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Escaping specific markdown in commit messages on Discord-type embeds #3664 (#5811)

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Co-authored-by: Marco De Araujo <marco.araujo.junior@gmail.com>
Co-committed-by: Marco De Araujo <marco.araujo.junior@gmail.com>
This commit is contained in:
Marco De Araujo 2024-11-18 21:47:11 +00:00 • committed by Earl Warren
parent cff7754735
commit 1f4be5baad
3 changed files with 145 additions and 0 deletions
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41
services/webhook/discord.go
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@ -10,6 +10,7 @@ import (
"html/template"
"net/http"
"net/url"
"regexp"
"strconv"
"strings"
"unicode/utf8"
@ -202,6 +203,9 @@ func (d discordConvertor) Push(p *api.PushPayload) (DiscordPayload, error) {
// limit the commit message display to just the summary, otherwise it would be hard to read
message := strings.TrimRight(strings.SplitN(commit.Message, "\n", 1)[0], "\r")
// Escaping markdown character
message = escapeMarkdown(message)
// a limit of 50 is set because GitHub does the same
if utf8.RuneCountInString(message) > 50 {
message = fmt.Sprintf("%.47s...", message)
@ -365,3 +369,40 @@ func (d discordConvertor) createPayload(s *api.User, title, text, url string, co
},
}
}
var orderedListPattern = regexp.MustCompile(`(\d+)\.`)
var markdownPatterns = map[string]*regexp.Regexp{
"~": regexp.MustCompile(`\~(.*?)\~`),
"*": regexp.MustCompile(`\*(.*?)\*`),
"_": regexp.MustCompile(`\_(.*?)\_`),
}
var markdownToEscape = strings.NewReplacer(
"* ", "\\* ",
"`", "\\`",
"[", "\\[",
"]", "\\]",
"(", "\\(",
")", "\\)",
"#", "\\#",
"+ ", "\\+ ",
"- ", "\\- ",
"---", "\\---",
"!", "\\!",
"|", "\\|",
"<", "\\<",
">", "\\>",
)
// Escape Markdown characters
func escapeMarkdown(input string) string {
// Escaping ordered list
output := orderedListPattern.ReplaceAllString(input, "$1\\.")
for char, pattern := range markdownPatterns {
output = pattern.ReplaceAllString(output, fmt.Sprintf(`\%s$1\%s`, char, char))
}
return markdownToEscape.Replace(output)
}