Annotation of libwww/Library/src/HTAccess.c, revision 1.136
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.
1.136 ! frystyk 6: ** @(#) $Id: HTAccess.c,v 1.135 1996/11/30 23:30:57 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);
260: HTAlert_setInteractive(NO);
261: HTConversion_add(list, "application/x-www-rules", "*/*", HTRules,
262: 1.0, 0.0, 0.0);
263: HTRequest_setConversion(request, list, YES);
264: status = HTLoadAbsolute(url, request);
265: HTConversion_deleteAll(list);
266: HTRequest_delete(request);
267: }
268: return status;
269: }
270:
271: /* --------------------------------------------------------------------------*/
272: /* GET WITH KEYWORDS (SEARCH) */
273: /* --------------------------------------------------------------------------*/
274:
275: /*
276: ** This function creates a URL with a searh part as defined by RFC 1866
277: ** Both the baseurl and the keywords must be escaped.
278: **
279: ** 1. The form field names and values are escaped: space
280: ** characters are replaced by `+', and then reserved characters
281: ** are escaped as per [URL]; that is, non-alphanumeric
282: ** characters are replaced by `%HH', a percent sign and two
283: ** hexadecimal digits representing the ASCII code of the
284: ** character. Line breaks, as in multi-line text field values,
285: ** are represented as CR LF pairs, i.e. `%0D%0A'.
286: **
287: ** 2. The fields are listed in the order they appear in the
288: ** document with the name separated from the value by `=' and
289: ** the pairs separated from each other by `&'. Fields with null
290: ** values may be omitted. In particular, unselected radio
291: ** buttons and checkboxes should not appear in the encoded
292: ** data, but hidden fields with VALUE attributes present
293: ** should.
294: **
295: ** NOTE - The URI from a query form submission can be
296: ** used in a normal anchor style hyperlink.
297: ** Unfortunately, the use of the `&' character to
298: ** separate form fields interacts with its use in SGML
299: ** attribute values as an entity reference delimiter.
300: ** For example, the URI `http://host/?x=1&y=2' must be
301: ** written `<a href="http://host/?x=1&y=2"' or `<a
302: ** href="http://host/?x=1&y=2">'.
303: **
304: ** HTTP server implementors, and in particular, CGI
305: ** implementors are encouraged to support the use of
306: ** `;' in place of `&' to save users the trouble of
307: ** escaping `&' characters this way.
308: */
309: PRIVATE char * query_url_encode (const char * baseurl, HTChunk * keywords)
310: {
311: char * fullurl = NULL;
312: if (baseurl && keywords && HTChunk_size(keywords)) {
313: int len = strlen(baseurl);
314: fullurl = (char *) HT_MALLOC(len + HTChunk_size(keywords) + 2);
315: sprintf(fullurl, "%s?%s", baseurl, HTChunk_data(keywords));
316: {
317: char * ptr = fullurl+len;
318: while (*ptr) {
319: if (*ptr == ' ') *ptr = '+';
320: ptr++;
321: }
322: }
323: }
324: return fullurl;
325: }
326:
327: PRIVATE char * form_url_encode (const char * baseurl, HTAssocList * formdata)
328: {
329: if (formdata) {
330: BOOL first = YES;
331: int cnt = HTList_count((HTList *) formdata);
332: HTChunk * fullurl = HTChunk_new(128);
333: HTAssoc * pres;
1.124 frystyk 334: if (baseurl) {
335: HTChunk_puts(fullurl, baseurl);
336: HTChunk_putc(fullurl, '?');
337: }
1.123 frystyk 338: while (cnt > 0) {
339: pres = (HTAssoc *) HTList_objectAt((HTList *) formdata, --cnt);
340: if (first)
341: first = NO;
342: else
343: HTChunk_putc(fullurl, '&'); /* Could use ';' instead */
344: HTChunk_puts(fullurl, HTAssoc_name(pres));
345: HTChunk_putc(fullurl, '=');
346: HTChunk_puts(fullurl, HTAssoc_value(pres));
347: }
348: return HTChunk_toCString(fullurl);
349: }
350: return NULL;
351: }
352:
353: /* Search a document from absolute name
354: ** ------------------------------------
355: ** Request a document referencd by an absolute URL appended with the
356: ** keywords given. The URL can NOT contain any fragment identifier!
357: ** The list of keywords must be a space-separated list and spaces will
358: ** be converted to '+' before the request is issued.
359: ** Returns YES if request accepted, else NO
360: */
361: PUBLIC BOOL HTSearchAbsolute (HTChunk * keywords,
362: const char * base,
363: HTRequest * request)
364: {
365: if (keywords && base && request) {
366: char * full = query_url_encode(base, keywords);
367: if (full) {
368: HTAnchor * anchor = HTAnchor_findAddress(full);
369: HTRequest_setAnchor(request, anchor);
370: HT_FREE(full);
1.124 frystyk 371: return launch_request(request, NO);
1.123 frystyk 372: }
373: }
374: return NO;
375: }
376:
377: /* Search a document from relative name
378: ** -------------------------------------
379: ** Request a document referenced by a relative URL. The relative URL is
380: ** made absolute by resolving it relative to the address of the 'base'
381: ** anchor.
382: ** Returns YES if request accepted, else NO
383: */
384: PUBLIC BOOL HTSearchRelative (HTChunk * keywords,
385: const char * relative,
386: HTParentAnchor * base,
387: HTRequest * request)
388: {
389: BOOL status = NO;
390: if (keywords && relative && base && request) {
391: char * full_url = NULL;
392: char * base_url = HTAnchor_address((HTAnchor *) base);
393: full_url = HTParse(relative, base_url,
394: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
395: status = HTSearchAbsolute(keywords, full_url, request);
396: HT_FREE(full_url);
397: HT_FREE(base_url);
398: }
399: return status;
400: }
401:
402: /*
403: ** Search a string
404: ** ---------------
405: ** This is the same as HTSearchAbsolute but instead of using a chunk
406: ** you can pass a string.
407: */
408: PUBLIC BOOL HTSearchString (const char * keywords,
409: HTAnchor * anchor,
410: HTRequest * request)
411: {
412: BOOL status = NO;
413: if (keywords && anchor && request) {
414: char * base_url = HTAnchor_address((HTAnchor *) anchor);
415: HTChunk * chunk = HTChunk_new(strlen(keywords)+2);
416: HTChunk_puts(chunk, keywords);
417: status = HTSearchAbsolute(chunk, base_url, request);
418: HT_FREE(base_url);
419: HTChunk_delete(chunk);
420: }
421: return status;
422: }
423:
1.90 frystyk 424: /* Search an Anchor
425: ** ----------------
426: ** Performs a keyword search on word given by the user. Adds the keyword
427: ** to the end of the current address and attempts to open the new address.
428: ** The list of keywords must be a space-separated list and spaces will
429: ** be converted to '+' before the request is issued.
430: ** Search can also be performed by HTLoadAbsolute() etc.
431: ** Returns YES if request accepted, else NO
432: */
1.123 frystyk 433: PUBLIC BOOL HTSearchAnchor (HTChunk * keywords,
434: HTAnchor * anchor,
435: HTRequest * request)
1.90 frystyk 436: {
1.99 frystyk 437: BOOL status = NO;
1.123 frystyk 438: if (keywords && anchor && request) {
439: char * base_url = HTAnchor_address(anchor);
440: status = HTSearchAbsolute(keywords, base_url, request);
1.114 frystyk 441: HT_FREE(base_url);
1.90 frystyk 442: }
1.99 frystyk 443: return status;
1.2 timbl 444: }
445:
1.123 frystyk 446: /* --------------------------------------------------------------------------*/
447: /* HANDLING FORMS USING GET AND POST */
448: /* --------------------------------------------------------------------------*/
1.2 timbl 449:
1.123 frystyk 450: /* Send a Form request using GET from absolute name
451: ** ------------------------------------------------
1.90 frystyk 452: ** Request a document referencd by an absolute URL appended with the
1.123 frystyk 453: ** formdata given. The URL can NOT contain any fragment identifier!
454: ** The list of form data must be given as an association list where
455: ** the name is the field name and the value is the value of the field.
456: ** Returns YES if request accepted, else NO
457: */
458: PUBLIC BOOL HTGetFormAbsolute (HTAssocList * formdata,
459: const char * base,
460: HTRequest * request)
461: {
462: if (formdata && base && request) {
463: char * full = form_url_encode(base, formdata);
464: if (full) {
465: HTAnchor * anchor = HTAnchor_findAddress(full);
466: HTRequest_setAnchor(request, anchor);
467: HT_FREE(full);
1.124 frystyk 468: return launch_request(request, NO);
1.123 frystyk 469: }
470: }
471: return NO;
472: }
473:
474: /* Send a Form request using GET from relative name
475: ** ------------------------------------------------
476: ** Request a document referencd by a relative URL appended with the
477: ** formdata given. The URL can NOT contain any fragment identifier!
478: ** The list of form data must be given as an association list where
479: ** the name is the field name and the value is the value of the field.
480: ** Returns YES if request accepted, else NO
481: */
482: PUBLIC BOOL HTGetFormRelative (HTAssocList * formdata,
483: const char * relative,
484: HTParentAnchor * base,
485: HTRequest * request)
486: {
487: BOOL status = NO;
488: if (formdata && relative && base && request) {
489: char * full_url = NULL;
490: char * base_url = HTAnchor_address((HTAnchor *) base);
491: full_url=HTParse(relative, base_url,
492: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
493: status = HTGetFormAbsolute(formdata, full_url, request);
494: HT_FREE(full_url);
495: HT_FREE(base_url);
496: }
497: return status;
498: }
499:
500: /* Send a Form request using GET from an anchor
501: ** --------------------------------------------
502: ** Request a document referencd by an anchor object appended with the
503: ** formdata given. The URL can NOT contain any fragment identifier!
504: ** The list of form data must be given as an association list where
505: ** the name is the field name and the value is the value of the field.
1.90 frystyk 506: ** Returns YES if request accepted, else NO
507: */
1.123 frystyk 508: PUBLIC BOOL HTGetFormAnchor (HTAssocList * formdata,
509: HTAnchor * anchor,
510: HTRequest * request)
511: {
512: BOOL status = NO;
513: if (formdata && anchor && request) {
514: char * base_url = HTAnchor_address((HTAnchor *) anchor);
515: status = HTGetFormAbsolute(formdata, base_url, request);
516: HT_FREE(base_url);
517: }
518: return status;
519: }
520:
521: PRIVATE int HTEntity_callback (HTRequest * request, HTStream * target)
522: {
523: HTParentAnchor * entity = HTRequest_entityAnchor(request);
1.124 frystyk 524: if (WWWTRACE) HTTrace("Posting Data from callback function\n");
1.123 frystyk 525: if (!request || !entity || !target) return HT_ERROR;
526: {
1.126 frystyk 527: BOOL chunking = NO;
1.123 frystyk 528: int status;
529: char * document = (char *) HTAnchor_document(entity);
530: int len = HTAnchor_length(entity);
1.126 frystyk 531: if (!document) {
532: if (PROT_TRACE) HTTrace("Posting Data No document\n");
533: return HT_ERROR;
534: }
535:
536: /*
537: ** If the length is unknown (-1) then see if the document is a text
538: ** type and in that case take the strlen. If not then we don't know
539: ** how much data we can write and must stop
540: */
541: if (len < 0) {
542: HTFormat actual = HTAnchor_format(entity);
543: HTFormat tmplate = HTAtom_for("text/*");
544: if (HTMIMEMatch(tmplate, actual)) {
545: len = strlen(document); /* Naive! */
546: chunking = YES;
547: } else {
548: if (PROT_TRACE)
549: HTTrace("Posting Data Must know the length of document %p\n",
550: document);
551: return HT_ERROR;
552: }
553: }
554:
555: /* Send the data down the pipe */
1.123 frystyk 556: status = (*target->isa->put_block)(target, document, len);
557: if (status == HT_WOULD_BLOCK) {
1.124 frystyk 558: if (PROT_TRACE)HTTrace("Posting Data Target WOULD BLOCK\n");
1.123 frystyk 559: return HT_WOULD_BLOCK;
560: } else if (status == HT_PAUSE) {
1.126 frystyk 561: if (PROT_TRACE) HTTrace("Posting Data Target PAUSED\n");
1.123 frystyk 562: return HT_PAUSE;
1.126 frystyk 563: } else if (chunking && status == HT_OK) {
564: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED using chunked\n");
565: return (*target->isa->put_block)(target, "", 0);
1.136 ! frystyk 566: } else if (status == HT_LOADED || status == HT_OK) {
! 567: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED\n");
! 568: (*target->isa->flush)(target);
! 569: return HT_LOADED;
! 570: } else if (status > 0) { /* Stream specific return code */
! 571: if (PROT_TRACE) HTTrace("Posting Data. Target returns %d\n", status);
1.123 frystyk 572: return status;
573: } else { /* we have a real error */
1.129 frystyk 574: if (PROT_TRACE) HTTrace("Posting Data Target ERROR %d\n", status);
1.123 frystyk 575: return status;
576: }
577: }
578: }
579:
580: /* Send a Form request using POST from absolute name
581: ** -------------------------------------------------
582: ** Request a document referencd by an absolute URL appended with the
583: ** formdata given. The URL can NOT contain any fragment identifier!
584: ** The list of form data must be given as an association list where
585: ** the name is the field name and the value is the value of the field.
586: */
587: PUBLIC HTParentAnchor * HTPostFormAbsolute (HTAssocList * formdata,
588: const char * base,
589: HTRequest * request)
590: {
591: if (formdata && base && request) {
592: HTAnchor * anchor = HTAnchor_findAddress(base);
593: return HTPostFormAnchor(formdata, anchor, request);
594: }
595: return NULL;
596: }
597:
598: /* Send a Form request using POST from relative name
599: ** -------------------------------------------------
600: ** Request a document referencd by a relative URL appended with the
601: ** formdata given. The URL can NOT contain any fragment identifier!
602: ** The list of form data must be given as an association list where
603: ** the name is the field name and the value is the value of the field.
604: */
605: PUBLIC HTParentAnchor * HTPostFormRelative (HTAssocList * formdata,
606: const char * relative,
607: HTParentAnchor * base,
608: HTRequest * request)
1.90 frystyk 609: {
1.123 frystyk 610: HTParentAnchor * postanchor = NULL;
611: if (formdata && relative && base && request) {
612: char * full_url = NULL;
613: char * base_url = HTAnchor_address((HTAnchor *) base);
614: full_url=HTParse(relative, base_url,
615: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
616: postanchor = HTPostFormAbsolute(formdata, full_url, request);
617: HT_FREE(full_url);
618: HT_FREE(base_url);
619: }
620: return postanchor;
621: }
622:
623: /* Send a Form request using POST from an anchor
624: ** ---------------------------------------------
625: ** Request a document referencd by an anchor object appended with the
626: ** formdata given. The URL can NOT contain any fragment identifier!
627: ** The list of form data must be given as an association list where
628: ** the name is the field name and the value is the value of the field.
629: */
630: PUBLIC HTParentAnchor * HTPostFormAnchor (HTAssocList * formdata,
631: HTAnchor * anchor,
632: HTRequest * request)
633: {
634: HTParentAnchor * postanchor = NULL;
635: if (formdata && anchor && request) {
636: HTUserProfile * up = HTRequest_userProfile(request);
637: char * tmpfile = HTGetTmpFileName(HTUserProfile_tmp(up));
638: char * tmpurl = HTParse(tmpfile, "file:", PARSE_ALL);
639: char * form_encoded = form_url_encode(NULL, formdata);
640: if (form_encoded) {
641:
642: /*
643: ** Now create a new anchor for the post data and set up
644: ** the rest of the metainformation we know about this anchor. The
645: ** tmp anchor may actually already exist from previous postings.
646: */
647: postanchor = (HTParentAnchor *) HTAnchor_findAddress(tmpurl);
648: HTAnchor_clearHeader(postanchor);
649: HTAnchor_setDocument(postanchor, form_encoded);
650: HTAnchor_setLength(postanchor, strlen(form_encoded));
651: HTAnchor_setFormat(postanchor, WWW_FORM);
652:
653: /*
654: ** Bind the temporary anchor to the anchor that will contain the
655: ** response
656: */
657: HTLink_removeAll((HTAnchor *) postanchor);
658: HTLink_add((HTAnchor *) postanchor, (HTAnchor *) anchor,
659: NULL, METHOD_POST);
660:
661: /* Set up the request object */
662: HTRequest_addGnHd(request, HT_G_DATE); /* Send date header */
663: HTRequest_setAnchor(request, anchor);
664: HTRequest_setEntityAnchor(request, postanchor);
665: HTRequest_setMethod(request, METHOD_POST);
666:
667: /* Add the post form callback function to provide the form data */
668: HTRequest_setPostCallback(request, HTEntity_callback);
669:
670: /* Now start the load normally */
1.124 frystyk 671: launch_request(request, NO);
1.123 frystyk 672: }
673: HT_FREE(tmpfile);
674: HT_FREE(tmpurl);
1.90 frystyk 675: }
1.123 frystyk 676: return postanchor;
1.57 howcome 677: }
678:
1.70 frystyk 679: /* --------------------------------------------------------------------------*/
1.124 frystyk 680: /* PUT A DOCUMENT */
681: /* --------------------------------------------------------------------------*/
1.125 frystyk 682: PRIVATE BOOL setup_anchors (HTRequest * request,
1.131 frystyk 683: HTParentAnchor * source, HTParentAnchor * dest,
684: HTMethod method)
1.124 frystyk 685: {
1.131 frystyk 686: if (!(method & (METHOD_PUT | METHOD_POST))) {
687: if (APP_TRACE) HTTrace("Posting..... Bad method\n");
688: return NO;
689: }
690:
1.124 frystyk 691: /*
1.127 frystyk 692: ** Check whether we know if it is possible to PUT to this destination.
693: ** We both check the local set of allowed methods in the anchor and any
694: ** site information that we may have about the location of the origin
695: ** server.
1.124 frystyk 696: */
697: {
1.131 frystyk 698: char * addr = HTAnchor_address((HTAnchor *) source);
699: char * hostname = HTParse(addr, "", PARSE_HOST);
700: HTHost * host = HTHost_find(hostname);
701: HTMethod public_methods = HTHost_publicMethods(host);
1.134 frystyk 702: HTMethod private_methods = HTAnchor_allow(dest);
1.131 frystyk 703: HT_FREE(hostname);
704: HT_FREE(addr);
705: if (!(method & (private_methods | public_methods))) {
1.124 frystyk 706: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
707: if (prompt) {
708: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_METHOD,
709: NULL, NULL, NULL) != YES)
710: return NO;
711: }
712: }
713: }
714:
715: /*
716: ** Bind the source anchor to the dest anchor that will contain the
717: ** response. If link already exists then ask is we should do it again.
718: ** If so then remove the old link and replace it with a new one.
719: */
720: {
721: HTLink *link = HTLink_find((HTAnchor *) source, (HTAnchor *) dest);
722: if (link && HTLink_method(link) == METHOD_PUT) {
723: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
724: if (prompt) {
725: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_REDO,
726: NULL, NULL, NULL) != YES)
727: return NO;
728: }
729: HTLink_remove((HTAnchor *) source, (HTAnchor *) dest);
730: }
731: HTLink_add((HTAnchor*) source, (HTAnchor*) dest, NULL, METHOD_PUT);
732: }
733: return YES;
734: }
735:
736: /* Send an Anchor using PUT from absolute name
737: ** -------------------------------------------
738: ** Upload a document referenced by an absolute URL appended.
739: ** The URL can NOT contain any fragment identifier!
740: ** The list of form data must be given as an association list where
741: ** the name is the field name and the value is the value of the field.
742: */
743: PUBLIC BOOL HTPutAbsolute (HTParentAnchor * source,
744: const char * destination,
745: HTRequest * request)
746: {
747: if (source && destination && request) {
748: HTAnchor * dest = HTAnchor_findAddress(destination);
749: return HTPutAnchor(source, dest, request);
750: }
751: return NO;
752: }
753:
754: /* Send an Anchor using PUT from relative name
755: ** -------------------------------------------
756: ** Upload a document referenced by a relative URL appended.
757: ** The URL can NOT contain any fragment identifier!
758: ** The list of form data must be given as an association list where
759: ** the name is the field name and the value is the value of the field.
760: */
761: PUBLIC BOOL HTPutRelative (HTParentAnchor * source,
762: const char * relative,
763: HTParentAnchor * destination_base,
764: HTRequest * request)
765: {
766: if (source && relative && destination_base && request) {
767: BOOL status;
768: char * full_url = NULL;
769: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
770: full_url=HTParse(relative, base_url,
771: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
772: status = HTPutAbsolute(source, full_url, request);
773: HT_FREE(full_url);
774: HT_FREE(base_url);
775: return status;
776: }
777: return NO;
778: }
779:
780: /* Send an Anchor using PUT from an anchor
781: ** ---------------------------------------
782: ** Upload a document referenced by an anchor object appended
783: ** The URL can NOT contain any fragment identifier!
784: ** The list of form data must be given as an association list where
785: ** the name is the field name and the value is the value of the field.
786: */
787: PUBLIC BOOL HTPutAnchor (HTParentAnchor * source,
788: HTAnchor * destination,
789: HTRequest * request)
790: {
791: HTParentAnchor * dest = HTAnchor_parent(destination);
792: if (source && dest && request) {
1.131 frystyk 793: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 794:
795: /* Set up the request object */
796: HTRequest_addGnHd(request, HT_G_DATE);
1.133 frystyk 797: HTRequest_addRqHd(request, HT_C_IF_MATCH);
1.124 frystyk 798: HTRequest_setEntityAnchor(request, source);
799: HTRequest_setMethod(request, METHOD_PUT);
800: HTRequest_setAnchor(request, destination);
801:
802: /* Add the entity callback function to provide the form data */
803: HTRequest_setPostCallback(request, HTEntity_callback);
804:
805: /* Now start the load normally */
806: return launch_request(request, NO);
807: }
808: }
809: return NO;
810: }
811:
1.125 frystyk 812: /* Send an Anchor using POST from absolute name
813: ** -------------------------------------------
814: ** Upload a document referenced by an absolute URL appended.
815: ** The URL can NOT contain any fragment identifier!
816: ** The list of form data must be given as an association list where
817: ** the name is the field name and the value is the value of the field.
818: */
819: PUBLIC BOOL HTPostAbsolute (HTParentAnchor * source,
820: const char * destination,
821: HTRequest * request)
822: {
823: if (source && destination && request) {
824: HTAnchor * dest = HTAnchor_findAddress(destination);
825: return HTPostAnchor(source, dest, request);
826: }
827: return NO;
828: }
829:
830: /* Send an Anchor using POST from relative name
831: ** -------------------------------------------
832: ** Upload a document referenced by a relative URL appended.
833: ** The URL can NOT contain any fragment identifier!
834: ** The list of form data must be given as an association list where
835: ** the name is the field name and the value is the value of the field.
836: */
837: PUBLIC BOOL HTPostRelative (HTParentAnchor * source,
838: const char * relative,
839: HTParentAnchor * destination_base,
840: HTRequest * request)
841: {
842: if (source && relative && destination_base && request) {
843: BOOL status;
844: char * full_url = NULL;
845: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
846: full_url=HTParse(relative, base_url,
847: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
848: status = HTPostAbsolute(source, full_url, request);
849: HT_FREE(full_url);
850: HT_FREE(base_url);
851: return status;
852: }
853: return NO;
854: }
855:
856: /* Send an Anchor using POST from an anchor
857: ** ---------------------------------------
858: ** Upload a document referenced by an anchor object appended
859: ** The URL can NOT contain any fragment identifier!
860: ** The list of form data must be given as an association list where
861: ** the name is the field name and the value is the value of the field.
862: */
863: PUBLIC BOOL HTPostAnchor (HTParentAnchor * source,
864: HTAnchor * destination,
865: HTRequest * request)
866: {
867: HTParentAnchor * dest = HTAnchor_parent(destination);
868: if (source && dest && request) {
1.131 frystyk 869: if (setup_anchors(request, source, dest, METHOD_POST) == YES) {
1.125 frystyk 870:
871: /* Set up the request object */
872: HTRequest_addGnHd(request, HT_G_DATE);
873: HTRequest_setEntityAnchor(request, source);
874: HTRequest_setMethod(request, METHOD_POST);
875: HTRequest_setAnchor(request, destination);
876:
877: /* Add the entity callback function to provide the form data */
878: HTRequest_setPostCallback(request, HTEntity_callback);
879:
880: /* Now start the load normally */
881: return launch_request(request, NO);
882: }
883: }
884: return NO;
885: }
886:
1.124 frystyk 887: /* Send an Anchor using PUT from absolute name
888: ** -------------------------------------------
889: ** Upload a document referenced by an absolute URL appended.
890: ** The URL can NOT contain any fragment identifier!
891: ** The list of form data must be given as an association list where
892: ** the name is the field name and the value is the value of the field.
893: */
894: PUBLIC BOOL HTPutStructuredAbsolute (HTParentAnchor * source,
895: const char * destination,
896: HTRequest * request,
897: HTPostCallback * input)
898: {
899: if (source && destination && request && input) {
900: HTAnchor * dest = HTAnchor_findAddress(destination);
901: return HTPutStructuredAnchor(source, dest, request, input);
902: }
903: return NO;
904: }
905:
906: /* Send an Anchor using PUT from relative name
907: ** -------------------------------------------
908: ** Upload a document referenced by a relative URL appended.
909: ** The URL can NOT contain any fragment identifier!
910: ** The list of form data must be given as an association list where
911: ** the name is the field name and the value is the value of the field.
912: */
913: PUBLIC BOOL HTPutStructuredRelative (HTParentAnchor * source,
914: const char * relative,
915: HTParentAnchor * destination_base,
916: HTRequest * request,
917: HTPostCallback * input)
918: {
919: if (source && relative && destination_base && request && input) {
920: BOOL status;
921: char * full_url = NULL;
922: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
923: full_url=HTParse(relative, base_url,
924: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
925: status = HTPutStructuredAbsolute(source, full_url, request, input);
926: HT_FREE(full_url);
927: HT_FREE(base_url);
928: return status;
929: }
930: return NO;
931: }
932:
933: /* Send an Anchor using PUT from an anchor
934: ** ---------------------------------------
935: ** Upload a document referenced by an anchor object appended
936: ** The URL can NOT contain any fragment identifier!
937: ** The list of form data must be given as an association list where
938: ** the name is the field name and the value is the value of the field.
939: */
940: PUBLIC BOOL HTPutStructuredAnchor (HTParentAnchor * source,
941: HTAnchor * destination,
942: HTRequest * request,
943: HTPostCallback * input)
944: {
945: HTParentAnchor * dest = HTAnchor_parent(destination);
946: if (source && dest && request) {
1.131 frystyk 947: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 948:
949: /* Set up the request object */
950: HTRequest_addGnHd(request, HT_G_DATE);
1.133 frystyk 951: HTRequest_addRqHd(request, HT_C_IF_MATCH);
1.124 frystyk 952: HTRequest_setEntityAnchor(request, source);
953: HTRequest_setMethod(request, METHOD_PUT);
954: HTRequest_setAnchor(request, destination);
955:
956: /* Add the entity callback function to provide the form data */
957: HTRequest_setPostCallback(request, input);
958:
959: /* Now start the load normally */
960: return launch_request(request, NO);
961: }
962: }
963: return NO;
964: }
965:
966: /*
967: ** After filter for handling PUT of document. We should now have the
968: */
1.134 frystyk 969: PRIVATE int HTSaveFilter (HTRequest * request, HTResponse * response,
970: void * param, int status)
1.124 frystyk 971: {
972: HTPutContext * me = (HTPutContext *) param;
973: if (APP_TRACE)
974: HTTrace("Save Filter. Using context %p with state %c\n",
975: me, me->state+0x30);
976:
977: /*
1.125 frystyk 978: ** Just ignore authentication in the hope that some other filter will
979: ** handle this.
980: */
981: if (status == HT_NO_ACCESS || status == HT_NO_PROXY_ACCESS) {
982: if (APP_TRACE) HTTrace("Save Filter. Waiting for authentication\n");
983: return HT_OK;
984: }
985:
986: /*
1.124 frystyk 987: ** If either the source or the destination has moved then ask the user
988: ** what to do. If there is no user then stop
989: */
990: if (status == HT_TEMP_REDIRECT || status == HT_PERM_REDIRECT) {
991: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
1.134 frystyk 992: HTAnchor * redirection = HTResponse_redirection(response);
1.124 frystyk 993: if (prompt && redirection) {
1.125 frystyk 994: if (me->state == HT_LOAD_SOURCE) {
1.124 frystyk 995: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_SOURCE_MOVED,
996: NULL, NULL, NULL) == YES) {
997: me->source = HTAnchor_parent(redirection);
1.128 frystyk 998: } else {
999: /*
1000: ** Make sure that the operation stops
1001: */
1002: me->state = HT_ABORT_SAVE;
1.124 frystyk 1003: }
1004: } else {
1005: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_DESTINATION_MOVED,
1006: NULL, NULL, NULL) == YES) {
1007: me->destination = redirection;
1.128 frystyk 1008: } else {
1009: /*
1010: ** Make sure that the operation stops
1011: */
1012: me->state = HT_ABORT_SAVE;
1.124 frystyk 1013: }
1014: }
1015: }
1.128 frystyk 1016: return HT_OK;
1.124 frystyk 1017: }
1018:
1019: /*
1.125 frystyk 1020: ** If we succeeded getting the source then start the PUT itself. Otherwise
1021: ** cleanup the mess
1.124 frystyk 1022: */
1.125 frystyk 1023: if (me->state == HT_LOAD_SOURCE && status == HT_LOADED &&
1024: !HTError_hasSeverity(HTRequest_error(request), ERR_INFO)) {
1.124 frystyk 1025:
1026: /* Swap the document in the anchor with the new one */
1027: me->placeholder = HTAnchor_document(me->source);
1028: HTAnchor_setDocument(me->source, HTChunk_data(me->document));
1029:
1030: /* Set up the request object */
1031: HTRequest_addGnHd(request, HT_G_DATE);
1.133 frystyk 1032: HTRequest_addRqHd(request, HT_C_IF_MATCH);
1.124 frystyk 1033: HTRequest_setEntityAnchor(request, me->source);
1034: HTRequest_setMethod(request, METHOD_PUT);
1035: HTRequest_setAnchor(request, me->destination);
1036: HTRequest_setOutputFormat(request, me->format);
1037: HTRequest_setOutputStream(request, me->target);
1038:
1.125 frystyk 1039: /* Turn progress notifications back on */
1040: HTRequest_setInternal(request, NO);
1041:
1.124 frystyk 1042: /* Add the entity callback function to provide the form data */
1043: HTRequest_setPostCallback(request, HTEntity_callback);
1044:
1045: /* Now start the load normally */
1046: me->state = launch_request(request, NO) ?
1.125 frystyk 1047: HT_SAVE_DEST : HT_LOAD_SOURCE;
1.124 frystyk 1048:
1049: /*
1050: ** By returning HT_ERROR we make sure that this is the last handler to
1051: ** be called. We do this as we don't want any other filter to delete
1052: ** the request object now when we have just started a new one
1053: ** ourselves
1054: */
1055: return HT_ERROR;
1056:
1057: } else {
1058: HTRequest_deleteAfter(request, HTSaveFilter);
1059: HTAnchor_setDocument(me->source, me->placeholder);
1060: HTChunk_delete(me->document);
1061: HT_FREE(me);
1062: }
1063: return HT_OK;
1064: }
1065:
1066: /* Send an Anchor using PUT from absolute name
1067: ** -------------------------------------------
1068: ** Upload a document referenced by an absolute URL appended.
1069: ** The URL can NOT contain any fragment identifier!
1070: ** The list of form data must be given as an association list where
1071: ** the name is the field name and the value is the value of the field.
1072: */
1073: PUBLIC BOOL HTPutDocumentAbsolute (HTParentAnchor * source,
1074: const char * destination,
1075: HTRequest * request)
1076: {
1077: if (source && destination && request) {
1078: HTAnchor * dest = HTAnchor_findAddress(destination);
1079: return HTPutDocumentAnchor(source, dest, request);
1080: }
1081: return NO;
1082: }
1083:
1084: /* Send an Anchor using PUT from relative name
1085: ** -------------------------------------------
1086: ** Upload a document referenced by a relative URL appended.
1087: ** The URL can NOT contain any fragment identifier!
1088: ** The list of form data must be given as an association list where
1089: ** the name is the field name and the value is the value of the field.
1090: */
1091: PUBLIC BOOL HTPutDocumentRelative (HTParentAnchor * source,
1092: const char * relative,
1093: HTParentAnchor * destination_base,
1094: HTRequest * request)
1095: {
1096: if (source && relative && destination_base && request) {
1097: BOOL status;
1098: char * full_url = NULL;
1099: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
1100: full_url=HTParse(relative, base_url,
1101: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1102: status = HTPutDocumentAbsolute(source, full_url, request);
1103: HT_FREE(full_url);
1104: HT_FREE(base_url);
1105: return status;
1106: }
1107: return NO;
1108: }
1109:
1110: /* Send an Anchor using PUT from an anchor
1111: ** ---------------------------------------
1112: ** Upload a document referenced by an anchor object appended
1113: ** The URL can NOT contain any fragment identifier!
1114: ** The source document is first loaded into memory and then the PUT
1115: ** to the remote server is done using the memory version
1116: */
1117: PUBLIC BOOL HTPutDocumentAnchor (HTParentAnchor * source,
1118: HTAnchor * destination,
1119: HTRequest * request)
1120: {
1121: HTParentAnchor * dest = HTAnchor_parent(destination);
1122: if (source && dest && request) {
1.131 frystyk 1123: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 1124: HTPutContext * context = NULL;
1125:
1126: /*
1127: ** First we register an AFTER filter that can check the result
1128: ** of the source load if success then it can start the PUT
1129: ** operation to the destination.
1130: */
1131: if (!(context=(HTPutContext *) HT_CALLOC(1, sizeof(HTPutContext))))
1132: HT_OUTOFMEM("HTPutDocumentAnchor");
1133: context->source = source;
1134: context->destination = destination;
1.134 frystyk 1135:
1136: /*
1137: ** We register the after filter with a NULL template as we
1138: ** don't know the source of the data.
1139: */
1140: HTRequest_addAfter(request, HTSaveFilter, NULL, context, HT_ALL,
1141: HT_FILTER_FIRST, NO);
1.125 frystyk 1142:
1143: /* Turn off progress notifications */
1144: HTRequest_setInternal(request, YES);
1.124 frystyk 1145:
1146: /*
1147: ** We make sure that we are not using a memory cached element.
1148: ** It's OK to use a file cached element!
1149: */
1.133 frystyk 1150: HTRequest_setReloadMode(request, HT_CACHE_FLUSH_MEM);
1.124 frystyk 1151:
1152: /*
1153: ** Now we load the source document into a chunk. We specify that
1154: ** we want the document ASIS from the source location.
1155: */
1156: context->format = HTRequest_outputFormat(request);
1157: context->target = HTRequest_outputStream(request);
1158: HTRequest_setOutputFormat(request, WWW_SOURCE);
1159: context->document = HTLoadAnchorToChunk((HTAnchor*)source,request);
1160: if (context->document == NULL) {
1161: if (APP_TRACE) HTTrace("Put Document No source\n");
1162: HT_FREE(context);
1163: return NO;
1164: }
1165: return YES;
1166: }
1167: }
1168: return NO;
1169: }
1170:
1171: /* ------------------------------------------------------------------------- */
1.70 frystyk 1172:
1.90 frystyk 1173: /* Copy an anchor
1.70 frystyk 1174: ** --------------
1.90 frystyk 1175: ** Fetch the URL (possibly local file URL) and send it using either PUT
1176: ** or POST to the remote destination using HTTP. The caller can decide the
1177: ** exact method used and which HTTP header fields to transmit by setting
1178: ** the user fields in the request structure.
1.92 frystyk 1179: ** If posting to NNTP then we can't dispatch at this level but must pass
1180: ** the source anchor to the news module that then takes all the refs
1181: ** to NNTP and puts into the "newsgroups" header
1.70 frystyk 1182: */
1.109 frystyk 1183: PUBLIC BOOL HTCopyAnchor (HTAnchor * src_anchor, HTRequest * main_dest)
1.80 frystyk 1184: {
1.106 frystyk 1185: HTRequest * src_req;
1186: HTList * cur;
1.109 frystyk 1187: if (!src_anchor || !main_dest) {
1.115 eric 1188: if (WWWTRACE) HTTrace("Copy........ BAD ARGUMENT\n");
1.90 frystyk 1189: return NO;
1.109 frystyk 1190: }
1.70 frystyk 1191:
1.112 frystyk 1192: /* Set the source anchor */
1193: main_dest->source_anchor = HTAnchor_parent(src_anchor);
1194:
1.80 frystyk 1195: /* Build the POST web if not already there */
1.109 frystyk 1196: if (!main_dest->source) {
1197: src_req = HTRequest_dupInternal(main_dest); /* Get a duplicate */
1.80 frystyk 1198: HTAnchor_clearHeader((HTParentAnchor *) src_anchor);
1.109 frystyk 1199: src_req->method = METHOD_GET;
1.133 frystyk 1200: src_req->reload = HT_CACHE_FLUSH_MEM;
1.104 frystyk 1201: src_req->output_stream = NULL;
1.80 frystyk 1202: src_req->output_format = WWW_SOURCE; /* We want source (for now) */
1203:
1204: /* Set up the main link in the source anchor */
1205: {
1.106 frystyk 1206: HTLink * main_link = HTAnchor_mainLink((HTAnchor *) src_anchor);
1207: HTAnchor *main_anchor = HTLink_destination(main_link);
1208: HTMethod method = HTLink_method(main_link);
1.85 frystyk 1209: if (!main_link || method==METHOD_INVALID) {
1.91 frystyk 1210: if (WWWTRACE)
1.115 eric 1211: HTTrace("Copy Anchor. No destination found or unspecified method\n");
1.80 frystyk 1212: HTRequest_delete(src_req);
1.90 frystyk 1213: return NO;
1.80 frystyk 1214: }
1.109 frystyk 1215: main_dest->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1216: main_dest->reload = HT_CACHE_VALIDATE;
1.109 frystyk 1217: main_dest->method = method;
1218: main_dest->input_format = WWW_SOURCE;
1219: HTRequest_addDestination(src_req, main_dest);
1220: if (HTLoadAnchor(main_anchor, main_dest) == NO)
1221: return NO;
1.80 frystyk 1222: }
1.78 frystyk 1223:
1.80 frystyk 1224: /* For all other links in the source anchor */
1.106 frystyk 1225: if ((cur = HTAnchor_subLinks(src_anchor))) {
1226: HTLink * pres;
1.109 frystyk 1227: while ((pres = (HTLink *) HTList_nextObject(cur))) {
1.106 frystyk 1228: HTAnchor *dest = HTLink_destination(pres);
1229: HTMethod method = HTLink_method(pres);
1.80 frystyk 1230: HTRequest *dest_req;
1231: if (!dest || method==METHOD_INVALID) {
1.91 frystyk 1232: if (WWWTRACE)
1.115 eric 1233: HTTrace("Copy Anchor. Bad anchor setup %p\n",
1.80 frystyk 1234: dest);
1.90 frystyk 1235: return NO;
1.80 frystyk 1236: }
1.109 frystyk 1237: dest_req = HTRequest_dupInternal(main_dest);
1.107 frystyk 1238: dest_req->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1239: dest_req->reload = HT_CACHE_VALIDATE;
1.80 frystyk 1240: dest_req->method = method;
1.104 frystyk 1241: dest_req->output_stream = NULL;
1242: dest_req->output_format = WWW_SOURCE;
1.109 frystyk 1243: HTRequest_addDestination(src_req, dest_req);
1.104 frystyk 1244:
1.90 frystyk 1245: if (HTLoadAnchor(dest, dest_req) == NO)
1246: return NO;
1.80 frystyk 1247: }
1248: }
1249: } else { /* Use the existing Post Web and restart it */
1.109 frystyk 1250: src_req = main_dest->source;
1.80 frystyk 1251: if (src_req->mainDestination)
1.124 frystyk 1252: if (launch_request(main_dest, NO) == NO)
1.90 frystyk 1253: return NO;
1.80 frystyk 1254: if (src_req->destinations) {
1.106 frystyk 1255: HTRequest * pres;
1256: cur = HTAnchor_subLinks(src_anchor);
1.80 frystyk 1257: while ((pres = (HTRequest *) HTList_nextObject(cur)) != NULL) {
1.124 frystyk 1258: if (launch_request(pres, NO) == NO)
1.90 frystyk 1259: return NO;
1.80 frystyk 1260: }
1261: }
1.78 frystyk 1262: }
1263:
1.80 frystyk 1264: /* Now open the source */
1265: return HTLoadAnchor(src_anchor, src_req);
1.70 frystyk 1266: }
1267:
1.90 frystyk 1268: /* Upload an Anchor
1.70 frystyk 1269: ** ----------------
1.111 frystyk 1270: ** This function can be used to send data along with a request to a remote
1271: ** server. It can for example be used to POST form data to a remote HTTP
1272: ** server - or it can be used to post a newsletter to a NNTP server. In
1273: ** either case, you pass a callback function which the request calls when
1274: ** the remote destination is ready to accept data. In this callback
1275: ** you get the current request object and a stream into where you can
1276: ** write data. It is very important that you return the value returned
1277: ** by this stream to the Library so that it knows what to do next. The
1278: ** reason is that the outgoing stream might block or an error may
1279: ** occur and in that case the Library must know about it. The source
1280: ** anchor represents the data object in memory and it points to
1281: ** the destination anchor by using the POSTWeb method. The source anchor
1282: ** contains metainformation about the data object in memory and the
1283: ** destination anchor represents the reponse from the remote server.
1.90 frystyk 1284: ** Returns YES if request accepted, else NO
1285: */
1.111 frystyk 1286: PUBLIC BOOL HTUploadAnchor (HTAnchor * source_anchor,
1287: HTRequest * request,
1288: HTPostCallback * callback)
1289: {
1290: HTLink * link = HTAnchor_mainLink((HTAnchor *) source_anchor);
1291: HTAnchor * dest_anchor = HTLink_destination(link);
1292: HTMethod method = HTLink_method(link);
1293: if (!link || method==METHOD_INVALID || !callback) {
1294: if (WWWTRACE)
1.115 eric 1295: HTTrace("Upload...... No destination found or unspecified method\n");
1.90 frystyk 1296: return NO;
1.109 frystyk 1297: }
1.111 frystyk 1298: request->GenMask |= HT_G_DATE; /* Send date header */
1.133 frystyk 1299: request->reload = HT_CACHE_VALIDATE;
1.111 frystyk 1300: request->method = method;
1301: request->source_anchor = HTAnchor_parent(source_anchor);
1302: request->PostCallback = callback;
1303: return HTLoadAnchor(dest_anchor, request);
1304: }
1305:
1306: /* POST Callback Handler
1307: ** ---------------------
1308: ** If you do not want to handle the stream interface on your own, you
1309: ** can use this function which writes the source anchor hyperdoc to the
1310: ** target stream for the anchor upload and also handles the return value
1311: ** from the stream. If you don't want to write the source anchor hyperdoc
1312: ** then you can register your own callback function that can get the data
1313: ** you want.
1314: */
1315: PUBLIC int HTUpload_callback (HTRequest * request, HTStream * target)
1316: {
1.115 eric 1317: if (WWWTRACE) HTTrace("Uploading... from callback function\n");
1.111 frystyk 1318: if (!request || !request->source_anchor || !target) return HT_ERROR;
1319: {
1320: int status;
1321: HTParentAnchor * source = request->source_anchor;
1322: char * document = (char *) HTAnchor_document(request->source_anchor);
1323: int len = HTAnchor_length(source);
1324: if (len < 0) {
1325: len = strlen(document);
1326: HTAnchor_setLength(source, len);
1327: }
1328: status = (*target->isa->put_block)(target, document, len);
1329: if (status == HT_OK)
1330: return (*target->isa->flush)(target);
1331: if (status == HT_WOULD_BLOCK) {
1.115 eric 1332: if (PROT_TRACE)HTTrace("POST Anchor. Target WOULD BLOCK\n");
1.111 frystyk 1333: return HT_WOULD_BLOCK;
1334: } else if (status == HT_PAUSE) {
1.115 eric 1335: if (PROT_TRACE) HTTrace("POST Anchor. Target PAUSED\n");
1.111 frystyk 1336: return HT_PAUSE;
1337: } else if (status > 0) { /* Stream specific return code */
1338: if (PROT_TRACE)
1.115 eric 1339: HTTrace("POST Anchor. Target returns %d\n", status);
1.111 frystyk 1340: return status;
1.120 eric 1341: } else { /* we have a real error */
1.115 eric 1342: if (PROT_TRACE) HTTrace("POST Anchor. Target ERROR\n");
1.111 frystyk 1343: return status;
1344: }
1.70 frystyk 1345: }
1.123 frystyk 1346: }
1347:
1348: /* ------------------------------------------------------------------------- */
1349: /* HEAD METHOD */
1350: /* ------------------------------------------------------------------------- */
1351:
1352: /* Request metainformation about a document from absolute name
1353: ** -----------------------------------------------------------
1354: ** Request a document referencd by an absolute URL.
1355: ** Returns YES if request accepted, else NO
1356: */
1357: PUBLIC BOOL HTHeadAbsolute (const char * url, HTRequest * request)
1358: {
1359: if (url && request) {
1360: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1361: return HTHeadAnchor(anchor, request);
1.123 frystyk 1362: }
1363: return NO;
1364: }
1365:
1366: /* Request metainformation about a document from relative name
1367: ** -----------------------------------------------------------
1368: ** Request a document referenced by a relative URL. The relative URL is
1369: ** made absolute by resolving it relative to the address of the 'base'
1370: ** anchor.
1371: ** Returns YES if request accepted, else NO
1372: */
1373: PUBLIC BOOL HTHeadRelative (const char * relative,
1374: HTParentAnchor * base,
1375: HTRequest * request)
1376: {
1377: BOOL status = NO;
1378: if (relative && base && request) {
1379: char * rel = NULL;
1380: char * full_url = NULL;
1381: char * base_url = HTAnchor_address((HTAnchor *) base);
1382: StrAllocCopy(rel, relative);
1383: full_url = HTParse(HTStrip(rel), base_url,
1384: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1385: status = HTHeadAbsolute(full_url, request);
1.123 frystyk 1386: HT_FREE(rel);
1387: HT_FREE(full_url);
1388: HT_FREE(base_url);
1389: }
1390: return status;
1391: }
1392:
1393: /* Request metainformation about an anchor
1394: ** --------------------------------------
1395: ** Request the document referenced by the anchor
1396: ** Returns YES if request accepted, else NO
1397: */
1398: PUBLIC BOOL HTHeadAnchor (HTAnchor * anchor, HTRequest * request)
1399: {
1400: if (anchor && request) {
1401: HTRequest_setAnchor(request, anchor);
1.134 frystyk 1402: HTRequest_setOutputFormat(request, WWW_MIME);
1.123 frystyk 1403: HTRequest_setMethod(request, METHOD_HEAD);
1.124 frystyk 1404: return launch_request(request, NO);
1.123 frystyk 1405: }
1406: return NO;
1407: }
1408:
1409: /* ------------------------------------------------------------------------- */
1410: /* DELETE METHOD */
1411: /* ------------------------------------------------------------------------- */
1412:
1413: /* Delete a document on a remote server
1414: ** ------------------------------------
1415: ** Request a document referencd by an absolute URL.
1416: ** Returns YES if request accepted, else NO
1417: */
1418: PUBLIC BOOL HTDeleteAbsolute (const char * url, HTRequest * request)
1419: {
1420: if (url && request) {
1421: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1422: return HTDeleteAnchor(anchor, request);
1.123 frystyk 1423: }
1424: return NO;
1425: }
1426:
1427: /* Request metainformation about a document from relative name
1428: ** -----------------------------------------------------------
1429: ** Request a document referenced by a relative URL. The relative URL is
1430: ** made absolute by resolving it relative to the address of the 'base'
1431: ** anchor.
1432: ** Returns YES if request accepted, else NO
1433: */
1434: PUBLIC BOOL HTDeleteRelative (const char * relative,
1435: HTParentAnchor * base,
1436: HTRequest * request)
1437: {
1438: BOOL status = NO;
1439: if (relative && base && request) {
1440: char * rel = NULL;
1441: char * full_url = NULL;
1442: char * base_url = HTAnchor_address((HTAnchor *) base);
1443: StrAllocCopy(rel, relative);
1444: full_url = HTParse(HTStrip(rel), base_url,
1445: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1446: status = HTDeleteAbsolute(full_url, request);
1.123 frystyk 1447: HT_FREE(rel);
1448: HT_FREE(full_url);
1449: HT_FREE(base_url);
1450: }
1451: return status;
1452: }
1453:
1454: /* Request metainformation about an anchor
1455: ** --------------------------------------
1456: ** Request the document referenced by the anchor
1457: ** Returns YES if request accepted, else NO
1458: */
1459: PUBLIC BOOL HTDeleteAnchor (HTAnchor * anchor, HTRequest * request)
1460: {
1461: if (anchor && request) {
1462: HTRequest_setAnchor(request, anchor);
1463: HTRequest_setMethod(request, METHOD_DELETE);
1.124 frystyk 1464: return launch_request(request, NO);
1465: }
1466: return NO;
1467: }
1468:
1469: /* ------------------------------------------------------------------------- */
1470: /* OPTIONS METHOD */
1471: /* ------------------------------------------------------------------------- */
1472:
1473: /* Options availeble for document from absolute name
1474: ** -------------------------------------------------
1475: ** Request a document referencd by an absolute URL.
1476: ** Returns YES if request accepted, else NO
1477: */
1478: PUBLIC BOOL HTOptionsAbsolute (const char * url, HTRequest * request)
1479: {
1480: if (url && request) {
1481: HTAnchor * anchor = HTAnchor_findAddress(url);
1482: return HTOptionsAnchor(anchor, request);
1483: }
1484: return NO;
1485: }
1486:
1487: /* Options available for document from relative name
1488: ** -------------------------------------------------
1489: ** Request a document referenced by a relative URL. The relative URL is
1490: ** made absolute by resolving it relative to the address of the 'base'
1491: ** anchor.
1492: ** Returns YES if request accepted, else NO
1493: */
1494: PUBLIC BOOL HTOptionsRelative (const char * relative,
1495: HTParentAnchor * base,
1496: HTRequest * request)
1497: {
1498: BOOL status = NO;
1499: if (relative && base && request) {
1500: char * rel = NULL;
1501: char * full_url = NULL;
1502: char * base_url = HTAnchor_address((HTAnchor *) base);
1503: StrAllocCopy(rel, relative);
1504: full_url = HTParse(HTStrip(rel), base_url,
1505: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1506: status = HTOptionsAbsolute(full_url, request);
1507: HT_FREE(rel);
1508: HT_FREE(full_url);
1509: HT_FREE(base_url);
1510: }
1511: return status;
1512: }
1513:
1514: /* Options available for document using Anchor
1515: ** -------------------------------------------
1516: ** Request the document referenced by the anchor
1517: ** Returns YES if request accepted, else NO
1518: */
1519: PUBLIC BOOL HTOptionsAnchor (HTAnchor * anchor, HTRequest * request)
1520: {
1521: if (anchor && request) {
1522: HTRequest_setAnchor(request, anchor);
1523: HTRequest_setMethod(request, METHOD_OPTIONS);
1524: return launch_request(request, NO);
1.123 frystyk 1525: }
1526: return NO;
1.1 timbl 1527: }
1.127 frystyk 1528:
1529: /* ------------------------------------------------------------------------- */
1530: /* TRACE METHOD */
1531: /* ------------------------------------------------------------------------- */
1532:
1533: /* Traces available for document from absolute name
1534: ** ------------------------------------------------
1535: ** Request a document referencd by an absolute URL.
1536: ** Returns YES if request accepted, else NO
1537: */
1538: PUBLIC BOOL HTTraceAbsolute (const char * url, HTRequest * request)
1539: {
1540: if (url && request) {
1541: HTAnchor * anchor = HTAnchor_findAddress(url);
1542: return HTTraceAnchor(anchor, request);
1543: }
1544: return NO;
1545: }
1546:
1547: /* Traces available for document from relative name
1548: ** ------------------------------------------------
1549: ** Request a document referenced by a relative URL. The relative URL is
1550: ** made absolute by resolving it relative to the address of the 'base'
1551: ** anchor.
1552: ** Returns YES if request accepted, else NO
1553: */
1554: PUBLIC BOOL HTTraceRelative (const char * relative,
1555: HTParentAnchor * base,
1556: HTRequest * request)
1557: {
1558: BOOL status = NO;
1559: if (relative && base && request) {
1560: char * rel = NULL;
1561: char * full_url = NULL;
1562: char * base_url = HTAnchor_address((HTAnchor *) base);
1563: StrAllocCopy(rel, relative);
1564: full_url = HTParse(HTStrip(rel), base_url,
1565: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1566: status = HTTraceAbsolute(full_url, request);
1567: HT_FREE(rel);
1568: HT_FREE(full_url);
1569: HT_FREE(base_url);
1570: }
1571: return status;
1572: }
1573:
1574: /* Trace available for document using Anchor
1575: ** -------------------------------------------
1576: ** Request the document referenced by the anchor
1577: ** Returns YES if request accepted, else NO
1578: */
1579: PUBLIC BOOL HTTraceAnchor (HTAnchor * anchor, HTRequest * request)
1580: {
1581: if (anchor && request) {
1582: HTRequest_setAnchor(request, anchor);
1583: HTRequest_setMethod(request, METHOD_TRACE);
1584: return launch_request(request, NO);
1585: }
1586: return NO;
1587: }
1588:
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