cmd/gemini-login/main.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"cursor-api-proxy/internal/config"
+	"cursor-api-proxy/internal/env"
+	"cursor-api-proxy/internal/providers/geminiweb"
+	"fmt"
+	"os"
+)
+
+func main() {
+	accountName := ""
+	if len(os.Args) > 1 {
+		accountName = os.Args[1]
+	}
+
+	e := env.OsEnvToMap()
+	loaded := env.LoadEnvConfig(e, "")
+	cfg := config.LoadBridgeConfig(e, "")
+
+	cfg.GeminiAccountDir = loaded.GeminiAccountDir
+	cfg.GeminiBrowserVisible = true
+
+	if err := geminiweb.RunLogin(cfg, accountName); err != nil {
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
+	}
+}

go.mod

@@ -9,9 +9,15 @@ require (
 
 require (
 	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/go-rod/rod v0.116.2 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/ncruces/go-strftime v1.0.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/ysmood/fetchup v0.2.3 // indirect
+	github.com/ysmood/goob v0.4.0 // indirect
+	github.com/ysmood/got v0.40.0 // indirect
+	github.com/ysmood/gson v0.7.3 // indirect
+	github.com/ysmood/leakless v0.9.0 // indirect
 	golang.org/x/sys v0.42.0 // indirect
 	modernc.org/libc v1.70.0 // indirect
 	modernc.org/mathutil v1.7.1 // indirect

go.sum

@@ -1,5 +1,7 @@
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/go-rod/rod v0.116.2 h1:A5t2Ky2A+5eD/ZJQr1EfsQSe5rms5Xof/qj296e+ZqA=
+github.com/go-rod/rod v0.116.2/go.mod h1:H+CMO9SCNc2TJ2WfrG+pKhITz57uGNYU43qYHh438Mg=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
@@ -12,6 +14,17 @@ github.com/ncruces/go-strftime v1.0.0 h1:HMFp8mLCTPp341M/ZnA4qaf7ZlsbTc+miZjCLOF
 github.com/ncruces/go-strftime v1.0.0/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+github.com/ysmood/fetchup v0.2.3 h1:ulX+SonA0Vma5zUFXtv52Kzip/xe7aj4vqT5AJwQ+ZQ=
+github.com/ysmood/fetchup v0.2.3/go.mod h1:xhibcRKziSvol0H1/pj33dnKrYyI2ebIvz5cOOkYGns=
+github.com/ysmood/goob v0.4.0 h1:HsxXhyLBeGzWXnqVKtmT9qM7EuVs/XOgkX7T6r1o1AQ=
+github.com/ysmood/goob v0.4.0/go.mod h1:u6yx7ZhS4Exf2MwciFr6nIM8knHQIE22lFpWHnfql18=
+github.com/ysmood/got v0.40.0 h1:ZQk1B55zIvS7zflRrkGfPDrPG3d7+JOza1ZkNxcc74Q=
+github.com/ysmood/got v0.40.0/go.mod h1:W7DdpuX6skL3NszLmAsC5hT7JAhuLZhByVzHTq874Qg=
+github.com/ysmood/gotrace v0.6.0/go.mod h1:TzhIG7nHDry5//eYZDYcTzuJLYQIkykJzCRIo4/dzQM=
+github.com/ysmood/gson v0.7.3 h1:QFkWbTH8MxyUTKPkVWAENJhxqdBa4lYTQWqZCiLG6kE=
+github.com/ysmood/gson v0.7.3/go.mod h1:3Kzs5zDl21g5F/BlLTNcuAGAYLKt2lV5G8D1zF3RNmg=
+github.com/ysmood/leakless v0.9.0 h1:qxCG5VirSBvmi3uynXFkcnLMzkphdh3xx5FtrORwDCU=
+github.com/ysmood/leakless v0.9.0/go.mod h1:R8iAXPRaG97QJwqxs74RdwzcRHT1SWCGTNqY8q0JvMQ=
 golang.org/x/mod v0.33.0 h1:tHFzIWbBifEmbwtGz65eaWyGiGZatSrT9prnU8DbVL8=
 golang.org/x/mod v0.33.0/go.mod h1:swjeQEj+6r7fODbD2cqrnje9PnziFuw4bmLbBZFrQ5w=
 golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=

internal/apitypes/types.go

@@ -0,0 +1,40 @@
+package apitypes
+
+type Message struct {
+	Role    string
+	Content string
+}
+
+type Tool struct {
+	Type     string
+	Function ToolFunction
+}
+
+type ToolFunction struct {
+	Name        string
+	Description string
+	Parameters  interface{}
+}
+
+type ToolCall struct {
+	ID        string
+	Name      string
+	Arguments string
+}
+
+type StreamChunk struct {
+	Type     ChunkType
+	Text     string
+	Thinking string
+	ToolCall *ToolCall
+	Done     bool
+}
+
+type ChunkType int
+
+const (
+	ChunkText ChunkType = iota
+	ChunkThinking
+	ChunkToolCall
+	ChunkDone
+)

internal/config/config.go

@@ -11,6 +11,7 @@ type BridgeConfig struct {
 	RequiredKey          string
 	DefaultModel         string
 	Mode                 string
+	Provider             string
 	Force                bool
 	ApproveMcps          bool
 	StrictModel          bool
@@ -25,6 +26,9 @@ type BridgeConfig struct {
 	ConfigDirs           []string
 	MultiPort            bool
 	WinCmdlineMax        int
+	GeminiAccountDir     string
+	GeminiBrowserVisible bool
+	GeminiMaxSessions    int
 }
 
 func LoadBridgeConfig(e env.EnvSource, cwd string) BridgeConfig {
@@ -36,6 +40,7 @@ func LoadBridgeConfig(e env.EnvSource, cwd string) BridgeConfig {
 		RequiredKey:          loaded.RequiredKey,
 		DefaultModel:         loaded.DefaultModel,
 		Mode:                 "ask",
+		Provider:             loaded.Provider,
 		Force:                loaded.Force,
 		ApproveMcps:          loaded.ApproveMcps,
 		StrictModel:          loaded.StrictModel,
@@ -50,5 +55,8 @@ func LoadBridgeConfig(e env.EnvSource, cwd string) BridgeConfig {
 		ConfigDirs:           loaded.ConfigDirs,
 		MultiPort:            loaded.MultiPort,
 		WinCmdlineMax:        loaded.WinCmdlineMax,
+		GeminiAccountDir:     loaded.GeminiAccountDir,
+		GeminiBrowserVisible: loaded.GeminiBrowserVisible,
+		GeminiMaxSessions:    loaded.GeminiMaxSessions,
 	}
 }

internal/env/env.go

@@ -20,6 +20,7 @@ type LoadedEnv struct {
 	Port                 int
 	RequiredKey          string
 	DefaultModel         string
+	Provider             string
 	Force                bool
 	ApproveMcps          bool
 	StrictModel          bool
@@ -34,6 +35,9 @@ type LoadedEnv struct {
 	ConfigDirs           []string
 	MultiPort            bool
 	WinCmdlineMax        int
+	GeminiAccountDir     string
+	GeminiBrowserVisible bool
+	GeminiMaxSessions    int
 }
 
 type AgentCommand struct {
@@ -256,6 +260,13 @@ func LoadEnvConfig(e EnvSource, cwd string) LoadedEnv {
 		workspace = cwd
 	}
 
+	geminiAccountDir := getEnvVal(e, []string{"GEMINI_ACCOUNT_DIR"})
+	if geminiAccountDir == "" {
+		geminiAccountDir = filepath.Join(home, ".cursor-api-proxy", "gemini-accounts")
+	} else {
+		geminiAccountDir = resolveAbs(geminiAccountDir, cwd)
+	}
+
 	return LoadedEnv{
 		AgentBin:             agentBin,
 		AgentNode:            getEnvVal(e, []string{"CURSOR_AGENT_NODE"}),
@@ -265,6 +276,7 @@ func LoadEnvConfig(e EnvSource, cwd string) LoadedEnv {
 		Port:                 port,
 		RequiredKey:          getEnvVal(e, []string{"CURSOR_BRIDGE_API_KEY"}),
 		DefaultModel:         normalizeModelId(getEnvVal(e, []string{"CURSOR_BRIDGE_DEFAULT_MODEL"})),
+		Provider:             getEnvVal(e, []string{"CURSOR_BRIDGE_PROVIDER"}),
 		Force:                envBool(e, []string{"CURSOR_BRIDGE_FORCE"}, false),
 		ApproveMcps:          envBool(e, []string{"CURSOR_BRIDGE_APPROVE_MCPS"}, false),
 		StrictModel:          envBool(e, []string{"CURSOR_BRIDGE_STRICT_MODEL"}, true),
@@ -279,6 +291,9 @@ func LoadEnvConfig(e EnvSource, cwd string) LoadedEnv {
 		ConfigDirs:           configDirs,
 		MultiPort:            envBool(e, []string{"CURSOR_BRIDGE_MULTI_PORT"}, false),
 		WinCmdlineMax:        winMax,
+		GeminiAccountDir:     geminiAccountDir,
+		GeminiBrowserVisible: envBool(e, []string{"GEMINI_BROWSER_VISIBLE"}, false),
+		GeminiMaxSessions:    envInt(e, []string{"GEMINI_MAX_SESSIONS"}, 3),
 	}
 }
 

internal/providers/cursor/provider.go

@@ -0,0 +1,27 @@
+package cursor
+
+import (
+	"context"
+	"cursor-api-proxy/internal/apitypes"
+	"cursor-api-proxy/internal/config"
+)
+
+type Provider struct {
+	cfg config.BridgeConfig
+}
+
+func NewProvider(cfg config.BridgeConfig) *Provider {
+	return &Provider{cfg: cfg}
+}
+
+func (p *Provider) Name() string {
+	return "cursor"
+}
+
+func (p *Provider) Close() error {
+	return nil
+}
+
+func (p *Provider) Generate(ctx context.Context, model string, messages []apitypes.Message, tools []apitypes.Tool, cb func(apitypes.StreamChunk)) error {
+	return nil
+}

internal/providers/factory.go

@@ -0,0 +1,32 @@
+package providers
+
+import (
+	"context"
+	"cursor-api-proxy/internal/apitypes"
+	"cursor-api-proxy/internal/config"
+	"cursor-api-proxy/internal/providers/cursor"
+	"cursor-api-proxy/internal/providers/geminiweb"
+	"fmt"
+)
+
+type Provider interface {
+	Name() string
+	Close() error
+	Generate(ctx context.Context, model string, messages []apitypes.Message, tools []apitypes.Tool, cb func(apitypes.StreamChunk)) error
+}
+
+func NewProvider(cfg config.BridgeConfig) (Provider, error) {
+	providerType := cfg.Provider
+	if providerType == "" {
+		providerType = "cursor"
+	}
+
+	switch providerType {
+	case "cursor":
+		return cursor.NewProvider(cfg), nil
+	case "gemini-web":
+		return geminiweb.NewProvider(cfg), nil
+	default:
+		return nil, fmt.Errorf("unknown provider: %s", providerType)
+	}
+}

internal/providers/geminiweb/browser.go

@@ -0,0 +1,125 @@
+package geminiweb
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/go-rod/rod"
+	"github.com/go-rod/rod/lib/launcher"
+	"github.com/go-rod/rod/lib/proto"
+)
+
+type Browser struct {
+	browser *rod.Browser
+	visible bool
+}
+
+func NewBrowser(visible bool) (*Browser, error) {
+	l := launcher.New()
+	if visible {
+		l = l.Headless(false)
+	} else {
+		l = l.Headless(true)
+	}
+
+	url, err := l.Launch()
+	if err != nil {
+		return nil, fmt.Errorf("failed to launch browser: %w", err)
+	}
+
+	b := rod.New().ControlURL(url)
+	if err := b.Connect(); err != nil {
+		return nil, fmt.Errorf("failed to connect browser: %w", err)
+	}
+
+	return &Browser{browser: b, visible: visible}, nil
+}
+
+func (b *Browser) Close() error {
+	if b.browser != nil {
+		return b.browser.Close()
+	}
+	return nil
+}
+
+func (b *Browser) NewPage() (*rod.Page, error) {
+	return b.browser.Page(proto.TargetCreateTarget{URL: "about:blank"})
+}
+
+type Cookie struct {
+	Name     string  `json:"name"`
+	Value    string  `json:"value"`
+	Domain   string  `json:"domain"`
+	Path     string  `json:"path"`
+	Expires  float64 `json:"expires"`
+	HTTPOnly bool    `json:"httpOnly"`
+	Secure   bool    `json:"secure"`
+}
+
+func LoadCookiesFromFile(cookieFile string) ([]Cookie, error) {
+	data, err := os.ReadFile(cookieFile)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read cookies: %w", err)
+	}
+
+	var cookies []Cookie
+	if err := json.Unmarshal(data, &cookies); err != nil {
+		return nil, fmt.Errorf("failed to parse cookies: %w", err)
+	}
+
+	return cookies, nil
+}
+
+func SaveCookiesToFile(cookies []Cookie, cookieFile string) error {
+	data, err := json.MarshalIndent(cookies, "", "  ")
+	if err != nil {
+		return fmt.Errorf("failed to marshal cookies: %w", err)
+	}
+
+	dir := filepath.Dir(cookieFile)
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return fmt.Errorf("failed to create cookie dir: %w", err)
+	}
+
+	if err := os.WriteFile(cookieFile, data, 0644); err != nil {
+		return fmt.Errorf("failed to write cookies: %w", err)
+	}
+
+	return nil
+}
+
+func SetCookiesOnPage(page *rod.Page, cookies []Cookie) error {
+	var protoCookies []*proto.NetworkCookieParam
+	for _, c := range cookies {
+		p := &proto.NetworkCookieParam{
+			Name:     c.Name,
+			Value:    c.Value,
+			Domain:   c.Domain,
+			Path:     c.Path,
+			HTTPOnly: c.HTTPOnly,
+			Secure:   c.Secure,
+		}
+		if c.Expires > 0 {
+			exp := proto.TimeSinceEpoch(c.Expires)
+			p.Expires = exp
+		}
+		protoCookies = append(protoCookies, p)
+	}
+	return page.SetCookies(protoCookies)
+}
+
+func WaitForElement(page *rod.Page, selector string, timeout time.Duration) (*rod.Element, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+	return page.Context(ctx).Element(selector)
+}
+
+func WaitForElements(page *rod.Page, selector string, timeout time.Duration) (rod.Elements, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+	return page.Context(ctx).Elements(selector)
+}

internal/providers/geminiweb/page.go

@@ -0,0 +1,194 @@
+package geminiweb
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/go-rod/rod"
+	"github.com/go-rod/rod/lib/proto"
+)
+
+const geminiURL = "https://gemini.google.com/app"
+
+var modelSelectors = map[string]string{
+	"gemini-2.0-flash":        "Flash",
+	"gemini-2.5-pro":          "Pro",
+	"gemini-2.5-pro-thinking": "Thinking",
+}
+
+func NormalizeModel(model string) string {
+	if strings.HasPrefix(model, "gemini-") {
+		return model
+	}
+	return "gemini-" + model
+}
+
+func GetModelDisplayName(model string) string {
+	if name, ok := modelSelectors[model]; ok {
+		return name
+	}
+	return "Flash"
+}
+
+func NavigateToGemini(page *rod.Page) error {
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	if err := page.Context(ctx).Navigate(geminiURL); err != nil {
+		return fmt.Errorf("failed to navigate to gemini: %w", err)
+	}
+	return page.Context(ctx).WaitLoad()
+}
+
+func IsLoggedIn(page *rod.Page) bool {
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	_, err := page.Context(ctx).Element(`[aria-label*="New chat"], [data-test-id*="new-chat"], button[aria-label*="chat"]`)
+	return err == nil
+}
+
+func SelectModel(page *rod.Page, model string) error {
+	displayName := GetModelDisplayName(model)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	modelSwitcher, err := page.Context(ctx).Element(`button[aria-label*="model"], [data-test-id="model-selector"], button[aria-haspopup="listbox"]`)
+	if err != nil {
+		return fmt.Errorf("model selector not found: %w", err)
+	}
+
+	if err := modelSwitcher.Click(proto.InputMouseButtonLeft, 1); err != nil {
+		return fmt.Errorf("failed to click model selector: %w", err)
+	}
+
+	time.Sleep(500 * time.Millisecond)
+
+	option, err := page.Context(ctx).Element(fmt.Sprintf(`[aria-label*="%s"], [data-value="%s"]`, displayName, displayName))
+	if err != nil {
+		return fmt.Errorf("model option %s not found: %w", displayName, err)
+	}
+
+	return option.Click(proto.InputMouseButtonLeft, 1)
+}
+
+func SendPrompt(page *rod.Page, prompt string) error {
+	textarea, err := page.Element(`textarea[aria-label*="message"], textarea[placeholder*="message"], rich-textarea, .ql-editor, div[contenteditable="true"]`)
+	if err != nil {
+		return fmt.Errorf("input field not found: %w", err)
+	}
+
+	if err := textarea.Input(prompt); err != nil {
+		return fmt.Errorf("failed to input prompt: %w", err)
+	}
+
+	time.Sleep(300 * time.Millisecond)
+
+	sendBtn, err := page.Element(`button[aria-label*="Send"], button[aria-label*="submit"], button[type="submit"]`)
+	if err != nil {
+		return fmt.Errorf("send button not found: %w", err)
+	}
+
+	return sendBtn.Click(proto.InputMouseButtonLeft, 1)
+}
+
+func WaitForResponse(page *rod.Page, onChunk func(text string), onThinking func(thinking string), onComplete func()) error {
+	lastText := ""
+	lastThinking := ""
+	responseComplete := false
+
+	timeout := time.NewTimer(120 * time.Second)
+	defer timeout.Stop()
+
+	ticker := time.NewTicker(500 * time.Millisecond)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-timeout.C:
+			return fmt.Errorf("response timeout")
+		case <-ticker.C:
+			textChanged := false
+
+			responseEls, err := page.Elements(`.response-text, message-content, .model-response, div[data-test-id="response"]`)
+			if err == nil && len(responseEls) > 0 {
+				for _, el := range responseEls {
+					text, _ := el.Text()
+					text = strings.TrimSpace(text)
+					if text != "" && text != lastText {
+						if strings.Contains(text, lastText) {
+							newPart := strings.TrimPrefix(text, lastText)
+							if newPart != "" {
+								onChunk(newPart)
+							}
+						} else {
+							onChunk(text)
+						}
+						lastText = text
+						textChanged = true
+					}
+				}
+			}
+
+			thinkingEls, err := page.Elements(`.thinking-content, .thought-text, div[data-test-id="thinking"]`)
+			if err == nil && len(thinkingEls) > 0 {
+				for _, el := range thinkingEls {
+					thinking, _ := el.Text()
+					thinking = strings.TrimSpace(thinking)
+					if thinking != "" && thinking != lastThinking {
+						if strings.Contains(thinking, lastThinking) {
+							newPart := strings.TrimPrefix(thinking, lastThinking)
+							if newPart != "" {
+								onThinking(newPart)
+							}
+						} else {
+							onThinking(thinking)
+						}
+						lastThinking = thinking
+						textChanged = true
+					}
+				}
+			}
+
+			doneBtn, err := page.Element(`button[aria-label*="stop"], button[aria-label*="regenerate"]`)
+			if err == nil && doneBtn != nil {
+				ariaLabel, _ := doneBtn.Attribute("aria-label")
+				if ariaLabel != nil && (*ariaLabel == "Stop" || strings.Contains(*ariaLabel, "regenerate")) {
+					if !responseComplete && lastText != "" {
+						responseComplete = true
+						onComplete()
+						return nil
+					}
+				}
+			}
+
+			if !textChanged && responseComplete {
+				return nil
+			}
+		}
+	}
+}
+
+func IsRateLimited(page *rod.Page) bool {
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+
+	el, err := page.Context(ctx).Element(`[class*="rate-limit"], [class*="quota"], [data-test-id="rate-limited"]`)
+	return err == nil && el != nil
+}
+
+func GetRateLimitMessage(page *rod.Page) string {
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+
+	el, err := page.Context(ctx).Element(`[class*="rate-limit"], [class*="quota"], [class*="error-message"]`)
+	if err != nil || el == nil {
+		return ""
+	}
+
+	text, _ := el.Text()
+	return strings.TrimSpace(text)
+}

internal/providers/geminiweb/pool.go

@@ -0,0 +1,169 @@
+package geminiweb
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"sync"
+	"time"
+)
+
+type GeminiSession struct {
+	Name         string `json:"name"`
+	CookieFile   string `json:"cookie_file"`
+	LastUsed     int64  `json:"last_used"`
+	ActiveCount  int    `json:"active_count"`
+	RateLimitEnd int64  `json:"rate_limit_end"`
+}
+
+type SessionPool struct {
+	mu       sync.Mutex
+	sessions []*GeminiSession
+	dir      string
+	maxCount int
+}
+
+func NewSessionPool(dir string, maxSessions int) (*SessionPool, error) {
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return nil, fmt.Errorf("failed to create session dir: %w", err)
+	}
+
+	sessions, err := loadSessions(dir)
+	if err != nil {
+		return nil, fmt.Errorf("failed to load sessions: %w", err)
+	}
+
+	return &SessionPool{
+		sessions: sessions,
+		dir:      dir,
+		maxCount: maxSessions,
+	}, nil
+}
+
+func loadSessions(dir string) ([]*GeminiSession, error) {
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		return nil, err
+	}
+
+	var sessions []*GeminiSession
+	for _, entry := range entries {
+		if !entry.IsDir() {
+			continue
+		}
+		name := entry.Name()
+		metaPath := filepath.Join(dir, name, "session.json")
+		data, err := os.ReadFile(metaPath)
+		if err != nil {
+			continue
+		}
+
+		var s GeminiSession
+		if err := json.Unmarshal(data, &s); err != nil {
+			continue
+		}
+		sessions = append(sessions, &s)
+	}
+
+	return sessions, nil
+}
+
+func (p *SessionPool) Count() int {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	return len(p.sessions)
+}
+
+func (p *SessionPool) GetAvailable() *GeminiSession {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+
+	now := time.Now().UnixMilli()
+
+	var available []*GeminiSession
+	for _, s := range p.sessions {
+		if s.RateLimitEnd < now {
+			available = append(available, s)
+		}
+	}
+
+	if len(available) == 0 {
+		return nil
+	}
+
+	var best *GeminiSession
+	for _, s := range available {
+		if best == nil || s.ActiveCount < best.ActiveCount {
+			best = s
+		} else if s.ActiveCount == best.ActiveCount && s.LastUsed < best.LastUsed {
+			best = s
+		}
+	}
+
+	return best
+}
+
+func (p *SessionPool) StartSession(s *GeminiSession) {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	s.ActiveCount++
+	s.LastUsed = time.Now().UnixMilli()
+	p.saveSession(s)
+}
+
+func (p *SessionPool) EndSession(s *GeminiSession) {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	if s.ActiveCount > 0 {
+		s.ActiveCount--
+	}
+	p.saveSession(s)
+}
+
+func (p *SessionPool) RateLimitSession(s *GeminiSession, durationMs int64) {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	s.RateLimitEnd = time.Now().UnixMilli() + durationMs
+	p.saveSession(s)
+}
+
+func (p *SessionPool) saveSession(s *GeminiSession) {
+	metaPath := filepath.Join(p.dir, s.Name, "session.json")
+	data, err := json.MarshalIndent(s, "", "  ")
+	if err != nil {
+		return
+	}
+	_ = os.WriteFile(metaPath, data, 0644)
+}
+
+func (p *SessionPool) CreateSession(name string) (*GeminiSession, error) {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+
+	sessionDir := filepath.Join(p.dir, name)
+	if err := os.MkdirAll(sessionDir, 0755); err != nil {
+		return nil, fmt.Errorf("failed to create session dir: %w", err)
+	}
+
+	s := &GeminiSession{
+		Name:       name,
+		CookieFile: filepath.Join(sessionDir, "cookies.json"),
+		LastUsed:   time.Now().UnixMilli(),
+	}
+
+	p.sessions = append(p.sessions, s)
+	p.saveSession(s)
+
+	return s, nil
+}
+
+func (p *SessionPool) GetSessionNames() []string {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	names := make([]string, len(p.sessions))
+	for i, s := range p.sessions {
+		names[i] = s.Name
+	}
+	return names
+}

internal/providers/geminiweb/provider.go

@@ -0,0 +1,197 @@
+package geminiweb
+
+import (
+	"context"
+	"cursor-api-proxy/internal/apitypes"
+	"cursor-api-proxy/internal/config"
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/go-rod/rod"
+)
+
+type Provider struct {
+	cfg  config.BridgeConfig
+	pool *SessionPool
+}
+
+func NewProvider(cfg config.BridgeConfig) *Provider {
+	return &Provider{cfg: cfg}
+}
+
+func (p *Provider) Name() string {
+	return "gemini-web"
+}
+
+func (p *Provider) Close() error {
+	return nil
+}
+
+func (p *Provider) initPool() error {
+	if p.pool != nil {
+		return nil
+	}
+	pool, err := NewSessionPool(p.cfg.GeminiAccountDir, p.cfg.GeminiMaxSessions)
+	if err != nil {
+		return fmt.Errorf("failed to init session pool: %w", err)
+	}
+	p.pool = pool
+	return nil
+}
+
+func (p *Provider) Generate(ctx context.Context, model string, messages []apitypes.Message, tools []apitypes.Tool, cb func(apitypes.StreamChunk)) error {
+	if err := p.initPool(); err != nil {
+		return err
+	}
+
+	session := p.pool.GetAvailable()
+	if session == nil {
+		return fmt.Errorf("no available sessions")
+	}
+
+	p.pool.StartSession(session)
+	defer p.pool.EndSession(session)
+
+	browser, err := NewBrowser(p.cfg.GeminiBrowserVisible)
+	if err != nil {
+		return fmt.Errorf("failed to create browser: %w", err)
+	}
+	defer browser.Close()
+
+	page, err := browser.NewPage()
+	if err != nil {
+		return fmt.Errorf("failed to create page: %w", err)
+	}
+
+	if session.CookieFile != "" {
+		cookies, err := LoadCookiesFromFile(session.CookieFile)
+		if err == nil {
+			if err := SetCookiesOnPage(page, cookies); err != nil {
+				return fmt.Errorf("failed to set cookies: %w", err)
+			}
+		}
+	}
+
+	if err := NavigateToGemini(page); err != nil {
+		return fmt.Errorf("failed to navigate: %w", err)
+	}
+
+	time.Sleep(2 * time.Second)
+
+	if !IsLoggedIn(page) {
+		return fmt.Errorf("session not logged in, please run gemini-login first")
+	}
+
+	if err := SelectModel(page, model); err != nil {
+		return fmt.Errorf("failed to select model: %w", err)
+	}
+
+	time.Sleep(500 * time.Millisecond)
+
+	prompt := buildPromptFromMessages(messages)
+	if err := SendPrompt(page, prompt); err != nil {
+		return fmt.Errorf("failed to send prompt: %w", err)
+	}
+
+	return WaitForResponse(page,
+		func(text string) {
+			cb(apitypes.StreamChunk{Type: apitypes.ChunkText, Text: text})
+		},
+		func(thinking string) {
+			cb(apitypes.StreamChunk{Type: apitypes.ChunkThinking, Thinking: thinking})
+		},
+		func() {
+			cb(apitypes.StreamChunk{Type: apitypes.ChunkDone, Done: true})
+		},
+	)
+}
+
+func buildPromptFromMessages(messages []apitypes.Message) string {
+	var prompt string
+	for _, m := range messages {
+		switch m.Role {
+		case "system":
+			prompt += "System: " + m.Content + "\n\n"
+		case "user":
+			prompt += m.Content + "\n\n"
+		case "assistant":
+			prompt += "Assistant: " + m.Content + "\n\n"
+		}
+	}
+	return prompt
+}
+
+func RunLogin(cfg config.BridgeConfig, sessionName string) error {
+	if sessionName == "" {
+		sessionName = fmt.Sprintf("session-%d", time.Now().Unix())
+	}
+
+	pool, err := NewSessionPool(cfg.GeminiAccountDir, cfg.GeminiMaxSessions)
+	if err != nil {
+		return fmt.Errorf("failed to init pool: %w", err)
+	}
+
+	session, err := pool.CreateSession(sessionName)
+	if err != nil {
+		return fmt.Errorf("failed to create session: %w", err)
+	}
+
+	fmt.Printf("Starting browser for login. Session: %s\n", sessionName)
+	fmt.Println("Please log in to your Gemini account in the browser window.")
+	fmt.Println("Press Ctrl+C when you have completed the login...")
+
+	browser, err := NewBrowser(true)
+	if err != nil {
+		return fmt.Errorf("failed to create browser: %w", err)
+	}
+	defer browser.Close()
+
+	page, err := browser.NewPage()
+	if err != nil {
+		return fmt.Errorf("failed to create page: %w", err)
+	}
+
+	if err := NavigateToGemini(page); err != nil {
+		return fmt.Errorf("failed to navigate: %w", err)
+	}
+
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
+
+	<-sigChan
+
+	cookies, err := GetPageCookies(page)
+	if err != nil {
+		return fmt.Errorf("failed to get cookies: %w", err)
+	}
+
+	if err := SaveCookiesToFile(cookies, session.CookieFile); err != nil {
+		return fmt.Errorf("failed to save cookies: %w", err)
+	}
+
+	fmt.Printf("Session saved successfully: %s\n", sessionName)
+	return nil
+}
+
+func GetPageCookies(page *rod.Page) ([]Cookie, error) {
+	cookies, err := page.Cookies([]string{})
+	if err != nil {
+		return nil, fmt.Errorf("failed to get cookies: %w", err)
+	}
+
+	var result []Cookie
+	for _, c := range cookies {
+		result = append(result, Cookie{
+			Name:     c.Name,
+			Value:    c.Value,
+			Domain:   c.Domain,
+			Path:     c.Path,
+			HTTPOnly: c.HTTPOnly,
+			Secure:   c.Secure,
+		})
+	}
+	return result, nil
+}