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Community Solid Server release notes

v7.0.0

New features

  • The minimum supported Node version is now v18.
  • The StaticAssetHandler can now be used to link static pages to containers. This can be used to set a static page for the root container of a server. See the /config/app/init/static-root.json config for an example.

Data migration

No actions are required to migrate data.

Configuration changes

You might need to make changes to your v6 configuration if you use a custom config.

The @context needs to be updated to https://linkedsoftwaredependencies.org/bundles/npm/@solid/community-server/^7.0.0/components/context.jsonld.

The following changes pertain to the imports in the default configs:

  • There is a new static-root.json import option for app/init, setting a static page for the root container.

The following changes are relevant for v6 custom configs that replaced certain features.

  • /app/init/* imports have changed. Functionality remained the same though.
  • All imports that define storages have been updated with new storage classes.
    • /http/notifications/base/storage.json
    • /identity/*
    • /storage/keyvalue/storages/storages.json

Interface changes

These changes are relevant if you wrote custom modules for the server that depend on existing interfaces.

  • The AppRunner functions to create and start the server now take a singular arguments object as input.
  • Most of the key/value related storages had their constructors changed to allow more values.
  • EncodingPathStorage has been removed and its functionality split up over Base64EncodingStorage and ContainerPathStorage. HashEncodingPathStorage has similarly been replaced by introducing HashEncodingStorage.

v6.1.0

New features

  • Added support for HTTP Range headers.

v6.0.0

New features

  • The server can be configured to use ACP instead of WebACL. config/file-acp.json is an example of a configuration that uses this authorization scheme instead.
  • Support for the new Notification specification was added. See the documentation for further details.
  • All resources now have a storage description header as defined in the v0.10.0 Solid protocol specification.
  • The server configuration settings can be set from the package.json or .community-solid-server.config.json/.js files.

Data migration

No actions are required to migrate data.

Template changes

The expected format of template folders for generating pods or initializing the root has changed, see the templates/pod folder for an example. More specifically: each of those folders used is now expected to have multiple subfolders. The subfolder base will always be copied, whereas the subfolders acp and wac will only be copied if the corresponding access control system is enabled.

Configuration changes

You might need to make changes to your v5 configuration if you use a custom config.

The @context needs to be updated to https://linkedsoftwaredependencies.org/bundles/npm/@solid/community-server/^6.0.0/components/context.jsonld.

The following changes pertain to the imports in the default configs:

  • All default configurations which had setup disabled have been updated to also disable registration. This is done to prevent configurations with accidental nested storage containers.
  • All references to WebSockets have been removed from the http/middleware and http/server-factory imports.
  • A new http/notifications set of import options have been added to determine which notification specification a CSS instance should use. Most default configurations have been updated to use http/notifications/websockets.json.
  • ldp/authorization and util/auxiliary have new options to support ACP.
  • util/auxiliary/no-acl.json was renamed to util/auxiliary/empty.json.

The following changes are relevant for v5 custom configs that replaced certain features.

  • Updated template configs.
    • /app/main/general/templates.json was added to configure a generic template engine handler.
    • /app/main/default.json now imports the above config file.
    • All files configuring template engines.
  • Several minor changes due to support ACP.
    • /ldp/authorization/*
  • Resource generation was changed to there is 1 reusable resource generator.
    • /init/initializers/*
    • /setup/handlers/setup.json
    • /identity/access/initializers/*
    • /identity/pod/*
  • Creating an HTTP(S) server is now separate from attaching a handler to it.
    • /http/server-factory/*
  • The WebSocket middleware was moved to the relevant WebSocket configuration.
    • /http/middleware/*
  • Storage description support was added.
    • /http/handler/*
    • /ldp/metadata-writer/*
  • Notification support was added.
    • /http/handler/*
    • /notifications/*
  • IDP private key generation was moved to a separate generator class.
    • /identity/handler/*
  • The Read/Write lockers have changed slightly.
    • /util/resource-locker/file.json
    • /util/resource-locker/memory.json

Interface changes

These changes are relevant if you wrote custom modules for the server that depend on existing interfaces.

  • AgentGroupAccessChecker no longer accepts any input parameters.
  • The functions in Vocabularies.ts were renamed, the typings have been made more precise and several utility types were added.
  • The RepresentationConvetingStore options.inType was replaced with options.inPreferences.
  • Several changes to support ACP.
    • WebAclAuxiliaryReader was renamed to AuthAuxiliaryReader.
    • OwnerPermissionReader input parameter aclStrategy was renamed to authStrategy.
    • TemplatedResourcesGenerator has been renamed to BaseResourcesGenerator and has a different interface now.
  • CredentialSet was replaced by a single Credentials interface. PermissionSet and Permission were merged into a single interface. This impacts all authentication and authorization related classes.
  • HttpServerFactory.startServer function was renamed to createServer and is no longer expected to start the server.
  • GreedyReadWriteLocker constructor parameters have changed.

v5.1.0

New features

  • The --config CLI parameter now accepts multiple configuration paths, which will be combined.
  • The RedisLocker now accepts more configuration parameters.
  • IdentityProviderFactory takes an addition JwkGenerator as input.

v5.0.0

New features

  • Metadata of resources can now be edited by PATCHing its description resource. This has an impact on which requests are allowed. See the documentation for more information.
  • Components.js was upgraded to v5. If you have created an external component you should also upgrade to prevent warnings and conflicts.
  • The server can now run multithreaded with multiple workers. This is done with the --workers or -w flag.
  • File-based configurations now use a file-based locking system for true threadsafe locking.
  • The user can choose to "Log in with a different account" on the consent page.
  • Regex-based configurations now have ordered entries and use the first match found.
  • When starting the server through code, it is now possible to provide CLI value bindings as well in AppRunner.
  • Support for Node v12 was dropped.

Data migration

No actions are required to migrate data.

Configuration changes

You might need to make changes to your v4 configuration if you use a custom config.

The @context needs to be updated to https://linkedsoftwaredependencies.org/bundles/npm/@solid/community-server/^5.0.0/components/context.jsonld.

The following changes pertain to the imports in the default configs:

  • The prefix of all imports was changed from files-scs to css.
  • All default configurations with a file-based backend now use a file-based locker instead of a memory-based one, making them threadsafe.
  • 2 new options have been added for the /http/server-factory/ imports: https-websockets.json and https-no-websockets.json, which allow starting the server with HTTPS by adding 2 new CLI parameters httpsKey and httpsCert.
    • /https-file-cli.json was greatly simplified because of this change.
  • /sparql-file-storage.json had several changes, simplifying how regexes can be used.

The following changes are relevant for v4 custom configs that replaced certain features.

  • CLI parsing had several changes.
    • /app/variables/*
  • The SingleThreadedResourceLocker was renamed.
    • /util/resource-locker/memory.json
  • The content-length parser has been moved from the default configuration to the quota configurations.
    • /ldp/metadata-parser/default.json
    • /storage/backend/*-quota-file.json
    • /storage/backend/quota/*
  • Regex routing was updated to use ordered entries.
    • /storage/backend/regex.json
  • The IdentityProviderFactory inputs have been extended.
    • /identity/handler/provider-factory/identity.json
  • Restructured the init configs.
    • /app/init/*
    • /app/main/default.json
  • Added lock cleanup on server start.
    • /util/resource-locker/file.json
    • /util/resource-locker/redis.json
  • Updated finalizers.
    • /app/identity/handler/account-store/default.json
    • /identity/ownership/token.json
    • /ldp/authorization/readers/access-checkers/agent-group.json
    • /ldp/handler/*
  • IntermediateModesExtractor has been added to the ModesExtractors
    • /ldp/modes/default.json
  • The PermissionReader structure has changed to be more consistent.
    • /ldp/authorization/*
  • Several components now take a metadataStrategy parameter to support the new metadata feature.
    • /ldp/handler/components/operation-handler.json
    • /storage/backend/*
  • Generation of auxiliary link headers was updated.
    • /ldp/metadata-writer/writers/link-rel.json
  • The ConstantMetadataWriter that adds the MS-Author-Via header was removed
    • /ldp/metadata-writer/default.json
  • PATCHing related components were completely refactored.
    • /storage/middleware/stores/patching.json
  • The metadata auxiliary strategy was added to the default list of auxiliary strategies.
    • /util/auxiliary/*
  • Parsing link headers became more flexible.
    • /ldp/metadata-parser/parsers/link.json

Interface changes

A new interface SingleThreaded has been added. This empty interface can be implemented to mark a component as not-threadsafe. When the CSS starts in multithreaded mode, it will error and halt if any SingleThreaded components are instantiated.

These changes are relevant if you wrote custom modules for the server that depend on existing interfaces.

  • YargsCliExtractor was changed to now take as input an array of parameter objects.
  • RedirectAllHttpHandler was removed and fully replaced by RedirectingHttpHandler.
  • SingleThreadedResourceLocker has been renamed to MemoryResourceLocker.
  • Both TemplateEngine implementations now take a baseUrl parameter as input.
  • The IdentityProviderFactory and ConvertingErrorHandler now additionally take a PreferenceParser as input.
  • Error handlers now take the incoming HttpRequest as input instead of just the preferences.
  • Extended the initialization/finalization system:
    • Introduced Initializable interface and InitializableHandler wrapper class.
    • Introduced Finalizer abstract class and FinalizableHandler wrapper class.
    • Changed type for finalizer attribute in App from Finalizable to Finalizer and updated the calling code in App.stop().
    • Removed the now obsolete ParallelFinalizer util class.
  • Added a lock cleanup on initialize for lock implementations RedisLocker and FileSystemResourceLocker.
  • ResourceStore functions that change a resource now return metadata for every changed resource.
  • All permission related interfaces have changed to support permissions over multiple identifiers.
  • IdentifierStrategy has a new contains method.
  • SettingsResolver was renamed to ShorthandResolver, together with all related classes and parameters.
  • The DataAccessor interface is changed. There is now a new method called writeMetadata.
  • Many patching related classes were changed.

v4.1.0

New features

  • Environment variables can be used instead of CLI arguments if preferred.

v4.0.1

Freezes the oidc-provider dependency to prevent a potential issue with the solid authn client as described in inrupt/solid-client-authn-js#2103.

v4.0.0

New features

  • The server can be started with a new parameter to automatically generate accounts and pods, for more info see here.
  • It is now possible to automate authentication requests using Client Credentials, for more info see here.
  • A new RedirectingHttpHandler class has been added which can be used to redirect certain URLs.
  • A new default configuration config/https-file-cli.json that can set the HTTPS parameters through the CLI has been added. This is also an example of how to add CLI parameters through a custom configuration.
  • A new RedisLocker has been added to replace the old RedisResourceLocker class. It allows for true threadsafe read/write locking.

Configuration changes

You might need to make changes to your v3 configuration if you use a custom config.

The @context needs to be updated to https://linkedsoftwaredependencies.org/bundles/npm/@solid/community-server/^4.0.0/components/context.jsonld.

The following changes pertain to the imports in the default configs:

  • ...

The following changes are relevant for v3 custom configs that replaced certain features.

  • The key/value storage configs in config/storage/key-value/* have been changed to reduce config duplication. All storages there that were only relevant for 1 class have been moved to the config of that class.
  • Due to a parameter rename in CombinedSettingsResolver, config/app/variables/resolver/resolver.json has been updated.
  • The OIDC provider setup was changed to add client_credentials support.
    • /identity/handler/adapter-factory/webid.json
    • /identity/handler/provider-factory/identity.json

Interface changes

These changes are relevant if you wrote custom modules for the server that depend on existing interfaces.

  • The output of parseContentType in HeaderUtil was changed to include parameters.
  • PermissionReaders take an additional modes parameter as input.
  • The ResourceStore function resourceExists has been renamed to hasResource and has been moved to a separate ResourceSet interface.
  • Several ModesExtractors PermissionBasedAuthorizer now take a ResourceSet as constructor parameter.
  • RepresentationMetadata no longer accepts strings for predicates in any of its functions.
  • CombinedSettingsResolver parameter computers has been renamed to resolvers.
  • IdentityProviderFactory requires an additional credentialStorage parameter.
  • The RedisResourceLocker class has been removed and the RedisLockerclass was added instead. RedisLocker implements both the ResourceLocker and ReadWriteLocker interface.

v3.0.0

New features

  • The Identity Provider now uses the webid scope as required for Solid-OIDC.
  • The VoidLocker can be used to disable locking for development/testing purposes. This can be enabled by changing the /config/util/resource-locker/ import to debug-void.json
  • Added support for setting a quota on the server. See the config/quota-file.json config for an example.
  • An official docker image is now built on each version tag and published at https://hub.docker.com/r/solidproject/community-server.
  • Added support for N3 Patch.
  • It is now possible to customize arguments to the community-solid-server command, which enables passing custom variables to configurations and setting new default values.
  • The AppRunner functions have changed to require Components.js variables. This is important for anyone who starts the server from code.
  • When logging in, a consent screen will now provide information about the client.

Data migration

The following actions are required if you are upgrading from a v2 server and want to retain your data.

Due to changes in the keys used by the IDP, you will need to delete the stored keys and sessions. If you are using a file backend, delete the .internal/idp/ folder in your data folder and restart the server. This will not delete the user accounts, but users will have to log in again.

Configuration changes

You might need to make changes to your v2 configuration if you use a custom config.

The @context needs to be updated to https://linkedsoftwaredependencies.org/bundles/npm/@solid/community-server/^3.0.0/components/context.jsonld.

The following changes pertain to the imports in the default configs:

  • A new configuration option needs to be imported:
    • /app/variables/default.json contains everything related to parsing CLI arguments and assigning values to variables.

The following changes are relevant for v2 custom configs that replaced certain features.

  • Conversion has been simplified so most converters are part of the conversion chain:
    • /util/representation-conversion/default.json
  • The IDP settings have changed to support the latest Solid-OIDC draft.
    • /identity/handler/provider-factory/identity.json
  • Requests targeting the OIDC library now use a separate handler.
    • /http/handler/default.json
    • /identity/handler/default.json
  • The architecture of IDP interaction handlers has completely changed to improve modularity
    • /identity/handler/interaction/*
    • /identity/registration/*

Interface changes

These changes are relevant if you wrote custom modules for the server that depend on existing interfaces.

  • TypedRepresentationConverter function signatures changed and base functionality moved to BaseTypedRepresentationConverter.
  • Many changes to several components related to the IDP. This includes the HTML templates.

v2.0.0

New features

  • Pod owners always have Control access to resources stored in their Pod.
  • The server now offers a one-time setup upon first boot. This can be accessed by going to /setup. Configurations with a persistent backend enforce setup before the server can be used, preventing unintended modifications in the backend. These have corresponding *-no-setup.json files where setup is disabled, so the pre-v2.0 behavior is still available.
  • ETag, Last-Modified, If-None-Match, and related conditional headers are supported.
  • PATCHing containers is now supported.
  • PUT/POST requests with empty bodies are supported.
  • WebACL authorization supports groups.
  • IDP components (registration, login, etc.) fully support JSON input and output.
  • There is a new configuration sparql-file-storage.json to have a SPARQL backend with file storage. sparql-file-storage.json.
  • A server can be set up to restrict access to IDP components using WebACL. A consequence of this is that IDP components are only accessible using a trailing slash. E.g., /idp/register/ works, /idp/register will error.

Configuration changes

You might need to make changes to your v1 configuration if you use a custom config.

The following changes pertain to the imports in the default configs:

  • There are 2 new configuration options that for which a valid option needs to be imported:
    • /app/setup determines how and if setup should be enabled.
    • /identity/access determines if IDP access (e.g., registration) should be restricted
  • The /app/init/default.json configuration no longer initializes the root container. This behaviour has been moved to the other options for /app/init.
  • /ldp/permissions changed to /ldp/modes and only has a default option now.

The following changes are relevant for v1 custom configs that replaced certain features. The path indicates which JSON-LD files were impacted by the change.

  • IdentityProviderHttpHandler and InteractionRoute arguments have changed substantially.
    • /identity/handler/default.json
    • /identity/handler/interaction/*
    • /identity/registration/*.
  • All internal storage is now stored in the /.internal/ container.
    • /storage/key-value/resource-store.json.
  • Patching related classes have changed.
    • /storage/middleware/stores/patching.json.
  • BasicRequestParser now needs a conditionsParser argument.
    • /ldp/handler/components/request-parser.json.
  • LinkTypeParser has been renamed to LinkRelParser and now takes mappings as input.
    • /ldp/metadata-parser/*
  • ComposedAuxiliaryStrategy isRootRequired has been renamed to requiredInRoot.
    • /util/auxiliary/strategies/acl.json.
  • Many changes to authentication and authorization structure.
    • Config /ldp/authentication/* and /ldp/authorization/*.
  • All HttpHandlers have been changed.
    • /app/setup/handlers/setup.json
    • /http/handler/default.json
    • /identity/handler/default.json
    • /ldp/handler/default.json.

v1.1.0

New features

  • The ConstantConverter can now filter on media type using the enabledMediaRanges and disabledMediaRanges options. That way, the server can be configured to bypass a default UI when accessing images or PDF documents (#895, #925).

v1.0.0

First release of the Community Solid Server.