feat(emby): support multiple connection lines for remote mount (#9)

Add account-level multi-line configuration for emby_remote mounts.
Lines are stored in strm_accounts.config as a urls JSON array with
backward compatibility for the legacy single url field. The backend
automatically fails over to the next line on connection errors and
persists the working active_line index.

Frontend: multi-line editor on Emby mount page and STRM account dialog
with add/remove/reorder, line names, and URL validation.

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: truewhile <truewhile@users.noreply.github.com>

internal/handler/strm.go

@@ -8,6 +8,7 @@ import (
 	"net/url"
 	"strconv"
 	"strings"
+	"time"
 
 	"github.com/gin-gonic/gin"
 
@@ -30,6 +31,9 @@ type strmAccountView struct {
 	ProviderLabel string `json:"provider_label"`
 	// ProxyPlay 仅远程 Emby 挂载账号返回：播放流量是否经过 MMTL 代理（编辑回显用）。
 	ProxyPlay *bool `json:"proxy_play,omitempty"`
+	// EmbyLines 仅远程 Emby 挂载账号返回：多线路配置（不含凭据）。
+	EmbyLines      []service.EmbyRemoteLine `json:"emby_lines,omitempty"`
+	EmbyActiveLine int                      `json:"emby_active_line,omitempty"`
 }
 
 func strmAccountViews(svc *service.Container, accounts []model.StrmAccount) []strmAccountView {
@@ -45,6 +49,10 @@ func strmAccountViews(svc *service.Container, accounts []model.StrmAccount) []st
 			if proxyPlay, err := svc.EmbyRemote.ProxyPlayOf(&a); err == nil {
 				view.ProxyPlay = &proxyPlay
 			}
+			if lines, activeLine, err := svc.EmbyRemote.LinesOf(&a); err == nil {
+				view.EmbyLines = lines
+				view.EmbyActiveLine = activeLine
+			}
 		}
 		out = append(out, view)
 	}
@@ -117,13 +125,33 @@ func deleteStrmAccountHandler(svc *service.Container) gin.HandlerFunc {
 
 func testStrmAccountHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		acct := svc.Strm.TestStrmAccount(c.Request.Context(), c.Param("id"))
+		id := c.Param("id")
-		if acct == nil {
+		acct, err := svc.Repo.StrmAccount.FindByID(c.Request.Context(), id)
+		if err != nil || acct == nil {
 			c.JSON(http.StatusNotFound, gin.H{"error": "网盘账号不存在"})
 			return
 		}
-		views := strmAccountViews(svc, []model.StrmAccount{*acct})
+		now := time.Now()
-		c.JSON(http.StatusOK, views[0])
+		acct.LastTestAt = &now
+		if acct.Provider == model.StrmProviderEmbyRemote && svc.EmbyRemote != nil {
+			if err := svc.EmbyRemote.TestConnection(c.Request.Context(), acct); err != nil {
+				acct.LastTestResult = err.Error()
+				acct.LastTestOK = false
+			} else {
+				acct.LastTestResult = "ok"
+				acct.LastTestOK = true
+			}
+		} else {
+			acct = svc.Strm.TestStrmAccount(c.Request.Context(), id)
+			if acct == nil {
+				c.JSON(http.StatusNotFound, gin.H{"error": "网盘账号不存在"})
+				return
+			}
+			c.JSON(http.StatusOK, strmAccountViews(svc, []model.StrmAccount{*acct})[0])
+			return
+		}
+		_ = svc.Repo.StrmAccount.Update(c.Request.Context(), acct)
+		c.JSON(http.StatusOK, strmAccountViews(svc, []model.StrmAccount{*acct})[0])
 	}
 }
 

internal/service/emby_remote.go

@@ -56,7 +56,9 @@ func (t *embyRemoteTransport) RoundTrip(req *http.Request) (*http.Response, erro
 
 // EmbyRemoteConfig 是一个远程 Emby 账号的解密配置。
 type EmbyRemoteConfig struct {
-	BaseURL      string // http://host:8096（无需 /emby 后缀）
+	BaseURL      string           // 当前生效线路地址（http://host:8096，无需 /emby 后缀）
+	Lines        []EmbyRemoteLine // 全部线路，按优先级排列
+	ActiveLine   int              // 当前生效线路下标
 	Username     string
 	Password     string
 	Token        string // api_key（手动填写或自动认证获得）
@@ -322,8 +324,14 @@ func (r *EmbyRemoteService) configOf(acct *model.StrmAccount) (*EmbyRemoteConfig
 			return nil, fmt.Errorf("decode emby account config: %w", err)
 		}
 	}
+	lines, activeLine, err := ParseEmbyRemoteLines(raw)
+	if err != nil {
+		return nil, err
+	}
 	cfg := &EmbyRemoteConfig{
-		BaseURL:      strings.TrimRight(strings.TrimSpace(raw["url"]), "/"),
+		BaseURL:      lines[activeLine].URL,
+		Lines:        lines,
+		ActiveLine:   activeLine,
 		Username:     strings.TrimSpace(raw["username"]),
 		Password:     r.crypto.Decrypt(raw["password"]),
 		Token:        firstNonEmptyStr(r.crypto.Decrypt(raw["api_key"]), r.crypto.Decrypt(raw["token"])),
@@ -333,9 +341,6 @@ func (r *EmbyRemoteService) configOf(acct *model.StrmAccount) (*EmbyRemoteConfig
 	if cfg.BaseURL == "" {
 		return nil, errors.New("缺少 Emby 地址")
 	}
-	if !strings.HasPrefix(cfg.BaseURL, "http://") && !strings.HasPrefix(cfg.BaseURL, "https://") {
-		return nil, errors.New("Emby 地址必须以 http:// 或 https:// 开头")
-	}
 	return cfg, nil
 }
 
@@ -366,6 +371,29 @@ func (r *EmbyRemoteService) ensureToken(ctx context.Context, acct *model.StrmAcc
 	if strings.TrimSpace(cfg.Username) == "" || strings.TrimSpace(cfg.Password) == "" {
 		return errors.New("缺少 Emby 凭据：请填写 api_key 或 用户名/密码")
 	}
+	var lastErr error
+	for _, lineIdx := range r.lineOrder(cfg) {
+		lineCfg := r.withLine(cfg, lineIdx)
+		err := r.ensureTokenOnLine(ctx, acct, lineCfg)
+		if err == nil {
+			cfg.Token = lineCfg.Token
+			cfg.RemoteUserID = lineCfg.RemoteUserID
+			cfg.BaseURL = lineCfg.BaseURL
+			r.adoptWorkingLine(ctx, acct, cfg, lineIdx)
+			return r.persistToken(ctx, acct, cfg)
+		}
+		lastErr = err
+		if !isEmbyLineFailoverError(err) {
+			return err
+		}
+	}
+	if lastErr != nil {
+		return lastErr
+	}
+	return errors.New("Emby 线路认证失败")
+}
+
+func (r *EmbyRemoteService) ensureTokenOnLine(ctx context.Context, acct *model.StrmAccount, cfg *EmbyRemoteConfig) error {
 	body, _ := json.Marshal(map[string]string{"Username": cfg.Username, "Pw": cfg.Password})
 	endpoint := r.embyBase(cfg) + "/Users/AuthenticateByName"
 	req, err := http.NewRequestWithContext(ctx, http.MethodPost, endpoint, strings.NewReader(string(body)))
@@ -399,7 +427,7 @@ func (r *EmbyRemoteService) ensureToken(ctx context.Context, acct *model.StrmAcc
 	if login.User.Id != "" {
 		cfg.RemoteUserID = login.User.Id
 	}
-	return r.persistToken(ctx, acct, cfg)
+	return nil
 }
 
 // persistToken 把认证得到的 token / user id 加密写回账号配置（下次请求免登录）。
@@ -425,12 +453,36 @@ func (r *EmbyRemoteService) persistToken(ctx context.Context, acct *model.StrmAc
 }
 
 // doGet 向远程 Emby 发起带 api_key 的 GET，把响应 JSON 解码到 out。
-// 401 时自动重认证一次再重试（凭据过期场景）。
+// 401 时自动重认证一次再重试（凭据过期场景）。连接失败时按线路优先级自动切换。
 func (r *EmbyRemoteService) doGet(ctx context.Context, acct *model.StrmAccount, cfg *EmbyRemoteConfig, path string, q url.Values, out any) error {
-	for attempt := 0; attempt < 2; attempt++ {
+	var lastErr error
-		if err := r.ensureToken(ctx, acct, cfg); err != nil {
+	for _, lineIdx := range r.lineOrder(cfg) {
+		lineCfg := r.withLine(cfg, lineIdx)
+		err := r.doGetOnLine(ctx, acct, cfg, lineCfg, path, q, out)
+		if err == nil {
+			r.adoptWorkingLine(ctx, acct, cfg, lineIdx)
+			return nil
+		}
+		lastErr = err
+		if !isEmbyLineFailoverError(err) {
 			return err
 		}
+	}
+	if lastErr != nil {
+		return lastErr
+	}
+	return errors.New("远程 Emby 请求失败")
+}
+
+func (r *EmbyRemoteService) doGetOnLine(ctx context.Context, acct *model.StrmAccount, master *EmbyRemoteConfig, cfg *EmbyRemoteConfig, path string, q url.Values, out any) error {
+	for attempt := 0; attempt < 2; attempt++ {
+		if strings.TrimSpace(cfg.Token) == "" {
+			if err := r.ensureTokenOnLine(ctx, acct, cfg); err != nil {
+				return err
+			}
+			master.Token = cfg.Token
+			master.RemoteUserID = cfg.RemoteUserID
+		}
 		endpoint := r.embyBase(cfg) + path
 		if q != nil {
 			endpoint += "?" + q.Encode()
@@ -452,8 +504,8 @@ func (r *EmbyRemoteService) doGet(ctx context.Context, acct *model.StrmAccount,
 			return readErr
 		}
 		if resp.StatusCode == http.StatusUnauthorized && attempt == 0 {
-			// token 失效：清空后重认证重试一次。
 			cfg.Token = ""
+			master.Token = ""
 			if acct != nil {
 				raw := map[string]string{}
 				_ = json.Unmarshal([]byte(acct.Config), &raw)
@@ -783,9 +835,39 @@ func (r *EmbyRemoteService) ProxyVideoStream(ctx context.Context, w http.Respons
 	if err != nil {
 		return err
 	}
-	if err := r.ensureToken(ctx, acct, cfg); err != nil {
+	var lastErr error
-		return err
+	for _, lineIdx := range r.lineOrder(cfg) {
+		lineCfg := r.withLine(cfg, lineIdx)
+		lineCfg.Token = cfg.Token
+		lineCfg.RemoteUserID = cfg.RemoteUserID
+		if strings.TrimSpace(lineCfg.Token) == "" {
+			if err := r.ensureToken(ctx, acct, lineCfg); err != nil {
+				lastErr = err
+				if isEmbyLineFailoverError(err) {
+					continue
+				}
+				return err
+			}
+			cfg.Token = lineCfg.Token
+			cfg.RemoteUserID = lineCfg.RemoteUserID
+		}
+		err := r.proxyVideoStreamOnLine(ctx, w, req, lineCfg, remoteID)
+		if err == nil {
+			r.adoptWorkingLine(ctx, acct, cfg, lineIdx)
+			return nil
+		}
+		lastErr = err
+		if !isEmbyLineFailoverError(err) {
+			return err
+		}
 	}
+	if lastErr != nil {
+		return lastErr
+	}
+	return errors.New("远程 Emby 视频流请求失败")
+}
+
+func (r *EmbyRemoteService) proxyVideoStreamOnLine(ctx context.Context, w http.ResponseWriter, req *http.Request, cfg *EmbyRemoteConfig, remoteID string) error {
 	endpoint := r.embyBase(cfg) + "/Videos/" + url.PathEscape(remoteID) + "/stream"
 	q := url.Values{}
 	if mediaSourceID := strings.TrimSpace(req.URL.Query().Get("MediaSourceId")); mediaSourceID != "" {
@@ -837,9 +919,39 @@ func (r *EmbyRemoteService) ProxySubtitle(ctx context.Context, w http.ResponseWr
 	if err != nil {
 		return err
 	}
-	if err := r.ensureToken(ctx, acct, cfg); err != nil {
+	var lastErr error
-		return err
+	for _, lineIdx := range r.lineOrder(cfg) {
+		lineCfg := r.withLine(cfg, lineIdx)
+		lineCfg.Token = cfg.Token
+		lineCfg.RemoteUserID = cfg.RemoteUserID
+		if strings.TrimSpace(lineCfg.Token) == "" {
+			if err := r.ensureToken(ctx, acct, lineCfg); err != nil {
+				lastErr = err
+				if isEmbyLineFailoverError(err) {
+					continue
+				}
+				return err
+			}
+			cfg.Token = lineCfg.Token
+			cfg.RemoteUserID = lineCfg.RemoteUserID
+		}
+		err := r.proxySubtitleOnLine(ctx, w, lineCfg, remoteID, index)
+		if err == nil {
+			r.adoptWorkingLine(ctx, acct, cfg, lineIdx)
+			return nil
+		}
+		lastErr = err
+		if !isEmbyLineFailoverError(err) {
+			return err
+		}
 	}
+	if lastErr != nil {
+		return lastErr
+	}
+	return errors.New("远程 Emby 字幕流请求失败")
+}
+
+func (r *EmbyRemoteService) proxySubtitleOnLine(ctx context.Context, w http.ResponseWriter, cfg *EmbyRemoteConfig, remoteID, index string) error {
 	endpoint := r.embyBase(cfg) + "/Videos/" + url.PathEscape(remoteID) + "/Subtitles/" + url.PathEscape(index) + "/Stream"
 	endpoint += "?api_key=" + url.QueryEscape(cfg.Token)
 	upstream, err := http.NewRequestWithContext(ctx, http.MethodGet, endpoint, nil)
@@ -902,6 +1014,39 @@ func (r *EmbyRemoteService) ProxySetFavorite(ctx context.Context, acct *model.St
 }
 
 func (r *EmbyRemoteService) doMutate(ctx context.Context, acct *model.StrmAccount, cfg *EmbyRemoteConfig, method, path string) error {
+	var lastErr error
+	for _, lineIdx := range r.lineOrder(cfg) {
+		lineCfg := r.withLine(cfg, lineIdx)
+		lineCfg.Token = cfg.Token
+		lineCfg.RemoteUserID = cfg.RemoteUserID
+		if strings.TrimSpace(lineCfg.Token) == "" {
+			if err := r.ensureToken(ctx, acct, lineCfg); err != nil {
+				lastErr = err
+				if isEmbyLineFailoverError(err) {
+					continue
+				}
+				return err
+			}
+			cfg.Token = lineCfg.Token
+			cfg.RemoteUserID = lineCfg.RemoteUserID
+		}
+		err := r.doMutateOnLine(ctx, lineCfg, method, path)
+		if err == nil {
+			r.adoptWorkingLine(ctx, acct, cfg, lineIdx)
+			return nil
+		}
+		lastErr = err
+		if !isEmbyLineFailoverError(err) {
+			return err
+		}
+	}
+	if lastErr != nil {
+		return lastErr
+	}
+	return errors.New("远程 Emby 状态同步失败")
+}
+
+func (r *EmbyRemoteService) doMutateOnLine(ctx context.Context, cfg *EmbyRemoteConfig, method, path string) error {
 	endpoint := r.embyBase(cfg) + path + "?api_key=" + url.QueryEscape(cfg.Token)
 	req, err := http.NewRequestWithContext(ctx, method, endpoint, nil)
 	if err != nil {

internal/service/emby_remote_lines.go

@@ -0,0 +1,185 @@
+package service
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/url"
+	"strconv"
+	"strings"
+
+	"github.com/ShukeBta/MMTL/internal/model"
+)
+
+// EmbyRemoteLine 表示同一 Emby 服务器的一条接入线路（内网/外网/CDN 等）。
+type EmbyRemoteLine struct {
+	Name string `json:"name"`
+	URL  string `json:"url"`
+}
+
+func normalizeEmbyRemoteURL(raw string) string {
+	u := strings.TrimRight(strings.TrimSpace(raw), "/")
+	if u == "" {
+		return ""
+	}
+	if !strings.HasPrefix(u, "http://") && !strings.HasPrefix(u, "https://") {
+		return ""
+	}
+	return u
+}
+
+// NormalizeEmbyRemoteLines 去掉空 URL，并规范每条线路地址。
+func NormalizeEmbyRemoteLines(lines []EmbyRemoteLine) []EmbyRemoteLine {
+	out := make([]EmbyRemoteLine, 0, len(lines))
+	for _, line := range lines {
+		u := normalizeEmbyRemoteURL(line.URL)
+		if u == "" {
+			continue
+		}
+		out = append(out, EmbyRemoteLine{
+			Name: strings.TrimSpace(line.Name),
+			URL:  u,
+		})
+	}
+	return out
+}
+
+// ParseEmbyRemoteLines 从账号配置 JSON 中解析线路列表。
+// 兼容旧版单字段 url；urls 为 JSON 数组字符串。
+func ParseEmbyRemoteLines(raw map[string]string) ([]EmbyRemoteLine, int, error) {
+	active := 0
+	if v := strings.TrimSpace(raw["active_line"]); v != "" {
+		if n, err := strconv.Atoi(v); err == nil && n >= 0 {
+			active = n
+		}
+	}
+	if urlsJSON := strings.TrimSpace(raw["urls"]); urlsJSON != "" {
+		var lines []EmbyRemoteLine
+		if err := json.Unmarshal([]byte(urlsJSON), &lines); err != nil {
+			return nil, 0, fmt.Errorf("解析 Emby 线路列表: %w", err)
+		}
+		lines = NormalizeEmbyRemoteLines(lines)
+		if len(lines) == 0 {
+			return nil, 0, errors.New("至少配置一条 Emby 线路")
+		}
+		if active >= len(lines) {
+			active = 0
+		}
+		return lines, active, nil
+	}
+	if u := normalizeEmbyRemoteURL(raw["url"]); u != "" {
+		return []EmbyRemoteLine{{URL: u}}, 0, nil
+	}
+	return nil, 0, errors.New("缺少 Emby 地址")
+}
+
+// EncodeEmbyRemoteLines 序列化线路列表，并返回兼容旧版的 primary URL。
+func EncodeEmbyRemoteLines(lines []EmbyRemoteLine) (urlsJSON string, primaryURL string, err error) {
+	lines = NormalizeEmbyRemoteLines(lines)
+	if len(lines) == 0 {
+		return "", "", errors.New("至少配置一条 Emby 线路")
+	}
+	data, err := json.Marshal(lines)
+	if err != nil {
+		return "", "", err
+	}
+	return string(data), lines[0].URL, nil
+}
+
+func (r *EmbyRemoteService) withLine(cfg *EmbyRemoteConfig, index int) *EmbyRemoteConfig {
+	if cfg == nil {
+		return nil
+	}
+	copy := *cfg
+	if index >= 0 && index < len(cfg.Lines) {
+		copy.BaseURL = normalizeEmbyRemoteURL(cfg.Lines[index].URL)
+		copy.ActiveLine = index
+	}
+	return &copy
+}
+
+func (r *EmbyRemoteService) lineOrder(cfg *EmbyRemoteConfig) []int {
+	if cfg == nil || len(cfg.Lines) == 0 {
+		return []int{0}
+	}
+	if len(cfg.Lines) == 1 {
+		return []int{0}
+	}
+	active := cfg.ActiveLine
+	if active < 0 || active >= len(cfg.Lines) {
+		active = 0
+	}
+	order := []int{active}
+	for i := range cfg.Lines {
+		if i != active {
+			order = append(order, i)
+		}
+	}
+	return order
+}
+
+func isEmbyLineFailoverError(err error) bool {
+	if err == nil {
+		return false
+	}
+	msg := strings.ToLower(err.Error())
+	if strings.Contains(msg, "登录失败") ||
+		strings.Contains(msg, "未返回 accesstoken") ||
+		strings.Contains(msg, "缺少 emby 凭据") ||
+		strings.Contains(msg, "认证重试失败") {
+		return false
+	}
+	var urlErr *url.Error
+	if errors.As(err, &urlErr) {
+		return true
+	}
+	return strings.Contains(msg, "连接远程 emby") ||
+		strings.Contains(msg, "请求远程 emby 失败") ||
+		strings.Contains(msg, "dial tcp") ||
+		strings.Contains(msg, "connection refused") ||
+		strings.Contains(msg, "no such host") ||
+		strings.Contains(msg, "timeout") ||
+		strings.Contains(msg, "i/o timeout")
+}
+
+func (r *EmbyRemoteService) persistActiveLine(ctx context.Context, acct *model.StrmAccount, cfg *EmbyRemoteConfig, lineIndex int) error {
+	if acct == nil || cfg == nil || lineIndex < 0 || lineIndex >= len(cfg.Lines) {
+		return nil
+	}
+	raw := map[string]string{}
+	if strings.TrimSpace(acct.Config) != "" {
+		_ = json.Unmarshal([]byte(acct.Config), &raw)
+	}
+	raw["active_line"] = strconv.Itoa(lineIndex)
+	raw["url"] = cfg.Lines[lineIndex].URL
+	data, err := json.Marshal(raw)
+	if err != nil {
+		return err
+	}
+	acct.Config = string(data)
+	cfg.ActiveLine = lineIndex
+	cfg.BaseURL = normalizeEmbyRemoteURL(cfg.Lines[lineIndex].URL)
+	return r.repo.StrmAccount.Update(ctx, acct)
+}
+
+func (r *EmbyRemoteService) adoptWorkingLine(ctx context.Context, acct *model.StrmAccount, cfg *EmbyRemoteConfig, lineIndex int) {
+	if cfg == nil || lineIndex < 0 || lineIndex >= len(cfg.Lines) {
+		return
+	}
+	if lineIndex == cfg.ActiveLine {
+		return
+	}
+	_ = r.persistActiveLine(ctx, acct, cfg, lineIndex)
+}
+
+// LinesOf 返回账号已配置的线路（供管理界面回显，不含敏感信息）。
+func (r *EmbyRemoteService) LinesOf(acct *model.StrmAccount) ([]EmbyRemoteLine, int, error) {
+	raw := map[string]string{}
+	if acct != nil && strings.TrimSpace(acct.Config) != "" {
+		if err := json.Unmarshal([]byte(acct.Config), &raw); err != nil {
+			return nil, 0, err
+		}
+	}
+	return ParseEmbyRemoteLines(raw)
+}

internal/service/emby_remote_lines_test.go

@@ -0,0 +1,66 @@
+package service
+
+import (
+	"testing"
+)
+
+func TestParseEmbyRemoteLinesLegacyURL(t *testing.T) {
+	lines, active, err := ParseEmbyRemoteLines(map[string]string{
+		"url": "http://192.168.1.10:8096/",
+	})
+	if err != nil {
+		t.Fatalf("ParseEmbyRemoteLines() error = %v", err)
+	}
+	if active != 0 || len(lines) != 1 || lines[0].URL != "http://192.168.1.10:8096" {
+		t.Fatalf("unexpected lines: %#v active=%d", lines, active)
+	}
+}
+
+func TestParseEmbyRemoteLinesMulti(t *testing.T) {
+	lines, active, err := ParseEmbyRemoteLines(map[string]string{
+		"urls":        `[{"name":"内网","url":"http://10.0.0.8:8096"},{"name":"外网","url":"https://emby.example.com"}]`,
+		"active_line": "1",
+	})
+	if err != nil {
+		t.Fatalf("ParseEmbyRemoteLines() error = %v", err)
+	}
+	if active != 1 || len(lines) != 2 {
+		t.Fatalf("unexpected lines: %#v active=%d", lines, active)
+	}
+	if lines[1].Name != "外网" || lines[1].URL != "https://emby.example.com" {
+		t.Fatalf("unexpected second line: %#v", lines[1])
+	}
+}
+
+func TestEncodeEmbyRemoteLines(t *testing.T) {
+	jsonText, primary, err := EncodeEmbyRemoteLines([]EmbyRemoteLine{
+		{Name: "内网", URL: "http://10.0.0.8:8096/"},
+		{Name: "外网", URL: "https://emby.example.com"},
+	})
+	if err != nil {
+		t.Fatalf("EncodeEmbyRemoteLines() error = %v", err)
+	}
+	if primary != "http://10.0.0.8:8096" {
+		t.Fatalf("primary = %q", primary)
+	}
+	lines, active, err := ParseEmbyRemoteLines(map[string]string{"urls": jsonText})
+	if err != nil || active != 0 || len(lines) != 2 {
+		t.Fatalf("roundtrip failed: %#v active=%d err=%v", lines, active, err)
+	}
+}
+
+func TestEmbyRemoteServiceLineOrder(t *testing.T) {
+	svc := &EmbyRemoteService{}
+	cfg := &EmbyRemoteConfig{
+		Lines: []EmbyRemoteLine{
+			{URL: "http://a"},
+			{URL: "http://b"},
+			{URL: "http://c"},
+		},
+		ActiveLine: 1,
+	}
+	order := svc.lineOrder(cfg)
+	if len(order) != 3 || order[0] != 1 || order[1] != 0 || order[2] != 2 {
+		t.Fatalf("unexpected order: %#v", order)
+	}
+}

internal/service/strm_service.go

@@ -273,8 +273,9 @@ func HasStrmAccountCredential(acct *model.StrmAccount) bool {
 	case model.StrmProviderOpenList:
 		return strings.Contains(acct.Config, `"token"`) || strings.Contains(acct.Config, `"password"`)
 	case model.StrmProviderEmbyRemote:
-		// 远程 Emby：接入地址 + (自动认证凭据 或 手动 api_key) 即视为已配置。
+		// 远程 Emby：接入线路 + (自动认证凭据 或 手动 api_key) 即视为已配置。
-		return strings.Contains(acct.Config, `"url"`) &&
+		hasURL := strings.Contains(acct.Config, `"url"`) || strings.Contains(acct.Config, `"urls"`)
+		return hasURL &&
 			(strings.Contains(acct.Config, `"token"`) || strings.Contains(acct.Config, `"api_key"`) ||
 				(strings.Contains(acct.Config, `"username"`) && strings.Contains(acct.Config, `"password"`)))
 	default:

web/src/pages/EmbyMountPage.tsx

@@ -25,6 +25,12 @@ import type { StrmAccount } from '../types/strm'
 import type { EmbyMount, RemoteEmbyView } from '../types/emby'
 import { apiErrorMessage } from './StrmManagePage'
 import { confirmAction } from '../components/confirmAction'
+import {
+  defaultEmbyRemoteLines,
+  encodeEmbyRemoteConfigLines,
+  normalizeEmbyRemoteLines,
+  type EmbyRemoteLine,
+} from '../utils/embyRemoteLines'
 
 const inputCls = 'input-base w-full'
 
@@ -40,21 +46,50 @@ function AccountDialog({
   onSaved: () => void
 }) {
   const [name, setName] = useState(existing?.name ?? '')
-  const [url, setUrl] = useState('')
+  const [lines, setLines] = useState<EmbyRemoteLine[]>(() => defaultEmbyRemoteLines(existing?.emby_lines))
   const [username, setUsername] = useState('')
   const [password, setPassword] = useState('')
   const [token, setToken] = useState('')
   const [enabled, setEnabled] = useState(existing?.enabled ?? true)
   const [saving, setSaving] = useState(false)
 
-  const canSave = () => url !== '' && (token !== '' || password !== '')
+  const normalizedLines = normalizeEmbyRemoteLines(lines)
+  const canSave = () => normalizedLines.length > 0 && (token !== '' || password !== '' || !!existing?.has_credential)
+
+  const updateLine = (index: number, patch: Partial<EmbyRemoteLine>) => {
+    setLines((prev) => prev.map((line, i) => (i === index ? { ...line, ...patch } : line)))
+  }
+
+  const addLine = () => {
+    setLines((prev) => [...prev, { name: `线路 ${prev.length + 1}`, url: '' }])
+  }
+
+  const removeLine = (index: number) => {
+    setLines((prev) => (prev.length <= 1 ? prev : prev.filter((_, i) => i !== index)))
+  }
+
+  const moveLine = (index: number, direction: 'up' | 'down') => {
+    setLines((prev) => {
+      const target = direction === 'up' ? index - 1 : index + 1
+      if (target < 0 || target >= prev.length) return prev
+      const next = [...prev]
+      const [moved] = next.splice(index, 1)
+      next.splice(target, 0, moved)
+      return next
+    })
+  }
 
   const submit = async (event: React.FormEvent) => {
     event.preventDefault()
+    const readyLines = normalizeEmbyRemoteLines(lines)
+    if (readyLines.length === 0) {
+      toast.error('请至少填写一条有效的 Emby 线路地址')
+      return
+    }
     setSaving(true)
     try {
       const config: Record<string, string> = {
-        ...(url ? { url } : {}),
+        ...encodeEmbyRemoteConfigLines(readyLines),
         ...(username ? { username } : {}),
         ...(password ? { password } : {}),
         ...(token ? { token } : {}),
@@ -69,7 +104,7 @@ function AccountDialog({
         toast.success('Emby 账号已更新')
       } else {
         if (!canSave()) {
-          toast.error('请填写 Emby 地址与密码（或 API Key）')
+          toast.error('请填写线路地址与密码（或 API Key）')
           return
         }
         await strmAPI.createAccount({ name: name || 'Emby 服务器', provider: 'emby_remote', config })
@@ -85,11 +120,11 @@ function AccountDialog({
 
   return (
     <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40 p-4" onClick={onClose}>
-      <div className="w-full max-w-md rounded-3xl border border-sand-200 bg-white p-6 shadow-2xl" onClick={(e) => e.stopPropagation()}>
+      <div className="max-h-[90vh] w-full max-w-lg overflow-y-auto rounded-3xl border border-sand-200 bg-white p-6 shadow-2xl" onClick={(e) => e.stopPropagation()}>
         <div className="mb-5 flex items-center justify-between">
           <div>
             <h3 className="font-display text-xl font-bold text-ink-600">{existing ? '编辑 Emby 账号' : '添加 Emby 账号'}</h3>
-            <p className="text-xs text-sand-500">连接远程 Emby 服务器（Jellyfin 暂不支持）</p>
+            <p className="text-xs text-sand-500">可配置内网、外网等多条线路，连接失败时按顺序自动切换</p>
           </div>
           <button onClick={onClose} className="rounded-lg p-1.5 text-sand-500 hover:bg-gray-100">
             <X size={18} />
@@ -100,16 +135,48 @@ function AccountDialog({
             <span className="mb-1 block font-semibold text-ink-600">账号名称</span>
             <input className={inputCls} value={name} placeholder="例如：家庭影院" onChange={(e) => setName(e.target.value)} />
           </label>
-          <label className="block text-sm">
+          <div className="space-y-3">
-            <span className="mb-1 block font-semibold text-ink-600">Emby 服务地址</span>
+            <div className="flex items-center justify-between gap-2">
-            <input
+              <span className="text-sm font-semibold text-ink-600">接入线路</span>
-              className={inputCls}
+              <button type="button" onClick={addLine} className="inline-flex items-center gap-1 rounded-lg border border-gray-200 px-2.5 py-1 text-xs font-semibold text-ink-100 hover:bg-gray-50">
-              value={url}
+                <Plus size={12} />
-              placeholder="http://192.168.1.10:8096"
+                添加线路
-              onChange={(e) => setUrl(e.target.value)}
+              </button>
-              disabled={!!existing}
+            </div>
-            />
+            {lines.map((line, index) => (
-          </label>
+              <div key={`line-${index}`} className="space-y-2 rounded-2xl border border-sand-200 bg-gray-50/70 p-3">
+                <div className="flex items-center justify-between gap-2">
+                  <span className="text-xs font-bold uppercase tracking-wide text-sand-500">
+                    线路 {index + 1}
+                    {existing?.emby_active_line === index ? ' · 当前优先' : index === 0 ? ' · 默认优先' : ''}
+                  </span>
+                  <div className="flex items-center gap-1">
+                    <button type="button" onClick={() => moveLine(index, 'up')} disabled={index === 0} className="rounded-lg border border-gray-200 p-1 text-ink-100 hover:bg-white disabled:opacity-30">
+                      <ArrowUp size={12} />
+                    </button>
+                    <button type="button" onClick={() => moveLine(index, 'down')} disabled={index === lines.length - 1} className="rounded-lg border border-gray-200 p-1 text-ink-100 hover:bg-white disabled:opacity-30">
+                      <ArrowDown size={12} />
+                    </button>
+                    <button type="button" onClick={() => removeLine(index)} disabled={lines.length <= 1} className="rounded-lg border border-gray-200 p-1 text-red-500 hover:bg-red-50 disabled:opacity-30">
+                      <Trash2 size={12} />
+                    </button>
+                  </div>
+                </div>
+                <input
+                  className={inputCls}
+                  value={line.name}
+                  placeholder="线路名称，如：内网 / 外网 / IPv6"
+                  onChange={(e) => updateLine(index, { name: e.target.value })}
+                />
+                <input
+                  className={inputCls}
+                  value={line.url}
+                  placeholder="http://192.168.1.10:8096 或 https://emby.example.com"
+                  onChange={(e) => updateLine(index, { url: e.target.value })}
+                />
+              </div>
+            ))}
+          </div>
           <div className="grid grid-cols-1 gap-3 sm:grid-cols-2">
             <label className="block text-sm">
               <span className="mb-1 block font-semibold text-ink-600">用户名</span>
@@ -478,7 +545,7 @@ export function EmbyMountPage() {
             </span>
           </h1>
           <p className="text-sm text-ink-50">
-            添加远程 Emby 服务器后，按需挂载其媒体库到本项目；播放默认直连原 Emby，可对单个媒体库开启本机代理
+            添加远程 Emby 服务器后，按需挂载其媒体库到本项目；可为同一服务器配置多条线路并自动切换
           </p>
         </div>
         <button onClick={() => setAccountDialog('new')} className="neon-button">
@@ -512,6 +579,9 @@ export function EmbyMountPage() {
                     <p className="font-display text-lg font-bold text-ink-600">{acct.name}</p>
                     <p className="text-xs text-sand-500">
                       {acct.has_credential ? '凭据已配置' : '待补全凭据'}
+                      {acct.emby_lines && acct.emby_lines.length > 0
+                        ? ` · ${acct.emby_lines.length} 条线路`
+                        : ''}
                       {acct.last_test_result ? ` · 最近测试：${acct.last_test_ok ? '正常' : acct.last_test_result}` : ''}
                     </p>
                   </div>

web/src/pages/StrmDialogs.tsx

@@ -1,15 +1,19 @@
 import { FormEvent, useEffect, useMemo, useRef, useState } from 'react'
 import toast from 'react-hot-toast'
 import {
+  ArrowDown,
+  ArrowUp,
   ChevronRight,
   Cloud,
   ExternalLink,
   FolderPlus,
   HardDrive,
   Loader2,
+  Plus,
   QrCode,
   RefreshCw,
   Search,
+  Trash2,
   Tv,
   X,
 } from 'lucide-react'
@@ -23,6 +27,12 @@ import type { StrmAccount, StrmSyncPath, StrmSyncPathInput, StrmProvider } from
 import { STRM_PROVIDER_LABELS } from '../types/strm'
 import { apiErrorMessage } from './StrmManagePage'
 import { LocalDirBrowserDialog } from '../components/LocalDirBrowserDialog'
+import {
+  defaultEmbyRemoteLines,
+  encodeEmbyRemoteConfigLines,
+  normalizeEmbyRemoteLines,
+  type EmbyRemoteLine,
+} from '../utils/embyRemoteLines'
 
 // ─── 弹框外壳 ────────────────────────────────────────────────────────────────
 
@@ -106,6 +116,9 @@ export function StrmAccountDialog({
   const [name, setName] = useState(existing?.name ?? '')
   const [enabled, setEnabled] = useState(existing?.enabled ?? true)
   const [url, setUrl] = useState('')
+  const [embyLines, setEmbyLines] = useState<EmbyRemoteLine[]>(() =>
+    defaultEmbyRemoteLines(existing?.provider === 'emby_remote' ? existing?.emby_lines : undefined),
+  )
   const [server, setServer] = useState('')
   const [username, setUsername] = useState('')
   const [password, setPassword] = useState('')
@@ -128,14 +141,16 @@ export function StrmAccountDialog({
           ...(password ? { password } : {}),
           ...(token ? { token } : {}),
         }
-      case 'emby_remote':
+      case 'emby_remote': {
+        const lineConfig = encodeEmbyRemoteConfigLines(embyLines)
         return {
-          ...(url ? { url } : {}),
+          ...lineConfig,
           ...(username ? { username } : {}),
           ...(password ? { password } : {}),
           ...(token ? { token } : {}),
           proxy_play: proxyPlay ? 'true' : 'false',
         }
+      }
       default:
         return {}
     }
@@ -148,7 +163,7 @@ export function StrmAccountDialog({
       case 'openlist':
         return server !== '' && (token !== '' || password !== '')
       case 'emby_remote':
-        return url !== '' && (token !== '' || password !== '')
+        return normalizeEmbyRemoteLines(embyLines).length > 0 && (token !== '' || password !== '')
       default:
         return false
     }
@@ -255,9 +270,92 @@ export function StrmAccountDialog({
         )}
 
         {provider === 'emby_remote' && (
-          <Field label="Emby 服务地址" hint="远程 Emby 服务器地址，如 http://192.168.1.10:8096">
+          <div className="space-y-3">
-            <input className={inputCls} value={url} placeholder="http://host:8096" onChange={(e) => setUrl(e.target.value)} />
+            <div className="flex items-start justify-between gap-2">
-          </Field>
+              <div>
+                <p className="text-sm font-medium text-ink-100">接入线路</p>
+                <p className="text-xs text-sand-500">可配置内网、外网等多条线路，连接失败时按顺序自动切换</p>
+              </div>
+              <button
+                type="button"
+                onClick={() => setEmbyLines((prev) => [...prev, { name: `线路 ${prev.length + 1}`, url: '' }])}
+                className="inline-flex shrink-0 items-center gap-1 rounded-lg border border-gray-200 px-2.5 py-1 text-xs font-semibold text-ink-100 hover:bg-gray-50"
+              >
+                <Plus size={12} />
+                添加线路
+              </button>
+            </div>
+            {embyLines.map((line, index) => (
+              <div key={`emby-line-${index}`} className="space-y-2 rounded-2xl border border-sand-200 bg-gray-50/70 p-3">
+                <div className="flex items-center justify-between gap-2">
+                  <span className="text-xs font-bold uppercase tracking-wide text-sand-500">
+                    线路 {index + 1}
+                    {existing?.emby_active_line === index ? ' · 当前优先' : index === 0 ? ' · 默认优先' : ''}
+                  </span>
+                  <div className="flex items-center gap-1">
+                    <button
+                      type="button"
+                      onClick={() => {
+                        setEmbyLines((prev) => {
+                          const target = index - 1
+                          if (target < 0) return prev
+                          const next = [...prev]
+                          const [moved] = next.splice(index, 1)
+                          next.splice(target, 0, moved)
+                          return next
+                        })
+                      }}
+                      disabled={index === 0}
+                      className="rounded-lg border border-gray-200 p-1 text-ink-100 hover:bg-white disabled:opacity-30"
+                    >
+                      <ArrowUp size={12} />
+                    </button>
+                    <button
+                      type="button"
+                      onClick={() => {
+                        setEmbyLines((prev) => {
+                          const target = index + 1
+                          if (target >= prev.length) return prev
+                          const next = [...prev]
+                          const [moved] = next.splice(index, 1)
+                          next.splice(target, 0, moved)
+                          return next
+                        })
+                      }}
+                      disabled={index === embyLines.length - 1}
+                      className="rounded-lg border border-gray-200 p-1 text-ink-100 hover:bg-white disabled:opacity-30"
+                    >
+                      <ArrowDown size={12} />
+                    </button>
+                    <button
+                      type="button"
+                      onClick={() => setEmbyLines((prev) => (prev.length <= 1 ? prev : prev.filter((_, i) => i !== index)))}
+                      disabled={embyLines.length <= 1}
+                      className="rounded-lg border border-gray-200 p-1 text-red-500 hover:bg-red-50 disabled:opacity-30"
+                    >
+                      <Trash2 size={12} />
+                    </button>
+                  </div>
+                </div>
+                <input
+                  className={inputCls}
+                  value={line.name}
+                  placeholder="线路名称，如：内网 / 外网 / IPv6"
+                  onChange={(e) =>
+                    setEmbyLines((prev) => prev.map((item, i) => (i === index ? { ...item, name: e.target.value } : item)))
+                  }
+                />
+                <input
+                  className={inputCls}
+                  value={line.url}
+                  placeholder="http://192.168.1.10:8096 或 https://emby.example.com"
+                  onChange={(e) =>
+                    setEmbyLines((prev) => prev.map((item, i) => (i === index ? { ...item, url: e.target.value } : item)))
+                  }
+                />
+              </div>
+            ))}
+          </div>
         )}
 
         {(provider === 'clouddrive2' || provider === 'emby_remote') && (

web/src/types/strm.ts

@@ -9,6 +9,11 @@ export const STRM_PROVIDER_LABELS: Record<StrmProvider, string> = {
   emby_remote: 'Emby 远程挂载',
 }
 
+export type EmbyRemoteLine = {
+  name: string
+  url: string
+}
+
 export interface StrmAccount {
   id: string
   name: string
@@ -23,6 +28,10 @@ export interface StrmAccount {
   provider_label: string
   /** 仅远程 Emby 挂载账号返回：播放流量是否经过 MMTL 代理 */
   proxy_play?: boolean
+  /** 仅远程 Emby 挂载账号返回：多线路配置 */
+  emby_lines?: EmbyRemoteLine[]
+  /** 当前优先使用的线路下标 */
+  emby_active_line?: number
 }
 
 export interface StrmAccountInput {

web/src/utils/embyRemoteLines.ts

@@ -0,0 +1,31 @@
+export type EmbyRemoteLine = {
+  name: string
+  url: string
+}
+
+export function normalizeEmbyRemoteLines(lines: EmbyRemoteLine[]): EmbyRemoteLine[] {
+  return lines
+    .map((line) => ({
+      name: line.name.trim(),
+      url: line.url.trim().replace(/\/+$/, ''),
+    }))
+    .filter((line) => line.url.startsWith('http://') || line.url.startsWith('https://'))
+}
+
+export function encodeEmbyRemoteConfigLines(lines: EmbyRemoteLine[]): Record<string, string> {
+  const normalized = normalizeEmbyRemoteLines(lines)
+  if (normalized.length === 0) {
+    return {}
+  }
+  return {
+    urls: JSON.stringify(normalized),
+    url: normalized[0].url,
+  }
+}
+
+export function defaultEmbyRemoteLines(existing?: EmbyRemoteLine[]): EmbyRemoteLine[] {
+  if (existing && existing.length > 0) {
+    return existing.map((line) => ({ name: line.name ?? '', url: line.url ?? '' }))
+  }
+  return [{ name: '线路 1', url: '' }]
+}