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fix(client): validate urls to improve security

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This commit is contained in:
syuilo 2023-02-04 14:20:07 +09:00
parent 2dfed75402
commit 38f9d1e764
4 changed files with 19 additions and 2 deletions
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7
CHANGELOG.md
View file

@ -9,6 +9,13 @@
You should also include the user name that made the change.
-->
## 13.x.x (unreleased)
### Improvements
### Bugfixes
- Client: validate urls to improve security
## 13.3.1 (2023/02/04)
### Bugfixes

8
packages/backend/src/server/web/UrlPreviewService.ts
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@ -73,6 +73,14 @@ export class UrlPreviewService {
});
this.logger.succ(`Got preview of ${url}: ${summary.title}`);
if (summary.url && !(summary.url.startsWith('http://') || summary.url.startsWith('https://'))) {
throw new Error('unsupported schema included');
}
if (summary.player?.url && !(summary.player.url.startsWith('http://') || summary.player.url.startsWith('https://'))) {
throw new Error('unsupported schema included');
}
summary.icon = this.wrap(summary.icon);
summary.thumbnail = this.wrap(summary.thumbnail);

3
packages/frontend/src/components/MkUrlPreview.vue
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@ -1,7 +1,8 @@
<template>
<div v-if="playerEnabled" :class="$style.player" :style="`padding: ${(player.height || 0) / (player.width || 1) * 100}% 0 0`">
<button :class="$style.disablePlayer" :title="i18n.ts.disablePlayer" @click="playerEnabled = false"><i class="ti ti-x"></i></button>
<iframe :class="$style.playerIframe" :src="player.url + (player.url.match(/\?/) ? '&autoplay=1&auto_play=1' : '?autoplay=1&auto_play=1')" :width="player.width || '100%'" :heigth="player.height || 250" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen/>
<iframe v-if="player.url.startsWith('http://') || player.url.startsWith('https://')" :class="$style.playerIframe" :src="player.url + (player.url.match(/\?/) ? '&autoplay=1&auto_play=1' : '?autoplay=1&auto_play=1')" :width="player.width || '100%'" :heigth="player.height || 250" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen/>
<span v-else>invalid url</span>
</div>
<div v-else-if="tweetId && tweetExpanded" ref="twitter" :class="$style.twitter">
<iframe ref="tweet" scrolling="no" frameborder="no" :style="{ position: 'relative', width: '100%', height: `${tweetHeight}px` }" :src="`https://platform.twitter.com/embed/index.html?embedId=${embedId}&amp;hideCard=false&amp;hideThread=false&amp;lang=en&amp;theme=${$store.state.darkMode ? 'dark' : 'light'}&amp;id=${tweetId}`"></iframe>

3
packages/frontend/src/components/MkYoutubePlayer.vue
View file

@ -7,9 +7,10 @@
<div class="poamfof">
<Transition :name="$store.state.animation ? 'fade' : ''" mode="out-in">
<div v-if="player.url" class="player">
<div v-if="player.url && (player.url.startsWith('http://') || player.url.startsWith('https://'))" class="player">
<iframe v-if="!fetching" :src="player.url + (player.url.match(/\?/) ? '&autoplay=1&auto_play=1' : '?autoplay=1&auto_play=1')" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen/>
</div>
<span v-else>invalid url</span>
</Transition>
<MkLoading v-if="fetching"/>
<MkError v-else-if="!player.url" @retry="ytFetch()"/>