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: 32 . -google_refresh_token XXX - where XXX was obtained from PetscGoogleDriveAuthorize() 33 34 Level: intermediate 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 char buff[8*1024],body[1024]; 45 PetscMPIInt rank; 46 char *refreshtoken = (char*)refresh_token; 47 PetscBool found; 48 49 PetscFunctionBegin; 50 PetscCallMPI(MPI_Comm_rank(comm,&rank)); 51 if (rank == 0) { 52 if (!refresh_token) { 53 PetscBool set; 54 PetscCall(PetscMalloc1(512,&refreshtoken)); 55 PetscCall(PetscOptionsGetString(NULL,NULL,"-google_refresh_token",refreshtoken,sizeof(refreshtoken),&set)); 56 if (!set) { 57 PetscCall(PetscGoogleDriveAuthorize(comm,access_token,refreshtoken,512*sizeof(char))); 58 PetscCall(PetscFree(refreshtoken)); 59 PetscFunctionReturn(0); 60 } 61 } 62 PetscCall(PetscSSLInitializeContext(&ctx)); 63 PetscCall(PetscHTTPSConnect("accounts.google.com",443,ctx,&sock,&ssl)); 64 PetscCall(PetscStrcpy(body,"client_id=")); 65 PetscCall(PetscStrcat(body,PETSC_GOOGLE_CLIENT_ID)); 66 PetscCall(PetscStrcat(body,"&client_secret=")); 67 PetscCall(PetscStrcat(body,PETSC_GOOGLE_CLIENT_ST)); 68 PetscCall(PetscStrcat(body,"&refresh_token=")); 69 PetscCall(PetscStrcat(body,refreshtoken)); 70 if (!refresh_token) PetscCall(PetscFree(refreshtoken)); 71 PetscCall(PetscStrcat(body,"&grant_type=refresh_token")); 72 73 PetscCall(PetscHTTPSRequest("POST","accounts.google.com/o/oauth2/token",NULL,"application/x-www-form-urlencoded",body,ssl,buff,sizeof(buff))); 74 PetscCall(PetscSSLDestroyContext(ctx)); 75 close(sock); 76 77 PetscCall(PetscPullJSONValue(buff,"access_token",access_token,tokensize,&found)); 78 PetscCheck(found,PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return access_token"); 79 } 80 PetscFunctionReturn(0); 81 } 82 83 #include <sys/stat.h> 84 85 /*@C 86 PetscGoogleDriveUpload - Loads a file to the Google Drive 87 88 Not collective, only the first process in the MPI_Comm uploads the file 89 90 Input Parameters: 91 + comm - MPI communicator 92 . access_token - obtained with PetscGoogleDriveRefresh(), pass NULL to have PETSc generate one 93 - filename - file to upload; if you upload multiple times it will have different names each time on Google Drive 94 95 Options Database: 96 . -google_refresh_token XXX - pass the access token for the operation 97 98 Usage Patterns: 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); 115 116 Level: intermediate 117 118 .seealso: PetscURLShorten(), PetscGoogleDriveAuthorize(), PetscGoogleDriveRefresh() 119 120 @*/ 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 PetscErrorCode ierr; 127 char head[1024],buff[8*1024],*body,*title; 128 PetscMPIInt rank; 129 struct stat sb; 130 size_t len,blen,rd; 131 FILE *fd; 132 int err; 133 134 PetscFunctionBegin; 135 PetscCallMPI(MPI_Comm_rank(comm,&rank)); 136 if (rank == 0) { 137 PetscCall(PetscStrcpy(head,"Authorization: Bearer ")); 138 PetscCall(PetscStrcat(head,access_token)); 139 PetscCall(PetscStrcat(head,"\r\n")); 140 PetscCall(PetscStrcat(head,"uploadType: multipart\r\n")); 141 142 err = stat(filename,&sb); 143 PetscCheck(!err,PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Unable to stat file: %s",filename); 144 len = 1024 + sb.st_size; 145 PetscCall(PetscMalloc1(len,&body)); 146 ierr = PetscStrcpy(body,"--foo_bar_baz\r\n" 147 "Content-Type: application/json\r\n\r\n" 148 "{");PetscCall(ierr); 149 PetscCall(PetscPushJSONValue(body,"title",filename,len)); 150 PetscCall(PetscStrcat(body,",")); 151 PetscCall(PetscPushJSONValue(body,"mimeType","text.html",len)); 152 PetscCall(PetscStrcat(body,",")); 153 PetscCall(PetscPushJSONValue(body,"description","a file",len)); 154 ierr = PetscStrcat(body,"}\r\n\r\n" 155 "--foo_bar_baz\r\n" 156 "Content-Type: text/html\r\n\r\n");PetscCall(ierr); 157 PetscCall(PetscStrlen(body,&blen)); 158 fd = fopen (filename, "r"); 159 PetscCheck(fd,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 PetscCheckFalse(rd != (size_t) sb.st_size,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");PetscCall(ierr); 166 PetscCall(PetscSSLInitializeContext(&ctx)); 167 PetscCall(PetscHTTPSConnect("www.googleapis.com",443,ctx,&sock,&ssl)); 168 PetscCall(PetscHTTPSRequest("POST","www.googleapis.com/upload/drive/v2/files/",head,"multipart/related; boundary=\"foo_bar_baz\"",body,ssl,buff,sizeof(buff))); 169 PetscCall(PetscFree(body)); 170 PetscCall(PetscSSLDestroyContext(ctx)); 171 close(sock); 172 PetscCall(PetscStrstr(buff,"\"title\"",&title)); 173 PetscCheck(title,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 /*@C 183 PetscGoogleDriveAuthorize - Get authorization and refresh token for accessing Google drive from PETSc 184 185 Not collective, only the first process in MPI_Comm does anything 186 187 Input Parameters: 188 + comm - the MPI communicator 189 - tokensize - size of the token arrays 190 191 Output Parameters: 192 + access_token - can be used with PetscGoogleDriveUpload() for this one session 193 - refresh_token - can be used for ever to obtain new access_tokens with PetscGoogleDriveRefresh(), guard this like a password 194 it gives access to your Google Drive 195 196 Notes: 197 This call requires stdout and stdin access from process 0 on the MPI communicator 198 199 You can run src/sys/webclient/tutorials/googleobtainrefreshtoken to get a refresh token and then in the future pass it to 200 PETSc programs with -google_refresh_token XXX 201 202 Level: intermediate 203 204 .seealso: PetscGoogleDriveRefresh(), PetscGoogleDriveUpload(), PetscURLShorten() 205 206 @*/ 207 PetscErrorCode PetscGoogleDriveAuthorize(MPI_Comm comm,char access_token[],char refresh_token[],size_t tokensize) 208 { 209 SSL_CTX *ctx; 210 SSL *ssl; 211 int sock; 212 PetscErrorCode ierr; 213 char buff[8*1024],*ptr,body[1024]; 214 PetscMPIInt rank; 215 size_t len; 216 PetscBool found; 217 218 PetscFunctionBegin; 219 PetscCallMPI(MPI_Comm_rank(comm,&rank)); 220 if (rank == 0) { 221 PetscCheckFalse(!isatty(fileno(PETSC_STDOUT)),PETSC_COMM_SELF,PETSC_ERR_USER,"Requires users input/output"); 222 ierr = PetscPrintf(comm,"Cut and paste the following into your browser:\n\n" 223 "https://accounts.google.com/o/oauth2/auth?" 224 "scope=https%%3A%%2F%%2Fwww.googleapis.com%%2Fauth%%2Fdrive.file&" 225 "redirect_uri=urn:ietf:wg:oauth:2.0:oob&" 226 "response_type=code&" 227 "client_id=" 228 PETSC_GOOGLE_CLIENT_ID 229 "\n\n");PetscCall(ierr); 230 PetscCall(PetscPrintf(comm,"Paste the result here:")); 231 ptr = fgets(buff, 1024, stdin); 232 PetscCheck(ptr,PETSC_COMM_SELF, PETSC_ERR_FILE_READ, "Error reading from stdin: %d", errno); 233 PetscCall(PetscStrlen(buff,&len)); 234 buff[len-1] = 0; /* remove carriage return at end of line */ 235 236 PetscCall(PetscSSLInitializeContext(&ctx)); 237 PetscCall(PetscHTTPSConnect("accounts.google.com",443,ctx,&sock,&ssl)); 238 PetscCall(PetscStrcpy(body,"code=")); 239 PetscCall(PetscStrcat(body,buff)); 240 PetscCall(PetscStrcat(body,"&client_id=")); 241 PetscCall(PetscStrcat(body,PETSC_GOOGLE_CLIENT_ID)); 242 PetscCall(PetscStrcat(body,"&client_secret=")); 243 PetscCall(PetscStrcat(body,PETSC_GOOGLE_CLIENT_ST)); 244 PetscCall(PetscStrcat(body,"&redirect_uri=urn:ietf:wg:oauth:2.0:oob&")); 245 PetscCall(PetscStrcat(body,"grant_type=authorization_code")); 246 247 PetscCall(PetscHTTPSRequest("POST","accounts.google.com/o/oauth2/token",NULL,"application/x-www-form-urlencoded",body,ssl,buff,sizeof(buff))); 248 PetscCall(PetscSSLDestroyContext(ctx)); 249 close(sock); 250 251 PetscCall(PetscPullJSONValue(buff,"access_token",access_token,tokensize,&found)); 252 PetscCheck(found,PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return access_token"); 253 PetscCall(PetscPullJSONValue(buff,"refresh_token",refresh_token,tokensize,&found)); 254 PetscCheck(found,PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return refresh_token"); 255 256 PetscCall(PetscPrintf(comm,"Here is your Google refresh token, save it in a save place, in the future you can run PETSc\n")); 257 PetscCall(PetscPrintf(comm,"programs with the option -google_refresh_token %s\n",refresh_token)); 258 PetscCall(PetscPrintf(comm,"to access Google Drive automatically\n")); 259 } 260 PetscFunctionReturn(0); 261 } 262 263 /*@C 264 PetscURLShorten - Uses Google's service to get a short url for a long url 265 266 Input Parameters: 267 + url - long URL you want shortened 268 - lenshorturl - length of buffer to contain short URL 269 270 Output Parameter: 271 . shorturl - the shortened URL 272 273 Level: intermediate 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 char buff[1024],body[512],post[1024]; 283 PetscBool found; 284 285 PetscFunctionBegin; 286 PetscCall(PetscSSLInitializeContext(&ctx)); 287 PetscCall(PetscHTTPSConnect("www.googleapis.com",443,ctx,&sock,&ssl)); 288 PetscCall(PetscStrcpy(body,"{")); 289 PetscCall(PetscPushJSONValue(body,"longUrl",url,sizeof(body)-2)); 290 PetscCall(PetscStrcat(body,"}")); 291 PetscCall(PetscSNPrintf(post,sizeof(post),"www.googleapis.com/urlshortener/v1/url?key=%s",PETSC_GOOGLE_API_KEY)); 292 PetscCall(PetscHTTPSRequest("POST",post,NULL,"application/json",body,ssl,buff,sizeof(buff))); 293 PetscCall(PetscSSLDestroyContext(ctx)); 294 close(sock); 295 296 PetscCall(PetscPullJSONValue(buff,"id",shorturl,lenshorturl,&found)); 297 PetscCheck(found,PETSC_COMM_SELF,PETSC_ERR_LIB,"Google drive did not return short URL"); 298 PetscFunctionReturn(0); 299 } 300