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docuseal/app/javascript/submission_form/markdown_content.vue

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<template>
<span>
<span v-if="textOnly">
{{ dom.body.textContent }}
</span>
<template v-else>
<template
v-for="(item, index) in nodes || dom.body.childNodes"
:key="index"
>
<a
v-if="item.tagName === 'A' && item.getAttribute('href') !== 'undefined'"
:href="sanitizeUrl(item.getAttribute('href'))"
rel="noopener noreferrer nofollow"
:class="item.getAttribute('class') || 'link'"
target="_blank"
>
<MarkdownContent :nodes="item.childNodes" />
</a>
<component
:is="item.tagName"
v-else-if="safeTags.includes(item.tagName)"
>
<MarkdownContent :nodes="item.childNodes" />
</component>
<br v-else-if="item.tagName === 'BR' || item.nodeValue === '\n'">
<template v-else>
{{ item.textContent }}
</template>
</template>
</template>
</span>
</template>
<script>
import snarkdown from 'snarkdown'
import { sanitizeUrl } from '@braintree/sanitize-url'
export default {
name: 'MarkdownContent',
props: {
string: {
type: String,
required: false,
default: ''
},
nodes: {
type: [Array, Object],
require: false,
default: null
},
textOnly: {
type: Boolean,
required: false,
default: false
}
},
computed: {
safeTags () {
return ['UL', 'I', 'EM', 'B', 'STRONG', 'P']
},
dom () {
const linkParts = this.string.split(/(https?:\/\/[^\s)]+)/g)
const text = linkParts.map((part, index) => {
if (part.match(/^https?:\/\//) && !linkParts[index - 1]?.match(/\(\s*$/) && !linkParts[index + 1]?.match(/^\s*\)/)) {
return `[${part}](${part})`
} else {
return part
}
}).join('')
return new DOMParser().parseFromString(snarkdown(text.replace(/\n/g, '<br>')), 'text/html')
}
},
methods: {
sanitizeUrl
}
}
</script>