feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

frontend/packages/devops/json-link-preview/src/utils/download.ts

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+export const fetchResource = async (url: string) => {
+  const response = await fetch(url);
+  const blob = await response.blob();
+  return blob;
+};
+
+export const downloadFile = (blob: Blob, filename?: string) => {
+  const downloadUrl = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+  link.style.display = 'none';
+  link.href = downloadUrl;
+  link.setAttribute('download', filename || 'document');
+  document.body.appendChild(link);
+  link.click();
+  link.remove();
+};

frontend/packages/devops/json-link-preview/src/utils/parse.ts

@@ -0,0 +1,71 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+export interface JsonValue {
+  content_type: string;
+  content: {
+    text: string | null;
+    image_url: null | {
+      url: string;
+      name: string;
+    };
+    file_url: null | {
+      url: string;
+      file_name: string;
+      suffix_type: string;
+    };
+  };
+}
+
+const supportedType = new Set(['image', 'file']);
+
+export interface Result {
+  link: string;
+  contentType: string;
+  extraInfo?: Record<string, string>;
+}
+
+export const parse = (inputValue: JsonValue[]) => {
+  const result: Record<string, Result> = {};
+
+  inputValue.forEach(item => {
+    if (!supportedType.has(item.content_type)) {
+      return;
+    }
+
+    if (item.content_type === 'image') {
+      const link = item.content.image_url?.url ?? '';
+      result[link] = {
+        link,
+        contentType: 'image',
+      };
+    }
+
+    if (item.content_type === 'file') {
+      const suffixType = item.content.file_url?.suffix_type ?? '';
+      const link = item.content.file_url?.url ?? '';
+      result[link] = {
+        link,
+        contentType: suffixType,
+        extraInfo: {
+          fileName: item.content.file_url?.file_name ?? '',
+        },
+      };
+    }
+  });
+
+  return result;
+};

frontend/packages/devops/json-link-preview/src/utils/url.ts

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+const httpUrlRegex =
+  /^https?:\/\/(?:www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b(?:[-a-zA-Z0-9()@:%_\+.~#?&\/=]*)$/;
+
+export function isValidHttpUrl(url: string): boolean {
+  return httpUrlRegex.test(url);
+}