Merge commit '16c41e035bdd6e08927c950aeeb5332adbe8b6d5' into glitch-soc/merge-upstream

Conflicts:
- `lib/mastodon/version.rb`:
  Upstream bumped the Mastodon API version, glitch-soc has an extra glitch version.
  Bumped the Mastodon API version as upstream did.

app/controllers/activitypub/inboxes_controller.rb

@@ -26,9 +26,9 @@ class ActivityPub::InboxesController < ActivityPub::BaseController
   end
 
   def unknown_affected_account?
-    json = Oj.load(body, mode: :strict)
+    json = JSON.parse(body)
     json.is_a?(Hash) && %w(Delete Update).include?(json['type']) && json['actor'].present? && json['actor'] == value_or_id(json['object']) && !Account.exists?(uri: json['actor'])
-  rescue Oj::ParseError
+  rescue JSON::ParserError
     false
   end
 

app/controllers/api/v1/accounts_controller.rb

@@ -38,7 +38,7 @@ class Api::V1::AccountsController < Api::BaseController
 
     headers.merge!(response.headers)
 
-    self.response_body = Oj.dump(response.body)
+    self.response_body = response.body.to_json
     self.status        = response.status
   rescue ActiveRecord::RecordInvalid => e
     render json: ValidationErrorFormatter.new(e, 'account.username': :username, 'invite_request.text': :reason).as_json, status: 422

app/controllers/api/v1/donation_campaigns_controller.rb

@@ -35,7 +35,7 @@ class Api::V1::DonationCampaignsController < Api::BaseController
     return if key.blank?
 
     campaign = Rails.cache.read("donation_campaign:#{key}", raw: true)
-    Oj.load(campaign) if campaign.present?
+    JSON.parse(campaign) if campaign.present?
   end
 
   def save_to_cache!(campaign)
@@ -44,7 +44,7 @@ class Api::V1::DonationCampaignsController < Api::BaseController
     Rails.cache.write_multi(
       {
         request_key => campaign_key(campaign),
-        "donation_campaign:#{campaign_key(campaign)}" => Oj.dump(campaign),
+        "donation_campaign:#{campaign_key(campaign)}" => campaign.to_json,
       },
       expires_in: 1.hour,
       raw: true
@@ -57,7 +57,7 @@ class Api::V1::DonationCampaignsController < Api::BaseController
       url.query_values = { platform: 'web', seed: seed, locale: locale, environment: Rails.configuration.x.donation_campaigns.environment }.compact
 
       Request.new(:get, url.to_s).perform do |res|
-        return Oj.load(res.body_with_limit, mode: :strict) if res.code == 200
+        return JSON.parse(res.body_with_limit) if res.code == 200
       end
     end
   rescue *Mastodon::HTTP_CONNECTION_ERRORS, Oj::ParseError

app/controllers/api/v1/profiles_controller.rb

@@ -25,7 +25,9 @@ class Api::V1::ProfilesController < Api::BaseController
       :display_name,
       :note,
       :avatar,
+      :avatar_description,
       :header,
+      :header_description,
       :locked,
       :bot,
       :discoverable,

app/controllers/api/v1/statuses/pins_controller.rb

@@ -30,7 +30,7 @@ class Api::V1::Statuses::PinsController < Api::V1::Statuses::BaseController
       adapter: ActivityPub::Adapter
     ).as_json
 
-    ActivityPub::RawDistributionWorker.perform_async(Oj.dump(json), current_account.id)
+    ActivityPub::RawDistributionWorker.perform_async(json.to_json, current_account.id)
   end
 
   def distribute_remove_activity!
@@ -40,6 +40,6 @@ class Api::V1::Statuses::PinsController < Api::V1::Statuses::BaseController
       adapter: ActivityPub::Adapter
     ).as_json
 
-    ActivityPub::RawDistributionWorker.perform_async(Oj.dump(json), current_account.id)
+    ActivityPub::RawDistributionWorker.perform_async(json.to_json, current_account.id)
   end
 end

app/helpers/json_ld_helper.rb

@@ -309,7 +309,7 @@ module JsonLdHelper
   end
 
   def body_to_json(body, compare_id: nil)
-    json = body.is_a?(String) ? Oj.load(body, mode: :strict) : body
+    json = body.is_a?(String) ? JSON.parse(body) : body
 
     return if compare_id.present? && json['id'] != compare_id
 

app/javascript/mastodon/actions/compose_typed.ts

@@ -273,3 +273,7 @@ export const quoteComposeCancel = createAction('compose/quoteComposeCancel');
 export const setComposeQuotePolicy = createAction<ApiQuotePolicy>(
   'compose/setQuotePolicy',
 );
+
+export const setDragUploadEnabled = createAction<boolean>(
+  'compose/setDragUploadEnabled',
+);

app/javascript/mastodon/api/accounts.ts

@@ -67,5 +67,11 @@ export const apiGetFamiliarFollowers = (id: string) =>
 
 export const apiGetProfile = () => apiRequestGet<ApiProfileJSON>('v1/profile');
 
-export const apiPatchProfile = (params: ApiProfileUpdateParams) =>
+export const apiPatchProfile = (params: ApiProfileUpdateParams | FormData) =>
   apiRequestPatch<ApiProfileJSON>('v1/profile', params);
+
+export const apiDeleteProfileAvatar = () =>
+  apiRequestDelete('v1/profile/avatar');
+
+export const apiDeleteProfileHeader = () =>
+  apiRequestDelete('v1/profile/header');

app/javascript/mastodon/api_types/profile.ts

@@ -27,6 +27,8 @@ export interface ApiProfileJSON {
 export type ApiProfileUpdateParams = Partial<
   Pick<
     ApiProfileJSON,
+    | 'avatar_description'
+    | 'header_description'
     | 'display_name'
     | 'note'
     | 'locked'

app/javascript/mastodon/components/character_counter/index.tsx

@@ -26,6 +26,7 @@ export const CharacterCounter = polymorphicForwardRef<
       maxLength,
       as: Component = 'span',
       recommended = false,
+      className,
       ...props
     },
     ref,
@@ -39,6 +40,7 @@ export const CharacterCounter = polymorphicForwardRef<
         {...props}
         ref={ref}
         className={classNames(
+          className,
           classes.counter,
           currentLength > maxLength && !recommended && classes.counterError,
         )}

app/javascript/mastodon/components/details/details.stories.tsx

@@ -0,0 +1,29 @@
+import type { Meta, StoryObj } from '@storybook/react-vite';
+
+import { Details } from './index';
+
+const meta = {
+  component: Details,
+  title: 'Components/Details',
+  args: {
+    summary: 'Here is the summary title',
+    children: (
+      <p>
+        And here are the details that are hidden until you click the summary.
+      </p>
+    ),
+  },
+  render(props) {
+    return (
+      <div style={{ width: '400px' }}>
+        <Details {...props} />
+      </div>
+    );
+  },
+} satisfies Meta<typeof Details>;
+
+export default meta;
+
+type Story = StoryObj<typeof meta>;
+
+export const Plain: Story = {};

app/javascript/mastodon/components/details/index.tsx

@@ -0,0 +1,35 @@
+import { forwardRef } from 'react';
+import type { ComponentPropsWithoutRef, ReactNode } from 'react';
+
+import classNames from 'classnames';
+
+import ExpandArrowIcon from '@/material-icons/400-24px/expand_more.svg?react';
+
+import { Icon } from '../icon';
+
+import classes from './styles.module.scss';
+
+export const Details = forwardRef<
+  HTMLDetailsElement,
+  {
+    summary: ReactNode;
+    children: ReactNode;
+    className?: string;
+  } & ComponentPropsWithoutRef<'details'>
+>(({ summary, children, className, ...rest }, ref) => {
+  return (
+    <details
+      ref={ref}
+      className={classNames(classes.details, className)}
+      {...rest}
+    >
+      <summary>
+        {summary}
+        <Icon icon={ExpandArrowIcon} id='arrow' />
+      </summary>
+
+      {children}
+    </details>
+  );
+});
+Details.displayName = 'Details';

app/javascript/mastodon/components/details/styles.module.scss

@@ -0,0 +1,25 @@
+.details {
+  color: var(--color-text-secondary);
+  font-size: 13px;
+  margin-top: 8px;
+
+  summary {
+    cursor: pointer;
+    font-weight: 600;
+    list-style: none;
+    margin-bottom: 8px;
+    text-decoration: underline;
+    text-decoration-style: dotted;
+  }
+
+  :global(.icon) {
+    width: 1.4em;
+    height: 1.4em;
+    vertical-align: middle;
+    transition: transform 0.2s ease-in-out;
+  }
+
+  &[open] :global(.icon) {
+    transform: rotate(-180deg);
+  }
+}

app/javascript/mastodon/features/account_edit/components/image_edit.tsx

@@ -12,11 +12,9 @@ import { openModal } from '@/mastodon/actions/modal';
 import { Dropdown } from '@/mastodon/components/dropdown_menu';
 import { IconButton } from '@/mastodon/components/icon_button';
 import type { MenuItem } from '@/mastodon/models/dropdown_menu';
-import {
-  createAppSelector,
-  useAppDispatch,
-  useAppSelector,
-} from '@/mastodon/store';
+import type { ImageLocation } from '@/mastodon/reducers/slices/profile_edit';
+import { selectImageInfo } from '@/mastodon/reducers/slices/profile_edit';
+import { useAppDispatch, useAppSelector } from '@/mastodon/store';
 import AddIcon from '@/material-icons/400-24px/add.svg?react';
 import DeleteIcon from '@/material-icons/400-24px/delete.svg?react';
 import EditIcon from '@/material-icons/400-24px/edit.svg?react';
@@ -50,36 +48,15 @@ const messages = defineMessages({
   },
 });
 
-export type ImageLocation = 'avatar' | 'header';
-
-const selectImageInfo = createAppSelector(
-  [
-    (state) => state.profileEdit.profile,
-    (_, location: ImageLocation) => location,
-  ],
-  (profile, location) => {
-    if (!profile) {
-      return {
-        hasImage: false,
-        hasAlt: false,
-      };
-    }
-
-    return {
-      hasImage: !!profile[`${location}Static`],
-      hasAlt: !!profile[`${location}Description`],
-    };
-  },
-);
-
 export const AccountImageEdit: FC<{
   className?: string;
   location: ImageLocation;
 }> = ({ className, location }) => {
   const intl = useIntl();
-  const { hasAlt, hasImage } = useAppSelector((state) =>
+  const { alt, src } = useAppSelector((state) =>
     selectImageInfo(state, location),
   );
+  const hasAlt = !!alt;
   const dispatch = useAppDispatch();
 
   const handleModal = useCallback(
@@ -125,7 +102,7 @@ export const AccountImageEdit: FC<{
 
   const iconClassName = classNames(classes.imageButton, className);
 
-  if (!hasImage) {
+  if (!src) {
     return (
       <IconButton
         title={intl.formatMessage(messages.add)}

app/javascript/mastodon/features/account_edit/index.tsx

@@ -7,6 +7,7 @@ import { useHistory } from 'react-router-dom';
 
 import type { ModalType } from '@/mastodon/actions/modal';
 import { openModal } from '@/mastodon/actions/modal';
+import { AccountBio } from '@/mastodon/components/account_bio';
 import { Avatar } from '@/mastodon/components/avatar';
 import { Button } from '@/mastodon/components/button';
 import { DismissibleCallout } from '@/mastodon/components/callout/dismissible';
@@ -201,7 +202,11 @@ export const AccountEdit: FC = () => {
             />
           }
         >
-          <EmojiHTML htmlString={profile.bio} {...htmlHandlers} />
+          <AccountBio
+            showDropdown
+            accountId={profile.id}
+            className={classes.bio}
+          />
         </AccountEditSection>
 
         <AccountEditSection

app/javascript/mastodon/features/account_edit/modals/image_alt.tsx

@@ -1,11 +1,147 @@
-import type { FC } from 'react';
+import type { ChangeEventHandler, FC } from 'react';
+import { useCallback, useState } from 'react';
 
-import { DialogModal } from '../../ui/components/dialog_modal';
+import { FormattedMessage } from 'react-intl';
+
+import { CharacterCounter } from '@/mastodon/components/character_counter';
+import { Details } from '@/mastodon/components/details';
+import { TextAreaField } from '@/mastodon/components/form_fields';
+import { LoadingIndicator } from '@/mastodon/components/loading_indicator';
+import { patchProfile } from '@/mastodon/reducers/slices/profile_edit';
+import type { ImageLocation } from '@/mastodon/reducers/slices/profile_edit';
+import { useAppDispatch, useAppSelector } from '@/mastodon/store';
+
+import { ConfirmationModal } from '../../ui/components/confirmation_modals';
 import type { DialogModalProps } from '../../ui/components/dialog_modal';
-import type { ImageLocation } from '../components/image_edit';
+
+import classes from './styles.module.scss';
 
 export const ImageAltModal: FC<
   DialogModalProps & { location: ImageLocation }
-> = ({ onClose }) => {
-  return <DialogModal title='TODO' onClose={onClose} />;
+> = ({ onClose, location }) => {
+  const { profile, isPending } = useAppSelector((state) => state.profileEdit);
+
+  const initialAlt = profile?.[`${location}Description`];
+  const imageSrc = profile?.[`${location}Static`];
+
+  const [altText, setAltText] = useState(initialAlt ?? '');
+
+  const dispatch = useAppDispatch();
+  const handleSave = useCallback(() => {
+    void dispatch(
+      patchProfile({
+        [`${location}_description`]: altText,
+      }),
+    ).then(onClose);
+  }, [altText, dispatch, location, onClose]);
+
+  if (!imageSrc) {
+    return <LoadingIndicator />;
+  }
+
+  return (
+    <ConfirmationModal
+      title={
+        initialAlt ? (
+          <FormattedMessage
+            id='account_edit.image_alt_modal.edit_title'
+            defaultMessage='Edit alt text'
+          />
+        ) : (
+          <FormattedMessage
+            id='account_edit.image_alt_modal.add_title'
+            defaultMessage='Add alt text'
+          />
+        )
+      }
+      onClose={onClose}
+      onConfirm={handleSave}
+      confirm={
+        <FormattedMessage
+          id='account_edit.upload_modal.done'
+          defaultMessage='Done'
+        />
+      }
+      updating={isPending}
+    >
+      <div className={classes.wrapper}>
+        <ImageAltTextField
+          imageSrc={imageSrc}
+          altText={altText}
+          onChange={setAltText}
+        />
+      </div>
+    </ConfirmationModal>
+  );
+};
+
+export const ImageAltTextField: FC<{
+  imageSrc: string;
+  altText: string;
+  onChange: (altText: string) => void;
+}> = ({ imageSrc, altText, onChange }) => {
+  const altLimit = useAppSelector(
+    (state) =>
+      state.server.getIn(
+        ['server', 'configuration', 'media_attachments', 'description_limit'],
+        150,
+      ) as number,
+  );
+
+  const handleChange: ChangeEventHandler<HTMLTextAreaElement> = useCallback(
+    (event) => {
+      onChange(event.currentTarget.value);
+    },
+    [onChange],
+  );
+
+  return (
+    <>
+      <img src={imageSrc} alt='' className={classes.altImage} />
+
+      <div>
+        <TextAreaField
+          label={
+            <FormattedMessage
+              id='account_edit.image_alt_modal.text_label'
+              defaultMessage='Alt text'
+            />
+          }
+          hint={
+            <FormattedMessage
+              id='account_edit.image_alt_modal.text_hint'
+              defaultMessage='Alt text helps screen reader users to understand your content.'
+            />
+          }
+          onChange={handleChange}
+          value={altText}
+        />
+        <CharacterCounter
+          currentString={altText}
+          maxLength={altLimit}
+          className={classes.altCounter}
+        />
+      </div>
+
+      <Details
+        summary={
+          <FormattedMessage
+            id='account_edit.image_alt_modal.details_title'
+            defaultMessage='Tips: Alt text for profile photos'
+          />
+        }
+        className={classes.altHint}
+      >
+        <FormattedMessage
+          id='account_edit.image_alt_modal.details_content'
+          defaultMessage='DO: <ul> <li>Describe yourself as pictured</li> <li>Use third person language (e.g. “Alex” instead of “me”)</li> <li>Be succinct – a few words is often enough</li> </ul> DON’T: <ul> <li>Start with “Photo of” – it’s redundant for screen readers</li> </ul> EXAMPLE: <ul> <li>“Alex wearing a green shirt and glasses”</li> </ul>'
+          values={{
+            ul: (chunks) => <ul>{chunks}</ul>,
+            li: (chunks) => <li>{chunks}</li>,
+          }}
+          tagName='div'
+        />
+      </Details>
+    </>
+  );
 };

app/javascript/mastodon/features/account_edit/modals/image_delete.tsx

@@ -1,11 +1,48 @@
+import { useCallback } from 'react';
 import type { FC } from 'react';
 
+import { FormattedMessage } from 'react-intl';
+
+import { Button } from '@/mastodon/components/button';
+import { deleteImage } from '@/mastodon/reducers/slices/profile_edit';
+import type { ImageLocation } from '@/mastodon/reducers/slices/profile_edit';
+import { useAppDispatch, useAppSelector } from '@/mastodon/store';
+
 import { DialogModal } from '../../ui/components/dialog_modal';
 import type { DialogModalProps } from '../../ui/components/dialog_modal';
-import type { ImageLocation } from '../components/image_edit';
 
 export const ImageDeleteModal: FC<
   DialogModalProps & { location: ImageLocation }
-> = ({ onClose }) => {
-  return <DialogModal title='TODO' onClose={onClose} />;
+> = ({ onClose, location }) => {
+  const isPending = useAppSelector((state) => state.profileEdit.isPending);
+  const dispatch = useAppDispatch();
+  const handleDelete = useCallback(() => {
+    void dispatch(deleteImage({ location })).then(onClose);
+  }, [dispatch, location, onClose]);
+
+  return (
+    <DialogModal
+      onClose={onClose}
+      title={
+        <FormattedMessage
+          id='account_edit.image_delete_modal.title'
+          defaultMessage='Delete image?'
+        />
+      }
+      buttons={
+        <Button dangerous onClick={handleDelete} disabled={isPending}>
+          <FormattedMessage
+            id='account_edit.image_delete_modal.delete_button'
+            defaultMessage='Delete'
+          />
+        </Button>
+      }
+    >
+      <FormattedMessage
+        id='account_edit.image_delete_modal.confirm'
+        defaultMessage='Are you sure you want to delete this image? This action can’t be undone.'
+        tagName='p'
+      />
+    </DialogModal>
+  );
 };

app/javascript/mastodon/features/account_edit/modals/image_upload.tsx

@@ -1,11 +1,438 @@
-import type { FC } from 'react';
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
+import type { ChangeEventHandler, FC } from 'react';
+
+import { defineMessage, FormattedMessage, useIntl } from 'react-intl';
+
+import type { Area } from 'react-easy-crop';
+import Cropper from 'react-easy-crop';
+
+import { setDragUploadEnabled } from '@/mastodon/actions/compose_typed';
+import { Button } from '@/mastodon/components/button';
+import { RangeInput } from '@/mastodon/components/form_fields/range_input_field';
+import {
+  selectImageInfo,
+  uploadImage,
+} from '@/mastodon/reducers/slices/profile_edit';
+import type { ImageLocation } from '@/mastodon/reducers/slices/profile_edit';
+import { useAppDispatch, useAppSelector } from '@/mastodon/store';
 
 import { DialogModal } from '../../ui/components/dialog_modal';
 import type { DialogModalProps } from '../../ui/components/dialog_modal';
-import type { ImageLocation } from '../components/image_edit';
+
+import { ImageAltTextField } from './image_alt';
+import classes from './styles.module.scss';
+
+import 'react-easy-crop/react-easy-crop.css';
 
 export const ImageUploadModal: FC<
   DialogModalProps & { location: ImageLocation }
-> = ({ onClose }) => {
-  return <DialogModal title='TODO' onClose={onClose} />;
+> = ({ onClose, location }) => {
+  const { src: oldSrc } = useAppSelector((state) =>
+    selectImageInfo(state, location),
+  );
+  const hasImage = !!oldSrc;
+  const [step, setStep] = useState<'select' | 'crop' | 'alt'>('select');
+
+  // State for individual steps.
+  const [imageSrc, setImageSrc] = useState<string | null>(null);
+  const [imageBlob, setImageBlob] = useState<Blob | null>(null);
+
+  const handleFile = useCallback((file: File) => {
+    const reader = new FileReader();
+    reader.addEventListener('load', () => {
+      const result = reader.result;
+      if (typeof result === 'string' && result.length > 0) {
+        setImageSrc(result);
+        setStep('crop');
+      }
+    });
+    reader.readAsDataURL(file);
+  }, []);
+
+  const handleCrop = useCallback(
+    (crop: Area) => {
+      if (!imageSrc) {
+        setStep('select');
+        return;
+      }
+      void calculateCroppedImage(imageSrc, crop).then((blob) => {
+        setImageBlob(blob);
+        setStep('alt');
+      });
+    },
+    [imageSrc],
+  );
+
+  const dispatch = useAppDispatch();
+  const handleSave = useCallback(
+    (altText: string) => {
+      if (!imageBlob) {
+        setStep('crop');
+        return;
+      }
+      void dispatch(uploadImage({ location, imageBlob, altText })).then(
+        onClose,
+      );
+    },
+    [dispatch, imageBlob, location, onClose],
+  );
+
+  const handleCancel = useCallback(() => {
+    switch (step) {
+      case 'crop':
+        setImageSrc(null);
+        setStep('select');
+        break;
+      case 'alt':
+        setImageBlob(null);
+        setStep('crop');
+        break;
+      default:
+        onClose();
+    }
+  }, [onClose, step]);
+
+  return (
+    <DialogModal
+      title={
+        hasImage ? (
+          <FormattedMessage
+            id='account_edit.upload_modal.title_replace'
+            defaultMessage='Replace profile photo'
+          />
+        ) : (
+          <FormattedMessage
+            id='account_edit.upload_modal.title_add'
+            defaultMessage='Add profile photo'
+          />
+        )
+      }
+      onClose={onClose}
+      wrapperClassName={classes.uploadWrapper}
+      noCancelButton
+    >
+      {step === 'select' && (
+        <StepUpload location={location} onFile={handleFile} />
+      )}
+      {step === 'crop' && imageSrc && (
+        <StepCrop
+          src={imageSrc}
+          location={location}
+          onCancel={handleCancel}
+          onComplete={handleCrop}
+        />
+      )}
+      {step === 'alt' && imageBlob && (
+        <StepAlt
+          imageBlob={imageBlob}
+          onCancel={handleCancel}
+          onComplete={handleSave}
+        />
+      )}
+    </DialogModal>
+  );
 };
+
+// Taken from app/models/concerns/account/header.rb and app/models/concerns/account/avatar.rb
+const ALLOWED_MIME_TYPES = [
+  'image/jpeg',
+  'image/png',
+  'image/gif',
+  'image/webp',
+];
+
+const StepUpload: FC<{
+  location: ImageLocation;
+  onFile: (file: File) => void;
+}> = ({ location, onFile }) => {
+  const inputRef = useRef<HTMLInputElement>(null);
+  const handleUploadClick = useCallback(() => {
+    inputRef.current?.click();
+  }, []);
+
+  const handleFileChange: ChangeEventHandler<HTMLInputElement> = useCallback(
+    (event) => {
+      const file = event.currentTarget.files?.[0];
+      if (!file || !ALLOWED_MIME_TYPES.includes(file.type)) {
+        return;
+      }
+      onFile(file);
+    },
+    [onFile],
+  );
+
+  // Handle drag and drop
+  const [isDragging, setDragging] = useState(false);
+
+  const handleDragOver = useCallback((event: DragEvent) => {
+    event.preventDefault();
+    if (!event.dataTransfer?.types.includes('Files')) {
+      return;
+    }
+
+    const items = Array.from(event.dataTransfer.items);
+    if (
+      !items.some(
+        (item) =>
+          item.kind === 'file' && ALLOWED_MIME_TYPES.includes(item.type),
+      )
+    ) {
+      return;
+    }
+
+    setDragging(true);
+  }, []);
+  const handleDragDrop = useCallback(
+    (event: DragEvent) => {
+      event.preventDefault();
+      setDragging(false);
+
+      if (!event.dataTransfer?.files) {
+        return;
+      }
+
+      const file = Array.from(event.dataTransfer.files).find((f) =>
+        ALLOWED_MIME_TYPES.includes(f.type),
+      );
+      if (!file) {
+        return;
+      }
+
+      onFile(file);
+    },
+    [onFile],
+  );
+  const handleDragLeave = useCallback((event: DragEvent) => {
+    event.preventDefault();
+    setDragging(false);
+  }, []);
+
+  const dispatch = useAppDispatch();
+  useEffect(() => {
+    dispatch(setDragUploadEnabled(false));
+    document.addEventListener('dragover', handleDragOver);
+    document.addEventListener('drop', handleDragDrop);
+    document.addEventListener('dragleave', handleDragLeave);
+
+    return () => {
+      document.removeEventListener('dragover', handleDragOver);
+      document.removeEventListener('drop', handleDragDrop);
+      document.removeEventListener('dragleave', handleDragLeave);
+      dispatch(setDragUploadEnabled(true));
+    };
+  }, [handleDragLeave, handleDragDrop, handleDragOver, dispatch]);
+
+  if (isDragging) {
+    return (
+      <div className={classes.uploadStepSelect}>
+        <FormattedMessage
+          id='account_edit.upload_modal.step_upload.dragging'
+          defaultMessage='Drop to upload'
+          tagName='h2'
+        />
+      </div>
+    );
+  }
+
+  return (
+    <div className={classes.uploadStepSelect}>
+      <FormattedMessage
+        id='account_edit.upload_modal.step_upload.header'
+        defaultMessage='Choose an image'
+        tagName='h2'
+      />
+      <FormattedMessage
+        id='account_edit.upload_modal.step_upload.hint'
+        defaultMessage='WEBP, PNG, GIF or JPG format, up to {limit}MB.{br}Image will be scaled to {width}x{height}px.'
+        description='Guideline for avatar and header images.'
+        values={{
+          br: <br />,
+          limit: 8,
+          width: location === 'avatar' ? 400 : 1500,
+          height: location === 'avatar' ? 400 : 500,
+        }}
+        tagName='p'
+      />
+      <Button
+        onClick={handleUploadClick}
+        // eslint-disable-next-line jsx-a11y/no-autofocus -- This is the main input, so auto-focus on it.
+        autoFocus
+      >
+        <FormattedMessage
+          id='account_edit.upload_modal.step_upload.button'
+          defaultMessage='Browse files'
+        />
+      </Button>
+
+      <input
+        hidden
+        type='file'
+        ref={inputRef}
+        accept={ALLOWED_MIME_TYPES.join(',')}
+        onChange={handleFileChange}
+      />
+    </div>
+  );
+};
+
+const zoomLabel = defineMessage({
+  id: 'account_edit.upload_modal.step_crop.zoom',
+  defaultMessage: 'Zoom',
+});
+
+const StepCrop: FC<{
+  src: string;
+  location: ImageLocation;
+  onCancel: () => void;
+  onComplete: (crop: Area) => void;
+}> = ({ src, location, onCancel, onComplete }) => {
+  const [crop, setCrop] = useState({ x: 0, y: 0 });
+  const [croppedArea, setCroppedArea] = useState<Area | null>(null);
+  const [zoom, setZoom] = useState(1);
+  const intl = useIntl();
+
+  const handleZoomChange: ChangeEventHandler<HTMLInputElement> = useCallback(
+    (event) => {
+      setZoom(event.currentTarget.valueAsNumber);
+    },
+    [],
+  );
+  const handleCropComplete = useCallback((_: Area, croppedAreaPixels: Area) => {
+    setCroppedArea(croppedAreaPixels);
+  }, []);
+
+  const handleNext = useCallback(() => {
+    if (croppedArea) {
+      onComplete(croppedArea);
+    }
+  }, [croppedArea, onComplete]);
+
+  return (
+    <>
+      <div className={classes.cropContainer}>
+        <Cropper
+          image={src}
+          crop={crop}
+          zoom={zoom}
+          onCropChange={setCrop}
+          onCropComplete={handleCropComplete}
+          aspect={location === 'avatar' ? 1 : 3 / 1}
+          disableAutomaticStylesInjection
+        />
+      </div>
+
+      <div className={classes.cropActions}>
+        <RangeInput
+          min={1}
+          max={3}
+          step={0.1}
+          value={zoom}
+          onChange={handleZoomChange}
+          className={classes.zoomControl}
+          aria-label={intl.formatMessage(zoomLabel)}
+        />
+        <Button onClick={onCancel} secondary>
+          <FormattedMessage
+            id='account_edit.upload_modal.back'
+            defaultMessage='Back'
+          />
+        </Button>
+        <Button onClick={handleNext} disabled={!croppedArea}>
+          <FormattedMessage
+            id='account_edit.upload_modal.next'
+            defaultMessage='Next'
+          />
+        </Button>
+      </div>
+    </>
+  );
+};
+
+const StepAlt: FC<{
+  imageBlob: Blob;
+  onCancel: () => void;
+  onComplete: (altText: string) => void;
+}> = ({ imageBlob, onCancel, onComplete }) => {
+  const [altText, setAltText] = useState('');
+
+  const handleComplete = useCallback(() => {
+    onComplete(altText);
+  }, [altText, onComplete]);
+
+  const imageSrc = useMemo(() => URL.createObjectURL(imageBlob), [imageBlob]);
+
+  return (
+    <>
+      <ImageAltTextField
+        imageSrc={imageSrc}
+        altText={altText}
+        onChange={setAltText}
+      />
+
+      <div className={classes.cropActions}>
+        <Button onClick={onCancel} secondary>
+          <FormattedMessage
+            id='account_edit.upload_modal.back'
+            defaultMessage='Back'
+          />
+        </Button>
+
+        <Button onClick={handleComplete}>
+          <FormattedMessage
+            id='account_edit.upload_modal.done'
+            defaultMessage='Done'
+          />
+        </Button>
+      </div>
+    </>
+  );
+};
+
+async function calculateCroppedImage(
+  imageSrc: string,
+  crop: Area,
+): Promise<Blob> {
+  const image = await dataUriToImage(imageSrc);
+  const canvas = new OffscreenCanvas(crop.width, crop.height);
+  const ctx = canvas.getContext('2d');
+  if (!ctx) {
+    throw new Error('Failed to get canvas context');
+  }
+
+  ctx.imageSmoothingQuality = 'high';
+
+  // Draw the image
+  ctx.drawImage(
+    image,
+    crop.x,
+    crop.y,
+    crop.width,
+    crop.height,
+    0,
+    0,
+    crop.width,
+    crop.height,
+  );
+
+  return canvas.convertToBlob({
+    quality: 0.7,
+    type: 'image/jpeg',
+  });
+}
+
+function dataUriToImage(dataUri: string) {
+  return new Promise<HTMLImageElement>((resolve, reject) => {
+    const image = new Image();
+    image.addEventListener('load', () => {
+      resolve(image);
+    });
+    image.addEventListener('error', (event) => {
+      if (event.error instanceof Error) {
+        reject(event.error);
+      } else {
+        reject(new Error('Failed to load image'));
+      }
+    });
+    image.src = dataUri;
+  });
+}

app/javascript/mastodon/features/account_edit/modals/index.ts

@@ -1,7 +1,7 @@
 export * from './bio_modal';
 export * from './fields_modals';
 export * from './fields_reorder_modal';
-export * from './image_alt';
+export { ImageAltModal } from './image_alt';
 export * from './image_delete';
 export * from './image_upload';
 export * from './name_modal';

app/javascript/mastodon/features/account_edit/modals/styles.module.scss

@@ -80,6 +80,66 @@
   }
 }
 
+.uploadWrapper {
+  min-height: min(400px, 70vh);
+  justify-content: center;
+}
+
+.uploadStepSelect {
+  text-align: center;
+
+  h2 {
+    color: var(--color-text-primary);
+    font-size: 15px;
+    font-weight: 600;
+    margin-bottom: 4px;
+  }
+
+  button {
+    margin-top: 16px;
+  }
+}
+
+.cropContainer {
+  position: relative;
+  width: 100%;
+  height: 300px;
+  overflow: hidden;
+}
+
+.cropActions {
+  margin-top: 8px; // 16px gap from DialogModal, plus 8px = 24px to look like normal action buttons.
+  display: flex;
+  gap: 8px;
+  align-items: center;
+  justify-content: flex-end;
+
+  .zoomControl {
+    width: min(100%, 200px);
+    margin-right: auto;
+  }
+}
+
+.altImage {
+  max-height: 150px;
+  object-fit: contain;
+  align-self: flex-start;
+  border: 1px solid var(--color-border-primary);
+  border-radius: var(--avatar-border-radius);
+}
+
+.altCounter {
+  color: var(--color-text-secondary);
+}
+
+.altHint {
+  ul {
+    padding-left: 1em;
+    list-style: disc;
+    margin-bottom: 1em;
+  }
+}
+
 .verifiedSteps {
   font-size: 15px;
 
@@ -108,29 +168,3 @@
     }
   }
 }
-
-.details {
-  color: var(--color-text-secondary);
-  font-size: 13px;
-  margin-top: 8px;
-
-  summary {
-    cursor: pointer;
-    font-weight: 600;
-    list-style: none;
-    margin-bottom: 8px;
-    text-decoration: underline;
-    text-decoration-style: dotted;
-  }
-
-  :global(.icon) {
-    width: 1.4em;
-    height: 1.4em;
-    vertical-align: middle;
-    transition: transform 0.2s ease-in-out;
-  }
-
-  &[open] :global(.icon) {
-    transform: rotate(-180deg);
-  }
-}

app/javascript/mastodon/features/account_edit/modals/verified_modal.tsx

@@ -2,10 +2,9 @@ import type { FC } from 'react';
 
 import { FormattedMessage } from 'react-intl';
 
+import { Details } from '@/mastodon/components/details';
 import { CopyLinkField } from '@/mastodon/components/form_fields/copy_link_field';
-import { Icon } from '@/mastodon/components/icon';
 import { createAppSelector, useAppSelector } from '@/mastodon/store';
-import ExpandArrowIcon from '@/material-icons/400-24px/expand_more.svg?react';
 
 import type { DialogModalProps } from '../../ui/components/dialog_modal';
 import { DialogModal } from '../../ui/components/dialog_modal';
@@ -53,20 +52,20 @@ export const VerifiedModal: FC<DialogModalProps> = ({ onClose }) => {
             }
             value={`<a rel="me" href="${accountUrl}">Mastodon</a>`}
           />
-          <details className={classes.details}>
-            <summary>
+          <Details
+            summary={
               <FormattedMessage
                 id='account_edit.verified_modal.invisible_link.summary'
                 defaultMessage='How do I make the link invisible?'
               />
-              <Icon icon={ExpandArrowIcon} id='arrow' />
-            </summary>
+            }
+          >
             <FormattedMessage
               id='account_edit.verified_modal.invisible_link.details'
               defaultMessage='Add the link to your header. The important part is rel="me" which prevents impersonation on websites with user-generated content. You can even use a link tag in the header of the page instead of {tag}, but the HTML must be accessible without executing JavaScript.'
               values={{ tag: <code>&lt;a&gt;</code> }}
             />
-          </details>
+          </Details>
         </li>
         <li>
           <FormattedMessage

app/javascript/mastodon/features/account_edit/styles.module.scss

@@ -40,6 +40,19 @@
   }
 }
 
+.bio {
+  unicode-bidi: plaintext;
+
+  p:not(:last-child) {
+    margin-bottom: 20px;
+  }
+
+  a {
+    color: inherit;
+    text-decoration: underline;
+  }
+}
+
 .field {
   padding: 12px 0;
   display: flex;

app/javascript/mastodon/features/account_timeline/components/account_header.tsx

@@ -211,6 +211,7 @@ export const AccountHeader: React.FC<{
                   ))}
 
                 <AccountBio
+                  showDropdown
                   accountId={accountId}
                   className={classNames(
                     'account__header__content',

app/javascript/mastodon/features/ui/index.jsx

@@ -103,7 +103,11 @@ const mapStateToProps = state => ({
   layout: state.getIn(['meta', 'layout']),
   isComposing: state.getIn(['compose', 'is_composing']),
   hasComposingContents: state.getIn(['compose', 'text']).trim().length !== 0 || state.getIn(['compose', 'media_attachments']).size > 0 || state.getIn(['compose', 'poll']) !== null || state.getIn(['compose', 'quoted_status_id']) !== null,
-  canUploadMore: !state.getIn(['compose', 'media_attachments']).some(x => ['audio', 'video'].includes(x.get('type'))) && state.getIn(['compose', 'media_attachments']).size < state.getIn(['server', 'server', 'configuration', 'statuses', 'max_media_attachments']),
+  canUploadMore:
+    !state.getIn(['compose', 'media_attachments']).some(x => ['audio', 'video'].includes(x.get('type')))
+    && state.getIn(['compose', 'media_attachments']).size < state.getIn(['server', 'server', 'configuration', 'statuses', 'max_media_attachments']),
+  isUploadEnabled:
+    state.getIn(['compose', 'isDragDisabled']) !== true,
   firstLaunch: state.getIn(['settings', 'introductionVersion'], 0) < INTRODUCTION_VERSION,
   newAccount: !state.getIn(['accounts', me, 'note']) && !state.getIn(['accounts', me, 'bot']) && state.getIn(['accounts', me, 'following_count'], 0) === 0 && state.getIn(['accounts', me, 'statuses_count'], 0) === 0,
   username: state.getIn(['accounts', me, 'username']),
@@ -324,6 +328,9 @@ class UI extends PureComponent {
   };
 
   handleDragEnter = (e) => {
+    if (!this.props.isUploadEnabled) {
+      return;
+    }
     e.preventDefault();
 
     if (!this.dragTargets) {
@@ -340,6 +347,9 @@ class UI extends PureComponent {
   };
 
   handleDragOver = (e) => {
+    if (!this.props.isUploadEnabled) {
+      return;
+    }
     if (this.dataTransferIsText(e.dataTransfer)) return false;
 
     e.preventDefault();
@@ -355,6 +365,9 @@ class UI extends PureComponent {
   };
 
   handleDrop = (e) => {
+    if (!this.props.isUploadEnabled) {
+      return;
+    }
     if (this.dataTransferIsText(e.dataTransfer)) return;
 
     e.preventDefault();
@@ -429,7 +442,6 @@ class UI extends PureComponent {
     document.addEventListener('dragover', this.handleDragOver, false);
     document.addEventListener('drop', this.handleDrop, false);
     document.addEventListener('dragleave', this.handleDragLeave, false);
-    document.addEventListener('dragend', this.handleDragEnd, false);
 
     if ('serviceWorker' in  navigator) {
       navigator.serviceWorker.addEventListener('message', this.handleServiceWorkerPostMessage);
@@ -456,7 +468,6 @@ class UI extends PureComponent {
     document.removeEventListener('dragover', this.handleDragOver);
     document.removeEventListener('drop', this.handleDrop);
     document.removeEventListener('dragleave', this.handleDragLeave);
-    document.removeEventListener('dragend', this.handleDragEnd);
   }
 
   setRef = c => {

app/javascript/mastodon/locales/en.json

@@ -184,6 +184,15 @@
   "account_edit.field_reorder_modal.drag_start": "Picked up field \"{item}\".",
   "account_edit.field_reorder_modal.handle_label": "Drag field \"{item}\"",
   "account_edit.field_reorder_modal.title": "Rearrange fields",
+  "account_edit.image_alt_modal.add_title": "Add alt text",
+  "account_edit.image_alt_modal.details_content": "DO: <ul> <li>Describe yourself as pictured</li> <li>Use third person language (e.g. “Alex” instead of “me”)</li> <li>Be succinct – a few words is often enough</li> </ul> DON’T: <ul> <li>Start with “Photo of” – it’s redundant for screen readers</li> </ul> EXAMPLE: <ul> <li>“Alex wearing a green shirt and glasses”</li> </ul>",
+  "account_edit.image_alt_modal.details_title": "Tips: Alt text for profile photos",
+  "account_edit.image_alt_modal.edit_title": "Edit alt text",
+  "account_edit.image_alt_modal.text_hint": "Alt text helps screen reader users to understand your content.",
+  "account_edit.image_alt_modal.text_label": "Alt text",
+  "account_edit.image_delete_modal.confirm": "Are you sure you want to delete this image? This action can’t be undone.",
+  "account_edit.image_delete_modal.delete_button": "Delete",
+  "account_edit.image_delete_modal.title": "Delete image?",
   "account_edit.image_edit.add_button": "Add image",
   "account_edit.image_edit.alt_add_button": "Add alt text",
   "account_edit.image_edit.alt_edit_button": "Edit alt text",
@@ -203,6 +212,16 @@
   "account_edit.profile_tab.subtitle": "Customize the tabs on your profile and what they display.",
   "account_edit.profile_tab.title": "Profile tab settings",
   "account_edit.save": "Save",
+  "account_edit.upload_modal.back": "Back",
+  "account_edit.upload_modal.done": "Done",
+  "account_edit.upload_modal.next": "Next",
+  "account_edit.upload_modal.step_crop.zoom": "Zoom",
+  "account_edit.upload_modal.step_upload.button": "Browse files",
+  "account_edit.upload_modal.step_upload.dragging": "Drop to upload",
+  "account_edit.upload_modal.step_upload.header": "Choose an image",
+  "account_edit.upload_modal.step_upload.hint": "WEBP, PNG, GIF or JPG format, up to {limit}MB.{br}Image will be scaled to {width}x{height}px.",
+  "account_edit.upload_modal.title_add": "Add profile photo",
+  "account_edit.upload_modal.title_replace": "Replace profile photo",
   "account_edit.verified_modal.details": "Add credibility to your Mastodon profile by verifying links to personal websites. Here’s how it works:",
   "account_edit.verified_modal.invisible_link.details": "Add the link to your header. The important part is rel=\"me\" which prevents impersonation on websites with user-generated content. You can even use a link tag in the header of the page instead of {tag}, but the HTML must be accessible without executing JavaScript.",
   "account_edit.verified_modal.invisible_link.summary": "How do I make the link invisible?",

app/javascript/mastodon/reducers/compose.js

@@ -8,6 +8,7 @@ import {
   setComposeQuotePolicy,
   pasteLinkCompose,
   cancelPasteLinkCompose,
+  setDragUploadEnabled,
 } from '@/mastodon/actions/compose_typed';
 import { timelineDelete } from 'mastodon/actions/timelines_typed';
 
@@ -75,6 +76,7 @@ const initialState = ImmutableMap({
   is_submitting: false,
   is_changing_upload: false,
   is_uploading: false,
+  isDragDisabled: false,
   should_redirect_to_compose_page: false,
   progress: 0,
   isUploadingThumbnail: false,
@@ -132,6 +134,7 @@ function clearAll(state) {
     map.set('idempotencyKey', uuid());
     map.set('quoted_status_id', null);
     map.set('quote_policy', state.get('default_quote_policy'));
+    map.set('isDragDisabled', false);
   });
 }
 
@@ -359,6 +362,8 @@ export const composeReducer = (state = initialState, action) => {
     return action.meta.requestId === state.get('fetching_link') ? state.set('fetching_link', null) : state;
   } else if (cancelPasteLinkCompose.match(action)) {
     return state.set('fetching_link', null);
+  } else if (setDragUploadEnabled.match(action)) {
+    return state.set('isDragDisabled', !action.payload);
   }
 
   switch(action.type) {

app/javascript/mastodon/reducers/slices/profile_edit.ts

@@ -3,8 +3,11 @@ import { createSlice } from '@reduxjs/toolkit';
 
 import { debounce } from 'lodash';
 
+import { fetchAccount } from '@/mastodon/actions/accounts';
 import {
   apiDeleteFeaturedTag,
+  apiDeleteProfileAvatar,
+  apiDeleteProfileHeader,
   apiGetCurrentFeaturedTags,
   apiGetProfile,
   apiGetTagSuggestions,
@@ -109,6 +112,27 @@ const profileEditSlice = createSlice({
       state.isPending = false;
     });
 
+    builder.addCase(uploadImage.pending, (state) => {
+      state.isPending = true;
+    });
+    builder.addCase(uploadImage.rejected, (state) => {
+      state.isPending = false;
+    });
+    builder.addCase(uploadImage.fulfilled, (state, action) => {
+      state.profile = action.payload;
+      state.isPending = false;
+    });
+
+    builder.addCase(deleteImage.pending, (state) => {
+      state.isPending = true;
+    });
+    builder.addCase(deleteImage.rejected, (state) => {
+      state.isPending = false;
+    });
+    builder.addCase(deleteImage.fulfilled, (state) => {
+      state.isPending = false;
+    });
+
     builder.addCase(addFeaturedTag.pending, (state) => {
       state.isPending = true;
     });
@@ -220,7 +244,10 @@ export const fetchProfile = createDataLoadingThunk(
 export const patchProfile = createDataLoadingThunk(
   `${profileEditSlice.name}/patchProfile`,
   (params: Partial<ApiProfileUpdateParams>) => apiPatchProfile(params),
-  transformProfile,
+  (response, { dispatch }) => {
+    dispatch(fetchAccount(response.id));
+    return transformProfile(response);
+  },
   {
     useLoadingBar: false,
     condition(_, { getState }) {
@@ -229,6 +256,67 @@ export const patchProfile = createDataLoadingThunk(
   },
 );
 
+export type ImageLocation = 'avatar' | 'header';
+
+export const selectImageInfo = createAppSelector(
+  [
+    (state) => state.profileEdit.profile,
+    (_, location: ImageLocation) => location,
+  ],
+  (profile, location) => {
+    if (!profile) {
+      return {};
+    }
+
+    return {
+      src: profile[location],
+      static: profile[`${location}Static`],
+      alt: profile[`${location}Description`],
+    };
+  },
+);
+
+export const uploadImage = createDataLoadingThunk(
+  `${profileEditSlice.name}/uploadImage`,
+  (arg: { location: ImageLocation; imageBlob: Blob; altText: string }) => {
+    const formData = new FormData();
+    formData.append(arg.location, arg.imageBlob);
+    if (arg.altText) {
+      formData.append(`${arg.location}_description`, arg.altText);
+    }
+
+    return apiPatchProfile(formData);
+  },
+  (response, { dispatch }) => {
+    dispatch(fetchAccount(response.id));
+    return transformProfile(response);
+  },
+  {
+    useLoadingBar: false,
+  },
+);
+
+export const deleteImage = createDataLoadingThunk(
+  `${profileEditSlice.name}/deleteImage`,
+  (arg: { location: ImageLocation }) => {
+    if (arg.location === 'avatar') {
+      return apiDeleteProfileAvatar();
+    } else {
+      return apiDeleteProfileHeader();
+    }
+  },
+  async (_, { dispatch, getState }) => {
+    await dispatch(fetchProfile());
+    const accountId = getState().profileEdit.profile?.id;
+    if (accountId) {
+      dispatch(fetchAccount(accountId));
+    }
+  },
+  {
+    useLoadingBar: false,
+  },
+);
+
 export const selectFieldById = createAppSelector(
   [(state) => state.profileEdit.profile?.fields, (_, id?: string) => id],
   (fields, fieldId) => {

app/lib/access_token_extension.rb

@@ -24,6 +24,6 @@ module AccessTokenExtension
   end
 
   def push_to_streaming_api
-    redis.publish("timeline:access_token:#{id}", Oj.dump(event: :kill)) if revoked? || destroyed?
+    redis.publish("timeline:access_token:#{id}", { event: :kill }.to_json) if revoked? || destroyed?
   end
 end

app/lib/activitypub/activity/follow.rb

@@ -39,7 +39,7 @@ class ActivityPub::Activity::Follow < ActivityPub::Activity
   end
 
   def reject_follow_request!(target_account)
-    json = Oj.dump(serialize_payload(FollowRequest.new(account: @account, target_account: target_account, uri: @json['id']), ActivityPub::RejectFollowSerializer))
+    json = serialize_payload(FollowRequest.new(account: @account, target_account: target_account, uri: @json['id']), ActivityPub::RejectFollowSerializer).to_json
     ActivityPub::DeliveryWorker.perform_async(json, target_account.id, @account.inbox_url)
   end
 end

app/lib/activitypub/activity/quote_request.rb

@@ -31,7 +31,7 @@ class ActivityPub::Activity::QuoteRequest < ActivityPub::Activity
     status.quote.update!(activity_uri: @json['id'])
     status.quote.accept!
 
-    json = Oj.dump(serialize_payload(status.quote, ActivityPub::AcceptQuoteRequestSerializer))
+    json = serialize_payload(status.quote, ActivityPub::AcceptQuoteRequestSerializer).to_json
     ActivityPub::DeliveryWorker.perform_async(json, quoted_status.account_id, @account.inbox_url)
 
     # Ensure the user is notified
@@ -60,7 +60,7 @@ class ActivityPub::Activity::QuoteRequest < ActivityPub::Activity
       account: @account,
       activity_uri: @json['id']
     )
-    json = Oj.dump(serialize_payload(quote, ActivityPub::RejectQuoteRequestSerializer))
+    json = serialize_payload(quote, ActivityPub::RejectQuoteRequestSerializer).to_json
     ActivityPub::DeliveryWorker.perform_async(json, quoted_status.account_id, @account.inbox_url)
   end
 

app/lib/admin/metrics/dimension/software_versions_dimension.rb

@@ -80,7 +80,7 @@ class Admin::Metrics::Dimension::SoftwareVersionsDimension < Admin::Metrics::Dim
 
   def ffmpeg_version
     version_output = Terrapin::CommandLine.new(Rails.configuration.x.ffprobe_binary, '-show_program_version -v 0 -of json').run
-    version = Oj.load(version_output, mode: :strict, symbol_keys: true).dig(:program_version, :version)
+    version = JSON.parse(version_output, symbolize_names: true).dig(:program_version, :version)
 
     {
       key: 'ffmpeg',

app/lib/application_extension.rb

@@ -35,7 +35,7 @@ module ApplicationExtension
 
   def close_streaming_sessions(resource_owner = nil)
     # TODO: #28793 Combine into a single topic
-    payload = Oj.dump(event: :kill)
+    payload = { event: :kill }.to_json
     scope = access_tokens
     scope = scope.where(resource_owner_id: resource_owner.id) unless resource_owner.nil?
     scope.in_batches do |tokens|

app/lib/feed_manager.rb

@@ -92,7 +92,7 @@ class FeedManager
   def unpush_from_home(account, status, update: false)
     return false unless remove_from_feed(:home, account.id, status, aggregate_reblogs: account.user&.aggregates_reblogs?)
 
-    redis.publish("timeline:#{account.id}", Oj.dump(event: :delete, payload: status.id.to_s)) unless update
+    redis.publish("timeline:#{account.id}", { event: :delete, payload: status.id.to_s }.to_json) unless update
     true
   end
 
@@ -119,7 +119,7 @@ class FeedManager
   def unpush_from_list(list, status, update: false)
     return false unless remove_from_feed(:list, list.id, status, aggregate_reblogs: list.account.user&.aggregates_reblogs?)
 
-    redis.publish("timeline:list:#{list.id}", Oj.dump(event: :delete, payload: status.id.to_s)) unless update
+    redis.publish("timeline:list:#{list.id}", { event: :delete, payload: status.id.to_s }.to_json) unless update
     true
   end
 

app/lib/link_details_extractor.rb

@@ -101,7 +101,7 @@ class LinkDetailsExtractor
     end
 
     def json
-      @json ||= root_array(Oj.load(@data)).compact.find { |obj| SUPPORTED_TYPES.include?(obj['@type']) } || {}
+      @json ||= root_array(JSON.parse(@data)).compact.find { |obj| SUPPORTED_TYPES.include?(obj['@type']) } || {}
     end
   end
 
@@ -265,7 +265,7 @@ class LinkDetailsExtractor
       next unless structured_data.valid?
 
       structured_data
-    rescue Oj::ParseError, EncodingError
+    rescue JSON::ParserError, EncodingError
       Rails.logger.debug { "Invalid JSON-LD in #{@original_url}" }
       next
     end.first

app/lib/translation_service/deepl.rb

@@ -31,7 +31,7 @@ class TranslationService::DeepL < TranslationService
 
   def fetch_languages(type)
     request(:get, "/v2/languages?type=#{type}") do |res|
-      Oj.load(res.body_with_limit).map { |language| normalize_language(language['language']) }
+      JSON.parse(res.body_with_limit).map { |language| normalize_language(language['language']) }
     end
   end
 
@@ -68,7 +68,7 @@ class TranslationService::DeepL < TranslationService
   end
 
   def transform_response(json)
-    data = Oj.load(json, mode: :strict)
+    data = JSON.parse(json)
     raise UnexpectedResponseError unless data.is_a?(Hash)
 
     data['translations'].map do |translation|

app/lib/translation_service/libre_translate.rb

@@ -9,7 +9,7 @@ class TranslationService::LibreTranslate < TranslationService
   end
 
   def translate(texts, source_language, target_language)
-    body = Oj.dump(q: texts, source: source_language.presence || 'auto', target: target_language, format: 'html', api_key: @api_key)
+    body = { q: texts, source: source_language.presence || 'auto', target: target_language, format: 'html', api_key: @api_key }.to_json
     request(:post, '/translate', body: body) do |res|
       transform_response(res.body_with_limit, source_language)
     end
@@ -17,7 +17,7 @@ class TranslationService::LibreTranslate < TranslationService
 
   def languages
     request(:get, '/languages') do |res|
-      languages = Oj.load(res.body_with_limit).to_h do |language|
+      languages = JSON.parse(res.body_with_limit).to_h do |language|
         [language['code'], language['targets'].without(language['code'])]
       end
       languages[nil] = languages.values.flatten.uniq.sort
@@ -45,7 +45,7 @@ class TranslationService::LibreTranslate < TranslationService
   end
 
   def transform_response(json, source_language)
-    data = Oj.load(json, mode: :strict)
+    data = JSON.parse(json)
     raise UnexpectedResponseError unless data.is_a?(Hash)
 
     data['translatedText'].map.with_index do |text, index|

app/lib/user_settings_serializer.rb

@@ -6,7 +6,7 @@ class UserSettingsSerializer
       if value.blank?
         {}
       else
-        Oj.load(value, symbol_keys: true)
+        JSON.parse(value, symbolize_names: true)
       end
     end
 
@@ -14,6 +14,6 @@ class UserSettingsSerializer
   end
 
   def self.dump(value)
-    Oj.dump(value.as_json)
+    JSON.generate(value.as_json)
   end
 end

app/lib/video_metadata_extractor.rb

@@ -6,7 +6,7 @@ class VideoMetadataExtractor
 
   def initialize(path)
     @path     = path
-    @metadata = Oj.load(ffmpeg_command_output, mode: :strict, symbol_keys: true)
+    @metadata = JSON.parse(ffmpeg_command_output, symbolize_names: true)
 
     parse_metadata
   rescue Terrapin::ExitStatusError, Oj::ParseError

app/lib/webfinger.rb

@@ -12,7 +12,7 @@ class Webfinger
 
     def initialize(uri, body)
       @uri  = uri
-      @json = Oj.load(body, mode: :strict)
+      @json = JSON.parse(body)
 
       validate_response!
     end

app/lib/webhooks/payload_renderer.rb

@@ -58,7 +58,7 @@ class Webhooks::PayloadRenderer
   /iox
 
   def initialize(json)
-    @document = DocumentTraverser.new(Oj.load(json))
+    @document = DocumentTraverser.new(JSON.parse(json))
   end
 
   def render(template)

app/models/concerns/account/suspensions.rb

@@ -35,7 +35,7 @@ module Account::Suspensions
 
     # This terminates all connections for the given account with the streaming
     # server:
-    redis.publish("timeline:system:#{id}", Oj.dump(event: :kill)) if local?
+    redis.publish("timeline:system:#{id}", { event: :kill }.to_json) if local?
   end
 
   def unsuspend!

app/models/custom_filter.rb

@@ -115,8 +115,8 @@ class CustomFilter < ApplicationRecord
     @should_invalidate_cache = false
 
     Rails.cache.delete("filters:v3:#{account_id}")
-    redis.publish("timeline:#{account_id}", Oj.dump(event: :filters_changed))
-    redis.publish("timeline:system:#{account_id}", Oj.dump(event: :filters_changed))
+    redis.publish("timeline:#{account_id}", { event: :filters_changed }.to_json)
+    redis.publish("timeline:system:#{account_id}", { event: :filters_changed }.to_json)
   end
 
   private

app/models/relay.rb

@@ -31,7 +31,7 @@ class Relay < ApplicationRecord
 
   def enable!
     activity_id = ActivityPub::TagManager.instance.generate_uri_for(nil)
-    payload     = Oj.dump(follow_activity(activity_id))
+    payload     = follow_activity(activity_id).to_json
 
     update!(state: :pending, follow_activity_id: activity_id)
     reset_delivery_tracker
@@ -40,7 +40,7 @@ class Relay < ApplicationRecord
 
   def disable!
     activity_id = ActivityPub::TagManager.instance.generate_uri_for(nil)
-    payload     = Oj.dump(unfollow_activity(activity_id))
+    payload     = unfollow_activity(activity_id).to_json
 
     update!(state: :idle, follow_activity_id: nil)
     reset_delivery_tracker

app/models/user.rb

@@ -173,7 +173,7 @@ class User < ApplicationRecord
 
     # This terminates all connections for the given account with the streaming
     # server:
-    redis.publish("timeline:system:#{account.id}", Oj.dump(event: :kill))
+    redis.publish("timeline:system:#{account.id}", { event: :kill }.to_json)
   end
 
   def enable!
@@ -347,7 +347,7 @@ class User < ApplicationRecord
       # Revoke each access token for the Streaming API, since `update_all``
       # doesn't trigger ActiveRecord Callbacks:
       # TODO: #28793 Combine into a single topic
-      payload = Oj.dump(event: :kill)
+      payload = { event: :kill }.to_json
       redis.pipelined do |pipeline|
         batch.ids.each do |id|
           pipeline.publish("timeline:access_token:#{id}", payload)

app/services/activitypub/process_collection_service.rb

@@ -6,7 +6,7 @@ class ActivityPub::ProcessCollectionService < BaseService
 
   def call(body, actor, **options)
     @account = actor
-    @json    = original_json = Oj.load(body, mode: :strict)
+    @json    = original_json = JSON.parse(body)
     @options = options
 
     return unless @json.is_a?(Hash)

app/services/activitypub/synchronize_followers_service.rb

@@ -62,7 +62,7 @@ class ActivityPub::SynchronizeFollowersService < BaseService
   end
 
   def build_undo_follow_json(follow)
-    Oj.dump(serialize_payload(follow, ActivityPub::UndoFollowSerializer))
+    serialize_payload(follow, ActivityPub::UndoFollowSerializer).to_json
   end
 
   # Only returns true if the whole collection has been processed

app/services/after_block_domain_from_account_service.rb

@@ -54,7 +54,7 @@ class AfterBlockDomainFromAccountService < BaseService
 
     return unless follow.account.activitypub?
 
-    ActivityPub::DeliveryWorker.perform_async(Oj.dump(serialize_payload(follow, ActivityPub::RejectFollowSerializer)), @account.id, follow.account.inbox_url)
+    ActivityPub::DeliveryWorker.perform_async(serialize_payload(follow, ActivityPub::RejectFollowSerializer).to_json, @account.id, follow.account.inbox_url)
   end
 
   def notify_of_severed_relationships!

app/services/authorize_follow_service.rb

@@ -22,6 +22,6 @@ class AuthorizeFollowService < BaseService
   end
 
   def build_json(follow_request)
-    Oj.dump(serialize_payload(follow_request, ActivityPub::AcceptFollowSerializer))
+    serialize_payload(follow_request, ActivityPub::AcceptFollowSerializer).to_json
   end
 end

app/services/backup_service.rb

@@ -23,7 +23,7 @@ class BackupService < BaseService
     skeleton = serialize(collection_presenter, ActivityPub::CollectionSerializer)
     skeleton[:@context] = full_context
     skeleton[:orderedItems] = ['!PLACEHOLDER!']
-    skeleton = Oj.dump(skeleton)
+    skeleton = JSON.generate(skeleton)
     prepend, append = skeleton.split('"!PLACEHOLDER!"')
     add_comma = false
 
@@ -44,7 +44,7 @@ class BackupService < BaseService
           end
         end
 
-        Oj.dump(item)
+        JSON.generate(item)
       end.join(','))
 
       GC.start
@@ -107,7 +107,7 @@ class BackupService < BaseService
     download_to_zip(zipfile, account.avatar, "avatar#{File.extname(account.avatar.path)}") if account.avatar.exists?
     download_to_zip(zipfile, account.header, "header#{File.extname(account.header.path)}") if account.header.exists?
 
-    json = Oj.dump(actor)
+    json = JSON.generate(actor)
 
     zipfile.get_output_stream('actor.json') do |io|
       io.write(json)
@@ -118,7 +118,7 @@ class BackupService < BaseService
     skeleton = serialize(ActivityPub::CollectionPresenter.new(id: 'likes.json', type: :ordered, size: 0, items: []), ActivityPub::CollectionSerializer)
     skeleton.delete(:totalItems)
     skeleton[:orderedItems] = ['!PLACEHOLDER!']
-    skeleton = Oj.dump(skeleton)
+    skeleton = JSON.generate(skeleton)
     prepend, append = skeleton.split('"!PLACEHOLDER!"')
 
     zipfile.get_output_stream('likes.json') do |io|
@@ -131,7 +131,7 @@ class BackupService < BaseService
         add_comma = true
 
         io.write(statuses.map do |status|
-          Oj.dump(ActivityPub::TagManager.instance.uri_for(status))
+          JSON.generate(ActivityPub::TagManager.instance.uri_for(status))
         end.join(','))
 
         GC.start
@@ -145,7 +145,7 @@ class BackupService < BaseService
     skeleton = serialize(ActivityPub::CollectionPresenter.new(id: 'bookmarks.json', type: :ordered, size: 0, items: []), ActivityPub::CollectionSerializer)
     skeleton.delete(:totalItems)
     skeleton[:orderedItems] = ['!PLACEHOLDER!']
-    skeleton = Oj.dump(skeleton)
+    skeleton = JSON.generate(skeleton)
     prepend, append = skeleton.split('"!PLACEHOLDER!"')
 
     zipfile.get_output_stream('bookmarks.json') do |io|
@@ -157,7 +157,7 @@ class BackupService < BaseService
         add_comma = true
 
         io.write(statuses.map do |status|
-          Oj.dump(ActivityPub::TagManager.instance.uri_for(status))
+          JSON.generate(ActivityPub::TagManager.instance.uri_for(status))
         end.join(','))
 
         GC.start

app/services/batched_remove_status_service.rb

@@ -85,7 +85,7 @@ class BatchedRemoveStatusService < BaseService
   def unpush_from_public_timelines(status, pipeline)
     return unless status.public_visibility? && status.id > @status_id_cutoff
 
-    payload = Oj.dump(event: :delete, payload: status.id.to_s)
+    payload = { event: :delete, payload: status.id.to_s }.to_json
 
     pipeline.publish('timeline:public', payload)
     pipeline.publish(status.local? ? 'timeline:public:local' : 'timeline:public:remote', payload)

app/services/block_service.rb

@@ -26,6 +26,6 @@ class BlockService < BaseService
   end
 
   def build_json(block)
-    Oj.dump(serialize_payload(block, ActivityPub::BlockSerializer))
+    serialize_payload(block, ActivityPub::BlockSerializer).to_json
   end
 end

app/services/create_featured_tag_service.rb

@@ -26,6 +26,6 @@ class CreateFeaturedTagService < BaseService
   private
 
   def build_json(featured_tag)
-    Oj.dump(serialize_payload(featured_tag, ActivityPub::AddHashtagSerializer, signer: @account))
+    serialize_payload(featured_tag, ActivityPub::AddHashtagSerializer, signer: @account).to_json
   end
 end

app/services/delete_account_service.rb

@@ -114,7 +114,7 @@ class DeleteAccountService < BaseService
     # we have to force it to unfollow them.
 
     ActivityPub::DeliveryWorker.push_bulk(Follow.where(account: @account)) do |follow|
-      [Oj.dump(serialize_payload(follow, ActivityPub::RejectFollowSerializer)), follow.target_account_id, @account.inbox_url]
+      [serialize_payload(follow, ActivityPub::RejectFollowSerializer).to_json, follow.target_account_id, @account.inbox_url]
     end
   end
 
@@ -126,7 +126,7 @@ class DeleteAccountService < BaseService
     # if the remote account gets un-suspended.
 
     ActivityPub::DeliveryWorker.push_bulk(Follow.where(target_account: @account)) do |follow|
-      [Oj.dump(serialize_payload(follow, ActivityPub::UndoFollowSerializer)), follow.account_id, @account.inbox_url]
+      [serialize_payload(follow, ActivityPub::UndoFollowSerializer).to_json, follow.account_id, @account.inbox_url]
     end
   end
 
@@ -285,7 +285,7 @@ class DeleteAccountService < BaseService
   end
 
   def delete_actor_json
-    @delete_actor_json ||= Oj.dump(serialize_payload(@account, ActivityPub::DeleteActorSerializer, signer: @account, always_sign: true))
+    @delete_actor_json ||= serialize_payload(@account, ActivityPub::DeleteActorSerializer, signer: @account, always_sign: true).to_json
   end
 
   def delivery_inboxes

app/services/fan_out_on_write_service.rb

@@ -179,10 +179,10 @@ class FanOutOnWriteService < BaseService
   end
 
   def anonymous_payload
-    @anonymous_payload ||= Oj.dump(
+    @anonymous_payload ||= JSON.generate({
       event: update? ? :'status.update' : :update,
-      payload: rendered_status
-    )
+      payload: rendered_status,
+    }.as_json)
   end
 
   def rendered_status

app/services/favourite_service.rb

@@ -42,6 +42,6 @@ class FavouriteService < BaseService
   end
 
   def build_json(favourite)
-    Oj.dump(serialize_payload(favourite, ActivityPub::LikeSerializer))
+    serialize_payload(favourite, ActivityPub::LikeSerializer).to_json
   end
 end

app/services/follow_service.rb

@@ -90,7 +90,7 @@ class FollowService < BaseService
   end
 
   def build_json(follow_request)
-    Oj.dump(serialize_payload(follow_request, ActivityPub::FollowSerializer))
+    serialize_payload(follow_request, ActivityPub::FollowSerializer).to_json
   end
 
   def follow_options

app/services/notify_service.rb

@@ -259,7 +259,7 @@ class NotifyService < BaseService
   end
 
   def push_to_streaming_api!
-    redis.publish("timeline:#{@recipient.id}:notifications", Oj.dump(event: :notification, payload: InlineRenderer.render(@notification, @recipient, :notification)))
+    redis.publish("timeline:#{@recipient.id}:notifications", { event: :notification, payload: InlineRenderer.render(@notification, @recipient, :notification) }.to_json)
   end
 
   def subscribed_to_streaming_api?

app/services/reject_follow_service.rb

@@ -17,6 +17,6 @@ class RejectFollowService < BaseService
   end
 
   def build_json(follow_request)
-    Oj.dump(serialize_payload(follow_request, ActivityPub::RejectFollowSerializer))
+    serialize_payload(follow_request, ActivityPub::RejectFollowSerializer).to_json
   end
 end

app/services/remove_domains_from_followers_service.rb

@@ -18,6 +18,6 @@ class RemoveDomainsFromFollowersService < BaseService
   end
 
   def build_json(follow)
-    Oj.dump(serialize_payload(follow, ActivityPub::RejectFollowSerializer))
+    serialize_payload(follow, ActivityPub::RejectFollowSerializer).to_json
   end
 end

app/services/remove_featured_tag_service.rb

@@ -26,6 +26,6 @@ class RemoveFeaturedTagService < BaseService
   private
 
   def build_json(featured_tag)
-    Oj.dump(serialize_payload(featured_tag, ActivityPub::RemoveHashtagSerializer, signer: @account))
+    serialize_payload(featured_tag, ActivityPub::RemoveHashtagSerializer, signer: @account).to_json
   end
 end

app/services/remove_from_followers_service.rb

@@ -18,6 +18,6 @@ class RemoveFromFollowersService < BaseService
   end
 
   def build_json(follow)
-    Oj.dump(serialize_payload(follow, ActivityPub::RejectFollowSerializer))
+    serialize_payload(follow, ActivityPub::RejectFollowSerializer).to_json
   end
 end

app/services/remove_status_service.rb

@@ -14,7 +14,7 @@ class RemoveStatusService < BaseService
   # @option  [Boolean] :original_removed
   # @option  [Boolean] :skip_streaming
   def call(status, **options)
-    @payload  = Oj.dump(event: :delete, payload: status.id.to_s)
+    @payload  = { event: :delete, payload: status.id.to_s }.to_json
     @status   = status
     @account  = status.account
     @options  = options
@@ -105,7 +105,7 @@ class RemoveStatusService < BaseService
   end
 
   def signed_activity_json
-    @signed_activity_json ||= Oj.dump(serialize_payload(@status, @status.reblog? ? ActivityPub::UndoAnnounceSerializer : ActivityPub::DeleteNoteSerializer, signer: @account, always_sign: true))
+    @signed_activity_json ||= serialize_payload(@status, @status.reblog? ? ActivityPub::UndoAnnounceSerializer : ActivityPub::DeleteNoteSerializer, signer: @account, always_sign: true).to_json
   end
 
   def remove_reblogs

app/services/report_service.rb

@@ -98,7 +98,7 @@ class ReportService < BaseService
   end
 
   def payload
-    Oj.dump(serialize_payload(@report, ActivityPub::FlagSerializer, account: some_local_account))
+    serialize_payload(@report, ActivityPub::FlagSerializer, account: some_local_account).to_json
   end
 
   def some_local_account

app/services/revoke_collection_item_service.rb

@@ -19,6 +19,6 @@ class RevokeCollectionItemService < BaseService
   end
 
   def signed_activity_json
-    @signed_activity_json ||= Oj.dump(serialize_payload(@collection_item, ActivityPub::DeleteFeatureAuthorizationSerializer, signer: @account, always_sign: true))
+    @signed_activity_json ||= serialize_payload(@collection_item, ActivityPub::DeleteFeatureAuthorizationSerializer, signer: @account, always_sign: true).to_json
   end
 end

app/services/revoke_quote_service.rb

@@ -39,6 +39,6 @@ class RevokeQuoteService < BaseService
   end
 
   def signed_activity_json
-    @signed_activity_json ||= Oj.dump(serialize_payload(@quote, ActivityPub::DeleteQuoteAuthorizationSerializer, signer: @account, always_sign: true, force_approval_id: true))
+    @signed_activity_json ||= serialize_payload(@quote, ActivityPub::DeleteQuoteAuthorizationSerializer, signer: @account, always_sign: true, force_approval_id: true).to_json
   end
 end

app/services/software_update_check_service.rb

@@ -20,7 +20,7 @@ class SoftwareUpdateCheckService < BaseService
 
   def fetch_update_notices
     Request.new(:get, "#{api_url}?version=#{version}").add_headers('Accept' => 'application/json', 'User-Agent' => 'Mastodon update checker').perform do |res|
-      return Oj.load(res.body_with_limit, mode: :strict) if res.code == 200
+      return JSON.parse(res.body_with_limit) if res.code == 200
     end
   rescue *Mastodon::HTTP_CONNECTION_ERRORS, Oj::ParseError
     nil

app/services/suspend_account_service.rb

@@ -34,7 +34,7 @@ class SuspendAccountService < BaseService
 
     Follow.where(account: @account).find_in_batches do |follows|
       ActivityPub::DeliveryWorker.push_bulk(follows) do |follow|
-        [Oj.dump(serialize_payload(follow, ActivityPub::RejectFollowSerializer)), follow.target_account_id, @account.inbox_url]
+        [serialize_payload(follow, ActivityPub::RejectFollowSerializer).to_json, follow.target_account_id, @account.inbox_url]
       end
 
       follows.each(&:destroy)
@@ -72,6 +72,6 @@ class SuspendAccountService < BaseService
   end
 
   def signed_activity_json
-    @signed_activity_json ||= Oj.dump(serialize_payload(@account, ActivityPub::UpdateActorSerializer, signer: @account))
+    @signed_activity_json ||= serialize_payload(@account, ActivityPub::UpdateActorSerializer, signer: @account).to_json
   end
 end

app/services/unblock_service.rb

@@ -18,6 +18,6 @@ class UnblockService < BaseService
   end
 
   def build_json(unblock)
-    Oj.dump(serialize_payload(unblock, ActivityPub::UndoBlockSerializer))
+    serialize_payload(unblock, ActivityPub::UndoBlockSerializer).to_json
   end
 end

app/services/unfavourite_service.rb

@@ -18,6 +18,6 @@ class UnfavouriteService < BaseService
   end
 
   def build_json(favourite)
-    Oj.dump(serialize_payload(favourite, ActivityPub::UndoLikeSerializer))
+    serialize_payload(favourite, ActivityPub::UndoLikeSerializer).to_json
   end
 end

app/services/unfollow_service.rb

@@ -68,10 +68,10 @@ class UnfollowService < BaseService
   end
 
   def build_json(follow)
-    Oj.dump(serialize_payload(follow, ActivityPub::UndoFollowSerializer))
+    serialize_payload(follow, ActivityPub::UndoFollowSerializer).to_json
   end
 
   def build_reject_json(follow)
-    Oj.dump(serialize_payload(follow, ActivityPub::RejectFollowSerializer))
+    serialize_payload(follow, ActivityPub::RejectFollowSerializer).to_json
   end
 end

app/services/unsuspend_account_service.rb

@@ -63,6 +63,6 @@ class UnsuspendAccountService < BaseService
   end
 
   def signed_activity_json
-    @signed_activity_json ||= Oj.dump(serialize_payload(@account, ActivityPub::UpdateActorSerializer, signer: @account))
+    @signed_activity_json ||= serialize_payload(@account, ActivityPub::UpdateActorSerializer, signer: @account).to_json
   end
 end

app/services/vote_service.rb

@@ -65,7 +65,7 @@ class VoteService < BaseService
   end
 
   def build_json(vote)
-    Oj.dump(serialize_payload(vote, ActivityPub::VoteSerializer))
+    serialize_payload(vote, ActivityPub::VoteSerializer).to_json
   end
 
   def increment_voters_count!

app/services/webhook_service.rb

@@ -17,6 +17,8 @@ class WebhookService < BaseService
   end
 
   def serialize_event
-    Oj.dump(ActiveModelSerializers::SerializableResource.new(@event, serializer: REST::Admin::WebhookEventSerializer, scope: nil, scope_name: :current_user).as_json)
+    ActiveModelSerializers::SerializableResource
+      .new(@event, serializer: REST::Admin::WebhookEventSerializer, scope: nil, scope_name: :current_user)
+      .to_json
   end
 end

app/validators/reaction_validator.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class ReactionValidator < ActiveModel::Validator
-  SUPPORTED_EMOJIS = Oj.load_file(Rails.root.join('app', 'javascript', 'mastodon', 'features', 'emoji', 'emoji_map.json').to_s).keys.freeze
+  SUPPORTED_EMOJIS = JSON.load_file(Rails.root.join('app', 'javascript', 'mastodon', 'features', 'emoji', 'emoji_map.json').to_s).keys.freeze
 
   LIMIT = 8
 

app/views/shared/_web_app.html.haml

@@ -8,7 +8,7 @@
   = render_initial_state
   = flavoured_vite_typescript_tag 'application.ts', crossorigin: 'anonymous'
 
-.notranslate.app-holder#mastodon{ data: { props: Oj.dump(default_props) } }
+.notranslate.app-holder#mastodon{ data: { props: default_props.to_json } }
   %noscript
     = image_tag frontend_asset_path('images/logo.svg'), alt: 'Mastodon'
 

app/views/shares/show.html.haml

@@ -2,4 +2,4 @@
   = render_initial_state
   = flavoured_vite_typescript_tag 'share.tsx', crossorigin: 'anonymous'
 
-#mastodon-compose{ data: { props: Oj.dump(default_props) } }
+#mastodon-compose{ data: { props: default_props.to_json } }

app/views/statuses/embed.html.haml

@@ -1 +1 @@
-#mastodon-status{ data: { props: Oj.dump(default_props.merge(id: @status.id.to_s)) } }
+#mastodon-status{ data: { props: default_props.merge(id: @status.id.to_s).to_json } }

app/workers/activitypub/distribute_poll_update_worker.rb

@@ -43,7 +43,7 @@ class ActivityPub::DistributePollUpdateWorker
   end
 
   def payload
-    @payload ||= Oj.dump(serialize_payload(@status, ActivityPub::UpdatePollSerializer, signer: @account))
+    @payload ||= serialize_payload(@status, ActivityPub::UpdatePollSerializer, signer: @account).to_json
   end
 
   def relay!

app/workers/activitypub/distribution_worker.rb

@@ -24,7 +24,7 @@ class ActivityPub::DistributionWorker < ActivityPub::RawDistributionWorker
   end
 
   def payload
-    @payload ||= Oj.dump(serialize_payload(@status, activity_serializer, serializer_options.merge(signer: @account)))
+    @payload ||= serialize_payload(@status, activity_serializer, serializer_options.merge(signer: @account)).to_json
   end
 
   def activity_serializer

app/workers/activitypub/feature_request_worker.rb

@@ -17,6 +17,6 @@ class ActivityPub::FeatureRequestWorker < ActivityPub::RawDistributionWorker
   end
 
   def payload
-    @payload ||= Oj.dump(serialize_payload(@collection_item, ActivityPub::FeatureRequestSerializer, signer: @account))
+    @payload ||= serialize_payload(@collection_item, ActivityPub::FeatureRequestSerializer, signer: @account).to_json
   end
 end

app/workers/activitypub/move_distribution_worker.rb

@@ -28,6 +28,6 @@ class ActivityPub::MoveDistributionWorker
   end
 
   def signed_payload
-    @signed_payload ||= Oj.dump(serialize_payload(@migration, ActivityPub::MoveSerializer, signer: @account))
+    @signed_payload ||= serialize_payload(@migration, ActivityPub::MoveSerializer, signer: @account).to_json
   end
 end

app/workers/activitypub/quote_request_worker.rb

@@ -17,6 +17,6 @@ class ActivityPub::QuoteRequestWorker < ActivityPub::RawDistributionWorker
   end
 
   def payload
-    @payload ||= Oj.dump(serialize_payload(@quote, ActivityPub::QuoteRequestSerializer, signer: @account, allow_post_inlining: true))
+    @payload ||= serialize_payload(@quote, ActivityPub::QuoteRequestSerializer, signer: @account, allow_post_inlining: true).to_json
   end
 end

app/workers/activitypub/update_distribution_worker.rb

@@ -23,6 +23,6 @@ class ActivityPub::UpdateDistributionWorker < ActivityPub::RawDistributionWorker
   end
 
   def payload
-    @payload ||= Oj.dump(serialize_payload(@account, ActivityPub::UpdateActorSerializer, signer: @account, sign_with: @options[:sign_with]))
+    @payload ||= serialize_payload(@account, ActivityPub::UpdateActorSerializer, signer: @account, sign_with: @options[:sign_with]).to_json
   end
 end

app/workers/publish_announcement_reaction_worker.rb

@@ -11,7 +11,7 @@ class PublishAnnouncementReactionWorker
     reaction ||= announcement.announcement_reactions.new(name: name)
 
     payload = InlineRenderer.render(reaction, nil, :reaction).tap { |h| h[:announcement_id] = announcement_id.to_s }
-    payload = Oj.dump(event: :'announcement.reaction', payload: payload)
+    payload = { event: :'announcement.reaction', payload: payload }
 
     FeedManager.instance.with_active_accounts do |account|
       redis.publish("timeline:#{account.id}", payload) if redis.exists?("subscribed:timeline:#{account.id}")

app/workers/publish_scheduled_announcement_worker.rb

@@ -12,7 +12,7 @@ class PublishScheduledAnnouncementWorker
     @announcement.publish! unless @announcement.published?
 
     payload = InlineRenderer.render(@announcement, nil, :announcement)
-    payload = Oj.dump(event: :announcement, payload: payload)
+    payload = { event: :announcement, payload: payload }.to_json
 
     FeedManager.instance.with_active_accounts do |account|
       redis.publish("timeline:#{account.id}", payload) if redis.exists?("subscribed:timeline:#{account.id}")

app/workers/push_conversation_worker.rb

@@ -9,7 +9,7 @@ class PushConversationWorker
     message      = InlineRenderer.render(conversation, conversation.account, :conversation)
     timeline_id  = "timeline:direct:#{conversation.account_id}"
 
-    redis.publish(timeline_id, Oj.dump(event: :conversation, payload: message))
+    redis.publish(timeline_id, { event: :conversation, payload: message }.to_json)
   rescue ActiveRecord::RecordNotFound
     true
   end

app/workers/push_update_worker.rb

@@ -23,10 +23,10 @@ class PushUpdateWorker
   end
 
   def message
-    Oj.dump(
+    JSON.generate({
       event: update? ? :'status.update' : :update,
-      payload: @payload
-    )
+      payload: @payload,
+    }.as_json)
   end
 
   def publish!

app/workers/unfilter_notifications_worker.rb

@@ -39,7 +39,7 @@ class UnfilterNotificationsWorker
   end
 
   def push_streaming_event!
-    redis.publish("timeline:#{@recipient.id}:notifications", Oj.dump(event: :notifications_merged, payload: '1'))
+    redis.publish("timeline:#{@recipient.id}:notifications", { event: :notifications_merged, payload: '1' }.to_json)
   end
 
   def subscribed_to_streaming_api?

app/workers/unpublish_announcement_worker.rb

@@ -5,7 +5,7 @@ class UnpublishAnnouncementWorker
   include Redisable
 
   def perform(announcement_id)
-    payload = Oj.dump(event: :'announcement.delete', payload: announcement_id.to_s)
+    payload = { event: :'announcement.delete', payload: announcement_id.to_s }.to_json
 
     FeedManager.instance.with_active_accounts do |account|
       redis.publish("timeline:#{account.id}", payload) if redis.exists?("subscribed:timeline:#{account.id}")

app/workers/web/push_notification_worker.rb

@@ -101,7 +101,7 @@ class Web::PushNotificationWorker
 
   def push_notification_json
     I18n.with_locale(@subscription.locale.presence || I18n.default_locale) do
-      Oj.dump(serialized_notification.as_json)
+      serialized_notification.to_json
     end
   end