1 2 #include <petscwebclient.h> 3 #pragma clang diagnostic ignored "-Wdeprecated-declarations" 4 #pragma gcc diagnostic ignored "-Wdeprecated-declarations" 5 6 /* 7 These variables identify the code as a PETSc application to Google. 8 9 See - https://stackoverflow.com/questions/4616553/using-oauth-in-free-open-source-software 10 Users can get their own application IDs - https://code.google.com/p/google-apps-manager/wiki/GettingAnOAuthConsoleKey 11 12 */ 13 #define PETSC_GOOGLE_CLIENT_ID "521429262559-i19i57eek8tnt9ftpp4p91rcl0bo9ag5.apps.googleusercontent.com" 14 #define PETSC_GOOGLE_CLIENT_ST "vOds_A71I3_S_aHMq_kZAI0t" 15 #define PETSC_GOOGLE_API_KEY "AIzaSyDRZsOcySpWVzsUvIBL2UG3J2tcg-MXbyk" 16 17 /*@C 18 PetscGoogleDriveRefresh - Get a new authorization token for accessing Google drive from PETSc from a refresh token 19 20 Not collective, only the first process in the `MPI_Comm` does anything 21 22 Input Parameters: 23 + comm - MPI communicator 24 . refresh token - obtained with `PetscGoogleDriveAuthorize()`, if NULL PETSc will first look for one in the options data 25 if not found it will call `PetscGoogleDriveAuthorize()` 26 - tokensize - size of the output string access_token 27 28 Output Parameter: 29 . access_token - token that can be passed to `PetscGoogleDriveUpload()` 30 31 Options Database Key: 32 . -google_refresh_token XXX - where XXX was obtained from `PetscGoogleDriveAuthorize()` 33 34 Level: intermediate 35 36 .seealso: `PetscURLShorten()`, `PetscGoogleDriveAuthorize()`, `PetscGoogleDriveUpload()` 37 @*/ 38 PetscErrorCode PetscGoogleDriveRefresh(MPI_Comm comm, const char refresh_token[], char access_token[], size_t tokensize) 39 { 40 SSL_CTX *ctx; 41 SSL *ssl; 42 int sock; 43 char buff[8 * 1024], body[1024]; 44 PetscMPIInt rank; 45 char *refreshtoken = (char *)refresh_token; 46 PetscBool found; 47 48 PetscFunctionBegin; 49 PetscCallMPI(MPI_Comm_rank(comm, &rank)); 50 if (rank == 0) { 51 if (!refresh_token) { 52 PetscBool set; 53 PetscCall(PetscMalloc1(512, &refreshtoken)); 54 PetscCall(PetscOptionsGetString(NULL, NULL, "-google_refresh_token", refreshtoken, sizeof(refreshtoken), &set)); 55 if (!set) { 56 PetscCall(PetscGoogleDriveAuthorize(comm, access_token, refreshtoken, 512 * sizeof(char))); 57 PetscCall(PetscFree(refreshtoken)); 58 PetscFunctionReturn(0); 59 } 60 } 61 PetscCall(PetscSSLInitializeContext(&ctx)); 62 PetscCall(PetscHTTPSConnect("accounts.google.com", 443, ctx, &sock, &ssl)); 63 PetscCall(PetscStrcpy(body, "client_id=")); 64 PetscCall(PetscStrcat(body, PETSC_GOOGLE_CLIENT_ID)); 65 PetscCall(PetscStrcat(body, "&client_secret=")); 66 PetscCall(PetscStrcat(body, PETSC_GOOGLE_CLIENT_ST)); 67 PetscCall(PetscStrcat(body, "&refresh_token=")); 68 PetscCall(PetscStrcat(body, refreshtoken)); 69 if (!refresh_token) PetscCall(PetscFree(refreshtoken)); 70 PetscCall(PetscStrcat(body, "&grant_type=refresh_token")); 71 72 PetscCall(PetscHTTPSRequest("POST", "accounts.google.com/o/oauth2/token", NULL, "application/x-www-form-urlencoded", body, ssl, buff, sizeof(buff))); 73 PetscCall(PetscSSLDestroyContext(ctx)); 74 close(sock); 75 76 PetscCall(PetscPullJSONValue(buff, "access_token", access_token, tokensize, &found)); 77 PetscCheck(found, PETSC_COMM_SELF, PETSC_ERR_LIB, "Google drive did not return access_token"); 78 } 79 PetscFunctionReturn(0); 80 } 81 82 #include <sys/stat.h> 83 84 /*@C 85 PetscGoogleDriveUpload - Loads a file to the Google Drive 86 87 Not collective, only the first process in the `MPI_Comm` uploads the file 88 89 Input Parameters: 90 + comm - MPI communicator 91 . access_token - obtained with PetscGoogleDriveRefresh(), pass NULL to have PETSc generate one 92 - filename - file to upload; if you upload multiple times it will have different names each time on Google Drive 93 94 Options Database Key: 95 . -google_refresh_token XXX - pass the access token for the operation 96 97 Usage Patterns: 98 .vb 99 With PETSc option -google_refresh_token XXX given 100 PetscGoogleDriveUpload(comm,NULL,filename); will upload file with no user interaction 101 102 Without PETSc option -google_refresh_token XXX given 103 PetscGoogleDriveUpload(comm,NULL,filename); for first use will prompt user to authorize access to Google Drive with their browser 104 105 With PETSc option -google_refresh_token XXX given 106 PetscGoogleDriveRefresh(comm,NULL,access_token,sizeof(access_token)); 107 PetscGoogleDriveUpload(comm,access_token,filename); 108 109 With refresh token entered in some way by the user 110 PetscGoogleDriveRefresh(comm,refresh_token,access_token,sizeof(access_token)); 111 PetscGoogleDriveUpload(comm,access_token,filename); 112 113 PetscGoogleDriveAuthorize(comm,access_token,refresh_token,sizeof(access_token)); 114 PetscGoogleDriveUpload(comm,access_token,filename); 115 .ve 116 117 Level: intermediate 118 119 .seealso: `PetscURLShorten()`, `PetscGoogleDriveAuthorize()`, `PetscGoogleDriveRefresh()` 120 @*/ 121 PetscErrorCode PetscGoogleDriveUpload(MPI_Comm comm, const char access_token[], const char filename[]) 122 { 123 SSL_CTX *ctx; 124 SSL *ssl; 125 int sock; 126 char head[1024], buff[8 * 1024], *body, *title; 127 PetscMPIInt rank; 128 struct stat sb; 129 size_t len, blen, rd; 130 FILE *fd; 131 int err; 132 133 PetscFunctionBegin; 134 PetscCallMPI(MPI_Comm_rank(comm, &rank)); 135 if (rank == 0) { 136 PetscCall(PetscStrcpy(head, "Authorization: Bearer ")); 137 PetscCall(PetscStrcat(head, access_token)); 138 PetscCall(PetscStrcat(head, "\r\n")); 139 PetscCall(PetscStrcat(head, "uploadType: multipart\r\n")); 140 141 err = stat(filename, &sb); 142 PetscCheck(!err, PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN, "Unable to stat file: %s", filename); 143 len = 1024 + sb.st_size; 144 PetscCall(PetscMalloc1(len, &body)); 145 PetscCall(PetscStrcpy(body, "--foo_bar_baz\r\n" 146 "Content-Type: application/json\r\n\r\n" 147 "{")); 148 PetscCall(PetscPushJSONValue(body, "title", filename, len)); 149 PetscCall(PetscStrcat(body, ",")); 150 PetscCall(PetscPushJSONValue(body, "mimeType", "text.html", len)); 151 PetscCall(PetscStrcat(body, ",")); 152 PetscCall(PetscPushJSONValue(body, "description", "a file", len)); 153 PetscCall(PetscStrcat(body, "}\r\n\r\n" 154 "--foo_bar_baz\r\n" 155 "Content-Type: text/html\r\n\r\n")); 156 PetscCall(PetscStrlen(body, &blen)); 157 fd = fopen(filename, "r"); 158 PetscCheck(fd, PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN, "Unable to open file: %s", filename); 159 rd = fread(body + blen, sizeof(unsigned char), sb.st_size, fd); 160 PetscCheck(rd == (size_t)sb.st_size, PETSC_COMM_SELF, PETSC_ERR_FILE_OPEN, "Unable to read entire file: %s %d %d", filename, (int)rd, (int)sb.st_size); 161 fclose(fd); 162 body[blen + rd] = 0; 163 PetscCall(PetscStrcat(body, "\r\n\r\n" 164 "--foo_bar_baz\r\n")); 165 PetscCall(PetscSSLInitializeContext(&ctx)); 166 PetscCall(PetscHTTPSConnect("www.googleapis.com", 443, ctx, &sock, &ssl)); 167 PetscCall(PetscHTTPSRequest("POST", "www.googleapis.com/upload/drive/v2/files/", head, "multipart/related; boundary=\"foo_bar_baz\"", body, ssl, buff, sizeof(buff))); 168 PetscCall(PetscFree(body)); 169 PetscCall(PetscSSLDestroyContext(ctx)); 170 close(sock); 171 PetscCall(PetscStrstr(buff, "\"title\"", &title)); 172 PetscCheck(title, PETSC_COMM_SELF, PETSC_ERR_LIB, "Upload of file %s failed", filename); 173 } 174 PetscFunctionReturn(0); 175 } 176 177 #if defined(PETSC_HAVE_UNISTD_H) 178 #include <unistd.h> 179 #endif 180 181 /*@C 182 PetscGoogleDriveAuthorize - Get authorization and refresh token for accessing Google drive from PETSc 183 184 Not collective, only the first process in `MPI_Comm` does anything 185 186 Input Parameters: 187 + comm - the MPI communicator 188 - tokensize - size of the token arrays 189 190 Output Parameters: 191 + access_token - can be used with `PetscGoogleDriveUpload()` for this one session 192 - refresh_token - can be used for ever to obtain new access_tokens with `PetscGoogleDriveRefresh()`, guard this like a password 193 it gives access to your Google Drive 194 195 Notes: 196 This call requires stdout and stdin access from process 0 on the MPI communicator 197 198 You can run src/sys/webclient/tutorials/googleobtainrefreshtoken to get a refresh token and then in the future pass it to 199 PETSc programs with -google_refresh_token XXX 200 201 Level: intermediate 202 203 .seealso: `PetscGoogleDriveRefresh()`, `PetscGoogleDriveUpload()`, `PetscURLShorten()` 204 @*/ 205 PetscErrorCode PetscGoogleDriveAuthorize(MPI_Comm comm, char access_token[], char refresh_token[], size_t tokensize) 206 { 207 SSL_CTX *ctx; 208 SSL *ssl; 209 int sock; 210 char buff[8 * 1024], *ptr, body[1024]; 211 PetscMPIInt rank; 212 size_t len; 213 PetscBool found; 214 215 PetscFunctionBegin; 216 PetscCallMPI(MPI_Comm_rank(comm, &rank)); 217 if (rank == 0) { 218 PetscCheck(isatty(fileno(PETSC_STDOUT)), PETSC_COMM_SELF, PETSC_ERR_USER, "Requires users input/output"); 219 PetscCall(PetscPrintf(comm, "Cut and paste the following into your browser:\n\n" 220 "https://accounts.google.com/o/oauth2/auth?" 221 "scope=https%%3A%%2F%%2Fwww.googleapis.com%%2Fauth%%2Fdrive.file&" 222 "redirect_uri=urn:ietf:wg:oauth:2.0:oob&" 223 "response_type=code&" 224 "client_id=" PETSC_GOOGLE_CLIENT_ID "\n\n")); 225 PetscCall(PetscPrintf(comm, "Paste the result here:")); 226 ptr = fgets(buff, 1024, stdin); 227 PetscCheck(ptr, PETSC_COMM_SELF, PETSC_ERR_FILE_READ, "Error reading from stdin: %d", errno); 228 PetscCall(PetscStrlen(buff, &len)); 229 buff[len - 1] = 0; /* remove carriage return at end of line */ 230 231 PetscCall(PetscSSLInitializeContext(&ctx)); 232 PetscCall(PetscHTTPSConnect("accounts.google.com", 443, ctx, &sock, &ssl)); 233 PetscCall(PetscStrcpy(body, "code=")); 234 PetscCall(PetscStrcat(body, buff)); 235 PetscCall(PetscStrcat(body, "&client_id=")); 236 PetscCall(PetscStrcat(body, PETSC_GOOGLE_CLIENT_ID)); 237 PetscCall(PetscStrcat(body, "&client_secret=")); 238 PetscCall(PetscStrcat(body, PETSC_GOOGLE_CLIENT_ST)); 239 PetscCall(PetscStrcat(body, "&redirect_uri=urn:ietf:wg:oauth:2.0:oob&")); 240 PetscCall(PetscStrcat(body, "grant_type=authorization_code")); 241 242 PetscCall(PetscHTTPSRequest("POST", "accounts.google.com/o/oauth2/token", NULL, "application/x-www-form-urlencoded", body, ssl, buff, sizeof(buff))); 243 PetscCall(PetscSSLDestroyContext(ctx)); 244 close(sock); 245 246 PetscCall(PetscPullJSONValue(buff, "access_token", access_token, tokensize, &found)); 247 PetscCheck(found, PETSC_COMM_SELF, PETSC_ERR_LIB, "Google drive did not return access_token"); 248 PetscCall(PetscPullJSONValue(buff, "refresh_token", refresh_token, tokensize, &found)); 249 PetscCheck(found, PETSC_COMM_SELF, PETSC_ERR_LIB, "Google drive did not return refresh_token"); 250 251 PetscCall(PetscPrintf(comm, "Here is your Google refresh token, save it in a save place, in the future you can run PETSc\n")); 252 PetscCall(PetscPrintf(comm, "programs with the option -google_refresh_token %s\n", refresh_token)); 253 PetscCall(PetscPrintf(comm, "to access Google Drive automatically\n")); 254 } 255 PetscFunctionReturn(0); 256 } 257 258 /*@C 259 PetscURLShorten - Uses Google's service to get a short url for a long url 260 261 Input Parameters: 262 + url - long URL you want shortened 263 - lenshorturl - length of buffer to contain short URL 264 265 Output Parameter: 266 . shorturl - the shortened URL 267 268 Level: intermediate 269 270 Note: 271 Google no longer provides this service so this routine will no longer function 272 273 .seealso: `PetscGoogleDriveRefresh()`, `PetscGoogleDriveUpload()`, `PetscGoogleDriveAuthorize()` 274 @*/ 275 PetscErrorCode PetscURLShorten(const char url[], char shorturl[], size_t lenshorturl) 276 { 277 SSL_CTX *ctx; 278 SSL *ssl; 279 int sock; 280 char buff[1024], body[512], post[1024]; 281 PetscBool found; 282 283 PetscFunctionBegin; 284 PetscCall(PetscSSLInitializeContext(&ctx)); 285 PetscCall(PetscHTTPSConnect("www.googleapis.com", 443, ctx, &sock, &ssl)); 286 PetscCall(PetscStrcpy(body, "{")); 287 PetscCall(PetscPushJSONValue(body, "longUrl", url, sizeof(body) - 2)); 288 PetscCall(PetscStrcat(body, "}")); 289 PetscCall(PetscSNPrintf(post, sizeof(post), "www.googleapis.com/urlshortener/v1/url?key=%s", PETSC_GOOGLE_API_KEY)); 290 PetscCall(PetscHTTPSRequest("POST", post, NULL, "application/json", body, ssl, buff, sizeof(buff))); 291 PetscCall(PetscSSLDestroyContext(ctx)); 292 close(sock); 293 294 PetscCall(PetscPullJSONValue(buff, "id", shorturl, lenshorturl, &found)); 295 PetscCheck(found, PETSC_COMM_SELF, PETSC_ERR_LIB, "Google drive did not return short URL"); 296 PetscFunctionReturn(0); 297 } 298