Annotation of libwww/Library/src/HTAccess.c, revision 1.145
1.135 frystyk 1: /*
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.
1.145 ! frystyk 6: ** @(#) $Id: HTAccess.c,v 1.144 1998/07/17 17:15:14 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"
1.132 frystyk 31: #include "HTProxy.h"
32: #include "HTRules.h"
1.93 frystyk 33: #include "HTReqMan.h"
34: #include "HTAccess.h" /* Implemented here */
1.88 frystyk 35:
1.111 frystyk 36: #define PUTBLOCK(b, l) (*target->isa->put_block)(target, b, l)
37:
38: struct _HTStream {
39: HTStreamClass * isa;
40: };
41:
1.124 frystyk 42: typedef enum _HTPutState {
1.125 frystyk 43: HT_LOAD_SOURCE = 0,
1.128 frystyk 44: HT_SAVE_DEST,
45: HT_ABORT_SAVE
1.124 frystyk 46: } HTPutState;
47:
48: typedef struct _HTPutContext {
49: HTParentAnchor * source;
50: HTAnchor * destination;
51: HTChunk * document;
52: HTFormat format;
53: HTStream * target; /* Any existing output stream */
54: void * placeholder; /* Any existing doc in anchor */
55: HTPutState state;
56: } HTPutContext;
57:
1.123 frystyk 58: /* --------------------------------------------------------------------------*/
59: /* THE GET METHOD */
60: /* --------------------------------------------------------------------------*/
1.33 luotonen 61:
1.90 frystyk 62: /* Request a document
63: ** -----------------
64: ** Private version that requests a document from the request manager
65: ** Returns YES if request accepted, else NO
1.88 frystyk 66: */
1.124 frystyk 67: PRIVATE BOOL launch_request (HTRequest * request, BOOL recursive)
1.88 frystyk 68: {
69: if (PROT_TRACE) {
1.90 frystyk 70: HTParentAnchor *anchor = HTRequest_anchor(request);
71: char * full_address = HTAnchor_address((HTAnchor *) anchor);
1.115 eric 72: HTTrace("HTAccess.... Accessing document %s\n", full_address);
1.114 frystyk 73: HT_FREE(full_address);
1.88 frystyk 74: }
1.96 frystyk 75: return HTLoad(request, recursive);
1.58 frystyk 76: }
1.1 timbl 77:
1.90 frystyk 78: /* Request a document from absolute name
79: ** -------------------------------------
80: ** Request a document referencd by an absolute URL.
81: ** Returns YES if request accepted, else NO
82: */
1.122 frystyk 83: PUBLIC BOOL HTLoadAbsolute (const char * url, HTRequest * request)
1.90 frystyk 84: {
85: if (url && request) {
86: HTAnchor * anchor = HTAnchor_findAddress(url);
87: HTRequest_setAnchor(request, anchor);
1.124 frystyk 88: return launch_request(request, NO);
1.90 frystyk 89: }
90: return NO;
91: }
92:
1.123 frystyk 93: /* Request a document from relative name
94: ** -------------------------------------
95: ** Request a document referenced by a relative URL. The relative URL is
96: ** made absolute by resolving it relative to the address of the 'base'
97: ** anchor.
98: ** Returns YES if request accepted, else NO
99: */
100: PUBLIC BOOL HTLoadRelative (const char * relative,
101: HTParentAnchor * base,
102: HTRequest * request)
103: {
104: BOOL status = NO;
105: if (relative && base && request) {
106: char * full_url = NULL;
107: char * base_url = HTAnchor_address((HTAnchor *) base);
108: full_url = HTParse(relative, base_url,
109: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
110: status = HTLoadAbsolute(full_url, request);
111: HT_FREE(full_url);
112: HT_FREE(base_url);
113: }
114: return status;
115: }
1.90 frystyk 116:
117: /* Request a document from absolute name to stream
118: ** -----------------------------------------------
119: ** Request a document referencd by an absolute URL and sending the data
1.123 frystyk 120: ** down a stream.
121: ** Returns YES if request accepted, else NO
122: */
123: PUBLIC BOOL HTLoadToStream (const char * url, HTStream * output,
124: HTRequest * request)
125: {
126: if (url && output && request) {
127: HTRequest_setOutputStream(request, output);
128: return HTLoadAbsolute(url, request);
129: }
130: return NO;
131: }
132:
133: /* Load a document and save it ASIS in a local file
134: ** ------------------------------------------------
1.90 frystyk 135: ** Returns YES if request accepted, else NO
136: */
1.123 frystyk 137: PUBLIC BOOL HTLoadToFile (const char * url, HTRequest * request,
138: const char * filename)
1.90 frystyk 139: {
1.123 frystyk 140: if (url && filename && request) {
141: FILE * fp = NULL;
142:
143: /* Check if file exists. If so then ask user if we can replace it */
144: if (access(filename, F_OK) != -1) {
145: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
146: if (prompt) {
147: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_FILE_REPLACE, NULL,
148: NULL, NULL) != YES)
149: return NO;
150: }
151: }
152:
153: /* If replace then open the file */
154: if ((fp = fopen(filename, "wb")) == NULL) {
155: HTRequest_addError(request, ERR_NON_FATAL, NO, HTERR_NO_FILE,
156: (char *) filename, strlen(filename),
157: "HTLoadToFile");
158: return NO;
159: }
160:
161: /* Set the output stream and start the request */
162: HTRequest_setOutputFormat(request, WWW_SOURCE);
163: HTRequest_setOutputStream(request, HTFWriter_new(request, fp, NO));
1.144 frystyk 164: if (HTLoadAbsolute(url, request) == NO) {
165: fclose(fp);
166: return NO;
167: } else
168: return YES;
1.123 frystyk 169: }
170: return NO;
1.90 frystyk 171: }
172:
1.122 frystyk 173: /*
174: ** Load a URL to a mem buffer
175: ** --------------------------
176: ** Load a request and store the result in a memory buffer.
177: ** Returns chunk if OK - else NULL
178: */
179: PUBLIC HTChunk * HTLoadToChunk (const char * url, HTRequest * request)
180: {
181: if (url && request) {
182: HTChunk * chunk = NULL;
183: HTStream * target = HTStreamToChunk(request, &chunk, 0);
184: HTAnchor * anchor = HTAnchor_findAddress(url);
185: HTRequest_setAnchor(request, anchor);
186: HTRequest_setOutputStream(request, target);
1.124 frystyk 187: if (launch_request(request, NO) == YES)
1.122 frystyk 188: return chunk;
189: else {
190: HTChunk_delete(chunk);
191: return NULL;
192: }
193: }
194: return NULL;
195: }
1.90 frystyk 196:
197: /* Request an anchor
198: ** -----------------
199: ** Request the document referenced by the anchor
200: ** Returns YES if request accepted, else NO
201: */
202: PUBLIC BOOL HTLoadAnchor (HTAnchor * anchor, HTRequest * request)
203: {
204: if (anchor && request) {
205: HTRequest_setAnchor(request, anchor);
1.124 frystyk 206: return launch_request(request, NO);
1.90 frystyk 207: }
208: return NO;
209: }
210:
211: /* Request an anchor
212: ** -----------------
213: ** Same as HTLoadAnchor but any information in the Error Stack in the
214: ** request object is kept, so that any error messages in one
1.52 frystyk 215: ** This function is almost identical to HTLoadAnchor, but it doesn't
216: ** clear the error stack so that the information in there is kept.
1.90 frystyk 217: ** Returns YES if request accepted, else NO
218: */
219: PUBLIC BOOL HTLoadAnchorRecursive (HTAnchor * anchor, HTRequest * request)
220: {
221: if (anchor && request) {
222: HTRequest_setAnchor(request, anchor);
1.124 frystyk 223: return launch_request(request, YES);
1.90 frystyk 224: }
225: return NO;
226: }
227:
1.122 frystyk 228: /*
229: ** Load a URL to a mem buffer
230: ** --------------------------
231: ** Load a request and store the result in a memory buffer.
232: ** Returns chunk if OK - else NULL
233: */
234: PUBLIC HTChunk * HTLoadAnchorToChunk (HTAnchor * anchor, HTRequest * request)
235: {
1.124 frystyk 236: HTChunk * chunk = NULL;
1.122 frystyk 237: if (anchor && request) {
238: HTStream * target = HTStreamToChunk(request, &chunk, 0);
239: HTRequest_setAnchor(request, anchor);
240: HTRequest_setOutputStream(request, target);
1.124 frystyk 241: if (launch_request(request, NO) == YES)
1.122 frystyk 242: return chunk;
243: else {
244: HTChunk_delete(chunk);
245: return NULL;
246: }
247: }
248: return NULL;
249: }
1.90 frystyk 250:
1.123 frystyk 251: /*
252: ** Load a Rule File
253: ** ----------------
254: ** Load a rule find with the URL specified and add the set of rules to
255: ** the existing set.
256: */
257: PUBLIC BOOL HTLoadRules (const char * url)
258: {
259: BOOL status = NO;
260: if (url) {
261: HTList * list = HTList_new();
262: HTRequest * request = HTRequest_new();
263: HTRequest_setPreemptive(request, YES);
1.137 frystyk 264:
265: /*
266: ** We do only accept a new rules files when we are in interactive
267: ** mode and can ask the user for it. If HT_AUTOMATIC_RULES is
268: ** defined then we accept new rules files without explicit ack
269: ** from the user
270: */
271: #ifdef HT_AUTOMATIC_RULES
1.123 frystyk 272: HTAlert_setInteractive(NO);
1.137 frystyk 273: #endif
274:
275: /*
276: ** Add the rules parsing stream for this particular request only.
277: ** That is, we only accept a rules file when we have explicitly
278: ** asked for it using this function.
279: */
1.123 frystyk 280: HTConversion_add(list, "application/x-www-rules", "*/*", HTRules,
281: 1.0, 0.0, 0.0);
282: HTRequest_setConversion(request, list, YES);
283: status = HTLoadAbsolute(url, request);
284: HTConversion_deleteAll(list);
285: HTRequest_delete(request);
286: }
287: return status;
288: }
289:
290: /* --------------------------------------------------------------------------*/
291: /* GET WITH KEYWORDS (SEARCH) */
292: /* --------------------------------------------------------------------------*/
293:
294: /*
295: ** This function creates a URL with a searh part as defined by RFC 1866
296: ** Both the baseurl and the keywords must be escaped.
297: **
298: ** 1. The form field names and values are escaped: space
299: ** characters are replaced by `+', and then reserved characters
300: ** are escaped as per [URL]; that is, non-alphanumeric
301: ** characters are replaced by `%HH', a percent sign and two
302: ** hexadecimal digits representing the ASCII code of the
303: ** character. Line breaks, as in multi-line text field values,
304: ** are represented as CR LF pairs, i.e. `%0D%0A'.
305: **
306: ** 2. The fields are listed in the order they appear in the
307: ** document with the name separated from the value by `=' and
308: ** the pairs separated from each other by `&'. Fields with null
309: ** values may be omitted. In particular, unselected radio
310: ** buttons and checkboxes should not appear in the encoded
311: ** data, but hidden fields with VALUE attributes present
312: ** should.
313: **
314: ** NOTE - The URI from a query form submission can be
315: ** used in a normal anchor style hyperlink.
316: ** Unfortunately, the use of the `&' character to
317: ** separate form fields interacts with its use in SGML
318: ** attribute values as an entity reference delimiter.
319: ** For example, the URI `http://host/?x=1&y=2' must be
320: ** written `<a href="http://host/?x=1&y=2"' or `<a
321: ** href="http://host/?x=1&y=2">'.
322: **
323: ** HTTP server implementors, and in particular, CGI
324: ** implementors are encouraged to support the use of
325: ** `;' in place of `&' to save users the trouble of
326: ** escaping `&' characters this way.
327: */
328: PRIVATE char * query_url_encode (const char * baseurl, HTChunk * keywords)
329: {
330: char * fullurl = NULL;
331: if (baseurl && keywords && HTChunk_size(keywords)) {
332: int len = strlen(baseurl);
333: fullurl = (char *) HT_MALLOC(len + HTChunk_size(keywords) + 2);
334: sprintf(fullurl, "%s?%s", baseurl, HTChunk_data(keywords));
335: {
336: char * ptr = fullurl+len;
337: while (*ptr) {
338: if (*ptr == ' ') *ptr = '+';
339: ptr++;
340: }
341: }
342: }
343: return fullurl;
344: }
345:
346: PRIVATE char * form_url_encode (const char * baseurl, HTAssocList * formdata)
347: {
348: if (formdata) {
349: BOOL first = YES;
350: int cnt = HTList_count((HTList *) formdata);
351: HTChunk * fullurl = HTChunk_new(128);
352: HTAssoc * pres;
1.124 frystyk 353: if (baseurl) {
354: HTChunk_puts(fullurl, baseurl);
355: HTChunk_putc(fullurl, '?');
356: }
1.123 frystyk 357: while (cnt > 0) {
358: pres = (HTAssoc *) HTList_objectAt((HTList *) formdata, --cnt);
359: if (first)
360: first = NO;
361: else
362: HTChunk_putc(fullurl, '&'); /* Could use ';' instead */
363: HTChunk_puts(fullurl, HTAssoc_name(pres));
364: HTChunk_putc(fullurl, '=');
365: HTChunk_puts(fullurl, HTAssoc_value(pres));
366: }
367: return HTChunk_toCString(fullurl);
368: }
369: return NULL;
370: }
371:
372: /* Search a document from absolute name
373: ** ------------------------------------
374: ** Request a document referencd by an absolute URL appended with the
375: ** keywords given. The URL can NOT contain any fragment identifier!
376: ** The list of keywords must be a space-separated list and spaces will
377: ** be converted to '+' before the request is issued.
378: ** Returns YES if request accepted, else NO
379: */
380: PUBLIC BOOL HTSearchAbsolute (HTChunk * keywords,
381: const char * base,
382: HTRequest * request)
383: {
384: if (keywords && base && request) {
385: char * full = query_url_encode(base, keywords);
386: if (full) {
387: HTAnchor * anchor = HTAnchor_findAddress(full);
388: HTRequest_setAnchor(request, anchor);
389: HT_FREE(full);
1.124 frystyk 390: return launch_request(request, NO);
1.123 frystyk 391: }
392: }
393: return NO;
394: }
395:
396: /* Search a document from relative name
397: ** -------------------------------------
398: ** Request a document referenced by a relative URL. The relative URL is
399: ** made absolute by resolving it relative to the address of the 'base'
400: ** anchor.
401: ** Returns YES if request accepted, else NO
402: */
403: PUBLIC BOOL HTSearchRelative (HTChunk * keywords,
404: const char * relative,
405: HTParentAnchor * base,
406: HTRequest * request)
407: {
408: BOOL status = NO;
409: if (keywords && relative && base && request) {
410: char * full_url = NULL;
411: char * base_url = HTAnchor_address((HTAnchor *) base);
412: full_url = HTParse(relative, base_url,
413: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
414: status = HTSearchAbsolute(keywords, full_url, request);
415: HT_FREE(full_url);
416: HT_FREE(base_url);
417: }
418: return status;
419: }
420:
421: /*
422: ** Search a string
423: ** ---------------
424: ** This is the same as HTSearchAbsolute but instead of using a chunk
425: ** you can pass a string.
426: */
427: PUBLIC BOOL HTSearchString (const char * keywords,
428: HTAnchor * anchor,
429: HTRequest * request)
430: {
431: BOOL status = NO;
432: if (keywords && anchor && request) {
433: char * base_url = HTAnchor_address((HTAnchor *) anchor);
434: HTChunk * chunk = HTChunk_new(strlen(keywords)+2);
435: HTChunk_puts(chunk, keywords);
436: status = HTSearchAbsolute(chunk, base_url, request);
437: HT_FREE(base_url);
438: HTChunk_delete(chunk);
439: }
440: return status;
441: }
442:
1.90 frystyk 443: /* Search an Anchor
444: ** ----------------
445: ** Performs a keyword search on word given by the user. Adds the keyword
446: ** to the end of the current address and attempts to open the new address.
447: ** The list of keywords must be a space-separated list and spaces will
448: ** be converted to '+' before the request is issued.
449: ** Search can also be performed by HTLoadAbsolute() etc.
450: ** Returns YES if request accepted, else NO
451: */
1.123 frystyk 452: PUBLIC BOOL HTSearchAnchor (HTChunk * keywords,
453: HTAnchor * anchor,
454: HTRequest * request)
1.90 frystyk 455: {
1.99 frystyk 456: BOOL status = NO;
1.123 frystyk 457: if (keywords && anchor && request) {
458: char * base_url = HTAnchor_address(anchor);
459: status = HTSearchAbsolute(keywords, base_url, request);
1.114 frystyk 460: HT_FREE(base_url);
1.90 frystyk 461: }
1.99 frystyk 462: return status;
1.2 timbl 463: }
464:
1.123 frystyk 465: /* --------------------------------------------------------------------------*/
466: /* HANDLING FORMS USING GET AND POST */
467: /* --------------------------------------------------------------------------*/
1.2 timbl 468:
1.123 frystyk 469: /* Send a Form request using GET from absolute name
470: ** ------------------------------------------------
1.90 frystyk 471: ** Request a document referencd by an absolute URL appended with the
1.123 frystyk 472: ** formdata given. The URL can NOT contain any fragment identifier!
473: ** The list of form data must be given as an association list where
474: ** the name is the field name and the value is the value of the field.
475: ** Returns YES if request accepted, else NO
476: */
477: PUBLIC BOOL HTGetFormAbsolute (HTAssocList * formdata,
478: const char * base,
479: HTRequest * request)
480: {
481: if (formdata && base && request) {
482: char * full = form_url_encode(base, formdata);
483: if (full) {
484: HTAnchor * anchor = HTAnchor_findAddress(full);
485: HTRequest_setAnchor(request, anchor);
486: HT_FREE(full);
1.124 frystyk 487: return launch_request(request, NO);
1.123 frystyk 488: }
489: }
490: return NO;
491: }
492:
493: /* Send a Form request using GET from relative name
494: ** ------------------------------------------------
495: ** Request a document referencd by a relative URL appended with the
496: ** formdata given. The URL can NOT contain any fragment identifier!
497: ** The list of form data must be given as an association list where
498: ** the name is the field name and the value is the value of the field.
499: ** Returns YES if request accepted, else NO
500: */
501: PUBLIC BOOL HTGetFormRelative (HTAssocList * formdata,
502: const char * relative,
503: HTParentAnchor * base,
504: HTRequest * request)
505: {
506: BOOL status = NO;
507: if (formdata && relative && base && request) {
508: char * full_url = NULL;
509: char * base_url = HTAnchor_address((HTAnchor *) base);
510: full_url=HTParse(relative, base_url,
511: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
512: status = HTGetFormAbsolute(formdata, full_url, request);
513: HT_FREE(full_url);
514: HT_FREE(base_url);
515: }
516: return status;
517: }
518:
519: /* Send a Form request using GET from an anchor
520: ** --------------------------------------------
521: ** Request a document referencd by an anchor object appended with the
522: ** formdata given. The URL can NOT contain any fragment identifier!
523: ** The list of form data must be given as an association list where
524: ** the name is the field name and the value is the value of the field.
1.90 frystyk 525: ** Returns YES if request accepted, else NO
526: */
1.123 frystyk 527: PUBLIC BOOL HTGetFormAnchor (HTAssocList * formdata,
528: HTAnchor * anchor,
529: HTRequest * request)
530: {
531: BOOL status = NO;
532: if (formdata && anchor && request) {
533: char * base_url = HTAnchor_address((HTAnchor *) anchor);
534: status = HTGetFormAbsolute(formdata, base_url, request);
535: HT_FREE(base_url);
536: }
537: return status;
538: }
539:
540: PRIVATE int HTEntity_callback (HTRequest * request, HTStream * target)
541: {
542: HTParentAnchor * entity = HTRequest_entityAnchor(request);
1.124 frystyk 543: if (WWWTRACE) HTTrace("Posting Data from callback function\n");
1.123 frystyk 544: if (!request || !entity || !target) return HT_ERROR;
545: {
1.126 frystyk 546: BOOL chunking = NO;
1.123 frystyk 547: int status;
548: char * document = (char *) HTAnchor_document(entity);
549: int len = HTAnchor_length(entity);
1.126 frystyk 550: if (!document) {
551: if (PROT_TRACE) HTTrace("Posting Data No document\n");
552: return HT_ERROR;
553: }
554:
555: /*
556: ** If the length is unknown (-1) then see if the document is a text
557: ** type and in that case take the strlen. If not then we don't know
558: ** how much data we can write and must stop
559: */
560: if (len < 0) {
561: HTFormat actual = HTAnchor_format(entity);
562: HTFormat tmplate = HTAtom_for("text/*");
563: if (HTMIMEMatch(tmplate, actual)) {
564: len = strlen(document); /* Naive! */
565: chunking = YES;
566: } else {
567: if (PROT_TRACE)
568: HTTrace("Posting Data Must know the length of document %p\n",
569: document);
570: return HT_ERROR;
571: }
572: }
573:
574: /* Send the data down the pipe */
1.123 frystyk 575: status = (*target->isa->put_block)(target, document, len);
576: if (status == HT_WOULD_BLOCK) {
1.124 frystyk 577: if (PROT_TRACE)HTTrace("Posting Data Target WOULD BLOCK\n");
1.123 frystyk 578: return HT_WOULD_BLOCK;
579: } else if (status == HT_PAUSE) {
1.126 frystyk 580: if (PROT_TRACE) HTTrace("Posting Data Target PAUSED\n");
1.123 frystyk 581: return HT_PAUSE;
1.126 frystyk 582: } else if (chunking && status == HT_OK) {
583: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED using chunked\n");
584: return (*target->isa->put_block)(target, "", 0);
1.136 frystyk 585: } else if (status == HT_LOADED || status == HT_OK) {
586: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED\n");
587: (*target->isa->flush)(target);
588: return HT_LOADED;
589: } else if (status > 0) { /* Stream specific return code */
590: if (PROT_TRACE) HTTrace("Posting Data. Target returns %d\n", status);
1.123 frystyk 591: return status;
592: } else { /* we have a real error */
1.129 frystyk 593: if (PROT_TRACE) HTTrace("Posting Data Target ERROR %d\n", status);
1.123 frystyk 594: return status;
595: }
596: }
597: }
598:
599: /* Send a Form request using POST from absolute name
600: ** -------------------------------------------------
601: ** Request a document referencd by an absolute URL appended with the
602: ** formdata given. The URL can NOT contain any fragment identifier!
603: ** The list of form data must be given as an association list where
604: ** the name is the field name and the value is the value of the field.
605: */
606: PUBLIC HTParentAnchor * HTPostFormAbsolute (HTAssocList * formdata,
607: const char * base,
608: HTRequest * request)
609: {
610: if (formdata && base && request) {
611: HTAnchor * anchor = HTAnchor_findAddress(base);
612: return HTPostFormAnchor(formdata, anchor, request);
613: }
614: return NULL;
615: }
616:
617: /* Send a Form request using POST from relative name
618: ** -------------------------------------------------
619: ** Request a document referencd by a relative URL appended with the
620: ** formdata given. The URL can NOT contain any fragment identifier!
621: ** The list of form data must be given as an association list where
622: ** the name is the field name and the value is the value of the field.
623: */
624: PUBLIC HTParentAnchor * HTPostFormRelative (HTAssocList * formdata,
625: const char * relative,
626: HTParentAnchor * base,
627: HTRequest * request)
1.90 frystyk 628: {
1.123 frystyk 629: HTParentAnchor * postanchor = NULL;
630: if (formdata && relative && base && request) {
631: char * full_url = NULL;
632: char * base_url = HTAnchor_address((HTAnchor *) base);
633: full_url=HTParse(relative, base_url,
634: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
635: postanchor = HTPostFormAbsolute(formdata, full_url, request);
636: HT_FREE(full_url);
637: HT_FREE(base_url);
638: }
639: return postanchor;
640: }
641:
642: /* Send a Form request using POST from an anchor
643: ** ---------------------------------------------
644: ** Request a document referencd by an anchor object appended with the
645: ** formdata given. The URL can NOT contain any fragment identifier!
646: ** The list of form data must be given as an association list where
647: ** the name is the field name and the value is the value of the field.
648: */
649: PUBLIC HTParentAnchor * HTPostFormAnchor (HTAssocList * formdata,
650: HTAnchor * anchor,
651: HTRequest * request)
652: {
653: HTParentAnchor * postanchor = NULL;
654: if (formdata && anchor && request) {
655: HTUserProfile * up = HTRequest_userProfile(request);
656: char * tmpfile = HTGetTmpFileName(HTUserProfile_tmp(up));
657: char * tmpurl = HTParse(tmpfile, "file:", PARSE_ALL);
658: char * form_encoded = form_url_encode(NULL, formdata);
659: if (form_encoded) {
660:
661: /*
662: ** Now create a new anchor for the post data and set up
663: ** the rest of the metainformation we know about this anchor. The
664: ** tmp anchor may actually already exist from previous postings.
665: */
666: postanchor = (HTParentAnchor *) HTAnchor_findAddress(tmpurl);
667: HTAnchor_clearHeader(postanchor);
668: HTAnchor_setDocument(postanchor, form_encoded);
669: HTAnchor_setLength(postanchor, strlen(form_encoded));
670: HTAnchor_setFormat(postanchor, WWW_FORM);
671:
672: /*
673: ** Bind the temporary anchor to the anchor that will contain the
674: ** response
675: */
676: HTLink_removeAll((HTAnchor *) postanchor);
677: HTLink_add((HTAnchor *) postanchor, (HTAnchor *) anchor,
678: NULL, METHOD_POST);
679:
680: /* Set up the request object */
681: HTRequest_addGnHd(request, HT_G_DATE); /* Send date header */
682: HTRequest_setAnchor(request, anchor);
683: HTRequest_setEntityAnchor(request, postanchor);
684: HTRequest_setMethod(request, METHOD_POST);
685:
686: /* Add the post form callback function to provide the form data */
687: HTRequest_setPostCallback(request, HTEntity_callback);
688:
689: /* Now start the load normally */
1.124 frystyk 690: launch_request(request, NO);
1.123 frystyk 691: }
692: HT_FREE(tmpfile);
693: HT_FREE(tmpurl);
1.90 frystyk 694: }
1.123 frystyk 695: return postanchor;
1.57 howcome 696: }
697:
1.70 frystyk 698: /* --------------------------------------------------------------------------*/
1.124 frystyk 699: /* PUT A DOCUMENT */
700: /* --------------------------------------------------------------------------*/
1.125 frystyk 701: PRIVATE BOOL setup_anchors (HTRequest * request,
1.131 frystyk 702: HTParentAnchor * source, HTParentAnchor * dest,
703: HTMethod method)
1.124 frystyk 704: {
1.131 frystyk 705: if (!(method & (METHOD_PUT | METHOD_POST))) {
706: if (APP_TRACE) HTTrace("Posting..... Bad method\n");
707: return NO;
708: }
709:
1.124 frystyk 710: /*
1.127 frystyk 711: ** Check whether we know if it is possible to PUT to this destination.
712: ** We both check the local set of allowed methods in the anchor and any
713: ** site information that we may have about the location of the origin
714: ** server.
1.124 frystyk 715: */
716: {
1.131 frystyk 717: char * addr = HTAnchor_address((HTAnchor *) source);
718: char * hostname = HTParse(addr, "", PARSE_HOST);
1.142 frystyk 719: #if 0
1.131 frystyk 720: HTHost * host = HTHost_find(hostname);
721: HTMethod public_methods = HTHost_publicMethods(host);
1.134 frystyk 722: HTMethod private_methods = HTAnchor_allow(dest);
1.141 frystyk 723: #endif
1.131 frystyk 724: HT_FREE(hostname);
725: HT_FREE(addr);
1.141 frystyk 726:
727: #if 0
728: /*
729: ** Again, this may be too cautios for normal operations
730: */
1.131 frystyk 731: if (!(method & (private_methods | public_methods))) {
1.124 frystyk 732: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
733: if (prompt) {
734: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_METHOD,
735: NULL, NULL, NULL) != YES)
736: return NO;
737: }
738: }
1.141 frystyk 739: #endif
1.124 frystyk 740: }
741:
742: /*
743: ** Bind the source anchor to the dest anchor that will contain the
744: ** response. If link already exists then ask is we should do it again.
745: ** If so then remove the old link and replace it with a new one.
746: */
747: {
748: HTLink *link = HTLink_find((HTAnchor *) source, (HTAnchor *) dest);
749: if (link && HTLink_method(link) == METHOD_PUT) {
750: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
751: if (prompt) {
752: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_REDO,
753: NULL, NULL, NULL) != YES)
754: return NO;
755: }
756: HTLink_remove((HTAnchor *) source, (HTAnchor *) dest);
757: }
758: HTLink_add((HTAnchor*) source, (HTAnchor*) dest, NULL, METHOD_PUT);
759: }
760: return YES;
761: }
762:
763: /* Send an Anchor using PUT from absolute name
764: ** -------------------------------------------
765: ** Upload a document referenced by an absolute URL appended.
766: ** The URL can NOT contain any fragment identifier!
767: ** The list of form data must be given as an association list where
768: ** the name is the field name and the value is the value of the field.
769: */
770: PUBLIC BOOL HTPutAbsolute (HTParentAnchor * source,
771: const char * destination,
772: HTRequest * request)
773: {
774: if (source && destination && request) {
775: HTAnchor * dest = HTAnchor_findAddress(destination);
776: return HTPutAnchor(source, dest, request);
777: }
778: return NO;
779: }
780:
781: /* Send an Anchor using PUT from relative name
782: ** -------------------------------------------
783: ** Upload a document referenced by a relative URL appended.
784: ** The URL can NOT contain any fragment identifier!
785: ** The list of form data must be given as an association list where
786: ** the name is the field name and the value is the value of the field.
787: */
788: PUBLIC BOOL HTPutRelative (HTParentAnchor * source,
789: const char * relative,
790: HTParentAnchor * destination_base,
791: HTRequest * request)
792: {
793: if (source && relative && destination_base && request) {
794: BOOL status;
795: char * full_url = NULL;
796: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
797: full_url=HTParse(relative, base_url,
798: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
799: status = HTPutAbsolute(source, full_url, request);
800: HT_FREE(full_url);
801: HT_FREE(base_url);
802: return status;
803: }
804: return NO;
805: }
806:
807: /* Send an Anchor using PUT from an anchor
808: ** ---------------------------------------
809: ** Upload a document referenced by an anchor object appended
810: ** The URL can NOT contain any fragment identifier!
811: ** The list of form data must be given as an association list where
812: ** the name is the field name and the value is the value of the field.
813: */
814: PUBLIC BOOL HTPutAnchor (HTParentAnchor * source,
815: HTAnchor * destination,
816: HTRequest * request)
817: {
818: HTParentAnchor * dest = HTAnchor_parent(destination);
819: if (source && dest && request) {
1.131 frystyk 820: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 821:
822: /* Set up the request object */
823: HTRequest_addGnHd(request, HT_G_DATE);
1.144 frystyk 824: if (HTRequest_preconditions(request))
825: HTRequest_addRqHd(request, HT_C_IF_MATCH | HT_C_IF_UNMOD_SINCE);
1.124 frystyk 826: HTRequest_setEntityAnchor(request, source);
827: HTRequest_setMethod(request, METHOD_PUT);
828: HTRequest_setAnchor(request, destination);
829:
830: /* Add the entity callback function to provide the form data */
831: HTRequest_setPostCallback(request, HTEntity_callback);
832:
833: /* Now start the load normally */
834: return launch_request(request, NO);
835: }
836: }
837: return NO;
838: }
839:
1.125 frystyk 840: /* Send an Anchor using POST from absolute name
841: ** -------------------------------------------
842: ** Upload a document referenced by an absolute URL 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 HTPostAbsolute (HTParentAnchor * source,
848: const char * destination,
849: HTRequest * request)
850: {
851: if (source && destination && request) {
852: HTAnchor * dest = HTAnchor_findAddress(destination);
853: return HTPostAnchor(source, dest, request);
854: }
855: return NO;
856: }
857:
858: /* Send an Anchor using POST from relative name
859: ** -------------------------------------------
860: ** Upload a document referenced by a relative URL appended.
861: ** The URL can NOT contain any fragment identifier!
862: ** The list of form data must be given as an association list where
863: ** the name is the field name and the value is the value of the field.
864: */
865: PUBLIC BOOL HTPostRelative (HTParentAnchor * source,
866: const char * relative,
867: HTParentAnchor * destination_base,
868: HTRequest * request)
869: {
870: if (source && relative && destination_base && request) {
871: BOOL status;
872: char * full_url = NULL;
873: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
874: full_url=HTParse(relative, base_url,
875: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
876: status = HTPostAbsolute(source, full_url, request);
877: HT_FREE(full_url);
878: HT_FREE(base_url);
879: return status;
880: }
881: return NO;
882: }
883:
884: /* Send an Anchor using POST from an anchor
885: ** ---------------------------------------
886: ** Upload a document referenced by an anchor object appended
887: ** The URL can NOT contain any fragment identifier!
888: ** The list of form data must be given as an association list where
889: ** the name is the field name and the value is the value of the field.
890: */
891: PUBLIC BOOL HTPostAnchor (HTParentAnchor * source,
892: HTAnchor * destination,
893: HTRequest * request)
894: {
895: HTParentAnchor * dest = HTAnchor_parent(destination);
896: if (source && dest && request) {
1.131 frystyk 897: if (setup_anchors(request, source, dest, METHOD_POST) == YES) {
1.125 frystyk 898:
899: /* Set up the request object */
900: HTRequest_addGnHd(request, HT_G_DATE);
901: HTRequest_setEntityAnchor(request, source);
902: HTRequest_setMethod(request, METHOD_POST);
903: HTRequest_setAnchor(request, destination);
904:
905: /* Add the entity callback function to provide the form data */
906: HTRequest_setPostCallback(request, HTEntity_callback);
907:
908: /* Now start the load normally */
909: return launch_request(request, NO);
910: }
911: }
912: return NO;
913: }
914:
1.124 frystyk 915: /* Send an Anchor using PUT from absolute name
916: ** -------------------------------------------
917: ** Upload a document referenced by an absolute URL appended.
918: ** The URL can NOT contain any fragment identifier!
919: ** The list of form data must be given as an association list where
920: ** the name is the field name and the value is the value of the field.
921: */
922: PUBLIC BOOL HTPutStructuredAbsolute (HTParentAnchor * source,
923: const char * destination,
924: HTRequest * request,
925: HTPostCallback * input)
926: {
927: if (source && destination && request && input) {
928: HTAnchor * dest = HTAnchor_findAddress(destination);
929: return HTPutStructuredAnchor(source, dest, request, input);
930: }
931: return NO;
932: }
933:
934: /* Send an Anchor using PUT from relative name
935: ** -------------------------------------------
936: ** Upload a document referenced by a relative URL appended.
937: ** The URL can NOT contain any fragment identifier!
938: ** The list of form data must be given as an association list where
939: ** the name is the field name and the value is the value of the field.
940: */
941: PUBLIC BOOL HTPutStructuredRelative (HTParentAnchor * source,
942: const char * relative,
943: HTParentAnchor * destination_base,
944: HTRequest * request,
945: HTPostCallback * input)
946: {
947: if (source && relative && destination_base && request && input) {
948: BOOL status;
949: char * full_url = NULL;
950: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
951: full_url=HTParse(relative, base_url,
952: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
953: status = HTPutStructuredAbsolute(source, full_url, request, input);
954: HT_FREE(full_url);
955: HT_FREE(base_url);
956: return status;
957: }
958: return NO;
959: }
960:
961: /* Send an Anchor using PUT from an anchor
962: ** ---------------------------------------
963: ** Upload a document referenced by an anchor object appended
964: ** The URL can NOT contain any fragment identifier!
965: ** The list of form data must be given as an association list where
966: ** the name is the field name and the value is the value of the field.
967: */
968: PUBLIC BOOL HTPutStructuredAnchor (HTParentAnchor * source,
969: HTAnchor * destination,
970: HTRequest * request,
971: HTPostCallback * input)
972: {
973: HTParentAnchor * dest = HTAnchor_parent(destination);
974: if (source && dest && request) {
1.131 frystyk 975: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 976:
977: /* Set up the request object */
978: HTRequest_addGnHd(request, HT_G_DATE);
1.144 frystyk 979: if (HTRequest_preconditions(request))
980: HTRequest_addRqHd(request, HT_C_IF_MATCH | HT_C_IF_UNMOD_SINCE);
1.124 frystyk 981: HTRequest_setEntityAnchor(request, source);
982: HTRequest_setMethod(request, METHOD_PUT);
983: HTRequest_setAnchor(request, destination);
984:
985: /* Add the entity callback function to provide the form data */
986: HTRequest_setPostCallback(request, input);
987:
988: /* Now start the load normally */
989: return launch_request(request, NO);
990: }
991: }
992: return NO;
993: }
994:
995: /*
1.144 frystyk 996: ** After filter for handling PUT of document.
1.124 frystyk 997: */
1.134 frystyk 998: PRIVATE int HTSaveFilter (HTRequest * request, HTResponse * response,
999: void * param, int status)
1.124 frystyk 1000: {
1001: HTPutContext * me = (HTPutContext *) param;
1002: if (APP_TRACE)
1003: HTTrace("Save Filter. Using context %p with state %c\n",
1004: me, me->state+0x30);
1005:
1006: /*
1.125 frystyk 1007: ** Just ignore authentication in the hope that some other filter will
1008: ** handle this.
1009: */
1.138 frystyk 1010: if (status == HT_NO_ACCESS || status == HT_NO_PROXY_ACCESS ||
1011: status == HT_REAUTH || status == HT_PROXY_REAUTH) {
1.125 frystyk 1012: if (APP_TRACE) HTTrace("Save Filter. Waiting for authentication\n");
1013: return HT_OK;
1014: }
1015:
1016: /*
1.124 frystyk 1017: ** If either the source or the destination has moved then ask the user
1018: ** what to do. If there is no user then stop
1019: */
1.138 frystyk 1020: if (status == HT_TEMP_REDIRECT || status == HT_PERM_REDIRECT ||
1021: status == HT_FOUND || status == HT_SEE_OTHER) {
1.124 frystyk 1022: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
1.134 frystyk 1023: HTAnchor * redirection = HTResponse_redirection(response);
1.124 frystyk 1024: if (prompt && redirection) {
1.125 frystyk 1025: if (me->state == HT_LOAD_SOURCE) {
1.124 frystyk 1026: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_SOURCE_MOVED,
1027: NULL, NULL, NULL) == YES) {
1028: me->source = HTAnchor_parent(redirection);
1.128 frystyk 1029: } else {
1030: /*
1031: ** Make sure that the operation stops
1032: */
1033: me->state = HT_ABORT_SAVE;
1.124 frystyk 1034: }
1035: } else {
1.141 frystyk 1036: #if 0
1037: /*
1038: ** If you are very precautios then you can ask here whether
1039: ** we should continue or not in case of a redirection
1040: */
1.124 frystyk 1041: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_DESTINATION_MOVED,
1042: NULL, NULL, NULL) == YES) {
1043: me->destination = redirection;
1.128 frystyk 1044: } else {
1045: /*
1046: ** Make sure that the operation stops
1047: */
1048: me->state = HT_ABORT_SAVE;
1.124 frystyk 1049: }
1.141 frystyk 1050: #else
1051: if (APP_TRACE) HTTrace("Save Filter. Destination hae moved!\n");
1052: me->destination = redirection;
1053: #endif
1.124 frystyk 1054: }
1055: }
1.128 frystyk 1056: return HT_OK;
1.124 frystyk 1057: }
1058:
1059: /*
1.125 frystyk 1060: ** If we succeeded getting the source then start the PUT itself. Otherwise
1061: ** cleanup the mess
1.124 frystyk 1062: */
1.125 frystyk 1063: if (me->state == HT_LOAD_SOURCE && status == HT_LOADED &&
1064: !HTError_hasSeverity(HTRequest_error(request), ERR_INFO)) {
1.124 frystyk 1065:
1066: /* Swap the document in the anchor with the new one */
1067: me->placeholder = HTAnchor_document(me->source);
1068: HTAnchor_setDocument(me->source, HTChunk_data(me->document));
1069:
1070: /* Set up the request object */
1071: HTRequest_addGnHd(request, HT_G_DATE);
1072: HTRequest_setEntityAnchor(request, me->source);
1073: HTRequest_setMethod(request, METHOD_PUT);
1074: HTRequest_setAnchor(request, me->destination);
1075: HTRequest_setOutputFormat(request, me->format);
1076: HTRequest_setOutputStream(request, me->target);
1.144 frystyk 1077:
1078: /*
1079: ** If we are to use preconditions then
1080: ** copy the last modified and etag information from
1081: ** the source to the destination. This is needed in
1082: ** order to avoid the lost update problem
1083: */
1084: if (HTRequest_preconditions(request)) {
1085: time_t src_time = HTAnchor_lastModified(me->source);
1086: char * src_etag = HTAnchor_etag(me->source);
1087: HTAnchor_setLastModified(HTAnchor_parent(me->destination), src_time);
1088: HTAnchor_setEtag(HTAnchor_parent(me->destination), src_etag);
1089: HTRequest_addRqHd(request, HT_C_IF_MATCH | HT_C_IF_UNMOD_SINCE);
1090: }
1.145 ! frystyk 1091:
! 1092: /* Delete existing credentials as they are generated anew */
! 1093: HTRequest_deleteCredentialsAll(request);
1.124 frystyk 1094:
1.139 frystyk 1095: /* Make sure we flush the output immediately */
1096: HTRequest_forceFlush(request);
1097:
1.125 frystyk 1098: /* Turn progress notifications back on */
1099: HTRequest_setInternal(request, NO);
1100:
1.124 frystyk 1101: /* Add the entity callback function to provide the form data */
1102: HTRequest_setPostCallback(request, HTEntity_callback);
1103:
1104: /* Now start the load normally */
1.143 frystyk 1105: if (launch_request(request, NO) == YES)
1106: me->state = HT_SAVE_DEST;
1107: else {
1108: HTAnchor_setDocument(me->source, me->placeholder);
1109: HTChunk_delete(me->document);
1110: HT_FREE(me);
1111: }
1112: #if 0
1.124 frystyk 1113: me->state = launch_request(request, NO) ?
1.125 frystyk 1114: HT_SAVE_DEST : HT_LOAD_SOURCE;
1.143 frystyk 1115: #endif
1.124 frystyk 1116: /*
1117: ** By returning HT_ERROR we make sure that this is the last handler to
1118: ** be called. We do this as we don't want any other filter to delete
1119: ** the request object now when we have just started a new one
1120: ** ourselves
1121: */
1122: return HT_ERROR;
1123:
1124: } else {
1125: HTAnchor_setDocument(me->source, me->placeholder);
1126: HTChunk_delete(me->document);
1127: HT_FREE(me);
1128: }
1129: return HT_OK;
1130: }
1131:
1132: /* Send an Anchor using PUT from absolute name
1133: ** -------------------------------------------
1134: ** Upload a document referenced by an absolute URL appended.
1135: ** The URL can NOT contain any fragment identifier!
1136: ** The list of form data must be given as an association list where
1137: ** the name is the field name and the value is the value of the field.
1138: */
1139: PUBLIC BOOL HTPutDocumentAbsolute (HTParentAnchor * source,
1140: const char * destination,
1141: HTRequest * request)
1142: {
1143: if (source && destination && request) {
1144: HTAnchor * dest = HTAnchor_findAddress(destination);
1145: return HTPutDocumentAnchor(source, dest, request);
1146: }
1147: return NO;
1148: }
1149:
1150: /* Send an Anchor using PUT from relative name
1151: ** -------------------------------------------
1152: ** Upload a document referenced by a relative URL appended.
1153: ** The URL can NOT contain any fragment identifier!
1154: ** The list of form data must be given as an association list where
1155: ** the name is the field name and the value is the value of the field.
1156: */
1157: PUBLIC BOOL HTPutDocumentRelative (HTParentAnchor * source,
1158: const char * relative,
1159: HTParentAnchor * destination_base,
1160: HTRequest * request)
1161: {
1162: if (source && relative && destination_base && request) {
1163: BOOL status;
1164: char * full_url = NULL;
1165: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
1166: full_url=HTParse(relative, base_url,
1167: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1168: status = HTPutDocumentAbsolute(source, full_url, request);
1169: HT_FREE(full_url);
1170: HT_FREE(base_url);
1171: return status;
1172: }
1173: return NO;
1174: }
1175:
1176: /* Send an Anchor using PUT from an anchor
1177: ** ---------------------------------------
1178: ** Upload a document referenced by an anchor object appended
1179: ** The URL can NOT contain any fragment identifier!
1180: ** The source document is first loaded into memory and then the PUT
1181: ** to the remote server is done using the memory version
1182: */
1183: PUBLIC BOOL HTPutDocumentAnchor (HTParentAnchor * source,
1184: HTAnchor * destination,
1185: HTRequest * request)
1186: {
1187: HTParentAnchor * dest = HTAnchor_parent(destination);
1188: if (source && dest && request) {
1.131 frystyk 1189: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 1190: HTPutContext * context = NULL;
1191:
1192: /*
1193: ** First we register an AFTER filter that can check the result
1194: ** of the source load if success then it can start the PUT
1195: ** operation to the destination.
1196: */
1197: if (!(context=(HTPutContext *) HT_CALLOC(1, sizeof(HTPutContext))))
1198: HT_OUTOFMEM("HTPutDocumentAnchor");
1199: context->source = source;
1200: context->destination = destination;
1.134 frystyk 1201:
1202: /*
1203: ** We register the after filter with a NULL template as we
1204: ** don't know the source of the data.
1205: */
1206: HTRequest_addAfter(request, HTSaveFilter, NULL, context, HT_ALL,
1207: HT_FILTER_FIRST, NO);
1.125 frystyk 1208:
1209: /* Turn off progress notifications */
1210: HTRequest_setInternal(request, YES);
1.124 frystyk 1211:
1212: /*
1213: ** We make sure that we are not using a memory cached element.
1214: ** It's OK to use a file cached element!
1215: */
1.133 frystyk 1216: HTRequest_setReloadMode(request, HT_CACHE_FLUSH_MEM);
1.124 frystyk 1217:
1218: /*
1219: ** Now we load the source document into a chunk. We specify that
1220: ** we want the document ASIS from the source location.
1221: */
1222: context->format = HTRequest_outputFormat(request);
1223: context->target = HTRequest_outputStream(request);
1224: HTRequest_setOutputFormat(request, WWW_SOURCE);
1225: context->document = HTLoadAnchorToChunk((HTAnchor*)source,request);
1226: if (context->document == NULL) {
1227: if (APP_TRACE) HTTrace("Put Document No source\n");
1228: HT_FREE(context);
1229: return NO;
1230: }
1231: return YES;
1232: }
1233: }
1234: return NO;
1235: }
1236:
1237: /* ------------------------------------------------------------------------- */
1.70 frystyk 1238:
1.90 frystyk 1239: /* Copy an anchor
1.70 frystyk 1240: ** --------------
1.90 frystyk 1241: ** Fetch the URL (possibly local file URL) and send it using either PUT
1242: ** or POST to the remote destination using HTTP. The caller can decide the
1243: ** exact method used and which HTTP header fields to transmit by setting
1244: ** the user fields in the request structure.
1.92 frystyk 1245: ** If posting to NNTP then we can't dispatch at this level but must pass
1246: ** the source anchor to the news module that then takes all the refs
1247: ** to NNTP and puts into the "newsgroups" header
1.70 frystyk 1248: */
1.109 frystyk 1249: PUBLIC BOOL HTCopyAnchor (HTAnchor * src_anchor, HTRequest * main_dest)
1.80 frystyk 1250: {
1.106 frystyk 1251: HTRequest * src_req;
1252: HTList * cur;
1.109 frystyk 1253: if (!src_anchor || !main_dest) {
1.115 eric 1254: if (WWWTRACE) HTTrace("Copy........ BAD ARGUMENT\n");
1.90 frystyk 1255: return NO;
1.109 frystyk 1256: }
1.70 frystyk 1257:
1.112 frystyk 1258: /* Set the source anchor */
1259: main_dest->source_anchor = HTAnchor_parent(src_anchor);
1260:
1.80 frystyk 1261: /* Build the POST web if not already there */
1.109 frystyk 1262: if (!main_dest->source) {
1263: src_req = HTRequest_dupInternal(main_dest); /* Get a duplicate */
1.80 frystyk 1264: HTAnchor_clearHeader((HTParentAnchor *) src_anchor);
1.109 frystyk 1265: src_req->method = METHOD_GET;
1.133 frystyk 1266: src_req->reload = HT_CACHE_FLUSH_MEM;
1.104 frystyk 1267: src_req->output_stream = NULL;
1.80 frystyk 1268: src_req->output_format = WWW_SOURCE; /* We want source (for now) */
1269:
1270: /* Set up the main link in the source anchor */
1271: {
1.106 frystyk 1272: HTLink * main_link = HTAnchor_mainLink((HTAnchor *) src_anchor);
1273: HTAnchor *main_anchor = HTLink_destination(main_link);
1274: HTMethod method = HTLink_method(main_link);
1.85 frystyk 1275: if (!main_link || method==METHOD_INVALID) {
1.91 frystyk 1276: if (WWWTRACE)
1.115 eric 1277: HTTrace("Copy Anchor. No destination found or unspecified method\n");
1.80 frystyk 1278: HTRequest_delete(src_req);
1.90 frystyk 1279: return NO;
1.80 frystyk 1280: }
1.109 frystyk 1281: main_dest->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1282: main_dest->reload = HT_CACHE_VALIDATE;
1.109 frystyk 1283: main_dest->method = method;
1284: main_dest->input_format = WWW_SOURCE;
1285: HTRequest_addDestination(src_req, main_dest);
1286: if (HTLoadAnchor(main_anchor, main_dest) == NO)
1287: return NO;
1.80 frystyk 1288: }
1.78 frystyk 1289:
1.80 frystyk 1290: /* For all other links in the source anchor */
1.106 frystyk 1291: if ((cur = HTAnchor_subLinks(src_anchor))) {
1292: HTLink * pres;
1.109 frystyk 1293: while ((pres = (HTLink *) HTList_nextObject(cur))) {
1.106 frystyk 1294: HTAnchor *dest = HTLink_destination(pres);
1295: HTMethod method = HTLink_method(pres);
1.80 frystyk 1296: HTRequest *dest_req;
1297: if (!dest || method==METHOD_INVALID) {
1.91 frystyk 1298: if (WWWTRACE)
1.115 eric 1299: HTTrace("Copy Anchor. Bad anchor setup %p\n",
1.80 frystyk 1300: dest);
1.90 frystyk 1301: return NO;
1.80 frystyk 1302: }
1.109 frystyk 1303: dest_req = HTRequest_dupInternal(main_dest);
1.107 frystyk 1304: dest_req->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1305: dest_req->reload = HT_CACHE_VALIDATE;
1.80 frystyk 1306: dest_req->method = method;
1.104 frystyk 1307: dest_req->output_stream = NULL;
1308: dest_req->output_format = WWW_SOURCE;
1.109 frystyk 1309: HTRequest_addDestination(src_req, dest_req);
1.104 frystyk 1310:
1.90 frystyk 1311: if (HTLoadAnchor(dest, dest_req) == NO)
1312: return NO;
1.80 frystyk 1313: }
1314: }
1315: } else { /* Use the existing Post Web and restart it */
1.109 frystyk 1316: src_req = main_dest->source;
1.80 frystyk 1317: if (src_req->mainDestination)
1.124 frystyk 1318: if (launch_request(main_dest, NO) == NO)
1.90 frystyk 1319: return NO;
1.80 frystyk 1320: if (src_req->destinations) {
1.106 frystyk 1321: HTRequest * pres;
1322: cur = HTAnchor_subLinks(src_anchor);
1.80 frystyk 1323: while ((pres = (HTRequest *) HTList_nextObject(cur)) != NULL) {
1.124 frystyk 1324: if (launch_request(pres, NO) == NO)
1.90 frystyk 1325: return NO;
1.80 frystyk 1326: }
1327: }
1.78 frystyk 1328: }
1329:
1.80 frystyk 1330: /* Now open the source */
1331: return HTLoadAnchor(src_anchor, src_req);
1.70 frystyk 1332: }
1333:
1.90 frystyk 1334: /* Upload an Anchor
1.70 frystyk 1335: ** ----------------
1.111 frystyk 1336: ** This function can be used to send data along with a request to a remote
1337: ** server. It can for example be used to POST form data to a remote HTTP
1338: ** server - or it can be used to post a newsletter to a NNTP server. In
1339: ** either case, you pass a callback function which the request calls when
1340: ** the remote destination is ready to accept data. In this callback
1341: ** you get the current request object and a stream into where you can
1342: ** write data. It is very important that you return the value returned
1343: ** by this stream to the Library so that it knows what to do next. The
1344: ** reason is that the outgoing stream might block or an error may
1345: ** occur and in that case the Library must know about it. The source
1346: ** anchor represents the data object in memory and it points to
1347: ** the destination anchor by using the POSTWeb method. The source anchor
1348: ** contains metainformation about the data object in memory and the
1349: ** destination anchor represents the reponse from the remote server.
1.90 frystyk 1350: ** Returns YES if request accepted, else NO
1351: */
1.111 frystyk 1352: PUBLIC BOOL HTUploadAnchor (HTAnchor * source_anchor,
1353: HTRequest * request,
1354: HTPostCallback * callback)
1355: {
1356: HTLink * link = HTAnchor_mainLink((HTAnchor *) source_anchor);
1357: HTAnchor * dest_anchor = HTLink_destination(link);
1358: HTMethod method = HTLink_method(link);
1359: if (!link || method==METHOD_INVALID || !callback) {
1360: if (WWWTRACE)
1.115 eric 1361: HTTrace("Upload...... No destination found or unspecified method\n");
1.90 frystyk 1362: return NO;
1.109 frystyk 1363: }
1.111 frystyk 1364: request->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1365: request->reload = HT_CACHE_VALIDATE;
1.111 frystyk 1366: request->method = method;
1367: request->source_anchor = HTAnchor_parent(source_anchor);
1368: request->PostCallback = callback;
1369: return HTLoadAnchor(dest_anchor, request);
1370: }
1371:
1372: /* POST Callback Handler
1373: ** ---------------------
1374: ** If you do not want to handle the stream interface on your own, you
1375: ** can use this function which writes the source anchor hyperdoc to the
1376: ** target stream for the anchor upload and also handles the return value
1377: ** from the stream. If you don't want to write the source anchor hyperdoc
1378: ** then you can register your own callback function that can get the data
1379: ** you want.
1380: */
1381: PUBLIC int HTUpload_callback (HTRequest * request, HTStream * target)
1382: {
1.115 eric 1383: if (WWWTRACE) HTTrace("Uploading... from callback function\n");
1.111 frystyk 1384: if (!request || !request->source_anchor || !target) return HT_ERROR;
1385: {
1386: int status;
1387: HTParentAnchor * source = request->source_anchor;
1388: char * document = (char *) HTAnchor_document(request->source_anchor);
1389: int len = HTAnchor_length(source);
1390: if (len < 0) {
1391: len = strlen(document);
1392: HTAnchor_setLength(source, len);
1393: }
1394: status = (*target->isa->put_block)(target, document, len);
1395: if (status == HT_OK)
1396: return (*target->isa->flush)(target);
1397: if (status == HT_WOULD_BLOCK) {
1.115 eric 1398: if (PROT_TRACE)HTTrace("POST Anchor. Target WOULD BLOCK\n");
1.111 frystyk 1399: return HT_WOULD_BLOCK;
1400: } else if (status == HT_PAUSE) {
1.115 eric 1401: if (PROT_TRACE) HTTrace("POST Anchor. Target PAUSED\n");
1.111 frystyk 1402: return HT_PAUSE;
1403: } else if (status > 0) { /* Stream specific return code */
1404: if (PROT_TRACE)
1.115 eric 1405: HTTrace("POST Anchor. Target returns %d\n", status);
1.111 frystyk 1406: return status;
1.120 eric 1407: } else { /* we have a real error */
1.115 eric 1408: if (PROT_TRACE) HTTrace("POST Anchor. Target ERROR\n");
1.111 frystyk 1409: return status;
1410: }
1.70 frystyk 1411: }
1.123 frystyk 1412: }
1413:
1414: /* ------------------------------------------------------------------------- */
1415: /* HEAD METHOD */
1416: /* ------------------------------------------------------------------------- */
1417:
1418: /* Request metainformation about a document from absolute name
1419: ** -----------------------------------------------------------
1420: ** Request a document referencd by an absolute URL.
1421: ** Returns YES if request accepted, else NO
1422: */
1423: PUBLIC BOOL HTHeadAbsolute (const char * url, HTRequest * request)
1424: {
1425: if (url && request) {
1426: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1427: return HTHeadAnchor(anchor, request);
1.123 frystyk 1428: }
1429: return NO;
1430: }
1431:
1432: /* Request metainformation about a document from relative name
1433: ** -----------------------------------------------------------
1434: ** Request a document referenced by a relative URL. The relative URL is
1435: ** made absolute by resolving it relative to the address of the 'base'
1436: ** anchor.
1437: ** Returns YES if request accepted, else NO
1438: */
1439: PUBLIC BOOL HTHeadRelative (const char * relative,
1440: HTParentAnchor * base,
1441: HTRequest * request)
1442: {
1443: BOOL status = NO;
1444: if (relative && base && request) {
1445: char * rel = NULL;
1446: char * full_url = NULL;
1447: char * base_url = HTAnchor_address((HTAnchor *) base);
1448: StrAllocCopy(rel, relative);
1449: full_url = HTParse(HTStrip(rel), base_url,
1450: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1451: status = HTHeadAbsolute(full_url, request);
1.123 frystyk 1452: HT_FREE(rel);
1453: HT_FREE(full_url);
1454: HT_FREE(base_url);
1455: }
1456: return status;
1457: }
1458:
1459: /* Request metainformation about an anchor
1460: ** --------------------------------------
1461: ** Request the document referenced by the anchor
1462: ** Returns YES if request accepted, else NO
1463: */
1464: PUBLIC BOOL HTHeadAnchor (HTAnchor * anchor, HTRequest * request)
1465: {
1466: if (anchor && request) {
1467: HTRequest_setAnchor(request, anchor);
1468: HTRequest_setMethod(request, METHOD_HEAD);
1.124 frystyk 1469: return launch_request(request, NO);
1.123 frystyk 1470: }
1471: return NO;
1472: }
1473:
1474: /* ------------------------------------------------------------------------- */
1475: /* DELETE METHOD */
1476: /* ------------------------------------------------------------------------- */
1477:
1478: /* Delete a document on a remote server
1479: ** ------------------------------------
1480: ** Request a document referencd by an absolute URL.
1481: ** Returns YES if request accepted, else NO
1482: */
1483: PUBLIC BOOL HTDeleteAbsolute (const char * url, HTRequest * request)
1484: {
1485: if (url && request) {
1486: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1487: return HTDeleteAnchor(anchor, request);
1.123 frystyk 1488: }
1489: return NO;
1490: }
1491:
1492: /* Request metainformation about a document from relative name
1493: ** -----------------------------------------------------------
1494: ** Request a document referenced by a relative URL. The relative URL is
1495: ** made absolute by resolving it relative to the address of the 'base'
1496: ** anchor.
1497: ** Returns YES if request accepted, else NO
1498: */
1499: PUBLIC BOOL HTDeleteRelative (const char * relative,
1500: HTParentAnchor * base,
1501: HTRequest * request)
1502: {
1503: BOOL status = NO;
1504: if (relative && base && request) {
1505: char * rel = NULL;
1506: char * full_url = NULL;
1507: char * base_url = HTAnchor_address((HTAnchor *) base);
1508: StrAllocCopy(rel, relative);
1509: full_url = HTParse(HTStrip(rel), base_url,
1510: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1511: status = HTDeleteAbsolute(full_url, request);
1.123 frystyk 1512: HT_FREE(rel);
1513: HT_FREE(full_url);
1514: HT_FREE(base_url);
1515: }
1516: return status;
1517: }
1518:
1519: /* Request metainformation about an anchor
1520: ** --------------------------------------
1521: ** Request the document referenced by the anchor
1522: ** Returns YES if request accepted, else NO
1523: */
1524: PUBLIC BOOL HTDeleteAnchor (HTAnchor * anchor, HTRequest * request)
1525: {
1526: if (anchor && request) {
1527: HTRequest_setAnchor(request, anchor);
1528: HTRequest_setMethod(request, METHOD_DELETE);
1.124 frystyk 1529: return launch_request(request, NO);
1530: }
1531: return NO;
1532: }
1533:
1534: /* ------------------------------------------------------------------------- */
1535: /* OPTIONS METHOD */
1536: /* ------------------------------------------------------------------------- */
1537:
1538: /* Options availeble for document from absolute name
1539: ** -------------------------------------------------
1540: ** Request a document referencd by an absolute URL.
1541: ** Returns YES if request accepted, else NO
1542: */
1543: PUBLIC BOOL HTOptionsAbsolute (const char * url, HTRequest * request)
1544: {
1545: if (url && request) {
1546: HTAnchor * anchor = HTAnchor_findAddress(url);
1547: return HTOptionsAnchor(anchor, request);
1548: }
1549: return NO;
1550: }
1551:
1552: /* Options available for document from relative name
1553: ** -------------------------------------------------
1554: ** Request a document referenced by a relative URL. The relative URL is
1555: ** made absolute by resolving it relative to the address of the 'base'
1556: ** anchor.
1557: ** Returns YES if request accepted, else NO
1558: */
1559: PUBLIC BOOL HTOptionsRelative (const char * relative,
1560: HTParentAnchor * base,
1561: HTRequest * request)
1562: {
1563: BOOL status = NO;
1564: if (relative && base && request) {
1565: char * rel = NULL;
1566: char * full_url = NULL;
1567: char * base_url = HTAnchor_address((HTAnchor *) base);
1568: StrAllocCopy(rel, relative);
1569: full_url = HTParse(HTStrip(rel), base_url,
1570: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1571: status = HTOptionsAbsolute(full_url, request);
1572: HT_FREE(rel);
1573: HT_FREE(full_url);
1574: HT_FREE(base_url);
1575: }
1576: return status;
1577: }
1578:
1579: /* Options available for document using Anchor
1580: ** -------------------------------------------
1581: ** Request the document referenced by the anchor
1582: ** Returns YES if request accepted, else NO
1583: */
1584: PUBLIC BOOL HTOptionsAnchor (HTAnchor * anchor, HTRequest * request)
1585: {
1586: if (anchor && request) {
1587: HTRequest_setAnchor(request, anchor);
1588: HTRequest_setMethod(request, METHOD_OPTIONS);
1589: return launch_request(request, NO);
1.123 frystyk 1590: }
1591: return NO;
1.1 timbl 1592: }
1.127 frystyk 1593:
1594: /* ------------------------------------------------------------------------- */
1595: /* TRACE METHOD */
1596: /* ------------------------------------------------------------------------- */
1597:
1598: /* Traces available for document from absolute name
1599: ** ------------------------------------------------
1600: ** Request a document referencd by an absolute URL.
1601: ** Returns YES if request accepted, else NO
1602: */
1603: PUBLIC BOOL HTTraceAbsolute (const char * url, HTRequest * request)
1604: {
1605: if (url && request) {
1606: HTAnchor * anchor = HTAnchor_findAddress(url);
1607: return HTTraceAnchor(anchor, request);
1608: }
1609: return NO;
1610: }
1611:
1612: /* Traces available for document from relative name
1613: ** ------------------------------------------------
1614: ** Request a document referenced by a relative URL. The relative URL is
1615: ** made absolute by resolving it relative to the address of the 'base'
1616: ** anchor.
1617: ** Returns YES if request accepted, else NO
1618: */
1619: PUBLIC BOOL HTTraceRelative (const char * relative,
1620: HTParentAnchor * base,
1621: HTRequest * request)
1622: {
1623: BOOL status = NO;
1624: if (relative && base && request) {
1625: char * rel = NULL;
1626: char * full_url = NULL;
1627: char * base_url = HTAnchor_address((HTAnchor *) base);
1628: StrAllocCopy(rel, relative);
1629: full_url = HTParse(HTStrip(rel), base_url,
1630: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1631: status = HTTraceAbsolute(full_url, request);
1632: HT_FREE(rel);
1633: HT_FREE(full_url);
1634: HT_FREE(base_url);
1635: }
1636: return status;
1637: }
1638:
1639: /* Trace available for document using Anchor
1640: ** -------------------------------------------
1641: ** Request the document referenced by the anchor
1642: ** Returns YES if request accepted, else NO
1643: */
1644: PUBLIC BOOL HTTraceAnchor (HTAnchor * anchor, HTRequest * request)
1645: {
1646: if (anchor && request) {
1647: HTRequest_setAnchor(request, anchor);
1648: HTRequest_setMethod(request, METHOD_TRACE);
1649: return launch_request(request, NO);
1650: }
1651: return NO;
1652: }
1653:
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