Annotation of libwww/Library/src/HTAccess.c, revision 1.139
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.
1.139 ! frystyk 6: ** @(#) $Id: HTAccess.c,v 1.138 1997/11/26 16:05:12 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));
164: return HTLoadAbsolute(url, request);
165: }
166: return NO;
1.90 frystyk 167: }
168:
1.122 frystyk 169: /*
170: ** Load a URL to a mem buffer
171: ** --------------------------
172: ** Load a request and store the result in a memory buffer.
173: ** Returns chunk if OK - else NULL
174: */
175: PUBLIC HTChunk * HTLoadToChunk (const char * url, HTRequest * request)
176: {
177: if (url && request) {
178: HTChunk * chunk = NULL;
179: HTStream * target = HTStreamToChunk(request, &chunk, 0);
180: HTAnchor * anchor = HTAnchor_findAddress(url);
181: HTRequest_setAnchor(request, anchor);
182: HTRequest_setOutputStream(request, target);
1.124 frystyk 183: if (launch_request(request, NO) == YES)
1.122 frystyk 184: return chunk;
185: else {
186: HTChunk_delete(chunk);
187: return NULL;
188: }
189: }
190: return NULL;
191: }
1.90 frystyk 192:
193: /* Request an anchor
194: ** -----------------
195: ** Request the document referenced by the anchor
196: ** Returns YES if request accepted, else NO
197: */
198: PUBLIC BOOL HTLoadAnchor (HTAnchor * anchor, HTRequest * request)
199: {
200: if (anchor && request) {
201: HTRequest_setAnchor(request, anchor);
1.124 frystyk 202: return launch_request(request, NO);
1.90 frystyk 203: }
204: return NO;
205: }
206:
207: /* Request an anchor
208: ** -----------------
209: ** Same as HTLoadAnchor but any information in the Error Stack in the
210: ** request object is kept, so that any error messages in one
1.52 frystyk 211: ** This function is almost identical to HTLoadAnchor, but it doesn't
212: ** clear the error stack so that the information in there is kept.
1.90 frystyk 213: ** Returns YES if request accepted, else NO
214: */
215: PUBLIC BOOL HTLoadAnchorRecursive (HTAnchor * anchor, HTRequest * request)
216: {
217: if (anchor && request) {
218: HTRequest_setAnchor(request, anchor);
1.124 frystyk 219: return launch_request(request, YES);
1.90 frystyk 220: }
221: return NO;
222: }
223:
1.122 frystyk 224: /*
225: ** Load a URL to a mem buffer
226: ** --------------------------
227: ** Load a request and store the result in a memory buffer.
228: ** Returns chunk if OK - else NULL
229: */
230: PUBLIC HTChunk * HTLoadAnchorToChunk (HTAnchor * anchor, HTRequest * request)
231: {
1.124 frystyk 232: HTChunk * chunk = NULL;
1.122 frystyk 233: if (anchor && request) {
234: HTStream * target = HTStreamToChunk(request, &chunk, 0);
235: HTRequest_setAnchor(request, anchor);
236: HTRequest_setOutputStream(request, target);
1.124 frystyk 237: if (launch_request(request, NO) == YES)
1.122 frystyk 238: return chunk;
239: else {
240: HTChunk_delete(chunk);
241: return NULL;
242: }
243: }
244: return NULL;
245: }
1.90 frystyk 246:
1.123 frystyk 247: /*
248: ** Load a Rule File
249: ** ----------------
250: ** Load a rule find with the URL specified and add the set of rules to
251: ** the existing set.
252: */
253: PUBLIC BOOL HTLoadRules (const char * url)
254: {
255: BOOL status = NO;
256: if (url) {
257: HTList * list = HTList_new();
258: HTRequest * request = HTRequest_new();
259: HTRequest_setPreemptive(request, YES);
1.137 frystyk 260:
261: /*
262: ** We do only accept a new rules files when we are in interactive
263: ** mode and can ask the user for it. If HT_AUTOMATIC_RULES is
264: ** defined then we accept new rules files without explicit ack
265: ** from the user
266: */
267: #ifdef HT_AUTOMATIC_RULES
1.123 frystyk 268: HTAlert_setInteractive(NO);
1.137 frystyk 269: #endif
270:
271: /*
272: ** Add the rules parsing stream for this particular request only.
273: ** That is, we only accept a rules file when we have explicitly
274: ** asked for it using this function.
275: */
1.123 frystyk 276: HTConversion_add(list, "application/x-www-rules", "*/*", HTRules,
277: 1.0, 0.0, 0.0);
278: HTRequest_setConversion(request, list, YES);
279: status = HTLoadAbsolute(url, request);
280: HTConversion_deleteAll(list);
281: HTRequest_delete(request);
282: }
283: return status;
284: }
285:
286: /* --------------------------------------------------------------------------*/
287: /* GET WITH KEYWORDS (SEARCH) */
288: /* --------------------------------------------------------------------------*/
289:
290: /*
291: ** This function creates a URL with a searh part as defined by RFC 1866
292: ** Both the baseurl and the keywords must be escaped.
293: **
294: ** 1. The form field names and values are escaped: space
295: ** characters are replaced by `+', and then reserved characters
296: ** are escaped as per [URL]; that is, non-alphanumeric
297: ** characters are replaced by `%HH', a percent sign and two
298: ** hexadecimal digits representing the ASCII code of the
299: ** character. Line breaks, as in multi-line text field values,
300: ** are represented as CR LF pairs, i.e. `%0D%0A'.
301: **
302: ** 2. The fields are listed in the order they appear in the
303: ** document with the name separated from the value by `=' and
304: ** the pairs separated from each other by `&'. Fields with null
305: ** values may be omitted. In particular, unselected radio
306: ** buttons and checkboxes should not appear in the encoded
307: ** data, but hidden fields with VALUE attributes present
308: ** should.
309: **
310: ** NOTE - The URI from a query form submission can be
311: ** used in a normal anchor style hyperlink.
312: ** Unfortunately, the use of the `&' character to
313: ** separate form fields interacts with its use in SGML
314: ** attribute values as an entity reference delimiter.
315: ** For example, the URI `http://host/?x=1&y=2' must be
316: ** written `<a href="http://host/?x=1&y=2"' or `<a
317: ** href="http://host/?x=1&y=2">'.
318: **
319: ** HTTP server implementors, and in particular, CGI
320: ** implementors are encouraged to support the use of
321: ** `;' in place of `&' to save users the trouble of
322: ** escaping `&' characters this way.
323: */
324: PRIVATE char * query_url_encode (const char * baseurl, HTChunk * keywords)
325: {
326: char * fullurl = NULL;
327: if (baseurl && keywords && HTChunk_size(keywords)) {
328: int len = strlen(baseurl);
329: fullurl = (char *) HT_MALLOC(len + HTChunk_size(keywords) + 2);
330: sprintf(fullurl, "%s?%s", baseurl, HTChunk_data(keywords));
331: {
332: char * ptr = fullurl+len;
333: while (*ptr) {
334: if (*ptr == ' ') *ptr = '+';
335: ptr++;
336: }
337: }
338: }
339: return fullurl;
340: }
341:
342: PRIVATE char * form_url_encode (const char * baseurl, HTAssocList * formdata)
343: {
344: if (formdata) {
345: BOOL first = YES;
346: int cnt = HTList_count((HTList *) formdata);
347: HTChunk * fullurl = HTChunk_new(128);
348: HTAssoc * pres;
1.124 frystyk 349: if (baseurl) {
350: HTChunk_puts(fullurl, baseurl);
351: HTChunk_putc(fullurl, '?');
352: }
1.123 frystyk 353: while (cnt > 0) {
354: pres = (HTAssoc *) HTList_objectAt((HTList *) formdata, --cnt);
355: if (first)
356: first = NO;
357: else
358: HTChunk_putc(fullurl, '&'); /* Could use ';' instead */
359: HTChunk_puts(fullurl, HTAssoc_name(pres));
360: HTChunk_putc(fullurl, '=');
361: HTChunk_puts(fullurl, HTAssoc_value(pres));
362: }
363: return HTChunk_toCString(fullurl);
364: }
365: return NULL;
366: }
367:
368: /* Search a document from absolute name
369: ** ------------------------------------
370: ** Request a document referencd by an absolute URL appended with the
371: ** keywords given. The URL can NOT contain any fragment identifier!
372: ** The list of keywords must be a space-separated list and spaces will
373: ** be converted to '+' before the request is issued.
374: ** Returns YES if request accepted, else NO
375: */
376: PUBLIC BOOL HTSearchAbsolute (HTChunk * keywords,
377: const char * base,
378: HTRequest * request)
379: {
380: if (keywords && base && request) {
381: char * full = query_url_encode(base, keywords);
382: if (full) {
383: HTAnchor * anchor = HTAnchor_findAddress(full);
384: HTRequest_setAnchor(request, anchor);
385: HT_FREE(full);
1.124 frystyk 386: return launch_request(request, NO);
1.123 frystyk 387: }
388: }
389: return NO;
390: }
391:
392: /* Search a document from relative name
393: ** -------------------------------------
394: ** Request a document referenced by a relative URL. The relative URL is
395: ** made absolute by resolving it relative to the address of the 'base'
396: ** anchor.
397: ** Returns YES if request accepted, else NO
398: */
399: PUBLIC BOOL HTSearchRelative (HTChunk * keywords,
400: const char * relative,
401: HTParentAnchor * base,
402: HTRequest * request)
403: {
404: BOOL status = NO;
405: if (keywords && relative && base && request) {
406: char * full_url = NULL;
407: char * base_url = HTAnchor_address((HTAnchor *) base);
408: full_url = HTParse(relative, base_url,
409: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
410: status = HTSearchAbsolute(keywords, full_url, request);
411: HT_FREE(full_url);
412: HT_FREE(base_url);
413: }
414: return status;
415: }
416:
417: /*
418: ** Search a string
419: ** ---------------
420: ** This is the same as HTSearchAbsolute but instead of using a chunk
421: ** you can pass a string.
422: */
423: PUBLIC BOOL HTSearchString (const char * keywords,
424: HTAnchor * anchor,
425: HTRequest * request)
426: {
427: BOOL status = NO;
428: if (keywords && anchor && request) {
429: char * base_url = HTAnchor_address((HTAnchor *) anchor);
430: HTChunk * chunk = HTChunk_new(strlen(keywords)+2);
431: HTChunk_puts(chunk, keywords);
432: status = HTSearchAbsolute(chunk, base_url, request);
433: HT_FREE(base_url);
434: HTChunk_delete(chunk);
435: }
436: return status;
437: }
438:
1.90 frystyk 439: /* Search an Anchor
440: ** ----------------
441: ** Performs a keyword search on word given by the user. Adds the keyword
442: ** to the end of the current address and attempts to open the new address.
443: ** The list of keywords must be a space-separated list and spaces will
444: ** be converted to '+' before the request is issued.
445: ** Search can also be performed by HTLoadAbsolute() etc.
446: ** Returns YES if request accepted, else NO
447: */
1.123 frystyk 448: PUBLIC BOOL HTSearchAnchor (HTChunk * keywords,
449: HTAnchor * anchor,
450: HTRequest * request)
1.90 frystyk 451: {
1.99 frystyk 452: BOOL status = NO;
1.123 frystyk 453: if (keywords && anchor && request) {
454: char * base_url = HTAnchor_address(anchor);
455: status = HTSearchAbsolute(keywords, base_url, request);
1.114 frystyk 456: HT_FREE(base_url);
1.90 frystyk 457: }
1.99 frystyk 458: return status;
1.2 timbl 459: }
460:
1.123 frystyk 461: /* --------------------------------------------------------------------------*/
462: /* HANDLING FORMS USING GET AND POST */
463: /* --------------------------------------------------------------------------*/
1.2 timbl 464:
1.123 frystyk 465: /* Send a Form request using GET from absolute name
466: ** ------------------------------------------------
1.90 frystyk 467: ** Request a document referencd by an absolute URL appended with the
1.123 frystyk 468: ** formdata given. The URL can NOT contain any fragment identifier!
469: ** The list of form data must be given as an association list where
470: ** the name is the field name and the value is the value of the field.
471: ** Returns YES if request accepted, else NO
472: */
473: PUBLIC BOOL HTGetFormAbsolute (HTAssocList * formdata,
474: const char * base,
475: HTRequest * request)
476: {
477: if (formdata && base && request) {
478: char * full = form_url_encode(base, formdata);
479: if (full) {
480: HTAnchor * anchor = HTAnchor_findAddress(full);
481: HTRequest_setAnchor(request, anchor);
482: HT_FREE(full);
1.124 frystyk 483: return launch_request(request, NO);
1.123 frystyk 484: }
485: }
486: return NO;
487: }
488:
489: /* Send a Form request using GET from relative name
490: ** ------------------------------------------------
491: ** Request a document referencd by a relative URL appended with the
492: ** formdata given. The URL can NOT contain any fragment identifier!
493: ** The list of form data must be given as an association list where
494: ** the name is the field name and the value is the value of the field.
495: ** Returns YES if request accepted, else NO
496: */
497: PUBLIC BOOL HTGetFormRelative (HTAssocList * formdata,
498: const char * relative,
499: HTParentAnchor * base,
500: HTRequest * request)
501: {
502: BOOL status = NO;
503: if (formdata && relative && base && request) {
504: char * full_url = NULL;
505: char * base_url = HTAnchor_address((HTAnchor *) base);
506: full_url=HTParse(relative, base_url,
507: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
508: status = HTGetFormAbsolute(formdata, full_url, request);
509: HT_FREE(full_url);
510: HT_FREE(base_url);
511: }
512: return status;
513: }
514:
515: /* Send a Form request using GET from an anchor
516: ** --------------------------------------------
517: ** Request a document referencd by an anchor object appended with the
518: ** formdata given. The URL can NOT contain any fragment identifier!
519: ** The list of form data must be given as an association list where
520: ** the name is the field name and the value is the value of the field.
1.90 frystyk 521: ** Returns YES if request accepted, else NO
522: */
1.123 frystyk 523: PUBLIC BOOL HTGetFormAnchor (HTAssocList * formdata,
524: HTAnchor * anchor,
525: HTRequest * request)
526: {
527: BOOL status = NO;
528: if (formdata && anchor && request) {
529: char * base_url = HTAnchor_address((HTAnchor *) anchor);
530: status = HTGetFormAbsolute(formdata, base_url, request);
531: HT_FREE(base_url);
532: }
533: return status;
534: }
535:
536: PRIVATE int HTEntity_callback (HTRequest * request, HTStream * target)
537: {
538: HTParentAnchor * entity = HTRequest_entityAnchor(request);
1.124 frystyk 539: if (WWWTRACE) HTTrace("Posting Data from callback function\n");
1.123 frystyk 540: if (!request || !entity || !target) return HT_ERROR;
541: {
1.126 frystyk 542: BOOL chunking = NO;
1.123 frystyk 543: int status;
544: char * document = (char *) HTAnchor_document(entity);
545: int len = HTAnchor_length(entity);
1.126 frystyk 546: if (!document) {
547: if (PROT_TRACE) HTTrace("Posting Data No document\n");
548: return HT_ERROR;
549: }
550:
551: /*
552: ** If the length is unknown (-1) then see if the document is a text
553: ** type and in that case take the strlen. If not then we don't know
554: ** how much data we can write and must stop
555: */
556: if (len < 0) {
557: HTFormat actual = HTAnchor_format(entity);
558: HTFormat tmplate = HTAtom_for("text/*");
559: if (HTMIMEMatch(tmplate, actual)) {
560: len = strlen(document); /* Naive! */
561: chunking = YES;
562: } else {
563: if (PROT_TRACE)
564: HTTrace("Posting Data Must know the length of document %p\n",
565: document);
566: return HT_ERROR;
567: }
568: }
569:
570: /* Send the data down the pipe */
1.123 frystyk 571: status = (*target->isa->put_block)(target, document, len);
572: if (status == HT_WOULD_BLOCK) {
1.124 frystyk 573: if (PROT_TRACE)HTTrace("Posting Data Target WOULD BLOCK\n");
1.123 frystyk 574: return HT_WOULD_BLOCK;
575: } else if (status == HT_PAUSE) {
1.126 frystyk 576: if (PROT_TRACE) HTTrace("Posting Data Target PAUSED\n");
1.123 frystyk 577: return HT_PAUSE;
1.126 frystyk 578: } else if (chunking && status == HT_OK) {
579: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED using chunked\n");
580: return (*target->isa->put_block)(target, "", 0);
1.136 frystyk 581: } else if (status == HT_LOADED || status == HT_OK) {
582: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED\n");
583: (*target->isa->flush)(target);
584: return HT_LOADED;
585: } else if (status > 0) { /* Stream specific return code */
586: if (PROT_TRACE) HTTrace("Posting Data. Target returns %d\n", status);
1.123 frystyk 587: return status;
588: } else { /* we have a real error */
1.129 frystyk 589: if (PROT_TRACE) HTTrace("Posting Data Target ERROR %d\n", status);
1.123 frystyk 590: return status;
591: }
592: }
593: }
594:
595: /* Send a Form request using POST from absolute name
596: ** -------------------------------------------------
597: ** Request a document referencd by an absolute URL appended with the
598: ** formdata given. The URL can NOT contain any fragment identifier!
599: ** The list of form data must be given as an association list where
600: ** the name is the field name and the value is the value of the field.
601: */
602: PUBLIC HTParentAnchor * HTPostFormAbsolute (HTAssocList * formdata,
603: const char * base,
604: HTRequest * request)
605: {
606: if (formdata && base && request) {
607: HTAnchor * anchor = HTAnchor_findAddress(base);
608: return HTPostFormAnchor(formdata, anchor, request);
609: }
610: return NULL;
611: }
612:
613: /* Send a Form request using POST from relative name
614: ** -------------------------------------------------
615: ** Request a document referencd by a relative URL appended with the
616: ** formdata given. The URL can NOT contain any fragment identifier!
617: ** The list of form data must be given as an association list where
618: ** the name is the field name and the value is the value of the field.
619: */
620: PUBLIC HTParentAnchor * HTPostFormRelative (HTAssocList * formdata,
621: const char * relative,
622: HTParentAnchor * base,
623: HTRequest * request)
1.90 frystyk 624: {
1.123 frystyk 625: HTParentAnchor * postanchor = NULL;
626: if (formdata && relative && base && request) {
627: char * full_url = NULL;
628: char * base_url = HTAnchor_address((HTAnchor *) base);
629: full_url=HTParse(relative, base_url,
630: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
631: postanchor = HTPostFormAbsolute(formdata, full_url, request);
632: HT_FREE(full_url);
633: HT_FREE(base_url);
634: }
635: return postanchor;
636: }
637:
638: /* Send a Form request using POST from an anchor
639: ** ---------------------------------------------
640: ** Request a document referencd by an anchor object appended with the
641: ** formdata given. The URL can NOT contain any fragment identifier!
642: ** The list of form data must be given as an association list where
643: ** the name is the field name and the value is the value of the field.
644: */
645: PUBLIC HTParentAnchor * HTPostFormAnchor (HTAssocList * formdata,
646: HTAnchor * anchor,
647: HTRequest * request)
648: {
649: HTParentAnchor * postanchor = NULL;
650: if (formdata && anchor && request) {
651: HTUserProfile * up = HTRequest_userProfile(request);
652: char * tmpfile = HTGetTmpFileName(HTUserProfile_tmp(up));
653: char * tmpurl = HTParse(tmpfile, "file:", PARSE_ALL);
654: char * form_encoded = form_url_encode(NULL, formdata);
655: if (form_encoded) {
656:
657: /*
658: ** Now create a new anchor for the post data and set up
659: ** the rest of the metainformation we know about this anchor. The
660: ** tmp anchor may actually already exist from previous postings.
661: */
662: postanchor = (HTParentAnchor *) HTAnchor_findAddress(tmpurl);
663: HTAnchor_clearHeader(postanchor);
664: HTAnchor_setDocument(postanchor, form_encoded);
665: HTAnchor_setLength(postanchor, strlen(form_encoded));
666: HTAnchor_setFormat(postanchor, WWW_FORM);
667:
668: /*
669: ** Bind the temporary anchor to the anchor that will contain the
670: ** response
671: */
672: HTLink_removeAll((HTAnchor *) postanchor);
673: HTLink_add((HTAnchor *) postanchor, (HTAnchor *) anchor,
674: NULL, METHOD_POST);
675:
676: /* Set up the request object */
677: HTRequest_addGnHd(request, HT_G_DATE); /* Send date header */
678: HTRequest_setAnchor(request, anchor);
679: HTRequest_setEntityAnchor(request, postanchor);
680: HTRequest_setMethod(request, METHOD_POST);
681:
682: /* Add the post form callback function to provide the form data */
683: HTRequest_setPostCallback(request, HTEntity_callback);
684:
685: /* Now start the load normally */
1.124 frystyk 686: launch_request(request, NO);
1.123 frystyk 687: }
688: HT_FREE(tmpfile);
689: HT_FREE(tmpurl);
1.90 frystyk 690: }
1.123 frystyk 691: return postanchor;
1.57 howcome 692: }
693:
1.70 frystyk 694: /* --------------------------------------------------------------------------*/
1.124 frystyk 695: /* PUT A DOCUMENT */
696: /* --------------------------------------------------------------------------*/
1.125 frystyk 697: PRIVATE BOOL setup_anchors (HTRequest * request,
1.131 frystyk 698: HTParentAnchor * source, HTParentAnchor * dest,
699: HTMethod method)
1.124 frystyk 700: {
1.131 frystyk 701: if (!(method & (METHOD_PUT | METHOD_POST))) {
702: if (APP_TRACE) HTTrace("Posting..... Bad method\n");
703: return NO;
704: }
705:
1.124 frystyk 706: /*
1.127 frystyk 707: ** Check whether we know if it is possible to PUT to this destination.
708: ** We both check the local set of allowed methods in the anchor and any
709: ** site information that we may have about the location of the origin
710: ** server.
1.124 frystyk 711: */
712: {
1.131 frystyk 713: char * addr = HTAnchor_address((HTAnchor *) source);
714: char * hostname = HTParse(addr, "", PARSE_HOST);
715: HTHost * host = HTHost_find(hostname);
716: HTMethod public_methods = HTHost_publicMethods(host);
1.134 frystyk 717: HTMethod private_methods = HTAnchor_allow(dest);
1.131 frystyk 718: HT_FREE(hostname);
719: HT_FREE(addr);
720: if (!(method & (private_methods | public_methods))) {
1.124 frystyk 721: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
722: if (prompt) {
723: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_METHOD,
724: NULL, NULL, NULL) != YES)
725: return NO;
726: }
727: }
728: }
729:
730: /*
731: ** Bind the source anchor to the dest anchor that will contain the
732: ** response. If link already exists then ask is we should do it again.
733: ** If so then remove the old link and replace it with a new one.
734: */
735: {
736: HTLink *link = HTLink_find((HTAnchor *) source, (HTAnchor *) dest);
737: if (link && HTLink_method(link) == METHOD_PUT) {
738: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
739: if (prompt) {
740: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_REDO,
741: NULL, NULL, NULL) != YES)
742: return NO;
743: }
744: HTLink_remove((HTAnchor *) source, (HTAnchor *) dest);
745: }
746: HTLink_add((HTAnchor*) source, (HTAnchor*) dest, NULL, METHOD_PUT);
747: }
748: return YES;
749: }
750:
751: /* Send an Anchor using PUT from absolute name
752: ** -------------------------------------------
753: ** Upload a document referenced by an absolute URL appended.
754: ** The URL can NOT contain any fragment identifier!
755: ** The list of form data must be given as an association list where
756: ** the name is the field name and the value is the value of the field.
757: */
758: PUBLIC BOOL HTPutAbsolute (HTParentAnchor * source,
759: const char * destination,
760: HTRequest * request)
761: {
762: if (source && destination && request) {
763: HTAnchor * dest = HTAnchor_findAddress(destination);
764: return HTPutAnchor(source, dest, request);
765: }
766: return NO;
767: }
768:
769: /* Send an Anchor using PUT from relative name
770: ** -------------------------------------------
771: ** Upload a document referenced by a relative URL appended.
772: ** The URL can NOT contain any fragment identifier!
773: ** The list of form data must be given as an association list where
774: ** the name is the field name and the value is the value of the field.
775: */
776: PUBLIC BOOL HTPutRelative (HTParentAnchor * source,
777: const char * relative,
778: HTParentAnchor * destination_base,
779: HTRequest * request)
780: {
781: if (source && relative && destination_base && request) {
782: BOOL status;
783: char * full_url = NULL;
784: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
785: full_url=HTParse(relative, base_url,
786: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
787: status = HTPutAbsolute(source, full_url, request);
788: HT_FREE(full_url);
789: HT_FREE(base_url);
790: return status;
791: }
792: return NO;
793: }
794:
795: /* Send an Anchor using PUT from an anchor
796: ** ---------------------------------------
797: ** Upload a document referenced by an anchor object appended
798: ** The URL can NOT contain any fragment identifier!
799: ** The list of form data must be given as an association list where
800: ** the name is the field name and the value is the value of the field.
801: */
802: PUBLIC BOOL HTPutAnchor (HTParentAnchor * source,
803: HTAnchor * destination,
804: HTRequest * request)
805: {
806: HTParentAnchor * dest = HTAnchor_parent(destination);
807: if (source && dest && request) {
1.131 frystyk 808: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 809:
810: /* Set up the request object */
811: HTRequest_addGnHd(request, HT_G_DATE);
1.133 frystyk 812: HTRequest_addRqHd(request, HT_C_IF_MATCH);
1.124 frystyk 813: HTRequest_setEntityAnchor(request, source);
814: HTRequest_setMethod(request, METHOD_PUT);
815: HTRequest_setAnchor(request, destination);
816:
817: /* Add the entity callback function to provide the form data */
818: HTRequest_setPostCallback(request, HTEntity_callback);
819:
820: /* Now start the load normally */
821: return launch_request(request, NO);
822: }
823: }
824: return NO;
825: }
826:
1.125 frystyk 827: /* Send an Anchor using POST from absolute name
828: ** -------------------------------------------
829: ** Upload a document referenced by an absolute URL appended.
830: ** The URL can NOT contain any fragment identifier!
831: ** The list of form data must be given as an association list where
832: ** the name is the field name and the value is the value of the field.
833: */
834: PUBLIC BOOL HTPostAbsolute (HTParentAnchor * source,
835: const char * destination,
836: HTRequest * request)
837: {
838: if (source && destination && request) {
839: HTAnchor * dest = HTAnchor_findAddress(destination);
840: return HTPostAnchor(source, dest, request);
841: }
842: return NO;
843: }
844:
845: /* Send an Anchor using POST from relative name
846: ** -------------------------------------------
847: ** Upload a document referenced by a relative URL appended.
848: ** The URL can NOT contain any fragment identifier!
849: ** The list of form data must be given as an association list where
850: ** the name is the field name and the value is the value of the field.
851: */
852: PUBLIC BOOL HTPostRelative (HTParentAnchor * source,
853: const char * relative,
854: HTParentAnchor * destination_base,
855: HTRequest * request)
856: {
857: if (source && relative && destination_base && request) {
858: BOOL status;
859: char * full_url = NULL;
860: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
861: full_url=HTParse(relative, base_url,
862: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
863: status = HTPostAbsolute(source, full_url, request);
864: HT_FREE(full_url);
865: HT_FREE(base_url);
866: return status;
867: }
868: return NO;
869: }
870:
871: /* Send an Anchor using POST from an anchor
872: ** ---------------------------------------
873: ** Upload a document referenced by an anchor object appended
874: ** The URL can NOT contain any fragment identifier!
875: ** The list of form data must be given as an association list where
876: ** the name is the field name and the value is the value of the field.
877: */
878: PUBLIC BOOL HTPostAnchor (HTParentAnchor * source,
879: HTAnchor * destination,
880: HTRequest * request)
881: {
882: HTParentAnchor * dest = HTAnchor_parent(destination);
883: if (source && dest && request) {
1.131 frystyk 884: if (setup_anchors(request, source, dest, METHOD_POST) == YES) {
1.125 frystyk 885:
886: /* Set up the request object */
887: HTRequest_addGnHd(request, HT_G_DATE);
888: HTRequest_setEntityAnchor(request, source);
889: HTRequest_setMethod(request, METHOD_POST);
890: HTRequest_setAnchor(request, destination);
891:
892: /* Add the entity callback function to provide the form data */
893: HTRequest_setPostCallback(request, HTEntity_callback);
894:
895: /* Now start the load normally */
896: return launch_request(request, NO);
897: }
898: }
899: return NO;
900: }
901:
1.124 frystyk 902: /* Send an Anchor using PUT from absolute name
903: ** -------------------------------------------
904: ** Upload a document referenced by an absolute URL appended.
905: ** The URL can NOT contain any fragment identifier!
906: ** The list of form data must be given as an association list where
907: ** the name is the field name and the value is the value of the field.
908: */
909: PUBLIC BOOL HTPutStructuredAbsolute (HTParentAnchor * source,
910: const char * destination,
911: HTRequest * request,
912: HTPostCallback * input)
913: {
914: if (source && destination && request && input) {
915: HTAnchor * dest = HTAnchor_findAddress(destination);
916: return HTPutStructuredAnchor(source, dest, request, input);
917: }
918: return NO;
919: }
920:
921: /* Send an Anchor using PUT from relative name
922: ** -------------------------------------------
923: ** Upload a document referenced by a relative URL appended.
924: ** The URL can NOT contain any fragment identifier!
925: ** The list of form data must be given as an association list where
926: ** the name is the field name and the value is the value of the field.
927: */
928: PUBLIC BOOL HTPutStructuredRelative (HTParentAnchor * source,
929: const char * relative,
930: HTParentAnchor * destination_base,
931: HTRequest * request,
932: HTPostCallback * input)
933: {
934: if (source && relative && destination_base && request && input) {
935: BOOL status;
936: char * full_url = NULL;
937: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
938: full_url=HTParse(relative, base_url,
939: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
940: status = HTPutStructuredAbsolute(source, full_url, request, input);
941: HT_FREE(full_url);
942: HT_FREE(base_url);
943: return status;
944: }
945: return NO;
946: }
947:
948: /* Send an Anchor using PUT from an anchor
949: ** ---------------------------------------
950: ** Upload a document referenced by an anchor object 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 HTPutStructuredAnchor (HTParentAnchor * source,
956: HTAnchor * destination,
957: HTRequest * request,
958: HTPostCallback * input)
959: {
960: HTParentAnchor * dest = HTAnchor_parent(destination);
961: if (source && dest && request) {
1.131 frystyk 962: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 963:
964: /* Set up the request object */
965: HTRequest_addGnHd(request, HT_G_DATE);
1.133 frystyk 966: HTRequest_addRqHd(request, HT_C_IF_MATCH);
1.124 frystyk 967: HTRequest_setEntityAnchor(request, source);
968: HTRequest_setMethod(request, METHOD_PUT);
969: HTRequest_setAnchor(request, destination);
970:
971: /* Add the entity callback function to provide the form data */
972: HTRequest_setPostCallback(request, input);
973:
974: /* Now start the load normally */
975: return launch_request(request, NO);
976: }
977: }
978: return NO;
979: }
980:
981: /*
982: ** After filter for handling PUT of document. We should now have the
983: */
1.134 frystyk 984: PRIVATE int HTSaveFilter (HTRequest * request, HTResponse * response,
985: void * param, int status)
1.124 frystyk 986: {
987: HTPutContext * me = (HTPutContext *) param;
988: if (APP_TRACE)
989: HTTrace("Save Filter. Using context %p with state %c\n",
990: me, me->state+0x30);
991:
992: /*
1.125 frystyk 993: ** Just ignore authentication in the hope that some other filter will
994: ** handle this.
995: */
1.138 frystyk 996: if (status == HT_NO_ACCESS || status == HT_NO_PROXY_ACCESS ||
997: status == HT_REAUTH || status == HT_PROXY_REAUTH) {
1.125 frystyk 998: if (APP_TRACE) HTTrace("Save Filter. Waiting for authentication\n");
999: return HT_OK;
1000: }
1001:
1002: /*
1.124 frystyk 1003: ** If either the source or the destination has moved then ask the user
1004: ** what to do. If there is no user then stop
1005: */
1.138 frystyk 1006: if (status == HT_TEMP_REDIRECT || status == HT_PERM_REDIRECT ||
1007: status == HT_FOUND || status == HT_SEE_OTHER) {
1.124 frystyk 1008: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
1.134 frystyk 1009: HTAnchor * redirection = HTResponse_redirection(response);
1.124 frystyk 1010: if (prompt && redirection) {
1.125 frystyk 1011: if (me->state == HT_LOAD_SOURCE) {
1.124 frystyk 1012: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_SOURCE_MOVED,
1013: NULL, NULL, NULL) == YES) {
1014: me->source = HTAnchor_parent(redirection);
1.128 frystyk 1015: } else {
1016: /*
1017: ** Make sure that the operation stops
1018: */
1019: me->state = HT_ABORT_SAVE;
1.124 frystyk 1020: }
1021: } else {
1022: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_DESTINATION_MOVED,
1023: NULL, NULL, NULL) == YES) {
1024: me->destination = redirection;
1.128 frystyk 1025: } else {
1026: /*
1027: ** Make sure that the operation stops
1028: */
1029: me->state = HT_ABORT_SAVE;
1.124 frystyk 1030: }
1031: }
1032: }
1.128 frystyk 1033: return HT_OK;
1.124 frystyk 1034: }
1035:
1036: /*
1.125 frystyk 1037: ** If we succeeded getting the source then start the PUT itself. Otherwise
1038: ** cleanup the mess
1.124 frystyk 1039: */
1.125 frystyk 1040: if (me->state == HT_LOAD_SOURCE && status == HT_LOADED &&
1041: !HTError_hasSeverity(HTRequest_error(request), ERR_INFO)) {
1.124 frystyk 1042:
1043: /* Swap the document in the anchor with the new one */
1044: me->placeholder = HTAnchor_document(me->source);
1045: HTAnchor_setDocument(me->source, HTChunk_data(me->document));
1046:
1047: /* Set up the request object */
1048: HTRequest_addGnHd(request, HT_G_DATE);
1.133 frystyk 1049: HTRequest_addRqHd(request, HT_C_IF_MATCH);
1.124 frystyk 1050: HTRequest_setEntityAnchor(request, me->source);
1051: HTRequest_setMethod(request, METHOD_PUT);
1052: HTRequest_setAnchor(request, me->destination);
1053: HTRequest_setOutputFormat(request, me->format);
1054: HTRequest_setOutputStream(request, me->target);
1055:
1.139 ! frystyk 1056: /* Make sure we flush the output immediately */
! 1057: HTRequest_forceFlush(request);
! 1058:
1.125 frystyk 1059: /* Turn progress notifications back on */
1060: HTRequest_setInternal(request, NO);
1061:
1.124 frystyk 1062: /* Add the entity callback function to provide the form data */
1063: HTRequest_setPostCallback(request, HTEntity_callback);
1064:
1065: /* Now start the load normally */
1066: me->state = launch_request(request, NO) ?
1.125 frystyk 1067: HT_SAVE_DEST : HT_LOAD_SOURCE;
1.124 frystyk 1068:
1069: /*
1070: ** By returning HT_ERROR we make sure that this is the last handler to
1071: ** be called. We do this as we don't want any other filter to delete
1072: ** the request object now when we have just started a new one
1073: ** ourselves
1074: */
1075: return HT_ERROR;
1076:
1077: } else {
1078: HTRequest_deleteAfter(request, HTSaveFilter);
1079: HTAnchor_setDocument(me->source, me->placeholder);
1080: HTChunk_delete(me->document);
1081: HT_FREE(me);
1082: }
1083: return HT_OK;
1084: }
1085:
1086: /* Send an Anchor using PUT from absolute name
1087: ** -------------------------------------------
1088: ** Upload a document referenced by an absolute URL appended.
1089: ** The URL can NOT contain any fragment identifier!
1090: ** The list of form data must be given as an association list where
1091: ** the name is the field name and the value is the value of the field.
1092: */
1093: PUBLIC BOOL HTPutDocumentAbsolute (HTParentAnchor * source,
1094: const char * destination,
1095: HTRequest * request)
1096: {
1097: if (source && destination && request) {
1098: HTAnchor * dest = HTAnchor_findAddress(destination);
1099: return HTPutDocumentAnchor(source, dest, request);
1100: }
1101: return NO;
1102: }
1103:
1104: /* Send an Anchor using PUT from relative name
1105: ** -------------------------------------------
1106: ** Upload a document referenced by a relative URL appended.
1107: ** The URL can NOT contain any fragment identifier!
1108: ** The list of form data must be given as an association list where
1109: ** the name is the field name and the value is the value of the field.
1110: */
1111: PUBLIC BOOL HTPutDocumentRelative (HTParentAnchor * source,
1112: const char * relative,
1113: HTParentAnchor * destination_base,
1114: HTRequest * request)
1115: {
1116: if (source && relative && destination_base && request) {
1117: BOOL status;
1118: char * full_url = NULL;
1119: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
1120: full_url=HTParse(relative, base_url,
1121: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1122: status = HTPutDocumentAbsolute(source, full_url, request);
1123: HT_FREE(full_url);
1124: HT_FREE(base_url);
1125: return status;
1126: }
1127: return NO;
1128: }
1129:
1130: /* Send an Anchor using PUT from an anchor
1131: ** ---------------------------------------
1132: ** Upload a document referenced by an anchor object appended
1133: ** The URL can NOT contain any fragment identifier!
1134: ** The source document is first loaded into memory and then the PUT
1135: ** to the remote server is done using the memory version
1136: */
1137: PUBLIC BOOL HTPutDocumentAnchor (HTParentAnchor * source,
1138: HTAnchor * destination,
1139: HTRequest * request)
1140: {
1141: HTParentAnchor * dest = HTAnchor_parent(destination);
1142: if (source && dest && request) {
1.131 frystyk 1143: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 1144: HTPutContext * context = NULL;
1145:
1146: /*
1147: ** First we register an AFTER filter that can check the result
1148: ** of the source load if success then it can start the PUT
1149: ** operation to the destination.
1150: */
1151: if (!(context=(HTPutContext *) HT_CALLOC(1, sizeof(HTPutContext))))
1152: HT_OUTOFMEM("HTPutDocumentAnchor");
1153: context->source = source;
1154: context->destination = destination;
1.134 frystyk 1155:
1156: /*
1157: ** We register the after filter with a NULL template as we
1158: ** don't know the source of the data.
1159: */
1160: HTRequest_addAfter(request, HTSaveFilter, NULL, context, HT_ALL,
1161: HT_FILTER_FIRST, NO);
1.125 frystyk 1162:
1163: /* Turn off progress notifications */
1164: HTRequest_setInternal(request, YES);
1.124 frystyk 1165:
1166: /*
1167: ** We make sure that we are not using a memory cached element.
1168: ** It's OK to use a file cached element!
1169: */
1.133 frystyk 1170: HTRequest_setReloadMode(request, HT_CACHE_FLUSH_MEM);
1.124 frystyk 1171:
1172: /*
1173: ** Now we load the source document into a chunk. We specify that
1174: ** we want the document ASIS from the source location.
1175: */
1176: context->format = HTRequest_outputFormat(request);
1177: context->target = HTRequest_outputStream(request);
1178: HTRequest_setOutputFormat(request, WWW_SOURCE);
1179: context->document = HTLoadAnchorToChunk((HTAnchor*)source,request);
1180: if (context->document == NULL) {
1181: if (APP_TRACE) HTTrace("Put Document No source\n");
1182: HT_FREE(context);
1183: return NO;
1184: }
1185: return YES;
1186: }
1187: }
1188: return NO;
1189: }
1190:
1191: /* ------------------------------------------------------------------------- */
1.70 frystyk 1192:
1.90 frystyk 1193: /* Copy an anchor
1.70 frystyk 1194: ** --------------
1.90 frystyk 1195: ** Fetch the URL (possibly local file URL) and send it using either PUT
1196: ** or POST to the remote destination using HTTP. The caller can decide the
1197: ** exact method used and which HTTP header fields to transmit by setting
1198: ** the user fields in the request structure.
1.92 frystyk 1199: ** If posting to NNTP then we can't dispatch at this level but must pass
1200: ** the source anchor to the news module that then takes all the refs
1201: ** to NNTP and puts into the "newsgroups" header
1.70 frystyk 1202: */
1.109 frystyk 1203: PUBLIC BOOL HTCopyAnchor (HTAnchor * src_anchor, HTRequest * main_dest)
1.80 frystyk 1204: {
1.106 frystyk 1205: HTRequest * src_req;
1206: HTList * cur;
1.109 frystyk 1207: if (!src_anchor || !main_dest) {
1.115 eric 1208: if (WWWTRACE) HTTrace("Copy........ BAD ARGUMENT\n");
1.90 frystyk 1209: return NO;
1.109 frystyk 1210: }
1.70 frystyk 1211:
1.112 frystyk 1212: /* Set the source anchor */
1213: main_dest->source_anchor = HTAnchor_parent(src_anchor);
1214:
1.80 frystyk 1215: /* Build the POST web if not already there */
1.109 frystyk 1216: if (!main_dest->source) {
1217: src_req = HTRequest_dupInternal(main_dest); /* Get a duplicate */
1.80 frystyk 1218: HTAnchor_clearHeader((HTParentAnchor *) src_anchor);
1.109 frystyk 1219: src_req->method = METHOD_GET;
1.133 frystyk 1220: src_req->reload = HT_CACHE_FLUSH_MEM;
1.104 frystyk 1221: src_req->output_stream = NULL;
1.80 frystyk 1222: src_req->output_format = WWW_SOURCE; /* We want source (for now) */
1223:
1224: /* Set up the main link in the source anchor */
1225: {
1.106 frystyk 1226: HTLink * main_link = HTAnchor_mainLink((HTAnchor *) src_anchor);
1227: HTAnchor *main_anchor = HTLink_destination(main_link);
1228: HTMethod method = HTLink_method(main_link);
1.85 frystyk 1229: if (!main_link || method==METHOD_INVALID) {
1.91 frystyk 1230: if (WWWTRACE)
1.115 eric 1231: HTTrace("Copy Anchor. No destination found or unspecified method\n");
1.80 frystyk 1232: HTRequest_delete(src_req);
1.90 frystyk 1233: return NO;
1.80 frystyk 1234: }
1.109 frystyk 1235: main_dest->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1236: main_dest->reload = HT_CACHE_VALIDATE;
1.109 frystyk 1237: main_dest->method = method;
1238: main_dest->input_format = WWW_SOURCE;
1239: HTRequest_addDestination(src_req, main_dest);
1240: if (HTLoadAnchor(main_anchor, main_dest) == NO)
1241: return NO;
1.80 frystyk 1242: }
1.78 frystyk 1243:
1.80 frystyk 1244: /* For all other links in the source anchor */
1.106 frystyk 1245: if ((cur = HTAnchor_subLinks(src_anchor))) {
1246: HTLink * pres;
1.109 frystyk 1247: while ((pres = (HTLink *) HTList_nextObject(cur))) {
1.106 frystyk 1248: HTAnchor *dest = HTLink_destination(pres);
1249: HTMethod method = HTLink_method(pres);
1.80 frystyk 1250: HTRequest *dest_req;
1251: if (!dest || method==METHOD_INVALID) {
1.91 frystyk 1252: if (WWWTRACE)
1.115 eric 1253: HTTrace("Copy Anchor. Bad anchor setup %p\n",
1.80 frystyk 1254: dest);
1.90 frystyk 1255: return NO;
1.80 frystyk 1256: }
1.109 frystyk 1257: dest_req = HTRequest_dupInternal(main_dest);
1.107 frystyk 1258: dest_req->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1259: dest_req->reload = HT_CACHE_VALIDATE;
1.80 frystyk 1260: dest_req->method = method;
1.104 frystyk 1261: dest_req->output_stream = NULL;
1262: dest_req->output_format = WWW_SOURCE;
1.109 frystyk 1263: HTRequest_addDestination(src_req, dest_req);
1.104 frystyk 1264:
1.90 frystyk 1265: if (HTLoadAnchor(dest, dest_req) == NO)
1266: return NO;
1.80 frystyk 1267: }
1268: }
1269: } else { /* Use the existing Post Web and restart it */
1.109 frystyk 1270: src_req = main_dest->source;
1.80 frystyk 1271: if (src_req->mainDestination)
1.124 frystyk 1272: if (launch_request(main_dest, NO) == NO)
1.90 frystyk 1273: return NO;
1.80 frystyk 1274: if (src_req->destinations) {
1.106 frystyk 1275: HTRequest * pres;
1276: cur = HTAnchor_subLinks(src_anchor);
1.80 frystyk 1277: while ((pres = (HTRequest *) HTList_nextObject(cur)) != NULL) {
1.124 frystyk 1278: if (launch_request(pres, NO) == NO)
1.90 frystyk 1279: return NO;
1.80 frystyk 1280: }
1281: }
1.78 frystyk 1282: }
1283:
1.80 frystyk 1284: /* Now open the source */
1285: return HTLoadAnchor(src_anchor, src_req);
1.70 frystyk 1286: }
1287:
1.90 frystyk 1288: /* Upload an Anchor
1.70 frystyk 1289: ** ----------------
1.111 frystyk 1290: ** This function can be used to send data along with a request to a remote
1291: ** server. It can for example be used to POST form data to a remote HTTP
1292: ** server - or it can be used to post a newsletter to a NNTP server. In
1293: ** either case, you pass a callback function which the request calls when
1294: ** the remote destination is ready to accept data. In this callback
1295: ** you get the current request object and a stream into where you can
1296: ** write data. It is very important that you return the value returned
1297: ** by this stream to the Library so that it knows what to do next. The
1298: ** reason is that the outgoing stream might block or an error may
1299: ** occur and in that case the Library must know about it. The source
1300: ** anchor represents the data object in memory and it points to
1301: ** the destination anchor by using the POSTWeb method. The source anchor
1302: ** contains metainformation about the data object in memory and the
1303: ** destination anchor represents the reponse from the remote server.
1.90 frystyk 1304: ** Returns YES if request accepted, else NO
1305: */
1.111 frystyk 1306: PUBLIC BOOL HTUploadAnchor (HTAnchor * source_anchor,
1307: HTRequest * request,
1308: HTPostCallback * callback)
1309: {
1310: HTLink * link = HTAnchor_mainLink((HTAnchor *) source_anchor);
1311: HTAnchor * dest_anchor = HTLink_destination(link);
1312: HTMethod method = HTLink_method(link);
1313: if (!link || method==METHOD_INVALID || !callback) {
1314: if (WWWTRACE)
1.115 eric 1315: HTTrace("Upload...... No destination found or unspecified method\n");
1.90 frystyk 1316: return NO;
1.109 frystyk 1317: }
1.111 frystyk 1318: request->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1319: request->reload = HT_CACHE_VALIDATE;
1.111 frystyk 1320: request->method = method;
1321: request->source_anchor = HTAnchor_parent(source_anchor);
1322: request->PostCallback = callback;
1323: return HTLoadAnchor(dest_anchor, request);
1324: }
1325:
1326: /* POST Callback Handler
1327: ** ---------------------
1328: ** If you do not want to handle the stream interface on your own, you
1329: ** can use this function which writes the source anchor hyperdoc to the
1330: ** target stream for the anchor upload and also handles the return value
1331: ** from the stream. If you don't want to write the source anchor hyperdoc
1332: ** then you can register your own callback function that can get the data
1333: ** you want.
1334: */
1335: PUBLIC int HTUpload_callback (HTRequest * request, HTStream * target)
1336: {
1.115 eric 1337: if (WWWTRACE) HTTrace("Uploading... from callback function\n");
1.111 frystyk 1338: if (!request || !request->source_anchor || !target) return HT_ERROR;
1339: {
1340: int status;
1341: HTParentAnchor * source = request->source_anchor;
1342: char * document = (char *) HTAnchor_document(request->source_anchor);
1343: int len = HTAnchor_length(source);
1344: if (len < 0) {
1345: len = strlen(document);
1346: HTAnchor_setLength(source, len);
1347: }
1348: status = (*target->isa->put_block)(target, document, len);
1349: if (status == HT_OK)
1350: return (*target->isa->flush)(target);
1351: if (status == HT_WOULD_BLOCK) {
1.115 eric 1352: if (PROT_TRACE)HTTrace("POST Anchor. Target WOULD BLOCK\n");
1.111 frystyk 1353: return HT_WOULD_BLOCK;
1354: } else if (status == HT_PAUSE) {
1.115 eric 1355: if (PROT_TRACE) HTTrace("POST Anchor. Target PAUSED\n");
1.111 frystyk 1356: return HT_PAUSE;
1357: } else if (status > 0) { /* Stream specific return code */
1358: if (PROT_TRACE)
1.115 eric 1359: HTTrace("POST Anchor. Target returns %d\n", status);
1.111 frystyk 1360: return status;
1.120 eric 1361: } else { /* we have a real error */
1.115 eric 1362: if (PROT_TRACE) HTTrace("POST Anchor. Target ERROR\n");
1.111 frystyk 1363: return status;
1364: }
1.70 frystyk 1365: }
1.123 frystyk 1366: }
1367:
1368: /* ------------------------------------------------------------------------- */
1369: /* HEAD METHOD */
1370: /* ------------------------------------------------------------------------- */
1371:
1372: /* Request metainformation about a document from absolute name
1373: ** -----------------------------------------------------------
1374: ** Request a document referencd by an absolute URL.
1375: ** Returns YES if request accepted, else NO
1376: */
1377: PUBLIC BOOL HTHeadAbsolute (const char * url, HTRequest * request)
1378: {
1379: if (url && request) {
1380: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1381: return HTHeadAnchor(anchor, request);
1.123 frystyk 1382: }
1383: return NO;
1384: }
1385:
1386: /* Request metainformation about a document from relative name
1387: ** -----------------------------------------------------------
1388: ** Request a document referenced by a relative URL. The relative URL is
1389: ** made absolute by resolving it relative to the address of the 'base'
1390: ** anchor.
1391: ** Returns YES if request accepted, else NO
1392: */
1393: PUBLIC BOOL HTHeadRelative (const char * relative,
1394: HTParentAnchor * base,
1395: HTRequest * request)
1396: {
1397: BOOL status = NO;
1398: if (relative && base && request) {
1399: char * rel = NULL;
1400: char * full_url = NULL;
1401: char * base_url = HTAnchor_address((HTAnchor *) base);
1402: StrAllocCopy(rel, relative);
1403: full_url = HTParse(HTStrip(rel), base_url,
1404: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1405: status = HTHeadAbsolute(full_url, request);
1.123 frystyk 1406: HT_FREE(rel);
1407: HT_FREE(full_url);
1408: HT_FREE(base_url);
1409: }
1410: return status;
1411: }
1412:
1413: /* Request metainformation about an anchor
1414: ** --------------------------------------
1415: ** Request the document referenced by the anchor
1416: ** Returns YES if request accepted, else NO
1417: */
1418: PUBLIC BOOL HTHeadAnchor (HTAnchor * anchor, HTRequest * request)
1419: {
1420: if (anchor && request) {
1421: HTRequest_setAnchor(request, anchor);
1422: HTRequest_setMethod(request, METHOD_HEAD);
1.124 frystyk 1423: return launch_request(request, NO);
1.123 frystyk 1424: }
1425: return NO;
1426: }
1427:
1428: /* ------------------------------------------------------------------------- */
1429: /* DELETE METHOD */
1430: /* ------------------------------------------------------------------------- */
1431:
1432: /* Delete a document on a remote server
1433: ** ------------------------------------
1434: ** Request a document referencd by an absolute URL.
1435: ** Returns YES if request accepted, else NO
1436: */
1437: PUBLIC BOOL HTDeleteAbsolute (const char * url, HTRequest * request)
1438: {
1439: if (url && request) {
1440: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1441: return HTDeleteAnchor(anchor, request);
1.123 frystyk 1442: }
1443: return NO;
1444: }
1445:
1446: /* Request metainformation about a document from relative name
1447: ** -----------------------------------------------------------
1448: ** Request a document referenced by a relative URL. The relative URL is
1449: ** made absolute by resolving it relative to the address of the 'base'
1450: ** anchor.
1451: ** Returns YES if request accepted, else NO
1452: */
1453: PUBLIC BOOL HTDeleteRelative (const char * relative,
1454: HTParentAnchor * base,
1455: HTRequest * request)
1456: {
1457: BOOL status = NO;
1458: if (relative && base && request) {
1459: char * rel = NULL;
1460: char * full_url = NULL;
1461: char * base_url = HTAnchor_address((HTAnchor *) base);
1462: StrAllocCopy(rel, relative);
1463: full_url = HTParse(HTStrip(rel), base_url,
1464: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1465: status = HTDeleteAbsolute(full_url, request);
1.123 frystyk 1466: HT_FREE(rel);
1467: HT_FREE(full_url);
1468: HT_FREE(base_url);
1469: }
1470: return status;
1471: }
1472:
1473: /* Request metainformation about an anchor
1474: ** --------------------------------------
1475: ** Request the document referenced by the anchor
1476: ** Returns YES if request accepted, else NO
1477: */
1478: PUBLIC BOOL HTDeleteAnchor (HTAnchor * anchor, HTRequest * request)
1479: {
1480: if (anchor && request) {
1481: HTRequest_setAnchor(request, anchor);
1482: HTRequest_setMethod(request, METHOD_DELETE);
1.124 frystyk 1483: return launch_request(request, NO);
1484: }
1485: return NO;
1486: }
1487:
1488: /* ------------------------------------------------------------------------- */
1489: /* OPTIONS METHOD */
1490: /* ------------------------------------------------------------------------- */
1491:
1492: /* Options availeble for document from absolute name
1493: ** -------------------------------------------------
1494: ** Request a document referencd by an absolute URL.
1495: ** Returns YES if request accepted, else NO
1496: */
1497: PUBLIC BOOL HTOptionsAbsolute (const char * url, HTRequest * request)
1498: {
1499: if (url && request) {
1500: HTAnchor * anchor = HTAnchor_findAddress(url);
1501: return HTOptionsAnchor(anchor, request);
1502: }
1503: return NO;
1504: }
1505:
1506: /* Options available for document from relative name
1507: ** -------------------------------------------------
1508: ** Request a document referenced by a relative URL. The relative URL is
1509: ** made absolute by resolving it relative to the address of the 'base'
1510: ** anchor.
1511: ** Returns YES if request accepted, else NO
1512: */
1513: PUBLIC BOOL HTOptionsRelative (const char * relative,
1514: HTParentAnchor * base,
1515: HTRequest * request)
1516: {
1517: BOOL status = NO;
1518: if (relative && base && request) {
1519: char * rel = NULL;
1520: char * full_url = NULL;
1521: char * base_url = HTAnchor_address((HTAnchor *) base);
1522: StrAllocCopy(rel, relative);
1523: full_url = HTParse(HTStrip(rel), base_url,
1524: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1525: status = HTOptionsAbsolute(full_url, request);
1526: HT_FREE(rel);
1527: HT_FREE(full_url);
1528: HT_FREE(base_url);
1529: }
1530: return status;
1531: }
1532:
1533: /* Options available for document using Anchor
1534: ** -------------------------------------------
1535: ** Request the document referenced by the anchor
1536: ** Returns YES if request accepted, else NO
1537: */
1538: PUBLIC BOOL HTOptionsAnchor (HTAnchor * anchor, HTRequest * request)
1539: {
1540: if (anchor && request) {
1541: HTRequest_setAnchor(request, anchor);
1542: HTRequest_setMethod(request, METHOD_OPTIONS);
1543: return launch_request(request, NO);
1.123 frystyk 1544: }
1545: return NO;
1.1 timbl 1546: }
1.127 frystyk 1547:
1548: /* ------------------------------------------------------------------------- */
1549: /* TRACE METHOD */
1550: /* ------------------------------------------------------------------------- */
1551:
1552: /* Traces available for document from absolute name
1553: ** ------------------------------------------------
1554: ** Request a document referencd by an absolute URL.
1555: ** Returns YES if request accepted, else NO
1556: */
1557: PUBLIC BOOL HTTraceAbsolute (const char * url, HTRequest * request)
1558: {
1559: if (url && request) {
1560: HTAnchor * anchor = HTAnchor_findAddress(url);
1561: return HTTraceAnchor(anchor, request);
1562: }
1563: return NO;
1564: }
1565:
1566: /* Traces available for document from relative name
1567: ** ------------------------------------------------
1568: ** Request a document referenced by a relative URL. The relative URL is
1569: ** made absolute by resolving it relative to the address of the 'base'
1570: ** anchor.
1571: ** Returns YES if request accepted, else NO
1572: */
1573: PUBLIC BOOL HTTraceRelative (const char * relative,
1574: HTParentAnchor * base,
1575: HTRequest * request)
1576: {
1577: BOOL status = NO;
1578: if (relative && base && request) {
1579: char * rel = NULL;
1580: char * full_url = NULL;
1581: char * base_url = HTAnchor_address((HTAnchor *) base);
1582: StrAllocCopy(rel, relative);
1583: full_url = HTParse(HTStrip(rel), base_url,
1584: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1585: status = HTTraceAbsolute(full_url, request);
1586: HT_FREE(rel);
1587: HT_FREE(full_url);
1588: HT_FREE(base_url);
1589: }
1590: return status;
1591: }
1592:
1593: /* Trace available for document using Anchor
1594: ** -------------------------------------------
1595: ** Request the document referenced by the anchor
1596: ** Returns YES if request accepted, else NO
1597: */
1598: PUBLIC BOOL HTTraceAnchor (HTAnchor * anchor, HTRequest * request)
1599: {
1600: if (anchor && request) {
1601: HTRequest_setAnchor(request, anchor);
1602: HTRequest_setMethod(request, METHOD_TRACE);
1603: return launch_request(request, NO);
1604: }
1605: return NO;
1606: }
1607:
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