Question

我正在尝试为Mozilla创建一个插件，它可以打印简单的SSL详细信息，例如Name，并且证书在有效期之前有效。

这是我的代码：

var data = require("sdk/self").data;

var text_entry = require("sdk/panel").Panel({
  width: 412,
  height: 400,
  contentURL: data.url("text-entry.html"),
  contentScriptFile: data.url("get-text.js")
});

require("sdk/widget").Widget({
  label: "Text entry",
  id: "text-entry",
  contentURL: "http://www.mozilla.org/favicon.ico",    
  panel: text_entry,    
});
text_entry.on("show", function() {
  text_entry.port.emit("show");
});

text_entry.port.on("text-entered", function (text) {
  console.log(text);  

var requrl = require("sdk/tabs").activeTab.url;
console.log(requrl);

const {Ci,Cc} = require("chrome");
  //var req = new XMLHttpRequest();


var req = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"].createInstance(Ci.nsIXMLHttpRequest);
req.open('GET', requrl, false);
req.onload = function(e) {
 console.log(req);
let channel = req.channel;
console.log(requrl);

   if (! channel instanceof  Ci.nsIChannel) {
        console.log("No channel available\n");
        return;
    }
console.log(requrl);

var secInfo = req.securityInfo;
var cert = secInfo.QueryInterface(Ci.nsISSLStatusProvider).SSLStatus.QueryInterface(Ci.nsISSLStatus).serverCert    ;
var validity = cert.validity.QueryInterface(Ci.nsIX509CertValidity);

console.log(requrl);


  console.log("\tCommon name (CN) = " + cert.commonName + "\n");
  console.log("\tOrganisation = " + cert.organization + "\n");
  console.log("\tIssuer = " + cert.issuerOrganization + "\n");
  console.log("\tSHA1 fingerprint = " + cert.sha1Fingerprint + "\n");       
  console.log("\tValid from " + validity.notBeforeGMT + "\n");
  console.log("\tValid until " + validity.notAfterGMT + "\n");


 };

});

它说，XMLHttpRequest没有定义。打印到控制台时，通道结构也是空的。

Answer 1

不完全确定代码被破坏的地方或原因（因为我懒得复制像text-entry.html这样的缺失部分。）

无论如何，这是一个适用于我的快速测试，以及SDK附加组件和Scratchpad：

// Save as your main.js.
// Alternatively execute in a Scratchpad in about:newTab.
var sdk = false;
if (!("Cc" in this)) {
  try {
    // add-on SDK version
    this.Cc = require("chrome").Cc;
    this.Ci = require("chrome").Ci;
    this.log = console.error.bind(console);
    this.sdk = true;
    log("using SDK");
  }
  catch (ex) {
    // Scratchpad on about:newtab version
    this.Cc = Components["classes"];
    this.log = console.log.bind(console);
    log("using scratchpad");
  }
}
let r = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"]
  .createInstance(Ci.nsIXMLHttpRequest);
r.open("GET", "https://tn123.org/");
r.onloadend = function(e) {
  let ok = "OK";
  try {
    log(e);
    // Note: instanceof is an implicit QueryInterface!
    log(this.channel instanceof Ci.nsIChannel);
    log(this.channel.securityInfo instanceof Ci.nsISSLStatusProvider);
    let status, cert;
    log(status = this.channel.securityInfo.SSLStatus);
    log(status.cipherName);
    log(cert = status.serverCert);
    log("Common name (CN) = " + cert.commonName);
    log("Organisation = " + cert.organization);
    log("Issuer = " + cert.issuerOrganization);
    log("SHA1 fingerprint = " + cert.sha1Fingerprint);       
    log("Valid from " + cert.validity.notBeforeGMT);
    log("Valid until " + cert.validity.notAfterGMT);
    for (let k of Object.keys(cert)) {
      if (k[0].toUpperCase() === k[0]) {
        // skip constants
        continue;
      }
      let v = cert[k];
      if (typeof v === "function") {
        continue;
      }
      log(k + ": " + v);
    }
  }
  catch (ex) {
    log("Caught exception", ex);
    ok = ex;
  }
  if (sdk) {
   require("notifications").notify({
     title: "Test done",
     text: "HTTPS test done; result=" + ok
   });
  }
  log("HTTPS test done; result=" + ok);
};
r.send();

PS：我在SDK because中使用console.error：

如果您使用Extension Auto-installer开发附加组件，然后加载项安装在Firefox中，这意味着消息将会出现在浏览器控制台中。但请参阅日志记录的讨论级别：默认情况下，使用log（），info（），trace（）或 warn（）在这些情况下不会被记录。

Answer 2

您是否在内容脚本中写过这个？如果是这样，您就无法从内容脚本发出请求（这就是为什么它不存在）。你需要在main.js中写这个。如果你想与你的内容脚本（html，窗口等）进行通信，你必须使用消息传递：port.emit和addon.emit来发送消息，port.on和addon.on来监听消息。

用于SSL的Firefox插件

2 个答案: