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