1 #include <petscwebclient.h> 2 #pragma clang diagnostic ignored "-Wdeprecated-declarations" 3 #pragma gcc diagnostic ignored "-Wdeprecated-declarations" 4 5 /* 6 Encodes and decodes from MIME Base64 7 */ 8 static char encoding_table[] = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 9 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 10 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 11 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 12 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 13 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 14 'w', 'x', 'y', 'z', '0', '1', '2', '3', 15 '4', '5', '6', '7', '8', '9', '+', '/'}; 16 17 static PetscErrorCode base64_encode(const unsigned char *data,unsigned char *encoded_data,size_t len) 18 { 19 static size_t mod_table[] = {0, 2, 1}; 20 size_t i,j; 21 size_t input_length,output_length; 22 PetscErrorCode ierr; 23 24 PetscFunctionBegin; 25 ierr = PetscStrlen((const char*)data,&input_length);CHKERRQ(ierr); 26 output_length = 4 * ((input_length + 2) / 3); 27 if (output_length > len) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Output length not large enough"); 28 29 for (i = 0, j = 0; i < input_length;) { 30 uint32_t octet_a = i < input_length ? (unsigned char)data[i++] : 0; 31 uint32_t octet_b = i < input_length ? (unsigned char)data[i++] : 0; 32 uint32_t octet_c = i < input_length ? (unsigned char)data[i++] : 0; 33 uint32_t triple = (octet_a << 0x10) + (octet_b << 0x08) + octet_c; 34 35 encoded_data[j++] = encoding_table[(triple >> 3 * 6) & 0x3F]; 36 encoded_data[j++] = encoding_table[(triple >> 2 * 6) & 0x3F]; 37 encoded_data[j++] = encoding_table[(triple >> 1 * 6) & 0x3F]; 38 encoded_data[j++] = encoding_table[(triple >> 0 * 6) & 0x3F]; 39 } 40 encoded_data[j] = 0; 41 for (i = 0; i < mod_table[input_length % 3]; i++) encoded_data[output_length - 1 - i] = '='; 42 PetscFunctionReturn(0); 43 } 44 45 PETSC_UNUSED static PetscErrorCode base64_decode(const unsigned char *data,unsigned char* decoded_data, size_t length) 46 { 47 static char decoding_table[257]; 48 static int decode_table_built = 0; 49 size_t i,j; 50 PetscErrorCode ierr; 51 size_t input_length,output_length; 52 53 PetscFunctionBegin; 54 if (!decode_table_built) { 55 for (i = 0; i < 64; i++) decoding_table[(unsigned char) encoding_table[i]] = i; 56 decode_table_built = 1; 57 } 58 59 ierr = PetscStrlen((const char*)data,&input_length);CHKERRQ(ierr); 60 if (input_length % 4 != 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Input length must be divisible by 4"); 61 62 output_length = input_length / 4 * 3; 63 if (data[input_length - 1] == '=') (output_length)--; 64 if (data[input_length - 2] == '=') (output_length)--; 65 if (output_length > length) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Output length too shore"); 66 67 for (i = 0, j = 0; i < input_length;) { 68 uint32_t sextet_a = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]]; 69 uint32_t sextet_b = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]]; 70 uint32_t sextet_c = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]]; 71 uint32_t sextet_d = data[i] == '=' ? 0 & i++ : decoding_table[(int)data[i++]]; 72 uint32_t triple = (sextet_a << 3 * 6) + (sextet_b << 2 * 6) + (sextet_c << 1 * 6) + (sextet_d << 0 * 6); 73 74 if (j < output_length) decoded_data[j++] = (triple >> 2 * 8) & 0xFF; 75 if (j < output_length) decoded_data[j++] = (triple >> 1 * 8) & 0xFF; 76 if (j < output_length) decoded_data[j++] = (triple >> 0 * 8) & 0xFF; 77 } 78 decoded_data[j] = 0; 79 PetscFunctionReturn(0); 80 } 81 82 #if defined(PETSC_HAVE_UNISTD_H) 83 #include <unistd.h> 84 #endif 85 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 Level: intermediate 103 104 .seealso: PetscGoogleDriveRefresh(), PetscGoogleDriveUpload(), PetscURLShorten(), PetscGlobusUpload() 105 106 @*/ 107 PetscErrorCode PetscGlobusAuthorize(MPI_Comm comm,char access_token[],size_t tokensize) 108 { 109 SSL_CTX *ctx; 110 SSL *ssl; 111 int sock; 112 PetscErrorCode ierr; 113 char buff[8*1024],*ptr,head[1024]; 114 PetscMPIInt rank; 115 size_t len; 116 PetscBool found; 117 118 PetscFunctionBegin; 119 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 120 if (!rank) { 121 if (!isatty(fileno(PETSC_STDOUT))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Requires users input/output"); 122 ierr = PetscPrintf(comm,"Enter globus username:");CHKERRQ(ierr); 123 ptr = fgets(buff, 1024, stdin); 124 if (!ptr) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_FILE_READ, "Error reading from stdin: %d", errno); 125 ierr = PetscStrlen(buff,&len);CHKERRQ(ierr); 126 buff[len-1] = ':'; /* remove carriage return at end of line */ 127 128 ierr = PetscPrintf(comm,"Enter globus password:");CHKERRQ(ierr); 129 ptr = fgets(buff+len, 1024-len, stdin); 130 if (!ptr) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_FILE_READ, "Error reading from stdin: %d", errno); 131 ierr = PetscStrlen(buff,&len);CHKERRQ(ierr); 132 buff[len-1] = '\0'; /* remove carriage return at end of line */ 133 ierr = PetscStrcpy(head,"Authorization: Basic ");CHKERRQ(ierr); 134 ierr = base64_encode((const unsigned char*)buff,(unsigned char*)(head+21),sizeof(head)-21);CHKERRQ(ierr); 135 ierr = PetscStrcat(head,"\r\n");CHKERRQ(ierr); 136 137 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 138 ierr = PetscHTTPSConnect("nexus.api.globusonline.org",443,ctx,&sock,&ssl);CHKERRQ(ierr); 139 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); 140 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 141 close(sock); 142 143 ierr = PetscPullJSONValue(buff,"access_token",access_token,tokensize,&found);CHKERRQ(ierr); 144 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Globus did not return access token"); 145 146 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); 147 ierr = PetscPrintf(comm,"programs with the option -globus_access_token %s\n",access_token);CHKERRQ(ierr); 148 ierr = PetscPrintf(comm,"to access Globus automatically\n");CHKERRQ(ierr); 149 } 150 PetscFunctionReturn(0); 151 } 152 153 154 /*@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 Level: intermediate 169 170 .seealso: PetscGoogleDriveRefresh(), PetscGoogleDriveUpload(), PetscURLShorten(), PetscGlobusUpload(), PetscGlobusAuthorize() 171 172 @*/ 173 PetscErrorCode PetscGlobusGetTransfers(MPI_Comm comm,const char access_token[],char buff[],size_t buffsize) 174 { 175 SSL_CTX *ctx; 176 SSL *ssl; 177 int sock; 178 PetscErrorCode ierr; 179 char head[4096]; 180 PetscMPIInt rank; 181 182 PetscFunctionBegin; 183 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 184 if (!rank) { 185 ierr = PetscStrcpy(head,"Authorization : Globus-Goauthtoken ");CHKERRQ(ierr); 186 if (access_token) { 187 ierr = PetscStrcat(head,access_token);CHKERRQ(ierr); 188 } else { 189 PetscBool set; 190 char accesstoken[4096]; 191 ierr = PetscOptionsGetString(NULL,NULL,"-globus_access_token",accesstoken,sizeof(accesstoken),&set);CHKERRQ(ierr); 192 if (!set) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Pass in Globus accesstoken or use -globus_access_token XXX"); 193 ierr = PetscStrcat(head,accesstoken);CHKERRQ(ierr); 194 } 195 ierr = PetscStrcat(head,"\r\n");CHKERRQ(ierr); 196 197 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 198 ierr = PetscHTTPSConnect("transfer.api.globusonline.org",443,ctx,&sock,&ssl);CHKERRQ(ierr); 199 ierr = PetscHTTPSRequest("GET","transfer.api.globusonline.org/v0.10/tasksummary",head,"application/json",NULL,ssl,buff,buffsize);CHKERRQ(ierr); 200 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 201 close(sock); 202 } 203 PetscFunctionReturn(0); 204 } 205 206 /*@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 Level: intermediate 220 221 .seealso: PetscURLShorten(), PetscGoogleDriveAuthorize(), PetscGoogleDriveRefresh(), PetscGlobusAuthorize() 222 223 @*/ 224 PetscErrorCode PetscGlobusUpload(MPI_Comm comm,const char access_token[],const char filename[]) 225 { 226 SSL_CTX *ctx; 227 SSL *ssl; 228 int sock; 229 PetscErrorCode ierr; 230 char head[4096],buff[8*1024],body[4096],submission_id[4096]; 231 PetscMPIInt rank; 232 PetscBool flg,found; 233 234 PetscFunctionBegin; 235 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 236 if (!rank) { 237 ierr = PetscTestFile(filename,'r',&flg);CHKERRQ(ierr); 238 if (!flg) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Unable to find file: %s",filename); 239 240 ierr = PetscStrcpy(head,"Authorization : Globus-Goauthtoken ");CHKERRQ(ierr); 241 if (access_token) { 242 ierr = PetscStrcat(head,access_token);CHKERRQ(ierr); 243 } else { 244 PetscBool set; 245 char accesstoken[4096]; 246 ierr = PetscOptionsGetString(NULL,NULL,"-globus_access_token",accesstoken,sizeof(accesstoken),&set);CHKERRQ(ierr); 247 if (!set) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Pass in Globus accesstoken or use -globus_access_token XXX"); 248 ierr = PetscStrcat(head,accesstoken);CHKERRQ(ierr); 249 } 250 ierr = PetscStrcat(head,"\r\n");CHKERRQ(ierr); 251 252 /* Get Globus submission id */ 253 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 254 ierr = PetscHTTPSConnect("transfer.api.globusonline.org",443,ctx,&sock,&ssl);CHKERRQ(ierr); 255 ierr = PetscHTTPSRequest("GET","transfer.api.globusonline.org/v0.10/submission_id",head,"application/json",NULL,ssl,buff,sizeof(buff));CHKERRQ(ierr); 256 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 257 close(sock); 258 ierr = PetscPullJSONValue(buff,"value",submission_id,sizeof(submission_id),&found);CHKERRQ(ierr); 259 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Globus did not return submission id"); 260 261 /* build JSON body of transfer request */ 262 ierr = PetscStrcpy(body,"{");CHKERRQ(ierr); 263 ierr = PetscPushJSONValue(body,"submission_id",submission_id,sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 264 ierr = PetscPushJSONValue(body,"DATA_TYPE","transfer",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 265 ierr = PetscPushJSONValue(body,"sync_level","null",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 266 ierr = PetscPushJSONValue(body,"source_endpoint","barryfsmith#MacBookPro",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 267 ierr = PetscPushJSONValue(body,"label","PETSc transfer label",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 268 ierr = PetscPushJSONValue(body,"length","1",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 269 ierr = PetscPushJSONValue(body,"destination_endpoint","mcs#home",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 270 271 ierr = PetscStrcat(body,"\"DATA\": [ {");CHKERRQ(ierr); 272 ierr = PetscPushJSONValue(body,"source_path","/~/FEM_GPU.pdf",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 273 ierr = PetscPushJSONValue(body,"destination_path","/~/FEM_GPU.pdf",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 274 ierr = PetscPushJSONValue(body,"verify_size","null",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 275 ierr = PetscPushJSONValue(body,"recursive","false",sizeof(body));CHKERRQ(ierr); ierr = PetscStrcat(body,",");CHKERRQ(ierr); 276 ierr = PetscPushJSONValue(body,"DATA_TYPE","transfer_item",sizeof(body));CHKERRQ(ierr); 277 ierr = PetscStrcat(body,"} ] }");CHKERRQ(ierr); 278 279 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 280 ierr = PetscHTTPSConnect("transfer.api.globusonline.org",443,ctx,&sock,&ssl);CHKERRQ(ierr); 281 ierr = PetscHTTPSRequest("POST","transfer.api.globusonline.org/v0.10/transfer",head,"application/json",body,ssl,buff,sizeof(buff));CHKERRQ(ierr); 282 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 283 close(sock); 284 ierr = PetscPullJSONValue(buff,"code",submission_id,sizeof(submission_id),&found);CHKERRQ(ierr); 285 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Globus did not return code on transfer"); 286 ierr = PetscStrcmp(submission_id,"Accepted",&found);CHKERRQ(ierr); 287 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Globus did not accept transfer"); 288 } 289 PetscFunctionReturn(0); 290 } 291 292 293