Annotation of libwww/Library/src/HTAccess.c, revision 1.133
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.
1.133 ! frystyk 6: ** @(#) $Id: HTAccess.c,v 1.132 1996/08/21 00:07:08 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);
1.133 ! frystyk 799: HTRequest_addRqHd(request, HT_C_IF_MATCH);
1.124 frystyk 800: HTRequest_setEntityAnchor(request, source);
801: HTRequest_setMethod(request, METHOD_PUT);
802: HTRequest_setAnchor(request, destination);
803:
804: /* Add the entity callback function to provide the form data */
805: HTRequest_setPostCallback(request, HTEntity_callback);
806:
807: /* Now start the load normally */
808: return launch_request(request, NO);
809: }
810: }
811: return NO;
812: }
813:
1.125 frystyk 814: /* Send an Anchor using POST from absolute name
815: ** -------------------------------------------
816: ** Upload a document referenced by an absolute URL appended.
817: ** The URL can NOT contain any fragment identifier!
818: ** The list of form data must be given as an association list where
819: ** the name is the field name and the value is the value of the field.
820: */
821: PUBLIC BOOL HTPostAbsolute (HTParentAnchor * source,
822: const char * destination,
823: HTRequest * request)
824: {
825: if (source && destination && request) {
826: HTAnchor * dest = HTAnchor_findAddress(destination);
827: return HTPostAnchor(source, dest, request);
828: }
829: return NO;
830: }
831:
832: /* Send an Anchor using POST from relative name
833: ** -------------------------------------------
834: ** Upload a document referenced by a relative URL appended.
835: ** The URL can NOT contain any fragment identifier!
836: ** The list of form data must be given as an association list where
837: ** the name is the field name and the value is the value of the field.
838: */
839: PUBLIC BOOL HTPostRelative (HTParentAnchor * source,
840: const char * relative,
841: HTParentAnchor * destination_base,
842: HTRequest * request)
843: {
844: if (source && relative && destination_base && request) {
845: BOOL status;
846: char * full_url = NULL;
847: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
848: full_url=HTParse(relative, base_url,
849: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
850: status = HTPostAbsolute(source, full_url, request);
851: HT_FREE(full_url);
852: HT_FREE(base_url);
853: return status;
854: }
855: return NO;
856: }
857:
858: /* Send an Anchor using POST from an anchor
859: ** ---------------------------------------
860: ** Upload a document referenced by an anchor object appended
861: ** The URL can NOT contain any fragment identifier!
862: ** The list of form data must be given as an association list where
863: ** the name is the field name and the value is the value of the field.
864: */
865: PUBLIC BOOL HTPostAnchor (HTParentAnchor * source,
866: HTAnchor * destination,
867: HTRequest * request)
868: {
869: HTParentAnchor * dest = HTAnchor_parent(destination);
870: if (source && dest && request) {
1.131 frystyk 871: if (setup_anchors(request, source, dest, METHOD_POST) == YES) {
1.125 frystyk 872:
873: /* Set up the request object */
874: HTRequest_addGnHd(request, HT_G_DATE);
875: HTRequest_setEntityAnchor(request, source);
876: HTRequest_setMethod(request, METHOD_POST);
877: HTRequest_setAnchor(request, destination);
878:
879: /* Add the entity callback function to provide the form data */
880: HTRequest_setPostCallback(request, HTEntity_callback);
881:
882: /* Now start the load normally */
883: return launch_request(request, NO);
884: }
885: }
886: return NO;
887: }
888:
1.124 frystyk 889: /* Send an Anchor using PUT from absolute name
890: ** -------------------------------------------
891: ** Upload a document referenced by an absolute URL appended.
892: ** The URL can NOT contain any fragment identifier!
893: ** The list of form data must be given as an association list where
894: ** the name is the field name and the value is the value of the field.
895: */
896: PUBLIC BOOL HTPutStructuredAbsolute (HTParentAnchor * source,
897: const char * destination,
898: HTRequest * request,
899: HTPostCallback * input)
900: {
901: if (source && destination && request && input) {
902: HTAnchor * dest = HTAnchor_findAddress(destination);
903: return HTPutStructuredAnchor(source, dest, request, input);
904: }
905: return NO;
906: }
907:
908: /* Send an Anchor using PUT from relative name
909: ** -------------------------------------------
910: ** Upload a document referenced by a relative URL appended.
911: ** The URL can NOT contain any fragment identifier!
912: ** The list of form data must be given as an association list where
913: ** the name is the field name and the value is the value of the field.
914: */
915: PUBLIC BOOL HTPutStructuredRelative (HTParentAnchor * source,
916: const char * relative,
917: HTParentAnchor * destination_base,
918: HTRequest * request,
919: HTPostCallback * input)
920: {
921: if (source && relative && destination_base && request && input) {
922: BOOL status;
923: char * full_url = NULL;
924: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
925: full_url=HTParse(relative, base_url,
926: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
927: status = HTPutStructuredAbsolute(source, full_url, request, input);
928: HT_FREE(full_url);
929: HT_FREE(base_url);
930: return status;
931: }
932: return NO;
933: }
934:
935: /* Send an Anchor using PUT from an anchor
936: ** ---------------------------------------
937: ** Upload a document referenced by an anchor object appended
938: ** The URL can NOT contain any fragment identifier!
939: ** The list of form data must be given as an association list where
940: ** the name is the field name and the value is the value of the field.
941: */
942: PUBLIC BOOL HTPutStructuredAnchor (HTParentAnchor * source,
943: HTAnchor * destination,
944: HTRequest * request,
945: HTPostCallback * input)
946: {
947: HTParentAnchor * dest = HTAnchor_parent(destination);
948: if (source && dest && request) {
1.131 frystyk 949: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 950:
951: /* Set up the request object */
952: HTRequest_addGnHd(request, HT_G_DATE);
1.133 ! frystyk 953: HTRequest_addRqHd(request, HT_C_IF_MATCH);
1.124 frystyk 954: HTRequest_setEntityAnchor(request, source);
955: HTRequest_setMethod(request, METHOD_PUT);
956: HTRequest_setAnchor(request, destination);
957:
958: /* Add the entity callback function to provide the form data */
959: HTRequest_setPostCallback(request, input);
960:
961: /* Now start the load normally */
962: return launch_request(request, NO);
963: }
964: }
965: return NO;
966: }
967:
968: /*
969: ** After filter for handling PUT of document. We should now have the
970: */
971: PRIVATE int HTSaveFilter (HTRequest * request, void * param, int status)
972: {
973: HTPutContext * me = (HTPutContext *) param;
974: if (APP_TRACE)
975: HTTrace("Save Filter. Using context %p with state %c\n",
976: me, me->state+0x30);
977:
978: /*
1.125 frystyk 979: ** Just ignore authentication in the hope that some other filter will
980: ** handle this.
981: */
982: if (status == HT_NO_ACCESS || status == HT_NO_PROXY_ACCESS) {
983: if (APP_TRACE) HTTrace("Save Filter. Waiting for authentication\n");
984: return HT_OK;
985: }
986:
987: /*
1.124 frystyk 988: ** If either the source or the destination has moved then ask the user
989: ** what to do. If there is no user then stop
990: */
991: if (status == HT_TEMP_REDIRECT || status == HT_PERM_REDIRECT) {
992: HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
993: HTAnchor * redirection = HTRequest_redirection(request);
994: if (prompt && redirection) {
1.125 frystyk 995: if (me->state == HT_LOAD_SOURCE) {
1.124 frystyk 996: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_SOURCE_MOVED,
997: NULL, NULL, NULL) == YES) {
998: me->source = HTAnchor_parent(redirection);
1.128 frystyk 999: } else {
1000: /*
1001: ** Make sure that the operation stops
1002: */
1003: me->state = HT_ABORT_SAVE;
1.124 frystyk 1004: }
1005: } else {
1006: if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_DESTINATION_MOVED,
1007: NULL, NULL, NULL) == YES) {
1008: me->destination = redirection;
1.128 frystyk 1009: } else {
1010: /*
1011: ** Make sure that the operation stops
1012: */
1013: me->state = HT_ABORT_SAVE;
1.124 frystyk 1014: }
1015: }
1016: }
1.128 frystyk 1017: return HT_OK;
1.124 frystyk 1018: }
1019:
1020: /*
1.125 frystyk 1021: ** If we succeeded getting the source then start the PUT itself. Otherwise
1022: ** cleanup the mess
1.124 frystyk 1023: */
1.125 frystyk 1024: if (me->state == HT_LOAD_SOURCE && status == HT_LOADED &&
1025: !HTError_hasSeverity(HTRequest_error(request), ERR_INFO)) {
1.124 frystyk 1026:
1027: /* Swap the document in the anchor with the new one */
1028: me->placeholder = HTAnchor_document(me->source);
1029: HTAnchor_setDocument(me->source, HTChunk_data(me->document));
1030:
1031: /* Set up the request object */
1032: HTRequest_addGnHd(request, HT_G_DATE);
1.133 ! frystyk 1033: HTRequest_addRqHd(request, HT_C_IF_MATCH);
1.124 frystyk 1034: HTRequest_setEntityAnchor(request, me->source);
1035: HTRequest_setMethod(request, METHOD_PUT);
1036: HTRequest_setAnchor(request, me->destination);
1037: HTRequest_setOutputFormat(request, me->format);
1038: HTRequest_setOutputStream(request, me->target);
1039:
1.125 frystyk 1040: /* Turn progress notifications back on */
1041: HTRequest_setInternal(request, NO);
1042:
1.124 frystyk 1043: /* Add the entity callback function to provide the form data */
1044: HTRequest_setPostCallback(request, HTEntity_callback);
1045:
1046: /* Now start the load normally */
1047: me->state = launch_request(request, NO) ?
1.125 frystyk 1048: HT_SAVE_DEST : HT_LOAD_SOURCE;
1.124 frystyk 1049:
1050: /*
1051: ** By returning HT_ERROR we make sure that this is the last handler to
1052: ** be called. We do this as we don't want any other filter to delete
1053: ** the request object now when we have just started a new one
1054: ** ourselves
1055: */
1056: return HT_ERROR;
1057:
1058: } else {
1059: HTRequest_deleteAfter(request, HTSaveFilter);
1060: HTAnchor_setDocument(me->source, me->placeholder);
1061: HTChunk_delete(me->document);
1062: HT_FREE(me);
1063: }
1064: return HT_OK;
1065: }
1066:
1067: /* Send an Anchor using PUT from absolute name
1068: ** -------------------------------------------
1069: ** Upload a document referenced by an absolute URL appended.
1070: ** The URL can NOT contain any fragment identifier!
1071: ** The list of form data must be given as an association list where
1072: ** the name is the field name and the value is the value of the field.
1073: */
1074: PUBLIC BOOL HTPutDocumentAbsolute (HTParentAnchor * source,
1075: const char * destination,
1076: HTRequest * request)
1077: {
1078: if (source && destination && request) {
1079: HTAnchor * dest = HTAnchor_findAddress(destination);
1080: return HTPutDocumentAnchor(source, dest, request);
1081: }
1082: return NO;
1083: }
1084:
1085: /* Send an Anchor using PUT from relative name
1086: ** -------------------------------------------
1087: ** Upload a document referenced by a relative URL appended.
1088: ** The URL can NOT contain any fragment identifier!
1089: ** The list of form data must be given as an association list where
1090: ** the name is the field name and the value is the value of the field.
1091: */
1092: PUBLIC BOOL HTPutDocumentRelative (HTParentAnchor * source,
1093: const char * relative,
1094: HTParentAnchor * destination_base,
1095: HTRequest * request)
1096: {
1097: if (source && relative && destination_base && request) {
1098: BOOL status;
1099: char * full_url = NULL;
1100: char * base_url = HTAnchor_address((HTAnchor *) destination_base);
1101: full_url=HTParse(relative, base_url,
1102: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1103: status = HTPutDocumentAbsolute(source, full_url, request);
1104: HT_FREE(full_url);
1105: HT_FREE(base_url);
1106: return status;
1107: }
1108: return NO;
1109: }
1110:
1111: /* Send an Anchor using PUT from an anchor
1112: ** ---------------------------------------
1113: ** Upload a document referenced by an anchor object appended
1114: ** The URL can NOT contain any fragment identifier!
1115: ** The source document is first loaded into memory and then the PUT
1116: ** to the remote server is done using the memory version
1117: */
1118: PUBLIC BOOL HTPutDocumentAnchor (HTParentAnchor * source,
1119: HTAnchor * destination,
1120: HTRequest * request)
1121: {
1122: HTParentAnchor * dest = HTAnchor_parent(destination);
1123: if (source && dest && request) {
1.131 frystyk 1124: if (setup_anchors(request, source, dest, METHOD_PUT) == YES) {
1.124 frystyk 1125: HTPutContext * context = NULL;
1126:
1127: /*
1128: ** First we register an AFTER filter that can check the result
1129: ** of the source load if success then it can start the PUT
1130: ** operation to the destination.
1131: */
1132: if (!(context=(HTPutContext *) HT_CALLOC(1, sizeof(HTPutContext))))
1133: HT_OUTOFMEM("HTPutDocumentAnchor");
1134: context->source = source;
1135: context->destination = destination;
1136: HTRequest_addAfter(request, HTSaveFilter, context, HT_ALL, NO);
1.125 frystyk 1137:
1138: /* Turn off progress notifications */
1139: HTRequest_setInternal(request, YES);
1.124 frystyk 1140:
1141: /*
1142: ** We make sure that we are not using a memory cached element.
1143: ** It's OK to use a file cached element!
1144: */
1.133 ! frystyk 1145: HTRequest_setReloadMode(request, HT_CACHE_FLUSH_MEM);
1.124 frystyk 1146:
1147: /*
1148: ** Now we load the source document into a chunk. We specify that
1149: ** we want the document ASIS from the source location.
1150: */
1151: context->format = HTRequest_outputFormat(request);
1152: context->target = HTRequest_outputStream(request);
1153: HTRequest_setOutputFormat(request, WWW_SOURCE);
1154: context->document = HTLoadAnchorToChunk((HTAnchor*)source,request);
1155: if (context->document == NULL) {
1156: if (APP_TRACE) HTTrace("Put Document No source\n");
1157: HT_FREE(context);
1158: return NO;
1159: }
1160: return YES;
1161: }
1162: }
1163: return NO;
1164: }
1165:
1166: /* ------------------------------------------------------------------------- */
1.70 frystyk 1167:
1.90 frystyk 1168: /* Copy an anchor
1.70 frystyk 1169: ** --------------
1.90 frystyk 1170: ** Fetch the URL (possibly local file URL) and send it using either PUT
1171: ** or POST to the remote destination using HTTP. The caller can decide the
1172: ** exact method used and which HTTP header fields to transmit by setting
1173: ** the user fields in the request structure.
1.92 frystyk 1174: ** If posting to NNTP then we can't dispatch at this level but must pass
1175: ** the source anchor to the news module that then takes all the refs
1176: ** to NNTP and puts into the "newsgroups" header
1.70 frystyk 1177: */
1.109 frystyk 1178: PUBLIC BOOL HTCopyAnchor (HTAnchor * src_anchor, HTRequest * main_dest)
1.80 frystyk 1179: {
1.106 frystyk 1180: HTRequest * src_req;
1181: HTList * cur;
1.109 frystyk 1182: if (!src_anchor || !main_dest) {
1.115 eric 1183: if (WWWTRACE) HTTrace("Copy........ BAD ARGUMENT\n");
1.90 frystyk 1184: return NO;
1.109 frystyk 1185: }
1.70 frystyk 1186:
1.112 frystyk 1187: /* Set the source anchor */
1188: main_dest->source_anchor = HTAnchor_parent(src_anchor);
1189:
1.80 frystyk 1190: /* Build the POST web if not already there */
1.109 frystyk 1191: if (!main_dest->source) {
1192: src_req = HTRequest_dupInternal(main_dest); /* Get a duplicate */
1.80 frystyk 1193: HTAnchor_clearHeader((HTParentAnchor *) src_anchor);
1.109 frystyk 1194: src_req->method = METHOD_GET;
1.133 ! frystyk 1195: src_req->reload = HT_CACHE_FLUSH_MEM;
1.104 frystyk 1196: src_req->output_stream = NULL;
1.80 frystyk 1197: src_req->output_format = WWW_SOURCE; /* We want source (for now) */
1198:
1199: /* Set up the main link in the source anchor */
1200: {
1.106 frystyk 1201: HTLink * main_link = HTAnchor_mainLink((HTAnchor *) src_anchor);
1202: HTAnchor *main_anchor = HTLink_destination(main_link);
1203: HTMethod method = HTLink_method(main_link);
1.85 frystyk 1204: if (!main_link || method==METHOD_INVALID) {
1.91 frystyk 1205: if (WWWTRACE)
1.115 eric 1206: HTTrace("Copy Anchor. No destination found or unspecified method\n");
1.80 frystyk 1207: HTRequest_delete(src_req);
1.90 frystyk 1208: return NO;
1.80 frystyk 1209: }
1.109 frystyk 1210: main_dest->GenMask |= HT_G_DATE; /* Send date header */
1.133 ! frystyk 1211: main_dest->reload = HT_CACHE_VALIDATE;
1.109 frystyk 1212: main_dest->method = method;
1213: main_dest->input_format = WWW_SOURCE;
1214: HTRequest_addDestination(src_req, main_dest);
1215: if (HTLoadAnchor(main_anchor, main_dest) == NO)
1216: return NO;
1.80 frystyk 1217: }
1.78 frystyk 1218:
1.80 frystyk 1219: /* For all other links in the source anchor */
1.106 frystyk 1220: if ((cur = HTAnchor_subLinks(src_anchor))) {
1221: HTLink * pres;
1.109 frystyk 1222: while ((pres = (HTLink *) HTList_nextObject(cur))) {
1.106 frystyk 1223: HTAnchor *dest = HTLink_destination(pres);
1224: HTMethod method = HTLink_method(pres);
1.80 frystyk 1225: HTRequest *dest_req;
1226: if (!dest || method==METHOD_INVALID) {
1.91 frystyk 1227: if (WWWTRACE)
1.115 eric 1228: HTTrace("Copy Anchor. Bad anchor setup %p\n",
1.80 frystyk 1229: dest);
1.90 frystyk 1230: return NO;
1.80 frystyk 1231: }
1.109 frystyk 1232: dest_req = HTRequest_dupInternal(main_dest);
1.107 frystyk 1233: dest_req->GenMask |= HT_G_DATE; /* Send date header */
1.133 ! frystyk 1234: dest_req->reload = HT_CACHE_VALIDATE;
1.80 frystyk 1235: dest_req->method = method;
1.104 frystyk 1236: dest_req->output_stream = NULL;
1237: dest_req->output_format = WWW_SOURCE;
1.109 frystyk 1238: HTRequest_addDestination(src_req, dest_req);
1.104 frystyk 1239:
1.90 frystyk 1240: if (HTLoadAnchor(dest, dest_req) == NO)
1241: return NO;
1.80 frystyk 1242: }
1243: }
1244: } else { /* Use the existing Post Web and restart it */
1.109 frystyk 1245: src_req = main_dest->source;
1.80 frystyk 1246: if (src_req->mainDestination)
1.124 frystyk 1247: if (launch_request(main_dest, NO) == NO)
1.90 frystyk 1248: return NO;
1.80 frystyk 1249: if (src_req->destinations) {
1.106 frystyk 1250: HTRequest * pres;
1251: cur = HTAnchor_subLinks(src_anchor);
1.80 frystyk 1252: while ((pres = (HTRequest *) HTList_nextObject(cur)) != NULL) {
1.124 frystyk 1253: if (launch_request(pres, NO) == NO)
1.90 frystyk 1254: return NO;
1.80 frystyk 1255: }
1256: }
1.78 frystyk 1257: }
1258:
1.80 frystyk 1259: /* Now open the source */
1260: return HTLoadAnchor(src_anchor, src_req);
1.70 frystyk 1261: }
1262:
1.90 frystyk 1263: /* Upload an Anchor
1.70 frystyk 1264: ** ----------------
1.111 frystyk 1265: ** This function can be used to send data along with a request to a remote
1266: ** server. It can for example be used to POST form data to a remote HTTP
1267: ** server - or it can be used to post a newsletter to a NNTP server. In
1268: ** either case, you pass a callback function which the request calls when
1269: ** the remote destination is ready to accept data. In this callback
1270: ** you get the current request object and a stream into where you can
1271: ** write data. It is very important that you return the value returned
1272: ** by this stream to the Library so that it knows what to do next. The
1273: ** reason is that the outgoing stream might block or an error may
1274: ** occur and in that case the Library must know about it. The source
1275: ** anchor represents the data object in memory and it points to
1276: ** the destination anchor by using the POSTWeb method. The source anchor
1277: ** contains metainformation about the data object in memory and the
1278: ** destination anchor represents the reponse from the remote server.
1.90 frystyk 1279: ** Returns YES if request accepted, else NO
1280: */
1.111 frystyk 1281: PUBLIC BOOL HTUploadAnchor (HTAnchor * source_anchor,
1282: HTRequest * request,
1283: HTPostCallback * callback)
1284: {
1285: HTLink * link = HTAnchor_mainLink((HTAnchor *) source_anchor);
1286: HTAnchor * dest_anchor = HTLink_destination(link);
1287: HTMethod method = HTLink_method(link);
1288: if (!link || method==METHOD_INVALID || !callback) {
1289: if (WWWTRACE)
1.115 eric 1290: HTTrace("Upload...... No destination found or unspecified method\n");
1.90 frystyk 1291: return NO;
1.109 frystyk 1292: }
1.111 frystyk 1293: request->GenMask |= HT_G_DATE; /* Send date header */
1.133 ! frystyk 1294: request->reload = HT_CACHE_VALIDATE;
1.111 frystyk 1295: request->method = method;
1296: request->source_anchor = HTAnchor_parent(source_anchor);
1297: request->PostCallback = callback;
1298: return HTLoadAnchor(dest_anchor, request);
1299: }
1300:
1301: /* POST Callback Handler
1302: ** ---------------------
1303: ** If you do not want to handle the stream interface on your own, you
1304: ** can use this function which writes the source anchor hyperdoc to the
1305: ** target stream for the anchor upload and also handles the return value
1306: ** from the stream. If you don't want to write the source anchor hyperdoc
1307: ** then you can register your own callback function that can get the data
1308: ** you want.
1309: */
1310: PUBLIC int HTUpload_callback (HTRequest * request, HTStream * target)
1311: {
1.115 eric 1312: if (WWWTRACE) HTTrace("Uploading... from callback function\n");
1.111 frystyk 1313: if (!request || !request->source_anchor || !target) return HT_ERROR;
1314: {
1315: int status;
1316: HTParentAnchor * source = request->source_anchor;
1317: char * document = (char *) HTAnchor_document(request->source_anchor);
1318: int len = HTAnchor_length(source);
1319: if (len < 0) {
1320: len = strlen(document);
1321: HTAnchor_setLength(source, len);
1322: }
1323: status = (*target->isa->put_block)(target, document, len);
1324: if (status == HT_OK)
1325: return (*target->isa->flush)(target);
1326: if (status == HT_WOULD_BLOCK) {
1.115 eric 1327: if (PROT_TRACE)HTTrace("POST Anchor. Target WOULD BLOCK\n");
1.111 frystyk 1328: return HT_WOULD_BLOCK;
1329: } else if (status == HT_PAUSE) {
1.115 eric 1330: if (PROT_TRACE) HTTrace("POST Anchor. Target PAUSED\n");
1.111 frystyk 1331: return HT_PAUSE;
1332: } else if (status > 0) { /* Stream specific return code */
1333: if (PROT_TRACE)
1.115 eric 1334: HTTrace("POST Anchor. Target returns %d\n", status);
1.111 frystyk 1335: return status;
1.120 eric 1336: } else { /* we have a real error */
1.115 eric 1337: if (PROT_TRACE) HTTrace("POST Anchor. Target ERROR\n");
1.111 frystyk 1338: return status;
1339: }
1.70 frystyk 1340: }
1.123 frystyk 1341: }
1342:
1343: /* ------------------------------------------------------------------------- */
1344: /* HEAD METHOD */
1345: /* ------------------------------------------------------------------------- */
1346:
1347: /* Request metainformation about a document from absolute name
1348: ** -----------------------------------------------------------
1349: ** Request a document referencd by an absolute URL.
1350: ** Returns YES if request accepted, else NO
1351: */
1352: PUBLIC BOOL HTHeadAbsolute (const char * url, HTRequest * request)
1353: {
1354: if (url && request) {
1355: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1356: return HTHeadAnchor(anchor, request);
1.123 frystyk 1357: }
1358: return NO;
1359: }
1360:
1361: /* Request metainformation about a document from relative name
1362: ** -----------------------------------------------------------
1363: ** Request a document referenced by a relative URL. The relative URL is
1364: ** made absolute by resolving it relative to the address of the 'base'
1365: ** anchor.
1366: ** Returns YES if request accepted, else NO
1367: */
1368: PUBLIC BOOL HTHeadRelative (const char * relative,
1369: HTParentAnchor * base,
1370: HTRequest * request)
1371: {
1372: BOOL status = NO;
1373: if (relative && base && request) {
1374: char * rel = NULL;
1375: char * full_url = NULL;
1376: char * base_url = HTAnchor_address((HTAnchor *) base);
1377: StrAllocCopy(rel, relative);
1378: full_url = HTParse(HTStrip(rel), base_url,
1379: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1380: status = HTHeadAbsolute(full_url, request);
1.123 frystyk 1381: HT_FREE(rel);
1382: HT_FREE(full_url);
1383: HT_FREE(base_url);
1384: }
1385: return status;
1386: }
1387:
1388: /* Request metainformation about an anchor
1389: ** --------------------------------------
1390: ** Request the document referenced by the anchor
1391: ** Returns YES if request accepted, else NO
1392: */
1393: PUBLIC BOOL HTHeadAnchor (HTAnchor * anchor, HTRequest * request)
1394: {
1395: if (anchor && request) {
1396: HTRequest_setAnchor(request, anchor);
1.130 frystyk 1397: HTRequest_setOutputFormat(request, WWW_DEBUG);
1.123 frystyk 1398: HTRequest_setMethod(request, METHOD_HEAD);
1.124 frystyk 1399: return launch_request(request, NO);
1.123 frystyk 1400: }
1401: return NO;
1402: }
1403:
1404: /* ------------------------------------------------------------------------- */
1405: /* DELETE METHOD */
1406: /* ------------------------------------------------------------------------- */
1407:
1408: /* Delete a document on a remote server
1409: ** ------------------------------------
1410: ** Request a document referencd by an absolute URL.
1411: ** Returns YES if request accepted, else NO
1412: */
1413: PUBLIC BOOL HTDeleteAbsolute (const char * url, HTRequest * request)
1414: {
1415: if (url && request) {
1416: HTAnchor * anchor = HTAnchor_findAddress(url);
1.124 frystyk 1417: return HTDeleteAnchor(anchor, request);
1.123 frystyk 1418: }
1419: return NO;
1420: }
1421:
1422: /* Request metainformation about a document from relative name
1423: ** -----------------------------------------------------------
1424: ** Request a document referenced by a relative URL. The relative URL is
1425: ** made absolute by resolving it relative to the address of the 'base'
1426: ** anchor.
1427: ** Returns YES if request accepted, else NO
1428: */
1429: PUBLIC BOOL HTDeleteRelative (const char * relative,
1430: HTParentAnchor * base,
1431: HTRequest * request)
1432: {
1433: BOOL status = NO;
1434: if (relative && base && request) {
1435: char * rel = NULL;
1436: char * full_url = NULL;
1437: char * base_url = HTAnchor_address((HTAnchor *) base);
1438: StrAllocCopy(rel, relative);
1439: full_url = HTParse(HTStrip(rel), base_url,
1440: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.124 frystyk 1441: status = HTDeleteAbsolute(full_url, request);
1.123 frystyk 1442: HT_FREE(rel);
1443: HT_FREE(full_url);
1444: HT_FREE(base_url);
1445: }
1446: return status;
1447: }
1448:
1449: /* Request metainformation about an anchor
1450: ** --------------------------------------
1451: ** Request the document referenced by the anchor
1452: ** Returns YES if request accepted, else NO
1453: */
1454: PUBLIC BOOL HTDeleteAnchor (HTAnchor * anchor, HTRequest * request)
1455: {
1456: if (anchor && request) {
1457: HTRequest_setAnchor(request, anchor);
1458: HTRequest_setMethod(request, METHOD_DELETE);
1.124 frystyk 1459: return launch_request(request, NO);
1460: }
1461: return NO;
1462: }
1463:
1464: /* ------------------------------------------------------------------------- */
1465: /* OPTIONS METHOD */
1466: /* ------------------------------------------------------------------------- */
1467:
1468: /* Options availeble for document from absolute name
1469: ** -------------------------------------------------
1470: ** Request a document referencd by an absolute URL.
1471: ** Returns YES if request accepted, else NO
1472: */
1473: PUBLIC BOOL HTOptionsAbsolute (const char * url, HTRequest * request)
1474: {
1475: if (url && request) {
1476: HTAnchor * anchor = HTAnchor_findAddress(url);
1477: return HTOptionsAnchor(anchor, request);
1478: }
1479: return NO;
1480: }
1481:
1482: /* Options available for document from relative name
1483: ** -------------------------------------------------
1484: ** Request a document referenced by a relative URL. The relative URL is
1485: ** made absolute by resolving it relative to the address of the 'base'
1486: ** anchor.
1487: ** Returns YES if request accepted, else NO
1488: */
1489: PUBLIC BOOL HTOptionsRelative (const char * relative,
1490: HTParentAnchor * base,
1491: HTRequest * request)
1492: {
1493: BOOL status = NO;
1494: if (relative && base && request) {
1495: char * rel = NULL;
1496: char * full_url = NULL;
1497: char * base_url = HTAnchor_address((HTAnchor *) base);
1498: StrAllocCopy(rel, relative);
1499: full_url = HTParse(HTStrip(rel), base_url,
1500: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1501: status = HTOptionsAbsolute(full_url, request);
1502: HT_FREE(rel);
1503: HT_FREE(full_url);
1504: HT_FREE(base_url);
1505: }
1506: return status;
1507: }
1508:
1509: /* Options available for document using Anchor
1510: ** -------------------------------------------
1511: ** Request the document referenced by the anchor
1512: ** Returns YES if request accepted, else NO
1513: */
1514: PUBLIC BOOL HTOptionsAnchor (HTAnchor * anchor, HTRequest * request)
1515: {
1516: if (anchor && request) {
1517: HTRequest_setAnchor(request, anchor);
1518: HTRequest_setMethod(request, METHOD_OPTIONS);
1519: return launch_request(request, NO);
1.123 frystyk 1520: }
1521: return NO;
1.1 timbl 1522: }
1.127 frystyk 1523:
1524: /* ------------------------------------------------------------------------- */
1525: /* TRACE METHOD */
1526: /* ------------------------------------------------------------------------- */
1527:
1528: /* Traces available for document from absolute name
1529: ** ------------------------------------------------
1530: ** Request a document referencd by an absolute URL.
1531: ** Returns YES if request accepted, else NO
1532: */
1533: PUBLIC BOOL HTTraceAbsolute (const char * url, HTRequest * request)
1534: {
1535: if (url && request) {
1536: HTAnchor * anchor = HTAnchor_findAddress(url);
1537: return HTTraceAnchor(anchor, request);
1538: }
1539: return NO;
1540: }
1541:
1542: /* Traces available for document from relative name
1543: ** ------------------------------------------------
1544: ** Request a document referenced by a relative URL. The relative URL is
1545: ** made absolute by resolving it relative to the address of the 'base'
1546: ** anchor.
1547: ** Returns YES if request accepted, else NO
1548: */
1549: PUBLIC BOOL HTTraceRelative (const char * relative,
1550: HTParentAnchor * base,
1551: HTRequest * request)
1552: {
1553: BOOL status = NO;
1554: if (relative && base && request) {
1555: char * rel = NULL;
1556: char * full_url = NULL;
1557: char * base_url = HTAnchor_address((HTAnchor *) base);
1558: StrAllocCopy(rel, relative);
1559: full_url = HTParse(HTStrip(rel), base_url,
1560: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1561: status = HTTraceAbsolute(full_url, request);
1562: HT_FREE(rel);
1563: HT_FREE(full_url);
1564: HT_FREE(base_url);
1565: }
1566: return status;
1567: }
1568:
1569: /* Trace available for document using Anchor
1570: ** -------------------------------------------
1571: ** Request the document referenced by the anchor
1572: ** Returns YES if request accepted, else NO
1573: */
1574: PUBLIC BOOL HTTraceAnchor (HTAnchor * anchor, HTRequest * request)
1575: {
1576: if (anchor && request) {
1577: HTRequest_setAnchor(request, anchor);
1578: HTRequest_setMethod(request, METHOD_TRACE);
1579: return launch_request(request, NO);
1580: }
1581: return NO;
1582: }
1583:
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