src/c-apps/osrf_version.c

   1 #include "opensrf/osrf_app_session.h"
   2 #include "opensrf/osrf_application.h"
   3 #include "objson/object.h"
   4 #include "opensrf/utils.h"
   5 #include "opensrf/osrf_log.h"
   6
   7 #define OSRF_VERSION_CACHE_TIME 300
   8
   9 int osrfAppInitialize();
  10 int osrfAppChildInit();
  11 int osrfVersion( osrfMethodContext* );
  12
  13
  14 int osrfAppInitialize() {
  15
  16         osrfAppRegisterMethod(
  17                         "opensrf.version",
  18                         "opensrf.version.verify",
  19                         "osrfVersion",
  20                         "The data for a service/method/params combination will be retrieved "
  21                         "from the necessary server and the MD5 sum of the total values received "
  22                         "will be returned. PARAMS( serviceName, methodName, [param1, ...] )",
  23                         2, 0 );
  24
  25         return 0;
  26 }
  27
  28 int osrfAppChildInit() {
  29         return 0;
  30 }
  31
  32 int osrfVersion( osrfMethodContext* ctx ) {
  33
  34         OSRF_METHOD_VERIFY_CONTEXT(ctx);
  35
  36         /* First, see if the data is in the cache */
  37         char* json = jsonObjectToJSON(ctx->params);
  38         char* paramsmd5 = md5sum(json);
  39         char* cachedmd5 = osrfCacheGetString(paramsmd5);
  40         free(json);
  41
  42         if( cachedmd5 ) {
  43                 osrfLog( OSRF_DEBUG, "Found %s object in cache, returning....", cachedmd5 );
  44                 jsonObject* resp = jsonNewObject(cachedmd5);
  45                 osrfAppRespondComplete( ctx, resp  );
  46                 jsonObjectFree(resp);
  47                 free(paramsmd5);
  48                 free(cachedmd5);
  49                 return 0;
  50         }
  51
  52         jsonObject* serv = jsonObjectGetIndex(ctx->params, 0);
  53         jsonObject* meth = jsonObjectGetIndex(ctx->params, 1);
  54         char* service = jsonObjectGetString(serv);
  55         char* methd = jsonObjectGetString(meth);
  56
  57         if( service && methd ) {
  58                 /* shove the additional params into an array */
  59                 jsonObject* tmpArray = jsonNewObject(NULL);
  60                 int i;
  61                 for( i = 2; i != ctx->params->size; i++ )
  62                         jsonObjectPush( tmpArray, jsonObjectClone(jsonObjectGetIndex(ctx->params, i)));
  63
  64                 osrfAppSession* ses = osrfAppSessionClientInit(service);
  65                 int reqid = osrfAppSessionMakeRequest( ses, tmpArray, methd, 1, NULL );
  66                 osrfMessage* omsg = osrfAppSessionRequestRecv( ses, reqid, 60 );
  67                 jsonObjectFree(tmpArray);
  68
  69                 if( omsg ) {
  70
  71                         jsonObject* result = osrfMessageGetResult( omsg );
  72                         char* resultjson = jsonObjectToJSON(result);
  73                         char* resultmd5 = md5sum(resultjson);
  74                         free(resultjson);
  75                         osrfMessageFree(omsg);
  76
  77                         if( resultmd5 ) {
  78                                 jsonObject* resp = jsonNewObject(resultmd5);
  79                                 osrfAppRespondComplete( ctx, resp );
  80                                 jsonObjectFree(resp);
  81                                 osrfAppSessionFree(ses);
  82                                 osrfLog(OSRF_DEBUG, "Found version string %s, caching and returning...", resultmd5 );
  83                                 osrfCachePutString( paramsmd5, resultmd5, OSRF_VERSION_CACHE_TIME );
  84                                 free(resultmd5);
  85                                 free(paramsmd5);
  86                                 return 0;
  87                         }
  88                 }
  89                 osrfAppSessionFree(ses);
  90         }
  91
  92         free(paramsmd5);
  93
  94         return -1;
  95 }
  96
  97
  98