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https://github.com/langbot-app/LangBot.git
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RockChinQ
20a04a77bf
* feat(plugin): add certified admission policy * feat(plugin): enforce certified archive admission * chore(plugin): pin certified SDK beta * fix(plugin): consume SDK beta 5 * style(plugin): format certification admission
75 lines
3.7 KiB
Markdown
75 lines
3.7 KiB
Markdown
# Certified Plugins
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## Admission boundary
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Core verifies a plugin archive **before** artifact storage, `PluginSetting`
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persistence, or a Plugin Runtime apply request. It calls the SDK public
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`langbot_plugin.certification.verify_archive()` API, which reads the strict
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certificate envelope from the ZIP comment and verifies the signed normalized
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ZIP digest without extracting the payload.
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Core retains the normalized digest (`normalized_zip_digest()`), verification
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state, declared shared-runtime profile, key ID, selected admission profile, and
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stable admission code in the durable plugin `install_info._certification`
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record. The record belongs to the installation row; no schema migration is
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needed for this additive JSON metadata.
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## Trusted issuer configuration
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Configure the non-secret Ed25519 public-key ring in `data/config.yaml`:
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```yaml
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plugin:
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certification:
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trusted_public_keys:
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issuer-2026-q3: "<base64 encoded 32-byte Ed25519 public key>"
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```
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Key IDs must match the SDK envelope. Values are standard base64 raw public
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keys, not private/signing keys. An invalid key-ring configuration is rejected
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rather than weakening verification. Keep active issuer keys during a rotation
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until archives signed by retired IDs are no longer installed.
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## Admission matrix
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| Deployment | SDK verification | Explicit `administrator_force` | Result |
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| --- | --- | --- | --- |
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| Cloud | valid envelope declaring `shared-runtime-v1` | any | admitted to the shared profile |
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| Cloud | absent | any | reject before storage with `CERTIFIED_PLUGIN_CLOUD_CERTIFICATE_REQUIRED` |
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| Cloud | malformed, untrusted, invalid, or non-shared | any | reject before storage with `CERTIFIED_PLUGIN_CLOUD_CERTIFICATE_INVALID` |
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| OSS | absent legacy envelope | any | admitted to the dedicated profile |
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| OSS | valid envelope declaring `shared-runtime-v1` | any | selected shared profile |
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| OSS | malformed or invalid declaration | false | reject with `CERTIFIED_PLUGIN_OSS_FORCE_REQUIRED` |
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| OSS | malformed or invalid declaration | true | admitted to the dedicated profile |
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`administrator_force` is deliberately strict: it is recognized only when the
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install request carries boolean `true`. The local upload endpoint accepts the
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multipart field `administrator_force=true`; GitHub and marketplace install
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payloads carry the same field. The existing resource-manage authorization fence
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protects those endpoints. A force never creates a Cloud dedicated fallback.
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## Runtime and logs
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The current Plugin Runtime control protocol has one process-wide runtime profile
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per Core instance. In Cloud that existing profile is `shared`; Cloud admission
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therefore prevents an archive that did not select `shared-runtime-v1` from
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reaching its apply API. In OSS the existing `oss_dev` runtime remains the
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dedicated compatibility profile. Core records the selected profile for every
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installation so a future multi-runtime control protocol can consume it without
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re-verifying an already persisted archive.
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The existing public plugin-log boundary already applies the immutable
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installation binding (including workspace UUID) through
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`RuntimeConnectionHandler.installation_scope()` before requesting logs. This is
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the actual tenant exposure boundary, so valid shared certificates use that
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binding-scoped transport; Core does not invent a second log stream or expose
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process-wide log output. Dedicated and invalid/legacy installations use the
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same existing installation scope.
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## SDK versioning
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Core intentionally continues to declare `langbot-plugin==0.5.8` until the SDK
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beta containing this public certification API is released. Local development
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and the integration tests may install the SDK source checkout, but this Core
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change does not publish or pin a prerelease.
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