Commit graph

121 commits

Author SHA1 Message Date
Gusted
747a176048
[SECURITY] Rework long-term authentication
- This is a 'front-port' of the already existing patch on v1.21 and
v1.20, but applied on top of what Gitea has done to rework the LTA
mechanism. Forgejo will stick with the reworked mechanism by the Forgejo
Security team for the time being. The removal of legacy code (AES-GCM) has been
left out.
- The current architecture is inherently insecure, because you can
construct the 'secret' cookie value with values that are available in
the database. Thus provides zero protection when a database is
dumped/leaked.
- This patch implements a new architecture that's inspired from: [Paragonie Initiative](https://paragonie.com/blog/2015/04/secure-authentication-php-with-long-term-persistence#secure-remember-me-cookies).
- Integration testing is added to ensure the new mechanism works.
- Removes a setting, because it's not used anymore.

(cherry picked from commit e3d6622a63)
(cherry picked from commit fef1a6dac5)
(cherry picked from commit b0c5165145)
(cherry picked from commit 7ad51b9f8d)
(cherry picked from commit 64f053f383)
(cherry picked from commit f5e78e4c20)

Conflicts:
	services/auth/auth_token_test.go
	https://codeberg.org/forgejo/forgejo/pulls/2069
(cherry picked from commit f69fc23d4b)
(cherry picked from commit d955ab3ab0)
(cherry picked from commit 9220088f90)
(cherry picked from commit c73ac63696)
2024-01-28 08:19:26 +01:00
yp05327
ce0225c1b8
Forbid removing the last admin user (#28337)
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2024-01-15 06:51:43 +00:00
Lunny Xiao
70c4aad8e1
Move more functions to db.Find (#28419)
Following #28220

This PR move more functions to use `db.Find`.

---------

Co-authored-by: delvh <dev.lh@web.de>
2024-01-15 02:19:25 +00:00
wxiaoguang
f3999888c0
Refactor some legacy code and remove unused code (#28622)
1. use slices.Contains, remove Int64sContains
2. use HashEmail, remove base.EncodeMD5
3. remove BasicAuthEncode, IsLetter
2023-12-28 09:38:59 +00:00
Lunny Xiao
e7cb8da2a8
Always enable caches (#28527)
Nowadays, cache will be used on almost everywhere of Gitea and it cannot
be disabled, otherwise some features will become unaviable.

Then I think we can just remove the option for cache enable. That means
cache cannot be disabled.
But of course, we can still use cache configuration to set how should
Gitea use the cache.
2023-12-19 09:29:05 +00:00
Lunny Xiao
df1e7d0067
Use db.Find instead of writing methods for every object (#28084)
For those simple objects, it's unnecessary to write the find and count
methods again and again.
2023-11-24 03:49:41 +00:00
KN4CK3R
8557a9455b
Revert #27870 (#27917)
Now that we have #27798 we don't need the check from #27870 anymore.
With the check it's not possible to remove an inactive auth source from
the user.
2023-11-06 06:09:34 +00:00
Lunny Xiao
1bf5527eac
Refactor Find Sources and fix bug when view a user who belongs to an unactive auth source (#27798)
The steps to reproduce it.

First, create a new oauth2 source.
Then, a user login with this oauth2 source.
Disable the oauth2 source.
Visit users -> settings -> security, 500 will be displayed.
This is because this page only load active Oauth2 sources but not all
Oauth2 sources.
2023-11-03 01:41:00 +00:00
KN4CK3R
e378545f30
Filter inactive auth sources (#27870)
Fix nil access for inactive auth sources.

> Render failed, failed to render template:
user/settings/security/security, error: template error:
builtin(static):user/settings/security/accountlinks:32:20 : executing
"user/settings/security/accountlinks" at <$providerData.IconHTML>: nil
pointer evaluating oauth2.Provider.IconHTML

Code tries to access the auth source of an `ExternalLoginUser` but the
list contains only the active auth sources.
2023-11-02 01:46:26 +02:00
Lunny Xiao
cddf245c12
Replace more db.DefaultContext (#27628)
Target #27065
2023-10-15 17:46:06 +02:00
JakobDev
76a85a4ce9
Final round of db.DefaultContext refactor (#27587)
Last part of #27065
2023-10-14 08:37:24 +00:00
JakobDev
ebe803e514
Penultimate round of db.DefaultContext refactor (#27414)
Part of #27065

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2023-10-11 04:24:07 +00:00
wxiaoguang
9f8d59858a
Refactor system setting (#27000)
This PR reduces the complexity of the system setting system.

It only needs one line to introduce a new option, and the option can be
used anywhere out-of-box.

It is still high-performant (and more performant) because the config
values are cached in the config system.
2023-10-05 09:08:19 +08:00
JakobDev
cc5df26680
Even more db.DefaultContext refactor (#27352)
Part of #27065

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: delvh <dev.lh@web.de>
2023-10-03 10:30:41 +00:00
Lunny Xiao
673cf6af76
make writing main test easier (#27270)
This PR removed `unittest.MainTest` the second parameter
`TestOptions.GiteaRoot`. Now it detects the root directory by current
working directory.

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
2023-09-28 01:38:53 +00:00
JakobDev
7047df36d4
Another round of db.DefaultContext refactor (#27103)
Part of #27065

---------

Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
2023-09-25 13:17:37 +00:00
JakobDev
f91dbbba98
Next round of db.DefaultContext refactor (#27089)
Part of #27065
2023-09-16 14:39:12 +00:00
JakobDev
efecbbaca1
Fix NPE when editing OAuth2 applications (#27078)
Fixes #27072

It looks like there are some cases where `ContextUser` is not set here

---------

Co-authored-by: techknowlogick <matti@mdranta.net>
2023-09-16 09:13:26 +00:00
JakobDev
c548dde205
More refactoring of db.DefaultContext (#27083)
Next step of #27065
2023-09-15 06:13:19 +00:00
JakobDev
76659b1114
Reduce usage of db.DefaultContext (#27073)
Part of #27065

This reduces the usage of `db.DefaultContext`. I think I've got enough
files for the first PR. When this is merged, I will continue working on
this.

Considering how many files this PR affect, I hope it won't take to long
to merge, so I don't end up in the merge conflict hell.

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
2023-09-14 17:09:32 +00:00
Lunny Xiao
ebff0513db
Fix context cache bug & enable context cache for dashabord commits' authors (#26991)
Unfortunately, when a system setting hasn't been stored in the database,
it cannot be cached.
Meanwhile, this PR also uses context cache for push email avatar display
which should avoid to read user table via email address again and again.

According to my local test, this should reduce dashboard elapsed time
from 150ms -> 80ms .
2023-09-11 10:14:01 +00:00
Lunny Xiao
f20e317d6d
Improve hint when uploading a too large avatar (#26935)
Fix #26390

---------

Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Giteabot <teabot@gitea.io>
Co-authored-by: silverwind <me@silverwind.io>
2023-09-07 13:35:45 +00:00
Lunny Xiao
b9df9fa2e2
Move createrepository from module to service layer (#26927)
Repository creation depends on many models, so moving it to service
layer is better.
2023-09-06 12:08:51 +00:00
JakobDev
958d148043
Show always repo count in header (#26842)
A few pages don't load the repo count of an user/org, so it is not shown
in the header. This happens mostly on org pages, but the package
settings applies to the user page as well.

Before:
![Screenshot 2023-08-31 at 12-45-36 Gitea Git with a cup of
tea](https://github.com/go-gitea/gitea/assets/15185051/14a59998-2cf9-4771-82f4-5d1d6fcb31f4)

After:

![grafik](https://github.com/go-gitea/gitea/assets/15185051/ff055aa0-7cde-49be-9522-437bf970be1d)


Seen on #26826
Regression of #25928
2023-09-06 08:49:36 +00:00
wxiaoguang
e8aae43f56
Move web/api context related testing function into a separate package (#26859)
Just like `models/unittest`, the testing helper functions should be in a
separate package: `contexttest`

And complete the TODO:

> // TODO: move this function to other packages, because it depends on
"models" package
2023-09-01 11:26:07 +00:00
wxiaoguang
e8b990999f
Make "link-action" backend code respond correct JSON content (#26680)
Otherwise the `link-action` JS code couldn't parse the response.

Co-authored-by: Giteabot <teabot@gitea.io>
2023-08-23 17:36:57 +08:00
wxiaoguang
71d253f42e
Remove unnecessary template helper DisableGravatar (#26386)
And one "AllowedUserVisibilityModes" was missing, add it.

Co-authored-by: Giteabot <teabot@gitea.io>
2023-08-08 08:29:14 +00:00
wxiaoguang
dcd3a63128
Move web JSON functions to web context and simplify code (#26132)
The JSONRedirect/JSONOK/JSONError functions were put into "Base" context
incorrectly, it would cause abuse.

Actually, they are for "web context" only, so, move them to the correct
place.

And by the way, use them to simplify old code: +75 -196
2023-07-26 06:04:01 +00:00
silverwind
88f835192d
Replace interface{} with any (#25686)
Result of running `perl -p -i -e 's#interface\{\}#any#g' **/*` and `make fmt`.

Basically the same [as golang did](2580d0e08d).
2023-07-04 18:36:08 +00:00
wxiaoguang
4e2f1ee58d
Refactor web package and context package (#25298)
1. The "web" package shouldn't depends on "modules/context" package,
instead, let each "web context" register themselves to the "web"
package.
2. The old Init/Free doesn't make sense, so simplify it
* The ctx in "Init(ctx)" is never used, and shouldn't be used that way
* The "Free" is never called and shouldn't be called because the SSPI
instance is shared

---------

Co-authored-by: Giteabot <teabot@gitea.io>
2023-06-18 09:59:09 +02:00
zeripath
036fb7861f
Clean up WebAuthn javascript code and remove JQuery code (#22697)
There were several issues with the WebAuthn registration and testing
code and the style
was very old javascript with jquery callbacks.

This PR uses async and fetch to replace the JQuery code.

Ref #22651

Signed-off-by: Andrew Thornton <art27@cantab.net>

---------

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: silverwind <me@silverwind.io>
2023-06-06 13:29:37 +08:00
Denys Konovalov
ca35dec18b
Add ability to set multiple redirect URIs in OAuth application UI (#25072)
OAuth applications can already have multiple redirect URIs if
created/edited over API.

This change allows for setting multiple redirect URIs through the UI as
a comma-separated list (e. g.
`https://example.org/redirect,https://redirect.example.org`)

<details>
<summary>Screenshots</summary>

![Bildschirmfoto vom 2023-06-04
17-14-40](https://github.com/go-gitea/gitea/assets/47871822/2206dc32-e7e4-4953-9ecb-e098890b3f54)
![Bildschirmfoto vom 2023-06-04
17-14-50](https://github.com/go-gitea/gitea/assets/47871822/cd97c73c-9310-44ee-a83a-b927a1ef94da)

</details>

Closes #25068
2023-06-05 15:00:12 +08:00
Jack Hay
18de83b2a3
Redesign Scoped Access Tokens (#24767)
## Changes
- Adds the following high level access scopes, each with `read` and
`write` levels:
    - `activitypub`
    - `admin` (hidden if user is not a site admin)
    - `misc`
    - `notification`
    - `organization`
    - `package`
    - `issue`
    - `repository`
    - `user`
- Adds new middleware function `tokenRequiresScopes()` in addition to
`reqToken()`
  -  `tokenRequiresScopes()` is used for each high-level api section
- _if_ a scoped token is present, checks that the required scope is
included based on the section and HTTP method
  - `reqToken()` is used for individual routes
- checks that required authentication is present (but does not check
scope levels as this will already have been handled by
`tokenRequiresScopes()`
- Adds migration to convert old scoped access tokens to the new set of
scopes
- Updates the user interface for scope selection

### User interface example
<img width="903" alt="Screen Shot 2023-05-31 at 1 56 55 PM"
src="https://github.com/go-gitea/gitea/assets/23248839/654766ec-2143-4f59-9037-3b51600e32f3">
<img width="917" alt="Screen Shot 2023-05-31 at 1 56 43 PM"
src="https://github.com/go-gitea/gitea/assets/23248839/1ad64081-012c-4a73-b393-66b30352654c">

## tokenRequiresScopes  Design Decision
- `tokenRequiresScopes()` was added to more reliably cover api routes.
For an incoming request, this function uses the given scope category
(say `AccessTokenScopeCategoryOrganization`) and the HTTP method (say
`DELETE`) and verifies that any scoped tokens in use include
`delete:organization`.
- `reqToken()` is used to enforce auth for individual routes that
require it. If a scoped token is not present for a request,
`tokenRequiresScopes()` will not return an error

## TODO
- [x] Alphabetize scope categories
- [x] Change 'public repos only' to a radio button (private vs public).
Also expand this to organizations
- [X] Disable token creation if no scopes selected. Alternatively, show
warning
- [x] `reqToken()` is missing from many `POST/DELETE` routes in the api.
`tokenRequiresScopes()` only checks that a given token has the correct
scope, `reqToken()` must be used to check that a token (or some other
auth) is present.
   -  _This should be addressed in this PR_
- [x] The migration should be reviewed very carefully in order to
minimize access changes to existing user tokens.
   - _This should be addressed in this PR_
- [x] Link to api to swagger documentation, clarify what
read/write/delete levels correspond to
- [x] Review cases where more than one scope is needed as this directly
deviates from the api definition.
   - _This should be addressed in this PR_
   - For example: 
   ```go
	m.Group("/users/{username}/orgs", func() {
		m.Get("", reqToken(), org.ListUserOrgs)
		m.Get("/{org}/permissions", reqToken(), org.GetUserOrgsPermissions)
}, tokenRequiresScopes(auth_model.AccessTokenScopeCategoryUser,
auth_model.AccessTokenScopeCategoryOrganization),
context_service.UserAssignmentAPI())
   ```

## Future improvements
- [ ] Add required scopes to swagger documentation
- [ ] Redesign `reqToken()` to be opt-out rather than opt-in
- [ ] Subdivide scopes like `repository`
- [ ] Once a token is created, if it has no scopes, we should display
text instead of an empty bullet point
- [ ] If the 'public repos only' option is selected, should read
categories be selected by default

Closes #24501
Closes #24799

Co-authored-by: Jonathan Tran <jon@allspice.io>
Co-authored-by: Kyle D <kdumontnu@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>
2023-06-04 20:57:16 +02:00
HesterG
28a89e360f
Add user level action runners (#24995)
Used similar logic to organization.

<img width="1437" alt="Screen Shot 2023-05-30 at 10 18 06"
src="https://github.com/go-gitea/gitea/assets/17645053/49f3800a-44ae-4188-b1e6-91d49e3d7868">

<img width="1331" alt="Screen Shot 2023-05-30 at 10 31 18"
src="https://github.com/go-gitea/gitea/assets/17645053/221b2068-e9b9-4e34-bb4a-d390594b2f35">
2023-05-31 09:39:54 +08:00
JakobDev
85fa954a38
Improve some Forms (#24878)
Don't really know a better name for this. I've gone through some Forms
and added missing HTML attributes (mostly `maxlength`). I tried to fill
the Forms with dummy Data and see if Gitea throws a Error (e.g. maximum
length). If yes, I added the missing HTML attribute.

While working on this, I discovered that the Form to add OAuth2 Apps
just silently fails when filled with invalid data, so I fixed that too.
2023-05-26 09:42:54 +00:00
Lunny Xiao
c59a057297
Refactor rename user and rename organization (#24052)
This PR is a refactor at the beginning. And now it did 4 things.
- [x] Move renaming organizaiton and user logics into services layer and
merged as one function
- [x] Support rename a user capitalization only. For example, rename the
user from `Lunny` to `lunny`. We just need to change one table `user`
and others should not be touched.
- [x] Before this PR, some renaming were missed like `agit`
- [x] Fix bug the API reutrned from `http.StatusNoContent` to `http.StatusOK`
2023-05-21 23:13:47 +08:00
wxiaoguang
cb700aedd1
Split "modules/context.go" to separate files (#24569)
The "modules/context.go" is too large to maintain.

This PR splits it to separate files, eg: context_request.go,
context_response.go, context_serve.go

This PR will help:

1. The future refactoring for Gitea's web context (eg: simplify the context)
2. Introduce proper "range request" support
3. Introduce context function

This PR only moves code, doesn't change any logic.
2023-05-08 17:36:54 +08:00
Lunny Xiao
377a0a20f0
Merge setting.InitXXX into one function with options (#24389)
This PR will merge 3 Init functions on setting packages as 1 and
introduce an options struct.
2023-05-04 11:55:35 +08:00
wxiaoguang
a6450494c3
Fix unclear IsRepositoryExist logic (#24374)
There was only one `IsRepositoryExist` function, it did: `has && isDir`

However it's not right, and it would cause 500 error when creating a new
repository if the dir exists.

Then, it was changed to `has || isDir`, it is still incorrect, it
affects the "adopt repo" logic.

To make the logic clear:

* IsRepositoryModelOrDirExist
* IsRepositoryModelExist
2023-04-28 14:14:26 -04:00
Hester Gong
63a401ac40
Move secrets and runners settings to actions settings (#24200)
This PR moves the secrets and runners settings to actions settings on
all settings(repo,org,user,admin) levels.

After this PR, if
[ENABLED](5e7543fcf4/custom/conf/app.example.ini (L2604))
inside `app.ini` under `[actions]` is set to `false`, the "Actions" tab
(including runners management and secrets management) will not be shown.

After, the settings under actions settings for each level:

1. Admin Level
"Runners Management"
<img width="1437" alt="Screen Shot 2023-04-26 at 14 34 20"
src="https://user-images.githubusercontent.com/17645053/234489731-15822d21-38e1-4560-8bbe-69f122376abc.png">

2. User Level
"Secrets Management"
<img width="1427" alt="Screen Shot 2023-04-26 at 14 34 30"
src="https://user-images.githubusercontent.com/17645053/234489795-68c9c0cb-24f8-4f09-95c6-458ab914c313.png">

3. Repo and Organization Levels
"Runners Management" and "Secrets Management" 
   Org:
<img width="1437" alt="Screen Shot 2023-04-26 at 14 35 07"
src="https://user-images.githubusercontent.com/17645053/234489996-f3af5ebb-d354-46ca-9087-a0b586845281.png">

<img width="1433" alt="Screen Shot 2023-04-26 at 14 35 14"
src="https://user-images.githubusercontent.com/17645053/234490004-3abf8fed-81fd-4ce2-837a-935dade1793d.png">

    Repo:
<img width="1419" alt="Screen Shot 2023-04-26 at 14 34 50"
src="https://user-images.githubusercontent.com/17645053/234489904-80c11038-4b58-462c-9d0b-8b7cf70bc2b3.png">
    
<img width="1430" alt="Screen Shot 2023-04-26 at 14 34 57"
src="https://user-images.githubusercontent.com/17645053/234489918-4e8d1fe2-9bcd-4d8a-96c1-238a8088d92e.png">

It also finished these tasks :

- [x] rename routers function "runners" to "actions", and refactor
related file names
- [x] check and modify part of the runners related functions to match
their name
- [x] Fix backend check caused by fmt check

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
2023-04-27 20:08:47 -04:00
KN4CK3R
b3e849d1d6
Only delete secrets belonging to its owner (#24284) 2023-04-23 21:35:14 +08:00
wxiaoguang
70fc47a22a
Fix unclear "Owner" concept (#24233)
Some user/org pages use `Owner` variable. It's an incorrect concept
since year 2016: what is a user's owner?

Actually, new code is right: use `ContextUser`.

This PR cleans all legacy "Owner" variables.

## Screenshots for related pages and test results

All pages are as before:

### `web/org/home.go`


![image](https://user-images.githubusercontent.com/2114189/233366687-a3643025-1f78-474d-a901-deea35b72f4d.png)

### `web/user/profile.go`


![image](https://user-images.githubusercontent.com/2114189/233366812-2e5c2fbc-3f78-44e7-88c1-ec2f612c241e.png)

### `web/user/setting/profile.go`


![image](https://user-images.githubusercontent.com/2114189/233366928-7a1e52c9-b400-4379-a4be-af06a853c5fa.png)
2023-04-20 19:33:30 +02:00
techknowlogick
03591f0f95
add user rename endpoint to admin api (#22789)
this is a simple endpoint that adds the ability to rename users to the
admin API.

Note: this is not in a mergeable state. It would be better if this was
handled by a PATCH/POST to the /api/v1/admin/users/{username} endpoint
and the username is modified.

---------

Co-authored-by: Jason Song <i@wolfogre.com>
2023-03-14 03:45:21 -04:00
KN4CK3R
2173f14708
Add user webhooks (#21563)
Currently we can add webhooks for organizations but not for users. This
PR adds the latter. You can access it from the current users settings.


![grafik](https://user-images.githubusercontent.com/1666336/197391408-15dfdc23-b476-4d0c-82f7-9bc9b065988f.png)
2023-03-10 08:28:32 -06:00
Jason Song
04347eb810
Use context parameter in services/repository (#23186)
Use context parameter in `services/repository`.

And use `cache.WithCacheContext(ctx)` to generate push action history
feeds.

Fix #23160
2023-02-28 16:17:51 -06:00
zeripath
61b89747ed
Provide the ability to set password hash algorithm parameters (#22942)
This PR refactors and improves the password hashing code within gitea
and makes it possible for server administrators to set the password
hashing parameters

In addition it takes the opportunity to adjust the settings for `pbkdf2`
in order to make the hashing a little stronger.

The majority of this work was inspired by PR #14751 and I would like to
thank @boppy for their work on this.

Thanks to @gusted for the suggestion to adjust the `pbkdf2` hashing
parameters.

Close #14751

---------

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2023-02-19 15:35:20 +08:00
KN4CK3R
d987ac6bf1
Add Chef package registry (#22554)
This PR implements a [Chef registry](https://chef.io/) to manage
cookbooks. This package type was a bit complicated because Chef uses RSA
signed requests as authentication with the registry.


![grafik](https://user-images.githubusercontent.com/1666336/213747995-46819fd8-c3d6-45a2-afd4-a4c3c8505a4a.png)


![grafik](https://user-images.githubusercontent.com/1666336/213748145-d01c9e81-d4dd-41e3-a3cc-8241862c3166.png)

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2023-02-06 09:49:21 +08:00
yp05327
c07199f9ab
remove update language in ProfilePost (#22748)
Fixes https://github.com/go-gitea/gitea/issues/22703

Change language has been moved to `UpdateUserLang`

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2023-02-06 00:06:26 +08:00
KN4CK3R
df789d962b
Add Cargo package registry (#21888)
This PR implements a [Cargo registry](https://doc.rust-lang.org/cargo/)
to manage Rust packages. This package type was a little bit more
complicated because Cargo needs an additional Git repository to store
its package index.

Screenshots:

![grafik](https://user-images.githubusercontent.com/1666336/203102004-08d812ac-c066-4969-9bda-2fed818554eb.png)

![grafik](https://user-images.githubusercontent.com/1666336/203102141-d9970f14-dca6-4174-b17a-50ba1bd79087.png)

![grafik](https://user-images.githubusercontent.com/1666336/203102244-dc05743b-78b6-4d97-998e-ef76341a978f.png)

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2023-02-05 18:12:31 +08:00
zeripath
2914c5299b
Improve error report when user passes a private key (#22726)
The error reported when a user passes a private ssh key as their ssh
public key is not very nice.

This PR improves this slightly.

Ref #22693

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: delvh <dev.lh@web.de>
2023-02-02 18:25:54 +00:00