1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/style/test/ccd.sjs Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,73 @@
1.4 +const DEBUG_all_valid = false;
1.5 +const DEBUG_all_stub = false;
1.6 +
1.7 +function handleRequest(request, response)
1.8 +{
1.9 + // Decode the query string to know what test we're doing.
1.10 +
1.11 + // character 1: 'I' = text/css response, 'J' = text/html response
1.12 + let responseCSS = (request.queryString[0] == 'I');
1.13 +
1.14 + // character 2: redirection type - we only care about whether we're
1.15 + // ultimately same-origin with the requesting document ('A', 'D') or
1.16 + // not ('B', 'C').
1.17 + let sameOrigin = (request.queryString[1] == 'A' ||
1.18 + request.queryString[1] == 'D');
1.19 +
1.20 + // character 3: '1' = syntactically valid, '2' = invalid, '3' = http error
1.21 + let malformed = (request.queryString[2] == '2');
1.22 + let httpError = (request.queryString[2] == '3');
1.23 +
1.24 + // character 4: loaded with <link> or @import (no action required)
1.25 +
1.26 + // character 5: loading document mode: 'q' = quirks, 's' = standards
1.27 + let quirksMode = (request.queryString[4] == 'q');
1.28 +
1.29 + // Our response contains a CSS rule that selects an element whose
1.30 + // ID is the first four characters of the query string.
1.31 + let selector = '#' + request.queryString.substring(0,4);
1.32 +
1.33 + // "Malformed" responses wrap the CSS rule in the construct
1.34 + // <html>{} ... </html>
1.35 + // This mimics what the CSS parser might see if an actual HTML
1.36 + // document were fed to it. Because CSS parsers recover from
1.37 + // errors by skipping tokens until they find something
1.38 + // recognizable, a style rule appearing where I wrote '...' above
1.39 + // will be honored!
1.40 + let leader = (malformed ? '<html>{}' : '');
1.41 + let trailer = (malformed ? '</html>' : '');
1.42 +
1.43 + // Standards mode documents will ignore the style sheet if it is being
1.44 + // served as text/html (regardless of its contents). Quirks mode
1.45 + // documents will ignore the style sheet if it is being served as
1.46 + // text/html _and_ it is not same-origin. Regardless, style sheets
1.47 + // are ignored if they come as the body of an HTTP error response.
1.48 + //
1.49 + // Style sheets that should be ignored paint the element red; those
1.50 + // that should be honored paint it lime.
1.51 + let color = ((responseCSS || (quirksMode && sameOrigin)) && !httpError
1.52 + ? 'lime' : 'red');
1.53 +
1.54 + // For debugging the test itself, we have the capacity to make every style
1.55 + // sheet well-formed, or every style sheet do nothing.
1.56 + if (DEBUG_all_valid) {
1.57 + // In this mode, every test chip should turn blue.
1.58 + response.setHeader('Content-Type', 'text/css');
1.59 + response.write(selector + '{background-color:blue}\n');
1.60 + } else if (DEBUG_all_stub) {
1.61 + // In this mode, every test chip for a case where the true test
1.62 + // sheet would be honored, should turn red.
1.63 + response.setHeader('Content-Type', 'text/css');
1.64 + response.write(selector + '{}\n');
1.65 + } else {
1.66 + // Normal operation.
1.67 + if (httpError)
1.68 + response.setStatusLine(request.httpVersion, 500,
1.69 + "Internal Server Error");
1.70 + response.setHeader('Content-Type',
1.71 + responseCSS ? 'text/css' : 'text/html');
1.72 + response.write(leader + selector +
1.73 + '{background-color:' + color + '}' +
1.74 + trailer + '\n');
1.75 + }
1.76 +}
