ec1f89217a
Full Mattermost server source with integrated Community Enterprise features. Includes vendor directory for offline/air-gapped builds. Structure: - enterprise-impl/: Enterprise feature implementations - enterprise-community/: Init files that register implementations - enterprise/: Bridge imports (community_imports.go) - vendor/: All dependencies for offline builds Build (online): go build ./cmd/mattermost Build (offline/air-gapped): go build -mod=vendor ./cmd/mattermost 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
71 lines
3.0 KiB
Go
71 lines
3.0 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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"github.com/mattermost/mattermost/server/public/model"
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"github.com/mattermost/mattermost/server/public/shared/request"
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"github.com/mattermost/mattermost/server/public/utils"
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)
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func (a *App) processPostFileChanges(rctx request.CTX, newPost, oldPost *model.Post, updatePostOptions *model.UpdatePostOptions) (model.StringArray, *model.AppError) {
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newFileIDs := model.RemoveDuplicateStrings(newPost.FileIds)
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oldFileIDs := model.RemoveDuplicateStrings(oldPost.FileIds)
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addedFileIDs, removedFileIDs, unchangedFileIDs := utils.FindExclusives(newFileIDs, oldFileIDs)
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if len(addedFileIDs) > 0 {
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if updatePostOptions != nil && updatePostOptions.IsRestorePost {
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err := a.Srv().Store().FileInfo().RestoreForPostByIds(rctx, newPost.Id, addedFileIDs)
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if err != nil {
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return nil, model.NewAppError("app.processPostFileChanges", "app.file_info.undelete_for_post_ids.app_error", map[string]any{"post_id": newPost.Id}, "", 0).Wrap(err)
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}
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} else {
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a.attachNewFilesToPost(rctx, newPost, addedFileIDs, unchangedFileIDs)
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}
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}
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if len(removedFileIDs) > 0 {
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if appErr := a.detachFilesFromPost(rctx, newPost.Id, removedFileIDs); appErr != nil {
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return nil, appErr
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}
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}
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filesChanged := len(addedFileIDs) > 0 || len(removedFileIDs) > 0
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if filesChanged {
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// if files were modified, invalidate the file metadata cache for the post
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// so that the updated file metadata can be returned.
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a.Srv().Store().FileInfo().InvalidateFileInfosForPostCache(newPost.Id, false)
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}
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return newPost.FileIds, nil
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}
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func (a *App) attachNewFilesToPost(rctx request.CTX, post *model.Post, addedFileIDs, unchangedFileIDs []string) {
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// for newly added files, we need to attach them to the post
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// intentionally using UserID from session instead of post.UserID
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// to support admin attaching files in someone else's post.
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// Admins can edit other's posts, including message, removing existing files,
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// and attaching new files.
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// When an admin uploads new files, they are associated with their user ID. So, when attaching
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// these file to a post, we need to search for their FileInfo entry
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// by the admin's user ID and not the post author's user ID.
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userId := rctx.Session().UserId
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attachedFileIDs := a.attachFileIDsToPost(rctx, post.Id, post.ChannelId, userId, addedFileIDs)
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if len(attachedFileIDs) != len(addedFileIDs) {
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// if not all files could be attached, the final list of files
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// is those that could be attached + the existing, unchanged files
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post.FileIds = append(attachedFileIDs, unchangedFileIDs...)
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}
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}
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func (a *App) detachFilesFromPost(rctx request.CTX, postId string, removedFileIDs []string) *model.AppError {
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if err := a.Srv().Store().FileInfo().DeleteForPostByIds(rctx, postId, removedFileIDs); err != nil {
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return model.NewAppError("app.detachFilesFromPost", "app.file_info.delete_for_post_ids.app_error", map[string]any{"post_id": postId}, "", 0).Wrap(err)
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}
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return nil
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}
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