Annotation of libwww/Library/src/HTAccess.c, revision 1.124
1.120 eric 1: /* htaccess.c
1.61 frystyk 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.
1.124 ! frystyk 6: ** @(#) $Id: HTAccess.c,v 1.123 1996/07/16 02:26:34 frystyk Exp $
1.1 timbl 7: **
8: ** Authors
1.79 frystyk 9: ** TBL Tim Berners-Lee timbl@w3.org
1.4 timbl 10: ** JFG Jean-Francois Groff jfg@dxcern.cern.ch
1.1 timbl 11: ** DD Denis DeLaRoca (310) 825-4580 <CSP1DWD@mvs.oac.ucla.edu>
1.122 frystyk 12: ** HFN Henrik Frystyk, frystyk@w3.org
1.1 timbl 13: ** History
14: ** 8 Jun 92 Telnet hopping prohibited as telnet is not secure TBL
15: ** 26 Jun 92 When over DECnet, suppressed FTP, Gopher and News. JFG
1.42 frystyk 16: ** 6 Oct 92 Moved HTClientHost and HTlogfile into here. TBL
1.1 timbl 17: ** 17 Dec 92 Tn3270 added, bug fix. DD
1.2 timbl 18: ** 4 Feb 93 Access registration, Search escapes bad chars TBL
1.9 timbl 19: ** PARAMETERS TO HTSEARCH AND HTLOADRELATIVE CHANGED
20: ** 28 May 93 WAIS gateway explicit if no WAIS library linked in.
1.19 timbl 21: ** Dec 93 Bug change around, more reentrant, etc
1.42 frystyk 22: ** 09 May 94 logfile renamed to HTlogfile to avoid clash with WAIS
1.114 frystyk 23: ** 8 Jul 94 Insulate HT_FREE();
1.88 frystyk 24: ** Sep 95 Rewritten, HFN
1.1 timbl 25: */
26:
1.67 frystyk 27: /* Library include files */
1.122 frystyk 28: #include "WWWUtil.h"
29: #include "WWWCore.h"
30: #include "WWWStream.h"
1.123 frystyk 31: #include "WWWRules.h"
1.93 frystyk 32: #include "HTReqMan.h"
33: #include "HTAccess.h" /* Implemented here */
1.88 frystyk 34:
1.111 frystyk 35: #define PUTBLOCK(b, l) (*target->isa->put_block)(target, b, l)
36:
37: struct _HTStream {
38: HTStreamClass * isa;
39: };
40:
1.124 ! frystyk 41: typedef enum _HTPutState {
! 42: HT_PUT_SOURCE = 0,
! 43: HT_PUT_DESTINATION
! 44: } HTPutState;
! 45:
! 46: typedef struct _HTPutContext {
! 47: HTParentAnchor * source;
! 48: HTAnchor * destination;
! 49: HTChunk * document;
! 50: HTFormat format;
! 51: HTStream * target; /* Any existing output stream */
! 52: void * placeholder; /* Any existing doc in anchor */
! 53: HTPutState state;
! 54: } HTPutContext;
! 55:
1.123 frystyk 56: /* --------------------------------------------------------------------------*/
57: /* THE GET METHOD */
58: /* --------------------------------------------------------------------------*/
1.33 luotonen 59:
1.90 frystyk 60: /* Request a document
61: ** -----------------
62: ** Private version that requests a document from the request manager
63: ** Returns YES if request accepted, else NO
1.88 frystyk 64: */
1.124 ! frystyk 65: PRIVATE BOOL launch_request (HTRequest * request, BOOL recursive)
1.88 frystyk 66: {
67: if (PROT_TRACE) {
1.90 frystyk 68: HTParentAnchor *anchor = HTRequest_anchor(request);
69: char * full_address = HTAnchor_address((HTAnchor *) anchor);
1.115 eric 70: HTTrace("HTAccess.... Accessing document %s\n", full_address);
1.114 frystyk 71: HT_FREE(full_address);
1.88 frystyk 72: }
1.96 frystyk 73: return HTLoad(request, recursive);
1.58 frystyk 74: }
1.1 timbl 75:
1.90 frystyk 76: /* Request a document from absolute name
77: ** -------------------------------------
78: ** Request a document referencd by an absolute URL.
79: ** Returns YES if request accepted, else NO
80: */
1.122 frystyk 81: PUBLIC BOOL HTLoadAbsolute (const char * url, HTRequest * request)
1.90 frystyk 82: {
83: if (url && request) {
84: HTAnchor * anchor = HTAnchor_findAddress(url);
85: HTRequest_setAnchor(request, anchor);
1.124 ! frystyk 86: return launch_request(request, NO);
1.90 frystyk 87: }
88: return NO;
89: }
90:
1.123 frystyk 91: /* Request a document from relative name
92: ** -------------------------------------
93: ** Request a document referenced by a relative URL. The relative URL is
94: ** made absolute by resolving it relative to the address of the 'base'
95: ** anchor.
96: ** Returns YES if request accepted, else NO
97: */
98: PUBLIC BOOL HTLoadRelative (const char * relative,
99: HTParentAnchor * base,
100: HTRequest * request)
101: {
102: BOOL status = NO;
103: if (relative && base && request) {
104: char * full_url = NULL;
105: char * base_url = HTAnchor_address((HTAnchor *) base);
106: full_url = HTParse(relative, base_url,
107: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
108: status = HTLoadAbsolute(full_url, request);
109: HT_FREE(full_url);
110: HT_FREE(base_url);
111: }
112: return status;
113: }
1.90 frystyk 114:
115: /* Request a document from absolute name to stream
116: ** -----------------------------------------------
117: ** Request a document referencd by an absolute URL and sending the data
1.123 frystyk 118: ** down a stream.
119: ** Returns YES if request accepted, else NO
120: */
121: PUBLIC BOOL HTLoadToStream (const char * url, HTStream * output,
122: HTRequest * request)
123: {
124: if (url && output && request) {
125: HTRequest_setOutputStream(request, output);
126: return HTLoadAbsolute(url, request);
127: }
128: return NO;
129: }
130:
131: /* Load a document and save it ASIS in a local file
132: ** ------------------------------------------------
1.90 frystyk 133: ** Returns YES if request accepted, else NO
134: */
1.123 frystyk 135: PUBLIC BOOL HTLoadToFile (const char * url, HTRequest * request,
136: const char * filename)
1.90 frystyk 137: {
1.123 frystyk 138: if (url && filename && request) {
139: FILE * fp = NULL;
140:
141: /* Check if file exists. If so then ask user if we can replace it */
142: if (access(filename, F_OK) != -1) {
143: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
144: if (prompt) {
145: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_FILE_REPLACE, NULL,
146: NULL, NULL) != YES)
147: return NO;
148: }
149: }
150:
151: /* If replace then open the file */
152: if ((fp = fopen(filename, "wb")) == NULL) {
153: HTRequest_addError(request, ERR_NON_FATAL, NO, HTERR_NO_FILE,
154: (char *) filename, strlen(filename),
155: "HTLoadToFile");
156: return NO;
157: }
158:
159: /* Set the output stream and start the request */
160: HTRequest_setOutputFormat(request, WWW_SOURCE);
161: HTRequest_setOutputStream(request, HTFWriter_new(request, fp, NO));
162: return HTLoadAbsolute(url, request);
163: }
164: return NO;
1.90 frystyk 165: }
166:
1.122 frystyk 167: /*
168: ** Load a URL to a mem buffer
169: ** --------------------------
170: ** Load a request and store the result in a memory buffer.
171: ** Returns chunk if OK - else NULL
172: */
173: PUBLIC HTChunk * HTLoadToChunk (const char * url, HTRequest * request)
174: {
175: if (url && request) {
176: HTChunk * chunk = NULL;
177: HTStream * target = HTStreamToChunk(request, &chunk, 0);
178: HTAnchor * anchor = HTAnchor_findAddress(url);
179: HTRequest_setAnchor(request, anchor);
180: HTRequest_setOutputStream(request, target);
1.124 ! frystyk 181: if (launch_request(request, NO) == YES)
1.122 frystyk 182: return chunk;
183: else {
184: HTChunk_delete(chunk);
185: return NULL;
186: }
187: }
188: return NULL;
189: }
1.90 frystyk 190:
191: /* Request an anchor
192: ** -----------------
193: ** Request the document referenced by the anchor
194: ** Returns YES if request accepted, else NO
195: */
196: PUBLIC BOOL HTLoadAnchor (HTAnchor * anchor, HTRequest * request)
197: {
198: if (anchor && request) {
199: HTRequest_setAnchor(request, anchor);
1.124 ! frystyk 200: return launch_request(request, NO);
1.90 frystyk 201: }
202: return NO;
203: }
204:
205: /* Request an anchor
206: ** -----------------
207: ** Same as HTLoadAnchor but any information in the Error Stack in the
208: ** request object is kept, so that any error messages in one
1.52 frystyk 209: ** This function is almost identical to HTLoadAnchor, but it doesn't
210: ** clear the error stack so that the information in there is kept.
1.90 frystyk 211: ** Returns YES if request accepted, else NO
212: */
213: PUBLIC BOOL HTLoadAnchorRecursive (HTAnchor * anchor, HTRequest * request)
214: {
215: if (anchor && request) {
216: HTRequest_setAnchor(request, anchor);
1.124 ! frystyk 217: return launch_request(request, YES);
1.90 frystyk 218: }
219: return NO;
220: }
221:
1.122 frystyk 222: /*
223: ** Load a URL to a mem buffer
224: ** --------------------------
225: ** Load a request and store the result in a memory buffer.
226: ** Returns chunk if OK - else NULL
227: */
228: PUBLIC HTChunk * HTLoadAnchorToChunk (HTAnchor * anchor, HTRequest * request)
229: {
1.124 ! frystyk 230: HTChunk * chunk = NULL;
1.122 frystyk 231: if (anchor && request) {
232: HTStream * target = HTStreamToChunk(request, &chunk, 0);
233: HTRequest_setAnchor(request, anchor);
234: HTRequest_setOutputStream(request, target);
1.124 ! frystyk 235: if (launch_request(request, NO) == YES)
1.122 frystyk 236: return chunk;
237: else {
238: HTChunk_delete(chunk);
239: return NULL;
240: }
241: }
242: return NULL;
243: }
1.90 frystyk 244:
1.123 frystyk 245: /*
246: ** Load a Rule File
247: ** ----------------
248: ** Load a rule find with the URL specified and add the set of rules to
249: ** the existing set.
250: */
251: PUBLIC BOOL HTLoadRules (const char * url)
252: {
253: BOOL status = NO;
254: if (url) {
255: HTList * list = HTList_new();
256: HTRequest * request = HTRequest_new();
257: HTRequest_setPreemptive(request, YES);
258: HTAlert_setInteractive(NO);
259: HTConversion_add(list, "application/x-www-rules", "*/*", HTRules,
260: 1.0, 0.0, 0.0);
261: HTRequest_setConversion(request, list, YES);
262: status = HTLoadAbsolute(url, request);
263: HTConversion_deleteAll(list);
264: HTRequest_delete(request);
265: }
266: return status;
267: }
268:
269: /* --------------------------------------------------------------------------*/
270: /* GET WITH KEYWORDS (SEARCH) */
271: /* --------------------------------------------------------------------------*/
272:
273: /*
274: ** This function creates a URL with a searh part as defined by RFC 1866
275: ** Both the baseurl and the keywords must be escaped.
276: **
277: ** 1. The form field names and values are escaped: space
278: ** characters are replaced by `+', and then reserved characters
279: ** are escaped as per [URL]; that is, non-alphanumeric
280: ** characters are replaced by `%HH', a percent sign and two
281: ** hexadecimal digits representing the ASCII code of the
282: ** character. Line breaks, as in multi-line text field values,
283: ** are represented as CR LF pairs, i.e. `%0D%0A'.
284: **
285: ** 2. The fields are listed in the order they appear in the
286: ** document with the name separated from the value by `=' and
287: ** the pairs separated from each other by `&'. Fields with null
288: ** values may be omitted. In particular, unselected radio
289: ** buttons and checkboxes should not appear in the encoded
290: ** data, but hidden fields with VALUE attributes present
291: ** should.
292: **
293: ** NOTE - The URI from a query form submission can be
294: ** used in a normal anchor style hyperlink.
295: ** Unfortunately, the use of the `&' character to
296: ** separate form fields interacts with its use in SGML
297: ** attribute values as an entity reference delimiter.
298: ** For example, the URI `http://host/?x=1&y=2' must be
299: ** written `<a href="http://host/?x=1&y=2"' or `<a
300: ** href="http://host/?x=1&y=2">'.
301: **
302: ** HTTP server implementors, and in particular, CGI
303: ** implementors are encouraged to support the use of
304: ** `;' in place of `&' to save users the trouble of
305: ** escaping `&' characters this way.
306: */
307: PRIVATE char * query_url_encode (const char * baseurl, HTChunk * keywords)
308: {
309: char * fullurl = NULL;
310: if (baseurl && keywords && HTChunk_size(keywords)) {
311: int len = strlen(baseurl);
312: fullurl = (char *) HT_MALLOC(len + HTChunk_size(keywords) + 2);
313: sprintf(fullurl, "%s?%s", baseurl, HTChunk_data(keywords));
314: {
315: char * ptr = fullurl+len;
316: while (*ptr) {
317: if (*ptr == ' ') *ptr = '+';
318: ptr++;
319: }
320: }
321: }
322: return fullurl;
323: }
324:
325: PRIVATE char * form_url_encode (const char * baseurl, HTAssocList * formdata)
326: {
327: if (formdata) {
328: BOOL first = YES;
329: int cnt = HTList_count((HTList *) formdata);
330: HTChunk * fullurl = HTChunk_new(128);
331: HTAssoc * pres;
1.124 ! frystyk 332: if (baseurl) {
! 333: HTChunk_puts(fullurl, baseurl);
! 334: HTChunk_putc(fullurl, '?');
! 335: }
1.123 frystyk 336: while (cnt > 0) {
337: pres = (HTAssoc *) HTList_objectAt((HTList *) formdata, --cnt);
338: if (first)
339: first = NO;
340: else
341: HTChunk_putc(fullurl, '&'); /* Could use ';' instead */
342: HTChunk_puts(fullurl, HTAssoc_name(pres));
343: HTChunk_putc(fullurl, '=');
344: HTChunk_puts(fullurl, HTAssoc_value(pres));
345: }
346: return HTChunk_toCString(fullurl);
347: }
348: return NULL;
349: }
350:
351: /* Search a document from absolute name
352: ** ------------------------------------
353: ** Request a document referencd by an absolute URL appended with the
354: ** keywords given. The URL can NOT contain any fragment identifier!
355: ** The list of keywords must be a space-separated list and spaces will
356: ** be converted to '+' before the request is issued.
357: ** Returns YES if request accepted, else NO
358: */
359: PUBLIC BOOL HTSearchAbsolute (HTChunk * keywords,
360: const char * base,
361: HTRequest * request)
362: {
363: if (keywords && base && request) {
364: char * full = query_url_encode(base, keywords);
365: if (full) {
366: HTAnchor * anchor = HTAnchor_findAddress(full);
367: HTRequest_setAnchor(request, anchor);
368: HT_FREE(full);
1.124 ! frystyk 369: return launch_request(request, NO);
1.123 frystyk 370: }
371: }
372: return NO;
373: }
374:
375: /* Search a document from relative name
376: ** -------------------------------------
377: ** Request a document referenced by a relative URL. The relative URL is
378: ** made absolute by resolving it relative to the address of the 'base'
379: ** anchor.
380: ** Returns YES if request accepted, else NO
381: */
382: PUBLIC BOOL HTSearchRelative (HTChunk * keywords,
383: const char * relative,
384: HTParentAnchor * base,
385: HTRequest * request)
386: {
387: BOOL status = NO;
388: if (keywords && relative && base && request) {
389: char * full_url = NULL;
390: char * base_url = HTAnchor_address((HTAnchor *) base);
391: full_url = HTParse(relative, base_url,
392: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
393: status = HTSearchAbsolute(keywords, full_url, request);
394: HT_FREE(full_url);
395: HT_FREE(base_url);
396: }
397: return status;
398: }
399:
400: /*
401: ** Search a string
402: ** ---------------
403: ** This is the same as HTSearchAbsolute but instead of using a chunk
404: ** you can pass a string.
405: */
406: PUBLIC BOOL HTSearchString (const char * keywords,
407: HTAnchor * anchor,
408: HTRequest * request)
409: {
410: BOOL status = NO;
411: if (keywords && anchor && request) {
412: char * base_url = HTAnchor_address((HTAnchor *) anchor);
413: HTChunk * chunk = HTChunk_new(strlen(keywords)+2);
414: HTChunk_puts(chunk, keywords);
415: status = HTSearchAbsolute(chunk, base_url, request);
416: HT_FREE(base_url);
417: HTChunk_delete(chunk);
418: }
419: return status;
420: }
421:
1.90 frystyk 422: /* Search an Anchor
423: ** ----------------
424: ** Performs a keyword search on word given by the user. Adds the keyword
425: ** to the end of the current address and attempts to open the new address.
426: ** The list of keywords must be a space-separated list and spaces will
427: ** be converted to '+' before the request is issued.
428: ** Search can also be performed by HTLoadAbsolute() etc.
429: ** Returns YES if request accepted, else NO
430: */
1.123 frystyk 431: PUBLIC BOOL HTSearchAnchor (HTChunk * keywords,
432: HTAnchor * anchor,
433: HTRequest * request)
1.90 frystyk 434: {
1.99 frystyk 435: BOOL status = NO;
1.123 frystyk 436: if (keywords && anchor && request) {
437: char * base_url = HTAnchor_address(anchor);
438: status = HTSearchAbsolute(keywords, base_url, request);
1.114 frystyk 439: HT_FREE(base_url);
1.90 frystyk 440: }
1.99 frystyk 441: return status;
1.2 timbl 442: }
443:
1.123 frystyk 444: /* --------------------------------------------------------------------------*/
445: /* HANDLING FORMS USING GET AND POST */
446: /* --------------------------------------------------------------------------*/
1.2 timbl 447:
1.123 frystyk 448: /* Send a Form request using GET from absolute name
449: ** ------------------------------------------------
1.90 frystyk 450: ** Request a document referencd by an absolute URL appended with the
1.123 frystyk 451: ** formdata given. The URL can NOT contain any fragment identifier!
452: ** The list of form data must be given as an association list where
453: ** the name is the field name and the value is the value of the field.
454: ** Returns YES if request accepted, else NO
455: */
456: PUBLIC BOOL HTGetFormAbsolute (HTAssocList * formdata,
457: const char * base,
458: HTRequest * request)
459: {
460: if (formdata && base && request) {
461: char * full = form_url_encode(base, formdata);
462: if (full) {
463: HTAnchor * anchor = HTAnchor_findAddress(full);
464: HTRequest_setAnchor(request, anchor);
465: HT_FREE(full);
1.124 ! frystyk 466: return launch_request(request, NO);
1.123 frystyk 467: }
468: }
469: return NO;
470: }
471:
472: /* Send a Form request using GET from relative name
473: ** ------------------------------------------------
474: ** Request a document referencd by a relative URL appended with the
475: ** formdata given. The URL can NOT contain any fragment identifier!
476: ** The list of form data must be given as an association list where
477: ** the name is the field name and the value is the value of the field.
478: ** Returns YES if request accepted, else NO
479: */
480: PUBLIC BOOL HTGetFormRelative (HTAssocList * formdata,
481: const char * relative,
482: HTParentAnchor * base,
483: HTRequest * request)
484: {
485: BOOL status = NO;
486: if (formdata && relative && base && request) {
487: char * full_url = NULL;
488: char * base_url = HTAnchor_address((HTAnchor *) base);
489: full_url=HTParse(relative, base_url,
490: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
491: status = HTGetFormAbsolute(formdata, full_url, request);
492: HT_FREE(full_url);
493: HT_FREE(base_url);
494: }
495: return status;
496: }
497:
498: /* Send a Form request using GET from an anchor
499: ** --------------------------------------------
500: ** Request a document referencd by an anchor object appended with the
501: ** formdata given. The URL can NOT contain any fragment identifier!
502: ** The list of form data must be given as an association list where
503: ** the name is the field name and the value is the value of the field.
1.90 frystyk 504: ** Returns YES if request accepted, else NO
505: */
1.123 frystyk 506: PUBLIC BOOL HTGetFormAnchor (HTAssocList * formdata,
507: HTAnchor * anchor,
508: HTRequest * request)
509: {
510: BOOL status = NO;
511: if (formdata && anchor && request) {
512: char * base_url = HTAnchor_address((HTAnchor *) anchor);
513: status = HTGetFormAbsolute(formdata, base_url, request);
514: HT_FREE(base_url);
515: }
516: return status;
517: }
518:
519: PRIVATE int HTEntity_callback (HTRequest * request, HTStream * target)
520: {
521: HTParentAnchor * entity = HTRequest_entityAnchor(request);
1.124 ! frystyk 522: if (WWWTRACE) HTTrace("Posting Data from callback function\n");
1.123 frystyk 523: if (!request || !entity || !target) return HT_ERROR;
524: {
525: int status;
526: char * document = (char *) HTAnchor_document(entity);
527: int len = HTAnchor_length(entity);
528: status = (*target->isa->put_block)(target, document, len);
529: if (status == HT_OK)
530: return (*target->isa->flush)(target);
531: if (status == HT_WOULD_BLOCK) {
1.124 ! frystyk 532: if (PROT_TRACE)HTTrace("Posting Data Target WOULD BLOCK\n");
1.123 frystyk 533: return HT_WOULD_BLOCK;
534: } else if (status == HT_PAUSE) {
1.124 ! frystyk 535: if (PROT_TRACE) HTTrace("Posting Data. Target PAUSED\n");
1.123 frystyk 536: return HT_PAUSE;
537: } else if (status > 0) { /* Stream specific return code */
538: if (PROT_TRACE)
1.124 ! frystyk 539: HTTrace("Posting Data. Target returns %d\n", status);
1.123 frystyk 540: return status;
541: } else { /* we have a real error */
1.124 ! frystyk 542: if (PROT_TRACE) HTTrace("Posting Data Target ERROR\n");
1.123 frystyk 543: return status;
544: }
545: }
546: }
547:
548: /* Send a Form request using POST from absolute name
549: ** -------------------------------------------------
550: ** Request a document referencd by an absolute URL appended with the
551: ** formdata given. The URL can NOT contain any fragment identifier!
552: ** The list of form data must be given as an association list where
553: ** the name is the field name and the value is the value of the field.
554: */
555: PUBLIC HTParentAnchor * HTPostFormAbsolute (HTAssocList * formdata,
556: const char * base,
557: HTRequest * request)
558: {
559: if (formdata && base && request) {
560: HTAnchor * anchor = HTAnchor_findAddress(base);
561: return HTPostFormAnchor(formdata, anchor, request);
562: }
563: return NULL;
564: }
565:
566: /* Send a Form request using POST from relative name
567: ** -------------------------------------------------
568: ** Request a document referencd by a relative URL appended with the
569: ** formdata given. The URL can NOT contain any fragment identifier!
570: ** The list of form data must be given as an association list where
571: ** the name is the field name and the value is the value of the field.
572: */
573: PUBLIC HTParentAnchor * HTPostFormRelative (HTAssocList * formdata,
574: const char * relative,
575: HTParentAnchor * base,
576: HTRequest * request)
1.90 frystyk 577: {
1.123 frystyk 578: HTParentAnchor * postanchor = NULL;
579: if (formdata && relative && base && request) {
580: char * full_url = NULL;
581: char * base_url = HTAnchor_address((HTAnchor *) base);
582: full_url=HTParse(relative, base_url,
583: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
584: postanchor = HTPostFormAbsolute(formdata, full_url, request);
585: HT_FREE(full_url);
586: HT_FREE(base_url);
587: }
588: return postanchor;
589: }
590:
591: /* Send a Form request using POST from an anchor
592: ** ---------------------------------------------
593: ** Request a document referencd by an anchor object appended with the
594: ** formdata given. The URL can NOT contain any fragment identifier!
595: ** The list of form data must be given as an association list where
596: ** the name is the field name and the value is the value of the field.
597: */
598: PUBLIC HTParentAnchor * HTPostFormAnchor (HTAssocList * formdata,
599: HTAnchor * anchor,
600: HTRequest * request)
601: {
602: HTParentAnchor * postanchor = NULL;
603: if (formdata && anchor && request) {
604: HTUserProfile * up = HTRequest_userProfile(request);
605: char * tmpfile = HTGetTmpFileName(HTUserProfile_tmp(up));
606: char * tmpurl = HTParse(tmpfile, "file:", PARSE_ALL);
607: char * form_encoded = form_url_encode(NULL, formdata);
608: if (form_encoded) {
609:
610: /*
611: ** Now create a new anchor for the post data and set up
612: ** the rest of the metainformation we know about this anchor. The
613: ** tmp anchor may actually already exist from previous postings.
614: */
615: postanchor = (HTParentAnchor *) HTAnchor_findAddress(tmpurl);
616: HTAnchor_clearHeader(postanchor);
617: HTAnchor_setDocument(postanchor, form_encoded);
618: HTAnchor_setLength(postanchor, strlen(form_encoded));
619: HTAnchor_setFormat(postanchor, WWW_FORM);
620:
621: /*
622: ** Bind the temporary anchor to the anchor that will contain the
623: ** response
624: */
625: HTLink_removeAll((HTAnchor *) postanchor);
626: HTLink_add((HTAnchor *) postanchor, (HTAnchor *) anchor,
627: NULL, METHOD_POST);
628:
629: /* Set up the request object */
630: HTRequest_addGnHd(request, HT_G_DATE); /* Send date header */
631: HTRequest_setAnchor(request, anchor);
632: HTRequest_setEntityAnchor(request, postanchor);
633: HTRequest_setMethod(request, METHOD_POST);
634:
635: /* Add the post form callback function to provide the form data */
636: HTRequest_setPostCallback(request, HTEntity_callback);
637:
638: /* Now start the load normally */
1.124 ! frystyk 639: launch_request(request, NO);
1.123 frystyk 640: }
641: HT_FREE(tmpfile);
642: HT_FREE(tmpurl);
1.90 frystyk 643: }
1.123 frystyk 644: return postanchor;
1.57 howcome 645: }
646:
1.70 frystyk 647: /* --------------------------------------------------------------------------*/
1.124 ! frystyk 648: /* PUT A DOCUMENT */
! 649: /* --------------------------------------------------------------------------*/
! 650: PRIVATE BOOL setup_put (HTRequest * request,
! 651: HTParentAnchor * source, HTParentAnchor * dest)
! 652: {
! 653: /*
! 654: ** Check whether we know if it is possible to PUT to this destination
! 655: */
! 656: {
! 657: HTMethod allowed = HTAnchor_methods(dest);
! 658: if (!(allowed & METHOD_PUT)) {
! 659: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
! 660: if (prompt) {
! 661: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_METHOD,
! 662: NULL, NULL, NULL) != YES)
! 663: return NO;
! 664: }
! 665: }
! 666: }
! 667:
! 668: /*
! 669: ** Bind the source anchor to the dest anchor that will contain the
! 670: ** response. If link already exists then ask is we should do it again.
! 671: ** If so then remove the old link and replace it with a new one.
! 672: */
! 673: {
! 674: HTLink *link = HTLink_find((HTAnchor *) source, (HTAnchor *) dest);
! 675: if (link && HTLink_method(link) == METHOD_PUT) {
! 676: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
! 677: if (prompt) {
! 678: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_REDO,
! 679: NULL, NULL, NULL) != YES)
! 680: return NO;
! 681: }
! 682: HTLink_remove((HTAnchor *) source, (HTAnchor *) dest);
! 683: }
! 684: HTLink_add((HTAnchor*) source, (HTAnchor*) dest, NULL, METHOD_PUT);
! 685: }
! 686: return YES;
! 687: }
! 688:
! 689: /* Send an Anchor using PUT from absolute name
! 690: ** -------------------------------------------
! 691: ** Upload a document referenced by an absolute URL appended.
! 692: ** The URL can NOT contain any fragment identifier!
! 693: ** The list of form data must be given as an association list where
! 694: ** the name is the field name and the value is the value of the field.
! 695: */
! 696: PUBLIC BOOL HTPutAbsolute (HTParentAnchor * source,
! 697: const char * destination,
! 698: HTRequest * request)
! 699: {
! 700: if (source && destination && request) {
! 701: HTAnchor * dest = HTAnchor_findAddress(destination);
! 702: return HTPutAnchor(source, dest, request);
! 703: }
! 704: return NO;
! 705: }
! 706:
! 707: /* Send an Anchor using PUT from relative name
! 708: ** -------------------------------------------
! 709: ** Upload a document referenced by a relative URL appended.
! 710: ** The URL can NOT contain any fragment identifier!
! 711: ** The list of form data must be given as an association list where
! 712: ** the name is the field name and the value is the value of the field.
! 713: */
! 714: PUBLIC BOOL HTPutRelative (HTParentAnchor * source,
! 715: const char * relative,
! 716: HTParentAnchor * destination_base,
! 717: HTRequest * request)
! 718: {
! 719: if (source && relative && destination_base && request) {
! 720: BOOL status;
! 721: char * full_url = NULL;
! 722: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
! 723: full_url=HTParse(relative, base_url,
! 724: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
! 725: status = HTPutAbsolute(source, full_url, request);
! 726: HT_FREE(full_url);
! 727: HT_FREE(base_url);
! 728: return status;
! 729: }
! 730: return NO;
! 731: }
! 732:
! 733: /* Send an Anchor using PUT from an anchor
! 734: ** ---------------------------------------
! 735: ** Upload a document referenced by an anchor object appended
! 736: ** The URL can NOT contain any fragment identifier!
! 737: ** The list of form data must be given as an association list where
! 738: ** the name is the field name and the value is the value of the field.
! 739: */
! 740: PUBLIC BOOL HTPutAnchor (HTParentAnchor * source,
! 741: HTAnchor * destination,
! 742: HTRequest * request)
! 743: {
! 744: HTParentAnchor * dest = HTAnchor_parent(destination);
! 745: if (source && dest && request) {
! 746: if (setup_put(request, source, dest) == YES) {
! 747:
! 748: /* Set up the request object */
! 749: HTRequest_addGnHd(request, HT_G_DATE);
! 750: HTRequest_setEntityAnchor(request, source);
! 751: HTRequest_setMethod(request, METHOD_PUT);
! 752: HTRequest_setAnchor(request, destination);
! 753:
! 754: /* Add the entity callback function to provide the form data */
! 755: HTRequest_setPostCallback(request, HTEntity_callback);
! 756:
! 757: /* Now start the load normally */
! 758: return launch_request(request, NO);
! 759: }
! 760: }
! 761: return NO;
! 762: }
! 763:
! 764: /* Send an Anchor using PUT from absolute name
! 765: ** -------------------------------------------
! 766: ** Upload a document referenced by an absolute URL appended.
! 767: ** The URL can NOT contain any fragment identifier!
! 768: ** The list of form data must be given as an association list where
! 769: ** the name is the field name and the value is the value of the field.
! 770: */
! 771: PUBLIC BOOL HTPutStructuredAbsolute (HTParentAnchor * source,
! 772: const char * destination,
! 773: HTRequest * request,
! 774: HTPostCallback * input)
! 775: {
! 776: if (source && destination && request && input) {
! 777: HTAnchor * dest = HTAnchor_findAddress(destination);
! 778: return HTPutStructuredAnchor(source, dest, request, input);
! 779: }
! 780: return NO;
! 781: }
! 782:
! 783: /* Send an Anchor using PUT from relative name
! 784: ** -------------------------------------------
! 785: ** Upload a document referenced by a relative URL appended.
! 786: ** The URL can NOT contain any fragment identifier!
! 787: ** The list of form data must be given as an association list where
! 788: ** the name is the field name and the value is the value of the field.
! 789: */
! 790: PUBLIC BOOL HTPutStructuredRelative (HTParentAnchor * source,
! 791: const char * relative,
! 792: HTParentAnchor * destination_base,
! 793: HTRequest * request,
! 794: HTPostCallback * input)
! 795: {
! 796: if (source && relative && destination_base && request && input) {
! 797: BOOL status;
! 798: char * full_url = NULL;
! 799: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
! 800: full_url=HTParse(relative, base_url,
! 801: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
! 802: status = HTPutStructuredAbsolute(source, full_url, request, input);
! 803: HT_FREE(full_url);
! 804: HT_FREE(base_url);
! 805: return status;
! 806: }
! 807: return NO;
! 808: }
! 809:
! 810: /* Send an Anchor using PUT from an anchor
! 811: ** ---------------------------------------
! 812: ** Upload a document referenced by an anchor object appended
! 813: ** The URL can NOT contain any fragment identifier!
! 814: ** The list of form data must be given as an association list where
! 815: ** the name is the field name and the value is the value of the field.
! 816: */
! 817: PUBLIC BOOL HTPutStructuredAnchor (HTParentAnchor * source,
! 818: HTAnchor * destination,
! 819: HTRequest * request,
! 820: HTPostCallback * input)
! 821: {
! 822: HTParentAnchor * dest = HTAnchor_parent(destination);
! 823: if (source && dest && request) {
! 824: if (setup_put(request, source, dest) == YES) {
! 825:
! 826: /* Set up the request object */
! 827: HTRequest_addGnHd(request, HT_G_DATE);
! 828: HTRequest_setEntityAnchor(request, source);
! 829: HTRequest_setMethod(request, METHOD_PUT);
! 830: HTRequest_setAnchor(request, destination);
! 831:
! 832: /* Add the entity callback function to provide the form data */
! 833: HTRequest_setPostCallback(request, input);
! 834:
! 835: /* Now start the load normally */
! 836: return launch_request(request, NO);
! 837: }
! 838: }
! 839: return NO;
! 840: }
! 841:
! 842: /*
! 843: ** After filter for handling PUT of document. We should now have the
! 844: */
! 845: PRIVATE int HTSaveFilter (HTRequest * request, void * param, int status)
! 846: {
! 847: HTPutContext * me = (HTPutContext *) param;
! 848: if (APP_TRACE)
! 849: HTTrace("Save Filter. Using context %p with state %c\n",
! 850: me, me->state+0x30);
! 851:
! 852: /*
! 853: ** If either the source or the destination has moved then ask the user
! 854: ** what to do. If there is no user then stop
! 855: */
! 856: if (status == HT_TEMP_REDIRECT || status == HT_PERM_REDIRECT) {
! 857: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
! 858: HTAnchor * redirection = HTRequest_redirection(request);
! 859: if (prompt && redirection) {
! 860: if (me->state == HT_PUT_SOURCE) {
! 861: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_SOURCE_MOVED,
! 862: NULL, NULL, NULL) == YES) {
! 863: me->source = HTAnchor_parent(redirection);
! 864: return HT_OK;
! 865: }
! 866: } else {
! 867: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_DESTINATION_MOVED,
! 868: NULL, NULL, NULL) == YES) {
! 869: me->destination = redirection;
! 870: return HT_OK;
! 871: }
! 872: }
! 873: }
! 874: } else if (status != HT_LOADED && status != HT_ERROR) {
! 875: if (APP_TRACE) HTTrace("Save Filter. No action...\n");
! 876: return HT_OK;
! 877: }
! 878:
! 879: /*
! 880: ** If this is the second time we're here then do the clean up. If it is
! 881: ** the first time then start the new load (if we have succeeded in getting
! 882: ** the source)
! 883: */
! 884: if (me->state == HT_PUT_SOURCE && status == HT_LOADED) {
! 885:
! 886: /* Swap the document in the anchor with the new one */
! 887: me->placeholder = HTAnchor_document(me->source);
! 888: HTAnchor_setDocument(me->source, HTChunk_data(me->document));
! 889:
! 890: /* Set up the request object */
! 891: HTRequest_addGnHd(request, HT_G_DATE);
! 892: HTRequest_setEntityAnchor(request, me->source);
! 893: HTRequest_setMethod(request, METHOD_PUT);
! 894: HTRequest_setAnchor(request, me->destination);
! 895: HTRequest_setOutputFormat(request, me->format);
! 896: HTRequest_setOutputStream(request, me->target);
! 897:
! 898: /* Add the entity callback function to provide the form data */
! 899: HTRequest_setPostCallback(request, HTEntity_callback);
! 900:
! 901: /* Now start the load normally */
! 902: me->state = launch_request(request, NO) ?
! 903: HT_PUT_DESTINATION : HT_PUT_SOURCE;
! 904:
! 905: /*
! 906: ** By returning HT_ERROR we make sure that this is the last handler to
! 907: ** be called. We do this as we don't want any other filter to delete
! 908: ** the request object now when we have just started a new one
! 909: ** ourselves
! 910: */
! 911: return HT_ERROR;
! 912:
! 913: } else {
! 914: HTRequest_deleteAfter(request, HTSaveFilter);
! 915: HTAnchor_setDocument(me->source, me->placeholder);
! 916: HTChunk_delete(me->document);
! 917: HT_FREE(me);
! 918: }
! 919: return HT_OK;
! 920: }
! 921:
! 922: /* Send an Anchor using PUT from absolute name
! 923: ** -------------------------------------------
! 924: ** Upload a document referenced by an absolute URL appended.
! 925: ** The URL can NOT contain any fragment identifier!
! 926: ** The list of form data must be given as an association list where
! 927: ** the name is the field name and the value is the value of the field.
! 928: */
! 929: PUBLIC BOOL HTPutDocumentAbsolute (HTParentAnchor * source,
! 930: const char * destination,
! 931: HTRequest * request)
! 932: {
! 933: if (source && destination && request) {
! 934: HTAnchor * dest = HTAnchor_findAddress(destination);
! 935: return HTPutDocumentAnchor(source, dest, request);
! 936: }
! 937: return NO;
! 938: }
! 939:
! 940: /* Send an Anchor using PUT from relative name
! 941: ** -------------------------------------------
! 942: ** Upload a document referenced by a relative URL appended.
! 943: ** The URL can NOT contain any fragment identifier!
! 944: ** The list of form data must be given as an association list where
! 945: ** the name is the field name and the value is the value of the field.
! 946: */
! 947: PUBLIC BOOL HTPutDocumentRelative (HTParentAnchor * source,
! 948: const char * relative,
! 949: HTParentAnchor * destination_base,
! 950: HTRequest * request)
! 951: {
! 952: if (source && relative && destination_base && request) {
! 953: BOOL status;
! 954: char * full_url = NULL;
! 955: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
! 956: full_url=HTParse(relative, base_url,
! 957: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
! 958: status = HTPutDocumentAbsolute(source, full_url, request);
! 959: HT_FREE(full_url);
! 960: HT_FREE(base_url);
! 961: return status;
! 962: }
! 963: return NO;
! 964: }
! 965:
! 966: /* Send an Anchor using PUT from an anchor
! 967: ** ---------------------------------------
! 968: ** Upload a document referenced by an anchor object appended
! 969: ** The URL can NOT contain any fragment identifier!
! 970: ** The source document is first loaded into memory and then the PUT
! 971: ** to the remote server is done using the memory version
! 972: */
! 973: PUBLIC BOOL HTPutDocumentAnchor (HTParentAnchor * source,
! 974: HTAnchor * destination,
! 975: HTRequest * request)
! 976: {
! 977: HTParentAnchor * dest = HTAnchor_parent(destination);
! 978: if (source && dest && request) {
! 979: if (setup_put(request, source, dest) == YES) {
! 980: HTPutContext * context = NULL;
! 981:
! 982: /*
! 983: ** First we register an AFTER filter that can check the result
! 984: ** of the source load if success then it can start the PUT
! 985: ** operation to the destination.
! 986: */
! 987: if (!(context=(HTPutContext *) HT_CALLOC(1, sizeof(HTPutContext))))
! 988: HT_OUTOFMEM("HTPutDocumentAnchor");
! 989: context->source = source;
! 990: context->destination = destination;
! 991: HTRequest_addAfter(request, HTSaveFilter, context, HT_ALL, NO);
! 992:
! 993: /*
! 994: ** We make sure that we are not using a memory cached element.
! 995: ** It's OK to use a file cached element!
! 996: */
! 997: HTRequest_setReloadMode(request, HT_MEM_REFRESH);
! 998:
! 999: /*
! 1000: ** Now we load the source document into a chunk. We specify that
! 1001: ** we want the document ASIS from the source location.
! 1002: */
! 1003: context->format = HTRequest_outputFormat(request);
! 1004: context->target = HTRequest_outputStream(request);
! 1005: HTRequest_setOutputFormat(request, WWW_SOURCE);
! 1006: context->document = HTLoadAnchorToChunk((HTAnchor*)source,request);
! 1007: if (context->document == NULL) {
! 1008: if (APP_TRACE) HTTrace("Put Document No source\n");
! 1009: HT_FREE(context);
! 1010: return NO;
! 1011: }
! 1012: return YES;
! 1013: }
! 1014: }
! 1015: return NO;
! 1016: }
! 1017:
! 1018: /* ------------------------------------------------------------------------- */
1.70 frystyk 1019:
1.90 frystyk 1020: /* Copy an anchor
1.70 frystyk 1021: ** --------------
1.90 frystyk 1022: ** Fetch the URL (possibly local file URL) and send it using either PUT
1023: ** or POST to the remote destination using HTTP. The caller can decide the
1024: ** exact method used and which HTTP header fields to transmit by setting
1025: ** the user fields in the request structure.
1.92 frystyk 1026: ** If posting to NNTP then we can't dispatch at this level but must pass
1027: ** the source anchor to the news module that then takes all the refs
1028: ** to NNTP and puts into the "newsgroups" header
1.70 frystyk 1029: */
1.109 frystyk 1030: PUBLIC BOOL HTCopyAnchor (HTAnchor * src_anchor, HTRequest * main_dest)
1.80 frystyk 1031: {
1.106 frystyk 1032: HTRequest * src_req;
1033: HTList * cur;
1.109 frystyk 1034: if (!src_anchor || !main_dest) {
1.115 eric 1035: if (WWWTRACE) HTTrace("Copy........ BAD ARGUMENT\n");
1.90 frystyk 1036: return NO;
1.109 frystyk 1037: }
1.70 frystyk 1038:
1.112 frystyk 1039: /* Set the source anchor */
1040: main_dest->source_anchor = HTAnchor_parent(src_anchor);
1041:
1.80 frystyk 1042: /* Build the POST web if not already there */
1.109 frystyk 1043: if (!main_dest->source) {
1044: src_req = HTRequest_dupInternal(main_dest); /* Get a duplicate */
1.80 frystyk 1045: HTAnchor_clearHeader((HTParentAnchor *) src_anchor);
1.109 frystyk 1046: src_req->method = METHOD_GET;
1.85 frystyk 1047: src_req->reload = HT_MEM_REFRESH;
1.104 frystyk 1048: src_req->output_stream = NULL;
1.80 frystyk 1049: src_req->output_format = WWW_SOURCE; /* We want source (for now) */
1050:
1051: /* Set up the main link in the source anchor */
1052: {
1.106 frystyk 1053: HTLink * main_link = HTAnchor_mainLink((HTAnchor *) src_anchor);
1054: HTAnchor *main_anchor = HTLink_destination(main_link);
1055: HTMethod method = HTLink_method(main_link);
1.85 frystyk 1056: if (!main_link || method==METHOD_INVALID) {
1.91 frystyk 1057: if (WWWTRACE)
1.115 eric 1058: HTTrace("Copy Anchor. No destination found or unspecified method\n");
1.80 frystyk 1059: HTRequest_delete(src_req);
1.90 frystyk 1060: return NO;
1.80 frystyk 1061: }
1.109 frystyk 1062: main_dest->GenMask |= HT_G_DATE; /* Send date header */
1063: main_dest->reload = HT_CACHE_REFRESH;
1064: main_dest->method = method;
1065: main_dest->input_format = WWW_SOURCE;
1066: HTRequest_addDestination(src_req, main_dest);
1067: if (HTLoadAnchor(main_anchor, main_dest) == NO)
1068: return NO;
1.80 frystyk 1069: }
1.78 frystyk 1070:
1.80 frystyk 1071: /* For all other links in the source anchor */
1.106 frystyk 1072: if ((cur = HTAnchor_subLinks(src_anchor))) {
1073: HTLink * pres;
1.109 frystyk 1074: while ((pres = (HTLink *) HTList_nextObject(cur))) {
1.106 frystyk 1075: HTAnchor *dest = HTLink_destination(pres);
1076: HTMethod method = HTLink_method(pres);
1.80 frystyk 1077: HTRequest *dest_req;
1078: if (!dest || method==METHOD_INVALID) {
1.91 frystyk 1079: if (WWWTRACE)
1.115 eric 1080: HTTrace("Copy Anchor. Bad anchor setup %p\n",
1.80 frystyk 1081: dest);
1.90 frystyk 1082: return NO;
1.80 frystyk 1083: }
1.109 frystyk 1084: dest_req = HTRequest_dupInternal(main_dest);
1.107 frystyk 1085: dest_req->GenMask |= HT_G_DATE; /* Send date header */
1.85 frystyk 1086: dest_req->reload = HT_CACHE_REFRESH;
1.80 frystyk 1087: dest_req->method = method;
1.104 frystyk 1088: dest_req->output_stream = NULL;
1089: dest_req->output_format = WWW_SOURCE;
1.109 frystyk 1090: HTRequest_addDestination(src_req, dest_req);
1.104 frystyk 1091:
1.90 frystyk 1092: if (HTLoadAnchor(dest, dest_req) == NO)
1093: return NO;
1.80 frystyk 1094: }
1095: }
1096: } else { /* Use the existing Post Web and restart it */
1.109 frystyk 1097: src_req = main_dest->source;
1.80 frystyk 1098: if (src_req->mainDestination)
1.124 ! frystyk 1099: if (launch_request(main_dest, NO) == NO)
1.90 frystyk 1100: return NO;
1.80 frystyk 1101: if (src_req->destinations) {
1.106 frystyk 1102: HTRequest * pres;
1103: cur = HTAnchor_subLinks(src_anchor);
1.80 frystyk 1104: while ((pres = (HTRequest *) HTList_nextObject(cur)) != NULL) {
1.124 ! frystyk 1105: if (launch_request(pres, NO) == NO)
1.90 frystyk 1106: return NO;
1.80 frystyk 1107: }
1108: }
1.78 frystyk 1109: }
1110:
1.80 frystyk 1111: /* Now open the source */
1112: return HTLoadAnchor(src_anchor, src_req);
1.70 frystyk 1113: }
1114:
1.90 frystyk 1115: /* Upload an Anchor
1.70 frystyk 1116: ** ----------------
1.111 frystyk 1117: ** This function can be used to send data along with a request to a remote
1118: ** server. It can for example be used to POST form data to a remote HTTP
1119: ** server - or it can be used to post a newsletter to a NNTP server. In
1120: ** either case, you pass a callback function which the request calls when
1121: ** the remote destination is ready to accept data. In this callback
1122: ** you get the current request object and a stream into where you can
1123: ** write data. It is very important that you return the value returned
1124: ** by this stream to the Library so that it knows what to do next. The
1125: ** reason is that the outgoing stream might block or an error may
1126: ** occur and in that case the Library must know about it. The source
1127: ** anchor represents the data object in memory and it points to
1128: ** the destination anchor by using the POSTWeb method. The source anchor
1129: ** contains metainformation about the data object in memory and the
1130: ** destination anchor represents the reponse from the remote server.
1.90 frystyk 1131: ** Returns YES if request accepted, else NO
1132: */
1.111 frystyk 1133: PUBLIC BOOL HTUploadAnchor (HTAnchor * source_anchor,
1134: HTRequest * request,
1135: HTPostCallback * callback)
1136: {
1137: HTLink * link = HTAnchor_mainLink((HTAnchor *) source_anchor);
1138: HTAnchor * dest_anchor = HTLink_destination(link);
1139: HTMethod method = HTLink_method(link);
1140: if (!link || method==METHOD_INVALID || !callback) {
1141: if (WWWTRACE)
1.115 eric 1142: HTTrace("Upload...... No destination found or unspecified method\n");
1.90 frystyk 1143: return NO;
1.109 frystyk 1144: }
1.111 frystyk 1145: request->GenMask |= HT_G_DATE; /* Send date header */
1146: request->reload = HT_CACHE_REFRESH;
1147: request->method = method;
1148: request->source_anchor = HTAnchor_parent(source_anchor);
1149: request->PostCallback = callback;
1150: return HTLoadAnchor(dest_anchor, request);
1151: }
1152:
1153: /* POST Callback Handler
1154: ** ---------------------
1155: ** If you do not want to handle the stream interface on your own, you
1156: ** can use this function which writes the source anchor hyperdoc to the
1157: ** target stream for the anchor upload and also handles the return value
1158: ** from the stream. If you don't want to write the source anchor hyperdoc
1159: ** then you can register your own callback function that can get the data
1160: ** you want.
1161: */
1162: PUBLIC int HTUpload_callback (HTRequest * request, HTStream * target)
1163: {
1.115 eric 1164: if (WWWTRACE) HTTrace("Uploading... from callback function\n");
1.111 frystyk 1165: if (!request || !request->source_anchor || !target) return HT_ERROR;
1166: {
1167: int status;
1168: HTParentAnchor * source = request->source_anchor;
1169: char * document = (char *) HTAnchor_document(request->source_anchor);
1170: int len = HTAnchor_length(source);
1171: if (len < 0) {
1172: len = strlen(document);
1173: HTAnchor_setLength(source, len);
1174: }
1175: status = (*target->isa->put_block)(target, document, len);
1176: if (status == HT_OK)
1177: return (*target->isa->flush)(target);
1178: if (status == HT_WOULD_BLOCK) {
1.115 eric 1179: if (PROT_TRACE)HTTrace("POST Anchor. Target WOULD BLOCK\n");
1.111 frystyk 1180: return HT_WOULD_BLOCK;
1181: } else if (status == HT_PAUSE) {
1.115 eric 1182: if (PROT_TRACE) HTTrace("POST Anchor. Target PAUSED\n");
1.111 frystyk 1183: return HT_PAUSE;
1184: } else if (status > 0) { /* Stream specific return code */
1185: if (PROT_TRACE)
1.115 eric 1186: HTTrace("POST Anchor. Target returns %d\n", status);
1.111 frystyk 1187: return status;
1.120 eric 1188: } else { /* we have a real error */
1.115 eric 1189: if (PROT_TRACE) HTTrace("POST Anchor. Target ERROR\n");
1.111 frystyk 1190: return status;
1191: }
1.70 frystyk 1192: }
1.123 frystyk 1193: }
1194:
1195: /* ------------------------------------------------------------------------- */
1196: /* HEAD METHOD */
1197: /* ------------------------------------------------------------------------- */
1198:
1199: /* Request metainformation about a document from absolute name
1200: ** -----------------------------------------------------------
1201: ** Request a document referencd by an absolute URL.
1202: ** Returns YES if request accepted, else NO
1203: */
1204: PUBLIC BOOL HTHeadAbsolute (const char * url, HTRequest * request)
1205: {
1206: if (url && request) {
1207: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 ! frystyk 1208: return HTHeadAnchor(anchor, request);
1.123 frystyk 1209: }
1210: return NO;
1211: }
1212:
1213: /* Request metainformation about a document from relative name
1214: ** -----------------------------------------------------------
1215: ** Request a document referenced by a relative URL. The relative URL is
1216: ** made absolute by resolving it relative to the address of the 'base'
1217: ** anchor.
1218: ** Returns YES if request accepted, else NO
1219: */
1220: PUBLIC BOOL HTHeadRelative (const char * relative,
1221: HTParentAnchor * base,
1222: HTRequest * request)
1223: {
1224: BOOL status = NO;
1225: if (relative && base && request) {
1226: char * rel = NULL;
1227: char * full_url = NULL;
1228: char * base_url = HTAnchor_address((HTAnchor *) base);
1229: StrAllocCopy(rel, relative);
1230: full_url = HTParse(HTStrip(rel), base_url,
1231: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 ! frystyk 1232: status = HTHeadAbsolute(full_url, request);
1.123 frystyk 1233: HT_FREE(rel);
1234: HT_FREE(full_url);
1235: HT_FREE(base_url);
1236: }
1237: return status;
1238: }
1239:
1240: /* Request metainformation about an anchor
1241: ** --------------------------------------
1242: ** Request the document referenced by the anchor
1243: ** Returns YES if request accepted, else NO
1244: */
1245: PUBLIC BOOL HTHeadAnchor (HTAnchor * anchor, HTRequest * request)
1246: {
1247: if (anchor && request) {
1248: HTRequest_setAnchor(request, anchor);
1.124 ! frystyk 1249: HTRequest_setOutputFormat(request, WWW_MIME);
1.123 frystyk 1250: HTRequest_setMethod(request, METHOD_HEAD);
1.124 ! frystyk 1251: return launch_request(request, NO);
1.123 frystyk 1252: }
1253: return NO;
1254: }
1255:
1256: /* ------------------------------------------------------------------------- */
1257: /* DELETE METHOD */
1258: /* ------------------------------------------------------------------------- */
1259:
1260: /* Delete a document on a remote server
1261: ** ------------------------------------
1262: ** Request a document referencd by an absolute URL.
1263: ** Returns YES if request accepted, else NO
1264: */
1265: PUBLIC BOOL HTDeleteAbsolute (const char * url, HTRequest * request)
1266: {
1267: if (url && request) {
1268: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 ! frystyk 1269: return HTDeleteAnchor(anchor, request);
1.123 frystyk 1270: }
1271: return NO;
1272: }
1273:
1274: /* Request metainformation about a document from relative name
1275: ** -----------------------------------------------------------
1276: ** Request a document referenced by a relative URL. The relative URL is
1277: ** made absolute by resolving it relative to the address of the 'base'
1278: ** anchor.
1279: ** Returns YES if request accepted, else NO
1280: */
1281: PUBLIC BOOL HTDeleteRelative (const char * relative,
1282: HTParentAnchor * base,
1283: HTRequest * request)
1284: {
1285: BOOL status = NO;
1286: if (relative && base && request) {
1287: char * rel = NULL;
1288: char * full_url = NULL;
1289: char * base_url = HTAnchor_address((HTAnchor *) base);
1290: StrAllocCopy(rel, relative);
1291: full_url = HTParse(HTStrip(rel), base_url,
1292: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 ! frystyk 1293: status = HTDeleteAbsolute(full_url, request);
1.123 frystyk 1294: HT_FREE(rel);
1295: HT_FREE(full_url);
1296: HT_FREE(base_url);
1297: }
1298: return status;
1299: }
1300:
1301: /* Request metainformation about an anchor
1302: ** --------------------------------------
1303: ** Request the document referenced by the anchor
1304: ** Returns YES if request accepted, else NO
1305: */
1306: PUBLIC BOOL HTDeleteAnchor (HTAnchor * anchor, HTRequest * request)
1307: {
1308: if (anchor && request) {
1309: HTRequest_setAnchor(request, anchor);
1310: HTRequest_setMethod(request, METHOD_DELETE);
1.124 ! frystyk 1311: return launch_request(request, NO);
! 1312: }
! 1313: return NO;
! 1314: }
! 1315:
! 1316: /* ------------------------------------------------------------------------- */
! 1317: /* OPTIONS METHOD */
! 1318: /* ------------------------------------------------------------------------- */
! 1319:
! 1320: /* Options availeble for document from absolute name
! 1321: ** -------------------------------------------------
! 1322: ** Request a document referencd by an absolute URL.
! 1323: ** Returns YES if request accepted, else NO
! 1324: */
! 1325: PUBLIC BOOL HTOptionsAbsolute (const char * url, HTRequest * request)
! 1326: {
! 1327: if (url && request) {
! 1328: HTAnchor * anchor = HTAnchor_findAddress(url);
! 1329: return HTOptionsAnchor(anchor, request);
! 1330: }
! 1331: return NO;
! 1332: }
! 1333:
! 1334: /* Options available for document from relative name
! 1335: ** -------------------------------------------------
! 1336: ** Request a document referenced by a relative URL. The relative URL is
! 1337: ** made absolute by resolving it relative to the address of the 'base'
! 1338: ** anchor.
! 1339: ** Returns YES if request accepted, else NO
! 1340: */
! 1341: PUBLIC BOOL HTOptionsRelative (const char * relative,
! 1342: HTParentAnchor * base,
! 1343: HTRequest * request)
! 1344: {
! 1345: BOOL status = NO;
! 1346: if (relative && base && request) {
! 1347: char * rel = NULL;
! 1348: char * full_url = NULL;
! 1349: char * base_url = HTAnchor_address((HTAnchor *) base);
! 1350: StrAllocCopy(rel, relative);
! 1351: full_url = HTParse(HTStrip(rel), base_url,
! 1352: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
! 1353: status = HTOptionsAbsolute(full_url, request);
! 1354: HT_FREE(rel);
! 1355: HT_FREE(full_url);
! 1356: HT_FREE(base_url);
! 1357: }
! 1358: return status;
! 1359: }
! 1360:
! 1361: /* Options available for document using Anchor
! 1362: ** -------------------------------------------
! 1363: ** Request the document referenced by the anchor
! 1364: ** Returns YES if request accepted, else NO
! 1365: */
! 1366: PUBLIC BOOL HTOptionsAnchor (HTAnchor * anchor, HTRequest * request)
! 1367: {
! 1368: if (anchor && request) {
! 1369: HTRequest_setAnchor(request, anchor);
! 1370: HTRequest_setMethod(request, METHOD_OPTIONS);
! 1371: return launch_request(request, NO);
1.123 frystyk 1372: }
1373: return NO;
1.1 timbl 1374: }
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