- Add `format:"uri"` to `Group.AvatarURL` (matches `User.AvatarURL`
field)
- `<user_id>` and `<group_id>` were backwards in the `example:` tags
- The `@Success` annotation for `/acl [get]` had an incorrect type
# Add MCP HTTP Server Experiment
This PR adds a new experiment flag `mcp-server-http` to enable the MCP HTTP server functionality. The changes include:
1. Added a new experiment constant `ExperimentMCPServerHTTP` with the value "mcp-server-http"
2. Added display name and documentation for the new experiment
3. Improved the experiment middleware to:
- Support requiring multiple experiments
- Provide better error messages with experiment display names
- Add a development mode bypass option
4. Applied the new experiment requirement to the MCP HTTP endpoint
5. Replaced the custom OAuth2 middleware with the standard experiment middleware
The PR also improves the `Enabled()` method on the `Experiments` type by using `slices.Contains()` for better readability.
# Add OAuth2 Provider Functionality as an Experiment
This PR adds a new experiment flag `oauth2` that enables OAuth2 provider functionality in Coder. When enabled, this experiment allows Coder to act as an OAuth2 provider.
The changes include:
- Added the new `ExperimentOAuth2` constant with appropriate documentation
- Updated the OAuth2 provider middleware to check for the experiment flag
- Modified the error message to indicate that the OAuth2 provider requires enabling the experiment
- Added the new experiment to the known experiments list in the SDK
Previously, OAuth2 provider functionality was only available in development mode. With this change, it can be enabled in production environments by activating the experiment.
# Add MCP HTTP server with streamable transport support
- Add MCP HTTP server with streamable transport support
- Integrate with existing toolsdk for Coder workspace operations
- Add comprehensive E2E tests with OAuth2 bearer token support
- Register MCP endpoint at /api/experimental/mcp/http with authentication
- Support RFC 6750 Bearer token authentication for MCP clients
Change-Id: Ib9024569ae452729908797c42155006aa04330af
Signed-off-by: Thomas Kosiewski <tk@coder.com>
# Implement OAuth2 Dynamic Client Registration (RFC 7591/7592)
This PR implements OAuth2 Dynamic Client Registration according to RFC 7591 and Client Configuration Management according to RFC 7592. These standards allow OAuth2 clients to register themselves programmatically with Coder as an authorization server.
Key changes include:
1. Added database schema extensions to support RFC 7591/7592 fields in the `oauth2_provider_apps` table
2. Implemented `/oauth2/register` endpoint for dynamic client registration (RFC 7591)
3. Added client configuration management endpoints (RFC 7592):
- GET/PUT/DELETE `/oauth2/clients/{client_id}`
- Registration access token validation middleware
4. Added comprehensive validation for OAuth2 client metadata:
- URI validation with support for custom schemes for native apps
- Grant type and response type validation
- Token endpoint authentication method validation
5. Enhanced developer documentation with:
- RFC compliance guidelines
- Testing best practices to avoid race conditions
- Systematic debugging approaches for OAuth2 implementations
The implementation follows security best practices from the RFCs, including proper token handling, secure defaults, and appropriate error responses. This enables third-party applications to integrate with Coder's OAuth2 provider capabilities programmatically.
This change adds a new `docker-devcontainer` template which allows you
to provision a workspace running in Docker, that also creates workspaces
via Docker running inside (DinD).
- **chore(examples/templates): rename `docker-devcontainer` to
`docker-envbuilder`**
- **feat(examples/templates): add `docker-devcontainer` example
template**
# Add OAuth2 Protected Resource Metadata Endpoint
This PR implements the OAuth2 Protected Resource Metadata endpoint according to RFC 9728. The endpoint is available at `/.well-known/oauth-protected-resource` and provides information about Coder as an OAuth2 protected resource.
Key changes:
- Added a new endpoint at `/.well-known/oauth-protected-resource` that returns metadata about Coder as an OAuth2 protected resource
- Created a new `OAuth2ProtectedResourceMetadata` struct in the SDK
- Added tests to verify the endpoint functionality
- Updated API documentation to include the new endpoint
The implementation currently returns basic metadata including the resource identifier and authorization server URL. The `scopes_supported` field is empty until a scope system based on RBAC permissions is implemented. The `bearer_methods_supported` field is omitted as Coder uses custom authentication methods rather than standard RFC 6750 bearer tokens.
A TODO has been added to implement RFC 6750 bearer token support in the future.
This PR provides two commands:
* `coder prebuilds pause`
* `coder prebuilds resume`
These allow the suspension of all prebuilds activity, intended for use
if prebuilds are misbehaving.
add a new section specifically about how to disable path-based apps to
the security best practices doc
## todo
- [x] copy review
- [x] cross-linking
---------
Co-authored-by: EdwardAngert <17991901+EdwardAngert@users.noreply.github.com>
Co-authored-by: Dean Sheather <dean@deansheather.com>
## Summary
This PR implements critical MCP OAuth2 compliance features for Coder's authorization server, adding PKCE support, resource parameter handling, and OAuth2 server metadata discovery. This brings Coder's OAuth2 implementation significantly closer to production readiness for MCP (Model Context Protocol)
integrations.
## What's Added
### OAuth2 Authorization Server Metadata (RFC 8414)
- Add `/.well-known/oauth-authorization-server` endpoint for automatic client discovery
- Returns standardized metadata including supported grant types, response types, and PKCE methods
- Essential for MCP client compatibility and OAuth2 standards compliance
### PKCE Support (RFC 7636)
- Implement Proof Key for Code Exchange with S256 challenge method
- Add `code_challenge` and `code_challenge_method` parameters to authorization flow
- Add `code_verifier` validation in token exchange
- Provides enhanced security for public clients (mobile apps, CLIs)
### Resource Parameter Support (RFC 8707)
- Add `resource` parameter to authorization and token endpoints
- Store resource URI and bind tokens to specific audiences
- Critical for MCP's resource-bound token model
### Enhanced OAuth2 Error Handling
- Add OAuth2-compliant error responses with proper error codes
- Use standard error format: `{"error": "code", "error_description": "details"}`
- Improve error consistency across OAuth2 endpoints
### Authorization UI Improvements
- Fix authorization flow to use POST-based consent instead of GET redirects
- Remove dependency on referer headers for security decisions
- Improve CSRF protection with proper state parameter validation
## Why This Matters
**For MCP Integration:** MCP requires OAuth2 authorization servers to support PKCE, resource parameters, and metadata discovery. Without these features, MCP clients cannot securely authenticate with Coder.
**For Security:** PKCE prevents authorization code interception attacks, especially critical for public clients. Resource binding ensures tokens are only valid for intended services.
**For Standards Compliance:** These are widely adopted OAuth2 extensions that improve interoperability with modern OAuth2 clients.
## Database Changes
- **Migration 000343:** Adds `code_challenge`, `code_challenge_method`, `resource_uri` to `oauth2_provider_app_codes`
- **Migration 000343:** Adds `audience` field to `oauth2_provider_app_tokens` for resource binding
- **Audit Updates:** New OAuth2 fields properly tracked in audit system
- **Backward Compatibility:** All changes maintain compatibility with existing OAuth2 flows
## Test Coverage
- Comprehensive PKCE test suite in `coderd/identityprovider/pkce_test.go`
- OAuth2 metadata endpoint tests in `coderd/oauth2_metadata_test.go`
- Integration tests covering PKCE + resource parameter combinations
- Negative tests for invalid PKCE verifiers and malformed requests
## Testing Instructions
```bash
# Run the comprehensive OAuth2 test suite
./scripts/oauth2/test-mcp-oauth2.sh
Manual Testing with Interactive Server
# Start Coder in development mode
./scripts/develop.sh
# In another terminal, set up test app and run interactive flow
eval $(./scripts/oauth2/setup-test-app.sh)
./scripts/oauth2/test-manual-flow.sh
# Opens browser with OAuth2 flow, handles callback automatically
# Clean up when done
./scripts/oauth2/cleanup-test-app.sh
Individual Component Testing
# Test metadata endpoint
curl -s http://localhost:3000/.well-known/oauth-authorization-server | jq .
# Test PKCE generation
./scripts/oauth2/generate-pkce.sh
# Run specific test suites
go test -v ./coderd/identityprovider -run TestVerifyPKCE
go test -v ./coderd -run TestOAuth2AuthorizationServerMetadata
```
### Breaking Changes
None. All changes maintain backward compatibility with existing OAuth2 flows.
---
Change-Id: Ifbd0d9a543d545f9f56ecaa77ff2238542ff954a
Signed-off-by: Thomas Kosiewski <tk@coder.com>
## Description
This PR adds a warning to the prebuilds documentation about
incompatibility with Workspace schedule (autostart/autostop), dormancy,
and DevContainers. These configurations can interfere with prebuild
behavior and should be avoided for now.
Preview:
This PR replaces the use of the **container** ID with the
**devcontainer** ID. This is a breaking change. This allows rebuilding a
devcontainer when there is no valid container ID.
When in experimental this was used as an escape hatch. Removed to be
consistent with the template author's intentions
Backwards compatible, removing an experimental api field that is no longer used.
Fixes https://github.com/coder/coder/issues/17840
NOTE: calling this out as a breaking change so that it is highly visible
in the changelog.
* CLI: Modifies `coder update` to stop the workspace if already running.
* UI: Modifies "update" button to always stop the workspace if already
running.
"Idle" is more accurate than "complete" since:
1. AgentAPI only knows if the screen is active; it has no way of knowing
if the task is complete.
2. The LLM might be done with its current prompt, but that does not mean
the task is complete either (it likely needs refinement).
The "complete" state will be reserved for future definition.
Additionally, in the case where the screen goes idle but the LLM never
reported a status update, we can get an idle icon without a message, and
it looks kinda janky in the UI so if there is no message I display the
state text.
Closes https://github.com/coder/internal/issues/699
## Description
This PR adds support for deleting prebuilt workspaces via the
authorization layer. It introduces special-case handling to ensure that
`prebuilt_workspace` permissions are evaluated when attempting to delete
a prebuilt workspace, falling back to the standard `workspace` resource
as needed.
Prebuilt workspaces are a subset of workspaces, identified by having
`owner_id` set to `PREBUILD_SYSTEM_USER`.
This means:
* A user with `prebuilt_workspace.delete` permission is allowed to
**delete only prebuilt workspaces**.
* A user with `workspace.delete` permission can **delete both normal and
prebuilt workspaces**.
⚠️ This implementation is scoped to **deletion operations only**. No
other operations are currently supported for the `prebuilt_workspace`
resource.
To delete a workspace, users must have the following permissions:
* `workspace.read`: to read the current workspace state
* `update`: to modify workspace metadata and related resources during
deletion (e.g., updating the `deleted` field in the database)
* `delete`: to perform the actual deletion of the workspace
## Changes
* Introduced `authorizeWorkspace()` helper to handle prebuilt workspace
authorization logic.
* Ensured both `prebuilt_workspace` and `workspace` permissions are
checked.
* Added comments to clarify the current behavior and limitations.
* Moved `SystemUserID` constant from the `prebuilds` package to the
`database` package `PrebuildsSystemUserID` to resolve an import cycle
(commit
f24e4ab4b6).
* Update middleware `ExtractOrganizationMember` to include system user
members.
Deletion of data is uncommon in our database, so the introduction of sub agents
and the deletion of them introduced issues with foreign key assumptions, as can
be seen in coder/internal#685. We could have only addressed the specific case by
allowing cascade deletion of stats as well as handling in the stats collector,
but it's unclear how many more such edge-cases we could run into.
In this change, we mark the rows as deleted via boolean instead, and filter them
out in all relevant queries.
Fixescoder/internal#685
