DAST Site validation - Model Layer - Backend
- overview: &2912
- parent issue: #233020
- [context](https://gitlab.com/gitlab-org/gitlab/-/issues/233020#note_402142087)
# Summary
create new model called `dast_site_token`.
```
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
----------------+--------------------------+-----------+----------+----------------------------------------+----------+--------------+-------------
id | bigint | | not null | nextval('dast_sites_id_seq'::regclass) | plain | |
project_id | bigint | | not null | | plain | |
token | text | | not null | | extended | |
url | text | | not null | | extended | |
expired_at | timestamp with time zone | | not null | | plain | |
created_at | timestamp with time zone | | not null | | plain | |
updated_at | timestamp with time zone | | not null | | plain | |
```
- `token` is a `uuidv4` and will have a uniqueness constraint
- `expired_at` is timestamp indicating when the token was used
- `url` is th eurl to be validated
<hr/>
create new model called `dast_site_validation`:
```
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
-----------------------------+--------------------------+-----------+----------+----------------------------------------+----------+--------------+-------------
id | bigint | | not null | nextval('dast_sites_id_seq'::regclass) | plain | |
project_id | bigint | | not null | | plain | |
dast_site_token_id | bigint | | not null | | plain | |
domain | text | | not null | | extended | |
validation_strategy | text | | not null | | extended | |
validation_started_at | timestamp with time zone | | | | plain | |
validation_passed_at | timestamp with time zone | | | | plain | |
validation_failed_at | timestamp with time zone | | | | plain | |
validation_last_retried_at | timestamp with time zone | | | | plain | |
created_at | timestamp with time zone | | not null | | plain | |
updated_at | timestamp with time zone | | not null | | plain | |
```
- `status` will be computed based on result of values of `validation_started_at`, `validation_passed_at` and `validation_failed_at`
- `domain` is the hostname that has been confirmed as being owned
- `validation_strategy` will determine how a `dast_site` is validated (e.g. `metadata`, `file`, `headers`, etc) and may use a different representation other than `text` e.g. `int` via `enum`
<hr/>
extend `dast_site` to include `nullable` `dast_site_validation_id`:
```patch
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
-------------------------+--------------------------+-----------+----------+----------------------------------------+----------+--------------+-------------
id | bigint | | not null | nextval('dast_sites_id_seq'::regclass) | plain | |
project_id | bigint | | not null | | plain | |
+ dast_site_validation_id | bigint | | | | plain | |
created_at | timestamp with time zone | | not null | | plain | |
updated_at | timestamp with time zone | | not null | | plain | |
url | text | | not null | | extended | |
```
- `dast_site_validation_id` is `nullable` to indicate that validation is not always necessary (e.g. `passive` scan case)
# Implementation Plan
- [x] create `dast_site_token`
- [x] create `dast_site_validation`
- [x] extend `dast_site` to have `dast_site_validation_id` (+ associations)
- [x] add computed `status` to `dast_site_validation`
issue
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