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Diffstat (limited to 'data/extensions/https-everywhere-eff@eff.org/chrome/content/code/HTTPSRules.js')
-rw-r--r--data/extensions/https-everywhere-eff@eff.org/chrome/content/code/HTTPSRules.js780
1 files changed, 0 insertions, 780 deletions
diff --git a/data/extensions/https-everywhere-eff@eff.org/chrome/content/code/HTTPSRules.js b/data/extensions/https-everywhere-eff@eff.org/chrome/content/code/HTTPSRules.js
deleted file mode 100644
index 1ae74d4..0000000
--- a/data/extensions/https-everywhere-eff@eff.org/chrome/content/code/HTTPSRules.js
+++ /dev/null
@@ -1,780 +0,0 @@
-// Compilation of RegExps is now delayed until they are first used...
-
-function Rule(from, to) {
- this.to = to;
- this.from_c = from; // This will become a RegExp after compilation
-}
-
-function Exclusion(pattern) {
- this.pattern_c = pattern; // Will become a RegExp after compilation
-}
-
-function CookieRule(host, cookiename) {
- this.host = host;
- this.name = cookiename;
-
- // These will be made during compilation:
-
- //this.host_c = new RegExp(host);
- //this.name_c = new RegExp(cookiename);
-}
-
-function RuleSet(id, name, xmlName, match_rule, default_off, platform) {
- if(xmlName == "WordPress.xml" || xmlName == "Github.xml") {
- this.log(NOTE, "RuleSet( name="+name+", xmlName="+xmlName+", match_rule="+match_rule+", default_off="+default_off+", platform="+platform+" )");
- }
-
- this.id=id;
- this.on_by_default = true;
- this.compiled = false;
- this.name = name;
- this.xmlName = xmlName;
- this.notes = "";
-
- if (match_rule) this.ruleset_match_c = new RegExp(match_rule);
- else this.ruleset_match_c = null;
- if (default_off) {
- // Perhaps problematically, this currently ignores the actual content of
- // the default_off XML attribute. Ideally we'd like this attribute to be
- // "valueless"
- this.notes = default_off;
- this.on_by_default = false;
- }
- if (platform)
- if (platform.search(HTTPSRules.localPlatformRegexp) == -1) {
- this.on_by_default = false;
- this.notes = "Only for " + platform;
- }
-
- this.rules = [];
- this.exclusions = [];
- this.cookierules = [];
-
- this.rule_toggle_prefs = HTTPSEverywhere.instance.rule_toggle_prefs;
-
- try {
- // if this pref exists, use it
- this.active = this.rule_toggle_prefs.getBoolPref(name);
- } catch(e) {
- // if not, use the default
- this.active = this.on_by_default;
- }
-}
-
-var dom_parser = Cc["@mozilla.org/xmlextras/domparser;1"].createInstance(Ci.nsIDOMParser);
-
-RuleSet.prototype = {
-
- ensureCompiled: function() {
- // Postpone compilation of exclusions, rules and cookies until now, to accelerate
- // browser load time.
- if (this.compiled) return;
- var i;
-
- for (i = 0; i < this.exclusions.length; ++i) {
- this.exclusions[i].pattern_c = new RegExp(this.exclusions[i].pattern_c);
- }
- for (i = 0; i < this.rules.length; ++i) {
- this.rules[i].from_c = new RegExp(this.rules[i].from_c);
- }
-
- for (i = 0; i < this.cookierules.length; i++) {
- var cr = this.cookierules[i];
- cr.host_c = new RegExp(cr.host);
- cr.name_c = new RegExp(cr.name);
- }
-
- this.compiled = true;
- },
-
- apply: function(urispec) {
- // return null if it does not apply
- // and the new url if it does apply
- var i;
- var returl = null;
- this.ensureCompiled();
- // If a rulset has a match_rule and it fails, go no further
- if (this.ruleset_match_c && !this.ruleset_match_c.test(urispec)) {
- this.log(VERB, "ruleset_match_c excluded " + urispec);
- return null;
- }
- // Even so, if we're covered by an exclusion, go home
- for (i = 0; i < this.exclusions.length; ++i) {
- if (this.exclusions[i].pattern_c.test(urispec)) {
- this.log(DBUG,"excluded uri " + urispec);
- return null;
- }
- }
- // Okay, now find the first rule that triggers
- for (i = 0; i < this.rules.length; ++i) {
- // This is just for displaying inactive rules
- returl = urispec.replace(this.rules[i].from_c, this.rules[i].to);
- if (returl != urispec) {
- // we rewrote the uri
- this.log(DBUG, "Rewrote " + urispec + " -> " + returl + " using " + this.xmlName + ": " + this.rules[i].from_c + " -> " + this.rules[i].to);
- return returl;
- }
- }
-
- return null;
- },
- log: function(level, msg) {
- https_everywhereLog(level, msg);
- },
-
- wouldMatch: function(hypothetical_uri, alist) {
- // return true if this ruleset would match the uri, assuming it were http
- // used for judging moot / inactive rulesets
- // alist is optional
-
- // if the ruleset is already somewhere in this applicable list, we don't
- // care about hypothetical wouldMatch questions
- if (alist && (this.name in alist.all)) return false;
-
- this.log(DBUG,"Would " +this.name + " match " +hypothetical_uri.spec +
- "? serial " + (alist && alist.serial));
-
- var uri = hypothetical_uri.clone();
- if (uri.scheme == "https") uri.scheme = "http";
- var urispec = uri.spec;
-
- this.ensureCompiled();
-
- if (this.ruleset_match_c && !this.ruleset_match_c.test(urispec))
- return false;
-
- for (var i = 0; i < this.exclusions.length; ++i)
- if (this.exclusions[i].pattern_c.test(urispec)) return false;
-
- for (var i = 0; i < this.rules.length; ++i)
- if (this.rules[i].from_c.test(urispec)) return true;
- return false;
- },
-
- transformURI: function(uri) {
- // If no rule applies, return null; if a rule would have applied but was
- // inactive, return 0; otherwise, return a fresh uri instance
- // for the target
- var newurl = this.apply(uri.spec);
- if (null == newurl)
- return null;
- var newuri = Components.classes["@mozilla.org/network/standard-url;1"].
- createInstance(CI.nsIStandardURL);
- newuri.init(CI.nsIStandardURL.URLTYPE_STANDARD, 443,
- newurl, uri.originCharset, null);
- newuri = newuri.QueryInterface(CI.nsIURI);
- return newuri;
- },
-
- enable: function() {
- // Enable us.
- this.rule_toggle_prefs.setBoolPref(this.name, true);
- this.active = true;
- },
-
- disable: function() {
- // Disable us.
- this.rule_toggle_prefs.setBoolPref(this.name, false);
- this.active = false;
- },
-
- toggle: function() {
- this.active = !this.active;
- this.rule_toggle_prefs.setBoolPref(this.name, this.active);
- },
-
- clear: function() {
- try {
- this.rule_toggle_prefs.clearUserPref(this.name);
- } catch(e) {
- // this ruleset has never been toggled
- }
- this.active = this.on_by_default;
- }
-};
-
-const RuleWriter = {
-
- getCustomRuleDir: function() {
- var loc = "ProfD"; // profile directory
- var file =
- CC["@mozilla.org/file/directory_service;1"]
- .getService(CI.nsIProperties)
- .get(loc, CI.nsILocalFile)
- .clone();
- file.append("HTTPSEverywhereUserRules");
- // Check for existence, if not, create.
- if (!file.exists()) {
- file.create(CI.nsIFile.DIRECTORY_TYPE, 0700);
- }
- if (!file.isDirectory()) {
- // XXX: Arg, death!
- }
- return file;
- },
-
- chromeToPath: function (aPath) {
- if (!aPath || !(/^chrome:/.test(aPath)))
- return; //not a chrome url
-
- var ios =
- CC['@mozilla.org/network/io-service;1']
- .getService(CI.nsIIOService);
- var uri = ios.newURI(aPath, "UTF-8", null);
- var cr =
- CC['@mozilla.org/chrome/chrome-registry;1']
- .getService(CI.nsIChromeRegistry);
- var rv = cr.convertChromeURL(uri).spec;
-
- if (/^file:/.test(rv))
- rv = this.urlToPath(rv);
- else
- rv = this.urlToPath("file://"+rv);
-
- return rv;
- },
-
- urlToPath: function (aPath) {
- if (!aPath || !/^file:/.test(aPath))
- return ;
-
- var ph =
- CC["@mozilla.org/network/protocol;1?name=file"]
- .createInstance(CI.nsIFileProtocolHandler);
- var rv = ph.getFileFromURLSpec(aPath).path;
-
- return rv;
- },
-
- readFromUrl: function (url) {
- var ios = CC['@mozilla.org/network/io-service;1']
- .getService(CI.nsIIOService);
- var encoding = "UTF-8";
- var channel = ios.newChannel(url, encoding, null);
- var stream = channel.open();
- var streamSize = stream.available();
-
- if (!streamSize) {
- return null;
- }
-
- var convStream = CC["@mozilla.org/intl/converter-input-stream;1"]
- .createInstance(CI.nsIConverterInputStream);
-
- convStream.init(stream, encoding, streamSize,
- convStream.DEFAULT_REPLACEMENT_CHARACTER);
-
- var data = {};
- convStream.readString(streamSize, data);
-
- return data.value;
- },
-
- readFromFile: function(file) {
- if (!file.exists())
- return null;
- var data = "";
- var fstream = CC["@mozilla.org/network/file-input-stream;1"]
- .createInstance(CI.nsIFileInputStream);
- var sstream = CC["@mozilla.org/scriptableinputstream;1"]
- .createInstance(CI.nsIScriptableInputStream);
- fstream.init(file, -1, 0, 0);
- sstream.init(fstream);
-
- var str = sstream.read(4096);
- while (str.length > 0) {
- data += str;
- str = sstream.read(4096);
- }
-
- sstream.close();
- fstream.close();
- return data;
- },
-
- write: function(file, data) {
- //if (!file.exists())
- // return null;
- this.log(DBUG, "Opening " + file.path + " for writing");
- var fstream = CC["@mozilla.org/network/file-output-stream;1"]
- .createInstance(CI.nsIFileOutputStream);
- fstream.init(file, -1, -1, 0);
-
- var retval = fstream.write(data, data.length);
- this.log(DBUG, "Got retval " + retval);
- fstream.close();
- return data;
- },
-
- rulesetFromFile: function(file, rule_store, ruleset_id) {
- if ((rule_store.targets == null) && (rule_store.targets != {}))
- this.log(WARN, "TARGETS IS NULL");
- var data = this.readFromFile(file);
- if (!data) return null;
- return this.readFromString(data, rule_store, ruleset_id);
- },
-
- readFromString: function(data, rule_store, ruleset_id) {
- try {
- var xmlruleset = dom_parser.parseFromString(data, "text/xml");
- } catch(e) { // file has been corrupted; XXX: handle error differently
- this.log(WARN,"Error in XML data: " + e + "\n" + data);
- return null;
- }
- this.parseOneRuleset(xmlruleset.documentElement, rule_store, ruleset_id);
- },
-
- parseOneRuleset: function(xmlruleset, rule_store, ruleset_id) {
- // Extract an xmlruleset into the rulestore
- if (!xmlruleset.getAttribute("name")) {
- this.log(WARN, "This blob: '" + xmlruleset + "' is not a ruleset\n");
- return null;
- }
-
- this.log(DBUG, "Parsing " + xmlruleset.getAttribute("name"));
-
- var match_rl = xmlruleset.getAttribute("match_rule");
- var dflt_off = xmlruleset.getAttribute("default_off");
- var platform = xmlruleset.getAttribute("platform");
- var rs = new RuleSet(ruleset_id, xmlruleset.getAttribute("name"), xmlruleset.getAttribute("f"), match_rl, dflt_off, platform);
-
- // see if this ruleset has the same name as an existing ruleset;
- // if so, this ruleset is ignored; DON'T add or return it.
- if (rs.name in rule_store.rulesetsByName) {
- this.log(WARN, "Error: found duplicate rule name " + rs.name);
- return null;
- }
-
- // Add this ruleset id into HTTPSRules.targets if it's not already there.
- // This should only happen for custom user rules. Built-in rules get
- // their ids preloaded into the targets map, and have their <target>
- // tags stripped when the JSON database is built.
- var targets = xmlruleset.getElementsByTagName("target");
- for (var i = 0; i < targets.length; i++) {
- var host = targets[i].getAttribute("host");
- if (!host) {
- this.log(WARN, "<target> missing host in " + xmlruleset.getAttribute("name"));
- return null;
- }
- if (! rule_store.targets[host])
- rule_store.targets[host] = [];
- this.log(DBUG, "Adding " + host + " to targets, pointing at " + ruleset_id);
- rule_store.targets[host].push(ruleset_id);
- }
-
- var exclusions = xmlruleset.getElementsByTagName("exclusion");
- for (var i = 0; i < exclusions.length; i++) {
- var exclusion = new Exclusion(exclusions[i].getAttribute("pattern"));
- rs.exclusions.push(exclusion);
- }
-
- var rules = xmlruleset.getElementsByTagName("rule");
- for (var i = 0; i < rules.length; i++) {
- var rule = new Rule(rules[i].getAttribute("from"),
- rules[i].getAttribute("to"));
- rs.rules.push(rule);
- }
-
- var securecookies = xmlruleset.getElementsByTagName("securecookie");
- for (var i = 0; i < securecookies.length; i++) {
- var c_rule = new CookieRule(securecookies[i].getAttribute("host"),
- securecookies[i].getAttribute("name"));
- rs.cookierules.push(c_rule);
- this.log(DBUG,"Cookie rule "+ c_rule.host+ " " +c_rule.name);
- }
-
- rule_store.rulesets.push(rs);
- rule_store.rulesetsByID[rs.id] = rs;
- rule_store.rulesetsByName[rs.name] = rs;
- },
-
- enumerate: function(dir) {
- // file is the given directory (nsIFile)
- var entries = dir.directoryEntries;
- var ret = [];
- while(entries.hasMoreElements()) {
- var entry = entries.getNext();
- entry.QueryInterface(Components.interfaces.nsIFile);
- ret.push(entry);
- }
- return ret;
- },
-};
-
-
-
-const HTTPSRules = {
- init: function() {
- try {
- this.rulesets = [];
- this.targets = {}; // dict mapping target host pattern -> list of
- // applicable ruleset ids
- this.rulesetsByID = {};
- this.rulesetsByName = {};
- var t1 = new Date().getTime();
- this.checkMixedContentHandling();
- var rulefiles = RuleWriter.enumerate(RuleWriter.getCustomRuleDir());
-
- this.loadTargets();
- this.scanRulefiles(rulefiles);
-
- } catch(e) {
- this.log(DBUG,"Rules Failed: "+e);
- }
- var t2 = new Date().getTime();
- this.log(NOTE,"Loading targets took " + (t2 - t1) / 1000.0 + " seconds");
-
- return;
- },
-
- /**
- * Read and parse the ruleset JSON.
- * Note: This only parses the outer JSON wrapper. Each ruleset is itself an
- * XML string, which will be parsed on an as-needed basis.
- */
- loadTargets: function() {
- var loc = "chrome://https-everywhere/content/rulesets.json";
- var data = RuleWriter.readFromUrl(loc);
- var rules = JSON.parse(data);
- this.targets = rules.targets;
- this.rulesetStrings = rules.rulesetStrings;
- },
-
- checkMixedContentHandling: function() {
- // Firefox 23+ blocks mixed content by default, so rulesets that create
- // mixed content situations should be disabled there
- var appInfo = CC["@mozilla.org/xre/app-info;1"].getService(CI.nsIXULAppInfo);
- var platformVer = appInfo.platformVersion;
- var versionChecker = CC["@mozilla.org/xpcom/version-comparator;1"]
- .getService(CI.nsIVersionComparator);
- var prefs = Components.classes["@mozilla.org/preferences-service;1"]
- .getService(Components.interfaces.nsIPrefService).getBranch("");
-
-
- // If mixed content is present and enabled, and the user hasn't opted to enable
- // mixed content triggering rules, leave them out. Otherwise add them in.
- if(versionChecker.compare(appInfo.version, "23.0a1") >= 0
- && prefs.getBoolPref("security.mixed_content.block_active_content")
- && !prefs.getBoolPref("extensions.https_everywhere.enable_mixed_rulesets")) {
- this.log(INFO, "Not activating rules that trigger mixed content errors.");
- this.localPlatformRegexp = new RegExp("firefox");
- } else {
- this.log(INFO, "Activating rules that would normally trigger mixed content");
- this.localPlatformRegexp = new RegExp("(firefox|mixedcontent)");
- }
- },
-
- scanRulefiles: function(rulefiles) {
- var i = 0;
- var r = null;
- for(i = 0; i < rulefiles.length; ++i) {
- try {
- this.log(DBUG,"Loading ruleset file: "+rulefiles[i].path);
- var ruleset_id = "custom_" + i;
- RuleWriter.rulesetFromFile(rulefiles[i], this, ruleset_id);
- } catch(e) {
- this.log(WARN, "Error in ruleset file: " + e);
- if (e.lineNumber)
- this.log(WARN, "(line number: " + e.lineNumber + ")");
- }
- }
- },
-
- resetRulesetsToDefaults: function() {
- // Callable from within the prefs UI and also for cleaning up buggy
- // configurations...
- for (var i in this.rulesets) {
- this.rulesets[i].clear();
- }
- },
-
-
- rewrittenURI: function(alist, input_uri) {
- // This function oversees the task of working out if a uri should be
- // rewritten, what it should be rewritten to, and recordkeeping of which
- // applicable rulesets are and aren't active. Previously this returned
- // the new uri if there was a rewrite. Now it returns a JS object with a
- // newuri attribute and an applied_ruleset attribute (or null if there's
- // no rewrite).
- var i = 0;
- userpass_present = false; // Global so that sanitiseURI can tweak it.
- // Why does JS have no tuples, again?
- var blob = {}; blob.newuri = null;
- if (!alist) this.log(DBUG, "No applicable list rewriting " + input_uri.spec);
- this.log(DBUG, "Processing " + input_uri.spec);
-
- var uri = this.sanitiseURI(input_uri);
-
- // Get the list of rulesets that target this host
- try {
- var rs = this.potentiallyApplicableRulesets(uri.host);
- } catch(e) {
- this.log(NOTE, 'Could not check applicable rules for '+uri.spec + '\n'+e);
- return null;
- }
-
- // ponder each potentially applicable ruleset, working out if it applies
- // and recording it as active/inactive/moot/breaking in the applicable list
- for (i = 0; i < rs.length; ++i) {
- if (!rs[i].active) {
- if (alist && rs[i].wouldMatch(uri, alist))
- alist.inactive_rule(rs[i]);
- continue;
- }
- blob.newuri = rs[i].transformURI(uri);
- if (blob.newuri) {
- if (alist) {
- if (uri.spec in https_everywhere_blacklist)
- alist.breaking_rule(rs[i]);
- else
- alist.active_rule(rs[i]);
- }
- if (userpass_present) blob.newuri.userPass = input_uri.userPass;
- blob.applied_ruleset = rs[i];
- return blob;
- }
- if (uri.scheme == "https" && alist) {
- // we didn't rewrite but the rule applies to this domain and the
- // requests are going over https
- if (rs[i].wouldMatch(uri, alist)) alist.moot_rule(rs[i]);
- continue;
- }
- }
- return null;
- },
-
- sanitiseURI: function(input_uri) {
- // Rulesets shouldn't try to parse usernames and passwords. If we find
- // those, apply the ruleset without them (and then add them back later).
- // When .userPass is absent, sometimes it is false and sometimes trying
- // to read it raises an exception (probably depending on the URI type).
- var uri = input_uri;
- try {
- if (input_uri.userPass) {
- uri = input_uri.clone();
- userpass_present = true; // tweaking a global in our caller :(
- uri.userPass = null;
- }
- } catch(e) {}
-
- // example.com. is equivalent to example.com
- // example.com.. is invalid, but firefox would load it anyway
- try {
- if (uri.host)
- try {
- var h = uri.host;
- if (h.charAt(h.length - 1) == ".") {
- while (h.charAt(h.length - 1) == ".")
- h = h.slice(0,-1);
- uri = uri.clone();
- uri.host = h;
- }
- } catch(e) {
- this.log(WARN, "Failed to normalise domain: ");
- try {this.log(WARN, input_uri.host);}
- catch(e2) {this.log(WARN, "bang" + e + " & " + e2 + " & "+ input_uri);}
- }
- } catch(e3) {
- this.log(INFO, "uri.host is explosive!");
- try { this.log(INFO, "(" + uri.spec + ")"); } // happens for about: uris and so forth
- catch(e4) { this.log(WARN, "(and unprintable!!!!!!)"); }
- }
- return uri;
- },
-
- setInsert: function(intoList, fromList) {
- // Insert any elements from fromList into intoList, if they are not
- // already there. fromList may be null.
- if (!fromList) return;
- for (var i = 0; i < fromList.length; i++)
- if (intoList.indexOf(fromList[i]) == -1)
- intoList.push(fromList[i]);
- },
-
- // Load a ruleset by numeric id, e.g. 234
- loadRulesetById: function(ruleset_id) {
- RuleWriter.readFromString(this.rulesetStrings[ruleset_id], this, ruleset_id);
- },
-
- // Get all rulesets matching a given target, lazy-loading from DB as necessary.
- rulesetsByTarget: function(target) {
- var rulesetIds = this.targets[target];
-
- var output = [];
- if (rulesetIds) {
- this.log(INFO, "For target " + target + ", found ids " + rulesetIds.toString());
- for (var i = 0; i < rulesetIds.length; i++) {
- var id = rulesetIds[i];
- if (!this.rulesetsByID[id]) {
- this.loadRulesetById(id);
- }
- if (this.rulesetsByID[id]) {
- output.push(this.rulesetsByID[id]);
- }
- }
- } else {
- this.log(DBUG, "For target " + target + ", found no ids in DB");
- }
- return output;
- },
-
- /**
- * Return a list of rulesets that declare targets matching a given hostname.
- * The returned rulesets include those that are disabled for various reasons.
- * This function is only defined for fully-qualified hostnames. Wildcards and
- * cookie-style domain attributes with a leading dot are not permitted.
- * @param host {string}
- * @return {Array.<RuleSet>}
- */
- potentiallyApplicableRulesets: function(host) {
- var i, tmp, t;
- var results = [];
-
- var attempt = function(target) {
- this.setInsert(results, this.rulesetsByTarget(target));
- }.bind(this);
-
- attempt(host);
-
- // Ensure host is well-formed (RFC 1035)
- if (host.indexOf("..") != -1 || host.length > 255) {
- this.log(WARN,"Malformed host passed to potentiallyApplicableRulesets: " + host);
- return null;
- }
-
- // replace each portion of the domain with a * in turn
- var segmented = host.split(".");
- for (i = 0; i < segmented.length; ++i) {
- tmp = segmented[i];
- segmented[i] = "*";
- t = segmented.join(".");
- segmented[i] = tmp;
- attempt(t);
- }
- // now eat away from the left, with *, so that for x.y.z.google.com we
- // check *.z.google.com and *.google.com (we did *.y.z.google.com above)
- for (i = 2; i <= segmented.length - 2; ++i) {
- t = "*." + segmented.slice(i,segmented.length).join(".");
- attempt(t);
- }
- this.log(DBUG,"Potentially applicable rules for " + host + ":");
- for (i = 0; i < results.length; ++i)
- this.log(DBUG, " " + results[i].name);
- return results;
- },
-
- /**
- * If a cookie's domain attribute has a leading dot to indicate it should be
- * sent for all subdomains (".example.com"), return the actual host part (the
- * part after the dot).
- *
- * @param cookieDomain {string} A cookie domain to strip a leading dot from.
- * @return {string} a fully qualified hostname.
- */
- hostFromCookieDomain: function(cookieDomain) {
- if (cookieDomain.length > 0 && cookieDomain[0] == ".") {
- return cookieDomain.slice(1);
- } else {
- return cookieDomain;
- }
- },
-
- /**
- * Check to see if the Cookie object c meets any of our cookierule criteria
- * for being marked as secure.
- *
- * @param applicable_list {ApplicableList} an ApplicableList for record keeping
- * @param c {nsICookie2} The cookie we might secure.
- * @param known_https {boolean} True if the cookie appeared in an HTTPS request and
- * so we know it is okay to mark it secure (assuming a cookierule matches it.
- * TODO(jsha): Double-check that the code calling this actually does that.
- * @return {boolean} True if the cookie in question should have the 'secure'
- * flag set to true.
- */
- shouldSecureCookie: function(applicable_list, c, known_https) {
- this.log(DBUG," rawhost: " + c.rawHost + " name: " + c.name + " host" + c.host);
- var i,j;
- // potentiallyApplicableRulesets is defined on hostnames not cookie-style
- // "domain" attributes, so we strip a leading dot before calling.
- var rs = this.potentiallyApplicableRulesets(this.hostFromCookieDomain(c.host));
- for (i = 0; i < rs.length; ++i) {
- var ruleset = rs[i];
- if (ruleset.active) {
- ruleset.ensureCompiled();
- // Never secure a cookie if this page might be HTTP
- if (!(known_https || this.safeToSecureCookie(c.rawHost))) {
- continue;
- }
- for (j = 0; j < ruleset.cookierules.length; j++) {
- var cr = ruleset.cookierules[j];
- if (cr.host_c.test(c.host) && cr.name_c.test(c.name)) {
- if (applicable_list) applicable_list.active_rule(ruleset);
- this.log(INFO,"Active cookie rule " + ruleset.name);
- return true;
- }
- }
- if (ruleset.cookierules.length > 0 && applicable_list) {
- applicable_list.moot_rule(ruleset);
- }
- } else if (ruleset.cookierules.length > 0) {
- if (applicable_list) {
- applicable_list.inactive_rule(ruleset);
- }
- this.log(INFO,"Inactive cookie rule " + ruleset.name);
- }
- }
- return false;
- },
-
- /**
- * Check if the domain might be being served over HTTP. If so, it isn't
- * safe to secure a cookie! We can't always know this for sure because
- * observing cookie-changed doesn't give us enough context to know the
- * full origin URI. In particular, if cookies are set from Javascript (as
- * opposed to HTTP/HTTPS responses), we don't know what page context that
- * Javascript ran in.
-
- * First, if there are any redirect loops on this domain, don't secure
- * cookies. XXX This is not a very satisfactory heuristic. Sometimes we
- * would want to secure the cookie anyway, because the URLs that loop are
- * not authenticated or not important. Also by the time the loop has been
- * observed and the domain blacklisted, a cookie might already have been
- * flagged as secure.
- *
- * @param domain {string} The cookie's 'domain' attribute.
- * @return {boolean} True if it's safe to secure a cookie on that domain.
- */
- safeToSecureCookie: function(domain) {
- if (domain in https_blacklist_domains) {
- this.log(INFO, "cookies for " + domain + "blacklisted");
- return false;
- }
-
- // If we passed that test, make up a random URL on the domain, and see if
- // we would HTTPSify that.
- try {
- var nonce_path = "/" + Math.random().toString();
- nonce_path = nonce_path + nonce_path;
- var test_uri = "http://" + domain + nonce_path;
- } catch (e) {
- this.log(WARN, "explosion in safeToSecureCookie for " + domain + "\n"
- + "(" + e + ")");
- return false;
- }
-
- this.log(DBUG, "Testing securecookie applicability with " + test_uri);
- // potentiallyApplicableRulesets is defined on hostnames not cookie-style
- // "domain" attributes, so we strip a leading dot before calling.
- var rs = this.potentiallyApplicableRulesets(this.hostFromCookieDomain(domain));
- for (var i = 0; i < rs.length; ++i) {
- if (!rs[i].active) continue;
- var rewrite = rs[i].apply(test_uri);
- if (rewrite) {
- this.log(DBUG, "Safe to secure cookie for " + test_uri + ": " + rewrite);
- return true;
- }
- }
- this.log(DBUG, "Unsafe to secure cookie for " + test_uri);
- return false;
- }
-};
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