我希望能够将Web应用程序中的消息发送到chrome扩展程序,以便更易于使用(发送身份验证令牌,因此用户不必登录两次)。但是,在看了documentation并阅读了一堆SO问题之后,我什么都无法为我工作。
manifest.json
中有一些部分:
"content_security_policy": "script-src 'self' https://330218550995.ngrok.io; object-src 'self'",
"background": {
"scripts": ["background.js"],
"persistent": false
},
"externally_connectable": {
"matches": [
"*://localhost/*",
"*://*.ngrok.io/*"
]
},
"content_scripts": [
{
"matches": ["<all_urls>"],
"exclude_matches": [
"*://*.olympiatasks.com/*",
"https://app.olympiatasks.com/*",
"https://*.olympiatasks.com/*"
],
"css": ["/static/css/main.css"],
"js": [
"/static/js/runtime-main.js",
"/static/js/2.js",
"/static/js/main.js"
]
}
],
在content script
里面,我这样做:
const ExtensionID = process.env.REACT_APP_EXTENSION_ID || '';
chrome?.runtime.connect(ExtensionID, { name: 'example' });
chrome?.runtime?.sendMessage('Hi from content script')
在web page
里面,我这样做:
const ExtensionID = process.env.REACT_APP_EXTENSION_ID || "";
chrome.runtime.connect(ExtensionID, { name: "example" });
chrome?.runtime?.sendMessage(ExtensionID, "Hi from app");
然后是background.js
中的侦听器:
chrome.runtime.onMessage.addListener((request, sender, sendResponse) => {
console.log({ request })
});
chrome.runtime.onMessageExternal.addListener((request, sender, sendResponse) => {
console.log("Received message from " + sender + ": ", request);
sendResponse({ received: true }); //respond however you like
});
打开网站后,扩展程序已成功注入,在background.js
页面的开发控制台中,我得到以下信息:
background.js的Hello world
{请求:“内容脚本中的嗨”}
缺少“来自应用程序的嗨”,这表示未发送/接收。我使用ngrok
来设置转发到我的应用,原因是:
localhost
https
可能是问题所在,但是如您所料,没有运气。
到目前为止,我已经执行了以下操作:
externally_connectable
中设置我的manifest.json
onMessageExternal
中设置background.js
侦听器runtime.sendMessage
,如图in the docs https
网站进行安全连接在此问题上的任何帮助都将受到赞赏
答案 0 :(得分:0)
我们可以使用content-script和背景js文件在网站和chrome扩展程序之间同步身份验证令牌。
在
web page
内部,我这样做 ...
我不确定您是如何在web page
上完成的
这就是我将访问令牌从web page
发送到extension
的过程。
这是我的content-script
文件。
/* eslint-disable no-undef */
const hostScript = () => {
// ----------------- Function Declarations -----------------
let listenGetTokenResponseFromWindow = () => {};
const sendMessagesToExtension = (msg, callback = null) => {
chrome.runtime.sendMessage(msg);
};
const sendMessagesToWindow = (msg, callback = null) => {
const { type } = msg;
switch (type) {
case ExtensionMessagesTypes.GetTokenFromWindow:
// Can not pass the function with window.postMessage. Only JSON object can be passed.
// So reset the listener
window.postMessage(msg, document.location.origin);
window.removeEventListener("message", listenGetTokenResponseFromWindow);
listenGetTokenResponseFromWindow = event => {
if (event.source !== window) return;
if (event.data.type === ExtensionMessagesTypes.GetTokenFromWindowResponse) {
const { payload } = event.data;
!!callback && callback(payload.token);
}
};
window.addEventListener("message", listenGetTokenResponseFromWindow);
break;
case ExtensionMessagesTypes.SetWindowToken:
window.postMessage(msg, document.location.origin);
!!callback && callback();
break;
default:
break;
}
};
const listenMessagesFromWindow = event => {
if (event.source !== window) return;
const msg = event.data;
Object.values(ExtensionMessagesTypes).includes(msg.type) && sendMessagesToExtension(msg);
};
const listenMessagesFromExtension = (msg, sender, response) => {
sendMessagesToWindow(msg, response);
return true; // means response is async
};
// ----------------- Listener Definitions -----------------
window.removeEventListener("message", listenMessagesFromWindow);
window.addEventListener("message", listenMessagesFromWindow);
chrome.runtime.onMessage.removeListener(listenMessagesFromExtension);
chrome.runtime.onMessage.addListener(listenMessagesFromExtension);
// Reset extension token as windows token
sendMessagesToWindow({ type: ExtensionMessagesTypes.GetTokenFromWindow }, token => {
sendMessagesToExtension({
type: ExtensionMessagesTypes.SetExtensionToken,
payload: { token }
});
});
};
这是background.js
文件。
(() => {
chrome.runtime.onMessage.addListener((msg, sender, response) => {
switch (msg.type) {
case ExtensionMessagesTypes.GetTokens:
getAccessTokens(response);
break;
case ExtensionMessagesTypes.SetExtensionToken:
!!msg.payload && !!msg.payload.token && setAccessTokenToExtensionLocalStorage(msg.payload.token, response);
break;
case ExtensionMessagesTypes.SetWindowToken:
!!msg.payload && !!msg.payload.token && sendMessageFromExtensionToWindow(msg, response);
break;
}
});
})();
const sendMessageFromExtensionToWindow = (msg, callback = null) => {
chrome.tabs.query({ currentWindow: true, url: `${HostURL}/*` }, tabs => {
if (tabs.length < 1) {
!!callback && callback(null);
return;
}
if (msg.type === ExtensionMessagesTypes.GetTokenFromWindow) {
chrome.tabs.sendMessage(tabs[0].id, msg, token => {
!!callback && callback(token);
});
} else if (msg.type === ExtensionMessagesTypes.SetWindowToken) {
chrome.tabs.sendMessage(tabs[0].id, msg, () => {
!!callback && callback();
});
}
});
};
// Authentication
const setAccessTokenToExtensionLocalStorage = (access_token, callback = null) => {
chrome.storage.local.set({ access_token }, () => {
!!callback && callback();
});
};
const getAccessTokenFromChromeStorage = callback => {
chrome.storage.local.get(['access_token'], result => {
!!callback && callback(result.access_token);
});
};
const getAccessTokens = callback => {
getAccessTokenFromChromeStorage(accessTokenFromExtension => {
sendMessageFromExtensionToWindow({ type: ExtensionMessagesTypes.GetTokenFromWindow }, accessTokenFromWindow => {
callback({
accessTokenFromExtension: accessTokenFromExtension || '',
accessTokenFromWindow: accessTokenFromWindow || ''
});
});
});
};
const handleLogin = payload => {
//TODO: Handling refresh token
const { token } = payload;
if (!token) return;
setAccessTokenToExtensionLocalStorage(token);
};
const handleLogout = () => {
setAccessTokenToExtensionLocalStorage(null);
};
PS:manifest.json文件中不需要externally_connectable
选项。
答案 1 :(得分:0)
感谢@wOxxOm评论,我能够解决此问题。
我引用:
暂时,由于ngrok.io位于public suffix list中,这意味着它基本上类似于com,而external_connectable禁止使用它。尝试对网站使用更具体的模式。
我将网址更改为使用一个更具体的https://330218550995.ngrok.io/*
,现在可以正常使用