commit 596cada3be7392bc2ab925efc90087e954078b11 · nel.pet/core

+240

appview/labels/labels.go

···

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       package labels

     

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       import (

     

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       	"context"

     

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       	"database/sql"

     

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       	"errors"

     

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       	"fmt"

     

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       	"log/slog"

     

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       	"net/http"

     

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       	"time"

     

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       +
       

     

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       	comatproto "github.com/bluesky-social/indigo/api/atproto"

     

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       	"github.com/bluesky-social/indigo/atproto/syntax"

     

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       	lexutil "github.com/bluesky-social/indigo/lex/util"

     

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       	"github.com/go-chi/chi/v5"

     

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       +
       

     

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       	"tangled.sh/tangled.sh/core/api/tangled"

     

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       	"tangled.sh/tangled.sh/core/appview/config"

     

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       	"tangled.sh/tangled.sh/core/appview/db"

     

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       	"tangled.sh/tangled.sh/core/appview/middleware"

     

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       	"tangled.sh/tangled.sh/core/appview/oauth"

     

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       	"tangled.sh/tangled.sh/core/appview/pages"

     

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       	"tangled.sh/tangled.sh/core/appview/reporesolver"

     

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       	"tangled.sh/tangled.sh/core/appview/xrpcclient"

     

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       	"tangled.sh/tangled.sh/core/eventconsumer"

     

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       	"tangled.sh/tangled.sh/core/idresolver"

     

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       	"tangled.sh/tangled.sh/core/log"

     

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       	"tangled.sh/tangled.sh/core/rbac"

     

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       	"tangled.sh/tangled.sh/core/tid"

     

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       )

     

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       type Labels struct {

     

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       	repoResolver *reporesolver.RepoResolver

     

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       	idResolver   *idresolver.Resolver

     

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       	oauth        *oauth.OAuth

     

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       	pages        *pages.Pages

     

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       	db           *db.DB

     

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       	logger       *slog.Logger

     

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       }

     

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       func New(

     

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       	oauth *oauth.OAuth,

     

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       	repoResolver *reporesolver.RepoResolver,

     

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       	pages *pages.Pages,

     

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       	spindlestream *eventconsumer.Consumer,

     

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       	idResolver *idresolver.Resolver,

     

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       	db *db.DB,

     

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       	config *config.Config,

     

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       	enforcer *rbac.Enforcer,

     

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       ) *Labels {

     

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       	logger := log.New("labels")

     

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       	return &Labels{

     

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       		oauth:        oauth,

     

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       		repoResolver: repoResolver,

     

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       		pages:        pages,

     

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       		idResolver:   idResolver,

     

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       		db:           db,

     

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       		logger:       logger,

     

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       	}

     

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       }

     

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       func (l *Labels) Router(mw *middleware.Middleware) http.Handler {

     

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       	r := chi.NewRouter()

     

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       	r.With(middleware.AuthMiddleware(l.oauth)).Put("/perform", l.PerformLabelOp)

     

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       	return r

     

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       }

     

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       func (l *Labels) PerformLabelOp(w http.ResponseWriter, r *http.Request) {

     

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       	user := l.oauth.GetUser(r)

     

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       	if err := r.ParseForm(); err != nil {

     

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       		l.logger.Error("failed to parse form data", "error", err)

     

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       		http.Error(w, "Invalid form data", http.StatusBadRequest)

     

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       		return

     

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       	}

     

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       	did := user.Did

     

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       	rkey := tid.TID()

     

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       	performedAt := time.Now()

     

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       	indexedAt := time.Now()

     

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       	repoAt := r.Form.Get("repo")

     

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       	subjectUri := r.Form.Get("subject")

     

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       	keys := r.Form["operand-key"]

     

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       	vals := r.Form["operand-val"]

     

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       	var labelOps []db.LabelOp

     

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       	for i := range len(keys) {

     

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       		op := r.FormValue(fmt.Sprintf("op-%d", i))

     

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       		if op == "" {

     

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       			op = string(db.LabelOperationDel)

     

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       		}

     

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       		key := keys[i]

     

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       		val := vals[i]

     

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       		labelOps = append(labelOps, db.LabelOp{

     

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       			Did:          did,

     

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       			Rkey:         rkey,

     

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       			Subject:      syntax.ATURI(subjectUri),

     

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       			Operation:    db.LabelOperation(op),

     

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       			OperandKey:   key,

     

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       			OperandValue: val,

     

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       			PerformedAt:  performedAt,

     

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       			IndexedAt:    indexedAt,

     

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       		})

     

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       	}

     

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       	// TODO: validate the operations

     

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       	// find all the labels that this repo subscribes to

     

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       	repoLabels, err := db.GetRepoLabels(l.db, db.FilterEq("repo_at", repoAt))

     

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       	if err != nil {

     

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       		http.Error(w, "Invalid form data", http.StatusBadRequest)

     

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       		return

     

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       	}

     

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       	var labelAts []string

     

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       	for _, rl := range repoLabels {

     

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       		labelAts = append(labelAts, rl.LabelAt.String())

     

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       	}

     

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       	actx, err := db.NewLabelApplicationCtx(l.db, db.FilterIn("at_uri", labelAts))

     

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       	if err != nil {

     

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       		http.Error(w, "Invalid form data", http.StatusBadRequest)

     

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       		return

     

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       	}

     

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       	// calculate the start state by applying already known labels

     

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       	existingOps, err := db.GetLabelOps(l.db, db.FilterEq("subject", subjectUri))

     

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       	if err != nil {

     

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       		http.Error(w, "Invalid form data", http.StatusBadRequest)

     

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       		return

     

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       	}

     

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       	labelState := db.NewLabelState()

     

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       	actx.ApplyLabelOps(labelState, existingOps)

     

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       	// next, apply all ops introduced in this request and filter out ones that are no-ops

     

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       	validLabelOps := labelOps[:0]

     

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       	for _, op := range labelOps {

     

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       		if err = actx.ApplyLabelOp(labelState, op); err != db.LabelNoOpError {

     

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       			validLabelOps = append(validLabelOps, op)

     

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       		}

     

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       	}

     

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       	// nothing to do

     

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       	if len(validLabelOps) == 0 {

     

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       		l.pages.HxRefresh(w)

     

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       		return

     

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       	}

     

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       	// create an atproto record of valid ops

     

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       	record := db.LabelOpsAsRecord(validLabelOps)

     

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       	client, err := l.oauth.AuthorizedClient(r)

     

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       	if err != nil {

     

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       		l.logger.Error("failed to create client", "error", err)

     

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       		http.Error(w, "Invalid form data", http.StatusBadRequest)

     

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       		return

     

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       	}

     

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       	resp, err := client.RepoPutRecord(r.Context(), &comatproto.RepoPutRecord_Input{

     

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       		Collection: tangled.LabelOpNSID,

     

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       		Repo:       did,

     

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       		Rkey:       rkey,

     

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       		Record: &lexutil.LexiconTypeDecoder{

     

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       			Val: &record,

     

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       		},

     

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       	})

     

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       	if err != nil {

     

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       		l.logger.Error("failed to write to PDS", "error", err)

     

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       		http.Error(w, "failed to write to PDS", http.StatusInternalServerError)

     

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       		return

     

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       	}

     

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       	atUri := resp.Uri

     

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       	tx, err := l.db.BeginTx(r.Context(), nil)

     

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       	if err != nil {

     

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       		l.logger.Error("failed to start tx", "error", err)

     

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       		return

     

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       	}

     

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       	rollback := func() {

     

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       		err1 := tx.Rollback()

     

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       		err2 := rollbackRecord(context.Background(), atUri, client)

     

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       		// ignore txn complete errors, this is okay

     

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       		if errors.Is(err1, sql.ErrTxDone) {

     

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       			err1 = nil

     

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       		}

     

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       		if errs := errors.Join(err1, err2); errs != nil {

     

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       			return

     

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       		}

     

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       	}

     

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       	defer rollback()

     

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       	for _, o := range validLabelOps {

     

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       		if _, err := db.AddLabelOp(l.db, &o); err != nil {

     

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       			l.logger.Error("failed to add op", "err", err)

     

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       			return

     

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       		}

     

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       		l.logger.Info("performed label op", "did", o.Did, "rkey", o.Rkey, "kind", o.Operation, "subjcet", o.Subject, "key", o.OperandKey)

     

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       	}

     

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       	err = tx.Commit()

     

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       	if err != nil {

     

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       		return

     

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       	}

     

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       	// clear aturi when everything is successful

     

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       	atUri = ""

     

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       	l.pages.HxRefresh(w)

     

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       }

     

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       // this is used to rollback changes made to the PDS

     

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       //

     

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       // it is a no-op if the provided ATURI is empty

     

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       func rollbackRecord(ctx context.Context, aturi string, xrpcc *xrpcclient.Client) error {

     

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       	if aturi == "" {

     

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       		return nil

     

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       	}

     

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       	parsed := syntax.ATURI(aturi)

     

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       	collection := parsed.Collection().String()

     

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       	repo := parsed.Authority().String()

     

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       	rkey := parsed.RecordKey().String()

     

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       	_, err := xrpcc.RepoDeleteRecord(ctx, &comatproto.RepoDeleteRecord_Input{

     

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       		Collection: collection,

     

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       		Repo:       repo,

     

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       		Rkey:       rkey,

     

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       	})

     

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       	return err

     

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       }

appview/state/router.go

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       	"github.com/gorilla/sessions"

     

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       	"tangled.org/core/appview/issues"

     

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       	"tangled.org/core/appview/knots"

     

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       	"tangled.org/core/appview/labels"

     

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       	"tangled.org/core/appview/middleware"

     

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       	oauthhandler "tangled.org/core/appview/oauth/handler"

     

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       	"tangled.org/core/appview/pipelines"

     
···

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       			r.Mount("/issues", s.IssuesRouter(mw))

     

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       			r.Mount("/pulls", s.PullsRouter(mw))

     

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       			r.Mount("/pipelines", s.PipelinesRouter(mw))

     

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       			r.Mount("/labels", s.LabelsRouter(mw))

     

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       			// These routes get proxied to the knot

     

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       			r.Get("/info/refs", s.InfoRefs)

     
···

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       func (s *State) PipelinesRouter(mw *middleware.Middleware) http.Handler {

     

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       	pipes := pipelines.New(s.oauth, s.repoResolver, s.pages, s.spindlestream, s.idResolver, s.db, s.config, s.enforcer)

     

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       	return pipes.Router(mw)

     

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       }

     

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       func (s *State) LabelsRouter(mw *middleware.Middleware) http.Handler {

     

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       	ls := labels.New(s.oauth, s.repoResolver, s.pages, s.spindlestream, s.idResolver, s.db, s.config, s.enforcer)

     

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       	return ls.Router(mw)

     

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       }

     

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       func (s *State) SignupRouter() http.Handler {