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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 "nsISupports.idl"
#include "nsIContentPolicy.idl"
interface nsICacheInfoChannel;
interface nsIChannel;
interface nsIConsoleReportCollector;
interface nsIInputStream;
interface nsIOutputStream;
interface nsIURI;
%{C++
#include "nsContentUtils.h"
#include "nsIChannel.h"
#include "nsIConsoleReportCollector.h"
#include "nsILoadInfo.h"
namespace mozilla {
class TimeStamp;
namespace dom {
class ChannelInfo;
}
}
%}
native TimeStamp(mozilla::TimeStamp);
[ptr] native ChannelInfo(mozilla::dom::ChannelInfo);
/**
* Interface allowing the nsIInterceptedChannel to callback when it is
* done reading from the body stream.
*/
[scriptable, uuid(51039eb6-bea0-40c7-b523-ccab56cc4fde)]
interface nsIInterceptedBodyCallback : nsISupports
{
void bodyComplete(in nsresult aRv);
};
/**
* Interface to allow implementors of nsINetworkInterceptController to control the behaviour
* of intercepted channels without tying implementation details of the interception to
* the actual channel. nsIInterceptedChannel is expected to be implemented by objects
* which do not implement nsIChannel.
*/
[scriptable, uuid(f4b82975-6a86-4cc4-87fe-9a1fd430c86d)]
interface nsIInterceptedChannel : nsISupports
{
/**
* Instruct a channel that has been intercepted to continue with the original
* network request.
*
* For our mitigations, we support this reset triggering "bypass" mode which
* results in the resulting client not being controlled.
*/
void resetInterception(in boolean bypass);
/**
* Set the status and reason for the forthcoming synthesized response.
* Multiple calls overwrite existing values.
*/
void synthesizeStatus(in uint16_t status, in ACString reason);
/**
* Attach a header name/value pair to the forthcoming synthesized response.
* Overwrites any existing header value.
*/
void synthesizeHeader(in ACString name, in ACString value);
/**
* Instruct a channel that has been intercepted that a response is
* starting to be synthesized. No further header modification is allowed
* after this point. There are a few parameters:
* - A body stream may be optionally passed. If nullptr, then an
* empty body is assumed.
* - A callback may be optionally passed. It will be invoked
* when the body is complete. For a nullptr body this may be
* synchronously on the current thread. Otherwise it will be invoked
* asynchronously on the current thread.
* - A cacheInfoChannel may be optionally passed. If the body stream is
* from alternative data cache, this cacheInfoChannel provides needed
* cache information.
* - The caller may optionally pass a spec for a URL that this response
* originates from; an empty string will cause the original
* intercepted request's URL to be used instead.
* - The responseRedirected flag is false will cause the channel do an
* internal redirect when the original intercepted reauest's URL is
* different from the response's URL. The flag is true will cause the
* chaanel do a non-internal redirect when the URLs are different.
*/
void startSynthesizedResponse(in nsIInputStream body,
in nsIInterceptedBodyCallback callback,
in nsICacheInfoChannel channel,
in ACString finalURLSpec,
in bool responseRedirected);
/**
* Instruct a channel that has been intercepted that response synthesis
* has completed and all outstanding resources can be closed.
*/
void finishSynthesizedResponse();
/**
* Cancel the pending intercepted request.
* @return NS_ERROR_FAILURE if the response has already been synthesized or
* the original request has been instructed to continue.
*/
void cancelInterception(in nsresult status);
/**
* The underlying channel object that was intercepted.
*/
readonly attribute nsIChannel channel;
/**
* The URL of the underlying channel object, corrected for a potential
* secure upgrade.
*/
readonly attribute nsIURI secureUpgradedChannelURI;
/**
* This method allows to override the channel info for the channel.
*/
[noscript]
void setChannelInfo(in ChannelInfo channelInfo);
/**
* Get the internal load type from the underlying channel.
*/
[noscript]
readonly attribute nsContentPolicyType internalContentPolicyType;
[noscript]
readonly attribute nsIConsoleReportCollector consoleReportCollector;
[noscript]
void SetFetchHandlerStart(in TimeStamp aTimeStamp);
[noscript]
void SetFetchHandlerFinish(in TimeStamp aTimeStamp);
/**
* This method indicates if the ServiceWorker Interception is reset to
* network or not.
*/
[noscript]
bool GetIsReset();
%{C++
already_AddRefed<nsIConsoleReportCollector>
GetConsoleReportCollector()
{
nsCOMPtr<nsIConsoleReportCollector> reporter;
GetConsoleReportCollector(getter_AddRefs(reporter));
return reporter.forget();
}
void
GetSubresourceTimeStampKey(nsIChannel* aChannel, nsACString& aKey)
{
if (!nsContentUtils::IsNonSubresourceRequest(aChannel)) {
nsCOMPtr<nsILoadInfo> loadInfo = aChannel->LoadInfo();
switch(loadInfo->InternalContentPolicyType()) {
case nsIContentPolicy::TYPE_SCRIPT:
case nsIContentPolicy::TYPE_INTERNAL_SCRIPT:
case nsIContentPolicy::TYPE_INTERNAL_SCRIPT_PRELOAD:
case nsIContentPolicy::TYPE_INTERNAL_MODULE:
case nsIContentPolicy::TYPE_INTERNAL_MODULE_PRELOAD:
case nsIContentPolicy::TYPE_INTERNAL_WORKER_IMPORT_SCRIPTS:
case nsIContentPolicy::TYPE_INTERNAL_WORKER_STATIC_MODULE: {
aKey = "subresource-script"_ns;
break;
}
case nsIContentPolicy::TYPE_IMAGE:
case nsIContentPolicy::TYPE_INTERNAL_IMAGE:
case nsIContentPolicy::TYPE_INTERNAL_IMAGE_PRELOAD:
case nsIContentPolicy::TYPE_INTERNAL_IMAGE_FAVICON: {
aKey = "subresource-image"_ns;
break;
}
case nsIContentPolicy::TYPE_STYLESHEET:
case nsIContentPolicy::TYPE_INTERNAL_STYLESHEET:
case nsIContentPolicy::TYPE_INTERNAL_STYLESHEET_PRELOAD: {
aKey = "subresource-stylesheet"_ns;
break;
}
default: {
aKey = "subresource-other"_ns;
break;
}
}
}
}
bool
IsReset()
{
bool result;
GetIsReset(&result);
return result;
}
%}
/**
* Allow the ServiceWorkerManager to set an RAII-style object on the
* intercepted channel that should be released once the channel is
* torn down.
*/
[noscript]
void setReleaseHandle(in nsISupports aHandle);
};
/**
* Interface to allow consumers to attach themselves to a channel's
* notification callbacks/loadgroup and determine if a given channel
* request should be intercepted before any network request is initiated.
*/
[scriptable, uuid(70d2b4fe-a552-48cd-8d93-1d8437a56b53)]
interface nsINetworkInterceptController : nsISupports
{
/**
* Returns true if a channel should avoid initiating any network
* requests until specifically instructed to do so.
*
* @param aURI The URI to be loaded. Note, this may differ from
* the channel's current URL in some cases.
* @param aChannel The channel that may be intercepted. It will
* be in the state prior to calling OnStartRequest().
*/
bool shouldPrepareForIntercept(in nsIURI aURI, in nsIChannel aChannel);
/**
* Notification when a given intercepted channel is prepared to accept a synthesized
* response via the provided stream.
*
* @param aChannel the controlling interface for a channel that has been intercepted
*/
void channelIntercepted(in nsIInterceptedChannel aChannel);
};
|