mirror of
https://github.com/infiniflow/ragflow.git
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320 lines
11 KiB
Go
320 lines
11 KiB
Go
//
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// Copyright 2026 The InfiniFlow Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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package models
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import (
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"bytes"
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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/http"
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"ragflow/internal/common"
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"strings"
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)
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// FuturMixModel implements ModelDriver for FuturMix
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type FuturMixModel struct {
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baseModel BaseModel
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}
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// NewFuturMixModel creates a new FuturMix model instance.
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func NewFuturMixModel(baseURL map[string]string, urlSuffix URLSuffix) *FuturMixModel {
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return &FuturMixModel{
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baseModel: BaseModel{
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BaseURL: baseURL,
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URLSuffix: urlSuffix,
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httpClient: NewDriverHTTPClient(),
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},
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}
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}
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func (f *FuturMixModel) NewInstance(baseURL map[string]string) ModelDriver {
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return NewFuturMixModel(baseURL, f.baseModel.URLSuffix)
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}
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func (f *FuturMixModel) Name() string {
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return "futurmix"
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}
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func (f *FuturMixModel) endpointURL(region, suffix string) (string, error) {
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baseURL, err := f.baseModel.GetBaseURL(&APIConfig{Region: ®ion})
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if err != nil {
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return "", err
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}
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baseURL = strings.TrimSuffix(baseURL, "/")
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return fmt.Sprintf("%s/%s", baseURL, strings.TrimLeft(suffix, "/")), nil
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}
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func futurmixRegion(apiConfig *APIConfig) string {
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if apiConfig != nil && apiConfig.Region != nil && *apiConfig.Region != "" {
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return *apiConfig.Region
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}
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return "default"
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}
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func newFuturMixJSONRequest(ctx context.Context, method, endpoint string, payload interface{}, apiKey string) (*http.Request, error) {
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var body io.Reader
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if payload != nil {
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jsonData, err := json.Marshal(payload)
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if err != nil {
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return nil, fmt.Errorf("failed to marshal request: %w", err)
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}
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body = bytes.NewBuffer(jsonData)
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}
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req, err := http.NewRequestWithContext(ctx, method, endpoint, body)
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if err != nil {
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return nil, fmt.Errorf("failed to create request: %w", err)
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}
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req.Header.Set("Content-Type", "application/json")
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if apiKey != "" {
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req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", apiKey))
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}
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return req, nil
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}
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type futurmixChatChoice struct {
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Message futurmixChatMessage `json:"message"`
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Delta futurmixChatDelta `json:"delta"`
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FinishReason string `json:"finish_reason"`
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}
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type futurmixChatMessage struct {
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Content *string `json:"content"`
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ReasoningContent string `json:"reasoning_content"`
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}
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type futurmixChatDelta struct {
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Content string `json:"content"`
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ReasoningContent string `json:"reasoning_content"`
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}
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type futurmixChatResponse struct {
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Choices []futurmixChatChoice `json:"choices"`
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}
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// ChatWithMessages sends a non-streaming chat completion
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func (f *FuturMixModel) ChatWithMessages(ctx context.Context, modelName string, messages []Message, apiConfig *APIConfig, chatModelConfig *ChatConfig, modelUsage *common.ModelUsage) (*ChatResponse, error) {
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if err := f.baseModel.APIConfigCheck(apiConfig); err != nil {
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return nil, err
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}
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if len(messages) == 0 {
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return nil, fmt.Errorf("messages is empty")
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}
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resolvedBaseURL, err := f.baseModel.GetBaseURL(apiConfig)
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if err != nil {
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return nil, err
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}
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url := fmt.Sprintf("%s/%s", resolvedBaseURL, f.baseModel.URLSuffix.Chat)
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reqBody := buildRequestBody(chatModelConfig, modelName, messages, false)
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jsonData, err := json.Marshal(reqBody)
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if err != nil {
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return nil, fmt.Errorf("failed to marshal request: %w", err)
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}
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ctx, cancel := context.WithTimeout(ctx, nonStreamCallTimeout)
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defer cancel()
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req, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewBuffer(jsonData))
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if err != nil {
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return nil, fmt.Errorf("failed to create request: %w", err)
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}
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", *apiConfig.ApiKey))
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resp, err := f.baseModel.httpClient.Do(req)
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if err != nil {
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return nil, fmt.Errorf("failed to send request: %w", err)
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}
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defer resp.Body.Close()
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, fmt.Errorf("failed to read response: %w", err)
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}
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if resp.StatusCode != http.StatusOK {
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return nil, fmt.Errorf("futurmix chat API error: %s, body: %s", resp.Status, string(body))
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}
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var parsed futurmixChatResponse
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if err := json.Unmarshal(body, &parsed); err != nil {
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return nil, fmt.Errorf("failed to parse response: %w", err)
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}
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if len(parsed.Choices) == 0 {
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return nil, fmt.Errorf("no choices in response")
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}
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if parsed.Choices[0].Message.Content == nil {
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return nil, fmt.Errorf("invalid content format")
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}
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content := *parsed.Choices[0].Message.Content
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reasonContent := parsed.Choices[0].Message.ReasoningContent
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return &ChatResponse{
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Answer: &content,
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ReasonContent: &reasonContent,
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}, nil
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}
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// ChatStreamlyWithSender sends a streaming chat completion
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func (f *FuturMixModel) ChatStreamlyWithSender(ctx context.Context, modelName string, messages []Message, apiConfig *APIConfig, chatModelConfig *ChatConfig, modelUsage *common.ModelUsage, sender func(*string, *string) error) error {
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if err := f.baseModel.APIConfigCheck(apiConfig); err != nil {
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return err
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}
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if len(messages) == 0 {
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return fmt.Errorf("messages is empty")
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}
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resolvedBaseURL, err := f.baseModel.GetBaseURL(apiConfig)
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if err != nil {
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return err
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}
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url := fmt.Sprintf("%s/%s", resolvedBaseURL, f.baseModel.URLSuffix.Chat)
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reqBody := buildRequestBody(chatModelConfig, modelName, messages, false)
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jsonData, err := json.Marshal(reqBody)
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if err != nil {
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return fmt.Errorf("failed to marshal request: %w", err)
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}
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ctx, cancel := context.WithTimeout(ctx, nonStreamCallTimeout)
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defer cancel()
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req, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewBuffer(jsonData))
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if err != nil {
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return fmt.Errorf("failed to create request: %w", err)
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}
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", *apiConfig.ApiKey))
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resp, err := f.baseModel.httpClient.Do(req)
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if err != nil {
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return fmt.Errorf("failed to send request: %w", err)
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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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body, _ := io.ReadAll(resp.Body)
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return fmt.Errorf("futurmix chat stream API error: %s, body: %s", resp.Status, string(body))
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}
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sawTerminal := false
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done, err := ParseSSEStream[futurmixChatResponse](resp.Body, func(event futurmixChatResponse) error {
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if len(event.Choices) == 0 {
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return nil
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}
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choice := event.Choices[0]
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if choice.Delta.ReasoningContent != "" {
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r := choice.Delta.ReasoningContent
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if err := sender(nil, &r); err != nil {
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return err
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}
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}
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if choice.Delta.Content != "" {
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c := choice.Delta.Content
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if err := sender(&c, nil); err != nil {
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return err
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}
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}
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if choice.FinishReason != "" {
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sawTerminal = true
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}
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return nil
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})
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if err != nil {
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return fmt.Errorf("failed to scan response body: %w", err)
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}
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if !done && !sawTerminal {
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return fmt.Errorf("futurmix: stream ended before [DONE] or finish_reason")
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}
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endOfStream := "[DONE]"
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return sender(&endOfStream, nil)
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}
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// Embed is not exposed by the FuturMix API per the public docs.
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func (f *FuturMixModel) Embed(ctx context.Context, modelName *string, texts []string, apiConfig *APIConfig, embeddingConfig *EmbeddingConfig, modelUsage *common.ModelUsage) ([]EmbeddingData, error) {
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return nil, fmt.Errorf("%s, no such method", f.Name())
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}
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// Rerank is not exposed by the FuturMix API per the public docs.
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func (f *FuturMixModel) Rerank(ctx context.Context, modelName *string, query string, documents []string, apiConfig *APIConfig, rerankConfig *RerankConfig, modelUsage *common.ModelUsage) (*RerankResponse, error) {
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return nil, fmt.Errorf("%s, no such method", f.Name())
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}
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// ListModels is not documented as a public endpoint by FuturMix.
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func (f *FuturMixModel) ListModels(ctx context.Context, apiConfig *APIConfig) ([]ListModelResponse, error) {
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return nil, fmt.Errorf("%s, no such method", f.Name())
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}
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// CheckConnection is not exposed by the FuturMix API.
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func (f *FuturMixModel) CheckConnection(ctx context.Context, apiConfig *APIConfig) error {
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return fmt.Errorf("%s, no such method", f.Name())
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}
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// Balance is not exposed by the FuturMix public API.
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func (f *FuturMixModel) Balance(ctx context.Context, apiConfig *APIConfig) (map[string]interface{}, error) {
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return nil, fmt.Errorf("%s, no such method", f.Name())
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}
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// TranscribeAudio is not exposed by the FuturMix API per the docs.
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func (f *FuturMixModel) TranscribeAudio(ctx context.Context, modelName *string, file *string, apiConfig *APIConfig, asrConfig *ASRConfig, modelUsage *common.ModelUsage) (*ASRResponse, error) {
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return nil, fmt.Errorf("%s, no such method", f.Name())
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}
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func (f *FuturMixModel) TranscribeAudioWithSender(ctx context.Context, modelName *string, file *string, apiConfig *APIConfig, asrConfig *ASRConfig, modelUsage *common.ModelUsage, sender func(*string, *string) error) error {
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return fmt.Errorf("%s, no such method", f.Name())
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}
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// AudioSpeech is not exposed by the FuturMix API per the docs.
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func (f *FuturMixModel) AudioSpeech(ctx context.Context, modelName *string, audioContent *string, apiConfig *APIConfig, ttsConfig *TTSConfig, modelUsage *common.ModelUsage) (*TTSResponse, error) {
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return nil, fmt.Errorf("%s, no such method", f.Name())
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}
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func (f *FuturMixModel) AudioSpeechWithSender(ctx context.Context, modelName *string, audioContent *string, apiConfig *APIConfig, ttsConfig *TTSConfig, modelUsage *common.ModelUsage, sender func(*string, *string) error) error {
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return fmt.Errorf("%s, no such method", f.Name())
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}
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// OCRFile is not exposed by the FuturMix API per the docs.
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func (f *FuturMixModel) OCRFile(ctx context.Context, modelName *string, content []byte, url *string, apiConfig *APIConfig, ocrConfig *OCRConfig, modelUsage *common.ModelUsage) (*OCRFileResponse, error) {
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return nil, fmt.Errorf("%s, no such method", f.Name())
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}
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// ParseFile is not exposed by the FuturMix API per the docs.
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func (f *FuturMixModel) ParseFile(ctx context.Context, modelName *string, content []byte, url *string, apiConfig *APIConfig, parseFileConfig *ParseFileConfig, modelUsage *common.ModelUsage) (*ParseFileResponse, error) {
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return nil, fmt.Errorf("%s, no such method", f.Name())
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}
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// ListTasks is not exposed by the FuturMix API per the docs.
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func (f *FuturMixModel) ListTasks(ctx context.Context, apiConfig *APIConfig) ([]ListTaskStatus, error) {
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return nil, fmt.Errorf("%s, no such method", f.Name())
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}
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// ShowTask is not exposed by the FuturMix API per the docs.
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func (f *FuturMixModel) ShowTask(ctx context.Context, taskID string, apiConfig *APIConfig) (*TaskResponse, error) {
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return nil, fmt.Errorf("%s, no such method", f.Name())
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}
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