commit e72fef82d9d1ac1fd73e1def73ce3569ca1f6e82 · notnite.com/core

+1 -1

cmd/knotserver/main.go

···

       29
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       		log.Fatalf("failed to setup db: %s", err)

     

       30
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       	}

     

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       -
       	mux, err := knotserver.Setup(c, db)

     

       32
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       +
       	mux, err := knotserver.Setup(ctx, c, db)

     

       33
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       	if err != nil {

     

       34
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       		log.Fatal(err)

     

       35
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       	}

go.mod

···

       14
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       	github.com/go-git/go-git/v5 v5.12.0

     

       15
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       	github.com/google/uuid v1.6.0

     

       16
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       	github.com/gorilla/sessions v1.4.0

     

       17
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       +
       	github.com/gorilla/websocket v1.5.1

     

       17
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       	github.com/ipfs/go-cid v0.4.1

     

       18
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       	github.com/mattn/go-sqlite3 v1.14.24

     

       19
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       	github.com/microcosm-cc/bluemonday v1.0.27

go.sum

···

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       github.com/gorilla/securecookie v1.1.2/go.mod h1:NfCASbcHqRSY+3a8tlWJwsQap2VX5pwzwo4h3eOamfo=

     

       104
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       github.com/gorilla/sessions v1.4.0 h1:kpIYOp/oi6MG/p5PgxApU8srsSw9tuFbt46Lt7auzqQ=

     

       105
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       github.com/gorilla/sessions v1.4.0/go.mod h1:FLWm50oby91+hl7p/wRxDth9bWSuk0qVL2emc7lT5ik=

     

       106
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       +
       github.com/gorilla/websocket v1.5.1 h1:gmztn0JnHVt9JZquRuzLw3g4wouNVzKL15iLr/zn/QY=

     

       107
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       +
       github.com/gorilla/websocket v1.5.1/go.mod h1:x3kM2JMyaluk02fnUJpQuwD2dCS5NDG2ZHL0uE0tcaY=

     

       106
       108
        
       github.com/hashicorp/go-cleanhttp v0.5.2 h1:035FKYIWjmULyFRBKPs8TBQoi0x6d9G4xc9neXJWAZQ=

     

       107
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       github.com/hashicorp/go-cleanhttp v0.5.2/go.mod h1:kO/YDlP8L1346E6Sodw+PrpBSV4/SoxCXGY6BqNFT48=

     

       108
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       github.com/hashicorp/go-hclog v0.9.2 h1:CG6TE5H9/JXsFWJCfoIVpKFIkFe6ysEuHirp4DxCsHI=

+41 -4

knotserver/handler.go

···

       1
       1
        
       package knotserver

     

       2
       2
        
       

     

       3
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       import (

     

       4
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       +
       	"context"

     

       5
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       +
       	"encoding/json"

     

       4
       6
        
       	"fmt"

     

       7
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       +
       	"log"

     

       5
       8
        
       	"net/http"

     

       6
       9
        
       

     

       7
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       	"github.com/go-chi/chi/v5"

     

       8
       11
        
       	"github.com/icyphox/bild/knotserver/config"

     

       9
       12
        
       	"github.com/icyphox/bild/knotserver/db"

     

       13
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       +
       	"github.com/icyphox/bild/knotserver/jsclient"

     

       10
       14
        
       )

     

       11
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       12
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       -
       func Setup(c *config.Config, db *db.DB) (http.Handler, error) {

     

       16
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       +
       type Handle struct {

     

       17
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       +
       	c  *config.Config

     

       18
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       +
       	db *db.DB

     

       19
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       +
       	js *jsclient.JetstreamClient

     

       20
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       +
       }

     

       21
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       +
       

     

       22
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       +
       func Setup(ctx context.Context, c *config.Config, db *db.DB) (http.Handler, error) {

     

       13
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       	r := chi.NewRouter()

     

       14
       24
        
       

     

       15
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       	h := Handle{

     

       16
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       		c:  c,

     

       17
       27
        
       		db: db,

     

       28
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       +
       	}

     

       29
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       +
       

     

       30
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       +
       	err := h.StartJetstream(ctx)

     

       31
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       +
       	if err != nil {

     

       32
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       +
       		return nil, fmt.Errorf("failed to start jetstream: %w", err)

     

       18
       33
        
       	}

     

       19
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       20
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       	r.Get("/", h.Index)

     
···

       55
       70
        
       	return r, nil

     

       56
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       }

     

       57
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       58
       58
       -
       type Handle struct {

     

       59
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       -
       	c  *config.Config

     

       60
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       -
       	db *db.DB

     

       73
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       +
       func (h *Handle) StartJetstream(ctx context.Context) error {

     

       74
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       +
       	colections := []string{"sh.bild.publicKeys"}

     

       75
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       +
       	dids := []string{}

     

       76
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       +
       

     

       77
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       +
       	h.js = jsclient.NewJetstreamClient(colections, dids)

     

       78
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       +
       	messages, err := h.js.ReadJetstream(ctx)

     

       79
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       +
       	if err != nil {

     

       80
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       +
       		return fmt.Errorf("failed to read from jetstream: %w", err)

     

       81
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       +
       	}

     

       82
       82
       +
       

     

       83
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       +
       	go func() {

     

       84
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       +
       		for msg := range messages {

     

       85
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       +
       			var data map[string]interface{}

     

       86
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       +
       			if err := json.Unmarshal(msg, &data); err != nil {

     

       87
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       +
       				log.Printf("error unmarshaling message: %v", err)

     

       88
       88
       +
       				continue

     

       89
       89
       +
       			}

     

       90
       90
       +
       

     

       91
       91
       +
       			if kind, ok := data["kind"].(string); ok && kind == "commit" {

     

       92
       92
       +
       				log.Printf("commit event: %+v", data)

     

       93
       93
       +
       			}

     

       94
       94
       +
       		}

     

       95
       95
       +
       	}()

     

       96
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       +
       

     

       97
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       +
       	return nil

     

       61
       98
        
       }

     

       62
       99
        
       

     

       63
       100
        
       func (h *Handle) Multiplex(w http.ResponseWriter, r *http.Request) {

+161

knotserver/jsclient/jetstream.go

···

       1
       1
       +
       package jsclient

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"context"

     

       5
       5
       +
       	"fmt"

     

       6
       6
       +
       	"log"

     

       7
       7
       +
       	"net/url"

     

       8
       8
       +
       	"sync"

     

       9
       9
       +
       	"time"

     

       10
       10
       +
       

     

       11
       11
       +
       	"github.com/gorilla/websocket"

     

       12
       12
       +
       )

     

       13
       13
       +
       

     

       14
       14
       +
       type JetstreamClient struct {

     

       15
       15
       +
       	collections []string

     

       16
       16
       +
       	dids        []string

     

       17
       17
       +
       	conn        *websocket.Conn

     

       18
       18
       +
       	mu          sync.RWMutex

     

       19
       19
       +
       	reconnectCh chan struct{}

     

       20
       20
       +
       }

     

       21
       21
       +
       

     

       22
       22
       +
       func NewJetstreamClient(collections, dids []string) *JetstreamClient {

     

       23
       23
       +
       	return &JetstreamClient{

     

       24
       24
       +
       		collections: collections,

     

       25
       25
       +
       		dids:        dids,

     

       26
       26
       +
       		reconnectCh: make(chan struct{}, 1),

     

       27
       27
       +
       	}

     

       28
       28
       +
       }

     

       29
       29
       +
       

     

       30
       30
       +
       func (j *JetstreamClient) buildWebsocketURL(queryParams string) url.URL {

     

       31
       31
       +
       

     

       32
       32
       +
       	u := url.URL{

     

       33
       33
       +
       		Scheme:   "wss",

     

       34
       34
       +
       		Host:     "jetstream1.us-west.bsky.network",

     

       35
       35
       +
       		Path:     "/subscribe",

     

       36
       36
       +
       		RawQuery: queryParams,

     

       37
       37
       +
       	}

     

       38
       38
       +
       

     

       39
       39
       +
       	fmt.Println("URL:", u.String())

     

       40
       40
       +
       	return u

     

       41
       41
       +
       }

     

       42
       42
       +
       

     

       43
       43
       +
       // UpdateCollections updates the collections list and triggers a reconnection

     

       44
       44
       +
       func (j *JetstreamClient) UpdateCollections(collections []string) {

     

       45
       45
       +
       	j.mu.Lock()

     

       46
       46
       +
       	j.collections = collections

     

       47
       47
       +
       	j.mu.Unlock()

     

       48
       48
       +
       	j.triggerReconnect()

     

       49
       49
       +
       }

     

       50
       50
       +
       

     

       51
       51
       +
       // UpdateDids updates the DIDs list and triggers a reconnection

     

       52
       52
       +
       func (j *JetstreamClient) UpdateDids(dids []string) {

     

       53
       53
       +
       	j.mu.Lock()

     

       54
       54
       +
       	j.dids = dids

     

       55
       55
       +
       	j.mu.Unlock()

     

       56
       56
       +
       	j.triggerReconnect()

     

       57
       57
       +
       }

     

       58
       58
       +
       

     

       59
       59
       +
       func (j *JetstreamClient) triggerReconnect() {

     

       60
       60
       +
       	select {

     

       61
       61
       +
       	case j.reconnectCh <- struct{}{}:

     

       62
       62
       +
       	default:

     

       63
       63
       +
       		// Channel already has a pending reconnect

     

       64
       64
       +
       	}

     

       65
       65
       +
       }

     

       66
       66
       +
       

     

       67
       67
       +
       func (j *JetstreamClient) buildQueryParams(cursor int64) string {

     

       68
       68
       +
       	j.mu.RLock()

     

       69
       69
       +
       	defer j.mu.RUnlock()

     

       70
       70
       +
       

     

       71
       71
       +
       	var collections, dids string

     

       72
       72
       +
       	if len(j.collections) > 0 {

     

       73
       73
       +
       		collections = fmt.Sprintf("wantedCollections=%s", j.collections[0])

     

       74
       74
       +
       		for _, collection := range j.collections[1:] {

     

       75
       75
       +
       			collections += fmt.Sprintf("&wantedCollections=%s", collection)

     

       76
       76
       +
       		}

     

       77
       77
       +
       	}

     

       78
       78
       +
       	if len(j.dids) > 0 {

     

       79
       79
       +
       		for i, did := range j.dids {

     

       80
       80
       +
       			if i == 0 {

     

       81
       81
       +
       				dids = fmt.Sprintf("wantedDids=%s", did)

     

       82
       82
       +
       			} else {

     

       83
       83
       +
       				dids += fmt.Sprintf("&wantedDids=%s", did)

     

       84
       84
       +
       			}

     

       85
       85
       +
       		}

     

       86
       86
       +
       	}

     

       87
       87
       +
       

     

       88
       88
       +
       	var queryStr string

     

       89
       89
       +
       	if collections != "" && dids != "" {

     

       90
       90
       +
       		queryStr = collections + "&" + dids

     

       91
       91
       +
       	} else if collections != "" {

     

       92
       92
       +
       		queryStr = collections

     

       93
       93
       +
       	} else if dids != "" {

     

       94
       94
       +
       		queryStr = dids

     

       95
       95
       +
       	}

     

       96
       96
       +
       

     

       97
       97
       +
       	return queryStr

     

       98
       98
       +
       }

     

       99
       99
       +
       

     

       100
       100
       +
       func (j *JetstreamClient) connect(cursor int64) error {

     

       101
       101
       +
       	queryParams := j.buildQueryParams(cursor)

     

       102
       102
       +
       	u := j.buildWebsocketURL(queryParams)

     

       103
       103
       +
       

     

       104
       104
       +
       	dialer := websocket.Dialer{

     

       105
       105
       +
       		HandshakeTimeout: 10 * time.Second,

     

       106
       106
       +
       	}

     

       107
       107
       +
       

     

       108
       108
       +
       	conn, _, err := dialer.Dial(u.String(), nil)

     

       109
       109
       +
       	if err != nil {

     

       110
       110
       +
       		return err

     

       111
       111
       +
       	}

     

       112
       112
       +
       

     

       113
       113
       +
       	if j.conn != nil {

     

       114
       114
       +
       		j.conn.Close()

     

       115
       115
       +
       	}

     

       116
       116
       +
       	j.conn = conn

     

       117
       117
       +
       	return nil

     

       118
       118
       +
       }

     

       119
       119
       +
       

     

       120
       120
       +
       func (j *JetstreamClient) readMessages(ctx context.Context, messages chan []byte) {

     

       121
       121
       +
       	defer close(messages)

     

       122
       122
       +
       	defer j.conn.Close()

     

       123
       123
       +
       

     

       124
       124
       +
       	ticker := time.NewTicker(1 * time.Second)

     

       125
       125
       +
       	defer ticker.Stop()

     

       126
       126
       +
       

     

       127
       127
       +
       	for {

     

       128
       128
       +
       		select {

     

       129
       129
       +
       		case <-ctx.Done():

     

       130
       130
       +
       			return

     

       131
       131
       +
       		case <-j.reconnectCh:

     

       132
       132
       +
       			// Reconnect with new parameters

     

       133
       133
       +
       			// cursor := time.Now().Add(-5 * time.Second).UnixMicro()

     

       134
       134
       +
       			if err := j.connect(0); err != nil {

     

       135
       135
       +
       				log.Printf("error reconnecting to jetstream: %v", err)

     

       136
       136
       +
       				return

     

       137
       137
       +
       			}

     

       138
       138
       +
       		case <-ticker.C:

     

       139
       139
       +
       			_, message, err := j.conn.ReadMessage()

     

       140
       140
       +
       			if err != nil {

     

       141
       141
       +
       				log.Printf("error reading from websocket: %v", err)

     

       142
       142
       +
       				return

     

       143
       143
       +
       			}

     

       144
       144
       +
       			messages <- message

     

       145
       145
       +
       		}

     

       146
       146
       +
       	}

     

       147
       147
       +
       }

     

       148
       148
       +
       

     

       149
       149
       +
       func (j *JetstreamClient) ReadJetstream(ctx context.Context) (chan []byte, error) {

     

       150
       150
       +
       	fiveSecondsAgo := time.Now().Add(-5 * time.Second).UnixMicro()

     

       151
       151
       +
       

     

       152
       152
       +
       	if err := j.connect(fiveSecondsAgo); err != nil {

     

       153
       153
       +
       		log.Printf("error connecting to jetstream: %v", err)

     

       154
       154
       +
       		return nil, err

     

       155
       155
       +
       	}

     

       156
       156
       +
       

     

       157
       157
       +
       	messages := make(chan []byte)

     

       158
       158
       +
       	go j.readMessages(ctx, messages)

     

       159
       159
       +
       

     

       160
       160
       +
       	return messages, nil

     

       161
       161
       +
       }