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source: trunk/gsdl/src/recpt/documentaction.cpp@ 11158

Last change on this file since 11158 was 11158, checked in by jrm21, 18 years ago
for setting _imagethispage_, first look for _titleimage$META_. This is only set by the nav_ns4.dm macro file. If that macro isn't found, we fall back to _label$META_, and then just $META.
Property svn:executable set to ``* Property svn:keywords set to `Author Date Id Revision`
File size: 45.0 KB

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1	/**********************************************************************
2	*
3	* documentaction.cpp --
4	* Copyright (C) 1999 The New Zealand Digital Library Project
5	*
6	* A component of the Greenstone digital library software
7	* from the New Zealand Digital Library Project at the
8	* University of Waikato, New Zealand.
9	*
10	* This program is free software; you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation; either version 2 of the License, or
13	* (at your option) any later version.
14	*
15	* This program is distributed in the hope that it will be useful,
16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18	* GNU General Public License for more details.
19	*
20	* You should have received a copy of the GNU General Public License
21	* along with this program; if not, write to the Free Software
22	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23	*
24	*********************************************************************/
25
26	#include <string.h>
27
28	#include "documentaction.h"
29	#include "browsetools.h"
30	#include "OIDtools.h"
31	#include "querytools.h"
32	#include "unitool.h"
33	#include "gsdltools.h"
34	#include "highlighttext.h"
35
36	documentaction::documentaction () {
37	recpt = NULL;
38
39
40	// this action uses cgi variables "a", "d", "cl",
41	// "x", "gc", "gt", "gp", and "hl"
42	cgiarginfo arg_ainfo;
43	arg_ainfo.shortname = "a";
44	arg_ainfo.longname = "action";
45	arg_ainfo.multiplechar = true;
46	arg_ainfo.defaultstatus = cgiarginfo::weak;
47	arg_ainfo.argdefault = "p";
48	arg_ainfo.savedarginfo = cgiarginfo::must;
49	argsinfo.addarginfo (NULL, arg_ainfo);
50
51	arg_ainfo.shortname = "d";
52	arg_ainfo.longname = "document OID";
53	arg_ainfo.multiplechar = true;
54	arg_ainfo.defaultstatus = cgiarginfo::none;
55	arg_ainfo.argdefault = g_EmptyText;
56	arg_ainfo.savedarginfo = cgiarginfo::can;
57	argsinfo.addarginfo (NULL, arg_ainfo);
58
59	// whether or not a document should be retrieved from the
60	// library or the Web.
61	arg_ainfo.shortname = "il";
62	arg_ainfo.longname = "internal link preference";
63	arg_ainfo.multiplechar = false;
64	arg_ainfo.defaultstatus = cgiarginfo::weak;
65	arg_ainfo.argdefault = "l";
66	arg_ainfo.savedarginfo = cgiarginfo::must;
67	argsinfo.addarginfo (NULL, arg_ainfo);
68
69	arg_ainfo.shortname = "cl";
70	arg_ainfo.longname = "classification OID";
71	arg_ainfo.multiplechar = true;
72	arg_ainfo.defaultstatus = cgiarginfo::none;
73	arg_ainfo.argdefault = g_EmptyText;
74	arg_ainfo.savedarginfo = cgiarginfo::can;
75	argsinfo.addarginfo (NULL, arg_ainfo);
76
77	// in this action "gc" controls the expand/contract
78	// contents function
79	arg_ainfo.shortname = "gc";
80	arg_ainfo.longname = "expand contents";
81	arg_ainfo.multiplechar = false;
82	arg_ainfo.defaultstatus = cgiarginfo::weak;
83	arg_ainfo.argdefault = "0";
84	arg_ainfo.savedarginfo = cgiarginfo::can;
85	argsinfo.addarginfo (NULL, arg_ainfo);
86
87	// in this action "gt" controls the expand/contract
88	// text function 0 = not expanded, 1 = expand unless
89	// there are more than 10 sections containing text,
90	// 2 = expand all
91	arg_ainfo.shortname = "gt";
92	arg_ainfo.longname = "expand text";
93	arg_ainfo.multiplechar = false;
94	arg_ainfo.defaultstatus = cgiarginfo::weak;
95	arg_ainfo.argdefault = "0";
96	arg_ainfo.savedarginfo = cgiarginfo::can;
97	argsinfo.addarginfo (NULL, arg_ainfo);
98
99	// in this action "gp" is the "go to page" control
100	// used by the Book type of toc
101	arg_ainfo.shortname = "gp";
102	arg_ainfo.longname = "go to page";
103	arg_ainfo.multiplechar = true;
104	arg_ainfo.defaultstatus = cgiarginfo::none;
105	arg_ainfo.argdefault = g_EmptyText;
106	arg_ainfo.savedarginfo = cgiarginfo::mustnot;
107	argsinfo.addarginfo (NULL, arg_ainfo);
108
109	// in this action "hl" is the "highlighting on/
110	// highlighting off control ("hl" == "2" is a
111	// special case that forces phrase highlighting
112	// to be used even if the query string doesn't
113	// appear to be a phrase)
114	arg_ainfo.shortname = "hl";
115	arg_ainfo.longname = "highlighting on/off";
116	arg_ainfo.multiplechar = false;
117	arg_ainfo.defaultstatus = cgiarginfo::weak;
118	arg_ainfo.argdefault = "1";
119	arg_ainfo.savedarginfo = cgiarginfo::must;
120	argsinfo.addarginfo (NULL, arg_ainfo);
121
122	// "x" is 0 normally or 1 if page
123	// has been "detached"
124	arg_ainfo.shortname = "x";
125	arg_ainfo.longname = "detached page";
126	arg_ainfo.multiplechar = false;
127	arg_ainfo.defaultstatus = cgiarginfo::weak;
128	arg_ainfo.argdefault = "0";
129	arg_ainfo.savedarginfo = cgiarginfo::must;
130	argsinfo.addarginfo (NULL, arg_ainfo);
131
132	// "xx" is 0 normally or 1 if documents should be detached by default
133	arg_ainfo.shortname = "xx";
134	arg_ainfo.longname = "detach all doc pages";
135	arg_ainfo.multiplechar = false;
136	arg_ainfo.defaultstatus = cgiarginfo::weak;
137	arg_ainfo.argdefault = "0";
138	arg_ainfo.savedarginfo = cgiarginfo::must;
139	argsinfo.addarginfo (NULL, arg_ainfo);
140
141
142	// f arg is set to 1 if document is to
143	// be displayed in a frame
144	arg_ainfo.shortname = "f";
145	arg_ainfo.longname = "frame";
146	arg_ainfo.multiplechar = false;
147	arg_ainfo.defaultstatus = cgiarginfo::weak;
148	arg_ainfo.argdefault = "0";
149	arg_ainfo.savedarginfo = cgiarginfo::mustnot;
150	argsinfo.addarginfo (NULL, arg_ainfo);
151
152	// fc arg is "1" if search bar is to be included (i.e. if "fc" == 1
153	// the httpdocument macro will include "&f=1"
154	arg_ainfo.shortname = "fc";
155	arg_ainfo.longname = "include search bar";
156	arg_ainfo.multiplechar = false;
157	arg_ainfo.defaultstatus = cgiarginfo::weak;
158	arg_ainfo.argdefault = "1";
159	arg_ainfo.savedarginfo = cgiarginfo::must;
160	argsinfo.addarginfo (NULL, arg_ainfo);
161
162	//rd is whether a document will be displayed
163	//with a relevant document list
164	arg_ainfo.shortname = "rd";
165	arg_ainfo.longname = "include relevant documents";
166	arg_ainfo.multiplechar = false;
167	arg_ainfo.defaultstatus = cgiarginfo::weak;
168	arg_ainfo.argdefault = "0";
169	arg_ainfo.savedarginfo = cgiarginfo::must;
170	argsinfo.addarginfo (NULL, arg_ainfo);
171
172	//dm is the metadata that has been used for the datelist
173	arg_ainfo.shortname = "dm";
174	arg_ainfo.longname = "date metadata";
175	arg_ainfo.multiplechar = true;
176	arg_ainfo.defaultstatus = cgiarginfo::weak;
177	arg_ainfo.argdefault = g_EmptyText;
178	arg_ainfo.savedarginfo = cgiarginfo::must;
179	argsinfo.addarginfo (NULL, arg_ainfo);
180
181	}
182
183	documentaction::~documentaction () {
184	}
185
186	bool documentaction::check_cgiargs (cgiargsinfoclass &argsinfo, cgiargsclass &args,
187	recptprotolistclass *protos, ostream &logout) {
188
189	if(!args["d"].empty())
190	{
191	text_t docTop;
192	get_top(args["d"],docTop);
193
194	recptproto* collectproto = protos->getrecptproto (args["c"], logout);
195	if (collectproto != NULL)
196	{
197	ColInfoResponse_t *cinfo = recpt->get_collectinfo_ptr (collectproto, args["c"], logout);
198
199	if(cinfo->authenticate == "document")
200	{
201	// both are either commented out or uncomment and are empty
202	if (cinfo->public_documents.empty() && cinfo->private_documents.empty())
203	{
204	//deny everything
205	args["uan"] = "1";
206	args["ug"] = cinfo->auth_group;
207	}
208
209	// both public_documents and private_documents are turned on !
210	else if (!cinfo->public_documents.empty() && !cinfo->private_documents.empty())
211	{
212	//deny everything
213	args["uan"] = "1";
214	args["ug"] = cinfo->auth_group;
215	}
216
217	// if public_documents is set but this document isn't
218	// listed in it we need to authenticate
219	else if ((!cinfo->public_documents.empty()) &&
220	(cinfo->public_documents.find(docTop) == cinfo->public_documents.end()))
221	{
222	args["uan"] = "1";
223	args["ug"] = cinfo->auth_group;
224	}
225
226	// if private_documents is set and this document is
227	// listed in it we need to authenticate
228	else if ((!cinfo->private_documents.empty()) &&
229	(cinfo->private_documents.find(docTop) != cinfo->private_documents.end()))
230	{
231	args["uan"] = "1";
232	args["ug"] = cinfo->auth_group;
233	}
234
235	}
236	}
237	}
238	// check gc argument
239	int arg_gc = args.getintarg("gc");
240	if (arg_gc < 0 \|\| arg_gc > 2) {
241	logout << "Warning: \"gc\" argument out of range (" << arg_gc << ")\n";
242	cgiarginfo *gcinfo = argsinfo.getarginfo ("gc");
243	if (gcinfo != NULL) args["gc"] = gcinfo->argdefault;
244	}
245
246	// check gt argument (may be either 0, 1 or 2)
247	int arg_gt = args.getintarg("gt");
248	if (arg_gt != 0 && arg_gt != 1 && arg_gt != 2) {
249	logout << "Warning: \"gt\" argument out of range (" << arg_gt << ")\n";
250	cgiarginfo *gtinfo = argsinfo.getarginfo ("gt");
251	if (gtinfo != NULL) args["gt"] = gtinfo->argdefault;
252	}
253
254	// check hl argument
255	int arg_hl = args.getintarg("hl");
256	if (arg_hl < 0 \|\| arg_hl > 2) {
257	logout << "Warning: \"hl\" argument out of range (" << arg_hl << ")\n";
258	cgiarginfo *hlinfo = argsinfo.getarginfo ("hl");
259	if (hlinfo != NULL) args["hl"] = hlinfo->argdefault;
260	}
261
262	// check x argument
263	int arg_x = args.getintarg("x");
264	if (arg_x != 0 && arg_x != 1) {
265	logout << "Warning: \"x\" argument out of range (" << arg_x << ")\n";
266	cgiarginfo *xinfo = argsinfo.getarginfo ("x");
267	if (xinfo != NULL) args["x"] = xinfo->argdefault;
268	}
269
270	//checks whether rd arg is valid
271	int arg_rd = args.getintarg("rd");
272	if (arg_rd != 0 && arg_rd != 1) {
273	logout << "Warning: \"rd\" argument out of range (" << arg_rd << ")\n";
274	cgiarginfo *rdinfo = argsinfo.getarginfo ("rd");
275	if (rdinfo != NULL) args["rd"] = rdinfo->argdefault;
276	}
277
278
279	return true;
280	}
281
282	void documentaction::get_cgihead_info (cgiargsclass &args, recptprotolistclass *protos,
283	response_t &response,text_t &response_data,
284	ostream &logout) {
285
286	if ((args["il"] == "w") && (!args["d"].empty())) {
287
288	recptproto* collectproto = protos->getrecptproto (args["c"], logout);
289	if (collectproto != NULL) {
290
291	text_tset metadata;
292	FilterResponse_t filt_response;
293	text_t top;
294
295	metadata.insert ("URL");
296
297	// get metadata for parent document
298	get_top (args["d"], top);
299	if (get_info (top, args["c"], args["l"], metadata, false, collectproto, filt_response, logout)) {
300	text_t url = filt_response.docInfo[0].metadata["URL"].values[0];
301
302	response = location;
303	response_data = url;
304	return;
305	} else {
306	// error, no URL
307	logout << "Error: documentaction::get_cgihead_info failed on get_info" << endl;
308	}
309	}
310	}
311	response = content;
312	response_data = "text/html";
313	}
314
315	// set_widthtspace calculates how wide the spaces in the nav bar should
316	// be and sets the appropriate macro
317	void documentaction::set_spacemacro (displayclass &disp, FilterResponse_t &response,
318	bool has_search_button) {
319
320	text_t width;
321	int twidth, swidth, iwidth = 0;
322
323	int numc = response.docInfo.size();
324	ResultDocInfo_tarray::iterator dochere = response.docInfo.begin();
325	ResultDocInfo_tarray::iterator docend = response.docInfo.end();
326
327	disp.expandstring (displayclass::defaultpackage, "_pagewidth_", width);
328	twidth = width.getint();
329
330	if (has_search_button) {
331	disp.expandstring ("query", "_searchwidth_", width);
332	iwidth += width.getint();
333	} else {
334	numc -= 1;
335	}
336
337	while (dochere != docend) {
338	const text_t &title = (*dochere).metadata["Title"].values[0];
339
340	disp.expandstring ("document", "_" + title + "width_", width);
341	if (width == ("_" + title + "width_")) {
342	disp.expandstring ("document", "_defaultwidth_", width);
343	}
344	iwidth += width.getint();
345	++dochere;
346	}
347
348	if ((twidth - iwidth) < numc) swidth = 2;
349	else {
350	swidth = twidth - iwidth;
351	if (numc > 0) swidth = swidth / numc;
352	}
353	disp.setmacro ("widthtspace", displayclass::defaultpackage, swidth);
354	}
355
356	// set_navbarmacros sets _navigationbar_ and _httpbrowseXXX_ macros
357	// reponse contains 1 metadata field (Title)
358	void documentaction::set_navbarmacros (displayclass &disp, FilterResponse_t &response,
359	bool has_search_button, cgiargsclass &args,
360	ColInfoResponse_t &cinfo) {
361
362
363	bool use_pulldown = false;
364	text_tmap::iterator it = cinfo.format.find("NavigationBar");
365	if (it != cinfo.format.end()) {
366	if (it->second == "pulldown") {
367	use_pulldown = true;
368	}
369	}
370
371	text_t topparent;
372	text_t &arg_d = args["d"];
373	text_t navigationbar = "<!-- Navigation Bar -->\n";
374
375	text_t date_extra = g_EmptyText;
376	get_top (args["cl"], topparent);
377	int numc = response.docInfo.size();
378	ResultDocInfo_tarray::iterator dochere = response.docInfo.begin();
379	ResultDocInfo_tarray::iterator docend = response.docInfo.end();
380
381	if (!use_pulldown) {
382	navigationbar += "_navtabsearch_";
383	if (has_search_button) {
384	if (args["a"] == "q") {
385	navigationbar += "(selected)";
386	}
387	}
388
389	if (has_search_button \|\| numc == 0) navigationbar += "_navbarspacer_";
390
391	bool first = true;
392	while (dochere != docend) {
393	date_extra = g_EmptyText;
394	if (!first) navigationbar += "_navbarspacer_";
395
396	text_t title = (*dochere).metadata["Title"].values[0];
397	if (title == "Date") { // a date list
398	text_t date_meta = (*dochere).metadata["mdtype"].values[0];
399	if (date_meta == g_EmptyText) {
400	date_meta = "Date";
401	}
402	date_extra = "&dm="+date_meta;
403	}
404	bool unknown = false;
405
406	// test if the _tabtext$FIELD_ macro is defined, which means
407	// this is a "known" metadata type and we have a translation for it
408	text_t tmpwidth;
409	text_t macroname="_tabtext" + title + "_";
410	disp.expandstring ("document", macroname, tmpwidth);
411	if (tmpwidth == macroname) // it wasn't expanded
412	unknown = true;
413
414	// if we're inside a document all the classification buttons should be enabled
415	text_t this_tab;
416	bool is_top;
417
418	is_top = ((*dochere).OID == topparent);
419	// set default text fragment
420	this_tab = "_navtab_(";
421
422	if (unknown) { // just give the field name
423	if (!arg_d.empty() \|\| !is_top) {
424	// work out the link for this classifier, as it isn't the
425	// current page
426	this_tab += "_httpdocument_&cl=" + (*dochere).OID
427	+ date_extra;
428	}
429	this_tab += "," + title + "," + title;
430	} else { // use the macro for this field so we get translations
431	this_tab += "_httpbrowse" + title;
432	this_tab += "_,_tabtext" + title;
433	this_tab += "_,_textdescr" + title + "_";
434	}
435
436	if (arg_d.empty() && is_top) {
437	// don't link to this classifier as it is the current one
438	this_tab += ",selected";
439	}
440
441	// set the _httpbrowseXXX_ macro for this classification
442	// set the correct url for this link
443	disp.setmacro ("httpbrowse" + title, displayclass::defaultpackage, "_httpdocument_&cl=" + (*dochere).OID+date_extra);
444
445
446	this_tab += ")";
447
448	navigationbar += this_tab;
449
450	++dochere;
451	first = false;
452	}
453
454	if (!has_search_button && numc == 1) navigationbar += "_navbarspacer_";
455
456	navigationbar += "\n<!-- End of Navigation Bar -->\n";
457
458	} else {
459
460	navigationbar = "<form method=\"get\" name=\"navform\">\n";
461	navigationbar += "<select name=\"navbar\" onChange=\"location.href=";
462	navigationbar += "document.navform.navbar.options[document.navform.navbar.selectedIndex].value\">\n";
463
464	if (args["a"] != "q" && args["cl"].empty()) {
465	navigationbar += "<option value=\"\" selected>_textselectpage_</option>\n";
466	}
467
468	if (has_search_button) {
469	navigationbar += "<option value=\"_httpquery_\"";
470	if (args["a"] == "q") {
471	navigationbar += " selected";
472	}
473	navigationbar += ">_tabtextsearch_</option>\n";
474	}
475
476	while (dochere != docend) {
477	text_t title = dochere->metadata["Title"].values[0];
478	if (title == "Date") { // a date list
479	text_t date_meta = (*dochere).metadata["mdtype"].values[0];
480	if (date_meta == "") {
481	date_meta = "Date";
482	}
483	date_extra = "&dm="+date_meta;
484	}
485
486	navigationbar += "<option value=\"_httpdocument_&cl=" + dochere->OID +date_extra+ "\"";
487	if (topparent == dochere->OID) {
488	navigationbar += " selected";
489	}
490	navigationbar += ">" + title + "</option>\n";
491	++dochere;
492	}
493
494	navigationbar += "</select>\n";
495	navigationbar += "</form>\n";
496	}
497
498	disp.setmacro ("navigationbar", displayclass::defaultpackage, navigationbar);
499	}
500
501	// define all the macros which might be used by other actions
502	// to produce pages.
503	void documentaction::define_external_macros (displayclass &disp, cgiargsclass &args,
504	recptprotolistclass *protos, ostream &logout) {
505
506	// define_external_macros sets the following macros:
507
508	// _navigationbar_ this is the navigation bar containing the search button
509	// and any classification buttons - it goes at the top of
510	// most pages. for now we're assuming that there'll always
511	// be a search button - we should probably check that there
512	// is a query action before making this assumption
513
514	// _httpbrowseXXX_ the http macros for each classification (i.e. if there
515	// are Title and Creator classifications _httpbrowseTitle_
516	// and _httpbrowseCreator_ will be set
517
518	// _widthtspace_ the width of the spacers between buttons in navigation
519	// bar
520
521	// _httpdocument_ has '&f=1' added if displaying document inside a frame
522
523	// _gsdltop_ macro to replace _top targets with
524
525	// _httppagehome_ overridden home url if html collections have own homepage
526
527
528	// must have a valid collection server to continue
529
530	text_t &collection = args["c"];
531	if (collection.empty()) return;
532	recptproto *collectproto = protos->getrecptproto (collection, logout);
533	if (collectproto == NULL) return;
534
535	if (recpt == NULL) {
536	logout << "ERROR (documentaction::define_external_macros): This action does not contain\n"
537	<< " information about any receptionists. The method set_receptionist was\n"
538	<< " probably not called from the module which instantiated this action.\n";
539	return;
540	}
541
542	outconvertclass text_t2ascii;
543	comerror_t err;
544	InfoFiltersResponse_t filterinfo;
545	FilterResponse_t response;
546	text_tset metadata;
547
548	// get info on current collection and load up formatinfo
549	// I'd prefer not to do this here as we're getting
550	// collection info every time (and probably also getting
551	// it in other places some of the time) - One day I'll
552	// fix it ... maybe - Stefan.
553	ColInfoResponse_t cinfo;
554
555	collectproto->get_collectinfo (collection, cinfo, err, logout);
556	load_formatinfo (cinfo.format, args.getintarg("gt"));
557	// ColInfoResponse_t *cinfo = recpt->get_collectinfo_ptr (collectproto, collection, logout);
558	// if (cinfo == NULL) {
559	// logout << "ERROR (documentaction::define_external_macros): get_collectinfo_ptr returned NULL\n";
560	// return;
561	// }
562	//load_formatinfo (cinfo->format, args.getintarg("gt"));
563
564	if (formatinfo.DocumentUseHTML) {
565
566	// frame stuff
567	if (args["fc"] == "1") {
568	text_t httpdocument;
569	disp.expandstring (displayclass::defaultpackage, "_httpdocument_", httpdocument);
570	httpdocument += "&f=1";
571	disp.setmacro ("httpdocument", displayclass::defaultpackage, httpdocument);
572	disp.setmacro ("gsdltop", displayclass::defaultpackage, "documenttop");
573	formatinfo.DocumentText = "[Text]";
574	}
575	text_tmap::iterator it = cinfo.format.find ("homepage");
576	if (it != cinfo.format.end()) {
577	text_t httppagehome;
578	if (get_link (args, protos, (*it).second, httppagehome, logout))
579	disp.setmacro ("httppagehome", displayclass::defaultpackage, httppagehome);
580	}
581	}
582
583	// don't want navigation bar if page is 'detached'
584	if (!args.getintarg("x")) {
585
586	collectproto->get_filterinfo (collection, filterinfo, err, logout);
587	if (err == noError) {
588	// check that there's a browse filter
589	if (filterinfo.filterNames.find ("BrowseFilter") != filterinfo.filterNames.end()) {
590
591	metadata.insert ("Title");
592	metadata.insert ("mdtype"); // in case there is a datelist
593	bool getParents = false;
594	get_children ("", collection, args["l"], metadata, getParents, collectproto, response, logout);
595
596	bool has_search_button = true;
597	collectproto->is_searchable(collection, has_search_button, err, logout);
598	if (err != noError) has_search_button = true;
599
600	// calculate width of spacers and set _widthtspace_ macro
601	if (args.getintarg("v") == 0) set_spacemacro (disp, response, has_search_button);
602
603	// set _navigationbar_ macro
604	set_navbarmacros (disp, response, has_search_button, args, cinfo);
605
606	}
607	} else {
608	logout << text_t2ascii
609	<< "Error (documentaction::define_external_macros()) in call to get_filterinfo() "
610	<< get_comerror_string (err);
611	}
612	}
613	}
614
615	bool documentaction::get_link (cgiargsclass &args, recptprotolistclass *protos,
616	const text_t &inlink, text_t &outlink, ostream &logout) {
617
618	FilterResponse_t response;
619	text_tset metadata;
620	metadata.insert ("section");
621
622	// check current collection first
623	recptproto *collectproto = protos->getrecptproto (args["c"], logout);
624
625	if (get_info (inlink, args["c"], args["l"], metadata, false, collectproto, response, logout)) {
626	if (!response.docInfo[0].metadata["section"].values[0].empty()) {
627	outlink = "_httpdocument_&d=" + response.docInfo[0].metadata["section"].values[0];
628	return true;
629	}
630	}
631
632	// check all the other enabled collections
633
634	if (args["ccs"] == "1" && !args["cc"].empty()) {
635	text_tarray collections;
636	splitchar (args["cc"].begin(), args["cc"].end(), ',', collections);
637
638	text_tarray::const_iterator col_here = collections.begin();
639	text_tarray::const_iterator col_end = collections.end();
640
641	while (col_here != col_end) {
642
643	// don't need to check current collection again
644	if (*col_here == args["c"]) {++col_here; continue;}
645
646	collectproto = protos->getrecptproto (*col_here, logout);
647
648	if (get_info (inlink, *col_here, args["l"], metadata, false, collectproto, response, logout)) {
649	if (!response.docInfo[0].metadata["section"].values[0].empty()) {
650	outlink = "_httpdocument_&c=" + *col_here + "&d=" +
651	response.docInfo[0].metadata["section"].values[0];
652	return true;
653	}
654	}
655	++col_here;
656	}
657	}
658	return false;
659	}
660
661	void documentaction::load_formatinfo (const text_tmap &colformat, int gt) {
662
663	formatinfo.clear();
664	text_tmap::const_iterator format_here = colformat.begin();
665	text_tmap::const_iterator format_end = colformat.end();
666
667	while (format_here != format_end) {
668	if (((*format_here).first == "DocumentImages") &&
669	((*format_here).second == "true"))
670	formatinfo.DocumentImages = true;
671	else if (((*format_here).first == "DocumentTitles") &&
672	((*format_here).second == "false"))
673	formatinfo.DocumentTitles = false;
674	else if ((*format_here).first == "DocumentHeading")
675	formatinfo.DocumentHeading = (*format_here).second;
676	else if (((*format_here).first == "DocumentContents") &&
677	((*format_here).second == "false"))
678	formatinfo.DocumentContents = false;
679	else if (((*format_here).first == "DocumentArrowsBottom") &&
680	((*format_here).second == "false"))
681	formatinfo.DocumentArrowsBottom = false;
682	else if (((*format_here).first == "DocumentArrowsTop") &&
683	((*format_here).second == "true"))
684	formatinfo.DocumentArrowsTop = true;
685	else if ((*format_here).first == "DocumentButtons")
686	splitchar ((format_here).second.begin(), (format_here).second.end(),
687	'\|', formatinfo.DocumentButtons);
688	else if ((*format_here).first == "DocumentText")
689	formatinfo.DocumentText = (*format_here).second;
690	else if ((*format_here).first == "RelatedDocuments")
691	formatinfo.RelatedDocuments = (*format_here).second;
692	else if (((*format_here).first == "DocumentUseHTML") &&
693	((*format_here).second == "true"))
694	formatinfo.DocumentUseHTML = true;
695	else if (((*format_here).first == "AllowExtendedOptions") &&
696	((*format_here).second == "true"))
697	formatinfo.AllowExtendedOptions = true;
698	else
699	formatinfo.formatstrings[(format_here).first] = (format_here).second;
700
701	++format_here;
702	}
703
704	// never want arrows when text is expanded
705	if (gt) {
706	formatinfo.DocumentArrowsBottom = false;
707	formatinfo.DocumentArrowsTop = false;
708	}
709	}
710
711
712	// define all the macros which are related to pages generated
713	// by this action. we also load up the formatinfo structure
714	// here (it's used in do_action as well as here)
715	void documentaction::define_internal_macros (displayclass &disp, cgiargsclass &args,
716	recptprotolistclass *protos, ostream &logout) {
717
718	// define_internal_macros sets the following macros:
719
720	// _pagetitle_ the title to be displayed at the top of the browser window
721
722	// _imagethispage_ the title image to be displayed at top right of page
723
724	// _navarrowsbottom_ this may be overridden to "" when format option
725	// DocumentArrowsBottom is false
726
727	// _navarrowstop_ likewise for DocumentArrowsTop
728
729	// _httpprevarrow_ links to next and previous sections of document - used
730	// _httpnextarrow_ by DocumentArrowsBottom
731
732	// _header_ the header macro is overridden if we're not at a top level
733	// classification to remove the title block
734
735	// _thisOID_ the OID (directory) of the current document - this corresponds
736	// to the archivedir metadata element
737
738	// must have a valid collection server to continue
739
740	text_t &collection = args["c"];
741	if (collection.empty()) return;
742	recptproto *collectproto = protos->getrecptproto (collection, logout);
743	if (collectproto == NULL) return;
744
745	text_tset metadata;
746	FilterResponse_t response;
747	text_t &arg_d = args["d"];
748	text_t &arg_cl = args["cl"];
749
750	if (!formatinfo.DocumentArrowsBottom) {
751	disp.setmacro("navarrowsbottom", "document", "");
752	} else if (!formatinfo.DocumentArrowsBottom) {
753	disp.setmacro("navarrowstop", "document", "");
754	}
755
756	if (!arg_d.empty() && (formatinfo.DocumentArrowsBottom \|\| formatinfo.DocumentArrowsTop)) {
757	// set _httpprevarrow_ and _httpnextarrow_
758	set_arrow_macros (args, collectproto, disp, logout);
759	}
760
761	metadata.insert ("Title");
762
763	bool fulltoc = false;
764
765	if (args["cl"] != "search") {
766	// see if there's a FullTOC string
767	text_t cl_top, full_toc;
768	get_top (arg_cl, cl_top);
769	if (get_formatstring (cl_top, "FullTOC", formatinfo.formatstrings, full_toc))
770	if (full_toc == "true") fulltoc = true;
771	}
772
773	if (!arg_d.empty() && !fulltoc) {
774	// we're at document level
775
776	metadata.insert ("archivedir");
777
778	comerror_t err;
779	OptionValue_tarray options;
780	// we need to do the query again for the z3950proto
781	if (collectproto->get_protocol_name(err)=="z3950proto") {
782	OptionValue_t opt;
783	opt.name="Term";opt.value=args["q"];options.push_back(opt);
784	opt.name="QueryType";
785	opt.value=(args.getintarg("t")) ? "ranked" : "boolean";
786	options.push_back(opt);
787	opt.name="Index";opt.value=args["h"];options.push_back(opt);
788	}
789
790	//do not display relation metadata
791	disp.setmacro ("relateddoc", "document", "");
792
793	//if preferences indicate relevant docs should be collected
794	//and there is no particular format specified then display
795	//this default format.
796	if(args["rd"] == "1" && formatinfo.RelatedDocuments.empty()){
797
798	text_t relation = g_EmptyText; //string for displaying relation metadata
799
800	//call function in formattools.cpp which will return the text of the
801	//related documents in a vertical list. This is the default format.
802
803	if (get_info (arg_d, collection, args["l"], metadata, options, false, collectproto, response, logout))
804	relation += get_related_docs(collection, collectproto, response.docInfo[0], logout);
805
806	//set macro to be the related document string
807
808	disp.setmacro ("relateddoc", "document", relation);
809	}
810
811
812	// get metadata for this document and it's parents
813	if (get_info (arg_d, collection, args["l"], metadata, options,
814	true, collectproto, response, logout)) {
815
816	disp.setmacro ("header", "document", "_textheader_");
817
818	text_tarray pagetitlearray;
819	if (!response.docInfo[0].metadata["Title"].values[0].empty())
820	pagetitlearray.push_back (response.docInfo[0].metadata["Title"].values[0]);
821
822	if (args["gt"] != "1") {
823	MetadataInfo_t *parenttitle = response.docInfo[0].metadata["Title"].parent;
824	while (parenttitle != NULL) {
825	if (!parenttitle->values[0].empty())
826	pagetitlearray.push_back (parenttitle->values[0]);
827	parenttitle = parenttitle->parent;
828	}
829	}
830	reverse (pagetitlearray.begin(), pagetitlearray.end());
831	text_t pagetitle;
832	joinchar (pagetitlearray, ": ", pagetitle);
833	// remove html tags from the title
834	text_t::iterator open_tag=pagetitle.begin();
835	while (open_tag < pagetitle.end()) {
836	if (*open_tag == '<') {
837	text_t::iterator close_tag=open_tag+1;
838	text_t::iterator donechar=pagetitle.end();
839	while (close_tag < donechar) {
840	if (*close_tag == '>')
841	break;
842	++close_tag;
843	}
844	if (close_tag < donechar) // remove this html tag, replace with space
845	*close_tag=' ';
846	pagetitle.erase(open_tag, close_tag);
847	}
848	++open_tag;
849	}
850	disp.setmacro ("pagetitle", "document", pagetitle);
851
852	if (is_top (arg_d))
853	disp.setmacro ("thisOID", displayclass::defaultpackage, dm_safe(response.docInfo[0].metadata["archivedir"].values[0]));
854	else {
855	MetadataInfo_t *parentad = response.docInfo[0].metadata["archivedir"].parent;
856	text_t thisOID;
857	while (parentad != NULL) {
858	thisOID = parentad->values[0];
859	parentad = parentad->parent;
860	}
861	disp.setmacro ("thisOID", displayclass::defaultpackage, dm_safe(thisOID));
862	}
863	}
864	} else {
865	if (!arg_cl.empty()) {
866
867	// create the currentnodevalue macro - this is the value of the node
868	// in the hierarchy that is currently open.
869	if (get_info (arg_cl, collection, args["l"], metadata, false, collectproto, response, logout)) {
870	text_t &title = response.docInfo[0].metadata["Title"].values[0];
871	disp.setmacro ("currentnodevalue", "document", title);
872	}
873	// get metadata for top level classification
874	text_t classtop;
875	get_top (arg_cl, classtop);
876	metadata.insert ("childtype");
877	metadata.insert ("parameters");
878
879	if (get_info (classtop, collection, args["l"], metadata, false, collectproto, response, logout)) {
880
881	text_t &title = response.docInfo[0].metadata["Title"].values[0];
882	bool unknown = false;
883
884	// test if we have macros defined for this classification's
885	// metadata name - if not we'll just display the name
886	text_t tmp;
887	text_t macroname="_label" + title + "_";
888	disp.expandstring ("Global", macroname, tmp);
889	if (tmp == macroname) unknown = true; // it wasn't expanded
890
891	if (unknown) {
892	disp.setmacro ("pagetitle", "document", title);
893	} else {
894	disp.setmacro ("pagetitle", "document", macroname);
895	}
896	/* for ns4/image layout compatibility. when this is no longer
897	* needed, set imagethispage to _label+title+_ */
898	text_t titlemacroname="_titleimage" + title + "_";
899	disp.expandstring ("Global", titlemacroname, tmp);
900	if (tmp == titlemacroname) { /* _titleimage$META_ isn't defined */
901	if (!unknown) /* _label$META_ is defined */
902	disp.setmacro ("imagethispage", "document", macroname);
903	else
904	disp.setmacro ("imagethispage", "document", title);
905	} else { /* _titleimage$META_ is defined */
906	disp.setmacro ("imagethispage", "document", titlemacroname);
907	}
908
909	//if the document is not a document from a collection
910	//we must set the macro to be an empty string
911	disp.setmacro ("relateddoc", "document", "");
912
913	// Add macros specific to the Collage/Phind classifiers
914	text_t &childtype = response.docInfo[0].metadata["childtype"].values[0];
915	if (childtype == "Collage") {
916
917	text_t::iterator a = arg_cl.begin();
918	text_t::iterator b = arg_cl.end();
919
920	bool collage = true;
921	while (a != b) {
922	if (*a == 46) collage = false;
923	++a;
924	}
925
926	if (collage) {
927	disp.setmacro ("collageclassifier", "document", "_collageapplet_");
928
929	// Next, macros that control the way the classifier is displayed
930	text_t parameters = response.docInfo[0].metadata["parameters"].values[0];
931
932	// extract key=value pairs and set as macros
933	text_t::iterator here = parameters.begin();
934	text_t::iterator end = parameters.end();
935	text_t key, value;
936
937	while (here != end) {
938	// get the next key and value pair
939	here = getdelimitstr (here, end, '=', key);
940	here = getdelimitstr (here, end, ';', value);
941
942	// store this key=value pair
943	if (!key.empty() && !value.empty()) {
944	disp.setmacro ("collage"+key, "document", value);
945	}
946	}
947
948
949	}
950	}
951
952	if (childtype == "Phind") {
953
954	// First, a macro to display the phind classifier
955	disp.setmacro ("phindclassifier", "document", "_phindapplet_");
956
957	// Next, macros that control the way the classifier is displayed
958	text_t parameters = response.docInfo[0].metadata["parameters"].values[0];
959
960	// extract key=value pairs and set as macros
961	text_t::iterator here = parameters.begin();
962	text_t::iterator end = parameters.end();
963	text_t key, value;
964
965	while (here != end) {
966	// get the next key and value pair
967	here = getdelimitstr (here, end, '=', key);
968	here = getdelimitstr (here, end, ';', value);
969
970	// store this key=value pair
971	if (!key.empty() && !value.empty()) {
972	disp.setmacro (key, "document", value);
973	}
974	}
975	} // end if (childtype == "Phind")
976	}
977	} // end if (!arg_cl.empty()) {
978	}
979	}
980
981
982	bool documentaction::do_action (cgiargsclass &args, recptprotolistclass *protos,
983	browsermapclass *browsers, displayclass &disp,
984	outconvertclass &outconvert, ostream &textout,
985	ostream &logout) {
986
987	// must have a valid collection server
988	recptproto *collectproto = protos->getrecptproto (args["c"], logout);
989	if (collectproto == NULL) {
990	logout << "documentaction::do_action called with NULL collectproto\n";
991	textout << outconvert << disp << "_document:header_\n"
992	<< "Error: Attempt to get document without setting collection\n"
993	<< "_document:footer_\n";
994	} else {
995
996	text_t OID = args["d"];
997	if (OID.empty()) OID = args["cl"];
998	if (OID.empty()) {
999	textout << outconvert << disp << "Document contains no data_document:footer_\n";
1000	return true;
1001	}
1002
1003
1004	if (formatinfo.DocumentUseHTML && !args["d"].empty()) {
1005
1006	if (args["f"] == "1") {
1007	textout << outconvert << disp
1008	<< "<html><head></head>\n"
1009	<< "<frameset rows=\"68,*\" noresize border=0>\n"
1010	<< "<frame scrolling=no frameborder=0 src=\"_gwcgi_?_optsite_e=_compressedoptions_&a=p&p=nav\">\n"
1011	<< "<frame name=\"documenttop\" frameborder=0 src=\"_gwcgi_?_optsite_e=_compressedoptions_&a=d&d="
1012	<< args["d"] << "\">"
1013	<< "<noframes>\n"
1014	<< "<p>You must have a frame enabled browser to view this.</p>\n"
1015	<< "</noframes>\n"
1016	<< "</frameset>\n"
1017	<< "</html>\n";
1018	} else {
1019	output_document (OID, args, collectproto, browsers, disp, outconvert, textout, logout);
1020	}
1021	return true;
1022	}
1023
1024
1025	textout << outconvert << disp << "_document:header_\n"
1026	<< "_document:content_\n";
1027
1028	// output the table of contents
1029	output_toc (args, browsers, formatinfo, collectproto,
1030	disp, outconvert, textout, logout);
1031
1032	if (formatinfo.DocumentArrowsTop && !args["d"].empty()) {
1033	textout << outconvert << disp << "_document:navarrowstop_\n";
1034	}
1035
1036	//output the related documents (may be the empty string)
1037	//will not output the docs if a format string is specified
1038	textout << outconvert << disp << "_document:relateddoc_\n";
1039
1040	// output the document text
1041	if (!args["d"].empty()) {
1042	textout << outconvert << "<p>\n";
1043	output_document (OID, args, collectproto, browsers, disp, outconvert, textout, logout);
1044	}
1045
1046	textout << outconvert << disp << "_document:footer_\n";
1047	}
1048	return true;
1049	}
1050
1051	void documentaction::output_text (ResultDocInfo_t &docinfo, format_t *formatlistptr,
1052	const TermInfo_tarray &terminfo, const text_t &OID,
1053	bool highlight, int hastxt, int wanttext,
1054	text_t &collection, recptproto *collectproto,
1055	browsermapclass *browsers, displayclass &disp,
1056	outconvertclass &outconvert, ostream &textout,
1057	ostream &logout, cgiargsclass &args) {
1058
1059	DocumentRequest_t docrequest;
1060	DocumentResponse_t docresponse;
1061	comerror_t err;
1062	if (hastxt == 1) {
1063
1064	if (wanttext) {
1065	// get the text
1066	docrequest.OID = OID;
1067	collectproto->get_document (collection, docrequest, docresponse, err, logout);
1068
1069	// cut down on overhead by not using formattools if we only want the text
1070	// (wanttext will equal 2 if we want text and other stuff too)
1071	if (wanttext == 1)
1072	if (highlight) {
1073	highlighttext(docresponse.doc, args, terminfo, disp, outconvert, textout);
1074	} else {
1075	textout << outconvert << disp << docresponse.doc;
1076	}
1077	}
1078
1079	if (wanttext != 1) {
1080	text_tmap options;
1081	options["text"] = docresponse.doc;
1082
1083	if (formatinfo.AllowExtendedOptions) {
1084	load_extended_options(options, args, browsers, formatinfo,
1085	collectproto, disp, outconvert, logout);
1086	}
1087
1088	text_t doctext
1089	= get_formatted_string (collection, collectproto, docinfo, disp,
1090	formatlistptr, options, logout);
1091
1092	if (highlight) {
1093	highlighttext(doctext, args, terminfo, disp, outconvert, textout);
1094	} else {
1095	textout << outconvert << disp << doctext;
1096	}
1097	}
1098	}
1099	}
1100
1101
1102	void documentaction::output_document (const text_t &OID, cgiargsclass &args,
1103	recptproto collectproto, browsermapclass browsers,
1104	displayclass &disp, outconvertclass &outconvert,
1105	ostream &textout, ostream &logout) {
1106	FilterResponse_t inforesponse;
1107	FilterResponse_t queryresponse;
1108	text_tset metadata;
1109	bool getParents = false;
1110	bool highlight = false;
1111	int wanttext = 0;
1112	int arg_gt = args.getintarg("gt");
1113	text_t &collection = args["c"];
1114
1115	// if we have a query string and highlighting is turned on we need
1116	// to redo the query to get the terms for highlighting
1117
1118	if (!args["q"].empty() && args.getintarg("hl")) {
1119
1120	ColInfoResponse_t *cinfo = recpt->get_collectinfo_ptr (collectproto, collection, logout);
1121	bool segment = false;
1122	if (cinfo != NULL) {
1123	segment = cinfo->isSegmented;
1124	}
1125	FilterRequest_t request;
1126	comerror_t err;
1127	request.filterResultOptions = FRmatchTerms;
1128	text_t formattedstring = args["q"];
1129	format_querystring (formattedstring, args.getintarg("b"), segment);
1130	set_queryfilter_options (request, formattedstring, args);
1131	args["q"] = formattedstring; // need to set this here for phrase
1132	// highlighting, where we look at the querystring
1133	collectproto->filter (args["c"], request, queryresponse, err, logout);
1134	if (err != noError) {
1135	outconvertclass text_t2ascii;
1136	logout << text_t2ascii
1137	<< "documentaction::output_document: call to QueryFilter failed "
1138	<< "for " << args["c"] << " collection (" << get_comerror_string (err) << ")\n";
1139	highlight = false;
1140	} else {
1141	highlight = true;
1142	}
1143	}
1144
1145	format_t *formatlistptr = new format_t();
1146	parse_formatstring (formatinfo.DocumentText, formatlistptr, metadata, getParents);
1147
1148	metadata.insert ("hastxt");
1149	metadata.insert ("haschildren");
1150
1151	if (formatinfo.DocumentText == "[Text]")
1152	wanttext = 1;
1153	else {
1154	char *docformat = formatinfo.DocumentText.getcstr();
1155	if (strstr (docformat, "[Text]") != NULL)
1156	wanttext = 2;
1157	delete []docformat;
1158	}
1159
1160	textout << outconvert << "<div class=\"documenttext\">\n";
1161
1162	if (get_info (OID, collection, args["l"], metadata, getParents, collectproto, inforesponse, logout)) {
1163	int hastxt = inforesponse.docInfo[0].metadata["hastxt"].values[0].getint();
1164	int haschildren = inforesponse.docInfo[0].metadata["haschildren"].values[0].getint();
1165
1166	if (arg_gt == 0) {
1167	output_text (inforesponse.docInfo[0], formatlistptr, queryresponse.termInfo,
1168	OID, highlight, hastxt, wanttext, collection, collectproto,
1169	browsers, disp, outconvert, textout, logout, args);
1170
1171	} else {
1172
1173	ResultDocInfo_t thisdocinfo = inforesponse.docInfo[0];
1174
1175	// text is to be expanded
1176	text_t exOID = OID;
1177	if (haschildren != 1) exOID = get_parent (OID);
1178	if (exOID.empty()) exOID = OID;
1179
1180	// if we're not in a document (i.e. we're in a top level classification)
1181	// we need to pass "is_classify = true" to get_contents so that it
1182	// doesn't recurse all the way through each document in the classification
1183	bool is_classify = false;
1184	if (args["d"].empty()) is_classify = true;
1185
1186	get_contents (exOID, is_classify, metadata, collection, args["l"],
1187	collectproto, inforesponse, logout);
1188
1189	ResultDocInfo_tarray::iterator sechere = inforesponse.docInfo.begin();
1190	ResultDocInfo_tarray::iterator secend = inforesponse.docInfo.end();
1191
1192	if (arg_gt == 1) {
1193	// check if there are more than 10 sections containing text to be expanded -
1194	// if there are output warning message - this isn't a great way to do this
1195	// since the sections may be very large or very small - one day I'll fix it
1196	// -- Stefan.
1197	int seccount = 0;
1198	while (sechere != secend) {
1199	int shastxt = (*sechere).metadata["hastxt"].values[0].getint();
1200	if (shastxt == 1) ++seccount;
1201	if (seccount > 10) break;
1202	++sechere;
1203	}
1204	if (seccount > 10) {
1205	// more than 10 sections so output warning message and text
1206	// for current section only
1207	textout << outconvert << disp << "<div class=\"warning\">_document:textltwarning_</div>\n";
1208
1209	output_text (thisdocinfo, formatlistptr, queryresponse.termInfo,
1210	OID, highlight, hastxt, wanttext, collection,
1211	collectproto, browsers, disp, outconvert, textout, logout, args);
1212
1213	}
1214	else arg_gt = 2;
1215	}
1216
1217	if (arg_gt == 2) {
1218	// get the text for each section
1219	sechere = inforesponse.docInfo.begin();
1220	int count = 0;
1221	while (sechere != secend) {
1222	textout << outconvert << disp << "\n<p><a name=" << (*sechere).OID << "></a>\n";
1223
1224	int shastxt = (*sechere).metadata["hastxt"].values[0].getint();
1225
1226	output_text (*sechere, formatlistptr, queryresponse.termInfo,
1227	(*sechere).OID, highlight, shastxt, wanttext, collection,
1228	collectproto, browsers, disp, outconvert, textout, logout, args);
1229	++count;
1230	++sechere;
1231	}
1232	}
1233	}
1234	}
1235	textout << outconvert << "</div>\n";
1236	delete formatlistptr;
1237	}
1238
1239	void documentaction::set_arrow_macros (cgiargsclass &args, recptproto *collectproto,
1240	displayclass &disp, ostream &logout) {
1241
1242	text_tset metadata;
1243	FilterResponse_t response;
1244	FilterResponse_t presponse;
1245
1246	int haschildren = 0;
1247	text_tarray next_siblings;
1248	text_t previous_sibling;
1249	text_t &arg_d = args["d"];
1250
1251	// get info on current section
1252	metadata.insert("haschildren");
1253	if (!get_info(arg_d, args["c"], args["l"], metadata, false, collectproto, response, logout)) {
1254	logout << "error 1 in documentaction::set_arrow_macros\n";
1255	return;
1256	}
1257	haschildren = response.docInfo[0].metadata["haschildren"].values[0].getint();
1258
1259	// get OIDs of next and previous siblings of current section and
1260	// all it's parents
1261	int parentcount = countchar(arg_d.begin(), arg_d.end(), '.');
1262	text_t thisoid = arg_d;
1263	while (parentcount > 0) {
1264	get_children (get_parent(thisoid), args["c"], args["l"], metadata, false,
1265	collectproto, response, logout);
1266	ResultDocInfo_tarray::iterator this_sibling = response.docInfo.begin();
1267	ResultDocInfo_tarray::iterator last_sibling = response.docInfo.end();
1268	bool first = true;
1269	while (this_sibling != last_sibling) {
1270	if ((*this_sibling).OID == thisoid) {
1271	if (!first && next_siblings.empty()) {
1272	previous_sibling = (*(this_sibling-1)).OID;
1273	int section_has_children = (*(this_sibling-1)).metadata["haschildren"].values[0].getint();
1274	// if previous sibling has children we need to recurse
1275	// down to the last descendant
1276	while (section_has_children) {
1277	get_children (previous_sibling, args["c"], args["l"], metadata, false,
1278	collectproto, presponse, logout);
1279	if (!presponse.docInfo.empty()) {
1280	ResultDocInfo_tarray::iterator it = presponse.docInfo.end() - 1;
1281	previous_sibling = (*it).OID;
1282	section_has_children = (*it).metadata["haschildren"].values[0].getint();
1283	} else {
1284	section_has_children = 0; // this should never happen
1285	}
1286	}
1287	}
1288
1289	if ((this_sibling+1) != last_sibling) {
1290	next_siblings.push_back((*(this_sibling+1)).OID);
1291	} else {
1292	next_siblings.push_back("");
1293	}
1294	break;
1295	}
1296	++this_sibling;
1297	first = false;
1298	}
1299	thisoid = get_parent(thisoid);
1300	--parentcount;
1301	}
1302
1303	// work out values for next link
1304	if (haschildren) {
1305	disp.setmacro ("httpnextarrow", "document", "_httpdocument_&cl=" + args["cl"] +
1306	"&d=" + arg_d + ".fc");
1307	} else {
1308	text_tarray::const_iterator h = next_siblings.begin();
1309	text_tarray::const_iterator e = next_siblings.end();
1310	while (h != e) {
1311	if (!(*h).empty()) {
1312	disp.setmacro ("httpnextarrow", "document", "_httpdocument_&cl=" + args["cl"] +
1313	"&d=" + *h);
1314	break;
1315	}
1316	++h;
1317	}
1318	}
1319
1320	// work out value for previous link
1321	if (!previous_sibling.empty()) {
1322	disp.setmacro ("httpprevarrow", "document", "_httpdocument_&cl=" + args["cl"] +
1323	"&d=" + previous_sibling);
1324	} else {
1325	if (countchar(arg_d.begin(), arg_d.end(), '.')) {
1326	disp.setmacro ("httpprevarrow", "document", "_httpdocument_&cl=" + args["cl"] +
1327	"&d=" + get_parent(arg_d));
1328	}
1329	}
1330	}

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