m->d: Fix reply previews saying undefined

This commit is contained in:
Cadence Ember 2024-02-14 11:04:54 +13:00
parent ae4e299cf3
commit 369e0862e5
3 changed files with 130 additions and 12 deletions

View file

@ -522,17 +522,40 @@ async function eventToMessage(event, guild, di) {
} else if (repliedToEvent.unsigned?.redacted_because) {
contentPreview = " (in reply to a deleted message)"
} else {
const repliedToContent = repliedToEvent.content.formatted_body || repliedToEvent.content.body
const contentPreviewChunks = chunk(
entities.decodeHTML5Strict( // Remove entities like & "
repliedToContent.replace(/.*<\/mx-reply>/s, "") // Remove everything before replies, so just use the actual message body
.replace(/^\s*<blockquote>.*?<\/blockquote>(.....)/s, "$1") // If the message starts with a blockquote, don't count it and use the message body afterwards
.replace(/(?:\n|<br>)+/g, " ") // Should all be on one line
.replace(/<span [^>]*data-mx-spoiler\b[^>]*>.*?<\/span>/g, "[spoiler]") // Good enough method of removing spoiler content. (I don't want to break out the HTML parser unless I have to.)
.replace(/<[^>]+>/g, "") // Completely strip all HTML tags and formatting.
), 50)
contentPreview = ":\n> " + contentPreviewChunks[0]
if (contentPreviewChunks.length > 1) contentPreview = contentPreview.replace(/[,.']$/, "") + "..."
// Generate a reply preview for a standard message
/** @type {string} */
let repliedToContent = repliedToEvent.content.formatted_body || repliedToEvent.content.body
repliedToContent = repliedToContent.replace(/.*<\/mx-reply>/s, "") // Remove everything before replies, so just use the actual message body
repliedToContent = repliedToContent.replace(/^\s*<blockquote>.*?<\/blockquote>(.....)/s, "$1") // If the message starts with a blockquote, don't count it and use the message body afterwards
repliedToContent = repliedToContent.replace(/(?:\n|<br>)+/g, " ") // Should all be on one line
repliedToContent = repliedToContent.replace(/<span [^>]*data-mx-spoiler\b[^>]*>.*?<\/span>/g, "[spoiler]") // Good enough method of removing spoiler content. (I don't want to break out the HTML parser unless I have to.)
repliedToContent = repliedToContent.replace(/<img([^>]*)>/g, (_, att) => { // Convert Matrix emoji images into Discord emoji markdown
if (!att.includes("data-mx-emoticon")) return ""
// Try to get the equivalent Discord emoji, if there is a src and if we know about it
const mxcUrlMatch = att.match(/\bsrc="(mxc:\/\/[^"]+)"/)
if (mxcUrlMatch) {
const row = select("emoji", ["emoji_id", "name", "animated"], {mxc_url: mxcUrlMatch[1]}).get()
if (row) {
const animatedChar = row.animated ? "a" : ""
return `<${animatedChar}:${row.name}:${row.emoji_id}>`
}
}
// Emoji is unknown or inaccessible, try substituting the title text instead
const titleTextMatch = att.match(/\btitle=":?([^:"]+)/)
if (titleTextMatch) return `:${titleTextMatch[1]}:`
// Otherwise we can't use the emoji.
return ""
})
repliedToContent = repliedToContent.replace(/<[^:>][^>]*>/g, "") // Completely strip all HTML tags and formatting.
repliedToContent = entities.decodeHTML5Strict(repliedToContent) // Remove entities like &amp; &quot;
const contentPreviewChunks = chunk(repliedToContent, 50)
if (contentPreviewChunks.length) {
contentPreview = ":\n> " + contentPreviewChunks[0]
if (contentPreviewChunks.length > 1) contentPreview = contentPreview.replace(/[,.']$/, "") + "..."
} else {
console.log("Unable to generate reply preview for this replied-to event because we stripped all of it:", repliedToEvent)
contentPreview = ""
}
}
replyLine = `> ${replyLine}${contentPreview}\n`
})()