func NewFencedCodeBlock(info *Text) *FencedCodeBlock {
 	return &FencedCodeBlock{
@@ -508,6 +526,17 @@ func (n *HTMLBlock) Kind() NodeKind {
 	return KindHTMLBlock
 }
 
+// Text implements Node.Text.
+//
+// Deprecated: Use other properties of the node to get the text value(i.e. HTMLBlock.Lines).
+func (n *HTMLBlock) Text(source []byte) []byte {
+	ret := n.Lines().Value(source)
+	if n.HasClosure() {
+		ret = append(ret, n.ClosureLine.Value(source)...)
+	}
+	return ret
+}
+
 // NewHTMLBlock returns a new HTMLBlock node.
 func NewHTMLBlock(typ HTMLBlockType) *HTMLBlock {
 	return &HTMLBlock{

vendor/github.com/yuin/goldmark/ast/inline.go

@@ -143,17 +143,25 @@ func (n *Text) Merge(node Node, source []byte) bool {
 }
 
 // Text implements Node.Text.
+//
+// Deprecated: Use other properties of the node to get the text value(i.e. Text.Value).
 func (n *Text) Text(source []byte) []byte {
 	return n.Segment.Value(source)
 }
 
+// Value returns a value of this node.
+// SoftLineBreaks are not included in the returned value.
+func (n *Text) Value(source []byte) []byte {
+	return n.Segment.Value(source)
+}
+
 // Dump implements Node.Dump.
 func (n *Text) Dump(source []byte, level int) {
 	fs := textFlagsString(n.flags)
 	if len(fs) != 0 {
 		fs = "(" + fs + ")"
 	}
-	fmt.Printf("%sText%s: \"%s\"\n", strings.Repeat("    ", level), fs, strings.TrimRight(string(n.Text(source)), "\n"))
+	fmt.Printf("%sText%s: \"%s\"\n", strings.Repeat("    ", level), fs, strings.TrimRight(string(n.Value(source)), "\n"))
 }
 
 // KindText is a NodeKind of the Text node.
@@ -258,6 +266,8 @@ func (n *String) SetCode(v bool) {
 }
 
 // Text implements Node.Text.
+//
+// Deprecated: Use other properties of the node to get the text value(i.e. String.Value).
 func (n *String) Text(source []byte) []byte {
 	return n.Value
 }
@@ -492,15 +502,22 @@ func (n *AutoLink) URL(source []byte) []byte {
 		ret := make([]byte, 0, len(n.Protocol)+s.Len()+3)
 		ret = append(ret, n.Protocol...)
 		ret = append(ret, ':', '/', '/')
-		ret = append(ret, n.value.Text(source)...)
+		ret = append(ret, n.value.Value(source)...)
 		return ret
 	}
-	return n.value.Text(source)
+	return n.value.Value(source)
 }
 
 // Label returns a label of this node.
 func (n *AutoLink) Label(source []byte) []byte {
-	return n.value.Text(source)
+	return n.value.Value(source)
+}
+
+// Text implements Node.Text.
+//
+// Deprecated: Use other properties of the node to get the text value(i.e. AutoLink.Label).
+func (n *AutoLink) Text(source []byte) []byte {
+	return n.value.Value(source)
 }
 
 // NewAutoLink returns a new AutoLink node.
@@ -541,6 +558,13 @@ func (n *RawHTML) Kind() NodeKind {
 	return KindRawHTML
 }
 
+// Text implements Node.Text.
+//
+// Deprecated: Use other properties of the node to get the text value(i.e. RawHTML.Segments).
+func (n *RawHTML) Text(source []byte) []byte {
+	return n.Segments.Value(source)
+}
+
 // NewRawHTML returns a new RawHTML node.
 func NewRawHTML() *RawHTML {
 	return &RawHTML{

vendor/github.com/yuin/goldmark/parser/code_block.go

@@ -35,6 +35,7 @@ func (b *codeBlockParser) Open(parent ast.Node, reader text.Reader, pc Context)
 	if segment.Padding != 0 {
 		preserveLeadingTabInCodeBlock(&segment, reader, 0)
 	}
+	segment.ForceNewline = true
 	node.Lines().Append(segment)
 	reader.Advance(segment.Len() - 1)
 	return node, NoChildren
@@ -59,6 +60,7 @@ func (b *codeBlockParser) Continue(node ast.Node, reader text.Reader, pc Context
 		preserveLeadingTabInCodeBlock(&segment, reader, 0)
 	}
 
+	segment.ForceNewline = true
 	node.Lines().Append(segment)
 	reader.Advance(segment.Len() - 1)
 	return Continue | NoChildren

vendor/github.com/yuin/goldmark/parser/fcode_block.go

@@ -100,6 +100,7 @@ func (b *fencedCodeBlockParser) Continue(node ast.Node, reader text.Reader, pc C
 	if padding != 0 {
 		preserveLeadingTabInCodeBlock(&seg, reader, fdata.indent)
 	}
+	seg.ForceNewline = true // EOF as newline
 	node.Lines().Append(seg)
 	reader.AdvanceAndSetPadding(segment.Stop-segment.Start-pos-1, padding)
 	return Continue | NoChildren

vendor/github.com/yuin/goldmark/parser/parser.go

@@ -878,12 +878,6 @@ func (p *parser) Parse(reader text.Reader, opts ...ParseOption) ast.Node {
 	blockReader := text.NewBlockReader(reader.Source(), nil)
 	p.walkBlock(root, func(node ast.Node) {
 		p.parseBlock(blockReader, node, pc)
-		lines := node.Lines()
-		if lines != nil && lines.Len() != 0 {
-			s := lines.At(lines.Len() - 1)
-			s.EOB = true
-			lines.Set(lines.Len()-1, s)
-		}
 	})
 	for _, at := range p.astTransformers {
 		at.Transform(root, reader, pc)

vendor/github.com/yuin/goldmark/renderer/html/html.go

@@ -680,7 +680,7 @@ func (r *Renderer) renderImage(w util.BufWriter, source []byte, node ast.Node, e
 		_, _ = w.Write(util.EscapeHTML(util.URLEscape(n.Destination, true)))
 	}
 	_, _ = w.WriteString(`" alt="`)
-	r.renderAttribute(w, source, n)
+	r.renderTexts(w, source, n)
 	_ = w.WriteByte('"')
 	if n.Title != nil {
 		_, _ = w.WriteString(` title="`)
@@ -737,7 +737,7 @@ func (r *Renderer) renderText(w util.BufWriter, source []byte, node ast.Node, en
 			if r.EastAsianLineBreaks != EastAsianLineBreaksNone && len(value) != 0 {
 				sibling := node.NextSibling()
 				if sibling != nil && sibling.Kind() == ast.KindText {
-					if siblingText := sibling.(*ast.Text).Text(source); len(siblingText) != 0 {
+					if siblingText := sibling.(*ast.Text).Value(source); len(siblingText) != 0 {
 						thisLastRune := util.ToRune(value, len(value)-1)
 						siblingFirstRune, _ := utf8.DecodeRune(siblingText)
 						if r.EastAsianLineBreaks.softLineBreak(thisLastRune, siblingFirstRune) {
@@ -770,19 +770,14 @@ func (r *Renderer) renderString(w util.BufWriter, source []byte, node ast.Node,
 	return ast.WalkContinue, nil
 }
 
-func (r *Renderer) renderAttribute(w util.BufWriter, source []byte, n ast.Node) {
+func (r *Renderer) renderTexts(w util.BufWriter, source []byte, n ast.Node) {
 	for c := n.FirstChild(); c != nil; c = c.NextSibling() {
 		if s, ok := c.(*ast.String); ok {
 			_, _ = r.renderString(w, source, s, true)
-		} else if t, ok := c.(*ast.String); ok {
+		} else if t, ok := c.(*ast.Text); ok {
 			_, _ = r.renderText(w, source, t, true)
-		} else if !c.HasChildren() {
-			r.Writer.Write(w, c.Text(source))
-			if t, ok := c.(*ast.Text); ok && t.SoftLineBreak() {
-				_ = w.WriteByte('\n')
-			}
 		} else {
-			r.renderAttribute(w, source, c)
+			r.renderTexts(w, source, c)
 		}
 	}
 }

vendor/github.com/yuin/goldmark/text/segment.go

@@ -20,8 +20,19 @@ type Segment struct {
 	// Padding is a padding length of the segment.
 	Padding int
 
-	// EOB is true if the segment is end of the block.
+	// ForceNewline is true if the segment should be ended with a newline.
-	EOB bool
+	// Some elements(i.e. CodeBlock, FencedCodeBlock) does not trim trailing
+	// newlines. Spec defines that EOF is treated as a newline, so we need to
+	// add a newline to the end of the segment if it is not empty.
+	//
+	// i.e.:
+	//
+	//     ```go
+	//     const test = "test"
+	//
+	// This code does not close the code block and ends with EOF. In this case,
+	// we need to add a newline to the end of the last line like `const test = "test"\n`.
+	ForceNewline bool
 }
 
 // NewSegment return a new Segment.
@@ -52,7 +63,7 @@ func (t *Segment) Value(buffer []byte) []byte {
 		result = append(result, bytes.Repeat(space, t.Padding)...)
 		result = append(result, buffer[t.Start:t.Stop]...)
 	}
-	if t.EOB && len(result) > 0 && result[len(result)-1] != '\n' {
+	if t.ForceNewline && len(result) > 0 && result[len(result)-1] != '\n' {
 		result = append(result, '\n')
 	}
 	return result
@@ -217,3 +228,12 @@ func (s *Segments) Unshift(v Segment) {
 	s.values = append(s.values[0:1], s.values[0:]...)
 	s.values[0] = v
 }
+
+// Value returns a string value of the collection.
+func (s *Segments) Value(buffer []byte) []byte {
+	var result []byte
+	for _, v := range s.values {
+		result = append(result, v.Value(buffer)...)
+	}
+	return result
+}

vendor/modules.txt

@@ -556,7 +556,7 @@ github.com/pkg/errors
 # github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2
 ## explicit
 github.com/pmezard/go-difflib/difflib
-# github.com/prometheus/client_golang v1.20.4
+# github.com/prometheus/client_golang v1.20.5
 ## explicit; go 1.20
 github.com/prometheus/client_golang/internal/github.com/golang/gddo/httputil
 github.com/prometheus/client_golang/internal/github.com/golang/gddo/httputil/header
@@ -832,11 +832,11 @@ github.com/superseriousbusiness/oauth2/v4/generates
 github.com/superseriousbusiness/oauth2/v4/manage
 github.com/superseriousbusiness/oauth2/v4/models
 github.com/superseriousbusiness/oauth2/v4/server
-# github.com/tdewolff/minify/v2 v2.20.37
+# github.com/tdewolff/minify/v2 v2.21.0
 ## explicit; go 1.18
 github.com/tdewolff/minify/v2
 github.com/tdewolff/minify/v2/html
-# github.com/tdewolff/parse/v2 v2.7.15
+# github.com/tdewolff/parse/v2 v2.7.17
 ## explicit; go 1.13
 github.com/tdewolff/parse/v2
 github.com/tdewolff/parse/v2/buffer
@@ -954,7 +954,7 @@ github.com/vmihailenco/tagparser/v2/internal/parser
 # github.com/wagslane/go-password-validator v0.3.0
 ## explicit; go 1.16
 github.com/wagslane/go-password-validator
-# github.com/yuin/goldmark v1.7.6
+# github.com/yuin/goldmark v1.7.8
 ## explicit; go 1.19
 github.com/yuin/goldmark
 github.com/yuin/goldmark/ast

web/source/settings/components/user-logout-card.tsx

@@ -19,6 +19,7 @@
 
 import React from "react";
 import Loading from "./loading";
+import { Error as ErrorC } from "./error";
 import { useVerifyCredentialsQuery, useLogoutMutation } from "../lib/query/oauth";
 import { useInstanceV1Query } from "../lib/query/gts-api";
 
@@ -29,7 +30,12 @@ export default function UserLogoutCard() {
 
 	if (isLoading) {
 		return <Loading />;
-	} else {
+	}
+	
+	if (!profile) {
+		return <ErrorC error={new Error("account was undefined")} />;
+	}
+
 	return (
 		<div className="account-card">
 			<img className="avatar" src={profile.avatar} alt="" />
@@ -40,5 +46,4 @@ export default function UserLogoutCard() {
 			</a>
 		</div>
 	);
-	}
 }

web/source/settings/lib/query/oauth/index.ts

@@ -26,6 +26,7 @@ import {
 	authorize as oauthAuthorize,
 } from "../../../redux/oauth";
 import { RootState } from '../../../redux/store';
+import { Account } from '../../types/account';
 
 export interface OauthTokenRequestBody {
 	client_id: string;
@@ -58,7 +59,7 @@ const SETTINGS_URL = (getSettingsURL());
 // https://redux-toolkit.js.org/rtk-query/usage/customizing-queries#performing-multiple-requests-with-a-single-query
 const extended = gtsApi.injectEndpoints({
 	endpoints: (build) => ({
-		verifyCredentials: build.query<any, void>({
+		verifyCredentials: build.query<Account, void>({
 			providesTags: (_res, error) =>
 				error == undefined ? ["Auth"] : [],
 			async queryFn(_arg, api, _extraOpts, fetchWithBQ) {

web/source/settings/lib/types/account.ts

@@ -53,8 +53,12 @@ export interface Account {
 	url: string,
 	avatar: string,
 	avatar_static: string,
+	avatar_description?: string,
+	avatar_media_id?: string,
 	header: string,
 	header_static: string,
+	header_description?: string,
+	header_media_id?: string,
 	followers_count: number,
 	following_count: number,
 	statuses_count: number,
@@ -68,7 +72,7 @@ export interface Account {
 }
 
 export interface AccountSource {
-	fields: any[];
+	fields: any;
 	follow_requests_count: number;
 	language: string;
 	note: string;

web/source/settings/lib/types/instance.ts

@@ -25,6 +25,7 @@ export interface InstanceV1 {
     description_text?:       string;
     short_description:      string;
     short_description_text?: string;
+    custom_css:             string;
     email:                  string;
     version:                string;
     debug?:                 boolean;

web/source/settings/style.css

@@ -442,6 +442,11 @@ section.with-sidebar > form {
 		max-width: 42rem;
 	}
 
+	.file-input-with-image-description {
+		max-width: 100%;
+		width: 100%;
+	}
+	
 	.overview {
 		display: flex;
 		flex-direction: column;

web/source/settings/views/admin/instance/settings.tsx

@@ -66,6 +66,10 @@ function InstanceSettingsForm({ data: instance }: InstanceSettingsFormProps) {
 			valueSelector: (s: InstanceV1) => s.description_text,
 			validator: (val: string) => val.length <= descLimit ? "" : `Instance description is ${val.length} characters; must be ${descLimit} characters or less`
 		}),
+		customCSS: useTextInput("custom_css", {
+			source: instance,
+			valueSelector: (s: InstanceV1) => s.custom_css
+		}),
 		terms: useTextInput("terms", {
 			source: instance,
 			// Select "raw" text version of parsed field for editing.
@@ -191,6 +195,15 @@ function InstanceSettingsForm({ data: instance }: InstanceSettingsFormProps) {
 				type="email"
 			/>
 
+			<TextArea
+				field={form.customCSS}
+				label={"Custom CSS"}
+				className="monospace"
+				rows={8}
+				autoCapitalize="none"
+				spellCheck="false"
+			/>
+
 			<MutationButton label="Save" result={result} disabled={false} />
 		</form>
 	);

web/source/settings/views/user/posts/index.tsx

@@ -20,7 +20,7 @@
 import React from "react";
 import { useVerifyCredentialsQuery } from "../../../lib/query/oauth";
 import Loading from "../../../components/loading";
-import { Error } from "../../../components/error";
+import { Error as ErrorC } from "../../../components/error";
 import BasicSettings from "./basic-settings";
 import InteractionPolicySettings from "./interaction-policy-settings";
 
@@ -38,7 +38,11 @@ export default function PostSettings() {
 	}
 
 	if (isError) {
-		return <Error error={error} />;
+		return <ErrorC error={error} />;
+	}
+
+	if (!account) {
+		return <ErrorC error={new Error("account was undefined")} />;
 	}
 
 	return (

web/source/settings/views/user/profile.tsx

@@ -45,6 +45,7 @@ import { useAccountThemesQuery } from "../../lib/query/user";
 import { useUpdateCredentialsMutation } from "../../lib/query/user";
 import { useVerifyCredentialsQuery } from "../../lib/query/oauth";
 import { useInstanceV1Query } from "../../lib/query/gts-api";
+import { Account } from "../../lib/types/account";
 
 export default function UserProfile() {
 	return (
@@ -55,7 +56,11 @@ export default function UserProfile() {
 	);
 }
 
-function UserProfileForm({ data: profile }) {
+interface UserProfileFormProps {
+	data: Account;
+}
+
+function UserProfileForm({ data: profile }: UserProfileFormProps) {
 	/*
 		User profile update form keys
 		- bool bot
@@ -132,6 +137,9 @@ function UserProfileForm({ data: profile }) {
 		}
 	});
 
+	const noAvatarSet = !profile.avatar_media_id;
+	const noHeaderSet = !profile.header_media_id;
+
 	return (
 		<form className="user-profile" onSubmit={submitForm}>
 			<h1>Profile</h1>
@@ -145,33 +153,37 @@ function UserProfileForm({ data: profile }) {
 					role={profile.role}
 				/>
 
-				<div className="file-input-with-image-description">
+				<fieldset className="file-input-with-image-description">
+					<legend>Header</legend>
 					<FileInput
-						label="Header"
+						label="Upload file"
 						field={form.header}
 						accept="image/png, image/jpeg, image/webp, image/gif"
 					/>
 					<TextInput
 						field={form.headerDescription}
-						label="Header image description"
+						label="Image description; only settable if not using default header"
 						placeholder="A green field with pink flowers."
 						autoCapitalize="sentences"
+						disabled={noHeaderSet && !form.header.value}
 					/>
-				</div>
+				</fieldset>
 				
-				<div className="file-input-with-image-description">
+				<fieldset className="file-input-with-image-description">
+					<legend>Avatar</legend>
 					<FileInput
-						label="Avatar (1:1 images look best)"
+						label="Upload file (1:1 images look best)"
 						field={form.avatar}
 						accept="image/png, image/jpeg, image/webp, image/gif"
 					/>
 					<TextInput
 						field={form.avatarDescription}
-						label="Avatar image description"
+						label="Image description; only settable if not using default avatar"
 						placeholder="A cute drawing of a smiling sloth."
 						autoCapitalize="sentences"
+						disabled={noAvatarSet && !form.avatar.value}
 					/>
-				</div>
+				</fieldset>
 
 				<div className="theme">
 					<div>