Annotation of libwww/Library/src/HTAccess.c, revision 1.147
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.
1.147 ! frystyk 6: ** @(#) $Id: HTAccess.c,v 1.146 1998/07/27 23:53:30 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);
1.147 ! frystyk 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: ** Load a Rule File without asking the user
! 292: ** ----------------------------------------
! 293: ** Load a rule find with the URL specified and add the set of rules to
! 294: ** the existing set. We don't ask the user as she would have to call this
! 295: ** method explicitly anyway.
! 296: */
! 297: PUBLIC BOOL HTLoadRulesAutomatically (const char * url)
! 298: {
! 299: BOOL status = NO;
! 300: if (url) {
! 301: HTList * list = HTList_new();
! 302: HTRequest * request = HTRequest_new();
! 303:
! 304: /*
! 305: ** Stop all other loads and concentrate on this one
! 306: */
! 307: HTRequest_setPreemptive(request, YES);
! 308:
! 309: /*
! 310: ** Add the rules parsing stream for this particular request only.
! 311: */
! 312: HTConversion_add(list, "application/x-www-rules", "*/*",
! 313: HTRules_parseAutomatically,
! 314: 1.0, 0.0, 0.0);
! 315:
1.123 frystyk 316: HTRequest_setConversion(request, list, YES);
317: status = HTLoadAbsolute(url, request);
318: HTConversion_deleteAll(list);
319: HTRequest_delete(request);
320: }
321: return status;
322: }
323:
324: /* --------------------------------------------------------------------------*/
325: /* GET WITH KEYWORDS (SEARCH) */
326: /* --------------------------------------------------------------------------*/
327:
328: /*
329: ** This function creates a URL with a searh part as defined by RFC 1866
330: ** Both the baseurl and the keywords must be escaped.
331: **
332: ** 1. The form field names and values are escaped: space
333: ** characters are replaced by `+', and then reserved characters
334: ** are escaped as per [URL]; that is, non-alphanumeric
335: ** characters are replaced by `%HH', a percent sign and two
336: ** hexadecimal digits representing the ASCII code of the
337: ** character. Line breaks, as in multi-line text field values,
338: ** are represented as CR LF pairs, i.e. `%0D%0A'.
339: **
340: ** 2. The fields are listed in the order they appear in the
341: ** document with the name separated from the value by `=' and
342: ** the pairs separated from each other by `&'. Fields with null
343: ** values may be omitted. In particular, unselected radio
344: ** buttons and checkboxes should not appear in the encoded
345: ** data, but hidden fields with VALUE attributes present
346: ** should.
347: **
348: ** NOTE - The URI from a query form submission can be
349: ** used in a normal anchor style hyperlink.
350: ** Unfortunately, the use of the `&' character to
351: ** separate form fields interacts with its use in SGML
352: ** attribute values as an entity reference delimiter.
353: ** For example, the URI `http://host/?x=1&y=2' must be
354: ** written `<a href="http://host/?x=1&y=2"' or `<a
355: ** href="http://host/?x=1&y=2">'.
356: **
357: ** HTTP server implementors, and in particular, CGI
358: ** implementors are encouraged to support the use of
359: ** `;' in place of `&' to save users the trouble of
360: ** escaping `&' characters this way.
361: */
362: PRIVATE char * query_url_encode (const char * baseurl, HTChunk * keywords)
363: {
364: char * fullurl = NULL;
365: if (baseurl && keywords && HTChunk_size(keywords)) {
366: int len = strlen(baseurl);
367: fullurl = (char *) HT_MALLOC(len + HTChunk_size(keywords) + 2);
368: sprintf(fullurl, "%s?%s", baseurl, HTChunk_data(keywords));
369: {
370: char * ptr = fullurl+len;
371: while (*ptr) {
372: if (*ptr == ' ') *ptr = '+';
373: ptr++;
374: }
375: }
376: }
377: return fullurl;
378: }
379:
380: PRIVATE char * form_url_encode (const char * baseurl, HTAssocList * formdata)
381: {
382: if (formdata) {
383: BOOL first = YES;
384: int cnt = HTList_count((HTList *) formdata);
385: HTChunk * fullurl = HTChunk_new(128);
386: HTAssoc * pres;
1.124 frystyk 387: if (baseurl) {
388: HTChunk_puts(fullurl, baseurl);
389: HTChunk_putc(fullurl, '?');
390: }
1.123 frystyk 391: while (cnt > 0) {
392: pres = (HTAssoc *) HTList_objectAt((HTList *) formdata, --cnt);
393: if (first)
394: first = NO;
395: else
396: HTChunk_putc(fullurl, '&'); /* Could use ';' instead */
397: HTChunk_puts(fullurl, HTAssoc_name(pres));
398: HTChunk_putc(fullurl, '=');
399: HTChunk_puts(fullurl, HTAssoc_value(pres));
400: }
401: return HTChunk_toCString(fullurl);
402: }
403: return NULL;
404: }
405:
406: /* Search a document from absolute name
407: ** ------------------------------------
408: ** Request a document referencd by an absolute URL appended with the
409: ** keywords given. The URL can NOT contain any fragment identifier!
410: ** The list of keywords must be a space-separated list and spaces will
411: ** be converted to '+' before the request is issued.
412: ** Returns YES if request accepted, else NO
413: */
414: PUBLIC BOOL HTSearchAbsolute (HTChunk * keywords,
415: const char * base,
416: HTRequest * request)
417: {
418: if (keywords && base && request) {
419: char * full = query_url_encode(base, keywords);
420: if (full) {
421: HTAnchor * anchor = HTAnchor_findAddress(full);
422: HTRequest_setAnchor(request, anchor);
423: HT_FREE(full);
1.124 frystyk 424: return launch_request(request, NO);
1.123 frystyk 425: }
426: }
427: return NO;
428: }
429:
430: /* Search a document from relative name
431: ** -------------------------------------
432: ** Request a document referenced by a relative URL. The relative URL is
433: ** made absolute by resolving it relative to the address of the 'base'
434: ** anchor.
435: ** Returns YES if request accepted, else NO
436: */
437: PUBLIC BOOL HTSearchRelative (HTChunk * keywords,
438: const char * relative,
439: HTParentAnchor * base,
440: HTRequest * request)
441: {
442: BOOL status = NO;
443: if (keywords && relative && base && request) {
444: char * full_url = NULL;
445: char * base_url = HTAnchor_address((HTAnchor *) base);
446: full_url = HTParse(relative, base_url,
447: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
448: status = HTSearchAbsolute(keywords, full_url, request);
449: HT_FREE(full_url);
450: HT_FREE(base_url);
451: }
452: return status;
453: }
454:
455: /*
456: ** Search a string
457: ** ---------------
458: ** This is the same as HTSearchAbsolute but instead of using a chunk
459: ** you can pass a string.
460: */
461: PUBLIC BOOL HTSearchString (const char * keywords,
462: HTAnchor * anchor,
463: HTRequest * request)
464: {
465: BOOL status = NO;
466: if (keywords && anchor && request) {
467: char * base_url = HTAnchor_address((HTAnchor *) anchor);
468: HTChunk * chunk = HTChunk_new(strlen(keywords)+2);
469: HTChunk_puts(chunk, keywords);
470: status = HTSearchAbsolute(chunk, base_url, request);
471: HT_FREE(base_url);
472: HTChunk_delete(chunk);
473: }
474: return status;
475: }
476:
1.90 frystyk 477: /* Search an Anchor
478: ** ----------------
479: ** Performs a keyword search on word given by the user. Adds the keyword
480: ** to the end of the current address and attempts to open the new address.
481: ** The list of keywords must be a space-separated list and spaces will
482: ** be converted to '+' before the request is issued.
483: ** Search can also be performed by HTLoadAbsolute() etc.
484: ** Returns YES if request accepted, else NO
485: */
1.123 frystyk 486: PUBLIC BOOL HTSearchAnchor (HTChunk * keywords,
487: HTAnchor * anchor,
488: HTRequest * request)
1.90 frystyk 489: {
1.99 frystyk 490: BOOL status = NO;
1.123 frystyk 491: if (keywords && anchor && request) {
492: char * base_url = HTAnchor_address(anchor);
493: status = HTSearchAbsolute(keywords, base_url, request);
1.114 frystyk 494: HT_FREE(base_url);
1.90 frystyk 495: }
1.99 frystyk 496: return status;
1.2 timbl 497: }
498:
1.123 frystyk 499: /* --------------------------------------------------------------------------*/
500: /* HANDLING FORMS USING GET AND POST */
501: /* --------------------------------------------------------------------------*/
1.2 timbl 502:
1.123 frystyk 503: /* Send a Form request using GET from absolute name
504: ** ------------------------------------------------
1.90 frystyk 505: ** Request a document referencd by an absolute URL appended with the
1.123 frystyk 506: ** formdata given. The URL can NOT contain any fragment identifier!
507: ** The list of form data must be given as an association list where
508: ** the name is the field name and the value is the value of the field.
509: ** Returns YES if request accepted, else NO
510: */
511: PUBLIC BOOL HTGetFormAbsolute (HTAssocList * formdata,
512: const char * base,
513: HTRequest * request)
514: {
515: if (formdata && base && request) {
516: char * full = form_url_encode(base, formdata);
517: if (full) {
518: HTAnchor * anchor = HTAnchor_findAddress(full);
519: HTRequest_setAnchor(request, anchor);
520: HT_FREE(full);
1.124 frystyk 521: return launch_request(request, NO);
1.123 frystyk 522: }
523: }
524: return NO;
525: }
526:
527: /* Send a Form request using GET from relative name
528: ** ------------------------------------------------
529: ** Request a document referencd by a relative URL appended with the
530: ** formdata given. The URL can NOT contain any fragment identifier!
531: ** The list of form data must be given as an association list where
532: ** the name is the field name and the value is the value of the field.
533: ** Returns YES if request accepted, else NO
534: */
535: PUBLIC BOOL HTGetFormRelative (HTAssocList * formdata,
536: const char * relative,
537: HTParentAnchor * base,
538: HTRequest * request)
539: {
540: BOOL status = NO;
541: if (formdata && relative && base && request) {
542: char * full_url = NULL;
543: char * base_url = HTAnchor_address((HTAnchor *) base);
544: full_url=HTParse(relative, base_url,
545: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
546: status = HTGetFormAbsolute(formdata, full_url, request);
547: HT_FREE(full_url);
548: HT_FREE(base_url);
549: }
550: return status;
551: }
552:
553: /* Send a Form request using GET from an anchor
554: ** --------------------------------------------
555: ** Request a document referencd by an anchor object appended with the
556: ** formdata given. The URL can NOT contain any fragment identifier!
557: ** The list of form data must be given as an association list where
558: ** the name is the field name and the value is the value of the field.
1.90 frystyk 559: ** Returns YES if request accepted, else NO
560: */
1.123 frystyk 561: PUBLIC BOOL HTGetFormAnchor (HTAssocList * formdata,
562: HTAnchor * anchor,
563: HTRequest * request)
564: {
565: BOOL status = NO;
566: if (formdata && anchor && request) {
567: char * base_url = HTAnchor_address((HTAnchor *) anchor);
568: status = HTGetFormAbsolute(formdata, base_url, request);
569: HT_FREE(base_url);
570: }
571: return status;
572: }
573:
574: PRIVATE int HTEntity_callback (HTRequest * request, HTStream * target)
575: {
576: HTParentAnchor * entity = HTRequest_entityAnchor(request);
1.124 frystyk 577: if (WWWTRACE) HTTrace("Posting Data from callback function\n");
1.123 frystyk 578: if (!request || !entity || !target) return HT_ERROR;
579: {
1.126 frystyk 580: BOOL chunking = NO;
1.123 frystyk 581: int status;
582: char * document = (char *) HTAnchor_document(entity);
583: int len = HTAnchor_length(entity);
1.126 frystyk 584: if (!document) {
585: if (PROT_TRACE) HTTrace("Posting Data No document\n");
586: return HT_ERROR;
587: }
588:
589: /*
590: ** If the length is unknown (-1) then see if the document is a text
591: ** type and in that case take the strlen. If not then we don't know
592: ** how much data we can write and must stop
593: */
594: if (len < 0) {
595: HTFormat actual = HTAnchor_format(entity);
596: HTFormat tmplate = HTAtom_for("text/*");
597: if (HTMIMEMatch(tmplate, actual)) {
598: len = strlen(document); /* Naive! */
599: chunking = YES;
600: } else {
601: if (PROT_TRACE)
602: HTTrace("Posting Data Must know the length of document %p\n",
603: document);
604: return HT_ERROR;
605: }
606: }
607:
608: /* Send the data down the pipe */
1.123 frystyk 609: status = (*target->isa->put_block)(target, document, len);
610: if (status == HT_WOULD_BLOCK) {
1.124 frystyk 611: if (PROT_TRACE)HTTrace("Posting Data Target WOULD BLOCK\n");
1.123 frystyk 612: return HT_WOULD_BLOCK;
613: } else if (status == HT_PAUSE) {
1.126 frystyk 614: if (PROT_TRACE) HTTrace("Posting Data Target PAUSED\n");
1.123 frystyk 615: return HT_PAUSE;
1.126 frystyk 616: } else if (chunking && status == HT_OK) {
617: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED using chunked\n");
618: return (*target->isa->put_block)(target, "", 0);
1.136 frystyk 619: } else if (status == HT_LOADED || status == HT_OK) {
620: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED\n");
621: (*target->isa->flush)(target);
622: return HT_LOADED;
623: } else if (status > 0) { /* Stream specific return code */
624: if (PROT_TRACE) HTTrace("Posting Data. Target returns %d\n", status);
1.123 frystyk 625: return status;
626: } else { /* we have a real error */
1.129 frystyk 627: if (PROT_TRACE) HTTrace("Posting Data Target ERROR %d\n", status);
1.123 frystyk 628: return status;
629: }
630: }
631: }
632:
633: /* Send a Form request using POST from absolute name
634: ** -------------------------------------------------
635: ** Request a document referencd by an absolute URL appended with the
636: ** formdata given. The URL can NOT contain any fragment identifier!
637: ** The list of form data must be given as an association list where
638: ** the name is the field name and the value is the value of the field.
639: */
640: PUBLIC HTParentAnchor * HTPostFormAbsolute (HTAssocList * formdata,
641: const char * base,
642: HTRequest * request)
643: {
644: if (formdata && base && request) {
645: HTAnchor * anchor = HTAnchor_findAddress(base);
646: return HTPostFormAnchor(formdata, anchor, request);
647: }
648: return NULL;
649: }
650:
651: /* Send a Form request using POST from relative name
652: ** -------------------------------------------------
653: ** Request a document referencd by a relative URL appended with the
654: ** formdata given. The URL can NOT contain any fragment identifier!
655: ** The list of form data must be given as an association list where
656: ** the name is the field name and the value is the value of the field.
657: */
658: PUBLIC HTParentAnchor * HTPostFormRelative (HTAssocList * formdata,
659: const char * relative,
660: HTParentAnchor * base,
661: HTRequest * request)
1.90 frystyk 662: {
1.123 frystyk 663: HTParentAnchor * postanchor = NULL;
664: if (formdata && relative && base && request) {
665: char * full_url = NULL;
666: char * base_url = HTAnchor_address((HTAnchor *) base);
667: full_url=HTParse(relative, base_url,
668: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
669: postanchor = HTPostFormAbsolute(formdata, full_url, request);
670: HT_FREE(full_url);
671: HT_FREE(base_url);
672: }
673: return postanchor;
674: }
675:
676: /* Send a Form request using POST from an anchor
677: ** ---------------------------------------------
678: ** Request a document referencd by an anchor object appended with the
679: ** formdata given. The URL can NOT contain any fragment identifier!
680: ** The list of form data must be given as an association list where
681: ** the name is the field name and the value is the value of the field.
682: */
683: PUBLIC HTParentAnchor * HTPostFormAnchor (HTAssocList * formdata,
684: HTAnchor * anchor,
685: HTRequest * request)
686: {
687: HTParentAnchor * postanchor = NULL;
688: if (formdata && anchor && request) {
689: HTUserProfile * up = HTRequest_userProfile(request);
690: char * tmpfile = HTGetTmpFileName(HTUserProfile_tmp(up));
691: char * tmpurl = HTParse(tmpfile, "file:", PARSE_ALL);
692: char * form_encoded = form_url_encode(NULL, formdata);
693: if (form_encoded) {
694:
695: /*
696: ** Now create a new anchor for the post data and set up
697: ** the rest of the metainformation we know about this anchor. The
698: ** tmp anchor may actually already exist from previous postings.
699: */
700: postanchor = (HTParentAnchor *) HTAnchor_findAddress(tmpurl);
701: HTAnchor_clearHeader(postanchor);
702: HTAnchor_setDocument(postanchor, form_encoded);
703: HTAnchor_setLength(postanchor, strlen(form_encoded));
704: HTAnchor_setFormat(postanchor, WWW_FORM);
705:
706: /*
707: ** Bind the temporary anchor to the anchor that will contain the
708: ** response
709: */
710: HTLink_removeAll((HTAnchor *) postanchor);
711: HTLink_add((HTAnchor *) postanchor, (HTAnchor *) anchor,
712: NULL, METHOD_POST);
713:
714: /* Set up the request object */
715: HTRequest_addGnHd(request, HT_G_DATE); /* Send date header */
716: HTRequest_setAnchor(request, anchor);
717: HTRequest_setEntityAnchor(request, postanchor);
718: HTRequest_setMethod(request, METHOD_POST);
719:
720: /* Add the post form callback function to provide the form data */
721: HTRequest_setPostCallback(request, HTEntity_callback);
722:
723: /* Now start the load normally */
1.124 frystyk 724: launch_request(request, NO);
1.123 frystyk 725: }
726: HT_FREE(tmpfile);
727: HT_FREE(tmpurl);
1.90 frystyk 728: }
1.123 frystyk 729: return postanchor;
1.57 howcome 730: }
1.146 frystyk 731:
732: /*
733: ** POST a URL and save the response in a mem buffer
734: ** ------------------------------------------------
735: ** Returns chunk if OK - else NULL
736: */
737: PUBLIC HTChunk * HTPostFormAnchorToChunk (HTAssocList * formdata,
738: HTAnchor * anchor,
739: HTRequest * request)
740: {
741: if (formdata && anchor && request) {
742: HTChunk * chunk = NULL;
743: HTStream * target = HTStreamToChunk(request, &chunk, 0);
744: HTRequest_setOutputStream(request, target);
745: if (HTPostFormAnchor(formdata, anchor, request) != NULL)
746: return chunk;
747: else {
748: HTChunk_delete(chunk);
749: return NULL;
750: }
751: }
752: return NULL;
753: }
754:
1.57 howcome 755:
1.70 frystyk 756: /* --------------------------------------------------------------------------*/
1.124 frystyk 757: /* PUT A DOCUMENT */
758: /* --------------------------------------------------------------------------*/
1.125 frystyk 759: PRIVATE BOOL setup_anchors (HTRequest * request,
1.131 frystyk 760: HTParentAnchor * source, HTParentAnchor * dest,
761: HTMethod method)
1.124 frystyk 762: {
1.131 frystyk 763: if (!(method & (METHOD_PUT | METHOD_POST))) {
764: if (APP_TRACE) HTTrace("Posting..... Bad method\n");
765: return NO;
766: }
767:
1.124 frystyk 768: /*
1.127 frystyk 769: ** Check whether we know if it is possible to PUT to this destination.
770: ** We both check the local set of allowed methods in the anchor and any
771: ** site information that we may have about the location of the origin
772: ** server.
1.124 frystyk 773: */
774: {
1.131 frystyk 775: char * addr = HTAnchor_address((HTAnchor *) source);
776: char * hostname = HTParse(addr, "", PARSE_HOST);
1.142 frystyk 777: #if 0
1.131 frystyk 778: HTHost * host = HTHost_find(hostname);
779: HTMethod public_methods = HTHost_publicMethods(host);
1.134 frystyk 780: HTMethod private_methods = HTAnchor_allow(dest);
1.141 frystyk 781: #endif
1.131 frystyk 782: HT_FREE(hostname);
783: HT_FREE(addr);
1.141 frystyk 784:
785: #if 0
786: /*
787: ** Again, this may be too cautios for normal operations
788: */
1.131 frystyk 789: if (!(method & (private_methods | public_methods))) {
1.124 frystyk 790: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
791: if (prompt) {
792: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_METHOD,
793: NULL, NULL, NULL) != YES)
794: return NO;
795: }
796: }
1.141 frystyk 797: #endif
1.124 frystyk 798: }
799:
800: /*
801: ** Bind the source anchor to the dest anchor that will contain the
802: ** response. If link already exists then ask is we should do it again.
803: ** If so then remove the old link and replace it with a new one.
804: */
805: {
806: HTLink *link = HTLink_find((HTAnchor *) source, (HTAnchor *) dest);
807: if (link && HTLink_method(link) == METHOD_PUT) {
808: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
809: if (prompt) {
810: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_REDO,
811: NULL, NULL, NULL) != YES)
812: return NO;
813: }
814: HTLink_remove((HTAnchor *) source, (HTAnchor *) dest);
815: }
816: HTLink_add((HTAnchor*) source, (HTAnchor*) dest, NULL, METHOD_PUT);
817: }
818: return YES;
819: }
820:
821: /* Send an Anchor using PUT from absolute name
822: ** -------------------------------------------
823: ** Upload a document referenced by an absolute URL appended.
824: ** The URL can NOT contain any fragment identifier!
825: ** The list of form data must be given as an association list where
826: ** the name is the field name and the value is the value of the field.
827: */
828: PUBLIC BOOL HTPutAbsolute (HTParentAnchor * source,
829: const char * destination,
830: HTRequest * request)
831: {
832: if (source && destination && request) {
833: HTAnchor * dest = HTAnchor_findAddress(destination);
834: return HTPutAnchor(source, dest, request);
835: }
836: return NO;
837: }
838:
839: /* Send an Anchor using PUT from relative name
840: ** -------------------------------------------
841: ** Upload a document referenced by a relative URL appended.
842: ** The URL can NOT contain any fragment identifier!
843: ** The list of form data must be given as an association list where
844: ** the name is the field name and the value is the value of the field.
845: */
846: PUBLIC BOOL HTPutRelative (HTParentAnchor * source,
847: const char * relative,
848: HTParentAnchor * destination_base,
849: HTRequest * request)
850: {
851: if (source && relative && destination_base && request) {
852: BOOL status;
853: char * full_url = NULL;
854: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
855: full_url=HTParse(relative, base_url,
856: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
857: status = HTPutAbsolute(source, full_url, request);
858: HT_FREE(full_url);
859: HT_FREE(base_url);
860: return status;
861: }
862: return NO;
863: }
864:
865: /* Send an Anchor using PUT from an anchor
866: ** ---------------------------------------
867: ** Upload a document referenced by an anchor object appended
868: ** The URL can NOT contain any fragment identifier!
869: ** The list of form data must be given as an association list where
870: ** the name is the field name and the value is the value of the field.
871: */
872: PUBLIC BOOL HTPutAnchor (HTParentAnchor * source,
873: HTAnchor * destination,
874: HTRequest * request)
875: {
876: HTParentAnchor * dest = HTAnchor_parent(destination);
877: if (source && dest && request) {
1.131 frystyk 878: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 879:
880: /* Set up the request object */
881: HTRequest_addGnHd(request, HT_G_DATE);
1.144 frystyk 882: if (HTRequest_preconditions(request))
883: HTRequest_addRqHd(request, HT_C_IF_MATCH | HT_C_IF_UNMOD_SINCE);
1.124 frystyk 884: HTRequest_setEntityAnchor(request, source);
885: HTRequest_setMethod(request, METHOD_PUT);
886: HTRequest_setAnchor(request, destination);
887:
888: /* Add the entity callback function to provide the form data */
889: HTRequest_setPostCallback(request, HTEntity_callback);
890:
891: /* Now start the load normally */
892: return launch_request(request, NO);
893: }
894: }
895: return NO;
896: }
897:
1.125 frystyk 898: /* Send an Anchor using POST from absolute name
899: ** -------------------------------------------
900: ** Upload a document referenced by an absolute URL appended.
901: ** The URL can NOT contain any fragment identifier!
902: ** The list of form data must be given as an association list where
903: ** the name is the field name and the value is the value of the field.
904: */
905: PUBLIC BOOL HTPostAbsolute (HTParentAnchor * source,
906: const char * destination,
907: HTRequest * request)
908: {
909: if (source && destination && request) {
910: HTAnchor * dest = HTAnchor_findAddress(destination);
911: return HTPostAnchor(source, dest, request);
912: }
913: return NO;
914: }
915:
916: /* Send an Anchor using POST from relative name
917: ** -------------------------------------------
918: ** Upload a document referenced by a relative URL appended.
919: ** The URL can NOT contain any fragment identifier!
920: ** The list of form data must be given as an association list where
921: ** the name is the field name and the value is the value of the field.
922: */
923: PUBLIC BOOL HTPostRelative (HTParentAnchor * source,
924: const char * relative,
925: HTParentAnchor * destination_base,
926: HTRequest * request)
927: {
928: if (source && relative && destination_base && request) {
929: BOOL status;
930: char * full_url = NULL;
931: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
932: full_url=HTParse(relative, base_url,
933: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
934: status = HTPostAbsolute(source, full_url, request);
935: HT_FREE(full_url);
936: HT_FREE(base_url);
937: return status;
938: }
939: return NO;
940: }
941:
942: /* Send an Anchor using POST from an anchor
943: ** ---------------------------------------
944: ** Upload a document referenced by an anchor object appended
945: ** The URL can NOT contain any fragment identifier!
946: ** The list of form data must be given as an association list where
947: ** the name is the field name and the value is the value of the field.
948: */
949: PUBLIC BOOL HTPostAnchor (HTParentAnchor * source,
950: HTAnchor * destination,
951: HTRequest * request)
952: {
953: HTParentAnchor * dest = HTAnchor_parent(destination);
954: if (source && dest && request) {
1.131 frystyk 955: if (setup_anchors(request, source, dest, METHOD_POST) == YES) {
1.125 frystyk 956:
957: /* Set up the request object */
958: HTRequest_addGnHd(request, HT_G_DATE);
959: HTRequest_setEntityAnchor(request, source);
960: HTRequest_setMethod(request, METHOD_POST);
961: HTRequest_setAnchor(request, destination);
962:
963: /* Add the entity callback function to provide the form data */
964: HTRequest_setPostCallback(request, HTEntity_callback);
965:
966: /* Now start the load normally */
967: return launch_request(request, NO);
968: }
969: }
970: return NO;
971: }
972:
1.124 frystyk 973: /* Send an Anchor using PUT from absolute name
974: ** -------------------------------------------
975: ** Upload a document referenced by an absolute URL appended.
976: ** The URL can NOT contain any fragment identifier!
977: ** The list of form data must be given as an association list where
978: ** the name is the field name and the value is the value of the field.
979: */
980: PUBLIC BOOL HTPutStructuredAbsolute (HTParentAnchor * source,
981: const char * destination,
982: HTRequest * request,
983: HTPostCallback * input)
984: {
985: if (source && destination && request && input) {
986: HTAnchor * dest = HTAnchor_findAddress(destination);
987: return HTPutStructuredAnchor(source, dest, request, input);
988: }
989: return NO;
990: }
991:
992: /* Send an Anchor using PUT from relative name
993: ** -------------------------------------------
994: ** Upload a document referenced by a relative URL appended.
995: ** The URL can NOT contain any fragment identifier!
996: ** The list of form data must be given as an association list where
997: ** the name is the field name and the value is the value of the field.
998: */
999: PUBLIC BOOL HTPutStructuredRelative (HTParentAnchor * source,
1000: const char * relative,
1001: HTParentAnchor * destination_base,
1002: HTRequest * request,
1003: HTPostCallback * input)
1004: {
1005: if (source && relative && destination_base && request && input) {
1006: BOOL status;
1007: char * full_url = NULL;
1008: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
1009: full_url=HTParse(relative, base_url,
1010: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1011: status = HTPutStructuredAbsolute(source, full_url, request, input);
1012: HT_FREE(full_url);
1013: HT_FREE(base_url);
1014: return status;
1015: }
1016: return NO;
1017: }
1018:
1019: /* Send an Anchor using PUT from an anchor
1020: ** ---------------------------------------
1021: ** Upload a document referenced by an anchor object appended
1022: ** The URL can NOT contain any fragment identifier!
1023: ** The list of form data must be given as an association list where
1024: ** the name is the field name and the value is the value of the field.
1025: */
1026: PUBLIC BOOL HTPutStructuredAnchor (HTParentAnchor * source,
1027: HTAnchor * destination,
1028: HTRequest * request,
1029: HTPostCallback * input)
1030: {
1031: HTParentAnchor * dest = HTAnchor_parent(destination);
1032: if (source && dest && request) {
1.131 frystyk 1033: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 1034:
1035: /* Set up the request object */
1036: HTRequest_addGnHd(request, HT_G_DATE);
1.144 frystyk 1037: if (HTRequest_preconditions(request))
1038: HTRequest_addRqHd(request, HT_C_IF_MATCH | HT_C_IF_UNMOD_SINCE);
1.124 frystyk 1039: HTRequest_setEntityAnchor(request, source);
1040: HTRequest_setMethod(request, METHOD_PUT);
1041: HTRequest_setAnchor(request, destination);
1042:
1043: /* Add the entity callback function to provide the form data */
1044: HTRequest_setPostCallback(request, input);
1045:
1046: /* Now start the load normally */
1047: return launch_request(request, NO);
1048: }
1049: }
1050: return NO;
1051: }
1052:
1053: /*
1.144 frystyk 1054: ** After filter for handling PUT of document.
1.124 frystyk 1055: */
1.134 frystyk 1056: PRIVATE int HTSaveFilter (HTRequest * request, HTResponse * response,
1057: void * param, int status)
1.124 frystyk 1058: {
1059: HTPutContext * me = (HTPutContext *) param;
1060: if (APP_TRACE)
1061: HTTrace("Save Filter. Using context %p with state %c\n",
1062: me, me->state+0x30);
1063:
1064: /*
1.125 frystyk 1065: ** Just ignore authentication in the hope that some other filter will
1066: ** handle this.
1067: */
1.138 frystyk 1068: if (status == HT_NO_ACCESS || status == HT_NO_PROXY_ACCESS ||
1069: status == HT_REAUTH || status == HT_PROXY_REAUTH) {
1.125 frystyk 1070: if (APP_TRACE) HTTrace("Save Filter. Waiting for authentication\n");
1071: return HT_OK;
1072: }
1073:
1074: /*
1.124 frystyk 1075: ** If either the source or the destination has moved then ask the user
1076: ** what to do. If there is no user then stop
1077: */
1.138 frystyk 1078: if (status == HT_TEMP_REDIRECT || status == HT_PERM_REDIRECT ||
1079: status == HT_FOUND || status == HT_SEE_OTHER) {
1.124 frystyk 1080: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
1.134 frystyk 1081: HTAnchor * redirection = HTResponse_redirection(response);
1.124 frystyk 1082: if (prompt && redirection) {
1.125 frystyk 1083: if (me->state == HT_LOAD_SOURCE) {
1.124 frystyk 1084: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_SOURCE_MOVED,
1085: NULL, NULL, NULL) == YES) {
1086: me->source = HTAnchor_parent(redirection);
1.128 frystyk 1087: } else {
1088: /*
1089: ** Make sure that the operation stops
1090: */
1091: me->state = HT_ABORT_SAVE;
1.124 frystyk 1092: }
1093: } else {
1.141 frystyk 1094: #if 0
1095: /*
1096: ** If you are very precautios then you can ask here whether
1097: ** we should continue or not in case of a redirection
1098: */
1.124 frystyk 1099: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_DESTINATION_MOVED,
1100: NULL, NULL, NULL) == YES) {
1101: me->destination = redirection;
1.128 frystyk 1102: } else {
1103: /*
1104: ** Make sure that the operation stops
1105: */
1106: me->state = HT_ABORT_SAVE;
1.124 frystyk 1107: }
1.141 frystyk 1108: #else
1109: if (APP_TRACE) HTTrace("Save Filter. Destination hae moved!\n");
1110: me->destination = redirection;
1111: #endif
1.124 frystyk 1112: }
1113: }
1.128 frystyk 1114: return HT_OK;
1.124 frystyk 1115: }
1116:
1117: /*
1.125 frystyk 1118: ** If we succeeded getting the source then start the PUT itself. Otherwise
1119: ** cleanup the mess
1.124 frystyk 1120: */
1.125 frystyk 1121: if (me->state == HT_LOAD_SOURCE && status == HT_LOADED &&
1122: !HTError_hasSeverity(HTRequest_error(request), ERR_INFO)) {
1.124 frystyk 1123:
1124: /* Swap the document in the anchor with the new one */
1125: me->placeholder = HTAnchor_document(me->source);
1126: HTAnchor_setDocument(me->source, HTChunk_data(me->document));
1127:
1128: /* Set up the request object */
1129: HTRequest_addGnHd(request, HT_G_DATE);
1130: HTRequest_setEntityAnchor(request, me->source);
1131: HTRequest_setMethod(request, METHOD_PUT);
1132: HTRequest_setAnchor(request, me->destination);
1133: HTRequest_setOutputFormat(request, me->format);
1134: HTRequest_setOutputStream(request, me->target);
1.144 frystyk 1135:
1136: /*
1137: ** If we are to use preconditions then
1138: ** copy the last modified and etag information from
1139: ** the source to the destination. This is needed in
1140: ** order to avoid the lost update problem
1141: */
1142: if (HTRequest_preconditions(request)) {
1143: time_t src_time = HTAnchor_lastModified(me->source);
1144: char * src_etag = HTAnchor_etag(me->source);
1145: HTAnchor_setLastModified(HTAnchor_parent(me->destination), src_time);
1146: HTAnchor_setEtag(HTAnchor_parent(me->destination), src_etag);
1147: HTRequest_addRqHd(request, HT_C_IF_MATCH | HT_C_IF_UNMOD_SINCE);
1148: }
1.145 frystyk 1149:
1150: /* Delete existing credentials as they are generated anew */
1151: HTRequest_deleteCredentialsAll(request);
1.124 frystyk 1152:
1.139 frystyk 1153: /* Make sure we flush the output immediately */
1154: HTRequest_forceFlush(request);
1155:
1.125 frystyk 1156: /* Turn progress notifications back on */
1157: HTRequest_setInternal(request, NO);
1158:
1.124 frystyk 1159: /* Add the entity callback function to provide the form data */
1160: HTRequest_setPostCallback(request, HTEntity_callback);
1161:
1162: /* Now start the load normally */
1.143 frystyk 1163: if (launch_request(request, NO) == YES)
1164: me->state = HT_SAVE_DEST;
1165: else {
1166: HTAnchor_setDocument(me->source, me->placeholder);
1167: HTChunk_delete(me->document);
1168: HT_FREE(me);
1169: }
1170: #if 0
1.124 frystyk 1171: me->state = launch_request(request, NO) ?
1.125 frystyk 1172: HT_SAVE_DEST : HT_LOAD_SOURCE;
1.143 frystyk 1173: #endif
1.124 frystyk 1174: /*
1175: ** By returning HT_ERROR we make sure that this is the last handler to
1176: ** be called. We do this as we don't want any other filter to delete
1177: ** the request object now when we have just started a new one
1178: ** ourselves
1179: */
1180: return HT_ERROR;
1181:
1182: } else {
1183: HTAnchor_setDocument(me->source, me->placeholder);
1184: HTChunk_delete(me->document);
1185: HT_FREE(me);
1186: }
1187: return HT_OK;
1188: }
1189:
1190: /* Send an Anchor using PUT from absolute name
1191: ** -------------------------------------------
1192: ** Upload a document referenced by an absolute URL appended.
1193: ** The URL can NOT contain any fragment identifier!
1194: ** The list of form data must be given as an association list where
1195: ** the name is the field name and the value is the value of the field.
1196: */
1197: PUBLIC BOOL HTPutDocumentAbsolute (HTParentAnchor * source,
1198: const char * destination,
1199: HTRequest * request)
1200: {
1201: if (source && destination && request) {
1202: HTAnchor * dest = HTAnchor_findAddress(destination);
1203: return HTPutDocumentAnchor(source, dest, request);
1204: }
1205: return NO;
1206: }
1207:
1208: /* Send an Anchor using PUT from relative name
1209: ** -------------------------------------------
1210: ** Upload a document referenced by a relative URL appended.
1211: ** The URL can NOT contain any fragment identifier!
1212: ** The list of form data must be given as an association list where
1213: ** the name is the field name and the value is the value of the field.
1214: */
1215: PUBLIC BOOL HTPutDocumentRelative (HTParentAnchor * source,
1216: const char * relative,
1217: HTParentAnchor * destination_base,
1218: HTRequest * request)
1219: {
1220: if (source && relative && destination_base && request) {
1221: BOOL status;
1222: char * full_url = NULL;
1223: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
1224: full_url=HTParse(relative, base_url,
1225: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1226: status = HTPutDocumentAbsolute(source, full_url, request);
1227: HT_FREE(full_url);
1228: HT_FREE(base_url);
1229: return status;
1230: }
1231: return NO;
1232: }
1233:
1234: /* Send an Anchor using PUT from an anchor
1235: ** ---------------------------------------
1236: ** Upload a document referenced by an anchor object appended
1237: ** The URL can NOT contain any fragment identifier!
1238: ** The source document is first loaded into memory and then the PUT
1239: ** to the remote server is done using the memory version
1240: */
1241: PUBLIC BOOL HTPutDocumentAnchor (HTParentAnchor * source,
1242: HTAnchor * destination,
1243: HTRequest * request)
1244: {
1245: HTParentAnchor * dest = HTAnchor_parent(destination);
1246: if (source && dest && request) {
1.131 frystyk 1247: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 1248: HTPutContext * context = NULL;
1249:
1250: /*
1251: ** First we register an AFTER filter that can check the result
1252: ** of the source load if success then it can start the PUT
1253: ** operation to the destination.
1254: */
1255: if (!(context=(HTPutContext *) HT_CALLOC(1, sizeof(HTPutContext))))
1256: HT_OUTOFMEM("HTPutDocumentAnchor");
1257: context->source = source;
1258: context->destination = destination;
1.134 frystyk 1259:
1260: /*
1261: ** We register the after filter with a NULL template as we
1262: ** don't know the source of the data.
1263: */
1264: HTRequest_addAfter(request, HTSaveFilter, NULL, context, HT_ALL,
1265: HT_FILTER_FIRST, NO);
1.125 frystyk 1266:
1267: /* Turn off progress notifications */
1268: HTRequest_setInternal(request, YES);
1.124 frystyk 1269:
1270: /*
1271: ** We make sure that we are not using a memory cached element.
1272: ** It's OK to use a file cached element!
1273: */
1.133 frystyk 1274: HTRequest_setReloadMode(request, HT_CACHE_FLUSH_MEM);
1.124 frystyk 1275:
1276: /*
1277: ** Now we load the source document into a chunk. We specify that
1278: ** we want the document ASIS from the source location.
1279: */
1280: context->format = HTRequest_outputFormat(request);
1281: context->target = HTRequest_outputStream(request);
1282: HTRequest_setOutputFormat(request, WWW_SOURCE);
1283: context->document = HTLoadAnchorToChunk((HTAnchor*)source,request);
1284: if (context->document == NULL) {
1285: if (APP_TRACE) HTTrace("Put Document No source\n");
1286: HT_FREE(context);
1287: return NO;
1288: }
1289: return YES;
1290: }
1291: }
1292: return NO;
1293: }
1294:
1295: /* ------------------------------------------------------------------------- */
1.70 frystyk 1296:
1.90 frystyk 1297: /* Copy an anchor
1.70 frystyk 1298: ** --------------
1.90 frystyk 1299: ** Fetch the URL (possibly local file URL) and send it using either PUT
1300: ** or POST to the remote destination using HTTP. The caller can decide the
1301: ** exact method used and which HTTP header fields to transmit by setting
1302: ** the user fields in the request structure.
1.92 frystyk 1303: ** If posting to NNTP then we can't dispatch at this level but must pass
1304: ** the source anchor to the news module that then takes all the refs
1305: ** to NNTP and puts into the "newsgroups" header
1.70 frystyk 1306: */
1.109 frystyk 1307: PUBLIC BOOL HTCopyAnchor (HTAnchor * src_anchor, HTRequest * main_dest)
1.80 frystyk 1308: {
1.106 frystyk 1309: HTRequest * src_req;
1310: HTList * cur;
1.109 frystyk 1311: if (!src_anchor || !main_dest) {
1.115 eric 1312: if (WWWTRACE) HTTrace("Copy........ BAD ARGUMENT\n");
1.90 frystyk 1313: return NO;
1.109 frystyk 1314: }
1.70 frystyk 1315:
1.112 frystyk 1316: /* Set the source anchor */
1317: main_dest->source_anchor = HTAnchor_parent(src_anchor);
1318:
1.80 frystyk 1319: /* Build the POST web if not already there */
1.109 frystyk 1320: if (!main_dest->source) {
1321: src_req = HTRequest_dupInternal(main_dest); /* Get a duplicate */
1.80 frystyk 1322: HTAnchor_clearHeader((HTParentAnchor *) src_anchor);
1.109 frystyk 1323: src_req->method = METHOD_GET;
1.133 frystyk 1324: src_req->reload = HT_CACHE_FLUSH_MEM;
1.104 frystyk 1325: src_req->output_stream = NULL;
1.80 frystyk 1326: src_req->output_format = WWW_SOURCE; /* We want source (for now) */
1327:
1328: /* Set up the main link in the source anchor */
1329: {
1.106 frystyk 1330: HTLink * main_link = HTAnchor_mainLink((HTAnchor *) src_anchor);
1331: HTAnchor *main_anchor = HTLink_destination(main_link);
1332: HTMethod method = HTLink_method(main_link);
1.85 frystyk 1333: if (!main_link || method==METHOD_INVALID) {
1.91 frystyk 1334: if (WWWTRACE)
1.115 eric 1335: HTTrace("Copy Anchor. No destination found or unspecified method\n");
1.80 frystyk 1336: HTRequest_delete(src_req);
1.90 frystyk 1337: return NO;
1.80 frystyk 1338: }
1.109 frystyk 1339: main_dest->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1340: main_dest->reload = HT_CACHE_VALIDATE;
1.109 frystyk 1341: main_dest->method = method;
1342: main_dest->input_format = WWW_SOURCE;
1343: HTRequest_addDestination(src_req, main_dest);
1344: if (HTLoadAnchor(main_anchor, main_dest) == NO)
1345: return NO;
1.80 frystyk 1346: }
1.78 frystyk 1347:
1.80 frystyk 1348: /* For all other links in the source anchor */
1.106 frystyk 1349: if ((cur = HTAnchor_subLinks(src_anchor))) {
1350: HTLink * pres;
1.109 frystyk 1351: while ((pres = (HTLink *) HTList_nextObject(cur))) {
1.106 frystyk 1352: HTAnchor *dest = HTLink_destination(pres);
1353: HTMethod method = HTLink_method(pres);
1.80 frystyk 1354: HTRequest *dest_req;
1355: if (!dest || method==METHOD_INVALID) {
1.91 frystyk 1356: if (WWWTRACE)
1.115 eric 1357: HTTrace("Copy Anchor. Bad anchor setup %p\n",
1.80 frystyk 1358: dest);
1.90 frystyk 1359: return NO;
1.80 frystyk 1360: }
1.109 frystyk 1361: dest_req = HTRequest_dupInternal(main_dest);
1.107 frystyk 1362: dest_req->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1363: dest_req->reload = HT_CACHE_VALIDATE;
1.80 frystyk 1364: dest_req->method = method;
1.104 frystyk 1365: dest_req->output_stream = NULL;
1366: dest_req->output_format = WWW_SOURCE;
1.109 frystyk 1367: HTRequest_addDestination(src_req, dest_req);
1.104 frystyk 1368:
1.90 frystyk 1369: if (HTLoadAnchor(dest, dest_req) == NO)
1370: return NO;
1.80 frystyk 1371: }
1372: }
1373: } else { /* Use the existing Post Web and restart it */
1.109 frystyk 1374: src_req = main_dest->source;
1.80 frystyk 1375: if (src_req->mainDestination)
1.124 frystyk 1376: if (launch_request(main_dest, NO) == NO)
1.90 frystyk 1377: return NO;
1.80 frystyk 1378: if (src_req->destinations) {
1.106 frystyk 1379: HTRequest * pres;
1380: cur = HTAnchor_subLinks(src_anchor);
1.80 frystyk 1381: while ((pres = (HTRequest *) HTList_nextObject(cur)) != NULL) {
1.124 frystyk 1382: if (launch_request(pres, NO) == NO)
1.90 frystyk 1383: return NO;
1.80 frystyk 1384: }
1385: }
1.78 frystyk 1386: }
1387:
1.80 frystyk 1388: /* Now open the source */
1389: return HTLoadAnchor(src_anchor, src_req);
1.70 frystyk 1390: }
1391:
1.90 frystyk 1392: /* Upload an Anchor
1.70 frystyk 1393: ** ----------------
1.111 frystyk 1394: ** This function can be used to send data along with a request to a remote
1395: ** server. It can for example be used to POST form data to a remote HTTP
1396: ** server - or it can be used to post a newsletter to a NNTP server. In
1397: ** either case, you pass a callback function which the request calls when
1398: ** the remote destination is ready to accept data. In this callback
1399: ** you get the current request object and a stream into where you can
1400: ** write data. It is very important that you return the value returned
1401: ** by this stream to the Library so that it knows what to do next. The
1402: ** reason is that the outgoing stream might block or an error may
1403: ** occur and in that case the Library must know about it. The source
1404: ** anchor represents the data object in memory and it points to
1405: ** the destination anchor by using the POSTWeb method. The source anchor
1406: ** contains metainformation about the data object in memory and the
1407: ** destination anchor represents the reponse from the remote server.
1.90 frystyk 1408: ** Returns YES if request accepted, else NO
1409: */
1.111 frystyk 1410: PUBLIC BOOL HTUploadAnchor (HTAnchor * source_anchor,
1411: HTRequest * request,
1412: HTPostCallback * callback)
1413: {
1414: HTLink * link = HTAnchor_mainLink((HTAnchor *) source_anchor);
1415: HTAnchor * dest_anchor = HTLink_destination(link);
1416: HTMethod method = HTLink_method(link);
1417: if (!link || method==METHOD_INVALID || !callback) {
1418: if (WWWTRACE)
1.115 eric 1419: HTTrace("Upload...... No destination found or unspecified method\n");
1.90 frystyk 1420: return NO;
1.109 frystyk 1421: }
1.111 frystyk 1422: request->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1423: request->reload = HT_CACHE_VALIDATE;
1.111 frystyk 1424: request->method = method;
1425: request->source_anchor = HTAnchor_parent(source_anchor);
1426: request->PostCallback = callback;
1427: return HTLoadAnchor(dest_anchor, request);
1428: }
1429:
1430: /* POST Callback Handler
1431: ** ---------------------
1432: ** If you do not want to handle the stream interface on your own, you
1433: ** can use this function which writes the source anchor hyperdoc to the
1434: ** target stream for the anchor upload and also handles the return value
1435: ** from the stream. If you don't want to write the source anchor hyperdoc
1436: ** then you can register your own callback function that can get the data
1437: ** you want.
1438: */
1439: PUBLIC int HTUpload_callback (HTRequest * request, HTStream * target)
1440: {
1.115 eric 1441: if (WWWTRACE) HTTrace("Uploading... from callback function\n");
1.111 frystyk 1442: if (!request || !request->source_anchor || !target) return HT_ERROR;
1443: {
1444: int status;
1445: HTParentAnchor * source = request->source_anchor;
1446: char * document = (char *) HTAnchor_document(request->source_anchor);
1447: int len = HTAnchor_length(source);
1448: if (len < 0) {
1449: len = strlen(document);
1450: HTAnchor_setLength(source, len);
1451: }
1452: status = (*target->isa->put_block)(target, document, len);
1453: if (status == HT_OK)
1454: return (*target->isa->flush)(target);
1455: if (status == HT_WOULD_BLOCK) {
1.115 eric 1456: if (PROT_TRACE)HTTrace("POST Anchor. Target WOULD BLOCK\n");
1.111 frystyk 1457: return HT_WOULD_BLOCK;
1458: } else if (status == HT_PAUSE) {
1.115 eric 1459: if (PROT_TRACE) HTTrace("POST Anchor. Target PAUSED\n");
1.111 frystyk 1460: return HT_PAUSE;
1461: } else if (status > 0) { /* Stream specific return code */
1462: if (PROT_TRACE)
1.115 eric 1463: HTTrace("POST Anchor. Target returns %d\n", status);
1.111 frystyk 1464: return status;
1.120 eric 1465: } else { /* we have a real error */
1.115 eric 1466: if (PROT_TRACE) HTTrace("POST Anchor. Target ERROR\n");
1.111 frystyk 1467: return status;
1468: }
1.70 frystyk 1469: }
1.123 frystyk 1470: }
1471:
1472: /* ------------------------------------------------------------------------- */
1473: /* HEAD METHOD */
1474: /* ------------------------------------------------------------------------- */
1475:
1476: /* Request metainformation about a document from absolute name
1477: ** -----------------------------------------------------------
1478: ** Request a document referencd by an absolute URL.
1479: ** Returns YES if request accepted, else NO
1480: */
1481: PUBLIC BOOL HTHeadAbsolute (const char * url, HTRequest * request)
1482: {
1483: if (url && request) {
1484: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1485: return HTHeadAnchor(anchor, request);
1.123 frystyk 1486: }
1487: return NO;
1488: }
1489:
1490: /* Request metainformation about a document from relative name
1491: ** -----------------------------------------------------------
1492: ** Request a document referenced by a relative URL. The relative URL is
1493: ** made absolute by resolving it relative to the address of the 'base'
1494: ** anchor.
1495: ** Returns YES if request accepted, else NO
1496: */
1497: PUBLIC BOOL HTHeadRelative (const char * relative,
1498: HTParentAnchor * base,
1499: HTRequest * request)
1500: {
1501: BOOL status = NO;
1502: if (relative && base && request) {
1503: char * rel = NULL;
1504: char * full_url = NULL;
1505: char * base_url = HTAnchor_address((HTAnchor *) base);
1506: StrAllocCopy(rel, relative);
1507: full_url = HTParse(HTStrip(rel), base_url,
1508: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1509: status = HTHeadAbsolute(full_url, request);
1.123 frystyk 1510: HT_FREE(rel);
1511: HT_FREE(full_url);
1512: HT_FREE(base_url);
1513: }
1514: return status;
1515: }
1516:
1517: /* Request metainformation about an anchor
1518: ** --------------------------------------
1519: ** Request the document referenced by the anchor
1520: ** Returns YES if request accepted, else NO
1521: */
1522: PUBLIC BOOL HTHeadAnchor (HTAnchor * anchor, HTRequest * request)
1523: {
1524: if (anchor && request) {
1525: HTRequest_setAnchor(request, anchor);
1526: HTRequest_setMethod(request, METHOD_HEAD);
1.124 frystyk 1527: return launch_request(request, NO);
1.123 frystyk 1528: }
1529: return NO;
1530: }
1531:
1532: /* ------------------------------------------------------------------------- */
1533: /* DELETE METHOD */
1534: /* ------------------------------------------------------------------------- */
1535:
1536: /* Delete a document on a remote server
1537: ** ------------------------------------
1538: ** Request a document referencd by an absolute URL.
1539: ** Returns YES if request accepted, else NO
1540: */
1541: PUBLIC BOOL HTDeleteAbsolute (const char * url, HTRequest * request)
1542: {
1543: if (url && request) {
1544: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1545: return HTDeleteAnchor(anchor, request);
1.123 frystyk 1546: }
1547: return NO;
1548: }
1549:
1550: /* Request metainformation about a document from relative name
1551: ** -----------------------------------------------------------
1552: ** Request a document referenced by a relative URL. The relative URL is
1553: ** made absolute by resolving it relative to the address of the 'base'
1554: ** anchor.
1555: ** Returns YES if request accepted, else NO
1556: */
1557: PUBLIC BOOL HTDeleteRelative (const char * relative,
1558: HTParentAnchor * base,
1559: HTRequest * request)
1560: {
1561: BOOL status = NO;
1562: if (relative && base && request) {
1563: char * rel = NULL;
1564: char * full_url = NULL;
1565: char * base_url = HTAnchor_address((HTAnchor *) base);
1566: StrAllocCopy(rel, relative);
1567: full_url = HTParse(HTStrip(rel), base_url,
1568: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1569: status = HTDeleteAbsolute(full_url, request);
1.123 frystyk 1570: HT_FREE(rel);
1571: HT_FREE(full_url);
1572: HT_FREE(base_url);
1573: }
1574: return status;
1575: }
1576:
1577: /* Request metainformation about an anchor
1578: ** --------------------------------------
1579: ** Request the document referenced by the anchor
1580: ** Returns YES if request accepted, else NO
1581: */
1582: PUBLIC BOOL HTDeleteAnchor (HTAnchor * anchor, HTRequest * request)
1583: {
1584: if (anchor && request) {
1585: HTRequest_setAnchor(request, anchor);
1586: HTRequest_setMethod(request, METHOD_DELETE);
1.124 frystyk 1587: return launch_request(request, NO);
1588: }
1589: return NO;
1590: }
1591:
1592: /* ------------------------------------------------------------------------- */
1593: /* OPTIONS METHOD */
1594: /* ------------------------------------------------------------------------- */
1595:
1596: /* Options availeble for document from absolute name
1597: ** -------------------------------------------------
1598: ** Request a document referencd by an absolute URL.
1599: ** Returns YES if request accepted, else NO
1600: */
1601: PUBLIC BOOL HTOptionsAbsolute (const char * url, HTRequest * request)
1602: {
1603: if (url && request) {
1604: HTAnchor * anchor = HTAnchor_findAddress(url);
1605: return HTOptionsAnchor(anchor, request);
1606: }
1607: return NO;
1608: }
1609:
1610: /* Options available for document from relative name
1611: ** -------------------------------------------------
1612: ** Request a document referenced by a relative URL. The relative URL is
1613: ** made absolute by resolving it relative to the address of the 'base'
1614: ** anchor.
1615: ** Returns YES if request accepted, else NO
1616: */
1617: PUBLIC BOOL HTOptionsRelative (const char * relative,
1618: HTParentAnchor * base,
1619: HTRequest * request)
1620: {
1621: BOOL status = NO;
1622: if (relative && base && request) {
1623: char * rel = NULL;
1624: char * full_url = NULL;
1625: char * base_url = HTAnchor_address((HTAnchor *) base);
1626: StrAllocCopy(rel, relative);
1627: full_url = HTParse(HTStrip(rel), base_url,
1628: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1629: status = HTOptionsAbsolute(full_url, request);
1630: HT_FREE(rel);
1631: HT_FREE(full_url);
1632: HT_FREE(base_url);
1633: }
1634: return status;
1635: }
1636:
1637: /* Options available for document using Anchor
1638: ** -------------------------------------------
1639: ** Request the document referenced by the anchor
1640: ** Returns YES if request accepted, else NO
1641: */
1642: PUBLIC BOOL HTOptionsAnchor (HTAnchor * anchor, HTRequest * request)
1643: {
1644: if (anchor && request) {
1645: HTRequest_setAnchor(request, anchor);
1646: HTRequest_setMethod(request, METHOD_OPTIONS);
1647: return launch_request(request, NO);
1.123 frystyk 1648: }
1649: return NO;
1.1 timbl 1650: }
1.127 frystyk 1651:
1652: /* ------------------------------------------------------------------------- */
1653: /* TRACE METHOD */
1654: /* ------------------------------------------------------------------------- */
1655:
1656: /* Traces available for document from absolute name
1657: ** ------------------------------------------------
1658: ** Request a document referencd by an absolute URL.
1659: ** Returns YES if request accepted, else NO
1660: */
1661: PUBLIC BOOL HTTraceAbsolute (const char * url, HTRequest * request)
1662: {
1663: if (url && request) {
1664: HTAnchor * anchor = HTAnchor_findAddress(url);
1665: return HTTraceAnchor(anchor, request);
1666: }
1667: return NO;
1668: }
1669:
1670: /* Traces available for document from relative name
1671: ** ------------------------------------------------
1672: ** Request a document referenced by a relative URL. The relative URL is
1673: ** made absolute by resolving it relative to the address of the 'base'
1674: ** anchor.
1675: ** Returns YES if request accepted, else NO
1676: */
1677: PUBLIC BOOL HTTraceRelative (const char * relative,
1678: HTParentAnchor * base,
1679: HTRequest * request)
1680: {
1681: BOOL status = NO;
1682: if (relative && base && request) {
1683: char * rel = NULL;
1684: char * full_url = NULL;
1685: char * base_url = HTAnchor_address((HTAnchor *) base);
1686: StrAllocCopy(rel, relative);
1687: full_url = HTParse(HTStrip(rel), base_url,
1688: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1689: status = HTTraceAbsolute(full_url, request);
1690: HT_FREE(rel);
1691: HT_FREE(full_url);
1692: HT_FREE(base_url);
1693: }
1694: return status;
1695: }
1696:
1697: /* Trace available for document using Anchor
1698: ** -------------------------------------------
1699: ** Request the document referenced by the anchor
1700: ** Returns YES if request accepted, else NO
1701: */
1702: PUBLIC BOOL HTTraceAnchor (HTAnchor * anchor, HTRequest * request)
1703: {
1704: if (anchor && request) {
1705: HTRequest_setAnchor(request, anchor);
1706: HTRequest_setMethod(request, METHOD_TRACE);
1707: return launch_request(request, NO);
1708: }
1709: return NO;
1710: }
1711:
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