Allow opting out of signature validation

src/Subscription.ts

@@ -10,6 +10,7 @@ export type SubscriptionOpts = {
   timeout?: number
   closeOnEose?: boolean
   hasSeen?: (e: Event, url: string) => boolean
+  shouldValidate?: (e: Event, url: string) => boolean
 }
 
 export class Subscription extends EventEmitter {
@@ -69,13 +70,21 @@ export class Subscription extends EventEmitter {
     return false
   }
 
+  hasValidSignature = (event: Event, url: string) => {
+    if (this.opts.shouldValidate && !this.opts.shouldValidate(event, url)) {
+      return true
+    }
+
+    return hasValidSignature(event)
+  }
+
   onEvent = (url: string, event: Event) => {
     // If we've seen this event, don't re-validate
     // Otherwise, check the signature and filters
     if (this.hasSeen(event, url)) {
       this.emit("duplicate", event, url)
     } else {
-      if (!hasValidSignature(event)) {
+      if (!this.hasValidSignature(event, url)) {
         this.emit("invalid-signature", event, url)
       } else if (!matchFilters(this.opts.filters, event)) {
         this.emit("failed-filter", event, url)

src/util/nostr.ts

@@ -217,6 +217,8 @@ export class Tags extends Fluent<string[]> {
 
   replies = (type = null) => this.getAncestors(type).replies
 
+  communities = () => this.type("a").values().filter(a => a.startsWith('34550:'))
+
   getReply = (type = null) => this.replies(type).values().first()
 
   getRoot = (type = null) => this.roots(type).values().first()
@@ -224,8 +226,6 @@ export class Tags extends Fluent<string[]> {
   getReplyHints = (type = null) => this.replies(type).relays().all()
 
   getRootHints = (type = null) => this.roots(type).relays().all()
-
-  communities = () => this.type("a").values().filter(a => a.startsWith('34550:'))
 }
 
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