mirror of
https://github.com/mattermost/mattermost.git
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788c130774
* Moving slack importer into a service * Adding missed license headers * Fixing tests * Adding license header
100 lines
3.4 KiB
Go
100 lines
3.4 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package app
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import (
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"bytes"
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"mime/multipart"
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"regexp"
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"fmt"
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"strings"
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"github.com/mattermost/mattermost-server/v5/model"
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"github.com/mattermost/mattermost-server/v5/services/slackimport"
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"github.com/mattermost/mattermost-server/v5/store"
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)
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func (a *App) SlackImport(fileData multipart.File, fileSize int64, teamID string) (*model.AppError, *bytes.Buffer) {
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actions := slackimport.Actions{
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UpdateActive: a.UpdateActive,
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AddUserToChannel: a.AddUserToChannel,
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JoinUserToTeam: a.JoinUserToTeam,
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CreateDirectChannel: a.createDirectChannel,
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CreateGroupChannel: a.createGroupChannel,
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CreateChannel: a.CreateChannel,
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DoUploadFile: a.DoUploadFile,
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GenerateThumbnailImage: a.generateThumbnailImage,
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GeneratePreviewImage: a.generatePreviewImage,
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InvalidateAllCaches: func() { a.srv.InvalidateAllCaches() },
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MaxPostSize: func() int { return a.srv.MaxPostSize() },
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PrepareImage: prepareImage,
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}
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importer := slackimport.New(a.srv.Store, actions, a.Config())
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return importer.SlackImport(fileData, fileSize, teamID)
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}
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func (a *App) ProcessSlackText(text string) string {
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text = expandAnnouncement(text)
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text = replaceUserIds(a.Srv().Store.User(), text)
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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 (a *App) ProcessSlackAttachments(attachments []*model.SlackAttachment) []*model.SlackAttachment {
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var nonNilAttachments = model.StringifySlackFieldValue(attachments)
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for _, attachment := range attachments {
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attachment.Pretext = a.ProcessSlackText(attachment.Pretext)
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attachment.Text = a.ProcessSlackText(attachment.Text)
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attachment.Title = a.ProcessSlackText(attachment.Title)
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for _, field := range attachment.Fields {
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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 = a.ProcessSlackText(fmt.Sprintf("%v", field.Value))
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}
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}
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}
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return nonNilAttachments
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}
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// To mention @channel or @here via a webhook in Slack, the message should contain
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// <!channel> or <!here>, 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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a1 := [3]string{"<!channel>", "<!here>", "<!all>"}
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a2 := [3]string{"@channel", "@here", "@all"}
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for i, a := range a1 {
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text = strings.Replace(text, a, a2[i], -1)
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}
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return text
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}
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// Replaces user IDs mentioned like this <@userID> to a normal username (eg. @bob)
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// This is required so that Mattermost maintains Slack compatibility
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// Refer to: https://api.slack.com/changelog/2017-09-the-one-about-usernames
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func replaceUserIds(userStore store.UserStore, text string) string {
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rgx, err := regexp.Compile("<@([a-zA-Z0-9]+)>")
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if err == nil {
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userIds := make([]string, 0)
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matches := rgx.FindAllStringSubmatch(text, -1)
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for _, match := range matches {
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userIds = append(userIds, match[1])
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}
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if users, err := userStore.GetProfileByIds(userIds, nil, true); err == nil {
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for _, user := range users {
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text = strings.Replace(text, "<@"+user.Id+">", "@"+user.Username, -1)
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}
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}
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}
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return text
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}
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