Seefs
a073f74b38
* refactor: deprecate int32 * fix(db): reject legacy user quota schemas at startup * fix(quota): enforce wallet bounds and saturating billing conversions * fix(rate-limit): keep count*duration from wrapping int64 * fix: error message
79 lines
2.5 KiB
Go
79 lines
2.5 KiB
Go
package setting
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import (
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"fmt"
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"math"
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"sync"
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"github.com/QuantumNous/new-api/common"
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)
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// maxRateLimitDurationSeconds is the largest window the count cap is computed
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// against (24h). Token-bucket capacity is count*duration; this keeps that
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// product inside int64 when the window is at most a day.
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const maxRateLimitDurationSeconds = 24 * 60 * 60
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// maxModelRequestRateLimitCount is math.MaxInt64 / maxRateLimitDurationSeconds.
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// It is the largest count that cannot overflow int64(count)*duration for a
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// window of at most 24 hours.
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const maxModelRequestRateLimitCount int64 = math.MaxInt64 / maxRateLimitDurationSeconds
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var ModelRequestRateLimitEnabled = false
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var ModelRequestRateLimitDurationMinutes = 1
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var ModelRequestRateLimitCount = 0
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var ModelRequestRateLimitSuccessCount = 1000
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var ModelRequestRateLimitGroup = map[string][2]int{}
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var ModelRequestRateLimitMutex sync.RWMutex
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func ModelRequestRateLimitGroup2JSONString() string {
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ModelRequestRateLimitMutex.RLock()
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defer ModelRequestRateLimitMutex.RUnlock()
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jsonBytes, err := common.Marshal(ModelRequestRateLimitGroup)
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if err != nil {
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common.SysLog("error marshalling model ratio: " + err.Error())
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}
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return string(jsonBytes)
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}
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func UpdateModelRequestRateLimitGroupByJSONString(jsonStr string) error {
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ModelRequestRateLimitMutex.RLock()
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defer ModelRequestRateLimitMutex.RUnlock()
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ModelRequestRateLimitGroup = make(map[string][2]int)
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return common.Unmarshal([]byte(jsonStr), &ModelRequestRateLimitGroup)
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}
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func GetGroupRateLimit(group string) (totalCount, successCount int, found bool) {
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ModelRequestRateLimitMutex.RLock()
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defer ModelRequestRateLimitMutex.RUnlock()
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if ModelRequestRateLimitGroup == nil {
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return 0, 0, false
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}
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limits, found := ModelRequestRateLimitGroup[group]
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if !found {
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return 0, 0, false
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}
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return limits[0], limits[1], true
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}
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func CheckModelRequestRateLimitGroup(jsonStr string) error {
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checkModelRequestRateLimitGroup := make(map[string][2]int)
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err := common.Unmarshal([]byte(jsonStr), &checkModelRequestRateLimitGroup)
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if err != nil {
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return err
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}
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for group, limits := range checkModelRequestRateLimitGroup {
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if limits[0] < 0 || limits[1] < 1 {
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return fmt.Errorf("group %s has negative rate limit values: [%d, %d]", group, limits[0], limits[1])
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}
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if int64(limits[0]) > maxModelRequestRateLimitCount || int64(limits[1]) > maxModelRequestRateLimitCount {
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return fmt.Errorf("group %s [%d, %d] exceeds max rate limit %d", group, limits[0], limits[1], maxModelRequestRateLimitCount)
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}
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}
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return nil
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}
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