Annotation of libwww/Library/src/HTAccess.c, revision 1.149
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.
1.149 ! frystyk 6: ** @(#) $Id: HTAccess.c,v 1.148 1998/09/03 19:45:26 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: /* --------------------------------------------------------------------------*/
1.149 ! frystyk 759:
! 760: /*
! 761: ** If we use our persistent cache then we can protect
! 762: ** against the lost update problem by saving the etag
! 763: ** or last modified date in the cache and use it on all
! 764: ** our PUT operations.
! 765: */
! 766: PRIVATE BOOL add_preconditions (HTRequest * request)
! 767: {
! 768: if (request) {
! 769: HTPreconditions precons = HTRequest_preconditions(request);
! 770: switch (precons) {
! 771: case HT_MATCH_THIS:
! 772: HTRequest_addRqHd(request, HT_C_IF_MATCH | HT_C_IF_UNMOD_SINCE);
! 773: break;
! 774:
! 775: case HT_MATCH_ANY:
! 776: HTRequest_addRqHd(request, HT_C_IF_MATCH_ANY);
! 777: break;
! 778:
! 779: case HT_DONT_MATCH_THIS:
! 780: HTRequest_addRqHd(request, HT_C_IF_NONE_MATCH | HT_C_IMS);
! 781: break;
! 782:
! 783: case HT_DONT_MATCH_ANY:
! 784: HTRequest_addRqHd(request, HT_C_IF_NONE_MATCH_ANY);
! 785: break;
! 786: }
! 787: return YES;
! 788: }
! 789: return NO;
! 790: }
! 791:
1.125 frystyk 792: PRIVATE BOOL setup_anchors (HTRequest * request,
1.131 frystyk 793: HTParentAnchor * source, HTParentAnchor * dest,
794: HTMethod method)
1.124 frystyk 795: {
1.131 frystyk 796: if (!(method & (METHOD_PUT | METHOD_POST))) {
797: if (APP_TRACE) HTTrace("Posting..... Bad method\n");
798: return NO;
799: }
800:
1.124 frystyk 801: /*
1.127 frystyk 802: ** Check whether we know if it is possible to PUT to this destination.
803: ** We both check the local set of allowed methods in the anchor and any
804: ** site information that we may have about the location of the origin
805: ** server.
1.124 frystyk 806: */
807: {
1.131 frystyk 808: char * addr = HTAnchor_address((HTAnchor *) source);
809: char * hostname = HTParse(addr, "", PARSE_HOST);
1.142 frystyk 810: #if 0
1.131 frystyk 811: HTHost * host = HTHost_find(hostname);
812: HTMethod public_methods = HTHost_publicMethods(host);
1.134 frystyk 813: HTMethod private_methods = HTAnchor_allow(dest);
1.141 frystyk 814: #endif
1.131 frystyk 815: HT_FREE(hostname);
816: HT_FREE(addr);
1.141 frystyk 817:
818: #if 0
819: /*
820: ** Again, this may be too cautios for normal operations
821: */
1.131 frystyk 822: if (!(method & (private_methods | public_methods))) {
1.124 frystyk 823: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
824: if (prompt) {
825: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_METHOD,
826: NULL, NULL, NULL) != YES)
827: return NO;
828: }
829: }
1.141 frystyk 830: #endif
1.124 frystyk 831: }
832:
833: /*
834: ** Bind the source anchor to the dest anchor that will contain the
835: ** response. If link already exists then ask is we should do it again.
836: ** If so then remove the old link and replace it with a new one.
837: */
838: {
839: HTLink *link = HTLink_find((HTAnchor *) source, (HTAnchor *) dest);
840: if (link && HTLink_method(link) == METHOD_PUT) {
841: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
842: if (prompt) {
843: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_REDO,
844: NULL, NULL, NULL) != YES)
845: return NO;
846: }
847: HTLink_remove((HTAnchor *) source, (HTAnchor *) dest);
848: }
849: HTLink_add((HTAnchor*) source, (HTAnchor*) dest, NULL, METHOD_PUT);
850: }
851: return YES;
852: }
853:
854: /* Send an Anchor using PUT from absolute name
855: ** -------------------------------------------
856: ** Upload a document referenced by an absolute URL appended.
857: ** The URL can NOT contain any fragment identifier!
858: ** The list of form data must be given as an association list where
859: ** the name is the field name and the value is the value of the field.
860: */
861: PUBLIC BOOL HTPutAbsolute (HTParentAnchor * source,
862: const char * destination,
863: HTRequest * request)
864: {
865: if (source && destination && request) {
866: HTAnchor * dest = HTAnchor_findAddress(destination);
867: return HTPutAnchor(source, dest, request);
868: }
869: return NO;
870: }
871:
872: /* Send an Anchor using PUT from relative name
873: ** -------------------------------------------
874: ** Upload a document referenced by a relative URL appended.
875: ** The URL can NOT contain any fragment identifier!
876: ** The list of form data must be given as an association list where
877: ** the name is the field name and the value is the value of the field.
878: */
879: PUBLIC BOOL HTPutRelative (HTParentAnchor * source,
880: const char * relative,
881: HTParentAnchor * destination_base,
882: HTRequest * request)
883: {
884: if (source && relative && destination_base && request) {
885: BOOL status;
886: char * full_url = NULL;
887: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
888: full_url=HTParse(relative, base_url,
889: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
890: status = HTPutAbsolute(source, full_url, request);
891: HT_FREE(full_url);
892: HT_FREE(base_url);
893: return status;
894: }
895: return NO;
896: }
897:
898: /* Send an Anchor using PUT from an anchor
899: ** ---------------------------------------
900: ** Upload a document referenced by an anchor object 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 HTPutAnchor (HTParentAnchor * source,
906: HTAnchor * destination,
907: HTRequest * request)
908: {
909: HTParentAnchor * dest = HTAnchor_parent(destination);
910: if (source && dest && request) {
1.131 frystyk 911: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 912:
913: /* Set up the request object */
914: HTRequest_addGnHd(request, HT_G_DATE);
1.149 ! frystyk 915: add_preconditions(request);
1.124 frystyk 916: HTRequest_setEntityAnchor(request, source);
917: HTRequest_setMethod(request, METHOD_PUT);
918: HTRequest_setAnchor(request, destination);
919:
920: /* Add the entity callback function to provide the form data */
921: HTRequest_setPostCallback(request, HTEntity_callback);
922:
923: /* Now start the load normally */
924: return launch_request(request, NO);
925: }
926: }
927: return NO;
928: }
929:
1.125 frystyk 930: /* Send an Anchor using POST from absolute name
931: ** -------------------------------------------
932: ** Upload a document referenced by an absolute URL appended.
933: ** The URL can NOT contain any fragment identifier!
934: ** The list of form data must be given as an association list where
935: ** the name is the field name and the value is the value of the field.
936: */
937: PUBLIC BOOL HTPostAbsolute (HTParentAnchor * source,
938: const char * destination,
939: HTRequest * request)
940: {
941: if (source && destination && request) {
942: HTAnchor * dest = HTAnchor_findAddress(destination);
943: return HTPostAnchor(source, dest, request);
944: }
945: return NO;
946: }
947:
948: /* Send an Anchor using POST from relative name
949: ** -------------------------------------------
950: ** Upload a document referenced by a relative URL appended.
951: ** The URL can NOT contain any fragment identifier!
952: ** The list of form data must be given as an association list where
953: ** the name is the field name and the value is the value of the field.
954: */
955: PUBLIC BOOL HTPostRelative (HTParentAnchor * source,
956: const char * relative,
957: HTParentAnchor * destination_base,
958: HTRequest * request)
959: {
960: if (source && relative && destination_base && request) {
961: BOOL status;
962: char * full_url = NULL;
963: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
964: full_url=HTParse(relative, base_url,
965: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
966: status = HTPostAbsolute(source, full_url, request);
967: HT_FREE(full_url);
968: HT_FREE(base_url);
969: return status;
970: }
971: return NO;
972: }
973:
974: /* Send an Anchor using POST from an anchor
975: ** ---------------------------------------
976: ** Upload a document referenced by an anchor object appended
977: ** The URL can NOT contain any fragment identifier!
978: ** The list of form data must be given as an association list where
979: ** the name is the field name and the value is the value of the field.
980: */
981: PUBLIC BOOL HTPostAnchor (HTParentAnchor * source,
982: HTAnchor * destination,
983: HTRequest * request)
984: {
985: HTParentAnchor * dest = HTAnchor_parent(destination);
986: if (source && dest && request) {
1.131 frystyk 987: if (setup_anchors(request, source, dest, METHOD_POST) == YES) {
1.125 frystyk 988:
989: /* Set up the request object */
990: HTRequest_addGnHd(request, HT_G_DATE);
991: HTRequest_setEntityAnchor(request, source);
992: HTRequest_setMethod(request, METHOD_POST);
993: HTRequest_setAnchor(request, destination);
994:
995: /* Add the entity callback function to provide the form data */
996: HTRequest_setPostCallback(request, HTEntity_callback);
997:
998: /* Now start the load normally */
999: return launch_request(request, NO);
1000: }
1001: }
1002: return NO;
1003: }
1004:
1.124 frystyk 1005: /* Send an Anchor using PUT from absolute name
1006: ** -------------------------------------------
1007: ** Upload a document referenced by an absolute URL appended.
1008: ** The URL can NOT contain any fragment identifier!
1009: ** The list of form data must be given as an association list where
1010: ** the name is the field name and the value is the value of the field.
1011: */
1012: PUBLIC BOOL HTPutStructuredAbsolute (HTParentAnchor * source,
1013: const char * destination,
1014: HTRequest * request,
1015: HTPostCallback * input)
1016: {
1017: if (source && destination && request && input) {
1018: HTAnchor * dest = HTAnchor_findAddress(destination);
1019: return HTPutStructuredAnchor(source, dest, request, input);
1020: }
1021: return NO;
1022: }
1023:
1024: /* Send an Anchor using PUT from relative name
1025: ** -------------------------------------------
1026: ** Upload a document referenced by a relative URL appended.
1027: ** The URL can NOT contain any fragment identifier!
1028: ** The list of form data must be given as an association list where
1029: ** the name is the field name and the value is the value of the field.
1030: */
1031: PUBLIC BOOL HTPutStructuredRelative (HTParentAnchor * source,
1032: const char * relative,
1033: HTParentAnchor * destination_base,
1034: HTRequest * request,
1035: HTPostCallback * input)
1036: {
1037: if (source && relative && destination_base && request && input) {
1038: BOOL status;
1039: char * full_url = NULL;
1040: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
1041: full_url=HTParse(relative, base_url,
1042: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1043: status = HTPutStructuredAbsolute(source, full_url, request, input);
1044: HT_FREE(full_url);
1045: HT_FREE(base_url);
1046: return status;
1047: }
1048: return NO;
1049: }
1050:
1051: /* Send an Anchor using PUT from an anchor
1052: ** ---------------------------------------
1053: ** Upload a document referenced by an anchor object appended
1054: ** The URL can NOT contain any fragment identifier!
1055: ** The list of form data must be given as an association list where
1056: ** the name is the field name and the value is the value of the field.
1057: */
1058: PUBLIC BOOL HTPutStructuredAnchor (HTParentAnchor * source,
1059: HTAnchor * destination,
1060: HTRequest * request,
1061: HTPostCallback * input)
1062: {
1063: HTParentAnchor * dest = HTAnchor_parent(destination);
1064: if (source && dest && request) {
1.131 frystyk 1065: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 1066:
1067: /* Set up the request object */
1068: HTRequest_addGnHd(request, HT_G_DATE);
1.149 ! frystyk 1069: add_preconditions(request);
1.124 frystyk 1070: HTRequest_setEntityAnchor(request, source);
1071: HTRequest_setMethod(request, METHOD_PUT);
1072: HTRequest_setAnchor(request, destination);
1073:
1074: /* Add the entity callback function to provide the form data */
1075: HTRequest_setPostCallback(request, input);
1076:
1077: /* Now start the load normally */
1078: return launch_request(request, NO);
1079: }
1080: }
1081: return NO;
1082: }
1083:
1084: /*
1.144 frystyk 1085: ** After filter for handling PUT of document.
1.124 frystyk 1086: */
1.134 frystyk 1087: PRIVATE int HTSaveFilter (HTRequest * request, HTResponse * response,
1088: void * param, int status)
1.124 frystyk 1089: {
1090: HTPutContext * me = (HTPutContext *) param;
1091: if (APP_TRACE)
1092: HTTrace("Save Filter. Using context %p with state %c\n",
1093: me, me->state+0x30);
1094:
1095: /*
1.125 frystyk 1096: ** Just ignore authentication in the hope that some other filter will
1097: ** handle this.
1098: */
1.138 frystyk 1099: if (status == HT_NO_ACCESS || status == HT_NO_PROXY_ACCESS ||
1100: status == HT_REAUTH || status == HT_PROXY_REAUTH) {
1.125 frystyk 1101: if (APP_TRACE) HTTrace("Save Filter. Waiting for authentication\n");
1102: return HT_OK;
1103: }
1104:
1105: /*
1.124 frystyk 1106: ** If either the source or the destination has moved then ask the user
1107: ** what to do. If there is no user then stop
1108: */
1.138 frystyk 1109: if (status == HT_TEMP_REDIRECT || status == HT_PERM_REDIRECT ||
1110: status == HT_FOUND || status == HT_SEE_OTHER) {
1.124 frystyk 1111: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
1.134 frystyk 1112: HTAnchor * redirection = HTResponse_redirection(response);
1.124 frystyk 1113: if (prompt && redirection) {
1.125 frystyk 1114: if (me->state == HT_LOAD_SOURCE) {
1.124 frystyk 1115: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_SOURCE_MOVED,
1116: NULL, NULL, NULL) == YES) {
1117: me->source = HTAnchor_parent(redirection);
1.128 frystyk 1118: } else {
1119: /*
1120: ** Make sure that the operation stops
1121: */
1122: me->state = HT_ABORT_SAVE;
1.124 frystyk 1123: }
1124: } else {
1.141 frystyk 1125: #if 0
1126: /*
1127: ** If you are very precautios then you can ask here whether
1128: ** we should continue or not in case of a redirection
1129: */
1.124 frystyk 1130: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_DESTINATION_MOVED,
1131: NULL, NULL, NULL) == YES) {
1132: me->destination = redirection;
1.128 frystyk 1133: } else {
1134: /*
1135: ** Make sure that the operation stops
1136: */
1137: me->state = HT_ABORT_SAVE;
1.124 frystyk 1138: }
1.141 frystyk 1139: #else
1140: if (APP_TRACE) HTTrace("Save Filter. Destination hae moved!\n");
1141: me->destination = redirection;
1142: #endif
1.124 frystyk 1143: }
1144: }
1.128 frystyk 1145: return HT_OK;
1.124 frystyk 1146: }
1147:
1148: /*
1.125 frystyk 1149: ** If we succeeded getting the source then start the PUT itself. Otherwise
1150: ** cleanup the mess
1.124 frystyk 1151: */
1.148 frystyk 1152: if (me->state == HT_LOAD_SOURCE &&
1153: (status == HT_LOADED || status == HT_NOT_MODIFIED) &&
1.125 frystyk 1154: !HTError_hasSeverity(HTRequest_error(request), ERR_INFO)) {
1.124 frystyk 1155:
1156: /* Swap the document in the anchor with the new one */
1157: me->placeholder = HTAnchor_document(me->source);
1158: HTAnchor_setDocument(me->source, HTChunk_data(me->document));
1159:
1160: /* Set up the request object */
1161: HTRequest_addGnHd(request, HT_G_DATE);
1162: HTRequest_setEntityAnchor(request, me->source);
1163: HTRequest_setMethod(request, METHOD_PUT);
1164: HTRequest_setAnchor(request, me->destination);
1165: HTRequest_setOutputFormat(request, me->format);
1166: HTRequest_setOutputStream(request, me->target);
1.144 frystyk 1167:
1.149 ! frystyk 1168: /* Set up preconditions */
! 1169: add_preconditions(request);
1.145 frystyk 1170:
1171: /* Delete existing credentials as they are generated anew */
1172: HTRequest_deleteCredentialsAll(request);
1.124 frystyk 1173:
1.139 frystyk 1174: /* Make sure we flush the output immediately */
1175: HTRequest_forceFlush(request);
1176:
1.125 frystyk 1177: /* Turn progress notifications back on */
1178: HTRequest_setInternal(request, NO);
1179:
1.124 frystyk 1180: /* Add the entity callback function to provide the form data */
1181: HTRequest_setPostCallback(request, HTEntity_callback);
1182:
1183: /* Now start the load normally */
1.143 frystyk 1184: if (launch_request(request, NO) == YES)
1185: me->state = HT_SAVE_DEST;
1186: else {
1187: HTAnchor_setDocument(me->source, me->placeholder);
1188: HTChunk_delete(me->document);
1189: HT_FREE(me);
1190: }
1191: #if 0
1.124 frystyk 1192: me->state = launch_request(request, NO) ?
1.125 frystyk 1193: HT_SAVE_DEST : HT_LOAD_SOURCE;
1.143 frystyk 1194: #endif
1.124 frystyk 1195: /*
1196: ** By returning HT_ERROR we make sure that this is the last handler to
1197: ** be called. We do this as we don't want any other filter to delete
1198: ** the request object now when we have just started a new one
1199: ** ourselves
1200: */
1201: return HT_ERROR;
1202:
1203: } else {
1204: HTAnchor_setDocument(me->source, me->placeholder);
1205: HTChunk_delete(me->document);
1206: HT_FREE(me);
1207: }
1208: return HT_OK;
1209: }
1210:
1211: /* Send an Anchor using PUT from absolute name
1212: ** -------------------------------------------
1213: ** Upload a document referenced by an absolute URL appended.
1214: ** The URL can NOT contain any fragment identifier!
1215: ** The list of form data must be given as an association list where
1216: ** the name is the field name and the value is the value of the field.
1217: */
1218: PUBLIC BOOL HTPutDocumentAbsolute (HTParentAnchor * source,
1219: const char * destination,
1220: HTRequest * request)
1221: {
1222: if (source && destination && request) {
1223: HTAnchor * dest = HTAnchor_findAddress(destination);
1224: return HTPutDocumentAnchor(source, dest, request);
1225: }
1226: return NO;
1227: }
1228:
1229: /* Send an Anchor using PUT from relative name
1230: ** -------------------------------------------
1231: ** Upload a document referenced by a relative URL appended.
1232: ** The URL can NOT contain any fragment identifier!
1233: ** The list of form data must be given as an association list where
1234: ** the name is the field name and the value is the value of the field.
1235: */
1236: PUBLIC BOOL HTPutDocumentRelative (HTParentAnchor * source,
1237: const char * relative,
1238: HTParentAnchor * destination_base,
1239: HTRequest * request)
1240: {
1241: if (source && relative && destination_base && request) {
1242: BOOL status;
1243: char * full_url = NULL;
1244: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
1245: full_url=HTParse(relative, base_url,
1246: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1247: status = HTPutDocumentAbsolute(source, full_url, request);
1248: HT_FREE(full_url);
1249: HT_FREE(base_url);
1250: return status;
1251: }
1252: return NO;
1253: }
1254:
1255: /* Send an Anchor using PUT from an anchor
1256: ** ---------------------------------------
1257: ** Upload a document referenced by an anchor object appended
1258: ** The URL can NOT contain any fragment identifier!
1259: ** The source document is first loaded into memory and then the PUT
1260: ** to the remote server is done using the memory version
1261: */
1262: PUBLIC BOOL HTPutDocumentAnchor (HTParentAnchor * source,
1263: HTAnchor * destination,
1264: HTRequest * request)
1265: {
1266: HTParentAnchor * dest = HTAnchor_parent(destination);
1267: if (source && dest && request) {
1.131 frystyk 1268: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 1269: HTPutContext * context = NULL;
1270:
1271: /*
1272: ** First we register an AFTER filter that can check the result
1273: ** of the source load if success then it can start the PUT
1274: ** operation to the destination.
1275: */
1276: if (!(context=(HTPutContext *) HT_CALLOC(1, sizeof(HTPutContext))))
1277: HT_OUTOFMEM("HTPutDocumentAnchor");
1278: context->source = source;
1279: context->destination = destination;
1.134 frystyk 1280:
1281: /*
1282: ** We register the after filter with a NULL template as we
1283: ** don't know the source of the data.
1284: */
1285: HTRequest_addAfter(request, HTSaveFilter, NULL, context, HT_ALL,
1286: HT_FILTER_FIRST, NO);
1.125 frystyk 1287:
1288: /* Turn off progress notifications */
1289: HTRequest_setInternal(request, YES);
1.124 frystyk 1290:
1291: /*
1292: ** We make sure that we are not using a memory cached element.
1293: ** It's OK to use a file cached element!
1294: */
1.133 frystyk 1295: HTRequest_setReloadMode(request, HT_CACHE_FLUSH_MEM);
1.124 frystyk 1296:
1297: /*
1298: ** Now we load the source document into a chunk. We specify that
1299: ** we want the document ASIS from the source location.
1300: */
1301: context->format = HTRequest_outputFormat(request);
1302: context->target = HTRequest_outputStream(request);
1303: HTRequest_setOutputFormat(request, WWW_SOURCE);
1304: context->document = HTLoadAnchorToChunk((HTAnchor*)source,request);
1305: if (context->document == NULL) {
1306: if (APP_TRACE) HTTrace("Put Document No source\n");
1307: HT_FREE(context);
1308: return NO;
1309: }
1310: return YES;
1311: }
1312: }
1313: return NO;
1314: }
1315:
1316: /* ------------------------------------------------------------------------- */
1.70 frystyk 1317:
1.90 frystyk 1318: /* Copy an anchor
1.70 frystyk 1319: ** --------------
1.90 frystyk 1320: ** Fetch the URL (possibly local file URL) and send it using either PUT
1321: ** or POST to the remote destination using HTTP. The caller can decide the
1322: ** exact method used and which HTTP header fields to transmit by setting
1323: ** the user fields in the request structure.
1.92 frystyk 1324: ** If posting to NNTP then we can't dispatch at this level but must pass
1325: ** the source anchor to the news module that then takes all the refs
1326: ** to NNTP and puts into the "newsgroups" header
1.70 frystyk 1327: */
1.109 frystyk 1328: PUBLIC BOOL HTCopyAnchor (HTAnchor * src_anchor, HTRequest * main_dest)
1.80 frystyk 1329: {
1.106 frystyk 1330: HTRequest * src_req;
1331: HTList * cur;
1.109 frystyk 1332: if (!src_anchor || !main_dest) {
1.115 eric 1333: if (WWWTRACE) HTTrace("Copy........ BAD ARGUMENT\n");
1.90 frystyk 1334: return NO;
1.109 frystyk 1335: }
1.70 frystyk 1336:
1.112 frystyk 1337: /* Set the source anchor */
1338: main_dest->source_anchor = HTAnchor_parent(src_anchor);
1339:
1.80 frystyk 1340: /* Build the POST web if not already there */
1.109 frystyk 1341: if (!main_dest->source) {
1342: src_req = HTRequest_dupInternal(main_dest); /* Get a duplicate */
1.80 frystyk 1343: HTAnchor_clearHeader((HTParentAnchor *) src_anchor);
1.109 frystyk 1344: src_req->method = METHOD_GET;
1.133 frystyk 1345: src_req->reload = HT_CACHE_FLUSH_MEM;
1.104 frystyk 1346: src_req->output_stream = NULL;
1.80 frystyk 1347: src_req->output_format = WWW_SOURCE; /* We want source (for now) */
1348:
1349: /* Set up the main link in the source anchor */
1350: {
1.106 frystyk 1351: HTLink * main_link = HTAnchor_mainLink((HTAnchor *) src_anchor);
1352: HTAnchor *main_anchor = HTLink_destination(main_link);
1353: HTMethod method = HTLink_method(main_link);
1.85 frystyk 1354: if (!main_link || method==METHOD_INVALID) {
1.91 frystyk 1355: if (WWWTRACE)
1.115 eric 1356: HTTrace("Copy Anchor. No destination found or unspecified method\n");
1.80 frystyk 1357: HTRequest_delete(src_req);
1.90 frystyk 1358: return NO;
1.80 frystyk 1359: }
1.109 frystyk 1360: main_dest->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1361: main_dest->reload = HT_CACHE_VALIDATE;
1.109 frystyk 1362: main_dest->method = method;
1363: main_dest->input_format = WWW_SOURCE;
1364: HTRequest_addDestination(src_req, main_dest);
1365: if (HTLoadAnchor(main_anchor, main_dest) == NO)
1366: return NO;
1.80 frystyk 1367: }
1.78 frystyk 1368:
1.80 frystyk 1369: /* For all other links in the source anchor */
1.106 frystyk 1370: if ((cur = HTAnchor_subLinks(src_anchor))) {
1371: HTLink * pres;
1.109 frystyk 1372: while ((pres = (HTLink *) HTList_nextObject(cur))) {
1.106 frystyk 1373: HTAnchor *dest = HTLink_destination(pres);
1374: HTMethod method = HTLink_method(pres);
1.80 frystyk 1375: HTRequest *dest_req;
1376: if (!dest || method==METHOD_INVALID) {
1.91 frystyk 1377: if (WWWTRACE)
1.115 eric 1378: HTTrace("Copy Anchor. Bad anchor setup %p\n",
1.80 frystyk 1379: dest);
1.90 frystyk 1380: return NO;
1.80 frystyk 1381: }
1.109 frystyk 1382: dest_req = HTRequest_dupInternal(main_dest);
1.107 frystyk 1383: dest_req->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1384: dest_req->reload = HT_CACHE_VALIDATE;
1.80 frystyk 1385: dest_req->method = method;
1.104 frystyk 1386: dest_req->output_stream = NULL;
1387: dest_req->output_format = WWW_SOURCE;
1.109 frystyk 1388: HTRequest_addDestination(src_req, dest_req);
1.104 frystyk 1389:
1.90 frystyk 1390: if (HTLoadAnchor(dest, dest_req) == NO)
1391: return NO;
1.80 frystyk 1392: }
1393: }
1394: } else { /* Use the existing Post Web and restart it */
1.109 frystyk 1395: src_req = main_dest->source;
1.80 frystyk 1396: if (src_req->mainDestination)
1.124 frystyk 1397: if (launch_request(main_dest, NO) == NO)
1.90 frystyk 1398: return NO;
1.80 frystyk 1399: if (src_req->destinations) {
1.106 frystyk 1400: HTRequest * pres;
1401: cur = HTAnchor_subLinks(src_anchor);
1.80 frystyk 1402: while ((pres = (HTRequest *) HTList_nextObject(cur)) != NULL) {
1.124 frystyk 1403: if (launch_request(pres, NO) == NO)
1.90 frystyk 1404: return NO;
1.80 frystyk 1405: }
1406: }
1.78 frystyk 1407: }
1408:
1.80 frystyk 1409: /* Now open the source */
1410: return HTLoadAnchor(src_anchor, src_req);
1.70 frystyk 1411: }
1412:
1.90 frystyk 1413: /* Upload an Anchor
1.70 frystyk 1414: ** ----------------
1.111 frystyk 1415: ** This function can be used to send data along with a request to a remote
1416: ** server. It can for example be used to POST form data to a remote HTTP
1417: ** server - or it can be used to post a newsletter to a NNTP server. In
1418: ** either case, you pass a callback function which the request calls when
1419: ** the remote destination is ready to accept data. In this callback
1420: ** you get the current request object and a stream into where you can
1421: ** write data. It is very important that you return the value returned
1422: ** by this stream to the Library so that it knows what to do next. The
1423: ** reason is that the outgoing stream might block or an error may
1424: ** occur and in that case the Library must know about it. The source
1425: ** anchor represents the data object in memory and it points to
1426: ** the destination anchor by using the POSTWeb method. The source anchor
1427: ** contains metainformation about the data object in memory and the
1428: ** destination anchor represents the reponse from the remote server.
1.90 frystyk 1429: ** Returns YES if request accepted, else NO
1430: */
1.111 frystyk 1431: PUBLIC BOOL HTUploadAnchor (HTAnchor * source_anchor,
1432: HTRequest * request,
1433: HTPostCallback * callback)
1434: {
1435: HTLink * link = HTAnchor_mainLink((HTAnchor *) source_anchor);
1436: HTAnchor * dest_anchor = HTLink_destination(link);
1437: HTMethod method = HTLink_method(link);
1438: if (!link || method==METHOD_INVALID || !callback) {
1439: if (WWWTRACE)
1.115 eric 1440: HTTrace("Upload...... No destination found or unspecified method\n");
1.90 frystyk 1441: return NO;
1.109 frystyk 1442: }
1.111 frystyk 1443: request->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1444: request->reload = HT_CACHE_VALIDATE;
1.111 frystyk 1445: request->method = method;
1446: request->source_anchor = HTAnchor_parent(source_anchor);
1447: request->PostCallback = callback;
1448: return HTLoadAnchor(dest_anchor, request);
1449: }
1450:
1451: /* POST Callback Handler
1452: ** ---------------------
1453: ** If you do not want to handle the stream interface on your own, you
1454: ** can use this function which writes the source anchor hyperdoc to the
1455: ** target stream for the anchor upload and also handles the return value
1456: ** from the stream. If you don't want to write the source anchor hyperdoc
1457: ** then you can register your own callback function that can get the data
1458: ** you want.
1459: */
1460: PUBLIC int HTUpload_callback (HTRequest * request, HTStream * target)
1461: {
1.115 eric 1462: if (WWWTRACE) HTTrace("Uploading... from callback function\n");
1.111 frystyk 1463: if (!request || !request->source_anchor || !target) return HT_ERROR;
1464: {
1465: int status;
1466: HTParentAnchor * source = request->source_anchor;
1467: char * document = (char *) HTAnchor_document(request->source_anchor);
1468: int len = HTAnchor_length(source);
1469: if (len < 0) {
1470: len = strlen(document);
1471: HTAnchor_setLength(source, len);
1472: }
1473: status = (*target->isa->put_block)(target, document, len);
1474: if (status == HT_OK)
1475: return (*target->isa->flush)(target);
1476: if (status == HT_WOULD_BLOCK) {
1.115 eric 1477: if (PROT_TRACE)HTTrace("POST Anchor. Target WOULD BLOCK\n");
1.111 frystyk 1478: return HT_WOULD_BLOCK;
1479: } else if (status == HT_PAUSE) {
1.115 eric 1480: if (PROT_TRACE) HTTrace("POST Anchor. Target PAUSED\n");
1.111 frystyk 1481: return HT_PAUSE;
1482: } else if (status > 0) { /* Stream specific return code */
1483: if (PROT_TRACE)
1.115 eric 1484: HTTrace("POST Anchor. Target returns %d\n", status);
1.111 frystyk 1485: return status;
1.120 eric 1486: } else { /* we have a real error */
1.115 eric 1487: if (PROT_TRACE) HTTrace("POST Anchor. Target ERROR\n");
1.111 frystyk 1488: return status;
1489: }
1.70 frystyk 1490: }
1.123 frystyk 1491: }
1492:
1493: /* ------------------------------------------------------------------------- */
1494: /* HEAD METHOD */
1495: /* ------------------------------------------------------------------------- */
1496:
1497: /* Request metainformation about a document from absolute name
1498: ** -----------------------------------------------------------
1499: ** Request a document referencd by an absolute URL.
1500: ** Returns YES if request accepted, else NO
1501: */
1502: PUBLIC BOOL HTHeadAbsolute (const char * url, HTRequest * request)
1503: {
1504: if (url && request) {
1505: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1506: return HTHeadAnchor(anchor, request);
1.123 frystyk 1507: }
1508: return NO;
1509: }
1510:
1511: /* Request metainformation about a document from relative name
1512: ** -----------------------------------------------------------
1513: ** Request a document referenced by a relative URL. The relative URL is
1514: ** made absolute by resolving it relative to the address of the 'base'
1515: ** anchor.
1516: ** Returns YES if request accepted, else NO
1517: */
1518: PUBLIC BOOL HTHeadRelative (const char * relative,
1519: HTParentAnchor * base,
1520: HTRequest * request)
1521: {
1522: BOOL status = NO;
1523: if (relative && base && request) {
1524: char * rel = NULL;
1525: char * full_url = NULL;
1526: char * base_url = HTAnchor_address((HTAnchor *) base);
1527: StrAllocCopy(rel, relative);
1528: full_url = HTParse(HTStrip(rel), base_url,
1529: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1530: status = HTHeadAbsolute(full_url, request);
1.123 frystyk 1531: HT_FREE(rel);
1532: HT_FREE(full_url);
1533: HT_FREE(base_url);
1534: }
1535: return status;
1536: }
1537:
1538: /* Request metainformation about an anchor
1539: ** --------------------------------------
1540: ** Request the document referenced by the anchor
1541: ** Returns YES if request accepted, else NO
1542: */
1543: PUBLIC BOOL HTHeadAnchor (HTAnchor * anchor, HTRequest * request)
1544: {
1545: if (anchor && request) {
1546: HTRequest_setAnchor(request, anchor);
1547: HTRequest_setMethod(request, METHOD_HEAD);
1.124 frystyk 1548: return launch_request(request, NO);
1.123 frystyk 1549: }
1550: return NO;
1551: }
1552:
1553: /* ------------------------------------------------------------------------- */
1554: /* DELETE METHOD */
1555: /* ------------------------------------------------------------------------- */
1556:
1557: /* Delete a document on a remote server
1558: ** ------------------------------------
1559: ** Request a document referencd by an absolute URL.
1560: ** Returns YES if request accepted, else NO
1561: */
1562: PUBLIC BOOL HTDeleteAbsolute (const char * url, HTRequest * request)
1563: {
1564: if (url && request) {
1565: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1566: return HTDeleteAnchor(anchor, request);
1.123 frystyk 1567: }
1568: return NO;
1569: }
1570:
1571: /* Request metainformation about a document from relative name
1572: ** -----------------------------------------------------------
1573: ** Request a document referenced by a relative URL. The relative URL is
1574: ** made absolute by resolving it relative to the address of the 'base'
1575: ** anchor.
1576: ** Returns YES if request accepted, else NO
1577: */
1578: PUBLIC BOOL HTDeleteRelative (const char * relative,
1579: HTParentAnchor * base,
1580: HTRequest * request)
1581: {
1582: BOOL status = NO;
1583: if (relative && base && request) {
1584: char * rel = NULL;
1585: char * full_url = NULL;
1586: char * base_url = HTAnchor_address((HTAnchor *) base);
1587: StrAllocCopy(rel, relative);
1588: full_url = HTParse(HTStrip(rel), base_url,
1589: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1590: status = HTDeleteAbsolute(full_url, request);
1.123 frystyk 1591: HT_FREE(rel);
1592: HT_FREE(full_url);
1593: HT_FREE(base_url);
1594: }
1595: return status;
1596: }
1597:
1598: /* Request metainformation about an anchor
1599: ** --------------------------------------
1600: ** Request the document referenced by the anchor
1601: ** Returns YES if request accepted, else NO
1602: */
1603: PUBLIC BOOL HTDeleteAnchor (HTAnchor * anchor, HTRequest * request)
1604: {
1605: if (anchor && request) {
1606: HTRequest_setAnchor(request, anchor);
1607: HTRequest_setMethod(request, METHOD_DELETE);
1.124 frystyk 1608: return launch_request(request, NO);
1609: }
1610: return NO;
1611: }
1612:
1613: /* ------------------------------------------------------------------------- */
1614: /* OPTIONS METHOD */
1615: /* ------------------------------------------------------------------------- */
1616:
1617: /* Options availeble for document from absolute name
1618: ** -------------------------------------------------
1619: ** Request a document referencd by an absolute URL.
1620: ** Returns YES if request accepted, else NO
1621: */
1622: PUBLIC BOOL HTOptionsAbsolute (const char * url, HTRequest * request)
1623: {
1624: if (url && request) {
1625: HTAnchor * anchor = HTAnchor_findAddress(url);
1626: return HTOptionsAnchor(anchor, request);
1627: }
1628: return NO;
1629: }
1630:
1631: /* Options available for document from relative name
1632: ** -------------------------------------------------
1633: ** Request a document referenced by a relative URL. The relative URL is
1634: ** made absolute by resolving it relative to the address of the 'base'
1635: ** anchor.
1636: ** Returns YES if request accepted, else NO
1637: */
1638: PUBLIC BOOL HTOptionsRelative (const char * relative,
1639: HTParentAnchor * base,
1640: HTRequest * request)
1641: {
1642: BOOL status = NO;
1643: if (relative && base && request) {
1644: char * rel = NULL;
1645: char * full_url = NULL;
1646: char * base_url = HTAnchor_address((HTAnchor *) base);
1647: StrAllocCopy(rel, relative);
1648: full_url = HTParse(HTStrip(rel), base_url,
1649: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1650: status = HTOptionsAbsolute(full_url, request);
1651: HT_FREE(rel);
1652: HT_FREE(full_url);
1653: HT_FREE(base_url);
1654: }
1655: return status;
1656: }
1657:
1658: /* Options available for document using Anchor
1659: ** -------------------------------------------
1660: ** Request the document referenced by the anchor
1661: ** Returns YES if request accepted, else NO
1662: */
1663: PUBLIC BOOL HTOptionsAnchor (HTAnchor * anchor, HTRequest * request)
1664: {
1665: if (anchor && request) {
1666: HTRequest_setAnchor(request, anchor);
1667: HTRequest_setMethod(request, METHOD_OPTIONS);
1668: return launch_request(request, NO);
1.123 frystyk 1669: }
1670: return NO;
1.1 timbl 1671: }
1.127 frystyk 1672:
1673: /* ------------------------------------------------------------------------- */
1674: /* TRACE METHOD */
1675: /* ------------------------------------------------------------------------- */
1676:
1677: /* Traces available for document from absolute name
1678: ** ------------------------------------------------
1679: ** Request a document referencd by an absolute URL.
1680: ** Returns YES if request accepted, else NO
1681: */
1682: PUBLIC BOOL HTTraceAbsolute (const char * url, HTRequest * request)
1683: {
1684: if (url && request) {
1685: HTAnchor * anchor = HTAnchor_findAddress(url);
1686: return HTTraceAnchor(anchor, request);
1687: }
1688: return NO;
1689: }
1690:
1691: /* Traces available for document from relative name
1692: ** ------------------------------------------------
1693: ** Request a document referenced by a relative URL. The relative URL is
1694: ** made absolute by resolving it relative to the address of the 'base'
1695: ** anchor.
1696: ** Returns YES if request accepted, else NO
1697: */
1698: PUBLIC BOOL HTTraceRelative (const char * relative,
1699: HTParentAnchor * base,
1700: HTRequest * request)
1701: {
1702: BOOL status = NO;
1703: if (relative && base && request) {
1704: char * rel = NULL;
1705: char * full_url = NULL;
1706: char * base_url = HTAnchor_address((HTAnchor *) base);
1707: StrAllocCopy(rel, relative);
1708: full_url = HTParse(HTStrip(rel), base_url,
1709: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1710: status = HTTraceAbsolute(full_url, request);
1711: HT_FREE(rel);
1712: HT_FREE(full_url);
1713: HT_FREE(base_url);
1714: }
1715: return status;
1716: }
1717:
1718: /* Trace available for document using Anchor
1719: ** -------------------------------------------
1720: ** Request the document referenced by the anchor
1721: ** Returns YES if request accepted, else NO
1722: */
1723: PUBLIC BOOL HTTraceAnchor (HTAnchor * anchor, HTRequest * request)
1724: {
1725: if (anchor && request) {
1726: HTRequest_setAnchor(request, anchor);
1727: HTRequest_setMethod(request, METHOD_TRACE);
1728: return launch_request(request, NO);
1729: }
1730: return NO;
1731: }
1732:
Webmaster
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to HTAccess.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Public] / libwww / Library / src