feat: add json-repair library as fallback for LLM response parsing

- Add json-repair>=0.30.0 to dependencies
- Add _repair_json_with_library method as final fallback in JSON parsing
- Update version to 2.0.0-beta.6

README.md

@@ -8,7 +8,7 @@
 
 <div align="center">
 
-[![Version](https://img.shields.io/badge/version-2.0.0--beta.5-blue.svg)](https://github.com/lintsinghua/DeepAudit/releases)
+[![Version](https://img.shields.io/badge/version-2.0.0--beta.6-blue.svg)](https://github.com/lintsinghua/DeepAudit/releases)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![React](https://img.shields.io/badge/React-18-61dafb.svg)](https://reactjs.org/)
 [![TypeScript](https://img.shields.io/badge/TypeScript-5.7-3178c6.svg)](https://www.typescriptlang.org/)

backend/app/services/llm/service.py

@@ -11,6 +11,13 @@ from .types import LLMConfig, LLMProvider, LLMMessage, LLMRequest, DEFAULT_MODEL
 from .factory import LLMFactory
 from app.core.config import settings
 
+# json-repair 库用于修复损坏的 JSON
+try:
+    from json_repair import repair_json
+    JSON_REPAIR_AVAILABLE = True
+except ImportError:
+    JSON_REPAIR_AVAILABLE = False
+
 logger = logging.getLogger(__name__)
 
 
@@ -458,6 +465,8 @@ Please analyze the following code:
             lambda: self._fix_truncated_json(clean_text(text)),
             # 6. 激进修复后解析
             lambda: json.loads(aggressive_fix_json(text)),
+            # 7. 使用 json-repair 库作为最终兜底方案
+            lambda: self._repair_json_with_library(text),
         ]
         
         last_error = None
@@ -574,6 +583,32 @@ Please analyze the following code:
         json_str = re.sub(r',(\s*[}\]])', r'\1', json_str)
         return json.loads(json_str)
     
+    def _repair_json_with_library(self, text: str) -> Dict[str, Any]:
+        """使用 json-repair 库修复损坏的 JSON（兜底方案）"""
+        if not JSON_REPAIR_AVAILABLE:
+            raise ValueError("json-repair library not available")
+        
+        # 先尝试提取 JSON 部分
+        start_idx = text.find('{')
+        if start_idx == -1:
+            raise ValueError("No JSON object found for repair")
+        
+        # 尝试找到最后一个 }
+        end_idx = text.rfind('}')
+        if end_idx > start_idx:
+            json_str = text[start_idx:end_idx + 1]
+        else:
+            json_str = text[start_idx:]
+        
+        # 使用 json-repair 修复
+        repaired = repair_json(json_str, return_objects=True)
+        
+        if isinstance(repaired, dict):
+            logger.info("✅ json-repair 库成功修复 JSON")
+            return repaired
+        
+        raise ValueError(f"json-repair returned unexpected type: {type(repaired)}")
+    
     def _get_default_response(self) -> Dict[str, Any]:
         """返回默认响应"""
         return {

backend/pyproject.toml

@@ -22,4 +22,5 @@ dependencies = [
     "reportlab>=4.0.0",
     "weasyprint>=66.0",
     "jinja2>=3.1.6",
+    "json-repair>=0.30.0",
 ]

backend/requirements-lock.txt

@@ -1,5 +1,11 @@
 # This file was autogenerated by uv via the following command:
 #    uv pip compile requirements.txt -o requirements-lock.txt
+aiohappyeyeballs==2.6.1
+    # via aiohttp
+aiohttp==3.13.2
+    # via litellm
+aiosignal==1.4.0
+    # via aiohttp
 alembic==1.17.2
     # via -r requirements.txt
 annotated-doc==0.0.4
@@ -9,46 +15,135 @@ annotated-types==0.7.0
 anyio==4.11.0
     # via
     #   httpx
+    #   openai
     #   starlette
     #   watchfiles
 asyncpg==0.31.0
     # via -r requirements.txt
-bcrypt==5.0.0
+attrs==25.4.0
-    # via passlib
+    # via
+    #   aiohttp
+    #   jsonschema
+    #   referencing
+bcrypt==4.3.0
+    # via
+    #   -r requirements.txt
+    #   passlib
+brotli==1.2.0
+    # via fonttools
 certifi==2025.11.12
     # via
     #   httpcore
     #   httpx
+    #   requests
 cffi==2.0.0
-    # via cryptography
+    # via
+    #   cryptography
+    #   weasyprint
+charset-normalizer==3.4.4
+    # via
+    #   reportlab
+    #   requests
 click==8.3.1
-    # via uvicorn
+    # via
+    #   litellm
+    #   typer-slim
+    #   uvicorn
 cryptography==46.0.3
     # via python-jose
+cssselect2==0.8.0
+    # via weasyprint
+distro==1.9.0
+    # via openai
+dnspython==2.8.0
+    # via email-validator
 ecdsa==0.19.1
     # via python-jose
+email-validator==2.3.0
+    # via -r requirements.txt
 fastapi==0.122.0
     # via -r requirements.txt
+fastuuid==0.14.0
+    # via litellm
+filelock==3.20.0
+    # via huggingface-hub
+fonttools==4.61.0
+    # via weasyprint
+frozenlist==1.8.0
+    # via
+    #   aiohttp
+    #   aiosignal
+fsspec==2025.12.0
+    # via huggingface-hub
+greenlet==3.3.0
+    # via -r requirements.txt
+grpcio==1.67.1
+    # via litellm
 h11==0.16.0
     # via
     #   httpcore
     #   uvicorn
+hf-xet==1.2.0
+    # via huggingface-hub
 httpcore==1.0.9
     # via httpx
 httptools==0.7.1
     # via uvicorn
 httpx==0.28.1
-    # via -r requirements.txt
+    # via
+    #   -r requirements.txt
+    #   huggingface-hub
+    #   litellm
+    #   openai
+huggingface-hub==1.2.1
+    # via tokenizers
 idna==3.11
     # via
     #   anyio
+    #   email-validator
     #   httpx
+    #   requests
+    #   yarl
+importlib-metadata==8.7.0
+    # via litellm
+jinja2==3.1.6
+    # via
+    #   -r requirements.txt
+    #   litellm
+jiter==0.12.0
+    # via openai
+json-repair==0.54.2
+    # via -r requirements.txt
+jsonschema==4.25.1
+    # via litellm
+jsonschema-specifications==2025.9.1
+    # via jsonschema
+litellm==1.80.8
+    # via -r requirements.txt
 mako==1.3.10
     # via alembic
 markupsafe==3.0.3
-    # via mako
+    # via
+    #   jinja2
+    #   mako
+multidict==6.7.0
+    # via
+    #   aiohttp
+    #   yarl
+openai==2.9.0
+    # via litellm
+packaging==25.0
+    # via huggingface-hub
 passlib==1.7.4
     # via -r requirements.txt
+pillow==12.0.0
+    # via
+    #   reportlab
+    #   weasyprint
+propcache==0.4.1
+    # via
+    #   aiohttp
+    #   yarl
 pyasn1==0.6.1
     # via
     #   python-jose
@@ -59,13 +154,20 @@ pydantic==2.12.4
     # via
     #   -r requirements.txt
     #   fastapi
+    #   litellm
+    #   openai
     #   pydantic-settings
 pydantic-core==2.41.5
     # via pydantic
 pydantic-settings==2.12.0
     # via -r requirements.txt
+pydyf==0.12.1
+    # via weasyprint
+pyphen==0.17.2
+    # via weasyprint
 python-dotenv==1.2.1
     # via
+    #   litellm
     #   pydantic-settings
     #   uvicorn
 python-jose==3.5.0
@@ -73,36 +175,90 @@ python-jose==3.5.0
 python-multipart==0.0.20
     # via -r requirements.txt
 pyyaml==6.0.3
-    # via uvicorn
+    # via
+    #   huggingface-hub
+    #   uvicorn
+referencing==0.37.0
+    # via
+    #   jsonschema
+    #   jsonschema-specifications
+regex==2025.11.3
+    # via tiktoken
+reportlab==4.4.5
+    # via -r requirements.txt
+requests==2.32.5
+    # via tiktoken
+rpds-py==0.30.0
+    # via
+    #   jsonschema
+    #   referencing
 rsa==4.9.1
     # via python-jose
+shellingham==1.5.4
+    # via huggingface-hub
 six==1.17.0
     # via ecdsa
 sniffio==1.3.1
-    # via anyio
+    # via
+    #   anyio
+    #   openai
 sqlalchemy==2.0.44
     # via
     #   -r requirements.txt
     #   alembic
 starlette==0.50.0
     # via fastapi
+tiktoken==0.12.0
+    # via litellm
+tinycss2==1.5.1
+    # via
+    #   cssselect2
+    #   weasyprint
+tinyhtml5==2.0.0
+    # via weasyprint
+tokenizers==0.22.1
+    # via litellm
+tqdm==4.67.1
+    # via
+    #   huggingface-hub
+    #   openai
+typer-slim==0.20.0
+    # via huggingface-hub
 typing-extensions==4.15.0
     # via
     #   alembic
     #   fastapi
+    #   huggingface-hub
+    #   openai
     #   pydantic
     #   pydantic-core
     #   sqlalchemy
+    #   typer-slim
     #   typing-inspection
 typing-inspection==0.4.2
     # via
     #   pydantic
     #   pydantic-settings
+urllib3==2.6.0
+    # via requests
 uvicorn==0.38.0
     # via -r requirements.txt
 uvloop==0.22.1
     # via uvicorn
 watchfiles==1.1.1
     # via uvicorn
+weasyprint==67.0
+    # via -r requirements.txt
+webencodings==0.5.1
+    # via
+    #   cssselect2
+    #   tinycss2
+    #   tinyhtml5
 websockets==15.0.1
     # via uvicorn
+yarl==1.22.0
+    # via aiohttp
+zipp==3.23.0
+    # via importlib-metadata
+zopfli==0.4.0
+    # via fonttools

backend/requirements.txt

@@ -16,3 +16,4 @@ litellm>=1.0.0
 reportlab>=4.0.0
 weasyprint>=66.0
 jinja2>=3.1.6
+json-repair>=0.30.0

backend/uv.lock

@@ -456,6 +456,55 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/0f/e7/aa315e6a749d9b96c2504a1ba0ba031ba2d0517e972ce22682e3fccecb09/cssselect2-0.8.0-py3-none-any.whl", hash = "sha256:46fc70ebc41ced7a32cd42d58b1884d72ade23d21e5a4eaaf022401c13f0e76e", size = 15454, upload-time = "2025-03-05T14:46:06.463Z" },
 ]
 
+[[package]]
+name = "deepaudit-backend"
+version = "0.1.0"
+source = { virtual = "." }
+dependencies = [
+    { name = "alembic" },
+    { name = "asyncpg" },
+    { name = "bcrypt" },
+    { name = "email-validator" },
+    { name = "fastapi" },
+    { name = "greenlet" },
+    { name = "httpx" },
+    { name = "jinja2" },
+    { name = "json-repair" },
+    { name = "litellm" },
+    { name = "passlib", extra = ["bcrypt"] },
+    { name = "pydantic" },
+    { name = "pydantic-settings" },
+    { name = "python-jose", extra = ["cryptography"] },
+    { name = "python-multipart" },
+    { name = "reportlab" },
+    { name = "sqlalchemy" },
+    { name = "uvicorn", extra = ["standard"] },
+    { name = "weasyprint" },
+]
+
+[package.metadata]
+requires-dist = [
+    { name = "alembic" },
+    { name = "asyncpg" },
+    { name = "bcrypt", specifier = "<5.0.0" },
+    { name = "email-validator" },
+    { name = "fastapi", specifier = ">=0.100.0" },
+    { name = "greenlet" },
+    { name = "httpx" },
+    { name = "jinja2", specifier = ">=3.1.6" },
+    { name = "json-repair", specifier = ">=0.30.0" },
+    { name = "litellm", specifier = ">=1.0.0" },
+    { name = "passlib", extras = ["bcrypt"] },
+    { name = "pydantic", specifier = ">=2.0.0" },
+    { name = "pydantic-settings" },
+    { name = "python-jose", extras = ["cryptography"] },
+    { name = "python-multipart" },
+    { name = "reportlab", specifier = ">=4.0.0" },
+    { name = "sqlalchemy", specifier = ">=2.0.0" },
+    { name = "uvicorn", extras = ["standard"] },
+    { name = "weasyprint", specifier = ">=66.0" },
+]
+
 [[package]]
 name = "distro"
 version = "1.9.0"
@@ -913,6 +962,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/97/9a/3c5391907277f0e55195550cf3fa8e293ae9ee0c00fb402fec1e38c0c82f/jiter-0.12.0-cp314-cp314t-win_arm64.whl", hash = "sha256:506c9708dd29b27288f9f8f1140c3cb0e3d8ddb045956d7757b1fa0e0f39a473", size = 185564, upload-time = "2025-11-09T20:48:50.376Z" },
 ]
 
+[[package]]
+name = "json-repair"
+version = "0.54.2"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/ff/05/9fbcd5ffab9c41455e7d80af65a90876718b8ea2fb4525e187ab11836dd4/json_repair-0.54.2.tar.gz", hash = "sha256:4b6b62ce17f1a505b220fa4aadba1fc37dc9c221544f158471efe3775620bad6", size = 38575, upload-time = "2025-11-25T19:31:22.768Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/53/3a/1b4df9adcd69fee9c9e4b439c13e8c866f2fae520054aede7030b2278be9/json_repair-0.54.2-py3-none-any.whl", hash = "sha256:be51cce5dca97e0c24ebdf61a1ede2449a8a7666012de99467bb7b0afb35179b", size = 29322, upload-time = "2025-11-25T19:31:21.492Z" },
+]
+
 [[package]]
 name = "jsonschema"
 version = "4.25.1"
@@ -2011,53 +2069,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/fa/a8/5b41e0da817d64113292ab1f8247140aac61cbf6cfd085d6a0fa77f4984f/websockets-15.0.1-py3-none-any.whl", hash = "sha256:f7a866fbc1e97b5c617ee4116daaa09b722101d4a3c170c787450ba409f9736f", size = 169743, upload-time = "2025-03-05T20:03:39.41Z" },
 ]
 
-[[package]]
-name = "deepaudit-backend"
-version = "0.1.0"
-source = { virtual = "." }
-dependencies = [
-    { name = "alembic" },
-    { name = "asyncpg" },
-    { name = "bcrypt" },
-    { name = "email-validator" },
-    { name = "fastapi" },
-    { name = "greenlet" },
-    { name = "httpx" },
-    { name = "jinja2" },
-    { name = "litellm" },
-    { name = "passlib", extra = ["bcrypt"] },
-    { name = "pydantic" },
-    { name = "pydantic-settings" },
-    { name = "python-jose", extra = ["cryptography"] },
-    { name = "python-multipart" },
-    { name = "reportlab" },
-    { name = "sqlalchemy" },
-    { name = "uvicorn", extra = ["standard"] },
-    { name = "weasyprint" },
-]
-
-[package.metadata]
-requires-dist = [
-    { name = "alembic" },
-    { name = "asyncpg" },
-    { name = "bcrypt", specifier = "<5.0.0" },
-    { name = "email-validator" },
-    { name = "fastapi", specifier = ">=0.100.0" },
-    { name = "greenlet" },
-    { name = "httpx" },
-    { name = "jinja2", specifier = ">=3.1.6" },
-    { name = "litellm", specifier = ">=1.0.0" },
-    { name = "passlib", extras = ["bcrypt"] },
-    { name = "pydantic", specifier = ">=2.0.0" },
-    { name = "pydantic-settings" },
-    { name = "python-jose", extras = ["cryptography"] },
-    { name = "python-multipart" },
-    { name = "reportlab", specifier = ">=4.0.0" },
-    { name = "sqlalchemy", specifier = ">=2.0.0" },
-    { name = "uvicorn", extras = ["standard"] },
-    { name = "weasyprint", specifier = ">=66.0" },
-]
-
 [[package]]
 name = "yarl"
 version = "1.22.0"

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "deep-audit",
-  "version": "2.0.0-beta.5",
+  "version": "2.0.0-beta.6",
   "type": "module",
   "scripts": {
     "dev": "vite",