Created
July 27, 2010 19:24
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A simple GridFS server built with Flask
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| from flask import Flask, request, redirect, url_for, make_response, abort | |
| from werkzeug import secure_filename | |
| from pymongo import Connection | |
| from pymongo.objectid import ObjectId | |
| from gridfs import GridFS | |
| from gridfs.errors import NoFile | |
| ALLOWED_EXTENSIONS = set(['txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif']) | |
| DB = Connection().gridfs_server_test | |
| FS = GridFS(DB) | |
| app = Flask(__name__) | |
| def allowed_file(filename): | |
| return '.' in filename and \ | |
| filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS | |
| @app.route('/', methods=['GET', 'POST']) | |
| def upload_file(): | |
| if request.method == 'POST': | |
| file = request.files['file'] | |
| if file and allowed_file(file.filename): | |
| filename = secure_filename(file.filename) | |
| oid = FS.put(file, content_type=file.content_type, filename=filename) | |
| return redirect(url_for('serve_gridfs_file', oid=str(oid))) | |
| return ''' | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Upload new file</title> | |
| </head> | |
| <body> | |
| <h1>Upload new file</h1> | |
| <form action="" method="post" enctype="multipart/form-data"> | |
| <p><input type="file" name="file"></p> | |
| <p><input type="submit" value="Upload"></p> | |
| </form> | |
| <a href="%s">All files</a> | |
| </body> | |
| </html> | |
| ''' % url_for('list_gridfs_files') | |
| @app.route('/files') | |
| def list_gridfs_files(): | |
| files = [FS.get_last_version(file) for file in FS.list()] | |
| file_list = "\n".join(['<li><a href="%s">%s</a></li>' % \ | |
| (url_for('serve_gridfs_file', oid=str(file._id)), file.name) \ | |
| for file in files]) | |
| return ''' | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Files</title> | |
| </head> | |
| <body> | |
| <h1>Files</h1> | |
| <ul> | |
| %s | |
| </ul> | |
| <a href="%s">Upload new file</a> | |
| </body> | |
| </html> | |
| ''' % (file_list, url_for('upload_file')) | |
| @app.route('/files/<oid>') | |
| def serve_gridfs_file(oid): | |
| try: | |
| file = FS.get(ObjectId(oid)) | |
| response = make_response(file.read()) | |
| response.mimetype = file.content_type | |
| return response | |
| except NoFile: | |
| abort(404) |
@frontend.route('/files/')
def serve_gridfs_file(oid):
try:
file = FS.get(ObjectId(oid))
return Response(file, mimetype=file.content_type, direct_passthrough=True)
except NoFile:
abort(404)
true
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A more up to date example is available at https://gist.github.com/kevgathuku/51e30f08a552084b1130