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@ -1,4 +1,4 @@ |
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from flask import Flask, request, render_template, send_from_directory, abort, redirect, session, url_for |
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from flask import Flask, request, render_template, send_from_directory, abort, redirect, session, url_for, send_file |
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from flask_sqlalchemy import SQLAlchemy |
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from flask_limiter import Limiter |
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from flask_limiter.util import get_remote_address |
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@ -9,8 +9,10 @@ from mastodon import Mastodon |
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from datetime import date, datetime |
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from functools import wraps |
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import hashlib |
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from zipfile import ZipFile |
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import random |
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import os |
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import re |
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from config import C |
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app = Flask(__name__) |
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@ -47,6 +49,9 @@ class Paper(db.Model): |
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down_num = db.Column(db.Integer, index=True, default=0) |
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file_hash = db.Column(db.String(64)) |
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# always increment 1 for the id of a new record |
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__table_args__ = { 'sqlite_autoincrement': True } |
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def is_downloaded(self): |
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return bool(DownloadRelation.query.filter_by(paper_id=self.id, username=session.get('username')).count()) |
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@ -216,6 +221,10 @@ def upload(username): |
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return redirect('.#part2') |
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@app.route('/pastExam/test') |
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def test_download(): |
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return send_file('/tmp/id.zip', as_attachment=True, attachment_filename='name.zip') |
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@app.route('/pastExam/<pid>/download') |
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@login_required() |
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def download(pid, username): |
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@ -229,6 +238,18 @@ def download(pid, username): |
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p.down_num += 1 |
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db.session.commit() |
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if request.args.get('type') == 'zip': |
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target_file = '/tmp/%s.zip' % pid |
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if not os.path.exists(target_file): |
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ipfs_client.get(p.file_hash, target='/tmp') |
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with ZipFile(target_file, 'w') as z: |
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for fname in os.listdir(os.path.join('/tmp', p.file_hash)): |
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z.write(os.path.join('/tmp', p.file_hash, fname), fname) |
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filename = re.sub('[^\w@_()（）-]', '_', '%s_%s_共享计划_%d' %(p.course, p.teacher, p.id)) + '.zip' |
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return send_file(target_file, as_attachment=True, attachment_filename=filename) |
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return redirect(C.ipfs_base_url + p.file_hash, code=301) # 301减少不必要的请求 |
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@app.route('/pastExam/<pid>/like', methods=['POST', 'DELETE']) |
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