mirror of
https://github.com/aljazceru/njump.git
synced 2025-12-17 22:34:25 +01:00
move grabData() into a separate file.
This commit is contained in:
fiatjaf
202
render.go
202
render.go
@@ -1,220 +1,18 @@
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package main
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import (
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"context"
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_ "embed"
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"encoding/json"
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"fmt"
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"html"
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"net/http"
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"net/url"
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"regexp"
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"strings"
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"time"
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"github.com/nbd-wtf/go-nostr"
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"github.com/nbd-wtf/go-nostr/nip19"
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"github.com/pelletier/go-toml"
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)
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type Event struct {
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Npub string
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NpubShort string
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Nevent string
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Content string
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CreatedAt string
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ModifiedAt string
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ParentNevent string
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}
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type Data struct {
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typ string
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event *nostr.Event
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npub string
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npubShort string
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nevent string
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naddr string
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createdAt string
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modifiedAt string
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parentNevent string
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metadata nostr.ProfileMetadata
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authorRelays []string
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authorLong string
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authorShort string
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renderableLastNotes []*Event
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kindDescription string
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kindNIP string
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video string
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videoType string
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image string
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content string
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}
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func grabData(ctx context.Context, code string, isProfileSitemap bool) (*Data, error) {
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// code can be a nevent, nprofile, npub or nip05 identifier, in which case we try to fetch the associated event
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event, err := getEvent(ctx, code)
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if err != nil {
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log.Warn().Err(err).Str("code", code).Msg("failed to fetch event for code")
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return nil, err
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}
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npub, _ := nip19.EncodePublicKey(event.PubKey)
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nevent, _ := nip19.EncodeEvent(event.ID, []string{}, event.PubKey)
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naddr := ""
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createdAt := time.Unix(int64(event.CreatedAt), 0).Format("2006-01-02 15:04:05")
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modifiedAt := time.Unix(int64(event.CreatedAt), 0).Format("2006-01-02T15:04:05Z07:00")
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author := event
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var renderableLastNotes []*Event
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parentNevent := ""
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authorRelays := []string{}
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var content string
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var typ string
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switch event.Kind {
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case 0:
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key := ""
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eventsToFetch := 100
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if isProfileSitemap {
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typ = "profile_sitemap"
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key = "lns:" + event.PubKey
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eventsToFetch = 50000
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} else {
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typ = "profile"
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key = "ln:" + event.PubKey
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}
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rawAuthorRelays := []string{}
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ctx, cancel := context.WithTimeout(ctx, time.Second*4)
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rawAuthorRelays = relaysForPubkey(ctx, event.PubKey)
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cancel()
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for _, relay := range rawAuthorRelays {
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for _, excluded := range excludedRelays {
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if strings.Contains(relay, excluded) {
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continue
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}
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}
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if strings.Contains(relay, "/npub1") {
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continue // Skip relays with personalyzed query like filter.nostr.wine
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}
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authorRelays = append(authorRelays, trimProtocol(relay))
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}
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var lastNotes []*nostr.Event
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if ok := cache.GetJSON(key, &lastNotes); !ok {
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ctx, cancel := context.WithTimeout(ctx, time.Second*4)
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lastNotes = getLastNotes(ctx, code, eventsToFetch)
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cancel()
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if len(lastNotes) > 0 {
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cache.SetJSONWithTTL(key, lastNotes, time.Hour*24)
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}
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}
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renderableLastNotes = make([]*Event, len(lastNotes))
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for i, n := range lastNotes {
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nevent, _ := nip19.EncodeEvent(n.ID, []string{}, n.PubKey)
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renderableLastNotes[i] = &Event{
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Nevent: nevent,
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Content: n.Content,
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CreatedAt: time.Unix(int64(n.CreatedAt), 0).Format("2006-01-02 15:04:05"),
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ModifiedAt: time.Unix(int64(n.CreatedAt), 0).Format("2006-01-02T15:04:05Z07:00"),
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ParentNevent: getParentNevent(n),
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}
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}
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if err != nil {
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return nil, err
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}
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case 1, 7, 30023, 30024:
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typ = "note"
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content = event.Content
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parentNevent = getParentNevent(event)
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case 6:
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typ = "note"
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if reposted := event.Tags.GetFirst([]string{"e", ""}); reposted != nil {
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original_nevent, _ := nip19.EncodeEvent((*reposted)[1], []string{}, "")
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content = "Repost of nostr:" + original_nevent
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}
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default:
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if event.Kind >= 30000 && event.Kind < 40000 {
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typ = "address"
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if d := event.Tags.GetFirst([]string{"d", ""}); d != nil {
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naddr, _ = nip19.EncodeEntity(event.PubKey, event.Kind, d.Value(), []string{})
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}
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} else {
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typ = "other"
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}
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}
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if event.Kind != 0 {
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ctx, cancel := context.WithTimeout(ctx, time.Second*3)
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author, _ = getEvent(ctx, npub)
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cancel()
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}
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kindDescription := kindNames[event.Kind]
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if kindDescription == "" {
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kindDescription = fmt.Sprintf("Kind %d", event.Kind)
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}
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kindNIP := kindNIPs[event.Kind]
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imageMatch := regexp.MustCompile(`https:\/\/[^ ]*\.(gif|jpe?g|png|webp)`).FindStringSubmatch(event.Content)
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var image string
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if len(imageMatch) > 0 {
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image = imageMatch[0]
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}
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videoMatch := regexp.MustCompile(`https:\/\/[^ ]*\.(mp4|webm)`).FindStringSubmatch(event.Content)
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var video string
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if len(videoMatch) > 0 {
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video = videoMatch[0]
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}
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var videoType string
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if video != "" {
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if strings.HasSuffix(video, "mp4") {
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videoType = "mp4"
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} else {
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videoType = "webm"
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}
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}
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npubShort := npub[:8] + "…" + npub[len(npub)-4:]
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authorLong := npub
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authorShort := npubShort
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var metadata nostr.ProfileMetadata
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if author != nil {
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if err := json.Unmarshal([]byte(author.Content), &metadata); err == nil {
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authorLong = fmt.Sprintf("%s (%s)", metadata.Name, npub)
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authorShort = fmt.Sprintf("%s (%s)", metadata.Name, npubShort)
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}
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}
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return &Data{
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typ: typ,
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event: event,
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npub: npub,
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npubShort: npubShort,
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nevent: nevent,
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naddr: naddr,
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authorRelays: authorRelays,
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createdAt: createdAt,
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modifiedAt: modifiedAt,
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parentNevent: parentNevent,
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metadata: metadata,
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authorLong: authorLong,
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authorShort: authorShort,
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renderableLastNotes: renderableLastNotes,
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kindNIP: kindNIP,
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kindDescription: kindDescription,
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video: video,
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videoType: videoType,
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image: image,
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content: content,
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}, nil
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}
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func render(w http.ResponseWriter, r *http.Request) {
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fmt.Println(r.URL.Path, "#/", r.Header.Get("user-agent"))
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w.Header().Set("Content-Type", "text/html")
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