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1package atproto
2
3import (
4 "context"
5 "net"
6 "net/http"
7 "time"
8
9 "github.com/bluesky-social/indigo/atproto/identity"
10 "github.com/bluesky-social/indigo/atproto/syntax"
11 "github.com/carlmjohnson/versioninfo"
12)
13
14type Resolver struct {
15 directory identity.Directory
16}
17
18func DefaultResolver() *Resolver {
19 return &Resolver{
20 directory: identity.DefaultDirectory(),
21 }
22}
23
24func BaseDirectory() identity.Directory {
25 base := identity.BaseDirectory{
26 PLCURL: identity.DefaultPLCURL,
27 HTTPClient: http.Client{
28 Timeout: time.Second * 10,
29 Transport: &http.Transport{
30 // would want this around 100ms for services doing lots of handle resolution. Impacts PLC connections as well, but not too bad.
31 IdleConnTimeout: time.Millisecond * 1000,
32 MaxIdleConns: 100,
33 },
34 },
35 Resolver: net.Resolver{
36 Dial: func(ctx context.Context, network, address string) (net.Conn, error) {
37 d := net.Dialer{Timeout: time.Second * 3}
38 return d.DialContext(ctx, network, address)
39 },
40 },
41 TryAuthoritativeDNS: true,
42 // Primary Bluesky PDS instance only supports HTTP resolution method.
43 SkipDNSDomainSuffixes: []string{".bsky.social"},
44 UserAgent: "indigo-identity/" + versioninfo.Short(),
45 }
46 return &base
47}
48
49func (r *Resolver) ResolveIdent(ctx context.Context, arg string) (*identity.Identity, error) {
50 id, err := syntax.ParseAtIdentifier(arg)
51 if err != nil {
52 return nil, err
53 }
54
55 return r.directory.Lookup(ctx, id)
56}
57
58func (r *Resolver) Directory() identity.Directory {
59 return r.directory
60}