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 +1,151 @@
+package chatgpt
+
+import (
+	"encoding/base64"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"math/rand"
+	"strconv"
+	"strings"
+	"time"
+
+	"golang.org/x/crypto/sha3"
+)
+
+var (
+	cores             = []int{8, 16, 24, 32}
+	documentKeys      = []string{"__reactContainer$fzelfjyxej8", "_reactListening5dehydibo78", "location"}
+	screenResolutions = [][2]int{{1920, 1080}, {1440, 900}, {2560, 1440}, {3840, 2160}}
+	navKeys           = []string{
+		"registerProtocolHandler−function registerProtocolHandler() { [native code] }",
+		"storage−[object StorageManager]",
+		"locks−[object LockManager]",
+		"appCodeName−Mozilla",
+		"permissions−[object Permissions]",
+		"share−function share() { [native code] }",
+		"webdriver−false",
+		"vendor−Google Inc.",
+		"mediaDevices−[object MediaDevices]",
+		"cookieEnabled−true",
+		"onLine−true",
+		"mimeTypes−[object MimeTypeArray]",
+		"credentials−[object CredentialsContainer]",
+		"serviceWorker−[object ServiceWorkerContainer]",
+		"keyboard−[object Keyboard]",
+		"gpu−[object GPU]",
+		"doNotTrack",
+		"language−zh-CN",
+		"geolocation−[object Geolocation]",
+		"hardwareConcurrency−32",
+	}
+	winKeys = []string{
+		"0", "window", "self", "document", "name", "location", "history",
+		"navigation", "innerWidth", "innerHeight", "screen", "chrome",
+		"navigator", "performance", "crypto", "indexedDB", "sessionStorage",
+		"localStorage", "fetch", "matchMedia", "postMessage", "setTimeout",
+		"caches", "__NEXT_DATA__",
+	}
+)
+
+func buildLegacyRequirementsToken(userAgent string, scriptSources []string, dataBuild string) string {
+	cfg := buildPOWConfig(userAgent, scriptSources, dataBuild)
+	body, _ := json.Marshal(cfg)
+	return "gAAAAAC" + base64.StdEncoding.EncodeToString(body)
+}
+
+func buildProofToken(seed, difficulty, userAgent string, scriptSources []string, dataBuild string) (string, error) {
+	cfg := buildPOWConfig(userAgent, scriptSources, dataBuild)
+	answer, solved := powGenerate(seed, difficulty, cfg, 500000)
+	if !solved {
+		return "", errors.New("failed to solve proof token")
+	}
+	return "gAAAAAB" + answer, nil
+}
+
+func buildPOWConfig(userAgent string, scriptSources []string, dataBuild string) []any {
+	// scriptSources/dataBuild are no longer part of the sentinel config array
+	// (the current chatgpt.com client dropped them); kept in the signature for
+	// call-site compatibility.
+	_ = scriptSources
+	_ = dataBuild
+	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
+	screen := screenResolutions[rng.Intn(len(screenResolutions))]
+	loc := time.FixedZone("GMT+0800", 8*3600)
+	nowLocal := time.Now().In(loc).Format("Mon Jan 02 2006 15:04:05") + " GMT+0800 (中国标准时间)"
+	perf := float64(time.Now().UnixNano()%1_000_000_000) / 1_000_000
+	return []any{
+		screen[0] + screen[1],  // [0]
+		nowLocal,               // [1] local time, JS Date.toString() shape
+		4395630592,             // [2]
+		1,                      // [3] overwritten by powGenerate counter
+		userAgent,              // [4]
+		nil,                    // [5] (was script source; now null)
+		defaultClientVersion,   // [6] oai-client-version, must match header
+		"zh-CN",                // [7] matches oai-language
+		"zh-CN,en,en-GB,en-US", // [8]
+		rng.Float64(),          // [9] overwritten by powGenerate counter
+		navKeys[rng.Intn(len(navKeys))],
+		documentKeys[rng.Intn(len(documentKeys))],
+		winKeys[rng.Intn(len(winKeys))],
+		perf,                         // [13]
+		newUUID(),                    // [14]
+		"",                           // [15]
+		cores[rng.Intn(len(cores))],  // [16]
+		float64(timeMillis()) - perf, // [17]
+		0, 0, 0, 0, 0, 0,
+		0,
+	}
+}
+
+func powGenerate(seed, difficulty string, cfg []any, limit int) (string, bool) {
+	target, err := hex.DecodeString(strings.TrimSpace(difficulty))
+	if err != nil {
+		return "", false
+	}
+	diffLen := len(strings.TrimSpace(difficulty)) / 2
+	seedBytes := []byte(seed)
+	head1, _ := json.Marshal(cfg[:3])
+	head2, _ := json.Marshal(cfg[4:9])
+	head3, _ := json.Marshal(cfg[10:])
+	static1 := []byte(string(head1[:len(head1)-1]) + ",")
+	static2 := []byte("," + string(head2[1:len(head2)-1]) + ",")
+	static3 := []byte("," + string(head3[1:]))
+
+	for i := 0; i < limit; i++ {
+		finalJSON := append([]byte{}, static1...)
+		finalJSON = append(finalJSON, []byte(strconvItoa(i))...)
+		finalJSON = append(finalJSON, static2...)
+		finalJSON = append(finalJSON, []byte(strconvItoa(i>>1))...)
+		finalJSON = append(finalJSON, static3...)
+		encoded := base64.StdEncoding.EncodeToString(finalJSON)
+		sum := sha3.Sum512(append(seedBytes, []byte(encoded)...))
+		if bytesCompare(sum[:diffLen], target) <= 0 {
+			return encoded, true
+		}
+	}
+	fallback := "wQ8Lk5FbGpA2NcR9dShT6gYjU7VxZ4D" + base64.StdEncoding.EncodeToString([]byte(`"`+seed+`"`))
+	return fallback, false
+}
+
+func bytesCompare(a, b []byte) int {
+	for i := 0; i < len(a) && i < len(b); i++ {
+		if a[i] < b[i] {
+			return -1
+		}
+		if a[i] > b[i] {
+			return 1
+		}
+	}
+	if len(a) < len(b) {
+		return -1
+	}
+	if len(a) > len(b) {
+		return 1
+	}
+	return 0
+}
+
+func strconvItoa(v int) string {
+	return strconv.Itoa(v)
+}