Initial open-source release (MIT): image2api AI gateway

Full Go backend + Vue 3 frontend, OpenAI-compatible API, multi-provider account pools, billing/admin, Docker one-command deploy with auto HTTPS. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-25 22:59:04 +08:00
commit 606caaf047
142 changed files with 33648 additions and 0 deletions
@@ -0,0 +1,125 @@
+package chatgpt
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+const (
+	baseURL                  = "https://chatgpt.com"
+	defaultUserAgent         = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36 Edg/149.0.0.0"
+	defaultClientVersion     = "prod-ab8a6348980a3e1d771c463b9f4f3e4e584f2769"
+	defaultClientBuildNumber = "7624276"
+	defaultPOWScript         = "https://chatgpt.com/backend-api/sentinel/sdk.js"
+)
+
+var (
+	fileServiceIDPattern = regexp.MustCompile(`file-service://([A-Za-z0-9_-]+)`)
+	sedimentIDPattern    = regexp.MustCompile(`sediment://([A-Za-z0-9_-]+)`)
+	realImageIDPattern   = regexp.MustCompile(`\bfile_00000000[a-f0-9]{24}\b`)
+	conversationIDRE     = regexp.MustCompile(`"conversation_id"\s*:\s*"([^"]+)"`)
+	scriptSrcRE          = regexp.MustCompile(`<script[^>]+src="([^"]+)"`)
+	dataBuildPathRE      = regexp.MustCompile(`c/[^/]*/_`)
+	htmlDataBuildRE      = regexp.MustCompile(`<html[^>]*data-build="([^"]*)"`)
+)
+
+func stringValue(v any) string {
+	switch x := v.(type) {
+	case string:
+		return x
+	case nil:
+		return ""
+	default:
+		return fmt.Sprint(v)
+	}
+}
+
+func intValue(v any) int {
+	switch x := v.(type) {
+	case int:
+		return x
+	case int64:
+		return int(x)
+	case float64:
+		return int(x)
+	case float32:
+		return int(x)
+	case json.Number:
+		n, _ := x.Int64()
+		return int(n)
+	case string:
+		n, _ := strconv.Atoi(strings.TrimSpace(x))
+		return n
+	default:
+		return 0
+	}
+}
+
+func decodeJWTPayload(token string) map[string]any {
+	parts := strings.Split(strings.TrimSpace(token), ".")
+	if len(parts) < 2 {
+		return map[string]any{}
+	}
+	raw, err := base64.RawURLEncoding.DecodeString(parts[1])
+	if err != nil {
+		return map[string]any{}
+	}
+	var out map[string]any
+	if err := json.Unmarshal(raw, &out); err != nil {
+		return map[string]any{}
+	}
+	return out
+}
+
+func newUUID() string {
+	return uuid.NewString()
+}
+
+func clip(v []byte, n int) string {
+	s := strings.TrimSpace(string(v))
+	if len(s) <= n {
+		return s
+	}
+	return s[:n]
+}
+
+func parsePOWResources(html string) ([]string, string) {
+	matches := scriptSrcRE.FindAllStringSubmatch(html, -1)
+	sources := make([]string, 0, len(matches))
+	dataBuild := ""
+	for _, match := range matches {
+		if len(match) < 2 {
+			continue
+		}
+		src := strings.TrimSpace(match[1])
+		if src == "" {
+			continue
+		}
+		sources = append(sources, src)
+		if dataBuild == "" {
+			if path := dataBuildPathRE.FindString(src); path != "" {
+				dataBuild = path
+			}
+		}
+	}
+	if dataBuild == "" {
+		if match := htmlDataBuildRE.FindStringSubmatch(html); len(match) >= 2 {
+			dataBuild = strings.TrimSpace(match[1])
+		}
+	}
+	if len(sources) == 0 {
+		sources = []string{defaultPOWScript}
+	}
+	return sources, dataBuild
+}
+
+func timeMillis() int64 {
+	return time.Now().UnixMilli()
+}