2 * Blog view renderer module for WebCit
4 * Copyright (c) 1996-2010 by the citadel.org team
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "webserver.h"
27 * Array type for a blog post. The first message is the post; the rest are comments
31 long *msgs; /* Array of msgnums for messages we are displaying */
32 int num_msgs; /* Number of msgnums stored in 'msgs' */
33 int alloc_msgs; /* Currently allocated size of array */
38 * Destructor for 'struct blogpost' which does the rendering first.
39 * By rendering from here, we eliminate the need for a separate iterator, although
40 * we might run into trouble when we get around to displaying newest-to-oldest...
42 void blogpost_render_and_destroy(struct blogpost *bp) {
47 p = atoi(BSTR("p")); /* are we looking for a specific post? */
49 if ( ((p == 0) || (p == bp->top_level_id)) && (bp->num_msgs > 0) ) {
50 /* Show the top level post */
51 read_message(WC->WBuf, HKEY("view_blog_post"), bp->msgs[0], NULL, &Mime);
54 /* Show the number of comments */
55 wc_printf("<a href=\"readfwd?p=%d?gotofirst=", bp->top_level_id);
56 urlescputs(ChrPtr(WC->CurRoom.name));
57 wc_printf("#comments\">");
58 wc_printf(_("%d comments"), bp->num_msgs - 1);
61 else if (bp->num_msgs < 2) {
62 wc_printf(_("%d comments"), 0);
65 wc_printf("<a name=\"comments\"></a>\n");
66 wc_printf(_("%d comments"), bp->num_msgs - 1);
68 for (i=1; i<bp->num_msgs; ++i) {
69 read_message(WC->WBuf, HKEY("view_blog_comment"), bp->msgs[i], NULL, &Mime);
75 if (bp->alloc_msgs > 0) {
83 * Data which gets returned from a call to blogview_learn_thread_references()
92 * Entry point for message read operations.
94 int blogview_GetParamsGetServerCall(SharedMessageStatus *Stat,
100 HashList *BLOG = NewHash(1, NULL);
101 *ViewSpecific = BLOG;
103 Stat->startmsg = (-1); /* not used here */
104 Stat->sortit = 1; /* not used here */
105 Stat->num_displayed = DEFAULT_MAXMSGS; /* not used here */
106 if (Stat->maxmsgs == 0) Stat->maxmsgs = DEFAULT_MAXMSGS;
108 /* perform a "read all" call to fetch the message list -- we'll cut it down later */
109 rlid[2].cmd(cmd, len);
116 * Given a 'struct blogpost' containing a msgnum, populate the id
117 * and refs fields by fetching them from the Citadel server
119 struct bltr blogview_learn_thread_references(long msgnum)
123 struct bltr bltr = { 0, 0 } ;
126 serv_printf("MSG0 %ld|1", msgnum); /* top level citadel headers only */
127 StrBuf_ServGetln(Buf);
128 if (GetServerStatus(Buf, NULL) == 1) {
129 while (StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000")) {
130 if (!strncasecmp(ChrPtr(Buf), "msgn=", 5)) {
131 StrBufCutLeft(Buf, 5);
132 bltr.id = HashLittle(ChrPtr(Buf), StrLength(Buf));
134 else if (!strncasecmp(ChrPtr(Buf), "wefw=", 5)) {
135 StrBufCutLeft(Buf, 5); /* trim the field name */
136 StrBufExtract_token(r, Buf, 0, '|');
137 bltr.refs = HashLittle(ChrPtr(r), StrLength(r));
148 * This function is called for every message in the list.
150 int blogview_LoadMsgFromServer(SharedMessageStatus *Stat,
152 message_summary* Msg,
156 HashList *BLOG = (HashList *) *ViewSpecific;
158 struct blogpost *bp = NULL;
160 b = blogview_learn_thread_references(Msg->msgnum);
162 /* FIXME an optimization here -- one we ought to perform -- is to exit this
163 * function immediately if the viewer is only interested in a single post and
164 * that message ID is neither the id nor the refs. Actually, that might *be*
165 * the way to display only a single message (with or without comments).
169 bp = malloc(sizeof(struct blogpost));
170 if (!bp) return(200);
171 memset(bp, 0, sizeof (struct blogpost));
172 bp->top_level_id = b.id;
173 Put(BLOG, (const char *)&b.id, sizeof(b.id), bp,
174 (DeleteHashDataFunc)blogpost_render_and_destroy);
177 GetHash(BLOG, (const char *)&b.refs , sizeof(b.refs), (void *)&bp);
181 * Now we have a 'struct blogpost' to which we can add a message. It's either the
182 * blog post itself or a comment attached to it; either way, the code is the same from
186 if (bp->alloc_msgs == 0) {
187 bp->alloc_msgs = 1000;
188 bp->msgs = malloc(bp->alloc_msgs * sizeof(long));
189 memset(bp->msgs, 0, (bp->alloc_msgs * sizeof(long)) );
191 if (bp->num_msgs >= bp->alloc_msgs) {
193 bp->msgs = realloc(bp->msgs, (bp->alloc_msgs * sizeof(long)));
194 memset(&bp->msgs[bp->num_msgs], 0,
195 ((bp->alloc_msgs - bp->num_msgs) * sizeof(long)) );
197 bp->msgs[bp->num_msgs++] = Msg->msgnum;
205 * Sort a list of 'struct blogpost' objects by newest-to-oldest msgnum.
207 int blogview_sortfunc(const void *s1, const void *s2) {
208 long *l1 = (long *)(s1);
209 long *l2 = (long *)(s2);
211 if (*l1 > *l2) return(-1);
212 if (*l1 < *l2) return(+1);
217 int blogview_render(SharedMessageStatus *Stat, void **ViewSpecific, long oper)
219 /*HashList *BLOG = (HashList *) *ViewSpecific;*/
222 * No code needed here -- we render during disposition.
223 * Maybe this is the location where we want to handle pretty permalinks.
230 int blogview_Cleanup(void **ViewSpecific)
232 HashList *BLOG = (HashList *) *ViewSpecific;
242 InitModule_BLOGVIEWRENDERERS
245 RegisterReadLoopHandlerset(
247 blogview_GetParamsGetServerCall,
250 blogview_LoadMsgFromServer,