CaIon
546 lines
15 KiB
Go
546 lines
15 KiB
Go
package controller
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import (
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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"
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"net/http"
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"strings"
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"sync"
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"time"
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"github.com/QuantumNous/new-api/common"
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"github.com/QuantumNous/new-api/logger"
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"github.com/QuantumNous/new-api/dto"
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"github.com/QuantumNous/new-api/model"
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"github.com/QuantumNous/new-api/setting/ratio_setting"
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"github.com/gin-gonic/gin"
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)
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const (
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defaultTimeoutSeconds = 10
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defaultEndpoint = "/api/ratio_config"
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maxConcurrentFetches = 8
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maxRatioConfigBytes = 10 << 20 // 10MB
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floatEpsilon = 1e-9
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)
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func nearlyEqual(a, b float64) bool {
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if a > b {
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return a-b < floatEpsilon
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}
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return b-a < floatEpsilon
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}
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func valuesEqual(a, b interface{}) bool {
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af, aok := a.(float64)
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bf, bok := b.(float64)
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if aok && bok {
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return nearlyEqual(af, bf)
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}
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return a == b
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}
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var ratioTypes = []string{"model_ratio", "completion_ratio", "cache_ratio", "model_price"}
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type upstreamResult struct {
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Name string `json:"name"`
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Data map[string]any `json:"data,omitempty"`
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Err string `json:"err,omitempty"`
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}
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func FetchUpstreamRatios(c *gin.Context) {
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var req dto.UpstreamRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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common.SysError("failed to bind upstream request: " + err.Error())
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c.JSON(http.StatusBadRequest, gin.H{"success": false, "message": "请求参数格式错误"})
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return
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}
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if req.Timeout <= 0 {
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req.Timeout = defaultTimeoutSeconds
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}
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var upstreams []dto.UpstreamDTO
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if len(req.Upstreams) > 0 {
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for _, u := range req.Upstreams {
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if strings.HasPrefix(u.BaseURL, "http") {
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if u.Endpoint == "" {
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u.Endpoint = defaultEndpoint
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}
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u.BaseURL = strings.TrimRight(u.BaseURL, "/")
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upstreams = append(upstreams, u)
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}
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}
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} else if len(req.ChannelIDs) > 0 {
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intIds := make([]int, 0, len(req.ChannelIDs))
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for _, id64 := range req.ChannelIDs {
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intIds = append(intIds, int(id64))
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}
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dbChannels, err := model.GetChannelsByIds(intIds)
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if err != nil {
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logger.LogError(c.Request.Context(), "failed to query channels: "+err.Error())
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c.JSON(http.StatusInternalServerError, gin.H{"success": false, "message": "查询渠道失败"})
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return
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}
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for _, ch := range dbChannels {
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if base := ch.GetBaseURL(); strings.HasPrefix(base, "http") {
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upstreams = append(upstreams, dto.UpstreamDTO{
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ID: ch.Id,
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Name: ch.Name,
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BaseURL: strings.TrimRight(base, "/"),
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Endpoint: "",
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})
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}
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}
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}
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if len(upstreams) == 0 {
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c.JSON(http.StatusOK, gin.H{"success": false, "message": "无有效上游渠道"})
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return
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}
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var wg sync.WaitGroup
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ch := make(chan upstreamResult, len(upstreams))
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sem := make(chan struct{}, maxConcurrentFetches)
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dialer := &net.Dialer{Timeout: 10 * time.Second}
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transport := &http.Transport{MaxIdleConns: 100, IdleConnTimeout: 90 * time.Second, TLSHandshakeTimeout: 10 * time.Second, ExpectContinueTimeout: 1 * time.Second, ResponseHeaderTimeout: 10 * time.Second}
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if common.TLSInsecureSkipVerify {
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transport.TLSClientConfig = common.InsecureTLSConfig
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}
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transport.DialContext = func(ctx context.Context, network, addr string) (net.Conn, error) {
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host, _, err := net.SplitHostPort(addr)
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if err != nil {
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host = addr
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}
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// 对 github.io 优先尝试 IPv4，失败则回退 IPv6
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if strings.HasSuffix(host, "github.io") {
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if conn, err := dialer.DialContext(ctx, "tcp4", addr); err == nil {
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return conn, nil
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}
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return dialer.DialContext(ctx, "tcp6", addr)
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}
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return dialer.DialContext(ctx, network, addr)
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}
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client := &http.Client{Transport: transport}
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for _, chn := range upstreams {
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wg.Add(1)
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go func(chItem dto.UpstreamDTO) {
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defer wg.Done()
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sem <- struct{}{}
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defer func() { <-sem }()
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endpoint := chItem.Endpoint
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var fullURL string
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if strings.HasPrefix(endpoint, "http://") || strings.HasPrefix(endpoint, "https://") {
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fullURL = endpoint
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} else {
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if endpoint == "" {
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endpoint = defaultEndpoint
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} else if !strings.HasPrefix(endpoint, "/") {
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endpoint = "/" + endpoint
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}
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fullURL = chItem.BaseURL + endpoint
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}
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uniqueName := chItem.Name
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if chItem.ID != 0 {
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uniqueName = fmt.Sprintf("%s(%d)", chItem.Name, chItem.ID)
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}
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ctx, cancel := context.WithTimeout(c.Request.Context(), time.Duration(req.Timeout)*time.Second)
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defer cancel()
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httpReq, err := http.NewRequestWithContext(ctx, http.MethodGet, fullURL, nil)
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if err != nil {
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logger.LogWarn(c.Request.Context(), "build request failed: "+err.Error())
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ch <- upstreamResult{Name: uniqueName, Err: err.Error()}
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return
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}
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// 简单重试：最多 3 次，指数退避
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var resp *http.Response
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var lastErr error
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for attempt := 0; attempt < 3; attempt++ {
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resp, lastErr = client.Do(httpReq)
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if lastErr == nil {
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break
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}
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time.Sleep(time.Duration(200*(1<<attempt)) * time.Millisecond)
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}
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if lastErr != nil {
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logger.LogWarn(c.Request.Context(), "http error on "+chItem.Name+": "+lastErr.Error())
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ch <- upstreamResult{Name: uniqueName, Err: lastErr.Error()}
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return
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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logger.LogWarn(c.Request.Context(), "non-200 from "+chItem.Name+": "+resp.Status)
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ch <- upstreamResult{Name: uniqueName, Err: resp.Status}
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return
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}
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// Content-Type 和响应体大小校验
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if ct := resp.Header.Get("Content-Type"); ct != "" && !strings.Contains(strings.ToLower(ct), "application/json") {
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logger.LogWarn(c.Request.Context(), "unexpected content-type from "+chItem.Name+": "+ct)
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}
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limited := io.LimitReader(resp.Body, maxRatioConfigBytes)
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// 兼容两种上游接口格式：
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// type1: /api/ratio_config -> data 为 map[string]any，包含 model_ratio/completion_ratio/cache_ratio/model_price
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// type2: /api/pricing -> data 为 []Pricing 列表，需要转换为与 type1 相同的 map 格式
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var body struct {
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Success bool `json:"success"`
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Data json.RawMessage `json:"data"`
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Message string `json:"message"`
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}
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if err := json.NewDecoder(limited).Decode(&body); err != nil {
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logger.LogWarn(c.Request.Context(), "json decode failed from "+chItem.Name+": "+err.Error())
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ch <- upstreamResult{Name: uniqueName, Err: err.Error()}
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return
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}
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if !body.Success {
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ch <- upstreamResult{Name: uniqueName, Err: body.Message}
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return
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}
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// 若 Data 为空，将继续按 type1 尝试解析（与多数静态 ratio_config 兼容）
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// 尝试按 type1 解析
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var type1Data map[string]any
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if err := json.Unmarshal(body.Data, &type1Data); err == nil {
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// 如果包含至少一个 ratioTypes 字段，则认为是 type1
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isType1 := false
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for _, rt := range ratioTypes {
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if _, ok := type1Data[rt]; ok {
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isType1 = true
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break
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}
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}
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if isType1 {
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ch <- upstreamResult{Name: uniqueName, Data: type1Data}
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return
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}
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}
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// 如果不是 type1，则尝试按 type2 (/api/pricing) 解析
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var pricingItems []struct {
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ModelName string `json:"model_name"`
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QuotaType int `json:"quota_type"`
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ModelRatio float64 `json:"model_ratio"`
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ModelPrice float64 `json:"model_price"`
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CompletionRatio float64 `json:"completion_ratio"`
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}
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if err := json.Unmarshal(body.Data, &pricingItems); err != nil {
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logger.LogWarn(c.Request.Context(), "unrecognized data format from "+chItem.Name+": "+err.Error())
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ch <- upstreamResult{Name: uniqueName, Err: "无法解析上游返回数据"}
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return
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}
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modelRatioMap := make(map[string]float64)
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completionRatioMap := make(map[string]float64)
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modelPriceMap := make(map[string]float64)
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for _, item := range pricingItems {
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if item.QuotaType == 1 {
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modelPriceMap[item.ModelName] = item.ModelPrice
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} else {
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modelRatioMap[item.ModelName] = item.ModelRatio
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// completionRatio 可能为 0，此时也直接赋值，保持与上游一致
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completionRatioMap[item.ModelName] = item.CompletionRatio
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}
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}
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converted := make(map[string]any)
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if len(modelRatioMap) > 0 {
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ratioAny := make(map[string]any, len(modelRatioMap))
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for k, v := range modelRatioMap {
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ratioAny[k] = v
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}
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converted["model_ratio"] = ratioAny
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}
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if len(completionRatioMap) > 0 {
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compAny := make(map[string]any, len(completionRatioMap))
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for k, v := range completionRatioMap {
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compAny[k] = v
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}
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converted["completion_ratio"] = compAny
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}
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if len(modelPriceMap) > 0 {
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priceAny := make(map[string]any, len(modelPriceMap))
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for k, v := range modelPriceMap {
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priceAny[k] = v
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}
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converted["model_price"] = priceAny
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}
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ch <- upstreamResult{Name: uniqueName, Data: converted}
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}(chn)
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}
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wg.Wait()
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close(ch)
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localData := ratio_setting.GetExposedData()
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var testResults []dto.TestResult
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var successfulChannels []struct {
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name string
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data map[string]any
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}
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for r := range ch {
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if r.Err != "" {
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testResults = append(testResults, dto.TestResult{
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Name: r.Name,
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Status: "error",
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Error: r.Err,
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})
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} else {
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testResults = append(testResults, dto.TestResult{
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Name: r.Name,
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Status: "success",
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})
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successfulChannels = append(successfulChannels, struct {
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name string
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data map[string]any
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}{name: r.Name, data: r.Data})
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}
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}
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differences := buildDifferences(localData, successfulChannels)
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"data": gin.H{
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"differences": differences,
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"test_results": testResults,
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},
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})
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}
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func buildDifferences(localData map[string]any, successfulChannels []struct {
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name string
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data map[string]any
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}) map[string]map[string]dto.DifferenceItem {
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differences := make(map[string]map[string]dto.DifferenceItem)
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allModels := make(map[string]struct{})
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for _, ratioType := range ratioTypes {
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if localRatioAny, ok := localData[ratioType]; ok {
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if localRatio, ok := localRatioAny.(map[string]float64); ok {
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for modelName := range localRatio {
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allModels[modelName] = struct{}{}
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}
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}
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}
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}
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for _, channel := range successfulChannels {
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for _, ratioType := range ratioTypes {
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if upstreamRatio, ok := channel.data[ratioType].(map[string]any); ok {
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for modelName := range upstreamRatio {
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allModels[modelName] = struct{}{}
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}
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}
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}
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}
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confidenceMap := make(map[string]map[string]bool)
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// 预处理阶段：检查pricing接口的可信度
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for _, channel := range successfulChannels {
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confidenceMap[channel.name] = make(map[string]bool)
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modelRatios, hasModelRatio := channel.data["model_ratio"].(map[string]any)
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completionRatios, hasCompletionRatio := channel.data["completion_ratio"].(map[string]any)
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if hasModelRatio && hasCompletionRatio {
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// 遍历所有模型，检查是否满足不可信条件
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for modelName := range allModels {
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// 默认为可信
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confidenceMap[channel.name][modelName] = true
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// 检查是否满足不可信条件：model_ratio为37.5且completion_ratio为1
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if modelRatioVal, ok := modelRatios[modelName]; ok {
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if completionRatioVal, ok := completionRatios[modelName]; ok {
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// 转换为float64进行比较
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if modelRatioFloat, ok := modelRatioVal.(float64); ok {
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if completionRatioFloat, ok := completionRatioVal.(float64); ok {
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if modelRatioFloat == 37.5 && completionRatioFloat == 1.0 {
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confidenceMap[channel.name][modelName] = false
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}
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}
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}
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}
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}
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}
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} else {
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// 如果不是从pricing接口获取的数据，则全部标记为可信
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for modelName := range allModels {
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confidenceMap[channel.name][modelName] = true
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}
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}
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}
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for modelName := range allModels {
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for _, ratioType := range ratioTypes {
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var localValue interface{} = nil
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if localRatioAny, ok := localData[ratioType]; ok {
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if localRatio, ok := localRatioAny.(map[string]float64); ok {
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if val, exists := localRatio[modelName]; exists {
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localValue = val
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}
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}
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}
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upstreamValues := make(map[string]interface{})
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confidenceValues := make(map[string]bool)
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hasUpstreamValue := false
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hasDifference := false
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for _, channel := range successfulChannels {
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var upstreamValue interface{} = nil
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if upstreamRatio, ok := channel.data[ratioType].(map[string]any); ok {
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if val, exists := upstreamRatio[modelName]; exists {
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upstreamValue = val
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hasUpstreamValue = true
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if localValue != nil && !valuesEqual(localValue, val) {
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hasDifference = true
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} else if valuesEqual(localValue, val) {
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upstreamValue = "same"
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}
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}
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}
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if upstreamValue == nil && localValue == nil {
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upstreamValue = "same"
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}
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if localValue == nil && upstreamValue != nil && upstreamValue != "same" {
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hasDifference = true
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}
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upstreamValues[channel.name] = upstreamValue
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confidenceValues[channel.name] = confidenceMap[channel.name][modelName]
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}
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shouldInclude := false
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if localValue != nil {
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if hasDifference {
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shouldInclude = true
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}
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} else {
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if hasUpstreamValue {
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shouldInclude = true
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}
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}
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if shouldInclude {
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if differences[modelName] == nil {
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differences[modelName] = make(map[string]dto.DifferenceItem)
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}
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differences[modelName][ratioType] = dto.DifferenceItem{
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Current: localValue,
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Upstreams: upstreamValues,
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Confidence: confidenceValues,
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}
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}
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}
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}
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channelHasDiff := make(map[string]bool)
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for _, ratioMap := range differences {
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for _, item := range ratioMap {
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for chName, val := range item.Upstreams {
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if val != nil && val != "same" {
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channelHasDiff[chName] = true
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}
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}
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}
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}
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for modelName, ratioMap := range differences {
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for ratioType, item := range ratioMap {
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for chName := range item.Upstreams {
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if !channelHasDiff[chName] {
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delete(item.Upstreams, chName)
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delete(item.Confidence, chName)
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}
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}
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allSame := true
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for _, v := range item.Upstreams {
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if v != "same" {
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allSame = false
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break
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}
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}
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if len(item.Upstreams) == 0 || allSame {
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delete(ratioMap, ratioType)
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} else {
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differences[modelName][ratioType] = item
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}
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}
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if len(ratioMap) == 0 {
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delete(differences, modelName)
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}
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}
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return differences
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}
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func GetSyncableChannels(c *gin.Context) {
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channels, err := model.GetAllChannels(0, 0, true, false)
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if err != nil {
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c.JSON(http.StatusOK, gin.H{
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"success": false,
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"message": err.Error(),
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})
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return
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}
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var syncableChannels []dto.SyncableChannel
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for _, channel := range channels {
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if channel.GetBaseURL() != "" {
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syncableChannels = append(syncableChannels, dto.SyncableChannel{
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ID: channel.Id,
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Name: channel.Name,
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BaseURL: channel.GetBaseURL(),
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Status: channel.Status,
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})
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}
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|
}
|
|
|
|
syncableChannels = append(syncableChannels, dto.SyncableChannel{
|
|
ID: -100,
|
|
Name: "官方倍率预设",
|
|
BaseURL: "https://basellm.github.io",
|
|
Status: 1,
|
|
})
|
|
|
|
c.JSON(http.StatusOK, gin.H{
|
|
"success": true,
|
|
"message": "",
|
|
"data": syncableChannels,
|
|
})
|
|
}
|