307 lines
13 KiB
Python
307 lines
13 KiB
Python
# -*- coding: utf-8 -*-
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"""文档数据脱敏系统 - Web 平台（FastAPI, 端口 8736）
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平台组负责：app.py / static / templates。
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管线逻辑来自 tmkit（splitter/extractor/detector/redactor）；若 tmkit 尚未就绪，
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自动降级为占位逻辑（TODO 标注），保证页面可用。
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"""
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import re
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import shutil
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import threading
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import time
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import uuid
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from pathlib import Path
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from typing import Optional
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from fastapi import FastAPI, File, HTTPException, UploadFile
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from fastapi.responses import FileResponse, HTMLResponse
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WORKDIR = Path(__file__).resolve().parent
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UPLOAD_ROOT = Path("/tmp/tm-uploads")
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UPLOAD_ROOT.mkdir(parents=True, exist_ok=True)
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# ---------------- tmkit 装载（可降级） ----------------
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try:
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import tmkit # noqa
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TMKIT_READY = True
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TMKIT_ERR = None
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except Exception as e: # ImportError 或子模块缺失
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tmkit = None
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TMKIT_READY = False
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TMKIT_ERR = str(e)
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def process_pdf(input_path: Path, out_path: Path, task: dict):
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"""核心处理：tmkit 就绪走真管线，否则占位逻辑。返回敏感项列表。"""
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items = []
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if TMKIT_READY:
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import fitz # PyMuPDF，tmkit 的底层依赖
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pdf_bytes = input_path.read_bytes()
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# 阶段 1：分流（native / scanned）
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task["stage"] = "页面分流"
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task["progress"] = 10
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page_types = tmkit.classify_pages(pdf_bytes) or []
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# 阶段 2+3：逐页抽取 + PII 识别
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task["stage"] = "文字抽取与敏感项识别"
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task["progress"] = 40
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detector = tmkit.default_detector()
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doc = fitz.open(stream=pdf_bytes, filetype="pdf")
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hits, items = [], []
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for i, page in enumerate(doc):
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page_no = i + 1
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words = tmkit.extract_page_words(page)
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found = detector.scan_page_words(words, page_no)
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for h in found or []:
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items.append({"type": h.get("type", "未知"),
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"text": h.get("text", ""),
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"page": h.get("page", page_no)})
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if h.get("bbox") is not None:
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hits.append({"page": h.get("page", page_no), "bbox": h["bbox"]})
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# 阶段 4：脱敏回写
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task["stage"] = "脱敏回写"
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task["progress"] = 85
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out_bytes = tmkit.redact_pdf(pdf_bytes, hits)
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out_path.write_bytes(out_bytes)
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else:
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# ---------- TODO 占位逻辑（tmkit 未就绪） ----------
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task["stage"] = "占位处理（tmkit 未就绪）"
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task["progress"] = 50
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time.sleep(1.2) # 模拟耗时，方便前端看到进度
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raw = input_path.read_bytes()
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# 用正则从原始字节里粗扫手机号样式，仅作演示
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text = raw.decode("latin-1", errors="ignore")
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for m in re.finditer(r"1[3-9]\d{9}", text):
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items.append({"type": "手机号(占位)", "text": m.group(), "page": 1})
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task["progress"] = 85
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shutil.copy(input_path, out_path)
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# ---------- 占位结束 ----------
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if not out_path.exists():
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shutil.copy(input_path, out_path)
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return items
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# ---------------- 任务表 ----------------
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TASKS: dict = {} # task_id -> task dict
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LOCK = threading.Lock()
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def _run_task(task_id: str, input_path: Path, out_path: Path):
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task = TASKS[task_id]
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try:
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items = process_pdf(input_path, out_path, task)
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with LOCK:
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task.update(status="done", stage="完成", progress=100,
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items=items, finished_at=time.time())
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except Exception as e:
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with LOCK:
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task.update(status="error", stage="失败", error=str(e))
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app = FastAPI(title="文档数据脱敏系统")
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@app.get("/api/tasks")
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def list_tasks(task_id: Optional[str] = None):
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with LOCK:
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if task_id:
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if task_id not in TASKS:
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raise HTTPException(404, "task not found")
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return TASKS[task_id]
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return {"tmkit_ready": TMKIT_READY, "tmkit_error": TMKIT_ERR,
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"tasks": list(TASKS.values())}
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@app.post("/api/process")
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async def process(file: UploadFile = File(...)):
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if not (file.filename or "").lower().endswith(".pdf"):
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raise HTTPException(400, "仅支持 PDF 文件")
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task_id = uuid.uuid4().hex[:12]
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tdir = UPLOAD_ROOT / task_id
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tdir.mkdir(parents=True, exist_ok=True)
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input_path = tdir / "input.pdf"
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out_path = tdir / "redacted.pdf"
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with open(input_path, "wb") as f:
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shutil.copyfileobj(file.file, f)
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TASKS[task_id] = {
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"task_id": task_id, "filename": file.filename, "status": "processing",
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"stage": "排队中", "progress": 5, "items": [],
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"created_at": time.time(), "dir": str(tdir),
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}
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threading.Thread(target=_run_task, args=(task_id, input_path, out_path), daemon=True).start()
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return {"task_id": task_id}
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@app.get("/download/{task_id}")
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def download(task_id: str, type: str = "redacted"):
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task = TASKS.get(task_id)
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if not task:
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raise HTTPException(404, "task not found")
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if task.get("status") != "done":
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raise HTTPException(409, "任务未完成")
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tdir = Path(task["dir"])
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src = tdir / ("redacted.pdf" if type == "redacted" else "input.pdf")
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if not src.exists():
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raise HTTPException(404, "文件不存在")
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if type == "redacted":
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name = f"{Path(task['filename']).stem}_脱敏.pdf"
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else:
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name = task["filename"]
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return FileResponse(src, filename=name)
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@app.get("/progress", response_class=HTMLResponse)
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def progress_page():
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blocks = []
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for key, label in (("backend", "管线组"), ("web", "平台组（Web）"), ("deploy", "部署组")):
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p = WORKDIR / f"PROGRESS-{key}.md"
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content = p.read_text(encoding="utf-8") if p.exists() else "> 进行中（暂无进展文件）"
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blocks.append('<details open class="prog"><summary>{}</summary>'
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'<pre>{}</pre></details>'.format(label, content.replace("&", "&").replace("<", "<")))
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return """<!doctype html><html lang="zh"><head><meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<title>开发进展看板 · 文档数据脱敏系统</title><style>
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body{font-family:-apple-system,"PingFang SC",sans-serif;margin:0;background:#f5f7fa;color:#222}
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header{background:#1f2d3d;color:#fff;padding:18px 28px;font-size:18px;font-weight:600}
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main{max-width:900px;margin:24px auto;padding:0 16px}
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details{background:#fff;border-radius:8px;margin-bottom:14px;box-shadow:0 1px 4px rgba(0,0,0,.08)}
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summary{padding:12px 16px;font-weight:600;cursor:pointer;color:#1f2d3d}
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pre{white-space:pre-wrap;margin:0;padding:4px 16px 16px;font-size:13px;line-height:1.7;color:#444}
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</style></head><body>
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<header>文档数据脱敏系统 · 开发进展看板</header>
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<main>""" + "".join(blocks) + """</main></body></html>"""
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@app.get("/", response_class=HTMLResponse)
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def index():
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return INDEX_HTML
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INDEX_HTML = """<!doctype html>
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<html lang="zh"><head><meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<title>文档数据脱敏系统</title><style>
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:root{--c:#2563eb;--bg:#f5f7fa;--card:#fff;--border:#e5e7eb;--danger:#dc2626}
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*{box-sizing:border-box}
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body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;margin:0;background:var(--bg);color:#1f2937}
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header{background:linear-gradient(135deg,#1e3a8a,#2563eb);color:#fff;padding:28px 20px;text-align:center}
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header h1{margin:0;font-size:22px}header p{margin:6px 0 0;opacity:.85;font-size:13px}
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main{max-width:860px;margin:0 auto;padding:20px 16px 60px}
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.card{background:var(--card);border-radius:10px;padding:20px;margin-bottom:18px;box-shadow:0 1px 4px rgba(0,0,0,.06)}
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#drop{border:2px dashed var(--border);border-radius:10px;padding:44px 16px;text-align:center;color:#6b7280;cursor:pointer;transition:.2s}
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#drop.over{border-color:var(--c);background:#eff6ff;color:var(--c)}
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#drop .icon{font-size:36px}
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button{background:var(--c);color:#fff;border:none;border-radius:6px;padding:10px 22px;font-size:14px;cursor:pointer}
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button:hover{opacity:.9}
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button.ghost{background:#fff;color:var(--c);border:1px solid var(--c)}
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.bar{height:8px;background:var(--border);border-radius:4px;overflow:hidden;margin:10px 0}
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.bar>i{display:block;height:100%;background:var(--c);width:0;transition:width .3s}
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table{width:100%;border-collapse:collapse;font-size:13px}
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th,td{border-bottom:1px solid var(--border);padding:8px 10px;text-align:left}
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th{background:#f9fafb;color:#6b7280;font-weight:600}
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.err{color:var(--danger)}
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.hidden{display:none}
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#statusLine{font-size:13px;color:#6b7280}
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a.dl{display:inline-block;text-decoration:none}
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.actions a{margin-right:10px}
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small.tip{color:#9ca3af}
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</style></head><body>
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<header><h1>📄 文档数据脱敏系统</h1><p>上传 PDF，自动识别并脱敏敏感信息（手机号 / 身份证 / 银行卡等）</p></header>
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<main>
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<div class="card">
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<div id="drop">
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<div class="icon">📁</div>
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<div>将 PDF 拖拽到此处，或点击选择文件</div>
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<div style="margin-top:12px"><button id="pickBtn" type="button">选择 PDF 文件</button></div>
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<input type="file" id="fileInput" accept="application/pdf,.pdf" style="display:none">
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<div id="fileName" style="margin-top:8px;font-size:13px"></div>
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</div>
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</div>
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<div class="card hidden" id="progressCard">
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<b>处理进度</b>
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<div class="bar"><i id="barFill"></i></div>
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<div id="statusLine">等待中…</div>
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<button id="cancelBtn" class="ghost" type="button" style="margin-top:8px" onclick="location.reload()">重新开始</button>
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</div>
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<div class="card hidden" id="resultCard">
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<b>识别到的敏感项（<span id="itemCount">0</span> 项）</b>
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<div style="max-height:320px;overflow:auto;margin-top:8px">
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<table><thead><tr><th>类型</th><th>原文</th><th>页码</th></tr></thead>
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<tbody id="itemBody"></tbody></table>
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</div>
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<div class="actions">
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<a class="dl" id="dlRedacted" href="#"><button type="button">⬇️ 下载脱敏后文件</button></a>
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<a class="dl" id="dlOriginal" href="#"><button class="ghost" type="button">保留原件下载</button></a>
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</div>
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<small class="tip" id="modeTip"></small>
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</div>
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</main>
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<script>
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const $=id=>document.getElementById(id);
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let file=null,taskId=null,timer=null;
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const drop=$('drop'),input=$('fileInput');
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drop.onclick=()=>input.click();
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input.onchange=()=>{if(input.files[0])setFile(input.files[0])};
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['dragover','dragenter'].forEach(e=>drop.addEventListener(e,ev=>{ev.preventDefault();drop.classList.add('over')}));
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['dragleave','drop'].forEach(e=>drop.addEventListener(e,ev=>{ev.preventDefault();drop.classList.remove('over')}));
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drop.addEventListener('drop',ev=>{const f=ev.dataTransfer.files[0];if(f)setFile(f)});
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function setFile(f){
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if(!f.name.toLowerCase().endsWith('.pdf')){alert('请上传 PDF 文件');return}
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file=f;$('fileName').textContent='已选择：'+f.name+'（'+(f.size/1024).toFixed(1)+' KB）';
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upload();
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}
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async function upload(){
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$('progressCard').classList.remove('hidden');
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$('statusLine').textContent='上传中…';$('barFill').style.width='5%';
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const fd=new FormData();fd.append('file',file);
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try{
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const r=await fetch('/api/process',{method:'POST',body:fd});
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if(!r.ok){const e=await r.json().catch(()=>({}));throw new Error(e.detail||r.status)}
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const d=await r.json();taskId=d.task_id;poll();
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}catch(err){$('statusLine').innerHTML='<span class="err">上传失败：'+err.message+'</span>'}
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}
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function poll(){
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timer=setInterval(async()=>{
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try{
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const r=await fetch('/api/tasks?task_id='+taskId);
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if(!r.ok)return;
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const t=await r.json();
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$('barFill').style.width=t.progress+'%';
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if(t.status==='processing'){$('statusLine').textContent='正在处理：'+t.stage+'（'+t.progress+'%）';return}
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clearInterval(timer);
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if(t.status==='error'){$('statusLine').innerHTML='<span class="err">处理失败：'+(t.error||'未知错误')+'</span>';return}
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$('statusLine').textContent='处理完成 ✓';showResult(t);
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}catch(e){}
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},800);
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}
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function showResult(t){
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$('progressCard').classList.add('hidden');
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$('resultCard').classList.remove('hidden');
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$('itemCount').textContent=t.items.length;
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const tb=$('itemBody');tb.innerHTML='';
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if(!t.items.length){tb.innerHTML='<tr><td colspan="3" style="color:#9ca3af">未识别到敏感项</td></tr>'}
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t.items.forEach(it=>{
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const tr=document.createElement('tr');
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tr.innerHTML='<td>'+esc(it.type)+'</td><td>'+esc(it.text)+'</td><td>'+esc(String(it.page))+'</td>';
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tb.appendChild(tr);
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});
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$('dlRedacted').href='/download/'+t.task_id+'?type=redacted';
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$('dlOriginal').href='/download/'+t.task_id+'?type=original';
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fetch('/api/tasks').then(r=>r.json()).then(d=>{
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if(!d.tmkit_ready)$('modeTip').textContent='⚠️ 当前为占位模式（tmkit 管线未就绪），结果仅供演示';
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}).catch(()=>{});
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}
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function esc(s){return String(s).replace(/&/g,'&').replace(/</g,'<')}
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</script>
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</body></html>"""
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if __name__ == "__main__":
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import uvicorn
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uvicorn.run(app, host="0.0.0.0", port=8736)
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