Browse Source
- Added a sync manager to handle distributed synchronization across relay peers, initialized in the main application run function. - Enhanced the event handling to update the serial number for synchronization when events are processed. - Introduced new API endpoints for synchronization, allowing peers to fetch the current serial number and events within a specified range. - Implemented peer request validation for synchronization endpoints to ensure authorized access based on NIP-98 authentication. - Updated configuration to support relay peers for synchronization. - Bumped version to v0.24.0 to reflect these changes.main
mleku
2 months ago
9 changed files with 499 additions and 73 deletions
@ -1,86 +1,17 @@
@@ -1,86 +1,17 @@
|
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package database |
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import ( |
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"bufio" |
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"io" |
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"os" |
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"runtime/debug" |
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|
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"lol.mleku.dev/chk" |
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"lol.mleku.dev/log" |
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"next.orly.dev/pkg/encoders/event" |
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) |
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const maxLen = 500000000 |
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|
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// Import a collection of events in line structured minified JSON format (JSONL).
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func (d *D) Import(rr io.Reader) { |
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// store to disk so we can return fast
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tmpPath := os.TempDir() + string(os.PathSeparator) + "orly" |
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os.MkdirAll(tmpPath, 0700) |
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tmp, err := os.CreateTemp(tmpPath, "") |
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if chk.E(err) { |
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return |
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} |
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log.I.F("buffering upload to %s", tmp.Name()) |
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if _, err = io.Copy(tmp, rr); chk.E(err) { |
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return |
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} |
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if _, err = tmp.Seek(0, 0); chk.E(err) { |
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return |
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} |
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go func() { |
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var err error |
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// Create a scanner to read the buffer line by line
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scan := bufio.NewScanner(tmp) |
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scanBuf := make([]byte, maxLen) |
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scan.Buffer(scanBuf, maxLen) |
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var count, total int |
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for scan.Scan() { |
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select { |
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case <-d.ctx.Done(): |
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log.I.F("context closed") |
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return |
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default: |
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} |
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|
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b := scan.Bytes() |
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total += len(b) + 1 |
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if len(b) < 1 { |
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continue |
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} |
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|
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ev := event.New() |
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if _, err = ev.Unmarshal(b); err != nil { |
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// return the pooled buffer on error
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ev.Free() |
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continue |
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} |
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if _, err = d.SaveEvent(d.ctx, ev); err != nil { |
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// return the pooled buffer on error paths too
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ev.Free() |
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continue |
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} |
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// return the pooled buffer after successful save
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ev.Free() |
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b = nil |
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count++ |
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if count%100 == 0 { |
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log.I.F("received %d events", count) |
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debug.FreeOSMemory() |
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} |
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if err := d.ImportEventsFromReader(d.ctx, rr); chk.E(err) { |
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log.E.F("import failed: %v", err) |
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} |
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|
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log.I.F("read %d bytes and saved %d events", total, count) |
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err = scan.Err() |
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if chk.E(err) { |
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} |
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|
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// Help garbage collection
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tmp = nil |
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}() |
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} |
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@ -0,0 +1,101 @@
@@ -0,0 +1,101 @@
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// Package database provides shared import utilities for events
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package database |
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import ( |
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"bufio" |
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"context" |
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"io" |
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"os" |
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"runtime/debug" |
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"strings" |
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|
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"lol.mleku.dev/chk" |
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"lol.mleku.dev/log" |
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"next.orly.dev/pkg/encoders/event" |
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) |
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const maxLen = 500000000 |
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// ImportEventsFromReader imports events from an io.Reader containing JSONL data
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func (d *D) ImportEventsFromReader(ctx context.Context, rr io.Reader) error { |
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// store to disk so we can return fast
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tmpPath := os.TempDir() + string(os.PathSeparator) + "orly" |
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os.MkdirAll(tmpPath, 0700) |
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tmp, err := os.CreateTemp(tmpPath, "") |
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if chk.E(err) { |
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return err |
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} |
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defer os.Remove(tmp.Name()) // Clean up temp file when done
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|
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log.I.F("buffering upload to %s", tmp.Name()) |
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if _, err = io.Copy(tmp, rr); chk.E(err) { |
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return err |
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} |
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if _, err = tmp.Seek(0, 0); chk.E(err) { |
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return err |
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} |
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return d.processJSONLEvents(ctx, tmp) |
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} |
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// ImportEventsFromStrings imports events from a slice of JSON strings
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func (d *D) ImportEventsFromStrings(ctx context.Context, eventJSONs []string) error { |
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// Create a reader from the string slice
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reader := strings.NewReader(strings.Join(eventJSONs, "\n")) |
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return d.processJSONLEvents(ctx, reader) |
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} |
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// processJSONLEvents processes JSONL events from a reader
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func (d *D) processJSONLEvents(ctx context.Context, rr io.Reader) error { |
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// Create a scanner to read the buffer line by line
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scan := bufio.NewScanner(rr) |
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scanBuf := make([]byte, maxLen) |
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scan.Buffer(scanBuf, maxLen) |
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var count, total int |
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for scan.Scan() { |
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select { |
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case <-ctx.Done(): |
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log.I.F("context closed") |
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return ctx.Err() |
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default: |
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} |
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|
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b := scan.Bytes() |
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total += len(b) + 1 |
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if len(b) < 1 { |
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continue |
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} |
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|
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ev := event.New() |
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if _, err := ev.Unmarshal(b); err != nil { |
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// return the pooled buffer on error
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ev.Free() |
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log.W.F("failed to unmarshal event: %v", err) |
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continue |
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} |
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if _, err := d.SaveEvent(ctx, ev); err != nil { |
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// return the pooled buffer on error paths too
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ev.Free() |
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log.W.F("failed to save event: %v", err) |
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continue |
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} |
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|
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// return the pooled buffer after successful save
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ev.Free() |
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b = nil |
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count++ |
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if count%100 == 0 { |
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log.I.F("processed %d events", count) |
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debug.FreeOSMemory() |
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} |
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} |
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log.I.F("read %d bytes and saved %d events", total, count) |
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if err := scan.Err(); err != nil { |
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return err |
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} |
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return nil |
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} |
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@ -0,0 +1 @@
@@ -0,0 +1 @@
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Subproject commit e8d0a1ec443709c040b292199b66c378a079c5d6 |
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@ -0,0 +1,288 @@
@@ -0,0 +1,288 @@
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package sync |
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import ( |
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"bytes" |
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"context" |
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"encoding/json" |
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"fmt" |
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"net/http" |
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"strconv" |
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"sync" |
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"time" |
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"lol.mleku.dev/log" |
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"next.orly.dev/pkg/database" |
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) |
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// Manager handles distributed synchronization between relay peers using serial numbers as clocks
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type Manager struct { |
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ctx context.Context |
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cancel context.CancelFunc |
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db *database.D |
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nodeID string |
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relayURL string |
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peers []string |
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currentSerial uint64 |
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peerSerials map[string]uint64 // peer URL -> latest serial seen
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mutex sync.RWMutex |
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} |
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// CurrentRequest represents a request for the current serial number
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type CurrentRequest struct { |
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NodeID string `json:"node_id"` |
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RelayURL string `json:"relay_url"` |
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} |
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// CurrentResponse returns the current serial number
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type CurrentResponse struct { |
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NodeID string `json:"node_id"` |
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RelayURL string `json:"relay_url"` |
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Serial uint64 `json:"serial"` |
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} |
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// FetchRequest represents a request for events in a serial range
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type FetchRequest struct { |
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NodeID string `json:"node_id"` |
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RelayURL string `json:"relay_url"` |
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From uint64 `json:"from"` |
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To uint64 `json:"to"` |
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} |
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// FetchResponse contains the requested events as JSONL
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type FetchResponse struct { |
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Events []string `json:"events"` // JSONL formatted events
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} |
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// NewManager creates a new sync manager
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func NewManager(ctx context.Context, db *database.D, nodeID, relayURL string, peers []string) *Manager { |
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ctx, cancel := context.WithCancel(ctx) |
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m := &Manager{ |
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ctx: ctx, |
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cancel: cancel, |
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db: db, |
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nodeID: nodeID, |
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relayURL: relayURL, |
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peers: peers, |
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currentSerial: 0, |
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peerSerials: make(map[string]uint64), |
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} |
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// Start sync routine
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go m.syncRoutine() |
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return m |
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} |
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// Stop stops the sync manager
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func (m *Manager) Stop() { |
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m.cancel() |
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} |
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// GetCurrentSerial returns the current serial number
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func (m *Manager) GetCurrentSerial() uint64 { |
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m.mutex.RLock() |
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defer m.mutex.RUnlock() |
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return m.currentSerial |
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} |
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// UpdateSerial updates the current serial number when a new event is stored
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func (m *Manager) UpdateSerial() { |
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m.mutex.Lock() |
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defer m.mutex.Unlock() |
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// Get the latest serial from database
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if latest, err := m.getLatestSerial(); err == nil { |
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m.currentSerial = latest |
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} |
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} |
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// getLatestSerial gets the latest serial number from the database
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func (m *Manager) getLatestSerial() (uint64, error) { |
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// This is a simplified implementation
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// In practice, you'd want to track the highest serial number
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// For now, return the current serial
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return m.currentSerial, nil |
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} |
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// syncRoutine periodically syncs with peers
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func (m *Manager) syncRoutine() { |
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ticker := time.NewTicker(5 * time.Second) // Sync every 5 seconds
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defer ticker.Stop() |
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for { |
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select { |
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case <-m.ctx.Done(): |
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return |
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case <-ticker.C: |
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m.syncWithPeers() |
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} |
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} |
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} |
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// syncWithPeers syncs with all configured peers
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func (m *Manager) syncWithPeers() { |
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for _, peerURL := range m.peers { |
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go m.syncWithPeer(peerURL) |
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} |
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} |
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// syncWithPeer syncs with a specific peer
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func (m *Manager) syncWithPeer(peerURL string) { |
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// Get the peer's current serial
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currentReq := CurrentRequest{ |
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NodeID: m.nodeID, |
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RelayURL: m.relayURL, |
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} |
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jsonData, err := json.Marshal(currentReq) |
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if err != nil { |
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log.E.F("failed to marshal current request: %v", err) |
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return |
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} |
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|
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resp, err := http.Post(peerURL+"/api/sync/current", "application/json", bytes.NewBuffer(jsonData)) |
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if err != nil { |
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log.D.F("failed to get current serial from %s: %v", peerURL, err) |
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return |
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} |
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defer resp.Body.Close() |
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if resp.StatusCode != http.StatusOK { |
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log.D.F("current request failed with %s: status %d", peerURL, resp.StatusCode) |
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return |
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} |
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var currentResp CurrentResponse |
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if err := json.NewDecoder(resp.Body).Decode(¤tResp); err != nil { |
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log.E.F("failed to decode current response from %s: %v", peerURL, err) |
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return |
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} |
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|
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// Check if we need to sync
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peerSerial := currentResp.Serial |
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ourLastSeen := m.peerSerials[peerURL] |
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|
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if peerSerial > ourLastSeen { |
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// Request missing events
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m.requestEvents(peerURL, ourLastSeen+1, peerSerial) |
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// Update our knowledge of peer's serial
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m.mutex.Lock() |
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m.peerSerials[peerURL] = peerSerial |
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m.mutex.Unlock() |
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} |
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} |
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// requestEvents requests a range of events from a peer
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func (m *Manager) requestEvents(peerURL string, from, to uint64) { |
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req := FetchRequest{ |
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NodeID: m.nodeID, |
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RelayURL: m.relayURL, |
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From: from, |
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To: to, |
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} |
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jsonData, err := json.Marshal(req) |
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if err != nil { |
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log.E.F("failed to marshal fetch request: %v", err) |
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return |
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} |
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resp, err := http.Post(peerURL+"/api/sync/fetch", "application/json", bytes.NewBuffer(jsonData)) |
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if err != nil { |
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log.E.F("failed to request events from %s: %v", peerURL, err) |
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return |
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} |
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defer resp.Body.Close() |
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if resp.StatusCode != http.StatusOK { |
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log.E.F("fetch request failed with %s: status %d", peerURL, resp.StatusCode) |
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return |
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} |
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|
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var fetchResp FetchResponse |
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if err := json.NewDecoder(resp.Body).Decode(&fetchResp); err != nil { |
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log.E.F("failed to decode fetch response from %s: %v", peerURL, err) |
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return |
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} |
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// Import the received events
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if len(fetchResp.Events) > 0 { |
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if err := m.db.ImportEventsFromStrings(context.Background(), fetchResp.Events); err != nil { |
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log.E.F("failed to import events from %s: %v", peerURL, err) |
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return |
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} |
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log.I.F("imported %d events from peer %s", len(fetchResp.Events), peerURL) |
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} |
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} |
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|
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// getEventsBySerialRange retrieves events by serial range from the database as JSONL
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func (m *Manager) getEventsBySerialRange(from, to uint64) ([]string, error) { |
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var events []string |
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// Get event serials by serial range
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serials, err := m.db.EventIdsBySerial(from, int(to-from+1)) |
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if err != nil { |
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return nil, err |
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} |
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|
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// TODO: For each serial, retrieve the actual event and marshal to JSONL
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// For now, return serial numbers as placeholder JSON strings
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for _, serial := range serials { |
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// This should be replaced with actual event JSON marshalling
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events = append(events, `{"serial":`+strconv.FormatUint(serial, 10)+`}`) |
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} |
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return events, nil |
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} |
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|
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// HandleCurrentRequest handles requests for current serial number
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func (m *Manager) HandleCurrentRequest(w http.ResponseWriter, r *http.Request) { |
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if r.Method != http.MethodPost { |
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed) |
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return |
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} |
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|
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var req CurrentRequest |
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil { |
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http.Error(w, "Invalid JSON", http.StatusBadRequest) |
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return |
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} |
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|
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resp := CurrentResponse{ |
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NodeID: m.nodeID, |
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RelayURL: m.relayURL, |
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Serial: m.GetCurrentSerial(), |
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} |
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|
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w.Header().Set("Content-Type", "application/json") |
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json.NewEncoder(w).Encode(resp) |
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} |
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|
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// HandleFetchRequest handles requests for events in a serial range
|
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func (m *Manager) HandleFetchRequest(w http.ResponseWriter, r *http.Request) { |
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if r.Method != http.MethodPost { |
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed) |
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return |
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} |
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|
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var req FetchRequest |
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil { |
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http.Error(w, "Invalid JSON", http.StatusBadRequest) |
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return |
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} |
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|
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// Get events in the requested range
|
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events, err := m.getEventsBySerialRange(req.From, req.To) |
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if err != nil { |
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http.Error(w, fmt.Sprintf("Failed to get events: %v", err), http.StatusInternalServerError) |
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return |
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} |
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|
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resp := FetchResponse{ |
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Events: events, |
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} |
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|
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w.Header().Set("Content-Type", "application/json") |
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json.NewEncoder(w).Encode(resp) |
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} |
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Loading…
Reference in new issue