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