Commit Graph

127 Commits

Author SHA1 Message Date
Dan Ungureanu
f5b94f152f
FIX: Allow staff to reset passwords by username (#15709)
When staff visits the user profile of another user, the `email` field
in the model is empty. In this case, staff cannot send the reset email
password because nothing is passed in the `login` field.

This commit changes the behavior for staff users to allow resetting
password by username instead.
2022-01-26 10:39:58 +02:00
Dan Ungureanu
5b7bddf966
FIX: Prefer email when resetting password (#15650)
The UI used to request a password reset by username when the user was
logged in. This did not work when hide_email_already_taken site setting
was enabled, which disables the lookup-by-username functionality.

This commit also introduces a check to ensure that the parameter is an
email when hide_email_already_taken is enabled as the single allowed
type is email (no usernames are allowed).
2022-01-20 10:04:45 +02:00
Andrei Prigorshnev
16d9b2755c
DEV: rename single_sign_on classes to discourse_connect (#15332) 2022-01-06 16:28:46 +04:00
Sam
b6c3e9aa03
FEATURE: hide_email_address_taken forces use of email in forgot password form (#15362)
* FEATURE: hide_email_address_taken forces use of email in forgot password form

This strengthens this site setting which is meant to be used to harden sites
that are experiencing abuse on forgot password routes.

Previously we would only deny letting people know if forgot password worked on not
New change also bans usage of username for forgot password when enabled
2021-12-20 12:54:10 +11:00
Dan Ungureanu
fa8cd629f1
DEV: Hash tokens stored from email_tokens (#14493)
This commit adds token_hash and scopes columns to email_tokens table.
token_hash is a replacement for the token column to avoid storing email
tokens in plaintext as it can pose a security risk. The new scope column
ensures that email tokens cannot be used to perform a different action
than the one intended.

To sum up, this commit:

* Adds token_hash and scope to email_tokens

* Reuses code that schedules critical_user_email

* Refactors EmailToken.confirm and EmailToken.atomic_confirm methods

* Periodically cleans old, unconfirmed or expired email tokens
2021-11-25 09:34:39 +02:00
Osama Sayegh
b86127ad12
FEATURE: Apply rate limits per user instead of IP for trusted users (#14706)
Currently, Discourse rate limits all incoming requests by the IP address they
originate from regardless of the user making the request. This can be
frustrating if there are multiple users using Discourse simultaneously while
sharing the same IP address (e.g. employees in an office).

This commit implements a new feature to make Discourse apply rate limits by
user id rather than IP address for users at or higher than the configured trust
level (1 is the default).

For example, let's say a Discourse instance is configured to allow 200 requests
per minute per IP address, and we have 10 users at trust level 4 using
Discourse simultaneously from the same IP address. Before this feature, the 10
users could only make a total of 200 requests per minute before they got rate
limited. But with the new feature, each user is allowed to make 200 requests
per minute because the rate limits are applied on user id rather than the IP
address.

The minimum trust level for applying user-id-based rate limits can be
configured by the `skip_per_ip_rate_limit_trust_level` global setting. The
default is 1, but it can be changed by either adding the
`DISCOURSE_SKIP_PER_IP_RATE_LIMIT_TRUST_LEVEL` environment variable with the
desired value to your `app.yml`, or changing the setting's value in the
`discourse.conf` file.

Requests made with API keys are still rate limited by IP address and the
relevant global settings that control API keys rate limits.

Before this commit, Discourse's auth cookie (`_t`) was simply a 32 characters
string that Discourse used to lookup the current user from the database and the
cookie contained no additional information about the user. However, we had to
change the cookie content in this commit so we could identify the user from the
cookie without making a database query before the rate limits logic and avoid
introducing a bottleneck on busy sites.

Besides the 32 characters auth token, the cookie now includes the user id,
trust level and the cookie's generation date, and we encrypt/sign the cookie to
prevent tampering.

Internal ticket number: t54739.
2021-11-17 23:27:30 +03:00
Dan Ungureanu
f517b6997c
FEATURE: Cook drafts excerpt in user activity (#14315)
The previous excerpt was a simple truncated raw message. Starting with
this commit, the raw content of the draft is cooked and an excerpt is
extracted from it. The logic for extracting the excerpt mimics the the
`ExcerptParser` class, but does not implement all functionality, being
a much simpler implementation.

The two draft controllers have been merged into one and the /draft.json
route has been changed to /drafts.json to be consistent with the other
route names.
2021-09-14 15:18:01 +03:00
Andrei Prigorshnev
1a8c949900
UX: suspend forever time period messages (#13776)
When the Forever option is selected for suspending a user, the user is suspended for 1000 years. Without customizing the site’s text, this time period is displayed to the user in the suspension email that is sent to the user, and if the user attempts to log back into the site. Telling someone that they have been suspended for 1000 years seems likely to come across as a bad attempt at humour.

This PR special case messages when a user suspended or silenced forever.
2021-07-20 14:42:08 +04:00
Josh Soref
59097b207f
DEV: Correct typos and spelling mistakes (#12812)
Over the years we accrued many spelling mistakes in the code base. 

This PR attempts to fix spelling mistakes and typos in all areas of the code that are extremely safe to change 

- comments
- test descriptions
- other low risk areas
2021-05-21 11:43:47 +10:00
Martin Brennan
355d51afde
FEATURE: Allow using invites when DiscourseConnect SSO is enabled (#12419)
This PR allows invitations to be used when the DiscourseConnect SSO is enabled for a site (`enable_discourse_connect`) and local logins are disabled. Previously invites could not be accepted with SSO enabled simply because we did not have the code paths to handle that logic.

The invitation methods that are supported include:

* Inviting people to groups via email address
* Inviting people to topics via email address
* Using invitation links generated by the Invite Users UI in the /my/invited/pending route

The flow works like this:

1. User visits an invite URL
2. The normal invitation validations (redemptions/expiry) happen at that point
3. We store the invite key in a secure session
4. The user clicks "Accept Invitation and Continue" (see below)
5. The user is redirected to /session/sso then to the SSO provider URL then back to /session/sso_login
6. We retrieve the invite based on the invite key in secure session. We revalidate the invitation. We show an error to the user if it is not valid. An additional check here for invites with an email specified is to check the SSO email matches the invite email
7. If the invite is OK we create the user via the normal SSO methods
8. We redeem the invite and activate the user. We clear the invite key in secure session.
9. If the invite had a topic we redirect the user there, otherwise we redirect to /

Note that we decided for SSO-based invites the `must_approve_users` site setting is ignored, because the invite is a form of pre-approval, and because regular non-staff users cannot send out email invites or generally invite to the forum in this case.

Also deletes some group invite checks as per https://github.com/discourse/discourse/pull/12353
2021-03-19 10:20:10 +10:00
David Taylor
13d2a1f82c
SECURITY: Attach DiscourseConnect (SSO) nonce to current session (#12124) 2021-02-18 10:35:10 +00:00
David Taylor
7e6cb1ff2e
FIX: Correct server error for starting SSO login, and add spec (#12010)
Followup to 821bb1e8cb
2021-02-08 10:59:43 +00:00
David Taylor
821bb1e8cb
FEATURE: Rename 'Discourse SSO' to DiscourseConnect (#11978)
The 'Discourse SSO' protocol is being rebranded to DiscourseConnect. This should help to reduce confusion when 'SSO' is used in the generic sense.

This commit aims to:
- Rename `sso_` site settings. DiscourseConnect specific ones are prefixed `discourse_connect_`. Generic settings are prefixed `auth_`
- Add (server-side-only) backwards compatibility for the old setting names, with deprecation notices
- Copy `site_settings` database records to the new names
- Rename relevant translation keys
- Update relevant translations

This commit does **not** aim to:
- Rename any Ruby classes or methods. This might be done in a future commit
- Change any URLs. This would break existing integrations
- Make any changes to the protocol. This would break existing integrations
- Change any functionality. Further normalization across DiscourseConnect and other auth methods will be done separately

The risks are:
- There is no backwards compatibility for site settings on the client-side. Accessing auth-related site settings in Javascript is fairly rare, and an error on the client side would not be security-critical.
- If a plugin is monkey-patching parts of the auth process, changes to locale keys could cause broken error messages. This should also be unlikely. The old site setting names remain functional, so security-related overrides will remain working.

A follow-up commit will be made with a post-deploy migration to delete the old `site_settings` rows.
2021-02-08 10:04:33 +00:00
Martin Brennan
e58f9f7a55
DEV: Move logic for rate limiting user second factor to one place (#11941)
This moves all the rate limiting for user second factor (based on `params[:second_factor_token]` existing) to the one place, which rate limits by IP and also by username if a user is found.
2021-02-04 09:03:30 +10:00
Robin Ward
f39ae8a903
SECURITY: Rate limit MFA by login if possible (#11938)
This ensures we rate limit on logins where possible, we also normalize logins for the rate limiters centrally.
2021-02-03 10:26:28 +11:00
David Taylor
36b4712349
FIX: Logout redirect should only be /login for login_required sites (#11466)
25563357 moved the logout redirect logic from the client-side to the server-side. Unfortunately the login_required check was lost during the refactoring which meant that non-login-required sites would redirect to `/login` after redirect, and immediately restart the login process. Depending on the SSO implementation, that can make it impossible for users to log out cleanly.

This commit restores the login_required check, and prevents the potential redirect loop.
2020-12-11 09:44:16 +00:00
David Taylor
20c0da8516
FIX: Improve email validation error handling for external logins (#11307)
- Display reason for validation error when logging in via an authenticator
- Fix email validation handling for 'Discourse SSO', and add a spec

Previously, validation errors (e.g. blocked or already-taken emails) would raise a generic error with no useful information.
2020-11-23 11:06:08 +00:00
David Taylor
255633578c
DEV: Move logout redirect logic to server and add plugin hook (#11199)
This will allow authentication plugins to provide single-logout functionality by redirect users to the identity provider after logout.
2020-11-11 15:47:42 +00:00
Jarek Radosz
e00abbe1b7 DEV: Clean up S3 specs, stubs, and helpers
Extracted commonly used spec helpers into spec/support/uploads_helpers.rb, removed unused stubs and let definitions. Makes it easier to write new S3-related specs without copy and pasting setup steps from other specs.
2020-09-28 12:02:25 +01:00
Krzysztof Kotlarek
e0d9232259
FIX: use allowlist and blocklist terminology (#10209)
This is a PR of the renaming whitelist to allowlist and blacklist to the blocklist.
2020-07-27 10:23:54 +10:00
Blake Erickson
4078b22887 FIX: Handle missing provider return sso url
This commit prevents a 500 error from occurring if someone is trying to
setup their discourse instance as a sso provider and they don't pass in
a `return_sso_url` in their payload.
2020-05-12 18:16:50 -06:00
Sam Saffron
d8d54a92f1
FEATURE: tighten rate limiting rules for forgot password
1. Total 6 attempts per day per user
2. Total of 5 per unique email/login that is not found per hour
3. If an admin blocks an IP that IP can not request a reset
2020-05-08 13:30:51 +10:00
Jarek Radosz
781e3f5e10
DEV: Use response.parsed_body in specs (#9615)
Most of it was autofixed with rubocop-discourse 2.1.1.
2020-05-07 17:04:12 +02:00
Justin DiRose
5471c065cd
FIX: Missing timezone guess on email session login (#9404)
Timezone is guessed by moment.js if unset upon a normal login, but was not when
logging in via an email link. This adds logic to update a guessed
timezone upon email login so timezones don't end up blank.
2020-04-10 13:19:39 -05:00
Sam Saffron
b824898f61
FIX: respect automatic group membership when sso changes email
Previously we were only updating group membership when a user record was
first created in an SSO setting.

This corrects it so we also update it if SSO changes the email
2020-04-08 16:33:50 +10:00
Sam Saffron
0375a5ac0b
DEV: reduce logging when no external id is specified
Previously we were returning an unknown sso error and logging a message
when external id was blank. This noise is not needed.
2020-04-08 12:42:28 +10:00
Robin Ward
fe6fe324c9 FIX: Minor linting issue for future rubocops 2020-02-19 14:04:56 -05:00
Blake Erickson
965ac3567b FIX: Handle SSO Provider Parse exception
Prevent unnecessary 500 errors from appearing in the logs and return a
422 response instead.
2020-02-12 16:08:04 -07:00
Matt Marjanović
ad2aa7b52c
FEATURE: Add logout functionality to SSO Provider protocol (#8816)
This commit adds support for an optional "logout" parameter in the
payload of the /session/sso_provider endpoint.  If an SSO Consumer
adds a "logout=true" parameter to the encoded/signed "sso" payload,
then Discourse will treat the request as a logout request instead
of an authentication request.  The logout flow works something like
this:

 * User requests logout at SSO-Consumer site (e.g., clicks "Log me out!"
   on web browser).
 * SSO-Consumer site does whatever it does to destroy User's session on
   the SSO-Consumer site.
 * SSO-Consumer then redirects browser to the Discourse sso_provider
   endpoint, with a signed request bearing "logout=true" in addition
   to the usual nonce and the "return_sso_url".
 * Discourse destroys User's discourse session and redirects browser back
   to the "return_sso_url".
 * SSO-Consumer site does whatever it does --- notably, it cannot request
   SSO credentials from Discourse without the User being prompted to login
   again.
2020-02-03 12:53:14 -05:00
Martin Brennan
1014e56e80
DEV: Respond with 403 instead of 500 for disabled local login via email
Previously if local login via email was disabled because of the site setting or because SSO was enabled, we were raising a 500 error. We now raise a 403 error instead; we shouldn't raise 500 errors on purpose, instead keeping that code for unhandled errors. It doesn't make sense in the context of what we are validating either to raise a 500.
2020-01-20 16:11:58 +10:00
Martin Brennan
9c04aa593c
Fix broken admin login fro SSO enabled sites (#8737)
* When we refactored away the admin-login route we introduced a bug where admins could not log into an SSO enabled site, because of a check in the email_login route that disallowed this.
* Allow admin to get around this check.
2020-01-17 11:25:31 +10:00
Martin Brennan
66f2db4ea4 SECURITY: 2FA with U2F / TOTP 2020-01-15 11:27:12 +01:00
Martin Brennan
9e399b42b9 DEV: Remove redundant admin_login route, share with email_login 2020-01-13 12:10:07 +10:00
Martin Brennan
cb660ef952 SECURITY: Improve second factor auth logic 2020-01-10 10:45:56 +10:00
Martin Brennan
beb91e7eff
FIX: require: false for rotp gem (#8540)
The ROTP gem is only used in a very small amount of places in the app, we don't need to globally require it.

Also set the Addressable gem to not have a specific version range, as it has not been a problem yet.

Some slight refactoring of UserSecondFactor here too to use SecondFactorManager to avoid code repetition
2019-12-17 10:33:51 +10:00
Joffrey JAFFEUX
0d3d2c43a0
DEV: s/\$redis/Discourse\.redis (#8431)
This commit also adds a rubocop rule to prevent global variables.
2019-12-03 10:05:53 +01:00
Martin Brennan
afb5533581
FEATURE: Add timezone to core user_options (#8380)
* Add timezone to user_options table

* Also migrate existing timezone values from UserCustomField,
  which is where the discourse-calendar plugin is storing them

* Allow user to change their core timezone from Profile

* Auto guess & set timezone on login & invite accept & signup

* Serialize user_options.timezone for group members. this is so discourse-group-timezones can access the core user timezone, as it is being removed in discourse-calendar.

* Annotate user_option with timezone

* Validate timezone values
2019-11-25 10:49:27 +10:00
Martin Brennan
68d35b14f4 FEATURE: Webauthn authenticator management with 2FA login (Security Keys) (#8099)
Adds 2 factor authentication method via second factor security keys over [web authn](https://developer.mozilla.org/en-US/docs/Web/API/Web_Authentication_API).

Allows a user to authenticate a second factor on login, login-via-email, admin-login, and change password routes. Adds registration area within existing user second factor preferences to register multiple security keys. Supports both external (yubikey) and built-in (macOS/android fingerprint readers).
2019-10-01 19:08:41 -07:00
Osama Sayegh
525920a979
FIX: Better error when SSO fails due to blank secret (#7946)
* FIX: Better error when SSO fails due to blank secret

* Update spec/requests/session_controller_spec.rb

Co-Authored-By: Robin Ward <robin.ward@gmail.com>
2019-07-26 17:37:23 +03:00
David Taylor
e6e47f2fb2 SECURITY: Add confirmation screen when logging in via user-api OTP 2019-06-17 16:18:44 +01:00
David Taylor
52387be4a4 SECURITY: Add confirmation screen when logging in via email link 2019-06-17 16:18:37 +01:00
David Taylor
5f6f707080 Revert "Merge pull request from GHSA-hv9p-jfm4-gpr9"
This reverts commit b8340c6c8e.
2019-06-17 16:17:10 +01:00
David Taylor
b8340c6c8e
Merge pull request from GHSA-hv9p-jfm4-gpr9
* SECURITY: Add confirmation screen when logging in via email link

* SECURITY: Add confirmation screen when logging in via user-api OTP

* FIX: Correct translation key in session controller specs

* FIX: Use .email-login class for page
2019-06-17 15:59:41 +01:00
Sam Saffron
7b17eb06da FEATURE: ban any SSO attempts with invalid external id
We now treat any external_id of blank string (" " or "     " or "", etc) or a
invalid word (none, nil, blank, null) - case insensitive - as invalid.

In this case the client will see "please contact admin" the logs will explain
the reason clearly.
2019-06-11 10:04:26 +10:00
Daniel Waterworth
e219588142 DEV: Prefabrication (test optimization) (#7414)
* Introduced fab!, a helper that creates database state for a group

It's almost identical to let_it_be, except:

 1. It creates a new object for each test by default,
 2. You can disable it using PREFABRICATION=0
2019-05-07 13:12:20 +10:00
Sam Saffron
9be70a22cd DEV: introduce new API to look up dynamic site setting
This removes all uses of both `send` and `public_send` from consumers of
SiteSetting and instead introduces a `get` helper for dynamic lookup

This leads to much cleaner and safer code long term as we are always explicit
to test that a site setting is really there before sending an arbitrary
string to the class

It also removes a couple of risky stubs from the auth provider test
2019-05-07 11:00:30 +10:00
Guo Xiang Tan
24347ace10 FIX: Properly associate user_profiles background urls via upload id.
`Upload#url` is more likely and can change from time to time. When it
does changes, we don't want to have to look through multiple tables to
ensure that the URLs are all up to date. Instead, we simply associate
uploads properly to `UserProfile` so that it does not have to replicate
the URLs in the table.
2019-05-02 14:58:24 +08:00
Sam Saffron
4ea21fa2d0 DEV: use #frozen_string_literal: true on all spec
This change both speeds up specs (less strings to allocate) and helps catch
cases where methods in Discourse are mutating inputs.

Overall we will be migrating everything to use #frozen_string_literal: true
it will take a while, but this is the first and safest move in this direction
2019-04-30 10:27:42 +10:00
Daniel Waterworth
ad44243a57 Removed unused let blocks (#7446)
The bodies of these blocks were never evaluated.
2019-04-29 15:08:56 +08:00
Robin Ward
ba6d4b2a8d FIX: Better handling for toggling must_approve_users
If you turn it on now, default all users to approved since they were
previously. Also support approving a user that doesn't have a reviewable
record (it will be created first.)

This also includes a refactor to move class method calls to
`DiscourseEvent` into an initializer. Otherwise the load order of
classes makes a difference in the test environment and some settings
might be triggered and others not, randomly.
2019-04-16 15:56:35 -04:00
Penar Musaraj
fdf4145d4b
FEATURE: Delegated authentication via user api keys (#7272) 2019-04-01 13:18:53 -04:00
Sam Saffron
40ac895ef7 SECURITY: properly validate return URL for SSO
Previously carefully crafted URLs could redirect off site
2019-03-25 09:02:42 +11:00
Maja Komel
2fcbbead45 FIX: move sso provider into its own class so it doesn't interfere with sso client (#6767) 2018-12-19 10:22:10 +01:00
David Taylor
f7ce607e5d
FIX: Return 422 instead of 500 for invalid SSO signature (#6738) 2018-12-07 15:01:44 +00:00
Sam
64d9be726f the protection I placed was in the wrong path moved to /session/sso
correct previous commit
2018-11-09 17:18:01 +11:00
Sam
3ae4fcd1f7 Improve redirect avoidance for /sso paths
e6b3310577 was missing an ege case
where return url included current_hostname
2018-11-09 17:03:58 +11:00
Sam
e6b3310577 FIX: never redirect back to /sso it will cause a loop
If for any reason our return url is set to `/sso` bypass using it
for login redirect
2018-11-09 14:27:36 +11:00
Sam
aa044623bd FIX: do not create superflous sessions when logged on
In some SSO implementations we may want to issue SSO pipelines for
already logged on users

In these cases do not re-log-in a user if they are clearly logged on
2018-11-01 12:54:01 +11:00
Régis Hanol
addf6f6d17 FIX: support comma in 'sso_provider_secrets' site setting 2018-10-24 21:23:18 +02:00
Maja Komel
c104256991 FIX: SSO provider secrets - check wildcard domains last, toggle secrets visibility 2018-10-15 16:18:29 +02:00
Maja Komel
27e732a58d FEATURE: allow multiple secrets for Discourse SSO provider
This splits off the logic between SSO keys used incoming vs outgoing, it allows to far better restrict who is allowed to log in using a site.

This allows for better auditing of the SSO provider feature
2018-10-15 16:03:53 +11:00
Raul Tambre
2271918be2 FEATURE: Use S3 dualstack endpoints
Allows S3 without a CDN to serve images from dualstack domains that also support ipv6
2018-08-27 11:22:46 +10:00
Maja Komel
ec3e6a81a4 FEATURE: Second factor backup 2018-06-28 10:12:32 +02:00
Michael Brown
ae5d255f83 FIX: Reference example.com instead of somesite.com in examples
* somesite.com actually exists...
* example.com should be used in examples and is harmless to visit
2018-06-19 10:37:24 -04:00
Guo Xiang Tan
3a8f69c3d2 DEV: Assert for 200 response code to avoid changing magic helper in the future. 2018-06-07 16:11:09 +08:00
Sam
89ad2b5900 DEV: Rails 5.2 upgrade and global gem upgrade
This updates tests to use latest rails 5 practice
and updates ALL dependencies that could be updated

Performance testing shows that performance has not regressed
if anything it is marginally faster now.
2018-06-07 14:21:33 +10:00
Vinoth Kannan
d8e641cd98 FIX: avatar_url includes upload_path twice when local storage used 2018-06-06 18:27:30 +05:30
Guo Xiang Tan
7fc8a36529 DEV: Take 2 Queue jobs in tests by default.
On my machine this cuts the time taken to run our test suite
from ~11mins to ~9mins.
2018-05-31 16:23:23 +08:00
Guo Xiang Tan
56e9ff6853 Revert "DEV: Queue jobs in tests by default."
Too risky for now

This reverts commit be28154d3b.
2018-05-31 15:34:46 +08:00
Guo Xiang Tan
be28154d3b DEV: Queue jobs in tests by default. 2018-05-31 14:45:47 +08:00
OsamaSayegh
4e21a031df Remove trailing whitespace 2018-05-31 12:31:46 +10:00
OsamaSayegh
23e3a68592 REFACTOR: session controller specs to requests 2018-05-31 12:31:46 +10:00
Sam
0134e41286 FEATURE: detect when client thinks user is logged on but is not
This cleans up an error condition where UI thinks a user is logged on
but the user is not. If this happens user will be prompted to refresh.
2018-03-06 16:49:31 +11:00
Guo Xiang Tan
b16471edfb FIX: Invalid token error incorrectly displayed on email login page. 2018-02-21 15:46:53 +08:00
Guo Xiang Tan
14f3594f9f Review Changes for f4f8a293e7. 2018-02-21 14:55:49 +08:00
Jeff Wong
f4f8a293e7 FEATURE: Implement 2factor login TOTP
implemented review items.

Blocking previous codes - valid 2-factor auth tokens can only be authenticated once/30 seconds.
I played with updating the “last used” any time the token was attempted but that seemed to be overkill, and frustrating as to why a token would fail.
Translatable texts.
Move second factor logic to a helper class.
Move second factor specific controller endpoints to its own controller.
Move serialization logic for 2-factor details in admin user views.
Add a login ember component for de-duplication
Fix up code formatting
Change verbiage of google authenticator

add controller tests:
second factor controller tests
change email tests
change password tests
admin login tests

add qunit tests - password reset, preferences

fix: check for 2factor on change email controller
fix: email controller - only show second factor errors on attempt
fix: check against 'true' to enable second factor.

Add modal for explaining what 2fa with links to Google Authenticator/FreeOTP

add two factor to email signin link

rate limit if second factor token present

add rate limiter test for second factor attempts
2018-02-21 09:04:07 +08:00
Erick Guan
03b3e57a44 FEATURE: login by a link from email
Co-authored-by: tgxworld <tgx@discourse.org>
2018-02-13 16:14:39 +08:00