The Tor Browser: toolkit/components/passwordmgr/test/auth2/authenticate.sjs@129ffea94266 (annotated)

toolkit/components/passwordmgr/test/auth2/authenticate.sjs@129ffea94266 (annotated)

toolkit/components/passwordmgr/test/auth2/authenticate.sjs

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 function handleRequest(request, response)
 {
   try {
     reallyHandleRequest(request, response);
   } catch (e) {
     response.setStatusLine("1.0", 200, "AlmostOK");
     response.write("Error handling request: " + e);
   }
 }
 function reallyHandleRequest(request, response) {
   var match;
   var requestAuth = true, requestProxyAuth = true;
   // Allow the caller to drive how authentication is processed via the query.
   // Eg, http://localhost:8888/authenticate.sjs?user=foo&realm=bar
   // The extra ? allows the user/pass/realm checks to succeed if the name is
   // at the beginning of the query string.
   var query = "?" + request.queryString;
   var expected_user = "", expected_pass = "", realm = "mochitest";
   var proxy_expected_user = "", proxy_expected_pass = "", proxy_realm = "mochi-proxy";
   var huge = false, plugin = false, anonymous = false;
   var authHeaderCount = 1;
   // user=xxx
   match = /[^_]user=([^&]*)/.exec(query);
   if (match)
     expected_user = match[1];
   // pass=xxx
   match = /[^_]pass=([^&]*)/.exec(query);
   if (match)
     expected_pass = match[1];
   // realm=xxx
   match = /[^_]realm=([^&]*)/.exec(query);
   if (match)
     realm = match[1];
   // proxy_user=xxx
   match = /proxy_user=([^&]*)/.exec(query);
   if (match)
     proxy_expected_user = match[1];
   // proxy_pass=xxx
   match = /proxy_pass=([^&]*)/.exec(query);
   if (match)
     proxy_expected_pass = match[1];
   // proxy_realm=xxx
   match = /proxy_realm=([^&]*)/.exec(query);
   if (match)
     proxy_realm = match[1];
   // huge=1
   match = /huge=1/.exec(query);
   if (match)
     huge = true;
   // plugin=1
   match = /plugin=1/.exec(query);
   if (match)
     plugin = true;
   // multiple=1
   match = /multiple=([^&]*)/.exec(query);
   if (match)
     authHeaderCount = match[1]+0;
   // anonymous=1
   match = /anonymous=1/.exec(query);
   if (match)
     anonymous = true;
   // Look for an authentication header, if any, in the request.
   //
   // EG: Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
   //
   // This test only supports Basic auth. The value sent by the client is
   // "username:password", obscured with base64 encoding.
   var actual_user = "", actual_pass = "", authHeader, authPresent = false;
   if (request.hasHeader("Authorization")) {
     authPresent = true;
     authHeader = request.getHeader("Authorization");
     match = /Basic (.+)/.exec(authHeader);
     if (match.length != 2)
         throw "Couldn't parse auth header: " + authHeader;
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
     if (match.length != 3)
         throw "Couldn't decode auth header: " + userpass;
     actual_user = match[1];
     actual_pass = match[2];
   }
   var proxy_actual_user = "", proxy_actual_pass = "";
   if (request.hasHeader("Proxy-Authorization")) {
     authHeader = request.getHeader("Proxy-Authorization");
     match = /Basic (.+)/.exec(authHeader);
     if (match.length != 2)
         throw "Couldn't parse auth header: " + authHeader;
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
     if (match.length != 3)
         throw "Couldn't decode auth header: " + userpass;
     proxy_actual_user = match[1];
     proxy_actual_pass = match[2];
   }
   // Don't request authentication if the credentials we got were what we
   // expected.
   if (expected_user == actual_user &&
     expected_pass == actual_pass) {
     requestAuth = false;
   }
   if (proxy_expected_user == proxy_actual_user &&
     proxy_expected_pass == proxy_actual_pass) {
     requestProxyAuth = false;
   }
   if (anonymous) {
     if (authPresent) {
       response.setStatusLine("1.0", 400, "Unexpected authorization header found");
     } else {
       response.setStatusLine("1.0", 200, "Authorization header not found");
     }
   } else {
     if (requestProxyAuth) {
       response.setStatusLine("1.0", 407, "Proxy authentication required");
       for (i = 0; i < authHeaderCount; ++i)
         response.setHeader("Proxy-Authenticate", "basic realm=\"" + proxy_realm + "\"", true);
     } else if (requestAuth) {
       response.setStatusLine("1.0", 401, "Authentication required");
       for (i = 0; i < authHeaderCount; ++i)
         response.setHeader("WWW-Authenticate", "basic realm=\"" + realm + "\"", true);
     } else {
       response.setStatusLine("1.0", 200, "OK");
     }
   }
   response.setHeader("Content-Type", "application/xhtml+xml", false);
   response.write("<html xmlns='http://www.w3.org/1999/xhtml'>");
   response.write("<p>Login: <span id='ok'>" + (requestAuth ? "FAIL" : "PASS") + "</span></p>\n");
   response.write("<p>Proxy: <span id='proxy'>" + (requestProxyAuth ? "FAIL" : "PASS") + "</span></p>\n");
   response.write("<p>Auth: <span id='auth'>" + authHeader + "</span></p>\n");
   response.write("<p>User: <span id='user'>" + actual_user + "</span></p>\n");
   response.write("<p>Pass: <span id='pass'>" + actual_pass + "</span></p>\n");
   if (huge) {
     response.write("<div style='display: none'>");
     for (i = 0; i < 100000; i++) {
       response.write("123456789\n");
     }
     response.write("</div>");
     response.write("<span id='footnote'>This is a footnote after the huge content fill</span>");
   }
   if (plugin) {
     response.write("<embed id='embedtest' style='width: 400px; height: 100px;' " +
            "type='application/x-test'></embed>\n");
   }
   response.write("</html>");
 }
 // base64 decoder
 //
 // Yoinked from extensions/xml-rpc/src/nsXmlRpcClient.js because btoa()
 // doesn't seem to exist. :-(
 /* Convert Base64 data to a string */
 const toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,62, -1,-1,-1,63,
 ,53,54,55, 56,57,58,59, 60,61,-1,-1, -1, 0,-1,-1,
     -1, 0, 1, 2,  3, 4, 5, 6,  7, 8, 9,10, 11,12,13,14,
 ,16,17,18, 19,20,21,22, 23,24,25,-1, -1,-1,-1,-1,
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
 ,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];
 const base64Pad = '=';
 function base64ToString(data) {
     var result = '';
     var leftbits = 0; // number of bits decoded, but yet to be appended
     var leftdata = 0; // bits decoded, but yet to be appended
     // Convert one by one.
     for (var i = 0; i < data.length; i++) {
         var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
         var padding = (data[i] == base64Pad);
         // Skip illegal characters and whitespace
         if (c == -1) continue;
         // Collect data into leftdata, update bitcount
         leftdata = (leftdata << 6) | c;
         leftbits += 6;
         // If we have 8 or more bits, append 8 bits to the result
         if (leftbits >= 8) {
             leftbits -= 8;
             // Append if not padding.
             if (!padding)
                 result += String.fromCharCode((leftdata >> leftbits) & 0xff);
             leftdata &= (1 << leftbits) - 1;
         }
     }
     // If there are any bits left, the base64 string was corrupted
     if (leftbits)
         throw Components.Exception('Corrupted base64 string');
     return result;
 }

The Tor Browser / annotate

toolkit/components/passwordmgr/test/auth2/authenticate.sjs@129ffea94266 (annotated)

toolkit/components/passwordmgr/test/auth2/authenticate.sjs