4 * BBS View renderer module for WebCit
6 * Note: we briefly had a dynamic UI for this. I thought it was cool, but
7 * it was not received well by the user community. If you want to play
8 * with it, go get r8256 of bbsview_renderer.c and have fun.
10 * Copyright (c) 1996-2010 by the citadel.org team
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 3 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #include "webserver.h"
34 * Data which gets passed around between the various functions in this module
38 long *msgs; /* Array of msgnums for messages we are displaying */
39 int num_msgs; /* Number of msgnums stored in 'msgs' */
40 long lastseen; /* The number of the last seen message in this room */
41 int alloc_msgs; /* Currently allocated size of array */
42 int requested_page; /* Which page number did the user request? */
47 * Attempt to determine the closest thing to the "last seen message number" using the
48 * results of the GTSN command
50 long bbsview_get_last_seen(void)
55 serv_getln(buf, sizeof buf);
58 char *comma_pos = strchr(buf, ','); /* kill first comma and everything to its right */
63 char *colon_pos = strchr(buf, ':'); /* kill first colon and everything to its left */
65 strcpy(buf, ++colon_pos);
75 * Entry point for message read operations.
77 int bbsview_GetParamsGetServerCall(SharedMessageStatus *Stat,
83 struct bbsview *BBS = malloc(sizeof(struct bbsview));
84 memset(BBS, 0, sizeof(struct bbsview));
87 Stat->startmsg = -1; /* not used here */
88 Stat->sortit = 1; /* not used here */
89 Stat->num_displayed = DEFAULT_MAXMSGS; /* not used here */
90 BBS->requested_page = 0;
91 BBS->lastseen = bbsview_get_last_seen();
93 /* If a specific page was requested, make sure we go there */
94 if (havebstr("page")) {
95 BBS->requested_page = ibstr("page");
98 /* Otherwise, if this is a "read new" operation, make sure we start on the page
99 * containing the first new message
101 else if (oper == 3) {
102 BBS->requested_page = (-3);
105 if (havebstr("maxmsgs")) {
106 Stat->maxmsgs = ibstr("maxmsgs");
108 if (Stat->maxmsgs == 0) Stat->maxmsgs = DEFAULT_MAXMSGS;
110 /* perform a "read all" call to fetch the message list -- we'll cut it down later */
111 rlid[2].cmd(cmd, len);
118 * This function is called for every message in the list.
120 int bbsview_LoadMsgFromServer(SharedMessageStatus *Stat,
122 message_summary* Msg,
126 struct bbsview *BBS = (struct bbsview *) *ViewSpecific;
128 if (BBS->alloc_msgs == 0) {
129 BBS->alloc_msgs = 1000;
130 BBS->msgs = malloc(BBS->alloc_msgs * sizeof(long));
131 memset(BBS->msgs, 0, (BBS->alloc_msgs * sizeof(long)) );
134 /* Check our buffer size */
135 if (BBS->num_msgs >= BBS->alloc_msgs) {
136 BBS->alloc_msgs *= 2;
137 BBS->msgs = realloc(BBS->msgs, (BBS->alloc_msgs * sizeof(long)));
138 memset(&BBS->msgs[BBS->num_msgs], 0, ((BBS->alloc_msgs - BBS->num_msgs) * sizeof(long)) );
141 BBS->msgs[BBS->num_msgs++] = Msg->msgnum;
147 int bbsview_sortfunc(const void *s1, const void *s2) {
154 if (l1 > l2) return(+1);
155 if (l1 < l2) return(-1);
160 int bbsview_RenderView_or_Tail(SharedMessageStatus *Stat,
164 struct bbsview *BBS = (struct bbsview *) *ViewSpecific;
171 if (Stat->nummsgs > 0) {
172 lprintf(9, "sorting %d messages\n", BBS->num_msgs);
173 qsort(BBS->msgs, (size_t)(BBS->num_msgs), sizeof(long), bbsview_sortfunc);
176 /* If the requested page number is "whichever page on which new messages start"
177 * then change that to an actual page number now.
179 if (BBS->requested_page == (-3)) {
180 if (BBS->num_msgs == 0) {
181 BBS->requested_page = 0;
184 for (i=0; i<BBS->num_msgs; ++i) {
186 (BBS->msgs[i] > BBS->lastseen)
187 && ( (i == 0) || (BBS->msgs[i-1] <= BBS->lastseen) )
189 BBS->requested_page = (i / Stat->maxmsgs) ;
195 start_index = BBS->requested_page * Stat->maxmsgs;
196 if (start_index < 0) start_index = 0;
197 end_index = start_index + Stat->maxmsgs - 1;
199 for (seq = 0; seq < 3; ++seq) { /* cheap & sleazy way of rendering the page numbers twice */
201 if ( (seq == 1) && (Stat->nummsgs > 0)) {
202 /* display the selected range of messages */
204 for (i=start_index; (i<=end_index && i<BBS->num_msgs); ++i) {
206 (BBS->msgs[i] > BBS->lastseen)
207 && ( (i == 0) || (BBS->msgs[i-1] <= BBS->lastseen) )
209 wc_printf("<a name=\"newmsgs\">");
210 wc_printf("** FIXME new msgs start here **<br>\n");
212 if (BBS->msgs[i] > 0L) {
213 read_message(WC->WBuf, HKEY("view_message"), BBS->msgs[i], NULL, &Mime);
218 else if ( (seq == 0) || (seq == 2) ) {
219 /* Display the selecto-bar with the page numbers */
221 wc_printf("<div class=\"moreprompt\">");
222 wc_printf(_("Go to page: "));
225 int last = ( (Stat->maxmsgs > 0) ? (BBS->num_msgs / Stat->maxmsgs) : 0 );
227 for (i=0; i<=last; ++i) {
232 || (i == BBS->requested_page)
234 ((BBS->requested_page - i) < RANGE)
235 && ((BBS->requested_page - i) > (0 - RANGE))
241 && (last - BBS->requested_page > RANGE)
243 wc_printf("... ");
245 if (i == BBS->requested_page) {
249 wc_printf("<a href=\"readfwd?page=%d\">", i);
250 wc_printf("<span class=\"moreprompt_link\">");
254 && (BBS->requested_page > (RANGE + 1))
256 wc_printf(_("First"));
260 && (last - BBS->requested_page > RANGE)
262 wc_printf(_("Last"));
265 wc_printf("%d", i + 1); // change to one-based for display
267 if (i == BBS->requested_page) {
271 wc_printf("</span>");
276 && (BBS->requested_page > (RANGE + 1))
278 wc_printf(" ...");
285 wc_printf("</div>\n");
293 int bbsview_Cleanup(void **ViewSpecific)
295 struct bbsview *BBS = (struct bbsview *) *ViewSpecific;
297 if (BBS->alloc_msgs != 0) {
308 InitModule_BBSVIEWRENDERERS
311 RegisterReadLoopHandlerset(
313 bbsview_GetParamsGetServerCall,
316 bbsview_LoadMsgFromServer,
317 bbsview_RenderView_or_Tail,