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feature: only try sending events if the origins match

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DecentM 2018-02-03 22:38:59 +01:00
parent e8caa02e1a
commit 90399c53a8
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1 changed files with 23 additions and 25 deletions
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48
content/install-hook-openusercss.js
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@ -7,24 +7,26 @@
'https://openusercss.com' 'https://openusercss.com'
]; ];
const sendPostMessage = message => {
allowedOrigins.forEach(origin => {
if (origin === location.origin) {
window.postMessage(message, origin);
}
});
};
const askHandshake = () => { const askHandshake = () => {
// Tell the page that we exist and that it should send the handshake // Tell the page that we exist and that it should send the handshake
allowedOrigins.forEach(origin => { sendPostMessage({
window.postMessage({ type: 'ouc-begin-handshake'
type: 'ouc-begin-handshake'
}, origin);
}); });
}; };
// Listen for queries by the site and respond with a callback object // Listen for queries by the site and respond with a callback object
const sendInstalledCallback = styleData => { const sendInstalledCallback = styleData => {
allowedOrigins.forEach(origin => { sendPostMessage({
if (origin === location.origin) { type: 'ouc-is-installed-response',
window.postMessage({ style: styleData
type: 'ouc-is-installed-response',
style: styleData
}, origin);
}
}); });
}; };
@ -90,15 +92,13 @@
// We send the handshake response, which includes the key we got, plus some // We send the handshake response, which includes the key we got, plus some
// additional metadata // additional metadata
allowedOrigins.forEach(origin => { sendPostMessage({
window.postMessage({ type: 'ouc-handshake-response',
type: 'ouc-handshake-response', key: event.data.key,
key: event.data.key, extension: {
extension: { name: manifest.name,
name: manifest.name, capabilities: reportedFeatures
capabilities: reportedFeatures }
}
}, origin);
}); });
}; };
@ -118,11 +118,9 @@
const sendInstallCallback = data => { const sendInstallCallback = data => {
// Send an install callback to the site in order to let it know // Send an install callback to the site in order to let it know
// we were able to install the theme and it may display a success message // we were able to install the theme and it may display a success message
allowedOrigins.forEach(origin => { sendPostMessage({
window.postMessage({ type: 'ouc-install-callback',
type: 'ouc-install-callback', key: data.key
key: data.key
}, origin);
}); });
}; };