google-chrome - 调用谷歌的 "match patterns"API？

Question

这个问题在这里已经有了答案:





Can I allow the extension user to choose matching domains?

(1 个回答)


7年前关闭。




Chrome JavaScript API 使用 match patterns在各个地方。在 Chrome 扩展程序中，有没有办法手动调用谷歌用来测试 URL 是否遵守给定匹配模式的任何函数？我有一堆要测试的 URL。

Answer 1

不，那里没有。但是，使用正则表达式进行复制并不难。

这是一个实现。它检查匹配模式的正常限制，但不检查主机模式/测试 URL 主机的有效性。

function patternToRegExp(pattern){
  if(pattern == "<all_urls>") return /^(?:http|https|file|ftp):\/\/.*/;

  var split = /^(\*|http|https|file|ftp):\/\/(.*)$/.exec(pattern);
  if(!split) throw Error("Invalid schema in " + pattern);
  var schema = split[1];
  var fullpath = split[2];

  var split = /^([^\/]*)\/(.*)$/.exec(fullpath);
  if(!split) throw Error("No path specified in " + pattern);
  var host = split[1];
  var path = split[2];

  // File 
  if(schema == "file" && host != "")
    throw Error("Non-empty host for file schema in " + pattern);

  if(schema != "file" && host == "")
    throw Error("No host specified in " + pattern);  

  if(!(/^(\*|\*\.[^*]+|[^*]*)$/.exec(host)))
    throw Error("Illegal wildcard in host in " + pattern);

  var reString = "^";
  reString += (schema == "*") ? "https*" : schema;
  reString += ":\\/\\/";
  // Not overly concerned with intricacies
  //   of domain name restrictions and IDN
  //   as we're not testing domain validity
  reString += host.replace(/\*\.?/, "[^\\/]*");
  reString += "(:\\d+)?";
  reString += "\\/";
  reString += path.replace("*", ".*");
  reString += "$";

  return RegExp(reString);
}

// Usage example
// Precompile the expression for performance reasons
var re = patternToRegExp("*://*.example.com/*.css");
// Test against it
re.test("http://example.com/"); // false
re.test("https://example.com/css/example.css"); // true
re.test("http://www.example.com/test.css"); // true