package website import ( "context" "errors" "fmt" "net/http" "strconv" "strings" "time" "git.handmade.network/hmn/hmn/src/db" "git.handmade.network/hmn/hmn/src/hmndata" "git.handmade.network/hmn/hmn/src/hmnurl" "git.handmade.network/hmn/hmn/src/logging" "git.handmade.network/hmn/hmn/src/models" "git.handmade.network/hmn/hmn/src/oops" "git.handmade.network/hmn/hmn/src/templates" "git.handmade.network/hmn/hmn/src/utils" ) type forumData struct { templates.BaseData NewThreadUrl string MarkReadUrl string Threads []templates.ThreadListItem Pagination templates.Pagination Subforums []forumSubforumData } type forumSubforumData struct { Name string Url string Threads []templates.ThreadListItem TotalThreads int } type editorData struct { templates.BaseData SubmitUrl string SubmitLabel string // The following are filled out automatically by the // getEditorDataFor* functions. Title string CanEditTitle bool IsEditing bool EditInitialContents string PostReplyingTo *templates.Post MaxFileSize int UploadUrl string } func getEditorDataForNew(urlContext *hmnurl.UrlContext, currentUser *models.User, baseData templates.BaseData, replyPost *templates.Post) editorData { result := editorData{ BaseData: baseData, CanEditTitle: replyPost == nil, PostReplyingTo: replyPost, MaxFileSize: AssetMaxSize(currentUser), UploadUrl: urlContext.BuildAssetUpload(), } if replyPost != nil { result.Title = "Replying to post" } return result } func getEditorDataForEdit(urlContext *hmnurl.UrlContext, currentUser *models.User, baseData templates.BaseData, p hmndata.PostAndStuff) editorData { return editorData{ BaseData: baseData, Title: p.Thread.Title, CanEditTitle: p.Thread.FirstID == p.Post.ID, IsEditing: true, EditInitialContents: p.CurrentVersion.TextRaw, MaxFileSize: AssetMaxSize(currentUser), UploadUrl: urlContext.BuildAssetUpload(), } } func Forum(c *RequestContext) ResponseData { const threadsPerPage = 25 cd, ok := getCommonForumData(c) if !ok { return FourOhFour(c) } currentSubforumSlugs := cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID) numThreads, err := hmndata.CountThreads(c.Context(), c.Conn, c.CurrentUser, hmndata.ThreadsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadTypes: []models.ThreadType{models.ThreadTypeForumPost}, SubforumIDs: []int{cd.SubforumID}, }) if err != nil { panic(oops.New(err, "failed to get count of threads")) } numPages := utils.NumPages(numThreads, threadsPerPage) page, ok := ParsePageNumber(c, "page", numPages) if !ok { c.Redirect(c.UrlContext.BuildForum(currentSubforumSlugs, page), http.StatusSeeOther) } howManyThreadsToSkip := (page - 1) * threadsPerPage mainThreads, err := hmndata.FetchThreads(c.Context(), c.Conn, c.CurrentUser, hmndata.ThreadsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadTypes: []models.ThreadType{models.ThreadTypeForumPost}, SubforumIDs: []int{cd.SubforumID}, Limit: threadsPerPage, Offset: howManyThreadsToSkip, }) makeThreadListItem := func(row hmndata.ThreadAndStuff) templates.ThreadListItem { return templates.ThreadListItem{ Title: row.Thread.Title, Url: c.UrlContext.BuildForumThread(cd.LineageBuilder.GetSubforumLineageSlugs(*row.Thread.SubforumID), row.Thread.ID, row.Thread.Title, 1), FirstUser: templates.UserToTemplate(row.FirstPostAuthor, c.Theme), FirstDate: row.FirstPost.PostDate, LastUser: templates.UserToTemplate(row.LastPostAuthor, c.Theme), LastDate: row.LastPost.PostDate, Unread: row.Unread, } } var threads []templates.ThreadListItem for _, row := range mainThreads { threads = append(threads, makeThreadListItem(row)) } // --------------------- // Subforum things // --------------------- var subforums []forumSubforumData if page == 1 { subforumNodes := cd.SubforumTree[cd.SubforumID].Children for _, sfNode := range subforumNodes { numThreads, err := hmndata.CountThreads(c.Context(), c.Conn, c.CurrentUser, hmndata.ThreadsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadTypes: []models.ThreadType{models.ThreadTypeForumPost}, SubforumIDs: []int{sfNode.ID}, }) if err != nil { panic(oops.New(err, "failed to get count of threads")) } subforumThreads, err := hmndata.FetchThreads(c.Context(), c.Conn, c.CurrentUser, hmndata.ThreadsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadTypes: []models.ThreadType{models.ThreadTypeForumPost}, SubforumIDs: []int{sfNode.ID}, Limit: 3, }) var threads []templates.ThreadListItem for _, row := range subforumThreads { threads = append(threads, makeThreadListItem(row)) } subforums = append(subforums, forumSubforumData{ Name: sfNode.Name, Url: c.UrlContext.BuildForum(cd.LineageBuilder.GetSubforumLineageSlugs(sfNode.ID), 1), Threads: threads, TotalThreads: numThreads, }) } } // --------------------- // Template assembly // --------------------- baseData := getBaseData( c, fmt.Sprintf("%s Forums", c.CurrentProject.Name), SubforumBreadcrumbs(c.UrlContext, cd.LineageBuilder, cd.SubforumID), ) var res ResponseData res.MustWriteTemplate("forum.html", forumData{ BaseData: baseData, NewThreadUrl: c.UrlContext.BuildForumNewThread(currentSubforumSlugs, false), MarkReadUrl: c.UrlContext.BuildForumMarkRead(cd.SubforumID), Threads: threads, Pagination: templates.Pagination{ Current: page, Total: numPages, FirstUrl: c.UrlContext.BuildForum(currentSubforumSlugs, 1), LastUrl: c.UrlContext.BuildForum(currentSubforumSlugs, numPages), NextUrl: c.UrlContext.BuildForum(currentSubforumSlugs, utils.IntClamp(1, page+1, numPages)), PreviousUrl: c.UrlContext.BuildForum(currentSubforumSlugs, utils.IntClamp(1, page-1, numPages)), }, Subforums: subforums, }, c.Perf) return res } func ForumMarkRead(c *RequestContext) ResponseData { c.Perf.StartBlock("SQL", "Fetch subforum tree") subforumTree := models.GetFullSubforumTree(c.Context(), c.Conn) lineageBuilder := models.MakeSubforumLineageBuilder(subforumTree) c.Perf.EndBlock() sfId, err := strconv.Atoi(c.PathParams["sfid"]) if err != nil { return FourOhFour(c) } tx, err := c.Conn.Begin(c.Context()) if err != nil { panic(err) } defer tx.Rollback(c.Context()) sfIds := []int{sfId} if sfId == 0 { // Mark literally everything as read _, err := tx.Exec(c.Context(), ` UPDATE auth_user SET marked_all_read_at = NOW() WHERE id = $1 `, c.CurrentUser.ID, ) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to mark all posts as read")) } // Delete thread unread info _, err = tx.Exec(c.Context(), ` DELETE FROM handmade_threadlastreadinfo WHERE user_id = $1; `, c.CurrentUser.ID, ) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to delete thread unread info")) } // Delete subforum unread info _, err = tx.Exec(c.Context(), ` DELETE FROM handmade_subforumlastreadinfo WHERE user_id = $1; `, c.CurrentUser.ID, ) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to delete subforum unread info")) } } else { c.Perf.StartBlock("SQL", "Update SLRIs") _, err = tx.Exec(c.Context(), ` INSERT INTO handmade_subforumlastreadinfo (subforum_id, user_id, lastread) SELECT id, $2, $3 FROM handmade_subforum WHERE id = ANY ($1) ON CONFLICT (subforum_id, user_id) DO UPDATE SET lastread = EXCLUDED.lastread `, sfIds, c.CurrentUser.ID, time.Now(), ) c.Perf.EndBlock() if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to update forum slris")) } c.Perf.StartBlock("SQL", "Delete TLRIs") _, err = tx.Exec(c.Context(), ` DELETE FROM handmade_threadlastreadinfo WHERE user_id = $2 AND thread_id IN ( SELECT id FROM handmade_thread WHERE subforum_id = ANY ($1) ) `, sfIds, c.CurrentUser.ID, ) c.Perf.EndBlock() if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to delete unnecessary tlris")) } } err = tx.Commit(c.Context()) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to commit SLRI/TLRI updates")) } var redirUrl string if sfId == 0 { redirUrl = hmnurl.BuildFeed() } else { redirUrl = c.UrlContext.BuildForum(lineageBuilder.GetSubforumLineageSlugs(sfId), 1) } return c.Redirect(redirUrl, http.StatusSeeOther) } type forumThreadData struct { templates.BaseData Thread templates.Thread Posts []templates.Post SubforumUrl string ReplyUrl string Pagination templates.Pagination } // How many posts to display on a single page of a forum thread. var threadPostsPerPage = 15 func ForumThread(c *RequestContext) ResponseData { cd, ok := getCommonForumData(c) if !ok { return FourOhFour(c) } currentSubforumSlugs := cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID) threads, err := hmndata.FetchThreads(c.Context(), c.Conn, c.CurrentUser, hmndata.ThreadsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadIDs: []int{cd.ThreadID}, }) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to get thread")) } if len(threads) == 0 { return FourOhFour(c) } threadResult := threads[0] thread := threadResult.Thread numPosts, err := hmndata.CountPosts(c.Context(), c.Conn, c.CurrentUser, hmndata.PostsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadTypes: []models.ThreadType{models.ThreadTypeForumPost}, ThreadIDs: []int{cd.ThreadID}, }) if err != nil { panic(oops.New(err, "failed to get count of posts for thread")) } page, numPages, ok := getPageInfo(c.PathParams["page"], numPosts, threadPostsPerPage) if !ok { urlNoPage := c.UrlContext.BuildForumThread(currentSubforumSlugs, thread.ID, thread.Title, 1) return c.Redirect(urlNoPage, http.StatusSeeOther) } pagination := templates.Pagination{ Current: page, Total: numPages, FirstUrl: c.UrlContext.BuildForumThread(currentSubforumSlugs, thread.ID, thread.Title, 1), LastUrl: c.UrlContext.BuildForumThread(currentSubforumSlugs, thread.ID, thread.Title, numPages), NextUrl: c.UrlContext.BuildForumThread(currentSubforumSlugs, thread.ID, thread.Title, utils.IntClamp(1, page+1, numPages)), PreviousUrl: c.UrlContext.BuildForumThread(currentSubforumSlugs, thread.ID, thread.Title, utils.IntClamp(1, page-1, numPages)), } postsAndStuff, err := hmndata.FetchPosts(c.Context(), c.Conn, c.CurrentUser, hmndata.PostsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadIDs: []int{thread.ID}, Limit: threadPostsPerPage, Offset: (page - 1) * threadPostsPerPage, }) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to fetch thread posts")) } var posts []templates.Post for _, p := range postsAndStuff { post := templates.PostToTemplate(&p.Post, p.Author, c.Theme) post.AddContentVersion(p.CurrentVersion, p.Editor) addForumUrlsToPost(c.UrlContext, &post, currentSubforumSlugs, thread.ID, post.ID) if p.ReplyPost != nil { reply := templates.PostToTemplate(p.ReplyPost, p.ReplyAuthor, c.Theme) addForumUrlsToPost(c.UrlContext, &reply, currentSubforumSlugs, thread.ID, reply.ID) post.ReplyPost = &reply } addAuthorCountsToPost(c.Context(), c.Conn, &post) posts = append(posts, post) } // Update thread last read info if c.CurrentUser != nil { c.Perf.StartBlock("SQL", "Update TLRI") _, err = c.Conn.Exec(c.Context(), ` INSERT INTO handmade_threadlastreadinfo (thread_id, user_id, lastread) VALUES ($1, $2, $3) ON CONFLICT (thread_id, user_id) DO UPDATE SET lastread = EXCLUDED.lastread `, cd.ThreadID, c.CurrentUser.ID, time.Now(), ) c.Perf.EndBlock() if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to update forum tlri")) } } baseData := getBaseData(c, thread.Title, SubforumBreadcrumbs(c.UrlContext, cd.LineageBuilder, cd.SubforumID)) baseData.OpenGraphItems = append(baseData.OpenGraphItems, templates.OpenGraphItem{ Property: "og:description", Value: threadResult.FirstPost.Preview, }) var res ResponseData res.MustWriteTemplate("forum_thread.html", forumThreadData{ BaseData: baseData, Thread: templates.ThreadToTemplate(&thread), Posts: posts, SubforumUrl: c.UrlContext.BuildForum(currentSubforumSlugs, 1), ReplyUrl: c.UrlContext.BuildForumPostReply(currentSubforumSlugs, thread.ID, thread.FirstID), Pagination: pagination, }, c.Perf) return res } func ForumPostRedirect(c *RequestContext) ResponseData { cd, ok := getCommonForumData(c) if !ok { return FourOhFour(c) } posts, err := hmndata.FetchPosts(c.Context(), c.Conn, c.CurrentUser, hmndata.PostsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadTypes: []models.ThreadType{models.ThreadTypeForumPost}, ThreadIDs: []int{cd.ThreadID}, }) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to fetch posts for redirect")) } var post hmndata.PostAndStuff postIdx := -1 for i, p := range posts { if p.Post.ID == cd.PostID { post = p postIdx = i break } } if postIdx == -1 { return FourOhFour(c) } page := (postIdx / threadPostsPerPage) + 1 return c.Redirect(c.UrlContext.BuildForumThreadWithPostHash( cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID), cd.ThreadID, post.Thread.Title, page, cd.PostID, ), http.StatusSeeOther) } func ForumNewThread(c *RequestContext) ResponseData { cd, ok := getCommonForumData(c) if !ok { return FourOhFour(c) } baseData := getBaseData(c, "Create New Thread", SubforumBreadcrumbs(c.UrlContext, cd.LineageBuilder, cd.SubforumID)) editData := getEditorDataForNew(c.UrlContext, c.CurrentUser, baseData, nil) editData.SubmitUrl = c.UrlContext.BuildForumNewThread(cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID), true) editData.SubmitLabel = "Post New Thread" var res ResponseData res.MustWriteTemplate("editor.html", editData, c.Perf) return res } func ForumNewThreadSubmit(c *RequestContext) ResponseData { tx, err := c.Conn.Begin(c.Context()) if err != nil { panic(err) } defer tx.Rollback(c.Context()) cd, ok := getCommonForumData(c) if !ok { return FourOhFour(c) } err = c.Req.ParseForm() if err != nil { return c.ErrorResponse(http.StatusBadRequest, oops.New(err, "the form data was invalid")) } title := c.Req.Form.Get("title") unparsed := c.Req.Form.Get("body") sticky := false if c.CurrentUser.IsStaff && c.Req.Form.Get("sticky") != "" { sticky = true } if title == "" { return RejectRequest(c, "You must provide a title for your post.") } if unparsed == "" { return RejectRequest(c, "You must provide a body for your post.") } // Create thread var threadId int err = tx.QueryRow(c.Context(), ` INSERT INTO handmade_thread (title, sticky, type, project_id, subforum_id, first_id, last_id) VALUES ($1, $2, $3, $4, $5, $6, $7) RETURNING id `, title, sticky, models.ThreadTypeForumPost, c.CurrentProject.ID, cd.SubforumID, -1, -1, ).Scan(&threadId) if err != nil { panic(oops.New(err, "failed to create thread")) } // Create everything else hmndata.CreateNewPost(c.Context(), tx, c.CurrentProject.ID, threadId, models.ThreadTypeForumPost, c.CurrentUser.ID, nil, unparsed, c.Req.Host) err = tx.Commit(c.Context()) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to create new forum thread")) } newThreadUrl := c.UrlContext.BuildForumThread(cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID), threadId, title, 1) return c.Redirect(newThreadUrl, http.StatusSeeOther) } func ForumPostReply(c *RequestContext) ResponseData { cd, ok := getCommonForumData(c) if !ok { return FourOhFour(c) } post, err := hmndata.FetchThreadPost(c.Context(), c.Conn, c.CurrentUser, cd.ThreadID, cd.PostID, hmndata.PostsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadTypes: []models.ThreadType{models.ThreadTypeForumPost}, }) if errors.Is(err, db.NotFound) { return FourOhFour(c) } else if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to fetch post for reply")) } baseData := getBaseData( c, fmt.Sprintf("Replying to post | %s", cd.SubforumTree[cd.SubforumID].Name), ForumThreadBreadcrumbs(c.UrlContext, cd.LineageBuilder, &post.Thread), ) replyPost := templates.PostToTemplate(&post.Post, post.Author, c.Theme) replyPost.AddContentVersion(post.CurrentVersion, post.Editor) editData := getEditorDataForNew(c.UrlContext, c.CurrentUser, baseData, &replyPost) editData.SubmitUrl = c.UrlContext.BuildForumPostReply(cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID), cd.ThreadID, cd.PostID) editData.SubmitLabel = "Submit Reply" var res ResponseData res.MustWriteTemplate("editor.html", editData, c.Perf) return res } func ForumPostReplySubmit(c *RequestContext) ResponseData { cd, ok := getCommonForumData(c) if !ok { return FourOhFour(c) } tx, err := c.Conn.Begin(c.Context()) if err != nil { panic(err) } defer tx.Rollback(c.Context()) err = c.Req.ParseForm() if err != nil { return c.ErrorResponse(http.StatusBadRequest, oops.New(nil, "the form data was invalid")) } unparsed := c.Req.Form.Get("body") if unparsed == "" { return RejectRequest(c, "Your reply cannot be empty.") } post, err := hmndata.FetchThreadPost(c.Context(), c.Conn, c.CurrentUser, cd.ThreadID, cd.PostID, hmndata.PostsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadTypes: []models.ThreadType{models.ThreadTypeForumPost}, }) if errors.Is(err, db.NotFound) { return FourOhFour(c) } // Replies to the OP should not be considered replies var replyPostId *int if cd.PostID != post.Thread.FirstID { replyPostId = &cd.PostID } newPostId, _ := hmndata.CreateNewPost(c.Context(), tx, c.CurrentProject.ID, cd.ThreadID, models.ThreadTypeForumPost, c.CurrentUser.ID, replyPostId, unparsed, c.Req.Host) err = tx.Commit(c.Context()) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to reply to forum post")) } newPostUrl := c.UrlContext.BuildForumPost(cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID), cd.ThreadID, newPostId) return c.Redirect(newPostUrl, http.StatusSeeOther) } func ForumPostEdit(c *RequestContext) ResponseData { cd, ok := getCommonForumData(c) if !ok { return FourOhFour(c) } if !hmndata.UserCanEditPost(c.Context(), c.Conn, *c.CurrentUser, cd.PostID) { return FourOhFour(c) } post, err := hmndata.FetchThreadPost(c.Context(), c.Conn, c.CurrentUser, cd.ThreadID, cd.PostID, hmndata.PostsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadTypes: []models.ThreadType{models.ThreadTypeForumPost}, }) if errors.Is(err, db.NotFound) { return FourOhFour(c) } else if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to fetch post for editing")) } title := "" if post.Thread.FirstID == post.Post.ID { title = fmt.Sprintf("Editing \"%s\" | %s", post.Thread.Title, cd.SubforumTree[cd.SubforumID].Name) } else { title = fmt.Sprintf("Editing Post | %s", cd.SubforumTree[cd.SubforumID].Name) } baseData := getBaseData(c, title, ForumThreadBreadcrumbs(c.UrlContext, cd.LineageBuilder, &post.Thread)) editData := getEditorDataForEdit(c.UrlContext, c.CurrentUser, baseData, post) editData.SubmitUrl = c.UrlContext.BuildForumPostEdit(cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID), cd.ThreadID, cd.PostID) editData.SubmitLabel = "Submit Edited Post" var res ResponseData res.MustWriteTemplate("editor.html", editData, c.Perf) return res } func ForumPostEditSubmit(c *RequestContext) ResponseData { cd, ok := getCommonForumData(c) if !ok { return FourOhFour(c) } if !hmndata.UserCanEditPost(c.Context(), c.Conn, *c.CurrentUser, cd.PostID) { return FourOhFour(c) } tx, err := c.Conn.Begin(c.Context()) if err != nil { panic(err) } defer tx.Rollback(c.Context()) post, err := hmndata.FetchThreadPost(c.Context(), tx, c.CurrentUser, cd.ThreadID, cd.PostID, hmndata.PostsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadTypes: []models.ThreadType{models.ThreadTypeForumPost}, }) if errors.Is(err, db.NotFound) { return FourOhFour(c) } else if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to get forum post to submit edits")) } c.Req.ParseForm() title := c.Req.Form.Get("title") unparsed := c.Req.Form.Get("body") editReason := c.Req.Form.Get("editreason") if title != "" && post.Thread.FirstID != post.Post.ID { return RejectRequest(c, "You can only edit the title by editing the first post.") } if unparsed == "" { return RejectRequest(c, "You must provide a body for your post.") } hmndata.CreatePostVersion(c.Context(), tx, cd.PostID, unparsed, c.Req.Host, editReason, &c.CurrentUser.ID) if title != "" { _, err := tx.Exec(c.Context(), ` UPDATE handmade_thread SET title = $1 WHERE id = $2 `, title, post.Thread.ID, ) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to update thread title")) } } err = tx.Commit(c.Context()) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to edit forum post")) } postUrl := c.UrlContext.BuildForumPost(cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID), cd.ThreadID, cd.PostID) return c.Redirect(postUrl, http.StatusSeeOther) } func ForumPostDelete(c *RequestContext) ResponseData { cd, ok := getCommonForumData(c) if !ok { return FourOhFour(c) } if !hmndata.UserCanEditPost(c.Context(), c.Conn, *c.CurrentUser, cd.PostID) { return FourOhFour(c) } post, err := hmndata.FetchThreadPost(c.Context(), c.Conn, c.CurrentUser, cd.ThreadID, cd.PostID, hmndata.PostsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, ThreadTypes: []models.ThreadType{models.ThreadTypeForumPost}, }) if errors.Is(err, db.NotFound) { return FourOhFour(c) } else if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to fetch post for delete")) } baseData := getBaseData( c, fmt.Sprintf("Deleting post in \"%s\" | %s", post.Thread.Title, cd.SubforumTree[cd.SubforumID].Name), ForumThreadBreadcrumbs(c.UrlContext, cd.LineageBuilder, &post.Thread), ) templatePost := templates.PostToTemplate(&post.Post, post.Author, c.Theme) templatePost.AddContentVersion(post.CurrentVersion, post.Editor) type forumPostDeleteData struct { templates.BaseData Post templates.Post SubmitUrl string } var res ResponseData res.MustWriteTemplate("forum_post_delete.html", forumPostDeleteData{ BaseData: baseData, SubmitUrl: c.UrlContext.BuildForumPostDelete(cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID), cd.ThreadID, cd.PostID), Post: templatePost, }, c.Perf) return res } func ForumPostDeleteSubmit(c *RequestContext) ResponseData { cd, ok := getCommonForumData(c) if !ok { return FourOhFour(c) } if !hmndata.UserCanEditPost(c.Context(), c.Conn, *c.CurrentUser, cd.PostID) { return FourOhFour(c) } tx, err := c.Conn.Begin(c.Context()) if err != nil { panic(err) } defer tx.Rollback(c.Context()) threadDeleted := hmndata.DeletePost(c.Context(), tx, cd.ThreadID, cd.PostID) err = tx.Commit(c.Context()) if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to delete post")) } if threadDeleted { forumUrl := c.UrlContext.BuildForum(cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID), 1) return c.Redirect(forumUrl, http.StatusSeeOther) } else { threadUrl := c.UrlContext.BuildForumThread(cd.LineageBuilder.GetSubforumLineageSlugs(cd.SubforumID), cd.ThreadID, "", 1) // TODO: Go to the last page of the thread? Or the post before the post we just deleted? return c.Redirect(threadUrl, http.StatusSeeOther) } } func WikiArticleRedirect(c *RequestContext) ResponseData { threadIdStr := c.PathParams["threadid"] threadId, err := strconv.Atoi(threadIdStr) if err != nil { panic(err) } thread, err := hmndata.FetchThread(c.Context(), c.Conn, c.CurrentUser, threadId, hmndata.ThreadsQuery{ ProjectIDs: []int{c.CurrentProject.ID}, // This is the rare query where we want all thread types! }) if errors.Is(err, db.NotFound) { return FourOhFour(c) } else if err != nil { return c.ErrorResponse(http.StatusInternalServerError, oops.New(err, "failed to look up wiki thread")) } c.Perf.StartBlock("SQL", "Fetch subforum tree") subforumTree := models.GetFullSubforumTree(c.Context(), c.Conn) lineageBuilder := models.MakeSubforumLineageBuilder(subforumTree) c.Perf.EndBlock() dest := UrlForGenericThread(c.UrlContext, &thread.Thread, lineageBuilder) return c.Redirect(dest, http.StatusFound) } type commonForumData struct { c *RequestContext SubforumID int ThreadID int PostID int SubforumTree models.SubforumTree LineageBuilder *models.SubforumLineageBuilder } /* Gets data that is used on basically every forums-related route. Parses path params for subforum, thread, and post ids. Does NOT validate that the requested thread and post ID are valid. If this returns false, then something was malformed and you should 404. */ func getCommonForumData(c *RequestContext) (commonForumData, bool) { c.Perf.StartBlock("FORUMS", "Fetch common forum data") defer c.Perf.EndBlock() c.Perf.StartBlock("SQL", "Fetch subforum tree") subforumTree := models.GetFullSubforumTree(c.Context(), c.Conn) lineageBuilder := models.MakeSubforumLineageBuilder(subforumTree) c.Perf.EndBlock() res := commonForumData{ c: c, SubforumTree: subforumTree, LineageBuilder: lineageBuilder, } if subforums, hasSubforums := c.PathParams["subforums"]; hasSubforums { sfId, valid := validateSubforums(lineageBuilder, c.CurrentProject, subforums) if !valid { return commonForumData{}, false } res.SubforumID = sfId } if threadIdStr, hasThreadId := c.PathParams["threadid"]; hasThreadId { threadId, err := strconv.Atoi(threadIdStr) if err != nil { return commonForumData{}, false } res.ThreadID = threadId } if postIdStr, hasPostId := c.PathParams["postid"]; hasPostId { postId, err := strconv.Atoi(postIdStr) if err != nil { return commonForumData{}, false } res.PostID = postId } return res, true } func validateSubforums(lineageBuilder *models.SubforumLineageBuilder, project *models.Project, sfPath string) (int, bool) { if project.ForumID == nil { return -1, false } subforumId := *project.ForumID if len(sfPath) == 0 { return subforumId, true } sfPath = strings.ToLower(sfPath) valid := false sfSlugs := strings.Split(sfPath, "/") lastSlug := sfSlugs[len(sfSlugs)-1] if len(lastSlug) > 0 { lastSlugSfId := lineageBuilder.FindIdBySlug(project.ID, lastSlug) if lastSlugSfId != -1 { subforumSlugs := lineageBuilder.GetSubforumLineageSlugs(lastSlugSfId) allMatch := true for i, subforum := range subforumSlugs { if subforum != sfSlugs[i] { allMatch = false break } } valid = allMatch } if valid { subforumId = lastSlugSfId } } return subforumId, valid } func addForumUrlsToPost(urlContext *hmnurl.UrlContext, p *templates.Post, subforums []string, threadId int, postId int) { p.Url = urlContext.BuildForumPost(subforums, threadId, postId) p.DeleteUrl = urlContext.BuildForumPostDelete(subforums, threadId, postId) p.EditUrl = urlContext.BuildForumPostEdit(subforums, threadId, postId) p.ReplyUrl = urlContext.BuildForumPostReply(subforums, threadId, postId) } // Takes a template post and adds information about how many posts the user has made // on the site. func addAuthorCountsToPost(ctx context.Context, conn db.ConnOrTx, p *templates.Post) { numPosts, err := db.QueryInt(ctx, conn, ` SELECT COUNT(*) FROM handmade_post AS post JOIN handmade_project AS project ON post.project_id = project.id WHERE post.author_id = $1 AND NOT post.deleted AND project.lifecycle = ANY ($2) `, p.Author.ID, models.VisibleProjectLifecycles, ) if err != nil { logging.ExtractLogger(ctx).Warn().Err(err).Msg("failed to get count of user posts") } else { p.AuthorNumPosts = numPosts } numProjects, err := db.QueryInt(ctx, conn, ` SELECT COUNT(*) FROM handmade_project AS project JOIN handmade_user_projects AS uproj ON uproj.project_id = project.id WHERE project.lifecycle = ANY ($1) AND uproj.user_id = $2 `, models.VisibleProjectLifecycles, p.Author.ID, ) if err != nil { logging.ExtractLogger(ctx).Warn().Err(err).Msg("failed to get count of user projects") } else { p.AuthorNumProjects = numProjects } }