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