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Users

Need for users: By registering the views generated can be retrieved at a latter date.

The sharable links can be viewed by anyone with the link, however, only the registered creator of the page can edit it or promote a registered user who visited the page to edit it.

app_users=# \d+ users

Column     |       Type        | Collation | Nullable |              Default              | Storage  | Stats target | Description

---------------|-------------------|-----------|----------|-----------------------------------|----------|--------------|------------- id | integer | | not null | nextval('users_id_seq'::regclass) | plain | | name | character varying | | not null | | extended | | role | character varying | | not null | | extended | | password_hash | character varying | | | | extended | | email | character varying | | | | extended | | owned_pages | character varying | | | | extended | | visited_pages | character varying | | | | extended | |

Indexes:
"users_pkey" PRIMARY KEY, btree (id)
"users_name_key" UNIQUE CONSTRAINT, btree (name)

Class

The model handling the DB is User in mchelanglo_app/models/users.py.

Username

The display name. Visible to users owning pages that get visited.

Role

The users roles are basic, admin and a few extra cases.

  • basic can edit
    • pages they created and
    • pages they visited that then have been edited by anther user (with editor rights) to make this user an editor.
  • friend can edit pages by adding js code (loadfun) and adding <script> tags to description.*
  • trashcan is a fake-user who is editor of pages created by not logged in users (guest is not a user and is a forbidden username). Say, you created a page as guest (unregistered user) and somehow lost the PDB or PSE file and want to be able to edit it as a registered user, the site admin can give you edit rights by checking pages owned by trashcan.
  • public is a fake-user who is a visitor of all pages made public.
  • admin can edit users etc and all pages —except encrypted ones they don't know the key to.

∗) A registered user cannot insert script tags when editing for security reasons.

Password

Passwords are hashed, so if forgotten they cannot be retrieved. The site admin can however reset your password.

Email

email is required only for account problems. No ads or sale of info.

Pages_owned

Pages that can be edited.

Pages_visited

Pages that were visited.

Pages

Pages are not stored in the database, but as pickled files in user-data as the uuid.
The class is Pages in in mchelanglo_app/.

The encryption is done with an AES cipher using a SHA256 hash of the key as the AES key. As the encryption is done in CBC mode, the randomly chosen IV (kind of like salt) is stored at the front of the encrypted data as commonly done.

The table at present looks like:

>app_users=# \d+ pages
Column Type Collation Nullable Default Storage Stats target Description
id integer not null nextval('pages_index_seq'::regclass) plain
identifier text not null extended
title text extended
existant boolean true plain
edited boolean false plain
encrypted boolean false plain
timestamp timestamp without time zone not null plain
protected boolean plain 
Indexes:
"pages_pkey" PRIMARY KEY, btree (id)
"pages_uuid_key" UNIQUE CONSTRAINT, btree (identifier)

Redirects

This small table contains the names of the redirects r/nicename > data/12345678901234567890.

app_users-# \d+ redirects

Column Type Collation Nullable Default Storage Stats target Description
id integer not null nextval('redirects_id_seq'::regclass) plain
short text not null extended
long text not null extended 
Indexes:
"redirects_pkey" PRIMARY KEY, btree (id)
"redirects_long_key" UNIQUE CONSTRAINT, btree (long)
"redirects_short_key" UNIQUE CONSTRAINT, btree (short)