136 lines
3.5 KiB
Plaintext
136 lines
3.5 KiB
Plaintext
Index: internal/oauth/claude/oauth.go
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--- internal/oauth/claude/oauth.go.orig
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+++ internal/oauth/claude/oauth.go
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@@ -0,0 +1,131 @@
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+package claude
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+
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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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+ "io"
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+ "net/http"
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+ "net/url"
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+ "strings"
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+ "time"
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+
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+ "github.com/charmbracelet/crush/internal/oauth"
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+)
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+
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+const (
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+ clientId = "9d1c250a-e61b-44d9-88ed-5944d1962f5e"
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+ tokenURL = "https://platform.claude.com/v1/oauth/token"
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+ redirectURI = "https://platform.claude.com/oauth/code/callback"
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+)
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+
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+// AuthorizeURL returns the Claude Code Max OAuth2 authorization URL.
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+func AuthorizeURL(verifier, challenge string) (string, error) {
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+ u, err := url.Parse("https://platform.claude.com/oauth/authorize")
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+ if err != nil {
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+ return "", err
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+ }
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+ q := u.Query()
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+ q.Set("code", "true")
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+ q.Set("client_id", clientId)
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+ q.Set("response_type", "code")
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+ q.Set("redirect_uri", redirectURI)
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+ q.Set("scope", "org:create_api_key user:profile user:inference user:sessions:claude_code user:mcp_servers user:file_upload")
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+ q.Set("code_challenge", challenge)
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+ q.Set("code_challenge_method", "S256")
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+ q.Set("state", verifier)
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+ u.RawQuery = q.Encode()
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+ return u.String(), nil
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+}
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+
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+// ExchangeToken exchanges the authorization code for an OAuth2 token.
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+func ExchangeToken(ctx context.Context, code, verifier string) (*oauth.Token, error) {
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+ code = strings.TrimSpace(code)
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+ parts := strings.SplitN(code, "#", 2)
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+ pure := parts[0]
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+ state := ""
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+ if len(parts) > 1 {
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+ state = parts[1]
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+ }
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+
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+ reqBody := map[string]string{
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+ "code": pure,
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+ "state": state,
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+ "grant_type": "authorization_code",
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+ "client_id": clientId,
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+ "redirect_uri": redirectURI,
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+ "code_verifier": verifier,
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+ }
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+
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+ resp, err := request(ctx, "POST", tokenURL, reqBody)
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+ if err != nil {
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+ return nil, err
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+ }
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+ defer resp.Body.Close()
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+
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+ body, err := io.ReadAll(resp.Body)
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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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+ if resp.StatusCode != http.StatusOK {
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+ return nil, fmt.Errorf("claude code max: failed to exchange token: status %d body %q", resp.StatusCode, string(body))
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+ }
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+
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+ var token oauth.Token
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+ if err := json.Unmarshal(body, &token); err != nil {
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+ return nil, err
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+ }
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+ token.SetExpiresAt()
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+ return &token, nil
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+}
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+
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+// RefreshToken refreshes the OAuth2 token using the provided refresh token.
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+func RefreshToken(ctx context.Context, refreshToken string) (*oauth.Token, error) {
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+ reqBody := map[string]string{
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+ "grant_type": "refresh_token",
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+ "refresh_token": refreshToken,
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+ "client_id": clientId,
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+ }
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+
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+ resp, err := request(ctx, "POST", tokenURL, reqBody)
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+ if err != nil {
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+ return nil, err
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+ }
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+ defer resp.Body.Close()
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+
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+ body, err := io.ReadAll(resp.Body)
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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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+ if resp.StatusCode != http.StatusOK {
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+ return nil, fmt.Errorf("claude code max: failed to refresh token: status %d body %q", resp.StatusCode, string(body))
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+ }
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+
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+ var token oauth.Token
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+ if err := json.Unmarshal(body, &token); err != nil {
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+ return nil, err
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+ }
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+ token.SetExpiresAt()
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+ return &token, nil
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+}
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+
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+func request(ctx context.Context, method, url string, body any) (*http.Response, error) {
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+ date, err := json.Marshal(body)
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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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+ req, err := http.NewRequestWithContext(ctx, method, url, bytes.NewReader(date))
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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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+ req.Header.Set("Content-Type", "application/json")
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+ req.Header.Set("User-Agent", "claude-code/2.1.112")
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+
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+ client := &http.Client{Timeout: 30 * time.Second}
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+ return client.Do(req)
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+}
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