2 * Blog view renderer module for WebCit
4 * Copyright (c) 1996-2010 by the citadel.org team
6 * This program is open source software. You can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 3 of the
9 * License, or (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? */
48 WC->bptlid = bp->top_level_id;
50 if ( ((p == 0) || (p == bp->top_level_id)) && (bp->num_msgs > 0) ) {
51 /* Show the top level post */
52 read_message(WC->WBuf, HKEY("view_blog_post"), bp->msgs[0], NULL, &Mime);
55 /* Show the number of comments */
56 wc_printf("<a href=\"readfwd?p=%d?go=", bp->top_level_id);
57 urlescputs(ChrPtr(WC->CurRoom.name));
58 wc_printf("#comments\">");
59 wc_printf(_("%d comments"), bp->num_msgs - 1);
61 wc_printf("<br><br><br>\n");
63 else if (bp->num_msgs < 2) {
64 wc_printf(_("%d comments"), 0);
67 wc_printf("<a name=\"comments\"></a>\n");
68 wc_printf(_("%d comments"), bp->num_msgs - 1);
70 for (i=1; i<bp->num_msgs; ++i) {
71 read_message(WC->WBuf, HKEY("view_blog_comment"), bp->msgs[i], NULL, &Mime);
77 if (bp->alloc_msgs > 0) {
85 * Data which gets returned from a call to blogview_learn_thread_references()
95 * Entry point for message read operations.
97 int blogview_GetParamsGetServerCall(SharedMessageStatus *Stat,
103 HashList *BLOG = NewHash(1, NULL);
104 *ViewSpecific = BLOG;
106 Stat->startmsg = (-1); /* not used here */
107 Stat->sortit = 1; /* not used here */
108 Stat->num_displayed = DEFAULT_MAXMSGS; /* not used here */
109 if (Stat->maxmsgs == 0) Stat->maxmsgs = DEFAULT_MAXMSGS;
111 /* perform a "read all" call to fetch the message list -- we'll cut it down later */
112 rlid[2].cmd(cmd, len);
119 * Given a 'struct blogpost' containing a msgnum, populate the id
120 * and refs fields by fetching them from the Citadel server
122 struct bltr blogview_learn_thread_references(long msgnum)
127 struct bltr bltr = { 0, 0, NULL };
130 serv_printf("MSG0 %ld|1", msgnum); /* top level citadel headers only */
131 StrBuf_ServGetln(Buf);
132 if (GetServerStatus(Buf, NULL) == 1) {
133 while (len = StrBuf_ServGetln(Buf),
135 ((len != 3) || strcmp(ChrPtr(Buf), "000") )))
137 if (!strncasecmp(ChrPtr(Buf), "msgn=", 5)) {
138 StrBufCutLeft(Buf, 5);
139 bltr.id = HashLittle(ChrPtr(Buf), StrLength(Buf));
141 else if (!strncasecmp(ChrPtr(Buf), "wefw=", 5)) {
142 StrBufCutLeft(Buf, 5); /* trim the field name */
143 StrBufExtract_token(r, Buf, 0, '|');
144 bltr.refs = HashLittle(ChrPtr(r), StrLength(r));
146 else if (!strncasecmp(ChrPtr(Buf), "exti=", 5)) {
147 StrBufCutLeft(Buf, 5); /* trim the field name */
148 bltr.euid = NewStrBufDup(Buf);
159 * This function is called for every message in the list.
161 int blogview_LoadMsgFromServer(SharedMessageStatus *Stat,
163 message_summary* Msg,
167 HashList *BLOG = (HashList *) *ViewSpecific;
169 struct blogpost *bp = NULL;
171 b = blogview_learn_thread_references(Msg->msgnum);
173 if (b.euid != NULL) {
174 syslog(LOG_DEBUG, "\033[7m%s\033[0m", ChrPtr(b.euid));
178 /* FIXME an optimization here -- one we ought to perform -- is to exit this
179 * function immediately if the viewer is only interested in a single post and
180 * that message ID is neither the id nor the refs. Actually, that might *be*
181 * the way to display only a single message (with or without comments).
185 bp = malloc(sizeof(struct blogpost));
186 if (!bp) return(200);
187 memset(bp, 0, sizeof (struct blogpost));
188 bp->top_level_id = b.id;
189 Put(BLOG, (const char *)&b.id, sizeof(b.id), bp,
190 (DeleteHashDataFunc)blogpost_render_and_destroy);
193 GetHash(BLOG, (const char *)&b.refs , sizeof(b.refs), (void *)&bp);
197 * Now we have a 'struct blogpost' to which we can add a message. It's either the
198 * blog post itself or a comment attached to it; either way, the code is the same from
202 if (bp->alloc_msgs == 0) {
203 bp->alloc_msgs = 1000;
204 bp->msgs = malloc(bp->alloc_msgs * sizeof(long));
205 memset(bp->msgs, 0, (bp->alloc_msgs * sizeof(long)) );
207 if (bp->num_msgs >= bp->alloc_msgs) {
209 bp->msgs = realloc(bp->msgs, (bp->alloc_msgs * sizeof(long)));
210 memset(&bp->msgs[bp->num_msgs], 0,
211 ((bp->alloc_msgs - bp->num_msgs) * sizeof(long)) );
213 bp->msgs[bp->num_msgs++] = Msg->msgnum;
221 * Sort a list of 'struct blogpost' objects by newest-to-oldest msgnum.
223 int blogview_sortfunc(const void *s1, const void *s2) {
224 long *l1 = (long *)(s1);
225 long *l2 = (long *)(s2);
227 if (*l1 > *l2) return(-1);
228 if (*l1 < *l2) return(+1);
233 int blogview_render(SharedMessageStatus *Stat, void **ViewSpecific, long oper)
235 /*HashList *BLOG = (HashList *) *ViewSpecific;*/
238 * No code needed here -- we render during disposition.
239 * Maybe this is the location where we want to handle pretty permalinks.
246 int blogview_Cleanup(void **ViewSpecific)
248 HashList *BLOG = (HashList *) *ViewSpecific;
257 * Generate a permalink for a post
259 void tmplput_blog_permalink(StrBuf *Target, WCTemplputParams *TP) {
262 strcpy(perma, "/readfwd?go=");
263 urlesc(&perma[strlen(perma)], sizeof(perma)-strlen(perma), ChrPtr(WC->CurRoom.name));
264 snprintf(&perma[strlen(perma)], sizeof(perma)-strlen(perma), "?p=%d", WC->bptlid);
265 StrBufAppendPrintf(Target, "%s", perma);
270 InitModule_BLOGVIEWRENDERERS
273 RegisterReadLoopHandlerset(
275 blogview_GetParamsGetServerCall,
278 blogview_LoadMsgFromServer,
282 RegisterNamespace("BLOG:PERMALINK", 0, 0, tmplput_blog_permalink, NULL, CTX_NONE);