Annotation of libwww/Library/src/HTAccess.c, revision 1.116
1.61 frystyk 1: /* HTAccess.c
2: ** ACCESS MANAGER
3: **
1.75 frystyk 4: ** (c) COPYRIGHT MIT 1995.
1.61 frystyk 5: ** Please first read the full copyright statement in the file COPYRIGH.
1.1 timbl 6: **
7: ** Authors
1.79 frystyk 8: ** TBL Tim Berners-Lee timbl@w3.org
1.4 timbl 9: ** JFG Jean-Francois Groff jfg@dxcern.cern.ch
1.1 timbl 10: ** DD Denis DeLaRoca (310) 825-4580 <CSP1DWD@mvs.oac.ucla.edu>
11: ** History
12: ** 8 Jun 92 Telnet hopping prohibited as telnet is not secure TBL
13: ** 26 Jun 92 When over DECnet, suppressed FTP, Gopher and News. JFG
1.42 frystyk 14: ** 6 Oct 92 Moved HTClientHost and HTlogfile into here. TBL
1.1 timbl 15: ** 17 Dec 92 Tn3270 added, bug fix. DD
1.2 timbl 16: ** 4 Feb 93 Access registration, Search escapes bad chars TBL
1.9 timbl 17: ** PARAMETERS TO HTSEARCH AND HTLOADRELATIVE CHANGED
18: ** 28 May 93 WAIS gateway explicit if no WAIS library linked in.
1.19 timbl 19: ** Dec 93 Bug change around, more reentrant, etc
1.42 frystyk 20: ** 09 May 94 logfile renamed to HTlogfile to avoid clash with WAIS
1.114 frystyk 21: ** 8 Jul 94 Insulate HT_FREE();
1.88 frystyk 22: ** Sep 95 Rewritten, HFN
1.1 timbl 23: */
24:
1.68 frystyk 25: #if !defined(HT_DIRECT_WAIS) && !defined(HT_DEFAULT_WAIS_GATEWAY)
26: #define HT_DEFAULT_WAIS_GATEWAY "http://www.w3.org:8001/"
1.54 frystyk 27: #endif
1.8 timbl 28:
1.67 frystyk 29: /* Library include files */
1.88 frystyk 30: #include "WWWLib.h"
1.93 frystyk 31: #include "HTReqMan.h"
32: #include "HTAccess.h" /* Implemented here */
1.88 frystyk 33:
1.99 frystyk 34: #ifndef VC
35: #define VC "unknown"
36: #endif
37:
1.93 frystyk 38: PRIVATE char * HTAppName = NULL; /* Application name: please supply */
39: PRIVATE char * HTAppVersion = NULL; /* Application version: please supply */
1.2 timbl 40:
1.99 frystyk 41: PRIVATE char * HTLibName = "libwww";
42: PRIVATE char * HTLibVersion = VC;
43:
44: PRIVATE BOOL HTSecure = NO; /* Can we access local file system? */
45:
1.111 frystyk 46: #define PUTBLOCK(b, l) (*target->isa->put_block)(target, b, l)
47:
48: struct _HTStream {
49: HTStreamClass * isa;
50: };
51:
1.59 frystyk 52: /* --------------------------------------------------------------------------*/
1.61 frystyk 53: /* Initialization and Termination of the Library */
54: /* --------------------------------------------------------------------------*/
55:
1.99 frystyk 56: /* Information about the Application
57: ** ---------------------------------
1.93 frystyk 58: */
59: PUBLIC CONST char * HTLib_appName (void)
60: {
1.99 frystyk 61: return HTAppName ? HTAppName : "UNKNOWN";
62: }
63:
64: PUBLIC CONST char * HTLib_appVersion (void)
65: {
66: return HTAppVersion ? HTAppVersion : "0.0";
1.93 frystyk 67: }
68:
1.99 frystyk 69: /* Information about libwww
70: ** ------------------------
71: */
72: PUBLIC CONST char * HTLib_name (void)
73: {
74: return HTLibName ? HTLibName : "UNKNOWN";
75: }
76:
77: PUBLIC CONST char * HTLib_version (void)
78: {
79: return HTLibVersion ? HTLibVersion : "0.0";
80: }
81:
82: /* Access Local File System
83: ** ------------------------
84: ** In this mode we do not tough the local file system at all
1.93 frystyk 85: */
1.99 frystyk 86: PUBLIC BOOL HTLib_secure (void)
87: {
88: return HTSecure;
89: }
90:
91: PUBLIC void HTLib_setSecure (BOOL mode)
1.93 frystyk 92: {
1.99 frystyk 93: HTSecure = mode;
1.93 frystyk 94: }
95:
1.61 frystyk 96: /* HTLibInit
97: **
98: ** This function initiates the Library and it MUST be called when
99: ** starting up an application. See also HTLibTerminate()
100: */
1.93 frystyk 101: PUBLIC BOOL HTLibInit (CONST char * AppName, CONST char * AppVersion)
1.61 frystyk 102: {
1.105 frystyk 103: #ifdef WWW_WIN_ASYNC
1.110 frystyk 104: /*
105: ** We are here starting a hidden window to take care of events from
106: ** the async select() call in the async version of the event loop in
107: ** the Internal event manager (HTEvntrg.c)
108: */
1.105 frystyk 109: HWND htSocketWin;
110: static char className[] = "AsyncWindowClass";
111: WNDCLASS wc;
1.113 frystyk 112: OSVERSIONINFO osInfo;
1.105 frystyk 113:
114: wc.style=0;
115: wc.lpfnWndProc=(WNDPROC)AsyncWindowProc;
116: wc.cbClsExtra=0;
117: wc.cbWndExtra=0;
118: wc.hIcon=0;
119: wc.hCursor=0;
120: wc.hbrBackground=0;
121: wc.lpszMenuName=(LPSTR)0;
122: wc.lpszClassName=className;
1.113 frystyk 123:
124: osInfo.dwOSVersionInfoSize = sizeof(osInfo);
125: GetVersionEx(&osInfo);
126: if (osInfo.dwPlatformId == VER_PLATFORM_WIN32s || osInfo.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS)
127: wc.hInstance=GetModuleHandle(NULL); /* 95 and non threaded platforms */
128: else
129: wc.hInstance=GetCurrentProcess(); /* NT and hopefully everything following */
1.105 frystyk 130: #endif /* WWW_WIN_ASYNC */
131:
1.91 frystyk 132: if (WWWTRACE)
1.115 eric 133: HTTrace("WWWLibInit.. INITIALIZING LIBRARY OF COMMON CODE\n");
1.63 frystyk 134:
1.93 frystyk 135: /* Set the application name and version */
136: if (AppName) {
137: char *ptr;
138: StrAllocCopy(HTAppName, AppName);
139: ptr = HTAppName;
140: while (*ptr) {
141: if (WHITE(*ptr)) *ptr = '_';
142: ptr++;
143: }
144: }
145: if (AppVersion) {
146: char *ptr;
147: StrAllocCopy(HTAppVersion, AppVersion);
148: ptr = HTAppVersion;
149: while (*ptr) {
150: if (WHITE(*ptr)) *ptr = '_';
151: ptr++;
152: }
153: }
154:
155: HTBind_init(); /* Initialize bindings */
1.61 frystyk 156:
1.62 frystyk 157: #ifdef WWWLIB_SIG
1.61 frystyk 158: /* On Solaris (and others?) we get a BROKEN PIPE signal when connecting
1.67 frystyk 159: ** to a port where we should get `connection refused'. We ignore this
1.61 frystyk 160: ** using the following function call
161: */
162: HTSetSignal(); /* Set signals in library */
1.1 timbl 163: #endif
164:
1.105 frystyk 165: #ifdef WWW_WIN_ASYNC
166: if (!RegisterClass(&wc)) {
1.115 eric 167: HTTrace("HTEvent_Loop.. Can't RegisterClass \"%s\"\n", className);
1.105 frystyk 168: return NO;
169: }
1.113 frystyk 170: if (!(htSocketWin = CreateWindow(className, "WWW_WIN_ASYNC", WS_POPUP, CW_USEDEFAULT, CW_USEDEFAULT,
171: CW_USEDEFAULT, CW_USEDEFAULT, 0, 0, wc.hInstance,0))) {
172: char space[50];
1.115 eric 173: HTTrace("HTEvent_Loop.. Can't CreateWindow \"WWW_WIN_ASYNC\" - error:");
1.113 frystyk 174: sprintf(space, "%ld\n", GetLastError());
1.115 eric 175: HTTrace(space);
1.105 frystyk 176: return NO;
177: }
178: HTEvent_setWinHandle (htSocketWin, WM_USER); /* use first available message since app uses none */
179: #endif /* WWW_WIN_ASYNC */
180:
1.108 frystyk 181: #ifdef _WINSOCKAPI_
1.67 frystyk 182: /*
183: ** Initialise WinSock DLL. This must also be shut down! PMH
184: */
185: {
186: WSADATA wsadata;
187: if (WSAStartup(DESIRED_WINSOCK_VERSION, &wsadata)) {
1.91 frystyk 188: if (WWWTRACE)
1.115 eric 189: HTTrace("WWWLibInit.. Can't initialize WinSoc\n");
1.67 frystyk 190: WSACleanup();
191: return NO;
192: }
193: if (wsadata.wVersion < MINIMUM_WINSOCK_VERSION) {
1.91 frystyk 194: if (WWWTRACE)
1.115 eric 195: HTTrace("WWWLibInit.. Bad version of WinSoc\n");
1.67 frystyk 196: WSACleanup();
197: return NO;
198: }
199: }
1.108 frystyk 200: #endif /* _WINSOCKAPI_ */
1.67 frystyk 201:
1.71 frystyk 202: #ifndef NO_TIMEGM
203: HTGetTimeZoneOffset(); /* Find offset from GMT if using mktime() */
204: #endif
1.70 frystyk 205: HTTmp_setRoot(NULL); /* Set up default tmp directory */
1.61 frystyk 206: return YES;
207: }
208:
209:
1.90 frystyk 210: /* HTLibTerminate
211: ** --------------
1.61 frystyk 212: ** This function frees memory kept by the Library and should be called
1.63 frystyk 213: ** before exit of an application (if you are on a PC platform)
1.61 frystyk 214: */
1.101 frystyk 215: PUBLIC BOOL HTLibTerminate (void)
1.61 frystyk 216: {
1.116 ! frystyk 217: if (WWWTRACE) HTTrace("WWWLibTerm.. Cleaning up LIBRARY OF COMMON CODE\n");
! 218:
! 219: HT_FREE(HTAppName); /* Freed thanks to Wade Ogden <wade@ebt.com> */
! 220: HT_FREE(HTAppVersion);
! 221:
1.101 frystyk 222: HTAtom_deleteAll(); /* Remove the atoms */
223: HTDNS_deleteAll(); /* Remove the DNS host cache */
224: HTAnchor_deleteAll(NULL); /* Delete anchors and drop hyperdocs */
1.73 frystyk 225:
1.81 frystyk 226: HTProtocol_deleteAll(); /* Remove bindings between access and protocols */
1.73 frystyk 227: HTBind_deleteAll(); /* Remove bindings between suffixes, media types */
228:
1.77 frystyk 229: HTFreeHostName(); /* Free up some internal strings */
1.63 frystyk 230: HTFreeMailAddress();
1.70 frystyk 231: HTTmp_freeRoot();
1.67 frystyk 232:
1.108 frystyk 233: #ifdef _WINSOCKAPI_
1.67 frystyk 234: WSACleanup();
1.105 frystyk 235: #endif
236:
237: #ifdef WWW_WIN_ASYNC
238: DestroyWindow(HTEvent_getWinHandle(0));
1.67 frystyk 239: #endif
240:
1.61 frystyk 241: return YES;
242: }
243:
1.59 frystyk 244: /* --------------------------------------------------------------------------*/
1.104 frystyk 245: /* Load Access functions */
1.59 frystyk 246: /* --------------------------------------------------------------------------*/
1.33 luotonen 247:
1.90 frystyk 248: /* Request a document
249: ** -----------------
250: ** Private version that requests a document from the request manager
251: ** Returns YES if request accepted, else NO
1.88 frystyk 252: */
1.101 frystyk 253: PRIVATE BOOL HTLoadDocument (HTRequest * request, BOOL recursive)
1.88 frystyk 254: {
255: if (PROT_TRACE) {
1.90 frystyk 256: HTParentAnchor *anchor = HTRequest_anchor(request);
257: char * full_address = HTAnchor_address((HTAnchor *) anchor);
1.115 eric 258: HTTrace("HTAccess.... Accessing document %s\n", full_address);
1.114 frystyk 259: HT_FREE(full_address);
1.88 frystyk 260: }
1.96 frystyk 261: return HTLoad(request, recursive);
1.58 frystyk 262: }
1.1 timbl 263:
264:
1.90 frystyk 265: /* Request a document from absolute name
266: ** -------------------------------------
267: ** Request a document referencd by an absolute URL.
268: ** Returns YES if request accepted, else NO
269: */
270: PUBLIC BOOL HTLoadAbsolute (CONST char * url, HTRequest* request)
271: {
272: if (url && request) {
273: HTAnchor * anchor = HTAnchor_findAddress(url);
274: HTRequest_setAnchor(request, anchor);
275: return HTLoadDocument(request, NO);
276: }
277: return NO;
278: }
279:
280:
281: /* Request a document from absolute name to stream
282: ** -----------------------------------------------
283: ** Request a document referencd by an absolute URL and sending the data
284: ** down a stream. This is _excactly_ the same as HTLoadAbsolute as
285: ** the ourputstream is specified using the function
286: ** HTRequest_setOutputStream(). 'filter' is ignored!
287: ** Returns YES if request accepted, else NO
288: */
289: PUBLIC BOOL HTLoadToStream (CONST char * url, BOOL filter, HTRequest *request)
290: {
291: return HTLoadAbsolute(url, request);
292: }
293:
294:
295: /* Request a document from relative name
296: ** -------------------------------------
297: ** Request a document referenced by a relative URL. The relative URL is
298: ** made absolute by resolving it relative to the address of the 'base'
299: ** anchor.
300: ** Returns YES if request accepted, else NO
301: */
302: PUBLIC BOOL HTLoadRelative (CONST char * relative,
303: HTParentAnchor * base,
304: HTRequest * request)
305: {
306: BOOL status = NO;
307: if (relative && base && request) {
308: char * rel = NULL;
309: char * full_url = NULL;
310: char * base_url = HTAnchor_address((HTAnchor *) base);
311: StrAllocCopy(rel, relative);
312: full_url = HTParse(HTStrip(rel), base_url,
313: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
314: status = HTLoadAbsolute(full_url, request);
1.114 frystyk 315: HT_FREE(rel);
316: HT_FREE(full_url);
317: HT_FREE(base_url);
1.90 frystyk 318: }
319: return status;
320: }
321:
322:
323: /* Request an anchor
324: ** -----------------
325: ** Request the document referenced by the anchor
326: ** Returns YES if request accepted, else NO
327: */
328: PUBLIC BOOL HTLoadAnchor (HTAnchor * anchor, HTRequest * request)
329: {
330: if (anchor && request) {
331: HTRequest_setAnchor(request, anchor);
332: return HTLoadDocument(request, NO);
333: }
334: return NO;
335: }
336:
337:
338: /* Request an anchor
339: ** -----------------
340: ** Same as HTLoadAnchor but any information in the Error Stack in the
341: ** request object is kept, so that any error messages in one
1.52 frystyk 342: ** This function is almost identical to HTLoadAnchor, but it doesn't
343: ** clear the error stack so that the information in there is kept.
1.90 frystyk 344: ** Returns YES if request accepted, else NO
345: */
346: PUBLIC BOOL HTLoadAnchorRecursive (HTAnchor * anchor, HTRequest * request)
347: {
348: if (anchor && request) {
349: HTRequest_setAnchor(request, anchor);
350: return HTLoadDocument(request, YES);
351: }
352: return NO;
353: }
354:
355:
356: /* Search an Anchor
357: ** ----------------
358: ** Performs a keyword search on word given by the user. Adds the keyword
359: ** to the end of the current address and attempts to open the new address.
360: ** The list of keywords must be a space-separated list and spaces will
361: ** be converted to '+' before the request is issued.
362: ** Search can also be performed by HTLoadAbsolute() etc.
363: ** Returns YES if request accepted, else NO
364: */
365: PUBLIC BOOL HTSearch (CONST char * keywords,
366: HTParentAnchor * base,
367: HTRequest * request)
368: {
1.99 frystyk 369: BOOL status = NO;
1.90 frystyk 370: if (keywords && base && request) {
371: char *base_url = HTAnchor_address((HTAnchor *) base);
372: if (*keywords) {
373: char *plus;
374: StrAllocCat(base_url, "?");
375: StrAllocCat(base_url, keywords);
376: plus = strchr(base_url, '?');
377: while (*plus) {
378: if (*plus == ' ') *plus = '+';
379: plus++;
380: }
1.2 timbl 381: }
1.99 frystyk 382: status = HTLoadAbsolute(base_url, request);
1.114 frystyk 383: HT_FREE(base_url);
1.90 frystyk 384: }
1.99 frystyk 385: return status;
1.2 timbl 386: }
387:
388:
1.90 frystyk 389: /* Search a document from absolute name
390: ** ------------------------------------
391: ** Request a document referencd by an absolute URL appended with the
392: ** keywords given. The URL can NOT contain any fragment identifier!
393: ** The list of keywords must be a space-separated list and spaces will
394: ** be converted to '+' before the request is issued.
395: ** Returns YES if request accepted, else NO
396: */
397: PUBLIC BOOL HTSearchAbsolute (CONST char * keywords,
398: CONST char * url,
399: HTRequest * request)
400: {
401: if (url && request) {
402: HTAnchor * anchor = HTAnchor_findAddress(url);
403: return HTSearch(keywords, HTAnchor_parent(anchor), request);
404: }
405: return NO;
1.57 howcome 406: }
407:
1.70 frystyk 408: /* --------------------------------------------------------------------------*/
1.104 frystyk 409: /* Post Access Functions */
1.70 frystyk 410: /* --------------------------------------------------------------------------*/
411:
1.90 frystyk 412: /* Copy an anchor
1.70 frystyk 413: ** --------------
1.90 frystyk 414: ** Fetch the URL (possibly local file URL) and send it using either PUT
415: ** or POST to the remote destination using HTTP. The caller can decide the
416: ** exact method used and which HTTP header fields to transmit by setting
417: ** the user fields in the request structure.
1.92 frystyk 418: ** If posting to NNTP then we can't dispatch at this level but must pass
419: ** the source anchor to the news module that then takes all the refs
420: ** to NNTP and puts into the "newsgroups" header
1.90 frystyk 421: ** Returns YES if request accepted, else NO
1.70 frystyk 422: */
1.109 frystyk 423: PUBLIC BOOL HTCopyAnchor (HTAnchor * src_anchor, HTRequest * main_dest)
1.80 frystyk 424: {
1.106 frystyk 425: HTRequest * src_req;
426: HTList * cur;
1.109 frystyk 427: if (!src_anchor || !main_dest) {
1.115 eric 428: if (WWWTRACE) HTTrace("Copy........ BAD ARGUMENT\n");
1.90 frystyk 429: return NO;
1.109 frystyk 430: }
1.70 frystyk 431:
1.112 frystyk 432: /* Set the source anchor */
433: main_dest->source_anchor = HTAnchor_parent(src_anchor);
434:
1.80 frystyk 435: /* Build the POST web if not already there */
1.109 frystyk 436: if (!main_dest->source) {
437: src_req = HTRequest_dupInternal(main_dest); /* Get a duplicate */
1.80 frystyk 438: HTAnchor_clearHeader((HTParentAnchor *) src_anchor);
1.109 frystyk 439: src_req->method = METHOD_GET;
1.85 frystyk 440: src_req->reload = HT_MEM_REFRESH;
1.104 frystyk 441: src_req->output_stream = NULL;
1.80 frystyk 442: src_req->output_format = WWW_SOURCE; /* We want source (for now) */
443:
444: /* Set up the main link in the source anchor */
445: {
1.106 frystyk 446: HTLink * main_link = HTAnchor_mainLink((HTAnchor *) src_anchor);
447: HTAnchor *main_anchor = HTLink_destination(main_link);
448: HTMethod method = HTLink_method(main_link);
1.85 frystyk 449: if (!main_link || method==METHOD_INVALID) {
1.91 frystyk 450: if (WWWTRACE)
1.115 eric 451: HTTrace("Copy Anchor. No destination found or unspecified method\n");
1.80 frystyk 452: HTRequest_delete(src_req);
1.90 frystyk 453: return NO;
1.80 frystyk 454: }
1.109 frystyk 455: main_dest->GenMask |= HT_G_DATE; /* Send date header */
456: main_dest->reload = HT_CACHE_REFRESH;
457: main_dest->method = method;
458: main_dest->input_format = WWW_SOURCE;
459: HTRequest_addDestination(src_req, main_dest);
460: if (HTLoadAnchor(main_anchor, main_dest) == NO)
461: return NO;
1.80 frystyk 462: }
1.78 frystyk 463:
1.80 frystyk 464: /* For all other links in the source anchor */
1.106 frystyk 465: if ((cur = HTAnchor_subLinks(src_anchor))) {
466: HTLink * pres;
1.109 frystyk 467: while ((pres = (HTLink *) HTList_nextObject(cur))) {
1.106 frystyk 468: HTAnchor *dest = HTLink_destination(pres);
469: HTMethod method = HTLink_method(pres);
1.80 frystyk 470: HTRequest *dest_req;
471: if (!dest || method==METHOD_INVALID) {
1.91 frystyk 472: if (WWWTRACE)
1.115 eric 473: HTTrace("Copy Anchor. Bad anchor setup %p\n",
1.80 frystyk 474: dest);
1.90 frystyk 475: return NO;
1.80 frystyk 476: }
1.109 frystyk 477: dest_req = HTRequest_dupInternal(main_dest);
1.107 frystyk 478: dest_req->GenMask |= HT_G_DATE; /* Send date header */
1.85 frystyk 479: dest_req->reload = HT_CACHE_REFRESH;
1.80 frystyk 480: dest_req->method = method;
1.104 frystyk 481: dest_req->output_stream = NULL;
482: dest_req->output_format = WWW_SOURCE;
1.109 frystyk 483: HTRequest_addDestination(src_req, dest_req);
1.104 frystyk 484:
1.90 frystyk 485: if (HTLoadAnchor(dest, dest_req) == NO)
486: return NO;
1.80 frystyk 487: }
488: }
489: } else { /* Use the existing Post Web and restart it */
1.109 frystyk 490: src_req = main_dest->source;
1.80 frystyk 491: if (src_req->mainDestination)
1.109 frystyk 492: if (HTLoadDocument(main_dest, NO) == NO)
1.90 frystyk 493: return NO;
1.80 frystyk 494: if (src_req->destinations) {
1.106 frystyk 495: HTRequest * pres;
496: cur = HTAnchor_subLinks(src_anchor);
1.80 frystyk 497: while ((pres = (HTRequest *) HTList_nextObject(cur)) != NULL) {
1.90 frystyk 498: if (HTLoadDocument(pres, NO) == NO)
499: return NO;
1.80 frystyk 500: }
501: }
1.78 frystyk 502: }
503:
1.80 frystyk 504: /* Now open the source */
505: return HTLoadAnchor(src_anchor, src_req);
1.70 frystyk 506: }
507:
508:
1.90 frystyk 509: /* Upload an Anchor
1.70 frystyk 510: ** ----------------
1.111 frystyk 511: ** This function can be used to send data along with a request to a remote
512: ** server. It can for example be used to POST form data to a remote HTTP
513: ** server - or it can be used to post a newsletter to a NNTP server. In
514: ** either case, you pass a callback function which the request calls when
515: ** the remote destination is ready to accept data. In this callback
516: ** you get the current request object and a stream into where you can
517: ** write data. It is very important that you return the value returned
518: ** by this stream to the Library so that it knows what to do next. The
519: ** reason is that the outgoing stream might block or an error may
520: ** occur and in that case the Library must know about it. The source
521: ** anchor represents the data object in memory and it points to
522: ** the destination anchor by using the POSTWeb method. The source anchor
523: ** contains metainformation about the data object in memory and the
524: ** destination anchor represents the reponse from the remote server.
1.90 frystyk 525: ** Returns YES if request accepted, else NO
526: */
1.111 frystyk 527: PUBLIC BOOL HTUploadAnchor (HTAnchor * source_anchor,
528: HTRequest * request,
529: HTPostCallback * callback)
530: {
531: HTLink * link = HTAnchor_mainLink((HTAnchor *) source_anchor);
532: HTAnchor * dest_anchor = HTLink_destination(link);
533: HTMethod method = HTLink_method(link);
534: if (!link || method==METHOD_INVALID || !callback) {
535: if (WWWTRACE)
1.115 eric 536: HTTrace("Upload...... No destination found or unspecified method\n");
1.90 frystyk 537: return NO;
1.109 frystyk 538: }
1.111 frystyk 539: request->GenMask |= HT_G_DATE; /* Send date header */
540: request->reload = HT_CACHE_REFRESH;
541: request->method = method;
542: request->source_anchor = HTAnchor_parent(source_anchor);
543: request->PostCallback = callback;
544: return HTLoadAnchor(dest_anchor, request);
545: }
546:
547: /* POST Callback Handler
548: ** ---------------------
549: ** If you do not want to handle the stream interface on your own, you
550: ** can use this function which writes the source anchor hyperdoc to the
551: ** target stream for the anchor upload and also handles the return value
552: ** from the stream. If you don't want to write the source anchor hyperdoc
553: ** then you can register your own callback function that can get the data
554: ** you want.
555: */
556: PUBLIC int HTUpload_callback (HTRequest * request, HTStream * target)
557: {
1.115 eric 558: if (WWWTRACE) HTTrace("Uploading... from callback function\n");
1.111 frystyk 559: if (!request || !request->source_anchor || !target) return HT_ERROR;
560: {
561: int status;
562: HTParentAnchor * source = request->source_anchor;
563: char * document = (char *) HTAnchor_document(request->source_anchor);
564: int len = HTAnchor_length(source);
565: if (len < 0) {
566: len = strlen(document);
567: HTAnchor_setLength(source, len);
568: }
569: status = (*target->isa->put_block)(target, document, len);
570: if (status == HT_OK)
571: return (*target->isa->flush)(target);
572: if (status == HT_WOULD_BLOCK) {
1.115 eric 573: if (PROT_TRACE)HTTrace("POST Anchor. Target WOULD BLOCK\n");
1.111 frystyk 574: return HT_WOULD_BLOCK;
575: } else if (status == HT_PAUSE) {
1.115 eric 576: if (PROT_TRACE) HTTrace("POST Anchor. Target PAUSED\n");
1.111 frystyk 577: return HT_PAUSE;
578: } else if (status > 0) { /* Stream specific return code */
579: if (PROT_TRACE)
1.115 eric 580: HTTrace("POST Anchor. Target returns %d\n", status);
1.111 frystyk 581: return status;
582: } else { /* We have a real error */
1.115 eric 583: if (PROT_TRACE) HTTrace("POST Anchor. Target ERROR\n");
1.111 frystyk 584: return status;
585: }
1.70 frystyk 586: }
1.1 timbl 587: }
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