1 2 #include <petscwebclient.h> 3 #pragma clang diagnostic ignored "-Wdeprecated-declarations" 4 5 /* 6 These variables identify the code as a PETSc application to Google. 7 8 See - http://stackoverflow.com/questions/4616553/using-oauth-in-free-open-source-software 9 Users can get their own application IDs - https://code.google.com/p/google-apps-manager/wiki/GettingAnOAuthConsoleKey 10 11 */ 12 #define PETSC_GOOGLE_CLIENT_ID "521429262559-i19i57eek8tnt9ftpp4p91rcl0bo9ag5.apps.googleusercontent.com" 13 #define PETSC_GOOGLE_CLIENT_ST "vOds_A71I3_S_aHMq_kZAI0t" 14 15 16 #undef __FUNCT__ 17 #define __FUNCT__ "PetscGoogleDriveRefresh" 18 /*@C 19 PetscGoogleDriveRefresh - Get a new authorization token for accessing Google drive from PETSc from a refresh token 20 21 Not collective, only the first process in the MPI_Comm does anything 22 23 Input Parameters: 24 + comm - MPI communicator 25 . refresh token - obtained with PetscGoogleDriveAuthorize(), if NULL PETSc will first look for one in the options data 26 if not found it will call PetscGoogleDriveAuthorize() 27 - tokensize - size of the output string access_token 28 29 Output Parameter: 30 . access_token - token that can be passed to PetscGoogleDriveUpload() 31 32 Options Database: 33 . -google_refresh_token XXX where XXX was obtained from PetscGoogleDriveAuthorize() 34 35 36 .seealso: PetscURLShorten(), PetscGoogleDriveAuthorize(), PetscGoogleDriveUpload() 37 38 @*/ 39 PetscErrorCode PetscGoogleDriveRefresh(MPI_Comm comm,const char refresh_token[],char access_token[],size_t tokensize) 40 { 41 SSL_CTX *ctx; 42 SSL *ssl; 43 int sock; 44 PetscErrorCode ierr; 45 char buff[8*1024],body[1024]; 46 PetscMPIInt rank; 47 char *refreshtoken = (char*)refresh_token; 48 PetscBool found; 49 50 PetscFunctionBegin; 51 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 52 if (!rank) { 53 if (!refresh_token) { 54 PetscBool set; 55 ierr = PetscMalloc1(512,&refreshtoken);CHKERRQ(ierr); 56 ierr = PetscOptionsGetString(NULL,"-google_refresh_token",refreshtoken,512,&set);CHKERRQ(ierr); 57 if (!set) { 58 ierr = PetscGoogleDriveAuthorize(comm,access_token,refreshtoken,512*sizeof(char));CHKERRQ(ierr); 59 ierr = PetscFree(refreshtoken);CHKERRQ(ierr); 60 PetscFunctionReturn(0); 61 } 62 } 63 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 64 ierr = PetscHTTPSConnect("accounts.google.com",443,ctx,&sock,&ssl);CHKERRQ(ierr); 65 ierr = PetscStrcpy(body,"client_id=");CHKERRQ(ierr); 66 ierr = PetscStrcat(body,PETSC_GOOGLE_CLIENT_ID);CHKERRQ(ierr); 67 ierr = PetscStrcat(body,"&client_secret=");CHKERRQ(ierr); 68 ierr = PetscStrcat(body,PETSC_GOOGLE_CLIENT_ST);CHKERRQ(ierr); 69 ierr = PetscStrcat(body,"&refresh_token=");CHKERRQ(ierr); 70 ierr = PetscStrcat(body,refreshtoken);CHKERRQ(ierr); 71 if (!refresh_token) {ierr = PetscFree(refreshtoken);CHKERRQ(ierr);} 72 ierr = PetscStrcat(body,"&grant_type=refresh_token");CHKERRQ(ierr); 73 74 ierr = PetscHTTPSRequest("POST","accounts.google.com/o/oauth2/token",NULL,"application/x-www-form-urlencoded",body,ssl,buff,sizeof(buff));CHKERRQ(ierr); 75 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 76 close(sock); 77 78 ierr = PetscPullJSONValue(buff,"access_token",access_token,tokensize,&found);CHKERRQ(ierr); 79 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return access_token"); 80 } 81 PetscFunctionReturn(0); 82 } 83 84 #include <sys/stat.h> 85 86 #undef __FUNCT__ 87 #define __FUNCT__ "PetscGoogleDriveUpload" 88 /*@C 89 PetscGoogleDriveUpload - Loads a file to the Google Drive 90 91 Not collective, only the first process in the MPI_Comm uploads the file 92 93 Input Parameters: 94 + comm - MPI communicator 95 . access_token - obtained with PetscGoogleDriveRefresh(), pass NULL to have PETSc generate one 96 - filename - file to upload; if you upload multiple times it will have different names each time on Google Drive 97 98 Options Database: 99 . -google_refresh_token XXX 100 101 Usage Patterns: 102 With PETSc option -google_refresh_token XXX given 103 PetscGoogleDriveUpload(comm,NULL,filename); will upload file with no user interaction 104 105 Without PETSc option -google_refresh_token XXX given 106 PetscGoogleDriveUpload(comm,NULL,filename); for first use will prompt user to authorize access to Google Drive with their processor 107 108 With PETSc option -google_refresh_token XXX given 109 PetscGoogleDriveRefresh(comm,NULL,access_token,sizeof(access_token)); 110 PetscGoogleDriveUpload(comm,access_token,filename); 111 112 With refresh token entered in some way by the user 113 PetscGoogleDriveRefresh(comm,refresh_token,access_token,sizeof(access_token)); 114 PetscGoogleDriveUpload(comm,access_token,filename); 115 116 PetscGoogleDriveAuthorize(comm,access_token,refresh_token,sizeof(access_token)); 117 PetscGoogleDriveUpload(comm,access_token,filename); 118 119 .seealso: PetscURLShorten(), PetscGoogleDriveAuthorize(), PetscGoogleDriveRefresh() 120 121 @*/ 122 PetscErrorCode PetscGoogleDriveUpload(MPI_Comm comm,const char access_token[],const char filename[]) 123 { 124 SSL_CTX *ctx; 125 SSL *ssl; 126 int sock; 127 PetscErrorCode ierr; 128 char head[1024],buff[8*1024],*body,*title; 129 PetscMPIInt rank; 130 struct stat sb; 131 size_t len,blen,rd; 132 FILE *fd; 133 134 PetscFunctionBegin; 135 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 136 if (!rank) { 137 ierr = PetscStrcpy(head,"Authorization: Bearer ");CHKERRQ(ierr); 138 ierr = PetscStrcat(head,access_token);CHKERRQ(ierr); 139 ierr = PetscStrcat(head,"\r\n");CHKERRQ(ierr); 140 ierr = PetscStrcat(head,"uploadType: multipart\r\n");CHKERRQ(ierr); 141 142 ierr = stat(filename,&sb); 143 if (ierr) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Unable to stat file: %s",filename); 144 len = 1024 + sb.st_size; 145 ierr = PetscMalloc1(len,&body);CHKERRQ(ierr); 146 ierr = PetscStrcpy(body,"--foo_bar_baz\r\n" 147 "Content-Type: application/json\r\n\r\n" 148 "{");CHKERRQ(ierr); 149 ierr = PetscPushJSONValue(body,"title",filename,len);CHKERRQ(ierr); 150 ierr = PetscStrcat(body,",");CHKERRQ(ierr); 151 ierr = PetscPushJSONValue(body,"mimeType","text.html",len);CHKERRQ(ierr); 152 ierr = PetscStrcat(body,",");CHKERRQ(ierr); 153 ierr = PetscPushJSONValue(body,"description","a file",len);CHKERRQ(ierr); 154 ierr = PetscStrcat(body,"}\r\n\r\n" 155 "--foo_bar_baz\r\n" 156 "Content-Type: text/html\r\n\r\n"); 157 ierr = PetscStrlen(body,&blen);CHKERRQ(ierr); 158 fd = fopen (filename, "r"); 159 if (!fd) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Unable to open file: %s",filename); 160 rd = fread (body+blen, sizeof (unsigned char), sb.st_size, fd); 161 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); 162 fclose(fd); 163 body[blen + rd] = 0; 164 ierr = PetscStrcat(body,"\r\n\r\n" 165 "--foo_bar_baz\r\n"); 166 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 167 ierr = PetscHTTPSConnect("www.googleapis.com",443,ctx,&sock,&ssl);CHKERRQ(ierr); 168 ierr = PetscHTTPSRequest("POST","www.googleapis.com/upload/drive/v2/files/",head,"multipart/related; boundary=\"foo_bar_baz\"",body,ssl,buff,sizeof(buff));CHKERRQ(ierr); 169 ierr = PetscFree(body);CHKERRQ(ierr); 170 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 171 close(sock); 172 ierr = PetscStrstr(buff,"\"title\"",&title);CHKERRQ(ierr); 173 if (!title) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_LIB,"Upload of file %s failed",filename); 174 } 175 PetscFunctionReturn(0); 176 } 177 178 #if defined(PETSC_HAVE_UNISTD_H) 179 #include <unistd.h> 180 #endif 181 182 #undef __FUNCT__ 183 #define __FUNCT__ "PetscGoogleDriveAuthorize" 184 /*@C 185 PetscGoogleDriveAuthorize - Get authorization and refresh token for accessing Google drive from PETSc 186 187 Not collective, only the first process in MPI_Comm does anything 188 189 Input Parameters: 190 + comm - the MPI communicator 191 - tokensize - size of the token arrays 192 193 Output Parameters: 194 + access_token - can be used with PetscGoogleDriveUpload() for this one session 195 - refresh_token - can be used for ever to obtain new access_tokens with PetscGoogleDriveRefresh(), guard this like a password 196 it gives access to your Google Drive 197 198 Notes: This call requires stdout and stdin access from process 0 on the MPI communicator 199 200 You can run src/sys/webclient/examples/tutorials/googleobtainrefreshtoken to get a refresh token and then in the future pass it to 201 PETSc programs with -google_refresh_token XXX 202 203 .seealso: PetscGoogleDriveRefresh(), PetscGoogleDriveUpload(), PetscURLShorten() 204 205 @*/ 206 PetscErrorCode PetscGoogleDriveAuthorize(MPI_Comm comm,char access_token[],char refresh_token[],size_t tokensize) 207 { 208 SSL_CTX *ctx; 209 SSL *ssl; 210 int sock; 211 PetscErrorCode ierr; 212 char buff[8*1024],*ptr,body[1024]; 213 PetscMPIInt rank; 214 size_t len; 215 PetscBool found; 216 217 PetscFunctionBegin; 218 ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 219 if (!rank) { 220 if (!isatty(fileno(PETSC_STDOUT))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Requires users input/output"); 221 ierr = PetscPrintf(comm,"Cut and paste the following into your browser:\n\n" 222 "https://accounts.google.com/o/oauth2/auth?" 223 "scope=https%%3A%%2F%%2Fwww.googleapis.com%%2Fauth%%2Fdrive.file&" 224 "redirect_uri=urn:ietf:wg:oauth:2.0:oob&" 225 "response_type=code&" 226 "client_id=" 227 PETSC_GOOGLE_CLIENT_ID 228 "\n\n");CHKERRQ(ierr); 229 ierr = PetscPrintf(comm,"Paste the result here:");CHKERRQ(ierr); 230 ptr = fgets(buff, 1024, stdin); 231 if (!ptr) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_FILE_READ, "Error reading from stdin: %d", errno); 232 ierr = PetscStrlen(buff,&len);CHKERRQ(ierr); 233 buff[len-1] = 0; /* remove carriage return at end of line */ 234 235 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 236 ierr = PetscHTTPSConnect("accounts.google.com",443,ctx,&sock,&ssl);CHKERRQ(ierr); 237 ierr = PetscStrcpy(body,"code=");CHKERRQ(ierr); 238 ierr = PetscStrcat(body,buff);CHKERRQ(ierr); 239 ierr = PetscStrcat(body,"&client_id=");CHKERRQ(ierr); 240 ierr = PetscStrcat(body,PETSC_GOOGLE_CLIENT_ID);CHKERRQ(ierr); 241 ierr = PetscStrcat(body,"&client_secret=");CHKERRQ(ierr); 242 ierr = PetscStrcat(body,PETSC_GOOGLE_CLIENT_ST);CHKERRQ(ierr); 243 ierr = PetscStrcat(body,"&redirect_uri=urn:ietf:wg:oauth:2.0:oob&");CHKERRQ(ierr); 244 ierr = PetscStrcat(body,"grant_type=authorization_code");CHKERRQ(ierr); 245 246 ierr = PetscHTTPSRequest("POST","accounts.google.com/o/oauth2/token",NULL,"application/x-www-form-urlencoded",body,ssl,buff,sizeof(buff));CHKERRQ(ierr); 247 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 248 close(sock); 249 250 ierr = PetscPullJSONValue(buff,"access_token",access_token,tokensize,&found);CHKERRQ(ierr); 251 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return access_token"); 252 ierr = PetscPullJSONValue(buff,"refresh_token",refresh_token,tokensize,&found);CHKERRQ(ierr); 253 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return refresh_token"); 254 255 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); 256 ierr = PetscPrintf(comm,"programs with the option -google_refresh_token %s\n",refresh_token);CHKERRQ(ierr); 257 ierr = PetscPrintf(comm,"to access Google Drive automatically\n");CHKERRQ(ierr); 258 } 259 PetscFunctionReturn(0); 260 } 261 262 263 #undef __FUNCT__ 264 #define __FUNCT__ "PetscURLShorten" 265 /*@C 266 PetscURLShorten - Uses Google's service to get a short url for a long url 267 268 Input Parameters: 269 + url - long URL you want shortened 270 - lenshorturl - length of buffer to contain short URL 271 272 Output Parameter: 273 . shorturl - the shortened URL 274 275 .seealso: PetscGoogleDriveRefresh(), PetscGoogleDriveUpload(), PetscGoogleDriveAuthorize() 276 @*/ 277 PetscErrorCode PetscURLShorten(const char url[],char shorturl[],size_t lenshorturl) 278 { 279 SSL_CTX *ctx; 280 SSL *ssl; 281 int sock; 282 PetscErrorCode ierr; 283 char buff[1024],body[512]; 284 PetscBool found; 285 286 PetscFunctionBegin; 287 ierr = PetscSSLInitializeContext(&ctx);CHKERRQ(ierr); 288 ierr = PetscHTTPSConnect("www.googleapis.com",443,ctx,&sock,&ssl);CHKERRQ(ierr); 289 ierr = PetscStrcpy(body,"{");CHKERRQ(ierr); 290 ierr = PetscPushJSONValue(body,"longUrl",url,sizeof(body)-2);CHKERRQ(ierr); 291 ierr = PetscStrcat(body,"}");CHKERRQ(ierr); 292 ierr = PetscHTTPSRequest("POST","www.googleapis.com/urlshortener/v1/url",NULL,"application/json",body,ssl,buff,sizeof(buff));CHKERRQ(ierr); 293 ierr = PetscSSLDestroyContext(ctx);CHKERRQ(ierr); 294 close(sock); 295 296 ierr = PetscPullJSONValue(buff,"id",shorturl,lenshorturl,&found);CHKERRQ(ierr); 297 if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return short URL"); 298 PetscFunctionReturn(0); 299 } 300 301