Create app.py
Browse files
app.py
ADDED
@@ -0,0 +1,245 @@
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1 |
+
# AIPPT 服务替换方案:修订版
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2 |
+
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+
根据您提供的 PPT 结构示例和 AIPPT 基本原理文档,我发现之前提供的提示词确实需要调整,以确保生成的数据结构与 PPTist 期望的格式完全匹配。以下是修订后的 Flask 实现方案,重点调整了提示词部分:
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+
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+
## 修订后的 Flask 实现代码
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+
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+
```python
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8 |
+
from flask import Flask, request, Response, stream_with_context
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+
import requests
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+
import os
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+
import json
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+
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+
app = Flask(__name__)
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+
# 从环境变量获取配置
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16 |
+
OPENAI_API_KEY = os.environ.get('OPENAI_API_KEY')
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+
OPENAI_API_URL = os.environ.get('OPENAI_API_URL', 'https://api.openai.com/v1/chat/completions')
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+
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+
# PPT 大纲生成接口
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+
@app.route('/tools/aippt_outline', methods=['POST'])
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21 |
+
def aippt_outline():
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22 |
+
data = request.json
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23 |
+
content = data.get('content')
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24 |
+
language = data.get('language', 'zh')
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25 |
+
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+
# 构建发送给 OpenAI 的提示
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27 |
+
messages = [
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{
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"role": "system",
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+
"content": f"""您是一位专业的PPT大纲生成器。请为主题'{content}'创建一个详细的演示文稿大纲,使用{language}语言。
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31 |
+
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+
大纲应当遵循以下结构:
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+
# [主标题]
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+
## [一级章节标题]
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35 |
+
### [二级标题]
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- [要点1]
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37 |
+
- [要点2]
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38 |
+
...
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39 |
+
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+
请确保大纲层次分明,内容全面且有深度。大纲应当包含3-6个一级章节,每个章节下有2-4个二级标题,每个二级标题包含2-4个要点。"""
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}
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]
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+
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def generate():
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headers = {
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'Content-Type': 'application/json',
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'Authorization': f'Bearer {OPENAI_API_KEY}'
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}
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payload = {
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'model': 'gpt-4o',
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51 |
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'messages': messages,
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52 |
+
'stream': True
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53 |
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}
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54 |
+
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55 |
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response = requests.post(
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OPENAI_API_URL,
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headers=headers,
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json=payload,
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+
stream=True
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60 |
+
)
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61 |
+
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62 |
+
for line in response.iter_lines():
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63 |
+
if line:
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64 |
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line = line.decode('utf-8')
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65 |
+
if line.startswith('data: ') and line != 'data: [DONE]':
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66 |
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try:
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67 |
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data = json.loads(line[6:])
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68 |
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if data['choices'][0]['delta'].get('content'):
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69 |
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content = data['choices'][0]['delta']['content']
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70 |
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yield content
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71 |
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except Exception as e:
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72 |
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print(f"Error parsing OpenAI response: {e}")
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73 |
+
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74 |
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return Response(stream_with_context(generate()), mimetype='text/event-stream')
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+
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76 |
+
# PPT 内容生成接口
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77 |
+
@app.route('/tools/aippt', methods=['POST'])
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78 |
+
def aippt():
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79 |
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data = request.json
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80 |
+
content = data.get('content')
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81 |
+
language = data.get('language', 'zh')
|
82 |
+
|
83 |
+
# 构建发送给 OpenAI 的提示,包含 PPTist 所需数据结构的详细说明
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84 |
+
messages = [
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85 |
+
{
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86 |
+
"role": "system",
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+
"content": f"""您是一位专业的PPT内容生成器。根据提供的大纲,生成符合AIPPT结构的JSON对象。每个幻灯片必须严格遵循以下格式,根据其类型包含适当的字段。
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88 |
+
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89 |
+
以下是幻灯片类型及其必要字段格式:
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+
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+
1. 封面页 (cover):
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+
```
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{{
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"type": "cover",
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+
"data": {{
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+
"title": "标题文本",
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+
"text": "副标题或描述文本"
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}}
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}}
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```
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+
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2. 目录页 (contents):
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```
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{{
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"type": "contents",
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"data": {{
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"items": ["目录项1", "目录项2", "目录项3", ...]
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}}
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}}
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```
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+
3. 过渡页 (transition):
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```
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{{
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"type": "transition",
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"data": {{
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"title": "章节标题",
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"text": "章节描述文本"
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+
}}
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+
}}
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```
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+
4. 内容页 (content):
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```
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{{
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"type": "content",
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+
"data": {{
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+
"title": "页面标题",
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"items": [
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+
{{
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"title": "内容项标题1",
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"text": "内容项文本1"
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}},
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{{
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"title": "内容项标题2",
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"text": "内容项文本2"
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}},
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...
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]
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}}
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}}
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```
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5. 结束页 (end):
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+
```
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{{
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+
"type": "end"
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+
}}
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```
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+
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+
请根据提供的大纲,按顺序生成以下幻灯片:
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+
1. 一个封面页,包含主题标题和简短描述
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153 |
+
2. 一个目录页,列出大纲中的所有一级章节
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154 |
+
3. 每个一级章节前添加一个过渡页
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+
4. 每个二级标题创建一个内容页,标题为二级标题名称,内容项为该标题下的要点
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5. 最后添加一个结束页
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158 |
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每个幻灯片必须是一个完整有效的JSON对象,遵循上述格式。每个内容页应有2-4个内容项。
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+
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请逐个输出每张幻灯片的JSON对象,每个对象单独成行,不要添加任何额外的文本说明。"""
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161 |
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},
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162 |
+
{
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"role": "user",
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164 |
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"content": f"根据这个大纲生成PPT内容:\n{content}"
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165 |
+
}
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166 |
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]
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167 |
+
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168 |
+
def generate():
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169 |
+
headers = {
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170 |
+
'Content-Type': 'application/json',
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171 |
+
'Authorization': f'Bearer {OPENAI_API_KEY}'
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172 |
+
}
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173 |
+
payload = {
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174 |
+
'model': 'gpt-4o',
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175 |
+
'messages': messages,
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176 |
+
'stream': True
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177 |
+
}
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178 |
+
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179 |
+
response = requests.post(
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180 |
+
OPENAI_API_URL,
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181 |
+
headers=headers,
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182 |
+
json=payload,
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183 |
+
stream=True
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184 |
+
)
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185 |
+
|
186 |
+
buffer = ""
|
187 |
+
for line in response.iter_lines():
|
188 |
+
if line:
|
189 |
+
line = line.decode('utf-8')
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190 |
+
if line.startswith('data: ') and line != 'data: [DONE]':
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191 |
+
try:
|
192 |
+
data = json.loads(line[6:])
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193 |
+
if data['choices'][0]['delta'].get('content'):
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194 |
+
buffer += data['choices'][0]['delta']['content']
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195 |
+
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196 |
+
# 尝试从缓冲区中提取完整的 JSON 对象
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197 |
+
while True:
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198 |
+
# 寻找可能的 JSON 对象开始和结束
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199 |
+
json_start = buffer.find('{')
|
200 |
+
if json_start == -1:
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201 |
+
break
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202 |
+
|
203 |
+
# 寻找匹配的结束括号(处理嵌套JSON)
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204 |
+
bracket_count = 0
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205 |
+
json_end = -1
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206 |
+
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207 |
+
for i in range(json_start, len(buffer)):
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208 |
+
if buffer[i] == '{':
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209 |
+
bracket_count += 1
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210 |
+
elif buffer[i] == '}':
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+
bracket_count -= 1
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212 |
+
if bracket_count == 0:
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+
json_end = i
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+
break
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if json_end == -1:
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# 没有找到匹配的结束括号,等待更多数据
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break
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219 |
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220 |
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json_str = buffer[json_start:json_end+1]
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221 |
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222 |
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try:
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223 |
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# 验证是否为有效的 JSON
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224 |
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slide_data = json.loads(json_str)
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225 |
+
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226 |
+
# 如果是有效的JSON且包含type和data字段(为了安全起见)
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227 |
+
if isinstance(slide_data, dict) and ('type' in slide_data or slide_data.get('type') == 'end'):
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228 |
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# 发送到客户端
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229 |
+
yield json.dumps(slide_data) + '\n'
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230 |
+
# 从缓冲区中移除已处理的部分
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231 |
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buffer = buffer[json_end+1:]
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else:
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# JSON格式不符合期望,从缓冲区删除并继续
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buffer = buffer[json_end+1:]
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+
except Exception as e:
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236 |
+
# 解析错误,可能不是完整的JSON,继续等待
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237 |
+
print(f"Error parsing JSON: {e}")
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break
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239 |
+
except Exception as e:
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240 |
+
print(f"Error parsing OpenAI response: {e}")
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241 |
+
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242 |
+
return Response(stream_with_context(generate()), mimetype='text/event-stream')
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243 |
+
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244 |
+
if __name__ == '__main__':
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+
app.run(debug=True, host='0.0.0.0', port=7860)
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