Skip to content
Navigation Menu
{{ message }}
forked from EFForg/https-everywhere
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathHTTPS.js
More file actions
320 lines (272 loc) · 10.5 KB
/
Copy pathHTTPS.js
File metadata and controls
320 lines (272 loc) · 10.5 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
INCLUDE('Cookie');
var securityService = CC['@mozilla.org/ssservice;1']
.getService(CI.nsISiteSecurityService);
// Hack. We only need the part of the policystate that tracks content
// policy loading.
const PolicyState = {
attach: function(channel) {
IOUtil.attachToChannel(channel, "httpseverywhere.policyLoaded", true);
},
extract: function(channel) {
var res = IOUtil.extractFromChannel(channel,
"httpseverywhere.policyLoaded", true);
return res;
},
};
const HTTPS = {
ready: false,
secureCookies: true,
secureCookiesExceptions: null,
secureCookiesForced: null,
httpsForced: null,
httpsForcedExceptions: null,
httpsRewrite: null,
/**
* Given a channel and a list of potentially applicable rules,
* redirect or abort a request if appropriate.
*
* @param {RuleSet[]} applicable_list A list of potentially applicable rules
* (i.e. those that match on a hostname basis).
* @param {nsIChannel} channel The channel to be manipulated.
* @param {boolean} httpNowhereEnabled Whether to abort non-https requests.
* @returns {boolean} True if the request was redirected; false if it was
* untouched or aborted.
*/
replaceChannel: function(applicable_list, channel, httpNowhereEnabled) {
var blob = HTTPSRules.rewrittenURI(applicable_list, channel.URI.clone());
var isSTS = securityService.isSecureURI(
CI.nsISiteSecurityService.HEADER_HSTS, channel.URI, 0);
if (blob === null) {
// Abort insecure requests if HTTP Nowhere is on
if (httpNowhereEnabled && channel.URI.schemeIs("http") && !isSTS) {
IOUtil.abort(channel);
}
return false; // no rewrite
}
var uri = blob.newuri;
if (!uri) this.log(WARN, "OH NO BAD ARGH\nARGH");
// Abort downgrading if HTTP Nowhere is on
if (httpNowhereEnabled && uri.schemeIs("http")) {
IOUtil.abort(channel);
}
var c2 = channel.QueryInterface(CI.nsIHttpChannel);
this.log(DBUG, channel.URI.spec+": Redirection limit is " + c2.redirectionLimit);
// XXX This used to be (c2.redirectionLimit == 1), but that's very
// inefficient in a case (eg amazon) where this may happen A LOT.
// Rather than number like 10, we should use the starting value
// in network.http.redirection-limit minus some counter
if (c2.redirectionLimit < 10) {
this.log(WARN, "Redirection loop trying to set HTTPS on:\n " +
channel.URI.spec +"\n(falling back to HTTP)");
if (!blob.applied_ruleset) {
this.log(WARN,"Blacklisting rule for: " + channel.URI.spec);
https_everywhere_blacklist[channel.URI.spec] = true;
}
https_everywhere_blacklist[channel.URI.spec] = blob.applied_ruleset;
var domain = null;
try { domain = channel.URI.host; } catch (e) {}
if (domain) https_blacklist_domains[domain] = true;
if (httpNowhereEnabled && channel.URI.schemeIs("http")) {
IOUtil.abort(channel);
}
return false;
}
// Check for the new internal redirect API. If it exists, use it.
if (!"redirectTo" in channel) {
this.log(WARN, "nsIHTTPChannel.redirectTo API is missing. This version of HTTPS Everywhere is useless!!!!\n!!!\n");
return false;
}
this.log(INFO, "Using nsIHttpChannel.redirectTo: " + channel.URI.spec + " -> " + uri.spec);
try {
channel.redirectTo(uri);
return true;
} catch(e) {
// This should not happen. We should only get exceptions if
// the channel was already open.
this.log(WARN, "Exception on nsIHttpChannel.redirectTo: "+e);
// Don't return: Fallback to NoScript ChannelReplacement.js
}
this.log(WARN,"Aborting redirection " + channel.name + ", should be HTTPS!");
IOUtil.abort(channel);
return false;
},
// getApplicableListForContext was remove along with the nsIContentPolicy
// bindings and the and forceURI path that used them.
onCrossSiteRequest: function(channel, origin, browser, rw) {
try {
this.handleCrossSiteCookies(channel, origin, browser);
} catch(e) {
this.log(WARN, e + " --- " + e.stack);
}
},
registered: false,
handleSecureCookies: function(req) {
try {
req = req.QueryInterface(CI.nsIHttpChannel);
} catch(e) {
this.log(WARN, "Request is not an nsIHttpChannel: " + req);
return;
}
if (!this.secureCookies) return;
var uri = req.URI;
if (!uri) {
this.log(WARN,"No URI inside request " +req);
return;
}
//this.log(DBUG, "Cookie hunting in " + uri.spec);
var alist = HTTPSEverywhere.instance.getApplicableListForChannel(req);
if (!alist)
this.log(INFO, "No alist for cookies for "+(req.URI) ? req.URI.spec : "???");
if (uri.schemeIs("https")) {
var host = uri.host;
try {
var cookies = req.getResponseHeader("Set-Cookie");
} catch(mayHappen) {
//this.log(VERB,"Exception hunting Set-Cookie in headers: " + mayHappen);
return;
}
if (!cookies) return;
var c;
for each (var cs in cookies.split("\n")) {
this.log(DBUG, "Examining cookie: ");
c = new Cookie(cs, host);
if (!c.secure && HTTPSRules.shouldSecureCookie(alist, c, true)) {
this.log(INFO, "Securing cookie: " + c.domain + " " + c.name);
c.secure = true;
req.setResponseHeader("Set-Cookie", c.source + ";Secure", true);
}
}
}
},
handleInsecureCookie: function(c) {
if (HTTPSRules.shouldSecureCookie(null, c, false)) {
this.log(INFO, "Securing cookie from event: " + c.host + " " + c.name);
var cookieManager = Components.classes["@mozilla.org/cookiemanager;1"]
.getService(Components.interfaces.nsICookieManager2);
//some braindead cookies apparently use umghzabilliontrabilions
var expiry = Math.min(c.expiry, Math.pow(2,31));
cookieManager.remove(c.host, c.name, c.path, false);
cookieManager.add(c.host, c.path, c.name, c.value, true, c.isHTTPOnly, c.isSession, expiry);
}
},
handleCrossSiteCookies: function(req, origin, browser) {
var unsafeCookies = this.getUnsafeCookies(browser);
if (!unsafeCookies) return;
var uri = req.URI;
var dscheme = uri.scheme;
var oparts = origin && origin.match(/^(https?):\/\/([^\/:]+).*?(\/.*)/);
if (!(oparts && /https?/.test(dscheme))) return;
var oscheme = oparts[1];
if (oscheme == dscheme) return; // we want to check only cross-scheme requests
var dsecure = dscheme == "https";
if (dsecure && !ns.getPref("secureCookies.recycle", false)) return;
var dhost = uri.host;
var dpath = uri.path;
var ohost = oparts[2];
var opath = oparts[3];
var ocookieCount = 0, totCount = 0;
var dcookies = [];
var c;
for (var k in unsafeCookies) {
c = unsafeCookies[k];
if (!c.exists()) {
delete unsafeCookies[k];
} else {
totCount++;
if (c.belongsTo(dhost, dpath) && c.secure != dsecure) { // either secure on http or not secure on https
dcookies.push(c);
}
if (c.belongsTo(ohost, opath)) {
ocookieCount++;
}
}
}
if (!totCount) {
this.setUnsafeCookies(browser, null);
return;
}
// We want to "desecurify" cookies only if cross-navigation to unsafe
// destination originates from a site sharing some secured cookies
if (ocookieCount == 0 && !dsecure || !dcookies.length) return;
if (dsecure) {
this.log(WARN,"Detected cross-site navigation with secured cookies: " + origin + " -> " + uri.spec);
} else {
this.log(WARN,"Detected unsafe navigation with NoScript-secured cookies: " + origin + " -> " + uri.spec);
this.log(WARN,uri.prePath + " cannot support secure cookies because it does not use HTTPS. Consider forcing HTTPS for " + uri.host + " in NoScript's Advanced HTTPS options panel.");
}
var cs = CC['@mozilla.org/cookieService;1'].getService(CI.nsICookieService).getCookieString(uri, req);
for each (c in dcookies) {
c.secure = dsecure;
c.save();
this.log(WARN,"Toggled secure flag on " + c);
}
if (cs) {
dcookies.push.apply(
dcookies, cs.split(/\s*;\s*/).map(function(cs) { var nv = cs.split("="); return { name: nv.shift(), value: nv.join("=") }; })
.filter(function(c) { return dcookies.every(function(x) { return x.name != c.name; }); })
);
}
cs = dcookies.map(function(c) { return c.name + "=" + c.value; }).join("; ");
this.log(WARN,"Sending Cookie for " + dhost + ": " + cs);
req.setRequestHeader("Cookie", cs, false); // "false" because merge syntax breaks Cookie header
},
cookiesCleanup: function(refCookie) {
var downgraded = [];
var ignored = this.secureCookiesExceptions;
var disabled = !this.secureCookies;
var bi = DOM.createBrowserIterator();
var unsafe, k, c, total, deleted;
for (var browser; browser = bi.next();) {
unsafe = this.getUnsafeCookies(browser);
if (!unsafe) continue;
total = deleted = 0;
for (k in unsafe) {
c = unsafe[k];
total++;
if (disabled || (refCookie ? c.belongsTo(refCookie.host) : ignored && ignored.test(c.rawHost))) {
if (c.exists()) {
this.log(WARN,"Cleaning Secure flag from " + c);
c.secure = false;
c.save();
}
delete unsafe[k];
deleted++;
}
}
if (total == deleted) this.setUnsafeCookies(browser, null);
if (!this.cookiesPerTab) break;
}
},
get cookiesPerTab() {
return ns.getPref("secureCookies.perTab", false);
},
_globalUnsafeCookies: {},
getUnsafeCookies: function(browser) {
return this.cookiesPerTab
? browser && ns.getExpando(browser, "unsafeCookies")
: this._globalUnsafeCookies;
},
setUnsafeCookies: function(browser, value) {
return this.cookiesPerTab
? browser && ns.setExpando(browser, "unsafeCookies", value)
: this._globalUnsafeCookies = value;
},
_getParent: function(req, w) {
return w && w.frameElement || DOM.findBrowserForNode(w || IOUtil.findWindow(req));
}
};
(function () {
["secureCookies", "secureCookiesExceptions", "secureCookiesForced"].forEach(function(p) {
var v = HTTPS[p];
delete HTTPS[p];
HTTPS.__defineGetter__(p, function() {
return v;
});
HTTPS.__defineSetter__(p, function(n) {
v = n;
if (HTTPS.ready) HTTPS.cookiesCleanup();
return v;
});
});
})();
HTTPS.ready = true;
You can’t perform that action at this time.