Annotation of libwww/Library/src/HTAccess.c, revision 1.126
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.
1.126 ! frystyk 6: ** @(#) $Id: HTAccess.c,v 1.125 1996/08/05 17:22:05 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 {
1.125 frystyk 42: HT_LOAD_SOURCE = 0,
43: HT_SAVE_DEST
1.124 frystyk 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: {
1.126 ! frystyk 525: BOOL chunking = NO;
1.123 frystyk 526: int status;
527: char * document = (char *) HTAnchor_document(entity);
528: int len = HTAnchor_length(entity);
1.126 ! frystyk 529: if (!document) {
! 530: if (PROT_TRACE) HTTrace("Posting Data No document\n");
! 531: return HT_ERROR;
! 532: }
! 533:
! 534: /*
! 535: ** If the length is unknown (-1) then see if the document is a text
! 536: ** type and in that case take the strlen. If not then we don't know
! 537: ** how much data we can write and must stop
! 538: */
! 539: if (len < 0) {
! 540: HTFormat actual = HTAnchor_format(entity);
! 541: HTFormat tmplate = HTAtom_for("text/*");
! 542: if (HTMIMEMatch(tmplate, actual)) {
! 543: len = strlen(document); /* Naive! */
! 544: chunking = YES;
! 545: } else {
! 546: if (PROT_TRACE)
! 547: HTTrace("Posting Data Must know the length of document %p\n",
! 548: document);
! 549: return HT_ERROR;
! 550: }
! 551: }
! 552:
! 553: /* Send the data down the pipe */
1.123 frystyk 554: status = (*target->isa->put_block)(target, document, len);
1.125 frystyk 555: if (status == HT_LOADED) {
556: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED\n");
557: (*target->isa->flush)(target);
558: return HT_LOADED;
559: }
1.123 frystyk 560: if (status == HT_WOULD_BLOCK) {
1.124 frystyk 561: if (PROT_TRACE)HTTrace("Posting Data Target WOULD BLOCK\n");
1.123 frystyk 562: return HT_WOULD_BLOCK;
563: } else if (status == HT_PAUSE) {
1.126 ! frystyk 564: if (PROT_TRACE) HTTrace("Posting Data Target PAUSED\n");
1.123 frystyk 565: return HT_PAUSE;
1.126 ! frystyk 566: } else if (chunking && status == HT_OK) {
! 567: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED using chunked\n");
! 568: return (*target->isa->put_block)(target, "", 0);
! 569: } else if (status > 0) { /* Stream specific return code */
1.123 frystyk 570: if (PROT_TRACE)
1.124 frystyk 571: HTTrace("Posting Data. Target returns %d\n", status);
1.123 frystyk 572: return status;
573: } else { /* we have a real error */
1.124 frystyk 574: if (PROT_TRACE) HTTrace("Posting Data Target ERROR\n");
1.123 frystyk 575: return status;
576: }
577: }
578: }
579:
580: /* Send a Form request using POST from absolute name
581: ** -------------------------------------------------
582: ** Request a document referencd by an absolute URL appended with the
583: ** formdata given. The URL can NOT contain any fragment identifier!
584: ** The list of form data must be given as an association list where
585: ** the name is the field name and the value is the value of the field.
586: */
587: PUBLIC HTParentAnchor * HTPostFormAbsolute (HTAssocList * formdata,
588: const char * base,
589: HTRequest * request)
590: {
591: if (formdata && base && request) {
592: HTAnchor * anchor = HTAnchor_findAddress(base);
593: return HTPostFormAnchor(formdata, anchor, request);
594: }
595: return NULL;
596: }
597:
598: /* Send a Form request using POST from relative name
599: ** -------------------------------------------------
600: ** Request a document referencd by a relative URL appended with the
601: ** formdata given. The URL can NOT contain any fragment identifier!
602: ** The list of form data must be given as an association list where
603: ** the name is the field name and the value is the value of the field.
604: */
605: PUBLIC HTParentAnchor * HTPostFormRelative (HTAssocList * formdata,
606: const char * relative,
607: HTParentAnchor * base,
608: HTRequest * request)
1.90 frystyk 609: {
1.123 frystyk 610: HTParentAnchor * postanchor = NULL;
611: if (formdata && relative && base && request) {
612: char * full_url = NULL;
613: char * base_url = HTAnchor_address((HTAnchor *) base);
614: full_url=HTParse(relative, base_url,
615: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
616: postanchor = HTPostFormAbsolute(formdata, full_url, request);
617: HT_FREE(full_url);
618: HT_FREE(base_url);
619: }
620: return postanchor;
621: }
622:
623: /* Send a Form request using POST from an anchor
624: ** ---------------------------------------------
625: ** Request a document referencd by an anchor object appended with the
626: ** formdata given. The URL can NOT contain any fragment identifier!
627: ** The list of form data must be given as an association list where
628: ** the name is the field name and the value is the value of the field.
629: */
630: PUBLIC HTParentAnchor * HTPostFormAnchor (HTAssocList * formdata,
631: HTAnchor * anchor,
632: HTRequest * request)
633: {
634: HTParentAnchor * postanchor = NULL;
635: if (formdata && anchor && request) {
636: HTUserProfile * up = HTRequest_userProfile(request);
637: char * tmpfile = HTGetTmpFileName(HTUserProfile_tmp(up));
638: char * tmpurl = HTParse(tmpfile, "file:", PARSE_ALL);
639: char * form_encoded = form_url_encode(NULL, formdata);
640: if (form_encoded) {
641:
642: /*
643: ** Now create a new anchor for the post data and set up
644: ** the rest of the metainformation we know about this anchor. The
645: ** tmp anchor may actually already exist from previous postings.
646: */
647: postanchor = (HTParentAnchor *) HTAnchor_findAddress(tmpurl);
648: HTAnchor_clearHeader(postanchor);
649: HTAnchor_setDocument(postanchor, form_encoded);
650: HTAnchor_setLength(postanchor, strlen(form_encoded));
651: HTAnchor_setFormat(postanchor, WWW_FORM);
652:
653: /*
654: ** Bind the temporary anchor to the anchor that will contain the
655: ** response
656: */
657: HTLink_removeAll((HTAnchor *) postanchor);
658: HTLink_add((HTAnchor *) postanchor, (HTAnchor *) anchor,
659: NULL, METHOD_POST);
660:
661: /* Set up the request object */
662: HTRequest_addGnHd(request, HT_G_DATE); /* Send date header */
663: HTRequest_setAnchor(request, anchor);
664: HTRequest_setEntityAnchor(request, postanchor);
665: HTRequest_setMethod(request, METHOD_POST);
666:
667: /* Add the post form callback function to provide the form data */
668: HTRequest_setPostCallback(request, HTEntity_callback);
669:
670: /* Now start the load normally */
1.124 frystyk 671: launch_request(request, NO);
1.123 frystyk 672: }
673: HT_FREE(tmpfile);
674: HT_FREE(tmpurl);
1.90 frystyk 675: }
1.123 frystyk 676: return postanchor;
1.57 howcome 677: }
678:
1.70 frystyk 679: /* --------------------------------------------------------------------------*/
1.124 frystyk 680: /* PUT A DOCUMENT */
681: /* --------------------------------------------------------------------------*/
1.125 frystyk 682: PRIVATE BOOL setup_anchors (HTRequest * request,
1.124 frystyk 683: HTParentAnchor * source, HTParentAnchor * dest)
684: {
685: /*
686: ** Check whether we know if it is possible to PUT to this destination
687: */
688: {
689: HTMethod allowed = HTAnchor_methods(dest);
690: if (!(allowed & METHOD_PUT)) {
691: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
692: if (prompt) {
693: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_METHOD,
694: NULL, NULL, NULL) != YES)
695: return NO;
696: }
697: }
698: }
699:
700: /*
701: ** Bind the source anchor to the dest anchor that will contain the
702: ** response. If link already exists then ask is we should do it again.
703: ** If so then remove the old link and replace it with a new one.
704: */
705: {
706: HTLink *link = HTLink_find((HTAnchor *) source, (HTAnchor *) dest);
707: if (link && HTLink_method(link) == METHOD_PUT) {
708: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
709: if (prompt) {
710: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_REDO,
711: NULL, NULL, NULL) != YES)
712: return NO;
713: }
714: HTLink_remove((HTAnchor *) source, (HTAnchor *) dest);
715: }
716: HTLink_add((HTAnchor*) source, (HTAnchor*) dest, NULL, METHOD_PUT);
717: }
718: return YES;
719: }
720:
721: /* Send an Anchor using PUT from absolute name
722: ** -------------------------------------------
723: ** Upload a document referenced by an absolute URL appended.
724: ** The URL can NOT contain any fragment identifier!
725: ** The list of form data must be given as an association list where
726: ** the name is the field name and the value is the value of the field.
727: */
728: PUBLIC BOOL HTPutAbsolute (HTParentAnchor * source,
729: const char * destination,
730: HTRequest * request)
731: {
732: if (source && destination && request) {
733: HTAnchor * dest = HTAnchor_findAddress(destination);
734: return HTPutAnchor(source, dest, request);
735: }
736: return NO;
737: }
738:
739: /* Send an Anchor using PUT from relative name
740: ** -------------------------------------------
741: ** Upload a document referenced by a relative URL appended.
742: ** The URL can NOT contain any fragment identifier!
743: ** The list of form data must be given as an association list where
744: ** the name is the field name and the value is the value of the field.
745: */
746: PUBLIC BOOL HTPutRelative (HTParentAnchor * source,
747: const char * relative,
748: HTParentAnchor * destination_base,
749: HTRequest * request)
750: {
751: if (source && relative && destination_base && request) {
752: BOOL status;
753: char * full_url = NULL;
754: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
755: full_url=HTParse(relative, base_url,
756: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
757: status = HTPutAbsolute(source, full_url, request);
758: HT_FREE(full_url);
759: HT_FREE(base_url);
760: return status;
761: }
762: return NO;
763: }
764:
765: /* Send an Anchor using PUT from an anchor
766: ** ---------------------------------------
767: ** Upload a document referenced by an anchor object appended
768: ** The URL can NOT contain any fragment identifier!
769: ** The list of form data must be given as an association list where
770: ** the name is the field name and the value is the value of the field.
771: */
772: PUBLIC BOOL HTPutAnchor (HTParentAnchor * source,
773: HTAnchor * destination,
774: HTRequest * request)
775: {
776: HTParentAnchor * dest = HTAnchor_parent(destination);
777: if (source && dest && request) {
1.125 frystyk 778: if (setup_anchors(request, source, dest) == YES) {
1.124 frystyk 779:
780: /* Set up the request object */
781: HTRequest_addGnHd(request, HT_G_DATE);
782: HTRequest_setEntityAnchor(request, source);
783: HTRequest_setMethod(request, METHOD_PUT);
784: HTRequest_setAnchor(request, destination);
785:
786: /* Add the entity callback function to provide the form data */
787: HTRequest_setPostCallback(request, HTEntity_callback);
788:
789: /* Now start the load normally */
790: return launch_request(request, NO);
791: }
792: }
793: return NO;
794: }
795:
1.125 frystyk 796: /* Send an Anchor using POST from absolute name
797: ** -------------------------------------------
798: ** Upload a document referenced by an absolute URL appended.
799: ** The URL can NOT contain any fragment identifier!
800: ** The list of form data must be given as an association list where
801: ** the name is the field name and the value is the value of the field.
802: */
803: PUBLIC BOOL HTPostAbsolute (HTParentAnchor * source,
804: const char * destination,
805: HTRequest * request)
806: {
807: if (source && destination && request) {
808: HTAnchor * dest = HTAnchor_findAddress(destination);
809: return HTPostAnchor(source, dest, request);
810: }
811: return NO;
812: }
813:
814: /* Send an Anchor using POST from relative name
815: ** -------------------------------------------
816: ** Upload a document referenced by a relative URL appended.
817: ** The URL can NOT contain any fragment identifier!
818: ** The list of form data must be given as an association list where
819: ** the name is the field name and the value is the value of the field.
820: */
821: PUBLIC BOOL HTPostRelative (HTParentAnchor * source,
822: const char * relative,
823: HTParentAnchor * destination_base,
824: HTRequest * request)
825: {
826: if (source && relative && destination_base && request) {
827: BOOL status;
828: char * full_url = NULL;
829: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
830: full_url=HTParse(relative, base_url,
831: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
832: status = HTPostAbsolute(source, full_url, request);
833: HT_FREE(full_url);
834: HT_FREE(base_url);
835: return status;
836: }
837: return NO;
838: }
839:
840: /* Send an Anchor using POST from an anchor
841: ** ---------------------------------------
842: ** Upload a document referenced by an anchor object appended
843: ** The URL can NOT contain any fragment identifier!
844: ** The list of form data must be given as an association list where
845: ** the name is the field name and the value is the value of the field.
846: */
847: PUBLIC BOOL HTPostAnchor (HTParentAnchor * source,
848: HTAnchor * destination,
849: HTRequest * request)
850: {
851: HTParentAnchor * dest = HTAnchor_parent(destination);
852: if (source && dest && request) {
853: if (setup_anchors(request, source, dest) == YES) {
854:
855: /* Set up the request object */
856: HTRequest_addGnHd(request, HT_G_DATE);
857: HTRequest_setEntityAnchor(request, source);
858: HTRequest_setMethod(request, METHOD_POST);
859: HTRequest_setAnchor(request, destination);
860:
861: /* Add the entity callback function to provide the form data */
862: HTRequest_setPostCallback(request, HTEntity_callback);
863:
864: /* Now start the load normally */
865: return launch_request(request, NO);
866: }
867: }
868: return NO;
869: }
870:
1.124 frystyk 871: /* Send an Anchor using PUT from absolute name
872: ** -------------------------------------------
873: ** Upload a document referenced by an absolute URL appended.
874: ** The URL can NOT contain any fragment identifier!
875: ** The list of form data must be given as an association list where
876: ** the name is the field name and the value is the value of the field.
877: */
878: PUBLIC BOOL HTPutStructuredAbsolute (HTParentAnchor * source,
879: const char * destination,
880: HTRequest * request,
881: HTPostCallback * input)
882: {
883: if (source && destination && request && input) {
884: HTAnchor * dest = HTAnchor_findAddress(destination);
885: return HTPutStructuredAnchor(source, dest, request, input);
886: }
887: return NO;
888: }
889:
890: /* Send an Anchor using PUT from relative name
891: ** -------------------------------------------
892: ** Upload a document referenced by a relative URL appended.
893: ** The URL can NOT contain any fragment identifier!
894: ** The list of form data must be given as an association list where
895: ** the name is the field name and the value is the value of the field.
896: */
897: PUBLIC BOOL HTPutStructuredRelative (HTParentAnchor * source,
898: const char * relative,
899: HTParentAnchor * destination_base,
900: HTRequest * request,
901: HTPostCallback * input)
902: {
903: if (source && relative && destination_base && request && input) {
904: BOOL status;
905: char * full_url = NULL;
906: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
907: full_url=HTParse(relative, base_url,
908: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
909: status = HTPutStructuredAbsolute(source, full_url, request, input);
910: HT_FREE(full_url);
911: HT_FREE(base_url);
912: return status;
913: }
914: return NO;
915: }
916:
917: /* Send an Anchor using PUT from an anchor
918: ** ---------------------------------------
919: ** Upload a document referenced by an anchor object appended
920: ** The URL can NOT contain any fragment identifier!
921: ** The list of form data must be given as an association list where
922: ** the name is the field name and the value is the value of the field.
923: */
924: PUBLIC BOOL HTPutStructuredAnchor (HTParentAnchor * source,
925: HTAnchor * destination,
926: HTRequest * request,
927: HTPostCallback * input)
928: {
929: HTParentAnchor * dest = HTAnchor_parent(destination);
930: if (source && dest && request) {
1.125 frystyk 931: if (setup_anchors(request, source, dest) == YES) {
1.124 frystyk 932:
933: /* Set up the request object */
934: HTRequest_addGnHd(request, HT_G_DATE);
935: HTRequest_setEntityAnchor(request, source);
936: HTRequest_setMethod(request, METHOD_PUT);
937: HTRequest_setAnchor(request, destination);
938:
939: /* Add the entity callback function to provide the form data */
940: HTRequest_setPostCallback(request, input);
941:
942: /* Now start the load normally */
943: return launch_request(request, NO);
944: }
945: }
946: return NO;
947: }
948:
949: /*
950: ** After filter for handling PUT of document. We should now have the
951: */
952: PRIVATE int HTSaveFilter (HTRequest * request, void * param, int status)
953: {
954: HTPutContext * me = (HTPutContext *) param;
955: if (APP_TRACE)
956: HTTrace("Save Filter. Using context %p with state %c\n",
957: me, me->state+0x30);
958:
959: /*
1.125 frystyk 960: ** Just ignore authentication in the hope that some other filter will
961: ** handle this.
962: */
963: if (status == HT_NO_ACCESS || status == HT_NO_PROXY_ACCESS) {
964: if (APP_TRACE) HTTrace("Save Filter. Waiting for authentication\n");
965: return HT_OK;
966: }
967:
968: /*
1.124 frystyk 969: ** If either the source or the destination has moved then ask the user
970: ** what to do. If there is no user then stop
971: */
972: if (status == HT_TEMP_REDIRECT || status == HT_PERM_REDIRECT) {
973: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
974: HTAnchor * redirection = HTRequest_redirection(request);
975: if (prompt && redirection) {
1.125 frystyk 976: if (me->state == HT_LOAD_SOURCE) {
1.124 frystyk 977: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_SOURCE_MOVED,
978: NULL, NULL, NULL) == YES) {
979: me->source = HTAnchor_parent(redirection);
980: return HT_OK;
981: }
982: } else {
983: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_DESTINATION_MOVED,
984: NULL, NULL, NULL) == YES) {
985: me->destination = redirection;
986: return HT_OK;
987: }
988: }
989: }
990: }
991:
992: /*
1.125 frystyk 993: ** If we succeeded getting the source then start the PUT itself. Otherwise
994: ** cleanup the mess
1.124 frystyk 995: */
1.125 frystyk 996: if (me->state == HT_LOAD_SOURCE && status == HT_LOADED &&
997: !HTError_hasSeverity(HTRequest_error(request), ERR_INFO)) {
1.124 frystyk 998:
999: /* Swap the document in the anchor with the new one */
1000: me->placeholder = HTAnchor_document(me->source);
1001: HTAnchor_setDocument(me->source, HTChunk_data(me->document));
1002:
1003: /* Set up the request object */
1004: HTRequest_addGnHd(request, HT_G_DATE);
1005: HTRequest_setEntityAnchor(request, me->source);
1006: HTRequest_setMethod(request, METHOD_PUT);
1007: HTRequest_setAnchor(request, me->destination);
1008: HTRequest_setOutputFormat(request, me->format);
1009: HTRequest_setOutputStream(request, me->target);
1010:
1.125 frystyk 1011: /* Turn progress notifications back on */
1012: HTRequest_setInternal(request, NO);
1013:
1.124 frystyk 1014: /* Add the entity callback function to provide the form data */
1015: HTRequest_setPostCallback(request, HTEntity_callback);
1016:
1017: /* Now start the load normally */
1018: me->state = launch_request(request, NO) ?
1.125 frystyk 1019: HT_SAVE_DEST : HT_LOAD_SOURCE;
1.124 frystyk 1020:
1021: /*
1022: ** By returning HT_ERROR we make sure that this is the last handler to
1023: ** be called. We do this as we don't want any other filter to delete
1024: ** the request object now when we have just started a new one
1025: ** ourselves
1026: */
1027: return HT_ERROR;
1028:
1029: } else {
1030: HTRequest_deleteAfter(request, HTSaveFilter);
1031: HTAnchor_setDocument(me->source, me->placeholder);
1032: HTChunk_delete(me->document);
1033: HT_FREE(me);
1034: }
1035: return HT_OK;
1036: }
1037:
1038: /* Send an Anchor using PUT from absolute name
1039: ** -------------------------------------------
1040: ** Upload a document referenced by an absolute URL appended.
1041: ** The URL can NOT contain any fragment identifier!
1042: ** The list of form data must be given as an association list where
1043: ** the name is the field name and the value is the value of the field.
1044: */
1045: PUBLIC BOOL HTPutDocumentAbsolute (HTParentAnchor * source,
1046: const char * destination,
1047: HTRequest * request)
1048: {
1049: if (source && destination && request) {
1050: HTAnchor * dest = HTAnchor_findAddress(destination);
1051: return HTPutDocumentAnchor(source, dest, request);
1052: }
1053: return NO;
1054: }
1055:
1056: /* Send an Anchor using PUT from relative name
1057: ** -------------------------------------------
1058: ** Upload a document referenced by a relative URL appended.
1059: ** The URL can NOT contain any fragment identifier!
1060: ** The list of form data must be given as an association list where
1061: ** the name is the field name and the value is the value of the field.
1062: */
1063: PUBLIC BOOL HTPutDocumentRelative (HTParentAnchor * source,
1064: const char * relative,
1065: HTParentAnchor * destination_base,
1066: HTRequest * request)
1067: {
1068: if (source && relative && destination_base && request) {
1069: BOOL status;
1070: char * full_url = NULL;
1071: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
1072: full_url=HTParse(relative, base_url,
1073: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1074: status = HTPutDocumentAbsolute(source, full_url, request);
1075: HT_FREE(full_url);
1076: HT_FREE(base_url);
1077: return status;
1078: }
1079: return NO;
1080: }
1081:
1082: /* Send an Anchor using PUT from an anchor
1083: ** ---------------------------------------
1084: ** Upload a document referenced by an anchor object appended
1085: ** The URL can NOT contain any fragment identifier!
1086: ** The source document is first loaded into memory and then the PUT
1087: ** to the remote server is done using the memory version
1088: */
1089: PUBLIC BOOL HTPutDocumentAnchor (HTParentAnchor * source,
1090: HTAnchor * destination,
1091: HTRequest * request)
1092: {
1093: HTParentAnchor * dest = HTAnchor_parent(destination);
1094: if (source && dest && request) {
1.125 frystyk 1095: if (setup_anchors(request, source, dest) == YES) {
1.124 frystyk 1096: HTPutContext * context = NULL;
1097:
1098: /*
1099: ** First we register an AFTER filter that can check the result
1100: ** of the source load if success then it can start the PUT
1101: ** operation to the destination.
1102: */
1103: if (!(context=(HTPutContext *) HT_CALLOC(1, sizeof(HTPutContext))))
1104: HT_OUTOFMEM("HTPutDocumentAnchor");
1105: context->source = source;
1106: context->destination = destination;
1107: HTRequest_addAfter(request, HTSaveFilter, context, HT_ALL, NO);
1.125 frystyk 1108:
1109: /* Turn off progress notifications */
1110: HTRequest_setInternal(request, YES);
1.124 frystyk 1111:
1112: /*
1113: ** We make sure that we are not using a memory cached element.
1114: ** It's OK to use a file cached element!
1115: */
1116: HTRequest_setReloadMode(request, HT_MEM_REFRESH);
1117:
1118: /*
1119: ** Now we load the source document into a chunk. We specify that
1120: ** we want the document ASIS from the source location.
1121: */
1122: context->format = HTRequest_outputFormat(request);
1123: context->target = HTRequest_outputStream(request);
1124: HTRequest_setOutputFormat(request, WWW_SOURCE);
1125: context->document = HTLoadAnchorToChunk((HTAnchor*)source,request);
1126: if (context->document == NULL) {
1127: if (APP_TRACE) HTTrace("Put Document No source\n");
1128: HT_FREE(context);
1129: return NO;
1130: }
1131: return YES;
1132: }
1133: }
1134: return NO;
1135: }
1136:
1137: /* ------------------------------------------------------------------------- */
1.70 frystyk 1138:
1.90 frystyk 1139: /* Copy an anchor
1.70 frystyk 1140: ** --------------
1.90 frystyk 1141: ** Fetch the URL (possibly local file URL) and send it using either PUT
1142: ** or POST to the remote destination using HTTP. The caller can decide the
1143: ** exact method used and which HTTP header fields to transmit by setting
1144: ** the user fields in the request structure.
1.92 frystyk 1145: ** If posting to NNTP then we can't dispatch at this level but must pass
1146: ** the source anchor to the news module that then takes all the refs
1147: ** to NNTP and puts into the "newsgroups" header
1.70 frystyk 1148: */
1.109 frystyk 1149: PUBLIC BOOL HTCopyAnchor (HTAnchor * src_anchor, HTRequest * main_dest)
1.80 frystyk 1150: {
1.106 frystyk 1151: HTRequest * src_req;
1152: HTList * cur;
1.109 frystyk 1153: if (!src_anchor || !main_dest) {
1.115 eric 1154: if (WWWTRACE) HTTrace("Copy........ BAD ARGUMENT\n");
1.90 frystyk 1155: return NO;
1.109 frystyk 1156: }
1.70 frystyk 1157:
1.112 frystyk 1158: /* Set the source anchor */
1159: main_dest->source_anchor = HTAnchor_parent(src_anchor);
1160:
1.80 frystyk 1161: /* Build the POST web if not already there */
1.109 frystyk 1162: if (!main_dest->source) {
1163: src_req = HTRequest_dupInternal(main_dest); /* Get a duplicate */
1.80 frystyk 1164: HTAnchor_clearHeader((HTParentAnchor *) src_anchor);
1.109 frystyk 1165: src_req->method = METHOD_GET;
1.85 frystyk 1166: src_req->reload = HT_MEM_REFRESH;
1.104 frystyk 1167: src_req->output_stream = NULL;
1.80 frystyk 1168: src_req->output_format = WWW_SOURCE; /* We want source (for now) */
1169:
1170: /* Set up the main link in the source anchor */
1171: {
1.106 frystyk 1172: HTLink * main_link = HTAnchor_mainLink((HTAnchor *) src_anchor);
1173: HTAnchor *main_anchor = HTLink_destination(main_link);
1174: HTMethod method = HTLink_method(main_link);
1.85 frystyk 1175: if (!main_link || method==METHOD_INVALID) {
1.91 frystyk 1176: if (WWWTRACE)
1.115 eric 1177: HTTrace("Copy Anchor. No destination found or unspecified method\n");
1.80 frystyk 1178: HTRequest_delete(src_req);
1.90 frystyk 1179: return NO;
1.80 frystyk 1180: }
1.109 frystyk 1181: main_dest->GenMask |= HT_G_DATE; /* Send date header */
1182: main_dest->reload = HT_CACHE_REFRESH;
1183: main_dest->method = method;
1184: main_dest->input_format = WWW_SOURCE;
1185: HTRequest_addDestination(src_req, main_dest);
1186: if (HTLoadAnchor(main_anchor, main_dest) == NO)
1187: return NO;
1.80 frystyk 1188: }
1.78 frystyk 1189:
1.80 frystyk 1190: /* For all other links in the source anchor */
1.106 frystyk 1191: if ((cur = HTAnchor_subLinks(src_anchor))) {
1192: HTLink * pres;
1.109 frystyk 1193: while ((pres = (HTLink *) HTList_nextObject(cur))) {
1.106 frystyk 1194: HTAnchor *dest = HTLink_destination(pres);
1195: HTMethod method = HTLink_method(pres);
1.80 frystyk 1196: HTRequest *dest_req;
1197: if (!dest || method==METHOD_INVALID) {
1.91 frystyk 1198: if (WWWTRACE)
1.115 eric 1199: HTTrace("Copy Anchor. Bad anchor setup %p\n",
1.80 frystyk 1200: dest);
1.90 frystyk 1201: return NO;
1.80 frystyk 1202: }
1.109 frystyk 1203: dest_req = HTRequest_dupInternal(main_dest);
1.107 frystyk 1204: dest_req->GenMask |= HT_G_DATE; /* Send date header */
1.85 frystyk 1205: dest_req->reload = HT_CACHE_REFRESH;
1.80 frystyk 1206: dest_req->method = method;
1.104 frystyk 1207: dest_req->output_stream = NULL;
1208: dest_req->output_format = WWW_SOURCE;
1.109 frystyk 1209: HTRequest_addDestination(src_req, dest_req);
1.104 frystyk 1210:
1.90 frystyk 1211: if (HTLoadAnchor(dest, dest_req) == NO)
1212: return NO;
1.80 frystyk 1213: }
1214: }
1215: } else { /* Use the existing Post Web and restart it */
1.109 frystyk 1216: src_req = main_dest->source;
1.80 frystyk 1217: if (src_req->mainDestination)
1.124 frystyk 1218: if (launch_request(main_dest, NO) == NO)
1.90 frystyk 1219: return NO;
1.80 frystyk 1220: if (src_req->destinations) {
1.106 frystyk 1221: HTRequest * pres;
1222: cur = HTAnchor_subLinks(src_anchor);
1.80 frystyk 1223: while ((pres = (HTRequest *) HTList_nextObject(cur)) != NULL) {
1.124 frystyk 1224: if (launch_request(pres, NO) == NO)
1.90 frystyk 1225: return NO;
1.80 frystyk 1226: }
1227: }
1.78 frystyk 1228: }
1229:
1.80 frystyk 1230: /* Now open the source */
1231: return HTLoadAnchor(src_anchor, src_req);
1.70 frystyk 1232: }
1233:
1.90 frystyk 1234: /* Upload an Anchor
1.70 frystyk 1235: ** ----------------
1.111 frystyk 1236: ** This function can be used to send data along with a request to a remote
1237: ** server. It can for example be used to POST form data to a remote HTTP
1238: ** server - or it can be used to post a newsletter to a NNTP server. In
1239: ** either case, you pass a callback function which the request calls when
1240: ** the remote destination is ready to accept data. In this callback
1241: ** you get the current request object and a stream into where you can
1242: ** write data. It is very important that you return the value returned
1243: ** by this stream to the Library so that it knows what to do next. The
1244: ** reason is that the outgoing stream might block or an error may
1245: ** occur and in that case the Library must know about it. The source
1246: ** anchor represents the data object in memory and it points to
1247: ** the destination anchor by using the POSTWeb method. The source anchor
1248: ** contains metainformation about the data object in memory and the
1249: ** destination anchor represents the reponse from the remote server.
1.90 frystyk 1250: ** Returns YES if request accepted, else NO
1251: */
1.111 frystyk 1252: PUBLIC BOOL HTUploadAnchor (HTAnchor * source_anchor,
1253: HTRequest * request,
1254: HTPostCallback * callback)
1255: {
1256: HTLink * link = HTAnchor_mainLink((HTAnchor *) source_anchor);
1257: HTAnchor * dest_anchor = HTLink_destination(link);
1258: HTMethod method = HTLink_method(link);
1259: if (!link || method==METHOD_INVALID || !callback) {
1260: if (WWWTRACE)
1.115 eric 1261: HTTrace("Upload...... No destination found or unspecified method\n");
1.90 frystyk 1262: return NO;
1.109 frystyk 1263: }
1.111 frystyk 1264: request->GenMask |= HT_G_DATE; /* Send date header */
1265: request->reload = HT_CACHE_REFRESH;
1266: request->method = method;
1267: request->source_anchor = HTAnchor_parent(source_anchor);
1268: request->PostCallback = callback;
1269: return HTLoadAnchor(dest_anchor, request);
1270: }
1271:
1272: /* POST Callback Handler
1273: ** ---------------------
1274: ** If you do not want to handle the stream interface on your own, you
1275: ** can use this function which writes the source anchor hyperdoc to the
1276: ** target stream for the anchor upload and also handles the return value
1277: ** from the stream. If you don't want to write the source anchor hyperdoc
1278: ** then you can register your own callback function that can get the data
1279: ** you want.
1280: */
1281: PUBLIC int HTUpload_callback (HTRequest * request, HTStream * target)
1282: {
1.115 eric 1283: if (WWWTRACE) HTTrace("Uploading... from callback function\n");
1.111 frystyk 1284: if (!request || !request->source_anchor || !target) return HT_ERROR;
1285: {
1286: int status;
1287: HTParentAnchor * source = request->source_anchor;
1288: char * document = (char *) HTAnchor_document(request->source_anchor);
1289: int len = HTAnchor_length(source);
1290: if (len < 0) {
1291: len = strlen(document);
1292: HTAnchor_setLength(source, len);
1293: }
1294: status = (*target->isa->put_block)(target, document, len);
1295: if (status == HT_OK)
1296: return (*target->isa->flush)(target);
1297: if (status == HT_WOULD_BLOCK) {
1.115 eric 1298: if (PROT_TRACE)HTTrace("POST Anchor. Target WOULD BLOCK\n");
1.111 frystyk 1299: return HT_WOULD_BLOCK;
1300: } else if (status == HT_PAUSE) {
1.115 eric 1301: if (PROT_TRACE) HTTrace("POST Anchor. Target PAUSED\n");
1.111 frystyk 1302: return HT_PAUSE;
1303: } else if (status > 0) { /* Stream specific return code */
1304: if (PROT_TRACE)
1.115 eric 1305: HTTrace("POST Anchor. Target returns %d\n", status);
1.111 frystyk 1306: return status;
1.120 eric 1307: } else { /* we have a real error */
1.115 eric 1308: if (PROT_TRACE) HTTrace("POST Anchor. Target ERROR\n");
1.111 frystyk 1309: return status;
1310: }
1.70 frystyk 1311: }
1.123 frystyk 1312: }
1313:
1314: /* ------------------------------------------------------------------------- */
1315: /* HEAD METHOD */
1316: /* ------------------------------------------------------------------------- */
1317:
1318: /* Request metainformation about a document from absolute name
1319: ** -----------------------------------------------------------
1320: ** Request a document referencd by an absolute URL.
1321: ** Returns YES if request accepted, else NO
1322: */
1323: PUBLIC BOOL HTHeadAbsolute (const char * url, HTRequest * request)
1324: {
1325: if (url && request) {
1326: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1327: return HTHeadAnchor(anchor, request);
1.123 frystyk 1328: }
1329: return NO;
1330: }
1331:
1332: /* Request metainformation about a document from relative name
1333: ** -----------------------------------------------------------
1334: ** Request a document referenced by a relative URL. The relative URL is
1335: ** made absolute by resolving it relative to the address of the 'base'
1336: ** anchor.
1337: ** Returns YES if request accepted, else NO
1338: */
1339: PUBLIC BOOL HTHeadRelative (const char * relative,
1340: HTParentAnchor * base,
1341: HTRequest * request)
1342: {
1343: BOOL status = NO;
1344: if (relative && base && request) {
1345: char * rel = NULL;
1346: char * full_url = NULL;
1347: char * base_url = HTAnchor_address((HTAnchor *) base);
1348: StrAllocCopy(rel, relative);
1349: full_url = HTParse(HTStrip(rel), base_url,
1350: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1351: status = HTHeadAbsolute(full_url, request);
1.123 frystyk 1352: HT_FREE(rel);
1353: HT_FREE(full_url);
1354: HT_FREE(base_url);
1355: }
1356: return status;
1357: }
1358:
1359: /* Request metainformation about an anchor
1360: ** --------------------------------------
1361: ** Request the document referenced by the anchor
1362: ** Returns YES if request accepted, else NO
1363: */
1364: PUBLIC BOOL HTHeadAnchor (HTAnchor * anchor, HTRequest * request)
1365: {
1366: if (anchor && request) {
1367: HTRequest_setAnchor(request, anchor);
1.124 frystyk 1368: HTRequest_setOutputFormat(request, WWW_MIME);
1.123 frystyk 1369: HTRequest_setMethod(request, METHOD_HEAD);
1.124 frystyk 1370: return launch_request(request, NO);
1.123 frystyk 1371: }
1372: return NO;
1373: }
1374:
1375: /* ------------------------------------------------------------------------- */
1376: /* DELETE METHOD */
1377: /* ------------------------------------------------------------------------- */
1378:
1379: /* Delete a document on a remote server
1380: ** ------------------------------------
1381: ** Request a document referencd by an absolute URL.
1382: ** Returns YES if request accepted, else NO
1383: */
1384: PUBLIC BOOL HTDeleteAbsolute (const char * url, HTRequest * request)
1385: {
1386: if (url && request) {
1387: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1388: return HTDeleteAnchor(anchor, request);
1.123 frystyk 1389: }
1390: return NO;
1391: }
1392:
1393: /* Request metainformation about a document from relative name
1394: ** -----------------------------------------------------------
1395: ** Request a document referenced by a relative URL. The relative URL is
1396: ** made absolute by resolving it relative to the address of the 'base'
1397: ** anchor.
1398: ** Returns YES if request accepted, else NO
1399: */
1400: PUBLIC BOOL HTDeleteRelative (const char * relative,
1401: HTParentAnchor * base,
1402: HTRequest * request)
1403: {
1404: BOOL status = NO;
1405: if (relative && base && request) {
1406: char * rel = NULL;
1407: char * full_url = NULL;
1408: char * base_url = HTAnchor_address((HTAnchor *) base);
1409: StrAllocCopy(rel, relative);
1410: full_url = HTParse(HTStrip(rel), base_url,
1411: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1412: status = HTDeleteAbsolute(full_url, request);
1.123 frystyk 1413: HT_FREE(rel);
1414: HT_FREE(full_url);
1415: HT_FREE(base_url);
1416: }
1417: return status;
1418: }
1419:
1420: /* Request metainformation about an anchor
1421: ** --------------------------------------
1422: ** Request the document referenced by the anchor
1423: ** Returns YES if request accepted, else NO
1424: */
1425: PUBLIC BOOL HTDeleteAnchor (HTAnchor * anchor, HTRequest * request)
1426: {
1427: if (anchor && request) {
1428: HTRequest_setAnchor(request, anchor);
1429: HTRequest_setMethod(request, METHOD_DELETE);
1.124 frystyk 1430: return launch_request(request, NO);
1431: }
1432: return NO;
1433: }
1434:
1435: /* ------------------------------------------------------------------------- */
1436: /* OPTIONS METHOD */
1437: /* ------------------------------------------------------------------------- */
1438:
1439: /* Options availeble for document from absolute name
1440: ** -------------------------------------------------
1441: ** Request a document referencd by an absolute URL.
1442: ** Returns YES if request accepted, else NO
1443: */
1444: PUBLIC BOOL HTOptionsAbsolute (const char * url, HTRequest * request)
1445: {
1446: if (url && request) {
1447: HTAnchor * anchor = HTAnchor_findAddress(url);
1448: return HTOptionsAnchor(anchor, request);
1449: }
1450: return NO;
1451: }
1452:
1453: /* Options available for document from relative name
1454: ** -------------------------------------------------
1455: ** Request a document referenced by a relative URL. The relative URL is
1456: ** made absolute by resolving it relative to the address of the 'base'
1457: ** anchor.
1458: ** Returns YES if request accepted, else NO
1459: */
1460: PUBLIC BOOL HTOptionsRelative (const char * relative,
1461: HTParentAnchor * base,
1462: HTRequest * request)
1463: {
1464: BOOL status = NO;
1465: if (relative && base && request) {
1466: char * rel = NULL;
1467: char * full_url = NULL;
1468: char * base_url = HTAnchor_address((HTAnchor *) base);
1469: StrAllocCopy(rel, relative);
1470: full_url = HTParse(HTStrip(rel), base_url,
1471: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1472: status = HTOptionsAbsolute(full_url, request);
1473: HT_FREE(rel);
1474: HT_FREE(full_url);
1475: HT_FREE(base_url);
1476: }
1477: return status;
1478: }
1479:
1480: /* Options available for document using Anchor
1481: ** -------------------------------------------
1482: ** Request the document referenced by the anchor
1483: ** Returns YES if request accepted, else NO
1484: */
1485: PUBLIC BOOL HTOptionsAnchor (HTAnchor * anchor, HTRequest * request)
1486: {
1487: if (anchor && request) {
1488: HTRequest_setAnchor(request, anchor);
1489: HTRequest_setMethod(request, METHOD_OPTIONS);
1490: return launch_request(request, NO);
1.123 frystyk 1491: }
1492: return NO;
1.1 timbl 1493: }
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