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
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "CookieCommons.h"
#include "CookieLogging.h"
#include "mozilla/net/CookieService.h"
#include "mozilla/net/CookieServiceParent.h"
#include "mozilla/net/NeckoParent.h"
#include "mozilla/ipc/URIUtils.h"
#include "mozilla/StoragePrincipalHelper.h"
#include "mozIThirdPartyUtil.h"
#include "nsArrayUtils.h"
#include "nsIChannel.h"
#include "nsIEffectiveTLDService.h"
#include "nsNetCID.h"
#include "nsMixedContentBlocker.h"
using namespace mozilla::ipc;
namespace mozilla {
namespace net {
CookieServiceParent::CookieServiceParent() {
// Instantiate the cookieservice via the service manager, so it sticks around
// until shutdown.
nsCOMPtr<nsICookieService> cs = do_GetService(NS_COOKIESERVICE_CONTRACTID);
// Get the CookieService instance directly, so we can call internal methods.
mCookieService = CookieService::GetSingleton();
NS_ASSERTION(mCookieService, "couldn't get nsICookieService");
mTLDService = do_GetService(NS_EFFECTIVETLDSERVICE_CONTRACTID);
MOZ_ALWAYS_TRUE(mTLDService);
mProcessingCookie = false;
}
void CookieServiceParent::RemoveBatchDeletedCookies(nsIArray* aCookieList) {
uint32_t len = 0;
aCookieList->GetLength(&len);
OriginAttributes attrs;
CookieStruct cookieStruct;
nsTArray<CookieStruct> cookieStructList;
nsTArray<OriginAttributes> attrsList;
for (uint32_t i = 0; i < len; i++) {
nsCOMPtr<nsICookie> xpcCookie = do_QueryElementAt(aCookieList, i);
const auto& cookie = xpcCookie->AsCookie();
attrs = cookie.OriginAttributesRef();
cookieStruct = cookie.ToIPC();
// Child only needs to know HttpOnly cookies exists, not its value
// Same for Secure cookies going to a process for an insecure site.
if (cookie.IsHttpOnly() || !InsecureCookieOrSecureOrigin(cookie)) {
cookieStruct.value() = "";
}
cookieStructList.AppendElement(cookieStruct);
attrsList.AppendElement(attrs);
}
Unused << SendRemoveBatchDeletedCookies(cookieStructList, attrsList);
}
void CookieServiceParent::RemoveAll() { Unused << SendRemoveAll(); }
void CookieServiceParent::RemoveCookie(const Cookie& cookie) {
const OriginAttributes& attrs = cookie.OriginAttributesRef();
CookieStruct cookieStruct = cookie.ToIPC();
// Child only needs to know HttpOnly cookies exists, not its value
// Same for Secure cookies going to a process for an insecure site.
if (cookie.IsHttpOnly() || !InsecureCookieOrSecureOrigin(cookie)) {
cookieStruct.value() = "";
}
Unused << SendRemoveCookie(cookieStruct, attrs);
}
void CookieServiceParent::AddCookie(const Cookie& cookie) {
const OriginAttributes& attrs = cookie.OriginAttributesRef();
CookieStruct cookieStruct = cookie.ToIPC();
// Child only needs to know HttpOnly cookies exists, not its value
// Same for Secure cookies going to a process for an insecure site.
if (cookie.IsHttpOnly() || !InsecureCookieOrSecureOrigin(cookie)) {
cookieStruct.value() = "";
}
Unused << SendAddCookie(cookieStruct, attrs);
}
bool CookieServiceParent::ContentProcessHasCookie(const Cookie& cookie) {
nsCString baseDomain;
// CookieStorage notifications triggering this won't fail to get base domain
MOZ_ALWAYS_SUCCEEDS(CookieCommons::GetBaseDomainFromHost(
mTLDService, cookie.Host(), baseDomain));
CookieKey cookieKey(baseDomain, cookie.OriginAttributesRef());
return mCookieKeysInContent.MaybeGet(cookieKey).isSome();
}
bool CookieServiceParent::InsecureCookieOrSecureOrigin(const Cookie& cookie) {
nsCString baseDomain;
// CookieStorage notifications triggering this won't fail to get base domain
MOZ_ALWAYS_SUCCEEDS(CookieCommons::GetBaseDomainFromHost(
mTLDService, cookie.Host(), baseDomain));
// cookie is insecure or cookie is associated with a secure-origin process
CookieKey cookieKey(baseDomain, cookie.OriginAttributesRef());
if (Maybe<bool> allowSecure = mCookieKeysInContent.MaybeGet(cookieKey)) {
return (!cookie.IsSecure() || *allowSecure);
}
return false;
}
void CookieServiceParent::TrackCookieLoad(nsIChannel* aChannel) {
nsCOMPtr<nsIURI> uri;
aChannel->GetURI(getter_AddRefs(uri));
nsCOMPtr<nsILoadInfo> loadInfo = aChannel->LoadInfo();
OriginAttributes attrs = loadInfo->GetOriginAttributes();
bool isSafeTopLevelNav = CookieCommons::IsSafeTopLevelNav(aChannel);
bool hadCrossSiteRedirects = false;
bool isSameSiteForeign =
CookieCommons::IsSameSiteForeign(aChannel, uri, &hadCrossSiteRedirects);
StoragePrincipalHelper::PrepareEffectiveStoragePrincipalOriginAttributes(
aChannel, attrs);
nsCOMPtr<mozIThirdPartyUtil> thirdPartyUtil;
thirdPartyUtil = do_GetService(THIRDPARTYUTIL_CONTRACTID);
uint32_t rejectedReason = 0;
ThirdPartyAnalysisResult result = thirdPartyUtil->AnalyzeChannel(
aChannel, false, nullptr, nullptr, &rejectedReason);
UpdateCookieInContentList(uri, attrs);
// Send matching cookies to Child.
nsTArray<Cookie*> foundCookieList;
mCookieService->GetCookiesForURI(
uri, aChannel, result.contains(ThirdPartyAnalysis::IsForeign),
result.contains(ThirdPartyAnalysis::IsThirdPartyTrackingResource),
result.contains(ThirdPartyAnalysis::IsThirdPartySocialTrackingResource),
result.contains(ThirdPartyAnalysis::IsStorageAccessPermissionGranted),
rejectedReason, isSafeTopLevelNav, isSameSiteForeign,
hadCrossSiteRedirects, false, true, attrs, foundCookieList);
nsTArray<CookieStruct> matchingCookiesList;
SerializeCookieList(foundCookieList, matchingCookiesList, uri);
Unused << SendTrackCookiesLoad(matchingCookiesList, attrs);
}
// we append outgoing cookie info into a list here so the ContentParent can
// filter cookies passing to unnecessary ContentProcesses
void CookieServiceParent::UpdateCookieInContentList(
nsIURI* uri, const OriginAttributes& originAttrs) {
nsCString baseDomain;
bool requireAHostMatch = false;
// prevent malformed urls from being added to the cookie list
if (NS_WARN_IF(NS_FAILED(CookieCommons::GetBaseDomain(
mTLDService, uri, baseDomain, requireAHostMatch)))) {
return;
}
CookieKey cookieKey(baseDomain, originAttrs);
bool& allowSecure = mCookieKeysInContent.LookupOrInsert(cookieKey, false);
allowSecure =
allowSecure || nsMixedContentBlocker::IsPotentiallyTrustworthyOrigin(uri);
}
// static
void CookieServiceParent::SerializeCookieList(
const nsTArray<Cookie*>& aFoundCookieList,
nsTArray<CookieStruct>& aCookiesList, nsIURI* aHostURI) {
for (uint32_t i = 0; i < aFoundCookieList.Length(); i++) {
Cookie* cookie = aFoundCookieList.ElementAt(i);
CookieStruct* cookieStruct = aCookiesList.AppendElement();
*cookieStruct = cookie->ToIPC();
// clear http-only cookie values
if (cookie->IsHttpOnly()) {
// Value only needs to exist if an HttpOnly cookie exists.
cookieStruct->value() = "";
}
// clear secure cookie values in insecure context
bool potentiallyTurstworthy =
nsMixedContentBlocker::IsPotentiallyTrustworthyOrigin(aHostURI);
if (cookie->IsSecure() && !potentiallyTurstworthy) {
cookieStruct->value() = "";
}
}
}
IPCResult CookieServiceParent::RecvPrepareCookieList(
nsIURI* aHost, const bool& aIsForeign,
const bool& aIsThirdPartyTrackingResource,
const bool& aIsThirdPartySocialTrackingResource,
const bool& aStorageAccessPermissionGranted,
const uint32_t& aRejectedReason, const bool& aIsSafeTopLevelNav,
const bool& aIsSameSiteForeign, const bool& aHadCrossSiteRedirects,
const OriginAttributes& aAttrs) {
// Send matching cookies to Child.
if (!aHost) {
return IPC_FAIL(this, "aHost must not be null");
}
// we append outgoing cookie info into a list here so the ContentParent can
// filter cookies that do not need to go to certain ContentProcesses
UpdateCookieInContentList(aHost, aAttrs);
nsTArray<Cookie*> foundCookieList;
// Note: passing nullptr as aChannel to GetCookiesForURI() here is fine since
// this argument is only used for proper reporting of cookie loads, but the
// child process already does the necessary reporting in this case for us.
mCookieService->GetCookiesForURI(
aHost, nullptr, aIsForeign, aIsThirdPartyTrackingResource,
aIsThirdPartySocialTrackingResource, aStorageAccessPermissionGranted,
aRejectedReason, aIsSafeTopLevelNav, aIsSameSiteForeign,
aHadCrossSiteRedirects, false, true, aAttrs, foundCookieList);
nsTArray<CookieStruct> matchingCookiesList;
SerializeCookieList(foundCookieList, matchingCookiesList, aHost);
Unused << SendTrackCookiesLoad(matchingCookiesList, aAttrs);
return IPC_OK();
}
void CookieServiceParent::ActorDestroy(ActorDestroyReason aWhy) {
// Nothing needed here. Called right before destructor since this is a
// non-refcounted class.
}
IPCResult CookieServiceParent::RecvSetCookies(
const nsCString& aBaseDomain, const OriginAttributes& aOriginAttributes,
nsIURI* aHost, bool aFromHttp, const nsTArray<CookieStruct>& aCookies) {
if (!mCookieService) {
return IPC_OK();
}
// Deserialize URI. Having a host URI is mandatory and should always be
// provided by the child; thus we consider failure fatal.
if (!aHost) {
return IPC_FAIL(this, "aHost must not be null");
}
// We set this to true while processing this cookie update, to make sure
// we don't send it back to the same content process.
mProcessingCookie = true;
bool ok = mCookieService->SetCookiesFromIPC(aBaseDomain, aOriginAttributes,
aHost, aFromHttp, aCookies);
mProcessingCookie = false;
return ok ? IPC_OK() : IPC_FAIL(this, "Invalid cookie received.");
}
} // namespace net
} // namespace mozilla
|