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 - http://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 16 17 #undef __FUNCT__ 18 #define __FUNCT__ "PetscGoogleDriveRefresh" 19 /*@C 20 PetscGoogleDriveRefresh - Get a new authorization token for accessing Google drive from PETSc from a refresh token 21 22 Not collective, only the first process in the MPI_Comm does anything 23 24 Input Parameters: 25 + comm - MPI communicator 26 . refresh token - obtained with PetscGoogleDriveAuthorize(), if NULL PETSc will first look for one in the options data 27 if not found it will call PetscGoogleDriveAuthorize() 28 - tokensize - size of the output string access_token 29 30 Output Parameter: 31 . access_token - token that can be passed to PetscGoogleDriveUpload() 32 33 Options Database: 34 . -google_refresh_token XXX where XXX was obtained from PetscGoogleDriveAuthorize() 35 36 Level: intermediate 37 38 .seealso: PetscURLShorten(), PetscGoogleDriveAuthorize(), PetscGoogleDriveUpload() 39 40 @*/ 41 PetscErrorCode PetscGoogleDriveRefresh(MPI_Comm comm,const char refresh_token[],char access_token[],size_t tokensize) 42 { 43 SSL_CTX *ctx; 44 SSL *ssl; 45 int sock; 46 PetscErrorCode ierr; 47 char buff[8*1024],body[1024]; 48 PetscMPIInt rank; 49 char *refreshtoken = (char*)refresh_token; 50 PetscBool found; 51 52 PetscFunctionBegin; 53 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 54 if (!rank) { 55 if (!refresh_token) { 56 PetscBool set; 57 ierr = PetscMalloc1(512,&refreshtoken);CHKERRQ(ierr); 58 ierr = PetscOptionsGetString(NULL,"-google_refresh_token",refreshtoken,512,&set);CHKERRQ(ierr); 59 if (!set) { 60 ierr = PetscGoogleDriveAuthorize(comm,access_token,refreshtoken,512*sizeof(char));CHKERRQ(ierr); 61 ierr = PetscFree(refreshtoken);CHKERRQ(ierr); 62 PetscFunctionReturn(0); 63 } 64 } 65 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 66 ierr = PetscHTTPSConnect("accounts.google.com",443,ctx,&sock,&ssl);CHKERRQ(ierr); 67 ierr = PetscStrcpy(body,"client_id=");CHKERRQ(ierr); 68 ierr = PetscStrcat(body,PETSC_GOOGLE_CLIENT_ID);CHKERRQ(ierr); 69 ierr = PetscStrcat(body,"&client_secret=");CHKERRQ(ierr); 70 ierr = PetscStrcat(body,PETSC_GOOGLE_CLIENT_ST);CHKERRQ(ierr); 71 ierr = PetscStrcat(body,"&refresh_token=");CHKERRQ(ierr); 72 ierr = PetscStrcat(body,refreshtoken);CHKERRQ(ierr); 73 if (!refresh_token) {ierr = PetscFree(refreshtoken);CHKERRQ(ierr);} 74 ierr = PetscStrcat(body,"&grant_type=refresh_token");CHKERRQ(ierr); 75 76 ierr = PetscHTTPSRequest("POST","accounts.google.com/o/oauth2/token",NULL,"application/x-www-form-urlencoded",body,ssl,buff,sizeof(buff));CHKERRQ(ierr); 77 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 78 close(sock); 79 80 ierr = PetscPullJSONValue(buff,"access_token",access_token,tokensize,&found);CHKERRQ(ierr); 81 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return access_token"); 82 } 83 PetscFunctionReturn(0); 84 } 85 86 #include <sys/stat.h> 87 88 #undef __FUNCT__ 89 #define __FUNCT__ "PetscGoogleDriveUpload" 90 /*@C 91 PetscGoogleDriveUpload - Loads a file to the Google Drive 92 93 Not collective, only the first process in the MPI_Comm uploads the file 94 95 Input Parameters: 96 + comm - MPI communicator 97 . access_token - obtained with PetscGoogleDriveRefresh(), pass NULL to have PETSc generate one 98 - filename - file to upload; if you upload multiple times it will have different names each time on Google Drive 99 100 Options Database: 101 . -google_refresh_token XXX 102 103 Usage Patterns: 104 With PETSc option -google_refresh_token XXX given 105 PetscGoogleDriveUpload(comm,NULL,filename); will upload file with no user interaction 106 107 Without PETSc option -google_refresh_token XXX given 108 PetscGoogleDriveUpload(comm,NULL,filename); for first use will prompt user to authorize access to Google Drive with their processor 109 110 With PETSc option -google_refresh_token XXX given 111 PetscGoogleDriveRefresh(comm,NULL,access_token,sizeof(access_token)); 112 PetscGoogleDriveUpload(comm,access_token,filename); 113 114 With refresh token entered in some way by the user 115 PetscGoogleDriveRefresh(comm,refresh_token,access_token,sizeof(access_token)); 116 PetscGoogleDriveUpload(comm,access_token,filename); 117 118 PetscGoogleDriveAuthorize(comm,access_token,refresh_token,sizeof(access_token)); 119 PetscGoogleDriveUpload(comm,access_token,filename); 120 121 Level: intermediate 122 123 .seealso: PetscURLShorten(), PetscGoogleDriveAuthorize(), PetscGoogleDriveRefresh() 124 125 @*/ 126 PetscErrorCode PetscGoogleDriveUpload(MPI_Comm comm,const char access_token[],const char filename[]) 127 { 128 SSL_CTX *ctx; 129 SSL *ssl; 130 int sock; 131 PetscErrorCode ierr; 132 char head[1024],buff[8*1024],*body,*title; 133 PetscMPIInt rank; 134 struct stat sb; 135 size_t len,blen,rd; 136 FILE *fd; 137 138 PetscFunctionBegin; 139 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 140 if (!rank) { 141 ierr = PetscStrcpy(head,"Authorization: Bearer ");CHKERRQ(ierr); 142 ierr = PetscStrcat(head,access_token);CHKERRQ(ierr); 143 ierr = PetscStrcat(head,"\r\n");CHKERRQ(ierr); 144 ierr = PetscStrcat(head,"uploadType: multipart\r\n");CHKERRQ(ierr); 145 146 ierr = stat(filename,&sb); 147 if (ierr) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Unable to stat file: %s",filename); 148 len = 1024 + sb.st_size; 149 ierr = PetscMalloc1(len,&body);CHKERRQ(ierr); 150 ierr = PetscStrcpy(body,"--foo_bar_baz\r\n" 151 "Content-Type: application/json\r\n\r\n" 152 "{");CHKERRQ(ierr); 153 ierr = PetscPushJSONValue(body,"title",filename,len);CHKERRQ(ierr); 154 ierr = PetscStrcat(body,",");CHKERRQ(ierr); 155 ierr = PetscPushJSONValue(body,"mimeType","text.html",len);CHKERRQ(ierr); 156 ierr = PetscStrcat(body,",");CHKERRQ(ierr); 157 ierr = PetscPushJSONValue(body,"description","a file",len);CHKERRQ(ierr); 158 ierr = PetscStrcat(body,"}\r\n\r\n" 159 "--foo_bar_baz\r\n" 160 "Content-Type: text/html\r\n\r\n");CHKERRQ(ierr); 161 ierr = PetscStrlen(body,&blen);CHKERRQ(ierr); 162 fd = fopen (filename, "r"); 163 if (!fd) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Unable to open file: %s",filename); 164 rd = fread (body+blen, sizeof (unsigned char), sb.st_size, fd); 165 if (rd != (size_t) sb.st_size) SETERRQ3(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Unable to read entire file: %s %d %d",filename,(int)rd,sb.st_size); 166 fclose(fd); 167 body[blen + rd] = 0; 168 ierr = PetscStrcat(body,"\r\n\r\n" 169 "--foo_bar_baz\r\n");CHKERRQ(ierr); 170 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 171 ierr = PetscHTTPSConnect("www.googleapis.com",443,ctx,&sock,&ssl);CHKERRQ(ierr); 172 ierr = PetscHTTPSRequest("POST","www.googleapis.com/upload/drive/v2/files/",head,"multipart/related; boundary=\"foo_bar_baz\"",body,ssl,buff,sizeof(buff));CHKERRQ(ierr); 173 ierr = PetscFree(body);CHKERRQ(ierr); 174 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 175 close(sock); 176 ierr = PetscStrstr(buff,"\"title\"",&title);CHKERRQ(ierr); 177 if (!title) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_LIB,"Upload of file %s failed",filename); 178 } 179 PetscFunctionReturn(0); 180 } 181 182 #if defined(PETSC_HAVE_UNISTD_H) 183 #include <unistd.h> 184 #endif 185 186 #undef __FUNCT__ 187 #define __FUNCT__ "PetscGoogleDriveAuthorize" 188 /*@C 189 PetscGoogleDriveAuthorize - Get authorization and refresh token for accessing Google drive from PETSc 190 191 Not collective, only the first process in MPI_Comm does anything 192 193 Input Parameters: 194 + comm - the MPI communicator 195 - tokensize - size of the token arrays 196 197 Output Parameters: 198 + access_token - can be used with PetscGoogleDriveUpload() for this one session 199 - refresh_token - can be used for ever to obtain new access_tokens with PetscGoogleDriveRefresh(), guard this like a password 200 it gives access to your Google Drive 201 202 Notes: This call requires stdout and stdin access from process 0 on the MPI communicator 203 204 You can run src/sys/webclient/examples/tutorials/googleobtainrefreshtoken to get a refresh token and then in the future pass it to 205 PETSc programs with -google_refresh_token XXX 206 207 Level: intermediate 208 209 .seealso: PetscGoogleDriveRefresh(), PetscGoogleDriveUpload(), PetscURLShorten() 210 211 @*/ 212 PetscErrorCode PetscGoogleDriveAuthorize(MPI_Comm comm,char access_token[],char refresh_token[],size_t tokensize) 213 { 214 SSL_CTX *ctx; 215 SSL *ssl; 216 int sock; 217 PetscErrorCode ierr; 218 char buff[8*1024],*ptr,body[1024]; 219 PetscMPIInt rank; 220 size_t len; 221 PetscBool found; 222 223 PetscFunctionBegin; 224 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 225 if (!rank) { 226 if (!isatty(fileno(PETSC_STDOUT))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Requires users input/output"); 227 ierr = PetscPrintf(comm,"Cut and paste the following into your browser:\n\n" 228 "https://accounts.google.com/o/oauth2/auth?" 229 "scope=https%%3A%%2F%%2Fwww.googleapis.com%%2Fauth%%2Fdrive.file&" 230 "redirect_uri=urn:ietf:wg:oauth:2.0:oob&" 231 "response_type=code&" 232 "client_id=" 233 PETSC_GOOGLE_CLIENT_ID 234 "\n\n");CHKERRQ(ierr); 235 ierr = PetscPrintf(comm,"Paste the result here:");CHKERRQ(ierr); 236 ptr = fgets(buff, 1024, stdin); 237 if (!ptr) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_FILE_READ, "Error reading from stdin: %d", errno); 238 ierr = PetscStrlen(buff,&len);CHKERRQ(ierr); 239 buff[len-1] = 0; /* remove carriage return at end of line */ 240 241 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 242 ierr = PetscHTTPSConnect("accounts.google.com",443,ctx,&sock,&ssl);CHKERRQ(ierr); 243 ierr = PetscStrcpy(body,"code=");CHKERRQ(ierr); 244 ierr = PetscStrcat(body,buff);CHKERRQ(ierr); 245 ierr = PetscStrcat(body,"&client_id=");CHKERRQ(ierr); 246 ierr = PetscStrcat(body,PETSC_GOOGLE_CLIENT_ID);CHKERRQ(ierr); 247 ierr = PetscStrcat(body,"&client_secret=");CHKERRQ(ierr); 248 ierr = PetscStrcat(body,PETSC_GOOGLE_CLIENT_ST);CHKERRQ(ierr); 249 ierr = PetscStrcat(body,"&redirect_uri=urn:ietf:wg:oauth:2.0:oob&");CHKERRQ(ierr); 250 ierr = PetscStrcat(body,"grant_type=authorization_code");CHKERRQ(ierr); 251 252 ierr = PetscHTTPSRequest("POST","accounts.google.com/o/oauth2/token",NULL,"application/x-www-form-urlencoded",body,ssl,buff,sizeof(buff));CHKERRQ(ierr); 253 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 254 close(sock); 255 256 ierr = PetscPullJSONValue(buff,"access_token",access_token,tokensize,&found);CHKERRQ(ierr); 257 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return access_token"); 258 ierr = PetscPullJSONValue(buff,"refresh_token",refresh_token,tokensize,&found);CHKERRQ(ierr); 259 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return refresh_token"); 260 261 ierr = PetscPrintf(comm,"Here is your Google refresh token, save it in a save place, in the future you can run PETSc\n");CHKERRQ(ierr); 262 ierr = PetscPrintf(comm,"programs with the option -google_refresh_token %s\n",refresh_token);CHKERRQ(ierr); 263 ierr = PetscPrintf(comm,"to access Google Drive automatically\n");CHKERRQ(ierr); 264 } 265 PetscFunctionReturn(0); 266 } 267 268 269 #undef __FUNCT__ 270 #define __FUNCT__ "PetscURLShorten" 271 /*@C 272 PetscURLShorten - Uses Google's service to get a short url for a long url 273 274 Input Parameters: 275 + url - long URL you want shortened 276 - lenshorturl - length of buffer to contain short URL 277 278 Output Parameter: 279 . shorturl - the shortened URL 280 281 Level: intermediate 282 283 .seealso: PetscGoogleDriveRefresh(), PetscGoogleDriveUpload(), PetscGoogleDriveAuthorize() 284 @*/ 285 PetscErrorCode PetscURLShorten(const char url[],char shorturl[],size_t lenshorturl) 286 { 287 SSL_CTX *ctx; 288 SSL *ssl; 289 int sock; 290 PetscErrorCode ierr; 291 char buff[1024],body[512]; 292 PetscBool found; 293 294 PetscFunctionBegin; 295 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 296 ierr = PetscHTTPSConnect("www.googleapis.com",443,ctx,&sock,&ssl);CHKERRQ(ierr); 297 ierr = PetscStrcpy(body,"{");CHKERRQ(ierr); 298 ierr = PetscPushJSONValue(body,"longUrl",url,sizeof(body)-2);CHKERRQ(ierr); 299 ierr = PetscStrcat(body,"}");CHKERRQ(ierr); 300 ierr = PetscHTTPSRequest("POST","www.googleapis.com/urlshortener/v1/url",NULL,"application/json",body,ssl,buff,sizeof(buff));CHKERRQ(ierr); 301 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 302 close(sock); 303 304 ierr = PetscPullJSONValue(buff,"id",shorturl,lenshorturl,&found);CHKERRQ(ierr); 305 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return short URL"); 306 PetscFunctionReturn(0); 307 } 308 309