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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package model
import (
"fmt"
"regexp"
)
var linkWithTextRegex = regexp.MustCompile(`<([^<\|]+)\|([^>]+)>`)
type SlackAttachment struct {
Id int64 `json:"id"`
Fallback string `json:"fallback"`
Color string `json:"color"`
Pretext string `json:"pretext"`
AuthorName string `json:"author_name"`
AuthorLink string `json:"author_link"`
AuthorIcon string `json:"author_icon"`
Title string `json:"title"`
TitleLink string `json:"title_link"`
Text string `json:"text"`
Fields []*SlackAttachmentField `json:"fields"`
ImageURL string `json:"image_url"`
ThumbURL string `json:"thumb_url"`
Footer string `json:"footer"`
FooterIcon string `json:"footer_icon"`
Timestamp interface{} `json:"ts"` // This is either a string or an int64
Actions []*PostAction `json:"actions,omitempty"`
}
func (s *SlackAttachment) Equals(input *SlackAttachment) bool {
// Direct comparison of simple types
if s.Id != input.Id {
return false
}
if s.Fallback != input.Fallback {
return false
}
if s.Color != input.Color {
return false
}
if s.Pretext != input.Pretext {
return false
}
if s.AuthorName != input.AuthorName {
return false
}
if s.AuthorLink != input.AuthorLink {
return false
}
if s.AuthorIcon != input.AuthorIcon {
return false
}
if s.Title != input.Title {
return false
}
if s.TitleLink != input.TitleLink {
return false
}
if s.Text != input.Text {
return false
}
if s.ImageURL != input.ImageURL {
return false
}
if s.ThumbURL != input.ThumbURL {
return false
}
if s.Footer != input.Footer {
return false
}
if s.FooterIcon != input.FooterIcon {
return false
}
// Compare length & slice values of fields
if len(s.Fields) != len(input.Fields) {
return false
}
for j := range s.Fields {
if !s.Fields[j].Equals(input.Fields[j]) {
return false
}
}
// Compare length & slice values of actions
if len(s.Actions) != len(input.Actions) {
return false
}
for j := range s.Actions {
if !s.Actions[j].Equals(input.Actions[j]) {
return false
}
}
return s.Timestamp == input.Timestamp
}
type SlackAttachmentField struct {
Title string `json:"title"`
Value interface{} `json:"value"`
Short SlackCompatibleBool `json:"short"`
}
func (s *SlackAttachmentField) Equals(input *SlackAttachmentField) bool {
if s.Title != input.Title {
return false
}
if s.Value != input.Value {
return false
}
if s.Short != input.Short {
return false
}
return true
}
func StringifySlackFieldValue(a []*SlackAttachment) []*SlackAttachment {
var nonNilAttachments []*SlackAttachment
for _, attachment := range a {
if attachment == nil {
continue
}
nonNilAttachments = append(nonNilAttachments, attachment)
var nonNilFields []*SlackAttachmentField
for _, field := range attachment.Fields {
if field == nil {
continue
}
nonNilFields = append(nonNilFields, field)
if field.Value != nil {
// Ensure the value is set to a string if it is set
field.Value = fmt.Sprintf("%v", field.Value)
}
}
attachment.Fields = nonNilFields
}
return nonNilAttachments
}
// This method only parses and processes the attachments,
// all else should be set in the post which is passed
func ParseSlackAttachment(post *Post, attachments []*SlackAttachment) {
if post.Type == "" {
post.Type = PostTypeSlackAttachment
}
postAttachments := []*SlackAttachment{}
for _, attachment := range attachments {
if attachment == nil {
continue
}
attachment.Text = ParseSlackLinksToMarkdown(attachment.Text)
attachment.Pretext = ParseSlackLinksToMarkdown(attachment.Pretext)
for _, field := range attachment.Fields {
if field == nil {
continue
}
if value, ok := field.Value.(string); ok {
field.Value = ParseSlackLinksToMarkdown(value)
}
}
postAttachments = append(postAttachments, attachment)
}
post.AddProp("attachments", postAttachments)
}
func ParseSlackLinksToMarkdown(text string) string {
return linkWithTextRegex.ReplaceAllString(text, "[${2}](${1})")
}
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