update main spam checker for kind awarenes

Needed to make things more robust and take individual kinds into account
This commit is contained in:
Enki 2024-12-20 10:03:18 +00:00
parent 0908385008
commit 084aab7847

View File

@ -1,6 +1,9 @@
#!/usr/bin/env node
const fs = require('fs');
const path = require('path');
const KindAwareContentChecker = require(path.join(__dirname, 'kind-aware-content-checker.js'));
const contentChecker = new KindAwareContentChecker();
// Configuration
const config = {
@ -10,31 +13,64 @@ const config = {
recentEventWindow: 3600, // 1 hour in seconds
contentSimilarityThreshold: 0.8,
relayUrl: "freelay.sovbit.host",
useBlacklistWhitelist: false,
// Periodic cleanup intervals
cleanupInterval: 300, // 5 minutes
statsRetentionPeriod: 86400, // 24 hours
globalMaxEventsPerMinute: 50,
globalMaxEventsPerHour: 600,
// Enhanced reputation system
newPubkeyReplyThreshold: 60,
newPubkeyMaxPostsIn5Min: 10,
// Kind-specific limits with new burst handling
kindSpecificLimits: {
0: {
maxPerHour: 10, // Profile updates
minTimeBetween: 300 // 5 minutes between updates
},
1: { // Regular posts
maxPerMinute: 30,
maxPerHour: 200
},
3: { // Follow lists
maxPerMinute: 120, // Allow more frequent updates for bulk operations
maxPerHour: 360, // One update every 10 seconds average
minTimeBetween: 2, // Reduced from 30 to 2 seconds
ignoreSimilarity: true, // Don't check content similarity
burstAllowance: { // New burst handling
maxBurst: 500, // Maximum events in burst
burstWindow: 300, // Window for burst (5 minutes)
cooldownPeriod: 3600 // Cooldown after burst (1 hour)
}
},
7: { // Reactions
maxPerMinute: 60,
maxPerHour: 300,
ignoreSimilarity: true
},
10002: {
maxPerHour: 12, // Relay List updates
minTimeBetween: 300 // 5 minutes between updates
}
},
// Enhanced reputation system config
reputationConfig: {
initialScore: 100,
goodEventBonus: 1,
spamPenalty: -15, // Base penalty
recoveryRate: 3, // Base recovery rate
minScore: -100, // Absolute minimum
spamPenalty: -15,
recoveryRate: 3,
minScore: -100,
maxScore: 1000,
trustThreshold: 50,
blockThreshold: -50, // Start blocking at this point
blockRecoveryThreshold: -25, // Must recover to this to post again
blockThreshold: -50,
blockRecoveryThreshold: -25,
// Progressive penalties
penaltyScaling: {
0: -15, // Normal penalty above 0 reputation
"-25": -20, // Harsher penalty below -25
"-50": -25 // Even harsher below -50
},
// Recovery scaling
recoveryScaling: {
0: 3, // Normal recovery above 0
"-25": 2, // Slower recovery below -25
@ -42,56 +78,51 @@ const config = {
}
},
// Kind-specific limits
kindSpecificLimits: {
0: { // Profile updates
maxPerHour: 10
},
3: { // Contacts
maxPerHour: 5
},
1: { // Regular posts
maxPerMinute: 30,
maxPerHour: 200
}
},
// New user limits
newPubkeyReplyThreshold: 60,
newPubkeyMaxPostsIn5Min: 10,
allowedKinds: [3, 5, 10001, 10002, 30311, 10050],
bypassAllChecksKinds: [38383],
// Cleanup settings
cleanupInterval: 300, // 5 minutes
statsRetentionPeriod: 86400, // 24 hours
allowedKinds: [3, 5, 10001, 10002, 30311], // Kinds that bypass content similarity check
bypassAllChecksKinds: [38383]
};
// In-memory stores with cleanup
// In-memory stores
const recentEvents = [];
const authorStats = new Map();
const authorReputation = new Map();
const newPubkeyPostCount = new Map();
const userViolationHistory = new Map(); // Track violation history
const userViolationHistory = new Map();
const lastKindUpdates = new Map(); // Track last update time per kind per user
function log(message) {
console.error(`[${new Date().toISOString()}] ${message}`);
}
function logWithReputation(pubkey, message) {
const reputation = getAuthorReputation(pubkey).score;
log(`${message} (reputation: ${reputation.toFixed(2)})`);
}
function recordViolation(pubkey, eventKind, reason, penalty) {
if (!userViolationHistory.has(pubkey)) {
userViolationHistory.set(pubkey, []);
}
const history = userViolationHistory.get(pubkey);
const currentReputation = getAuthorReputation(pubkey).score;
history.push({
timestamp: Date.now(),
eventKind: eventKind,
reason: reason,
penalty: penalty,
currentReputation: getAuthorReputation(pubkey).score
currentReputation: currentReputation
});
// Keep only last 50 violations
logWithReputation(pubkey, `Violation recorded for kind ${eventKind}: ${reason} (penalty: ${penalty})`);
if (history.length > 50) {
history.shift();
history.shift(); // Keep only last 50 violations
}
}
@ -101,15 +132,16 @@ function getAuthorReputation(pubkey) {
score: config.reputationConfig.initialScore,
lastUpdate: Date.now()
});
log(`New reputation created for ${pubkey} with initial score ${config.reputationConfig.initialScore}`);
}
return authorReputation.get(pubkey);
}
function updateReputation(pubkey, isSpam, eventKind, spamReason) {
const reputation = getAuthorReputation(pubkey);
const oldScore = reputation.score;
const hoursSinceLastUpdate = (Date.now() - reputation.lastUpdate) / (1000 * 60 * 60);
// Get appropriate recovery rate based on current score
let recoveryRate = config.reputationConfig.recoveryRate;
for (const [threshold, rate] of Object.entries(config.reputationConfig.recoveryScaling)
.sort((a, b) => Number(b[0]) - Number(a[0]))) {
@ -119,15 +151,18 @@ function updateReputation(pubkey, isSpam, eventKind, spamReason) {
}
}
// Apply scaled recovery
reputation.score = Math.min(
config.reputationConfig.maxScore,
reputation.score + (hoursSinceLastUpdate * recoveryRate)
);
if (isSpam) {
// Get appropriate penalty based on current score
let penalty = config.reputationConfig.spamPenalty;
// Reduce penalty for follow list violations
if (eventKind === 3) {
penalty = penalty / 2;
}
for (const [threshold, pen] of Object.entries(config.reputationConfig.penaltyScaling)
.sort((a, b) => Number(b[0]) - Number(a[0]))) {
if (reputation.score <= Number(threshold)) {
@ -136,8 +171,6 @@ function updateReputation(pubkey, isSpam, eventKind, spamReason) {
}
}
reputation.score += penalty;
// Record the violation
recordViolation(pubkey, eventKind, spamReason, penalty);
} else {
reputation.score += config.reputationConfig.goodEventBonus;
@ -149,22 +182,34 @@ function updateReputation(pubkey, isSpam, eventKind, spamReason) {
);
reputation.lastUpdate = Date.now();
// Log reputation changes
const change = reputation.score - oldScore;
if (change !== 0) {
log(`Reputation update for ${pubkey}: ${oldScore.toFixed(2)} -> ${reputation.score.toFixed(2)} (change: ${change >= 0 ? '+' : ''}${change.toFixed(2)})`);
}
return reputation.score;
}
function canUserPost(pubkey, eventKind) {
const reputation = getAuthorReputation(pubkey);
// Special case for follow lists - be more lenient
if (eventKind === 3 && reputation.score > -75) {
logWithReputation(pubkey, `Follow list exception applied for kind 3`);
return true;
}
if (reputation.score <= config.reputationConfig.blockThreshold) {
if (reputation.score < config.reputationConfig.blockRecoveryThreshold) {
// Get violation history
const history = userViolationHistory.get(pubkey) || [];
const recentViolations = history
.slice(-5) // Get last 5 violations
.slice(-5)
.map(v => `\n - ${new Date(v.timestamp).toISOString()}: kind ${v.eventKind}, ${v.reason} (penalty: ${v.penalty})`)
.join('');
log(`User ${pubkey} blocked from posting: reputation (${reputation.score.toFixed(2)}) below recovery threshold
log(`User ${pubkey} blocked: reputation (${reputation.score.toFixed(2)}) below recovery threshold
Recent violations:${recentViolations || '\n No recent violations recorded'}`);
return false;
}
@ -172,44 +217,47 @@ Recent violations:${recentViolations || '\n No recent violations recorded'}`)
return true;
}
function getKindSpecificLimits(kind) {
return config.kindSpecificLimits[kind] || {
maxPerMinute: config.maxRepliesPerMinute,
maxPerHour: config.maxRepliesPerHour
};
}
function updateAuthorStats(pubkey, timestamp, kind) {
if (config.bypassAllChecksKinds.includes(kind)) return;
const now = Date.now();
if (!authorStats.has(pubkey)) {
authorStats.set(pubkey, {
lastReply: now,
lastReply: Date.now(),
repliesLastMinute: 0,
repliesLastHour: 0,
lastReset: now,
kinds: new Map()
lastReset: Date.now(),
kinds: new Map(),
burstTracking: new Map()
});
logWithReputation(pubkey, `New author stats created`);
}
const stats = authorStats.get(pubkey);
const timeSinceLastReset = now - stats.lastReset;
// Reset counters if needed
if (timeSinceLastReset >= 3600000) { // 1 hour
const now = Date.now();
// Initialize burst tracking for kind 3
if (kind === 3 && !stats.burstTracking.has(kind)) {
stats.burstTracking.set(kind, {
burstCount: 0,
burstStart: now,
lastBurstEnd: 0
});
logWithReputation(pubkey, `Initialized burst tracking for kind 3`);
}
if (now - stats.lastReset >= 3600000) {
stats.repliesLastHour = 0;
stats.repliesLastMinute = 0;
stats.lastReset = now;
stats.kinds.clear();
} else if (timeSinceLastReset >= 60000) { // 1 minute
logWithReputation(pubkey, `Stats reset (hourly)`);
} else if (now - stats.lastReset >= 60000) {
stats.repliesLastMinute = 0;
logWithReputation(pubkey, `Stats reset (minute)`);
}
// Update kind-specific counters
if (!stats.kinds.has(kind)) {
stats.kinds.set(kind, { hourly: 0, lastReset: now });
}
const kindStats = stats.kinds.get(kind);
if (now - kindStats.lastReset >= 3600000) {
kindStats.hourly = 0;
@ -220,105 +268,122 @@ function updateAuthorStats(pubkey, timestamp, kind) {
stats.repliesLastMinute++;
stats.repliesLastHour++;
stats.lastReply = now;
logWithReputation(pubkey,
`Stats updated - minute: ${stats.repliesLastMinute}, hour: ${stats.repliesLastHour}, kind ${kind}: ${kindStats.hourly}`);
}
function isRateLimitExceeded(pubkey, kind) {
const stats = authorStats.get(pubkey);
if (!stats) return false;
const kindLimits = getKindSpecificLimits(kind);
const kindStats = stats.kinds.get(kind);
const now = Date.now();
const kindLimits = config.kindSpecificLimits[kind] || {
maxPerMinute: config.maxRepliesPerMinute,
maxPerHour: config.maxRepliesPerHour
};
// Consider reputation in rate limiting
const reputation = getAuthorReputation(pubkey);
const reputationMultiplier = Math.max(0.5, Math.min(2, reputation.score / 100));
const adjustedMinuteLimit = kindLimits.maxPerMinute * reputationMultiplier;
const adjustedHourLimit = kindLimits.maxPerHour * reputationMultiplier;
// Special handling for follow list bursts
if (kind === 3 && kindLimits.burstAllowance) {
const burstTracking = stats.burstTracking.get(kind);
if (burstTracking) {
const { burstCount, burstStart, lastBurstEnd } = burstTracking;
const { maxBurst, burstWindow, cooldownPeriod } = kindLimits.burstAllowance;
const exceeded =
stats.repliesLastMinute > adjustedMinuteLimit ||
stats.repliesLastHour > adjustedHourLimit ||
(kindStats && kindStats.hourly > kindLimits.maxPerHour);
if (exceeded) {
log(`Rate limit exceeded for ${pubkey} (reputation: ${reputation.score.toFixed(2)}, kind: ${kind})`);
// Check if we're in cooldown period
if (lastBurstEnd > 0 && now - lastBurstEnd < cooldownPeriod * 1000) {
logWithReputation(pubkey, `In burst cooldown period for kind 3`);
return isNormalRateLimitExceeded(stats, kindLimits);
}
// Check if we're in an active burst
else if (now - burstStart < burstWindow * 1000) {
if (burstCount >= maxBurst) {
burstTracking.lastBurstEnd = now;
burstTracking.burstCount = 0;
logWithReputation(pubkey, `Burst limit reached (${maxBurst} events), entering cooldown`);
return true;
}
burstTracking.burstCount++;
logWithReputation(pubkey, `In active burst - count: ${burstCount + 1}`);
return false;
}
// Start new burst
else {
burstTracking.burstStart = now;
burstTracking.burstCount = 1;
logWithReputation(pubkey, `Starting new burst for kind 3`);
return false;
}
}
}
return exceeded;
// Check minimum time between updates if specified
if (kindLimits.minTimeBetween) {
const lastUpdate = lastKindUpdates.get(`${pubkey}:${kind}`) || 0;
if (now - lastUpdate < kindLimits.minTimeBetween * 1000) {
logWithReputation(pubkey, `Too frequent updates for kind ${kind}`);
return true;
}
}
return isNormalRateLimitExceeded(stats, kindLimits);
}
function isNormalRateLimitExceeded(stats, kindLimits) {
const reputation = getAuthorReputation(stats.pubkey);
const reputationMultiplier = Math.max(0.5, Math.min(2, reputation.score / 100));
if (kindLimits.maxPerMinute) {
const adjustedMinuteLimit = kindLimits.maxPerMinute * reputationMultiplier;
if (stats.repliesLastMinute > adjustedMinuteLimit) {
logWithReputation(stats.pubkey,
`Per-minute rate limit exceeded: ${stats.repliesLastMinute} > ${adjustedMinuteLimit} (base: ${kindLimits.maxPerMinute}, multiplier: ${reputationMultiplier.toFixed(2)})`);
return true;
}
}
if (kindLimits.maxPerHour) {
const adjustedHourLimit = kindLimits.maxPerHour * reputationMultiplier;
if (stats.repliesLastHour > adjustedHourLimit) {
logWithReputation(stats.pubkey,
`Hourly rate limit exceeded: ${stats.repliesLastHour} > ${adjustedHourLimit} (base: ${kindLimits.maxPerHour}, multiplier: ${reputationMultiplier.toFixed(2)})`);
return true;
}
}
return false;
}
function isFastReply(event, recentEvents) {
if (event.kind !== 1) return false;
const replyTo = event.tags.find(tag => tag[0] === 'e');
if (replyTo) {
const originalEvent = recentEvents.find(e => e.id === replyTo[1]);
if (originalEvent && event.created_at - originalEvent.created_at <= config.fastReplyThreshold) {
log(`Fast reply detected: ${event.created_at - originalEvent.created_at} seconds to ${originalEvent.id}`);
logWithReputation(event.pubkey,
`Fast reply detected: ${event.created_at - originalEvent.created_at} seconds to ${originalEvent.id}`);
return true;
}
}
return false;
}
function calculateSimilarity(str1, str2) {
const len1 = str1.length;
const len2 = str2.length;
const maxLength = Math.max(len1, len2);
if (maxLength === 0) return 1.0;
return (maxLength - levenshteinDistance(str1, str2)) / maxLength;
}
function levenshteinDistance(str1, str2) {
const m = str1.length;
const n = str2.length;
const dp = Array.from({ length: m + 1 }, () => Array(n + 1).fill(0));
for (let i = 0; i <= m; i++) dp[i][0] = i;
for (let j = 0; j <= n; j++) dp[0][j] = j;
for (let i = 1; i <= m; i++) {
for (let j = 1; j <= n; j++) {
if (str1[i - 1] === str2[j - 1]) {
dp[i][j] = dp[i - 1][j - 1];
} else {
dp[i][j] = Math.min(
dp[i - 1][j - 1],
dp[i - 1][j],
dp[i][j - 1]
) + 1;
}
}
}
return dp[m][n];
}
function isContentCopy(event, recentEvents) {
if (config.allowedKinds.includes(event.kind)) {
log(`Skipping content copy check for allowed kind ${event.kind}`);
// Get kind-specific limits
const kindLimits = config.kindSpecificLimits[event.kind];
if (kindLimits && kindLimits.ignoreSimilarity) {
return false;
}
for (const recentEvent of recentEvents) {
if (recentEvent.pubkey !== event.pubkey) {
const similarity = calculateSimilarity(recentEvent.content, event.content);
if (similarity >= config.contentSimilarityThreshold) {
log(`Content copy detected: ${similarity.toFixed(2)} similarity between ${event.id} and ${recentEvent.id}`);
return true;
}
}
const checkResult = contentChecker.checkContent(event, recentEvents);
if (checkResult.isSpam) {
logWithReputation(event.pubkey, `Content spam detected for kind ${event.kind}: ${checkResult.reason}`);
return true;
}
return false;
}
function isBotBehavior(event) {
const isBotLike = event.content.endsWith(config.relayUrl);
if (isBotLike) {
log(`Bot behavior detected in event ${event.id}: content ends with relay URL`);
}
return isBotLike;
}
function isNewPubkeySpam(event) {
const isNewPubkey = !authorStats.has(event.pubkey);
if (isNewPubkey) {
@ -326,7 +391,7 @@ function isNewPubkeySpam(event) {
if (replyTo) {
const originalEvent = recentEvents.find(e => e.id === replyTo[1]);
if (originalEvent && event.created_at - originalEvent.created_at <= config.newPubkeyReplyThreshold) {
log(`New pubkey ${event.pubkey} replied too quickly to ${originalEvent.id}`);
logWithReputation(event.pubkey, `New pubkey replied too quickly to ${originalEvent.id}`);
return true;
}
}
@ -335,16 +400,21 @@ function isNewPubkeySpam(event) {
}
function isRapidNewPubkeyPosting(event) {
if (authorStats.has(event.pubkey)) {
// Skip rapid posting check for standardized kinds
if (contentChecker.standardizedContentKinds.has(event.kind)) {
return false;
}
if (authorStats.has(event.pubkey)) {
return false; // This is not a new pubkey
}
const now = Math.floor(Date.now() / 1000);
const count = newPubkeyPostCount.get(event.pubkey) || 0;
newPubkeyPostCount.set(event.pubkey, count + 1);
if (count >= config.newPubkeyMaxPostsIn5Min && now - event.created_at <= 300) {
log(`Rapid new pubkey posting detected for ${event.pubkey}: ${count} posts in 5 minutes`);
logWithReputation(event.pubkey, `Rapid new pubkey posting detected: ${count + 1} posts in 5 minutes`);
return true;
}
@ -355,91 +425,177 @@ function isRapidNewPubkeyPosting(event) {
return false;
}
function isBotBehavior(event) {
// Skip bot behavior check for standardized kinds
if (contentChecker.standardizedContentKinds.has(event.kind)) {
return false;
}
const isBotLike = event.content.endsWith(config.relayUrl);
if (isBotLike) {
logWithReputation(event.pubkey, `Bot behavior detected in event ${event.id}`);
}
return isBotLike;
}
function isSpam(event, recentEvents) {
const pubkey = event.pubkey;
log(`Checking event ${event.id} from pubkey ${pubkey} (kind: ${event.kind})`);
logWithReputation(pubkey, `Checking event ${event.id} (kind: ${event.kind})`);
if (config.bypassAllChecksKinds.includes(event.kind)) {
log(`Bypassing all checks for kind ${event.kind}`);
return { isSpam: false };
logWithReputation(pubkey, `Bypassing all checks for kind ${event.kind}`);
return false;
}
if (!canUserPost(pubkey, event.kind)) {
return {
isSpam: true,
reason: 'User reputation too low to post'
};
}
if (isRateLimitExceeded(pubkey, event.kind)) {
return { isSpam: true, reason: `Rate limit exceeded for kind ${event.kind}` };
return {
isSpam: true,
reason: `Rate limit exceeded for kind ${event.kind}`
};
}
// Special handling for follow lists (kind 3)
if (event.kind === 3) {
const checkResult = contentChecker.checkContent(event, recentEvents);
if (checkResult.isSpam) {
return {
isSpam: true,
reason: checkResult.reason
};
}
logWithReputation(pubkey, `Follow list check passed`);
return { isSpam: false };
}
if (isNewPubkeySpam(event)) {
return { isSpam: true, reason: 'New pubkey replying too quickly' };
return {
isSpam: true,
reason: 'New pubkey replying too quickly'
};
}
if (isRapidNewPubkeyPosting(event)) {
return { isSpam: true, reason: 'Rapid-fire posting from new pubkey' };
return {
isSpam: true,
reason: 'Rapid-fire posting from new pubkey'
};
}
if (isFastReply(event, recentEvents)) {
return { isSpam: true, reason: 'Fast reply to recent event' };
return {
isSpam: true,
reason: 'Fast reply to recent event'
};
}
if (isContentCopy(event, recentEvents)) {
return { isSpam: true, reason: 'Content copy detected' };
return {
isSpam: true,
reason: 'Content copy detected'
};
}
if (isBotBehavior(event)) {
return { isSpam: true, reason: 'Bot-like behavior detected' };
return {
isSpam: true,
reason: 'Bot-like behavior detected'
};
}
log(`Event ${event.id} passed all spam checks`);
logWithReputation(pubkey, `Event ${event.id} passed all spam checks`);
return { isSpam: false };
}
function periodicCleanup() {
const now = Date.now();
let cleanupCount = 0;
// Clean up old events
const oldEventCount = recentEvents.length;
while (recentEvents.length > 0 &&
(now - recentEvents[recentEvents.length - 1].created_at * 1000) > config.recentEventWindow * 1000) {
recentEvents.pop();
cleanupCount++;
}
// Clean up old author stats
let statsCleanupCount = 0;
for (const [pubkey, stats] of authorStats.entries()) {
if (now - stats.lastReply > config.statsRetentionPeriod * 1000) {
authorStats.delete(pubkey);
statsCleanupCount++;
}
}
// Clean up old reputation data
let reputationCleanupCount = 0;
for (const [pubkey, rep] of authorReputation.entries()) {
if (now - rep.lastUpdate > config.statsRetentionPeriod * 1000) {
authorReputation.delete(pubkey);
reputationCleanupCount++;
}
}
// Clean up newPubkeyPostCount
let newPubkeyCleanupCount = 0;
for (const [pubkey, timestamp] of newPubkeyPostCount.entries()) {
if (now - timestamp > 300000) { // 5 minutes
newPubkeyPostCount.delete(pubkey);
newPubkeyCleanupCount++;
}
}
// Clean up old violation history
let violationCleanupCount = 0;
for (const [pubkey, history] of userViolationHistory.entries()) {
if (history.length === 0 || now - history[history.length - 1].timestamp > config.statsRetentionPeriod * 1000) {
userViolationHistory.delete(pubkey);
violationCleanupCount++;
}
}
// Clean up last kind updates
let kindUpdateCleanupCount = 0;
for (const [key, timestamp] of lastKindUpdates.entries()) {
if (now - timestamp > config.statsRetentionPeriod * 1000) {
lastKindUpdates.delete(key);
kindUpdateCleanupCount++;
}
}
// Log cleanup summary if anything was cleaned
const totalCleanup = cleanupCount + statsCleanupCount + reputationCleanupCount +
newPubkeyCleanupCount + violationCleanupCount + kindUpdateCleanupCount;
if (totalCleanup > 0) {
log(`Cleanup summary:
Events: ${cleanupCount} (${recentEvents.length} remaining)
Author stats: ${statsCleanupCount} (${authorStats.size} remaining)
Reputation data: ${reputationCleanupCount} (${authorReputation.size} remaining)
New pubkey counts: ${newPubkeyCleanupCount} (${newPubkeyPostCount.size} remaining)
Violation histories: ${violationCleanupCount} (${userViolationHistory.size} remaining)
Kind updates: ${kindUpdateCleanupCount} (${lastKindUpdates.size} remaining)`);
}
}
// Set up periodic cleanup
setInterval(periodicCleanup, config.cleanupInterval * 1000);
// Set up stdin/stdout interface
const rl = require('readline').createInterface({
input: process.stdin,
output: process.stdout,
terminal: false
});
// Set up periodic cleanup
setInterval(periodicCleanup, config.cleanupInterval * 1000);
rl.on('line', (line) => {
let req;
try {
@ -456,37 +612,27 @@ rl.on('line', (line) => {
let res = { id: req.event.id };
// Check if user is allowed to post before any other processing
if (!canUserPost(req.event.pubkey, req.event.kind)) {
res.action = 'reject';
res.msg = 'rejected: reputation too low to post';
log(`Rejected event ${req.event.id} (kind: ${req.event.kind}): reputation too low`);
console.log(JSON.stringify(res));
return;
}
// Get initial reputation for comparison
const initialReputation = getAuthorReputation(req.event.pubkey).score;
// Update recent events
recentEvents.push(req.event);
recentEvents.sort((a, b) => b.created_at - a.created_at);
// Process event
// Update author stats
updateAuthorStats(req.event.pubkey, req.event.created_at, req.event.kind);
const spamCheck = isSpam(req.event, recentEvents);
const reputationScore = updateReputation(
req.event.pubkey,
spamCheck.isSpam,
req.event.kind,
spamCheck.reason
);
if (spamCheck.isSpam) {
res.action = 'reject';
res.msg = `rejected: ${spamCheck.reason}`;
log(`Rejected event ${req.event.id} (kind: ${req.event.kind}): ${res.msg} (reputation: ${reputationScore.toFixed(2)})`);
const finalReputation = updateReputation(req.event.pubkey, true, req.event.kind, spamCheck.reason);
log(`Rejected event ${req.event.id}: ${res.msg} (reputation: ${initialReputation.toFixed(2)} -> ${finalReputation.toFixed(2)})`);
} else {
res.action = 'accept';
log(`Accepted event ${req.event.id} (kind: ${req.event.kind}, reputation: ${reputationScore.toFixed(2)})`);
const finalReputation = updateReputation(req.event.pubkey, false, req.event.kind, null);
log(`Accepted event ${req.event.id} (reputation: ${initialReputation.toFixed(2)} -> ${finalReputation.toFixed(2)})`);
}
console.log(JSON.stringify(res));