commit 2face30c8ba481c48acf6e8353acb0ff93c8e9c2 · hailey.at/cocoon

+73 -54

identity/identity.go

···

       13
        
       	"github.com/bluesky-social/indigo/util"

     

       14
        
       )

     

       15
        
       

     

       16
       -
       func ResolveHandle(ctx context.Context, cli *http.Client, handle string) (string, error) {

     

       17
       -
       	if cli == nil {

     

       18
       -
       		cli = util.RobustHTTPClient()

     

       19
       -
       	}

     

       20
       -
       

     

       21
       -
       	var did string

     

       22
       -
       

     

       23
       -
       	_, err := syntax.ParseHandle(handle)

     

       24
        
       	if err != nil {

     

       25
       -
       		return "", err

     

       26
        
       	}

     

       27
        
       

     

       28
       -
       	recs, err := net.LookupTXT(fmt.Sprintf("_atproto.%s", handle))

     

       29
       -
       	if err == nil {

     

       30
       -
       		for _, rec := range recs {

     

       31
       -
       			if strings.HasPrefix(rec, "did=") {

     

       32
       -
       				did = strings.Split(rec, "did=")[1]

     

       33
       -
       				break

     

       34
        
       			}

     

       35
        
       		}

     

       36
       -
       	} else {

     

       37
       -
       		fmt.Printf("erorr getting txt records: %v\n", err)

     

       38
        
       	}

     

       39
        
       

     

       40
       -
       	if did == "" {

     

       41
       -
       		req, err := http.NewRequestWithContext(

     

       42
       -
       			ctx,

     

       43
       -
       			"GET",

     

       44
       -
       			fmt.Sprintf("https://%s/.well-known/atproto-did", handle),

     

       45
       -
       			nil,

     

       46
       -
       		)

     

       47
       -
       		if err != nil {

     

       48
       -
       			return "", nil

     

       49
       -
       		}

     

       50
        
       

     

       51
       -
       		resp, err := http.DefaultClient.Do(req)

     

       52
       -
       		if err != nil {

     

       53
       -
       			return "", nil

     

       54
       -
       		}

     

       55
       -
       		defer resp.Body.Close()

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       56
        
       

     

       57
       -
       		if resp.StatusCode != http.StatusOK {

     

       58
       -
       			io.Copy(io.Discard, resp.Body)

     

       59
       -
       			return "", fmt.Errorf("unable to resolve handle")

     

       60
       -
       		}

     

       0
        
       
     

       61
        
       

     

       62
       -
       		b, err := io.ReadAll(resp.Body)

     

       63
       -
       		if err != nil {

     

       64
       -
       			return "", err

     

       65
       -
       		}

     

       66
        
       

     

       67
       -
       		maybeDid := string(b)

     

       0
        
       
     

       0
        
       
     

       68
        
       

     

       69
       -
       		if _, err := syntax.ParseDID(maybeDid); err != nil {

     

       70
       -
       			return "", fmt.Errorf("unable to resolve handle")

     

       71
       -
       		}

     

       72
        
       

     

       73
       -
       		did = maybeDid

     

       0
        
       
     

       74
        
       	}

     

       75
        
       

     

       76
       -
       	return did, nil

     

       77
        
       }

     

       78
        
       

     

       79
       -
       func FetchDidDoc(ctx context.Context, cli *http.Client, did string) (*DidDoc, error) {

     

       80
        
       	if cli == nil {

     

       81
        
       		cli = util.RobustHTTPClient()

     

       82
        
       	}

     

       83
        
       

     

       84
       -
       	var ustr string

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       85
        
       	if strings.HasPrefix(did, "did:plc:") {

     

       86
       -
       		ustr = fmt.Sprintf("https://plc.directory/%s", did)

     

       87
        
       	} else if strings.HasPrefix(did, "did:web:") {

     

       88
       -
       		ustr = fmt.Sprintf("https://%s/.well-known/did.json", strings.TrimPrefix(did, "did:web:"))

     

       89
        
       	} else {

     

       90
       -
       		return nil, fmt.Errorf("did was not a supported did type")

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       91
        
       	}

     

       92
        
       

     

       93
        
       	req, err := http.NewRequestWithContext(ctx, "GET", ustr, nil)

     
···

       95
        
       		return nil, err

     

       96
        
       	}

     

       97
        
       

     

       98
       -
       	resp, err := http.DefaultClient.Do(req)

     

       99
        
       	if err != nil {

     

       100
        
       		return nil, err

     

       101
        
       	}

     
···

       103
        
       

     

       104
        
       	if resp.StatusCode != 200 {

     

       105
        
       		io.Copy(io.Discard, resp.Body)

     

       106
       -
       		return nil, fmt.Errorf("could not find identity in plc registry")

     

       107
        
       	}

     

       108
        
       

     

       109
        
       	var diddoc DidDoc

     
···

       127
        
       		return nil, err

     

       128
        
       	}

     

       129
        
       

     

       130
       -
       	resp, err := http.DefaultClient.Do(req)

     

       131
        
       	if err != nil {

     

       132
        
       		return nil, err

     

       133
        
       	}

···

       13
        
       	"github.com/bluesky-social/indigo/util"

     

       14
        
       )

     

       15
        
       

     

       16
       +
       func ResolveHandleFromTXT(ctx context.Context, handle string) (string, error) {

     

       17
       +
       	name := fmt.Sprintf("_atproto.%s", handle)

     

       18
       +
       	recs, err := net.LookupTXT(name)

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       19
        
       	if err != nil {

     

       20
       +
       		return "", fmt.Errorf("handle could not be resolved via txt: %w", err)

     

       21
        
       	}

     

       22
        
       

     

       23
       +
       	for _, rec := range recs {

     

       24
       +
       		if strings.HasPrefix(rec, "did=") {

     

       25
       +
       			maybeDid := strings.Split(rec, "did=")[1]

     

       26
       +
       			if _, err := syntax.ParseDID(maybeDid); err == nil {

     

       27
       +
       				return maybeDid, nil

     

       0
        
       
     

       28
        
       			}

     

       29
        
       		}

     

       0
        
       
     

       0
        
       
     

       30
        
       	}

     

       31
        
       

     

       32
       +
       	return "", fmt.Errorf("handle could not be resolved via txt: no record found")

     

       33
       +
       }

     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       0
        
       
     

       34
        
       

     

       35
       +
       func ResolveHandleFromWellKnown(ctx context.Context, cli *http.Client, handle string) (string, error) {

     

       36
       +
       	ustr := fmt.Sprintf("https://%s/.well=known/atproto-did", handle)

     

       37
       +
       	req, err := http.NewRequestWithContext(

     

       38
       +
       		ctx,

     

       39
       +
       		"GET",

     

       40
       +
       		ustr,

     

       41
       +
       		nil,

     

       42
       +
       	)

     

       43
       +
       	if err != nil {

     

       44
       +
       		return "", fmt.Errorf("handle could not be resolved via web: %w", err)

     

       45
       +
       	}

     

       46
        
       

     

       47
       +
       	resp, err := cli.Do(req)

     

       48
       +
       	if err != nil {

     

       49
       +
       		return "", fmt.Errorf("handle could not be resolved via web: %w", err)

     

       50
       +
       	}

     

       51
       +
       	defer resp.Body.Close()

     

       52
        
       

     

       53
       +
       	b, err := io.ReadAll(resp.Body)

     

       54
       +
       	if err != nil {

     

       55
       +
       		return "", fmt.Errorf("handle could not be resolved via web: %w", err)

     

       56
       +
       	}

     

       57
        
       

     

       58
       +
       	if resp.StatusCode != http.StatusOK {

     

       59
       +
       		return "", fmt.Errorf("handle could not be resolved via web: invalid status code %d", resp.StatusCode)

     

       60
       +
       	}

     

       61
        
       

     

       62
       +
       	maybeDid := string(b)

     

       0
        
       
     

       0
        
       
     

       63
        
       

     

       64
       +
       	if _, err := syntax.ParseDID(maybeDid); err != nil {

     

       65
       +
       		return "", fmt.Errorf("handle could not be resolved via web: invalid did in document")

     

       66
        
       	}

     

       67
        
       

     

       68
       +
       	return maybeDid, nil

     

       69
        
       }

     

       70
        
       

     

       71
       +
       func ResolveHandle(ctx context.Context, cli *http.Client, handle string) (string, error) {

     

       72
        
       	if cli == nil {

     

       73
        
       		cli = util.RobustHTTPClient()

     

       74
        
       	}

     

       75
        
       

     

       76
       +
       	_, err := syntax.ParseHandle(handle)

     

       77
       +
       	if err != nil {

     

       78
       +
       		return "", err

     

       79
       +
       	}

     

       80
       +
       

     

       81
       +
       	if maybeDidFromTxt, err := ResolveHandleFromTXT(ctx, handle); err == nil {

     

       82
       +
       		return maybeDidFromTxt, nil

     

       83
       +
       	}

     

       84
       +
       

     

       85
       +
       	if maybeDidFromWeb, err := ResolveHandleFromWellKnown(ctx, cli, handle); err == nil {

     

       86
       +
       		return maybeDidFromWeb, nil

     

       87
       +
       	}

     

       88
       +
       

     

       89
       +
       	return "", fmt.Errorf("handle could not be resolved")

     

       90
       +
       }

     

       91
       +
       

     

       92
       +
       func DidToDocUrl(did string) (string, error) {

     

       93
        
       	if strings.HasPrefix(did, "did:plc:") {

     

       94
       +
       		return fmt.Sprintf("https://plc.directory/%s", did), nil

     

       95
        
       	} else if strings.HasPrefix(did, "did:web:") {

     

       96
       +
       		return fmt.Sprintf("https://%s/.well-known/did.json", strings.TrimPrefix(did, "did:web:")), nil

     

       97
        
       	} else {

     

       98
       +
       		return "", fmt.Errorf("did was not a supported did type")

     

       99
       +
       	}

     

       100
       +
       }

     

       101
       +
       

     

       102
       +
       func FetchDidDoc(ctx context.Context, cli *http.Client, did string) (*DidDoc, error) {

     

       103
       +
       	if cli == nil {

     

       104
       +
       		cli = util.RobustHTTPClient()

     

       105
       +
       	}

     

       106
       +
       

     

       107
       +
       	ustr, err := DidToDocUrl(did)

     

       108
       +
       	if err != nil {

     

       109
       +
       		return nil, err

     

       110
        
       	}

     

       111
        
       

     

       112
        
       	req, err := http.NewRequestWithContext(ctx, "GET", ustr, nil)

     
···

       114
        
       		return nil, err

     

       115
        
       	}

     

       116
        
       

     

       117
       +
       	resp, err := cli.Do(req)

     

       118
        
       	if err != nil {

     

       119
        
       		return nil, err

     

       120
        
       	}

     
···

       122
        
       

     

       123
        
       	if resp.StatusCode != 200 {

     

       124
        
       		io.Copy(io.Discard, resp.Body)

     

       125
       +
       		return nil, fmt.Errorf("unable to find did doc at url. did: %s. url: %s", did, ustr)

     

       126
        
       	}

     

       127
        
       

     

       128
        
       	var diddoc DidDoc

     
···

       146
        
       		return nil, err

     

       147
        
       	}

     

       148
        
       

     

       149
       +
       	resp, err := cli.Do(req)

     

       150
        
       	if err != nil {

     

       151
        
       		return nil, err

     

       152
        
       	}

+16 -5

identity/passport.go

···

       19
        
       type Passport struct {

     

       20
        
       	h  *http.Client

     

       21
        
       	bc BackingCache

     

       22
       -
       	lk sync.Mutex

     

       23
        
       }

     

       24
        
       

     

       25
        
       func NewPassport(h *http.Client, bc BackingCache) *Passport {

     
···

       30
        
       	return &Passport{

     

       31
        
       		h:  h,

     

       32
        
       		bc: bc,

     

       33
       -
       		lk: sync.Mutex{},

     

       34
        
       	}

     

       35
        
       }

     

       36
        
       

     
···

       38
        
       	skipCache, _ := ctx.Value("skip-cache").(bool)

     

       39
        
       

     

       40
        
       	if !skipCache {

     

       0
        
       
     

       41
        
       		cached, ok := p.bc.GetDoc(did)

     

       0
        
       
     

       0
        
       
     

       42
        
       		if ok {

     

       43
        
       			return cached, nil

     

       44
        
       		}

     

       45
        
       	}

     

       46
        
       

     

       47
       -
       	p.lk.Lock() // this is pretty pathetic, and i should rethink this. but for now, fuck it

     

       48
       -
       	defer p.lk.Unlock()

     

       49
       -
       

     

       50
        
       	doc, err := FetchDidDoc(ctx, p.h, did)

     

       51
        
       	if err != nil {

     

       52
        
       		return nil, err

     

       53
        
       	}

     

       54
        
       

     

       0
        
       
     

       55
        
       	p.bc.PutDoc(did, doc)

     

       0
        
       
     

       56
        
       

     

       57
        
       	return doc, nil

     

       58
        
       }

     
···

       61
        
       	skipCache, _ := ctx.Value("skip-cache").(bool)

     

       62
        
       

     

       63
        
       	if !skipCache {

     

       0
        
       
     

       64
        
       		cached, ok := p.bc.GetDid(handle)

     

       0
        
       
     

       0
        
       
     

       65
        
       		if ok {

     

       66
        
       			return cached, nil

     

       67
        
       		}

     
···

       72
        
       		return "", err

     

       73
        
       	}

     

       74
        
       

     

       0
        
       
     

       75
        
       	p.bc.PutDid(handle, did)

     

       0
        
       
     

       76
        
       

     

       77
        
       	return did, nil

     

       78
        
       }

     

       79
        
       

     

       80
        
       func (p *Passport) BustDoc(ctx context.Context, did string) error {

     

       0
        
       
     

       0
        
       
     

       81
        
       	return p.bc.BustDoc(did)

     

       82
        
       }

     

       83
        
       

     

       84
        
       func (p *Passport) BustDid(ctx context.Context, handle string) error {

     

       0
        
       
     

       0
        
       
     

       85
        
       	return p.bc.BustDid(handle)

     

       86
        
       }

···

       19
        
       type Passport struct {

     

       20
        
       	h  *http.Client

     

       21
        
       	bc BackingCache

     

       22
       +
       	mu sync.RWMutex

     

       23
        
       }

     

       24
        
       

     

       25
        
       func NewPassport(h *http.Client, bc BackingCache) *Passport {

     
···

       30
        
       	return &Passport{

     

       31
        
       		h:  h,

     

       32
        
       		bc: bc,

     

       0
        
       
     

       33
        
       	}

     

       34
        
       }

     

       35
        
       

     
···

       37
        
       	skipCache, _ := ctx.Value("skip-cache").(bool)

     

       38
        
       

     

       39
        
       	if !skipCache {

     

       40
       +
       		p.mu.RLock()

     

       41
        
       		cached, ok := p.bc.GetDoc(did)

     

       42
       +
       		p.mu.RUnlock()

     

       43
       +
       

     

       44
        
       		if ok {

     

       45
        
       			return cached, nil

     

       46
        
       		}

     

       47
        
       	}

     

       48
        
       

     

       49
       +
       	// TODO: should coalesce requests here

     

       0
        
       
     

       0
        
       
     

       50
        
       	doc, err := FetchDidDoc(ctx, p.h, did)

     

       51
        
       	if err != nil {

     

       52
        
       		return nil, err

     

       53
        
       	}

     

       54
        
       

     

       55
       +
       	p.mu.Lock()

     

       56
        
       	p.bc.PutDoc(did, doc)

     

       57
       +
       	p.mu.Unlock()

     

       58
        
       

     

       59
        
       	return doc, nil

     

       60
        
       }

     
···

       63
        
       	skipCache, _ := ctx.Value("skip-cache").(bool)

     

       64
        
       

     

       65
        
       	if !skipCache {

     

       66
       +
       		p.mu.RLock()

     

       67
        
       		cached, ok := p.bc.GetDid(handle)

     

       68
       +
       		p.mu.RUnlock()

     

       69
       +
       

     

       70
        
       		if ok {

     

       71
        
       			return cached, nil

     

       72
        
       		}

     
···

       77
        
       		return "", err

     

       78
        
       	}

     

       79
        
       

     

       80
       +
       	p.mu.Lock()

     

       81
        
       	p.bc.PutDid(handle, did)

     

       82
       +
       	p.mu.Unlock()

     

       83
        
       

     

       84
        
       	return did, nil

     

       85
        
       }

     

       86
        
       

     

       87
        
       func (p *Passport) BustDoc(ctx context.Context, did string) error {

     

       88
       +
       	p.mu.Lock()

     

       89
       +
       	defer p.mu.Unlock()

     

       90
        
       	return p.bc.BustDoc(did)

     

       91
        
       }

     

       92
        
       

     

       93
        
       func (p *Passport) BustDid(ctx context.Context, handle string) error {

     

       94
       +
       	p.mu.Lock()

     

       95
       +
       	defer p.mu.Unlock()

     

       96
        
       	return p.bc.BustDid(handle)

     

       97
        
       }