mirror of https://github.com/perkeep/perkeep.git
109 lines
3.1 KiB
Go
109 lines
3.1 KiB
Go
/*
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Copyright 2014 The Camlistore Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package serverinit
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import (
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"errors"
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"fmt"
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"log"
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"os"
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"strings"
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"camlistore.org/pkg/blob"
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"camlistore.org/pkg/blobserver"
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"camlistore.org/pkg/jsonsign/signhandler"
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"camlistore.org/pkg/schema"
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"camlistore.org/pkg/search"
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"camlistore.org/pkg/server/app"
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)
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var isDevcamServer = (os.Getenv("CAMLI_DEV_CAMLI_ROOT") != "")
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func (hl *handlerLoader) initPublisherRootNode(ah *app.Handler) error {
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if !isDevcamServer {
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return nil
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}
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h, err := hl.GetHandler("/my-search/")
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if err != nil {
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return err
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}
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sh := h.(*search.Handler)
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camliRootQuery := func(camliRoot string) (*search.SearchResult, error) {
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return sh.Query(&search.SearchQuery{
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Limit: 1,
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Constraint: &search.Constraint{
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Permanode: &search.PermanodeConstraint{
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Attr: "camliRoot",
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Value: camliRoot,
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},
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},
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})
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}
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appConfig := ah.AppConfig()
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if appConfig == nil {
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return errors.New("publisher app handler has no AppConfig")
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}
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camliRoot, ok := appConfig["camliRoot"].(string)
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if !ok {
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return fmt.Errorf("camliRoot in publisher app handler appConfig is %T, want string", appConfig["camliRoot"])
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}
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result, err := camliRootQuery(camliRoot)
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if err == nil && len(result.Blobs) > 0 && result.Blobs[0].Blob.Valid() {
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// root node found, nothing more to do.
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log.Printf("Found %v camliRoot node for publisher: %v", camliRoot, result.Blobs[0].Blob.String())
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return nil
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}
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log.Printf("No %v camliRoot node found, creating one from scratch now.", camliRoot)
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bs, err := hl.GetStorage("/bs-recv/")
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if err != nil {
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return err
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}
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h, err = hl.GetHandler("/sighelper/")
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if err != nil {
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return err
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}
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sigh := h.(*signhandler.Handler)
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signUpload := func(bb *schema.Builder) (blob.Ref, error) {
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signed, err := sigh.Sign(bb)
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if err != nil {
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return blob.Ref{}, fmt.Errorf("could not sign blob: %v", err)
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}
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br := blob.SHA1FromString(signed)
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if _, err := blobserver.Receive(bs, br, strings.NewReader(signed)); err != nil {
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return blob.Ref{}, fmt.Errorf("could not upload %v: %v", br.String(), err)
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}
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return br, nil
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}
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pn, err := signUpload(schema.NewUnsignedPermanode())
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if err != nil {
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return fmt.Errorf("could not create new camliRoot node: %v", err)
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}
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if _, err := signUpload(schema.NewSetAttributeClaim(pn, "camliRoot", camliRoot)); err != nil {
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return fmt.Errorf("could not set camliRoot on new node %v: %v", pn, err)
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}
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if _, err := signUpload(schema.NewSetAttributeClaim(pn, "title", "Publish root node for "+camliRoot)); err != nil {
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return fmt.Errorf("could not set camliRoot on new node %v: %v", pn, err)
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}
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return nil
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}
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