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laxer HTML sanitisation for admin-controlled text - fixes #447

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dakkar 2024-05-07 20:19:52 +00:00 committed by Ember
parent 9de4e3c7aa
commit 2c40dd31f3
4 changed files with 21 additions and 3 deletions
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2
packages/frontend/src/components/MkSignupDialog.rules.vue
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@ -65,7 +65,7 @@ SPDX-License-Identifier: AGPL-3.0-only
import { computed, ref } from 'vue';
import { instance } from '@/instance.js';
import { i18n } from '@/i18n.js';
import sanitizeHtml from 'sanitize-html';
import sanitizeHtml from '@/scripts/sanitize-html.js';
import MkButton from '@/components/MkButton.vue';
import MkFolder from '@/components/MkFolder.vue';
import MkSwitch from '@/components/MkSwitch.vue';

2
packages/frontend/src/components/MkVisitorDashboard.vue
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@ -56,7 +56,7 @@ SPDX-License-Identifier: AGPL-3.0-only
<script lang="ts" setup>
import { ref } from 'vue';
import * as Misskey from 'misskey-js';
import sanitizeHtml from 'sanitize-html';
import sanitizeHtml from '@/scripts/sanitize-html.js';
import XSigninDialog from '@/components/MkSigninDialog.vue';
import XSignupDialog from '@/components/MkSignupDialog.vue';
import MkButton from '@/components/MkButton.vue';

2
packages/frontend/src/pages/about.vue
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@ -130,7 +130,7 @@ SPDX-License-Identifier: AGPL-3.0-only
</template>
<script lang="ts" setup>
import sanitizeHtml from 'sanitize-html';
import sanitizeHtml from '@/scripts/sanitize-html.js';
import { computed, watch, ref } from 'vue';
import * as Misskey from 'misskey-js';
import XEmojis from './about.emojis.vue';

18
packages/frontend/src/scripts/sanitize-html.ts Normal file
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@ -0,0 +1,18 @@
/*
* SPDX-FileCopyrightText: dakkar and other Sharkey contributors
* SPDX-License-Identifier: AGPL-3.0-only
*/
import original from 'sanitize-html';
export default function sanitizeHtml(str: string | null): string | null {
if (str == null) return str;
return original(str, {
allowedTags: original.defaults.allowedTags.concat(['img', 'audio', 'video', 'center', 'details', 'summary']),
allowedAttributes: {
...original.defaults.allowedAttributes,
a: original.defaults.allowedAttributes.a.concat(['style']),
img: original.defaults.allowedAttributes.img.concat(['style']),
},
});
}