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         NSConsumerPushEvent(task);
  77     }
  78
  79     else if (payload->trigger == OC_PRESENCE_TRIGGER_CREATE)
  80     {
  81         NS_LOG(DEBUG, "started presence or resource is created.");
  82         NSInvokeRequest(NULL, OC_REST_DISCOVER, clientResponse->addr,
  83             NS_DISCOVER_QUERY, NULL, NSProviderDiscoverListener, NULL,
  84             clientResponse->addr->adapter);
  85     }
  86
  87     return OC_STACK_KEEP_TRANSACTION;
  88 }
  89
  90 OCStackApplicationResult NSProviderDiscoverListener(
  91         void * ctx, OCDoHandle handle, OCClientResponse * clientResponse)
  92 {
  93     (void) handle;
  94
  95     NS_VERIFY_NOT_NULL(clientResponse, OC_STACK_KEEP_TRANSACTION);
  96     NS_VERIFY_NOT_NULL(clientResponse->payload, OC_STACK_KEEP_TRANSACTION);
  97     NS_VERIFY_STACK_SUCCESS(NSOCResultToSuccess(clientResponse->result), OC_STACK_KEEP_TRANSACTION);
  98
  99     NS_LOG_V(DEBUG, "Discover income : %s:%d",
 100             clientResponse->devAddr.addr, clientResponse->devAddr.port);
 101     NS_LOG_V(DEBUG, "Discover result : %d",
 102             clientResponse->result);
 103     NS_LOG_V(DEBUG, "Discover sequenceNum : %d",
 104             clientResponse->sequenceNumber);
 105     NS_LOG_V(DEBUG, "Discover Transport Type : %d",
 106                     clientResponse->devAddr.adapter);
 107
 108     if (!NSIsStartedConsumer())
 109     {
 110         return OC_STACK_DELETE_TRANSACTION;
 111     }
 112
 113     OCResourcePayload * resource = ((OCDiscoveryPayload *)clientResponse->payload)->resources;
 114     while (resource)
 115     {
 116         NS_VERIFY_NOT_NULL(resource->uri, OC_STACK_KEEP_TRANSACTION);
 117         if (strstr(resource->uri, NS_RESOURCE_URI))
 118         {
 119             OCConnectivityType type = CT_DEFAULT;
 120             if (clientResponse->addr->adapter == OC_ADAPTER_TCP)
 121             {
 122                 type = CT_ADAPTER_TCP;
 123             }
 124
 125             NSInvokeRequest(NULL, OC_REST_GET, clientResponse->addr,
 126                     resource->uri, NULL, NSIntrospectProvider, ctx,
 127                     type);
 128         }
 129         resource = resource->next;
 130     }
 131
 132     return OC_STACK_KEEP_TRANSACTION;
 133 }
 134
 135 OCStackApplicationResult NSIntrospectProvider(
 136         void * ctx, OCDoHandle handle, OCClientResponse * clientResponse)
 137 {
 138     (void) handle;
 139
 140     NS_VERIFY_NOT_NULL(clientResponse, OC_STACK_KEEP_TRANSACTION);
 141     NS_VERIFY_STACK_SUCCESS(NSOCResultToSuccess(clientResponse->result), OC_STACK_KEEP_TRANSACTION);
 142
 143     NS_LOG_V(DEBUG, "GET response income : %s:%d",
 144             clientResponse->devAddr.addr, clientResponse->devAddr.port);
 145     NS_LOG_V(DEBUG, "GET response result : %d",
 146             clientResponse->result);
 147     NS_LOG_V(DEBUG, "GET response sequenceNum : %d",
 148             clientResponse->sequenceNumber);
 149     NS_LOG_V(DEBUG, "GET response resource uri : %s",
 150             clientResponse->resourceUri);
 151     NS_LOG_V(DEBUG, "GET response Transport Type : %d",
 152                     clientResponse->devAddr.adapter);
 153
 154     if (!NSIsStartedConsumer())
 155     {
 156         return OC_STACK_DELETE_TRANSACTION;
 157     }
 158
 159     NSProvider_internal * newProvider = NSGetProvider(clientResponse);
 160     NS_VERIFY_NOT_NULL(newProvider, OC_STACK_KEEP_TRANSACTION);
 161     if (ctx && *((NSConsumerDiscoverType *)ctx) == NS_DISCOVER_CLOUD )
 162     {
 163         newProvider->connection->isCloudConnection = true;
 164         NSOICFree(ctx);
 165     }
 166
 167     NS_LOG(DEBUG, "build NSTask");
 168     NSTask * task = NSMakeTask(TASK_CONSUMER_PROVIDER_DISCOVERED, (void *) newProvider);
 169     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(task, NS_ERROR, NSRemoveProvider_internal(newProvider));
 170
 171     NSConsumerPushEvent(task);
 172
 173     return OC_STACK_KEEP_TRANSACTION;
 174 }
 175
 176 void NSGetProviderPostClean(
 177         char * pId, char * mUri, char * sUri, char * tUri, NSProviderConnectionInfo * connection)
 178 {
 179     NSOICFree(pId);
 180     NSOICFree(mUri);
 181     NSOICFree(sUri);
 182     NSOICFree(tUri);
 183     NSRemoveConnections(connection);
 184 }
 185
 186 NSProvider_internal * NSGetProvider(OCClientResponse * clientResponse)
 187 {
 188     NS_LOG(DEBUG, "create NSProvider");
 189     NS_VERIFY_NOT_NULL(clientResponse->payload, NULL);
 190
 191     OCRepPayload * payload = (OCRepPayload *)clientResponse->payload;
 192     while (payload)
 193     {
 194         NS_LOG_V(DEBUG, "Payload Key : %s", payload->values->name);
 195         payload = payload->next;
 196     }
 197
 198     payload = (OCRepPayload *)clientResponse->payload;
 199
 200     char * providerId = NULL;
 201     char * messageUri = NULL;
 202     char * syncUri = NULL;
 203     char * topicUri = NULL;
 204     int64_t accepter = 0;
 205     NSProviderConnectionInfo * connection = NULL;
 206
 207     NS_LOG(DEBUG, "get information of accepter");
 208     bool getResult = OCRepPayloadGetPropInt(payload, NS_ATTRIBUTE_POLICY, & accepter);
 209     NS_VERIFY_NOT_NULL(getResult == true ? (void *) 1 : NULL, NULL);
 210
 211     NS_LOG(DEBUG, "get provider ID");
 212     getResult = OCRepPayloadGetPropString(payload, NS_ATTRIBUTE_PROVIDER_ID, & providerId);
 213     NS_VERIFY_NOT_NULL(getResult == true ? (void *) 1 : NULL, NULL);
 214
 215     NS_LOG(DEBUG, "get message URI");
 216     getResult = OCRepPayloadGetPropString(payload, NS_ATTRIBUTE_MESSAGE, & messageUri);
 217     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(getResult == true ? (void *) 1 : NULL, NULL,
 218             NSGetProviderPostClean(providerId, messageUri, syncUri, topicUri, connection));
 219
 220     NS_LOG(DEBUG, "get sync URI");
 221     getResult = OCRepPayloadGetPropString(payload, NS_ATTRIBUTE_SYNC, & syncUri);
 222     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(getResult == true ? (void *) 1 : NULL, NULL,
 223             NSGetProviderPostClean(providerId, messageUri, syncUri, topicUri, connection));
 224
 225     NS_LOG(DEBUG, "get topic URI");
 226     getResult = OCRepPayloadGetPropString(payload, NS_ATTRIBUTE_TOPIC, & topicUri);
 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 = NULL;
 243     if (topicUri && strlen(topicUri) > 0)
 244     {
 245         newProvider->topicUri = topicUri;
 246     }
 247     newProvider->accessPolicy = (NSSelector)accepter;
 248     newProvider->connection = connection;
 249     newProvider->topicLL = NULL;
 250
 251     return newProvider;
 252 }
 253
 254 OCDevAddr * NSChangeAddress(const char * address)
 255 {
 256     NS_VERIFY_NOT_NULL(address, NULL);
 257     OCDevAddr * retAddr = NULL;
 258
 259     int index = 0;
 260     while(address[index] != '\0')
 261     {
 262         if (address[index] == ':')
 263         {
 264             break;
 265         }
 266         index++;
 267     }
 268
 269     if (address[index] == '\0')
 270     {
 271         return NULL;
 272     }
 273
 274     int tmp = index + 1;
 275     uint16_t port = address[tmp++];
 276
 277     while(address[tmp] != '\0')
 278     {
 279         port *= 10;
 280         port += address[tmp++] - '0';
 281     }
 282
 283     retAddr = (OCDevAddr *) OICMalloc(sizeof(OCDevAddr));
 284     NS_VERIFY_NOT_NULL(retAddr, NULL);
 285
 286     retAddr->adapter = OC_ADAPTER_TCP;
 287     OICStrcpy(retAddr->addr, index - 1, address);
 288     retAddr->addr[index] = '\0';
 289     retAddr->port = port;
 290
 291     return retAddr;
 292 }
 293
 294 void NSConsumerHandleRequestDiscover(OCDevAddr * address, NSConsumerDiscoverType rType)
 295 {
 296     OCConnectivityType type = CT_DEFAULT;
 297     NSConsumerDiscoverType * callbackData = NULL;
 298
 299     if (address)
 300     {
 301         if (address->adapter == OC_ADAPTER_IP)
 302         {
 303             type = CT_ADAPTER_IP;
 304             NS_LOG(DEBUG, "Request discover [UDP]");
 305         }
 306         else if (address->adapter == OC_ADAPTER_TCP)
 307         {
 308             type = CT_ADAPTER_TCP;
 309             NS_LOG(DEBUG, "Request discover and subscribe presence [TCP]");
 310             NS_LOG(DEBUG, "Subscribe presence [TCP]");
 311             NSInvokeRequest(NULL, OC_REST_PRESENCE, address, NS_PRESENCE_SUBSCRIBE_QUERY_TCP,
 312                     NULL, NSConsumerPresenceListener, NULL, type);
 313
 314             if (rType == NS_DISCOVER_CLOUD)
 315             {
 316                 callbackData = (NSConsumerDiscoverType *)OICMalloc(sizeof(NSConsumerDiscoverType));
 317                 *callbackData = NS_DISCOVER_CLOUD;
 318             }
 319         }
 320         else
 321         {
 322             NS_LOG_V(DEBUG, "Request discover But Adapter is not IP : %d", address->adapter);
 323         }
 324     }
 325     else
 326     {
 327         NS_LOG(DEBUG, "Request Multicast discover [UDP]");
 328     }
 329
 330     NSInvokeRequest(NULL, OC_REST_DISCOVER, address, NS_DISCOVER_QUERY,
 331             NULL, NSProviderDiscoverListener, (void *)callbackData, type);
 332 }
 333
 334 void NSConsumerDiscoveryTaskProcessing(NSTask * task)
 335 {
 336     NS_VERIFY_NOT_NULL_V(task);
 337
 338     NS_LOG_V(DEBUG, "Receive Event : %d", (int)task->taskType);
 339     if (task->taskType == TASK_CONSUMER_REQ_DISCOVER)
 340     {
 341         char * address = (char *) task->taskData;
 342         NSConsumerDiscoverType dType = NS_DISCOVER_DEFAULT;
 343
 344         OCDevAddr * addr = NULL;
 345         if (address)
 346         {
 347             addr = NSChangeAddress(address);
 348             dType = NS_DISCOVER_CLOUD;
 349         }
 350
 351         NSConsumerHandleRequestDiscover(addr, dType);
 352         NSOICFree(task->taskData);
 353         NSOICFree(addr);
 354     }
 355     else if (task->taskType == TASK_EVENT_CONNECTED || task->taskType == TASK_EVENT_CONNECTED_TCP)
 356     {
 357         NSConsumerHandleRequestDiscover((OCDevAddr *) task->taskData, NS_DISCOVER_DEFAULT);
 358         NSOICFree(task->taskData);
 359     }
 360     else
 361     {
 362         NS_LOG(ERROR, "Unknown type message");
 363     }
 364
 365     NSOICFree(task);
 366 }