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1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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2 /* vim: set ts=2 et sw=2 tw=80: */ |
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3 /* This Source Code Form is subject to the terms of the Mozilla Public |
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4 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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6 |
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7 #include "ExternalHelperAppChild.h" |
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8 #include "mozilla/net/ChannelDiverterChild.h" |
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9 #include "nsIDivertableChannel.h" |
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10 #include "nsIInputStream.h" |
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11 #include "nsIFTPChannel.h" |
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12 #include "nsIRequest.h" |
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13 #include "nsIResumableChannel.h" |
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14 #include "nsNetUtil.h" |
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15 |
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16 namespace mozilla { |
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17 namespace dom { |
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18 |
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19 NS_IMPL_ISUPPORTS(ExternalHelperAppChild, |
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20 nsIStreamListener, |
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21 nsIRequestObserver) |
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22 |
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23 ExternalHelperAppChild::ExternalHelperAppChild() |
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24 : mStatus(NS_OK) |
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25 { |
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26 } |
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27 |
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28 ExternalHelperAppChild::~ExternalHelperAppChild() |
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29 { |
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30 } |
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31 |
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32 //----------------------------------------------------------------------------- |
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33 // nsIStreamListener |
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34 //----------------------------------------------------------------------------- |
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35 NS_IMETHODIMP |
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36 ExternalHelperAppChild::OnDataAvailable(nsIRequest *request, |
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37 nsISupports *ctx, |
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38 nsIInputStream *input, |
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39 uint64_t offset, |
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40 uint32_t count) |
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41 { |
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42 if (NS_FAILED(mStatus)) |
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43 return mStatus; |
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44 |
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45 nsCString data; |
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46 nsresult rv = NS_ReadInputStreamToString(input, data, count); |
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47 if (NS_FAILED(rv)) |
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48 return rv; |
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49 |
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50 if (!SendOnDataAvailable(data, offset, count)) |
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51 return NS_ERROR_UNEXPECTED; |
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52 |
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53 return NS_OK; |
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54 } |
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55 |
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56 ////////////////////////////////////////////////////////////////////////////// |
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57 // nsIRequestObserver |
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58 ////////////////////////////////////////////////////////////////////////////// |
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59 |
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60 NS_IMETHODIMP |
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61 ExternalHelperAppChild::OnStartRequest(nsIRequest *request, nsISupports *ctx) |
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62 { |
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63 nsCOMPtr<nsIDivertableChannel> divertable = do_QueryInterface(request); |
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64 if (divertable) { |
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65 return DivertToParent(divertable, request); |
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66 } |
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67 |
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68 nsresult rv = mHandler->OnStartRequest(request, ctx); |
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69 NS_ENSURE_SUCCESS(rv, NS_ERROR_UNEXPECTED); |
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70 |
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71 nsCString entityID; |
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72 nsCOMPtr<nsIResumableChannel> resumable(do_QueryInterface(request)); |
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73 if (resumable) { |
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74 resumable->GetEntityID(entityID); |
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75 } |
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76 SendOnStartRequest(entityID); |
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77 return NS_OK; |
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78 } |
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79 |
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80 NS_IMETHODIMP |
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81 ExternalHelperAppChild::OnStopRequest(nsIRequest *request, |
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82 nsISupports *ctx, |
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83 nsresult status) |
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84 { |
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85 // mHandler can be null if we diverted the request to the parent |
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86 if (mHandler) { |
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87 nsresult rv = mHandler->OnStopRequest(request, ctx, status); |
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88 SendOnStopRequest(status); |
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89 NS_ENSURE_SUCCESS(rv, NS_ERROR_UNEXPECTED); |
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90 } |
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91 |
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92 return NS_OK; |
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93 } |
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94 |
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95 nsresult |
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96 ExternalHelperAppChild::DivertToParent(nsIDivertableChannel *divertable, nsIRequest *request) |
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97 { |
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98 mozilla::net::ChannelDiverterChild *diverter = nullptr; |
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99 nsresult rv = divertable->DivertToParent(&diverter); |
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100 if (NS_WARN_IF(NS_FAILED(rv))) { |
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101 return rv; |
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102 } |
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103 |
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104 MOZ_ASSERT(diverter); |
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105 if (SendDivertToParentUsing(diverter)) { |
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106 mHandler->DidDivertRequest(request); |
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107 mHandler = nullptr; |
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108 return NS_OK; |
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109 } |
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110 |
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111 return NS_ERROR_FAILURE; |
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112 } |
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113 |
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114 bool |
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115 ExternalHelperAppChild::RecvCancel(const nsresult& aStatus) |
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116 { |
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117 mStatus = aStatus; |
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118 return true; |
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119 } |
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120 |
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121 } // namespace dom |
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122 } // namespace mozilla |