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continuing work on console. it can print stuff in tail -f
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@ -228,43 +228,55 @@ router["/tabs/by-id"] = {
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router["/tabs/by-id/*/title.txt"] = withTab(tab => tab.title + "\n");
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router["/tabs/by-id/*/text.txt"] = fromScript(`document.body.innerText`);
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})();
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let nextConsoleFh = 0;
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let nextConsoleFh = 0; let consoleForFh = {};
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router["/tabs/by-id/*/console"] = {
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async open({path}) {
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const tabId = parseInt(pathComponent(path, -2));
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const fh = nextConsoleFh++;
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const code = `
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(function() {
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console.__logs${fh} = [];
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console.__logBefore${fh} = console.log;
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console.log = (...xs) => {
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console.__logBefore${fh}(...xs);
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console.__logs${fh}.push(xs);
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};
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})()
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// runs in 'content script' context
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var script = document.createElement('script');
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var code = document.createTextNode(\`
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// runs in real Web page context (this is where we want to hook console.log)
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(function() {
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if (!console.__logOld) console.__logOld = console.log;
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console.log = (...xs) => {
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console.__logOld(...xs);
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// TODO: use random event for security instead of this broadcast
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window.postMessage({fh: ${fh}, xs: xs}, '*');
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};
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})()
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\`);
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script.appendChild(code);
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(document.body || document.head).appendChild(script);
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window.addEventListener('message', function({data}) {
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if (data.fh !== ${fh}) return;
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chrome.runtime.sendMessage(null, data);
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});
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`;
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consoleForFh[fh] = [];
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chrome.runtime.onMessage.addListener(data => {
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if (data.fh !== fh) return;
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consoleForFh[fh].push(data.xs);
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});
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await browser.tabs.executeScript(tabId, {code});
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return {fh};
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},
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async read({path, fh}) {
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const tabId = parseInt(pathComponent(path, -2));
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const code = `console.__logs${fh}.join('\n')`;
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const buf = (await browser.tabs.executeScript(tabId, {code}))[0];
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const buf = consoleForFh[fh].join('\n');
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return { buf };
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},
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async release({fh}) {
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const tabId = parseInt(pathComponent(path, -2));
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const code = `
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(function() {
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console.log = console.__logBefore${fh};
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})()
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`;
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await browser.tabs.executeScript(tabId, {code});
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// TODO: clean up everything
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return {};
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}
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};
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router["/tabs/by-id/*/eval"] = {
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async write({path, buf}) {
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// FIXME: chunk this properly (like if they write a script in
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// multiple chunks) and only execute when ready?
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const tabId = parseInt(pathComponent(path, -2));
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await browser.tabs.executeScript(tabId, {code: buf});
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return {size: stringToUtf8Array(buf).length};
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