Autisticats/mautrix-discord
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add support for disabling link previews via MSC4095

Browse Source
This commit is contained in:
Tulir Asokan
2025-08-10 23:47:39 +03:00
parent 52ebc21d9b
commit 820951cb6e
2 changed files with 38 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
formatter.go
View File

@@ -98,6 +98,7 @@ func (portal *Portal) renderDiscordMarkdownOnlyHTML(text string, allowInlineLink
const formatterContextPortalKey = "fi.mau.discord.portal"
const formatterContextAllowedMentionsKey = "fi.mau.discord.allowed_mentions"
const formatterContextInputAllowedMentionsKey = "fi.mau.discord.input_allowed_mentions"
const formatterContextInputAllowedLinkPreviewsKey = "fi.mau.discord.input_allowed_link_previews"
func appendIfNotContains(arr []string, newItem string) []string {
for _, item := range arr {
@@ -221,16 +222,24 @@ var matrixHTMLParser = &format.HTMLParser{
return fmt.Sprintf("||%s||", text)
},
LinkConverter: func(text, href string, ctx format.Context) string {
linkPreviews := ctx.ReturnData[formatterContextInputAllowedLinkPreviewsKey].([]string)
allowPreview := linkPreviews == nil || slices.Contains(linkPreviews, href)
if text == href {
if !allowPreview {
return fmt.Sprintf("<%s>", text)
}
return text
} else if !discordLinkRegexFull.MatchString(href) {
return fmt.Sprintf("%s (%s)", escapeDiscordMarkdown(text), escapeDiscordMarkdown(href))
} else if !allowPreview {
return fmt.Sprintf("[%s](<%s>)", escapeDiscordMarkdown(text), href)
} else {
return fmt.Sprintf("[%s](%s)", escapeDiscordMarkdown(text), href)
}
return fmt.Sprintf("[%s](%s)", escapeDiscordMarkdown(text), href)
},
}
func (portal *Portal) parseMatrixHTML(content *event.MessageEventContent) (string, *discordgo.MessageAllowedMentions) {
func (portal *Portal) parseMatrixHTML(content *event.MessageEventContent, allowedLinkPreviews []string) (string, *discordgo.MessageAllowedMentions) {
allowedMentions := &discordgo.MessageAllowedMentions{
Parse: []discordgo.AllowedMentionType{},
Users: []string{},
@@ -238,6 +247,7 @@ func (portal *Portal) parseMatrixHTML(content *event.MessageEventContent) (strin
}
if content.Format == event.FormatHTML && len(content.FormattedBody) > 0 {
ctx := format.NewContext()
ctx.ReturnData[formatterContextInputAllowedLinkPreviewsKey] = allowedLinkPreviews
ctx.ReturnData[formatterContextPortalKey] = portal
ctx.ReturnData[formatterContextAllowedMentionsKey] = allowedMentions
if content.Mentions != nil {