80 lines
2.7 KiB
Go
80 lines
2.7 KiB
Go
// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
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// See License.txt for license information.
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package model
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import (
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"fmt"
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"strings"
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)
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type SlackAttachment struct {
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Id int64 `json:"id"`
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Fallback string `json:"fallback"`
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Color string `json:"color"`
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Pretext string `json:"pretext"`
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AuthorName string `json:"author_name"`
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AuthorLink string `json:"author_link"`
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AuthorIcon string `json:"author_icon"`
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Title string `json:"title"`
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TitleLink string `json:"title_link"`
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Text string `json:"text"`
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Fields []*SlackAttachmentField `json:"fields"`
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ImageURL string `json:"image_url"`
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ThumbURL string `json:"thumb_url"`
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Footer string `json:"footer"`
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FooterIcon string `json:"footer_icon"`
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Timestamp interface{} `json:"ts"` // This is either a string or an int64
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}
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type SlackAttachmentField struct {
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Title string `json:"title"`
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Value interface{} `json:"value"`
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Short bool `json:"short"`
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}
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// To mention @channel via a webhook in Slack, the message should contain
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// <!channel>, as explained at the bottom of this article:
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// https://get.slack.help/hc/en-us/articles/202009646-Making-announcements
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func ExpandAnnouncement(text string) string {
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c1 := "<!channel>"
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c2 := "@channel"
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if strings.Contains(text, c1) {
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return strings.Replace(text, c1, c2, -1)
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}
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return text
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}
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// Expand announcements in incoming webhooks from Slack. Those announcements
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// can be found in the text attribute, or in the pretext, text, title and value
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// attributes of the attachment structure. The Slack attachment structure is
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// documented here: https://api.slack.com/docs/attachments
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func ProcessSlackAttachments(a []*SlackAttachment) []*SlackAttachment {
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var nonNilAttachments []*SlackAttachment
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for _, attachment := range a {
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if attachment == nil {
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continue
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}
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nonNilAttachments = append(nonNilAttachments, attachment)
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attachment.Pretext = ExpandAnnouncement(attachment.Pretext)
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attachment.Text = ExpandAnnouncement(attachment.Text)
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attachment.Title = ExpandAnnouncement(attachment.Title)
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var nonNilFields []*SlackAttachmentField
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for _, field := range attachment.Fields {
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if field == nil {
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continue
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}
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nonNilFields = append(nonNilFields, field)
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if field.Value != nil {
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// Ensure the value is set to a string if it is set
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field.Value = ExpandAnnouncement(fmt.Sprintf("%v", field.Value))
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}
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}
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attachment.Fields = nonNilFields
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}
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return nonNilAttachments
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}
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