Annotation of libwww/Library/src/HTAccess.c, revision 1.64
1.61 frystyk 1: /* HTAccess.c
2: ** ACCESS MANAGER
3: **
4: ** (c) COPYRIGHT CERN 1994.
5: ** Please first read the full copyright statement in the file COPYRIGH.
1.1 timbl 6: **
7: ** Authors
8: ** TBL Tim Berners-Lee timbl@info.cern.ch
1.4 timbl 9: ** JFG Jean-Francois Groff jfg@dxcern.cern.ch
1.1 timbl 10: ** DD Denis DeLaRoca (310) 825-4580 <CSP1DWD@mvs.oac.ucla.edu>
11: ** History
12: ** 8 Jun 92 Telnet hopping prohibited as telnet is not secure TBL
13: ** 26 Jun 92 When over DECnet, suppressed FTP, Gopher and News. JFG
1.42 frystyk 14: ** 6 Oct 92 Moved HTClientHost and HTlogfile into here. TBL
1.1 timbl 15: ** 17 Dec 92 Tn3270 added, bug fix. DD
1.2 timbl 16: ** 4 Feb 93 Access registration, Search escapes bad chars TBL
1.9 timbl 17: ** PARAMETERS TO HTSEARCH AND HTLOADRELATIVE CHANGED
18: ** 28 May 93 WAIS gateway explicit if no WAIS library linked in.
1.19 timbl 19: ** Dec 93 Bug change around, more reentrant, etc
1.42 frystyk 20: ** 09 May 94 logfile renamed to HTlogfile to avoid clash with WAIS
1.53 duns 21: ** 8 Jul 94 Insulate free() from _free structure element.
1.2 timbl 22: ** Bugs
23: ** This module assumes that that the graphic object is hypertext, as it
1.9 timbl 24: ** needs to select it when it has been loaded. A superclass needs to be
1.2 timbl 25: ** defined which accepts select and select_anchor.
1.1 timbl 26: */
27:
1.9 timbl 28: #ifndef DEFAULT_WAIS_GATEWAY
1.8 timbl 29: #define DEFAULT_WAIS_GATEWAY "http://info.cern.ch:8001/"
1.54 frystyk 30: #endif
1.8 timbl 31:
1.1 timbl 32: /* Implements:
33: */
34: #include "HTAccess.h"
35:
36: /* Uses:
37: */
38:
39: #include "HTParse.h"
40: #include "HTUtils.h"
1.4 timbl 41: #include "HTML.h" /* SCW */
1.2 timbl 42:
43: #ifndef NO_RULES
44: #include "HTRules.h"
45: #endif
46:
47: #include "HTList.h"
48: #include "HText.h" /* See bugs above */
49: #include "HTAlert.h"
1.17 timbl 50: #include "HTFWriter.h" /* for cache stuff */
51: #include "HTTee.h"
1.46 frystyk 52: #include "HTError.h"
1.57 howcome 53: #include "HTTCP.h" /* HWL: for HTFindRelatedName */
1.63 frystyk 54: #include "HTFile.h"
1.59 frystyk 55: #include "HTThread.h"
1.63 frystyk 56: #include "HTEvent.h"
1.2 timbl 57:
1.54 frystyk 58: /* These flags may be set to modify the operation of this module */
59: PUBLIC char * HTCacheDir = NULL; /* Root for cached files or 0 for no cache */
60: PUBLIC char * HTSaveLocallyDir = SAVE_LOCALLY_HOME_DIR; /* Save & exe files */
61: PUBLIC char * HTClientHost = 0; /* Name of remote login host if any */
62: PUBLIC FILE * HTlogfile = 0; /* File to which to output one-liners */
1.41 luotonen 63:
1.34 frystyk 64: PUBLIC BOOL HTForceReload = NO; /* Force reload from cache or net */
1.12 timbl 65: PUBLIC BOOL HTSecure = NO; /* Disable access for telnet users? */
1.27 luotonen 66: PUBLIC BOOL using_proxy = NO; /* are we using a proxy gateway? */
1.43 luotonen 67: PUBLIC char * HTImServer = NULL;/* cern_httpd sets this to the translated URL*/
1.27 luotonen 68: PUBLIC BOOL HTImProxy = NO; /* cern_httpd as a proxy? */
1.1 timbl 69:
1.63 frystyk 70: PRIVATE HTList * protocols = NULL; /* List of registered protocols */
1.43 luotonen 71:
1.63 frystyk 72: /* Superclass defn */
1.24 timbl 73: struct _HTStream {
74: HTStreamClass * isa;
75: /* ... */
76: };
77:
1.59 frystyk 78: /* --------------------------------------------------------------------------*/
79: /* Management of the HTRequest structure */
80: /* --------------------------------------------------------------------------*/
81:
1.15 timbl 82: /* Create a request structure
83: ** ---------------------------
84: */
85: PUBLIC HTRequest * HTRequest_new NOARGS
86: {
1.28 luotonen 87: HTRequest * me = (HTRequest*) calloc(1, sizeof(*me)); /* zero fill */
1.15 timbl 88: if (!me) outofmem(__FILE__, "HTRequest_new()");
89:
1.20 luotonen 90: me->conversions = HTList_new(); /* No conversions registerd yet */
91: me->output_format = WWW_PRESENT; /* default it to present to user */
92:
1.15 timbl 93: return me;
94: }
95:
96:
1.49 frystyk 97: /* Clear a request structure
98: ** ---------------------------
99: ** This function clears the reguest structure so that only the
100: ** conversions remain. Everything else is as if it was created from
101: ** scratch.
102: */
103: PUBLIC void HTRequest_clear ARGS1(HTRequest *, req)
104: {
105: HTList *conversions;
106: if (!req) {
107: if (TRACE)
108: fprintf(stderr, "Clear....... request: Bad argument!\n");
109: return;
110: }
111: conversions = req->conversions; /* Save the conversions */
112: HTErrorFree(req);
113: HTAACleanup(req);
114: memset(req, '\0', sizeof(HTRequest));
115:
116: /* Now initialize as from scratch but with the old list of conversions */
117: req->conversions = conversions;
118: req->output_format = WWW_PRESENT; /* default it to present to user */
119: }
120:
121:
1.20 luotonen 122: /* Delete a request structure
123: ** --------------------------
124: */
125: PUBLIC void HTRequest_delete ARGS1(HTRequest *, req)
126: {
127: if (req) {
1.59 frystyk 128: FREE(req->redirect);
129: FREE(req->authenticate);
130: HTFormatDelete(req);
1.46 frystyk 131: HTErrorFree(req);
1.34 frystyk 132: HTAACleanup(req);
1.61 frystyk 133:
134: /* These are temporary until we get a MIME thingy */
135: FREE(req->redirect);
136: FREE(req->WWWAAScheme);
137: FREE(req->WWWAARealm);
138: FREE(req->WWWprotection);
139:
1.34 frystyk 140: FREE(req);
1.20 luotonen 141: }
142: }
143:
1.59 frystyk 144: /* --------------------------------------------------------------------------*/
145: /* Management of HTTP Methods */
146: /* --------------------------------------------------------------------------*/
1.20 luotonen 147:
1.22 luotonen 148: PRIVATE char * method_names[(int)MAX_METHODS + 1] =
149: {
150: "INVALID-METHOD",
151: "GET",
152: "HEAD",
153: "POST",
154: "PUT",
155: "DELETE",
156: "CHECKOUT",
157: "CHECKIN",
158: "SHOWMETHOD",
159: "LINK",
160: "UNLINK",
161: NULL
162: };
163:
164: /* Get method enum value
165: ** ---------------------
166: */
167: PUBLIC HTMethod HTMethod_enum ARGS1(char *, name)
168: {
169: if (name) {
170: int i;
171: for (i=1; i < (int)MAX_METHODS; i++)
172: if (!strcmp(name, method_names[i]))
173: return (HTMethod)i;
174: }
175: return METHOD_INVALID;
176: }
177:
178:
179: /* Get method name
180: ** ---------------
181: */
182: PUBLIC char * HTMethod_name ARGS1(HTMethod, method)
183: {
184: if ((int)method > (int)METHOD_INVALID &&
185: (int)method < (int)MAX_METHODS)
186: return method_names[(int)method];
187: else
188: return method_names[(int)METHOD_INVALID];
189: }
190:
191:
192: /* Is method in a list of method names?
193: ** -----------------------------------
194: */
195: PUBLIC BOOL HTMethod_inList ARGS2(HTMethod, method,
196: HTList *, list)
197: {
198: char * method_name = HTMethod_name(method);
199: HTList *cur = list;
200: char *item;
201:
202: while (NULL != (item = (char*)HTList_nextObject(cur))) {
203: CTRACE(stderr, " %s", item);
204: if (0==strcasecomp(item, method_name))
205: return YES;
206: }
207: return NO; /* Not found */
208: }
209:
210:
1.59 frystyk 211: /* --------------------------------------------------------------------------*/
212: /* Management of the HTProtocol structure */
213: /* --------------------------------------------------------------------------*/
1.22 luotonen 214:
1.63 frystyk 215: /*
216: ** Register a Protocol as an active access method
1.1 timbl 217: */
1.56 frystyk 218: PUBLIC BOOL HTRegisterProtocol ARGS1(HTProtocol *, protocol)
1.1 timbl 219: {
220: if (!protocols) protocols = HTList_new();
1.59 frystyk 221: HTList_addObject(protocols, (void *) protocol);
1.1 timbl 222: return YES;
223: }
224:
1.63 frystyk 225:
226: /*
227: ** Delete the list of registered access methods. This is called from
228: ** within HTLibTerminate. Written by Eric Sink, eric@spyglass.com
229: */
230: PUBLIC void HTDisposeProtocols NOARGS
231: {
232: if (protocols) {
233: HTList_delete(protocols);
234: protocols = NULL;
235: }
236: }
237:
238:
239: /*
240: ** Is a protocol registered as BLOCKING? returns YES or NO
241: */
1.59 frystyk 242: PUBLIC BOOL HTProtocolBlocking ARGS1(HTRequest *, me)
243: {
1.64 ! frystyk 244: return (me && me->anchor && me->anchor->protocol &&
! 245: ((HTProtocol *) (me->anchor->protocol))->block == SOC_BLOCK);
1.59 frystyk 246: }
247:
1.61 frystyk 248: /* --------------------------------------------------------------------------*/
249: /* Initialization and Termination of the Library */
250: /* --------------------------------------------------------------------------*/
251:
1.1 timbl 252: /* Register all known protocols
253: ** ----------------------------
254: **
1.61 frystyk 255: ** Add to or subtract from this list if you add or remove protocol
256: ** modules. This function is called from HTLibInit()
1.1 timbl 257: **
258: ** Compiling with NO_INIT prevents all known protocols from being forced
259: ** in at link time.
260: */
1.61 frystyk 261: PRIVATE void HTAccessInit NOARGS
1.1 timbl 262: {
1.59 frystyk 263: GLOBALREF HTProtocol HTTP, HTFile, HTTelnet, HTTn3270, HTRlogin;
1.1 timbl 264: #ifndef DECNET
1.54 frystyk 265: #ifdef NEW_CODE
1.59 frystyk 266: GLOBALREF HTProtocol HTFTP, HTNews, HTNNTP, HTGopher;
267: #endif
268: GLOBALREF HTProtocol HTFTP, HTNews, HTGopher;
269: #ifdef DIRECT_WAIS
270: GLOBALREF HTProtocol HTWAIS;
1.54 frystyk 271: #endif
1.42 frystyk 272:
1.2 timbl 273: HTRegisterProtocol(&HTFTP);
274: HTRegisterProtocol(&HTNews);
1.54 frystyk 275: #ifdef NEW_CODE
276: HTRegisterProtocol(&HTNNTP);
277: #endif
1.2 timbl 278: HTRegisterProtocol(&HTGopher);
1.42 frystyk 279:
1.3 timbl 280: #ifdef DIRECT_WAIS
281: HTRegisterProtocol(&HTWAIS);
282: #endif
1.1 timbl 283:
1.54 frystyk 284: #endif /* DECNET */
1.2 timbl 285: HTRegisterProtocol(&HTTP);
286: HTRegisterProtocol(&HTFile);
287: HTRegisterProtocol(&HTTelnet);
288: HTRegisterProtocol(&HTTn3270);
289: HTRegisterProtocol(&HTRlogin);
1.1 timbl 290: }
1.61 frystyk 291:
292:
293: /* HTLibInit
294: **
295: ** This function initiates the Library and it MUST be called when
296: ** starting up an application. See also HTLibTerminate()
297: */
298: PUBLIC BOOL HTLibInit NOARGS
299: {
300: if (TRACE)
301: fprintf(stderr, "WWWLibInit.. INITIALIZING LIBRARY OF COMMON CODE\n");
1.63 frystyk 302:
303: #ifndef NO_INIT
1.61 frystyk 304: if (!protocols)
1.62 frystyk 305: HTAccessInit(); /* Initilizing protocol modules */
1.63 frystyk 306: #endif
1.61 frystyk 307:
1.62 frystyk 308: #ifdef WWWLIB_SIG
1.61 frystyk 309: /* On Solaris (and others?) we get a BROKEN PIPE signal when connecting
310: ** to a port where er should get `connection refused'. We ignore this
311: ** using the following function call
312: */
313: HTSetSignal(); /* Set signals in library */
1.1 timbl 314: #endif
315:
1.61 frystyk 316: HTThreadInit(); /* Initialize bit arrays */
317: return YES;
318: }
319:
320:
321: /* HTLibTerminate
322: **
323: ** This function frees memory kept by the Library and should be called
1.63 frystyk 324: ** before exit of an application (if you are on a PC platform)
1.61 frystyk 325: */
326: PUBLIC BOOL HTLibTerminate NOARGS
327: {
328: if (TRACE)
1.63 frystyk 329: fprintf(stderr, "WWWLibTerm.. Cleaning up LIBRARY OF COMMON CODE\n");
330: HTAtom_deleteAll();
331: HTDisposeProtocols();
332: HTDisposeConversions();
333: HTFile_deleteSuffixes();
334: HTTCPCacheRemoveAll();
335: HTFreeHostName();
336: HTFreeMailAddress();
1.61 frystyk 337: return YES;
338: }
339:
340:
1.59 frystyk 341: /* --------------------------------------------------------------------------*/
342: /* Physical Anchor Address Manager */
343: /* --------------------------------------------------------------------------*/
1.33 luotonen 344:
345: /* override_proxy()
346: **
347: ** Check the no_proxy environment variable to get the list
348: ** of hosts for which proxy server is not consulted.
349: **
350: ** no_proxy is a comma- or space-separated list of machine
351: ** or domain names, with optional :port part. If no :port
352: ** part is present, it applies to all ports on that domain.
353: **
354: ** Example:
355: ** no_proxy="cern.ch,some.domain:8001"
356: **
357: */
358: PRIVATE BOOL override_proxy ARGS1(CONST char *, addr)
359: {
360: CONST char * no_proxy = getenv("no_proxy");
361: char * p = NULL;
362: char * host = NULL;
363: int port = 0;
364: int h_len = 0;
365:
366: if (!no_proxy || !addr || !(host = HTParse(addr, "", PARSE_HOST)))
367: return NO;
368: if (!*host) { free(host); return NO; }
369:
1.34 frystyk 370: if ((p = strchr(host, ':')) != NULL) { /* Port specified */
1.33 luotonen 371: *p++ = 0; /* Chop off port */
372: port = atoi(p);
373: }
374: else { /* Use default port */
375: char * access = HTParse(addr, "", PARSE_ACCESS);
376: if (access) {
377: if (!strcmp(access,"http")) port = 80;
378: else if (!strcmp(access,"gopher")) port = 70;
379: else if (!strcmp(access,"ftp")) port = 21;
380: free(access);
381: }
382: }
383: if (!port) port = 80; /* Default */
384: h_len = strlen(host);
385:
386: while (*no_proxy) {
387: CONST char * end;
388: CONST char * colon = NULL;
389: int templ_port = 0;
390: int t_len;
391:
392: while (*no_proxy && (WHITE(*no_proxy) || *no_proxy==','))
393: no_proxy++; /* Skip whitespace and separators */
394:
395: end = no_proxy;
396: while (*end && !WHITE(*end) && *end != ',') { /* Find separator */
397: if (*end==':') colon = end; /* Port number given */
398: end++;
399: }
400:
401: if (colon) {
402: templ_port = atoi(colon+1);
403: t_len = colon - no_proxy;
404: }
405: else {
406: t_len = end - no_proxy;
407: }
408:
409: if ((!templ_port || templ_port == port) &&
410: (t_len > 0 && t_len <= h_len &&
411: !strncmp(host + h_len - t_len, no_proxy, t_len))) {
412: free(host);
413: return YES;
414: }
415: if (*end) no_proxy = end+1;
416: else break;
417: }
418:
419: free(host);
420: return NO;
421: }
422:
423:
424:
1.2 timbl 425: /* Find physical name and access protocol
426: ** --------------------------------------
1.1 timbl 427: **
428: **
429: ** On entry,
430: ** addr must point to the fully qualified hypertext reference.
431: ** anchor a pareent anchor with whose address is addr
432: **
1.59 frystyk 433: ** On exit,
434: ** returns HT_NO_ACCESS no protocol module found
435: ** HT_FORBIDDEN Error has occured.
1.2 timbl 436: ** HT_OK Success
1.1 timbl 437: **
438: */
1.21 luotonen 439: PRIVATE int get_physical ARGS1(HTRequest *, req)
440: {
1.1 timbl 441: char * access=0; /* Name of access method */
1.21 luotonen 442: char * addr = HTAnchor_address((HTAnchor*)req->anchor); /* free me */
1.27 luotonen 443:
1.2 timbl 444: #ifndef NO_RULES
1.47 luotonen 445: if (HTImServer) { /* cern_httpd has already done its own translations */
1.45 luotonen 446: HTAnchor_setPhysical(req->anchor, HTImServer);
1.47 luotonen 447: StrAllocCopy(addr, HTImServer); /* Oops, queries thru many proxies */
448: /* didn't work without this -- AL */
449: }
1.21 luotonen 450: else {
1.27 luotonen 451: char * physical = HTTranslate(addr);
1.21 luotonen 452: if (!physical) {
1.47 luotonen 453: free(addr);
1.21 luotonen 454: return HT_FORBIDDEN;
455: }
456: HTAnchor_setPhysical(req->anchor, physical);
457: free(physical); /* free our copy */
1.2 timbl 458: }
459: #else
1.21 luotonen 460: HTAnchor_setPhysical(req->anchor, addr);
1.2 timbl 461: #endif
462:
1.21 luotonen 463: access = HTParse(HTAnchor_physical(req->anchor),
1.27 luotonen 464: "file:", PARSE_ACCESS);
1.1 timbl 465:
466: /* Check whether gateway access has been set up for this
1.8 timbl 467: **
468: ** This function can be replaced by the rule system above.
1.1 timbl 469: */
1.8 timbl 470: #define USE_GATEWAYS
1.1 timbl 471: #ifdef USE_GATEWAYS
1.39 luotonen 472:
473: /* make sure the using_proxy variable is false */
474: using_proxy = NO;
475:
1.33 luotonen 476: if (!override_proxy(addr)) {
1.27 luotonen 477: char * gateway_parameter, *gateway, *proxy;
478:
1.2 timbl 479: gateway_parameter = (char *)malloc(strlen(access)+20);
480: if (gateway_parameter == NULL) outofmem(__FILE__, "HTLoad");
1.27 luotonen 481:
482: /* search for proxy gateways */
1.2 timbl 483: strcpy(gateway_parameter, "WWW_");
484: strcat(gateway_parameter, access);
485: strcat(gateway_parameter, "_GATEWAY");
486: gateway = (char *)getenv(gateway_parameter); /* coerce for decstation */
1.27 luotonen 487:
488: /* search for proxy servers */
489: strcpy(gateway_parameter, access);
490: strcat(gateway_parameter, "_proxy");
491: proxy = (char *)getenv(gateway_parameter);
492:
1.2 timbl 493: free(gateway_parameter);
1.27 luotonen 494:
495: if (TRACE && gateway)
1.60 frystyk 496: fprintf(stderr,"Gateway..... Found: `%s\'\n", gateway);
1.27 luotonen 497: if (TRACE && proxy)
1.60 frystyk 498: fprintf(stderr,"Proxy....... Found: `%s\'\n", proxy);
1.27 luotonen 499:
1.8 timbl 500: #ifndef DIRECT_WAIS
1.9 timbl 501: if (!gateway && 0==strcmp(access, "wais")) {
1.8 timbl 502: gateway = DEFAULT_WAIS_GATEWAY;
503: }
504: #endif
1.27 luotonen 505:
506: /* proxy servers have precedence over gateway servers */
1.60 frystyk 507: if (proxy && *proxy) {
1.27 luotonen 508: char * gatewayed=0;
509:
510: StrAllocCopy(gatewayed,proxy);
511: StrAllocCat(gatewayed,addr);
512: using_proxy = YES;
513: HTAnchor_setPhysical(req->anchor, gatewayed);
514: free(gatewayed);
515: free(access);
516:
517: access = HTParse(HTAnchor_physical(req->anchor),
518: "http:", PARSE_ACCESS);
1.60 frystyk 519: } else if (gateway && *gateway) {
1.9 timbl 520: char * path = HTParse(addr, "",
521: PARSE_HOST + PARSE_PATH + PARSE_PUNCTUATION);
522: /* Chop leading / off to make host into part of path */
523: char * gatewayed = HTParse(path+1, gateway, PARSE_ALL);
524: free(path);
1.21 luotonen 525: HTAnchor_setPhysical(req->anchor, gatewayed);
1.9 timbl 526: free(gatewayed);
1.2 timbl 527: free(access);
1.9 timbl 528:
1.21 luotonen 529: access = HTParse(HTAnchor_physical(req->anchor),
1.8 timbl 530: "http:", PARSE_ACCESS);
1.2 timbl 531: }
532: }
1.1 timbl 533: #endif
534:
1.19 timbl 535: free(addr);
1.1 timbl 536:
1.61 frystyk 537: /* Search registered protocols to find suitable one */
1.1 timbl 538: {
1.61 frystyk 539: HTList *cur = protocols;
1.20 luotonen 540: HTProtocol *p;
1.61 frystyk 541: if (!cur) {
542: if (TRACE)
543: fprintf(stderr, "HTAccess.... NO PROTOCOL MODULES INITIATED\n");
544: } else {
545: while ((p = (HTProtocol*)HTList_nextObject(cur))) {
546: if (strcmp(p->name, access)==0) {
547: HTAnchor_setProtocol(req->anchor, p);
548: free(access);
549: return (HT_OK);
550: }
1.1 timbl 551: }
552: }
553: }
554: free(access);
1.2 timbl 555: return HT_NO_ACCESS;
1.1 timbl 556: }
557:
1.59 frystyk 558: /* --------------------------------------------------------------------------*/
559: /* Document Poster */
560: /* --------------------------------------------------------------------------*/
561:
562: /* Get a save stream for a document
563: ** --------------------------------
564: */
565: PUBLIC HTStream *HTSaveStream ARGS1(HTRequest *, request)
566: {
567: HTProtocol * p;
568: int status;
569: request->method = METHOD_PUT;
570: status = get_physical(request);
571: if (status == HT_FORBIDDEN) {
572: char *url = HTAnchor_address((HTAnchor *) request->anchor);
573: if (url) {
574: HTUnEscape(url);
575: HTErrorAdd(request, ERR_FATAL, NO, HTERR_FORBIDDEN,
576: (void *) url, (int) strlen(url), "HTLoad");
577: free(url);
578: } else {
579: HTErrorAdd(request, ERR_FATAL, NO, HTERR_FORBIDDEN,
580: NULL, 0, "HTLoad");
581: }
582: return NULL; /* should return error status? */
583: }
584: if (status < 0) return NULL; /* @@ error. Can't resolve or forbidden */
585:
586: p = (HTProtocol *) HTAnchor_protocol(request->anchor);
587: if (!p) return NULL;
588:
589: return (*p->saveStream)(request);
590:
591: }
592:
593:
594: /* --------------------------------------------------------------------------*/
595: /* Document Loader */
596: /* --------------------------------------------------------------------------*/
1.1 timbl 597:
598: /* Load a document
599: ** ---------------
600: **
1.2 timbl 601: ** This is an internal routine, which has an address AND a matching
602: ** anchor. (The public routines are called with one OR the other.)
603: **
604: ** On entry,
1.15 timbl 605: ** request->
1.35 luotonen 606: ** anchor a parent anchor with fully qualified
607: ** hypertext reference as its address set
1.15 timbl 608: ** output_format valid
609: ** output_stream valid on NULL
1.2 timbl 610: **
611: ** On exit,
1.59 frystyk 612: ** returns HT_WOULD_BLOCK An I/O operation would block
613: ** HT_ERROR Error has occured
1.2 timbl 614: ** HT_LOADED Success
615: ** HT_NO_DATA Success, but no document loaded.
1.8 timbl 616: ** (telnet sesssion started etc)
1.2 timbl 617: **
618: */
1.52 frystyk 619: PUBLIC int HTLoad ARGS2(HTRequest *, request, BOOL, keep_error_stack)
1.2 timbl 620: {
1.25 frystyk 621: char *arg = NULL;
622: HTProtocol *p;
623: int status;
624:
1.22 luotonen 625: if (request->method == METHOD_INVALID)
626: request->method = METHOD_GET;
1.52 frystyk 627: if (!keep_error_stack) {
628: HTErrorFree(request);
629: request->error_block = NO;
630: }
631:
1.59 frystyk 632: if ((status = get_physical(request)) < 0) {
633: if (status == HT_FORBIDDEN) {
634: char *url = HTAnchor_address((HTAnchor *) request->anchor);
635: if (url) {
636: HTUnEscape(url);
637: HTErrorAdd(request, ERR_FATAL, NO, HTERR_FORBIDDEN,
638: (void *) url, (int) strlen(url), "HTLoad");
639: free(url);
640: } else {
641: HTErrorAdd(request, ERR_FATAL, NO, HTERR_FORBIDDEN,
642: NULL, 0, "HTLoad");
643: }
644: }
645: return HT_ERROR; /* Can't resolve or forbidden */
1.2 timbl 646: }
1.25 frystyk 647:
648: if(!(arg = HTAnchor_physical(request->anchor)) || !*arg)
1.59 frystyk 649: return HT_ERROR;
1.27 luotonen 650:
1.56 frystyk 651: p = (HTProtocol *) HTAnchor_protocol(request->anchor);
1.17 timbl 652: return (*(p->load))(request);
1.2 timbl 653: }
654:
655:
1.61 frystyk 656: /* Terminate a LOAD
657: ** ----------------
658: **
659: ** This function looks at the status code from the HTLoadDocument
660: ** function and updates logfiles, creates error messages etc.
661: **
662: ** On Entry,
663: ** Status code from load function
664: */
665: PUBLIC BOOL HTLoadTerminate ARGS2(HTRequest *, request, int, status)
666: {
667: char * uri = HTAnchor_address((HTAnchor*)request->anchor);
668:
669: /* Log the access if necessary */
670: if (HTlogfile) {
671: time_t theTime;
672: time(&theTime);
673: fprintf(HTlogfile, "%24.24s %s %s %s\n",
674: ctime(&theTime),
675: HTClientHost ? HTClientHost : "local",
676: status<0 ? "FAIL" : "GET", uri);
677: fflush(HTlogfile); /* Actually update it on disk */
678: if (PROT_TRACE) fprintf(stderr, "Log: %24.24s %s %s %s\n",
679: ctime(&theTime),
680: HTClientHost ? HTClientHost : "local",
681: status<0 ? "FAIL" : "GET", uri);
682: }
683:
684: /* The error stack might contain general information to the client
685: about what has been going on in the library (not only errors) */
686: if (!HTImProxy && request->error_stack)
687: HTErrorMsg(request);
688:
689: switch (status) {
690: case HT_LOADED:
691: if (PROT_TRACE) {
692: fprintf(stderr, "HTAccess.... OK: `%s' has been accessed.\n", uri);
693: }
694: break;
695:
696: case HT_NO_DATA:
697: if (PROT_TRACE) {
698: fprintf(stderr, "HTAccess.... OK BUT NO DATA: `%s'\n", uri);
699: }
700: break;
701:
702: case HT_WOULD_BLOCK:
703: if (PROT_TRACE) {
704: fprintf(stderr, "HTAccess.... WOULD BLOCK: `%s'\n", uri);
705: }
706: break;
707:
708: case HT_ERROR:
709: if (HTImProxy)
710: HTErrorMsg(request); /* Only on a real error */
711: if (PROT_TRACE) {
712: fprintf(stderr, "HTAccess.... ERROR: Can't access `%s'\n", uri);
713: }
714: break;
715:
716: default:
717: if (PROT_TRACE) {
718: fprintf(stderr, "HTAccess.... Internal software error in CERN WWWLib version %s ****\n\nPlease mail www-bug@info.cern.ch quoting what software and what version you are using\nand the URL: %s that caused the problem, thanks!\n",
719: HTLibraryVersion, uri);
720: }
721: break;
722: }
723: free(uri);
724: return YES;
725: }
726:
727:
1.2 timbl 728: /* Load a document - with logging etc
729: ** ----------------------------------
730: **
731: ** - Checks or documents already loaded
732: ** - Logs the access
733: ** - Allows stdin filter option
734: ** - Trace ouput and error messages
735: **
1.1 timbl 736: ** On Entry,
1.19 timbl 737: ** request->anchor valid for of the document to be accessed.
738: ** request->childAnchor optional anchor within doc to be selected
739: **
1.2 timbl 740: ** filter if YES, treat stdin as HTML
1.1 timbl 741: **
1.15 timbl 742: ** request->anchor is the node_anchor for the document
743: ** request->output_format is valid
744: **
1.59 frystyk 745: ** On exit,
746: ** returns HT_WOULD_BLOCK An I/O operation would block
747: ** HT_ERROR Error has occured
748: ** HT_LOADED Success
749: ** HT_NO_DATA Success, but no document loaded.
750: ** (telnet sesssion started etc)
1.1 timbl 751: */
1.59 frystyk 752: PRIVATE int HTLoadDocument ARGS2(HTRequest *, request,
753: BOOL, keep_error_stack)
1.1 timbl 754:
755: {
756: int status;
757: HText * text;
1.19 timbl 758: char * full_address = HTAnchor_address((HTAnchor*)request->anchor);
1.54 frystyk 759:
1.59 frystyk 760: if (PROT_TRACE) fprintf (stderr, "HTAccess.... Loading document %s\n",
761: full_address);
1.1 timbl 762:
1.18 timbl 763: request->using_cache = NULL;
764:
1.15 timbl 765: if (!request->output_format) request->output_format = WWW_PRESENT;
1.25 frystyk 766:
1.63 frystyk 767: /* Check if document is already loaded */
1.31 frystyk 768: if (!HTForceReload && (text=(HText *)HTAnchor_document(request->anchor)))
1.63 frystyk 769: {
1.59 frystyk 770: if (PROT_TRACE)
771: fprintf(stderr, "HTAccess.... Document already in memory.\n");
1.19 timbl 772: if (request->childAnchor) {
773: HText_selectAnchor(text, request->childAnchor);
774: } else {
775: HText_select(text);
776: }
777: free(full_address);
1.59 frystyk 778: return HT_LOADED;
1.1 timbl 779: }
1.17 timbl 780:
1.34 frystyk 781: /* Check the Cache */
1.17 timbl 782: /* Bug: for each format, we only check whether it is ok, we
783: don't check them all and chose the best */
1.54 frystyk 784: if (request->anchor->cacheItems) {
1.17 timbl 785: HTList * list = request->anchor->cacheItems;
1.20 luotonen 786: HTList * cur = list;
787: HTCacheItem * item;
788:
789: while ((item = (HTCacheItem*)HTList_nextObject(cur))) {
1.18 timbl 790: HTStream * s;
791:
792: request->using_cache = item;
793:
1.59 frystyk 794: s = HTStreamStack(item->format, request->output_format,
795: request->output_stream, request, NO);
1.17 timbl 796: if (s) { /* format was suitable */
797: FILE * fp = fopen(item->filename, "r");
1.59 frystyk 798: if (PROT_TRACE)
1.57 howcome 799: fprintf(stderr, "Cache: HIT file %s for %s\n",
1.20 luotonen 800: item->filename,
801: full_address);
1.17 timbl 802: if (fp) {
803: HTFileCopy(fp, s);
1.53 duns 804: (*s->isa->_free)(s); /* close up pipeline */
1.17 timbl 805: fclose(fp);
1.19 timbl 806: free(full_address);
1.59 frystyk 807: return HT_LOADED;
1.17 timbl 808: } else {
809: fprintf(stderr, "***** Can't read cache file %s !\n",
1.20 luotonen 810: item->filename);
1.17 timbl 811: } /* file open ok */
812: } /* stream ok */
813: } /* next cache item */
814: } /* if cache available for this anchor */
1.1 timbl 815:
1.61 frystyk 816: if ((status = HTLoad(request, keep_error_stack)) != HT_WOULD_BLOCK)
817: HTLoadTerminate(request, status);
1.19 timbl 818: free(full_address);
1.59 frystyk 819: return status;
1.58 frystyk 820: }
1.1 timbl 821:
822:
823: /* Load a document from absolute name
824: ** ---------------
825: **
1.59 frystyk 826: ** On Entry,
1.1 timbl 827: ** addr The absolute address of the document to be accessed.
828: ** filter if YES, treat document as HTML
829: **
1.59 frystyk 830: ** On exit,
831: ** returns HT_WOULD_BLOCK An I/O operation would block
832: ** HT_ERROR Error has occured
833: ** HT_LOADED Success
834: ** HT_NO_DATA Success, but no document loaded.
835: ** (telnet sesssion started etc)
1.1 timbl 836: */
837:
1.59 frystyk 838: PUBLIC int HTLoadAbsolute ARGS2(CONST char *,addr, HTRequest*, request)
1.2 timbl 839: {
1.19 timbl 840: HTAnchor * anchor = HTAnchor_findAddress(addr);
841: request->anchor = HTAnchor_parent(anchor);
842: request->childAnchor = ((HTAnchor*)request->anchor == anchor) ?
843: NULL : (HTChildAnchor*) anchor;
1.52 frystyk 844: return HTLoadDocument(request, NO);
1.2 timbl 845: }
846:
847:
848: /* Load a document from absolute name to stream
849: ** --------------------------------------------
850: **
1.59 frystyk 851: ** On Entry,
1.2 timbl 852: ** addr The absolute address of the document to be accessed.
1.15 timbl 853: ** request->output_stream if non-NULL, send data down this stream
1.2 timbl 854: **
1.59 frystyk 855: ** On exit,
856: ** returns HT_WOULD_BLOCK An I/O operation would block
857: ** HT_ERROR Error has occured
858: ** HT_LOADED Success
859: ** HT_NO_DATA Success, but no document loaded.
860: ** (telnet sesssion started etc)
1.2 timbl 861: */
862:
1.59 frystyk 863: PUBLIC int HTLoadToStream ARGS3(CONST char *, addr,
864: BOOL, filter,
865: HTRequest*, request)
1.1 timbl 866: {
1.63 frystyk 867: HTAnchor * anchor = HTAnchor_findAddress(addr);
868: request->anchor = HTAnchor_parent(anchor);
869: request->childAnchor = ((HTAnchor*)request->anchor == anchor) ? NULL :
1.19 timbl 870: (HTChildAnchor*) anchor;
1.15 timbl 871: request->output_stream = request->output_stream;
1.52 frystyk 872: return HTLoadDocument(request, NO);
1.1 timbl 873: }
874:
875:
876: /* Load a document from relative name
877: ** ---------------
878: **
1.59 frystyk 879: ** On Entry,
1.2 timbl 880: ** relative_name The relative address of the document
881: ** to be accessed.
1.1 timbl 882: **
1.59 frystyk 883: ** On exit,
884: ** returns HT_WOULD_BLOCK An I/O operation would block
885: ** HT_ERROR Error has occured
886: ** HT_LOADED Success
887: ** HT_NO_DATA Success, but no document loaded.
888: ** (telnet sesssion started etc)
1.1 timbl 889: */
890:
1.59 frystyk 891: PUBLIC int HTLoadRelative ARGS3(CONST char *, relative_name,
892: HTParentAnchor *, here,
893: HTRequest *, request)
1.1 timbl 894: {
895: char * full_address = 0;
896: BOOL result;
897: char * mycopy = 0;
898: char * stripped = 0;
899: char * current_address =
1.2 timbl 900: HTAnchor_address((HTAnchor*)here);
1.1 timbl 901:
902: StrAllocCopy(mycopy, relative_name);
903:
904: stripped = HTStrip(mycopy);
905: full_address = HTParse(stripped,
906: current_address,
907: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.15 timbl 908: result = HTLoadAbsolute(full_address, request);
1.1 timbl 909: free(full_address);
910: free(current_address);
911: free(mycopy); /* Memory leak fixed 10/7/92 -- JFG */
912: return result;
913: }
914:
915:
916: /* Load if necessary, and select an anchor
917: ** --------------------------------------
918: **
1.59 frystyk 919: ** On Entry,
1.1 timbl 920: ** destination The child or parenet anchor to be loaded.
921: **
1.59 frystyk 922: ** On exit,
923: ** returns HT_WOULD_BLOCK An I/O operation would block
924: ** HT_ERROR Error has occured
925: ** HT_LOADED Success
926: ** HT_NO_DATA Success, but no document loaded.
927: ** (telnet sesssion started etc)
1.1 timbl 928: */
929:
1.59 frystyk 930: PUBLIC int HTLoadAnchor ARGS2(HTAnchor*, anchor, HTRequest *, request)
1.1 timbl 931: {
1.59 frystyk 932: if (!anchor) return HT_ERROR; /* No link */
1.1 timbl 933:
1.15 timbl 934: request->anchor = HTAnchor_parent(anchor);
1.59 frystyk 935: request->childAnchor = ((HTAnchor *) request->anchor == anchor) ?
936: NULL : (HTChildAnchor*) anchor;
937: return HTLoadDocument(request, NO);
938: }
1.52 frystyk 939:
940:
941: /* Load if necessary, and select an anchor
942: ** --------------------------------------
943: **
944: ** This function is almost identical to HTLoadAnchor, but it doesn't
945: ** clear the error stack so that the information in there is kept.
946: **
1.59 frystyk 947: ** On Entry,
1.52 frystyk 948: ** destination The child or parenet anchor to be loaded.
949: **
1.59 frystyk 950: ** On exit,
951: ** returns HT_WOULD_BLOCK An I/O operation would block
952: ** HT_ERROR Error has occured
953: ** HT_LOADED Success
954: ** HT_NO_DATA Success, but no document loaded.
955: ** (telnet sesssion started etc)
1.52 frystyk 956: */
957:
1.59 frystyk 958: PUBLIC int HTLoadAnchorRecursive ARGS2(HTAnchor*, anchor,
959: HTRequest *, request)
1.52 frystyk 960: {
1.59 frystyk 961: if (!anchor) return HT_ERROR; /* No link */
1.52 frystyk 962:
963: request->anchor = HTAnchor_parent(anchor);
1.59 frystyk 964: request->childAnchor = ((HTAnchor *) request->anchor == anchor) ?
965: NULL : (HTChildAnchor*) anchor;
1.52 frystyk 966:
1.59 frystyk 967: return HTLoadDocument(request, YES);
968: }
1.1 timbl 969:
970:
971: /* Search
972: ** ------
973: ** Performs a keyword search on word given by the user. Adds the keyword to
974: ** the end of the current address and attempts to open the new address.
975: **
976: ** On Entry,
977: ** *keywords space-separated keyword list or similar search list
1.2 timbl 978: ** here is anchor search is to be done on.
1.59 frystyk 979: **
980: ** On exit,
981: ** returns HT_WOULD_BLOCK An I/O operation would block
982: ** HT_ERROR Error has occured
983: ** HT_LOADED Success
984: ** HT_NO_DATA Success, but no document loaded.
985: ** (telnet sesssion started etc)
1.1 timbl 986: */
987:
1.56 frystyk 988: PRIVATE char hex ARGS1(int, i)
1.2 timbl 989: {
1.13 timbl 990: char * hexchars = "0123456789ABCDEF";
991: return hexchars[i];
1.2 timbl 992: }
1.1 timbl 993:
1.59 frystyk 994: PUBLIC int HTSearch ARGS3(CONST char *, keywords,
995: HTParentAnchor *, here,
996: HTRequest *, request)
1.1 timbl 997: {
1.2 timbl 998:
999: #define acceptable \
1000: "1234567890abcdefghijlkmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.-_"
1001:
1002: char *q, *u;
1003: CONST char * p, *s, *e; /* Pointers into keywords */
1004: char * address = HTAnchor_address((HTAnchor*)here);
1.1 timbl 1005: BOOL result;
1.56 frystyk 1006: char * escaped = (char *) malloc(strlen(keywords)*3+1);
1.2 timbl 1007:
1.29 frystyk 1008: /* static CONST BOOL isAcceptable[96] = */
1009: /* static AND const is not good for a gnu compiler! Frystyk 25/02-94 */
1.30 luotonen 1010: static BOOL isAcceptable[96] =
1.2 timbl 1011: /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
1012: { 0,0,0,0,0,0,0,0,0,0,1,0,0,1,1,0, /* 2x !"#$%&'()*+,-./ */
1013: 1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0, /* 3x 0123456789:;<=>? */
1014: 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4x @ABCDEFGHIJKLMNO */
1015: 1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,1, /* 5X PQRSTUVWXYZ[\]^_ */
1016: 0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 6x `abcdefghijklmno */
1017: 1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0 }; /* 7X pqrstuvwxyz{\}~ DEL */
1018:
1019: if (escaped == NULL) outofmem(__FILE__, "HTSearch");
1020:
1.29 frystyk 1021: /* Convert spaces to + and hex escape unacceptable characters */
1.2 timbl 1022:
1.29 frystyk 1023: for(s=keywords; *s && WHITE(*s); s++); /*scan */ /* Skip white space */
1024: for(e = s + strlen(s); e>s && WHITE(*(e-1)) ; e--); /* Skip trailers */
1025: for(q=escaped, p=s; p<e; p++) { /* scan stripped field */
1.2 timbl 1026: int c = (int)TOASCII(*p);
1027: if (WHITE(*p)) {
1028: *q++ = '+';
1.29 frystyk 1029: } else if (c>=32 && c<=127 && isAcceptable[c-32] != 0) {
1.13 timbl 1030: *q++ = *p; /* 930706 TBL for MVS bug */
1.2 timbl 1031: } else {
1032: *q++ = '%';
1033: *q++ = hex(c / 16);
1034: *q++ = hex(c % 16);
1035: }
1036: } /* Loop over string */
1.1 timbl 1037:
1.2 timbl 1038: *q=0;
1039: /* terminate escaped sctring */
1040: u=strchr(address, '?'); /* Find old search string */
1041: if (u) *u = 0; /* Chop old search off */
1.1 timbl 1042:
1043: StrAllocCat(address, "?");
1.2 timbl 1044: StrAllocCat(address, escaped);
1045: free(escaped);
1.15 timbl 1046: result = HTLoadRelative(address, here, request);
1.1 timbl 1047: free(address);
1.2 timbl 1048:
1.1 timbl 1049: return result;
1.2 timbl 1050: }
1051:
1052:
1053: /* Search Given Indexname
1054: ** ------
1055: ** Performs a keyword search on word given by the user. Adds the keyword to
1056: ** the end of the current address and attempts to open the new address.
1057: **
1.59 frystyk 1058: ** On Entry,
1.2 timbl 1059: ** *keywords space-separated keyword list or similar search list
1060: ** *addres is name of object search is to be done on.
1.59 frystyk 1061: ** On exit,
1062: ** returns HT_WOULD_BLOCK An I/O operation would block
1063: ** HT_ERROR Error has occured
1064: ** HT_LOADED Success
1065: ** HT_NO_DATA Success, but no document loaded.
1066: ** (telnet sesssion started etc)
1.2 timbl 1067: */
1068:
1.59 frystyk 1069: PUBLIC int HTSearchAbsolute ARGS3(CONST char *, keywords,
1070: CONST char *, indexname,
1071: HTRequest *, request)
1.2 timbl 1072: {
1073: HTParentAnchor * anchor =
1074: (HTParentAnchor*) HTAnchor_findAddress(indexname);
1.15 timbl 1075: return HTSearch(keywords, anchor, request);
1.57 howcome 1076: }
1077:
1078:
1079: /*
1080: ** Find Related Name
1081: **
1082: ** Creates a string that can be used as a related name when
1083: ** calling HTParse initially.
1084: **
1085: ** The code for this routine originates from the Linemode
1086: ** browser and was moved here by howcome@dxcern.cern.ch
1087: ** in order for all clients to take advantage.
1088: **
1.59 frystyk 1089: ** The string returned must be freed by the caller
1.57 howcome 1090: */
1091: PUBLIC char * HTFindRelatedName NOARGS
1092: {
1.59 frystyk 1093: char* default_default = NULL; /* Parse home relative to this */
1094: CONST char *host = HTGetHostName();
1.57 howcome 1095: StrAllocCopy(default_default, "file://");
1.59 frystyk 1096: if (host)
1097: StrAllocCat(default_default, host);
1098: else
1099: StrAllocCat(default_default, "localhost");
1100: {
1101: char wd[HT_MAX_PATH+1];
1.57 howcome 1102:
1.59 frystyk 1103: #ifdef NO_GETWD
1104: #ifdef HAS_GETCWD /* System V variant SIGN CHANGED TBL 921006 !! */
1105: char *result = (char *) getcwd(wd, sizeof(wd));
1106: #else
1107: char *result = NULL;
1108: HTAlert("This platform does not support neither getwd nor getcwd\n");
1.57 howcome 1109: #endif
1.59 frystyk 1110: #else
1111: char *result = (char *) getwd(wd);
1112: #endif
1113: *(wd+HT_MAX_PATH) = '\0';
1.57 howcome 1114: if (result) {
1115: #ifdef VMS
1116: /* convert directory name to Unix-style syntax */
1117: char * disk = strchr (wd, ':');
1118: char * dir = strchr (wd, '[');
1119: if (disk) {
1120: *disk = '\0';
1121: StrAllocCat (default_default, "/"); /* needs delimiter */
1122: StrAllocCat (default_default, wd);
1123: }
1124: if (dir) {
1125: char *p;
1126: *dir = '/'; /* Convert leading '[' */
1127: for (p = dir ; *p != ']'; ++p)
1128: if (*p == '.') *p = '/';
1129: *p = '\0'; /* Cut on final ']' */
1130: StrAllocCat (default_default, dir);
1131: }
1132: #else /* not VMS */
1133: StrAllocCat (default_default, wd);
1.59 frystyk 1134: #endif /* not VMS */
1.57 howcome 1135: }
1.59 frystyk 1136: }
1.57 howcome 1137: StrAllocCat(default_default, "/default.html");
1138: return default_default;
1.2 timbl 1139: }
1140:
1141:
1142: /* Generate the anchor for the home page
1143: ** -------------------------------------
1144: **
1145: ** As it involves file access, this should only be done once
1146: ** when the program first runs.
1.10 timbl 1147: ** This is a default algorithm -- browser don't HAVE to use this.
1148: ** But consistency betwen browsers is STRONGLY recommended!
1.2 timbl 1149: **
1.10 timbl 1150: ** Priority order is:
1151: **
1152: ** 1 WWW_HOME environment variable (logical name, etc)
1153: ** 2 ~/WWW/default.html
1154: ** 3 /usr/local/bin/default.html
1155: ** 4 http://info.cern.ch/default.html
1156: **
1.2 timbl 1157: */
1158: PUBLIC HTParentAnchor * HTHomeAnchor NOARGS
1159: {
1.12 timbl 1160: char * my_home_document = NULL;
1161: char * home = (char *)getenv(LOGICAL_DEFAULT);
1.2 timbl 1162: char * ref;
1163: HTParentAnchor * anchor;
1.1 timbl 1164:
1.12 timbl 1165: if (home) {
1166: StrAllocCopy(my_home_document, home);
1167:
1168: /* Someone telnets in, they get a special home.
1169: */
1170: } else if (HTClientHost) { /* Telnet server */
1171: FILE * fp = fopen(REMOTE_POINTER, "r");
1172: char * status;
1173: if (fp) {
1.59 frystyk 1174: my_home_document = (char*) malloc(HT_MAX_PATH);
1175: status = fgets(my_home_document, HT_MAX_PATH, fp);
1.12 timbl 1176: if (!status) {
1177: free(my_home_document);
1178: my_home_document = NULL;
1179: }
1180: fclose(fp);
1181: }
1182: if (!my_home_document) StrAllocCopy(my_home_document, REMOTE_ADDRESS);
1183: }
1184:
1185:
1186:
1.2 timbl 1187: #ifdef unix
1.12 timbl 1188:
1.10 timbl 1189: if (!my_home_document) {
1190: FILE * fp = NULL;
1191: CONST char * home = (CONST char*)getenv("HOME");
1192: if (home) {
1193: my_home_document = (char *)malloc(
1194: strlen(home)+1+ strlen(PERSONAL_DEFAULT)+1);
1195: if (my_home_document == NULL) outofmem(__FILE__, "HTLocalName");
1196: sprintf(my_home_document, "%s/%s", home, PERSONAL_DEFAULT);
1197: fp = fopen(my_home_document, "r");
1198: }
1199:
1200: if (!fp) {
1201: StrAllocCopy(my_home_document, LOCAL_DEFAULT_FILE);
1202: fp = fopen(my_home_document, "r");
1203: }
1.2 timbl 1204: if (fp) {
1205: fclose(fp);
1206: } else {
1.62 frystyk 1207: if (TRACE)
1208: fprintf(stderr,
1209: "HTBrowse: No local home document ~/%s or %s\n",
1210: PERSONAL_DEFAULT, LOCAL_DEFAULT_FILE);
1.11 timbl 1211: free(my_home_document);
1212: my_home_document = NULL;
1.2 timbl 1213: }
1214: }
1215: #endif
1.10 timbl 1216: ref = HTParse( my_home_document ? my_home_document :
1217: HTClientHost ? REMOTE_ADDRESS
1218: : LAST_RESORT,
1219: "file:",
1.2 timbl 1220: PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
1.10 timbl 1221: if (my_home_document) {
1.62 frystyk 1222: if (TRACE)
1223: fprintf(stderr,
1224: "HTAccess.... `%s\' used for custom home page as\n`%s\'\n",
1225: my_home_document, ref);
1.10 timbl 1226: free(my_home_document);
1.2 timbl 1227: }
1228: anchor = (HTParentAnchor*) HTAnchor_findAddress(ref);
1229: free(ref);
1230: return anchor;
1.1 timbl 1231: }
1.26 frystyk 1232:
1233:
1234: /* Bind an Anchor to the request structure
1235: ** ---------------------------------------
1236: **
1237: ** On Entry,
1238: ** anchor The child or parenet anchor to be binded
1239: ** request The request sturcture
1240: ** On Exit,
1241: ** returns YES Success
1242: ** NO Failure
1243: **
1244: ** Note: Actually the same as HTLoadAnchor() but DOES NOT do the loading
1245: ** Henrik Frystyk 17/02-94
1246: */
1247:
1248: PUBLIC BOOL HTBindAnchor ARGS2(HTAnchor*, anchor, HTRequest *, request)
1249: {
1250: if (!anchor) return NO; /* No link */
1251:
1252: request->anchor = HTAnchor_parent(anchor);
1253: request->childAnchor = ((HTAnchor*)request->anchor == anchor) ? NULL
1254: : (HTChildAnchor*) anchor;
1255:
1.29 frystyk 1256: return YES;
1.26 frystyk 1257: } /* HTBindAnchor */
1.59 frystyk 1258:
1.26 frystyk 1259:
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