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import ( "bytes" "fmt" "net/http" "strconv" "strings" "time"
comatproto "github.com/bluesky-social/indigo/api/atproto" "github.com/bluesky-social/indigo/atproto/syntax" lexutil "github.com/bluesky-social/indigo/lex/util" indigoxrpc "github.com/bluesky-social/indigo/xrpc" "github.com/ipfs/go-cid" "github.com/multiformats/go-multihash"
"tangled.org/core/api/tangled" "tangled.org/core/appview/db" "tangled.org/core/appview/models" "tangled.org/core/appview/pages" "tangled.org/core/orm" "tangled.org/core/tid")
func (s *State) CommentBodyFragment(w http.ResponseWriter, r *http.Request) { l := s.logger.With("handler", "CommentBodyFragment") user := s.oauth.GetMultiAccountUser(r)
commentAt := r.URL.Query().Get("aturi") comment, err := db.GetComment(s.db, orm.FilterEq("at_uri", commentAt)) if err != nil { l.Error("failed to fetch comment", "aturi", commentAt) http.Error(w, "Failed to fetch comment", http.StatusInternalServerError) return }
reactions, err := db.GetReactionMap(s.db, 20, comment.FeedCommentAtUri()) if err != nil { l.Error("failed to get reactions", "err", err) } var userReactions map[models.ReactionKind]bool if user != nil { userReactions, err = db.GetReactionStatusMap(s.db, syntax.DID(user.Did), comment.FeedCommentAtUri()) if err != nil { l.Error("failed to get user reactions", "err", err) } }
err = s.pages.CommentBodyFragment(w, pages.CommentBodyFragmentParams{ Comment: comment, Reactions: reactions, UserReacted: userReactions, }) if err != nil { l.Error("failed to render") }}
func (s *State) EditCommentFragment(w http.ResponseWriter, r *http.Request) { l := s.logger.With("handler", "EditCommentFragment")
commentAt := r.URL.Query().Get("aturi") comment, err := db.GetComment(s.db, orm.FilterEq("at_uri", commentAt)) if err != nil { l.Error("failed to fetch comment", "aturi", commentAt) http.Error(w, "Failed to fetch comment", http.StatusInternalServerError) return }
err = s.pages.EditCommentFragment(w, pages.EditCommentFragmentParams{ Comment: comment, }) if err != nil { l.Error("failed to render", "err", err) }}
func (s *State) NewReplyCommentFragment(w http.ResponseWriter, r *http.Request) { s.pages.ReplyCommentFragment(w, pages.ReplyCommentFragmentParams{ BaseParams: pages.BaseParamsFromContext(r.Context()), })}
func (s *State) ReplyPlaceholderFragment(w http.ResponseWriter, r *http.Request) { s.pages.ReplyPlaceholderFragment(w, pages.ReplyPlaceholderFragmentParams{ BaseParams: pages.BaseParamsFromContext(r.Context()), })}
func (s *State) NewComment(w http.ResponseWriter, r *http.Request) { l := s.logger.With("handler", "NewComment") user := s.oauth.GetMultiAccountUser(r)
noticeId := "comment-error" ctx := r.Context()
var pullRoundIdx *int if pullRoundIdxRaw := r.FormValue("pull-round-idx"); pullRoundIdxRaw != "" { roundIdx, err := strconv.Atoi(pullRoundIdxRaw) if err != nil { l.Warn("invalid round idx", "err", err) s.pages.Notice(w, noticeId, "pull round index should be valid integer") return } pullRoundIdx = &roundIdx noticeId = fmt.Sprintf("comment-error-%d", roundIdx) }
body := r.FormValue("body") if body == "" { s.pages.Notice(w, noticeId, "Body is required") return }
// TODO(boltless): normalize markdown body normalizedBody := body mentions, references := s.mentionsResolver.Resolve(ctx, body)
markdownBody := tangled.MarkupMarkdown{ Text: normalizedBody, Original: &body, Blobs: models.ParseBlobs(r.PostForm["blobs"], normalizedBody), }
subjectUri, err := syntax.ParseATURI(r.FormValue("subject-uri")) if err != nil { l.Warn("invalid subject uri", "err", err) s.pages.Notice(w, noticeId, "Subject URI should be valid AT-URI") return } l = l.With("subject.uri", subjectUri)
// ingest CID of subject record on-demand. // TODO(boltless): appview should ingest CID of all atproto records var subjectCid syntax.CID if subjectCidRaw := r.FormValue("subject-cid"); subjectCidRaw != "" { subjectCid, err = syntax.ParseCID(subjectCidRaw) if err != nil { l.Warn("invalid subject cid", "err", err) s.pages.Notice(w, noticeId, "Subject CID should be valid CID") return } } else { l.Debug("fetching subject record CID") subjectCid, err = func(uri syntax.ATURI) (syntax.CID, error) { ident, err := s.idResolver.ResolveIdent(ctx, uri.Authority().String()) if err != nil { return "", err }
xrpcc := indigoxrpc.Client{Host: ident.PDSEndpoint()} out, err := comatproto.RepoGetRecord(ctx, &xrpcc, "", uri.Collection().String(), ident.DID.String(), uri.RecordKey().String()) if err != nil { return "", err } if out.Cid == nil { return "", fmt.Errorf("record CID is empty") }
cid, err := syntax.ParseCID(*out.Cid) if err != nil { return "", err }
return cid, nil }(subjectUri) if err != nil { l.Error("failed to backfill subject record", "err", err) s.pages.Notice(w, noticeId, "failed to backfill subject record") return } } l = l.With("subject.cid", subjectCid)
subject := comatproto.RepoStrongRef{ Uri: subjectUri.String(), Cid: subjectCid.String(), }
var replyTo *comatproto.RepoStrongRef replyToUriRaw := r.FormValue("reply-to-uri") replyToCidRaw := r.FormValue("reply-to-cid") if replyToUriRaw != "" { replyToUri, err := syntax.ParseATURI(replyToUriRaw) if err != nil { s.pages.Notice(w, noticeId, "reply-to-uri should be valid AT-URI") return } // force replyTo.uri to `sh.tangled.feed.comment` collection, even when they aren't. // we are expecting parent comment will be migrated later. replyToUri = syntax.ATURI(fmt.Sprintf("at://%s/%s/%s", replyToUri.Authority(), tangled.FeedCommentNSID, replyToUri.RecordKey()))
var replyToCid syntax.CID if replyToCidRaw != "" { replyToCid, err = syntax.ParseCID(replyToCidRaw) if err != nil { s.pages.Notice(w, noticeId, "reply-to-cid should be valid CID") return } } else { // guess parent comment cid subjectComment, err := db.GetComment(s.db, orm.FilterEq("did", replyToUri.Authority()), orm.FilterEq("rkey", replyToUri.RecordKey())) if err != nil { l.Warn("db: failed to query subject comment", "err", err) s.pages.Notice(w, noticeId, "Subject record is unknown.") return } if subjectComment.Deleted != nil { // leave cid empty. reply comment won't pass the schema validation. } else { // guess cid from content c, err := func() (cid.Cid, error) { buf := new(bytes.Buffer) if subjectComment.Subject.Cid == "" { subjectComment.Subject.Cid = subject.Cid } if err := subjectComment.AsRecord().MarshalCBOR(buf); err != nil { return cid.Undef, fmt.Errorf("MarshalCBOR: %w", err) } return cid.NewPrefixV1(cid.DagCBOR, multihash.SHA2_256).Sum(buf.Bytes()) }() if err != nil { l.Warn("cbor: failed to guess parent comment cid", "err", err) s.pages.Notice(w, noticeId, "Parent comment is invalid.") return } replyToCid = syntax.CID(c.String()) } } replyTo = &comatproto.RepoStrongRef{ Uri: replyToUri.String(), Cid: replyToCid.String(), } }
comment := models.Comment{ Did: syntax.DID(user.Did), Collection: tangled.FeedCommentNSID, Rkey: syntax.RecordKey(tid.TID()),
Subject: subject, Body: markdownBody, Created: time.Now(), ReplyTo: replyTo, PullRoundIdx: pullRoundIdx, } if err = comment.Validate(); err != nil { l.Error("failed to validate comment", "err", err) s.pages.Notice(w, noticeId, "Failed to create comment.") return }
client, err := s.oauth.AuthorizedClient(r) if err != nil { l.Error("failed to get authorized client", "err", err) s.pages.Notice(w, noticeId, "Failed to create comment.") return }
// create a record first out, err := comatproto.RepoPutRecord(ctx, client, &comatproto.RepoPutRecord_Input{ Collection: comment.Collection.String(), Repo: comment.Did.String(), Rkey: comment.Rkey.String(), Record: &lexutil.LexiconTypeDecoder{Val: comment.AsRecord()}, }) if err != nil { l.Error("failed to create comment", "err", err) s.pages.Notice(w, noticeId, "Failed to create comment.") return }
comment.Cid = syntax.CID(out.Cid)
tx, err := s.db.Begin() if err != nil { l.Error("failed to start transaction", "err", err) s.pages.Notice(w, noticeId, "Failed to create comment, try again later.") return } defer tx.Rollback()
_, err = db.PutComment(tx, &comment, references) if err != nil { l.Error("failed to create comment", "err", err) s.pages.Notice(w, noticeId, "Failed to create comment.") return }
err = tx.Commit() if err != nil { l.Error("failed to commit transaction", "err", err) s.pages.Notice(w, noticeId, "Failed to create comment, try again later.") return }
s.notifier.NewComment(ctx, &comment, mentions)
if pullRoundIdx != nil { var buf bytes.Buffer if err := s.pages.PullCommentFragment(&buf, pages.PullCommentFragmentParams{ LoggedInUser: user, Comment: comment, }); err != nil { l.Error("failed to render pull comment fragment", "err", err) } else { w.Header().Set("Content-Type", "text/html") w.Write(buf.Bytes()) return } }
target, err := s.pages.MakeCommentUrl(ctx, comment.AtUri()) if err != nil { s.pages.HxRefresh(w) }
s.pages.HxLocation(w, target)}
func (s *State) EditComment(w http.ResponseWriter, r *http.Request) { l := s.logger.With("handler", "EditComment") user := s.oauth.GetMultiAccountUser(r)
noticeId := "comment-error" ctx := r.Context()
commentAt := r.FormValue("aturi") comment, err := db.GetComment(s.db, orm.FilterEq("at_uri", commentAt)) if err != nil { l.Error("failed to fetch comment", "aturi", commentAt, "err", err) s.pages.Notice(w, noticeId, "Failed to fetch comment") return }
if comment.Did.String() != user.Did { l.Error("unauthorized comment edit", "expectedDid", comment.Did, "gotDid", user.Did) s.pages.Notice(w, noticeId, "You are not the author of this comment") return }
body := r.FormValue("body") if body == "" { s.pages.Notice(w, noticeId, "Body is required") return }
// TODO(boltless): normalize markdown body normalizedBody := body _, references := s.mentionsResolver.Resolve(ctx, body)
now := time.Now() newComment := comment newComment.Body = tangled.MarkupMarkdown{ Text: normalizedBody, Original: &body, Blobs: nil, } newComment.Edited = &now if err := newComment.Validate(); err != nil { l.Error("failed to validate comment", "err", err) s.pages.Notice(w, noticeId, "Failed to update comment.") return }
client, err := s.oauth.AuthorizedClient(r) if err != nil { l.Error("failed to get authorized client", "err", err) s.pages.Notice(w, noticeId, "Failed to create comment. try again later.") return }
var existingBlobs []*lexutil.LexBlob if strings.Contains(normalizedBody, "blob+at://") { ex, err := comatproto.RepoGetRecord(ctx, client, "", newComment.Collection.String(), newComment.Did.String(), newComment.Rkey.String()) if err != nil { l.Error("failed to read existing comment record for blob pinning", "err", err) s.pages.Notice(w, noticeId, "Failed to update comment, try again later.") return } if ex.Value != nil { if prev, ok := ex.Value.Val.(*tangled.FeedComment); ok && prev.Body != nil && prev.Body.MarkupMarkdown != nil { existingBlobs = prev.Body.MarkupMarkdown.Blobs } } } newComment.Body.Blobs = models.MergeBlobs(existingBlobs, r.PostForm["blobs"], normalizedBody)
// update the record first exCid := comment.Cid.String() out, err := comatproto.RepoPutRecord(ctx, client, &comatproto.RepoPutRecord_Input{ Collection: newComment.Collection.String(), Repo: newComment.Did.String(), Rkey: newComment.Rkey.String(), SwapRecord: &exCid, Record: &lexutil.LexiconTypeDecoder{ Val: newComment.AsRecord(), }, }) if err != nil { l.Error("failed to update comment", "err", err) s.pages.Notice(w, noticeId, "Failed to update comment, try again later.") return }
newComment.Cid = syntax.CID(out.Cid)
tx, err := s.db.Begin() if err != nil { l.Error("failed to start transaction", "err", err) s.pages.Notice(w, noticeId, "Failed to update comment, try again later.") return } defer tx.Rollback()
_, err = db.PutComment(tx, &newComment, references) if err != nil { l.Error("failed to perform update-description query", "err", err) s.pages.Notice(w, noticeId, "Failed to update comment, try again later.") return } err = tx.Commit() if err != nil { l.Error("failed to commit transaction", "err", err) s.pages.Notice(w, noticeId, "Failed to update comment, try again later.") return }
reactions, err := db.GetReactionMap(s.db, 20, comment.FeedCommentAtUri()) if err != nil { l.Error("failed to get reactions", "err", err) } userReactions, err := db.GetReactionStatusMap(s.db, syntax.DID(user.Did), comment.FeedCommentAtUri()) if err != nil { l.Error("failed to get user reactions", "err", err) }
// TODO: return full comment fragment so we can update comment header too s.pages.CommentBodyFragment(w, pages.CommentBodyFragmentParams{ Comment: newComment, Reactions: reactions, UserReacted: userReactions, })}
func (s *State) DeleteComment(w http.ResponseWriter, r *http.Request) { l := s.logger.With("handler", "DeleteComment") user := s.oauth.GetMultiAccountUser(r)
noticeId := "comment" ctx := r.Context()
commentAt := r.URL.Query().Get("aturi") comment, err := db.GetComment(s.db, orm.FilterEq("at_uri", commentAt)) if err != nil { l.Error("failed to fetch comment", "aturi", commentAt) s.pages.Notice(w, noticeId, "Failed to fetch comment.") return }
if comment.Did.String() != user.Did { l.Error("unauthorized action", "expectedDid", comment.Did, "gotDid", user.Did) s.pages.Notice(w, noticeId, "you are not the author of this comment") return }
if comment.Deleted != nil { s.pages.Notice(w, noticeId, "Comment already deleted") return }
client, err := s.oauth.AuthorizedClient(r) if err != nil { l.Error("failed to get authorized client", "err", err) s.pages.Notice(w, "comment", "Failed to delete comment.") return } _, err = comatproto.RepoDeleteRecord(ctx, client, &comatproto.RepoDeleteRecord_Input{ Collection: comment.Collection.String(), Repo: comment.Did.String(), Rkey: comment.Rkey.String(), }) if err != nil { l.Error("failed to delete from PDS", "err", err) s.pages.Notice(w, noticeId, "Failed to delete comment, try again later.") return }
// optimistic update for htmx response now := time.Now() comment.Body = tangled.MarkupMarkdown{} comment.Deleted = &now
s.pages.CommentBodyFragment(w, pages.CommentBodyFragmentParams{ Comment: comment, }) s.pages.CommentHeaderFragment(w, pages.CommentHeaderFragmentParams{ Comment: comment, HxSwapOob: true, })}