Assign session IDs to sessions for each client. Session data is stored at the top of the cookie, and the server signs it in encrypted mode.For this encryption, the Flask application requires a defined SECRETKEY. Related course: Python Flask: Create Web Apps with Flask. Session Session object. May 10, 2018 How to set secret key for Flask-Session. Add the app.secretkey = 'SECRET KEY' line to my. Code from running when you are not running the Python file as a. How to set environment variables for your web apps (for SECRETKEY etc) Many deployment guides suggest you store configuration information that's likely to. You can just generate keys of your desired length the python way: And then you can just call it with your desired length key = generatekey(40). You can specify what alphabet you want to use, for example using only string.asciilowercase for key consisting of only lowercase letters etc. CSRF Protection — Flask-WTF 0.13 flask generate a secret key Python Adventures. Flask – 生成 secret key – 不要说话的博客 – 博客频道 – CSDN.NET 总结 1.什么是SECRETKEY. 其作用是： Flask（以及相关的扩展extension）需要进行加密.
| #!/usr/bin/env python |
| # encoding: utf-8 |
| '' |
| generate_keys.py |
| Generate CSRF and Session keys, output to secret_keys.py file |
| Usage: |
| generate_keys.py [-f] |
| Outputs secret_keys.py file in current folder |
| By default, an existing secret_keys file will not be replaced. |
| Use the '-f' flag to force the new keys to be written to the file |
| '' |
| importstring |
| importos.path |
| fromoptparseimportOptionParser |
| fromrandomimportchoice |
| fromstringimportTemplate |
| # File settings |
| file_name='secret_keys.py' |
| file_path=os.path.join( |
| os.path.dirname(os.path.realpath(__file__)), file_name) |
| file_template=Template(''# CSRF- and Session keys |
| CSRF_SECRET_KEY = '$csrf_key' |
| SESSION_KEY = '$session_key' |
| '') |
| # Get options from command line |
| parser=OptionParser() |
| parser.add_option( |
| '-d', |
| '--dir', |
| dest='dir', |
| help='specify dir to output to') |
| parser.add_option( |
| '-f', |
| '--force', |
| dest='force', |
| help='force overwrite of existing secret_keys file', |
| action='store_true') |
| parser.add_option( |
| '-r', |
| '--randomness', |
| dest='randomness', |
| help='length (randomness) of generated key; default = 24', |
| default=24) |
| (options, args) =parser.parse_args() |
| defgenerate_randomkey(length): |
| ''Generate random key, given a number of characters'' |
| chars=string.letters+string.digits |
| return'.join([choice(chars) foriinrange(length)]) |
| defwrite_file(contents): |
| ifoptions.dirisnotNone: |
| file_path=os.path.join(os.path.dirname( |
| os.path.realpath(__file__)), |
| options.dir, |
| file_name) |
| withopen(file_path, 'wb') asf: |
| f.write(contents) |
| defgenerate_keyfile(csrf_key, session_key): |
| ''Generate random keys for CSRF- and session key'' |
| output=file_template.safe_substitute(dict( |
| csrf_key=csrf_key, session_key=session_key |
| )) |
| ifos.path.exists(file_path): |
| ifoptions.forceisNone: |
| print('Warning: secret_keys.py file exists. ') |
| print('Use 'generate_keys.py --force' to force overwrite.') |
| else: |
| write_file(output) |
| else: |
| write_file(output) |
| defmain(): |
| r=options.randomness |
| csrf_key=generate_randomkey(r) |
| session_key=generate_randomkey(r) |
| generate_keyfile(csrf_key, session_key) |
| if__name__'__main__': |
| main() |
Setup
Virtual Environment
Create a virtual environment that uses Python 2:
Install the dependencies from the requirements file.
Create your local settings file
Create settings.py from settings.py.template
Note: settings.py is alreay referenced in the .gitignore and multiple python files, if you want a different settings file name be sure to update the references.
Download Flask Python
Add your values to the settings file.
At a minimum, CONSUMER_KEY, SHARED_SECRET, and secret_key need to be input by the developer. The secret_key is used by Flask, but the CONSUMER_KEY and SHARED_SECRET will be used in setting up the LTI. For security purposes, it's best to have randomized keys. You can generate random keys in the command line by using os.urandom(24) and inputing the resulting values into the settings.py file:
Missing private key ios distribution regenerate free. Feb 23, 2018 I have one mac which I developed my app and regulary upload to the App Store, recently I had to format and re-install all my apps and I couldn't backup my certificates, now IOS distribution certificate shows missing private key, I generated a new certificate and a new distribution profile and installed them but I couldn't solve the problem, I. As long as you still have access to the mac which was used to generate the original distribution certificate it's very simple. Just use that mac's Keychain Access application to export both the certificate and the private key. Select both using shift or command and right click to export to a.p12 file.
Run a Development Server
Here's how you run the flask app from the terminal:
Open in a Browser
Your running server will be visible at http://127.0.0.1:5000
Install LTI in Canvas
- Have the XML, consumer key, and secret ready.
- You can use the XML Config Builder to build XML.
- Navigate to the course that you would like the LTI to be added to. Click Settings in the course navigation bar. Then, select the Apps tab. Near the tabs on the right side, click 'View App Configurations'. It should lead to a page that lists what LTIs are inside the course. Click the button near the tabs that reads '+ App'.
- A modal should come up that allows you to customize how the app gets added. Change the configuration in the Configuration Type dropdown menu to 'By URL' or 'Paste XML' depending on how you have your LTI configured. If your LTI is publicly accessible, 'By URL' is recommended. From there, fill out the Name and Consumer Keys, and the Config URL or XML Configuration. Click Submit.
- Your LTI will appear depending on specifications in the XML. Currently, they get specified in the options tag within the extensions tag. Extensions can include these options:
- Editor Button (visible from within any wiki page editor in Canvas)
- Homework Submission (when a student is submitting content for an assignment)
- Course Navigation (link on the lefthand nav)
- Account Navigation (account-level navigation)
- User Navigation (user profile)
Note: If you're using Canvas, your version might be finicky about SSL certificates. Keep HTTP/HTTPS in mind when creating your XML and while developing your project. Some browsers will disable non-SSL LTI content until you enable it through clicking a shield in the browser bar or something similar.