403 lines
11 KiB
Go
403 lines
11 KiB
Go
package controller
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import (
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"fmt"
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"net/http"
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"one-api/common"
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"strconv"
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"strings"
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"github.com/gin-gonic/gin"
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)
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type Message struct {
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Role string `json:"role"`
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Content any `json:"content"`
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Name *string `json:"name,omitempty"`
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}
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type ImageURL struct {
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Url string `json:"url,omitempty"`
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Detail string `json:"detail,omitempty"`
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}
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type TextContent struct {
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Type string `json:"type,omitempty"`
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Text string `json:"text,omitempty"`
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}
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type ImageContent struct {
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Type string `json:"type,omitempty"`
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ImageURL *ImageURL `json:"image_url,omitempty"`
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}
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const (
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ContentTypeText = "text"
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ContentTypeImageURL = "image_url"
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)
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type OpenAIMessageContent struct {
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Type string `json:"type,omitempty"`
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Text string `json:"text"`
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ImageURL *ImageURL `json:"image_url,omitempty"`
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}
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func (m Message) IsStringContent() bool {
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_, ok := m.Content.(string)
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return ok
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}
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func (m Message) StringContent() string {
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content, ok := m.Content.(string)
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if ok {
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return content
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}
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contentList, ok := m.Content.([]any)
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if ok {
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var contentStr string
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for _, contentItem := range contentList {
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contentMap, ok := contentItem.(map[string]any)
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if !ok {
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continue
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}
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if contentMap["type"] == ContentTypeText {
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if subStr, ok := contentMap["text"].(string); ok {
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contentStr += subStr
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}
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}
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}
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return contentStr
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}
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return ""
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}
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func (m Message) ParseContent() []OpenAIMessageContent {
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var contentList []OpenAIMessageContent
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content, ok := m.Content.(string)
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if ok {
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contentList = append(contentList, OpenAIMessageContent{
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Type: ContentTypeText,
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Text: content,
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})
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return contentList
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}
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anyList, ok := m.Content.([]any)
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if ok {
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for _, contentItem := range anyList {
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contentMap, ok := contentItem.(map[string]any)
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if !ok {
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continue
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}
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switch contentMap["type"] {
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case ContentTypeText:
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if subStr, ok := contentMap["text"].(string); ok {
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contentList = append(contentList, OpenAIMessageContent{
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Type: ContentTypeText,
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Text: subStr,
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})
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}
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case ContentTypeImageURL:
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if subObj, ok := contentMap["image_url"].(map[string]any); ok {
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contentList = append(contentList, OpenAIMessageContent{
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Type: ContentTypeImageURL,
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ImageURL: &ImageURL{
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Url: subObj["url"].(string),
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},
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})
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}
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}
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}
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return contentList
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}
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return nil
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}
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const (
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RelayModeUnknown = iota
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RelayModeChatCompletions
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RelayModeCompletions
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RelayModeEmbeddings
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RelayModeModerations
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RelayModeImagesGenerations
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RelayModeEdits
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RelayModeAudioSpeech
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RelayModeAudioTranscription
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RelayModeAudioTranslation
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)
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// https://platform.openai.com/docs/api-reference/chat
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type ResponseFormat struct {
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Type string `json:"type,omitempty"`
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}
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type GeneralOpenAIRequest struct {
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Model string `json:"model,omitempty"`
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Messages []Message `json:"messages,omitempty"`
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Prompt any `json:"prompt,omitempty"`
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Stream bool `json:"stream,omitempty"`
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MaxTokens int `json:"max_tokens,omitempty"`
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Temperature float64 `json:"temperature,omitempty"`
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TopP float64 `json:"top_p,omitempty"`
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N int `json:"n,omitempty"`
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Input any `json:"input,omitempty"`
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Instruction string `json:"instruction,omitempty"`
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Size string `json:"size,omitempty"`
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Functions any `json:"functions,omitempty"`
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FrequencyPenalty float64 `json:"frequency_penalty,omitempty"`
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PresencePenalty float64 `json:"presence_penalty,omitempty"`
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ResponseFormat *ResponseFormat `json:"response_format,omitempty"`
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Seed float64 `json:"seed,omitempty"`
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Tools any `json:"tools,omitempty"`
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ToolChoice any `json:"tool_choice,omitempty"`
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User string `json:"user,omitempty"`
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}
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func (r GeneralOpenAIRequest) ParseInput() []string {
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if r.Input == nil {
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return nil
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}
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var input []string
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switch r.Input.(type) {
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case string:
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input = []string{r.Input.(string)}
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case []any:
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input = make([]string, 0, len(r.Input.([]any)))
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for _, item := range r.Input.([]any) {
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if str, ok := item.(string); ok {
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input = append(input, str)
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}
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}
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}
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return input
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}
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type ChatRequest struct {
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Model string `json:"model"`
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Messages []Message `json:"messages"`
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MaxTokens int `json:"max_tokens"`
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}
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type TextRequest struct {
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Model string `json:"model"`
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Messages []Message `json:"messages"`
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Prompt string `json:"prompt"`
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MaxTokens int `json:"max_tokens"`
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//Stream bool `json:"stream"`
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}
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// ImageRequest docs: https://platform.openai.com/docs/api-reference/images/create
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type ImageRequest struct {
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Model string `json:"model"`
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Prompt string `json:"prompt" binding:"required"`
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N int `json:"n,omitempty"`
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Size string `json:"size,omitempty"`
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Quality string `json:"quality,omitempty"`
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ResponseFormat string `json:"response_format,omitempty"`
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Style string `json:"style,omitempty"`
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User string `json:"user,omitempty"`
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}
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type WhisperJSONResponse struct {
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Text string `json:"text,omitempty"`
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}
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type WhisperVerboseJSONResponse struct {
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Task string `json:"task,omitempty"`
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Language string `json:"language,omitempty"`
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Duration float64 `json:"duration,omitempty"`
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Text string `json:"text,omitempty"`
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Segments []Segment `json:"segments,omitempty"`
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}
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type Segment struct {
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Id int `json:"id"`
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Seek int `json:"seek"`
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Start float64 `json:"start"`
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End float64 `json:"end"`
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Text string `json:"text"`
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Tokens []int `json:"tokens"`
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Temperature float64 `json:"temperature"`
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AvgLogprob float64 `json:"avg_logprob"`
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CompressionRatio float64 `json:"compression_ratio"`
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NoSpeechProb float64 `json:"no_speech_prob"`
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}
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type TextToSpeechRequest struct {
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Model string `json:"model" binding:"required"`
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Input string `json:"input" binding:"required"`
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Voice string `json:"voice" binding:"required"`
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Speed float64 `json:"speed"`
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ResponseFormat string `json:"response_format"`
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}
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type Usage struct {
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PromptTokens int `json:"prompt_tokens"`
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CompletionTokens int `json:"completion_tokens"`
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TotalTokens int `json:"total_tokens"`
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}
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type OpenAIError struct {
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Message string `json:"message"`
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Type string `json:"type"`
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Param string `json:"param"`
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Code any `json:"code"`
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}
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type OpenAIErrorWithStatusCode struct {
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OpenAIError
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StatusCode int `json:"status_code"`
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}
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type TextResponse struct {
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Choices []OpenAITextResponseChoice `json:"choices"`
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Usage `json:"usage"`
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Error OpenAIError `json:"error"`
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}
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type OpenAITextResponseChoice struct {
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Index int `json:"index"`
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Message `json:"message"`
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FinishReason string `json:"finish_reason"`
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}
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type OpenAITextResponse struct {
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Id string `json:"id"`
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Model string `json:"model,omitempty"`
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Object string `json:"object"`
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Created int64 `json:"created"`
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Choices []OpenAITextResponseChoice `json:"choices"`
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Usage `json:"usage"`
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}
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type OpenAIEmbeddingResponseItem struct {
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Object string `json:"object"`
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Index int `json:"index"`
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Embedding []float64 `json:"embedding"`
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}
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type OpenAIEmbeddingResponse struct {
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Object string `json:"object"`
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Data []OpenAIEmbeddingResponseItem `json:"data"`
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Model string `json:"model"`
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Usage `json:"usage"`
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}
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type ImageResponse struct {
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Created int `json:"created"`
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Data []struct {
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Url string `json:"url"`
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}
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}
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type ChatCompletionsStreamResponseChoice struct {
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Delta struct {
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Content string `json:"content"`
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} `json:"delta"`
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FinishReason *string `json:"finish_reason,omitempty"`
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}
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type ChatCompletionsStreamResponse struct {
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Id string `json:"id"`
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Object string `json:"object"`
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Created int64 `json:"created"`
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Model string `json:"model"`
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Choices []ChatCompletionsStreamResponseChoice `json:"choices"`
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}
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type CompletionsStreamResponse struct {
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Choices []struct {
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Text string `json:"text"`
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FinishReason string `json:"finish_reason"`
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} `json:"choices"`
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}
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func Relay(c *gin.Context) {
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relayMode := RelayModeUnknown
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if strings.HasPrefix(c.Request.URL.Path, "/v1/chat/completions") {
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relayMode = RelayModeChatCompletions
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} else if strings.HasPrefix(c.Request.URL.Path, "/v1/completions") {
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relayMode = RelayModeCompletions
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} else if strings.HasPrefix(c.Request.URL.Path, "/v1/embeddings") {
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relayMode = RelayModeEmbeddings
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} else if strings.HasSuffix(c.Request.URL.Path, "embeddings") {
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relayMode = RelayModeEmbeddings
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} else if strings.HasPrefix(c.Request.URL.Path, "/v1/moderations") {
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relayMode = RelayModeModerations
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} else if strings.HasPrefix(c.Request.URL.Path, "/v1/images/generations") {
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relayMode = RelayModeImagesGenerations
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} else if strings.HasPrefix(c.Request.URL.Path, "/v1/edits") {
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relayMode = RelayModeEdits
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} else if strings.HasPrefix(c.Request.URL.Path, "/v1/audio/speech") {
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relayMode = RelayModeAudioSpeech
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} else if strings.HasPrefix(c.Request.URL.Path, "/v1/audio/transcriptions") {
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relayMode = RelayModeAudioTranscription
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} else if strings.HasPrefix(c.Request.URL.Path, "/v1/audio/translations") {
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relayMode = RelayModeAudioTranslation
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}
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var err *OpenAIErrorWithStatusCode
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switch relayMode {
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case RelayModeImagesGenerations:
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err = relayImageHelper(c, relayMode)
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case RelayModeAudioSpeech:
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fallthrough
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case RelayModeAudioTranslation:
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fallthrough
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case RelayModeAudioTranscription:
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err = relayAudioHelper(c, relayMode)
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default:
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err = relayTextHelper(c, relayMode)
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}
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if err != nil {
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requestId := c.GetString(common.RequestIdKey)
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retryTimesStr := c.Query("retry")
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retryTimes, _ := strconv.Atoi(retryTimesStr)
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if retryTimesStr == "" {
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retryTimes = common.RetryTimes
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}
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if retryTimes > 0 {
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c.Redirect(http.StatusTemporaryRedirect, fmt.Sprintf("%s?retry=%d", c.Request.URL.Path, retryTimes-1))
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} else {
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if err.StatusCode == http.StatusTooManyRequests {
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err.OpenAIError.Message = "当前分组上游负载已饱和，请稍后再试"
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}
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err.OpenAIError.Message = common.MessageWithRequestId(err.OpenAIError.Message, requestId)
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c.JSON(err.StatusCode, gin.H{
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"error": err.OpenAIError,
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})
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}
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channelId := c.GetInt("channel_id")
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common.LogError(c.Request.Context(), fmt.Sprintf("relay error (channel #%d): %s", channelId, err.Message))
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// https://platform.openai.com/docs/guides/error-codes/api-errors
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if shouldDisableChannel(&err.OpenAIError, err.StatusCode) {
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channelId := c.GetInt("channel_id")
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channelName := c.GetString("channel_name")
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disableChannel(channelId, channelName, err.Message)
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}
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}
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}
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func RelayNotImplemented(c *gin.Context) {
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err := OpenAIError{
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Message: "API not implemented",
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Type: "one_api_error",
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Param: "",
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Code: "api_not_implemented",
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}
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c.JSON(http.StatusNotImplemented, gin.H{
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"error": err,
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})
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}
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func RelayNotFound(c *gin.Context) {
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err := OpenAIError{
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Message: fmt.Sprintf("Invalid URL (%s %s)", c.Request.Method, c.Request.URL.Path),
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Type: "invalid_request_error",
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Param: "",
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Code: "",
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}
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c.JSON(http.StatusNotFound, gin.H{
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"error": err,
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})
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}
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