1111

2026-08-26 15:30:31 +08:00
parent 9ae5e0bc54
commit db3d58bc99
16 changed files with 565 additions and 39 deletions
@@ -44,4 +44,35 @@ public class OnboardingPublicTaskController
        var fileId = await _service.GetContractSourceFileId(input);
        return await _fileService.Download(new BaseIdInput { Id = fileId });
    }
+
+    /// <summary>
+    /// 通过任务 Token 内联输出候选人已上传的图片材料，供手机端预览。
+    /// </summary>
+    [HttpGet("material-source")]
+    public async Task<FileStreamResult> MaterialSource(
+        [FromQuery] OnboardingPublicMaterialSourceInput input)
+    {
+        var material = await _service.GetMaterialSource(input);
+        var source = await _fileService.Download(new BaseIdInput { Id = material.FileId })
+            ?? throw Oops.Bah("上传文件不存在");
+        return new FileStreamResult(
+            source.FileStream,
+            GetImageContentType(material.FileSuffix));
+    }
+
+    /// <summary>
+    /// 根据图片扩展名设置浏览器可内联展示的响应类型。
+    /// </summary>
+    private static string GetImageContentType(string suffix)
+    {
+        return suffix?.TrimStart('.').ToLowerInvariant() switch
+        {
+            "png" => "image/png",
+            "jpg" or "jpeg" => "image/jpeg",
+            "gif" => "image/gif",
+            "bmp" => "image/bmp",
+            "webp" => "image/webp",
+            _ => "application/octet-stream"
+        };
+    }
 }