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Update app.py
Browse files
app.py
CHANGED
@@ -1,6 +1,6 @@
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import openai
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import gradio as gr
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import fitz
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from openai import OpenAI
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import traceback
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@@ -12,121 +12,281 @@ client = None
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pdf_text = ""
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def set_api_key(user_api_key):
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global api_key, client
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try:
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api_key = user_api_key.strip()
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if not api_key:
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return "❌ API Key 不能為空"
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client = OpenAI(api_key=api_key)
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except Exception as e:
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return f"❌
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def set_model(model_name):
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global selected_model
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def extract_pdf_text(file_path):
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try:
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doc = fitz.open(file_path)
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text = ""
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for page_num, page in enumerate(doc):
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page_text = page.get_text()
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if page_text.strip():
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text += f"\n--- 第 {page_num + 1} 頁 ---\n
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doc.close()
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return text
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except Exception as e:
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return f"❌ PDF 解析錯誤: {str(e)}"
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def generate_summary(pdf_file):
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global summary_text, pdf_text
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if not client:
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return "❌ 請先設定 API Key"
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if not pdf_file:
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return "❌ 請先上傳 PDF 文件"
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try:
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pdf_text = extract_pdf_text(pdf_file.name)
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if not pdf_text.strip():
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return "⚠️ 無法解析 PDF
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response = client.chat.completions.create(
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model=selected_model,
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messages=[
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{
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{"role": "user", "content": pdf_text_truncated}
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],
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temperature=0.3
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)
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summary_text = response.choices[0].message.content
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return summary_text
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except Exception as e:
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def ask_question(user_question):
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if not client:
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return "❌ 請先設定 API Key"
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if not summary_text and not pdf_text:
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return "❌ 請先生成 PDF 摘要"
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if not user_question.strip():
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return "❌ 請輸入問題"
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try:
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context = f"PDF 摘要:\n{summary_text}\n\n原始���容(部分):\n{pdf_text[:2000]}"
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response = client.chat.completions.create(
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model=selected_model,
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messages=[
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{
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{"role": "user", "content": user_question}
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],
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temperature=0.2
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)
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return response.choices[0].message.content
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except Exception as e:
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def clear_all():
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global summary_text, pdf_text
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summary_text = ""
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pdf_text = ""
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return "", "", ""
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with gr.Tab("🔧 設定"):
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with gr.Tab("❓ 問答"):
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if __name__ == "__main__":
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demo.launch(
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import openai
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import gradio as gr
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import fitz # PyMuPDF
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from openai import OpenAI
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import traceback
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pdf_text = ""
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def set_api_key(user_api_key):
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"""設定 OpenAI API Key 並初始化客戶端"""
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global api_key, client
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try:
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api_key = user_api_key.strip()
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if not api_key:
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return "❌ API Key 不能為空"
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if not api_key.startswith('sk-'):
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return "❌ API Key 格式錯誤,應該以 'sk-' 開頭"
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client = OpenAI(api_key=api_key)
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# 測試 API Key 是否有效
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try:
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test_response = client.chat.completions.create(
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model="gpt-3.5-turbo",
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messages=[{"role": "user", "content": "Hello"}],
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max_tokens=5
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)
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return "✅ API Key 已設定並驗證成功!可以開始使用了。"
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except Exception as e:
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if "incorrect_api_key" in str(e).lower():
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return "❌ API Key 無效,請檢查是否正確"
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elif "quota" in str(e).lower():
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return "⚠️ API Key 有效,但配額不足"
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else:
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return f"⚠️ API Key 設定成功,但測試時出現問題:{str(e)[:100]}"
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except Exception as e:
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return f"❌ 設定失敗:{str(e)}"
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def set_model(model_name):
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"""設定選擇的模型"""
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global selected_model
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if model_name:
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selected_model = model_name
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return f"✅ 模型已更新為:{model_name}"
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else:
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return "❌ 請選擇一個模型"
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def extract_pdf_text(file_path):
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"""從 PDF 文件中提取文字"""
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try:
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doc = fitz.open(file_path)
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text = ""
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for page_num, page in enumerate(doc):
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page_text = page.get_text()
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if page_text.strip():
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text += f"\n--- 第 {page_num + 1} 頁 ---\n"
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text += page_text
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doc.close()
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return text
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except Exception as e:
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return f"❌ PDF 解析錯誤: {str(e)}"
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def generate_summary(pdf_file):
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"""從 PDF 內容生成摘要"""
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global summary_text, pdf_text
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if not client:
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return "❌ 請先設定 OpenAI API Key"
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if not pdf_file:
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return "❌ 請先上傳 PDF 文件"
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try:
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pdf_text = extract_pdf_text(pdf_file.name)
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if not pdf_text.strip():
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return "⚠️ 無法解析 PDF 文字,可能為純圖片 PDF 或空白文件。"
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max_chars = 8000
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if len(pdf_text) > max_chars:
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pdf_text_truncated = pdf_text[:max_chars] + "\n\n[文本已截斷,僅顯示前 8000 字符]"
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else:
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pdf_text_truncated = pdf_text
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response = client.chat.completions.create(
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model=selected_model,
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messages=[
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{
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"role": "system",
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"content": """你是一個專業的文檔摘要助手。請將以下 PDF 內容整理為結構化的摘要:
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1. 首先提供一個簡短的總體概述
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2. 然後按照重要性列出主要重點(使用項目符號)
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3. 如果有數據或統計信息,請特別標注
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4. 如果有結論或建議,請單獨列出
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請用繁體中文回答,保持專業且易於理解的語調。"""
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},
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{"role": "user", "content": pdf_text_truncated}
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],
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temperature=0.3
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)
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summary_text = response.choices[0].message.content
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return summary_text
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except Exception as e:
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error_msg = f"❌ 摘要生成失敗: {str(e)}"
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print(f"錯誤詳情: {traceback.format_exc()}")
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return error_msg
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def ask_question(user_question):
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"""基於 PDF 內容回答問題"""
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if not client:
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return "❌ 請先設定 OpenAI API Key"
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if not summary_text and not pdf_text:
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return "❌ 請先生成 PDF 摘要"
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if not user_question.strip():
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return "❌ 請輸入問題"
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try:
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context = f"PDF 摘要:\n{summary_text}\n\n原始���容(部分):\n{pdf_text[:2000]}"
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response = client.chat.completions.create(
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model=selected_model,
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messages=[
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{
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"role": "system",
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"content": f"""你是一個專業的文檔問答助手。請基於提供的 PDF 內容回答用戶問題。
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規則:
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1. 只根據提供的文檔內容回答
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2. 如果文檔中沒有相關信息,請明確說明
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3. 引用具體的文檔內容來支持你的回答
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4. 用繁體中文回答
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5. 保持客觀和準確
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文檔內容:
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{context}"""
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},
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{"role": "user", "content": user_question}
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],
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temperature=0.2
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)
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return response.choices[0].message.content
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except Exception as e:
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error_msg = f"❌ 問答生成失敗: {str(e)}"
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print(f"錯誤詳情: {traceback.format_exc()}")
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return error_msg
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def clear_all():
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"""清除所有資料"""
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global summary_text, pdf_text
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summary_text = ""
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pdf_text = ""
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return "", "", ""
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# 創建最簡單的 Gradio 介面
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with gr.Blocks(
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title="PDF 摘要助手",
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css="""
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/* 隱藏 Gradio logo 和 footer */
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footer { display: none !important; }
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.gradio-container footer { display: none !important; }
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div[class*="footer"] { display: none !important; }
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div[class*="Footer"] { display: none !important; }
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.gr-footer { display: none !important; }
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/* 強制修復按鈕 */
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button {
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pointer-events: auto !important;
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z-index: 9999 !important;
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position: relative !important;
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cursor: pointer !important;
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}
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"""
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) as demo:
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gr.Markdown("# 📄 PDF 摘要 & 問答助手")
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with gr.Tab("🔧 設定"):
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gr.Markdown("## API Key 設定")
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api_key_input = gr.Textbox(
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label="輸入 OpenAI API Key",
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type="password",
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placeholder="請輸入您的 OpenAI API Key (sk-...)"
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)
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with gr.Row():
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api_key_btn = gr.Button("確認設定 API Key", variant="primary")
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api_key_status = gr.Textbox(
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label="API 狀態",
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interactive=False,
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value="等待設定 API Key..."
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)
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gr.Markdown("## 模型選擇")
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model_choice = gr.Radio(
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choices=["gpt-4", "gpt-4.1", "gpt-4.5"],
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label="選擇 AI 模型",
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value="gpt-4"
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)
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with gr.Row():
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model_btn = gr.Button("確認選擇模型", variant="secondary")
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model_status = gr.Textbox(
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label="當前模型",
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interactive=False,
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value="已選擇:gpt-4"
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)
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with gr.Tab("📄 PDF 處理"):
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gr.Markdown("## 上傳 PDF 文件")
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pdf_upload = gr.File(
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label="選擇 PDF 文件",
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file_types=[".pdf"]
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)
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with gr.Row():
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summary_btn = gr.Button("生成摘要", variant="primary")
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clear_btn = gr.Button("清除資料", variant="secondary")
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summary_output = gr.Textbox(
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label="PDF 摘要",
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lines=15,
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placeholder="上傳 PDF 文件並點擊「生成摘要」按鈕"
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)
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with gr.Tab("❓ 問答"):
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gr.Markdown("## AI 問答")
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question_input = gr.Textbox(
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label="請輸入您的問題",
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placeholder="例如:這份文件的主要結論是什麼?",
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lines=3
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)
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with gr.Row():
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question_btn = gr.Button("發送問題", variant="primary")
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answer_output = gr.Textbox(
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label="AI 回答",
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lines=10,
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placeholder="AI 回答將顯示在這裡"
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)
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# 事件綁定 - 使用最明確的方式
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def handle_api_key():
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return set_api_key(api_key_input.value if hasattr(api_key_input, 'value') else "")
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def handle_model():
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return set_model(model_choice.value if hasattr(model_choice, 'value') else "gpt-4")
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def handle_summary():
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return generate_summary(pdf_upload.value if hasattr(pdf_upload, 'value') else None)
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+
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272 |
+
def handle_question():
|
273 |
+
return ask_question(question_input.value if hasattr(question_input, 'value') else "")
|
274 |
+
|
275 |
+
# 綁定點擊事件
|
276 |
+
api_key_btn.click(set_api_key, inputs=[api_key_input], outputs=[api_key_status])
|
277 |
+
model_btn.click(set_model, inputs=[model_choice], outputs=[model_status])
|
278 |
+
summary_btn.click(generate_summary, inputs=[pdf_upload], outputs=[summary_output])
|
279 |
+
question_btn.click(ask_question, inputs=[question_input], outputs=[answer_output])
|
280 |
+
clear_btn.click(clear_all, inputs=[], outputs=[summary_output, question_input, answer_output])
|
281 |
+
|
282 |
+
# Enter 鍵支援
|
283 |
+
api_key_input.submit(set_api_key, inputs=[api_key_input], outputs=[api_key_status])
|
284 |
+
question_input.submit(ask_question, inputs=[question_input], outputs=[answer_output])
|
285 |
|
286 |
if __name__ == "__main__":
|
287 |
+
demo.launch(
|
288 |
+
share=False,
|
289 |
+
show_api=False,
|
290 |
+
show_error=True,
|
291 |
+
favicon_path=None
|
292 |
+
)
|