matterbridge/bridge/slack/helpers.go
Duco van Amstel e15b0e04b8 Refactor slack bridge prelude (#517)
Distributing the source of the Slack bridge across multiple files to
increase readability and as a prelude to various refactors and
clean-ups.
2018-10-12 23:16:34 +02:00

117 lines
2.9 KiB
Go

package bslack
import (
"fmt"
"regexp"
"strings"
"github.com/nlopes/slack"
)
func (b *Bslack) userName(id string) string {
for _, u := range b.Users {
if u.ID == id {
if u.Profile.DisplayName != "" {
return u.Profile.DisplayName
}
return u.Name
}
}
return ""
}
func (b *Bslack) getAvatar(userid string) string {
var avatar string
if b.Users != nil {
for _, u := range b.Users {
if userid == u.ID {
return u.Profile.Image48
}
}
}
return avatar
}
/*
func (b *Bslack) getChannelByName(name string) (*slack.Channel, error) {
if b.channels == nil {
return nil, fmt.Errorf("%s: channel %s not found (no channels found)", b.Account, name)
}
for _, channel := range b.channels {
if channel.Name == name {
return &channel, nil
}
}
return nil, fmt.Errorf("%s: channel %s not found", b.Account, name)
}
*/
func (b *Bslack) getChannelByID(ID string) (*slack.Channel, error) {
if b.channels == nil {
return nil, fmt.Errorf("%s: channel %s not found (no channels found)", b.Account, ID)
}
for _, channel := range b.channels {
if channel.ID == ID {
return &channel, nil
}
}
return nil, fmt.Errorf("%s: channel %s not found", b.Account, ID)
}
func (b *Bslack) getChannelID(name string) string {
idcheck := strings.Split(name, "ID:")
if len(idcheck) > 1 {
return idcheck[1]
}
for _, channel := range b.channels {
if channel.Name == name {
return channel.ID
}
}
return ""
}
// @see https://api.slack.com/docs/message-formatting#linking_to_channels_and_users
func (b *Bslack) replaceMention(text string) string {
results := regexp.MustCompile(`<@([a-zA-Z0-9]+)>`).FindAllStringSubmatch(text, -1)
for _, r := range results {
text = strings.Replace(text, "<@"+r[1]+">", "@"+b.userName(r[1]), -1)
}
return text
}
// @see https://api.slack.com/docs/message-formatting#linking_to_channels_and_users
func (b *Bslack) replaceChannel(text string) string {
results := regexp.MustCompile(`<#[a-zA-Z0-9]+\|(.+?)>`).FindAllStringSubmatch(text, -1)
for _, r := range results {
text = strings.Replace(text, r[0], "#"+r[1], -1)
}
return text
}
// @see https://api.slack.com/docs/message-formatting#variables
func (b *Bslack) replaceVariable(text string) string {
results := regexp.MustCompile(`<!((?:subteam\^)?[a-zA-Z0-9]+)(?:\|@?(.+?))?>`).FindAllStringSubmatch(text, -1)
for _, r := range results {
if r[2] != "" {
text = strings.Replace(text, r[0], "@"+r[2], -1)
} else {
text = strings.Replace(text, r[0], "@"+r[1], -1)
}
}
return text
}
// @see https://api.slack.com/docs/message-formatting#linking_to_urls
func (b *Bslack) replaceURL(text string) string {
results := regexp.MustCompile(`<(.*?)(\|.*?)?>`).FindAllStringSubmatch(text, -1)
for _, r := range results {
if len(strings.TrimSpace(r[2])) == 1 { // A display text separator was found, but the text was blank
text = strings.Replace(text, r[0], "", -1)
} else {
text = strings.Replace(text, r[0], r[1], -1)
}
}
return text
}