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
|
/* -*- Mode: C++; tab-width: 8; 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 "ExternalHelperAppChild.h"
#include "mozilla/net/ChannelDiverterChild.h"
#include "nsIDivertableChannel.h"
#include "nsIInputStream.h"
#include "nsIFTPChannel.h"
#include "nsIRequest.h"
#include "nsIResumableChannel.h"
#include "nsNetUtil.h"
namespace mozilla {
namespace dom {
NS_IMPL_ISUPPORTS(ExternalHelperAppChild,
nsIStreamListener,
nsIRequestObserver)
ExternalHelperAppChild::ExternalHelperAppChild()
: mStatus(NS_OK)
{
}
ExternalHelperAppChild::~ExternalHelperAppChild()
{
}
//-----------------------------------------------------------------------------
// nsIStreamListener
//-----------------------------------------------------------------------------
NS_IMETHODIMP
ExternalHelperAppChild::OnDataAvailable(nsIRequest *request,
nsISupports *ctx,
nsIInputStream *input,
uint64_t offset,
uint32_t count)
{
if (NS_FAILED(mStatus))
return mStatus;
nsCString data;
nsresult rv = NS_ReadInputStreamToString(input, data, count);
if (NS_FAILED(rv))
return rv;
if (!SendOnDataAvailable(data, offset, count))
return NS_ERROR_UNEXPECTED;
return NS_OK;
}
//////////////////////////////////////////////////////////////////////////////
// nsIRequestObserver
//////////////////////////////////////////////////////////////////////////////
NS_IMETHODIMP
ExternalHelperAppChild::OnStartRequest(nsIRequest *request, nsISupports *ctx)
{
nsCOMPtr<nsIDivertableChannel> divertable = do_QueryInterface(request);
if (divertable) {
return DivertToParent(divertable, request);
}
nsresult rv = mHandler->OnStartRequest(request, ctx);
NS_ENSURE_SUCCESS(rv, NS_ERROR_UNEXPECTED);
nsCString entityID;
nsCOMPtr<nsIResumableChannel> resumable(do_QueryInterface(request));
if (resumable) {
resumable->GetEntityID(entityID);
}
SendOnStartRequest(entityID);
return NS_OK;
}
NS_IMETHODIMP
ExternalHelperAppChild::OnStopRequest(nsIRequest *request,
nsISupports *ctx,
nsresult status)
{
// mHandler can be null if we diverted the request to the parent
if (mHandler) {
nsresult rv = mHandler->OnStopRequest(request, ctx, status);
SendOnStopRequest(status);
NS_ENSURE_SUCCESS(rv, NS_ERROR_UNEXPECTED);
}
return NS_OK;
}
nsresult
ExternalHelperAppChild::DivertToParent(nsIDivertableChannel *divertable,
nsIRequest *request)
{
// nsIDivertable must know about content conversions before being diverted.
MOZ_ASSERT(mHandler);
mHandler->MaybeApplyDecodingForExtension(request);
mozilla::net::ChannelDiverterChild *diverter = nullptr;
nsresult rv = divertable->DivertToParent(&diverter);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
MOZ_ASSERT(diverter);
if (SendDivertToParentUsing(diverter)) {
mHandler->DidDivertRequest(request);
mHandler = nullptr;
return NS_OK;
}
return NS_ERROR_FAILURE;
}
bool
ExternalHelperAppChild::RecvCancel(const nsresult& aStatus)
{
mStatus = aStatus;
return true;
}
} // namespace dom
} // namespace mozilla
|
