Unity/Vuforia上传目标图片和叠加视频问题

Question

您好，我当前正在尝试保存并上传选定的目标图像并将视频覆盖到 vuforia，但我收到错误，我无法弄清楚这里是我使用的方法以及我在下面遇到的错误。还拿出了访问密钥。

  async void OnSaveButtonClicked()
{
    string title = titleInputField.text;
    if (string.IsNullOrEmpty(title))
    {
        Debug.LogError("Title cannot be empty.");
        return;
    }

    if (videoRenderTexture == null)
    {
        Debug.LogError("RenderTexture is null.");
        return;
    }

    Texture2D overlayTexture = GetTextureFromUIImage(overlayImageDisplay);

    try
    {
        await UploadImageToFirebase(overlayTexture);

        if (string.IsNullOrEmpty(capturedImageUrl))
        {
            Debug.LogError("Captured image URL is not set.");
            return;
        }

    
        await UploadImageToVuforia(overlayTexture);

        if (!string.IsNullOrEmpty(selectedVideoPath))
        {
            await UploadVideoToFirebase(selectedVideoPath);
        }

        string key = databaseReference.Push().Key;
        currentARExperienceData = new Dictionary<string, object>
    {
        { "title", title },
        { "capturedImageUrl", capturedImageUrl },
        { "overlayUrl", overlayUrl }
    };


        Debug.Log("Attempting to save data to Firebase...");
        await databaseReference.Child(key).UpdateChildrenAsync(currentARExperienceData);
        Debug.Log("Data saved successfully.");


        Debug.Log("AR experience saved successfully.");
        panelSwitcher.OpenPanel("ProfilePanel");
    }
    catch (Exception e)
    {
        Debug.LogError("Failed to save AR experience: " + e.Message);
    }
}

私有异步任务UploadImageToVuforia（Texture2D图像） { byte[] imageBytes = EncodeTextureToJPG(image);

    string targetName = "MyTarget";
    string accessKey = "";
    string secretKey = "";
    string endpoint = "https://vws.vuforia.com";

    var request = new HttpRequestMessage(HttpMethod.Post, $"{endpoint}/targets")
    {
        Content = new MultipartFormDataContent
        {
            { new ByteArrayContent(imageBytes), "file", "image.jpg" },
            { new StringContent(targetName), "name" }
        }
    };

    string date = DateTime.UtcNow.ToString("r");
    string stringToSign = $"{request.Method}\n\n\n{imageBytes.Length}\n{date}\n/targets";
    string signature = GenerateSignature(stringToSign, secretKey);

    request.Headers.Add("Authorization", $"VWS {accessKey}:{signature}");
    request.Headers.Add("Date", date);

    HttpClient client = new HttpClient();
    try
    {
        HttpResponseMessage response = await client.SendAsync(request);
        string responseBody = await response.Content.ReadAsStringAsync(); 

        if (response.IsSuccessStatusCode)
        {
            Debug.Log("Image successfully uploaded to Vuforia!");
        }
        else
        {
            Debug.LogError($"Vuforia upload failed: {response.ReasonPhrase}");
            Debug.LogError("Response body: " + responseBody); 
        }
    }

    catch (Exception e)
    {
        Debug.LogError("Vuforia upload failed: " + e.Message);
    }
}

private string GenerateSignature(string stringToSign, string secretKey)
{
    var encoding = new System.Text.ASCIIEncoding();
    byte[] keyBytes = encoding.GetBytes(secretKey);
    byte[] messageBytes = encoding.GetBytes(stringToSign);
    using (var hmacsha1 = new System.Security.Cryptography.HMACSHA1(keyBytes))
    {
        byte[] hashmessage = hmacsha1.ComputeHash(messageBytes);
        return Convert.ToBase64String(hashmessage);
    }
}

}上传失败：未经授权 UnityEngine.Debug:LogError（对象） CreateARManager/d__37:MoveNext ()（位于 Assets/Scripts/CreateARManager.cs:366） UnityEngine.UnitySynchronizationContext:执行任务()

响应正文：{"result_code":"AuthenticationFailure","transaction_id":"e58338366f80453fa91d67fbc0f6baf8"} UnityEngine.Debug:LogError（对象） CreateARManager/d__37:MoveNext ()（位于 Assets/Scripts/CreateARManager.cs:367） UnityEngine.UnitySynchronizationContext:执行任务()

AR体验保存失败：该方法或操作未实现。 UnityEngine.Debug:LogError（对象） CreateARManager/d__33:MoveNext ()（位于 Assets/Scripts/CreateARManager.cs:257） System.Threading.Tasks.TaskCompletionSource`1:SetResult (int) Firebase.FutureVoid/<>c__DisplayClass4_0:b__0 () （位于 /home/runner/work/firebase-unity-sdk/firebase-unity-sdk/linux_unity/app/swig/Firebase.App_fixed.cs:1368） Firebase.FutureVoid：SWIG_CompletionDispatcher（int）（位于/home/runner/work/firebase-unity-sdk/firebase-unity-sdk/linux_unity/app/swig/Firebase.App_fixed.cs:1456） Firebase.AppUtil:PollCallbacks () （位于 /home/runner/work/firebase-unity-sdk/firebase-unity-sdk/linux_unity/app/swig/Firebase.App_fixed.cs:4656） Firebase.Platform.FirebaseAppUtils:PollCallbacks () （位于 /home/runner/work/firebase-unity-sdk/firebase-unity-sdk/app/platform/FirebaseAppUtils.cs:33） Firebase.Platform.FirebaseHandler:Update () （位于 /home/runner/work/firebase-unity-sdk/firebase-unity-sdk/app/platform/Unity/FirebaseHandler.cs:208） Firebase.Platform.FirebaseMonoBehaviour：更新（）（位于/home/runner/work/firebase-unity-sdk/firebase-unity-sdk/app/platform/Unity/FirebaseMonoBehaviour.cs:45）

我尝试使用不同的方法，检查访问密钥是否正确，并确保我使用的是服务器密钥。检查终点是否正确。

Answer 1

检查您的StringToSign的格式，使其符合规范：

对请求的共享密钥签名字符串进行编码 Blob 或队列服务的 2009-09-19 版本及更高版本以及版本 2014-02-14 及更高版本的文件服务，使用以下格式：

StringToSign = VERB + "\n" +  

               Content-Encoding + "\n" +  

               Content-Language + "\n" +  

               Content-Length + "\n" +  

               Content-MD5 + "\n" +  

               Content-Type + "\n" +  

               Date + "\n" +  

               If-Modified-Since + "\n" +  

               If-Match + "\n" +  

               If-None-Match + "\n" +  

               If-Unmodified-Since + "\n" +  

               Range + "\n" +  

               CanonicalizedHeaders +  

               CanonicalizedResource;