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Fix handling gifs where canonical URL is different

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This commit is contained in:
Tulir Asokan 2023-08-03 00:16:47 +03:00
parent 5467ab074d
commit 0391750fea
2 changed files with 12 additions and 4 deletions
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5
formatter.go
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@ -156,11 +156,14 @@ func (br *DiscordBridge) pillConverter(displayname, mxid, eventID string, ctx fo
return displayname
}
const discordLinkPattern = `https?://[^<\p{Zs}\x{feff}]*[^"'),.:;\]\p{Zs}\x{feff}]`
// Discord links start with http:// or https://, contain at least two characters afterwards,
// don't contain < or whitespace anywhere, and don't end with "'),.:;]
//
// Zero-width whitespace is mostly in the Format category and is allowed, except \uFEFF isn't for some reason
var discordLinkRegex = regexp.MustCompile(`https?://[^<\p{Zs}\x{feff}]*[^"'),.:;\]\p{Zs}\x{feff}]`)
var discordLinkRegex = regexp.MustCompile(discordLinkPattern)
var discordLinkRegexFull = regexp.MustCompile("^" + discordLinkPattern + "$")
var discordMarkdownEscaper = strings.NewReplacer(
`\`, `\\`,

11
portal_convert.go
View file

@ -621,9 +621,14 @@ func getEmbedType(msg *discordgo.Message, embed *discordgo.MessageEmbed) BridgeE
}
func isPlainGifMessage(msg *discordgo.Message) bool {
return len(msg.Embeds) == 1 && msg.Embeds[0].URL == msg.Content &&
((msg.Embeds[0].Type == discordgo.EmbedTypeGifv && msg.Embeds[0].Video != nil) ||
(msg.Embeds[0].Type == discordgo.EmbedTypeImage && msg.Embeds[0].Image == nil && msg.Embeds[0].Thumbnail != nil))
if len(msg.Embeds) != 1 {
return false
}
embed := msg.Embeds[0]
isGifVideo := embed.Type == discordgo.EmbedTypeGifv && embed.Video != nil
isGifImage := embed.Type == discordgo.EmbedTypeImage && embed.Image == nil && embed.Thumbnail != nil
contentIsOnlyURL := msg.Content == embed.URL || discordLinkRegexFull.MatchString(msg.Content)
return contentIsOnlyURL && (isGifVideo || isGifImage)
}
func (portal *Portal) convertDiscordMentions(msg *discordgo.Message, syncGhosts bool) *event.Mentions {