Simple Survey Receipt Verification
Requires Python 3 and all scripts should be run from the main repository directory Also requires Jinja2 for rendering the HTML files.
Generating Tables
Generate all the tables with:
python3 generate_tables.py
This command will generate a directory tables in the main repository directory that contains the verification table and receipt subtables as pickled objects separated by day.
These will be loaded to get and verify receipts.
Note that this will generate the tables for the next 100 days and cannot be run if the tables directory already exists to avoid breaking existing receipts.
This command also generates every HTML page for each receipt. Given a receipt with the get_receipt.py script, you can find the corresponding webpage at
tables/verification/pages/{receipt}.html
The tables/receipt directory must be kept private!!
The tables/verification daily files can be shared but note that somebody may be able to identify valid receipts by brute force if they have these tables (especially the combined table)
Getting receipts
Get a receipt for right now with:
python3 get_receipt.py
This command will print out the receipt for the current hour
Again, the webpage for this receipt can be found at:
tables/verification/pages/{receipt}.html
Verifying receipts
Verify a receipt with:
python3 get_verification.py {receipt}
This will print the date and hour that the receipt is valid for or will print "Receipt not valid". This command will not be immediately necessary since receipts can be verified by the existence of a webpage.