1 #include <petscwebclient.h> 2 3 /* 4 Encodes and decodes from MIME Base64 5 */ 6 static char encoding_table[] = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 7 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 8 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 9 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 10 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 11 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 12 'w', 'x', 'y', 'z', '0', '1', '2', '3', 13 '4', '5', '6', '7', '8', '9', '+', '/'}; 14 15 static PetscErrorCode base64_encode(const unsigned char *data,unsigned char *encoded_data,size_t len) 16 { 17 static size_t mod_table[] = {0, 2, 1}; 18 size_t i,j; 19 size_t input_length,output_length; 20 PetscErrorCode ierr; 21 22 PetscFunctionBegin; 23 ierr = PetscStrlen((const char*)data,&input_length);CHKERRQ(ierr); 24 output_length = 4 * ((input_length + 2) / 3); 25 if (output_length > len) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Output length not large enough"); 26 27 for (i = 0, j = 0; i < input_length;) { 28 uint32_t octet_a = i < input_length ? (unsigned char)data[i++] : 0; 29 uint32_t octet_b = i < input_length ? (unsigned char)data[i++] : 0; 30 uint32_t octet_c = i < input_length ? (unsigned char)data[i++] : 0; 31 uint32_t triple = (octet_a << 0x10) + (octet_b << 0x08) + octet_c; 32 33 encoded_data[j++] = encoding_table[(triple >> 3 * 6) & 0x3F]; 34 encoded_data[j++] = encoding_table[(triple >> 2 * 6) & 0x3F]; 35 encoded_data[j++] = encoding_table[(triple >> 1 * 6) & 0x3F]; 36 encoded_data[j++] = encoding_table[(triple >> 0 * 6) & 0x3F]; 37 } 38 encoded_data[j] = 0; 39 for (i = 0; i < mod_table[input_length % 3]; i++) encoded_data[output_length - 1 - i] = '='; 40 PetscFunctionReturn(0); 41 } 42 43 PETSC_UNUSED static PetscErrorCode base64_decode(const unsigned char *data,unsigned char* decoded_data, size_t length) 44 { 45 static char decoding_table[257]; 46 static int decode_table_built = 0; 47 size_t i,j; 48 PetscErrorCode ierr; 49 size_t input_length,output_length; 50 51 PetscFunctionBegin; 52 if (!decode_table_built) { 53 for (i = 0; i < 64; i++) decoding_table[(unsigned char) encoding_table[i]] = i; 54 decode_table_built = 1; 55 } 56 57 ierr = PetscStrlen((const char*)data,&input_length);CHKERRQ(ierr); 58 if (input_length % 4 != 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Input length must be divisible by 4"); 59 60 output_length = input_length / 4 * 3; 61 if (data[input_length - 1] == '=') (output_length)--; 62 if (data[input_length - 2] == '=') (output_length)--; 63 if (output_length > length) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Output length too shore"); 64 65 for (i = 0, j = 0; i < input_length;) { 66 uint32_t sextet_a = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]]; 67 uint32_t sextet_b = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]]; 68 uint32_t sextet_c = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]]; 69 uint32_t sextet_d = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]]; 70 uint32_t triple = (sextet_a << 3 * 6) + (sextet_b << 2 * 6) + (sextet_c << 1 * 6) + (sextet_d << 0 * 6); 71 72 if (j < output_length) decoded_data[j++] = (triple >> 2 * 8) & 0xFF; 73 if (j < output_length) decoded_data[j++] = (triple >> 1 * 8) & 0xFF; 74 if (j < output_length) decoded_data[j++] = (triple >> 0 * 8) & 0xFF; 75 } 76 decoded_data[j] = 0; 77 PetscFunctionReturn(0); 78 } 79 80 #if defined(PETSC_HAVE_UNISTD_H) 81 #include <unistd.h> 82 #endif 83 84 #undef __FUNCT__ 85 #define __FUNCT__ "PetscGlobusAuthorize" 86 /*@C 87 PetscGlobusAuthorize - Get an access token allowing PETSc applications to make Globus file transfer requests 88 89 Not collective, only the first process in MPI_Comm does anything 90 91 Input Parameters: 92 + comm - the MPI communicator 93 - tokensize - size of the token array 94 95 Output Parameters: 96 . access_token - can be used with PetscGlobusUpLoad() for 30 days 97 98 Notes: This call requires stdout and stdin access from process 0 on the MPI communicator 99 100 You can run src/sys/webclient/examples/tutorials/globusobtainaccesstoken to get an access token 101 102 .seealso: PetscGoogleDriveRefresh(), PetscGoogleDriveUpload(), PetscURLShorten(), PetscGlobusUpload() 103 104 @*/ 105 PetscErrorCode PetscGlobusAuthorize(MPI_Comm comm,char access_token[],size_t tokensize) 106 { 107 SSL_CTX *ctx; 108 SSL *ssl; 109 int sock; 110 PetscErrorCode ierr; 111 char buff[8*1024],*ptr,head[1024]; 112 PetscMPIInt rank; 113 size_t len; 114 PetscBool found; 115 116 PetscFunctionBegin; 117 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 118 if (!rank) { 119 if (!isatty(fileno(PETSC_STDOUT))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Requires users input/output"); 120 ierr = PetscPrintf(comm,"Enter globus username:");CHKERRQ(ierr); 121 ptr = fgets(buff, 1024, stdin); 122 if (!ptr) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_FILE_READ, "Error reading from stdin: %d", errno); 123 ierr = PetscStrlen(buff,&len);CHKERRQ(ierr); 124 buff[len-1] = ':'; /* remove carriage return at end of line */ 125 126 ierr = PetscPrintf(comm,"Enter globus password:");CHKERRQ(ierr); 127 ptr = fgets(buff+len, 1024-len, stdin); 128 if (!ptr) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_FILE_READ, "Error reading from stdin: %d", errno); 129 ierr = PetscStrlen(buff,&len);CHKERRQ(ierr); 130 buff[len-1] = '\0'; /* remove carriage return at end of line */ 131 ierr = PetscStrcpy(head,"Authorization: Basic ");CHKERRQ(ierr); 132 ierr = base64_encode((const unsigned char*)buff,(unsigned char*)(head+21),sizeof(head)-21);CHKERRQ(ierr); 133 ierr = PetscStrcat(head,"\r\n");CHKERRQ(ierr); 134 135 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 136 ierr = PetscHTTPSConnect("nexus.api.globusonline.org",443,ctx,&sock,&ssl);CHKERRQ(ierr); 137 ierr = PetscHTTPSRequest("GET","nexus.api.globusonline.org/goauth/token?grant_type=client_credentials",head,"application/x-www-form-urlencoded",NULL,ssl,buff,sizeof(buff));CHKERRQ(ierr); 138 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 139 close(sock); 140 141 ierr = PetscPullJSONValue(buff,"access_token",access_token,tokensize,&found);CHKERRQ(ierr); 142 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Globus did not return access token"); 143 144 ierr = PetscPrintf(comm,"Here is your Globus access token, save it in a save place, in the future you can run PETSc\n");CHKERRQ(ierr); 145 ierr = PetscPrintf(comm,"programs with the option -globus_access_token %s\n",access_token);CHKERRQ(ierr); 146 ierr = PetscPrintf(comm,"to access Globus automatically\n");CHKERRQ(ierr); 147 } 148 PetscFunctionReturn(0); 149 } 150 151 152 #undef __FUNCT__ 153 #define __FUNCT__ "PetscGlobusGetTransfers" 154 /*@C 155 PetscGlobusGetTransfers - Get a record of current transfers requested from Globus 156 157 Not collective, only the first process in MPI_Comm does anything 158 159 Input Parameters: 160 + comm - the MPI communicator 161 . access_token - Globus access token, if NULL will check in options database for -globus_access_token XXX otherwise 162 will call PetscGlobusAuthorize(). 163 - buffsize - size of the buffer 164 165 Output Parameters: 166 . buff - location to put Globus information 167 168 .seealso: PetscGoogleDriveRefresh(), PetscGoogleDriveUpload(), PetscURLShorten(), PetscGlobusUpload(), PetscGlobusAuthorize() 169 170 @*/ 171 PetscErrorCode PetscGlobusGetTransfers(MPI_Comm comm,const char access_token[],char buff[],size_t buffsize) 172 { 173 SSL_CTX *ctx; 174 SSL *ssl; 175 int sock; 176 PetscErrorCode ierr; 177 char head[4096]; 178 PetscMPIInt rank; 179 180 PetscFunctionBegin; 181 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 182 if (!rank) { 183 ierr = PetscStrcpy(head,"Authorization : Globus-Goauthtoken ");CHKERRQ(ierr); 184 if (access_token) { 185 ierr = PetscStrcat(head,access_token);CHKERRQ(ierr); 186 } else { 187 PetscBool set; 188 char accesstoken[4096]; 189 ierr = PetscOptionsGetString(NULL,"-globus_access_token",accesstoken,sizeof(accesstoken),&set);CHKERRQ(ierr); 190 if (!set) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Pass in Globus accesstoken or use -globus_access_token XXX"); 191 ierr = PetscStrcat(head,accesstoken);CHKERRQ(ierr); 192 } 193 ierr = PetscStrcat(head,"\r\n");CHKERRQ(ierr); 194 195 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 196 ierr = PetscHTTPSConnect("transfer.api.globusonline.org",443,ctx,&sock,&ssl);CHKERRQ(ierr); 197 ierr = PetscHTTPSRequest("GET","transfer.api.globusonline.org/v0.10/tasksummary",head,"application/json",NULL,ssl,buff,buffsize);CHKERRQ(ierr); 198 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 199 close(sock); 200 } 201 PetscFunctionReturn(0); 202 } 203 204 #undef __FUNCT__ 205 #define __FUNCT__ "PetscGlobusUpload" 206 /*@C 207 PetscGlobusUpload - Loads a file to Globus 208 209 Not collective, only the first process in the MPI_Comm uploads the file 210 211 Input Parameters: 212 + comm - MPI communicator 213 . access_token - obtained with PetscGlobusAuthorize(), pass NULL to use -globus_access_token XXX from the PETSc database 214 - filename - file to upload 215 216 Options Database: 217 . -globus_access_token XXX 218 219 .seealso: PetscURLShorten(), PetscGoogleDriveAuthorize(), PetscGoogleDriveRefresh(), PetscGlobusAuthorize() 220 221 @*/ 222 PetscErrorCode PetscGlobusUpload(MPI_Comm comm,const char access_token[],const char filename[]) 223 { 224 SSL_CTX *ctx; 225 SSL *ssl; 226 int sock; 227 PetscErrorCode ierr; 228 char head[4096],buff[8*1024],body[4096],submission_id[4096]; 229 PetscMPIInt rank; 230 PetscBool flg,found; 231 232 PetscFunctionBegin; 233 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 234 if (!rank) { 235 ierr = PetscTestFile(filename,'r',&flg);CHKERRQ(ierr); 236 if (!flg) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Unable to find file: %s",filename); 237 238 ierr = PetscStrcpy(head,"Authorization : Globus-Goauthtoken ");CHKERRQ(ierr); 239 if (access_token) { 240 ierr = PetscStrcat(head,access_token);CHKERRQ(ierr); 241 } else { 242 PetscBool set; 243 char accesstoken[4096]; 244 ierr = PetscOptionsGetString(NULL,"-globus_access_token",accesstoken,sizeof(accesstoken),&set);CHKERRQ(ierr); 245 if (!set) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Pass in Globus accesstoken or use -globus_access_token XXX"); 246 ierr = PetscStrcat(head,accesstoken);CHKERRQ(ierr); 247 } 248 ierr = PetscStrcat(head,"\r\n");CHKERRQ(ierr); 249 250 /* Get Globus submission id */ 251 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 252 ierr = PetscHTTPSConnect("transfer.api.globusonline.org",443,ctx,&sock,&ssl);CHKERRQ(ierr); 253 ierr = PetscHTTPSRequest("GET","transfer.api.globusonline.org/v0.10/submission_id",head,"application/json",NULL,ssl,buff,sizeof(buff));CHKERRQ(ierr); 254 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 255 close(sock); 256 ierr = PetscPullJSONValue(buff,"value",submission_id,sizeof(submission_id),&found);CHKERRQ(ierr); 257 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Globus did not return submission id"); 258 259 /* build JSON body of transfer request */ 260 ierr = PetscStrcpy(body,"{");CHKERRQ(ierr); 261 ierr = PetscPushJSONValue(body,"submission_id",submission_id,sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 262 ierr = PetscPushJSONValue(body,"DATA_TYPE","transfer",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 263 ierr = PetscPushJSONValue(body,"sync_level","null",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 264 ierr = PetscPushJSONValue(body,"source_endpoint","barryfsmith#MacBookPro",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 265 ierr = PetscPushJSONValue(body,"label","PETSc transfer label",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 266 ierr = PetscPushJSONValue(body,"length","1",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 267 ierr = PetscPushJSONValue(body,"destination_endpoint","mcs#home",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 268 269 ierr = PetscStrcat(body,"\"DATA\": [ {");CHKERRQ(ierr); 270 ierr = PetscPushJSONValue(body,"source_path","/~/FEM_GPU.pdf",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 271 ierr = PetscPushJSONValue(body,"destination_path","/~/FEM_GPU.pdf",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 272 ierr = PetscPushJSONValue(body,"verify_size","null",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 273 ierr = PetscPushJSONValue(body,"recursive","false",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 274 ierr = PetscPushJSONValue(body,"DATA_TYPE","transfer_item",sizeof(body));CHKERRQ(ierr); 275 ierr = PetscStrcat(body,"} ] }");CHKERRQ(ierr); 276 277 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 278 ierr = PetscHTTPSConnect("transfer.api.globusonline.org",443,ctx,&sock,&ssl);CHKERRQ(ierr); 279 ierr = PetscHTTPSRequest("POST","transfer.api.globusonline.org/v0.10/transfer",head,"application/json",body,ssl,buff,sizeof(buff));CHKERRQ(ierr); 280 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 281 close(sock); 282 ierr = PetscPullJSONValue(buff,"code",submission_id,sizeof(submission_id),&found);CHKERRQ(ierr); 283 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Globus did not return code on transfer"); 284 ierr = PetscStrcmp(submission_id,"Accepted",&found);CHKERRQ(ierr); 285 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Globus did not accept transfer"); 286 } 287 PetscFunctionReturn(0); 288 } 289 290 291