Annotation of libwww/Library/src/HTAccess.c, revision 1.132
1.120 eric 1: /* htaccess.c
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.
1.132 ! frystyk 6: ** @(#) $Id: HTAccess.c,v 1.131 1996/08/20 04:53:28 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);
1.125 frystyk 557: if (status == HT_LOADED) {
558: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED\n");
559: (*target->isa->flush)(target);
560: return HT_LOADED;
561: }
1.123 frystyk 562: if (status == HT_WOULD_BLOCK) {
1.124 frystyk 563: if (PROT_TRACE)HTTrace("Posting Data Target WOULD BLOCK\n");
1.123 frystyk 564: return HT_WOULD_BLOCK;
565: } else if (status == HT_PAUSE) {
1.126 frystyk 566: if (PROT_TRACE) HTTrace("Posting Data Target PAUSED\n");
1.123 frystyk 567: return HT_PAUSE;
1.126 frystyk 568: } else if (chunking && status == HT_OK) {
569: if (PROT_TRACE) HTTrace("Posting Data Target is SAVED using chunked\n");
570: return (*target->isa->put_block)(target, "", 0);
571: } else if (status > 0) { /* Stream specific return code */
1.123 frystyk 572: if (PROT_TRACE)
1.124 frystyk 573: HTTrace("Posting Data. Target returns %d\n", status);
1.123 frystyk 574: return status;
575: } else { /* we have a real error */
1.129 frystyk 576: if (PROT_TRACE) HTTrace("Posting Data Target ERROR %d\n", status);
1.123 frystyk 577: return status;
578: }
579: }
580: }
581:
582: /* Send a Form request using POST from absolute name
583: ** -------------------------------------------------
584: ** Request a document referencd by an absolute URL appended with the
585: ** formdata given. The URL can NOT contain any fragment identifier!
586: ** The list of form data must be given as an association list where
587: ** the name is the field name and the value is the value of the field.
588: */
589: PUBLIC HTParentAnchor * HTPostFormAbsolute (HTAssocList * formdata,
590: const char * base,
591: HTRequest * request)
592: {
593: if (formdata && base && request) {
594: HTAnchor * anchor = HTAnchor_findAddress(base);
595: return HTPostFormAnchor(formdata, anchor, request);
596: }
597: return NULL;
598: }
599:
600: /* Send a Form request using POST from relative name
601: ** -------------------------------------------------
602: ** Request a document referencd by a relative URL appended with the
603: ** formdata given. The URL can NOT contain any fragment identifier!
604: ** The list of form data must be given as an association list where
605: ** the name is the field name and the value is the value of the field.
606: */
607: PUBLIC HTParentAnchor * HTPostFormRelative (HTAssocList * formdata,
608: const char * relative,
609: HTParentAnchor * base,
610: HTRequest * request)
1.90 frystyk 611: {
1.123 frystyk 612: HTParentAnchor * postanchor = NULL;
613: if (formdata && relative && base && request) {
614: char * full_url = NULL;
615: char * base_url = HTAnchor_address((HTAnchor *) base);
616: full_url=HTParse(relative, base_url,
617: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
618: postanchor = HTPostFormAbsolute(formdata, full_url, request);
619: HT_FREE(full_url);
620: HT_FREE(base_url);
621: }
622: return postanchor;
623: }
624:
625: /* Send a Form request using POST from an anchor
626: ** ---------------------------------------------
627: ** Request a document referencd by an anchor object appended with the
628: ** formdata given. The URL can NOT contain any fragment identifier!
629: ** The list of form data must be given as an association list where
630: ** the name is the field name and the value is the value of the field.
631: */
632: PUBLIC HTParentAnchor * HTPostFormAnchor (HTAssocList * formdata,
633: HTAnchor * anchor,
634: HTRequest * request)
635: {
636: HTParentAnchor * postanchor = NULL;
637: if (formdata && anchor && request) {
638: HTUserProfile * up = HTRequest_userProfile(request);
639: char * tmpfile = HTGetTmpFileName(HTUserProfile_tmp(up));
640: char * tmpurl = HTParse(tmpfile, "file:", PARSE_ALL);
641: char * form_encoded = form_url_encode(NULL, formdata);
642: if (form_encoded) {
643:
644: /*
645: ** Now create a new anchor for the post data and set up
646: ** the rest of the metainformation we know about this anchor. The
647: ** tmp anchor may actually already exist from previous postings.
648: */
649: postanchor = (HTParentAnchor *) HTAnchor_findAddress(tmpurl);
650: HTAnchor_clearHeader(postanchor);
651: HTAnchor_setDocument(postanchor, form_encoded);
652: HTAnchor_setLength(postanchor, strlen(form_encoded));
653: HTAnchor_setFormat(postanchor, WWW_FORM);
654:
655: /*
656: ** Bind the temporary anchor to the anchor that will contain the
657: ** response
658: */
659: HTLink_removeAll((HTAnchor *) postanchor);
660: HTLink_add((HTAnchor *) postanchor, (HTAnchor *) anchor,
661: NULL, METHOD_POST);
662:
663: /* Set up the request object */
664: HTRequest_addGnHd(request, HT_G_DATE); /* Send date header */
665: HTRequest_setAnchor(request, anchor);
666: HTRequest_setEntityAnchor(request, postanchor);
667: HTRequest_setMethod(request, METHOD_POST);
668:
669: /* Add the post form callback function to provide the form data */
670: HTRequest_setPostCallback(request, HTEntity_callback);
671:
672: /* Now start the load normally */
1.124 frystyk 673: launch_request(request, NO);
1.123 frystyk 674: }
675: HT_FREE(tmpfile);
676: HT_FREE(tmpurl);
1.90 frystyk 677: }
1.123 frystyk 678: return postanchor;
1.57 howcome 679: }
680:
1.70 frystyk 681: /* --------------------------------------------------------------------------*/
1.124 frystyk 682: /* PUT A DOCUMENT */
683: /* --------------------------------------------------------------------------*/
1.125 frystyk 684: PRIVATE BOOL setup_anchors (HTRequest * request,
1.131 frystyk 685: HTParentAnchor * source, HTParentAnchor * dest,
686: HTMethod method)
1.124 frystyk 687: {
1.131 frystyk 688: if (!(method & (METHOD_PUT | METHOD_POST))) {
689: if (APP_TRACE) HTTrace("Posting..... Bad method\n");
690: return NO;
691: }
692:
1.124 frystyk 693: /*
1.127 frystyk 694: ** Check whether we know if it is possible to PUT to this destination.
695: ** We both check the local set of allowed methods in the anchor and any
696: ** site information that we may have about the location of the origin
697: ** server.
1.124 frystyk 698: */
699: {
1.131 frystyk 700: char * addr = HTAnchor_address((HTAnchor *) source);
701: char * hostname = HTParse(addr, "", PARSE_HOST);
702: HTHost * host = HTHost_find(hostname);
703: HTMethod public_methods = HTHost_publicMethods(host);
704: HTMethod private_methods = HTAnchor_methods(dest);
705: HT_FREE(hostname);
706: HT_FREE(addr);
707: if (!(method & (private_methods | public_methods))) {
1.124 frystyk 708: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
709: if (prompt) {
710: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_METHOD,
711: NULL, NULL, NULL) != YES)
712: return NO;
713: }
714: }
715: }
716:
717: /*
718: ** Bind the source anchor to the dest anchor that will contain the
719: ** response. If link already exists then ask is we should do it again.
720: ** If so then remove the old link and replace it with a new one.
721: */
722: {
723: HTLink *link = HTLink_find((HTAnchor *) source, (HTAnchor *) dest);
724: if (link && HTLink_method(link) == METHOD_PUT) {
725: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
726: if (prompt) {
727: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_REDO,
728: NULL, NULL, NULL) != YES)
729: return NO;
730: }
731: HTLink_remove((HTAnchor *) source, (HTAnchor *) dest);
732: }
733: HTLink_add((HTAnchor*) source, (HTAnchor*) dest, NULL, METHOD_PUT);
734: }
735: return YES;
736: }
737:
738: /* Send an Anchor using PUT from absolute name
739: ** -------------------------------------------
740: ** Upload a document referenced by an absolute URL appended.
741: ** The URL can NOT contain any fragment identifier!
742: ** The list of form data must be given as an association list where
743: ** the name is the field name and the value is the value of the field.
744: */
745: PUBLIC BOOL HTPutAbsolute (HTParentAnchor * source,
746: const char * destination,
747: HTRequest * request)
748: {
749: if (source && destination && request) {
750: HTAnchor * dest = HTAnchor_findAddress(destination);
751: return HTPutAnchor(source, dest, request);
752: }
753: return NO;
754: }
755:
756: /* Send an Anchor using PUT from relative name
757: ** -------------------------------------------
758: ** Upload a document referenced by a relative URL appended.
759: ** The URL can NOT contain any fragment identifier!
760: ** The list of form data must be given as an association list where
761: ** the name is the field name and the value is the value of the field.
762: */
763: PUBLIC BOOL HTPutRelative (HTParentAnchor * source,
764: const char * relative,
765: HTParentAnchor * destination_base,
766: HTRequest * request)
767: {
768: if (source && relative && destination_base && request) {
769: BOOL status;
770: char * full_url = NULL;
771: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
772: full_url=HTParse(relative, base_url,
773: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
774: status = HTPutAbsolute(source, full_url, request);
775: HT_FREE(full_url);
776: HT_FREE(base_url);
777: return status;
778: }
779: return NO;
780: }
781:
782: /* Send an Anchor using PUT from an anchor
783: ** ---------------------------------------
784: ** Upload a document referenced by an anchor object appended
785: ** The URL can NOT contain any fragment identifier!
786: ** The list of form data must be given as an association list where
787: ** the name is the field name and the value is the value of the field.
788: */
789: PUBLIC BOOL HTPutAnchor (HTParentAnchor * source,
790: HTAnchor * destination,
791: HTRequest * request)
792: {
793: HTParentAnchor * dest = HTAnchor_parent(destination);
794: if (source && dest && request) {
1.131 frystyk 795: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 796:
797: /* Set up the request object */
798: HTRequest_addGnHd(request, HT_G_DATE);
799: HTRequest_setEntityAnchor(request, source);
800: HTRequest_setMethod(request, METHOD_PUT);
801: HTRequest_setAnchor(request, destination);
802:
803: /* Add the entity callback function to provide the form data */
804: HTRequest_setPostCallback(request, HTEntity_callback);
805:
806: /* Now start the load normally */
807: return launch_request(request, NO);
808: }
809: }
810: return NO;
811: }
812:
1.125 frystyk 813: /* Send an Anchor using POST from absolute name
814: ** -------------------------------------------
815: ** Upload a document referenced by an absolute URL appended.
816: ** The URL can NOT contain any fragment identifier!
817: ** The list of form data must be given as an association list where
818: ** the name is the field name and the value is the value of the field.
819: */
820: PUBLIC BOOL HTPostAbsolute (HTParentAnchor * source,
821: const char * destination,
822: HTRequest * request)
823: {
824: if (source && destination && request) {
825: HTAnchor * dest = HTAnchor_findAddress(destination);
826: return HTPostAnchor(source, dest, request);
827: }
828: return NO;
829: }
830:
831: /* Send an Anchor using POST from relative name
832: ** -------------------------------------------
833: ** Upload a document referenced by a relative URL appended.
834: ** The URL can NOT contain any fragment identifier!
835: ** The list of form data must be given as an association list where
836: ** the name is the field name and the value is the value of the field.
837: */
838: PUBLIC BOOL HTPostRelative (HTParentAnchor * source,
839: const char * relative,
840: HTParentAnchor * destination_base,
841: HTRequest * request)
842: {
843: if (source && relative && destination_base && request) {
844: BOOL status;
845: char * full_url = NULL;
846: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
847: full_url=HTParse(relative, base_url,
848: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
849: status = HTPostAbsolute(source, full_url, request);
850: HT_FREE(full_url);
851: HT_FREE(base_url);
852: return status;
853: }
854: return NO;
855: }
856:
857: /* Send an Anchor using POST from an anchor
858: ** ---------------------------------------
859: ** Upload a document referenced by an anchor object appended
860: ** The URL can NOT contain any fragment identifier!
861: ** The list of form data must be given as an association list where
862: ** the name is the field name and the value is the value of the field.
863: */
864: PUBLIC BOOL HTPostAnchor (HTParentAnchor * source,
865: HTAnchor * destination,
866: HTRequest * request)
867: {
868: HTParentAnchor * dest = HTAnchor_parent(destination);
869: if (source && dest && request) {
1.131 frystyk 870: if (setup_anchors(request, source, dest, METHOD_POST) == YES) {
1.125 frystyk 871:
872: /* Set up the request object */
873: HTRequest_addGnHd(request, HT_G_DATE);
874: HTRequest_setEntityAnchor(request, source);
875: HTRequest_setMethod(request, METHOD_POST);
876: HTRequest_setAnchor(request, destination);
877:
878: /* Add the entity callback function to provide the form data */
879: HTRequest_setPostCallback(request, HTEntity_callback);
880:
881: /* Now start the load normally */
882: return launch_request(request, NO);
883: }
884: }
885: return NO;
886: }
887:
1.124 frystyk 888: /* Send an Anchor using PUT from absolute name
889: ** -------------------------------------------
890: ** Upload a document referenced by an absolute URL appended.
891: ** The URL can NOT contain any fragment identifier!
892: ** The list of form data must be given as an association list where
893: ** the name is the field name and the value is the value of the field.
894: */
895: PUBLIC BOOL HTPutStructuredAbsolute (HTParentAnchor * source,
896: const char * destination,
897: HTRequest * request,
898: HTPostCallback * input)
899: {
900: if (source && destination && request && input) {
901: HTAnchor * dest = HTAnchor_findAddress(destination);
902: return HTPutStructuredAnchor(source, dest, request, input);
903: }
904: return NO;
905: }
906:
907: /* Send an Anchor using PUT from relative name
908: ** -------------------------------------------
909: ** Upload a document referenced by a relative URL appended.
910: ** The URL can NOT contain any fragment identifier!
911: ** The list of form data must be given as an association list where
912: ** the name is the field name and the value is the value of the field.
913: */
914: PUBLIC BOOL HTPutStructuredRelative (HTParentAnchor * source,
915: const char * relative,
916: HTParentAnchor * destination_base,
917: HTRequest * request,
918: HTPostCallback * input)
919: {
920: if (source && relative && destination_base && request && input) {
921: BOOL status;
922: char * full_url = NULL;
923: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
924: full_url=HTParse(relative, base_url,
925: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
926: status = HTPutStructuredAbsolute(source, full_url, request, input);
927: HT_FREE(full_url);
928: HT_FREE(base_url);
929: return status;
930: }
931: return NO;
932: }
933:
934: /* Send an Anchor using PUT from an anchor
935: ** ---------------------------------------
936: ** Upload a document referenced by an anchor object appended
937: ** The URL can NOT contain any fragment identifier!
938: ** The list of form data must be given as an association list where
939: ** the name is the field name and the value is the value of the field.
940: */
941: PUBLIC BOOL HTPutStructuredAnchor (HTParentAnchor * source,
942: HTAnchor * destination,
943: HTRequest * request,
944: HTPostCallback * input)
945: {
946: HTParentAnchor * dest = HTAnchor_parent(destination);
947: if (source && dest && request) {
1.131 frystyk 948: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 949:
950: /* Set up the request object */
951: HTRequest_addGnHd(request, HT_G_DATE);
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: */
969: PRIVATE int HTSaveFilter (HTRequest * request, void * param, int status)
970: {
971: HTPutContext * me = (HTPutContext *) param;
972: if (APP_TRACE)
973: HTTrace("Save Filter. Using context %p with state %c\n",
974: me, me->state+0x30);
975:
976: /*
1.125 frystyk 977: ** Just ignore authentication in the hope that some other filter will
978: ** handle this.
979: */
980: if (status == HT_NO_ACCESS || status == HT_NO_PROXY_ACCESS) {
981: if (APP_TRACE) HTTrace("Save Filter. Waiting for authentication\n");
982: return HT_OK;
983: }
984:
985: /*
1.124 frystyk 986: ** If either the source or the destination has moved then ask the user
987: ** what to do. If there is no user then stop
988: */
989: if (status == HT_TEMP_REDIRECT || status == HT_PERM_REDIRECT) {
990: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
991: HTAnchor * redirection = HTRequest_redirection(request);
992: if (prompt && redirection) {
1.125 frystyk 993: if (me->state == HT_LOAD_SOURCE) {
1.124 frystyk 994: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_SOURCE_MOVED,
995: NULL, NULL, NULL) == YES) {
996: me->source = HTAnchor_parent(redirection);
1.128 frystyk 997: } else {
998: /*
999: ** Make sure that the operation stops
1000: */
1001: me->state = HT_ABORT_SAVE;
1.124 frystyk 1002: }
1003: } else {
1004: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_DESTINATION_MOVED,
1005: NULL, NULL, NULL) == YES) {
1006: me->destination = redirection;
1.128 frystyk 1007: } else {
1008: /*
1009: ** Make sure that the operation stops
1010: */
1011: me->state = HT_ABORT_SAVE;
1.124 frystyk 1012: }
1013: }
1014: }
1.128 frystyk 1015: return HT_OK;
1.124 frystyk 1016: }
1017:
1018: /*
1.125 frystyk 1019: ** If we succeeded getting the source then start the PUT itself. Otherwise
1020: ** cleanup the mess
1.124 frystyk 1021: */
1.125 frystyk 1022: if (me->state == HT_LOAD_SOURCE && status == HT_LOADED &&
1023: !HTError_hasSeverity(HTRequest_error(request), ERR_INFO)) {
1.124 frystyk 1024:
1025: /* Swap the document in the anchor with the new one */
1026: me->placeholder = HTAnchor_document(me->source);
1027: HTAnchor_setDocument(me->source, HTChunk_data(me->document));
1028:
1029: /* Set up the request object */
1030: HTRequest_addGnHd(request, HT_G_DATE);
1031: HTRequest_setEntityAnchor(request, me->source);
1032: HTRequest_setMethod(request, METHOD_PUT);
1033: HTRequest_setAnchor(request, me->destination);
1034: HTRequest_setOutputFormat(request, me->format);
1035: HTRequest_setOutputStream(request, me->target);
1036:
1.125 frystyk 1037: /* Turn progress notifications back on */
1038: HTRequest_setInternal(request, NO);
1039:
1.124 frystyk 1040: /* Add the entity callback function to provide the form data */
1041: HTRequest_setPostCallback(request, HTEntity_callback);
1042:
1043: /* Now start the load normally */
1044: me->state = launch_request(request, NO) ?
1.125 frystyk 1045: HT_SAVE_DEST : HT_LOAD_SOURCE;
1.124 frystyk 1046:
1047: /*
1048: ** By returning HT_ERROR we make sure that this is the last handler to
1049: ** be called. We do this as we don't want any other filter to delete
1050: ** the request object now when we have just started a new one
1051: ** ourselves
1052: */
1053: return HT_ERROR;
1054:
1055: } else {
1056: HTRequest_deleteAfter(request, HTSaveFilter);
1057: HTAnchor_setDocument(me->source, me->placeholder);
1058: HTChunk_delete(me->document);
1059: HT_FREE(me);
1060: }
1061: return HT_OK;
1062: }
1063:
1064: /* Send an Anchor using PUT from absolute name
1065: ** -------------------------------------------
1066: ** Upload a document referenced by an absolute URL appended.
1067: ** The URL can NOT contain any fragment identifier!
1068: ** The list of form data must be given as an association list where
1069: ** the name is the field name and the value is the value of the field.
1070: */
1071: PUBLIC BOOL HTPutDocumentAbsolute (HTParentAnchor * source,
1072: const char * destination,
1073: HTRequest * request)
1074: {
1075: if (source && destination && request) {
1076: HTAnchor * dest = HTAnchor_findAddress(destination);
1077: return HTPutDocumentAnchor(source, dest, request);
1078: }
1079: return NO;
1080: }
1081:
1082: /* Send an Anchor using PUT from relative name
1083: ** -------------------------------------------
1084: ** Upload a document referenced by a relative URL appended.
1085: ** The URL can NOT contain any fragment identifier!
1086: ** The list of form data must be given as an association list where
1087: ** the name is the field name and the value is the value of the field.
1088: */
1089: PUBLIC BOOL HTPutDocumentRelative (HTParentAnchor * source,
1090: const char * relative,
1091: HTParentAnchor * destination_base,
1092: HTRequest * request)
1093: {
1094: if (source && relative && destination_base && request) {
1095: BOOL status;
1096: char * full_url = NULL;
1097: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
1098: full_url=HTParse(relative, base_url,
1099: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1100: status = HTPutDocumentAbsolute(source, full_url, request);
1101: HT_FREE(full_url);
1102: HT_FREE(base_url);
1103: return status;
1104: }
1105: return NO;
1106: }
1107:
1108: /* Send an Anchor using PUT from an anchor
1109: ** ---------------------------------------
1110: ** Upload a document referenced by an anchor object appended
1111: ** The URL can NOT contain any fragment identifier!
1112: ** The source document is first loaded into memory and then the PUT
1113: ** to the remote server is done using the memory version
1114: */
1115: PUBLIC BOOL HTPutDocumentAnchor (HTParentAnchor * source,
1116: HTAnchor * destination,
1117: HTRequest * request)
1118: {
1119: HTParentAnchor * dest = HTAnchor_parent(destination);
1120: if (source && dest && request) {
1.131 frystyk 1121: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 1122: HTPutContext * context = NULL;
1123:
1124: /*
1125: ** First we register an AFTER filter that can check the result
1126: ** of the source load if success then it can start the PUT
1127: ** operation to the destination.
1128: */
1129: if (!(context=(HTPutContext *) HT_CALLOC(1, sizeof(HTPutContext))))
1130: HT_OUTOFMEM("HTPutDocumentAnchor");
1131: context->source = source;
1132: context->destination = destination;
1133: HTRequest_addAfter(request, HTSaveFilter, context, HT_ALL, NO);
1.125 frystyk 1134:
1135: /* Turn off progress notifications */
1136: HTRequest_setInternal(request, YES);
1.124 frystyk 1137:
1138: /*
1139: ** We make sure that we are not using a memory cached element.
1140: ** It's OK to use a file cached element!
1141: */
1142: HTRequest_setReloadMode(request, HT_MEM_REFRESH);
1143:
1144: /*
1145: ** Now we load the source document into a chunk. We specify that
1146: ** we want the document ASIS from the source location.
1147: */
1148: context->format = HTRequest_outputFormat(request);
1149: context->target = HTRequest_outputStream(request);
1150: HTRequest_setOutputFormat(request, WWW_SOURCE);
1151: context->document = HTLoadAnchorToChunk((HTAnchor*)source,request);
1152: if (context->document == NULL) {
1153: if (APP_TRACE) HTTrace("Put Document No source\n");
1154: HT_FREE(context);
1155: return NO;
1156: }
1157: return YES;
1158: }
1159: }
1160: return NO;
1161: }
1162:
1163: /* ------------------------------------------------------------------------- */
1.70 frystyk 1164:
1.90 frystyk 1165: /* Copy an anchor
1.70 frystyk 1166: ** --------------
1.90 frystyk 1167: ** Fetch the URL (possibly local file URL) and send it using either PUT
1168: ** or POST to the remote destination using HTTP. The caller can decide the
1169: ** exact method used and which HTTP header fields to transmit by setting
1170: ** the user fields in the request structure.
1.92 frystyk 1171: ** If posting to NNTP then we can't dispatch at this level but must pass
1172: ** the source anchor to the news module that then takes all the refs
1173: ** to NNTP and puts into the "newsgroups" header
1.70 frystyk 1174: */
1.109 frystyk 1175: PUBLIC BOOL HTCopyAnchor (HTAnchor * src_anchor, HTRequest * main_dest)
1.80 frystyk 1176: {
1.106 frystyk 1177: HTRequest * src_req;
1178: HTList * cur;
1.109 frystyk 1179: if (!src_anchor || !main_dest) {
1.115 eric 1180: if (WWWTRACE) HTTrace("Copy........ BAD ARGUMENT\n");
1.90 frystyk 1181: return NO;
1.109 frystyk 1182: }
1.70 frystyk 1183:
1.112 frystyk 1184: /* Set the source anchor */
1185: main_dest->source_anchor = HTAnchor_parent(src_anchor);
1186:
1.80 frystyk 1187: /* Build the POST web if not already there */
1.109 frystyk 1188: if (!main_dest->source) {
1189: src_req = HTRequest_dupInternal(main_dest); /* Get a duplicate */
1.80 frystyk 1190: HTAnchor_clearHeader((HTParentAnchor *) src_anchor);
1.109 frystyk 1191: src_req->method = METHOD_GET;
1.85 frystyk 1192: src_req->reload = HT_MEM_REFRESH;
1.104 frystyk 1193: src_req->output_stream = NULL;
1.80 frystyk 1194: src_req->output_format = WWW_SOURCE; /* We want source (for now) */
1195:
1196: /* Set up the main link in the source anchor */
1197: {
1.106 frystyk 1198: HTLink * main_link = HTAnchor_mainLink((HTAnchor *) src_anchor);
1199: HTAnchor *main_anchor = HTLink_destination(main_link);
1200: HTMethod method = HTLink_method(main_link);
1.85 frystyk 1201: if (!main_link || method==METHOD_INVALID) {
1.91 frystyk 1202: if (WWWTRACE)
1.115 eric 1203: HTTrace("Copy Anchor. No destination found or unspecified method\n");
1.80 frystyk 1204: HTRequest_delete(src_req);
1.90 frystyk 1205: return NO;
1.80 frystyk 1206: }
1.109 frystyk 1207: main_dest->GenMask |= HT_G_DATE; /* Send date header */
1208: main_dest->reload = HT_CACHE_REFRESH;
1209: main_dest->method = method;
1210: main_dest->input_format = WWW_SOURCE;
1211: HTRequest_addDestination(src_req, main_dest);
1212: if (HTLoadAnchor(main_anchor, main_dest) == NO)
1213: return NO;
1.80 frystyk 1214: }
1.78 frystyk 1215:
1.80 frystyk 1216: /* For all other links in the source anchor */
1.106 frystyk 1217: if ((cur = HTAnchor_subLinks(src_anchor))) {
1218: HTLink * pres;
1.109 frystyk 1219: while ((pres = (HTLink *) HTList_nextObject(cur))) {
1.106 frystyk 1220: HTAnchor *dest = HTLink_destination(pres);
1221: HTMethod method = HTLink_method(pres);
1.80 frystyk 1222: HTRequest *dest_req;
1223: if (!dest || method==METHOD_INVALID) {
1.91 frystyk 1224: if (WWWTRACE)
1.115 eric 1225: HTTrace("Copy Anchor. Bad anchor setup %p\n",
1.80 frystyk 1226: dest);
1.90 frystyk 1227: return NO;
1.80 frystyk 1228: }
1.109 frystyk 1229: dest_req = HTRequest_dupInternal(main_dest);
1.107 frystyk 1230: dest_req->GenMask |= HT_G_DATE; /* Send date header */
1.85 frystyk 1231: dest_req->reload = HT_CACHE_REFRESH;
1.80 frystyk 1232: dest_req->method = method;
1.104 frystyk 1233: dest_req->output_stream = NULL;
1234: dest_req->output_format = WWW_SOURCE;
1.109 frystyk 1235: HTRequest_addDestination(src_req, dest_req);
1.104 frystyk 1236:
1.90 frystyk 1237: if (HTLoadAnchor(dest, dest_req) == NO)
1238: return NO;
1.80 frystyk 1239: }
1240: }
1241: } else { /* Use the existing Post Web and restart it */
1.109 frystyk 1242: src_req = main_dest->source;
1.80 frystyk 1243: if (src_req->mainDestination)
1.124 frystyk 1244: if (launch_request(main_dest, NO) == NO)
1.90 frystyk 1245: return NO;
1.80 frystyk 1246: if (src_req->destinations) {
1.106 frystyk 1247: HTRequest * pres;
1248: cur = HTAnchor_subLinks(src_anchor);
1.80 frystyk 1249: while ((pres = (HTRequest *) HTList_nextObject(cur)) != NULL) {
1.124 frystyk 1250: if (launch_request(pres, NO) == NO)
1.90 frystyk 1251: return NO;
1.80 frystyk 1252: }
1253: }
1.78 frystyk 1254: }
1255:
1.80 frystyk 1256: /* Now open the source */
1257: return HTLoadAnchor(src_anchor, src_req);
1.70 frystyk 1258: }
1259:
1.90 frystyk 1260: /* Upload an Anchor
1.70 frystyk 1261: ** ----------------
1.111 frystyk 1262: ** This function can be used to send data along with a request to a remote
1263: ** server. It can for example be used to POST form data to a remote HTTP
1264: ** server - or it can be used to post a newsletter to a NNTP server. In
1265: ** either case, you pass a callback function which the request calls when
1266: ** the remote destination is ready to accept data. In this callback
1267: ** you get the current request object and a stream into where you can
1268: ** write data. It is very important that you return the value returned
1269: ** by this stream to the Library so that it knows what to do next. The
1270: ** reason is that the outgoing stream might block or an error may
1271: ** occur and in that case the Library must know about it. The source
1272: ** anchor represents the data object in memory and it points to
1273: ** the destination anchor by using the POSTWeb method. The source anchor
1274: ** contains metainformation about the data object in memory and the
1275: ** destination anchor represents the reponse from the remote server.
1.90 frystyk 1276: ** Returns YES if request accepted, else NO
1277: */
1.111 frystyk 1278: PUBLIC BOOL HTUploadAnchor (HTAnchor * source_anchor,
1279: HTRequest * request,
1280: HTPostCallback * callback)
1281: {
1282: HTLink * link = HTAnchor_mainLink((HTAnchor *) source_anchor);
1283: HTAnchor * dest_anchor = HTLink_destination(link);
1284: HTMethod method = HTLink_method(link);
1285: if (!link || method==METHOD_INVALID || !callback) {
1286: if (WWWTRACE)
1.115 eric 1287: HTTrace("Upload...... No destination found or unspecified method\n");
1.90 frystyk 1288: return NO;
1.109 frystyk 1289: }
1.111 frystyk 1290: request->GenMask |= HT_G_DATE; /* Send date header */
1291: request->reload = HT_CACHE_REFRESH;
1292: request->method = method;
1293: request->source_anchor = HTAnchor_parent(source_anchor);
1294: request->PostCallback = callback;
1295: return HTLoadAnchor(dest_anchor, request);
1296: }
1297:
1298: /* POST Callback Handler
1299: ** ---------------------
1300: ** If you do not want to handle the stream interface on your own, you
1301: ** can use this function which writes the source anchor hyperdoc to the
1302: ** target stream for the anchor upload and also handles the return value
1303: ** from the stream. If you don't want to write the source anchor hyperdoc
1304: ** then you can register your own callback function that can get the data
1305: ** you want.
1306: */
1307: PUBLIC int HTUpload_callback (HTRequest * request, HTStream * target)
1308: {
1.115 eric 1309: if (WWWTRACE) HTTrace("Uploading... from callback function\n");
1.111 frystyk 1310: if (!request || !request->source_anchor || !target) return HT_ERROR;
1311: {
1312: int status;
1313: HTParentAnchor * source = request->source_anchor;
1314: char * document = (char *) HTAnchor_document(request->source_anchor);
1315: int len = HTAnchor_length(source);
1316: if (len < 0) {
1317: len = strlen(document);
1318: HTAnchor_setLength(source, len);
1319: }
1320: status = (*target->isa->put_block)(target, document, len);
1321: if (status == HT_OK)
1322: return (*target->isa->flush)(target);
1323: if (status == HT_WOULD_BLOCK) {
1.115 eric 1324: if (PROT_TRACE)HTTrace("POST Anchor. Target WOULD BLOCK\n");
1.111 frystyk 1325: return HT_WOULD_BLOCK;
1326: } else if (status == HT_PAUSE) {
1.115 eric 1327: if (PROT_TRACE) HTTrace("POST Anchor. Target PAUSED\n");
1.111 frystyk 1328: return HT_PAUSE;
1329: } else if (status > 0) { /* Stream specific return code */
1330: if (PROT_TRACE)
1.115 eric 1331: HTTrace("POST Anchor. Target returns %d\n", status);
1.111 frystyk 1332: return status;
1.120 eric 1333: } else { /* we have a real error */
1.115 eric 1334: if (PROT_TRACE) HTTrace("POST Anchor. Target ERROR\n");
1.111 frystyk 1335: return status;
1336: }
1.70 frystyk 1337: }
1.123 frystyk 1338: }
1339:
1340: /* ------------------------------------------------------------------------- */
1341: /* HEAD METHOD */
1342: /* ------------------------------------------------------------------------- */
1343:
1344: /* Request metainformation about a document from absolute name
1345: ** -----------------------------------------------------------
1346: ** Request a document referencd by an absolute URL.
1347: ** Returns YES if request accepted, else NO
1348: */
1349: PUBLIC BOOL HTHeadAbsolute (const char * url, HTRequest * request)
1350: {
1351: if (url && request) {
1352: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1353: return HTHeadAnchor(anchor, request);
1.123 frystyk 1354: }
1355: return NO;
1356: }
1357:
1358: /* Request metainformation about a document from relative name
1359: ** -----------------------------------------------------------
1360: ** Request a document referenced by a relative URL. The relative URL is
1361: ** made absolute by resolving it relative to the address of the 'base'
1362: ** anchor.
1363: ** Returns YES if request accepted, else NO
1364: */
1365: PUBLIC BOOL HTHeadRelative (const char * relative,
1366: HTParentAnchor * base,
1367: HTRequest * request)
1368: {
1369: BOOL status = NO;
1370: if (relative && base && request) {
1371: char * rel = NULL;
1372: char * full_url = NULL;
1373: char * base_url = HTAnchor_address((HTAnchor *) base);
1374: StrAllocCopy(rel, relative);
1375: full_url = HTParse(HTStrip(rel), base_url,
1376: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1377: status = HTHeadAbsolute(full_url, request);
1.123 frystyk 1378: HT_FREE(rel);
1379: HT_FREE(full_url);
1380: HT_FREE(base_url);
1381: }
1382: return status;
1383: }
1384:
1385: /* Request metainformation about an anchor
1386: ** --------------------------------------
1387: ** Request the document referenced by the anchor
1388: ** Returns YES if request accepted, else NO
1389: */
1390: PUBLIC BOOL HTHeadAnchor (HTAnchor * anchor, HTRequest * request)
1391: {
1392: if (anchor && request) {
1393: HTRequest_setAnchor(request, anchor);
1.130 frystyk 1394: HTRequest_setOutputFormat(request, WWW_DEBUG);
1.123 frystyk 1395: HTRequest_setMethod(request, METHOD_HEAD);
1.124 frystyk 1396: return launch_request(request, NO);
1.123 frystyk 1397: }
1398: return NO;
1399: }
1400:
1401: /* ------------------------------------------------------------------------- */
1402: /* DELETE METHOD */
1403: /* ------------------------------------------------------------------------- */
1404:
1405: /* Delete a document on a remote server
1406: ** ------------------------------------
1407: ** Request a document referencd by an absolute URL.
1408: ** Returns YES if request accepted, else NO
1409: */
1410: PUBLIC BOOL HTDeleteAbsolute (const char * url, HTRequest * request)
1411: {
1412: if (url && request) {
1413: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1414: return HTDeleteAnchor(anchor, request);
1.123 frystyk 1415: }
1416: return NO;
1417: }
1418:
1419: /* Request metainformation about a document from relative name
1420: ** -----------------------------------------------------------
1421: ** Request a document referenced by a relative URL. The relative URL is
1422: ** made absolute by resolving it relative to the address of the 'base'
1423: ** anchor.
1424: ** Returns YES if request accepted, else NO
1425: */
1426: PUBLIC BOOL HTDeleteRelative (const char * relative,
1427: HTParentAnchor * base,
1428: HTRequest * request)
1429: {
1430: BOOL status = NO;
1431: if (relative && base && request) {
1432: char * rel = NULL;
1433: char * full_url = NULL;
1434: char * base_url = HTAnchor_address((HTAnchor *) base);
1435: StrAllocCopy(rel, relative);
1436: full_url = HTParse(HTStrip(rel), base_url,
1437: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1438: status = HTDeleteAbsolute(full_url, request);
1.123 frystyk 1439: HT_FREE(rel);
1440: HT_FREE(full_url);
1441: HT_FREE(base_url);
1442: }
1443: return status;
1444: }
1445:
1446: /* Request metainformation about an anchor
1447: ** --------------------------------------
1448: ** Request the document referenced by the anchor
1449: ** Returns YES if request accepted, else NO
1450: */
1451: PUBLIC BOOL HTDeleteAnchor (HTAnchor * anchor, HTRequest * request)
1452: {
1453: if (anchor && request) {
1454: HTRequest_setAnchor(request, anchor);
1455: HTRequest_setMethod(request, METHOD_DELETE);
1.124 frystyk 1456: return launch_request(request, NO);
1457: }
1458: return NO;
1459: }
1460:
1461: /* ------------------------------------------------------------------------- */
1462: /* OPTIONS METHOD */
1463: /* ------------------------------------------------------------------------- */
1464:
1465: /* Options availeble for document from absolute name
1466: ** -------------------------------------------------
1467: ** Request a document referencd by an absolute URL.
1468: ** Returns YES if request accepted, else NO
1469: */
1470: PUBLIC BOOL HTOptionsAbsolute (const char * url, HTRequest * request)
1471: {
1472: if (url && request) {
1473: HTAnchor * anchor = HTAnchor_findAddress(url);
1474: return HTOptionsAnchor(anchor, request);
1475: }
1476: return NO;
1477: }
1478:
1479: /* Options available for document from relative name
1480: ** -------------------------------------------------
1481: ** Request a document referenced by a relative URL. The relative URL is
1482: ** made absolute by resolving it relative to the address of the 'base'
1483: ** anchor.
1484: ** Returns YES if request accepted, else NO
1485: */
1486: PUBLIC BOOL HTOptionsRelative (const char * relative,
1487: HTParentAnchor * base,
1488: HTRequest * request)
1489: {
1490: BOOL status = NO;
1491: if (relative && base && request) {
1492: char * rel = NULL;
1493: char * full_url = NULL;
1494: char * base_url = HTAnchor_address((HTAnchor *) base);
1495: StrAllocCopy(rel, relative);
1496: full_url = HTParse(HTStrip(rel), base_url,
1497: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1498: status = HTOptionsAbsolute(full_url, request);
1499: HT_FREE(rel);
1500: HT_FREE(full_url);
1501: HT_FREE(base_url);
1502: }
1503: return status;
1504: }
1505:
1506: /* Options available for document using Anchor
1507: ** -------------------------------------------
1508: ** Request the document referenced by the anchor
1509: ** Returns YES if request accepted, else NO
1510: */
1511: PUBLIC BOOL HTOptionsAnchor (HTAnchor * anchor, HTRequest * request)
1512: {
1513: if (anchor && request) {
1514: HTRequest_setAnchor(request, anchor);
1515: HTRequest_setMethod(request, METHOD_OPTIONS);
1516: return launch_request(request, NO);
1.123 frystyk 1517: }
1518: return NO;
1.1 timbl 1519: }
1.127 frystyk 1520:
1521: /* ------------------------------------------------------------------------- */
1522: /* TRACE METHOD */
1523: /* ------------------------------------------------------------------------- */
1524:
1525: /* Traces available for document from absolute name
1526: ** ------------------------------------------------
1527: ** Request a document referencd by an absolute URL.
1528: ** Returns YES if request accepted, else NO
1529: */
1530: PUBLIC BOOL HTTraceAbsolute (const char * url, HTRequest * request)
1531: {
1532: if (url && request) {
1533: HTAnchor * anchor = HTAnchor_findAddress(url);
1534: return HTTraceAnchor(anchor, request);
1535: }
1536: return NO;
1537: }
1538:
1539: /* Traces available for document from relative name
1540: ** ------------------------------------------------
1541: ** Request a document referenced by a relative URL. The relative URL is
1542: ** made absolute by resolving it relative to the address of the 'base'
1543: ** anchor.
1544: ** Returns YES if request accepted, else NO
1545: */
1546: PUBLIC BOOL HTTraceRelative (const char * relative,
1547: HTParentAnchor * base,
1548: HTRequest * request)
1549: {
1550: BOOL status = NO;
1551: if (relative && base && request) {
1552: char * rel = NULL;
1553: char * full_url = NULL;
1554: char * base_url = HTAnchor_address((HTAnchor *) base);
1555: StrAllocCopy(rel, relative);
1556: full_url = HTParse(HTStrip(rel), base_url,
1557: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1558: status = HTTraceAbsolute(full_url, request);
1559: HT_FREE(rel);
1560: HT_FREE(full_url);
1561: HT_FREE(base_url);
1562: }
1563: return status;
1564: }
1565:
1566: /* Trace available for document using Anchor
1567: ** -------------------------------------------
1568: ** Request the document referenced by the anchor
1569: ** Returns YES if request accepted, else NO
1570: */
1571: PUBLIC BOOL HTTraceAnchor (HTAnchor * anchor, HTRequest * request)
1572: {
1573: if (anchor && request) {
1574: HTRequest_setAnchor(request, anchor);
1575: HTRequest_setMethod(request, METHOD_TRACE);
1576: return launch_request(request, NO);
1577: }
1578: return NO;
1579: }
1580:
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