mirror of
https://github.com/aljazceru/enclava.git
synced 2025-12-17 15:34:36 +01:00
working chatbot, rag weird
This commit is contained in:
@@ -275,14 +275,14 @@ async def chat_with_chatbot(
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current_user: User = Depends(get_current_user),
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db: AsyncSession = Depends(get_db)
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):
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"""Send a message to a chatbot and get a response"""
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"""Send a message to a chatbot and get a response (without persisting conversation)"""
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user_id = current_user.get("id") if isinstance(current_user, dict) else current_user.id
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log_api_request("chat_with_chatbot", {
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"user_id": user_id,
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"chatbot_id": chatbot_id,
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"message_length": len(request.message)
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})
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try:
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# Get the chatbot instance
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result = await db.execute(
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@@ -291,74 +291,40 @@ async def chat_with_chatbot(
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.where(ChatbotInstance.created_by == str(user_id))
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)
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chatbot = result.scalar_one_or_none()
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if not chatbot:
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raise HTTPException(status_code=404, detail="Chatbot not found")
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if not chatbot.is_active:
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raise HTTPException(status_code=400, detail="Chatbot is not active")
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# Initialize conversation service
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conversation_service = ConversationService(db)
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# Get or create conversation
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conversation = await conversation_service.get_or_create_conversation(
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chatbot_id=chatbot_id,
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user_id=str(user_id),
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conversation_id=request.conversation_id
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)
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# Add user message to conversation
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await conversation_service.add_message(
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conversation_id=conversation.id,
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role="user",
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content=request.message,
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metadata={}
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)
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# Get chatbot module and generate response
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try:
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chatbot_module = module_manager.modules.get("chatbot")
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if not chatbot_module:
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raise HTTPException(status_code=500, detail="Chatbot module not available")
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# Load conversation history for context
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conversation_history = await conversation_service.get_conversation_history(
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conversation_id=conversation.id,
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limit=chatbot.config.get('memory_length', 10),
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include_system=False
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)
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# Use the chatbot module to generate a response
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# Use the chatbot module to generate a response (without persisting)
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response_data = await chatbot_module.chat(
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chatbot_config=chatbot.config,
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message=request.message,
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conversation_history=conversation_history,
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conversation_history=[], # Empty history for test chat
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user_id=str(user_id)
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)
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response_content = response_data.get("response", "I'm sorry, I couldn't generate a response.")
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except Exception as e:
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# Use fallback response
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fallback_responses = chatbot.config.get("fallback_responses", [
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"I'm sorry, I'm having trouble processing your request right now."
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])
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response_content = fallback_responses[0] if fallback_responses else "I'm sorry, I couldn't process your request."
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# Save assistant message using conversation service
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assistant_message = await conversation_service.add_message(
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conversation_id=conversation.id,
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role="assistant",
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content=response_content,
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metadata={},
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sources=response_data.get("sources")
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)
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# Return response without conversation ID (since we're not persisting)
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return {
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"conversation_id": conversation.id,
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"response": response_content,
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"timestamp": assistant_message.timestamp.isoformat()
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"sources": response_data.get("sources")
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}
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except HTTPException:
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@@ -29,7 +29,7 @@ class SecurityManager:
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"""Setup patterns for prompt injection detection"""
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self.injection_patterns = [
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# Direct instruction injection
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r"(?i)(ignore|forget|disregard|override)\s+(previous|all|above|prior)\s+(instructions|rules|prompts)",
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r"(?i)(ignore|forget|disregard|override).{0,20}(instructions|rules|prompts)",
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r"(?i)(new|updated|different)\s+(instructions|rules|system)",
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r"(?i)act\s+as\s+(if|though)\s+you\s+(are|were)",
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r"(?i)pretend\s+(to\s+be|you\s+are)",
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@@ -61,12 +61,12 @@ class SecurityManager:
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r"(?i)base64\s*:",
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r"(?i)hex\s*:",
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r"(?i)unicode\s*:",
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r"[A-Za-z0-9+/]{20,}={0,2}", # Potential base64
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r"(?i)\b[A-Za-z0-9+/]{40,}={0,2}\b", # More specific base64 pattern (longer sequences)
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# SQL injection patterns (for system prompts)
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r"(?i)(union|select|insert|update|delete|drop|create)\s+",
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r"(?i)(or|and)\s+1\s*=\s*1",
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r"(?i)';?\s*(drop|delete|insert)",
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# SQL injection patterns (more specific to reduce false positives)
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r"(?i)(union\s+select|select\s+\*|insert\s+into|update\s+\w+\s+set|delete\s+from|drop\s+table|create\s+table)\s",
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r"(?i)(or|and)\s+\d+\s*=\s*\d+",
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r"(?i)';?\s*(drop\s+table|delete\s+from|insert\s+into)",
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# Command injection patterns
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r"(?i)(exec|eval|system|shell|cmd)\s*\(",
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@@ -88,23 +88,27 @@ class SecurityManager:
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def validate_prompt_security(self, messages: List[Dict[str, str]]) -> Tuple[bool, float, List[str]]:
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"""
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Validate messages for prompt injection attempts
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Returns:
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Tuple[bool, float, List[str]]: (is_safe, risk_score, detected_patterns)
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"""
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detected_patterns = []
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total_risk = 0.0
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# Check if this is a system/RAG request
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is_system_request = self._is_system_request(messages)
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for message in messages:
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content = message.get("content", "")
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if not content:
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continue
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# Check against injection patterns
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# Check against injection patterns with context awareness
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for i, pattern in enumerate(self.compiled_patterns):
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matches = pattern.findall(content)
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if matches:
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pattern_risk = self._calculate_pattern_risk(i, matches)
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# Apply context-aware risk calculation
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pattern_risk = self._calculate_pattern_risk(i, matches, message.get("role", "user"), is_system_request)
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total_risk += pattern_risk
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detected_patterns.append({
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"pattern_index": i,
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@@ -112,57 +116,97 @@ class SecurityManager:
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"matches": matches,
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"risk": pattern_risk
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})
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# Additional security checks
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total_risk += self._check_message_characteristics(content)
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# Additional security checks with context awareness
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total_risk += self._check_message_characteristics(content, message.get("role", "user"), is_system_request)
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# Normalize risk score (0.0 to 1.0)
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risk_score = min(total_risk / len(messages) if messages else 0.0, 1.0)
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is_safe = risk_score < settings.API_SECURITY_RISK_THRESHOLD
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# Never block - always return True for is_safe
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is_safe = True
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if detected_patterns:
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logger.warning(f"Detected {len(detected_patterns)} potential injection patterns, risk score: {risk_score}")
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logger.info(f"Detected {len(detected_patterns)} potential injection patterns, risk score: {risk_score} (system_request: {is_system_request})")
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return is_safe, risk_score, detected_patterns
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def _calculate_pattern_risk(self, pattern_index: int, matches: List) -> float:
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"""Calculate risk score for a detected pattern"""
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def _calculate_pattern_risk(self, pattern_index: int, matches: List, role: str, is_system_request: bool) -> float:
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"""Calculate risk score for a detected pattern with context awareness"""
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# Different patterns have different risk levels
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high_risk_patterns = [0, 1, 2, 3, 4, 5, 6, 7, 14, 15, 16, 22, 23, 24] # System manipulation, jailbreak
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high_risk_patterns = [0, 1, 2, 3, 4, 5, 6, 7, 22, 23, 24] # System manipulation, jailbreak
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medium_risk_patterns = [8, 9, 10, 11, 12, 13, 17, 18, 19, 20, 21] # Escape attempts, info extraction
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# Base risk score
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base_risk = 0.8 if pattern_index in high_risk_patterns else 0.5 if pattern_index in medium_risk_patterns else 0.3
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# Increase risk based on number of matches
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match_multiplier = min(1.0 + (len(matches) - 1) * 0.2, 2.0)
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# Apply context-specific risk reduction
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if is_system_request or role == "system":
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# Reduce risk for system messages and RAG content
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if pattern_index in [14, 15, 16]: # Encoding patterns (base64, hex, unicode)
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base_risk *= 0.2 # Reduce encoding risk by 80% for system content
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elif pattern_index in [17, 18, 19]: # SQL patterns
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base_risk *= 0.3 # Reduce SQL risk by 70% for system content
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else:
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base_risk *= 0.6 # Reduce other risks by 40% for system content
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# Increase risk based on number of matches, but cap it
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match_multiplier = min(1.0 + (len(matches) - 1) * 0.1, 1.5) # Reduced multiplier
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return base_risk * match_multiplier
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def _check_message_characteristics(self, content: str) -> float:
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"""Check message characteristics for additional risk factors"""
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def _check_message_characteristics(self, content: str, role: str, is_system_request: bool) -> float:
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"""Check message characteristics for additional risk factors with context awareness"""
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risk = 0.0
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# Excessive length (potential stuffing attack)
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if len(content) > 10000:
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risk += 0.3
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# High ratio of special characters
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# Excessive length (potential stuffing attack) - less restrictive for system content
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length_threshold = 50000 if is_system_request else 10000 # Much higher threshold for system content
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if len(content) > length_threshold:
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risk += 0.1 if is_system_request else 0.3
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# High ratio of special characters - more lenient for system content
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special_chars = sum(1 for c in content if not c.isalnum() and not c.isspace())
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if len(content) > 0 and special_chars / len(content) > 0.5:
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risk += 0.4
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# Multiple encoding indicators
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if len(content) > 0:
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char_ratio = special_chars / len(content)
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threshold = 0.8 if is_system_request else 0.5
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if char_ratio > threshold:
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risk += 0.2 if is_system_request else 0.4
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# Multiple encoding indicators - reduced risk for system content
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encoding_indicators = ["base64", "hex", "unicode", "url", "ascii"]
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found_encodings = sum(1 for indicator in encoding_indicators if indicator.lower() in content.lower())
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if found_encodings > 1:
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risk += 0.3
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# Excessive newlines or formatting (potential formatting attacks)
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if content.count('\n') > 50 or content.count('\\n') > 50:
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risk += 0.2
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risk += 0.1 if is_system_request else 0.3
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# Excessive newlines or formatting - more lenient for system content
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newline_threshold = 200 if is_system_request else 50
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if content.count('\n') > newline_threshold or content.count('\\n') > newline_threshold:
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risk += 0.1 if is_system_request else 0.2
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return risk
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def _is_system_request(self, messages: List[Dict[str, str]]) -> bool:
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"""Determine if this is a system/RAG request"""
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if not messages:
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return False
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# Check for system messages
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for message in messages:
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if message.get("role") == "system":
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return True
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# Check message content for RAG indicators
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for message in messages:
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content = message.get("content", "")
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if ("document:" in content.lower() or
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"context:" in content.lower() or
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"source:" in content.lower() or
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"retrieved:" in content.lower() or
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"citation:" in content.lower() or
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"reference:" in content.lower()):
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return True
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return False
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def create_audit_log(
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self,
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user_id: str,
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@@ -195,11 +239,11 @@ class SecurityManager:
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audit_hash = self._create_audit_hash(audit_entry)
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audit_entry["audit_hash"] = audit_hash
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# Log based on risk level
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# Log based on risk level (never block, only log)
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if risk_score >= settings.API_SECURITY_RISK_THRESHOLD:
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logger.error(f"HIGH RISK LLM REQUEST BLOCKED: {json.dumps(audit_entry)}")
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logger.warning(f"HIGH RISK LLM REQUEST DETECTED (NOT BLOCKED): {json.dumps(audit_entry)}")
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elif risk_score >= settings.API_SECURITY_WARNING_THRESHOLD:
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logger.warning(f"MEDIUM RISK LLM REQUEST: {json.dumps(audit_entry)}")
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logger.info(f"MEDIUM RISK LLM REQUEST: {json.dumps(audit_entry)}")
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else:
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logger.info(f"LLM REQUEST AUDIT: user={user_id}, model={model}, risk={risk_score:.3f}")
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@@ -16,6 +16,7 @@ from .models import (
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ModelInfo, ProviderStatus, LLMMetrics
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)
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from .config import config_manager, ProviderConfig
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from ...core.config import settings
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from .security import security_manager
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from .resilience import ResilienceManagerFactory
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from .metrics import metrics_collector
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@@ -149,19 +150,17 @@ class LLMService:
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if not request.messages:
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raise ValidationError("Messages cannot be empty", field="messages")
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# Security validation
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# Chatbot and RAG system requests should have relaxed security validation
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is_system_request = (
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request.user_id == "rag_system" or
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request.user_id == "chatbot_user" or
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str(request.user_id).startswith("chatbot_")
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)
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# Security validation (only if enabled)
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messages_dict = [{"role": msg.role, "content": msg.content} for msg in request.messages]
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is_safe, risk_score, detected_patterns = security_manager.validate_prompt_security(messages_dict)
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if not is_safe and not is_system_request:
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# Log security violation for regular user requests
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if settings.API_SECURITY_ENABLED:
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is_safe, risk_score, detected_patterns = security_manager.validate_prompt_security(messages_dict)
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else:
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# Security disabled - always safe
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is_safe, risk_score, detected_patterns = True, 0.0, []
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if not is_safe:
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# Log security violation
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security_manager.create_audit_log(
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user_id=request.user_id,
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api_key_id=request.api_key_id,
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@@ -171,7 +170,7 @@ class LLMService:
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risk_score=risk_score,
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detected_patterns=[p.get("pattern", "") for p in detected_patterns]
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)
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# Record blocked request
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metrics_collector.record_request(
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provider="security",
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@@ -184,18 +183,12 @@ class LLMService:
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user_id=request.user_id,
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api_key_id=request.api_key_id
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)
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raise SecurityError(
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"Request blocked due to security concerns",
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risk_score=risk_score,
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details={"detected_patterns": detected_patterns}
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)
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elif not is_safe and is_system_request:
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# For system requests (chatbot/RAG), log but don't block
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logger.info(f"System request contains security patterns (risk_score={risk_score:.2f}) but allowing due to system context")
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if detected_patterns:
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logger.info(f"Detected patterns: {[p.get('pattern', 'unknown') for p in detected_patterns]}")
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# Allow system requests regardless of security patterns
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# Get provider for model
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provider_name = self._get_provider_for_model(request.model)
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@@ -317,25 +310,20 @@ class LLMService:
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await self.initialize()
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# Security validation (same as non-streaming)
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# Chatbot and RAG system requests should have relaxed security validation
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is_system_request = (
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request.user_id == "rag_system" or
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request.user_id == "chatbot_user" or
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str(request.user_id).startswith("chatbot_")
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)
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messages_dict = [{"role": msg.role, "content": msg.content} for msg in request.messages]
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is_safe, risk_score, detected_patterns = security_manager.validate_prompt_security(messages_dict)
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if not is_safe and not is_system_request:
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if settings.API_SECURITY_ENABLED:
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is_safe, risk_score, detected_patterns = security_manager.validate_prompt_security(messages_dict)
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else:
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# Security disabled - always safe
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is_safe, risk_score, detected_patterns = True, 0.0, []
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if not is_safe:
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raise SecurityError(
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"Streaming request blocked due to security concerns",
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risk_score=risk_score,
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details={"detected_patterns": detected_patterns}
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)
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elif not is_safe and is_system_request:
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# For system requests (chatbot/RAG), log but don't block
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logger.info(f"System streaming request contains security patterns (risk_score={risk_score:.2f}) but allowing due to system context")
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# Get provider
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provider_name = self._get_provider_for_model(request.model)
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@@ -378,33 +366,22 @@ class LLMService:
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await self.initialize()
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# Security validation for embedding input
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# RAG system requests (document embedding) should use relaxed security validation
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is_rag_system = request.user_id == "rag_system"
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if not is_rag_system:
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# Apply normal security validation for user-generated embedding requests
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input_text = request.input if isinstance(request.input, str) else " ".join(request.input)
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input_text = request.input if isinstance(request.input, str) else " ".join(request.input)
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if settings.API_SECURITY_ENABLED:
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is_safe, risk_score, detected_patterns = security_manager.validate_prompt_security([
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{"role": "user", "content": input_text}
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])
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if not is_safe:
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raise SecurityError(
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"Embedding request blocked due to security concerns",
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risk_score=risk_score,
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details={"detected_patterns": detected_patterns}
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)
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else:
|
||||
# For RAG system requests, log but don't block (document content can contain legitimate text that triggers patterns)
|
||||
input_text = request.input if isinstance(request.input, str) else " ".join(request.input)
|
||||
is_safe, risk_score, detected_patterns = security_manager.validate_prompt_security([
|
||||
{"role": "user", "content": input_text}
|
||||
])
|
||||
|
||||
if detected_patterns:
|
||||
logger.info(f"RAG document embedding contains security patterns (risk_score={risk_score:.2f}) but allowing due to document context")
|
||||
|
||||
# Allow RAG system requests regardless of security patterns
|
||||
# Security disabled - always safe
|
||||
is_safe, risk_score, detected_patterns = True, 0.0, []
|
||||
|
||||
if not is_safe:
|
||||
raise SecurityError(
|
||||
"Embedding request blocked due to security concerns",
|
||||
risk_score=risk_score,
|
||||
details={"detected_patterns": detected_patterns}
|
||||
)
|
||||
|
||||
# Get provider
|
||||
provider_name = self._get_provider_for_model(request.model)
|
||||
|
||||
@@ -265,6 +265,7 @@ class ChatbotModule(BaseModule):
|
||||
|
||||
async def chat_completion(self, request: ChatRequest, user_id: str, db: Session) -> ChatResponse:
|
||||
"""Generate chat completion response"""
|
||||
logger.info("=== CHAT COMPLETION METHOD CALLED ===")
|
||||
|
||||
# Get chatbot configuration from database
|
||||
db_chatbot = db.query(DBChatbotInstance).filter(DBChatbotInstance.id == request.chatbot_id).first()
|
||||
@@ -363,10 +364,11 @@ class ChatbotModule(BaseModule):
|
||||
metadata={"error": str(e), "fallback": True}
|
||||
)
|
||||
|
||||
async def _generate_response(self, message: str, db_messages: List[DBMessage],
|
||||
async def _generate_response(self, message: str, db_messages: List[DBMessage],
|
||||
config: ChatbotConfig, context: Optional[Dict] = None, db: Session = None) -> tuple[str, Optional[List]]:
|
||||
"""Generate response using LLM with optional RAG"""
|
||||
|
||||
logger.info("=== _generate_response METHOD CALLED ===")
|
||||
|
||||
# Lazy load dependencies if not available
|
||||
await self._ensure_dependencies()
|
||||
|
||||
@@ -426,6 +428,11 @@ class ChatbotModule(BaseModule):
|
||||
logger.warning(f"RAG search traceback: {traceback.format_exc()}")
|
||||
|
||||
# Build conversation context (includes the current message from db_messages)
|
||||
logger.info(f"=== CRITICAL DEBUG ===")
|
||||
logger.info(f"rag_context length: {len(rag_context)}")
|
||||
logger.info(f"rag_context empty: {not rag_context}")
|
||||
logger.info(f"rag_context preview: {rag_context[:200] if rag_context else 'EMPTY'}")
|
||||
logger.info(f"=== END CRITICAL DEBUG ===")
|
||||
messages = self._build_conversation_messages(db_messages, config, rag_context, context)
|
||||
|
||||
# Note: Current user message is already included in db_messages from the query
|
||||
@@ -511,32 +518,38 @@ class ChatbotModule(BaseModule):
|
||||
# Return fallback if available
|
||||
return "I'm currently unable to process your request. Please try again later.", None
|
||||
|
||||
def _build_conversation_messages(self, db_messages: List[DBMessage], config: ChatbotConfig,
|
||||
def _build_conversation_messages(self, db_messages: List[DBMessage], config: ChatbotConfig,
|
||||
rag_context: str = "", context: Optional[Dict] = None) -> List[Dict]:
|
||||
"""Build messages array for LLM completion"""
|
||||
|
||||
|
||||
messages = []
|
||||
|
||||
# System prompt
|
||||
logger.info(f"DEBUG: _build_conversation_messages called. rag_context length: {len(rag_context)}")
|
||||
|
||||
# System prompt - keep it clean without RAG context
|
||||
system_prompt = config.system_prompt
|
||||
if rag_context:
|
||||
system_prompt += rag_context
|
||||
if context and context.get('additional_instructions'):
|
||||
system_prompt += f"\\n\\nAdditional instructions: {context['additional_instructions']}"
|
||||
|
||||
system_prompt += f"\n\nAdditional instructions: {context['additional_instructions']}"
|
||||
|
||||
messages.append({"role": "system", "content": system_prompt})
|
||||
|
||||
|
||||
logger.info(f"Building messages from {len(db_messages)} database messages")
|
||||
|
||||
|
||||
# Conversation history (messages are already limited by memory_length in the query)
|
||||
# Reverse to get chronological order
|
||||
# Include ALL messages - the current user message is needed for the LLM to respond!
|
||||
for idx, msg in enumerate(reversed(db_messages)):
|
||||
logger.info(f"Processing message {idx}: role={msg.role}, content_preview={msg.content[:50] if msg.content else 'None'}...")
|
||||
if msg.role in ["user", "assistant"]:
|
||||
# For user messages, prepend RAG context if available
|
||||
content = msg.content
|
||||
if msg.role == "user" and rag_context and idx == 0:
|
||||
# Add RAG context to the current user message (first in reversed order)
|
||||
content = f"Relevant information from knowledge base:\n{rag_context}\n\nQuestion: {msg.content}"
|
||||
logger.info("Added RAG context to user message")
|
||||
|
||||
messages.append({
|
||||
"role": msg.role,
|
||||
"content": msg.content
|
||||
"content": content
|
||||
})
|
||||
logger.info(f"Added message with role {msg.role} to LLM messages")
|
||||
else:
|
||||
@@ -677,9 +690,10 @@ class ChatbotModule(BaseModule):
|
||||
return router
|
||||
|
||||
# API Compatibility Methods
|
||||
async def chat(self, chatbot_config: Dict[str, Any], message: str,
|
||||
async def chat(self, chatbot_config: Dict[str, Any], message: str,
|
||||
conversation_history: List = None, user_id: str = "anonymous") -> Dict[str, Any]:
|
||||
"""Chat method for API compatibility"""
|
||||
logger.info("=== CHAT METHOD (API COMPATIBILITY) CALLED ===")
|
||||
logger.info(f"Chat method called with message: {message[:50]}... by user: {user_id}")
|
||||
|
||||
# Lazy load dependencies
|
||||
@@ -709,9 +723,20 @@ class ChatbotModule(BaseModule):
|
||||
fallback_responses=chatbot_config.get("fallback_responses", [])
|
||||
)
|
||||
|
||||
# Generate response using internal method with empty message history
|
||||
# For API compatibility, create a temporary DBMessage for the current message
|
||||
# so RAG context can be properly added
|
||||
from app.models.chatbot import ChatbotMessage as DBMessage
|
||||
|
||||
# Create a temporary user message with the current message
|
||||
temp_user_message = DBMessage(
|
||||
conversation_id="temp_conversation",
|
||||
role=MessageRole.USER.value,
|
||||
content=message
|
||||
)
|
||||
|
||||
# Generate response using internal method with the current message included
|
||||
response_content, sources = await self._generate_response(
|
||||
message, [], config, None, db
|
||||
message, [temp_user_message], config, None, db
|
||||
)
|
||||
|
||||
return {
|
||||
|
||||
Reference in New Issue
Block a user