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v3.0.0 - Mental Health Day, Oct 10th, 2025

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@DanielSnor DanielSnor released this 10 Oct 06:07
· 75 commits to main since this release
v3.0.0
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🎉 Major Release: Advanced Filtering & Performance Optimization

We're excited to announce version 3.0.0 of the IFTTT Webhook Filter, featuring a complete overhaul of the filtering system, significant performance improvements, and enhanced content processing capabilities.

⚠️ Breaking Changes

This is a major version with several breaking changes to configuration settings. Please review your configuration before upgrading.

Renamed Configuration Properties

Old Name (v2.0.2) New Name (v3.0.0)
AMPERSAND_REPLACEMENT AMPERSAND_SAFE_CHAR
BANNED_COMMERCIAL_PHRASES PHRASES_BANNED
MANDATORY_KEYWORDS PHRASES_REQUIRED
QUOTE_SENTENCE PREFIX_QUOTE
REPOST_SENTENCE PREFIX_REPOST
STATUS_IMAGEURL_SENTENCE PREFIX_IMAGE_URL
STATUS_URL_SENTENCE PREFIX_POST_URL
POST_SOURCE URL_REPLACE_FROM
POST_TARGET URL_REPLACE_TO
CONTENT_HACK_PATTERNS CONTENT_REPLACEMENTS
USER_INSTANCE MENTION_FORMATTING
EXCLUDED_URLS URL_NO_TRIM_DOMAINS
SHOW_FEEDURL_INSTD_POSTURL FORCE_SHOW_FEEDURL
SHOW_ORIGIN_POSTURL_PERM FORCE_SHOW_ORIGIN_POSTURL
SHOULD_PREFER_REAL_NAME SHOW_REAL_NAME
RSS_INPUT_LIMIT RSS_MAX_INPUT_CHARS
*Now supports advanced FilterRule system (see below)

Removed Configuration

  • RSS_INPUT_TRUNCATION_STRATEGY - Replaced with automatic intelligent truncation logic

✨ New Features

🎯 Advanced Filtering System (FilterRule)

The filtering system has been completely rewritten to support complex logical operations:

// Simple literal matching (backward compatible)
PHRASES_BANNED: ["advertisement", "spam"]

// Regex pattern matching
PHRASES_BANNED: [
  { type: "regex", pattern: "\\bsale\\b", flags: "i" }
]

// AND logic (all keywords must be present)
PHRASES_REQUIRED: [
  { type: "and", keywords: ["tech", "innovation", "2025"] }
]

// OR logic (any keyword matches)
PHRASES_REQUIRED: [
  { type: "or", keywords: ["news", "update", "announcement"] }
]

Key improvements:

  • Literal string matching (case-insensitive)
  • Regex pattern support with configurable flags
  • AND/OR logical combinations
  • Unified system for both banned content and required keywords

🧠 Smart Trim Strategy

New intelligent content trimming that balances length limits with readability:

POST_LENGTH_TRIM_STRATEGY: "smart"  // New option!
SMART_TOLERANCE_PERCENT: 12  // 5-25, recommended 12

How it works:

  • Attempts to preserve complete sentences
  • Falls back to word boundaries if sentence preservation wastes too much space
  • Configurable tolerance (percentage of POST_LENGTH that can be "wasted")
  • Example: With 444 char limit and 12% tolerance, accepts sentences up to 391 chars

Strategies available:

  • "sentence" - Always preserve last complete sentence
  • "word" - Cut at word boundary
  • "smart" - Hybrid approach with tolerance (recommended)

📰 RSS Input Pre-Truncation

New early truncation for RSS feeds before HTML processing:

RSS_MAX_INPUT_CHARS: 1000  // Limit before processing (0 = no limit)

Benefits:

  • Prevents processing of excessive HTML in long RSS entries
  • Proper ellipsis handling for pre-truncated content
  • Improves performance for lengthy feeds

🔗 Self-Reference Formatting

Better handling of self-quotes and self-reposts:

PREFIX_SELF_REFERENCE: "vlastní post"  // or "own post", "my post", etc.

Instead of showing "@username quotes @username", the filter now displays:

  • "John Doe 📝💬 vlastní post: [content]"
  • "John Doe 📤 vlastní post: [content]"

🎯 Quote Tweet URL Priority

Fixed URL selection for quote tweets:

  • Quote tweets now correctly use entryUrl (your own tweet)
  • Instead of imageUrl (the quoted tweet)
  • Prevents confusion about which tweet is being shared

🚀 Performance Improvements

Unified Cache System

  • Before: Separate caches (10 regex, 390 escaped strings)
  • After: Unified cache with 500 items and FIFO eviction
  • Simplified memory management
  • Better cache hit rates

Lazy Character Map Processing

  • Character entities only processed when detected in content
  • Reduces unnecessary operations on clean text
  • Single-pass token replacement

Optimized HTML Cleanup

  • Single regex pass for all HTML tag removal
  • Combined line break handling
  • Reduced string operations

Early Exit Optimizations

  • Filter functions exit immediately when conditions not met
  • No processing when filter arrays are empty
  • Reduced redundant checks in shouldSkip()

Estimated Performance Gain: 30-50% faster processing for typical posts

🐛 Bug Fixes

Fixed Self-Quote/Self-Repost Detection

  • Now correctly uses authorUsername for comparison
  • Properly handles SHOW_REAL_NAME setting
  • Prevents false negatives when real names are displayed

Improved Quote Detection

  • Removed overly restrictive self-quote exclusion
  • isQuote() now returns true for all valid quotes
  • Self-quotes properly formatted with PREFIX_SELF_REFERENCE

Better URL Processing for Quotes

  • Quote tweets correctly prioritize entry URL over image URL
  • Fixed URL selection logic in processStatus()

📝 New Configuration Options

interface AppSettings {
  // New
  PHRASES_BANNED: (string | FilterRule)[];
  PHRASES_REQUIRED: (string | FilterRule)[];
  SMART_TOLERANCE_PERCENT: number;
  PREFIX_SELF_REFERENCE: string;
  
  // Renamed (see Breaking Changes section)
  AMPERSAND_SAFE_CHAR: string;
  URL_REPLACE_FROM: string;
  URL_REPLACE_TO: string;
  // ... and more
}

🔧 Technical Improvements

Type Safety

  • New type definitions: FilterRule, ProcessedContent, ProcessedStatus, TrimResult, TruncateRssResult
  • Better type checking with helper functions: isValidString(), safeString()
  • Improved error handling

Code Organization

  • Character map extracted to CHAR_MAP constant
  • Regex patterns organized in REGEX_PATTERNS object
  • Platform configs in platformConfigs object
  • Centralized helper functions: getPlatformConfig(), getCached()

Domain Fix Initialization

  • URL_DOMAIN_FIXES processing moved to initialization (runs once)
  • Automatic insertion into CONTENT_REPLACEMENTS
  • Improved startup performance

📚 Documentation Improvements

  • Comprehensive inline documentation
  • Detailed function descriptions
  • Type annotations throughout
  • Better variable naming for clarity

🔄 Migration Guide

Step 1: Update Configuration Property Names

Rename properties according to the Breaking Changes table above.

Step 2: Convert Simple Arrays to FilterRule (Optional)

// Old format still works
PHRASES_BANNED: ["spam", "ad"]

// But you can now use advanced features
PHRASES_BANNED: [
  "spam",  // Simple string still supported
  { type: "regex", pattern: "\\bad\\b", flags: "i" },
  { type: "and", keywords: ["buy", "now"] }
]

Step 3: Review Trim Strategy

Consider using the new "smart" strategy:

POST_LENGTH_TRIM_STRATEGY: "smart"
SMART_TOLERANCE_PERCENT: 12

Step 4: Add Self-Reference Text

PREFIX_SELF_REFERENCE: "own post"  // or your preferred text

Step 5: Test Thoroughly

  • Verify filtering rules work as expected
  • Check quote and repost formatting
  • Ensure URL handling is correct

📊 Statistics

  • Lines of code: ~2,800 (organized and optimized)
  • Functions: 50+ helper functions
  • Performance: 30-50% faster than v2.0.2
  • Cache capacity: 500 items (5x improvement)
  • TypeScript compatibility: 2.9.2+

🙏 Acknowledgments

Special thanks to all users who provided feedback and reported issues that led to these improvements.

📦 Installation

Simply replace your existing filter code with v3.0.0 and update your configuration according to the migration guide above.

🐛 Known Issues

None at release. Please report any issues on our GitHub repository.

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