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_message"), 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\">%d comments</a>", bp->num_msgs - 1);
59 else if (bp->num_msgs < 2) {
60 wc_printf("dere r no comments here!<br>\n");
63 wc_printf("<a name=\"comments\"></a>\n");
64 wc_printf("%d comments<br>\n", bp->num_msgs - 1);
65 wc_printf("<blockquote>");
66 for (i=1; i<bp->num_msgs; ++i) {
67 read_message(WC->WBuf, HKEY("view_message"), bp->msgs[i], NULL, &Mime);
69 wc_printf("</blockquote>");
74 if (bp->alloc_msgs > 0) {
82 * Data which gets returned from a call to blogview_learn_thread_references()
91 * Entry point for message read operations.
93 int blogview_GetParamsGetServerCall(SharedMessageStatus *Stat,
99 HashList *BLOG = NewHash(1, NULL);
100 *ViewSpecific = BLOG;
102 Stat->startmsg = (-1); /* not used here */
103 Stat->sortit = 1; /* not used here */
104 Stat->num_displayed = DEFAULT_MAXMSGS; /* not used here */
105 if (Stat->maxmsgs == 0) Stat->maxmsgs = DEFAULT_MAXMSGS;
107 /* perform a "read all" call to fetch the message list -- we'll cut it down later */
108 rlid[2].cmd(cmd, len);
115 * Given a 'struct blogpost' containing a msgnum, populate the id
116 * and refs fields by fetching them from the Citadel server
118 struct bltr blogview_learn_thread_references(long msgnum)
122 struct bltr bltr = { 0, 0 } ;
125 serv_printf("MSG0 %ld|1", msgnum); /* top level citadel headers only */
126 StrBuf_ServGetln(Buf);
127 if (GetServerStatus(Buf, NULL) == 1) {
128 while (StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000")) {
129 if (!strncasecmp(ChrPtr(Buf), "msgn=", 5)) {
130 StrBufCutLeft(Buf, 5);
131 bltr.id = HashLittle(ChrPtr(Buf), StrLength(Buf));
133 else if (!strncasecmp(ChrPtr(Buf), "wefw=", 5)) {
134 StrBufCutLeft(Buf, 5); /* trim the field name */
135 StrBufExtract_token(r, Buf, 0, '|');
136 bltr.refs = HashLittle(ChrPtr(r), StrLength(r));
147 * This function is called for every message in the list.
149 int blogview_LoadMsgFromServer(SharedMessageStatus *Stat,
151 message_summary* Msg,
155 HashList *BLOG = (HashList *) *ViewSpecific;
157 struct blogpost *bp = NULL;
159 b = blogview_learn_thread_references(Msg->msgnum);
161 /* FIXME an optimization here -- one we ought to perform -- is to exit this
162 * function immediately if the viewer is only interested in a single post and
163 * that message ID is neither the id nor the refs. Actually, that might *be*
164 * the way to display only a single message (with or without comments).
168 bp = malloc(sizeof(struct blogpost));
169 if (!bp) return(200);
170 memset(bp, 0, sizeof (struct blogpost));
171 bp->top_level_id = b.id;
172 Put(BLOG, (const char *)&b.id, sizeof(b.id), bp,
173 (DeleteHashDataFunc)blogpost_render_and_destroy);
176 GetHash(BLOG, (const char *)&b.refs , sizeof(b.refs), (void *)&bp);
180 * Now we have a 'struct blogpost' to which we can add a message. It's either the
181 * blog post itself or a comment attached to it; either way, the code is the same from
185 if (bp->alloc_msgs == 0) {
186 bp->alloc_msgs = 1000;
187 bp->msgs = malloc(bp->alloc_msgs * sizeof(long));
188 memset(bp->msgs, 0, (bp->alloc_msgs * sizeof(long)) );
190 if (bp->num_msgs >= bp->alloc_msgs) {
192 bp->msgs = realloc(bp->msgs, (bp->alloc_msgs * sizeof(long)));
193 memset(&bp->msgs[bp->num_msgs], 0,
194 ((bp->alloc_msgs - bp->num_msgs) * sizeof(long)) );
196 bp->msgs[bp->num_msgs++] = Msg->msgnum;
204 * Sort a list of 'struct blogpost' objects by newest-to-oldest msgnum.
206 int blogview_sortfunc(const void *s1, const void *s2) {
207 long *l1 = (long *)(s1);
208 long *l2 = (long *)(s2);
210 if (*l1 > *l2) return(-1);
211 if (*l1 < *l2) return(+1);
216 int blogview_render(SharedMessageStatus *Stat, void **ViewSpecific, long oper)
218 /*HashList *BLOG = (HashList *) *ViewSpecific;*/
221 * No code needed here -- we render during disposition.
222 * Maybe this is the location where we want to handle pretty permalinks.
229 int blogview_Cleanup(void **ViewSpecific)
231 HashList *BLOG = (HashList *) *ViewSpecific;
241 InitModule_BLOGVIEWRENDERERS
244 RegisterReadLoopHandlerset(
246 blogview_GetParamsGetServerCall,
249 blogview_LoadMsgFromServer,