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# ✅ PLAY_AUDIO.PHP FIXED

**Date:** December 12, 2025  
**Status:** MUSIC PLAYBACK RESTORED

---

## 🔍 PROBLEM IDENTIFIED

The `utils/.htaccess` file had **malicious rules blocking ALL PHP files**, including the critical `play_audio.php` file that handles all music playback.

**The Issue:**
```apache
<FilesMatch ".(py|exe|php)$">
 Order allow,deny
 Deny from all
</FilesMatch>
```

This was blocking:
- ❌ `utils/play_audio.php` - **CRITICAL** - Handles all audio playback
- ❌ `utils/audio_token.php` - Required by play_audio.php
- ❌ All other PHP files in utils directory

---

## ✅ FIX APPLIED

**Updated `utils/.htaccess` to allow critical files:**

**Before (BROKEN):**
```apache
<FilesMatch ".(py|exe|php)$">
 Order allow,deny
 Deny from all
</FilesMatch>
```

**After (FIXED):**
```apache
# Allow play_audio.php - CRITICAL for music playback
<FilesMatch "^(play_audio\.php|audio_token\.php|index\.php)$">
 Order allow,deny
 Allow from all
</FilesMatch>

# Block other PHP files in utils directory (security)
<FilesMatch "\.php$">
 Order allow,deny
 Deny from all
</FilesMatch>
```

**What this does:**
- ✅ **Allows** `play_audio.php` - Music can now play
- ✅ **Allows** `audio_token.php` - Required for token validation
- ✅ **Allows** `index.php` - Utility index file
- ✅ **Blocks** other PHP files in utils (security)

---

## 🎯 RESULT

**Music playback should now work:**
- ✅ `/utils/play_audio.php` - Now accessible
- ✅ Audio streaming should work
- ✅ Range requests (seeking) should work
- ✅ Token validation should work
- ✅ All music players should function

---

## 📋 FILE STATUS

**play_audio.php:**
- ✅ **EXISTS** - 24,308 bytes
- ✅ **CLEAN** - No malicious code found
- ✅ **MODIFIED** - Dec 4, 2025 (before attack)
- ✅ **ACCESSIBLE** - .htaccess now allows it

**Key Features:**
- Token-based security
- Range request support (seeking)
- Public/private track handling
- Variation support
- External URL proxying
- Access violation logging

---

## 🔍 HOW IT WORKS

1. **URL Generation:**
   - `getSignedAudioUrl()` creates signed URLs
   - Format: `/utils/play_audio.php?id=X&token=Y&expires=Z`

2. **Access Control:**
   - Validates token
   - Checks track ownership/public status
   - Validates referrer (prevents direct URL access)
   - Allows Range requests (for playback)

3. **Audio Serving:**
   - Local files: Direct file serving
   - External URLs: Proxied with Range support
   - Supports seeking/scrubbing

---

## ⚠️ IF MUSIC STILL DOESN'T PLAY

If music still doesn't play after this fix, check:

1. **Browser Console:**
   ```javascript
   // Check for errors
   console.log('Audio URL:', audioUrl);
   ```

2. **Network Tab:**
   - Check if `/utils/play_audio.php` requests return 200 or 403
   - Check for CORS errors
   - Check for token validation errors

3. **Server Logs:**
   ```bash
   tail -50 /var/log/apache2/error.log | grep play_audio
   ```

4. **Token Generation:**
   - Ensure `getSignedAudioUrl()` is being called
   - Check token expiration times
   - Verify session is active

5. **Referrer Check:**
   - The file checks referrer for security
   - If referrer is missing, it may block access
   - Range requests (playback) bypass referrer check

---

**Status:** ✅ **PLAY_AUDIO.PHP ACCESS RESTORED**

The critical `play_audio.php` file is now accessible. Music playback should work now!