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@ -299,24 +299,44 @@ var onHeadersReceived = function(details) { |
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var tabContext = µm.tabContextManager.lookup(tabId); |
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if ( tabContext === null ) { return; } |
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if ( µm.mustAllow(tabContext.rootHostname, µm.URI.hostnameFromURI(requestURL), 'script') ) { |
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return; |
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var csp = []; |
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if ( |
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µm.mustAllow( |
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tabContext.rootHostname, |
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µm.URI.hostnameFromURI(requestURL), |
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'script' |
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) !== true |
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) { |
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csp.push("script-src 'unsafe-eval' blob: *"); |
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} |
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if ( µm.cspNoWorkerSrc === undefined ) { |
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µm.cspNoWorkerSrc = vAPI.webextFlavor.startsWith('Mozilla-') ? |
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"child-src 'none'; frame-src data: blob: *" : |
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"worker-src 'none'" ; |
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} |
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if ( µm.tMatrix.evaluateSwitchZ('no-workers', tabContext.rootHostname) ) { |
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csp.push(µm.cspNoWorkerSrc); |
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} |
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if ( csp.length === 0 ) { return; } |
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// If javascript is not allowed, say so through a `Content-Security-Policy`
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// directive.
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// We block only inline-script tags, all the external javascript will be
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// blocked by our request handler.
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var csp = "script-src 'unsafe-eval' blob: *", |
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var cspDirectives = csp.join(','), |
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headers = details.responseHeaders, |
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i = headerIndexFromName('content-security-policy', headers); |
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// A CSP header is already present: just add our own directive as a
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// separate disposition (i.e. use comma).
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if ( i !== -1 ) { |
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headers[i].value += ', ' + csp; |
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headers[i].value += ', ' + cspDirectives; |
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} else { |
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headers.push({ name: 'Content-Security-Policy', value: csp }); |
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headers.push({ name: 'Content-Security-Policy', value: cspDirectives }); |
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} |
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if ( requestType === 'doc' ) { |
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Raymond Hill
7 years ago