Mercurial > hg > orthanc-stone

annotate Platforms/Wasm/WasmWebService.cpp @ 1313:f30905f5d246 broker

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Added support for OnGenericSdlEvent to GuiAdapter. This makes it possible to piggyback app-specific logic to special events (here, to support the Viewport refresh events)
author Benjamin Golinvaux <bgo@osimis.io>
date Mon, 16 Mar 2020 11:12:39 +0100
parents 8a0a62189f46
children
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1 #include "WasmWebService.h"
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2 #include "json/value.h"
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3 #include "json/writer.h"
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4 #include <emscripten/emscripten.h>
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5 #include <boost/shared_ptr.hpp>
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6
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7 struct CachedSuccessNotification
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8 {
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9 boost::shared_ptr<Deprecated::BaseWebService::CachedHttpRequestSuccessMessage> cachedMessage;
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10 std::unique_ptr<Orthanc::IDynamicObject> payload;
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11 OrthancStone::MessageHandler<Deprecated::IWebService::HttpRequestSuccessMessage>* successCallback;
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12 };
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14
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15 #ifdef __cplusplus
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16 extern "C" {
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17 #endif
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18
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19 extern void WasmWebService_GetAsync(void* callableSuccess,
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20 void* callableFailure,
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21 const char* uri,
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22 const char* headersInJsonString,
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23 void* payload,
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24 unsigned int timeoutInSeconds);
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25
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26 extern void WasmWebService_ScheduleLaterCachedSuccessNotification(void* brol);
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27
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28 extern void WasmWebService_PostAsync(void* callableSuccess,
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29 void* callableFailure,
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30 const char* uri,
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31 const char* headersInJsonString,
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32 const void* body,
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33 size_t bodySize,
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34 void* payload,
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35 unsigned int timeoutInSeconds);
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36
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37 extern void WasmWebService_DeleteAsync(void* callableSuccess,
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38 void* callableFailure,
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39 const char* uri,
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40 const char* headersInJsonString,
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41 void* payload,
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42 unsigned int timeoutInSeconds);
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43
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44 void EMSCRIPTEN_KEEPALIVE WasmWebService_NotifyError(void* failureCallable,
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45 const char* uri,
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46 unsigned int httpStatus,
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47 void* payload)
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48 {
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49 if (failureCallable != NULL)
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50 {
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51 reinterpret_cast<OrthancStone::MessageHandler<Deprecated::IWebService::HttpRequestErrorMessage>*>(failureCallable)->
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52 Apply(Deprecated::IWebService::HttpRequestErrorMessage(uri, static_cast<Orthanc::HttpStatus>(httpStatus), reinterpret_cast<Orthanc::IDynamicObject*>(payload)));
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53 }
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54 }
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55
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56 void EMSCRIPTEN_KEEPALIVE WasmWebService_NotifyCachedSuccess(void* notification_)
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57 {
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58 // notification has been allocated in C++ and passed to JS. It must be deleted by this method
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59 std::unique_ptr<CachedSuccessNotification> notification(reinterpret_cast<CachedSuccessNotification*>(notification_));
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61 notification->successCallback->Apply(Deprecated::IWebService::HttpRequestSuccessMessage(
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62 notification->cachedMessage->GetUri(),
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63 notification->cachedMessage->GetAnswer(),
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64 notification->cachedMessage->GetAnswerSize(),
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65 notification->cachedMessage->GetAnswerHttpHeaders(),
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66 notification->payload.get()
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67 ));
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68 }
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69
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70 void EMSCRIPTEN_KEEPALIVE WasmWebService_NotifySuccess(void* successCallable,
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71 const char* uri,
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72 const void* body,
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73 size_t bodySize,
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74 const char* answerHeaders,
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75 void* payload)
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76 {
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77 if (successCallable != NULL)
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78 {
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79 Deprecated::IWebService::HttpHeaders headers;
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80
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81 // TODO - Parse "answerHeaders"
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82 //printf("TODO: parse headers [%s]\n", answerHeaders);
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83
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84 reinterpret_cast<OrthancStone::MessageHandler<Deprecated::IWebService::HttpRequestSuccessMessage>*>(successCallable)->
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85 Apply(Deprecated::IWebService::HttpRequestSuccessMessage(uri, body, bodySize, headers,
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86 reinterpret_cast<Orthanc::IDynamicObject*>(payload)));
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87 }
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88 }
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89
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90 #ifdef __cplusplus
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91 }
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92 #endif
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93
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95
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96 namespace Deprecated
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97 {
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98 OrthancStone::MessageBroker* WasmWebService::broker_ = NULL;
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99
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100 void ToJsonString(std::string& output, const IWebService::HttpHeaders& headers)
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101 {
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102 Json::Value jsonHeaders;
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103 for (IWebService::HttpHeaders::const_iterator it = headers.begin(); it != headers.end(); it++ )
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104 {
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105 jsonHeaders[it->first] = it->second;
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106 }
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107
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108 Json::StreamWriterBuilder builder;
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109 std::unique_ptr<Json::StreamWriter> writer(builder.newStreamWriter());
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110 std::ostringstream outputStr;
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111
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112 writer->write(jsonHeaders, &outputStr);
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113 output = outputStr.str();
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114 }
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115
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116 void WasmWebService::PostAsync(const std::string& relativeUri,
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117 const HttpHeaders& headers,
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118 const std::string& body,
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119 Orthanc::IDynamicObject* payload,
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120 OrthancStone::MessageHandler<IWebService::HttpRequestSuccessMessage>* successCallable,
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121 OrthancStone::MessageHandler<IWebService::HttpRequestErrorMessage>* failureCallable,
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122 unsigned int timeoutInSeconds)
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123 {
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124 std::string headersInJsonString;
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125 ToJsonString(headersInJsonString, headers);
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126 WasmWebService_PostAsync(successCallable, failureCallable, relativeUri.c_str(), headersInJsonString.c_str(),
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127 body.c_str(), body.size(), payload, timeoutInSeconds);
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128 }
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129
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130 void WasmWebService::DeleteAsync(const std::string& relativeUri,
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131 const HttpHeaders& headers,
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132 Orthanc::IDynamicObject* payload,
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133 OrthancStone::MessageHandler<IWebService::HttpRequestSuccessMessage>* successCallable,
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134 OrthancStone::MessageHandler<IWebService::HttpRequestErrorMessage>* failureCallable,
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135 unsigned int timeoutInSeconds)
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136 {
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137 std::string headersInJsonString;
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138 ToJsonString(headersInJsonString, headers);
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139 WasmWebService_DeleteAsync(successCallable, failureCallable, relativeUri.c_str(), headersInJsonString.c_str(),
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140 payload, timeoutInSeconds);
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141 }
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142
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143 void WasmWebService::GetAsyncInternal(const std::string &relativeUri,
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144 const HttpHeaders &headers,
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145 Orthanc::IDynamicObject *payload,
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146 OrthancStone::MessageHandler<IWebService::HttpRequestSuccessMessage> *successCallable,
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147 OrthancStone::MessageHandler<IWebService::HttpRequestErrorMessage> *failureCallable,
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148 unsigned int timeoutInSeconds)
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149 {
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150 std::string headersInJsonString;
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151 ToJsonString(headersInJsonString, headers);
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152 WasmWebService_GetAsync(successCallable, failureCallable, relativeUri.c_str(),
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153 headersInJsonString.c_str(), payload, timeoutInSeconds);
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154 }
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155
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156 void WasmWebService::NotifyHttpSuccessLater(boost::shared_ptr<BaseWebService::CachedHttpRequestSuccessMessage> cachedMessage,
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157 Orthanc::IDynamicObject* payload, // takes ownership
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158 OrthancStone::MessageHandler<IWebService::HttpRequestSuccessMessage>* successCallback)
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159 {
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160 CachedSuccessNotification* notification = new CachedSuccessNotification(); // allocated on the heap, it will be passed to JS and deleted when coming back to C++
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161 notification->cachedMessage = cachedMessage;
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162 notification->payload.reset(payload);
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163 notification->successCallback = successCallback;
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164
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165 WasmWebService_ScheduleLaterCachedSuccessNotification(notification);
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166 }
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167
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168 }