97 lines
2.5 KiB
Go
97 lines
2.5 KiB
Go
|
package gomatrix
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"regexp"
|
||
|
|
"strings"
|
||
|
|
|
||
|
|
"golang.org/x/net/html"
|
||
|
|
)
|
||
|
|
|
||
|
|
var HTMLReplyFallbackRegex = regexp.MustCompile(`^<mx-reply>[\s\S]+?</mx-reply>`)
|
||
|
|
|
||
|
|
func TrimReplyFallbackHTML(html string) string {
|
||
|
|
return HTMLReplyFallbackRegex.ReplaceAllString(html, "")
|
||
|
|
}
|
||
|
|
|
||
|
|
func TrimReplyFallbackText(text string) string {
|
||
|
|
if !strings.HasPrefix(text, "> ") || !strings.Contains(text, "\n") {
|
||
|
|
return text
|
||
|
|
}
|
||
|
|
|
||
|
|
lines := strings.Split(text, "\n")
|
||
|
|
for len(lines) > 0 && strings.HasPrefix(lines[0], "> ") {
|
||
|
|
lines = lines[1:]
|
||
|
|
}
|
||
|
|
return strings.TrimSpace(strings.Join(lines, "\n"))
|
||
|
|
}
|
||
|
|
|
||
|
|
func (content *Content) RemoveReplyFallback() {
|
||
|
|
if len(content.GetReplyTo()) > 0 {
|
||
|
|
if content.Format == FormatHTML {
|
||
|
|
content.FormattedBody = TrimReplyFallbackHTML(content.FormattedBody)
|
||
|
|
}
|
||
|
|
content.Body = TrimReplyFallbackText(content.Body)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (content *Content) GetReplyTo() string {
|
||
|
|
if content.RelatesTo != nil {
|
||
|
|
return content.RelatesTo.InReplyTo.EventID
|
||
|
|
}
|
||
|
|
return ""
|
||
|
|
}
|
||
|
|
|
||
|
|
const ReplyFormat = `<mx-reply><blockquote>
|
||
|
|
<a href="https://matrix.to/#/%s/%s">In reply to</a>
|
||
|
|
<a href="https://matrix.to/#/%s">%s</a>
|
||
|
|
%s
|
||
|
|
</blockquote></mx-reply>
|
||
|
|
`
|
||
|
|
|
||
|
|
func (evt *Event) GenerateReplyFallbackHTML() string {
|
||
|
|
body := evt.Content.FormattedBody
|
||
|
|
if len(body) == 0 {
|
||
|
|
body = html.EscapeString(evt.Content.Body)
|
||
|
|
}
|
||
|
|
|
||
|
|
senderDisplayName := evt.Sender
|
||
|
|
|
||
|
|
return fmt.Sprintf(ReplyFormat, evt.RoomID, evt.ID, evt.Sender, senderDisplayName, body)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (evt *Event) GenerateReplyFallbackText() string {
|
||
|
|
body := evt.Content.Body
|
||
|
|
lines := strings.Split(strings.TrimSpace(body), "\n")
|
||
|
|
firstLine, lines := lines[0], lines[1:]
|
||
|
|
|
||
|
|
senderDisplayName := evt.Sender
|
||
|
|
|
||
|
|
var fallbackText strings.Builder
|
||
|
|
fmt.Fprintf(&fallbackText, "> <%s> %s", senderDisplayName, firstLine)
|
||
|
|
for _, line := range lines {
|
||
|
|
fmt.Fprintf(&fallbackText, "\n> %s", line)
|
||
|
|
}
|
||
|
|
fallbackText.WriteString("\n\n")
|
||
|
|
return fallbackText.String()
|
||
|
|
}
|
||
|
|
|
||
|
|
func (content *Content) SetReply(inReplyTo *Event) {
|
||
|
|
if content.RelatesTo == nil {
|
||
|
|
content.RelatesTo = &RelatesTo{}
|
||
|
|
}
|
||
|
|
content.RelatesTo.InReplyTo = InReplyTo{
|
||
|
|
EventID: inReplyTo.ID,
|
||
|
|
RoomID: inReplyTo.RoomID,
|
||
|
|
}
|
||
|
|
|
||
|
|
if content.MsgType == MsgText || content.MsgType == MsgNotice {
|
||
|
|
if len(content.FormattedBody) == 0 || content.Format != FormatHTML {
|
||
|
|
content.FormattedBody = html.EscapeString(content.Body)
|
||
|
|
content.Format = FormatHTML
|
||
|
|
}
|
||
|
|
content.FormattedBody = inReplyTo.GenerateReplyFallbackHTML() + content.FormattedBody
|
||
|
|
content.Body = inReplyTo.GenerateReplyFallbackText() + content.Body
|
||
|
|
}
|
||
|
|
}
|