321 lines
20 KiB
Go
321 lines
20 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package processing
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import (
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"context"
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"net/http"
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"net/url"
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"git.iim.gay/grufwub/go-store/kv"
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"github.com/sirupsen/logrus"
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apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
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"github.com/superseriousbusiness/gotosocial/internal/config"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/federation"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/media"
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"github.com/superseriousbusiness/gotosocial/internal/messages"
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"github.com/superseriousbusiness/gotosocial/internal/oauth"
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"github.com/superseriousbusiness/gotosocial/internal/processing/account"
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"github.com/superseriousbusiness/gotosocial/internal/processing/admin"
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mediaProcessor "github.com/superseriousbusiness/gotosocial/internal/processing/media"
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"github.com/superseriousbusiness/gotosocial/internal/processing/status"
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"github.com/superseriousbusiness/gotosocial/internal/processing/streaming"
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"github.com/superseriousbusiness/gotosocial/internal/stream"
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"github.com/superseriousbusiness/gotosocial/internal/timeline"
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"github.com/superseriousbusiness/gotosocial/internal/typeutils"
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"github.com/superseriousbusiness/gotosocial/internal/visibility"
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)
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// Processor should be passed to api modules (see internal/apimodule/...). It is used for
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// passing messages back and forth from the client API and the federating interface, via channels.
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// It also contains logic for filtering which messages should end up where.
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// It is designed to be used asynchronously: the client API and the federating API should just be able to
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// fire messages into the processor and not wait for a reply before proceeding with other work. This allows
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// for clean distribution of messages without slowing down the client API and harming the user experience.
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type Processor interface {
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// Start starts the Processor, reading from its channels and passing messages back and forth.
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Start(ctx context.Context) error
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// Stop stops the processor cleanly, finishing handling any remaining messages before closing down.
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Stop() error
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// ProcessFromClientAPI processes one message coming from the clientAPI channel, and triggers appropriate side effects.
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ProcessFromClientAPI(ctx context.Context, clientMsg messages.FromClientAPI) error
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// ProcessFromFederator processes one message coming from the federator channel, and triggers appropriate side effects.
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ProcessFromFederator(ctx context.Context, federatorMsg messages.FromFederator) error
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/*
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CLIENT API-FACING PROCESSING FUNCTIONS
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These functions are intended to be called when the API client needs an immediate (ie., synchronous) reply
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to an HTTP request. As such, they will only do the bare-minimum of work necessary to give a properly
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formed reply. For more intensive (and time-consuming) calls, where you don't require an immediate
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response, pass work to the processor using a channel instead.
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*/
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// AccountCreate processes the given form for creating a new account, returning an oauth token for that account if successful.
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AccountCreate(ctx context.Context, authed *oauth.Auth, form *apimodel.AccountCreateRequest) (*apimodel.Token, error)
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// AccountGet processes the given request for account information.
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AccountGet(ctx context.Context, authed *oauth.Auth, targetAccountID string) (*apimodel.Account, error)
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// AccountUpdate processes the update of an account with the given form
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AccountUpdate(ctx context.Context, authed *oauth.Auth, form *apimodel.UpdateCredentialsRequest) (*apimodel.Account, error)
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// AccountStatusesGet fetches a number of statuses (in time descending order) from the given account, filtered by visibility for
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// the account given in authed.
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AccountStatusesGet(ctx context.Context, authed *oauth.Auth, targetAccountID string, limit int, excludeReplies bool, maxID string, pinned bool, mediaOnly bool) ([]apimodel.Status, gtserror.WithCode)
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// AccountFollowersGet fetches a list of the target account's followers.
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AccountFollowersGet(ctx context.Context, authed *oauth.Auth, targetAccountID string) ([]apimodel.Account, gtserror.WithCode)
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// AccountFollowingGet fetches a list of the accounts that target account is following.
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AccountFollowingGet(ctx context.Context, authed *oauth.Auth, targetAccountID string) ([]apimodel.Account, gtserror.WithCode)
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// AccountRelationshipGet returns a relationship model describing the relationship of the targetAccount to the Authed account.
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AccountRelationshipGet(ctx context.Context, authed *oauth.Auth, targetAccountID string) (*apimodel.Relationship, gtserror.WithCode)
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// AccountFollowCreate handles a follow request to an account, either remote or local.
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AccountFollowCreate(ctx context.Context, authed *oauth.Auth, form *apimodel.AccountFollowRequest) (*apimodel.Relationship, gtserror.WithCode)
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// AccountFollowRemove handles the removal of a follow/follow request to an account, either remote or local.
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AccountFollowRemove(ctx context.Context, authed *oauth.Auth, targetAccountID string) (*apimodel.Relationship, gtserror.WithCode)
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// AccountBlockCreate handles the creation of a block from authed account to target account, either remote or local.
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AccountBlockCreate(ctx context.Context, authed *oauth.Auth, targetAccountID string) (*apimodel.Relationship, gtserror.WithCode)
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// AccountBlockRemove handles the removal of a block from authed account to target account, either remote or local.
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AccountBlockRemove(ctx context.Context, authed *oauth.Auth, targetAccountID string) (*apimodel.Relationship, gtserror.WithCode)
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// AdminEmojiCreate handles the creation of a new instance emoji by an admin, using the given form.
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AdminEmojiCreate(ctx context.Context, authed *oauth.Auth, form *apimodel.EmojiCreateRequest) (*apimodel.Emoji, error)
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// AdminDomainBlockCreate handles the creation of a new domain block by an admin, using the given form.
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AdminDomainBlockCreate(ctx context.Context, authed *oauth.Auth, form *apimodel.DomainBlockCreateRequest) (*apimodel.DomainBlock, gtserror.WithCode)
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// AdminDomainBlocksImport handles the import of multiple domain blocks by an admin, using the given form.
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AdminDomainBlocksImport(ctx context.Context, authed *oauth.Auth, form *apimodel.DomainBlockCreateRequest) ([]*apimodel.DomainBlock, gtserror.WithCode)
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// AdminDomainBlocksGet returns a list of currently blocked domains.
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AdminDomainBlocksGet(ctx context.Context, authed *oauth.Auth, export bool) ([]*apimodel.DomainBlock, gtserror.WithCode)
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// AdminDomainBlockGet returns one domain block, specified by ID.
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AdminDomainBlockGet(ctx context.Context, authed *oauth.Auth, id string, export bool) (*apimodel.DomainBlock, gtserror.WithCode)
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// AdminDomainBlockDelete deletes one domain block, specified by ID, returning the deleted domain block.
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AdminDomainBlockDelete(ctx context.Context, authed *oauth.Auth, id string) (*apimodel.DomainBlock, gtserror.WithCode)
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// AppCreate processes the creation of a new API application
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AppCreate(ctx context.Context, authed *oauth.Auth, form *apimodel.ApplicationCreateRequest) (*apimodel.Application, error)
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// BlocksGet returns a list of accounts blocked by the requesting account.
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BlocksGet(ctx context.Context, authed *oauth.Auth, maxID string, sinceID string, limit int) (*apimodel.BlocksResponse, gtserror.WithCode)
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// FileGet handles the fetching of a media attachment file via the fileserver.
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FileGet(ctx context.Context, authed *oauth.Auth, form *apimodel.GetContentRequestForm) (*apimodel.Content, error)
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// FollowRequestsGet handles the getting of the authed account's incoming follow requests
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FollowRequestsGet(ctx context.Context, auth *oauth.Auth) ([]apimodel.Account, gtserror.WithCode)
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// FollowRequestAccept handles the acceptance of a follow request from the given account ID
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FollowRequestAccept(ctx context.Context, auth *oauth.Auth, accountID string) (*apimodel.Relationship, gtserror.WithCode)
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// InstanceGet retrieves instance information for serving at api/v1/instance
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InstanceGet(ctx context.Context, domain string) (*apimodel.Instance, gtserror.WithCode)
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// InstancePatch updates this instance according to the given form.
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//
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// It should already be ascertained that the requesting account is authenticated and an admin.
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InstancePatch(ctx context.Context, form *apimodel.InstanceSettingsUpdateRequest) (*apimodel.Instance, gtserror.WithCode)
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// MediaCreate handles the creation of a media attachment, using the given form.
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MediaCreate(ctx context.Context, authed *oauth.Auth, form *apimodel.AttachmentRequest) (*apimodel.Attachment, error)
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// MediaGet handles the GET of a media attachment with the given ID
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MediaGet(ctx context.Context, authed *oauth.Auth, attachmentID string) (*apimodel.Attachment, gtserror.WithCode)
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// MediaUpdate handles the PUT of a media attachment with the given ID and form
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MediaUpdate(ctx context.Context, authed *oauth.Auth, attachmentID string, form *apimodel.AttachmentUpdateRequest) (*apimodel.Attachment, gtserror.WithCode)
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// NotificationsGet
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NotificationsGet(ctx context.Context, authed *oauth.Auth, limit int, maxID string, sinceID string) ([]*apimodel.Notification, gtserror.WithCode)
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// SearchGet performs a search with the given params, resolving/dereferencing remotely as desired
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SearchGet(ctx context.Context, authed *oauth.Auth, searchQuery *apimodel.SearchQuery) (*apimodel.SearchResult, gtserror.WithCode)
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// StatusCreate processes the given form to create a new status, returning the api model representation of that status if it's OK.
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StatusCreate(ctx context.Context, authed *oauth.Auth, form *apimodel.AdvancedStatusCreateForm) (*apimodel.Status, error)
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// StatusDelete processes the delete of a given status, returning the deleted status if the delete goes through.
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StatusDelete(ctx context.Context, authed *oauth.Auth, targetStatusID string) (*apimodel.Status, error)
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// StatusFave processes the faving of a given status, returning the updated status if the fave goes through.
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StatusFave(ctx context.Context, authed *oauth.Auth, targetStatusID string) (*apimodel.Status, error)
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// StatusBoost processes the boost/reblog of a given status, returning the newly-created boost if all is well.
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StatusBoost(ctx context.Context, authed *oauth.Auth, targetStatusID string) (*apimodel.Status, gtserror.WithCode)
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// StatusUnboost processes the unboost/unreblog of a given status, returning the status if all is well.
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StatusUnboost(ctx context.Context, authed *oauth.Auth, targetStatusID string) (*apimodel.Status, gtserror.WithCode)
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// StatusBoostedBy returns a slice of accounts that have boosted the given status, filtered according to privacy settings.
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StatusBoostedBy(ctx context.Context, authed *oauth.Auth, targetStatusID string) ([]*apimodel.Account, gtserror.WithCode)
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// StatusFavedBy returns a slice of accounts that have liked the given status, filtered according to privacy settings.
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StatusFavedBy(ctx context.Context, authed *oauth.Auth, targetStatusID string) ([]*apimodel.Account, error)
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// StatusGet gets the given status, taking account of privacy settings and blocks etc.
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StatusGet(ctx context.Context, authed *oauth.Auth, targetStatusID string) (*apimodel.Status, error)
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// StatusUnfave processes the unfaving of a given status, returning the updated status if the fave goes through.
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StatusUnfave(ctx context.Context, authed *oauth.Auth, targetStatusID string) (*apimodel.Status, error)
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// StatusGetContext returns the context (previous and following posts) from the given status ID
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StatusGetContext(ctx context.Context, authed *oauth.Auth, targetStatusID string) (*apimodel.Context, gtserror.WithCode)
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// HomeTimelineGet returns statuses from the home timeline, with the given filters/parameters.
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HomeTimelineGet(ctx context.Context, authed *oauth.Auth, maxID string, sinceID string, minID string, limit int, local bool) (*apimodel.StatusTimelineResponse, gtserror.WithCode)
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// PublicTimelineGet returns statuses from the public/local timeline, with the given filters/parameters.
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PublicTimelineGet(ctx context.Context, authed *oauth.Auth, maxID string, sinceID string, minID string, limit int, local bool) (*apimodel.StatusTimelineResponse, gtserror.WithCode)
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// FavedTimelineGet returns faved statuses, with the given filters/parameters.
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FavedTimelineGet(ctx context.Context, authed *oauth.Auth, maxID string, minID string, limit int) (*apimodel.StatusTimelineResponse, gtserror.WithCode)
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// AuthorizeStreamingRequest returns a gotosocial account in exchange for an access token, or an error if the given token is not valid.
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AuthorizeStreamingRequest(ctx context.Context, accessToken string) (*gtsmodel.Account, error)
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// OpenStreamForAccount opens a new stream for the given account, with the given stream type.
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OpenStreamForAccount(ctx context.Context, account *gtsmodel.Account, streamType string) (*stream.Stream, gtserror.WithCode)
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/*
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FEDERATION API-FACING PROCESSING FUNCTIONS
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These functions are intended to be called when the federating client needs an immediate (ie., synchronous) reply
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to an HTTP request. As such, they will only do the bare-minimum of work necessary to give a properly
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formed reply. For more intensive (and time-consuming) calls, where you don't require an immediate
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response, pass work to the processor using a channel instead.
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*/
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// GetFediUser handles the getting of a fedi/activitypub representation of a user/account, performing appropriate authentication
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// before returning a JSON serializable interface to the caller.
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GetFediUser(ctx context.Context, requestedUsername string, requestURL *url.URL) (interface{}, gtserror.WithCode)
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// GetFediFollowers handles the getting of a fedi/activitypub representation of a user/account's followers, performing appropriate
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// authentication before returning a JSON serializable interface to the caller.
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GetFediFollowers(ctx context.Context, requestedUsername string, requestURL *url.URL) (interface{}, gtserror.WithCode)
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// GetFediFollowing handles the getting of a fedi/activitypub representation of a user/account's following, performing appropriate
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// authentication before returning a JSON serializable interface to the caller.
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GetFediFollowing(ctx context.Context, requestedUsername string, requestURL *url.URL) (interface{}, gtserror.WithCode)
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// GetFediStatus handles the getting of a fedi/activitypub representation of a particular status, performing appropriate
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// authentication before returning a JSON serializable interface to the caller.
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GetFediStatus(ctx context.Context, requestedUsername string, requestedStatusID string, requestURL *url.URL) (interface{}, gtserror.WithCode)
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// GetFediStatus handles the getting of a fedi/activitypub representation of replies to a status, performing appropriate
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// authentication before returning a JSON serializable interface to the caller.
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GetFediStatusReplies(ctx context.Context, requestedUsername string, requestedStatusID string, page bool, onlyOtherAccounts bool, minID string, requestURL *url.URL) (interface{}, gtserror.WithCode)
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// GetWebfingerAccount handles the GET for a webfinger resource. Most commonly, it will be used for returning account lookups.
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GetWebfingerAccount(ctx context.Context, requestedUsername string, requestURL *url.URL) (*apimodel.WellKnownResponse, gtserror.WithCode)
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// GetNodeInfoRel returns a well known response giving the path to node info.
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GetNodeInfoRel(ctx context.Context, request *http.Request) (*apimodel.WellKnownResponse, gtserror.WithCode)
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// GetNodeInfo returns a node info struct in response to a node info request.
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GetNodeInfo(ctx context.Context, request *http.Request) (*apimodel.Nodeinfo, gtserror.WithCode)
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// InboxPost handles POST requests to a user's inbox for new activitypub messages.
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//
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// InboxPost returns true if the request was handled as an ActivityPub POST to an actor's inbox.
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// If false, the request was not an ActivityPub request and may still be handled by the caller in another way, such as serving a web page.
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//
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// If the error is nil, then the ResponseWriter's headers and response has already been written. If a non-nil error is returned, then no response has been written.
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//
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// If the Actor was constructed with the Federated Protocol enabled, side effects will occur.
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//
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// If the Federated Protocol is not enabled, writes the http.StatusMethodNotAllowed status code in the response. No side effects occur.
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InboxPost(ctx context.Context, w http.ResponseWriter, r *http.Request) (bool, error)
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}
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// processor just implements the Processor interface
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type processor struct {
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fromClientAPI chan messages.FromClientAPI
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fromFederator chan messages.FromFederator
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federator federation.Federator
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stop chan interface{}
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log *logrus.Logger
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config *config.Config
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tc typeutils.TypeConverter
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oauthServer oauth.Server
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mediaHandler media.Handler
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storage *kv.KVStore
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timelineManager timeline.Manager
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db db.DB
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filter visibility.Filter
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/*
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SUB-PROCESSORS
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*/
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accountProcessor account.Processor
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adminProcessor admin.Processor
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statusProcessor status.Processor
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streamingProcessor streaming.Processor
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mediaProcessor mediaProcessor.Processor
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}
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// NewProcessor returns a new Processor that uses the given federator and logger
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func NewProcessor(config *config.Config, tc typeutils.TypeConverter, federator federation.Federator, oauthServer oauth.Server, mediaHandler media.Handler, storage *kv.KVStore, timelineManager timeline.Manager, db db.DB, log *logrus.Logger) Processor {
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fromClientAPI := make(chan messages.FromClientAPI, 1000)
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fromFederator := make(chan messages.FromFederator, 1000)
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statusProcessor := status.New(db, tc, config, fromClientAPI, log)
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streamingProcessor := streaming.New(db, tc, oauthServer, config, log)
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accountProcessor := account.New(db, tc, mediaHandler, oauthServer, fromClientAPI, federator, config, log)
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adminProcessor := admin.New(db, tc, mediaHandler, fromClientAPI, config, log)
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mediaProcessor := mediaProcessor.New(db, tc, mediaHandler, storage, config, log)
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return &processor{
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fromClientAPI: fromClientAPI,
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fromFederator: fromFederator,
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federator: federator,
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stop: make(chan interface{}),
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log: log,
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config: config,
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tc: tc,
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oauthServer: oauthServer,
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mediaHandler: mediaHandler,
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storage: storage,
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timelineManager: timelineManager,
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db: db,
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filter: visibility.NewFilter(db, log),
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accountProcessor: accountProcessor,
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adminProcessor: adminProcessor,
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statusProcessor: statusProcessor,
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streamingProcessor: streamingProcessor,
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mediaProcessor: mediaProcessor,
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}
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}
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// Start starts the Processor, reading from its channels and passing messages back and forth.
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func (p *processor) Start(ctx context.Context) error {
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go func() {
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DistLoop:
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for {
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select {
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case clientMsg := <-p.fromClientAPI:
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p.log.Tracef("received message FROM client API: %+v", clientMsg)
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go func() {
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if err := p.ProcessFromClientAPI(ctx, clientMsg); err != nil {
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p.log.Error(err)
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}
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}()
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case federatorMsg := <-p.fromFederator:
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p.log.Tracef("received message FROM federator: %+v", federatorMsg)
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go func() {
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if err := p.ProcessFromFederator(ctx, federatorMsg); err != nil {
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p.log.Error(err)
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}
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}()
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case <-p.stop:
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break DistLoop
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}
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}
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}()
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return nil
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}
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// Stop stops the processor cleanly, finishing handling any remaining messages before closing down.
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// TODO: empty message buffer properly before stopping otherwise we'll lose federating messages.
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func (p *processor) Stop() error {
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close(p.stop)
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return nil
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}
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