[Share] When DOI is empty, get DOI from URL

[groele]

Description

当DOI为空时，通过URL中获取DOI
When DOI is empty, get DOI from URL

Event

None

Operation

Script

Data

/**
 * A description of this script.
 * @author Seking
 * @usage 当DOI为空时，通过URL中获取DOI
 * @usage When DOI is empty, get DOI from URL
 * @link https://github.com/windingwind/zotero-actions-tags/discussions/
 * @see https://github.com/windingwind/zotero-actions-tags/discussions/
 */
// Fill DOI from URL
// Name : Fill DOI from URL
// Event : None
// Operation : Script
// Data : JS code below
// Shortcut: None
// Menu Label: Fill DOI from URL
// V 0.1

if (!items?.length) return;

// 遍历所有选定的条目
for (const item of items) {
  // 获取条目的URL
  var url = item.getField("url");

  // 检查URL是否存在
  if (url) {
    // 尝试从条目中获取DOI
    var doi = item.getField("DOI");

    // 如果DOI字段为空白，则尝试从网页内容中获取DOI
    if (!doi) {
      try {
        var response = await Zotero.HTTP.request("GET", url);
        if (response.status == 200) {
          var parser = new DOMParser();
          var htmlDoc = parser.parseFromString(
            response.responseText,
            "text/html"
          );
          var doiElement = htmlDoc.querySelector('meta[name="citation_doi"]');

          if (doiElement) {
            doi = doiElement.content;
          } else {
            // 如果没有找到meta标签，尝试使用正则表达式匹配DOI
            var doiRegex = /(10\.\d{4,9}\/[-._;()\/:A-Z0-9]+)/i;
            var match = response.responseText.match(doiRegex);
            if (match && match[1]) {
              doi = match[1];
            }
          }
        }
      } catch (e) {
        Zotero.debug(e);
      }

      if (doi) {
        // 将获取的DOI填入条目的DOI字段
        item.setField("DOI", doi);
        await item.saveTx();
      }
    }
  }
}

return "DOI matching completed";

Anything else

No response

[chhrisssd]

when I use this scritpt, I get the message: “ DOI matching completed” at the end of the process, but I can't find the DOI. It's neither in the field nor in the clipboard. I use Zotero 7.0.11