Files
hobokenchicken 40f8d193ff feat: polls with live voting via WebSocket
- /poll command opens creation modal (2-10 options)
- PollDisplay with vote bars, percentages, live WS updates
- Backend: polls/poll_options/poll_votes tables, Create/Get/Vote endpoints
- attachPolls enriches message list responses
- POLL_UPDATE broadcast on vote for real-time sync
2026-07-02 12:35:05 -04:00

1100 lines
32 KiB
Go

package message
import (
"context"
"database/sql"
"encoding/json"
"errors"
"fmt"
"log/slog"
"net/http"
"strconv"
"strings"
"git.dustin.coffee/hobokenchicken/dumpsterChat/internal/embed"
"git.dustin.coffee/hobokenchicken/dumpsterChat/internal/gateway"
"git.dustin.coffee/hobokenchicken/dumpsterChat/internal/middleware"
"git.dustin.coffee/hobokenchicken/dumpsterChat/internal/moderation"
"git.dustin.coffee/hobokenchicken/dumpsterChat/internal/permissions"
"git.dustin.coffee/hobokenchicken/dumpsterChat/internal/push"
"github.com/go-chi/chi/v5"
)
type Handler struct {
db *sql.DB
hub *gateway.Hub
mentions *MentionHandler
pushHandler *push.Handler
logger *slog.Logger
checker *permissions.Checker
}
func NewHandler(db *sql.DB, hub *gateway.Hub, pushHandler *push.Handler, logger *slog.Logger, checker *permissions.Checker) *Handler {
return &Handler{
db: db,
hub: hub,
mentions: NewMentionHandler(db, pushHandler, logger),
pushHandler: pushHandler,
logger: logger,
checker: checker,
}
}
func (h *Handler) RegisterRoutes(r chi.Router) {
r.Get("/", h.List)
r.Post("/", h.Create)
r.Get("/search", h.Search)
r.Post("/bulk-delete", h.BulkDelete)
r.Patch("/{messageID}", h.Update)
r.Delete("/{messageID}", h.Delete)
r.Get("/pinned", h.ListPinned)
r.Put("/{messageID}/pin", h.Pin)
r.Delete("/{messageID}/pin", h.Unpin)
}
type bulkDeleteRequest struct {
Messages []string `json:"messages"`
}
type bulkDeleteResponse struct {
Deleted int `json:"deleted"`
}
// BulkDelete deletes up to 100 messages in a channel. Requires MANAGE_MESSAGES
// and messages must be within the last 14 days.
func (h *Handler) BulkDelete(w http.ResponseWriter, r *http.Request) {
channelID := chi.URLParam(r, "channelID")
userID, serverID, ok := h.requireChannelAccess(w, r, channelID, 0)
if !ok {
return
}
allowed, err := h.checker.CheckPermission(r.Context(), serverID, userID, permissions.MANAGE_MESSAGES)
if err != nil {
http.Error(w, `{"error":"server error"}`, http.StatusInternalServerError)
return
}
if !allowed {
http.Error(w, `{"error":"forbidden"}`, http.StatusForbidden)
return
}
var req bulkDeleteRequest
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
return
}
if len(req.Messages) == 0 {
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(bulkDeleteResponse{Deleted: 0})
return
}
if len(req.Messages) > 100 {
http.Error(w, `{"error":"too many messages (max 100)"}`, http.StatusBadRequest)
return
}
// ponytail: simple IN query with 14-day guard and channel_id filter in DB.
placeholders := make([]string, len(req.Messages))
args := make([]interface{}, 0, len(req.Messages)+1)
for i, id := range req.Messages {
placeholders[i] = fmt.Sprintf("$%d", i+1)
args = append(args, id)
}
args = append(args, channelID)
query := fmt.Sprintf(`
DELETE FROM messages
WHERE id IN (%s) AND channel_id = $%d AND created_at > NOW() - INTERVAL '14 days'
`, strings.Join(placeholders, ","), len(args))
res, err := h.db.ExecContext(r.Context(), query, args...)
if err != nil {
http.Error(w, `{"error":"failed to delete messages"}`, http.StatusInternalServerError)
return
}
deleted, _ := res.RowsAffected()
if h.hub != nil {
for _, id := range req.Messages {
h.hub.BroadcastToServer(serverID, gateway.Event{
Type: gateway.EventMessageDelete,
Data: map[string]string{
"id": id,
"channel_id": channelID,
},
})
}
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(bulkDeleteResponse{Deleted: int(deleted)})
}
type embedResponse struct {
ID string `json:"id"`
URL string `json:"url"`
Title string `json:"title"`
Description string `json:"description"`
ImageURL string `json:"image_url"`
SiteName string `json:"site_name"`
}
type reactionResponse struct {
ID string `json:"id"`
MessageID string `json:"message_id"`
UserID string `json:"user_id"`
Emoji string `json:"emoji"`
CreatedAt string `json:"created_at"`
}
type emojiGroup struct {
Emoji string `json:"emoji"`
Count int `json:"count"`
Users []string `json:"users"`
Details []reactionResponse `json:"details"`
}
type messageResponse struct {
ID string `json:"id"`
ChannelID string `json:"channel_id"`
AuthorID string `json:"author_id"`
AuthorName string `json:"author_username"`
DisplayName *string `json:"author_display_name"`
Content string `json:"content"`
ReplyTo *string `json:"reply_to,omitempty"`
EditedAt *string `json:"edited_at"`
Pinned bool `json:"pinned"`
CreatedAt string `json:"created_at"`
Embeds []embedResponse `json:"embeds"`
Reactions []emojiGroup `json:"reactions"`
Poll *pollResponse `json:"poll,omitempty"`
}
// isMember checks whether the given user is a member of the given server.
func (h *Handler) isMember(ctx context.Context, userID, serverID string) (bool, error) {
var exists bool
err := h.db.QueryRowContext(ctx, `
SELECT EXISTS(SELECT 1 FROM members WHERE user_id = $1 AND server_id = $2)
`, userID, serverID).Scan(&exists)
return exists, err
}
type createMessageRequest struct {
Content string `json:"content"`
ReplyTo *string `json:"reply_to,omitempty"`
}
// @Summary Create a message
// @Description Send a message to a channel
// @Tags messages
// @Accept json
// @Produce json
// @Security SessionAuth
// @Param channelID path string true "Channel ID"
// @Param body body createMessageRequest true "Message data"
// @Success 201 {object} messageResponse
// @Failure 400 {object} map[string]string
// @Failure 401 {object} map[string]string
// @Failure 403 {object} map[string]string
// @Router /channels/{channelID}/messages [post]
func (h *Handler) Create(w http.ResponseWriter, r *http.Request) {
channelID := chi.URLParam(r, "channelID")
userID, serverID, ok := h.requireChannelAccess(w, r, channelID, permissions.SEND_MESSAGES)
if !ok {
return
}
var req createMessageRequest
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
return
}
if req.Content == "" {
http.Error(w, `{"error":"content is required"}`, http.StatusBadRequest)
return
}
if len(req.Content) > 4000 {
http.Error(w, `{"error":"message too long (max 4000 chars)"}`, http.StatusBadRequest)
return
}
// Check server mute.
muted, err := moderation.IsMuted(r.Context(), h.db, serverID, userID)
if err != nil {
http.Error(w, `{"error":"server error"}`, http.StatusInternalServerError)
return
}
if muted {
http.Error(w, `{"error":"you are muted in this server"}`, http.StatusForbidden)
return
}
// Check slowmode.
if retryAfter, active := h.checkSlowmode(r.Context(), channelID, userID); active {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusTooManyRequests)
json.NewEncoder(w).Encode(map[string]interface{}{
"error": "slowmode",
"retry_after": retryAfter,
"retry_after_ms": retryAfter * 1000,
})
return
}
var msg messageResponse
var editedAt sql.NullString
var createdAt sql.NullString
var replyTo sql.NullString
if req.ReplyTo != nil {
replyTo = sql.NullString{String: *req.ReplyTo, Valid: true}
}
err = h.db.QueryRowContext(r.Context(), `
INSERT INTO messages (channel_id, author_id, content, reply_to)
VALUES ($1, $2, $3, $4)
RETURNING id, channel_id, author_id, content, reply_to::text, edited_at::text, pinned, created_at::text
`, channelID, userID, req.Content, replyTo).Scan(
&msg.ID, &msg.ChannelID, &msg.AuthorID, &msg.Content, &replyTo, &editedAt, &msg.Pinned, &createdAt,
)
if err != nil {
http.Error(w, `{"error":"failed to create message"}`, http.StatusInternalServerError)
return
}
// Fetch author info
err = h.db.QueryRowContext(r.Context(), `
SELECT username, display_name FROM users WHERE id = $1
`, userID).Scan(&msg.AuthorName, &msg.DisplayName)
if err != nil {
http.Error(w, `{"error":"server error"}`, http.StatusInternalServerError)
return
}
if replyTo.Valid {
msg.ReplyTo = &replyTo.String
}
if editedAt.Valid {
msg.EditedAt = &editedAt.String
}
msg.CreatedAt = createdAt.String
msg.Reactions = make([]emojiGroup, 0)
// Broadcast MESSAGE_CREATE event via WebSocket (scoped to server)
h.hub.BroadcastToServer(serverID, gateway.Event{
Type: gateway.EventMessageCreate,
Data: msg,
})
// Dispatch push notifications for @mentions
go h.mentions.ParseAndNotify(r.Context(), channelID, userID, req.Content)
// Dispatch push notifications to channel members
go func() {
var channelName string
_ = h.db.QueryRowContext(context.Background(), `SELECT name FROM channels WHERE id = $1`, channelID).Scan(&channelName)
if channelName == "" {
channelName = channelID
}
if h.pushHandler != nil {
h.pushHandler.SendChannelNotification(context.Background(), channelID, userID, channelName, req.Content)
}
}()
// Fetch and store link embeds asynchronously.
go embed.FetchAndStore(h.db, msg.ID, req.Content)
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusCreated)
json.NewEncoder(w).Encode(msg)
}
func (h *Handler) checkSlowmode(ctx context.Context, channelID, userID string) (int, bool) {
var slowmode int
err := h.db.QueryRowContext(ctx, `SELECT slowmode_seconds FROM channels WHERE id = $1`, channelID).Scan(&slowmode)
if err != nil || slowmode <= 0 {
return 0, false
}
var elapsed int
err = h.db.QueryRowContext(ctx, `
SELECT COALESCE(EXTRACT(EPOCH FROM (NOW() - created_at))::int, 0)
FROM messages
WHERE channel_id = $1 AND author_id = $2
ORDER BY created_at DESC
LIMIT 1
`, channelID, userID).Scan(&elapsed)
if err != nil {
return 0, false
}
if elapsed < slowmode {
return slowmode - elapsed, true
}
return 0, false
}
type updateMessageRequest struct {
Content string `json:"content"`
}
// @Summary Update a message
// @Description Edit a message (author only)
// @Tags messages
// @Accept json
// @Produce json
// @Security SessionAuth
// @Param channelID path string true "Channel ID"
// @Param messageID path string true "Message ID"
// @Param body body updateMessageRequest true "Message update data"
// @Success 200 {object} messageResponse
// @Failure 400 {object} map[string]string
// @Failure 401 {object} map[string]string
// @Failure 404 {object} map[string]string
// @Router /channels/{channelID}/messages/{messageID} [patch]
func (h *Handler) Update(w http.ResponseWriter, r *http.Request) {
messageID := chi.URLParam(r, "messageID")
userID, ok := middleware.UserIDFromContext(r.Context())
if !ok {
http.Error(w, `{"error":"unauthorized"}`, http.StatusUnauthorized)
return
}
var req updateMessageRequest
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
http.Error(w, `{"error":"invalid request"}`, http.StatusBadRequest)
return
}
if req.Content == "" {
http.Error(w, `{"error":"content is required"}`, http.StatusBadRequest)
return
}
if len(req.Content) > 4000 {
http.Error(w, `{"error":"message too long (max 4000 chars)"}`, http.StatusBadRequest)
return
}
var msg messageResponse
var editedAt sql.NullString
var createdAt sql.NullString
var replyTo sql.NullString
err := h.db.QueryRowContext(r.Context(), `
UPDATE messages SET content = $1, edited_at = NOW()
WHERE id = $2 AND author_id = $3
RETURNING id, channel_id, author_id, content, reply_to::text, edited_at::text, pinned, created_at::text
`, req.Content, messageID, userID).Scan(
&msg.ID, &msg.ChannelID, &msg.AuthorID, &msg.Content, &replyTo, &editedAt, &msg.Pinned, &createdAt,
)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
http.Error(w, `{"error":"message not found or not authorized"}`, http.StatusNotFound)
return
}
http.Error(w, `{"error":"failed to update message"}`, http.StatusInternalServerError)
return
}
err = h.db.QueryRowContext(r.Context(), `
SELECT username, display_name FROM users WHERE id = $1
`, userID).Scan(&msg.AuthorName, &msg.DisplayName)
if err != nil {
http.Error(w, `{"error":"server error"}`, http.StatusInternalServerError)
return
}
if replyTo.Valid {
msg.ReplyTo = &replyTo.String
}
if editedAt.Valid {
msg.EditedAt = &editedAt.String
}
msg.CreatedAt = createdAt.String
// Re-fetch embeds after edit.
msg.Embeds = h.attachEmbeds(r.Context(), []messageResponse{msg})[0].Embeds
msg = h.attachReactions(r.Context(), []messageResponse{msg})[0]
// Look up serverID for scoped broadcast
serverID, _ := h.hub.ServerIDForChannel(r.Context(), msg.ChannelID)
if serverID != "" {
h.hub.BroadcastToServer(serverID, gateway.Event{
Type: gateway.EventMessageUpdate,
Data: msg,
})
}
go embed.FetchAndStore(h.db, msg.ID, req.Content)
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(msg)
}
// @Summary Delete a message
// @Description Delete a message (author only)
// @Tags messages
// @Security SessionAuth
// @Param channelID path string true "Channel ID"
// @Param messageID path string true "Message ID"
// @Success 204
// @Failure 401 {object} map[string]string
// @Failure 404 {object} map[string]string
// @Router /channels/{channelID}/messages/{messageID} [delete]
func (h *Handler) Delete(w http.ResponseWriter, r *http.Request) {
messageID := chi.URLParam(r, "messageID")
userID, ok := middleware.UserIDFromContext(r.Context())
if !ok {
http.Error(w, `{"error":"unauthorized"}`, http.StatusUnauthorized)
return
}
var channelID string
err := h.db.QueryRowContext(r.Context(), `
DELETE FROM messages WHERE id = $1 AND author_id = $2
RETURNING channel_id
`, messageID, userID).Scan(&channelID)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
http.Error(w, `{"error":"message not found or not authorized"}`, http.StatusNotFound)
return
}
http.Error(w, `{"error":"failed to delete message"}`, http.StatusInternalServerError)
return
}
// Look up serverID for scoped broadcast
serverID, _ := h.hub.ServerIDForChannel(r.Context(), channelID)
if serverID != "" {
h.hub.BroadcastToServer(serverID, gateway.Event{
Type: gateway.EventMessageDelete,
Data: map[string]string{
"id": messageID,
"channel_id": channelID,
},
})
}
w.WriteHeader(http.StatusNoContent)
}
// @Summary List messages
// @Description List messages in a channel with pagination
// @Tags messages
// @Produce json
// @Security SessionAuth
// @Param channelID path string true "Channel ID"
// @Param limit query int false "Max messages to return (1-100, default 50)"
// @Param before query string false "Message ID to fetch messages before"
// @Success 200 {array} messageResponse
// @Failure 401 {object} map[string]string
// @Failure 403 {object} map[string]string
// @Router /channels/{channelID}/messages [get]
func (h *Handler) List(w http.ResponseWriter, r *http.Request) {
channelID := chi.URLParam(r, "channelID")
userID, _, ok := h.requireChannelAccess(w, r, channelID, permissions.VIEW_CHANNEL)
if !ok {
return
}
limitStr := r.URL.Query().Get("limit")
limit := 50
if limitStr != "" {
if l, err := strconv.Atoi(limitStr); err == nil && l > 0 && l <= 100 {
limit = l
}
}
before := r.URL.Query().Get("before")
var rows *sql.Rows
var err error
if before != "" {
rows, err = h.db.QueryContext(r.Context(), `
SELECT m.id, m.channel_id, m.author_id, u.username, u.display_name, m.content, m.reply_to::text, m.edited_at::text, m.pinned, m.created_at::text
FROM messages m
JOIN users u ON m.author_id = u.id
WHERE m.channel_id = $1 AND m.created_at < (SELECT created_at FROM messages WHERE id = $2)
ORDER BY m.created_at DESC
LIMIT $3
`, channelID, before, limit)
} else {
rows, err = h.db.QueryContext(r.Context(), `
SELECT m.id, m.channel_id, m.author_id, u.username, u.display_name, m.content, m.reply_to::text, m.edited_at::text, m.pinned, m.created_at::text
FROM messages m
JOIN users u ON m.author_id = u.id
WHERE m.channel_id = $1
ORDER BY m.created_at DESC
LIMIT $2
`, channelID, limit)
}
if err != nil {
http.Error(w, `{"error":"failed to list messages"}`, http.StatusInternalServerError)
return
}
defer rows.Close()
messages := make([]messageResponse, 0)
for rows.Next() {
var msg messageResponse
var editedAt sql.NullString
var createdAt sql.NullString
var replyTo sql.NullString
err := rows.Scan(&msg.ID, &msg.ChannelID, &msg.AuthorID, &msg.AuthorName, &msg.DisplayName, &msg.Content, &replyTo, &editedAt, &msg.Pinned, &createdAt)
if err != nil {
continue
}
if replyTo.Valid {
msg.ReplyTo = &replyTo.String
}
if editedAt.Valid {
msg.EditedAt = &editedAt.String
}
msg.CreatedAt = createdAt.String
messages = append(messages, msg)
}
messages = h.attachEmbeds(r.Context(), messages)
messages = h.attachReactions(r.Context(), messages)
messages = h.attachPolls(r.Context(), messages)
// Reverse: query returns DESC (newest first), client expects ASC (oldest first).
for i, j := 0, len(messages)-1; i < j; i, j = i+1, j-1 {
messages[i], messages[j] = messages[j], messages[i]
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(messages)
_ = userID
}
// attachEmbeds loads embeds for the given messages and attaches them.
func (h *Handler) attachEmbeds(ctx context.Context, messages []messageResponse) []messageResponse {
if len(messages) == 0 {
return messages
}
ids := make([]string, len(messages))
for i, m := range messages {
ids[i] = m.ID
}
embedMap, err := embed.LoadForMessages(ctx, h.db, ids)
if err != nil {
return messages
}
for i := range messages {
if embs, ok := embedMap[messages[i].ID]; ok {
out := make([]embedResponse, len(embs))
for j, e := range embs {
out[j] = embedResponse{
ID: e.ID,
URL: e.URL,
Title: e.Title,
Description: e.Description,
ImageURL: e.ImageURL,
SiteName: e.SiteName,
}
}
messages[i].Embeds = out
}
}
return messages
}
func (h *Handler) attachReactions(ctx context.Context, messages []messageResponse) []messageResponse {
if len(messages) == 0 {
return messages
}
msgIDs := make([]string, len(messages))
msgMap := make(map[string]int)
for i, msg := range messages {
msgIDs[i] = msg.ID
msgMap[msg.ID] = i
messages[i].Reactions = make([]emojiGroup, 0)
}
placeholders := make([]string, len(msgIDs))
args := make([]interface{}, len(msgIDs))
for i, id := range msgIDs {
placeholders[i] = fmt.Sprintf("$%d", i+1)
args[i] = id
}
query := fmt.Sprintf(`
SELECT id, message_id, user_id, emoji, created_at::text
FROM reactions
WHERE message_id IN (%s)
ORDER BY created_at ASC
`, strings.Join(placeholders, ", "))
rows, err := h.db.QueryContext(ctx, query, args...)
if err != nil {
return messages
}
defer rows.Close()
reactionsMap := make(map[string]map[string]*emojiGroup)
emojiOrderMap := make(map[string][]string)
for rows.Next() {
var reaction reactionResponse
var createdAt sql.NullString
if err := rows.Scan(&reaction.ID, &reaction.MessageID, &reaction.UserID, &reaction.Emoji, &createdAt); err != nil {
continue
}
reaction.CreatedAt = createdAt.String
msgID := reaction.MessageID
if _, ok := reactionsMap[msgID]; !ok {
reactionsMap[msgID] = make(map[string]*emojiGroup)
emojiOrderMap[msgID] = make([]string, 0)
}
group, ok := reactionsMap[msgID][reaction.Emoji]
if !ok {
group = &emojiGroup{
Emoji: reaction.Emoji,
Users: []string{},
Details: []reactionResponse{},
}
reactionsMap[msgID][reaction.Emoji] = group
emojiOrderMap[msgID] = append(emojiOrderMap[msgID], reaction.Emoji)
}
group.Count++
group.Users = append(group.Users, reaction.UserID)
group.Details = append(group.Details, reaction)
}
for msgID, emojisMap := range reactionsMap {
idx, ok := msgMap[msgID]
if !ok {
continue
}
order := emojiOrderMap[msgID]
for _, emoji := range order {
messages[idx].Reactions = append(messages[idx].Reactions, *emojisMap[emoji])
}
}
return messages
}
// attachPolls loads poll data for messages that have polls.
func (h *Handler) attachPolls(ctx context.Context, messages []messageResponse) []messageResponse {
if len(messages) == 0 {
return messages
}
msgIDs := make([]string, len(messages))
for i, m := range messages {
msgIDs[i] = m.ID
}
placeholders := make([]string, len(msgIDs))
args := make([]interface{}, len(msgIDs))
for i, id := range msgIDs {
placeholders[i] = fmt.Sprintf("$%d", i+1)
args[i] = id
}
query := fmt.Sprintf(`
SELECT p.id, p.message_id, p.question, p.created_at::text
FROM polls p
WHERE p.message_id IN (%s)
`, strings.Join(placeholders, ", "))
rows, err := h.db.QueryContext(ctx, query, args...)
if err != nil {
return messages
}
defer rows.Close()
msgMap := make(map[string]int)
for i, m := range messages {
msgMap[m.ID] = i
}
type pollRow struct {
ID string
MessageID string
Question string
CreatedAt string
}
pollRows := make([]pollRow, 0)
for rows.Next() {
var p pollRow
if err := rows.Scan(&p.ID, &p.MessageID, &p.Question, &p.CreatedAt); err != nil {
continue
}
pollRows = append(pollRows, p)
}
for _, pr := range pollRows {
idx, ok := msgMap[pr.MessageID]
if !ok {
continue
}
poll := &pollResponse{
ID: pr.ID,
MessageID: pr.MessageID,
Question: pr.Question,
CreatedAt: pr.CreatedAt,
Options: make([]pollOptionResponse, 0),
}
optRows, err := h.db.QueryContext(ctx, `
SELECT po.id, po.text, po.position, COUNT(pv.id) as votes
FROM poll_options po
LEFT JOIN poll_votes pv ON pv.option_id = po.id
WHERE po.poll_id = $1
GROUP BY po.id, po.text, po.position
ORDER BY po.position
`, pr.ID)
if err == nil {
for optRows.Next() {
var opt pollOptionResponse
if err := optRows.Scan(&opt.ID, &opt.Text, &opt.Position, &opt.Votes); err != nil {
continue
}
opt.Voters = []string{}
poll.Options = append(poll.Options, opt)
}
optRows.Close()
for i, opt := range poll.Options {
voterRows, err := h.db.QueryContext(ctx, `SELECT user_id FROM poll_votes WHERE option_id = $1`, opt.ID)
if err != nil {
continue
}
for voterRows.Next() {
var voterID string
if voterRows.Scan(&voterID) == nil {
poll.Options[i].Voters = append(poll.Options[i].Voters, voterID)
}
}
voterRows.Close()
}
}
messages[idx].Poll = poll
}
return messages
}
// Search searches messages in a channel using PostgreSQL full-text search.
func (h *Handler) Search(w http.ResponseWriter, r *http.Request) {
channelID := chi.URLParam(r, "channelID")
_, _, ok := h.requireChannelAccess(w, r, channelID, permissions.VIEW_CHANNEL)
if !ok {
return
}
q := strings.TrimSpace(r.URL.Query().Get("q"))
if q == "" {
http.Error(w, `{"error":"missing q parameter"}`, http.StatusBadRequest)
return
}
limitStr := r.URL.Query().Get("limit")
limit := 25
if limitStr != "" {
if l, err := strconv.Atoi(limitStr); err == nil && l > 0 && l <= 100 {
limit = l
}
}
rows, err := h.db.QueryContext(r.Context(), `
SELECT m.id, m.channel_id, m.author_id, u.username, u.display_name, m.content, m.reply_to::text, m.edited_at::text, m.pinned, m.created_at::text,
ts_rank(m.search_vector, plainto_tsquery('english', $2)) AS rank
FROM messages m
JOIN users u ON m.author_id = u.id
WHERE m.channel_id = $1 AND m.search_vector @@ plainto_tsquery('english', $2)
ORDER BY rank DESC, m.created_at DESC
LIMIT $3
`, channelID, q, limit)
if err != nil {
http.Error(w, `{"error":"failed to search messages"}`, http.StatusInternalServerError)
return
}
defer rows.Close()
messages := make([]messageResponse, 0)
for rows.Next() {
var msg messageResponse
var editedAt sql.NullString
var createdAt sql.NullString
var replyTo sql.NullString
var rank float64
err := rows.Scan(&msg.ID, &msg.ChannelID, &msg.AuthorID, &msg.AuthorName, &msg.DisplayName, &msg.Content, &replyTo, &editedAt, &msg.Pinned, &createdAt, &rank)
if err != nil {
continue
}
if replyTo.Valid {
msg.ReplyTo = &replyTo.String
}
if editedAt.Valid {
msg.EditedAt = &editedAt.String
}
msg.CreatedAt = createdAt.String
messages = append(messages, msg)
}
messages = h.attachEmbeds(r.Context(), messages)
messages = h.attachReactions(r.Context(), messages)
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(messages)
}
// requireChannelAccess checks if user is authenticated and is a member of the channel's server.
// Returns (userID, serverID, ok). If required is non-zero, also checks the permission against
// channel-level overrides.
func (h *Handler) requireChannelAccess(w http.ResponseWriter, r *http.Request, channelID string, required int64) (string, string, bool) {
userID, ok := middleware.UserIDFromContext(r.Context())
if !ok {
http.Error(w, `{"error":"unauthorized"}`, http.StatusUnauthorized)
return "", "", false
}
var serverID string
err := h.db.QueryRowContext(r.Context(), `SELECT server_id FROM channels WHERE id = $1`, channelID).Scan(&serverID)
if err != nil {
http.Error(w, `{"error":"channel not found"}`, http.StatusNotFound)
return "", "", false
}
isMember, err := h.isMember(r.Context(), userID, serverID)
if err != nil || !isMember {
http.Error(w, `{"error":"not a member"}`, http.StatusForbidden)
return "", "", false
}
// Check channel-specific permission if a bitmap was provided.
if required != 0 {
allowed, checkErr := h.checker.CheckChannelPermission(r.Context(), serverID, userID, channelID, required)
if checkErr != nil {
h.logger.Error("permission check failed", "error", checkErr)
http.Error(w, `{"error":"server error"}`, http.StatusInternalServerError)
return "", "", false
}
if !allowed {
http.Error(w, `{"error":"missing permissions"}`, http.StatusForbidden)
return "", "", false
}
}
return userID, serverID, true
}
func (h *Handler) Pin(w http.ResponseWriter, r *http.Request) {
channelID := chi.URLParam(r, "channelID")
messageID := chi.URLParam(r, "messageID")
_, serverID, ok := h.requireChannelAccess(w, r, channelID, permissions.SEND_MESSAGES)
if !ok {
return
}
// Verify the message exists and belongs to this channel
var msgChannelID string
err := h.db.QueryRowContext(r.Context(), "SELECT channel_id FROM messages WHERE id = $1", messageID).Scan(&msgChannelID)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
http.Error(w, `{"error":"message not found"}`, http.StatusNotFound)
return
}
http.Error(w, `{"error":"server error"}`, http.StatusInternalServerError)
return
}
if msgChannelID != channelID {
http.Error(w, `{"error":"message does not belong to this channel"}`, http.StatusBadRequest)
return
}
// Check if already pinned
var isPinned bool
err = h.db.QueryRowContext(r.Context(), "SELECT pinned FROM messages WHERE id = $1", messageID).Scan(&isPinned)
if err != nil {
http.Error(w, `{"error":"server error"}`, http.StatusInternalServerError)
return
}
if isPinned {
http.Error(w, `{"error":"message is already pinned"}`, http.StatusBadRequest)
return
}
// Count pinned messages in this channel
var count int
err = h.db.QueryRowContext(r.Context(), "SELECT COUNT(*) FROM messages WHERE channel_id = $1 AND pinned = TRUE", channelID).Scan(&count)
if err != nil {
http.Error(w, `{"error":"server error"}`, http.StatusInternalServerError)
return
}
if count >= 5 {
http.Error(w, `{"error":"limit reached (max 5 pinned messages per channel)"}`, http.StatusBadRequest)
return
}
// Update message
var msg messageResponse
var editedAt sql.NullString
var createdAt sql.NullString
var replyTo sql.NullString
err = h.db.QueryRowContext(r.Context(), `
UPDATE messages SET pinned = TRUE
WHERE id = $1
RETURNING id, channel_id, author_id, content, reply_to::text, edited_at::text, pinned, created_at::text
`, messageID).Scan(
&msg.ID, &msg.ChannelID, &msg.AuthorID, &msg.Content, &replyTo, &editedAt, &msg.Pinned, &createdAt,
)
if err != nil {
http.Error(w, `{"error":"failed to pin message"}`, http.StatusInternalServerError)
return
}
// Fetch author details
err = h.db.QueryRowContext(r.Context(), `
SELECT username, display_name FROM users WHERE id = $1
`, msg.AuthorID).Scan(&msg.AuthorName, &msg.DisplayName)
if err != nil {
http.Error(w, `{"error":"server error"}`, http.StatusInternalServerError)
return
}
if replyTo.Valid {
msg.ReplyTo = &replyTo.String
}
if editedAt.Valid {
msg.EditedAt = &editedAt.String
}
msg.CreatedAt = createdAt.String
// Attach embeds
msg.Embeds = h.attachEmbeds(r.Context(), []messageResponse{msg})[0].Embeds
msg = h.attachReactions(r.Context(), []messageResponse{msg})[0]
// Broadcast MESSAGE_UPDATE
h.hub.BroadcastToServer(serverID, gateway.Event{
Type: gateway.EventMessageUpdate,
Data: msg,
})
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(msg)
}
func (h *Handler) Unpin(w http.ResponseWriter, r *http.Request) {
channelID := chi.URLParam(r, "channelID")
messageID := chi.URLParam(r, "messageID")
_, serverID, ok := h.requireChannelAccess(w, r, channelID, permissions.SEND_MESSAGES)
if !ok {
return
}
// Verify the message exists and belongs to this channel
var msgChannelID string
err := h.db.QueryRowContext(r.Context(), "SELECT channel_id FROM messages WHERE id = $1", messageID).Scan(&msgChannelID)
if err != nil {
if errors.Is(err, sql.ErrNoRows) {
http.Error(w, `{"error":"message not found"}`, http.StatusNotFound)
return
}
http.Error(w, `{"error":"server error"}`, http.StatusInternalServerError)
return
}
if msgChannelID != channelID {
http.Error(w, `{"error":"message does not belong to this channel"}`, http.StatusBadRequest)
return
}
// Update message
var msg messageResponse
var editedAt sql.NullString
var createdAt sql.NullString
var replyTo sql.NullString
err = h.db.QueryRowContext(r.Context(), `
UPDATE messages SET pinned = FALSE
WHERE id = $1
RETURNING id, channel_id, author_id, content, reply_to::text, edited_at::text, pinned, created_at::text
`, messageID).Scan(
&msg.ID, &msg.ChannelID, &msg.AuthorID, &msg.Content, &replyTo, &editedAt, &msg.Pinned, &createdAt,
)
if err != nil {
http.Error(w, `{"error":"failed to unpin message"}`, http.StatusInternalServerError)
return
}
// Fetch author details
err = h.db.QueryRowContext(r.Context(), `
SELECT username, display_name FROM users WHERE id = $1
`, msg.AuthorID).Scan(&msg.AuthorName, &msg.DisplayName)
if err != nil {
http.Error(w, `{"error":"server error"}`, http.StatusInternalServerError)
return
}
if replyTo.Valid {
msg.ReplyTo = &replyTo.String
}
if editedAt.Valid {
msg.EditedAt = &editedAt.String
}
msg.CreatedAt = createdAt.String
// Attach embeds
msg.Embeds = h.attachEmbeds(r.Context(), []messageResponse{msg})[0].Embeds
msg = h.attachReactions(r.Context(), []messageResponse{msg})[0]
// Broadcast MESSAGE_UPDATE
h.hub.BroadcastToServer(serverID, gateway.Event{
Type: gateway.EventMessageUpdate,
Data: msg,
})
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(msg)
}
func (h *Handler) ListPinned(w http.ResponseWriter, r *http.Request) {
channelID := chi.URLParam(r, "channelID")
_, _, ok := h.requireChannelAccess(w, r, channelID, permissions.VIEW_CHANNEL)
if !ok {
return
}
rows, err := h.db.QueryContext(r.Context(), `
SELECT m.id, m.channel_id, m.author_id, u.username, u.display_name, m.content, m.reply_to::text, m.edited_at::text, m.pinned, m.created_at::text
FROM messages m
JOIN users u ON m.author_id = u.id
WHERE m.channel_id = $1 AND m.pinned = TRUE
ORDER BY m.created_at DESC
`, channelID)
if err != nil {
http.Error(w, `{"error":"failed to list pinned messages"}`, http.StatusInternalServerError)
return
}
defer rows.Close()
messages := make([]messageResponse, 0)
for rows.Next() {
var msg messageResponse
var editedAt sql.NullString
var createdAt sql.NullString
var replyTo sql.NullString
err := rows.Scan(&msg.ID, &msg.ChannelID, &msg.AuthorID, &msg.AuthorName, &msg.DisplayName, &msg.Content, &replyTo, &editedAt, &msg.Pinned, &createdAt)
if err != nil {
continue
}
if replyTo.Valid {
msg.ReplyTo = &replyTo.String
}
if editedAt.Valid {
msg.EditedAt = &editedAt.String
}
msg.CreatedAt = createdAt.String
messages = append(messages, msg)
}
messages = h.attachEmbeds(r.Context(), messages)
messages = h.attachReactions(r.Context(), messages)
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(messages)
}