initialScan()

remove event from expiration manager if it is deleted.
simplify WriteMessage, remove the defer since it's not needed.
2026-04-07 14:06:51 +02:00 · 2025-04-04 17:55:16 -03:00 · 2025-04-03 23:11:47 -03:00 · 2025-04-03 23:10:39 -03:00 · 2025-04-03 23:10:11 -03:00 · 2025-04-03 23:06:57 -03:00
41 changed files with 1211 additions and 365 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 *.env
-rss-bridge
+.idea/
+knowledge.md
--- a/README.md
+++ b/README.md
@@ -127,6 +127,7 @@ Fear no more. Using the https://github.com/fiatjaf/eventstore module you get a b
 	relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
 	relay.CountEvents = append(relay.CountEvents, db.CountEvents)
 	relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
+	relay.ReplaceEvent = append(relay.ReplaceEvent, db.ReplaceEvent)
 ```

 ### But I don't want to write a bunch of custom policies!
--- a/adding.go
+++ b/adding.go
@@ -35,68 +35,70 @@ func (rl *Relay) AddEvent(ctx context.Context, evt *nostr.Event) (skipBroadcast
 		}
 	} else {
 		// will store
-
-		// but first check if we already have it
-		filter := nostr.Filter{IDs: []string{evt.ID}}
-		for _, query := range rl.QueryEvents {
-			ch, err := query(ctx, filter)
-			if err != nil {
-				continue
-			}
-			for range ch {
-				// if we run this it means we already have this event, so we just return a success and exit
-				return true, nil
-			}
-		}
-
-		// if it's replaceable we first delete old versions
-		if evt.Kind == 0 || evt.Kind == 3 || (10000 <= evt.Kind && evt.Kind < 20000) {
-			// replaceable event, delete before storing
-			filter := nostr.Filter{Authors: []string{evt.PubKey}, Kinds: []int{evt.Kind}}
-			for _, query := range rl.QueryEvents {
-				ch, err := query(ctx, filter)
-				if err != nil {
-					continue
-				}
-				for previous := range ch {
-					if isOlder(previous, evt) {
-						for _, del := range rl.DeleteEvent {
-							del(ctx, previous)
-						}
+		// regular kinds are just saved directly
+		if nostr.IsRegularKind(evt.Kind) {
+			for _, store := range rl.StoreEvent {
+				if err := store(ctx, evt); err != nil {
+					switch err {
+					case eventstore.ErrDupEvent:
+						return true, nil
+					default:
+						return false, fmt.Errorf("%s", nostr.NormalizeOKMessage(err.Error(), "error"))
 					}
 				}
 			}
-		} else if 30000 <= evt.Kind && evt.Kind < 40000 {
-			// parameterized replaceable event, delete before storing
-			d := evt.Tags.GetFirst([]string{"d", ""})
-			if d == nil {
-				return false, fmt.Errorf("invalid: missing 'd' tag on parameterized replaceable event")
-			}
-
-			filter := nostr.Filter{Authors: []string{evt.PubKey}, Kinds: []int{evt.Kind}, Tags: nostr.TagMap{"d": []string{(*d)[1]}}}
-			for _, query := range rl.QueryEvents {
-				ch, err := query(ctx, filter)
-				if err != nil {
-					continue
-				}
-				for previous := range ch {
-					if isOlder(previous, evt) {
-						for _, del := range rl.DeleteEvent {
-							del(ctx, previous)
+		} else {
+			// otherwise it's a replaceable -- so we'll use the replacer functions if we have any
+			if len(rl.ReplaceEvent) > 0 {
+				for _, repl := range rl.ReplaceEvent {
+					if err := repl(ctx, evt); err != nil {
+						switch err {
+						case eventstore.ErrDupEvent:
+							return true, nil
+						default:
+							return false, fmt.Errorf("%s", nostr.NormalizeOKMessage(err.Error(), "error"))
 						}
 					}
 				}
-			}
-		}
+			} else {
+				// otherwise do it the manual way
+				filter := nostr.Filter{Limit: 1, Kinds: []int{evt.Kind}, Authors: []string{evt.PubKey}}
+				if nostr.IsAddressableKind(evt.Kind) {
+					// when addressable, add the "d" tag to the filter
+					filter.Tags = nostr.TagMap{"d": []string{evt.Tags.GetD()}}
+				}

-		// store
-		for _, store := range rl.StoreEvent {
-			if saveErr := store(ctx, evt); saveErr != nil {
-				switch saveErr {
-				case eventstore.ErrDupEvent:
-					return true, nil
-				default:
-					return false, fmt.Errorf(nostr.NormalizeOKMessage(saveErr.Error(), "error"))
+				// now we fetch old events and delete them
+				shouldStore := true
+				for _, query := range rl.QueryEvents {
+					ch, err := query(ctx, filter)
+					if err != nil {
+						continue
+					}
+					for previous := range ch {
+						if isOlder(previous, evt) {
+							for _, del := range rl.DeleteEvent {
+								del(ctx, previous)
+							}
+						} else {
+							// we found a more recent event, so we won't delete it and also will not store this new one
+							shouldStore = false
+						}
+					}
+				}
+
+				// store
+				if shouldStore {
+					for _, store := range rl.StoreEvent {
+						if saveErr := store(ctx, evt); saveErr != nil {
+							switch saveErr {
+							case eventstore.ErrDupEvent:
+								return true, nil
+							default:
+								return false, fmt.Errorf("%s", nostr.NormalizeOKMessage(saveErr.Error(), "error"))
+							}
+						}
+					}
 				}
 			}
 		}
@@ -104,6 +106,9 @@ func (rl *Relay) AddEvent(ctx context.Context, evt *nostr.Event) (skipBroadcast
 		for _, ons := range rl.OnEventSaved {
 			ons(ctx, evt)
 		}
+
+		// track event expiration if applicable
+		rl.expirationManager.trackEvent(evt)
 	}

 	return false, nil
--- a/blossom/authorization.go
+++ b/blossom/authorization.go
@@ -1,15 +1,13 @@
 package blossom

 import (
-	"bytes"
 	"encoding/base64"
-	"encoding/json"
 	"fmt"
-	"io"
 	"net/http"
 	"strconv"
 	"strings"

+	"github.com/mailru/easyjson"
 	"github.com/nbd-wtf/go-nostr"
 )

@@ -19,25 +17,26 @@ func readAuthorization(r *http.Request) (*nostr.Event, error) {
 		return nil, nil
 	}

-	var reader io.Reader
-	reader = bytes.NewReader([]byte(token)[6:])
-	reader = base64.NewDecoder(base64.StdEncoding, reader)
+	eventj, err := base64.StdEncoding.DecodeString(token[6:])
+	if err != nil {
+		return nil, fmt.Errorf("invalid base64 token")
+	}
 	var evt nostr.Event
-	err := json.NewDecoder(reader).Decode(&evt)
-
-	if err != nil || evt.Kind != 24242 || len(evt.ID) != 64 || !evt.CheckID() {
+	if err := easyjson.Unmarshal(eventj, &evt); err != nil {
+		return nil, fmt.Errorf("broken event")
+	}
+	if evt.Kind != 24242 || !evt.CheckID() {
 		return nil, fmt.Errorf("invalid event")
 	}
-
 	if ok, _ := evt.CheckSignature(); !ok {
 		return nil, fmt.Errorf("invalid signature")
 	}

-	expirationTag := evt.Tags.GetFirst([]string{"expiration", ""})
+	expirationTag := evt.Tags.Find("expiration")
 	if expirationTag == nil {
 		return nil, fmt.Errorf("missing \"expiration\" tag")
 	}
-	expiration, _ := strconv.ParseInt((*expirationTag)[1], 10, 64)
+	expiration, _ := strconv.ParseInt(expirationTag[1], 10, 64)
 	if nostr.Timestamp(expiration) < nostr.Now() {
 		return nil, fmt.Errorf("event expired")
 	}
--- a/blossom/handlers.go
+++ b/blossom/handlers.go
@@ -22,7 +22,7 @@ func (bs BlossomServer) handleUploadCheck(w http.ResponseWriter, r *http.Request
 		return
 	}
 	if auth == nil {
-		blossomError(w, "missing \"Authorization\" header", 400)
+		blossomError(w, "missing \"Authorization\" header", 401)
 		return
 	}
 	if auth.Tags.GetFirst([]string{"t", "upload"}) == nil {
@@ -52,11 +52,11 @@ func (bs BlossomServer) handleUploadCheck(w http.ResponseWriter, r *http.Request
 func (bs BlossomServer) handleUpload(w http.ResponseWriter, r *http.Request) {
 	auth, err := readAuthorization(r)
 	if err != nil {
-		blossomError(w, "invalid \"Authorization\": "+err.Error(), 400)
+		blossomError(w, "invalid \"Authorization\": "+err.Error(), 404)
 		return
 	}
 	if auth == nil {
-		blossomError(w, "missing \"Authorization\" header", 400)
+		blossomError(w, "missing \"Authorization\" header", 401)
 		return
 	}
 	if auth.Tags.GetFirst([]string{"t", "upload"}) == nil {
@@ -73,7 +73,7 @@ func (bs BlossomServer) handleUpload(w http.ResponseWriter, r *http.Request) {

 	// read first bytes of upload so we can find out the filetype
 	b := make([]byte, min(50, size), size)
-	if _, err = r.Body.Read(b); err != nil {
+	if n, err := r.Body.Read(b); err != nil && n != size {
 		blossomError(w, "failed to read initial bytes of upload body: "+err.Error(), 400)
 		return
 	}
@@ -198,13 +198,14 @@ func (bs BlossomServer) handleGetBlob(w http.ResponseWriter, r *http.Request) {
 			if err == nil && descriptor != nil {
 				t = descriptor.Uploaded.Time()
 			}
+			w.Header().Set("ETag", hhash)
+			w.Header().Set("Cache-Control", "public, max-age=604800, immutable")
 			http.ServeContent(w, r, hhash+ext, t, reader)
 			return
 		}
 	}

 	blossomError(w, "file not found", 404)
-	return
 }

 func (bs BlossomServer) handleHasBlob(w http.ResponseWriter, r *http.Request) {
@@ -226,8 +227,6 @@ func (bs BlossomServer) handleHasBlob(w http.ResponseWriter, r *http.Request) {
 		blossomError(w, "file not found", 404)
 		return
 	}
-
-	return
 }

 func (bs BlossomServer) handleList(w http.ResponseWriter, r *http.Request) {
@@ -329,6 +328,38 @@ func (bs BlossomServer) handleDelete(w http.ResponseWriter, r *http.Request) {
 	}
 }

+func (bs BlossomServer) handleReport(w http.ResponseWriter, r *http.Request) {
+	var body []byte
+	_, err := r.Body.Read(body)
+	if err != nil {
+		blossomError(w, "can't read request body", 400)
+		return
+	}
+
+	var evt *nostr.Event
+	if err := json.Unmarshal(body, evt); err != nil {
+		blossomError(w, "can't parse event", 400)
+		return
+	}
+
+	if isValid, _ := evt.CheckSignature(); !isValid {
+		blossomError(w, "invalid report event is provided", 400)
+		return
+	}
+
+	if evt.Kind != nostr.KindReporting {
+		blossomError(w, "invalid report event is provided", 400)
+		return
+	}
+
+	for _, rr := range bs.ReceiveReport {
+		if err := rr(r.Context(), evt); err != nil {
+			blossomError(w, "failed to receive report: "+err.Error(), 500)
+			return
+		}
+	}
+}
+
 func (bs BlossomServer) handleMirror(w http.ResponseWriter, r *http.Request) {
 }

--- a/blossom/server.go
+++ b/blossom/server.go
@@ -14,9 +14,10 @@ type BlossomServer struct {
 	ServiceURL string
 	Store      BlobIndex

-	StoreBlob  []func(ctx context.Context, sha256 string, body []byte) error
-	LoadBlob   []func(ctx context.Context, sha256 string) (io.ReadSeeker, error)
-	DeleteBlob []func(ctx context.Context, sha256 string) error
+	StoreBlob     []func(ctx context.Context, sha256 string, body []byte) error
+	LoadBlob      []func(ctx context.Context, sha256 string) (io.ReadSeeker, error)
+	DeleteBlob    []func(ctx context.Context, sha256 string) error
+	ReceiveReport []func(ctx context.Context, reportEvt *nostr.Event) error

 	RejectUpload []func(ctx context.Context, auth *nostr.Event, size int, ext string) (bool, string, int)
 	RejectGet    []func(ctx context.Context, auth *nostr.Event, sha256 string) (bool, string, int)
@@ -48,7 +49,7 @@ func New(rl *khatru.Relay, serviceURL string) *BlossomServer {
 			return
 		}

-		if len(strings.SplitN(r.URL.Path, ".", 2)[0]) == 65 {
+		if (len(r.URL.Path) == 65 || strings.Index(r.URL.Path, ".") == 65) && strings.Index(r.URL.Path[1:], "/") == -1 {
 			if r.Method == "HEAD" {
 				bs.handleHasBlob(w, r)
 				return
@@ -61,6 +62,13 @@ func New(rl *khatru.Relay, serviceURL string) *BlossomServer {
 			}
 		}

+		if r.URL.Path == "/report" {
+			if r.Method == "PUT" {
+				bs.handleReport(w, r)
+				return
+			}
+		}
+
 		base.ServeHTTP(w, r)
 	})

--- a/deleting.go
+++ b/deleting.go
@@ -39,6 +39,7 @@ func (rl *Relay) handleDeleteRequest(ctx context.Context, evt *nostr.Event) erro
 				continue
 			}

+			ctx := context.WithValue(ctx, internalCallKey, struct{}{})
 			for _, query := range rl.QueryEvents {
 				ch, err := query(ctx, f)
 				if err != nil {
@@ -66,6 +67,9 @@ func (rl *Relay) handleDeleteRequest(ctx context.Context, evt *nostr.Event) erro
 							return err
 						}
 					}
+
+					// if it was tracked to be expired that is not needed anymore
+					rl.expirationManager.removeEvent(target.ID)
 				} else {
 					// fail and stop here
 					return fmt.Errorf("blocked: %s", msg)
--- a/docs/.vitepress/config.js
+++ b/docs/.vitepress/config.js
@@ -7,11 +7,32 @@ export default {
    nav: [
      {text: 'Home', link: '/'},
      {text: 'Why', link: '/why'},
-      {text: 'Use Cases', link: '/use-cases'},
-      {text: 'Get Started', link: '/getting-started'},
-      {text: 'Cookbook', link: '/cookbook'},
+      {text: 'Docs', link: '/getting-started'},
      {text: 'Source', link: 'https://github.com/fiatjaf/khatru'}
    ],
+    sidebar: [
+      {
+        text: 'Core Concepts',
+        items: [
+          { text: 'Event Storage', link: '/core/eventstore' },
+          { text: 'Authentication', link: '/core/auth' },
+          { text: 'HTTP Integration', link: '/core/embed' },
+          { text: 'Request Routing', link: '/core/routing' },
+          { text: 'Management API', link: '/core/management' },
+          { text: 'Media Storage (Blossom)', link: '/core/blossom' },
+        ]
+      },
+      {
+        text: 'Cookbook',
+        items: [
+          { text: 'Search', link: '/cookbook/search' },
+          { text: 'Dynamic Relays', link: '/cookbook/dynamic' },
+          { text: 'Generating Events Live', link: '/cookbook/custom-live-events' },
+          { text: 'Custom Stores', link: '/cookbook/custom-stores' },
+          { text: 'Using something like Google Drive', link: '/cookbook/google-drive' },
+        ]
+      }
+    ],
    editLink: {
      pattern: 'https://github.com/fiatjaf/khatru/edit/master/docs/:path'
    }
--- a/docs/cookbook/index.md
+++ b/docs/cookbook/index.md
@@ -1,11 +0,0 @@
-# Cookbook
-
- [Dealing with `AUTH` messages and authenticated users](auth)
- [Configuring the Relay Management API](management)
- [Using the eventstore library](eventstore)
- [Custom store: creating Nostr events on the fly from a non-Nostr source](custom-stores)
- [Custom store: reading from Google Drive](google-drive)
- [Live event generation](custom-live-events)
- [Embedding `khatru` inside other Go HTTP servers](embed)
- [Generating relays dynamically and serving them from the same path](dynamic)
- [Routing between multiple relays](routing)
--- a/docs/cookbook/search.md
+++ b/docs/cookbook/search.md
@@ -6,7 +6,7 @@ outline: deep

 The [`nostr.Filter` type](https://pkg.go.dev/github.com/nbd-wtf/go-nostr#Filter) has a `Search` field, so you basically just has to handle that if it's present.

-It can be tricky to implement fulltext search properly though, so some [eventstores](eventstore) implement it natively, such as [Bluge](https://pkg.go.dev/github.com/fiatjaf/eventstore/bluge), [OpenSearch](https://pkg.go.dev/github.com/fiatjaf/eventstore/opensearch) and [ElasticSearch](https://pkg.go.dev/github.com/fiatjaf/eventstore/elasticsearch) (although for the last two you'll need an instance of these database servers running, while with Bluge it's embedded).
+It can be tricky to implement fulltext search properly though, so some [eventstores](../core/eventstore) implement it natively, such as [Bluge](https://pkg.go.dev/github.com/fiatjaf/eventstore/bluge), [OpenSearch](https://pkg.go.dev/github.com/fiatjaf/eventstore/opensearch) and [ElasticSearch](https://pkg.go.dev/github.com/fiatjaf/eventstore/elasticsearch) (although for the last two you'll need an instance of these database servers running, while with Bluge it's embedded).

 If you have any of these you can just use them just like any other eventstore:

--- a/docs/cookbook/auth.md
+++ b/docs/cookbook/auth.md
--- a/docs/core/blossom.md
+++ b/docs/core/blossom.md
@@ -0,0 +1,93 @@
+---
+outline: deep
+---
+
+# Blossom: Media Storage
+
+Khatru comes with a built-in Blossom HTTP handler that allows you to store and serve media blobs using storage backend you want (filesystem, S3 etc).
+
+## Basic Setup
+
+Here's a minimal example of what you should do to enable it:
+
+```go
+func main() {
+    relay := khatru.NewRelay()
+
+    // create blossom server with the relay and service URL
+    bl := blossom.New(relay, "http://localhost:3334")
+
+    // create a database for keeping track of blob metadata
+    // (do not use the same database used for the relay events)
+	bl.Store = blossom.EventStoreBlobIndexWrapper{Store: blobdb, ServiceURL: bl.ServiceURL}
+
+    // implement the required storage functions
+    bl.StoreBlob = append(bl.StoreBlob, func(ctx context.Context, sha256 string, body []byte) error {
+        // store the blob data somewhere
+        return nil
+    })
+    bl.LoadBlob = append(bl.LoadBlob, func(ctx context.Context, sha256 string) (io.ReadSeeker, error) {
+        // load and return the blob data
+        return nil, nil
+    })
+    bl.DeleteBlob = append(bl.DeleteBlob, func(ctx context.Context, sha256 string) error {
+        // delete the blob data
+        return nil
+    })
+
+    http.ListenAndServe(":3334", relay)
+}
+```
+
+## Storage Backend Integration
+
+You can integrate any storage backend by implementing the three core functions:
+
+- `StoreBlob`: Save the blob data
+- `LoadBlob`: Retrieve the blob data
+- `DeleteBlob`: Remove the blob data
+
+## Upload Restrictions
+
+You can implement upload restrictions using the `RejectUpload` hook. Here's an example that limits file size and restricts uploads to whitelisted users:
+
+```go
+const maxFileSize = 10 * 1024 * 1024 // 10MB
+
+var allowedUsers = map[string]bool{
+    "pubkey1": true,
+    "pubkey2": true,
+}
+
+bl.RejectUpload = append(bl.RejectUpload, func(ctx context.Context, auth *nostr.Event, size int, ext string) (bool, string, int) {
+    // check file size
+    if size > maxFileSize {
+        return true, "file too large", 413
+    }
+
+    // check if user is allowed
+    if auth == nil || !allowedUsers[auth.PubKey] {
+        return true, "unauthorized", 403
+    }
+
+    return false, "", 0
+})
+```
+
+There are other `Reject*` hooks you can also implement, but this is the most important one.
+
+## Tracking blob metadata
+
+Blossom needs a database to keep track of blob metadata in order to know which user owns each blob, for example (and mind you that more than one user might own the same blob so when of them deletes the blob we don't actually delete it because the other user still has a claim to it). The simplest way to do it currently is by relying on a wrapper on top of fake Nostr events over eventstore, which is `EventStoreBlobIndexWrapper`, but other solutions can be used.
+
+```go
+db := &badger.BadgerBackend{Path: "/tmp/khatru-badger-blossom-blobstore"}
+db.Init()
+
+bl.Store = blossom.EventStoreBlobIndexWrapper{
+    Store: db,
+    ServiceURL: bl.ServiceURL,
+}
+```
+
+This will store blob metadata as special `kind:24242` events, but you shouldn't have to worry about it as the wrapper handles all the complexity of tracking ownership and managing blob lifecycle. Jut avoid reusing the same datastore that is used for the actual relay events unless you know what you're doing.
--- a/docs/cookbook/embed.md
+++ b/docs/cookbook/embed.md
@@ -69,4 +69,4 @@ Every [`khatru.Relay`](https://pkg.go.dev/github.com/fiatjaf/khatru#Relay) insta

 That's also possible, as long as you have a way of differentiating each HTTP request that comes at the middleware level and associating it with a `khatru.Relay` instance in the background.

-See [dynamic](dynamic) for an example that does that using the subdomain. [`countries`](https://git.fiatjaf.com/countries) does it using the requester country implied from its IP address.
+See [dynamic](../cookbook/dynamic) for an example that does that using the subdomain. [`countries`](https://git.fiatjaf.com/countries) does it using the requester country implied from its IP address.
--- a/docs/cookbook/eventstore.md
+++ b/docs/cookbook/eventstore.md
@@ -2,14 +2,15 @@
 outline: deep
 ---

+# Event Storage
+
+Khatru doesn't make any assumptions about how you'll want to store events. Any function can be plugged in to the `StoreEvent`, `DeleteEvent`, `ReplaceEvent` and `QueryEvents` hooks.
+
+However the [`eventstore`](https://github.com/fiatjaf/eventstore) library has adapters that you can easily plug into `khatru`'s hooks.
+
 # Using the `eventstore` library

-The [`eventstore`](https://github.com/fiatjaf/eventstore) library has adapters that you can easily plug into `khatru`'s:
-
-* `StoreEvent`
-* `DeleteEvent`
-* `QueryEvents`
-* `CountEvents`
+The library includes many different adapters -- often called "backends" --, written by different people and with different levels of quality, reliability and speed.

 For all of them you start by instantiating a struct containing some basic options and a pointer (a file path for local databases, a connection string for remote databases) to the data. Then you call `.Init()` and if all is well you're ready to start storing, querying and deleting events, so you can pass the respective functions to their `khatru` counterparts. These eventstores also expose a `.Close()` function that must be called if you're going to stop using that store and keep your application open.

@@ -38,6 +39,7 @@ func main() {
 	relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
 	relay.CountEvents = append(relay.CountEvents, db.CountEvents)
 	relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
+	relay.ReplaceEvent = append(relay.ReplaceEvent, db.ReplaceEvent)

 	fmt.Println("running on :3334")
 	http.ListenAndServe(":3334", relay)
@@ -95,7 +97,3 @@ For example, maybe you want kind 1 events in `db1` and kind 30023 events in `db3
 		}
 	})
 ```
-
-## Search
-
-See [search](search).
--- a/docs/cookbook/management.md
+++ b/docs/cookbook/management.md
@@ -2,7 +2,7 @@
 outline: deep
 ---

-# Setting up the Relay Management API
+# Management API

 [NIP-86](https://nips.nostr.com/86) specifies a set of RPC methods for managing the boring aspects of relays, such as whitelisting or banning users, banning individual events, banning IPs and so on.

--- a/docs/cookbook/routing.md
+++ b/docs/cookbook/routing.md
@@ -2,7 +2,7 @@
 outline: deep
 ---

-# Routing
+# Request Routing

 If you have one (or more) set of policies that have to be executed in sequence (for example, first you check for the presence of a tag, then later in the next policies you use that tag without checking) and they only apply to some class of events, but you still want your relay to deal with other classes of events that can lead to cumbersome sets of rules, always having to check if an event meets the requirements and so on. There is where routing can help you.

--- a/docs/getting-started/index.md
+++ b/docs/getting-started/index.md
@@ -42,6 +42,7 @@ if err := db.Init(); err != nil {
 relay.StoreEvent = append(relay.StoreEvent, db.SaveEvent)
 relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
 relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
+relay.ReplaceEvent = append(relay.ReplaceEvent, db.ReplaceEvent)
 ```

 These are lists of functions that will be called in order every time an `EVENT` is received, or a `REQ` query is received. You can add more than one handler there, you can have a function that reads from some other server, but just in some cases, you can do anything.
@@ -66,7 +67,7 @@ import "github.com/fiatjaf/khatru" // implied
 relay.RejectEvent = append(relay.RejectEvent, policies.PreventLargeTags(120), policies.PreventTimestampsInThePast(time.Hour * 2), policies.PreventTimestampsInTheFuture(time.Minute * 30))
 ```

-There are many other ways to customize the relay behavior. Take a look at the [`Relay` struct docs](https://pkg.go.dev/github.com/fiatjaf/khatru#Relay) for more, or see the [cookbook](/cookbook/).
+There are many other ways to customize the relay behavior. Take a look at the [`Relay` struct docs](https://pkg.go.dev/github.com/fiatjaf/khatru#Relay) for more, or read the pages on the sidebar.

 The last step is actually running the server. Our relay is actually an `http.Handler`, so it can just be ran directly with `http.ListenAndServe()` from the standard library:

--- a/docs/index.md
+++ b/docs/index.md
@@ -9,9 +9,6 @@ hero:
    - theme: brand
      text: Get Started
      link: /getting-started
-    - theme: alt
-      text: Cookbook
-      link: /cookbook/

 features:
  - title: It's a library
@@ -20,19 +17,19 @@ features:
    details: This is not an executable that you have to tweak with config files, it's a library that you import and use, so you just write code and it does exactly what you want.
  - title: It's very very customizable
    icon: 🎶
-    link: /cookbook/embed
+    link: /core/embed
    details: Run arbitrary functions to reject events, reject filters, overwrite results of queries, perform actual queries, mix the relay stuff with other HTTP handlers or even run it inside an existing website.
  - title: It plugs into event stores easily
    icon: 📦
-    link: /cookbook/eventstore
+    link: /core/eventstore
    details: khatru's companion, the `eventstore` library, provides all methods for storing and querying events efficiently from SQLite, LMDB, Postgres, Badger and others.
  - title: It supports NIP-42 AUTH
    icon: 🪪
-    link: /cookbook/auth
+    link: /core/auth
    details: You can check if a client is authenticated or request AUTH anytime, or reject an event or a filter with an "auth-required:" and it will be handled automatically.
  - title: It supports NIP-86 Management API
    icon: 🛠️
-    link: /cookbook/management
+    link: /core/management
    details: You just define your custom handlers for each RPC call and they will be exposed appropriately to management clients.
  - title: It's written in Go
    icon: 🛵
@@ -52,6 +49,7 @@ func main() {
 	relay.StoreEvent = append(relay.StoreEvent, db.SaveEvent)
 	relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
 	relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
+	relay.ReplaceEvent = append(relay.ReplaceEvent, db.ReplaceEvent)
 	http.ListenAndServe(":3334", relay)
 }
 ```
--- a/docs/use-cases.md
+++ b/docs/use-cases.md
@@ -1,27 +0,0 @@
-# Use cases
-
-`khatru` is being used today in the real world by
-
-* [pyramid](https://github.com/github-tijlxyz/khatru-pyramid), a relay with a invite-based whitelisting system similar to [lobste.rs](https://lobste.rs)
-* [triflector](https://github.com/coracle-social/triflector), a relay which enforces authentication based on custom policy
-* [countries](https://git.fiatjaf.com/countries), a relay that stores and serves content differently according to the country of the reader or writer
-* [jingle](https://github.com/fiatjaf/jingle), a simple relay that exposes part of `khatru`'s configuration options to JavaScript code supplied by the user that is interpreted at runtime
-* [njump](https://git.njump.me/njump), a Nostr gateway to the web that also serves its cached content in a relay interface
-* [song](https://git.fiatjaf.com/song), a personal git server that comes with an embedded relay dedicated to dealing with [NIP-34](https://nips.nostr.com/34) git-related Nostr events
-* [relay29](https://github.com/fiatjaf/relay29), a relay that powers most of the [NIP-29](https://nips.nostr.com/29) Nostr groups ecosystem
-* [fiatjaf.com](https://fiatjaf.com), a personal website that serves the same content as HTML but also as Nostr events.
-* [gm-relay](https://github.com/ptrio42/gm-relay), a relay that only accepts GM notes once a day.
-
-## Other possible use cases
-
-Other possible use cases, still not developed, include:
-
-* Bridges: `khatru` was initially developed to serve as an RSS-to-Nostr bridge server that would fetch RSS feeds on demand in order to serve them to Nostr clients. Other similar use cases could fit.
-* Paid relays: Nostr has multiple relays that charge for write-access currently, but there are many other unexplored ways to make this scheme work: charge per each note, charge per month, charge per month per note, have different payment methods, and so on.
-* Other whitelisting schemes: _pyramid_ implements a cool inviting scheme for granting access to the relay, same for _triflector_, but there are infinite other possibilities of other ways to grant access to people to an exclusive or community relay.
-* Just-in-time content generation: instead of storing a bunch of signed JSON and serving that to clients, there could be relays that store data in a more compact format and turn it into Nostr events at the time they receive a request from a Nostr client -- or relays that do some kind of live data generation based on who is connected, not storing anything.
-* Community relays: some internet communities may want relays that restrict writing or browsing of content only to its members, essentially making it a closed group -- or it could be closed for outsiders to write, but public for them to read and vice-versa.
-* Automated moderation schemes: relays that are owned by a group (either a static or a dynamic group) can rely on signals from their members, like mutes or reports, to decide what content to allow in its domains and what to disallow, making crowdfunded moderation easy.
-* Curation: in the same way as community relays can deal with unwanted content, they can also perform curation based on signals from their members (for example, if a member of the relay likes some note from someone that is outside the relay that note can be fetched and stored), creating a dynamic relay that can be browsed by anyone that share the same interests as that community.
-* Local relays: a relay that can be only browsed by people using the WiFi connection of some event or some building, serving as a way to share temporary or restricted content that only interests people sharing that circumstance.
-* Cool experiments: relays that only allow one note per user per day, relays that require proof-of-work on event ids], relays that require engagement otherwise you get kicked, relays that return events in different ordering, relays that impose arbitrary funny rules on notes in order for them to be accepted (i.e. they must contain the word "poo"), I don't know!
--- a/docs/why.md
+++ b/docs/why.md
@@ -8,3 +8,31 @@ If you want to craft a relay that isn't completely dumb, but it's supposed to
 * and other stuff.

 `khatru` provides a simple framework for creating your custom relay without having to reimplement it all from scratch or hack into other relay codebases.
+
+# Use cases
+
+`khatru` is being used today in the real world by
+
+* [pyramid](https://github.com/github-tijlxyz/khatru-pyramid), a relay with a invite-based whitelisting system similar to [lobste.rs](https://lobste.rs)
+* [triflector](https://github.com/coracle-social/triflector), a relay which enforces authentication based on custom policy
+* [countries](https://git.fiatjaf.com/countries), a relay that stores and serves content differently according to the country of the reader or writer
+* [jingle](https://github.com/fiatjaf/jingle), a simple relay that exposes part of `khatru`'s configuration options to JavaScript code supplied by the user that is interpreted at runtime
+* [njump](https://git.njump.me/njump), a Nostr gateway to the web that also serves its cached content in a relay interface
+* [song](https://git.fiatjaf.com/song), a personal git server that comes with an embedded relay dedicated to dealing with [NIP-34](https://nips.nostr.com/34) git-related Nostr events
+* [relay29](https://github.com/fiatjaf/relay29), a relay that powers most of the [NIP-29](https://nips.nostr.com/29) Nostr groups ecosystem
+* [fiatjaf.com](https://fiatjaf.com), a personal website that serves the same content as HTML but also as Nostr events.
+* [gm-relay](https://github.com/ptrio42/gm-relay), a relay that only accepts GM notes once a day.
+
+## Other possible use cases
+
+Other possible use cases, still not developed, include:
+
+* Bridges: `khatru` was initially developed to serve as an RSS-to-Nostr bridge server that would fetch RSS feeds on demand in order to serve them to Nostr clients. Other similar use cases could fit.
+* Paid relays: Nostr has multiple relays that charge for write-access currently, but there are many other unexplored ways to make this scheme work: charge per each note, charge per month, charge per month per note, have different payment methods, and so on.
+* Other whitelisting schemes: _pyramid_ implements a cool inviting scheme for granting access to the relay, same for _triflector_, but there are infinite other possibilities of other ways to grant access to people to an exclusive or community relay.
+* Just-in-time content generation: instead of storing a bunch of signed JSON and serving that to clients, there could be relays that store data in a more compact format and turn it into Nostr events at the time they receive a request from a Nostr client -- or relays that do some kind of live data generation based on who is connected, not storing anything.
+* Community relays: some internet communities may want relays that restrict writing or browsing of content only to its members, essentially making it a closed group -- or it could be closed for outsiders to write, but public for them to read and vice-versa.
+* Automated moderation schemes: relays that are owned by a group (either a static or a dynamic group) can rely on signals from their members, like mutes or reports, to decide what content to allow in its domains and what to disallow, making crowdfunded moderation easy.
+* Curation: in the same way as community relays can deal with unwanted content, they can also perform curation based on signals from their members (for example, if a member of the relay likes some note from someone that is outside the relay that note can be fetched and stored), creating a dynamic relay that can be browsed by anyone that share the same interests as that community.
+* Local relays: a relay that can be only browsed by people using the WiFi connection of some event or some building, serving as a way to share temporary or restricted content that only interests people sharing that circumstance.
+* Cool experiments: relays that only allow one note per user per day, relays that require proof-of-work on event ids], relays that require engagement otherwise you get kicked, relays that return events in different ordering, relays that impose arbitrary funny rules on notes in order for them to be accepted (i.e. they must contain the word "poo"), I don't know!
--- a/examples/basic-badger/main.go
+++ b/examples/basic-badger/main.go
@@ -20,6 +20,7 @@ func main() {
 	relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
 	relay.CountEvents = append(relay.CountEvents, db.CountEvents)
 	relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
+	relay.ReplaceEvent = append(relay.ReplaceEvent, db.ReplaceEvent)
 	relay.Negentropy = true

 	fmt.Println("running on :3334")
--- a/examples/basic-elasticsearch/main.go
+++ b/examples/basic-elasticsearch/main.go
@@ -20,6 +20,7 @@ func main() {
 	relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
 	relay.CountEvents = append(relay.CountEvents, db.CountEvents)
 	relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
+	relay.ReplaceEvent = append(relay.ReplaceEvent, db.ReplaceEvent)

 	fmt.Println("running on :3334")
 	http.ListenAndServe(":3334", relay)
--- a/examples/basic-lmdb/main.go
+++ b/examples/basic-lmdb/main.go
@@ -22,6 +22,7 @@ func main() {
 	relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
 	relay.CountEvents = append(relay.CountEvents, db.CountEvents)
 	relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
+	relay.ReplaceEvent = append(relay.ReplaceEvent, db.ReplaceEvent)

 	fmt.Println("running on :3334")
 	http.ListenAndServe(":3334", relay)
--- a/examples/basic-postgres/main.go
+++ b/examples/basic-postgres/main.go
@@ -20,6 +20,7 @@ func main() {
 	relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
 	relay.CountEvents = append(relay.CountEvents, db.CountEvents)
 	relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
+	relay.ReplaceEvent = append(relay.ReplaceEvent, db.ReplaceEvent)

 	fmt.Println("running on :3334")
 	http.ListenAndServe(":3334", relay)
--- a/examples/basic-sqlite3/main.go
+++ b/examples/basic-sqlite3/main.go
@@ -20,6 +20,7 @@ func main() {
 	relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
 	relay.CountEvents = append(relay.CountEvents, db.CountEvents)
 	relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
+	relay.ReplaceEvent = append(relay.ReplaceEvent, db.ReplaceEvent)

 	fmt.Println("running on :3334")
 	http.ListenAndServe(":3334", relay)
--- a/examples/blossom/main.go
+++ b/examples/blossom/main.go
@@ -15,18 +15,22 @@ import (
 func main() {
 	relay := khatru.NewRelay()

-	db := &badger.BadgerBackend{Path: "/tmp/khatru-badger-blossom-tmp"}
+	db := &badger.BadgerBackend{Path: "/tmp/khatru-badger-tmp"}
 	if err := db.Init(); err != nil {
 		panic(err)
 	}
-
 	relay.StoreEvent = append(relay.StoreEvent, db.SaveEvent)
 	relay.QueryEvents = append(relay.QueryEvents, db.QueryEvents)
 	relay.CountEvents = append(relay.CountEvents, db.CountEvents)
 	relay.DeleteEvent = append(relay.DeleteEvent, db.DeleteEvent)
+	relay.ReplaceEvent = append(relay.ReplaceEvent, db.ReplaceEvent)

+	bdb := &badger.BadgerBackend{Path: "/tmp/khatru-badger-blossom-tmp"}
+	if err := bdb.Init(); err != nil {
+		panic(err)
+	}
 	bl := blossom.New(relay, "http://localhost:3334")
-	bl.Store = blossom.EventStoreBlobIndexWrapper{Store: db, ServiceURL: bl.ServiceURL}
+	bl.Store = blossom.EventStoreBlobIndexWrapper{Store: bdb, ServiceURL: bl.ServiceURL}
 	bl.StoreBlob = append(bl.StoreBlob, func(ctx context.Context, sha256 string, body []byte) error {
 		fmt.Println("storing", sha256, len(body))
 		return nil
--- a/expiration.go
+++ b/expiration.go
@@ -0,0 +1,150 @@
+package khatru
+
+import (
+	"container/heap"
+	"context"
+	"sync"
+	"time"
+
+	"github.com/nbd-wtf/go-nostr"
+	"github.com/nbd-wtf/go-nostr/nip40"
+)
+
+type expiringEvent struct {
+	id        string
+	expiresAt nostr.Timestamp
+}
+
+type expiringEventHeap []expiringEvent
+
+func (h expiringEventHeap) Len() int           { return len(h) }
+func (h expiringEventHeap) Less(i, j int) bool { return h[i].expiresAt < h[j].expiresAt }
+func (h expiringEventHeap) Swap(i, j int)      { h[i], h[j] = h[j], h[i] }
+
+func (h *expiringEventHeap) Push(x interface{}) {
+	*h = append(*h, x.(expiringEvent))
+}
+
+func (h *expiringEventHeap) Pop() interface{} {
+	old := *h
+	n := len(old)
+	x := old[n-1]
+	*h = old[0 : n-1]
+	return x
+}
+
+type expirationManager struct {
+	events          expiringEventHeap
+	mu              sync.Mutex
+	relay           *Relay
+	interval        time.Duration
+	initialScanDone bool
+}
+
+func newExpirationManager(relay *Relay) *expirationManager {
+	return &expirationManager{
+		events:   make(expiringEventHeap, 0),
+		relay:    relay,
+		interval: time.Hour,
+	}
+}
+
+func (em *expirationManager) start(ctx context.Context) {
+	ticker := time.NewTicker(em.interval)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-ticker.C:
+			if !em.initialScanDone {
+				em.initialScan(ctx)
+				em.initialScanDone = true
+			}
+
+			em.checkExpiredEvents(ctx)
+		}
+	}
+}
+
+func (em *expirationManager) initialScan(ctx context.Context) {
+	em.mu.Lock()
+	defer em.mu.Unlock()
+
+	// query all events
+	ctx = context.WithValue(ctx, internalCallKey, struct{}{})
+	for _, query := range em.relay.QueryEvents {
+		ch, err := query(ctx, nostr.Filter{})
+		if err != nil {
+			continue
+		}
+
+		for evt := range ch {
+			if expiresAt := nip40.GetExpiration(evt.Tags); expiresAt != -1 {
+				heap.Push(&em.events, expiringEvent{
+					id:        evt.ID,
+					expiresAt: expiresAt,
+				})
+			}
+		}
+	}
+
+	heap.Init(&em.events)
+}
+
+func (em *expirationManager) checkExpiredEvents(ctx context.Context) {
+	em.mu.Lock()
+	defer em.mu.Unlock()
+
+	now := nostr.Now()
+
+	// keep deleting events from the heap as long as they're expired
+	for em.events.Len() > 0 {
+		next := em.events[0]
+		if now < next.expiresAt {
+			break
+		}
+
+		heap.Pop(&em.events)
+
+		ctx := context.WithValue(ctx, internalCallKey, struct{}{})
+		for _, query := range em.relay.QueryEvents {
+			ch, err := query(ctx, nostr.Filter{IDs: []string{next.id}})
+			if err != nil {
+				continue
+			}
+
+			if evt := <-ch; evt != nil {
+				for _, del := range em.relay.DeleteEvent {
+					del(ctx, evt)
+				}
+			}
+			break
+		}
+	}
+}
+
+func (em *expirationManager) trackEvent(evt *nostr.Event) {
+	if expiresAt := nip40.GetExpiration(evt.Tags); expiresAt != -1 {
+		em.mu.Lock()
+		heap.Push(&em.events, expiringEvent{
+			id:        evt.ID,
+			expiresAt: expiresAt,
+		})
+		em.mu.Unlock()
+	}
+}
+
+func (em *expirationManager) removeEvent(id string) {
+	em.mu.Lock()
+	defer em.mu.Unlock()
+
+	// Find and remove the event from the heap
+	for i := 0; i < len(em.events); i++ {
+		if em.events[i].id == id {
+			heap.Remove(&em.events, i)
+			break
+		}
+	}
+}
--- a/go.mod
+++ b/go.mod
@@ -1,63 +1,72 @@
 module github.com/fiatjaf/khatru

-go 1.23.1
+go 1.24.1

 require (
 	github.com/bep/debounce v1.2.1
-	github.com/fasthttp/websocket v1.5.7
-	github.com/fiatjaf/eventstore v0.13.0
+	github.com/fasthttp/websocket v1.5.12
+	github.com/fiatjaf/eventstore v0.16.2
 	github.com/liamg/magic v0.0.1
-	github.com/nbd-wtf/go-nostr v0.42.0
-	github.com/puzpuzpuz/xsync/v3 v3.4.0
+	github.com/mailru/easyjson v0.9.0
+	github.com/nbd-wtf/go-nostr v0.51.8
+	github.com/puzpuzpuz/xsync/v3 v3.5.1
 	github.com/rs/cors v1.11.1
-	github.com/stretchr/testify v1.9.0
+	github.com/stretchr/testify v1.10.0
 )

 require (
 	fiatjaf.com/lib v0.2.0 // indirect
-	github.com/PowerDNS/lmdb-go v1.9.2 // indirect
-	github.com/andybalholm/brotli v1.0.5 // indirect
+	github.com/ImVexed/fasturl v0.0.0-20230304231329-4e41488060f3 // indirect
+	github.com/PowerDNS/lmdb-go v1.9.3 // indirect
+	github.com/andybalholm/brotli v1.1.1 // indirect
 	github.com/aquasecurity/esquery v0.2.0 // indirect
 	github.com/btcsuite/btcd/btcec/v2 v2.3.4 // indirect
 	github.com/btcsuite/btcd/chaincfg/chainhash v1.1.0 // indirect
-	github.com/cespare/xxhash v1.1.0 // indirect
+	github.com/bytedance/sonic v1.13.2 // indirect
+	github.com/bytedance/sonic/loader v0.2.4 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/cloudwego/base64x v0.1.5 // indirect
+	github.com/coder/websocket v1.8.13 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/decred/dcrd/crypto/blake256 v1.1.0 // indirect
-	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 // indirect
-	github.com/dgraph-io/badger/v4 v4.3.1 // indirect
-	github.com/dgraph-io/ristretto v1.0.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.0 // indirect
+	github.com/dgraph-io/badger/v4 v4.5.0 // indirect
+	github.com/dgraph-io/ristretto/v2 v2.1.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
-	github.com/elastic/elastic-transport-go/v8 v8.3.0 // indirect
+	github.com/elastic/elastic-transport-go/v8 v8.6.0 // indirect
 	github.com/elastic/go-elasticsearch/v7 v7.17.10 // indirect
-	github.com/elastic/go-elasticsearch/v8 v8.10.1 // indirect
+	github.com/elastic/go-elasticsearch/v8 v8.16.0 // indirect
 	github.com/fatih/structs v1.1.0 // indirect
-	github.com/gobwas/httphead v0.1.0 // indirect
-	github.com/gobwas/pool v0.2.1 // indirect
-	github.com/gobwas/ws v1.4.0 // indirect
-	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
-	github.com/golang/protobuf v1.5.4 // indirect
-	github.com/google/flatbuffers v24.3.25+incompatible // indirect
-	github.com/greatroar/blobloom v0.8.0 // indirect
-	github.com/jmoiron/sqlx v1.3.5 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 // indirect
+	github.com/google/flatbuffers v24.12.23+incompatible // indirect
+	github.com/jmoiron/sqlx v1.4.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
-	github.com/klauspost/compress v1.17.10 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/compress v1.18.0 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.10 // indirect
 	github.com/lib/pq v1.10.9 // indirect
-	github.com/mailru/easyjson v0.7.7 // indirect
-	github.com/mattn/go-sqlite3 v1.14.18 // indirect
+	github.com/mattn/go-sqlite3 v1.14.24 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/savsgio/gotils v0.0.0-20230208104028-c358bd845dee // indirect
-	github.com/tidwall/gjson v1.17.3 // indirect
+	github.com/savsgio/gotils v0.0.0-20240704082632-aef3928b8a38 // indirect
+	github.com/tidwall/gjson v1.18.0 // indirect
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.1 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
-	github.com/valyala/fasthttp v1.51.0 // indirect
+	github.com/valyala/fasthttp v1.59.0 // indirect
 	go.opencensus.io v0.24.0 // indirect
-	golang.org/x/exp v0.0.0-20240909161429-701f63a606c0 // indirect
-	golang.org/x/net v0.30.0 // indirect
-	golang.org/x/sys v0.26.0 // indirect
-	google.golang.org/protobuf v1.35.1 // indirect
+	go.opentelemetry.io/otel v1.32.0 // indirect
+	go.opentelemetry.io/otel/metric v1.32.0 // indirect
+	go.opentelemetry.io/otel/trace v1.32.0 // indirect
+	golang.org/x/arch v0.15.0 // indirect
+	golang.org/x/exp v0.0.0-20250305212735-054e65f0b394 // indirect
+	golang.org/x/net v0.37.0 // indirect
+	golang.org/x/sys v0.31.0 // indirect
+	google.golang.org/protobuf v1.36.2 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
--- a/go.sum
+++ b/go.sum
@@ -1,75 +1,87 @@
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@@ -80,10 +92,8 @@ github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:W
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
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-golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
-golang.org/x/exp v0.0.0-20240909161429-701f63a606c0 h1:e66Fs6Z+fZTbFBAxKfP3PALWBtpfqks2bwGcexMxgtk=
-golang.org/x/exp v0.0.0-20240909161429-701f63a606c0/go.mod h1:2TbTHSBQa924w8M6Xs1QcRcFwyucIwBGpK1p2f1YFFY=
+golang.org/x/exp v0.0.0-20250305212735-054e65f0b394 h1:nDVHiLt8aIbd/VzvPWN6kSOPE7+F/fNFDSXLVYkE/Iw=
+golang.org/x/exp v0.0.0-20250305212735-054e65f0b394/go.mod h1:sIifuuw/Yco/y6yb6+bDNfyeQ/MdPUy/hKEMYQV17cM=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.30.0 h1:AcW1SDZMkb8IpzCdQUaIq2sP4sZ4zw+55h6ynffypl4=
-golang.org/x/net v0.30.0/go.mod h1:2wGyMJ5iFasEhkwi13ChkO/t1ECNC4X4eBKkVFyYFlU=
+golang.org/x/net v0.37.0 h1:1zLorHbz+LYj7MQlSf1+2tPIIgibq2eL5xkrGk6f+2c=
+golang.org/x/net v0.37.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
-golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
+golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -205,13 +220,7 @@ golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
-golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
@@ -231,11 +240,10 @@ google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
-google.golang.org/protobuf v1.35.1 h1:m3LfL6/Ca+fqnjnlqQXNpFPABW1UD7mjh8KO2mKFytA=
-google.golang.org/protobuf v1.35.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+google.golang.org/protobuf v1.36.2 h1:R8FeyR1/eLmkutZOM5CWghmo5itiG9z0ktFlTVLuTmU=
+google.golang.org/protobuf v1.36.2/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
@@ -243,3 +251,4 @@ gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+nullprogram.com/x/optparse v1.0.0/go.mod h1:KdyPE+Igbe0jQUrVfMqDMeJQIJZEuyV7pjYmp6pbG50=
--- a/handlers.go
+++ b/handlers.go
@@ -9,11 +9,15 @@ import (
 	"strings"
 	"sync"
 	"time"
+	"unsafe"

 	"github.com/bep/debounce"
 	"github.com/fasthttp/websocket"
 	"github.com/nbd-wtf/go-nostr"
 	"github.com/nbd-wtf/go-nostr/nip42"
+	"github.com/nbd-wtf/go-nostr/nip45"
+	"github.com/nbd-wtf/go-nostr/nip45/hyperloglog"
+	"github.com/nbd-wtf/go-nostr/nip70"
 	"github.com/nbd-wtf/go-nostr/nip77"
 	"github.com/nbd-wtf/go-nostr/nip77/negentropy"
 	"github.com/puzpuzpuz/xsync/v3"
@@ -22,10 +26,6 @@ import (

 // ServeHTTP implements http.Handler interface.
 func (rl *Relay) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	if rl.ServiceURL == "" {
-		rl.ServiceURL = getServiceBaseURL(r)
-	}
-
 	corsMiddleware := cors.New(cors.Options{
 		AllowedOrigins: []string{"*"},
 		AllowedMethods: []string{
@@ -117,8 +117,10 @@ func (rl *Relay) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
 			onconnect(ctx)
 		}

+		smp := nostr.NewMessageParser()
+
 		for {
-			typ, message, err := ws.conn.ReadMessage()
+			typ, msgb, err := ws.conn.ReadMessage()
 			if err != nil {
 				if websocket.IsUnexpectedCloseError(
 					err,
@@ -128,7 +130,7 @@ func (rl *Relay) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
 					websocket.CloseAbnormalClosure,  // 1006
 					4537,                            // some client seems to send many of these
 				) {
-					rl.Log.Printf("unexpected close error from %s: %v\n", r.Header.Get("X-Forwarded-For"), err)
+					rl.Log.Printf("unexpected close error from %s: %v\n", GetIPFromRequest(r), err)
 				}
 				ws.cancel()
 				return
@@ -139,15 +141,19 @@ func (rl *Relay) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
 				continue
 			}

-			go func(message []byte) {
-				envelope := nostr.ParseMessage(message)
-				if envelope == nil {
-					if !rl.Negentropy {
-						// stop silently
-						return
+			message := unsafe.String(unsafe.SliceData(msgb), len(msgb))
+
+			// parse messages sequentially otherwise sonic breaks
+			envelope, err := smp.ParseMessage(message)
+
+			// then delegate to the goroutine
+			go func(message string) {
+				if err != nil {
+					if err == nostr.UnknownLabel && rl.Negentropy {
+						envelope = nip77.ParseNegMessage(message)
 					}
-					envelope = nip77.ParseNegMessage(message)
 					if envelope == nil {
+						ws.WriteJSON(nostr.NoticeEnvelope("failed to parse envelope: " + err.Error()))
 						return
 					}
 				}
@@ -170,28 +176,31 @@ func (rl *Relay) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
 					}

 					// check NIP-70 protected
-					for _, v := range env.Event.Tags {
-						if len(v) == 1 && v[0] == "-" {
-							msg := "must be published by event author"
-							authed := GetAuthed(ctx)
-							if authed == "" {
-								RequestAuth(ctx)
-								ws.WriteJSON(nostr.OKEnvelope{
-									EventID: env.Event.ID,
-									OK:      false,
-									Reason:  "auth-required: " + msg,
-								})
-								return
-							}
-							if authed != env.Event.PubKey {
-								ws.WriteJSON(nostr.OKEnvelope{
-									EventID: env.Event.ID,
-									OK:      false,
-									Reason:  "blocked: " + msg,
-								})
-								return
-							}
+					if nip70.IsProtected(env.Event) {
+						authed := GetAuthed(ctx)
+						if authed == "" {
+							RequestAuth(ctx)
+							ws.WriteJSON(nostr.OKEnvelope{
+								EventID: env.Event.ID,
+								OK:      false,
+								Reason:  "auth-required: must be published by authenticated event author",
+							})
+							return
+						} else if authed != env.Event.PubKey {
+							ws.WriteJSON(nostr.OKEnvelope{
+								EventID: env.Event.ID,
+								OK:      false,
+								Reason:  "blocked: must be published by event author",
+							})
+							return
 						}
+					} else if nip70.HasEmbeddedProtected(env.Event) {
+						ws.WriteJSON(nostr.OKEnvelope{
+							EventID: env.Event.ID,
+							OK:      false,
+							Reason:  "blocked: can't repost nip70 protected",
+						})
+						return
 					}

 					srl := rl
@@ -228,20 +237,36 @@ func (rl *Relay) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
 					}
 					ws.WriteJSON(nostr.OKEnvelope{EventID: env.Event.ID, OK: ok, Reason: reason})
 				case *nostr.CountEnvelope:
-					if rl.CountEvents == nil {
+					if rl.CountEvents == nil && rl.CountEventsHLL == nil {
 						ws.WriteJSON(nostr.ClosedEnvelope{SubscriptionID: env.SubscriptionID, Reason: "unsupported: this relay does not support NIP-45"})
 						return
 					}

 					var total int64
-					for _, filter := range env.Filters {
-						srl := rl
-						if rl.getSubRelayFromFilter != nil {
-							srl = rl.getSubRelayFromFilter(filter)
-						}
-						total += srl.handleCountRequest(ctx, ws, filter)
+					var hll *hyperloglog.HyperLogLog
+					uneligibleForHLL := false
+
+					srl := rl
+					if rl.getSubRelayFromFilter != nil {
+						srl = rl.getSubRelayFromFilter(env.Filter)
 					}
-					ws.WriteJSON(nostr.CountEnvelope{SubscriptionID: env.SubscriptionID, Count: &total})
+
+					if offset := nip45.HyperLogLogEventPubkeyOffsetForFilter(env.Filter); offset != -1 && !uneligibleForHLL {
+						total, hll = srl.handleCountRequestWithHLL(ctx, ws, env.Filter, offset)
+					} else {
+						total = srl.handleCountRequest(ctx, ws, env.Filter)
+					}
+
+					resp := nostr.CountEnvelope{
+						SubscriptionID: env.SubscriptionID,
+						Count:          &total,
+					}
+					if hll != nil {
+						resp.HyperLogLog = hll.GetRegisters()
+					}
+
+					ws.WriteJSON(resp)
+
 				case *nostr.ReqEnvelope:
 					eose := sync.WaitGroup{}
 					eose.Add(len(env.Filters))
@@ -274,17 +299,15 @@ func (rl *Relay) HandleWebsocket(w http.ResponseWriter, r *http.Request) {
 					}

 					go func() {
-						// when all events have been loaded from databases and dispatched
-						// we can cancel the context and fire the EOSE message
+						// when all events have been loaded from databases and dispatched we can fire the EOSE message
 						eose.Wait()
-						cancelReqCtx(nil)
 						ws.WriteJSON(nostr.EOSEEnvelope(env.SubscriptionID))
 					}()
 				case *nostr.CloseEnvelope:
 					id := string(*env)
 					rl.removeListenerId(ws, id)
 				case *nostr.AuthEnvelope:
-					wsBaseUrl := strings.Replace(rl.ServiceURL, "http", "ws", 1)
+					wsBaseUrl := strings.Replace(rl.getBaseURL(r), "http", "ws", 1)
 					if pubkey, ok := nip42.ValidateAuthEvent(&env.Event, ws.Challenge, wsBaseUrl); ok {
 						ws.AuthedPublicKey = pubkey
 						ws.authLock.Lock()
--- a/helpers.go
+++ b/helpers.go
@@ -3,7 +3,6 @@ package khatru
 import (
 	"net"
 	"net/http"
-	"strconv"
 	"strings"

 	"github.com/nbd-wtf/go-nostr"
@@ -14,28 +13,6 @@ func isOlder(previous, next *nostr.Event) bool {
 		(previous.CreatedAt == next.CreatedAt && previous.ID > next.ID)
 }

-func getServiceBaseURL(r *http.Request) string {
-	host := r.Header.Get("X-Forwarded-Host")
-	if host == "" {
-		host = r.Host
-	}
-	proto := r.Header.Get("X-Forwarded-Proto")
-	if proto == "" {
-		if host == "localhost" {
-			proto = "http"
-		} else if strings.Index(host, ":") != -1 {
-			// has a port number
-			proto = "http"
-		} else if _, err := strconv.Atoi(strings.ReplaceAll(host, ".", "")); err == nil {
-			// it's a naked IP
-			proto = "http"
-		} else {
-			proto = "https"
-		}
-	}
-	return proto + "://" + host
-}
-
 var privateMasks = func() []net.IPNet {
 	privateCIDRs := []string{
 		"127.0.0.0/8",
--- a/nip11.go
+++ b/nip11.go
@@ -3,6 +3,7 @@ package khatru
 import (
 	"encoding/json"
 	"net/http"
+	"strings"
 )

 func (rl *Relay) HandleNIP11(w http.ResponseWriter, r *http.Request) {
@@ -20,6 +21,15 @@ func (rl *Relay) HandleNIP11(w http.ResponseWriter, r *http.Request) {
 		info.AddSupportedNIP(77)
 	}

+	// resolve relative icon and banner URLs against base URL
+	baseURL := rl.getBaseURL(r)
+	if info.Icon != "" && !strings.HasPrefix(info.Icon, "http://") && !strings.HasPrefix(info.Icon, "https://") {
+		info.Icon = strings.TrimSuffix(baseURL, "/") + "/" + strings.TrimPrefix(info.Icon, "/")
+	}
+	if info.Banner != "" && !strings.HasPrefix(info.Banner, "http://") && !strings.HasPrefix(info.Banner, "https://") {
+		info.Banner = strings.TrimSuffix(baseURL, "/") + "/" + strings.TrimPrefix(info.Banner, "/")
+	}
+
 	for _, ovw := range rl.OverwriteRelayInformation {
 		info = ovw(r.Context(), r, info)
 	}
--- a/nip86.go
+++ b/nip86.go
@@ -28,15 +28,21 @@ type RelayManagementAPI struct {
 	AllowEvent                  func(ctx context.Context, id string, reason string) error
 	BanEvent                    func(ctx context.Context, id string, reason string) error
 	ListBannedEvents            func(ctx context.Context) ([]nip86.IDReason, error)
+	ListAllowedEvents           func(ctx context.Context) ([]nip86.IDReason, error)
 	ChangeRelayName             func(ctx context.Context, name string) error
 	ChangeRelayDescription      func(ctx context.Context, desc string) error
 	ChangeRelayIcon             func(ctx context.Context, icon string) error
 	AllowKind                   func(ctx context.Context, kind int) error
 	DisallowKind                func(ctx context.Context, kind int) error
 	ListAllowedKinds            func(ctx context.Context) ([]int, error)
+	ListDisAllowedKinds         func(ctx context.Context) ([]int, error)
 	BlockIP                     func(ctx context.Context, ip net.IP, reason string) error
 	UnblockIP                   func(ctx context.Context, ip net.IP, reason string) error
 	ListBlockedIPs              func(ctx context.Context) ([]nip86.IPReason, error)
+	Stats                       func(ctx context.Context) (nip86.Response, error)
+	GrantAdmin                  func(ctx context.Context, pubkey string, methods []string) error
+	RevokeAdmin                 func(ctx context.Context, pubkey string, methods []string) error
+	Generic                     func(ctx context.Context, request nip86.Request) (nip86.Response, error)
 }

 func (rl *Relay) HandleNIP86(w http.ResponseWriter, r *http.Request) {
@@ -80,7 +86,7 @@ func (rl *Relay) HandleNIP86(w http.ResponseWriter, r *http.Request) {
 			goto respond
 		}

-		if uTag := evt.Tags.GetFirst([]string{"u", ""}); uTag == nil || rl.ServiceURL != (*uTag)[1] {
+		if uTag := evt.Tags.GetFirst([]string{"u", ""}); uTag == nil || rl.getBaseURL(r) != (*uTag)[1] {
 			resp.Error = "invalid 'u' tag"
 			goto respond
 		} else if pht := evt.Tags.GetFirst([]string{"payload", hex.EncodeToString(payloadHash[:])}); pht == nil {
@@ -266,8 +272,54 @@ func (rl *Relay) HandleNIP86(w http.ResponseWriter, r *http.Request) {
 			} else {
 				resp.Result = result
 			}
+		case nip86.Stats:
+			if rl.ManagementAPI.Stats == nil {
+				resp.Error = fmt.Sprintf("method %s not supported", thing.MethodName())
+			} else if result, err := rl.ManagementAPI.Stats(ctx); err != nil {
+				resp.Error = err.Error()
+			} else {
+				resp.Result = result
+			}
+		case nip86.GrantAdmin:
+			if rl.ManagementAPI.GrantAdmin == nil {
+				resp.Error = fmt.Sprintf("method %s not supported", thing.MethodName())
+			} else if err := rl.ManagementAPI.GrantAdmin(ctx, thing.Pubkey, thing.AllowMethods); err != nil {
+				resp.Error = err.Error()
+			} else {
+				resp.Result = true
+			}
+		case nip86.RevokeAdmin:
+			if rl.ManagementAPI.RevokeAdmin == nil {
+				resp.Error = fmt.Sprintf("method %s not supported", thing.MethodName())
+			} else if err := rl.ManagementAPI.RevokeAdmin(ctx, thing.Pubkey, thing.DisallowMethods); err != nil {
+				resp.Error = err.Error()
+			} else {
+				resp.Result = true
+			}
+		case nip86.ListDisallowedKinds:
+			if rl.ManagementAPI.ListDisAllowedKinds == nil {
+				resp.Error = fmt.Sprintf("method %s not supported", thing.MethodName())
+			} else if result, err := rl.ManagementAPI.ListDisAllowedKinds(ctx); err != nil {
+				resp.Error = err.Error()
+			} else {
+				resp.Result = result
+			}
+		case nip86.ListAllowedEvents:
+			if rl.ManagementAPI.ListAllowedEvents == nil {
+				resp.Error = fmt.Sprintf("method %s not supported", thing.MethodName())
+			} else if result, err := rl.ManagementAPI.ListAllowedEvents(ctx); err != nil {
+				resp.Error = err.Error()
+			} else {
+				resp.Result = result
+			}
 		default:
-			resp.Error = fmt.Sprintf("method '%s' not known", mp.MethodName())
+			if rl.ManagementAPI.Generic == nil {
+				resp.Error = fmt.Sprintf("method '%s' not known", mp.MethodName())
+			} else if result, err := rl.ManagementAPI.Generic(ctx, req); err != nil {
+				resp.Error = err.Error()
+			} else {
+				resp.Result = result
+			}
 		}
 	}

--- a/policies/events.go
+++ b/policies/events.go
@@ -8,6 +8,7 @@ import (
 	"time"

 	"github.com/nbd-wtf/go-nostr"
+	"github.com/nbd-wtf/go-nostr/nip70"
 )

 // PreventTooManyIndexableTags returns a function that can be used as a RejectFilter that will reject
@@ -107,3 +108,10 @@ func PreventTimestampsInTheFuture(threshold time.Duration) func(context.Context,
 func RejectEventsWithBase64Media(ctx context.Context, evt *nostr.Event) (bool, string) {
 	return strings.Contains(evt.Content, "data:image/") || strings.Contains(evt.Content, "data:video/"), "event with base64 media"
 }
+
+func OnlyAllowNIP70ProtectedEvents(ctx context.Context, event *nostr.Event) (reject bool, msg string) {
+	if nip70.IsProtected(*event) {
+		return false, ""
+	}
+	return true, "blocked: we only accept events protected with the nip70 \"-\" tag"
+}
--- a/policies/filters.go
+++ b/policies/filters.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"slices"

+	"github.com/fiatjaf/khatru"
 	"github.com/nbd-wtf/go-nostr"
 )

@@ -18,6 +19,14 @@ func NoComplexFilters(ctx context.Context, filter nostr.Filter) (reject bool, ms
 	return false, ""
 }

+// MustAuth requires all subscribers to be authenticated
+func MustAuth(ctx context.Context, filter nostr.Filter) (reject bool, msg string) {
+	if khatru.GetAuthed(ctx) == "" {
+		return true, "auth-required: all requests must be authenticated"
+	}
+	return false, ""
+}
+
 // NoEmptyFilters disallows filters that don't have at least a tag, a kind, an author or an id.
 func NoEmptyFilters(ctx context.Context, filter nostr.Filter) (reject bool, msg string) {
 	c := len(filter.Kinds) + len(filter.IDs) + len(filter.Authors)
--- a/policies/sane_defaults.go
+++ b/policies/sane_defaults.go
@@ -9,7 +9,7 @@ import (
 func ApplySaneDefaults(relay *khatru.Relay) {
 	relay.RejectEvent = append(relay.RejectEvent,
 		RejectEventsWithBase64Media,
-		EventIPRateLimiter(2, time.Minute*3, 5),
+		EventIPRateLimiter(2, time.Minute*3, 10),
 	)

 	relay.RejectFilter = append(relay.RejectFilter,
@@ -18,6 +18,6 @@ func ApplySaneDefaults(relay *khatru.Relay) {
 	)

 	relay.RejectConnection = append(relay.RejectConnection,
-		ConnectionRateLimiter(1, time.Minute*5, 10),
+		ConnectionRateLimiter(1, time.Minute*5, 100),
 	)
 }
--- a/relay.go
+++ b/relay.go
@@ -5,22 +5,27 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"strconv"
+	"strings"
 	"sync"
 	"time"

 	"github.com/fasthttp/websocket"
 	"github.com/nbd-wtf/go-nostr"
 	"github.com/nbd-wtf/go-nostr/nip11"
+	"github.com/nbd-wtf/go-nostr/nip45/hyperloglog"
 )

 func NewRelay() *Relay {
+	ctx := context.Background()
+
 	rl := &Relay{
 		Log: log.New(os.Stderr, "[khatru-relay] ", log.LstdFlags),

 		Info: &nip11.RelayInformationDocument{
 			Software:      "https://github.com/fiatjaf/khatru",
 			Version:       "n/a",
-			SupportedNIPs: []int{1, 11, 42, 70, 86},
+			SupportedNIPs: []any{1, 11, 40, 42, 70, 86},
 		},

 		upgrader: websocket.Upgrader{
@@ -40,25 +45,30 @@ func NewRelay() *Relay {
 		MaxMessageSize: 512000,
 	}

+	rl.expirationManager = newExpirationManager(rl)
+	go rl.expirationManager.start(ctx)
+
 	return rl
 }

 type Relay struct {
+	// setting this variable overwrites the hackish workaround we do to try to figure out our own base URL
 	ServiceURL string

 	// hooks that will be called at various times
 	RejectEvent               []func(ctx context.Context, event *nostr.Event) (reject bool, msg string)
 	OverwriteDeletionOutcome  []func(ctx context.Context, target *nostr.Event, deletion *nostr.Event) (acceptDeletion bool, msg string)
 	StoreEvent                []func(ctx context.Context, event *nostr.Event) error
+	ReplaceEvent              []func(ctx context.Context, event *nostr.Event) error
 	DeleteEvent               []func(ctx context.Context, event *nostr.Event) error
 	OnEventSaved              []func(ctx context.Context, event *nostr.Event)
 	OnEphemeralEvent          []func(ctx context.Context, event *nostr.Event)
 	RejectFilter              []func(ctx context.Context, filter nostr.Filter) (reject bool, msg string)
 	RejectCountFilter         []func(ctx context.Context, filter nostr.Filter) (reject bool, msg string)
 	OverwriteFilter           []func(ctx context.Context, filter *nostr.Filter)
-	OverwriteCountFilter      []func(ctx context.Context, filter *nostr.Filter)
 	QueryEvents               []func(ctx context.Context, filter nostr.Filter) (chan *nostr.Event, error)
 	CountEvents               []func(ctx context.Context, filter nostr.Filter) (int64, error)
+	CountEventsHLL            []func(ctx context.Context, filter nostr.Filter, offset int) (int64, *hyperloglog.HyperLogLog, error)
 	RejectConnection          []func(r *http.Request) bool
 	OnConnect                 []func(ctx context.Context)
 	OnDisconnect              []func(ctx context.Context)
@@ -103,4 +113,33 @@ type Relay struct {
 	PongWait       time.Duration // Time allowed to read the next pong message from the peer.
 	PingPeriod     time.Duration // Send pings to peer with this period. Must be less than pongWait.
 	MaxMessageSize int64         // Maximum message size allowed from peer.
+
+	// NIP-40 expiration manager
+	expirationManager *expirationManager
+}
+
+func (rl *Relay) getBaseURL(r *http.Request) string {
+	if rl.ServiceURL != "" {
+		return rl.ServiceURL
+	}
+
+	host := r.Header.Get("X-Forwarded-Host")
+	if host == "" {
+		host = r.Host
+	}
+	proto := r.Header.Get("X-Forwarded-Proto")
+	if proto == "" {
+		if host == "localhost" {
+			proto = "http"
+		} else if strings.Contains(host, ":") {
+			// has a port number
+			proto = "http"
+		} else if _, err := strconv.Atoi(strings.ReplaceAll(host, ".", "")); err == nil {
+			// it's a naked IP
+			proto = "http"
+		} else {
+			proto = "https"
+		}
+	}
+	return proto + "://" + host
 }
--- a/relay_test.go
+++ b/relay_test.go
@@ -0,0 +1,361 @@
+package khatru
+
+import (
+	"context"
+	"net/http/httptest"
+	"strconv"
+	"testing"
+	"time"
+
+	"github.com/fiatjaf/eventstore/slicestore"
+	"github.com/nbd-wtf/go-nostr"
+)
+
+func TestBasicRelayFunctionality(t *testing.T) {
+	// setup relay with in-memory store
+	relay := NewRelay()
+	store := slicestore.SliceStore{}
+	store.Init()
+	relay.StoreEvent = append(relay.StoreEvent, store.SaveEvent)
+	relay.QueryEvents = append(relay.QueryEvents, store.QueryEvents)
+	relay.DeleteEvent = append(relay.DeleteEvent, store.DeleteEvent)
+
+	// start test server
+	server := httptest.NewServer(relay)
+	defer server.Close()
+
+	// create test keys
+	sk1 := nostr.GeneratePrivateKey()
+	pk1, err := nostr.GetPublicKey(sk1)
+	if err != nil {
+		t.Fatalf("Failed to get public key 1: %v", err)
+	}
+	sk2 := nostr.GeneratePrivateKey()
+	pk2, err := nostr.GetPublicKey(sk2)
+	if err != nil {
+		t.Fatalf("Failed to get public key 2: %v", err)
+	}
+
+	// helper to create signed events
+	createEvent := func(sk string, kind int, content string, tags nostr.Tags) nostr.Event {
+		pk, err := nostr.GetPublicKey(sk)
+		if err != nil {
+			t.Fatalf("Failed to get public key: %v", err)
+		}
+		evt := nostr.Event{
+			PubKey:    pk,
+			CreatedAt: nostr.Now(),
+			Kind:      kind,
+			Tags:      tags,
+			Content:   content,
+		}
+		evt.Sign(sk)
+		return evt
+	}
+
+	// connect two test clients
+	url := "ws" + server.URL[4:]
+	client1, err := nostr.RelayConnect(context.Background(), url)
+	if err != nil {
+		t.Fatalf("failed to connect client1: %v", err)
+	}
+	defer client1.Close()
+
+	client2, err := nostr.RelayConnect(context.Background(), url)
+	if err != nil {
+		t.Fatalf("failed to connect client2: %v", err)
+	}
+	defer client2.Close()
+
+	// test 1: store and query events
+	t.Run("store and query events", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+
+		evt1 := createEvent(sk1, 1, "hello world", nil)
+		err := client1.Publish(ctx, evt1)
+		if err != nil {
+			t.Fatalf("failed to publish event: %v", err)
+		}
+
+		// Query the event back
+		sub, err := client2.Subscribe(ctx, []nostr.Filter{{
+			Authors: []string{pk1},
+			Kinds:   []int{1},
+		}})
+		if err != nil {
+			t.Fatalf("failed to subscribe: %v", err)
+		}
+		defer sub.Unsub()
+
+		// Wait for event
+		select {
+		case env := <-sub.Events:
+			if env.ID != evt1.ID {
+				t.Errorf("got wrong event: %v", env.ID)
+			}
+		case <-ctx.Done():
+			t.Fatal("timeout waiting for event")
+		}
+	})
+
+	// test 2: live event subscription
+	t.Run("live event subscription", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+
+		// Setup subscription first
+		sub, err := client1.Subscribe(ctx, []nostr.Filter{{
+			Authors: []string{pk2},
+			Kinds:   []int{1},
+		}})
+		if err != nil {
+			t.Fatalf("failed to subscribe: %v", err)
+		}
+		defer sub.Unsub()
+
+		// Publish event from client2
+		evt2 := createEvent(sk2, 1, "testing live events", nil)
+		err = client2.Publish(ctx, evt2)
+		if err != nil {
+			t.Fatalf("failed to publish event: %v", err)
+		}
+
+		// Wait for event on subscription
+		select {
+		case env := <-sub.Events:
+			if env.ID != evt2.ID {
+				t.Errorf("got wrong event: %v", env.ID)
+			}
+		case <-ctx.Done():
+			t.Fatal("timeout waiting for live event")
+		}
+	})
+
+	// test 3: event deletion
+	t.Run("event deletion", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+
+		// Create an event to be deleted
+		evt3 := createEvent(sk1, 1, "delete me", nil)
+		err = client1.Publish(ctx, evt3)
+		if err != nil {
+			t.Fatalf("failed to publish event: %v", err)
+		}
+
+		// Create deletion event
+		delEvent := createEvent(sk1, 5, "deleting", nostr.Tags{{"e", evt3.ID}})
+		err = client1.Publish(ctx, delEvent)
+		if err != nil {
+			t.Fatalf("failed to publish deletion event: %v", err)
+		}
+
+		// Try to query the deleted event
+		sub, err := client2.Subscribe(ctx, []nostr.Filter{{
+			IDs: []string{evt3.ID},
+		}})
+		if err != nil {
+			t.Fatalf("failed to subscribe: %v", err)
+		}
+		defer sub.Unsub()
+
+		// Should get EOSE without receiving the deleted event
+		gotEvent := false
+		for {
+			select {
+			case <-sub.Events:
+				gotEvent = true
+			case <-sub.EndOfStoredEvents:
+				if gotEvent {
+					t.Error("should not have received deleted event")
+				}
+				return
+			case <-ctx.Done():
+				t.Fatal("timeout waiting for EOSE")
+			}
+		}
+	})
+
+	// test 4: teplaceable events
+	t.Run("replaceable events", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+
+		// create initial kind:0 event
+		evt1 := createEvent(sk1, 0, `{"name":"initial"}`, nil)
+		evt1.CreatedAt = 1000 // Set specific timestamp for testing
+		evt1.Sign(sk1)
+		err = client1.Publish(ctx, evt1)
+		if err != nil {
+			t.Fatalf("failed to publish initial event: %v", err)
+		}
+
+		// create newer event that should replace the first
+		evt2 := createEvent(sk1, 0, `{"name":"newer"}`, nil)
+		evt2.CreatedAt = 2000 // Newer timestamp
+		evt2.Sign(sk1)
+		err = client1.Publish(ctx, evt2)
+		if err != nil {
+			t.Fatalf("failed to publish newer event: %v", err)
+		}
+
+		// create older event that should not replace the current one
+		evt3 := createEvent(sk1, 0, `{"name":"older"}`, nil)
+		evt3.CreatedAt = 1500 // Older than evt2
+		evt3.Sign(sk1)
+		err = client1.Publish(ctx, evt3)
+		if err != nil {
+			t.Fatalf("failed to publish older event: %v", err)
+		}
+
+		// query to verify only the newest event exists
+		sub, err := client2.Subscribe(ctx, []nostr.Filter{{
+			Authors: []string{pk1},
+			Kinds:   []int{0},
+		}})
+		if err != nil {
+			t.Fatalf("failed to subscribe: %v", err)
+		}
+		defer sub.Unsub()
+
+		// should only get one event back (the newest one)
+		var receivedEvents []*nostr.Event
+		for {
+			select {
+			case env := <-sub.Events:
+				receivedEvents = append(receivedEvents, env)
+			case <-sub.EndOfStoredEvents:
+				if len(receivedEvents) != 1 {
+					t.Errorf("expected exactly 1 event, got %d", len(receivedEvents))
+				}
+				if len(receivedEvents) > 0 && receivedEvents[0].Content != `{"name":"newer"}` {
+					t.Errorf("expected newest event content, got %s", receivedEvents[0].Content)
+				}
+				return
+			case <-ctx.Done():
+				t.Fatal("timeout waiting for events")
+			}
+		}
+	})
+
+	// test 5: event expiration
+	t.Run("event expiration", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		defer cancel()
+
+		// create a new relay with shorter expiration check interval
+		relay := NewRelay()
+		relay.expirationManager.interval = 3 * time.Second // check every 3 seconds
+		store := slicestore.SliceStore{}
+		store.Init()
+		relay.StoreEvent = append(relay.StoreEvent, store.SaveEvent)
+		relay.QueryEvents = append(relay.QueryEvents, store.QueryEvents)
+		relay.DeleteEvent = append(relay.DeleteEvent, store.DeleteEvent)
+
+		// start test server
+		server := httptest.NewServer(relay)
+		defer server.Close()
+
+		// connect test client
+		url := "ws" + server.URL[4:]
+		client, err := nostr.RelayConnect(context.Background(), url)
+		if err != nil {
+			t.Fatalf("failed to connect client: %v", err)
+		}
+		defer client.Close()
+
+		// create event that expires in 2 seconds
+		expiration := strconv.FormatInt(int64(nostr.Now()+2), 10)
+		evt := createEvent(sk1, 1, "i will expire soon", nostr.Tags{{"expiration", expiration}})
+		err = client.Publish(ctx, evt)
+		if err != nil {
+			t.Fatalf("failed to publish event: %v", err)
+		}
+
+		// verify event exists initially
+		sub, err := client.Subscribe(ctx, []nostr.Filter{{
+			IDs: []string{evt.ID},
+		}})
+		if err != nil {
+			t.Fatalf("failed to subscribe: %v", err)
+		}
+
+		// should get the event
+		select {
+		case env := <-sub.Events:
+			if env.ID != evt.ID {
+				t.Error("got wrong event")
+			}
+		case <-ctx.Done():
+			t.Fatal("timeout waiting for event")
+		}
+		sub.Unsub()
+
+		// wait for expiration check (>3 seconds)
+		time.Sleep(4 * time.Second)
+
+		// verify event no longer exists
+		sub, err = client.Subscribe(ctx, []nostr.Filter{{
+			IDs: []string{evt.ID},
+		}})
+		if err != nil {
+			t.Fatalf("failed to subscribe: %v", err)
+		}
+		defer sub.Unsub()
+
+		// should get EOSE without receiving the expired event
+		gotEvent := false
+		for {
+			select {
+			case <-sub.Events:
+				gotEvent = true
+			case <-sub.EndOfStoredEvents:
+				if gotEvent {
+					t.Error("should not have received expired event")
+				}
+				return
+			case <-ctx.Done():
+				t.Fatal("timeout waiting for EOSE")
+			}
+		}
+	})
+
+	// test 6: unauthorized deletion
+	t.Run("unauthorized deletion", func(t *testing.T) {
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+
+		// create an event from client1
+		evt4 := createEvent(sk1, 1, "try to delete me", nil)
+		err = client1.Publish(ctx, evt4)
+		if err != nil {
+			t.Fatalf("failed to publish event: %v", err)
+		}
+
+		// Try to delete it with client2
+		delEvent := createEvent(sk2, 5, "trying to delete", nostr.Tags{{"e", evt4.ID}})
+		err = client2.Publish(ctx, delEvent)
+		if err == nil {
+			t.Fatalf("should have failed to publish deletion event: %v", err)
+		}
+
+		// Verify event still exists
+		sub, err := client1.Subscribe(ctx, []nostr.Filter{{
+			IDs: []string{evt4.ID},
+		}})
+		if err != nil {
+			t.Fatalf("failed to subscribe: %v", err)
+		}
+		defer sub.Unsub()
+
+		select {
+		case env := <-sub.Events:
+			if env.ID != evt4.ID {
+				t.Error("got wrong event")
+			}
+		case <-ctx.Done():
+			t.Fatal("event should still exist")
+		}
+	})
+}
--- a/responding.go
+++ b/responding.go
@@ -6,6 +6,7 @@ import (
 	"sync"

 	"github.com/nbd-wtf/go-nostr"
+	"github.com/nbd-wtf/go-nostr/nip45/hyperloglog"
 )

 func (rl *Relay) handleRequest(ctx context.Context, id string, eose *sync.WaitGroup, ws *WebSocket, filter nostr.Filter) error {
@@ -61,12 +62,7 @@ func (rl *Relay) handleRequest(ctx context.Context, id string, eose *sync.WaitGr
 }

 func (rl *Relay) handleCountRequest(ctx context.Context, ws *WebSocket, filter nostr.Filter) int64 {
-	// overwrite the filter (for example, to eliminate some kinds or tags that we know we don't support)
-	for _, ovw := range rl.OverwriteCountFilter {
-		ovw(ctx, &filter)
-	}
-
-	// then check if we'll reject this filter
+	// check if we'll reject this filter
 	for _, reject := range rl.RejectCountFilter {
 		if rejecting, msg := reject(ctx, filter); rejecting {
 			ws.WriteJSON(nostr.NoticeEnvelope(msg))
@@ -86,3 +82,38 @@ func (rl *Relay) handleCountRequest(ctx context.Context, ws *WebSocket, filter n

 	return subtotal
 }
+
+func (rl *Relay) handleCountRequestWithHLL(
+	ctx context.Context,
+	ws *WebSocket,
+	filter nostr.Filter,
+	offset int,
+) (int64, *hyperloglog.HyperLogLog) {
+	// check if we'll reject this filter
+	for _, reject := range rl.RejectCountFilter {
+		if rejecting, msg := reject(ctx, filter); rejecting {
+			ws.WriteJSON(nostr.NoticeEnvelope(msg))
+			return 0, nil
+		}
+	}
+
+	// run the functions to count (generally it will be just one)
+	var subtotal int64 = 0
+	var hll *hyperloglog.HyperLogLog
+	for _, countHLL := range rl.CountEventsHLL {
+		res, fhll, err := countHLL(ctx, filter, offset)
+		if err != nil {
+			ws.WriteJSON(nostr.NoticeEnvelope(err.Error()))
+		}
+		subtotal += res
+		if fhll != nil {
+			if hll == nil {
+				hll = fhll
+			} else {
+				hll.Merge(fhll)
+			}
+		}
+	}
+
+	return subtotal, hll
+}
--- a/utils.go
+++ b/utils.go
@@ -10,6 +10,7 @@ const (
 	wsKey = iota
 	subscriptionIdKey
 	nip86HeaderAuthKey
+	internalCallKey
 )

 func RequestAuth(ctx context.Context) {
@@ -40,6 +41,12 @@ func GetAuthed(ctx context.Context) string {
 	return ""
 }

+// IsInternalCall returns true when a call to QueryEvents, for example, is being made because of a deletion
+// or expiration request.
+func IsInternalCall(ctx context.Context) bool {
+	return ctx.Value(internalCallKey) != nil
+}
+
 func GetIP(ctx context.Context) string {
 	conn := GetConnection(ctx)
 	if conn == nil {
--- a/websocket.go
+++ b/websocket.go
@@ -33,12 +33,14 @@ type WebSocket struct {

 func (ws *WebSocket) WriteJSON(any any) error {
 	ws.mutex.Lock()
-	defer ws.mutex.Unlock()
-	return ws.conn.WriteJSON(any)
+	err := ws.conn.WriteJSON(any)
+	ws.mutex.Unlock()
+	return err
 }

 func (ws *WebSocket) WriteMessage(t int, b []byte) error {
 	ws.mutex.Lock()
-	defer ws.mutex.Unlock()
-	return ws.conn.WriteMessage(t, b)
+	err := ws.conn.WriteMessage(t, b)
+	ws.mutex.Unlock()
+	return err
 }
Author	SHA1	Message	Date
fiatjaf	d97a2f1cf2	initialScan()	2025-04-04 17:55:16 -03:00
fiatjaf	c9a7d60543	remove event from expiration manager if it is deleted.	2025-04-03 23:11:47 -03:00
fiatjaf	2bb6d4d29a	simplify WriteMessage, remove the `defer` since it's not needed.	2025-04-03 23:10:39 -03:00
fiatjaf	2292ce4a30	add missing return in repost protected clause.	2025-04-03 23:10:11 -03:00
fiatjaf	2ae219a34c	add khatru.IsInternal() for dealing with internal calls specifically in QueryEvents()	2025-04-03 23:06:57 -03:00
fiatjaf	8c9394993b	reject reposts that embed nip70 protected events. in accordance with new stuff added to nip70 that makes some sense.	2025-03-28 18:08:49 -03:00
fiatjaf	850497956c	include checkid length check from @pippellia-btc	2025-03-24 15:57:20 -03:00
andrewheadricke	28ce6cfb7a	ensure suspected blossom request hash does not have slashes in it	2025-03-24 15:23:00 -03:00
fiatjaf	f47282c745	get rid of base64x temporarily since it doesn't work on arm64.	2025-03-19 15:02:56 -03:00
fiatjaf	f72dea346f	rename menu item on docs to say "blossom".	2025-03-17 13:38:35 -03:00
fiatjaf	51632dcc9f	update blossom example to use a different database. closes https://github.com/fiatjaf/khatru/issues/36	2025-03-17 13:36:41 -03:00
andrewheadricke	6cc2477e89	fix blossom upload < 50bytes	2025-03-15 01:58:07 -03:00
fiatjaf	581c4ece28	updating go-nostr to fix sonic parser bug.	2025-03-14 20:10:52 -03:00
fiatjaf	596bca93c3	go-nostr MessageParser string transition.	2025-03-12 00:53:19 -03:00
fiatjaf	650d9209c3	policies: nip70 enforcer.	2025-03-11 17:42:27 -03:00
fiatjaf	0d736cff82	fix blossom authorization decoder.	2025-03-11 17:32:12 -03:00
fiatjaf	44ed6f519d	use NewMessageParser() that allows sonic to be opted in with tags.	2025-03-11 17:32:04 -03:00
fiatjaf	db832d4255	use sonic json parser and other minor performance improvements.	2025-03-07 21:47:34 -03:00
fiatjaf	625bde38c5	update go-nostr so CountEnvelope only has one filter, which simplies COUNT handling a lot, specially with HLL.	2025-03-07 10:11:58 -03:00
fiatjaf	7c6031f4e5	resolve relative icon and banner urls in nip11 handler.	2025-02-23 18:21:23 -03:00
ZigBalthazar	6e224b9437	nip-86: stats, grant/revoke admin, listallowedevents and listdisallowedkinds	2025-02-19 12:50:21 -03:00
Kay	e9030a355c	nip-86: add generic handler.	2025-02-10 09:27:52 -03:00
fiatjaf	a6ed7bced0	do not cancel subscription context on eose, only on subscription close.	2025-02-09 20:46:53 -03:00
fiatjaf	31128ebd18	filter policy: MustAuth()	2025-02-02 14:30:28 -03:00
k.	414867e62c	feat(blossom): add bud-09 reporting handler. (#29 )	2025-02-01 18:03:17 -03:00
Kay	65383d6d65	making it a little better, so compiler wont complain.	2025-01-28 15:26:38 -03:00
Anthony Accioly	c4d9ef1025	fix(blossom): respond with 401 on missing Auth	2025-01-26 17:23:29 -03:00
fiatjaf	5e5a53240a	docs: fix broken links.	2025-01-13 17:40:51 -03:00
fiatjaf	3a9c88603b	add blossom page.	2025-01-13 17:38:10 -03:00
fiatjaf	2403f82dac	improve eventstore page.	2025-01-13 17:37:57 -03:00
fiatjaf	a289a77b6e	restructure docs to have a more useful sidebar.	2025-01-13 17:33:58 -03:00
fiatjaf	1a03178d83	test expiration.	2025-01-13 17:02:15 -03:00
fiatjaf	c73037ac82	test replaceable events.	2025-01-13 16:52:17 -03:00
fiatjaf	433cceea86	include the ReplaceEvent setup on all examples.	2025-01-13 16:47:21 -03:00
fiatjaf	aa7422b2e4	tests for basic relay functionality.	2025-01-13 08:06:25 -03:00
fiatjaf	d27f582a0b	nip-40 expiration manager.	2025-01-13 08:06:13 -03:00
fiatjaf	e1de0432fe	fix @staab's mess.	2024-12-31 22:15:15 -03:00
Jon Staab	5b9b89543f	Get service url when handling auth rather than mutating the relay, allow user to override service url via env var	2024-12-31 22:10:13 -03:00
fiatjaf	4dba9376a0	sanedefaults: allow a bigger burst of connections and events.	2024-12-10 23:40:03 -03:00
fiatjaf	fa523a6ab9	blossom: etag and cache-control headers.	2024-12-09 15:41:29 -03:00
fiatjaf	abbe61d128	use ReplaceEvent when available.	2024-12-08 00:50:29 -03:00
fiatjaf	e9999feec0	turns out we need to bump a version because of annoying hex nips.	2024-12-07 07:58:20 -03:00
fiatjaf	6275f52134	support hyperloglog handlers on COUNT.	2024-12-07 00:26:22 -03:00