Annotation of libwww/Library/src/HTAccess.c, revision 1.138
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.
1.138 ! frystyk 6: ** @(#) $Id: HTAccess.c,v 1.137 1997/04/05 00:25:14 frystyk Exp $
1.1 timbl 7: **
8: ** Authors
1.79 frystyk 9: ** TBL Tim Berners-Lee timbl@w3.org
1.4 timbl 10: ** JFG Jean-Francois Groff jfg@dxcern.cern.ch
1.1 timbl 11: ** DD Denis DeLaRoca (310) 825-4580 <CSP1DWD@mvs.oac.ucla.edu>
1.122 frystyk 12: ** HFN Henrik Frystyk, frystyk@w3.org
1.1 timbl 13: ** History
14: ** 8 Jun 92 Telnet hopping prohibited as telnet is not secure TBL
15: ** 26 Jun 92 When over DECnet, suppressed FTP, Gopher and News. JFG
1.42 frystyk 16: ** 6 Oct 92 Moved HTClientHost and HTlogfile into here. TBL
1.1 timbl 17: ** 17 Dec 92 Tn3270 added, bug fix. DD
1.2 timbl 18: ** 4 Feb 93 Access registration, Search escapes bad chars TBL
1.9 timbl 19: ** PARAMETERS TO HTSEARCH AND HTLOADRELATIVE CHANGED
20: ** 28 May 93 WAIS gateway explicit if no WAIS library linked in.
1.19 timbl 21: ** Dec 93 Bug change around, more reentrant, etc
1.42 frystyk 22: ** 09 May 94 logfile renamed to HTlogfile to avoid clash with WAIS
1.114 frystyk 23: ** 8 Jul 94 Insulate HT_FREE();
1.88 frystyk 24: ** Sep 95 Rewritten, HFN
1.1 timbl 25: */
26:
1.67 frystyk 27: /* Library include files */
1.122 frystyk 28: #include "WWWUtil.h"
29: #include "WWWCore.h"
30: #include "WWWStream.h"
1.132 frystyk 31: #include "HTProxy.h"
32: #include "HTRules.h"
1.93 frystyk 33: #include "HTReqMan.h"
34: #include "HTAccess.h" /* Implemented here */
1.88 frystyk 35:
1.111 frystyk 36: #define PUTBLOCK(b, l) (*target->isa->put_block)(target, b, l)
37:
38: struct _HTStream {
39: HTStreamClass * isa;
40: };
41:
1.124 frystyk 42: typedef enum _HTPutState {
1.125 frystyk 43: HT_LOAD_SOURCE = 0,
1.128 frystyk 44: HT_SAVE_DEST,
45: HT_ABORT_SAVE
1.124 frystyk 46: } HTPutState;
47:
48: typedef struct _HTPutContext {
49: HTParentAnchor * source;
50: HTAnchor * destination;
51: HTChunk * document;
52: HTFormat format;
53: HTStream * target; /* Any existing output stream */
54: void * placeholder; /* Any existing doc in anchor */
55: HTPutState state;
56: } HTPutContext;
57:
1.123 frystyk 58: /* --------------------------------------------------------------------------*/
59: /* THE GET METHOD */
60: /* --------------------------------------------------------------------------*/
1.33 luotonen 61:
1.90 frystyk 62: /* Request a document
63: ** -----------------
64: ** Private version that requests a document from the request manager
65: ** Returns YES if request accepted, else NO
1.88 frystyk 66: */
1.124 frystyk 67: PRIVATE BOOL launch_request (HTRequest * request, BOOL recursive)
1.88 frystyk 68: {
69: if (PROT_TRACE) {
1.90 frystyk 70: HTParentAnchor *anchor = HTRequest_anchor(request);
71: char * full_address = HTAnchor_address((HTAnchor *) anchor);
1.115 eric 72: HTTrace("HTAccess.... Accessing document %s\n", full_address);
1.114 frystyk 73: HT_FREE(full_address);
1.88 frystyk 74: }
1.96 frystyk 75: return HTLoad(request, recursive);
1.58 frystyk 76: }
1.1 timbl 77:
1.90 frystyk 78: /* Request a document from absolute name
79: ** -------------------------------------
80: ** Request a document referencd by an absolute URL.
81: ** Returns YES if request accepted, else NO
82: */
1.122 frystyk 83: PUBLIC BOOL HTLoadAbsolute (const char * url, HTRequest * request)
1.90 frystyk 84: {
85: if (url && request) {
86: HTAnchor * anchor = HTAnchor_findAddress(url);
87: HTRequest_setAnchor(request, anchor);
1.124 frystyk 88: return launch_request(request, NO);
1.90 frystyk 89: }
90: return NO;
91: }
92:
1.123 frystyk 93: /* Request a document from relative name
94: ** -------------------------------------
95: ** Request a document referenced by a relative URL. The relative URL is
96: ** made absolute by resolving it relative to the address of the 'base'
97: ** anchor.
98: ** Returns YES if request accepted, else NO
99: */
100: PUBLIC BOOL HTLoadRelative (const char * relative,
101: HTParentAnchor * base,
102: HTRequest * request)
103: {
104: BOOL status = NO;
105: if (relative && base && request) {
106: char * full_url = NULL;
107: char * base_url = HTAnchor_address((HTAnchor *) base);
108: full_url = HTParse(relative, base_url,
109: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
110: status = HTLoadAbsolute(full_url, request);
111: HT_FREE(full_url);
112: HT_FREE(base_url);
113: }
114: return status;
115: }
1.90 frystyk 116:
117: /* Request a document from absolute name to stream
118: ** -----------------------------------------------
119: ** Request a document referencd by an absolute URL and sending the data
1.123 frystyk 120: ** down a stream.
121: ** Returns YES if request accepted, else NO
122: */
123: PUBLIC BOOL HTLoadToStream (const char * url, HTStream * output,
124: HTRequest * request)
125: {
126: if (url && output && request) {
127: HTRequest_setOutputStream(request, output);
128: return HTLoadAbsolute(url, request);
129: }
130: return NO;
131: }
132:
133: /* Load a document and save it ASIS in a local file
134: ** ------------------------------------------------
1.90 frystyk 135: ** Returns YES if request accepted, else NO
136: */
1.123 frystyk 137: PUBLIC BOOL HTLoadToFile (const char * url, HTRequest * request,
138: const char * filename)
1.90 frystyk 139: {
1.123 frystyk 140: if (url && filename && request) {
141: FILE * fp = NULL;
142:
143: /* Check if file exists. If so then ask user if we can replace it */
144: if (access(filename, F_OK) != -1) {
145: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
146: if (prompt) {
147: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_FILE_REPLACE, NULL,
148: NULL, NULL) != YES)
149: return NO;
150: }
151: }
152:
153: /* If replace then open the file */
154: if ((fp = fopen(filename, "wb")) == NULL) {
155: HTRequest_addError(request, ERR_NON_FATAL, NO, HTERR_NO_FILE,
156: (char *) filename, strlen(filename),
157: "HTLoadToFile");
158: return NO;
159: }
160:
161: /* Set the output stream and start the request */
162: HTRequest_setOutputFormat(request, WWW_SOURCE);
163: HTRequest_setOutputStream(request, HTFWriter_new(request, fp, NO));
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:
1.125 frystyk 1056: /* Turn progress notifications back on */
1057: HTRequest_setInternal(request, NO);
1058:
1.124 frystyk 1059: /* Add the entity callback function to provide the form data */
1060: HTRequest_setPostCallback(request, HTEntity_callback);
1061:
1062: /* Now start the load normally */
1063: me->state = launch_request(request, NO) ?
1.125 frystyk 1064: HT_SAVE_DEST : HT_LOAD_SOURCE;
1.124 frystyk 1065:
1066: /*
1067: ** By returning HT_ERROR we make sure that this is the last handler to
1068: ** be called. We do this as we don't want any other filter to delete
1069: ** the request object now when we have just started a new one
1070: ** ourselves
1071: */
1072: return HT_ERROR;
1073:
1074: } else {
1075: HTRequest_deleteAfter(request, HTSaveFilter);
1076: HTAnchor_setDocument(me->source, me->placeholder);
1077: HTChunk_delete(me->document);
1078: HT_FREE(me);
1079: }
1080: return HT_OK;
1081: }
1082:
1083: /* Send an Anchor using PUT from absolute name
1084: ** -------------------------------------------
1085: ** Upload a document referenced by an absolute URL appended.
1086: ** The URL can NOT contain any fragment identifier!
1087: ** The list of form data must be given as an association list where
1088: ** the name is the field name and the value is the value of the field.
1089: */
1090: PUBLIC BOOL HTPutDocumentAbsolute (HTParentAnchor * source,
1091: const char * destination,
1092: HTRequest * request)
1093: {
1094: if (source && destination && request) {
1095: HTAnchor * dest = HTAnchor_findAddress(destination);
1096: return HTPutDocumentAnchor(source, dest, request);
1097: }
1098: return NO;
1099: }
1100:
1101: /* Send an Anchor using PUT from relative name
1102: ** -------------------------------------------
1103: ** Upload a document referenced by a relative URL appended.
1104: ** The URL can NOT contain any fragment identifier!
1105: ** The list of form data must be given as an association list where
1106: ** the name is the field name and the value is the value of the field.
1107: */
1108: PUBLIC BOOL HTPutDocumentRelative (HTParentAnchor * source,
1109: const char * relative,
1110: HTParentAnchor * destination_base,
1111: HTRequest * request)
1112: {
1113: if (source && relative && destination_base && request) {
1114: BOOL status;
1115: char * full_url = NULL;
1116: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
1117: full_url=HTParse(relative, base_url,
1118: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1119: status = HTPutDocumentAbsolute(source, full_url, request);
1120: HT_FREE(full_url);
1121: HT_FREE(base_url);
1122: return status;
1123: }
1124: return NO;
1125: }
1126:
1127: /* Send an Anchor using PUT from an anchor
1128: ** ---------------------------------------
1129: ** Upload a document referenced by an anchor object appended
1130: ** The URL can NOT contain any fragment identifier!
1131: ** The source document is first loaded into memory and then the PUT
1132: ** to the remote server is done using the memory version
1133: */
1134: PUBLIC BOOL HTPutDocumentAnchor (HTParentAnchor * source,
1135: HTAnchor * destination,
1136: HTRequest * request)
1137: {
1138: HTParentAnchor * dest = HTAnchor_parent(destination);
1139: if (source && dest && request) {
1.131 frystyk 1140: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 1141: HTPutContext * context = NULL;
1142:
1143: /*
1144: ** First we register an AFTER filter that can check the result
1145: ** of the source load if success then it can start the PUT
1146: ** operation to the destination.
1147: */
1148: if (!(context=(HTPutContext *) HT_CALLOC(1, sizeof(HTPutContext))))
1149: HT_OUTOFMEM("HTPutDocumentAnchor");
1150: context->source = source;
1151: context->destination = destination;
1.134 frystyk 1152:
1153: /*
1154: ** We register the after filter with a NULL template as we
1155: ** don't know the source of the data.
1156: */
1157: HTRequest_addAfter(request, HTSaveFilter, NULL, context, HT_ALL,
1158: HT_FILTER_FIRST, NO);
1.125 frystyk 1159:
1160: /* Turn off progress notifications */
1161: HTRequest_setInternal(request, YES);
1.124 frystyk 1162:
1163: /*
1164: ** We make sure that we are not using a memory cached element.
1165: ** It's OK to use a file cached element!
1166: */
1.133 frystyk 1167: HTRequest_setReloadMode(request, HT_CACHE_FLUSH_MEM);
1.124 frystyk 1168:
1169: /*
1170: ** Now we load the source document into a chunk. We specify that
1171: ** we want the document ASIS from the source location.
1172: */
1173: context->format = HTRequest_outputFormat(request);
1174: context->target = HTRequest_outputStream(request);
1175: HTRequest_setOutputFormat(request, WWW_SOURCE);
1176: context->document = HTLoadAnchorToChunk((HTAnchor*)source,request);
1177: if (context->document == NULL) {
1178: if (APP_TRACE) HTTrace("Put Document No source\n");
1179: HT_FREE(context);
1180: return NO;
1181: }
1182: return YES;
1183: }
1184: }
1185: return NO;
1186: }
1187:
1188: /* ------------------------------------------------------------------------- */
1.70 frystyk 1189:
1.90 frystyk 1190: /* Copy an anchor
1.70 frystyk 1191: ** --------------
1.90 frystyk 1192: ** Fetch the URL (possibly local file URL) and send it using either PUT
1193: ** or POST to the remote destination using HTTP. The caller can decide the
1194: ** exact method used and which HTTP header fields to transmit by setting
1195: ** the user fields in the request structure.
1.92 frystyk 1196: ** If posting to NNTP then we can't dispatch at this level but must pass
1197: ** the source anchor to the news module that then takes all the refs
1198: ** to NNTP and puts into the "newsgroups" header
1.70 frystyk 1199: */
1.109 frystyk 1200: PUBLIC BOOL HTCopyAnchor (HTAnchor * src_anchor, HTRequest * main_dest)
1.80 frystyk 1201: {
1.106 frystyk 1202: HTRequest * src_req;
1203: HTList * cur;
1.109 frystyk 1204: if (!src_anchor || !main_dest) {
1.115 eric 1205: if (WWWTRACE) HTTrace("Copy........ BAD ARGUMENT\n");
1.90 frystyk 1206: return NO;
1.109 frystyk 1207: }
1.70 frystyk 1208:
1.112 frystyk 1209: /* Set the source anchor */
1210: main_dest->source_anchor = HTAnchor_parent(src_anchor);
1211:
1.80 frystyk 1212: /* Build the POST web if not already there */
1.109 frystyk 1213: if (!main_dest->source) {
1214: src_req = HTRequest_dupInternal(main_dest); /* Get a duplicate */
1.80 frystyk 1215: HTAnchor_clearHeader((HTParentAnchor *) src_anchor);
1.109 frystyk 1216: src_req->method = METHOD_GET;
1.133 frystyk 1217: src_req->reload = HT_CACHE_FLUSH_MEM;
1.104 frystyk 1218: src_req->output_stream = NULL;
1.80 frystyk 1219: src_req->output_format = WWW_SOURCE; /* We want source (for now) */
1220:
1221: /* Set up the main link in the source anchor */
1222: {
1.106 frystyk 1223: HTLink * main_link = HTAnchor_mainLink((HTAnchor *) src_anchor);
1224: HTAnchor *main_anchor = HTLink_destination(main_link);
1225: HTMethod method = HTLink_method(main_link);
1.85 frystyk 1226: if (!main_link || method==METHOD_INVALID) {
1.91 frystyk 1227: if (WWWTRACE)
1.115 eric 1228: HTTrace("Copy Anchor. No destination found or unspecified method\n");
1.80 frystyk 1229: HTRequest_delete(src_req);
1.90 frystyk 1230: return NO;
1.80 frystyk 1231: }
1.109 frystyk 1232: main_dest->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1233: main_dest->reload = HT_CACHE_VALIDATE;
1.109 frystyk 1234: main_dest->method = method;
1235: main_dest->input_format = WWW_SOURCE;
1236: HTRequest_addDestination(src_req, main_dest);
1237: if (HTLoadAnchor(main_anchor, main_dest) == NO)
1238: return NO;
1.80 frystyk 1239: }
1.78 frystyk 1240:
1.80 frystyk 1241: /* For all other links in the source anchor */
1.106 frystyk 1242: if ((cur = HTAnchor_subLinks(src_anchor))) {
1243: HTLink * pres;
1.109 frystyk 1244: while ((pres = (HTLink *) HTList_nextObject(cur))) {
1.106 frystyk 1245: HTAnchor *dest = HTLink_destination(pres);
1246: HTMethod method = HTLink_method(pres);
1.80 frystyk 1247: HTRequest *dest_req;
1248: if (!dest || method==METHOD_INVALID) {
1.91 frystyk 1249: if (WWWTRACE)
1.115 eric 1250: HTTrace("Copy Anchor. Bad anchor setup %p\n",
1.80 frystyk 1251: dest);
1.90 frystyk 1252: return NO;
1.80 frystyk 1253: }
1.109 frystyk 1254: dest_req = HTRequest_dupInternal(main_dest);
1.107 frystyk 1255: dest_req->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1256: dest_req->reload = HT_CACHE_VALIDATE;
1.80 frystyk 1257: dest_req->method = method;
1.104 frystyk 1258: dest_req->output_stream = NULL;
1259: dest_req->output_format = WWW_SOURCE;
1.109 frystyk 1260: HTRequest_addDestination(src_req, dest_req);
1.104 frystyk 1261:
1.90 frystyk 1262: if (HTLoadAnchor(dest, dest_req) == NO)
1263: return NO;
1.80 frystyk 1264: }
1265: }
1266: } else { /* Use the existing Post Web and restart it */
1.109 frystyk 1267: src_req = main_dest->source;
1.80 frystyk 1268: if (src_req->mainDestination)
1.124 frystyk 1269: if (launch_request(main_dest, NO) == NO)
1.90 frystyk 1270: return NO;
1.80 frystyk 1271: if (src_req->destinations) {
1.106 frystyk 1272: HTRequest * pres;
1273: cur = HTAnchor_subLinks(src_anchor);
1.80 frystyk 1274: while ((pres = (HTRequest *) HTList_nextObject(cur)) != NULL) {
1.124 frystyk 1275: if (launch_request(pres, NO) == NO)
1.90 frystyk 1276: return NO;
1.80 frystyk 1277: }
1278: }
1.78 frystyk 1279: }
1280:
1.80 frystyk 1281: /* Now open the source */
1282: return HTLoadAnchor(src_anchor, src_req);
1.70 frystyk 1283: }
1284:
1.90 frystyk 1285: /* Upload an Anchor
1.70 frystyk 1286: ** ----------------
1.111 frystyk 1287: ** This function can be used to send data along with a request to a remote
1288: ** server. It can for example be used to POST form data to a remote HTTP
1289: ** server - or it can be used to post a newsletter to a NNTP server. In
1290: ** either case, you pass a callback function which the request calls when
1291: ** the remote destination is ready to accept data. In this callback
1292: ** you get the current request object and a stream into where you can
1293: ** write data. It is very important that you return the value returned
1294: ** by this stream to the Library so that it knows what to do next. The
1295: ** reason is that the outgoing stream might block or an error may
1296: ** occur and in that case the Library must know about it. The source
1297: ** anchor represents the data object in memory and it points to
1298: ** the destination anchor by using the POSTWeb method. The source anchor
1299: ** contains metainformation about the data object in memory and the
1300: ** destination anchor represents the reponse from the remote server.
1.90 frystyk 1301: ** Returns YES if request accepted, else NO
1302: */
1.111 frystyk 1303: PUBLIC BOOL HTUploadAnchor (HTAnchor * source_anchor,
1304: HTRequest * request,
1305: HTPostCallback * callback)
1306: {
1307: HTLink * link = HTAnchor_mainLink((HTAnchor *) source_anchor);
1308: HTAnchor * dest_anchor = HTLink_destination(link);
1309: HTMethod method = HTLink_method(link);
1310: if (!link || method==METHOD_INVALID || !callback) {
1311: if (WWWTRACE)
1.115 eric 1312: HTTrace("Upload...... No destination found or unspecified method\n");
1.90 frystyk 1313: return NO;
1.109 frystyk 1314: }
1.111 frystyk 1315: request->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1316: request->reload = HT_CACHE_VALIDATE;
1.111 frystyk 1317: request->method = method;
1318: request->source_anchor = HTAnchor_parent(source_anchor);
1319: request->PostCallback = callback;
1320: return HTLoadAnchor(dest_anchor, request);
1321: }
1322:
1323: /* POST Callback Handler
1324: ** ---------------------
1325: ** If you do not want to handle the stream interface on your own, you
1326: ** can use this function which writes the source anchor hyperdoc to the
1327: ** target stream for the anchor upload and also handles the return value
1328: ** from the stream. If you don't want to write the source anchor hyperdoc
1329: ** then you can register your own callback function that can get the data
1330: ** you want.
1331: */
1332: PUBLIC int HTUpload_callback (HTRequest * request, HTStream * target)
1333: {
1.115 eric 1334: if (WWWTRACE) HTTrace("Uploading... from callback function\n");
1.111 frystyk 1335: if (!request || !request->source_anchor || !target) return HT_ERROR;
1336: {
1337: int status;
1338: HTParentAnchor * source = request->source_anchor;
1339: char * document = (char *) HTAnchor_document(request->source_anchor);
1340: int len = HTAnchor_length(source);
1341: if (len < 0) {
1342: len = strlen(document);
1343: HTAnchor_setLength(source, len);
1344: }
1345: status = (*target->isa->put_block)(target, document, len);
1346: if (status == HT_OK)
1347: return (*target->isa->flush)(target);
1348: if (status == HT_WOULD_BLOCK) {
1.115 eric 1349: if (PROT_TRACE)HTTrace("POST Anchor. Target WOULD BLOCK\n");
1.111 frystyk 1350: return HT_WOULD_BLOCK;
1351: } else if (status == HT_PAUSE) {
1.115 eric 1352: if (PROT_TRACE) HTTrace("POST Anchor. Target PAUSED\n");
1.111 frystyk 1353: return HT_PAUSE;
1354: } else if (status > 0) { /* Stream specific return code */
1355: if (PROT_TRACE)
1.115 eric 1356: HTTrace("POST Anchor. Target returns %d\n", status);
1.111 frystyk 1357: return status;
1.120 eric 1358: } else { /* we have a real error */
1.115 eric 1359: if (PROT_TRACE) HTTrace("POST Anchor. Target ERROR\n");
1.111 frystyk 1360: return status;
1361: }
1.70 frystyk 1362: }
1.123 frystyk 1363: }
1364:
1365: /* ------------------------------------------------------------------------- */
1366: /* HEAD METHOD */
1367: /* ------------------------------------------------------------------------- */
1368:
1369: /* Request metainformation about a document from absolute name
1370: ** -----------------------------------------------------------
1371: ** Request a document referencd by an absolute URL.
1372: ** Returns YES if request accepted, else NO
1373: */
1374: PUBLIC BOOL HTHeadAbsolute (const char * url, HTRequest * request)
1375: {
1376: if (url && request) {
1377: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1378: return HTHeadAnchor(anchor, request);
1.123 frystyk 1379: }
1380: return NO;
1381: }
1382:
1383: /* Request metainformation about a document from relative name
1384: ** -----------------------------------------------------------
1385: ** Request a document referenced by a relative URL. The relative URL is
1386: ** made absolute by resolving it relative to the address of the 'base'
1387: ** anchor.
1388: ** Returns YES if request accepted, else NO
1389: */
1390: PUBLIC BOOL HTHeadRelative (const char * relative,
1391: HTParentAnchor * base,
1392: HTRequest * request)
1393: {
1394: BOOL status = NO;
1395: if (relative && base && request) {
1396: char * rel = NULL;
1397: char * full_url = NULL;
1398: char * base_url = HTAnchor_address((HTAnchor *) base);
1399: StrAllocCopy(rel, relative);
1400: full_url = HTParse(HTStrip(rel), base_url,
1401: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1402: status = HTHeadAbsolute(full_url, request);
1.123 frystyk 1403: HT_FREE(rel);
1404: HT_FREE(full_url);
1405: HT_FREE(base_url);
1406: }
1407: return status;
1408: }
1409:
1410: /* Request metainformation about an anchor
1411: ** --------------------------------------
1412: ** Request the document referenced by the anchor
1413: ** Returns YES if request accepted, else NO
1414: */
1415: PUBLIC BOOL HTHeadAnchor (HTAnchor * anchor, HTRequest * request)
1416: {
1417: if (anchor && request) {
1418: HTRequest_setAnchor(request, anchor);
1.134 frystyk 1419: HTRequest_setOutputFormat(request, WWW_MIME);
1.123 frystyk 1420: HTRequest_setMethod(request, METHOD_HEAD);
1.124 frystyk 1421: return launch_request(request, NO);
1.123 frystyk 1422: }
1423: return NO;
1424: }
1425:
1426: /* ------------------------------------------------------------------------- */
1427: /* DELETE METHOD */
1428: /* ------------------------------------------------------------------------- */
1429:
1430: /* Delete a document on a remote server
1431: ** ------------------------------------
1432: ** Request a document referencd by an absolute URL.
1433: ** Returns YES if request accepted, else NO
1434: */
1435: PUBLIC BOOL HTDeleteAbsolute (const char * url, HTRequest * request)
1436: {
1437: if (url && request) {
1438: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1439: return HTDeleteAnchor(anchor, request);
1.123 frystyk 1440: }
1441: return NO;
1442: }
1443:
1444: /* Request metainformation about a document from relative name
1445: ** -----------------------------------------------------------
1446: ** Request a document referenced by a relative URL. The relative URL is
1447: ** made absolute by resolving it relative to the address of the 'base'
1448: ** anchor.
1449: ** Returns YES if request accepted, else NO
1450: */
1451: PUBLIC BOOL HTDeleteRelative (const char * relative,
1452: HTParentAnchor * base,
1453: HTRequest * request)
1454: {
1455: BOOL status = NO;
1456: if (relative && base && request) {
1457: char * rel = NULL;
1458: char * full_url = NULL;
1459: char * base_url = HTAnchor_address((HTAnchor *) base);
1460: StrAllocCopy(rel, relative);
1461: full_url = HTParse(HTStrip(rel), base_url,
1462: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1463: status = HTDeleteAbsolute(full_url, request);
1.123 frystyk 1464: HT_FREE(rel);
1465: HT_FREE(full_url);
1466: HT_FREE(base_url);
1467: }
1468: return status;
1469: }
1470:
1471: /* Request metainformation about an anchor
1472: ** --------------------------------------
1473: ** Request the document referenced by the anchor
1474: ** Returns YES if request accepted, else NO
1475: */
1476: PUBLIC BOOL HTDeleteAnchor (HTAnchor * anchor, HTRequest * request)
1477: {
1478: if (anchor && request) {
1479: HTRequest_setAnchor(request, anchor);
1480: HTRequest_setMethod(request, METHOD_DELETE);
1.124 frystyk 1481: return launch_request(request, NO);
1482: }
1483: return NO;
1484: }
1485:
1486: /* ------------------------------------------------------------------------- */
1487: /* OPTIONS METHOD */
1488: /* ------------------------------------------------------------------------- */
1489:
1490: /* Options availeble for document from absolute name
1491: ** -------------------------------------------------
1492: ** Request a document referencd by an absolute URL.
1493: ** Returns YES if request accepted, else NO
1494: */
1495: PUBLIC BOOL HTOptionsAbsolute (const char * url, HTRequest * request)
1496: {
1497: if (url && request) {
1498: HTAnchor * anchor = HTAnchor_findAddress(url);
1499: return HTOptionsAnchor(anchor, request);
1500: }
1501: return NO;
1502: }
1503:
1504: /* Options available for document from relative name
1505: ** -------------------------------------------------
1506: ** Request a document referenced by a relative URL. The relative URL is
1507: ** made absolute by resolving it relative to the address of the 'base'
1508: ** anchor.
1509: ** Returns YES if request accepted, else NO
1510: */
1511: PUBLIC BOOL HTOptionsRelative (const char * relative,
1512: HTParentAnchor * base,
1513: HTRequest * request)
1514: {
1515: BOOL status = NO;
1516: if (relative && base && request) {
1517: char * rel = NULL;
1518: char * full_url = NULL;
1519: char * base_url = HTAnchor_address((HTAnchor *) base);
1520: StrAllocCopy(rel, relative);
1521: full_url = HTParse(HTStrip(rel), base_url,
1522: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1523: status = HTOptionsAbsolute(full_url, request);
1524: HT_FREE(rel);
1525: HT_FREE(full_url);
1526: HT_FREE(base_url);
1527: }
1528: return status;
1529: }
1530:
1531: /* Options available for document using Anchor
1532: ** -------------------------------------------
1533: ** Request the document referenced by the anchor
1534: ** Returns YES if request accepted, else NO
1535: */
1536: PUBLIC BOOL HTOptionsAnchor (HTAnchor * anchor, HTRequest * request)
1537: {
1538: if (anchor && request) {
1539: HTRequest_setAnchor(request, anchor);
1540: HTRequest_setMethod(request, METHOD_OPTIONS);
1541: return launch_request(request, NO);
1.123 frystyk 1542: }
1543: return NO;
1.1 timbl 1544: }
1.127 frystyk 1545:
1546: /* ------------------------------------------------------------------------- */
1547: /* TRACE METHOD */
1548: /* ------------------------------------------------------------------------- */
1549:
1550: /* Traces available for document from absolute name
1551: ** ------------------------------------------------
1552: ** Request a document referencd by an absolute URL.
1553: ** Returns YES if request accepted, else NO
1554: */
1555: PUBLIC BOOL HTTraceAbsolute (const char * url, HTRequest * request)
1556: {
1557: if (url && request) {
1558: HTAnchor * anchor = HTAnchor_findAddress(url);
1559: return HTTraceAnchor(anchor, request);
1560: }
1561: return NO;
1562: }
1563:
1564: /* Traces available for document from relative name
1565: ** ------------------------------------------------
1566: ** Request a document referenced by a relative URL. The relative URL is
1567: ** made absolute by resolving it relative to the address of the 'base'
1568: ** anchor.
1569: ** Returns YES if request accepted, else NO
1570: */
1571: PUBLIC BOOL HTTraceRelative (const char * relative,
1572: HTParentAnchor * base,
1573: HTRequest * request)
1574: {
1575: BOOL status = NO;
1576: if (relative && base && request) {
1577: char * rel = NULL;
1578: char * full_url = NULL;
1579: char * base_url = HTAnchor_address((HTAnchor *) base);
1580: StrAllocCopy(rel, relative);
1581: full_url = HTParse(HTStrip(rel), base_url,
1582: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1583: status = HTTraceAbsolute(full_url, request);
1584: HT_FREE(rel);
1585: HT_FREE(full_url);
1586: HT_FREE(base_url);
1587: }
1588: return status;
1589: }
1590:
1591: /* Trace available for document using Anchor
1592: ** -------------------------------------------
1593: ** Request the document referenced by the anchor
1594: ** Returns YES if request accepted, else NO
1595: */
1596: PUBLIC BOOL HTTraceAnchor (HTAnchor * anchor, HTRequest * request)
1597: {
1598: if (anchor && request) {
1599: HTRequest_setAnchor(request, anchor);
1600: HTRequest_setMethod(request, METHOD_TRACE);
1601: return launch_request(request, NO);
1602: }
1603: return NO;
1604: }
1605:
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