* Closes#1940
* Create Scoreboard CSV export with support for custom fields
* Create Users CSV export with support for custom fields
* Create Teams CSV export with support for custom fields
* Closes#1841
* Adds update scoreboard and challenge board functions to window global
* This is a stop gap measure before we start using CTFd.js more heavily
* Properly receive non-string config values (None, bool, integers, etc) in /api/v1/config
* Closes#1928
* Fix the response schema for `PATCH /api/v1/configs/<config_key>` in error situations
Overall we weren't particularly strict before and we should try to stay a little lax so we don't break anything.
* Add a way to access the challenge plugin class from the Challenges model
* Allows templates to access the plugin class more easily
* Allows plugins to access the plugin class without having to load the class explicitly
* Closes#1879
* Makes the initial value for a dynamic challenge provided by the `initial` argument instead of the `value` argument. This makes it easier to support ctfcli. Refer to https://github.com/CTFd/ctfcli/issues/13.
* Closes#1875
* Works on #1493
* Adds a new column for Pages to specify format
* Separate out `build_html` into `build_html` and `build_markdown`
* Add config variables into pages: `ctf_name`, `ctf_description`, `ctf_start`, `ctf_end`, `ctf_freeze`
* The time variables are represented as ISO8601 timestamps
- Improved the `sqlalchemy_to_pydantic` function to accept additional schema fields on top of the SQLAlchemy model fields
- Added the solves and solved_by_me fields to the Swagger documentation (Closes#1829)
# 3.3.0 / 2020-03-26
**General**
- Don't require a team for viewing challenges if Challenge visibility is set to public
- Add a `THEME_FALLBACK` config to help develop themes. See **Themes** section for details.
**API**
- Implement a faster `/api/v1/scoreboard` endpoint in Teams Mode
- Add the `solves` item to both `/api/v1/challenges` and `/api/v1/challenges/[challenge_id]` to more easily determine how many solves a challenge has
- Add the `solved_by_me` item to both `/api/v1/challenges` and `/api/v1/challenges/[challenge_id]` to more easily determine if the current account has solved the challenge
- Prevent admins from deleting themselves through `DELETE /api/v1/users/[user_id]`
- Add length checking to some sensitive fields in the Pages and Challenges schemas
- Fix issue where `PATCH /api/v1/users[user_id]` returned a list instead of a dict
- Fix exception that occured on demoting admins through `PATCH /api/v1/users[user_id]`
- Add `team_id` to `GET /api/v1/users` to determine if a user is already in a team
- Provide a more useful error message when using an expired token
**Themes**
- Add a `THEME_FALLBACK` config to help develop themes.
- `THEME_FALLBACK` will configure CTFd to try to find missing theme files in the default built-in `core` theme.
- This makes it easier to develop themes or use incomplete themes.
- Allow for one theme to reference and inherit from another theme through approaches like `{% extends "core/page.html" %}`
- Allow for the automatic date rendering format to be overridden by specifying a `data-time-format` attribute.
- Add styling for the `<blockquote>` element.
- Change `users/private.html`, `users/public.html` to show awards before a user gets a solve
- Change `teams/private.html`, `teams/public.html` to show awards before a team gets a solve
- Change `colorHash` function to use HSL color values to avoid generating too light/dark colors
- Fix an issue where hidden users couldn't see their graphing data on their private user page (`/user`)
- Fix scoreboard table identifier to switch between User/Team depending on configured user mode
- Switch the challenges page in core to use the new API information in `/api/v1/challenges` to mark solves and display solve counts
- Switch to using Bootstrap's scss in `core/main.scss` to allow using Bootstrap variables
- Consolidate Jinja error handlers into a single function and better handle issues where error templates can't be found
**Plugins**
- Set plugin migration version after successful migrations
- Fix issue where Page URLs injected into the navbar were relative instead of absolute
**Admin Panel**
- Add User standings as well as Teams standings to the admin scoreboard when in Teams Mode
- Add a UI for adding members to a team from the team's admin page
- Add ability for admins to disable public team creation
- Link directly to users who submitted something in the submissions page if the CTF is in Teams Mode
- Fix Challenge Requirements interface in Admin Panel to not allow empty/null requirements to be added
- Fixed an issue where config times (start, end, freeze times) could not be removed
- Fix an exception that occurred when demoting an Admin user
- Adds a temporary hack for re-enabling Javascript snippets in Flag editor templates. (See #1779)
**Deployment**
- Fix boolean configs from the `config.ini` optional section
- Install `python3-dev` instead of `python-dev` in apt
- Require `pybluemonday` as pip dependency
- Remove `lxml` and `html5lib` from pip dependencies
- Bump `Jinja2` to 2.11.3
- Bump `pip-tools` to 5.4.0
**Miscellaneous**
- Rewrite the HTML santiziation feature (controlled by `HTML_SANITIZATION`) to use the `pybluemonday` library instead of `lxml`/`html5lib`
- Note that this feature is still in beta
- Cache Docker builds more by copying and installing Python dependencies before copying CTFd
- Change the default emails slightly and rework confirmation email page to make some recommendations clearer
- Use `examplectf.com` as testing/development domain instead of `ctfd.io`
- Fix issue where user's name and email would not appear in logs properly
- Add more linting by also linting with `flake8-comprehensions` and `flake8-bugbear`
- Add `.pyc` files and `__pycache__` to `.dockerignore`
