Actual source code: box.c
petsc-3.8.4 2018-03-24
2: #include <petscwebclient.h>
3: #pragma clang diagnostic ignored "-Wdeprecated-declarations"
4: #pragma gcc diagnostic ignored "-Wdeprecated-declarations"
6: /*
7: These variables identify the code as a PETSc application to Box.
9: See - http://stackoverflow.com/questions/4616553/using-oauth-in-free-open-source-software
10: Users can get their own application IDs - goto https://developers.box.com
12: */
13: #define PETSC_BOX_CLIENT_ID "sse42nygt4zqgrdwi0luv79q1u1f0xza"
14: #define PETSC_BOX_CLIENT_ST "A0Dy4KgOYLB2JIYZqpbze4EzjeIiX5k4"
16: #if defined(PETSC_HAVE_SAWS)
17: #include <mongoose.h>
19: static volatile char *result = NULL;
21: static int PetscBoxWebServer_Private(struct mg_connection *conn)
22: {
23: const struct mg_request_info *request_info = mg_get_request_info(conn);
24: result = (char*) request_info->query_string;
25: return 1; /* Mongoose will now not handle the request */
26: }
28: /*
29: Box can only return an authorization code to a Webserver, hence we need to start one up and wait for
30: the authorization code to arrive from Box
31: */
32: static PetscErrorCode PetscBoxStartWebServer_Private(void)
33: {
34: PetscErrorCode ierr;
35: int optionsLen = 5;
36: const char *options[optionsLen];
37: struct mg_callbacks callbacks;
38: struct mg_context *ctx;
39: char keyfile[PETSC_MAX_PATH_LEN];
40: PetscBool exists;
43: options[0] = "listening_ports";
44: options[1] = "8081s";
46: PetscStrcpy(keyfile,"sslclient.pem");
47: PetscTestFile(keyfile,'r',&exists);
48: if (!exists) {
49: PetscGetHomeDirectory(keyfile,PETSC_MAX_PATH_LEN);
50: PetscStrcat(keyfile,"/");
51: PetscStrcat(keyfile,"sslclient.pem");
52: PetscTestFile(keyfile,'r',&exists);
53: if (!exists) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Unable to locate sslclient.pem file in current directory or home directory");
54: }
56: options[2] = "ssl_certificate";
57: options[3] = keyfile;
58: options[4] = NULL;
60: /* Prepare callbacks structure. We have only one callback, the rest are NULL. */
61: PetscMemzero(&callbacks, sizeof(callbacks));
62: callbacks.begin_request = PetscBoxWebServer_Private;
63: ctx = mg_start(&callbacks, NULL, options);
64: if (!ctx) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Unable to start up webserver");
65: while (!result) {};
66: return(0);
67: }
69: #if defined(PETSC_HAVE_UNISTD_H)
70: #include <unistd.h>
71: #endif
73: /*@C
74: PetscBoxAuthorize - Get authorization and refresh token for accessing Box drive from PETSc
76: Not collective, only the first process in MPI_Comm does anything
78: Input Parameters:
79: + comm - the MPI communicator
80: - tokensize - size of the token arrays
82: Output Parameters:
83: + access_token - can be used with PetscBoxUpload() for this one session
84: - refresh_token - can be used for ever to obtain new access_tokens with PetscBoxRefresh(), guard this like a password
85: it gives access to your Box Drive
87: Notes: This call requires stdout and stdin access from process 0 on the MPI communicator
89: You can run src/sys/webclient/examples/tutorials/boxobtainrefreshtoken to get a refresh token and then in the future pass it to
90: PETSc programs with -box_refresh_token XXX
92: This requires PETSc be installed using --with-saws or --download-saws
94: Requires the user have created a self-signed ssl certificate with
96: $ saws/CA.pl -newcert (using the passphrase of password)
97: $ cat newkey.pem newcert.pem > sslclient.pem
99: and put the resulting file in either the current directory (with the application) or in the home directory. This seems kind of
100: silly but it was all I could figure out.
102: Level: intermediate
104: .seealso: PetscBoxRefresh(), PetscBoxUpload(), PetscURLShorten()
106: @*/
107: PetscErrorCode PetscBoxAuthorize(MPI_Comm comm,char access_token[],char refresh_token[],size_t tokensize)
108: {
109: SSL_CTX *ctx;
110: SSL *ssl;
111: int sock;
113: char buff[8*1024],body[1024];
114: PetscMPIInt rank;
115: PetscBool flg,found;
118: MPI_Comm_rank(comm,&rank);
119: if (!rank) {
120: if (!isatty(fileno(PETSC_STDOUT))) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_USER,"Requires users input/output");
121: PetscPrintf(comm,"Cut and paste the following into your browser:\n\n"
122: "https://www.box.com/api/oauth2/authorize?"
123: "response_type=code&"
124: "client_id="
125: PETSC_BOX_CLIENT_ID
126: "&state=PETScState"
127: "\n\n");
128: PetscBoxStartWebServer_Private();
129: PetscStrbeginswith((const char*)result,"state=PETScState&code=",&flg);
130: if (!flg) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_LIB,"Did not get expected string from Box got %s",result);
131: PetscStrncpy(buff,(const char*)result+22,sizeof(buff));
133: PetscSSLInitializeContext(&ctx);
134: PetscHTTPSConnect("www.box.com",443,ctx,&sock,&ssl);
135: PetscStrcpy(body,"code=");
136: PetscStrcat(body,buff);
137: PetscStrcat(body,"&client_id=");
138: PetscStrcat(body,PETSC_BOX_CLIENT_ID);
139: PetscStrcat(body,"&client_secret=");
140: PetscStrcat(body,PETSC_BOX_CLIENT_ST);
141: PetscStrcat(body,"&grant_type=authorization_code");
143: PetscHTTPSRequest("POST","www.box.com/api/oauth2/token",NULL,"application/x-www-form-urlencoded",body,ssl,buff,sizeof(buff));
144: PetscSSLDestroyContext(ctx);
145: close(sock);
147: PetscPullJSONValue(buff,"access_token",access_token,tokensize,&found);
148: if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Box did not return access token");
149: PetscPullJSONValue(buff,"refresh_token",refresh_token,tokensize,&found);
150: if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Box did not return refresh token");
152: PetscPrintf(comm,"Here is your Box refresh token, save it in a save place, in the future you can run PETSc\n");
153: PetscPrintf(comm,"programs with the option -box_refresh_token %s\n",refresh_token);
154: PetscPrintf(comm,"to access Box Drive automatically\n");
155: }
156: return(0);
157: }
158: #endif
160: /*@C
161: PetscBoxRefresh - Get a new authorization token for accessing Box drive from PETSc from a refresh token
163: Not collective, only the first process in the MPI_Comm does anything
165: Input Parameters:
166: + comm - MPI communicator
167: . refresh token - obtained with PetscBoxAuthorize(), if NULL PETSc will first look for one in the options data
168: if not found it will call PetscBoxAuthorize()
169: - tokensize - size of the output string access_token
171: Output Parameter:
172: + access_token - token that can be passed to PetscBoxUpload()
173: - new_refresh_token - the old refresh token is no longer valid, not this is different than Google where the same refresh_token is used forever
175: Level: intermediate
177: .seealso: PetscURLShorten(), PetscBoxAuthorize(), PetscBoxUpload()
179: @*/
180: PetscErrorCode PetscBoxRefresh(MPI_Comm comm,const char refresh_token[],char access_token[],char new_refresh_token[],size_t tokensize)
181: {
182: SSL_CTX *ctx;
183: SSL *ssl;
184: int sock;
186: char buff[8*1024],body[1024];
187: PetscMPIInt rank;
188: char *refreshtoken = (char*)refresh_token;
189: PetscBool found;
192: MPI_Comm_rank(comm,&rank);
193: if (!rank) {
194: if (!refresh_token) {
195: PetscBool set;
196: PetscMalloc1(512,&refreshtoken);
197: PetscOptionsGetString(NULL,NULL,"-box_refresh_token",refreshtoken,512,&set);
198: #if defined(PETSC_HAVE_SAWS)
199: if (!set) {
200: PetscBoxAuthorize(comm,access_token,new_refresh_token,512*sizeof(char));
201: PetscFree(refreshtoken);
202: return(0);
203: }
204: #else
205: if (!set) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Must provide refresh token with -box_refresh_token XXX");
206: #endif
207: }
208: PetscSSLInitializeContext(&ctx);
209: PetscHTTPSConnect("www.box.com",443,ctx,&sock,&ssl);
210: PetscStrcpy(body,"client_id=");
211: PetscStrcat(body,PETSC_BOX_CLIENT_ID);
212: PetscStrcat(body,"&client_secret=");
213: PetscStrcat(body,PETSC_BOX_CLIENT_ST);
214: PetscStrcat(body,"&refresh_token=");
215: PetscStrcat(body,refreshtoken);
216: if (!refresh_token) {PetscFree(refreshtoken);}
217: PetscStrcat(body,"&grant_type=refresh_token");
219: PetscHTTPSRequest("POST","www.box.com/api/oauth2/token",NULL,"application/x-www-form-urlencoded",body,ssl,buff,sizeof(buff));
220: PetscSSLDestroyContext(ctx);
221: close(sock);
223: PetscPullJSONValue(buff,"access_token",access_token,tokensize,&found);
224: if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Box did not return access token");
225: PetscPullJSONValue(buff,"refresh_token",new_refresh_token,tokensize,&found);
226: if (!found) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_LIB,"Box did not return refresh token");
228: PetscPrintf(comm,"Here is your new Box refresh token, save it in a save place, in the future you can run PETSc\n");
229: PetscPrintf(comm,"programs with the option -box_refresh_token %s\n",new_refresh_token);
230: PetscPrintf(comm,"to access Box Drive automatically\n");
231: }
232: return(0);
233: }
235: #include <sys/stat.h>
237: /*@C
238: PetscBoxUpload - Loads a file to the Box Drive
240: This routine has not yet been written; it is just copied from Google Drive
242: Not collective, only the first process in the MPI_Comm uploads the file
244: Input Parameters:
245: + comm - MPI communicator
246: . access_token - obtained with PetscBoxRefresh(), pass NULL to have PETSc generate one
247: - filename - file to upload; if you upload multiple times it will have different names each time on Box Drive
249: Options Database:
250: . -box_refresh_token XXX
252: Usage Patterns:
253: With PETSc option -box_refresh_token XXX given
254: PetscBoxUpload(comm,NULL,filename); will upload file with no user interaction
256: Without PETSc option -box_refresh_token XXX given
257: PetscBoxUpload(comm,NULL,filename); for first use will prompt user to authorize access to Box Drive with their processor
259: With PETSc option -box_refresh_token XXX given
260: PetscBoxRefresh(comm,NULL,access_token,sizeof(access_token));
261: PetscBoxUpload(comm,access_token,filename);
263: With refresh token entered in some way by the user
264: PetscBoxRefresh(comm,refresh_token,access_token,sizeof(access_token));
265: PetscBoxUpload(comm,access_token,filename);
267: PetscBoxAuthorize(comm,access_token,refresh_token,sizeof(access_token));
268: PetscBoxUpload(comm,access_token,filename);
270: Level: intermediate
272: .seealso: PetscURLShorten(), PetscBoxAuthorize(), PetscBoxRefresh()
274: @*/
275: PetscErrorCode PetscBoxUpload(MPI_Comm comm,const char access_token[],const char filename[])
276: {
277: SSL_CTX *ctx;
278: SSL *ssl;
279: int sock;
281: char head[1024],buff[8*1024],*body,*title;
282: PetscMPIInt rank;
283: struct stat sb;
284: size_t len,blen,rd;
285: FILE *fd;
288: MPI_Comm_rank(comm,&rank);
289: if (!rank) {
290: PetscStrcpy(head,"Authorization: Bearer ");
291: PetscStrcat(head,access_token);
292: PetscStrcat(head,"\r\n");
293: PetscStrcat(head,"uploadType: multipart\r\n");
295: stat(filename,&sb);
296: if (ierr) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Unable to stat file: %s",filename);
297: len = 1024 + sb.st_size;
298: PetscMalloc1(len,&body);
299: PetscStrcpy(body,"--foo_bar_baz\r\n"
300: "Content-Type: application/json\r\n\r\n"
301: "{");
302: PetscPushJSONValue(body,"title",filename,len);
303: PetscStrcat(body,",");
304: PetscPushJSONValue(body,"mimeType","text.html",len);
305: PetscStrcat(body,",");
306: PetscPushJSONValue(body,"description","a file",len);
307: PetscStrcat(body, "}\r\n\r\n"
308: "--foo_bar_baz\r\n"
309: "Content-Type: text/html\r\n\r\n");
310: PetscStrlen(body,&blen);
311: fd = fopen (filename, "r");
312: if (!fd) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_FILE_OPEN,"Unable to open file: %s",filename);
313: rd = fread (body+blen, sizeof (unsigned char), sb.st_size, fd);
314: 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,(int)sb.st_size);
315: fclose(fd);
316: body[blen + rd] = 0;
317: PetscStrcat(body,"\r\n\r\n"
318: "--foo_bar_baz\r\n");
319: PetscSSLInitializeContext(&ctx);
320: PetscHTTPSConnect("www.boxapis.com",443,ctx,&sock,&ssl);
321: PetscHTTPSRequest("POST","www.boxapis.com/upload/drive/v2/files/",head,"multipart/related; boundary=\"foo_bar_baz\"",body,ssl,buff,sizeof(buff));
322: PetscFree(body);
323: PetscSSLDestroyContext(ctx);
324: close(sock);
325: PetscStrstr(buff,"\"title\"",&title);
326: if (!title) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_LIB,"Upload of file %s failed",filename);
327: }
328: return(0);
329: }