feed: subscribe to pow events

if difficulty-filter is set the subscription of the global feed
can filter only ids with 0-prefix to save bandwidth.

as there may not be many pow events within the last 24h, the
date range is now only enabled if there is no diffculty-filter
set so that the feed is not empty.

if this works as expected it could also only subscripe to
reactions and profile info with pow ids.

deps: update nostr-tools to 1.10.1

This version supports subscribing to prefixed ids, see
3bdb68020d

package-lock.json

@@ -8,7 +8,7 @@
       "name": "nostrweb",
       "version": "0.0.28",
       "dependencies": {
-        "nostr-tools": "1.6.0"
+        "nostr-tools": "1.10.1"
       },
       "devDependencies": {
         "@esbuild-plugins/node-globals-polyfill": "^0.1.1",
@@ -43,24 +43,10 @@
         "node": ">=12"
       }
     },
-    "node_modules/@noble/curves": {
+    "node_modules/@noble/hashes": {
-      "version": "1.0.0",
+      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/@noble/curves/-/curves-1.0.0.tgz",
+      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.2.0.tgz",
-      "integrity": "sha512-2upgEu0iLiDVDZkNLeFV2+ht0BAVgQnEmCk6JsOch9Rp8xfkMCbvbAZlA2pBHQc73dbl+vFOXfqkf4uemdn0bw==",
+      "integrity": "sha512-FZfhjEDbT5GRswV3C6uvLPHMiVD6lQBmpoX5+eSiPaMTXte/IKqI5dykDxzZB/WBeK/CDuQRBWarPdi3FNY2zQ==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://paulmillr.com/funding/"
-        }
-      ],
-      "dependencies": {
-        "@noble/hashes": "1.3.0"
-      }
-    },
-    "node_modules/@noble/curves/node_modules/@noble/hashes": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.3.0.tgz",
-      "integrity": "sha512-ilHEACi9DwqJB0pw7kv+Apvh50jiiSyR/cQ3y4W7lOR5mhvn/50FLUfsnfJz0BDZtl/RR16kXvptiv6q1msYZg==",
       "funding": [
         {
           "type": "individual",
@@ -68,11 +54,6 @@
         }
       ]
     },
-    "node_modules/@noble/hashes": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.0.0.tgz",
-      "integrity": "sha512-DZVbtY62kc3kkBtMHqwCOfXrT/hnoORy5BJ4+HU1IR59X0KWAOqsfzQPcUl/lQLlG7qXbe/fZ3r/emxtAl+sqg=="
-    },
     "node_modules/@noble/secp256k1": {
       "version": "1.7.1",
       "resolved": "https://registry.npmjs.org/@noble/secp256k1/-/secp256k1-1.7.1.tgz",
@@ -96,9 +77,9 @@
       ]
     },
     "node_modules/@scure/bip32": {
-      "version": "1.3.0",
+      "version": "1.1.4",
-      "resolved": "https://registry.npmjs.org/@scure/bip32/-/bip32-1.3.0.tgz",
+      "resolved": "https://registry.npmjs.org/@scure/bip32/-/bip32-1.1.4.tgz",
-      "integrity": "sha512-bcKpo1oj54hGholplGLpqPHRbIsnbixFtc06nwuNM5/dwSXOq/AAYoIBRsBmnZJSdfeNW5rnff7NTAz3ZCqR9Q==",
+      "integrity": "sha512-m925ACYK0wPELsF7Z/VdLGmKj1StIeHraPMYB9xiAFiq/PnvqWd/99I0TQ2OZhjjlMDsDJeZlyXMWi0beaA7NA==",
       "funding": [
         {
           "type": "individual",
@@ -106,26 +87,15 @@
         }
       ],
       "dependencies": {
-        "@noble/curves": "~1.0.0",
+        "@noble/hashes": "~1.2.0",
-        "@noble/hashes": "~1.3.0",
+        "@noble/secp256k1": "~1.7.0",
         "@scure/base": "~1.1.0"
       }
     },
-    "node_modules/@scure/bip32/node_modules/@noble/hashes": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.3.0.tgz",
-      "integrity": "sha512-ilHEACi9DwqJB0pw7kv+Apvh50jiiSyR/cQ3y4W7lOR5mhvn/50FLUfsnfJz0BDZtl/RR16kXvptiv6q1msYZg==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://paulmillr.com/funding/"
-        }
-      ]
-    },
     "node_modules/@scure/bip39": {
-      "version": "1.2.0",
+      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/@scure/bip39/-/bip39-1.2.0.tgz",
+      "resolved": "https://registry.npmjs.org/@scure/bip39/-/bip39-1.1.1.tgz",
-      "integrity": "sha512-SX/uKq52cuxm4YFXWFaVByaSHJh2w3BnokVSeUJVCv6K7WulT9u2BuNRBhuFl8vAuYnzx9bEu9WgpcNYTrYieg==",
+      "integrity": "sha512-t+wDck2rVkh65Hmv280fYdVdY25J9YeEUIgn2LG1WM6gxFkGzcksoDiUkWVpVp3Oex9xGC68JU2dSbUfwZ2jPg==",
       "funding": [
         {
           "type": "individual",
@@ -133,21 +103,10 @@
         }
       ],
       "dependencies": {
-        "@noble/hashes": "~1.3.0",
+        "@noble/hashes": "~1.2.0",
         "@scure/base": "~1.1.0"
       }
     },
-    "node_modules/@scure/bip39/node_modules/@noble/hashes": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.3.0.tgz",
-      "integrity": "sha512-ilHEACi9DwqJB0pw7kv+Apvh50jiiSyR/cQ3y4W7lOR5mhvn/50FLUfsnfJz0BDZtl/RR16kXvptiv6q1msYZg==",
-      "funding": [
-        {
-          "type": "individual",
-          "url": "https://paulmillr.com/funding/"
-        }
-      ]
-    },
     "node_modules/abort-controller": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/abort-controller/-/abort-controller-3.0.0.tgz",
@@ -605,30 +564,15 @@
       ]
     },
     "node_modules/nostr-tools": {
-      "version": "1.6.0",
+      "version": "1.10.1",
-      "resolved": "https://registry.npmjs.org/nostr-tools/-/nostr-tools-1.6.0.tgz",
+      "resolved": "https://registry.npmjs.org/nostr-tools/-/nostr-tools-1.10.1.tgz",
-      "integrity": "sha512-qjjJQ7YxJUMzgS24eVlxkZ87PKJtU6dlH04OzVuK6w+GSPL+VdUZkMe2lfSpnb7OkCrDIzmbFbtx+Q4LXdU2xw==",
+      "integrity": "sha512-zgTYJeuZQ3CDASsmBEcB5i6V6l0IaA6cjnll6OVik3FoZcvbCaL7yP8I40hYnOIi3KlJykV7jEF9fn8h1NzMnA==",
       "dependencies": {
-        "@noble/hashes": "1.0.0",
+        "@noble/hashes": "1.2.0",
-        "@noble/secp256k1": "^1.7.1",
+        "@noble/secp256k1": "1.7.1",
-        "@scure/base": "^1.1.1",
+        "@scure/base": "1.1.1",
-        "@scure/bip32": "^1.1.5",
+        "@scure/bip32": "1.1.4",
-        "@scure/bip39": "^1.1.1",
+        "@scure/bip39": "1.1.1"
-        "prettier": "^2.8.4"
-      }
-    },
-    "node_modules/prettier": {
-      "version": "2.8.7",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.7.tgz",
-      "integrity": "sha512-yPngTo3aXUUmyuTjeTUT75txrf+aMh9FiD7q9ZE/i6r0bPb22g4FsE6Y338PQX1bmfy08i9QQCB7/rcUAVntfw==",
-      "bin": {
-        "prettier": "bin-prettier.js"
-      },
-      "engines": {
-        "node": ">=10.13.0"
-      },
-      "funding": {
-        "url": "https://github.com/prettier/prettier?sponsor=1"
       }
     },
     "node_modules/process": {

package.json

@@ -11,7 +11,7 @@
     "readable-stream": "4.3.0"
   },
   "dependencies": {
-    "nostr-tools": "1.6.0"
+    "nostr-tools": "1.10.1"
   },
   "scripts": {
     "build": "node tools/build.js",

src/main.ts

@@ -3,10 +3,10 @@ import {zeroLeadingBitsCount} from './utils/crypto';
 import {elem} from './utils/dom';
 import {bounce} from './utils/time';
 import {isWssUrl} from './utils/url';
+import {closeSettingsView, config, toggleSettingsView} from './settings';
 import {sub24hFeed, subNote, subProfile} from './subscriptions'
 import {getReplyTo, hasEventTag, isMention, sortByCreatedAt, sortEventCreatedAt} from './events';
 import {clearView, getViewContent, getViewElem, getViewOptions, setViewElem, view} from './view';
-import {closeSettingsView, config, toggleSettingsView} from './settings';
 import {handleReaction, handleUpvote} from './reactions';
 import {closePublishView, openWriteInput, togglePublishView} from './write';
 import {handleMetadata, renderProfile} from './profiles';

src/subscriptions.ts

@@ -1,5 +1,6 @@
 import {Event} from 'nostr-tools';
 import {getReplyTo, hasEventTag, isMention} from './events';
+import {config} from './settings';
 import {sub, subOnce, unsubAll} from './relays';
 
 type SubCallback = (
@@ -13,6 +14,7 @@ export const sub24hFeed = (onEvent: SubCallback) => {
   const now = Math.floor(Date.now() * 0.001);
   const pubkeys = new Set<string>();
   const notes = new Set<string>();
+  const prefix = Math.floor(config.filterDifficulty / 4); //  4 bits in each '0' character
   sub({ // get past events
     cb: (evt, relay) => {
       pubkeys.add(evt.pubkey);
@@ -20,9 +22,10 @@ export const sub24hFeed = (onEvent: SubCallback) => {
       onEvent(evt, relay);
     },
     filter: {
+      ...(prefix && {ids: ['0'.repeat(prefix)]}),
       kinds: [1],
       until: now,
-      since: Math.floor(now - (24 * 60 * 60)),
+      ...(!prefix && {since: Math.floor(now - (24 * 60 * 60))}),
       limit: 100,
     },
     unsub: true
@@ -76,6 +79,7 @@ export const sub24hFeed = (onEvent: SubCallback) => {
       });
     },
     filter: {
+      ...(prefix && {ids: ['0'.repeat(prefix)]}),
       kinds: [0, 1, 7],
       since: now,
     },