diff --git a/.env.example b/.env.example index 164eda12..2c148b6a 100644 --- a/.env.example +++ b/.env.example @@ -1,23 +1,17 @@ -# .env.example +# Upstash Redis (for caching) +# Get these from https://console.upstash.com +UPSTASH_REDIS_REST_URL= +UPSTASH_REDIS_REST_TOKEN= -# OpenAI API Key -# Replace with your actual OpenAI API key -OPENAI_API_KEY='' +# OpenAI (for summaries) +OPENAI_API_KEY= -# Key-Value Store (Redis) Configuration -# Replace with your actual Redis connection string -KV_URL='' +# Base URL +NEXT_PUBLIC_URL=https://your-domain.com -# Key-Value Store (Redis) REST API Configuration -# Replace with your actual REST API URL for Redis -KV_REST_API_URL='' -# Replace with your actual REST API token for Redis -KV_REST_API_TOKEN='' -# Replace with your actual read-only REST API token for Redis -KV_REST_API_READ_ONLY_TOKEN='' +# Logo.dev (for company logos - get your publishable key from dashboard) +NEXT_PUBLIC_LOGODEV_TOKEN= -# Resend API Key -# Replace with your actual Resend API key -RESEND_API_KEY='' -# The email you want to recieve feedback to -EMAIL_TO_ADDRESS='' +# Optional but recommended: +# Diffbot (required for direct and wayback sources) +DIFFBOT_API_KEY= diff --git a/.env.production b/.env.production deleted file mode 100644 index 7ea75237..00000000 --- a/.env.production +++ /dev/null @@ -1 +0,0 @@ -NEXT_PUBLIC_URL=https://smry.ai \ No newline at end of file diff --git a/.eslintrc.json b/.eslintrc.json deleted file mode 100644 index bffb357a..00000000 --- a/.eslintrc.json +++ /dev/null @@ -1,3 +0,0 @@ -{ - "extends": "next/core-web-vitals" -} diff --git a/README.md b/README.md index 41b7728f..752271a6 100644 --- a/README.md +++ b/README.md @@ -1,65 +1,394 @@ -# SMRY.ai +# 13ft / SMRY.ai -**SMRY.ai**: Revolutionizing article reading and paywall bypass with the power of AI. This tool generates summaries and gets past hard to avoid paywalls by using archive.org, googlebot, and (soon) archive.is, harnessing the advanced capabilities of OpenAI's ChatGPT API and the Vercel AI SDK. Experience seamless streaming and real-time responses with our edge computing approach. +A Next.js application that bypasses paywalls and generates AI-powered summaries by fetching content from multiple sources simultaneously. -## How it Works -SMRY.ai integrates the [ChatGPT API](https://openai.com/api/) with the [Vercel AI SDK](https://sdk.vercel.ai/docs) to offer a streamlined, efficient summary generation process. By utilizing edge streaming, we ensure fast, responsive interactions. For insights into similar technologies, explore [RSC With Streaming](https://rsc-llm-on-the-edge.vercel.app/). +## What This Does -## Running Locally -To run SMRY.ai in your local environment: +1. **Paywall Bypass**: Fetches article content from three sources in parallel: + - **Direct**: Uses Diffbot API for intelligent article extraction from original URLs (server-side) + - **Wayback Machine**: Uses Diffbot API to extract clean content from archived pages (server-side) + - **Jina.ai**: Fetches and parses markdown directly in the browser (client-side) + +2. **AI Summaries**: Generates concise summaries in 8 languages using OpenAI's gpt-5-nano -1. **Clone the Repository:** Start by cloning the repo to your local machine. -2. **Set Up Environment Variables:** - - Navigate to [OpenAI](https://beta.openai.com/account/api-keys) to obtain your API key. - - Create a `.env` file in your project root based on the `.env.example` provided. - - Ensure you have valid Vercel/Upstash KV keys. Optionally, acquire Resend Labs keys from [Resend](https://resend.com). -3. **Installation:** - - Run `pnpm install` to install the necessary dependencies. -4. **Starting the Application:** - - Execute `pnpm run dev` to start the application. - - Access the application at `http://localhost:3000`. +3. **Smart Extraction**: Uses Diffbot's AI-powered extraction for direct and archived content, with client-side markdown parsing for Jina.ai to reduce server load -## Requirements -- [PNPM](https://pnpm.io/) package manager +## Architecture Highlights + +### Multi-Source Parallel Fetching +Uses TanStack Query to fetch from all sources simultaneously, displaying whichever responds first. Each source is independently cached. + +**Server-side sources (Direct, Wayback):** +```typescript +// These hit the /api/article endpoint +const serverQueries = useQueries({ + queries: SERVER_SOURCES.map((source) => ({ + queryKey: ["article", source, url], + queryFn: () => articleAPI.getArticle(url, source), + })) +}); +``` + +**Client-side source (Jina.ai):** +```typescript +// Jina is fetched directly in the browser, reducing server load +const jinaQuery = useQuery({ + queryKey: ["article", "jina.ai", url], + queryFn: async () => { + // 1. Check cache via GET /api/jina + // 2. If miss, fetch from r.jina.ai client-side + // 3. Parse markdown in browser + // 4. Update cache via POST /api/jina + } +}); +``` + +### Type-Safe Error Handling +Uses `neverthrow`'s Result types for error handling instead of try-catch, making errors type-safe: + +```typescript +// Returns Result instead of throwing +export function fetchArticleWithDiffbot(url: string, source: string): ResultAsync +``` + +Nine distinct error types (NetworkError, RateLimitError, TimeoutError, etc.) with user-friendly messages. + +**Enhanced Error Context:** +All errors now include debug context showing: +- What extraction methods were attempted +- Why each method failed or succeeded +- Content length at each step +- Complete extraction timeline + +This makes debugging extraction failures much easier. + +### Dual Caching Strategy +- **Server-side**: Upstash Redis for persistent caching across requests +- **Client-side**: TanStack Query for instant UI updates (1min stale time, 5min GC) + +Articles are cached by `source:url` key. When fetching, if a longer version exists in cache, it's preserved. + +### Intelligent Source Routing +Different sources require different extraction strategies: + +**Direct & Wayback** → Diffbot API with Multi-Layer Fallbacks +```typescript +// Diffbot extracts structured article data with fallback chain: +// 1. Diffbot API extraction +// 2. Mozilla Readability on returned DOM +// 3. Multiple Diffbot fields (html, text, media) +// 4. Wayback-specific original URL extraction +const diffbotResult = await fetchArticleWithDiffbot(urlWithSource, source); +``` + +**Jina.ai** → Markdown Parsing +```typescript +// Jina returns markdown, so we parse it directly +const markdown = await fetch(jinaUrl).then(r => r.text()); +const html = converter.makeHtml(markdown); +``` + +This multi-layered approach maximizes content extraction success across diverse article formats and site structures. + +### Content Parsing Pipeline + +**For Direct & Wayback (via Diffbot):** +1. Send URL to Diffbot API +2. Receive structured article data (title, HTML, text, siteName) +3. **Fallback chain if extraction incomplete:** + - Try Mozilla Readability on Diffbot's returned DOM + - For Wayback: Try extracting original URL and re-parsing + - Attempt multiple Diffbot article fields +4. Track extraction steps in debug context +5. Cache the parsed result + +**For Jina.ai (Markdown):** +1. Fetch markdown from Jina.ai reader +2. Extract title, URL source, and content +3. Convert markdown to HTML using Showdown +4. Cache the parsed result + +### Debug Context & Error Tracking +Each article fetch now includes detailed debug context that tracks: +- All extraction attempts and their outcomes +- Fallback strategies that were tried +- Content length at each step +- Timestamps for performance analysis +- Error details for troubleshooting + +Debug context is preserved through errors and displayed in the UI for debugging. + +### Multilingual Summaries +Language-specific prompts for 14 languages (en, es, fr, de, zh, ja, pt, ru, hi, it, ko, ar, nl, tr). Each language gets its own cache key: + +``` +summary:en:https://example.com +summary:es:https://example.com +``` + +Rate limited to 20 summaries per IP per day, 6 per minute. + +## Tech Stack + +- **Next.js 16** (App Router) with React Server Components +- **TanStack Query** for client-side data fetching and caching +- **Zod** for runtime type validation +- **neverthrow** for Result-based error handling +- **Upstash Redis** for caching +- **OpenAI gpt-5-nano** for summaries +- **Diffbot API** for AI-powered article extraction (direct & wayback sources) +- **Mozilla Readability** for fallback content extraction +- **Showdown** for markdown to HTML conversion (Jina.ai source) +- **Logo.dev API** for company logos (client-side) +- **Radix UI** + **Tailwind CSS** for UI + +## Key Files + +``` +app/ +├── api/ +│ ├── article/route.ts # Fetches & parses articles from sources +│ └── summary/route.ts # Generates AI summaries with rate limiting +├── proxy/page.tsx # Main article display page +└── page.tsx # Landing page + +lib/ +├── api/ +│ ├── diffbot.ts # Diffbot API with multi-layer fallback extraction +│ ├── jina.ts # Jina.ai markdown fetching +│ └── client.ts # Type-safe API client +├── errors/ +│ ├── types.ts # Type-safe error definitions (9 types) +│ ├── safe-error.ts # Safe error utilities +│ └── index.ts # Barrel export +├── logger.ts # Pino structured logging +└── hooks/ + └── use-articles.ts # TanStack Query hook for parallel fetching + +components/ +├── arrow-tabs.tsx # Tab interface for switching sources +├── article-content.tsx # Renders parsed article with summary form +├── summary-form.tsx # AI summary generation UI +└── proxy-content.tsx # Main content wrapper + +types/ +└── api.ts # Zod schemas for all API requests/responses +``` + +## How It Works + +### Request Flow +``` +User enters URL + ↓ +ProxyContent component + ↓ +useArticles() hook - fires 3 parallel requests + ↓ +API route /api/article?url=...&source=... + ↓ +Route to appropriate fetcher: + - Direct/Wayback → fetchArticleWithDiffbot() with multi-layer fallback + - Jina.ai → fetchJinaArticle() (markdown parsing) + ↓ +Cache in Upstash Redis (if longer than existing) + ↓ +Return to client + ↓ +Display first successful response +``` + +### Summary Flow +``` +User clicks "Generate Summary" + ↓ +POST /api/summary with content + language + ↓ +Check cache by language:url key + ↓ +If miss: OpenAI gpt-5-nano with language-specific prompt + ↓ +Cache result + ↓ +Return summary +``` + +## Environment Variables + +Required: +```bash +# Upstash Redis (for caching) +# Get these from https://console.upstash.com +UPSTASH_REDIS_REST_URL= +UPSTASH_REDIS_REST_TOKEN= + +# OpenAI (for summaries) +OPENAI_API_KEY= + +# Base URL +NEXT_PUBLIC_URL=https://your-domain.com + +# Logo.dev (for company logos - get your publishable key from dashboard) +NEXT_PUBLIC_LOGODEV_TOKEN= +``` + +Optional (but recommended): +```bash +# Diffbot (required for direct and wayback sources) +DIFFBOT_API_KEY= + +## Setup + +1. **Install dependencies**: +```bash +pnpm install +``` + +2. **Set up environment variables**: + - Create an Upstash Redis database at https://console.upstash.com + - Get an OpenAI API key at platform.openai.com + - Get your Logo.dev publishable key (pk_) from https://www.logo.dev/dashboard + - Copy `.env.example` to `.env.local` and fill in values + +3. **Run development server**: +```bash +pnpm dev +``` + +4. **Build for production**: +```bash +pnpm build +pnpm start +``` + +## Usage + +### Basic URL +``` +https://your-domain.com/proxy?url=https://example.com/article +``` + +### Bookmarklet +Create a browser bookmark with this URL: +```javascript +javascript:(function(){window.location='https://your-domain.com/'+window.location.href})() +``` + +### Direct prepend +``` +https://your-domain.com/https://example.com/article +``` + +## Interesting Implementation Details + +### Multi-Layer Content Extraction +The Diffbot integration uses a sophisticated fallback chain to maximize extraction success: + +1. **Primary: Diffbot API** - AI-powered article extraction +2. **Fallback 1: Mozilla Readability** - Applied to Diffbot's returned DOM for complex layouts +3. **Fallback 2: Multiple Diffbot fields** - Tries html, text, and media fields +4. **Fallback 3: Wayback re-extraction** - For archived pages, extracts original URL and re-parses + +Each step is tracked in debug context, making it easy to understand what worked and what didn't. This approach handles challenging cases like: +- Google Blogger sites with complex DOM structures +- Paywalled content with dynamic loading +- Archive.org pages with wrapped content +- Sites with heavy JavaScript rendering + +### Why Three Sources? +- **Direct + Diffbot**: AI-powered extraction bypasses most paywalls and anti-bot measures +- **Wayback + Diffbot**: Extracts clean content from archived pages, removing archive.org UI clutter +- **Jina.ai**: Returns pre-parsed markdown format, works when Diffbot is unavailable + +By fetching all three in parallel and displaying any that succeed, the app maximizes success rate. + +### Why Diffbot for Direct & Wayback? +Diffbot's API is specifically trained to extract article content from HTML, removing navigation, ads, and other clutter. This works excellently for: +- Direct URLs: Bypasses many paywall implementations +- Wayback archives: Removes archive.org's UI wrapper and metadata + +**Fallback Strategy:** +If Diffbot's extraction is incomplete, the system automatically tries: +1. **Mozilla Readability** on the returned DOM for better extraction +2. **Multiple Diffbot fields** (html, text, media) to find the best content +3. **Wayback-specific logic** to extract and re-parse original URLs + +This multi-layered approach maximizes content extraction success, especially for complex sites like Google Blogger or pages with dynamic layouts. + +Jina.ai is handled separately because it returns markdown (not HTML), so we parse it directly without Diffbot. + +### Caching Strategy +Articles are cached with the article itself as the value, not just metadata. When a new fetch completes, it compares text length to the cached version and keeps the longer one. This prevents losing content if a source returns a partial article. + +### Type Safety +All API routes validate inputs with Zod schemas at runtime. This catches invalid data before it reaches application logic. The schemas are shared between client and server, ensuring consistency. + +### Error Resilience +Using neverthrow's Result types instead of exceptions means errors are handled explicitly. Each error type has a user-friendly message, so users get helpful feedback instead of generic errors. + +### Structured Logging +Uses **Pino** for production-ready logging: +- **Development**: Pretty-printed, colorized output for easy debugging +- **Production**: Structured JSON logs for parsing and monitoring +- **Contextual**: Each module has its own logger context (e.g., `api:article`, `lib:fetch`) +- **Levels**: debug, info, warn, error with appropriate defaults + +See [LOGGING.md](./LOGGING.md) for detailed documentation and integration with log aggregation services like Axiom, Logtail, or Datadog. ## Contributing -Contributions are VERY welcome! -## License -This project is licensed under the MIT License - see the LICENSE file for details. +**Contributions are very welcome!** Areas where help is especially appreciated: -## Contact -For support or queries, reach out to me at [contact@smry.ai]. +### High Priority +- [ ] Support for more content sources (Archive.is, Google Cache, etc.) +- [ ] Improve paywall bypass for specific sites (NYT, WSJ, etc.) +- [ ] Browser extension for easier access +- [ ] PDF export functionality +- [ ] Better mobile UI/UX -## Acknowledgements -Special thanks to any contributors who make the ui nicer or the paywall bypass more robust. Really curious if we can make the best such open source tool! +### Technical Improvements +- [ ] Streaming AI summaries for real-time generation +- [ ] Webhook support for asynchronous processing +- [ ] Support for video/podcast content +- [ ] OCR for image-based paywalls +- [x] Upstash Redis for caching (self-hosted compatible) ---- +### UI/UX Enhancements +- [ ] Dark mode +- [ ] Reading time estimate +- [ ] Text-to-speech integration +- [ ] Customizable fonts and layouts +- [ ] Save/bookmark functionality + +### Testing +- [ ] Unit tests for core functions +- [ ] Integration tests for API routes +- [ ] E2E tests for critical paths + +**How to contribute:** +1. Fork the repository +2. Create a feature branch +3. Make your changes with clear commit messages +4. Add tests if applicable +5. Submit a pull request -### MIT License Section for README +For major changes, open an issue first to discuss the approach. -```markdown ## License -MIT License +MIT License - see LICENSE file for details -Copyright (c) 2023 SMRY +## Related Projects -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: +- [12ft.io](https://12ft.io) - Original inspiration +- [archive.is](https://archive.is) - Archive service +- [Jina.ai Reader](https://jina.ai/reader) - Clean article extraction +- [Diffbot](https://diffbot.com) - Article extraction API -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. +## Contact -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. -``` +Issues and feature requests: [GitHub Issues](https://github.com/mrmps/SMRY/issues) + +--- + +Built with Next.js 16, TanStack Query, and OpenAI. diff --git a/VALIDATION_FLOW.md b/VALIDATION_FLOW.md new file mode 100644 index 00000000..676a1641 --- /dev/null +++ b/VALIDATION_FLOW.md @@ -0,0 +1,129 @@ +# Validation Flow Diagram + +``` +┌─────────────────────────────────────────────────────────────────┐ +│ API Request to /api/article │ +└────────────────────────────┬────────────────────────────────────┘ + │ + ▼ + ┌──────────────────────┐ + │ Validate Request │ + │ (ArticleRequestSchema)│ + └──────────┬───────────┘ + │ + ▼ + ┌──────────────────────┐ + │ Check Cache (KV) │ + └──────────┬───────────┘ + │ + ┌──────────────┴──────────────┐ + │ │ + ▼ Cache Hit ▼ Cache Miss + ┌──────────────────────┐ ┌──────────────────────┐ + │ Validate Cached Data │ │ Fetch from Diffbot │ + │ (CachedArticleSchema)│ └──────────┬───────────┘ + └──────────┬───────────┘ │ + │ ▼ + │ ┌──────────────────────────────┐ + │ │ lib/api/diffbot.ts │ + │ │ ┌────────────────────────┐ │ + │ │ │ 1. Validate HTTP │ │ + │ │ │ Response Structure │ │ + │ │ │ (DiffbotArticle │ │ + │ │ │ ResponseSchema) │ │ + │ │ └──────────┬─────────────┘ │ + │ │ │ │ + │ │ ▼ │ + │ │ ┌────────────────────────┐ │ + │ │ │ 2. Try Diffbot Extract│ │ + │ │ │ - New Format │ │ + │ │ │ - Old Format │ │ + │ │ │ Validate each with │ │ + │ │ │ DiffbotArticle │ │ + │ │ │ Schema │ │ + │ │ └──────────┬─────────────┘ │ + │ │ │ │ + │ │ ┌──────────┴─────────────┐ │ + │ │ │ Success? │ Failed? │ │ + │ │ └──────┬───┴───┬─────────┘ │ + │ │ │ │ │ + │ │ │ ▼ │ + │ │ │ ┌─────────────┐ │ + │ │ │ │ 3. Fallback │ │ + │ │ │ │ Readability│ │ + │ │ │ │ Extract │ │ + │ │ │ │ Validate: │ │ + │ │ │ │ - Readability│ + │ │ │ │ Article │ │ + │ │ │ │ Schema │ │ + │ │ │ │ - Final │ │ + │ │ │ │ Diffbot │ │ + │ │ │ │ Article │ │ + │ │ │ │ Schema │ │ + │ │ │ └──────┬──────┘ │ + │ │ │ │ │ + │ └──────────┴──────────┴────────┘ + │ │ + │ ▼ + │ ┌──────────────────────┐ + │ │ Validate Diffbot │ + │ │ Response │ + │ │ (DiffbotArticleSchema)│ + │ └──────────┬───────────┘ + │ │ + └─────────────────────────┘ + │ + ▼ + ┌──────────────────────┐ + │ Save to Cache │ + │ - Validate incoming │ + │ - Validate existing │ + │ - Validate saved │ + │ (CachedArticleSchema)│ + └──────────┬───────────┘ + │ + ▼ + ┌──────────────────────┐ + │ Validate Final │ + │ Response │ + │ (ArticleResponseSchema)│ + └──────────┬───────────┘ + │ + ▼ + ┌──────────────────────┐ + │ Return to Client │ + └──────────────────────┘ + +LEGEND: + Every box with "Validate" = Zod schema validation with safeParse() + All validation failures are logged with detailed context + Failed validations trigger fallbacks or return errors +``` + +## Validation Coverage Summary + +### 🔒 **13 Validation Points Total** + +#### In `lib/api/diffbot.ts` (7 points) +1. ✅ Raw Diffbot API response structure +2. ✅ Diffbot article extraction (new format) +3. ✅ Diffbot article extraction (old format) +4. ✅ Readability targeted container result +5. ✅ Readability full document result +6. ✅ Final Readability result before resolve +7. ✅ All article objects before returning + +#### In `app/api/article/route.ts` (6 points) +1. ✅ Diffbot function response +2. ✅ Cached article on read +3. ✅ Incoming article before cache save +4. ✅ Existing cached article +5. ✅ Saved article after cache operation +6. ✅ Article in error handler + +### 🛡️ **100% Coverage** +Every data transformation point is validated +Every external API response is validated +Every cache read/write is validated +Every return path is validated + diff --git a/VALIDATION_SUMMARY.md b/VALIDATION_SUMMARY.md new file mode 100644 index 00000000..2e5465b4 --- /dev/null +++ b/VALIDATION_SUMMARY.md @@ -0,0 +1,245 @@ +# Comprehensive Zod Validation Implementation + +## Overview +Added comprehensive Zod validation to both `lib/api/diffbot.ts` and `app/api/article/route.ts` to ensure type safety and data integrity throughout the article extraction and caching pipeline. + +--- + +## `lib/api/diffbot.ts` - Validation Points + +### 1. Zod Schemas Defined + +#### `DiffbotStatsSchema` +- Validates Diffbot API stats object (fetchTime, confidence) +- All fields optional + +#### `DiffbotArticleObjectSchema` +- Validates individual article objects in Diffbot response +- Fields: title, text, html, dom, author, date, url, siteName, etc. +- Uses `.passthrough()` to allow additional fields from API + +#### `DiffbotRequestSchema` +- Validates Diffbot API request metadata +- Required: pageUrl, api, version +- Optional: options array + +#### `DiffbotArticleResponseSchema` +- Validates complete Diffbot API response structure +- Supports both old format (direct properties) and new format (objects array) +- Includes error response fields (errorCode, error) +- Uses `.passthrough()` for forward compatibility + +#### `DiffbotArticleSchema` +- **CRITICAL SCHEMA** - Validates final article output +- Required fields with minimum lengths: + - title: min 1 character + - html: min 1 character + - text: min 100 characters + - siteName: min 1 character + +#### `ReadabilityArticleSchema` +- Validates Mozilla Readability parser output +- Required: title, content, textContent +- Optional: siteName + +### 2. Validation Implementations + +#### Diffbot API Response Validation (Line ~347) +```typescript +const rawData = await response.json(); +const responseValidation = DiffbotArticleResponseSchema.safeParse(rawData); +``` +- Validates structure before processing +- Logs validation errors with received keys +- Rejects promise if validation fails + +#### Diffbot Article Extraction - New Format (Line ~423) +```typescript +const articleValidation = DiffbotArticleSchema.safeParse(completeArticle); +``` +- Validates extracted article from objects[0] +- Falls through to Readability if validation fails +- Detailed logging of field lengths + +#### Diffbot Article Extraction - Old Format (Line ~485) +```typescript +const articleValidation = DiffbotArticleSchema.safeParse(articleData); +``` +- Validates extracted article from direct properties +- Falls through to DOM fallback if validation fails + +#### Readability Targeted Container Extraction (Line ~186) +```typescript +const validationResult = ReadabilityArticleSchema.safeParse(article); +``` +- Validates Readability output for targeted selectors +- Continues to next selector if validation fails +- Final `DiffbotArticleSchema` validation before returning (Line ~221) + +#### Readability Full Document Extraction (Line ~216) +```typescript +const validationResult = ReadabilityArticleSchema.safeParse(article); +``` +- Validates Readability output for full document +- Returns null if validation fails +- Final `DiffbotArticleSchema` validation before returning (Line ~252) + +#### Readability Fallback in Main Function (Line ~537) +```typescript +const readabilityValidation = DiffbotArticleSchema.safeParse(readabilityResult); +``` +- Final validation check before resolving with Readability result +- Logs validation errors with field lengths + +--- + +## `app/api/article/route.ts` - Validation Points + +### 1. Zod Schemas Defined + +#### `DiffbotArticleSchema` +- Validates Diffbot API response from `fetchArticleWithDiffbot()` +- Required fields with minimum lengths: + - title: min 1 character (cannot be empty) + - html: min 1 character (cannot be empty) + - text: min 1 character (cannot be empty) + - siteName: min 1 character (cannot be empty) + +#### `CachedArticleSchema` +- Validates articles stored in/retrieved from cache +- Required: title, content, textContent, siteName +- length: must be positive integer + +### 2. Validation Implementations + +#### Diffbot Response Validation (Line ~96) +```typescript +const validationResult = DiffbotArticleSchema.safeParse(diffbotArticle); +``` +- Validates response from `fetchArticleWithDiffbot()` +- Logs detailed error with field presence checks and lengths +- Returns parse error if validation fails +- Only proceeds with validated data + +#### Cache Read Validation (Line ~205) +```typescript +const cacheValidation = CachedArticleSchema.safeParse(cachedArticleJson); +``` +- Validates data retrieved from KV cache +- Logs validation errors with received type and keys +- Falls through to fetch fresh data if validation fails +- Validates final response structure with `ArticleResponseSchema.parse()` + +#### Cache Save - Incoming Article Validation (Line ~53) +```typescript +const incomingValidation = CachedArticleSchema.safeParse(newArticle); +``` +- Validates article before saving to cache +- Throws error if validation fails +- Logs detailed info about what fields are present + +#### Cache Save - Existing Article Validation (Line ~75) +```typescript +const existingValidation = CachedArticleSchema.safeParse(existingArticleString); +``` +- Validates existing cached article +- Replaces with new article if existing is invalid +- Compares lengths if both are valid + +#### Cache Save - Saved Article Validation (Line ~292) +```typescript +const savedValidation = CachedArticleSchema.safeParse(savedArticle); +``` +- Validates article returned from `saveOrReturnLongerArticle()` +- Falls back to original article if validation fails +- Ensures response structure is valid with `ArticleResponseSchema.parse()` + +#### Cache Save Error Handler Validation (Line ~349) +```typescript +const articleValidation = CachedArticleSchema.safeParse(article); +``` +- Validates article in error handler before returning +- Returns validation error to client if article is invalid +- Prevents returning invalid data even in error scenarios + +--- + +## Benefits + +### 1. **Runtime Type Safety** +- All data validated at runtime, not just compile time +- Catches malformed API responses before they cause issues +- Prevents invalid data from entering the system + +### 2. **Detailed Error Logging** +- Every validation failure logged with context +- Field presence checks help diagnose missing data +- Content lengths help identify empty fields + +### 3. **Graceful Degradation** +- Validation failures trigger fallback mechanisms +- Readability used if Diffbot data invalid +- Cache invalidation if stored data corrupt + +### 4. **Data Integrity** +- Cache operations validated on read and write +- Prevents storing/retrieving corrupt data +- Ensures minimum content quality (100+ chars) + +### 5. **Forward Compatibility** +- `.passthrough()` on API schemas allows new fields +- Won't break if Diffbot adds new properties +- Strict validation on critical fields only + +### 6. **Debug Context** +- All validation errors include debug steps +- Full trace of what was attempted and why it failed +- Easy to diagnose issues in production + +--- + +## Testing Recommendations + +1. **Test with malformed Diffbot responses** + - Missing required fields + - Empty strings + - Unexpected data types + +2. **Test cache corruption scenarios** + - Invalid JSON in cache + - Missing fields + - Wrong data types + +3. **Test validation errors propagate correctly** + - Check error responses to client + - Verify debug context included + - Ensure fallbacks triggered + +4. **Test edge cases** + - Articles with exactly 100 characters + - Empty title/html fields + - Missing siteName + +--- + +## Files Modified + +1. `/Users/michaelryaboy/projects/13ft/lib/api/diffbot.ts` + - Added 6 Zod schemas + - Added 7 validation points + - All return paths validated + +2. `/Users/michaelryaboy/projects/13ft/app/api/article/route.ts` + - Added 1 Zod schema (DiffbotArticleSchema) + - Added 6 validation points + - Cache operations fully validated + - Error handlers validated + +--- + +## No Breaking Changes + +- All validation uses `.safeParse()` for graceful handling +- Fallback mechanisms preserve existing behavior +- Additional logging provides better debugging +- No changes to public API interfaces diff --git a/app/[...slug]/page.tsx b/app/[...slug]/page.tsx index 1b61c59f..8de2aea4 100644 --- a/app/[...slug]/page.tsx +++ b/app/[...slug]/page.tsx @@ -8,6 +8,11 @@ export default function RedirectPage() { const router = useRouter(); useEffect(() => { + // Skip Next.js internal routes and API routes + if (pathname.startsWith('/_next') || pathname.startsWith('/api')) { + return; + } + // Extract the path after the initial '/' const slug = pathname.substring(1); diff --git a/app/actions.ts b/app/actions.ts deleted file mode 100644 index 092417df..00000000 --- a/app/actions.ts +++ /dev/null @@ -1,29 +0,0 @@ -"use server"; - -import { Resend } from "resend"; - -// Initialize Resend with your API Key -const resend = new Resend(process.env.RESEND_API_KEY); - -export async function sendEmail(formData: { - from: string; - subject: string; - message: string; -}) { - try { - await resend.emails.send({ - // from: "Acme ", - // to: ["contact@smry.ai"], - from: "Acme ", - to: [process.env.EMAIL_TO_ADDRESS as string], - subject: formData.subject, - html: formData.message + " from " + formData.from, - }); - console.log("success") - - return { success: true }; - } catch (error) { - console.error("Error sending email:", error); - return { success: false, error: "Failed to send email" }; - } -} diff --git a/app/api/article/route.ts b/app/api/article/route.ts new file mode 100644 index 00000000..10ed8339 --- /dev/null +++ b/app/api/article/route.ts @@ -0,0 +1,566 @@ +import { NextRequest, NextResponse } from "next/server"; +import { ArticleRequestSchema, ArticleResponseSchema, ErrorResponseSchema } from "@/types/api"; +import { fetchArticleWithDiffbot } from "@/lib/api/diffbot"; +import { Redis } from "@upstash/redis"; +import { z } from "zod"; +import { fromError } from "zod-validation-error"; +import { AppError, createNetworkError, createParseError } from "@/lib/errors"; +import { createLogger } from "@/lib/logger"; +import { Readability } from "@mozilla/readability"; +import { JSDOM } from "jsdom"; + +const logger = createLogger('api:article'); + +const redis = new Redis({ + url: process.env.UPSTASH_REDIS_REST_URL!, + token: process.env.UPSTASH_REDIS_REST_TOKEN!, +}); + +// Diffbot Article schema - validates the response from fetchArticleWithDiffbot +const DiffbotArticleSchema = z.object({ + title: z.string().min(1, "Article title cannot be empty"), + html: z.string().min(1, "Article HTML content cannot be empty"), + text: z.string().min(1, "Article text content cannot be empty"), + siteName: z.string().min(1, "Site name cannot be empty"), +}); + +// Article schema for caching +const CachedArticleSchema = z.object({ + title: z.string(), + content: z.string(), + textContent: z.string(), + length: z.number().int().positive(), + siteName: z.string(), +}); + +type CachedArticle = z.infer; + +/** + * Get URL with source prefix + */ +function getUrlWithSource(source: string, url: string): string { + switch (source) { + case "wayback": + return `https://web.archive.org/web/0/${url}`; + case "smry-fast": + case "smry-slow": + default: + return url; + } +} + +function buildSmryUrl(url: string, source?: string | null): string { + if (!source || source === "smry-fast") { + return `https://smry.ai/${url}`; + } + + return `https://smry.ai/${url}?source=${source}`; +} + +/** + * Save or return longer article + */ +async function saveOrReturnLongerArticle( + key: string, + newArticle: CachedArticle +): Promise { + try { + // Validate incoming article first + const incomingValidation = CachedArticleSchema.safeParse(newArticle); + + if (!incomingValidation.success) { + const validationError = fromError(incomingValidation.error); + logger.error({ + key, + validationError: validationError.toString(), + articleData: { + hasTitle: !!newArticle.title, + hasContent: !!newArticle.content, + hasTextContent: !!newArticle.textContent, + length: newArticle.length, + } + }, 'Incoming article validation failed'); + throw new Error(`Invalid article data: ${validationError.toString()}`); + } + + const validatedNewArticle = incomingValidation.data; + + const cachedData = await redis.get(key); + + if (cachedData) { + const existingValidation = CachedArticleSchema.safeParse(cachedData); + + if (!existingValidation.success) { + const validationError = fromError(existingValidation.error); + logger.warn({ + key, + validationError: validationError.toString() + }, 'Existing cache validation failed - replacing with new article'); + + // Save new article since existing is invalid + await redis.set(key, validatedNewArticle); + logger.debug({ key, length: validatedNewArticle.length }, 'Cached article (replaced invalid)'); + return validatedNewArticle; + } + + const existingArticle = existingValidation.data; + + if (validatedNewArticle.length > existingArticle.length) { + await redis.set(key, validatedNewArticle); + logger.debug({ key, newLength: validatedNewArticle.length, oldLength: existingArticle.length }, 'Cached longer article'); + return validatedNewArticle; + } else { + logger.debug({ key, length: existingArticle.length }, 'Using existing cached article'); + return existingArticle; + } + } else { + // No existing article, save the new one + await redis.set(key, validatedNewArticle); + logger.debug({ key, length: validatedNewArticle.length }, 'Cached article (new)'); + return validatedNewArticle; + } + } catch (error) { + const validationError = fromError(error); + logger.warn({ error: validationError.toString() }, 'Cache operation error'); + // Return the new article even if caching fails + return newArticle; + } +} + +async function fetchArticleWithSmryFast( + url: string +): Promise<{ article: CachedArticle; cacheURL: string } | { error: AppError }> { + try { + logger.info({ source: "smry-fast", hostname: new URL(url).hostname }, 'Fetching article directly'); + + const response = await fetch(url, { + headers: { + "User-Agent": "smry.ai bot/1.0 (+https://smry.ai)", + Accept: "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", + "Accept-Language": "en-US,en;q=0.9", + }, + cache: "no-store", + redirect: "follow", + }); + + if (!response.ok) { + logger.error({ source: "smry-fast", status: response.status }, 'Direct fetch HTTP error'); + return { + error: createNetworkError( + `HTTP ${response.status} error when fetching article`, + url, + response.status + ), + }; + } + + const html = await response.text(); + + if (!html) { + logger.warn({ source: "smry-fast", htmlLength: 0 }, 'Received empty HTML content'); + return { + error: createParseError('Received empty HTML content', 'smry-fast'), + }; + } + + const dom = new JSDOM(html, { url }); + const reader = new Readability(dom.window.document); + const parsed = reader.parse(); + + if (!parsed || !parsed.content || !parsed.textContent) { + logger.warn({ source: "smry-fast" }, 'Readability extraction failed'); + return { + error: createParseError('Failed to extract article content with Readability', 'smry-fast'), + }; + } + + const articleCandidate: CachedArticle = { + title: parsed.title || dom.window.document.title || 'Untitled', + content: parsed.content, + textContent: parsed.textContent, + length: parsed.textContent.length, + siteName: (() => { + try { + return new URL(url).hostname; + } catch { + return parsed.siteName || 'unknown'; + } + })(), + }; + + const validationResult = CachedArticleSchema.safeParse(articleCandidate); + + if (!validationResult.success) { + const validationError = fromError(validationResult.error); + logger.error({ source: "smry-fast", validationError: validationError.toString() }, 'Readability article validation failed'); + return { + error: createParseError( + `Invalid Readability article: ${validationError.toString()}`, + 'smry-fast', + validationError + ), + }; + } + + const validatedArticle = validationResult.data; + logger.debug({ source: "smry-fast", title: validatedArticle.title, length: validatedArticle.length }, 'Direct article parsed and validated'); + + return { + article: validatedArticle, + cacheURL: url, + }; + } catch (error) { + logger.error({ source: "smry-fast", error }, 'Direct fetch exception'); + return { + error: createNetworkError('Failed to fetch article directly', url, undefined, error), + }; + } +} + +/** + * Fetch and parse article using Diffbot (for smry-slow and wayback sources) + */ +async function fetchArticleWithDiffbotWrapper( + urlWithSource: string, + source: string +): Promise<{ article: CachedArticle; cacheURL: string } | { error: AppError }> { + try { + logger.info({ source, hostname: new URL(urlWithSource).hostname }, 'Fetching article with Diffbot'); + + // Pass source parameter to enable debug tracking + const diffbotResult = await fetchArticleWithDiffbot(urlWithSource, source); + + if (diffbotResult.isErr()) { + const error = diffbotResult.error; + logger.error({ source, errorType: error.type, message: error.message, hasDebugContext: !!error.debugContext }, 'Diffbot fetch failed'); + return { error }; + } + + const diffbotArticle = diffbotResult.value; + + // Validate Diffbot response with Zod + const validationResult = DiffbotArticleSchema.safeParse(diffbotArticle); + + if (!validationResult.success) { + const validationError = fromError(validationResult.error); + logger.error({ + source, + validationError: validationError.toString(), + receivedData: { + hasTitle: !!diffbotArticle.title, + hasHtml: !!diffbotArticle.html, + hasText: !!diffbotArticle.text, + hasSiteName: !!diffbotArticle.siteName, + titleLength: diffbotArticle.title?.length || 0, + htmlLength: diffbotArticle.html?.length || 0, + textLength: diffbotArticle.text?.length || 0, + } + }, 'Diffbot response validation failed'); + + return { + error: createParseError( + `Invalid Diffbot response: ${validationError.toString()}`, + source, + validationError + ) + }; + } + + const validatedArticle = validationResult.data; + + const article: CachedArticle = { + title: validatedArticle.title, + content: validatedArticle.html, + textContent: validatedArticle.text, + length: validatedArticle.text.length, + siteName: validatedArticle.siteName, + }; + + logger.debug({ source, title: article.title, length: article.length }, 'Diffbot article parsed and validated'); + return { article, cacheURL: urlWithSource }; + } catch (error) { + logger.error({ source, error }, 'Article parsing exception'); + return { error: createParseError("Failed to parse article", source, error) }; + } +} + +/** + * Fetch and parse article - routes to appropriate method based on source + */ +async function fetchArticle( + urlWithSource: string, + source: string +): Promise<{ article: CachedArticle; cacheURL: string } | { error: AppError }> { + switch (source) { + case "smry-fast": + return fetchArticleWithSmryFast(urlWithSource); + case "smry-slow": + case "wayback": + return fetchArticleWithDiffbotWrapper(urlWithSource, source); + default: + return { + error: createParseError(`Unsupported source: ${source}`, source), + }; + } +} + +/** + * GET /api/article?url=...&source=... + */ +export async function GET(request: NextRequest) { + try { + // Parse and validate query parameters + const searchParams = request.nextUrl.searchParams; + const url = searchParams.get("url"); + const source = searchParams.get("source"); + + const validationResult = ArticleRequestSchema.safeParse({ url, source }); + + if (!validationResult.success) { + const error = fromError(validationResult.error); + const debugSmryUrl = url ? buildSmryUrl(url, source ?? "smry-fast") : undefined; + logger.error({ error: error.toString(), smryUrl: debugSmryUrl, url, source }, 'Validation error - Full URL for debugging'); + return NextResponse.json( + ErrorResponseSchema.parse({ + error: error.toString(), + type: "VALIDATION_ERROR", + }), + { status: 400 } + ); + } + + const { url: validatedUrl, source: validatedSource } = validationResult.data; + + // Construct the full smry.ai URL for debugging + const smryUrl = buildSmryUrl(validatedUrl, validatedSource); + + // Jina.ai is handled by a separate endpoint (/api/jina) for client-side fetching + if (validatedSource === "jina.ai") { + logger.warn({ source: validatedSource, smryUrl }, 'Jina.ai source not supported in this endpoint'); + return NextResponse.json( + ErrorResponseSchema.parse({ + error: "Jina.ai source is handled client-side. Use /api/jina endpoint instead.", + type: "VALIDATION_ERROR", + }), + { status: 400 } + ); + } + + logger.info({ source: validatedSource, hostname: new URL(validatedUrl).hostname, smryUrl }, 'API Request'); + + const urlWithSource = getUrlWithSource(validatedSource, validatedUrl); + const cacheKey = `${validatedSource}:${validatedUrl}`; + + // Try to get from cache + try { + const cachedArticle = await redis.get(cacheKey); + + if (cachedArticle) { + // Validate cached data + const cacheValidation = CachedArticleSchema.safeParse(cachedArticle); + + if (!cacheValidation.success) { + const validationError = fromError(cacheValidation.error); + logger.warn({ + cacheKey, + validationError: validationError.toString(), + receivedType: typeof cachedArticle, + hasKeys: cachedArticle ? Object.keys(cachedArticle as any) : [] + }, 'Cache validation failed - will fetch fresh'); + // Continue to fetch fresh data instead of using invalid cache + } else { + const article = cacheValidation.data; + + if (article.length > 4000) { + logger.debug({ source: validatedSource, hostname: new URL(validatedUrl).hostname, length: article.length }, 'Cache hit'); + + // Validate final response structure + const response = ArticleResponseSchema.parse({ + source: validatedSource, + cacheURL: urlWithSource, + article: { + title: article.title, + byline: "", + dir: "", + lang: "", + content: article.content, + textContent: article.textContent, + length: article.length, + siteName: article.siteName, + }, + status: "success", + }); + + return NextResponse.json(response); + } + } + } + } catch (error) { + const validationError = fromError(error); + logger.warn({ + error: error instanceof Error ? error.message : String(error), + validationError: validationError.toString() + }, 'Cache read error'); + // Continue to fetch fresh data + } + + // Fetch fresh data + logger.info({ source: validatedSource, smryUrl }, 'Fetching fresh data'); + const result = await fetchArticle(urlWithSource, validatedSource); + + if ("error" in result) { + const appError = result.error; + logger.error({ + source: validatedSource, + errorType: appError.type, + message: appError.message, + hasDebugContext: !!appError.debugContext, + smryUrl, + urlWithSource, + }, 'Fetch failed - Full URL for debugging'); + + // Include cacheURL in error details so frontend can show the actual URL that was attempted + const errorDetails = { + ...appError, + url: urlWithSource, // The actual URL that was attempted (with source prefix) + smryUrl, // Full smry.ai URL for easy debugging + }; + + return NextResponse.json( + ErrorResponseSchema.parse({ + error: appError.message, + type: appError.type, + details: errorDetails, + debugContext: appError.debugContext, + }), + { status: 500 } + ); + } + + const { article, cacheURL } = result; + + // Save to cache + try { + const savedArticle = await saveOrReturnLongerArticle(cacheKey, article); + + // Validate saved article + const savedValidation = CachedArticleSchema.safeParse(savedArticle); + + if (!savedValidation.success) { + const validationError = fromError(savedValidation.error); + logger.error({ + cacheKey, + validationError: validationError.toString() + }, 'Saved article validation failed'); + + // Use original article if saved validation fails + const response = ArticleResponseSchema.parse({ + source: validatedSource, + cacheURL, + article: { + title: article.title, + byline: "", + dir: "", + lang: "", + content: article.content, + textContent: article.textContent, + length: article.length, + siteName: article.siteName, + }, + status: "success", + }); + + return NextResponse.json(response); + } + + const validatedSavedArticle = savedValidation.data; + + const response = ArticleResponseSchema.parse({ + source: validatedSource, + cacheURL, + article: { + title: validatedSavedArticle.title, + byline: "", + dir: "", + lang: "", + content: validatedSavedArticle.content, + textContent: validatedSavedArticle.textContent, + length: validatedSavedArticle.length, + siteName: validatedSavedArticle.siteName, + }, + status: "success", + }); + + logger.info({ source: validatedSource, title: validatedSavedArticle.title }, 'Success'); + return NextResponse.json(response); + } catch (error) { + const validationError = fromError(error); + logger.warn({ + error: error instanceof Error ? error.message : String(error), + validationError: validationError.toString() + }, 'Cache save error'); + + // Return article even if caching fails - validate it first + const articleValidation = CachedArticleSchema.safeParse(article); + + if (!articleValidation.success) { + const articleError = fromError(articleValidation.error); + logger.error({ + validationError: articleError.toString() + }, 'Article validation failed in error handler'); + + // Return error if we can't validate the article + return NextResponse.json( + ErrorResponseSchema.parse({ + error: `Article validation failed: ${articleError.toString()}`, + type: "VALIDATION_ERROR", + }), + { status: 500 } + ); + } + + const validatedArticle = articleValidation.data; + + const response = ArticleResponseSchema.parse({ + source: validatedSource, + cacheURL, + article: { + title: validatedArticle.title, + byline: "", + dir: "", + lang: "", + content: validatedArticle.content, + textContent: validatedArticle.textContent, + length: validatedArticle.length, + siteName: validatedArticle.siteName, + }, + status: "success", + }); + + return NextResponse.json(response); + } + } catch (error) { + // Try to extract URL info for better debugging + const searchParams = request.nextUrl.searchParams; + const url = searchParams.get("url"); + const source = searchParams.get("source") || "smry-fast"; + const debugSmryUrl = url ? buildSmryUrl(url, source) : undefined; + + logger.error({ + error, + smryUrl: debugSmryUrl, + url, + source, + }, 'Unexpected error in API route - Full URL for debugging'); + + return NextResponse.json( + ErrorResponseSchema.parse({ + error: "An unexpected error occurred", + type: "UNKNOWN_ERROR", + details: error instanceof Error ? error.message : String(error), + }), + { status: 500 } + ); + } +} + diff --git a/app/api/direct/route.ts b/app/api/direct/route.ts deleted file mode 100644 index a9833699..00000000 --- a/app/api/direct/route.ts +++ /dev/null @@ -1,90 +0,0 @@ -import { JSDOM } from "jsdom"; -import { Readability } from "@mozilla/readability"; -import { fetchWithTimeout } from "@/lib/fetch-with-timeout"; -import { safeError } from "@/lib/safe-error"; - -function createErrorResponse(message: string, status: number, details = {}) { - return new Response(JSON.stringify({ message, details }), { - headers: { "Content-Type": "application/json" }, - status, - }); -} - -export async function GET(request: Request) { - const { searchParams } = new URL(request.url); - const url = searchParams.get("url"); - const source = searchParams.get("source"); - - if (!url) { - return createErrorResponse("URL parameter is required.", 400); - } - if (!source) { - return createErrorResponse("Source parameter is required.", 400); - } - - let urlWithSource; - switch (source) { - case "direct": - urlWithSource = url; - break; - case "wayback": - urlWithSource = `https://web.archive.org/web/2/${encodeURIComponent( - url - )}`; - break; - case "google": - const cleanUrl = url.replace(/^https?:\/+/, ""); - const finalUrl = `https://${cleanUrl}`; - urlWithSource = `https://webcache.googleusercontent.com/search?q=cache:${encodeURIComponent( - finalUrl - )}`; - break; - default: - return createErrorResponse("Invalid source parameter.", 400); - } - - try { - const response = await fetchWithTimeout(urlWithSource); - - if (!response.ok) { - // throw new Error(`HTTP error! status: ${response.status}`); - - return new Response(JSON.stringify({ - url: urlWithSource, - cacheURL: url, - error: `HTTP error! status: ${response.status}`, - status: "error", - contentLength: 0, - }), { - headers: { "Content-Type": "application/json" }, - status: response.status, - }); - } - - const html = await response.text(); - const doc = new JSDOM(html); - const reader = new Readability(doc.window.document); - const article = reader.parse(); - - // // if source is 'wayback', then await a timeout of 10s - // if (source === 'wayback') { - // await new Promise(resolve => setTimeout(resolve, 10000)); - // } - - const resp = { - source, - cacheURL: url, - article, - status: "success", - contentLength: article?.content.length || 0, - }; - - return new Response(JSON.stringify(resp), { - headers: { "Content-Type": "application/json" }, - status: 200, - }); - } catch (error) { - const err = safeError(error); - return createErrorResponse(err.message, err.status, { sourceUrl: url }); - } -} diff --git a/app/api/jina/route.ts b/app/api/jina/route.ts new file mode 100644 index 00000000..cf1434ce --- /dev/null +++ b/app/api/jina/route.ts @@ -0,0 +1,207 @@ +import { NextRequest, NextResponse } from "next/server"; +import { JinaCacheRequestSchema, JinaCacheUpdateSchema, ArticleResponseSchema, ErrorResponseSchema } from "@/types/api"; +import { z } from "zod"; +import { fromError } from "zod-validation-error"; +import { createLogger } from "@/lib/logger"; +import { Redis } from "@upstash/redis"; + +const logger = createLogger('api:jina'); + +const redis = new Redis({ + url: process.env.UPSTASH_REDIS_REST_URL!, + token: process.env.UPSTASH_REDIS_REST_TOKEN!, +}); + +// Cached article schema +const CachedArticleSchema = z.object({ + title: z.string(), + content: z.string(), + textContent: z.string(), + length: z.number().int().positive(), + siteName: z.string(), +}); + +/** + * GET /api/jina?url=... + * Check cache for Jina article + */ +export async function GET(request: NextRequest) { + try { + const searchParams = request.nextUrl.searchParams; + const url = searchParams.get("url"); + + const validationResult = JinaCacheRequestSchema.safeParse({ url }); + + if (!validationResult.success) { + const error = fromError(validationResult.error); + logger.error({ error: error.toString() }, 'Validation error'); + return NextResponse.json( + ErrorResponseSchema.parse({ + error: error.toString(), + type: "VALIDATION_ERROR", + }), + { status: 400 } + ); + } + + const { url: validatedUrl } = validationResult.data; + const cacheKey = `jina.ai:${validatedUrl}`; + + logger.debug({ hostname: new URL(validatedUrl).hostname }, 'Checking Jina cache'); + + try { + const cachedArticle = await redis.get>(cacheKey); + + if (cachedArticle) { + const article = CachedArticleSchema.parse(cachedArticle); + + // Only return if cached article is reasonably long + if (article.length > 4000) { + logger.debug({ hostname: new URL(validatedUrl).hostname, length: article.length }, 'Jina cache hit'); + + const response = ArticleResponseSchema.parse({ + source: "jina.ai", + cacheURL: `https://r.jina.ai/${validatedUrl}`, + article: { + ...article, + byline: "", + dir: "", + lang: "", + }, + status: "success", + }); + + return NextResponse.json(response); + } else { + logger.debug({ length: article.length }, 'Jina cache too short, will fetch fresh'); + } + } else { + logger.debug({ hostname: new URL(validatedUrl).hostname }, 'Jina cache miss'); + } + } catch (error) { + logger.warn({ error: error instanceof Error ? error.message : String(error) }, 'Jina cache read error'); + } + + // No cache or cache too short - return empty success + return NextResponse.json( + ErrorResponseSchema.parse({ + error: "Not cached", + type: "CACHE_MISS", + }), + { status: 404 } + ); + } catch (error) { + logger.error({ error }, 'Unexpected error in Jina GET'); + + return NextResponse.json( + ErrorResponseSchema.parse({ + error: "An unexpected error occurred", + type: "UNKNOWN_ERROR", + details: error instanceof Error ? error.message : String(error), + }), + { status: 500 } + ); + } +} + +/** + * POST /api/jina + * Update cache with Jina article if it's longer than existing or doesn't exist + */ +export async function POST(request: NextRequest) { + try { + const body = await request.json(); + + const validationResult = JinaCacheUpdateSchema.safeParse(body); + + if (!validationResult.success) { + const error = fromError(validationResult.error); + logger.error({ error: error.toString() }, 'Validation error'); + return NextResponse.json( + ErrorResponseSchema.parse({ + error: error.toString(), + type: "VALIDATION_ERROR", + }), + { status: 400 } + ); + } + + const { url, article } = validationResult.data; + const cacheKey = `jina.ai:${url}`; + + logger.info({ hostname: new URL(url).hostname, length: article.length }, 'Updating Jina cache'); + + try { + const existingArticle = await redis.get>(cacheKey); + + const validatedExisting = existingArticle + ? CachedArticleSchema.parse(existingArticle) + : null; + + // Only update if new article is longer or doesn't exist + if (!validatedExisting || article.length > validatedExisting.length) { + await redis.set(cacheKey, article); + logger.info({ hostname: new URL(url).hostname, length: article.length }, 'Jina cache updated'); + + const response = ArticleResponseSchema.parse({ + source: "jina.ai", + cacheURL: `https://r.jina.ai/${url}`, + article: { + ...article, + byline: "", + dir: "", + lang: "", + }, + status: "success", + }); + + return NextResponse.json(response); + } else { + logger.debug({ hostname: new URL(url).hostname, existingLength: validatedExisting.length, newLength: article.length }, 'Keeping existing Jina cache'); + + const response = ArticleResponseSchema.parse({ + source: "jina.ai", + cacheURL: `https://r.jina.ai/${url}`, + article: { + ...validatedExisting, + byline: "", + dir: "", + lang: "", + }, + status: "success", + }); + + return NextResponse.json(response); + } + } catch (error) { + logger.warn({ error: error instanceof Error ? error.message : String(error) }, 'Jina cache update error'); + + // Return the article even if caching fails + const response = ArticleResponseSchema.parse({ + source: "jina.ai", + cacheURL: `https://r.jina.ai/${url}`, + article: { + ...article, + byline: "", + dir: "", + lang: "", + }, + status: "success", + }); + + return NextResponse.json(response); + } + } catch (error) { + logger.error({ error }, 'Unexpected error in Jina POST'); + + return NextResponse.json( + ErrorResponseSchema.parse({ + error: "An unexpected error occurred", + type: "UNKNOWN_ERROR", + details: error instanceof Error ? error.message : String(error), + }), + { status: 500 } + ); + } +} + diff --git a/app/api/proxy/route.ts b/app/api/proxy/route.ts deleted file mode 100644 index dd702cce..00000000 --- a/app/api/proxy/route.ts +++ /dev/null @@ -1,375 +0,0 @@ -import { JSDOM } from "jsdom"; -import { Readability } from "@mozilla/readability"; -import { z } from "zod"; -import { parse } from "node-html-parser"; -import { NodeHtmlMarkdown } from "node-html-markdown"; -import showdown from "showdown"; -import Showdown from "showdown"; -import nlp from "compromise"; -import { HttpsProxyAgent } from "https-proxy-agent"; -import { Agent } from 'https'; -import { formatError } from "@/lib/format-error"; - -interface CustomFetchOptions extends RequestInit { - agent?: Agent; -} - -function createErrorResponse(message: string, status: number, details = {}) { - return new Response(JSON.stringify({ message, details }), { - headers: { "Content-Type": "application/json" }, - status, - }); -} - - - - -function wrapSentencesWithSpan(html: string): { - html: string; - spans: { text: string; className: string }[]; -} { - const dom = new JSDOM(html); - const document = dom.window.document; - let spanCount = 0; - const spanArray: { text: string; className: string }[] = []; - - function processNode(node: Node) { - if (node.nodeType === dom.window.Node.TEXT_NODE) { - const textContent = node.textContent || ""; - const sentences = nlp(textContent).sentences().out("array"); - let currentIndex = 0; - let newContent = ""; - - sentences.forEach((sentence: string) => { - const index = textContent.indexOf(sentence, currentIndex); - const preText = textContent.substring(currentIndex, index); - currentIndex = index + sentence.length; - - const className = `sentence-${spanCount++}`; - newContent += `${preText}${sentence}`; - spanArray.push({ text: sentence, className }); - }); - - newContent += textContent.substring(currentIndex); // Append any remaining text after the last sentence - return newContent; - } else if (node.nodeType === dom.window.Node.ELEMENT_NODE) { - // Recursively process child nodes for element nodes - Array.from(node.childNodes).forEach((child) => { - const processedContent = processNode(child); - if (child.nodeType === dom.window.Node.TEXT_NODE) { - const spanWrapper = document.createElement("span"); - spanWrapper.innerHTML = processedContent ?? ""; - child.replaceWith(spanWrapper); - } - }); - } - } - - processNode(document.body); - - return { html: dom.serialize(), spans: spanArray }; -} - -const KnownErrorSchema = z.object({ - message: z.string(), - status: z.number(), - error: z.string(), - details: z.record(z.string()).optional(), -}); - -const UnknownErrorSchema = z.object({ - message: z.string(), - error: z.string().optional(), -}); - -function safeError(error: unknown) { - const knownErrorResult = KnownErrorSchema.safeParse(error); - if (knownErrorResult.success) { - return knownErrorResult.data; - } - - const unknownErrorResult = UnknownErrorSchema.safeParse(error); - if (unknownErrorResult.success) { - return { ...unknownErrorResult.data, status: 500 }; - } - - console.error("Invalid error object:", error); - return { - message: "An unexpected error occurred.", - status: 500, - error: "Internal Server Error", - }; -} - - - -export async function GET(request: Request) { - const { searchParams } = new URL(request.url); - const url = searchParams.get("url"); - const origin = searchParams.get("origin") || undefined; - - if (!url) { - return createErrorResponse("URL parameter is required.", 400); - } - - const cleanUrl = url.replace(/^https?:\/+/, ''); - -// Add https:// prefix - const finalUrl = `https://${cleanUrl}`; - - // let sources: string[] = []; - // switch(origin) { - // case 'archive': - // sources = [`https://web.archive.org/web/2/${encodeURIComponent(url)}`]; - // break; - // case 'google': - // sources = [`https://webcache.googleusercontent.com/search?q=cache:${encodeURIComponent(finalUrl)}`]; - // break; - // case 'archive.is': - // // sources = [`http://archive.is/latest/${encodeURIComponent(url)}`]; - // break; - // default: - // sources = [url]; - // } - - const sources = [ - `https://web.archive.org/web/2/${encodeURIComponent(url)}`, - `https://webcache.googleusercontent.com/search?q=cache:${encodeURIComponent(finalUrl)}`, - // `http://archive.is/latest/${encodeURIComponent(url)}`, - url, - ]; - - - - try { - const fetchPromises = sources.map((sourceUrl) => - fetchWithTimeout(sourceUrl) - ); - const results = await Promise.allSettled(fetchPromises); - - const responses = results.map((result, index) => { - if (result.status === "fulfilled") { - const { url: responseUrl, html } = result.value; - let source = determineSource(responseUrl); - const doc = new JSDOM(html); - const reader = new Readability(doc.window.document); - const article = reader.parse(); - - if (article && article.content) { - return { - source, - cacheURL: sources[index], - article, - status: "success", - contentLength: article.content.length, - }; - } else { - return { - source, - cacheURL: sources[index], - error: "Article not found or processed.", - status: "error", - contentLength: 0, - }; - } - } else { - return { - source: determineSource(sources[index]), - cacheURL: sources[index], - error: formatError(result.reason), - status: "error", - contentLength: 0, - }; - } - }); - - responses.sort((a, b) => b.contentLength - a.contentLength); - - return new Response(JSON.stringify(responses), { - headers: { "Content-Type": "application/json" }, - status: 200, - }); - } catch (error) { - const err = safeError(error); - return createErrorResponse(err.message, err.status, { sourceUrl: url }); - } -} - -function determineSource(url: string) { - if (url.includes("webcache.googleusercontent.com")) { - return "Google Cache"; - } else if (url.includes("archive.org")) { - return "Wayback Machine"; - } - else if (url.includes("archive.is")) { - return "Archive.Is"; - } else { - return "Direct"; - } -} - -async function fetchWithTimeout(url: string) { - const timeout = 5000; // Timeout in milliseconds - const controller = new AbortController(); - const id = setTimeout(() => controller.abort(), timeout); - - try { - // Prepare fetch options - const options: CustomFetchOptions = { - headers: { - "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3", - }, - }; - - if (url.includes("googlecache") || url.includes("archive.is")) { - const proxyURL = process.env.PROXY_URL; - - if (!proxyURL) { - throw new Error("no proxy url") - } - - options.agent = new HttpsProxyAgent(proxyURL); - options.headers = { - "User-Agent": "Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.8.1.4) Gecko/20070515 Firefox/2.0.0.4", - } - } - - const response = await fetch(url, options); - - clearTimeout(id); - - if (!response.ok) { - throw new Error(`HTTP error! status: ${response.status}`); - } - - const buffer = await response.arrayBuffer(); - const decoder = new TextDecoder("utf-8"); - const html = decoder.decode(buffer); - - // Parse the HTML - const root = parse(html); - - // Update image sources - root.querySelectorAll("img").forEach((img) => { - // Fix 'src' attribute - const src = img.getAttribute("src"); - if (src && src.startsWith("/")) { - img.setAttribute("src", new URL(src, url).toString()); - } - if (src && src.includes("web.archive.org/web/")) { - const originalUrl = src.split("im_/")[1]; - if (originalUrl) { - img.setAttribute("src", originalUrl); - } - } - - // Fix 'srcset' attribute - const srcset = img.getAttribute("srcset"); - if (srcset) { - const newSrcset = srcset - .split(",") - .map((srcEntry) => { - let [src, descriptor] = srcEntry.trim().split(" "); - if (src && src.startsWith("/")) { - src = new URL(src, url).toString(); - } - if (src && src.includes("web.archive.org/web/")) { - const originalUrl = src.split("im_/")[1]; - if (originalUrl) { - src = originalUrl; - } - } - return descriptor ? `${src} ${descriptor}` : src; - }) - .join(", "); - - img.setAttribute("srcset", newSrcset); - } - }); - - // remove google cache header - const cacheHeader = root.querySelector('#bN015htcoyT__google-cache-hdr'); - if (cacheHeader) { - cacheHeader.remove(); - } - - // Update links - root.querySelectorAll("a").forEach((a) => { - const href = a.getAttribute("href"); - if (href && href.includes("web.archive.org/web/")) { - // Log found Wayback Machine link - - // Determine if the original URL starts with http:// or https:// - let originalUrl; - if (href.includes("/http://")) { - originalUrl = href.split("/http://")[1]; - originalUrl = "http://" + originalUrl; - } else if (href.includes("/https://")) { - originalUrl = href.split("/https://")[1]; - originalUrl = "https://" + originalUrl; - } - - if (originalUrl) { - // Update the href attribute with the original URL - a.setAttribute( - "href", - `${process.env.NEXT_PUBLIC_URL}/${new URL( - originalUrl, - url - ).toString()}` - ); - } - } else if (href) { - // Update the href attribute for other links - a.setAttribute( - "href", - `${process.env.NEXT_PUBLIC_URL}/proxy?url=${new URL( - href, - url - ).toString()}` - ); - } - }); - - return { url, html: root.toString() }; - } catch (err) { - clearTimeout(id); - - // Check for AbortError before transforming the error - if (err instanceof Error && err.name === "AbortError") { - throw new Error("Request timed out"); - } - - const error = safeError(err); - // Now, 'error' is the transformed error, so use its properties - throw new Error(`Error fetching URL: ${error.message}`); - } -} - -interface WaybackResponse { - archived_snapshots?: { - [key: string]: any; - }; -} -function getArchiveUrl(responseJson: string): string | null { - try { - const parsedJson: WaybackResponse = JSON.parse(responseJson); - if ( - parsedJson && - parsedJson.archived_snapshots && - parsedJson.archived_snapshots.closest && - parsedJson.archived_snapshots.closest.available - ) { - return parsedJson.archived_snapshots.closest.url; // Return the snapshot URL - } - return null; // No valid snapshot - } catch (e) { - console.error("Error parsing JSON for archive check:", e); - return null; - } -} - -function isWaybackMachineResponse(url: string) { - return url.includes("archive.org"); -} - diff --git a/app/api/summary/route.ts b/app/api/summary/route.ts new file mode 100644 index 00000000..ecb36c71 --- /dev/null +++ b/app/api/summary/route.ts @@ -0,0 +1,222 @@ +import { NextRequest, NextResponse } from "next/server"; +import { Redis } from "@upstash/redis"; +import { Ratelimit } from "@upstash/ratelimit"; +import OpenAI from "openai"; +import { z } from "zod"; +import { createLogger } from "@/lib/logger"; + +const redis = new Redis({ + url: process.env.UPSTASH_REDIS_REST_URL!, + token: process.env.UPSTASH_REDIS_REST_TOKEN!, +}); + +const openai = new OpenAI({ + apiKey: process.env.OPENAI_API_KEY, +}); + +const logger = createLogger('api:summary'); + +// Request schema +const SummaryRequestSchema = z.object({ + content: z.string().min(2000, "Content must be at least 2000 characters"), + title: z.string().optional(), + url: z.string().optional(), + ip: z.string().optional(), + language: z.string().optional().default("en"), +}); + +// Base summary prompt template +const BASE_SUMMARY_PROMPT = `You are an expert researcher and editor, skilled at distilling complex texts into clear, concise, and accurate summaries. + +I will provide you with an article. Your task is to generate a summary that captures the essence of the text while adhering to the following instructions. + +Instructions for the summary: + +Core Thesis: Begin by identifying and stating the article's central argument or main topic in a single, clear sentence. + +Key Points: Extract the primary supporting arguments, findings, or main points of the article. Present these as a bulleted list, with each point being a complete and self-contained sentence. + +Conclusion: Summarize the article's conclusion, implications, or call to action in a final sentence. + +What to Exclude: + +Do not include minor details, tangential information, or lengthy, specific examples. + +Paraphrase all information; do not use direct quotes. + +Exclude your own opinions, interpretations, or any information not explicitly present in the provided article. + +Format and Structure: + +Start with a brief introductory paragraph that states the core thesis. + +Follow with a bulleted list of the key supporting points. + +End with a concluding sentence that captures the article's final message. + +Length: The entire summary should be approximately 2-3 paragraphs. + +Tone and Audience: + +Maintain a neutral, objective, and informative tone throughout. + +The summary should be written for an audience that has not read the article and needs to quickly grasp its essential information. + +Here is the article to summarize: + +{text}`; + +// Language-specific instructions +const LANGUAGE_INSTRUCTIONS: Record = { + en: "Summarize in English.", + es: "Summarize in Spanish.", + fr: "Summarize in French.", + de: "Summarize in German.", + zh: "Summarize in Chinese.", + ja: "Summarize in Japanese.", + pt: "Summarize in Portuguese.", + ru: "Summarize in Russian.", + hi: "Summarize in Hindi.", + it: "Summarize in Italian.", + ko: "Summarize in Korean.", + ar: "Summarize in Arabic.", + nl: "Summarize in Dutch.", + tr: "Summarize in Turkish.", +}; + +/** + * POST /api/summary + * Generate AI summary of article content + */ +export async function POST(request: NextRequest) { + try { + const body = await request.json(); + + logger.info({ + contentLength: body.content?.length, + title: body.title, + language: body.language + }, 'Summary Request'); + + const validationResult = SummaryRequestSchema.safeParse(body); + + if (!validationResult.success) { + logger.error({ error: validationResult.error }, 'Validation error'); + return NextResponse.json( + { error: "Invalid request parameters" }, + { status: 400 } + ); + } + + const { content, title, url, ip, language } = validationResult.data; + const clientIp = ip || request.headers.get("x-real-ip") || request.headers.get("x-forwarded-for") || "unknown"; + + logger.debug({ clientIp, language, contentLength: content.length }, 'Request details'); + + // Rate limiting + if (process.env.NODE_ENV !== "development") { + const dailyRatelimit = new Ratelimit({ + redis: redis, + limiter: Ratelimit.slidingWindow(20, "1 d"), + }); + + const minuteRatelimit = new Ratelimit({ + redis: redis, + limiter: Ratelimit.slidingWindow(6, "1 m"), + }); + + const { success: dailySuccess } = await dailyRatelimit.limit( + `ratelimit_daily_${clientIp}` + ); + const { success: minuteSuccess } = await minuteRatelimit.limit( + `ratelimit_minute_${clientIp}` + ); + + if (!dailySuccess) { + logger.warn({ clientIp }, 'Daily rate limit exceeded'); + return NextResponse.json( + { + error: + "Your daily limit of 20 summaries has been reached. Please return tomorrow for more summaries.", + }, + { status: 429 } + ); + } + + if (!minuteSuccess) { + logger.warn({ clientIp }, 'Minute rate limit exceeded'); + return NextResponse.json( + { + error: + "Your limit of 6 summaries per minute has been reached. Please slow down.", + }, + { status: 429 } + ); + } + } + + // Check cache (use content hash or URL for cache key) + const cacheKey = url + ? `summary:${language}:${url}` + : `summary:${language}:${Buffer.from(content.substring(0, 500)).toString('base64').substring(0, 50)}`; + + const cached = await redis.get(cacheKey); + + if (cached && typeof cached === "string") { + logger.debug('Cache hit'); + return NextResponse.json({ summary: cached, cached: true }); + } + + // Content length is already validated by schema (minimum 2000 characters) + + logger.info({ title: title || 'article' }, 'Generating summary'); + + // Get language-specific instruction + const languageInstruction = LANGUAGE_INSTRUCTIONS[language] || LANGUAGE_INSTRUCTIONS.en; + + // Combine base prompt with language instruction + const userPrompt = `${BASE_SUMMARY_PROMPT}\n\n${languageInstruction}`; + + // Generate summary with OpenAI + const openaiResponse = await openai.chat.completions.create({ + model: "gpt-5-nano", + messages: [ + { + role: "system", + content: "You are an intelligent summary assistant.", + }, + { + role: "user", + content: userPrompt.replace("{text}", content.substring(0, 6000)), + }, + ], + }); + + const summary = openaiResponse.choices[0].message.content; + + if (!summary) { + logger.error('No summary generated'); + return NextResponse.json( + { error: "Failed to generate summary" }, + { status: 500 } + ); + } + + logger.info({ length: summary.length }, 'Summary generated'); + + // Cache the summary + await redis.set(cacheKey, summary); + + return NextResponse.json({ summary, cached: false }); + } catch (error) { + logger.error({ error }, 'Unexpected error'); + return NextResponse.json( + { + error: + error instanceof Error ? error.message : "An unexpected error occurred", + }, + { status: 500 } + ); + } +} + diff --git a/app/api/wayback.ts/route.ts b/app/api/wayback.ts/route.ts deleted file mode 100644 index d96478c8..00000000 --- a/app/api/wayback.ts/route.ts +++ /dev/null @@ -1,56 +0,0 @@ -import { JSDOM } from "jsdom"; -import { Readability } from "@mozilla/readability"; -import { fetchWithTimeout } from "@/lib/fetch-with-timeout"; -import { safeError } from "@/lib/safe-error"; - - - -function createErrorResponse(message: string, status: number, details = {}) { - return new Response(JSON.stringify({ message, details }), { - headers: { "Content-Type": "application/json" }, - status, - }); -} - - -export async function GET(request: Request) { - const { searchParams } = new URL(request.url); - const url = searchParams.get("url"); - - if (!url) { - return createErrorResponse("URL parameter is required.", 400); - } - - const waybackUrl = `https://web.archive.org/web/2/${encodeURIComponent(url)}` - - try { - const response = await fetchWithTimeout(waybackUrl); - - if (!response.ok) { - throw new Error(`HTTP error! status: ${response.status}`); - } - - const html = await response.text(); - let source = "smry"; - const doc = new JSDOM(html); - const reader = new Readability(doc.window.document); - const article = reader.parse(); - - const resp = { - source, - cacheURL: url, - article, - status: "success", - contentLength: article?.content.length || 0, - }; - - return new Response(JSON.stringify(resp), { - headers: { "Content-Type": "application/json" }, - status: 200, - }); - } catch (error) { - const err = safeError(error); - return createErrorResponse(err.message, err.status, { sourceUrl: url }); - } -} - diff --git a/app/feedback/page.tsx b/app/feedback/page.tsx deleted file mode 100644 index bffc8589..00000000 --- a/app/feedback/page.tsx +++ /dev/null @@ -1,88 +0,0 @@ -"use client"; - -import { useState } from "react"; -import { sendEmail } from "../actions"; -import { Label } from "@/components/ui/label"; -import { Input } from "@/components/ui/input"; -import { Textarea } from "@/components/ui/textarea"; -import { Button } from "@/components/ui/button"; -import TopBar from "@/components/top-bar"; - -export default function Page() { - const [emailData, setEmailData] = useState({ - from: "", - subject: "", - message: "", - }); - - const handleChange = (e: { target: { name: any; value: any } }) => { - setEmailData({ ...emailData, [e.target.name]: e.target.value }); - }; - - const handleSubmit = async (e: { preventDefault: () => void }) => { - e.preventDefault(); - const response = await sendEmail(emailData); - if (response.success) { - alert("Email sent successfully!"); - } else { - alert(response.error || "Failed to send email"); - } - }; - - return ( -
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