增加复制粘贴交互

contracts/assets/http-v1.json

@@ -8,6 +8,10 @@
     "publicNotDownloadable": { "status": 404, "body": { "error": "Asset file is not downloadable." } },
     "noFiles": { "status": 400, "body": { "error": "No files uploaded." } },
     "tooLarge": { "status": 413, "body": { "error": "Request body is too large." } },
+    "importImageInvalidURL": { "status": 400, "body": { "error": "图片地址无效，请使用 http 或 https 链接" } },
+    "importImageTooLarge": { "status": 413, "body": { "error": "图片过大" } },
+    "importImageUnsupported": { "status": 415, "body": { "error": "不支持的图片格式" } },
+    "importImageUnavailable": { "status": 502, "body": { "error": "图片地址不可访问" } },
     "internal": { "status": 500, "body": { "error": "Internal server error." } }
   },
   "methods": {
@@ -20,9 +24,23 @@
     "downloadCacheControl": "private, no-store",
     "servedCacheControl": "public, max-age=31536000, immutable"
   },
+  "importImage": {
+    "method": "POST",
+    "path": "/api/assets/import-image",
+    "auth": "platform-session",
+    "contentType": "application/json",
+    "request": { "url": "string" },
+    "success": { "status": 201, "body": { "asset": "Asset" } },
+    "source": "upload",
+    "formats": ["png", "jpeg", "webp", "gif", "bmp"],
+    "maxURLBytes": 8192,
+    "maxImageBytes": 20971520,
+    "maxImagePixels": 25000000
+  },
   "routes": [
     { "path": "/api/assets", "allow": "GET, HEAD, POST, OPTIONS" },
     { "path": "/api/assets/upload", "allow": "POST, OPTIONS" },
+    { "path": "/api/assets/import-image", "allow": "POST, OPTIONS" },
     { "path": "/api/assets/{id}", "allow": "DELETE, OPTIONS" },
     { "path": "/api/assets/{id}/download", "allow": "GET, HEAD, OPTIONS" },
     { "path": "/api/v1/assets", "allow": "GET, HEAD, POST, OPTIONS" },