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added uploading image from url

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This commit is contained in:
iou1name 2019-04-02 10:12:58 -04:00
parent c997e68791
commit 0fa57ac7a3
3 changed files with 70 additions and 25 deletions
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3
.gitignore vendored
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@ -1,5 +1,4 @@
__pycache__/ __pycache__/
*/__pycache__/
secret_key secret_key
*.db *.db
*.swp

55
fileHost.py
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@ -3,11 +3,13 @@
Simple file host using Flask. Simple file host using Flask.
""" """
import os import os
import re
import time import time
import atexit import atexit
import string import string
import secrets import secrets
import sqlite3 import sqlite3
import tempfile
import functools import functools
import threading import threading
from datetime import datetime from datetime import datetime
@ -16,12 +18,14 @@ from passlib.hash import argon2
from flask import Flask, session, request, abort, redirect, url_for, g, \ from flask import Flask, session, request, abort, redirect, url_for, g, \
render_template render_template
from werkzeug.utils import secure_filename from werkzeug.utils import secure_filename
from werkzeug.datastructures import FileStorage
from flask_paranoid import Paranoid from flask_paranoid import Paranoid
from apscheduler.schedulers.background import BackgroundScheduler from apscheduler.schedulers.background import BackgroundScheduler
import requests
app = Flask(__name__) app = Flask(__name__)
app.config['MAX_CONTENT_LENGTH'] = 128 * 1024 * 1024 app.config['MAX_CONTENT_LENGTH'] = 128 * 1024 * 1024
app.config["UPLOAD_DIR"] = "/usr/local/www/html/up" app.config["UPLOAD_DIR"] = "/var/www/html/up"
app.config["UPLOAD_URL"] = "https://steelbea.me/up/" app.config["UPLOAD_URL"] = "https://steelbea.me/up/"
app.config["DB_NAME"] = "fileHost.db" app.config["DB_NAME"] = "fileHost.db"
app.config["DB_LOCK"] = threading.Lock() app.config["DB_LOCK"] = threading.Lock()
@ -153,7 +157,7 @@ def delete_file(filename):
def login_required(url=None): def login_required(url=None):
""" """
A decorator function to protect certain endpoints by requiring the user A decorator function to protect certain endpoints by requiring the user
to either pass a valid session cookie, or pass thier username and to either pass a valid session cookie, or pass their username and
password along with the request to login. password along with the request to login.
""" """
def actual_decorator(func): def actual_decorator(func):
@ -334,10 +338,17 @@ def upload():
Saves the uploaded files and returns URLs pointing to them. Saves the uploaded files and returns URLs pointing to them.
""" """
username = session.get("username") username = session.get("username")
if not username:
username = request.form.get("user") if request.form.get("url"):
try:
f = [download_file(request.form.get("url"))]
except ValueError as e:
return e
else:
f = []
urls = [] urls = []
for file in request.files.getlist("files"): for file in request.files.getlist("files") + f:
fname = secure_filename(file.filename) fname = secure_filename(file.filename)
pre = get_rand_chars(8) pre = get_rand_chars(8)
fdir = app.config.get("UPLOAD_DIR") fdir = app.config.get("UPLOAD_DIR")
@ -397,6 +408,40 @@ def get_rand_chars(n):
return "".join(chars) return "".join(chars)
def download_file(url):
"""
Downloads the file at the given url while observing file size and
timeout limitations.
"""
timeout = 10
requests_kwargs = {
'stream': True,
'headers': {'User-Agent': "Steelbea.me LTD needs YOUR files."},
'timeout': timeout,
'verify': True
}
t = tempfile.TemporaryFile()
with requests.get(url, **requests_kwargs) as r:
size = 0
start_time = time.time()
for chunk in r.iter_content(102400):
if time.time() - start_time > timeout:
raise ValueError('timeout reached')
size += len(chunk)
if size > app.config['MAX_CONTENT_LENGTH']:
raise ValueError('response too large')
t.write(chunk)
if r.headers.get('Content-Disposition'):
fname = re.search(r'filename="(.+)"',
r.headers['content-disposition'])
else:
fname = os.path.basename(url)
t.seek(0)
f = FileStorage(stream=t, filename=fname, name='url')
return f
init() init()
atexit.register(scheduler.shutdown) atexit.register(scheduler.shutdown)
if __name__ == "__main__": if __name__ == "__main__":

23
templates/index.html
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@ -4,23 +4,24 @@
<title>Let's uploading boys!</title> <title>Let's uploading boys!</title>
</head> </head>
<body> <body>
<form method="post" enctype="multipart/form-data" action="{{ url_for('index') }}"> Hello, {{ session.username }}<br>
Hello, {{ session.username }}<br /> <a href="{{ url_for('change_password') }}">Change password</a><br>
<a href="{{ url_for('change_password') }}">Change password</a><br /> <a href="{{ url_for('logout') }}">Logout</a><br>
<a href="{{ url_for('logout') }}">Logout</a><br /> <a href="{{ url_for('manage_uploads') }}">Manage Uploads</a><br>
<a href="{{ url_for('manage_uploads') }}">Manage Uploads</a><br /> <a href="{{ url_for('gallery', username=session.username) }}">Public Gallery</a><br>
<a href="{{ url_for('gallery', username=session.username) }}">Public Gallery</a><br /> <form method="post" enctype="multipart/form-data" action="{{ url_for('index') }}">
<p>Select file to upload: <p>Select file to upload:
<p><input type="file" name="files" required multiple/><br /> <p><input type="file" name="files" multiple><br>
<input type="checkbox" name="randname"/> Generate random filename.<br /> <input type="url" name="url" placeholder="URL" size="30"><br>
<input type="checkbox" name="delflag"/> Delete this file in <input type="number" name="delnum" min="1" max="59" value="1"/> <input type="checkbox" name="randname"> Generate random filename.<br>
<input type="checkbox" name="delflag"> Delete this file in <input type="number" name="delnum" min="1" max="59" value="1">
<select name="deltype"> <select name="deltype">
<option value="minute">Minute</option> <option value="minute">Minute</option>
<option value="hour">Hour</option> <option value="hour">Hour</option>
<option value="day" selected="selected">Day</option> <option value="day" selected="selected">Day</option>
<option value="week">Week</option> <option value="week">Week</option>
</select> </select>
<p><input type="submit" value="Upload File" name="submit"/> <p><input type="submit" value="Upload File" name="submit">
</form> </form>
</body> </body>
</html> </html>