service/notification/src/consumer/NSConsumerDiscovery.c

   1 //******************************************************************
   2 //
   3 // Copyright 2016 Samsung Electronics All Rights Reserved.
   4 //
   5 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
   6 //
   7 // Licensed under the Apache License, Version 2.0 (the "License");
   8 // you may not use this file except in compliance with the License.
   9 // You may obtain a copy of the License at
  10 //
  11 //      http://www.apache.org/licenses/LICENSE-2.0
  12 //
  13 // Unless required by applicable law or agreed to in writing, software
  14 // distributed under the License is distributed on an "AS IS" BASIS,
  15 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16 // See the License for the specific language governing permissions and
  17 // limitations under the License.
  18 //
  19 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  20
  21 #include "NSConsumerDiscovery.h"
  22
  23 #include <string.h>
  24 #include "NSCommon.h"
  25 #include "NSConsumerCommon.h"
  26 #include "NSConstants.h"
  27 #include "ocpayload.h"
  28 #include "oic_malloc.h"
  29 #include "oic_string.h"
  30
  31 #define NS_DISCOVER_QUERY "/oic/res?rt=oic.r.notification"
  32 #define NS_PRESENCE_SUBSCRIBE_QUERY_TCP "/oic/ad?rt=oic.r.notification"
  33 #define NS_GET_INFORMATION_QUERY "/notification?if=oic.if.notification"
  34
  35 NSProvider_internal * NSGetProvider(OCClientResponse * clientResponse);
  36
  37 OCDevAddr * NSChangeAddress(const char * address);
  38
  39 OCStackApplicationResult NSConsumerPresenceListener(
  40         void * ctx, OCDoHandle handle, OCClientResponse * clientResponse)
  41 {
  42     (void) ctx;
  43     (void) handle;
  44
  45     NS_VERIFY_NOT_NULL(clientResponse, OC_STACK_KEEP_TRANSACTION);
  46     NS_VERIFY_STACK_SUCCESS(
  47             NSOCResultToSuccess(clientResponse->result), OC_STACK_KEEP_TRANSACTION);
  48
  49     NS_LOG_V(DEBUG, "Presence income : %s:%d",
  50             clientResponse->devAddr.addr, clientResponse->devAddr.port);
  51     NS_LOG_V(DEBUG, "Presence result : %d",
  52             clientResponse->result);
  53     NS_LOG_V(DEBUG, "Presence sequenceNum : %d",
  54             clientResponse->sequenceNumber);
  55     NS_LOG_V(DEBUG, "Presence Transport Type : %d",
  56                 clientResponse->devAddr.adapter);
  57
  58     if (!NSIsStartedConsumer())
  59     {
  60         return OC_STACK_DELETE_TRANSACTION;
  61     }
  62
  63     OCPresencePayload * payload = (OCPresencePayload *)clientResponse->payload;
  64     if (payload->trigger == OC_PRESENCE_TRIGGER_DELETE ||
  65             clientResponse->result == OC_STACK_PRESENCE_STOPPED)
  66     {
  67         NS_LOG(DEBUG, "stopped presence or resource is deleted.");
  68         NS_LOG(DEBUG, "build NSTask");
  69         OCDevAddr * addr = (OCDevAddr *)OICMalloc(sizeof(OCDevAddr));
  70         NS_VERIFY_NOT_NULL(addr, OC_STACK_KEEP_TRANSACTION);
  71         memcpy(addr, clientResponse->addr, sizeof(OCDevAddr));
  72
  73         NSTask * task = NSMakeTask(TASK_CONSUMER_PROVIDER_DELETED, addr);
  74         NS_VERIFY_NOT_NULL(task, OC_STACK_KEEP_TRANSACTION);
  75     }
  76
  77     else if (payload->trigger == OC_PRESENCE_TRIGGER_CREATE)
  78     {
  79         NS_LOG(DEBUG, "started presence or resource is created.");
  80         NSInvokeRequest(NULL, OC_REST_DISCOVER, clientResponse->addr,
  81             NS_DISCOVER_QUERY, NULL, NSProviderDiscoverListener, NULL,
  82             clientResponse->addr->adapter);
  83     }
  84
  85     return OC_STACK_KEEP_TRANSACTION;
  86 }
  87
  88 OCStackApplicationResult NSProviderDiscoverListener(
  89         void * ctx, OCDoHandle handle, OCClientResponse * clientResponse)
  90 {
  91     (void) handle;
  92
  93     NS_VERIFY_NOT_NULL(clientResponse, OC_STACK_KEEP_TRANSACTION);
  94     NS_VERIFY_NOT_NULL(clientResponse->payload, OC_STACK_KEEP_TRANSACTION);
  95     NS_VERIFY_STACK_SUCCESS(NSOCResultToSuccess(clientResponse->result), OC_STACK_KEEP_TRANSACTION);
  96
  97     NS_LOG_V(DEBUG, "Discover income : %s:%d",
  98             clientResponse->devAddr.addr, clientResponse->devAddr.port);
  99     NS_LOG_V(DEBUG, "Discover result : %d",
 100             clientResponse->result);
 101     NS_LOG_V(DEBUG, "Discover sequenceNum : %d",
 102             clientResponse->sequenceNumber);
 103     NS_LOG_V(DEBUG, "Discover Transport Type : %d",
 104                     clientResponse->devAddr.adapter);
 105
 106     if (!NSIsStartedConsumer())
 107     {
 108         return OC_STACK_DELETE_TRANSACTION;
 109     }
 110
 111     OCResourcePayload * resource = ((OCDiscoveryPayload *)clientResponse->payload)->resources;
 112     while (resource)
 113     {
 114         NS_VERIFY_NOT_NULL(resource->uri, OC_STACK_KEEP_TRANSACTION);
 115         if (strstr(resource->uri, NS_RESOURCE_URI))
 116         {
 117             OCConnectivityType type = CT_DEFAULT;
 118             if (clientResponse->addr->adapter == OC_ADAPTER_TCP)
 119             {
 120                 type = CT_ADAPTER_TCP;
 121             }
 122
 123             NSInvokeRequest(NULL, OC_REST_GET, clientResponse->addr,
 124                     resource->uri, NULL, NSIntrospectProvider, ctx,
 125                     type);
 126         }
 127         resource = resource->next;
 128     }
 129
 130     return OC_STACK_KEEP_TRANSACTION;
 131 }
 132
 133 OCStackApplicationResult NSIntrospectProvider(
 134         void * ctx, OCDoHandle handle, OCClientResponse * clientResponse)
 135 {
 136     (void) handle;
 137
 138     NS_VERIFY_NOT_NULL(clientResponse, OC_STACK_KEEP_TRANSACTION);
 139     NS_VERIFY_STACK_SUCCESS(NSOCResultToSuccess(clientResponse->result), OC_STACK_KEEP_TRANSACTION);
 140
 141     NS_LOG_V(DEBUG, "GET response income : %s:%d",
 142             clientResponse->devAddr.addr, clientResponse->devAddr.port);
 143     NS_LOG_V(DEBUG, "GET response result : %d",
 144             clientResponse->result);
 145     NS_LOG_V(DEBUG, "GET response sequenceNum : %d",
 146             clientResponse->sequenceNumber);
 147     NS_LOG_V(DEBUG, "GET response resource uri : %s",
 148             clientResponse->resourceUri);
 149     NS_LOG_V(DEBUG, "GET response Transport Type : %d",
 150                     clientResponse->devAddr.adapter);
 151
 152     if (!NSIsStartedConsumer())
 153     {
 154         return OC_STACK_DELETE_TRANSACTION;
 155     }
 156
 157     NSProvider_internal * newProvider = NSGetProvider(clientResponse);
 158     NS_VERIFY_NOT_NULL(newProvider, OC_STACK_KEEP_TRANSACTION);
 159     if (ctx && *((NSConsumerDiscoverType *)ctx) == NS_DISCOVER_CLOUD )
 160     {
 161         newProvider->connection->isCloudConnection = true;
 162         NSOICFree(ctx);
 163     }
 164
 165     NS_LOG(DEBUG, "build NSTask");
 166     NSTask * task = NSMakeTask(TASK_CONSUMER_PROVIDER_DISCOVERED, (void *) newProvider);
 167     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(task, NS_ERROR, NSRemoveProvider_internal(newProvider));
 168
 169     NSConsumerPushEvent(task);
 170
 171     return OC_STACK_KEEP_TRANSACTION;
 172 }
 173
 174 void NSGetProviderPostClean(
 175         char * pId, char * mUri, char * sUri, char * tUri, NSProviderConnectionInfo * connection)
 176 {
 177     NSOICFree(pId);
 178     NSOICFree(mUri);
 179     NSOICFree(sUri);
 180     NSOICFree(tUri);
 181     NSRemoveConnections(connection);
 182 }
 183
 184 NSProvider_internal * NSGetProvider(OCClientResponse * clientResponse)
 185 {
 186     NS_LOG(DEBUG, "create NSProvider");
 187     NS_VERIFY_NOT_NULL(clientResponse->payload, NULL);
 188
 189     OCRepPayload * payload = (OCRepPayload *)clientResponse->payload;
 190     while (payload)
 191     {
 192         NS_LOG_V(DEBUG, "Payload Key : %s", payload->values->name);
 193         payload = payload->next;
 194     }
 195
 196     payload = (OCRepPayload *)clientResponse->payload;
 197
 198     char * providerId = NULL;
 199     char * messageUri = NULL;
 200     char * syncUri = NULL;
 201     char * topicUri = NULL;
 202     int64_t accepter = 0;
 203     NSProviderConnectionInfo * connection = NULL;
 204
 205     NS_LOG(DEBUG, "get information of accepter");
 206     bool getResult = OCRepPayloadGetPropInt(payload, NS_ATTRIBUTE_POLICY, & accepter);
 207     NS_VERIFY_NOT_NULL(getResult == true ? (void *) 1 : NULL, NULL);
 208
 209     NS_LOG(DEBUG, "get provider ID");
 210     getResult = OCRepPayloadGetPropString(payload, NS_ATTRIBUTE_PROVIDER_ID, & providerId);
 211     NS_VERIFY_NOT_NULL(getResult == true ? (void *) 1 : NULL, NULL);
 212
 213     NS_LOG(DEBUG, "get message URI");
 214     getResult = OCRepPayloadGetPropString(payload, NS_ATTRIBUTE_MESSAGE, & messageUri);
 215     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(getResult == true ? (void *) 1 : NULL, NULL,
 216             NSGetProviderPostClean(providerId, messageUri, syncUri, topicUri, connection));
 217
 218     NS_LOG(DEBUG, "get sync URI");
 219     getResult = OCRepPayloadGetPropString(payload, NS_ATTRIBUTE_SYNC, & syncUri);
 220     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(getResult == true ? (void *) 1 : NULL, NULL,
 221             NSGetProviderPostClean(providerId, messageUri, syncUri, topicUri, connection));
 222
 223     NS_LOG(DEBUG, "get topic URI");
 224     getResult = OCRepPayloadGetPropString(payload, NS_ATTRIBUTE_TOPIC, & topicUri);
 225     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(getResult == true ? (void *) 1 : NULL, NULL,
 226             NSGetProviderPostClean(providerId, messageUri, syncUri, topicUri, connection));
 227
 228     NS_LOG(DEBUG, "get provider connection information");
 229     NS_VERIFY_NOT_NULL(clientResponse->addr, NULL);
 230     connection = NSCreateProviderConnections(clientResponse->addr);
 231     NS_VERIFY_NOT_NULL(connection, NULL);
 232
 233     NSProvider_internal * newProvider
 234         = (NSProvider_internal *)OICMalloc(sizeof(NSProvider_internal));
 235     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(newProvider, NULL,
 236           NSGetProviderPostClean(providerId, messageUri, syncUri, topicUri, connection));
 237
 238     OICStrcpy(newProvider->providerId, sizeof(char) * NS_DEVICE_ID_LENGTH, providerId);
 239     NSOICFree(providerId);
 240     newProvider->messageUri = messageUri;
 241     newProvider->syncUri = syncUri;
 242     newProvider->topicUri = topicUri;
 243     newProvider->accessPolicy = (NSSelector)accepter;
 244     newProvider->connection = connection;
 245     newProvider->topicLL = NULL;
 246
 247     return newProvider;
 248 }
 249
 250 OCDevAddr * NSChangeAddress(const char * address)
 251 {
 252     NS_VERIFY_NOT_NULL(address, NULL);
 253     OCDevAddr * retAddr = NULL;
 254
 255     int index = 0;
 256     while(address[index] != '\0')
 257     {
 258         if (address[index] == ':')
 259         {
 260             break;
 261         }
 262         index++;
 263     }
 264
 265     if (address[index] == '\0')
 266     {
 267         return NULL;
 268     }
 269
 270     int tmp = index + 1;
 271     uint16_t port = address[tmp++];
 272
 273     while(address[tmp] != '\0')
 274     {
 275         port *= 10;
 276         port += address[tmp++] - '0';
 277     }
 278
 279     retAddr = (OCDevAddr *) OICMalloc(sizeof(OCDevAddr));
 280     NS_VERIFY_NOT_NULL(retAddr, NULL);
 281
 282     retAddr->adapter = OC_ADAPTER_TCP;
 283     OICStrcpy(retAddr->addr, index - 1, address);
 284     retAddr->addr[index] = '\0';
 285     retAddr->port = port;
 286
 287     return retAddr;
 288 }
 289
 290 void NSConsumerHandleRequestDiscover(OCDevAddr * address, NSConsumerDiscoverType rType)
 291 {
 292     OCConnectivityType type = CT_DEFAULT;
 293     NSConsumerDiscoverType * callbackData = NULL;
 294
 295     if (address)
 296     {
 297         if (address->adapter == OC_ADAPTER_IP)
 298         {
 299             type = CT_ADAPTER_IP;
 300             NS_LOG(DEBUG, "Request discover [UDP]");
 301         }
 302         else if (address->adapter == OC_ADAPTER_TCP)
 303         {
 304             type = CT_ADAPTER_TCP;
 305             NS_LOG(DEBUG, "Request discover and subscribe presence [TCP]");
 306             NS_LOG(DEBUG, "Subscribe presence [TCP]");
 307             NSInvokeRequest(NULL, OC_REST_PRESENCE, address, NS_PRESENCE_SUBSCRIBE_QUERY_TCP,
 308                     NULL, NSConsumerPresenceListener, NULL, type);
 309
 310             if (rType == NS_DISCOVER_CLOUD)
 311             {
 312                 callbackData = (NSConsumerDiscoverType *)OICMalloc(sizeof(NSConsumerDiscoverType));
 313                 *callbackData = NS_DISCOVER_CLOUD;
 314             }
 315         }
 316         else
 317         {
 318             NS_LOG_V(DEBUG, "Request discover But Adapter is not IP : %d", address->adapter);
 319         }
 320     }
 321     else
 322     {
 323         NS_LOG(DEBUG, "Request Multicast discover [UDP]");
 324     }
 325
 326     NSInvokeRequest(NULL, OC_REST_DISCOVER, address, NS_DISCOVER_QUERY,
 327             NULL, NSProviderDiscoverListener, (void *)callbackData, type);
 328 }
 329
 330 void NSConsumerDiscoveryTaskProcessing(NSTask * task)
 331 {
 332     NS_VERIFY_NOT_NULL_V(task);
 333
 334     NS_LOG_V(DEBUG, "Receive Event : %d", (int)task->taskType);
 335     if (task->taskType == TASK_CONSUMER_REQ_DISCOVER)
 336     {
 337         char * address = (char *) task->taskData;
 338         NSConsumerDiscoverType dType = NS_DISCOVER_DEFAULT;
 339
 340         OCDevAddr * addr = NULL;
 341         if (address)
 342         {
 343             addr = NSChangeAddress(address);
 344             dType = NS_DISCOVER_CLOUD;
 345         }
 346
 347         NSConsumerHandleRequestDiscover(addr, dType);
 348         NSOICFree(task->taskData);
 349         NSOICFree(addr);
 350     }
 351     else if (task->taskType == TASK_EVENT_CONNECTED || task->taskType == TASK_EVENT_CONNECTED_TCP)
 352     {
 353         NSConsumerHandleRequestDiscover((OCDevAddr *) task->taskData, NS_DISCOVER_DEFAULT);
 354         NSOICFree(task->taskData);
 355     }
 356     else
 357     {
 358         NS_LOG(ERROR, "Unknown type message");
 359     }
 360
 361     NSOICFree(task);
 362 }