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chore: remove dead Clerk auth code #1925

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217 changes: 1 addition & 216 deletions internal/clerk/clerk.go
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Original file line number Diff line number Diff line change
Expand Up @@ -5,235 +5,20 @@
package clerk

import (
"context"
"encoding/json"
"net/http"
"net/url"
"strings"
"sync"
"time"

"github.com/spf13/pflag"
"namespacelabs.dev/foundation/internal/fnerrors"
)

var (
ErrUnauthorized = fnerrors.Newf("Unauthorized")

devClerk = false
)

const (
prodAddress = "https://clerk.namespace.so/"
devAddress = "https://clerk.firm.hare-7.lcl.dev"

prodTokenPrefix = "ct_"
devTokenPrefix = "devct_"
)
var devClerk = false

func SetupFlags(flags *pflag.FlagSet) {
flags.BoolVar(&devClerk, "dev_clerk", devClerk, "Use DEV Clerk instance.")
_ = flags.MarkHidden("dev_clerk")
}

type devBrowserResponse struct {
ID string `json:"id"`
InstanceID string `json:"instance_id"`
Token string `json:"token"`
ClientID string `json:"client_id"`
CreatedAt string `json:"created_at"`
UpdatedAt string `json:"updated_at"`
HomeOrigin string `json:"home_origin"`
}

type clerkResponse struct {
Response struct {
Identifier string `json:"identifier"`
} `json:"response"`
Client struct {
Sessions []struct {
User struct {
ExternalAccounts []struct {
Provider string `json:"provider"`
Username string `json:"username"`
Verification struct {
Status string `json:"status"`
}
} `json:"external_accounts"`
} `json:"user"`
} `json:"sessions"`
} `json:"client"`
}

type State struct {
Email string `json:"email,omitempty"`
Name string `json:"name,omitempty"`
ClerkClient string `json:"clerk_client,omitempty"`
GithubUsername string `json:"github_username,omitempty"`
DevSession string `json:"dev_session,omitempty"` // Only for DEV instance
}

func Login(ctx context.Context, ticket string) (*State, error) {
form := url.Values{}
form.Add("strategy", "ticket")
form.Add("ticket", ticket)

devSession := ""
signinsURL := prodAddress + "/v1/client/sign_ins"
if devClerk {
req, err := http.NewRequestWithContext(ctx, "POST", devAddress+"/v1/dev_browser", nil)
if err != nil {
return nil, err
}
req.Header.Add("Origin", "https://accounts.namespace.so")
req.Header.Add("User-Agent", "NamespaceCLI/1.0")

resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()

if resp.StatusCode != 200 {
return nil, fnerrors.InvocationError("login", "failed to authenticate client: %v", resp.Status)
}

var x devBrowserResponse
if err := json.NewDecoder(resp.Body).Decode(&x); err != nil {
return nil, fnerrors.InvocationError("login", "bad response for client authentication: %w", err)
}
devSession = x.Token
signinsURL = devAddress + "/v1/client/sign_ins?__dev_session=" + devSession
}

req, err := http.NewRequestWithContext(ctx, "POST", signinsURL, strings.NewReader(form.Encode()))
if err != nil {
return nil, err
}

req.Header.Add("Origin", "https://accounts.namespace.so")
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
req.Header.Add("User-Agent", "NamespaceCLI/1.0")

resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}

defer resp.Body.Close()

if resp.StatusCode != 200 {
return nil, fnerrors.InvocationError("login", "failed to authenticate: %v", resp.Status)
}

var client string
for _, k := range resp.Cookies() {
if k.Name == "__client" {
client = k.Value
}
}
if k := resp.Header.Get("Clerk-Cookie"); devClerk && k != "" {
client = k
}

if client == "" {
return nil, fnerrors.InvocationError("login", "missing client cookie")
}

var x clerkResponse
if err := json.NewDecoder(resp.Body).Decode(&x); err != nil {
return nil, fnerrors.InvocationError("login", "bad response: %w", err)
}

state := &State{
Email: x.Response.Identifier,
ClerkClient: client,
DevSession: devSession,
}

for _, session := range x.Client.Sessions {
for _, external := range session.User.ExternalAccounts {
if external.Provider == "oauth_github" && external.Verification.Status == "verified" {
state.GithubUsername = external.Username
}
}
}

return state, nil
}

type jwtResponse struct {
JWT string `json:"jwt"`
}

type cachedJWT struct {
JWT string
CreatedAt time.Time
}

var (
tokenCache = map[string]cachedJWT{}
tokenCacheMu sync.Mutex
)

func JWT(ctx context.Context, st *State) (string, error) {
tokenCacheMu.Lock()
defer tokenCacheMu.Unlock()

if cached, ok := tokenCache[st.ClerkClient]; ok {
if time.Now().Before(cached.CreatedAt.Add(10 * time.Second)) {
return cached.JWT, nil
} else {
delete(tokenCache, st.ClerkClient)
}
}

tokenPrefix := prodTokenPrefix
url := prodAddress + "/v1/me/tokens"
if devClerk {
url = devAddress + "/v1/me/tokens?__dev_session=" + st.DevSession
tokenPrefix = devTokenPrefix
}
req, err := http.NewRequestWithContext(ctx, "POST", url, nil)
if err != nil {
return "", err
}

req.AddCookie(&http.Cookie{
Name: "__client",
Value: st.ClerkClient,
})

req.Header.Add("Origin", "https://cli.namespace.so")
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
req.Header.Add("User-Agent", "NamespaceCLI/1.0")

now := time.Now()
resp, err := http.DefaultClient.Do(req)
if err != nil {
return "", fnerrors.InvocationError("jwt", "failed to obtain token: %w", err)
}

defer resp.Body.Close()

if resp.StatusCode != http.StatusOK {
if resp.StatusCode == http.StatusUnauthorized {
return "", ErrUnauthorized
}

return "", fnerrors.InvocationError("jwt", "failed to obtain token: %v", resp.Status)
}

var x jwtResponse
if err := json.NewDecoder(resp.Body).Decode(&x); err != nil {
return "", fnerrors.InvocationError("jwt", "bad response: %w", err)
}

token := tokenPrefix + x.JWT
tokenCache[st.ClerkClient] = cachedJWT{
CreatedAt: now,
JWT: token,
}

return token, nil
}
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