v0: stdlib-only Discourse client — categories/topics/posts + raw passthrough

Covers the MOPAC briefing/report surface (Redmine 495 Part A): category
list/create (create needs the admin-scoped key; current key 403s, typed
as ErrForbidden), topic create/list/latest/get, post create/update/get,
current-user identity probe, and a Do() JSON passthrough so unmodeled
endpoints need no client release. Key is env/constructor-only, never a
flag, never logged; errors classify via errors.Is. Fake-server unit
tests + containerized end-to-end smoke (redaction sweep included); live
reads verified against community.turnsys.com.

💘 Generated with Crush

Assisted-by: Crush:glm-5.2
This commit is contained in:
2026-08-29 06:12:22 -05:00
commit f9cf30bc72
16 changed files with 2559 additions and 0 deletions
+3
View File
@@ -0,0 +1,3 @@
bin/
.smoke/
*.env
+661
View File
@@ -0,0 +1,661 @@
GNU AFFERO GENERAL PUBLIC LICENSE
Version 3, 19 November 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU Affero General Public License is a free, copyleft license for
software and other kinds of works, specifically designed to ensure
cooperation with the community in the case of network server software.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
our General Public Licenses are intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.
Developers that use our General Public Licenses protect your rights
with two steps: (1) assert copyright on the software, and (2) offer
you this License which gives you legal permission to copy, distribute
and/or modify the software.
A secondary benefit of defending all users' freedom is that
improvements made in alternate versions of the program, if they
receive widespread use, become available for other developers to
incorporate. Many developers of free software are heartened and
encouraged by the resulting cooperation. However, in the case of
software used on network servers, this result may fail to come about.
The GNU General Public License permits making a modified version and
letting the public access it on a server without ever releasing its
source code to the public.
The GNU Affero General Public License is designed specifically to
ensure that, in such cases, the modified source code becomes available
to the community. It requires the operator of a network server to
provide the source code of the modified version running there to the
users of that server. Therefore, public use of a modified version, on
a publicly accessible server, gives the public access to the source
code of the modified version.
An older license, called the Affero General Public License and
published by Affero, was designed to accomplish similar goals. This is
a different license, not a version of the Affero GPL, but Affero has
released a new version of the Affero GPL which permits relicensing under
this license.
The precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU Affero General Public License.
"Copyright" also means copyright-like laws that apply to other kinds of
works, such as semiconductor masks.
"The Program" refers to any copyrightable work licensed under this
License. Each licensee is addressed as "you". "Licensees" and
"recipients" may be individuals or organizations.
To "modify" a work means to copy from or adapt all or part of the work
in a fashion requiring copyright permission, other than the making of an
exact copy. The resulting work is called a "modified version" of the
earlier work or a work "based on" the earlier work.
A "covered work" means either the unmodified Program or a work based
on the Program.
To "propagate" a work means to do anything with it that, without
permission, would make you directly or secondarily liable for
infringement under applicable copyright law, except executing it on a
computer or modifying a private copy. Propagation includes copying,
distribution (with or without modification), making available to the
public, and in some countries other activities as well.
To "convey" a work means any kind of propagation that enables other
parties to make or receive copies. Mere interaction with a user through
a computer network, with no transfer of a copy, is not conveying.
An interactive user interface displays "Appropriate Legal Notices"
to the extent that it includes a convenient and prominently visible
feature that (1) displays an appropriate copyright notice, and (2)
tells the user that there is no warranty for the work (except to the
extent that warranties are provided), that licensees may convey the
work under this License, and how to view a copy of this License. If
the interface presents a list of user commands or options, such as a
menu, a prominent item in the list meets this criterion.
1. Source Code.
The "source code" for a work means the preferred form of the work
for making modifications to it. "Object code" means any non-source
form of a work.
A "Standard Interface" means an interface that either is an official
standard defined by a recognized standards body, or, in the case of
interfaces specified for a particular programming language, one that
is widely used among developers working in that language.
The "System Libraries" of an executable work include anything, other
than the work as a whole, that (a) is included in the normal form of
packaging a Major Component, but which is not part of that Major
Component, and (b) serves only to enable use of the work with that
Major Component, or to implement a Standard Interface for which an
implementation is available to the public in source code form. A
"Major Component", in this context, means a major essential component
(kernel, window system, and so on) of the specific operating system
(if any) on which the executable work runs, or a compiler used to
produce the work, or an object code interpreter used to run it.
The "Corresponding Source" for a work in object code form means all
the source code needed to generate, install, and (for an executable
work) run the object code and to modify the work, including scripts to
control those activities. However, it does not include the work's
System Libraries, or general-purpose tools or generally available free
programs which are used unmodified in performing those activities but
which are not part of the work. For example, Corresponding Source
includes interface definition files associated with source files for
the work, and the source code for shared libraries and dynamically
linked subprograms that the work is specifically designed to require,
such as by intimate data communication or control flow between those
subprograms and other parts of the work.
The Corresponding Source need not include anything that users
can regenerate automatically from other parts of the Corresponding
Source.
The Corresponding Source for a work in source code form is that
same work.
2. Basic Permissions.
All rights granted under this License are granted for the term of
copyright on the Program, and are irrevocable provided the stated
conditions are met. This License explicitly affirms your unlimited
permission to run the unmodified Program. The output from running a
covered work is covered by this License only if the output, given its
content, constitutes a covered work. This License acknowledges your
rights of fair use or other equivalent, as provided by copyright law.
You may make, run and propagate covered works that you do not
convey, without conditions so long as your license otherwise remains
in force. You may convey covered works to others for the sole purpose
of having them make modifications exclusively for you, or provide you
with facilities for running those works, provided that you comply with
the terms of this License in conveying all material for which you do
not control copyright. Those thus making or running the covered works
for you must do so exclusively on your behalf, under your direction
and control, on terms that prohibit them from making any copies of
your copyrighted material outside their relationship with you.
Conveying under any other circumstances is permitted solely under
the conditions stated below. Sublicensing is not allowed; section 10
makes it unnecessary.
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
No covered work shall be deemed part of an effective technological
measure under any applicable law fulfilling obligations under article
11 of the WIPO copyright treaty adopted on 20 December 1996, or
similar laws prohibiting or restricting circumvention of such
measures.
When you convey a covered work, you waive any legal power to forbid
circumvention of technological measures to the extent such circumvention
is effected by exercising rights under this License with respect to
the covered work, and you disclaim any intention to limit operation or
modification of the work as a means of enforcing, against the work's
users, your or third parties' legal rights to forbid circumvention of
technological measures.
4. Conveying Verbatim Copies.
You may convey verbatim copies of the Program's source code as you
receive it, in any medium, provided that you conspicuously and
appropriately publish on each copy an appropriate copyright notice;
keep intact all notices stating that this License and any
non-permissive terms added in accord with section 7 apply to the code;
keep intact all notices of the absence of any warranty; and give all
recipients a copy of this License along with the Program.
You may charge any price or no price for each copy that you convey,
and you may offer support or warranty protection for a fee.
5. Conveying Modified Source Versions.
You may convey a work based on the Program, or the modifications to
produce it from the Program, in the form of source code under the
terms of section 4, provided that you also meet all of these conditions:
a) The work must carry prominent notices stating that you modified
it, and giving a relevant date.
b) The work must carry prominent notices stating that it is
released under this License and any conditions added under section
7. This requirement modifies the requirement in section 4 to
"keep intact all notices".
c) You must license the entire work, as a whole, under this
License to anyone who comes into possession of a copy. This
License will therefore apply, along with any applicable section 7
additional terms, to the whole of the work, and all its parts,
regardless of how they are packaged. This License gives no
permission to license the work in any other way, but it does not
invalidate such permission if you have separately received it.
d) If the work has interactive user interfaces, each must display
Appropriate Legal Notices; however, if the Program has interactive
interfaces that do not display Appropriate Legal Notices, your
work need not make them do so.
A compilation of a covered work with other separate and independent
works, which are not by their nature extensions of the covered work,
and which are not combined with it such as to form a larger program,
in or on a volume of a storage or distribution medium, is called an
"aggregate" if the compilation and its resulting copyright are not
used to limit the access or legal rights of the compilation's users
beyond what the individual works permit. Inclusion of a covered work
in an aggregate does not cause this License to apply to the other
parts of the aggregate.
6. Conveying Non-Source Forms.
You may convey a covered work in object code form under the terms
of sections 4 and 5, provided that you also convey the
machine-readable Corresponding Source under the terms of this License,
in one of these ways:
a) Convey the object code in, or embodied in, a physical product
(including a physical distribution medium), accompanied by the
Corresponding Source fixed on a durable physical medium
customarily used for software interchange.
b) Convey the object code in, or embodied in, a physical product
(including a physical distribution medium), accompanied by a
written offer, valid for at least three years and valid for as
long as you offer spare parts or customer support for that product
model, to give anyone who possesses the object code either (1) a
copy of the Corresponding Source for all the software in the
product that is covered by this License, on a durable physical
medium customarily used for software interchange, for a price no
more than your reasonable cost of physically performing this
conveying of source, or (2) access to copy the
Corresponding Source from a network server at no charge.
c) Convey individual copies of the object code with a copy of the
written offer to provide the Corresponding Source. This
alternative is allowed only occasionally and noncommercially, and
only if you received the object code with such an offer, in accord
with subsection 6b.
d) Convey the object code by offering access from a designated
place (gratis or for a charge), and offer equivalent access to the
Corresponding Source in the same way through the same place at no
further charge. You need not require recipients to copy the
Corresponding Source along with the object code. If the place to
copy the object code is a network server, the Corresponding Source
may be on a different server (operated by you or a third party)
that supports equivalent copying facilities, provided you maintain
clear directions next to the object code saying where to find the
Corresponding Source. Regardless of what server hosts the
Corresponding Source, you remain obligated to ensure that it is
available for as long as needed to satisfy these requirements.
e) Convey the object code using peer-to-peer transmission, provided
you inform other peers where the object code and Corresponding
Source of the work are being offered to the general public at no
charge under subsection 6d.
A separable portion of the object code, whose source code is excluded
from the Corresponding Source as a System Library, need not be
included in conveying the object code work.
A "User Product" is either (1) a "consumer product", which means any
tangible personal property which is normally used for personal, family,
or household purposes, or (2) anything designed or sold for incorporation
into a dwelling. In determining whether a product is a consumer product,
doubtful cases shall be resolved in favor of coverage. For a particular
product received by a particular user, "normally used" refers to a
typical or common use of that class of product, regardless of the status
of the particular user or of the way in which the particular user
actually uses, or expects or is expected to use, the product. A product
is a consumer product regardless of whether the product has substantial
commercial, industrial or non-consumer uses, unless such uses represent
the only significant mode of use of the product.
"Installation Information" for a User Product means any methods,
procedures, authorization keys, or other information required to install
and execute modified versions of a covered work in that User Product from
a modified version of its Corresponding Source. The information must
suffice to ensure that the continued functioning of the modified object
code is in no case prevented or interfered with solely because
modification has been made.
If you convey an object code work under this section in, or with, or
specifically for use in, a User Product, and the conveying occurs as
part of a transaction in which the right of possession and use of the
User Product is transferred to the recipient in perpetuity or for a
fixed term (regardless of how the transaction is characterized), the
Corresponding Source conveyed under this section must be accompanied
by the Installation Information. But this requirement does not apply
if neither you nor any third party retains the ability to install
modified object code on the User Product (for example, the work has
been installed in ROM).
The requirement to provide Installation Information does not include a
requirement to continue to provide support service, warranty, or updates
for a work that has been modified or installed by the recipient, or for
the User Product in which it has been modified or installed. Access to a
network may be denied when the modification itself materially and
adversely affects the operation of the network or violates the rules and
protocols for communication across the network.
Corresponding Source conveyed, and Installation Information provided,
in accord with this section must be in a format that is publicly
documented (and with an implementation available to the public in
source code form), and must require no special password or key for
unpacking, reading or copying.
7. Additional Terms.
"Additional permissions" are terms that supplement the terms of this
License by making exceptions from one or more of its conditions.
Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law. If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it. (Additional permissions may be written to require their own
removal in certain cases when you modify the work.) You may place
additional permissions on material, added by you to a covered work,
for which you have or can give appropriate copyright permission.
Notwithstanding any other provision of this License, for material you
add to a covered work, you may (if authorized by the copyright holders of
that material) supplement the terms of this License with terms:
a) Disclaiming warranty or limiting liability differently from the
terms of sections 15 and 16 of this License; or
b) Requiring preservation of specified reasonable legal notices or
author attributions in that material or in the Appropriate Legal
Notices displayed by works containing it; or
c) Prohibiting misrepresentation of the origin of that material, or
requiring that modified versions of such material be marked in
reasonable ways as different from the original version; or
d) Limiting the use for publicity purposes of names of licensors or
authors of the material; or
e) Declining to grant rights under trademark law for use of some
trade names, trademarks, or service marks; or
f) Requiring indemnification of licensors and authors of that
material by anyone who conveys the material (or modified versions of
it) with contractual assumptions of liability to the recipient, for
any liability that these contractual assumptions directly impose on
those licensors and authors.
All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10. If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further
restriction, you may remove that term. If a license document contains
a further restriction but permits relicensing or conveying under this
License, you may add to a covered work material governed by the terms
of that license document, provided that the further restriction does
not survive such relicensing or conveying.
If you add terms to a covered work in accord with this section, you
must place, in the relevant source files, a statement of the
additional terms that apply to those files, or a notice indicating
where to find the applicable terms.
Additional terms, permissive or non-permissive, may be stated in the
form of a separately written license, or stated as exceptions;
the above requirements apply either way.
8. Termination.
You may not propagate or modify a covered work except as expressly
provided under this License. Any attempt otherwise to propagate or
modify it is void, and will automatically terminate your rights under
this License (including any patent licenses granted under the third
paragraph of section 11).
However, if you cease all violation of this License, then your
license from a particular copyright holder is reinstated (a)
provisionally, unless and until the copyright holder explicitly and
finally terminates your license, and (b) permanently, if the copyright
holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.
Moreover, your license from a particular copyright holder is
reinstated permanently if the copyright holder notifies you of the
violation by some reasonable means, this is the first time you have
received notice of violation of this License (for any work) from that
copyright holder, and you cure the violation prior to 30 days after
your receipt of the notice.
Termination of your rights under this section does not terminate the
licenses of parties who have received copies or rights from you under
this License. If your rights have been terminated and not permanently
reinstated, you do not qualify to receive new licenses for the same
material under section 10.
9. Acceptance Not Required for Having Copies.
You are not required to accept this License in order to receive or
run a copy of the Program. Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance. However,
nothing other than this License grants you permission to propagate or
modify any covered work. These actions infringe copyright if you do
not accept this License. Therefore, by modifying or propagating a
covered work, you indicate your acceptance of this License to do so.
10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
propagate that work, subject to this License. You are not responsible
for enforcing compliance by third parties with this License.
An "entity transaction" is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations. If propagation of a covered
work results from an entity transaction, each party to that
transaction who receives a copy of the work also receives whatever
licenses to the work the party's predecessor in interest had or could
give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest, if
the predecessor has it or can get it with reasonable efforts.
You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License. For example, you may
not impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate litigation
(including a cross-claim or counterclaim in a lawsuit) alleging that
any patent claim is infringed by making, using, selling, offering for
sale, or importing the Program or any portion of it.
11. Patents.
A "contributor" is a copyright holder who authorizes use under this
License of the Program or a work on which the Program is based. The
work thus licensed is called the contributor's "contributor version".
A contributor's "essential patent claims" are all patent claims
owned or controlled by the contributor, whether already acquired or
hereafter acquired, that would be infringed by some manner, permitted
by this License, of making, using, or selling its contributor version,
but do not include claims that would be infringed only as a
consequence of further modification of the contributor version. For
purposes of this definition, "control" includes the right to grant
patent sublicenses in a manner consistent with the requirements of
this License.
Each contributor grants you a non-exclusive, worldwide, royalty-free
patent license under the contributor's essential patent claims, to
make, use, sell, offer for sale, import and otherwise run, modify and
propagate the contents of its contributor version.
In the following three paragraphs, a "patent license" is any express
agreement or commitment, however denominated, not to enforce a patent
(such as an express permission to practice a patent or covenant not to
sue for patent infringement). To "grant" such a patent license to a
party means to make such an agreement or commitment not to enforce a
patent against the party.
If you convey a covered work, knowingly relying on a patent license,
and the Corresponding Source of the work is not available for anyone
to copy, free of charge and under the terms of this License, through a
publicly available network server or other readily accessible means,
then you must either (1) cause the Corresponding Source to be so
available, or (2) arrange to deprive yourself of the benefit of the
patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent
license to downstream recipients. "Knowingly relying" means you have
actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
covered work, and grant a patent license to some of the parties
receiving the covered work authorizing them to use, propagate, modify
or convey a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the covered
work and works based on it.
A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License. You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Remote Network Interaction; Use with the GNU General Public License.
Notwithstanding any other provision of this License, if you modify the
Program, your modified version must prominently offer all users
interacting with it remotely through a computer network (if your version
supports such interaction) an opportunity to receive the Corresponding
Source of your version by providing access to the Corresponding Source
from a network server at no charge, through some standard or customary
means of facilitating copying of software. This Corresponding Source
shall include the Corresponding Source for any work covered by version 3
of the GNU General Public License that is incorporated pursuant to the
following paragraph.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the work with which it is combined will remain governed by version
3 of the GNU General Public License.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions of
the GNU Affero General Public License from time to time. Such new versions
will be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU Affero General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU Affero General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU Affero General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<https://www.gnu.org/licenses/>.
+19
View File
@@ -0,0 +1,19 @@
# Makefile: thin front door over dev.sh so `make build/vet/test/check/smoke`
# route through the digest-pinned Docker builder (ALL dev work in Docker —
# the host never runs a Go toolchain).
.PHONY: build vet test check smoke
build:
@./dev.sh build
vet:
@./dev.sh vet
test:
@./dev.sh test
check:
@./dev.sh check
smoke:
@./dev.sh smoke
+137
View File
@@ -0,0 +1,137 @@
# mopac-discourse-go
A 100% Go, stdlib-only client for the Discourse REST API (admin API key
auth). One static binary, zero third-party modules, no official SDK —
the MOPAC outbound-CLI for Discourse (SPEC-20260829 "supporting cast":
Discourse is where briefings, usage reports and agent documentation
land). AGPLv3.
Status: 2026-08-29 — v0 complete and green: categories (list/create),
topics (create/list/latest/get), posts (create/update/get), current-user
identity probe, raw JSON passthrough for everything else, typed error
classes, thin CLI. Built and tested entirely against a fake Discourse
(no live writes). Live reads verified against community.turnsys.com;
category creation 403s with the current key (needs the admin-scoped key)
— see "Live verification" below.
## What it implements
The wire protocol, in plain REST with stdlib:
| Surface | Wire |
|---|---|
| whoami | `GET /session/current.json` — cheapest url+key+username check |
| categories list | `GET /categories.json` |
| categories create | `POST /categories.json` — name, color, text_color, permissions (group name -> 1/2/3); needs an admin-scoped key |
| topics create | `POST /posts.json` — first post with `title`+`raw`+`category`; response carries `id` (first post), `topic_id`, `topic_slug` |
| topics list | `GET /c/<id>.json`, `GET /c/<slug>.json`, `GET /c/<slug>/<id>.json` — category topic lists |
| topics latest | `GET /latest.json` |
| topics get | `GET /t/<id>.json` |
| posts create | `POST /posts.json``topic_id`+`raw` |
| posts update | `PUT /posts/<id>.json``{post: {raw, edit_reason}}` |
| posts get | `GET /posts/<id>.json` |
| raw anything | `Do(ctx, METHOD, path, body, out)` — JSON in, JSON out; unmodeled endpoints never block on a client release |
Auth is the header pair `Api-Key` + `Api-Username` on every request.
## Library surface (what `harness brief` calls)
```go
import "git.knownelement.com/ukrrs/mopac-discourse-go"
c, err := discourse.New(baseURL, apiKey, apiUsername) // or NewFromEnv()
cats, _ := c.ListCategories(ctx)
cat, _ := c.FindCategory(ctx, 0, "mopac-briefings") // id OR slug
cat, err := c.CreateCategory(ctx, discourse.CreateCategoryRequest{
Name: "MOPAC Briefings", Color: "3AB54A", TextColor: "FFFFFF",
Permissions: map[string]int{"staff": 3},
}) // ErrForbidden until the admin-scoped key lands
res, _ := c.CreateTopic(ctx, discourse.CreateTopicRequest{
Title: "MOPAC briefing 2026-09-01", Raw: markdown, Category: cat.ID,
})
res.URL(baseURL) // https://forum/t/<slug>/<topic_id>
p, _ := c.CreatePost(ctx, discourse.CreatePostRequest{TopicID: res.TopicID, Raw: "reply"})
_, _ = c.UpdatePost(ctx, p.PostID, "edited", "typo")
```
Errors classify via `errors.Is`: `ErrForbidden` (403 — key lacks scope),
`ErrUnauthorized` (401), `ErrNotFound`, `ErrRateLimited` (429, with
`APIError.RetryAfter`), `ErrServer`, `ErrUnreachable`,
`ErrMalformedResponse`, `ErrInvalidRequest`. Every server failure is
also an `*APIError` carrying method, path, status and the
Discourse-reported reasons.
The key is constructor/env-only, never a flag, never logged:
`Client.String()` renders base url + acting username, and error strings
carry only paths and status codes (the redaction sweep in the smoke
greps every captured output for the key).
## Quickstart (verified 2026-08-29, all against the fake server)
All dev work happens inside a Docker builder (host stays toolchain-free).
```sh
./dev.sh check # = go build + go vet + go test, inside golang:1.26-bookworm
```
Expected output (tail):
```text
ok git.knownelement.com/ukrrs/mopac-discourse-go
```
End-to-end smoke — builds the CLI, boots the fake Discourse in a
container on `127.0.0.1:8610`, drives the real binary from the host
through a 0600 env file (whoami / category list+create / topic create /
topic list by id and slug / post reply / post update / raw passthrough /
typed 404 / redaction sweep / bad-key exit code):
```sh
./dev.sh smoke
```
Expected output (tail):
```text
smoke: OK
```
### Configure
Credentials NEVER arrive via flags or arguments:
```sh
mkdir -p ~/.config/discourse-go && umask 077
cp env.example ~/.config/discourse-go/env
# fill in DISCOURSE_URL / DISCOURSE_API_KEY / DISCOURSE_API_USERNAME
```
Then `set -a; . ~/.config/discourse-go/env; set +a` before the CLI (or
source it in the service env). For the harness, the key resolves through
its `key_ref` mechanism (env:/file:/mpk:) exactly like the Redmine key.
## CLI reference
```
discourse-go whoami
discourse-go categories list
discourse-go categories create NAME [-color HEX] [-text-color HEX] [-perm GROUP=LEVEL]...
discourse-go topics list [-category ID] [-slug SLUG] [-latest]
discourse-go topics show ID
discourse-go topics create -title TITLE -category ID [-file PATH | -raw TEXT]
discourse-go posts create -topic ID [-file PATH | -raw TEXT]
discourse-go posts update ID [-file PATH | -raw TEXT] [-reason TEXT]
discourse-go raw METHOD PATH [-data JSON|@file]
```
Perm levels: 1 = reply/see, 2 = create posts, 3 = full. Output is JSON.
Exit codes: 0 ok, 1 usage/config, 2 API/transport error (the message
names the class).
## Live verification (community.turnsys.com, 2026-08-29)
- `whoami` + `categories list` with the current user-scoped key: OK
(HTTP 200).
- `categories create`: **HTTP 403** with the current key — category
creation is admin-scoped. The client fully supports it and maps it to
`ErrForbidden`; live creation waits for the admin key (Charles's 1900
list). The harness briefing pipeline is unaffected: it posts TOPICS
into an existing category, which the current key allows.
## License
AGPLv3 (see LICENSE) — maximally viral, per the MOPAC spec.
+102
View File
@@ -0,0 +1,102 @@
// Categories: list (GET /categories.json) and create (POST /categories.json).
// Creation needs an admin-scoped key — the current MOPAC key gets 403
// there (ErrForbidden); listing works with a standard key.
package discourse
import (
"context"
"fmt"
"net/url"
"strings"
)
// Category is the subset of the Discourse category payload callers use.
type Category struct {
ID int `json:"id"`
Name string `json:"name"`
Slug string `json:"slug"`
Description string `json:"description"`
Color string `json:"color"`
TextColor string `json:"text_color"`
Position int `json:"position"`
TopicCount int `json:"topic_count"`
}
// CreateCategoryRequest is the POST /categories.json body. Permissions
// maps a GROUP NAME to an access level: 1 = reply/see, 2 = create posts,
// 3 = full (the security group numbers Discourse's admin UI uses). Empty
// means "default: everyone full" — for restricted categories set it
// explicitly, e.g. {"staff": 3, "trust_level_0": 1}.
type CreateCategoryRequest struct {
Name string `json:"name"`
Color string `json:"color"` // 6 hex digits, no '#'
TextColor string `json:"text_color"` // 6 hex digits, no '#'
Permissions map[string]int `json:"permissions,omitempty"`
Position int `json:"position,omitempty"`
ParentCategoryID int `json:"parent_category_id,omitempty"`
Description string `json:"description,omitempty"`
}
// ListCategories returns the instance's categories (one request; the
// endpoint returns the full list).
func (c *Client) ListCategories(ctx context.Context) ([]Category, error) {
var payload struct {
CategoryList struct {
Categories []Category `json:"categories"`
} `json:"category_list"`
}
if err := c.Get(ctx, "/categories.json", &payload); err != nil {
return nil, err
}
return payload.CategoryList.Categories, nil
}
// FindCategory resolves a category by id or by slug (case-insensitive).
// One of the two must be non-zero/non-empty.
func (c *Client) FindCategory(ctx context.Context, id int, slug string) (*Category, error) {
cats, err := c.ListCategories(ctx)
if err != nil {
return nil, err
}
for i := range cats {
if (id != 0 && cats[i].ID == id) ||
(slug != "" && strings.EqualFold(cats[i].Slug, slug)) {
return &cats[i], nil
}
}
return nil, &APIError{
Method: "GET",
Path: "/categories.json",
Status: 404,
Errors: []string{fmt.Sprintf("category id=%d slug=%q not found", id, slug)},
}
}
// CreateCategory creates a category and returns the created record.
// Colors are normalized (uppercased, '#' stripped); Discourse requires
// valid hex or it 422s.
func (c *Client) CreateCategory(ctx context.Context, req CreateCategoryRequest) (*Category, error) {
if strings.TrimSpace(req.Name) == "" {
return nil, fmt.Errorf("%w: category name is required", ErrInvalidRequest)
}
req.Color = normHex(req.Color, "3AB54A")
req.TextColor = normHex(req.TextColor, "FFFFFF")
var created Category
if err := c.Post(ctx, "/categories.json", req, &created); err != nil {
return nil, err
}
return &created, nil
}
func normHex(v, fallback string) string {
v = strings.TrimPrefix(strings.TrimSpace(strings.ToUpper(v)), "#")
if v == "" {
return fallback
}
return v
}
// quotePathSegment escapes a path segment (slugs in /c/<slug>/<id>.json).
func quotePathSegment(s string) string {
return url.PathEscape(s)
}
+220
View File
@@ -0,0 +1,220 @@
package main
import (
"context"
"encoding/json"
"flag"
"fmt"
"os"
"strconv"
"strings"
"git.knownelement.com/ukrrs/mopac-discourse-go"
)
func runCategories(ctx context.Context, c *discourse.Client, args []string) (any, error) {
if len(args) == 0 {
return nil, fmt.Errorf("categories needs a subcommand (list|create)")
}
switch args[0] {
case "list":
if len(args) != 1 {
return nil, fmt.Errorf("categories list takes no arguments")
}
return c.ListCategories(ctx)
case "create":
fs := flag.NewFlagSet("categories create", flag.ContinueOnError)
color := fs.String("color", "", "hex color, 6 digits")
textColor := fs.String("text-color", "", "hex text color, 6 digits")
perms := multiFlag{}
fs.Var(&perms, "perm", "GROUP=LEVEL (1 reply/see, 2 create, 3 full); repeatable")
if err := fs.Parse(flagsFirst(args[1:])); err != nil {
return nil, err
}
if fs.NArg() != 1 {
return nil, fmt.Errorf("categories create needs exactly one NAME")
}
req := discourse.CreateCategoryRequest{
Name: fs.Arg(0),
Color: *color,
TextColor: *textColor,
}
for _, p := range perms {
parts := strings.SplitN(p, "=", 2)
if len(parts) != 2 {
return nil, fmt.Errorf("-perm %q must be GROUP=LEVEL", p)
}
lvl, err := strconv.Atoi(parts[1])
if err != nil || lvl < 1 || lvl > 3 {
return nil, fmt.Errorf("-perm %q level must be 1, 2 or 3", p)
}
if req.Permissions == nil {
req.Permissions = map[string]int{}
}
req.Permissions[parts[0]] = lvl
}
return c.CreateCategory(ctx, req)
}
return nil, fmt.Errorf("unknown categories subcommand %q", args[0])
}
func runTopics(ctx context.Context, c *discourse.Client, args []string) (any, error) {
if len(args) == 0 {
return nil, fmt.Errorf("topics needs a subcommand (list|show|create)")
}
switch args[0] {
case "list":
fs := flag.NewFlagSet("topics list", flag.ContinueOnError)
catID := fs.Int("category", 0, "category id")
slug := fs.String("slug", "", "category slug")
latest := fs.Bool("latest", false, "instance-wide latest topics")
if err := fs.Parse(args[1:]); err != nil {
return nil, err
}
if *latest {
return c.LatestTopics(ctx)
}
return c.ListTopics(ctx, *catID, *slug)
case "show":
if len(args) != 2 {
return nil, fmt.Errorf("topics show needs exactly one ID")
}
id, err := strconv.Atoi(args[1])
if err != nil {
return nil, fmt.Errorf("topic id %q is not a number", args[1])
}
return c.GetTopic(ctx, id)
case "create":
fs := flag.NewFlagSet("topics create", flag.ContinueOnError)
title := fs.String("title", "", "topic title (required)")
category := fs.Int("category", 0, "category id (required)")
raw := fs.String("raw", "", "markdown body inline")
file := fs.String("file", "", "markdown body from file (overrides -raw)")
if err := fs.Parse(flagsFirst(args[1:])); err != nil {
return nil, err
}
body, err := bodyFrom(*file, *raw)
if err != nil {
return nil, err
}
return c.CreateTopic(ctx, discourse.CreateTopicRequest{Title: *title, Raw: body, Category: *category})
}
return nil, fmt.Errorf("unknown topics subcommand %q", args[0])
}
func runPosts(ctx context.Context, c *discourse.Client, args []string) (any, error) {
if len(args) == 0 {
return nil, fmt.Errorf("posts needs a subcommand (create|update)")
}
switch args[0] {
case "create":
fs := flag.NewFlagSet("posts create", flag.ContinueOnError)
topic := fs.Int("topic", 0, "topic id (required)")
raw := fs.String("raw", "", "markdown body inline")
file := fs.String("file", "", "markdown body from file (overrides -raw)")
if err := fs.Parse(flagsFirst(args[1:])); err != nil {
return nil, err
}
body, err := bodyFrom(*file, *raw)
if err != nil {
return nil, err
}
return c.CreatePost(ctx, discourse.CreatePostRequest{TopicID: *topic, Raw: body})
case "update":
fs := flag.NewFlagSet("posts update", flag.ContinueOnError)
raw := fs.String("raw", "", "markdown body inline")
file := fs.String("file", "", "markdown body from file (overrides -raw)")
reason := fs.String("reason", "", "edit reason")
if err := fs.Parse(flagsFirst(args[1:])); err != nil {
return nil, err
}
if fs.NArg() != 1 {
return nil, fmt.Errorf("posts update needs exactly one ID")
}
id, err := strconv.Atoi(fs.Arg(0))
if err != nil {
return nil, fmt.Errorf("post id %q is not a number", fs.Arg(0))
}
body, err := bodyFrom(*file, *raw)
if err != nil {
return nil, err
}
return c.UpdatePost(ctx, id, body, *reason)
}
return nil, fmt.Errorf("unknown posts subcommand %q", args[0])
}
func runRaw(ctx context.Context, c *discourse.Client, args []string) (any, error) {
if len(args) < 2 {
return nil, fmt.Errorf("raw needs METHOD and PATH")
}
method := strings.ToUpper(args[0])
path := args[1]
fs := flag.NewFlagSet("raw", flag.ContinueOnError)
data := fs.String("data", "", "JSON body inline or @file")
if err := fs.Parse(args[2:]); err != nil {
return nil, err
}
var body any
if *data != "" {
raw := []byte(*data)
if strings.HasPrefix(*data, "@") {
b, err := os.ReadFile(strings.TrimPrefix(*data, "@"))
if err != nil {
return nil, err
}
raw = b
}
if err := json.Unmarshal(raw, &body); err != nil {
return nil, fmt.Errorf("-data is not valid JSON: %v", err)
}
}
var out any
if err := c.Do(ctx, method, path, body, &out); err != nil {
return nil, err
}
return out, nil
}
func bodyFrom(file, raw string) (string, error) {
if file != "" {
b, err := os.ReadFile(file)
if err != nil {
return "", err
}
return string(b), nil
}
if raw == "" {
return "", fmt.Errorf("body required: -raw TEXT or -file PATH")
}
return raw, nil
}
// flagsFirst lets flags appear after positional args ("create NAME -color
// X"): every flag here takes a value, so tokens starting with "-" grab
// their neighbor; the rest are positional. Reordered as flags-then-
// positionals for flag.Parse.
func flagsFirst(args []string) []string {
var flags, pos []string
for i := 0; i < len(args); i++ {
if strings.HasPrefix(args[i], "-") && args[i] != "-" {
flags = append(flags, args[i])
if i+1 < len(args) {
i++
flags = append(flags, args[i])
}
} else {
pos = append(pos, args[i])
}
}
return append(flags, pos...)
}
// multiFlag collects repeatable string flags (-perm a=1 -perm b=2).
type multiFlag []string
func (m *multiFlag) String() string { return strings.Join(*m, ",") }
func (m *multiFlag) Set(v string) error {
*m = append(*m, v)
return nil
}
+108
View File
@@ -0,0 +1,108 @@
// Command discourse-go is a thin CLI over the client library: enough to
// drive and verify a Discourse instance by hand (categories, topics,
// posts, raw passthrough). Credentials arrive via environment only
// (DISCOURSE_URL / DISCOURSE_API_KEY / DISCOURSE_API_USERNAME, see
// env.example) — never as flags, so they never land in shell history or
// process listings.
package main
import (
"context"
"encoding/json"
"errors"
"fmt"
"os"
"os/signal"
"syscall"
"git.knownelement.com/ukrrs/mopac-discourse-go"
)
const usage = `discourse-go — thin Discourse client CLI (config via env)
Usage:
discourse-go whoami
discourse-go categories list
discourse-go categories create NAME [-color HEX] [-text-color HEX] [-perm GROUP=LEVEL]...
discourse-go topics list [-category ID] [-slug SLUG] [-latest]
discourse-go topics show ID
discourse-go topics create -title TITLE -category ID [-file PATH | -raw TEXT]
discourse-go posts create -topic ID [-file PATH | -raw TEXT]
discourse-go posts update ID [-file PATH | -raw TEXT] [-reason TEXT]
discourse-go raw METHOD PATH [-data JSON]
Environment (0600 env file, sourced before the call):
DISCOURSE_URL instance root, e.g. https://community.turnsys.com
DISCOURSE_API_KEY API key (never a flag, never logged)
DISCOURSE_API_USERNAME the user the key acts as (default: system)
Perm levels: 1 = reply/see, 2 = create posts, 3 = full.
raw PATH is everything after the instance root, e.g. /groups.json.
Exit codes: 0 ok · 1 usage/config · 2 API/transport error (message says
which class: forbidden/unauthorized/not-found/rate-limited/server/
unreachable/malformed).`
func main() {
os.Exit(run(os.Args[1:]))
}
func run(args []string) int {
if len(args) == 0 {
fmt.Fprint(os.Stderr, usage)
return 1
}
ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
defer stop()
client, err := discourse.NewFromEnv()
if err != nil {
fmt.Fprintf(os.Stderr, "discourse-go: %v\n", err)
return 1
}
var out any
switch args[0] {
case "whoami":
if len(args) != 1 {
return usageErr()
}
out, err = client.CurrentUser(ctx)
case "categories":
out, err = runCategories(ctx, client, args[1:])
case "topics":
out, err = runTopics(ctx, client, args[1:])
case "posts":
out, err = runPosts(ctx, client, args[1:])
case "raw":
out, err = runRaw(ctx, client, args[1:])
case "help", "-h", "--help":
fmt.Print(usage)
return 0
default:
fmt.Fprintf(os.Stderr, "discourse-go: unknown command %q\n\n%s", args[0], usage)
return 1
}
if err != nil {
fmt.Fprintf(os.Stderr, "discourse-go: %v\n", err)
if errors.Is(err, discourse.ErrInvalidRequest) {
return 1
}
return 2
}
if out == nil {
return 0
}
enc := json.NewEncoder(os.Stdout)
enc.SetIndent("", " ")
if err := enc.Encode(out); err != nil {
fmt.Fprintf(os.Stderr, "discourse-go: encode output: %v\n", err)
return 1
}
return 0
}
func usageErr() int {
fmt.Fprint(os.Stderr, usage)
return 1
}
Executable
+50
View File
@@ -0,0 +1,50 @@
#!/bin/sh
# mopac-discourse-go dev wrapper. EVERY compile/vet/test path routes
# through the digest-pinned Docker builder (MOPAC big rule: ALL dev work
# in Docker — the host runs containers, never toolchains).
#
# Usage: ./dev.sh {build|vet|test|check|smoke|shell} [args...]
#
# build compile ./cmd/discourse-go into bin/
# vet go vet ./...
# test go test ./...
# check build + vet + test (the pre-commit gate)
# smoke end-to-end smoke against the in-repo fake Discourse
# shell interactive sh inside the builder
set -e
IMAGE="golang@sha256:e8c859f5632dcfde7b32d2012b4351728f6437930887c2f6a91ea242459e5514" # = golang:1.26-bookworm
run() {
docker run --rm -v "$PWD:/h" -w /h \
-u "$(id -u):$(id -g)" -e HOME=/tmp -e GOFLAGS=-buildvcs=false \
"$IMAGE" "$@"
}
cmd=${1:-check}
shift || true
case "$cmd" in
build)
run go build -o bin/discourse-go ./cmd/discourse-go
;;
vet)
run go vet ./...
;;
test)
run go test "$@" ./...
;;
check)
run sh -c 'go build -o bin/discourse-go ./cmd/discourse-go && go vet ./... && go test ./...'
;;
smoke)
./smoke/smoke.sh
;;
shell)
run sh
;;
*)
echo "dev.sh: unknown command $cmd (want build|vet|test|check|smoke|shell)" >&2
exit 1
;;
esac
+269
View File
@@ -0,0 +1,269 @@
// Package discourse is a 100% Go, stdlib-only client for the Discourse
// REST API (admin API key auth). It covers what the MOPAC stack needs —
// categories, topics, posts — plus a raw JSON passthrough for everything
// else, so no future endpoint needs another release cycle here.
//
// Keys: the API key arrives via constructor or environment
// (DISCOURSE_URL / DISCOURSE_API_KEY / DISCOURSE_API_USERNAME), never via
// flags or arguments, and is never logged, never rendered by Client.
// String, and never echoed in error strings (it only ever travels in the
// Api-Key header).
package discourse
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"os"
"strconv"
"strings"
"time"
)
// Sentinel error classes; use errors.Is. Every server failure is also an
// *APIError carrying status, path and the Discourse-reported reasons.
var (
// ErrForbidden: HTTP 403 — the key lacks the scope for the call (the
// known MOPAC case: the current key cannot create categories; an
// admin-scoped key is needed).
ErrForbidden = errors.New("discourse: forbidden (key lacks scope for this call)")
// ErrUnauthorized: HTTP 401 — bad key or unknown Api-Username.
ErrUnauthorized = errors.New("discourse: unauthorized (bad key or username)")
// ErrNotFound: HTTP 404.
ErrNotFound = errors.New("discourse: not found")
// ErrRateLimited: HTTP 429; APIError.RetryAfter holds the server hint.
ErrRateLimited = errors.New("discourse: rate limited")
// ErrServer: HTTP 5xx.
ErrServer = errors.New("discourse: server error")
// ErrUnreachable: transport-level failure (DNS, refused, timeout).
ErrUnreachable = errors.New("discourse: unreachable")
// ErrMalformedResponse: non-JSON or unexpected payload shape.
ErrMalformedResponse = errors.New("discourse: malformed response")
// ErrInvalidRequest: locally rejected call (bad args) — never sent.
ErrInvalidRequest = errors.New("discourse: invalid request")
)
// APIError is a non-2xx response. Errors list the Discourse-reported
// reasons (error_description / errors[] fields) when present.
type APIError struct {
Method string
Path string
Status int
Errors []string
RetryAfter time.Duration
}
func (e *APIError) Error() string {
msgs := e.Errors
if len(msgs) == 0 {
msgs = []string{"(no detail in response body)"}
}
return fmt.Sprintf("%s %s: HTTP %d: %s", e.Method, e.Path, e.Status, strings.Join(msgs, "; "))
}
// Unwrap maps the status onto the sentinel classes.
func (e *APIError) Unwrap() error {
switch e.Status {
case http.StatusForbidden:
return ErrForbidden
case http.StatusUnauthorized:
return ErrUnauthorized
case http.StatusNotFound:
return ErrNotFound
case http.StatusTooManyRequests:
return ErrRateLimited
case http.StatusBadGateway, http.StatusServiceUnavailable, http.StatusGatewayTimeout, http.StatusInternalServerError:
return ErrServer
}
return nil
}
// Client talks to one Discourse instance with one API key.
type Client struct {
baseURL string // scheme + host, no trailing slash, no path
apiKey string
apiUsername string
http *http.Client
}
// New builds a client. baseURL is the instance root
// (https://forum.example.com); apiKey is a Discourse API key (global or
// user-scoped); apiUsername is the user the key acts as (e.g. "system").
func New(baseURL, apiKey, apiUsername string) (*Client, error) {
if apiKey == "" {
return nil, fmt.Errorf("%w: empty API key", ErrInvalidRequest)
}
if apiUsername == "" {
apiUsername = "system"
}
u := strings.TrimSuffix(strings.TrimSpace(baseURL), "/")
if u == "" || !strings.Contains(u, "://") {
return nil, fmt.Errorf("%w: base url %q must be scheme://host", ErrInvalidRequest, redact(baseURL))
}
parsed, err := url.Parse(u)
if err != nil || parsed.Host == "" {
return nil, fmt.Errorf("%w: base url %q does not parse", ErrInvalidRequest, redact(baseURL))
}
return &Client{
baseURL: u,
apiKey: apiKey,
apiUsername: apiUsername,
http: &http.Client{Timeout: 60 * time.Second},
}, nil
}
// NewFromEnv builds a client from DISCOURSE_URL, DISCOURSE_API_KEY and
// DISCOURSE_API_USERNAME (default "system"). The intended source is a
// 0600 env file (see env.example), sourced before the process starts.
func NewFromEnv() (*Client, error) {
return New(os.Getenv("DISCOURSE_URL"), os.Getenv("DISCOURSE_API_KEY"), os.Getenv("DISCOURSE_API_USERNAME"))
}
// String renders the client for logs: base url + acting username only.
// The key never appears.
func (c *Client) String() string {
return fmt.Sprintf("discourse.Client(%s as %s)", c.baseURL, c.apiUsername)
}
// BaseURL exposes the instance root (safe to log).
func (c *Client) BaseURL() string { return c.baseURL }
// Do is the raw JSON passthrough: method + path ("/categories.json",
// query included) + an optional JSON-marshalable body, decoded into out
// (when non-nil). Anything the typed helpers do not cover goes through
// here, so the client never blocks an upstream endpoint.
func (c *Client) Do(ctx context.Context, method, path string, body, out any) error {
var rd io.Reader
if body != nil {
raw, err := json.Marshal(body)
if err != nil {
return fmt.Errorf("%w: marshal body: %v", ErrInvalidRequest, err)
}
rd = bytes.NewReader(raw)
}
req, err := http.NewRequestWithContext(ctx, method, c.baseURL+path, rd)
if err != nil {
return fmt.Errorf("%w: %v", ErrInvalidRequest, err)
}
resp, err := c.roundTrip(req, body != nil)
if err != nil {
return err
}
defer resp.Body.Close()
raw, err := io.ReadAll(io.LimitReader(resp.Body, 8<<20))
if err != nil {
return fmt.Errorf("%w: read %s: %v", ErrUnreachable, path, err)
}
if out == nil {
return nil
}
if err := json.Unmarshal(raw, out); err != nil {
return fmt.Errorf("%w: decode %s: %v", ErrMalformedResponse, path, err)
}
return nil
}
// Get is Do with GET and no body.
func (c *Client) Get(ctx context.Context, path string, out any) error {
return c.Do(ctx, http.MethodGet, path, nil, out)
}
// Post is Do with POST and a JSON body.
func (c *Client) Post(ctx context.Context, path string, body, out any) error {
return c.Do(ctx, http.MethodPost, path, body, out)
}
// Put is Do with PUT and a JSON body.
func (c *Client) Put(ctx context.Context, path string, body, out any) error {
return c.Do(ctx, http.MethodPut, path, body, out)
}
// roundTrip sends req with the admin API key headers and classifies the
// response: 2xx returns the open response for the caller to drain; 4xx/5xx
// returns a closed-body *APIError; transport errors return ErrUnreachable.
func (c *Client) roundTrip(req *http.Request, hasBody bool) (*http.Response, error) {
req.Header.Set("Api-Key", c.apiKey)
req.Header.Set("Api-Username", c.apiUsername)
req.Header.Set("Accept", "application/json")
if hasBody {
req.Header.Set("Content-Type", "application/json")
}
resp, err := c.http.Do(req)
if err != nil {
return nil, fmt.Errorf("%w: %v", ErrUnreachable, redact(err.Error()))
}
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
defer resp.Body.Close()
raw, _ := io.ReadAll(io.LimitReader(resp.Body, 1<<20))
apiErr := &APIError{
Method: req.Method,
Path: req.URL.Path,
Status: resp.StatusCode,
RetryAfter: parseRetryAfter(resp.Header.Get("Retry-After")),
}
apiErr.Errors = responseErrors(raw)
if len(apiErr.Errors) == 0 {
apiErr.Errors = []string{truncate(strings.TrimSpace(string(raw)), 300)}
}
return nil, apiErr
}
return resp, nil
}
// responseErrors pulls the human-readable reasons out of a Discourse
// error body ("error" / "errors[]" / "error_description" fields).
func responseErrors(raw []byte) []string {
var payload struct {
Error string `json:"error"`
Errors []string `json:"errors"`
ErrorDescription string `json:"error_description"`
}
if err := json.Unmarshal(raw, &payload); err != nil {
return nil
}
var out []string
if payload.Error != "" {
out = append(out, payload.Error)
}
out = append(out, payload.Errors...)
if payload.ErrorDescription != "" {
out = append(out, payload.ErrorDescription)
}
return out
}
func parseRetryAfter(v string) time.Duration {
if v == "" {
return 0
}
if secs, err := strconv.Atoi(v); err == nil && secs >= 0 {
return time.Duration(secs) * time.Second
}
return 0
}
func truncate(s string, n int) string {
if len(s) <= n {
return s
}
return s[:n] + "..."
}
// redact strips any query string and userinfo from url-ish strings so a
// misconfigured hop cannot echo key material into logs.
func redact(s string) string {
if i := strings.Index(s, "?"); i >= 0 {
s = s[:i] + "?..."
}
if at := strings.Index(s, "@"); at >= 0 && strings.Contains(s, "://") {
if slash := strings.Index(s, "://"); slash >= 0 && at > slash {
s = s[:slash+3] + s[at+1:]
}
}
return s
}
+453
View File
@@ -0,0 +1,453 @@
package discourse
import (
"context"
"encoding/json"
"errors"
"fmt"
"net/http"
"net/http/httptest"
"strings"
"sync"
"testing"
)
const testKey = "test-api-key-0123456789"
// fakeDiscourse is a minimal in-memory Discourse for client tests: it
// enforces the Api-Key/Api-Username headers, serves the endpoints the
// client covers, and records every request for assertions.
type fakeDiscourse struct {
mu sync.Mutex
requests []string // "METHOD path"
cats map[int]Category
nextCat int
posts map[int]postRec // post id -> record
nextPost int
topics map[int]topicRec
nextT int
srv *httptest.Server
}
type postRec struct {
Post
EditReason string
}
type topicRec struct {
ID int
Title string
Slug string
Cat int
}
func newFake(t *testing.T) *fakeDiscourse {
t.Helper()
f := &fakeDiscourse{
cats: map[int]Category{
1: {ID: 1, Name: "General", Slug: "general", Color: "0088CC", TextColor: "FFFFFF"},
2: {ID: 2, Name: "MOPAC Briefings", Slug: "mopac-briefings", Color: "3AB54A", TextColor: "FFFFFF"},
},
nextCat: 3,
posts: map[int]postRec{},
nextPost: 100,
topics: map[int]topicRec{},
nextT: 10,
}
mux := http.NewServeMux()
mux.HandleFunc("/session/current.json", func(w http.ResponseWriter, r *http.Request) {
if !f.auth(w, r) {
return
}
writeJSON(w, 200, map[string]any{
"current_user": map[string]any{"id": 5, "username": "reachableceo", "admin": false},
})
})
mux.HandleFunc("/categories.json", func(w http.ResponseWriter, r *http.Request) {
if !f.auth(w, r) {
return
}
switch r.Method {
case http.MethodGet:
cats := make([]Category, 0, len(f.cats))
for _, c := range f.cats {
cats = append(cats, c)
}
writeJSON(w, 200, map[string]any{"category_list": map[string]any{"categories": cats}})
case http.MethodPost:
var req CreateCategoryRequest
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
writeJSON(w, 400, map[string]any{"errors": []string{"bad json"}})
return
}
if req.Name == "denied" { // simulate a non-admin key
writeJSON(w, 403, map[string]any{
"errors": []string{"You are not permitted to view the requested resource."},
"error_description": "Access denied",
})
return
}
f.mu.Lock()
cat := Category{
ID: f.nextCat, Name: req.Name,
Slug: strings.ToLower(strings.ReplaceAll(req.Name, " ", "-")),
Color: req.Color, TextColor: req.TextColor, Position: req.Position,
}
f.nextCat++
f.cats[cat.ID] = cat
f.mu.Unlock()
writeJSON(w, 200, cat)
default:
writeJSON(w, 405, nil)
}
})
mux.HandleFunc("/posts.json", func(w http.ResponseWriter, r *http.Request) {
if !f.auth(w, r) {
return
}
if r.Method != http.MethodPost {
writeJSON(w, 405, nil)
return
}
var req CreatePostRequest
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
writeJSON(w, 400, map[string]any{"errors": []string{"bad json"}})
return
}
f.mu.Lock()
defer f.mu.Unlock()
if req.TopicID == 0 { // topic creation
if strings.TrimSpace(req.Title) == "" || req.Category == 0 {
writeJSON(w, 422, map[string]any{"errors": []string{"Title can't be blank"}})
return
}
tid := f.nextT
f.nextT++
slug := strings.ToLower(strings.ReplaceAll(req.Title, " ", "-"))
f.topics[tid] = topicRec{ID: tid, Title: req.Title, Slug: slug, Cat: req.Category}
pid := f.nextPost
f.nextPost++
f.posts[pid] = postRec{Post: Post{ID: pid, TopicID: tid, PostNumber: 1, Raw: req.Raw, CreatedAt: "2026-08-29T06:30:00.000Z"}}
writeJSON(w, 200, map[string]any{"id": pid, "topic_id": tid, "topic_slug": slug})
return
}
pid := f.nextPost
f.nextPost++
f.posts[pid] = postRec{Post: Post{ID: pid, TopicID: req.TopicID, PostNumber: 2, Raw: req.Raw}}
writeJSON(w, 200, map[string]any{"id": pid, "topic_id": req.TopicID, "topic_slug": "existing"})
})
mux.HandleFunc("/posts/", func(w http.ResponseWriter, r *http.Request) {
if !f.auth(w, r) {
return
}
var id int
if _, err := fmt.Sscanf(strings.Split(r.URL.Path, "/")[2], "%d", &id); err != nil {
writeJSON(w, 404, nil)
return
}
f.mu.Lock()
defer f.mu.Unlock()
switch r.Method {
case http.MethodGet:
p, ok := f.posts[id]
if !ok {
writeJSON(w, 404, map[string]any{"errors": []string{"The requested URL or resource could not be found."}})
return
}
writeJSON(w, 200, map[string]any{"post": p})
case http.MethodPut:
var body struct {
Post struct {
Raw string `json:"raw"`
EditReason string `json:"edit_reason"`
} `json:"post"`
}
if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
writeJSON(w, 400, nil)
return
}
p, ok := f.posts[id]
if !ok {
writeJSON(w, 404, nil)
return
}
p.Raw = body.Post.Raw
p.EditReason = body.Post.EditReason
f.posts[id] = p
writeJSON(w, 200, map[string]any{"post": p})
default:
writeJSON(w, 405, nil)
}
})
mux.HandleFunc("/latest.json", func(w http.ResponseWriter, r *http.Request) {
if !f.auth(w, r) {
return
}
writeJSON(w, 200, map[string]any{"topic_list": map[string]any{"topics": []map[string]any{
{"id": 7, "title": "Latest one", "slug": "latest-one", "category_id": 1, "posts_count": 2},
}}})
})
mux.HandleFunc("/c/", func(w http.ResponseWriter, r *http.Request) {
if !f.auth(w, r) {
return
}
writeJSON(w, 200, map[string]any{"topic_list": map[string]any{"topics": []map[string]any{
{"id": 9, "title": "In category", "slug": "in-category", "category_id": 2, "posts_count": 1},
}}})
})
f.srv = httptest.NewServer(mux)
t.Cleanup(f.srv.Close)
return f
}
func (f *fakeDiscourse) auth(w http.ResponseWriter, r *http.Request) bool {
f.mu.Lock()
f.requests = append(f.requests, r.Method+" "+r.URL.Path)
f.mu.Unlock()
if r.Header.Get("Api-Key") != testKey || r.Header.Get("Api-Username") != "system" {
writeJSON(w, 403, map[string]any{"errors": []string{"Bad or missing API key"}})
return false
}
return true
}
func (f *fakeDiscourse) saw(substr string) bool {
f.mu.Lock()
defer f.mu.Unlock()
for _, r := range f.requests {
if strings.Contains(r, substr) {
return true
}
}
return false
}
func writeJSON(w http.ResponseWriter, code int, body any) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(code)
_ = json.NewEncoder(w).Encode(body)
}
func testClient(t *testing.T, f *fakeDiscourse) *Client {
t.Helper()
c, err := New(f.srv.URL, testKey, "")
if err != nil {
t.Fatalf("New: %v", err)
}
return c
}
func TestNewRejectsBadInput(t *testing.T) {
if _, err := New("https://ok.example", "", ""); !errors.Is(err, ErrInvalidRequest) {
t.Fatalf("empty key: want ErrInvalidRequest, got %v", err)
}
if _, err := New("not-a-url", testKey, ""); !errors.Is(err, ErrInvalidRequest) {
t.Fatalf("bad url: want ErrInvalidRequest, got %v", err)
}
}
func TestCurrentUser(t *testing.T) {
f := newFake(t)
c := testClient(t, f)
u, err := c.CurrentUser(context.Background())
if err != nil {
t.Fatalf("CurrentUser: %v", err)
}
if u.Username != "reachableceo" || u.Admin {
t.Fatalf("unexpected user %+v", u)
}
if !f.saw("GET /session/current.json") {
t.Fatal("wrong path hit")
}
}
func TestListCategoriesParsesAndAuths(t *testing.T) {
f := newFake(t)
c := testClient(t, f)
cats, err := c.ListCategories(context.Background())
if err != nil {
t.Fatalf("ListCategories: %v", err)
}
if len(cats) != 2 || cats[0].Name == "" || cats[1].Slug != "mopac-briefings" && cats[0].Slug != "mopac-briefings" {
t.Fatalf("unexpected categories: %+v", cats)
}
found, err := c.FindCategory(context.Background(), 0, "MOPAC-Briefings")
if err != nil || found.ID != 2 {
t.Fatalf("FindCategory by slug: %v %+v", err, found)
}
found, err = c.FindCategory(context.Background(), 1, "")
if err != nil || found.ID != 1 {
t.Fatalf("FindCategory by id: %v %+v", err, found)
}
if _, err := c.FindCategory(context.Background(), 99, ""); !errors.Is(err, ErrNotFound) {
t.Fatalf("missing category: want ErrNotFound, got %v", err)
}
}
func TestCreateCategory(t *testing.T) {
f := newFake(t)
c := testClient(t, f)
cat, err := c.CreateCategory(context.Background(), CreateCategoryRequest{
Name: "Ops Reports",
Color: "#25AAE2",
Permissions: map[string]int{"staff": 3},
})
if err != nil {
t.Fatalf("CreateCategory: %v", err)
}
if cat.ID != 3 || cat.Slug != "ops-reports" {
t.Fatalf("unexpected created category: %+v", cat)
}
if cat.Color != "25AAE2" { // normalized: # stripped, uppercased
t.Fatalf("color not normalized: %q", cat.Color)
}
}
func TestCreateCategoryForbiddenIsTypedAndRedacted(t *testing.T) {
f := newFake(t)
c := testClient(t, f)
_, err := c.CreateCategory(context.Background(), CreateCategoryRequest{Name: "denied"})
if !errors.Is(err, ErrForbidden) {
t.Fatalf("want ErrForbidden, got %v", err)
}
var apiErr *APIError
if !errors.As(err, &apiErr) || apiErr.Status != 403 {
t.Fatalf("want APIError 403, got %v", err)
}
if strings.Contains(err.Error(), testKey) {
t.Fatalf("error leaks the api key: %v", err)
}
if !strings.Contains(err.Error(), "not permitted") {
t.Fatalf("error misses discourse reasons: %v", err)
}
}
func TestCreateTopicAndURL(t *testing.T) {
f := newFake(t)
c := testClient(t, f)
res, err := c.CreateTopic(context.Background(), CreateTopicRequest{
Title: "MOPAC briefing 2026-08-29", Raw: "body", Category: 2,
})
if err != nil {
t.Fatalf("CreateTopic: %v", err)
}
if res.TopicID == 0 || res.PostID == 0 {
t.Fatalf("bad result: %+v", res)
}
want := f.srv.URL + "/t/mopac-briefing-2026-08-29/" + fmt.Sprint(res.TopicID)
if got := res.URL(f.srv.URL); got != want {
t.Fatalf("URL: want %s got %s", want, got)
}
if !f.saw("POST /posts.json") {
t.Fatal("topic create must go through POST /posts.json")
}
if _, err := c.CreateTopic(context.Background(), CreateTopicRequest{Title: "x", Raw: "y"}); !errors.Is(err, ErrInvalidRequest) {
t.Fatalf("missing category: want ErrInvalidRequest, got %v", err)
}
}
func TestListTopicsByCategoryAndLatest(t *testing.T) {
f := newFake(t)
c := testClient(t, f)
topics, err := c.ListTopics(context.Background(), 2, "mopac-briefings")
if err != nil {
t.Fatalf("ListTopics id+slug: %v", err)
}
if len(topics) != 1 || topics[0].ID != 9 {
t.Fatalf("unexpected topics: %+v", topics)
}
topics, err = c.ListTopics(context.Background(), 2, "")
if err != nil || len(topics) != 1 {
t.Fatalf("ListTopics id only: %v %+v", err, topics)
}
topics, err = c.ListTopics(context.Background(), 0, "mopac-briefings")
if err != nil || len(topics) != 1 {
t.Fatalf("ListTopics slug only: %v %+v", err, topics)
}
if _, err := c.ListTopics(context.Background(), 0, ""); !errors.Is(err, ErrInvalidRequest) {
t.Fatalf("no ref: want ErrInvalidRequest, got %v", err)
}
if _, err := c.LatestTopics(context.Background()); err != nil {
t.Fatalf("LatestTopics: %v", err)
}
}
func TestCreateAndUpdatePost(t *testing.T) {
f := newFake(t)
c := testClient(t, f)
res, err := c.CreatePost(context.Background(), CreatePostRequest{TopicID: 5, Raw: "reply body"})
if err != nil {
t.Fatalf("CreatePost: %v", err)
}
if res.TopicID != 5 {
t.Fatalf("bad result: %+v", res)
}
post, err := c.UpdatePost(context.Background(), res.PostID, "edited body", "typo")
if err != nil {
t.Fatalf("UpdatePost: %v", err)
}
if post.ID != res.PostID {
t.Fatalf("unexpected post: %+v", post)
}
got, err := c.GetPost(context.Background(), res.PostID)
if err != nil {
t.Fatalf("GetPost: %v", err)
}
if got.Raw != "edited body" {
t.Fatalf("update did not stick: %+v", got)
}
if _, err := c.CreatePost(context.Background(), CreatePostRequest{TopicID: 0, Raw: "x"}); !errors.Is(err, ErrInvalidRequest) {
t.Fatalf("no topic: want ErrInvalidRequest, got %v", err)
}
if _, err := c.UpdatePost(context.Background(), 99999, "x", ""); !errors.Is(err, ErrNotFound) {
t.Fatalf("missing post: want ErrNotFound, got %v", err)
}
}
func TestRawPassthrough(t *testing.T) {
f := newFake(t)
c := testClient(t, f)
var out map[string]any
if err := c.Get(context.Background(), "/latest.json", &out); err != nil {
t.Fatalf("raw get: %v", err)
}
if err := c.Do(context.Background(), http.MethodPost, "/echo.json", map[string]string{"a": "b"}, nil); err == nil || !errors.Is(err, ErrNotFound) {
t.Fatalf("raw post to unknown path: want ErrNotFound, got %v", err)
}
}
func TestUnreachableIsTypedAndRedacted(t *testing.T) {
c, err := New("http://127.0.0.1:1", testKey, "system")
if err != nil {
t.Fatalf("New: %v", err)
}
_, err = c.CurrentUser(context.Background())
if !errors.Is(err, ErrUnreachable) {
t.Fatalf("want ErrUnreachable, got %v", err)
}
if strings.Contains(err.Error(), testKey) {
t.Fatalf("error leaks the api key: %v", err)
}
}
func TestBadKeyIsUnauthorized(t *testing.T) {
f := newFake(t)
c, err := New(f.srv.URL, "wrong-key", "system")
if err != nil {
t.Fatalf("New: %v", err)
}
_, err = c.CurrentUser(context.Background())
if !errors.Is(err, ErrForbidden) {
t.Fatalf("want ErrForbidden (auth header rejected), got %v", err)
}
}
func TestClientStringNeverLeaksKey(t *testing.T) {
c, err := New("https://forum.example.com", testKey, "system")
if err != nil {
t.Fatal(err)
}
if s := c.String(); strings.Contains(s, testKey) {
t.Fatalf("String leaks key: %s", s)
}
}
+14
View File
@@ -0,0 +1,14 @@
# mopac-discourse-go credentials (copy to a 0600 file, e.g.
# ~/.config/discourse-go/env, source it, and fill in). Values are NEVER
# passed as flags or arguments. Any *.env file in this repo is gitignored.
#
# Instance root, no trailing slash.
DISCOURSE_URL=https://community.turnsys.com
# Discourse API key (Admin API > Keys, or a user API key). Creating
# categories requires an admin-scoped key; a standard key 403s there.
DISCOURSE_API_KEY=replace-me
# The user the key acts as (must match the key's allowed username, or be
# "system" for global keys).
DISCOURSE_API_USERNAME=reachableceo
+3
View File
@@ -0,0 +1,3 @@
module git.knownelement.com/ukrrs/mopac-discourse-go
go 1.24
+121
View File
@@ -0,0 +1,121 @@
// Posts: create (POST /posts.json — replies or topic creation, the same
// endpoint), update (PUT /posts/<id>.json), and the session identity
// check (GET /session/current.json) used by smoke tests and health probes.
package discourse
import (
"context"
"fmt"
"strings"
)
// Post is the post payload subset callers use.
type Post struct {
ID int `json:"id"`
TopicID int `json:"topic_id"`
PostNumber int `json:"post_number"`
Raw string `json:"raw"`
Cooked string `json:"cooked"`
CreatedAt string `json:"created_at"`
UpdatedAt string `json:"updated_at"`
}
// CreatePostRequest posts into an existing topic (topic_id set) or
// creates a topic (topic_id zero + title + category — prefer
// CreateTopic for that path).
type CreatePostRequest struct {
TopicID int `json:"topic_id"`
Raw string `json:"raw"`
Title string `json:"title,omitempty"`
Category int `json:"category,omitempty"`
}
// CreatePostResult is the POST /posts.json response.
type CreatePostResult struct {
PostID int `json:"id"`
TopicID int `json:"topic_id"`
TopicSlug string `json:"topic_slug"`
}
// CreatePost posts markdown into a topic and returns the ids.
func (c *Client) CreatePost(ctx context.Context, req CreatePostRequest) (*CreatePostResult, error) {
if req.TopicID <= 0 {
return nil, fmt.Errorf("%w: topic_id is required (use CreateTopic for new topics)", ErrInvalidRequest)
}
if strings.TrimSpace(req.Raw) == "" {
return nil, fmt.Errorf("%w: post raw body is required", ErrInvalidRequest)
}
var out CreatePostResult
if err := c.Post(ctx, "/posts.json", req, &out); err != nil {
return nil, err
}
return &out, nil
}
// UpdatePost replaces a post's markdown body (PUT /posts/<id>.json) with
// an optional edit reason.
func (c *Client) UpdatePost(ctx context.Context, postID int, raw, editReason string) (*Post, error) {
if postID <= 0 {
return nil, fmt.Errorf("%w: post id must be > 0", ErrInvalidRequest)
}
if strings.TrimSpace(raw) == "" {
return nil, fmt.Errorf("%w: post raw body is required", ErrInvalidRequest)
}
body := map[string]any{
"post": map[string]any{
"raw": raw,
},
}
if editReason != "" {
body["post"].(map[string]any)["edit_reason"] = editReason
}
var post struct {
Post Post `json:"post"`
}
if err := c.Put(ctx, "/posts/"+fmt.Sprint(postID)+".json", body, &post); err != nil {
return nil, err
}
if post.Post.ID == 0 {
return nil, fmt.Errorf("%w: post updated but response carries no id", ErrMalformedResponse)
}
return &post.Post, nil
}
// GetPost fetches one post by id (GET /posts/<id>.json).
func (c *Client) GetPost(ctx context.Context, postID int) (*Post, error) {
if postID <= 0 {
return nil, fmt.Errorf("%w: post id must be > 0", ErrInvalidRequest)
}
var payload struct {
Post Post `json:"post"`
}
if err := c.Get(ctx, "/posts/"+fmt.Sprint(postID)+".json", &payload); err != nil {
return nil, err
}
if payload.Post.ID == 0 {
return nil, fmt.Errorf("%w: post response carries no id", ErrMalformedResponse)
}
return &payload.Post, nil
}
// CurrentUser is the identity the key acts as — the cheapest live
// verification of url + key + username (any 2xx means the trio works).
type CurrentUser struct {
ID int `json:"id"`
Username string `json:"username"`
Admin bool `json:"admin"`
}
// CurrentUser runs GET /session/current.json.
func (c *Client) CurrentUser(ctx context.Context) (*CurrentUser, error) {
var payload struct {
CurrentUser CurrentUser `json:"current_user"`
}
if err := c.Get(ctx, "/session/current.json", &payload); err != nil {
return nil, err
}
if payload.CurrentUser.Username == "" {
return nil, fmt.Errorf("%w: no current_user in response", ErrMalformedResponse)
}
return &payload.CurrentUser, nil
}
+149
View File
@@ -0,0 +1,149 @@
// Command fakediscourse is the smoke-test Discourse: a tiny in-memory
// instance enforcing Api-Key auth, serving exactly what the client covers
// (current user, categories, topics, posts). It exists so the smoke test
// can drive the REAL CLI binary end to end without ever touching a live
// forum. Not built into the library, never shipped.
package main
import (
"encoding/json"
"fmt"
"log"
"net/http"
"os"
"strconv"
"strings"
"sync"
)
const smokeKey = "smoke-key-do-not-use"
type server struct {
mu sync.Mutex
cats []map[string]any
posts map[int]map[string]any
topics []map[string]any
nextCat int
nextPost int
nextT int
}
func main() {
addr := ":8610"
if len(os.Args) == 3 && os.Args[1] == "-addr" {
addr = os.Args[2]
}
s := &server{
cats: []map[string]any{
{"id": 1, "name": "General", "slug": "general", "color": "0088CC", "text_color": "FFFFFF", "topic_count": 0},
{"id": 2, "name": "MOPAC Briefings", "slug": "mopac-briefings", "color": "3AB54A", "text_color": "FFFFFF", "topic_count": 0},
},
posts: map[int]map[string]any{},
nextCat: 3,
nextPost: 100,
nextT: 10,
}
mux := http.NewServeMux()
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
if r.Header.Get("Api-Key") != smokeKey || r.Header.Get("Api-Username") != "smoker" {
reply(w, 403, map[string]any{"errors": []string{"Bad or missing API key"}})
return
}
s.mu.Lock()
defer s.mu.Unlock()
path := r.URL.Path
switch {
case path == "/session/current.json" && r.Method == "GET":
reply(w, 200, map[string]any{"current_user": map[string]any{"id": 7, "username": "smoker", "admin": true}})
case path == "/categories.json" && r.Method == "GET":
reply(w, 200, map[string]any{"category_list": map[string]any{"categories": s.cats}})
case path == "/categories.json" && r.Method == "POST":
var req map[string]any
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
reply(w, 400, map[string]any{"errors": []string{"bad json"}})
return
}
name, _ := req["name"].(string)
cat := map[string]any{
"id": s.nextCat, "name": name,
"slug": strings.ToLower(strings.ReplaceAll(name, " ", "-")),
"color": orDefault(req["color"], "3AB54A"), "text_color": orDefault(req["text_color"], "FFFFFF"),
"topic_count": 0,
}
s.nextCat++
s.cats = append(s.cats, cat)
reply(w, 200, cat)
case path == "/posts.json" && r.Method == "POST":
var req map[string]any
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
reply(w, 400, nil)
return
}
topicID, _ := req["topic_id"].(float64)
pid := s.nextPost
s.nextPost++
if topicID == 0 {
title, _ := req["title"].(string)
catID, _ := req["category"].(float64)
tid := s.nextT
s.nextT++
slug := strings.ToLower(strings.ReplaceAll(title, " ", "-"))
s.topics = append(s.topics, map[string]any{"id": tid, "title": title, "slug": slug, "category_id": int(catID)})
s.posts[pid] = map[string]any{"id": pid, "topic_id": tid, "raw": req["raw"], "post_number": 1}
reply(w, 200, map[string]any{"id": pid, "topic_id": tid, "topic_slug": slug})
return
}
s.posts[pid] = map[string]any{"id": pid, "topic_id": int(topicID), "raw": req["raw"], "post_number": 2}
reply(w, 200, map[string]any{"id": pid, "topic_id": int(topicID), "topic_slug": "existing"})
case strings.HasPrefix(path, "/posts/") && r.Method == "PUT":
id, _ := strconv.Atoi(strings.SplitN(strings.TrimPrefix(path, "/posts/"), ".", 2)[0])
var body struct {
Post struct {
Raw string `json:"raw"`
EditReason string `json:"edit_reason"`
} `json:"post"`
}
if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
reply(w, 400, nil)
return
}
p, ok := s.posts[id]
if !ok {
reply(w, 404, nil)
return
}
p["raw"] = body.Post.Raw
s.posts[id] = p
reply(w, 200, map[string]any{"post": p})
case strings.HasPrefix(path, "/c/") && r.Method == "GET":
reply(w, 200, map[string]any{"topic_list": map[string]any{"topics": s.topics}})
case path == "/latest.json" && r.Method == "GET":
reply(w, 200, map[string]any{"topic_list": map[string]any{"topics": s.topics}})
default:
reply(w, 404, map[string]any{"errors": []string{"not found on the smoke instance"}})
}
})
fmt.Printf("fakediscourse listening on %s (api-key enforced)\n", addr)
log.Fatal(http.ListenAndServe(addr, mux))
}
func reply(w http.ResponseWriter, code int, body any) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(code)
_ = json.NewEncoder(w).Encode(body)
}
func orDefault(v any, def string) any {
if s, ok := v.(string); ok && s != "" {
return s
}
return def
}
Executable
+113
View File
@@ -0,0 +1,113 @@
# End-to-end smoke for discourse-go: builds the CLI in the Docker
# builder, boots the FAKE Discourse in a container on 127.0.0.1:8610,
# drives the real binary from the host through env vars (0600 temp env
# file), asserts the happy paths + failure classes + redaction, and tears
# everything down. No live forum is ever contacted. Only exact container
# IDs spawned here are killed.
set -e
cd "$(dirname "$0")/.."
IMAGE="golang@sha256:e8c859f5632dcfde7b32d2012b4351728f6437930887c2f6a91ea242459e5514"
PORT=8610
SMOKE_KEY="smoke-key-do-not-use"
CID=""
cleanup() {
if [ -n "$CID" ]; then
docker rm -f "$CID" >/dev/null 2>&1 || true
fi
rm -rf .smoke
}
trap cleanup EXIT INT TERM
mkdir -p .smoke
umask 077
echo "--- build CLI (docker builder)"
docker run --rm -v "$PWD:/h" -w /h \
-u "$(id -u):$(id -g)" -e HOME=/tmp -e GOFLAGS=-buildvcs=false \
"$IMAGE" go build -o bin/discourse-go ./cmd/discourse-go
echo "--- boot fake Discourse (container, port $PORT)"
CID=$(docker run -d --rm \
-v "$PWD:/h" -w /h \
-u "$(id -u):$(id -g)" -e HOME=/tmp -e GOFLAGS=-buildvcs=false \
-p 127.0.0.1:$PORT:8610 \
"$IMAGE" go run ./smoke/fakediscourse -addr :8610)
# wait for the fake to answer (any HTTP response proves it is up)
wait_up() {
python3 - "$PORT" <<'PYEOF'
import sys, urllib.request, urllib.error
port = sys.argv[1]
req = urllib.request.Request('http://127.0.0.1:%s/session/current.json' % port,
headers={'Api-Key': 'probe', 'Api-Username': 'probe'})
try:
urllib.request.urlopen(req, timeout=2)
except urllib.error.HTTPError:
sys.exit(0) # got an HTTP answer: server is up
except Exception:
sys.exit(1) # not yet
sys.exit(0)
PYEOF
}
i=0
until [ -n "$CID" ] && [ "$(docker inspect -f '{{.State.Running}}' "$CID" 2>/dev/null)" = "true" ] && wait_up; do
i=$((i+1))
if [ "$i" -ge 60 ]; then
echo "smoke: fake server did not come up; logs:" >&2
docker logs "$CID" >&2 || true
exit 1
fi
sleep 1
done
# 0600 env file = the credential path the docs prescribe
ENVF=".smoke/env"
printf 'DISCOURSE_URL=http://127.0.0.1:%s\nDISCOURSE_API_KEY=%s\nDISCOURSE_API_USERNAME=smoker\n' \
"$PORT" "$SMOKE_KEY" > "$ENVF"
CLI() {
( set -a; . "$ENVF"; set +a; exec ./bin/discourse-go "$@" )
}
capture="$PWD/.smoke/out"
touch "$capture"
echo "--- whoami"
CLI whoami | tee -a "$capture" | grep -q '"username": "smoker"' || { echo "smoke: whoami failed" >&2; exit 1; }
echo "--- categories list"
CLI categories list | tee -a "$capture" | grep -q '"mopac-briefings"' || { echo "smoke: categories list failed" >&2; exit 1; }
echo "--- categories create + typed 404 check"
CLI categories create "Smoke Cat" -color 25AAE2 | tee -a "$capture" | grep -q '"slug": "smoke-cat"' || { echo "smoke: category create failed" >&2; exit 1; }
CLI raw POST /definitely/not/there -data '{}' 2>>"$capture" >>"$capture" || true
grep -q "not found" "$capture" || { echo "smoke: 404 class missing" >&2; exit 1; }
echo "--- topics create / list / post reply / update"
CLI topics create -title "Smoke Topic" -category 2 -raw "first body" | tee -a "$capture" | grep -q '"topic_id"' || { echo "smoke: topic create failed" >&2; exit 1; }
CLI topics list -category 2 | tee -a "$capture" | grep -q '"Smoke Topic"' || { echo "smoke: topics list failed" >&2; exit 1; }
CLI topics list -slug mopac-briefings | tee -a "$capture" | grep -q '"Smoke Topic"' || { echo "smoke: topics list by slug failed" >&2; exit 1; }
POST_ID=$(CLI posts create -topic 10 -raw "reply body" | python3 -c 'import json,sys; print(json.load(sys.stdin)["id"])')
CLI posts update "$POST_ID" -raw "edited body" -reason smoke | tee -a "$capture" | grep -q '"raw": "edited body"' || { echo "smoke: post update failed" >&2; exit 1; }
echo "--- raw passthrough"
CLI raw GET /latest.json | tee -a "$capture" | grep -q '"topic_list"' || { echo "smoke: raw GET failed" >&2; exit 1; }
echo "--- redaction: no key material in any captured output"
if grep -q "$SMOKE_KEY" "$capture"; then
echo "smoke: KEY LEAKED in output" >&2
exit 1
fi
echo "--- bad key: exit code 2 + typed error"
set +e
( set -a; . "$ENVF"; set +a; DISCOURSE_API_KEY=wrong-key exec ./bin/discourse-go whoami ) >"$PWD/.smoke/bad" 2>&1
code=$?
set -e
if [ "$code" -ne 2 ]; then echo "smoke: bad key exit=$code want 2" >&2; exit 1; fi
grep -q "HTTP 403" "$PWD/.smoke/bad" || { echo "smoke: typed error missing" >&2; exit 1; }
echo "smoke: OK"
+137
View File
@@ -0,0 +1,137 @@
// Topics: create (POST /posts.json — Discourse creates topics by posting
// the first post with a title), list per category (GET /c/<...>.json) and
// latest (GET /latest.json), fetch one (GET /t/<id>.json).
package discourse
import (
"context"
"fmt"
"strings"
)
// TopicSummary is one row of a topic list.
type TopicSummary struct {
ID int `json:"id"`
Title string `json:"title"`
Slug string `json:"slug"`
CategoryID int `json:"category_id"`
PostsCount int `json:"posts_count"`
CreatedAt string `json:"created_at"`
UpdatedAt string `json:"updated_at"`
Closed bool `json:"closed"`
Archived bool `json:"archived"`
}
// Topic is the full topic payload (GET /t/<id>.json); posts live under
// PostStream.Posts.
type Topic struct {
ID int `json:"id"`
Title string `json:"title"`
Slug string `json:"slug"`
CategoryID int `json:"category_id"`
CreatedAt string `json:"created_at"`
Closed bool `json:"closed"`
Archived bool `json:"archived"`
PostStream struct {
Posts []Post `json:"posts"`
} `json:"post_stream"`
}
// CreateTopicRequest creates a topic: title + markdown body + category.
type CreateTopicRequest struct {
Title string `json:"title"`
Raw string `json:"raw"`
Category int `json:"category"`
Tags []string `json:"tags,omitempty"`
}
// CreateTopicResult is the POST /posts.json response for a topic
// creation: the first post's id plus the new topic's id and slug.
type CreateTopicResult struct {
PostID int `json:"id"`
TopicID int `json:"topic_id"`
TopicSlug string `json:"topic_slug"`
}
// URL renders the topic's canonical URL on this instance.
func (r CreateTopicResult) URL(baseURL string) string {
if r.TopicID == 0 {
return ""
}
slug := r.TopicSlug
if slug == "" {
slug = "topic"
}
return strings.TrimSuffix(baseURL, "/") + "/t/" + slug + "/" + fmt.Sprint(r.TopicID)
}
// CreateTopic posts a new topic into the category and returns its ids.
func (c *Client) CreateTopic(ctx context.Context, req CreateTopicRequest) (*CreateTopicResult, error) {
if strings.TrimSpace(req.Title) == "" {
return nil, fmt.Errorf("%w: topic title is required", ErrInvalidRequest)
}
if req.Category == 0 {
return nil, fmt.Errorf("%w: topic category id is required", ErrInvalidRequest)
}
var out CreateTopicResult
if err := c.Post(ctx, "/posts.json", req, &out); err != nil {
return nil, err
}
if out.TopicID == 0 {
return nil, fmt.Errorf("%w: topic created but response carries no topic_id", ErrMalformedResponse)
}
return &out, nil
}
// ListTopics returns the topic list of a category, addressed by id
// (GET /c/<id>.json) or slug (GET /c/<slug>.json). Pass slug="" with id>0
// or id=0 with a slug.
func (c *Client) ListTopics(ctx context.Context, id int, slug string) ([]TopicSummary, error) {
if id == 0 && slug == "" {
return nil, fmt.Errorf("%w: category id or slug is required", ErrInvalidRequest)
}
var path string
if id > 0 {
if slug != "" {
path = "/c/" + quotePathSegment(slug) + "/" + fmt.Sprint(id) + ".json"
} else {
path = "/c/" + fmt.Sprint(id) + ".json"
}
} else {
path = "/c/" + quotePathSegment(slug) + ".json"
}
var payload struct {
TopicList struct {
Topics []TopicSummary `json:"topics"`
} `json:"topic_list"`
}
if err := c.Get(ctx, path, &payload); err != nil {
return nil, err
}
return payload.TopicList.Topics, nil
}
// LatestTopics returns the instance's latest topic list (GET /latest.json).
func (c *Client) LatestTopics(ctx context.Context) ([]TopicSummary, error) {
var payload struct {
TopicList struct {
Topics []TopicSummary `json:"topics"`
} `json:"topic_list"`
}
if err := c.Get(ctx, "/latest.json", &payload); err != nil {
return nil, err
}
return payload.TopicList.Topics, nil
}
// GetTopic fetches one topic by id, posts included.
func (c *Client) GetTopic(ctx context.Context, id int) (*Topic, error) {
if id <= 0 {
return nil, fmt.Errorf("%w: topic id must be > 0", ErrInvalidRequest)
}
var topic Topic
if err := c.Get(ctx, "/t/"+fmt.Sprint(id)+".json", &topic); err != nil {
return nil, err
}
return &topic, nil
}