fix(post-form): hide filename for non-file media links

Only show pasted link filenames when the URL resolves to publishable
file media, so bare paths like imgur album IDs are not shown as files.

src/components/post-form/__tests__/post-form.test.tsx

@@ -309,7 +309,7 @@ vi.mock('../../../hooks/use-file-upload', () => ({
   },
 }));
 
-vi.mock('../../loading-ellipsis', () => ({
+vi.mock('../../loading-ellipsis/loading-ellipsis', () => ({
   default: ({ string }: { string: string }) => createElement('span', { 'data-testid': 'loading-ellipsis' }, string),
 }));
 
@@ -331,19 +331,26 @@ vi.mock('../../../lib/utils/media-utils', () => {
   return {
     getDisplayMediaInfoType: (type: string, t: (key: string) => string) => t(type),
     getLinkMediaInfo: (link: string) => {
+      const path = (() => {
+        try {
+          return new URL(link).pathname;
+        } catch {
+          return link;
+        }
+      })();
       if (getTwimgMediaFilePublishUrl(link)) {
         return { type: 'image', url: link };
       }
-      if (link.endsWith('.gif')) {
+      if (path.endsWith('.gif')) {
         return { type: 'gif', url: link };
       }
-      if (link.endsWith('.jpg') || link.endsWith('.jpeg') || link.endsWith('.png')) {
+      if (path.endsWith('.jpg') || path.endsWith('.jpeg') || path.endsWith('.png')) {
         return { type: 'image', url: link };
       }
-      if (link.endsWith('.mp4')) {
+      if (path.endsWith('.mp4')) {
         return { type: 'video', url: link };
       }
-      if (link.endsWith('.mp3')) {
+      if (path.endsWith('.mp3')) {
         return { type: 'audio', url: link };
       }
       if (link.includes('youtube.com')) {
@@ -1306,6 +1313,23 @@ describe('PostForm', () => {
     expect(table?.textContent).toContain('file name.jpg');
   });
 
+  it('does not show a pasted non-file path segment next to the upload button', async () => {
+    testState.uploadedFileName = null;
+
+    await renderPostForm('/all');
+    await clickByText(container, 'start_new_thread');
+
+    const table = container.querySelector('table');
+    const textInputs = table?.querySelectorAll<HTMLInputElement>('input[type="text"]') || [];
+    const linkInput = textInputs[3];
+
+    await dispatchInput(linkInput as HTMLInputElement, 'https://imgur.com/8EJ2T76');
+
+    expect(table?.textContent).toContain('not_a_file');
+    expect(table?.textContent).toContain('no_file_chosen');
+    expect(table?.textContent).not.toContain('8EJ2T76');
+  });
+
   it('shows the rules and FAQ prompt at the bottom of the form with a board-specific rules link', async () => {
     testState.resolvedCommunityAddress = 'music-posting.eth';
 

src/components/post-form/post-form.tsx

@@ -6,7 +6,7 @@ import { Comment, setAccount, useAccount, useEditedComment } from '@bitsocial/bi
 import getShortAddress from '../../lib/get-short-address';
 import useCommunitiesPagesStore from '@bitsocial/bitsocial-react-hooks/dist/stores/communities-pages';
 import { getDisplayMediaInfoType, getLinkMediaInfo, getTwimgMediaFilePublishUrl } from '../../lib/utils/media-utils';
-import { getExpiringMediaLinkAlert } from '../../lib/utils/media-link-validation-utils';
+import { getExpiringMediaLinkAlert, getPublishFileDisplayName, isPublishFileMediaLink, isPublishFileMediaType } from '../../lib/utils/media-link-validation-utils';
 import {
   type DiceRoll,
   type FortuneEntry,
@@ -21,7 +21,7 @@ import {
   isPostOptionsValidationError,
 } from '../../lib/utils/post-options-utils';
 import { truncateWithEllipsisInMiddle } from '../../lib/utils/string-utils';
-import { getPublishURLFilename, isValidPublishURL, isValidURL } from '../../lib/utils/url-utils';
+import { isValidPublishURL, isValidURL } from '../../lib/utils/url-utils';
 import { getModerationPostingRoleLabel } from '../../lib/utils/author-display-utils';
 import { hasModQueueAccessRole } from '../../lib/utils/mod-access';
 import { getBoardPath } from '../../lib/utils/route-utils';
@@ -46,8 +46,8 @@ import { isCommentArchived } from '../../lib/utils/comment-moderation-utils';
 import useMediaHostingStore from '../../stores/use-media-hosting-store';
 import BoardOfflineAlert from '../board-offline-alert/board-offline-alert';
 import BbcodeEditorToolbar, { BbcodePreview } from '../bbcode-editor-toolbar/bbcode-editor-toolbar';
-import LoadingEllipsis from '../loading-ellipsis';
+import LoadingEllipsis from '../loading-ellipsis/loading-ellipsis';
-import OekakiDrawingControls from '../oekaki-drawing-controls';
+import OekakiDrawingControls from '../oekaki-drawing-controls/oekaki-drawing-controls';
 import PostOptionsErrorMessage from '../post-options-error-message/post-options-error-message';
 import styles from './post-form.module.css';
 import capitalize from 'lodash/capitalize';
@@ -55,23 +55,18 @@ import debounce from 'lodash/debounce';
 
 const FILE_LINK_PLACEHOLDER = 'https://website.com/image.jpg';
 const POST_FORM_FILE_DISPLAY_MAX_LENGTH = 28;
-const POST_FORM_FILE_MEDIA_TYPES = new Set(['gif', 'image', 'video']);
 
 const mergeFlairs = (...flairGroups: Array<Comment['flairs'] | undefined>): Comment['flairs'] | undefined => {
   const flairs = flairGroups.flatMap((group) => (Array.isArray(group) ? group : []));
   return flairs.length > 0 ? flairs : undefined;
 };
 
-const getPostFormFileDisplayLabel = (url: string, uploadedFileName: string | null | undefined, noFileLabel: string): string => {
+const getPostFormFileDisplayLabel = (url: string, uploadedFileName: string | null | undefined, noFileLabel: string, requireFile: boolean): string => {
-  const raw = getPublishURLFilename(url) || uploadedFileName;
+  const raw = getPublishFileDisplayName(url, uploadedFileName, requireFile);
   if (!raw) return noFileLabel;
   return truncateWithEllipsisInMiddle(raw, POST_FORM_FILE_DISPLAY_MAX_LENGTH);
 };
 
-const isPostFormFileMediaType = (type: string | undefined): boolean => Boolean(type && POST_FORM_FILE_MEDIA_TYPES.has(type));
-
-const isPostFormFileMediaLink = (link: string): boolean => isPostFormFileMediaType(getLinkMediaInfo(link)?.type);
-
 const getPublishLinkOptions = (link: string, includeCurrentLink: boolean): Partial<Pick<Comment, 'link'>> => {
   const twimgPublishUrl = getTwimgMediaFilePublishUrl(link);
   if (twimgPublishUrl) {
@@ -87,7 +82,7 @@ export const LinkTypePreviewer = ({ link, requireFile = false }: { link: string;
   let type = mediaInfo?.type;
   const { status: gifFrameStatus } = useFetchGifFirstFrame(type === 'gif' ? mediaInfo?.url : undefined);
 
-  if (requireFile && isValidURL(link) && !isPostFormFileMediaType(type)) {
+  if (requireFile && isValidURL(link) && !isPublishFileMediaType(type)) {
     return <span className={styles.linkTypeError}>{t('not_a_file')}</span>;
   }
 
@@ -400,8 +395,8 @@ const PostFormFields = ({
             isUploading={isUploading}
             showUploadControls={showUploadControls}
           />
-          <span title={getPublishURLFilename(url) || uploadedFileName || undefined}>
+          <span title={getPublishFileDisplayName(url, uploadedFileName, requirePostLinkIsMedia) || undefined}>
-            {isUploading ? <LoadingEllipsis string={t('uploading')} /> : getPostFormFileDisplayLabel(url, uploadedFileName, t('no_file_chosen'))}
+            {isUploading ? <LoadingEllipsis string={t('uploading')} /> : getPostFormFileDisplayLabel(url, uploadedFileName, t('no_file_chosen'), requirePostLinkIsMedia)}
           </span>
         </td>
       </tr>
@@ -653,7 +648,7 @@ const PostFormTable = ({ closeForm, postCid }: { closeForm: () => void; postCid:
       setFormError(`${t('error')}: ${t('invalid_url_alert')}`);
       return;
     }
-    if (currentUrl && requirePostLinkIsMedia && !isPostFormFileMediaLink(currentUrl)) {
+    if (currentUrl && requirePostLinkIsMedia && !isPublishFileMediaLink(currentUrl)) {
       setFormError(`${t('error')}: ${t('link_not_image_or_video_alert')}`);
       return;
     }
@@ -781,7 +776,7 @@ const PostFormTable = ({ closeForm, postCid }: { closeForm: () => void; postCid:
       setFormError(`${t('error')}: ${t('invalid_url_alert')}`);
       return;
     }
-    if (currentUrl && requirePostLinkIsMedia && !isPostFormFileMediaLink(currentUrl)) {
+    if (currentUrl && requirePostLinkIsMedia && !isPublishFileMediaLink(currentUrl)) {
       setFormError(`${t('error')}: ${t('link_not_image_or_video_alert')}`);
       return;
     }

src/components/reply-modal/__tests__/reply-modal.test.tsx

@@ -223,7 +223,7 @@ vi.mock('../../../hooks/use-file-upload', () => ({
   },
 }));
 
-vi.mock('../../loading-ellipsis', () => ({
+vi.mock('../../loading-ellipsis/loading-ellipsis', () => ({
   default: ({ string }: { string: string }) => createElement('span', { 'data-testid': 'loading-ellipsis' }, string),
 }));
 
@@ -1021,6 +1021,21 @@ describe('ReplyModal', () => {
     expect(container.textContent).not.toContain('Spoiler?');
   });
 
+  it('only shows pasted link filenames after media-only links are confirmed as files', async () => {
+    await renderReplyModal('/all/thread/post-1');
+
+    const linkInput = container.querySelectorAll<HTMLInputElement>('input[type="text"]')[2];
+
+    await dispatchInput(linkInput, 'https://imgur.com/8EJ2T76');
+
+    expect(container.textContent).toContain('no_file_chosen');
+    expect(container.textContent).not.toContain('8EJ2T76');
+
+    await dispatchInput(linkInput, 'https://imgur.com/8EJ2T76.jpg');
+
+    expect(container.textContent).toContain('8EJ2T76.jpg');
+  });
+
   it('positions the draggable modal with left/top styles instead of a transform layer', async () => {
     await renderReplyModal('/mu/thread/post-1');
 

src/components/reply-modal/reply-modal.tsx

@@ -3,7 +3,7 @@ import { useLocation, useNavigate, useParams } from 'react-router-dom';
 import { useTranslation } from 'react-i18next';
 import type { TFunction } from 'i18next';
 import { setAccount, useAccount } from '@bitsocial/bitsocial-react-hooks';
-import { getExpiringMediaLinkAlert } from '../../lib/utils/media-link-validation-utils';
+import { getExpiringMediaLinkAlert, getPublishFileDisplayName } from '../../lib/utils/media-link-validation-utils';
 import { getCommentFlagOptionsForDirectory, getCommentFlagPublishOptionsForDirectory } from '../../lib/comment-flag-selection';
 import {
   type DiceRoll,
@@ -17,7 +17,7 @@ import {
   hasNonokoOption,
   isPostOptionsValidationError,
 } from '../../lib/utils/post-options-utils';
-import { getPublishURLFilename, isValidPublishURL } from '../../lib/utils/url-utils';
+import { isValidPublishURL } from '../../lib/utils/url-utils';
 import { hasModQueueAccessRole } from '../../lib/utils/mod-access';
 import { getModerationPostingRoleLabel } from '../../lib/utils/author-display-utils';
 import { isAllView, isModView, isSubscriptionsView } from '../../lib/utils/view-utils';
@@ -35,8 +35,8 @@ import { useCommunityField } from '../../hooks/use-stable-community';
 import { OEKAKI_WEB_WARNING_TEXT } from '../../lib/oekaki/oekaki-copy';
 import BbcodeEditorToolbar, { BbcodePreview } from '../bbcode-editor-toolbar/bbcode-editor-toolbar';
 import BoardOfflineAlert from '../board-offline-alert/board-offline-alert';
-import LoadingEllipsis from '../loading-ellipsis';
+import LoadingEllipsis from '../loading-ellipsis/loading-ellipsis';
-import OekakiDrawingControls from '../oekaki-drawing-controls';
+import OekakiDrawingControls from '../oekaki-drawing-controls/oekaki-drawing-controls';
 import PostOptionsErrorMessage from '../post-options-error-message/post-options-error-message';
 import styles from './reply-modal.module.css';
 import capitalize from 'lodash/capitalize';
@@ -498,7 +498,7 @@ const ReplyModal = ({ closeModal, showReplyModal, parentCid, parentNumber, threa
   };
   const uploadMode = useMediaHostingStore((state) => state.uploadMode);
   const showUploadControls = getShowUploadControls(uploadMode, isWebRuntime());
-  const displayedFileName = getPublishURLFilename(url) || uploadedFileName;
+  const displayedFileName = getPublishFileDisplayName(url, uploadedFileName, requirePostLinkIsMedia);
   const youtubeThumbnailConversionNotice =
     youtubeThumbnailConversionCountdown !== null ? t('youtube_thumbnail_link_conversion_notice', { count: youtubeThumbnailConversionCountdown }) : null;
 

src/lib/utils/media-link-validation-utils.ts

@@ -1,8 +1,25 @@
-import { getExpiringMediaLinkHostname } from './url-utils';
+import { getExpiringMediaLinkHostname, getPublishURLFilename } from './url-utils';
+import { getLinkMediaInfo } from './media-utils';
 
 type TranslateFn = (key: string, options?: Record<string, unknown>) => string;
 
+const PUBLISH_FILE_MEDIA_TYPES = new Set(['gif', 'image', 'video']);
+
 export const getExpiringMediaLinkAlert = (url: string, t: TranslateFn): string | null => {
   const expiringMediaLinkHostname = getExpiringMediaLinkHostname(url);
   return expiringMediaLinkHostname ? `${t('error')}: ${t('expiring_media_link_alert', { domain: expiringMediaLinkHostname })}` : null;
 };
+
+export const isPublishFileMediaType = (type: string | undefined): boolean => Boolean(type && PUBLISH_FILE_MEDIA_TYPES.has(type));
+
+export const isPublishFileMediaLink = (link: string): boolean => isPublishFileMediaType(getLinkMediaInfo(link)?.type);
+
+export const getPublishFileDisplayName = (url: string, uploadedFileName: string | null | undefined, requireFile: boolean): string | null => {
+  if (!url) {
+    return uploadedFileName || null;
+  }
+  if (requireFile && !isPublishFileMediaLink(url)) {
+    return null;
+  }
+  return getPublishURLFilename(url) || uploadedFileName || null;
+};