Actual source code: tellmycell.c
petsc-3.10.5 2019-03-28
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      2:  #include <petscwebclient.h>

      4: /*@C
      5:      PetscTellMyCell - Sends an SMS to an American/Canadian phone number

      7:    Not collective, only the first process in MPI_Comm does anything

      9:    Input Parameters:
     10: +  comm - the MPI communicator
     11: .  number - the 10 digit telephone number
     12: -  message - the message

     14:    Output Parameter:
     15: .   flg - PETSC_TRUE if the text was sent

     17:    Options Database:
     18: +   -tellmycell <number[,message]>
     19: .   -tellmycell_user <Username> set when registering at tellmycell.com
     20: -   -tellmycell_password <Password> set when registering at tellmycell.com

     22:    Level: intermediate

     24:    Notes:
     25:     You must register for an account at tellmycell.com (you get 10 free texts with registration)

     27:    You must provide -tellmycell_user <Username> and -tellmycell_password <Password> in the options database

     29:    It would be nice to provide this as a free service but that would require making the PETSc TellMyCell password public.

     31:    Developer Notes:
     32:     Perhaps the Username and Password should be arguments to this function.

     34: .seealso: PetscTextBelt(), PetscHTTPSRequest(), PetscHTTPSConnect(), PetscSSLInitializeContext()
     35: @*/
     36: PetscErrorCode PetscTellMyCell(MPI_Comm comm,const char number[],const char message[],PetscBool *flg)
     37: {
     39:   size_t         nlen,mlen,blen;
     40:   PetscMPIInt    rank;
     41:   char           Username[64],Password[64];

     44:   PetscStrlen(number,&nlen);
     45:   if (nlen != 10) SETERRQ1(comm,PETSC_ERR_ARG_WRONG,"Number %s is not ten digits",number);
     46:   PetscStrlen(message,&mlen);
     47:   if (mlen > 100) SETERRQ1(comm,PETSC_ERR_ARG_WRONG,"Message  %s is too long",message);
     48:   MPI_Comm_rank(comm,&rank);
     49:   if (!rank) {
     50:     int       sock;
     51:     char      buff[1000],*body;
     52:     PetscInt  i;
     53:     SSL_CTX   *ctx;
     54:     SSL       *ssl;
     55:     PetscBool set;

     57:     PetscOptionsGetString(NULL,NULL,"-tellmycell_user",Username,sizeof(Username),&set);
     58:     if (!set) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"You must pass in a tellmycell user name with -tellmycell_user <Username>");
     59:     PetscOptionsGetString(NULL,NULL,"-tellmycell_password",Password,sizeof(Password),&set);
     60:     if (!set) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"You must pass in a tellmycell password with -tellmycell_password <Password>");
     61:     PetscMalloc1(mlen+nlen+100,&body);
     62:     PetscStrcpy(body,"User=");
     63:     PetscStrcat(body,Username);
     64:     PetscStrcat(body,"&Password=");
     65:     PetscStrcat(body,Password);
     66:     PetscStrcat(body,"&PhoneNumbers[]=");
     67:     PetscStrcat(body,number);
     68:     PetscStrcat(body,"&");
     69:     PetscStrcat(body,"Message=");
     70:     PetscStrcat(body,message);
     71:     PetscStrlen(body,&blen);
     72:     for (i=0; i<(int)blen; i++) {
     73:       if (body[i] == ' ') body[i] = '+';
     74:     }
     75:     PetscSSLInitializeContext(&ctx);
     76:     PetscHTTPSConnect("app.tellmycell.com",443,ctx,&sock,&ssl);
     77:     PetscHTTPSRequest("POST","app.tellmycell.com/sending/messages?format=json",NULL,"application/x-www-form-urlencoded",body,ssl,buff,sizeof(buff));
     78:     PetscSSLDestroyContext(ctx);
     79:     close(sock);
     80:     PetscFree(body);
     81:     if (flg) {
     82:       char *found;
     83:       PetscStrstr(buff,"\"success\":tr",&found);
     84:       *flg = found ? PETSC_TRUE : PETSC_FALSE;
     85:     }
     86:   }
     87:   return(0);
     88: }