2 * Blog view renderer module for WebCit
4 * Copyright (c) 1996-2011 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 */
34 char euid[BLOG_EUIDBUF_SIZE]; /* please do not change this to a StrBuf */
39 * Destructor for 'struct blogpost' which does the rendering first.
40 * By rendering from here, we eliminate the need for a separate iterator, although
41 * we might run into trouble when we get around to displaying newest-to-oldest...
43 void blogpost_render_and_destroy(struct blogpost *bp) {
48 p = atoi(BSTR("p")); /* are we looking for a specific post? */
49 WC->bptlid = bp->top_level_id;
51 if ( ((p == 0) || (p == bp->top_level_id)) && (bp->num_msgs > 0) ) {
52 /* Show the top level post */
53 read_message(WC->WBuf, HKEY("view_blog_post"), bp->msgs[0], NULL, &Mime);
56 /* Show the number of comments */
57 wc_printf("<a href=\"readfwd");
58 wc_printf("?p=%d", bp->top_level_id);
59 wc_printf("?euid="); urlescputs(bp->euid); /* FIXME not really */
60 wc_printf("?go="); urlescputs(ChrPtr(WC->CurRoom.name));
61 wc_printf("#comments\">");
62 wc_printf(_("%d comments"), bp->num_msgs - 1);
64 wc_printf("<br><br><br>\n");
66 else if (bp->num_msgs < 2) {
67 wc_printf(_("%d comments"), 0);
70 wc_printf("<a name=\"comments\"></a>\n");
71 wc_printf(_("%d comments"), bp->num_msgs - 1);
73 for (i=1; i<bp->num_msgs; ++i) {
74 read_message(WC->WBuf, HKEY("view_blog_comment"), bp->msgs[i], NULL, &Mime);
80 if (bp->alloc_msgs > 0) {
88 * Data which gets returned from a call to blogview_learn_thread_references()
93 char euid[BLOG_EUIDBUF_SIZE]; /* please do not change this to a StrBuf */
98 * Entry point for message read operations.
100 int blogview_GetParamsGetServerCall(SharedMessageStatus *Stat,
106 HashList *BLOG = NewHash(1, NULL);
107 *ViewSpecific = BLOG;
109 Stat->startmsg = (-1); /* not used here */
110 Stat->sortit = 1; /* not used here */
111 Stat->num_displayed = DEFAULT_MAXMSGS; /* not used here */
112 if (Stat->maxmsgs == 0) Stat->maxmsgs = DEFAULT_MAXMSGS;
114 /* perform a "read all" call to fetch the message list -- we'll cut it down later */
115 rlid[2].cmd(cmd, len);
122 * Given a 'struct blogpost' containing a msgnum, populate the id
123 * and refs fields by fetching them from the Citadel server
125 struct bltr blogview_learn_thread_references(long msgnum)
130 struct bltr bltr = { 0, 0, "" } ;
133 serv_printf("MSG0 %ld|1", msgnum); /* top level citadel headers only */
134 StrBuf_ServGetln(Buf);
135 if (GetServerStatus(Buf, NULL) == 1) {
136 while (len = StrBuf_ServGetln(Buf),
138 ((len != 3) || strcmp(ChrPtr(Buf), "000") )))
140 if (!strncasecmp(ChrPtr(Buf), "msgn=", 5)) {
141 StrBufCutLeft(Buf, 5);
142 bltr.id = HashLittle(ChrPtr(Buf), StrLength(Buf));
144 else if (!strncasecmp(ChrPtr(Buf), "wefw=", 5)) {
145 StrBufCutLeft(Buf, 5); /* trim the field name */
146 StrBufExtract_token(r, Buf, 0, '|');
147 bltr.refs = HashLittle(ChrPtr(r), StrLength(r));
149 else if (!strncasecmp(ChrPtr(Buf), "exti=", 5)) {
150 StrBufCutLeft(Buf, 5); /* trim the field name */
151 safestrncpy(bltr.euid, ChrPtr(Buf), sizeof(bltr.euid));
162 * This function is called for every message in the list.
164 int blogview_LoadMsgFromServer(SharedMessageStatus *Stat,
166 message_summary* Msg,
170 HashList *BLOG = (HashList *) *ViewSpecific;
172 struct blogpost *bp = NULL;
174 b = blogview_learn_thread_references(Msg->msgnum);
176 if (!IsEmptyStr(b.euid)) {
177 syslog(LOG_DEBUG, "\033[7m%s\033[0m", b.euid);
180 /* FIXME an optimization here -- one we ought to perform -- is to exit this
181 * function immediately if the viewer is only interested in a single post and
182 * that message ID is neither the id nor the refs. Actually, that might *be*
183 * the way to display only a single message (with or without comments).
187 bp = malloc(sizeof(struct blogpost));
188 if (!bp) return(200);
189 memset(bp, 0, sizeof (struct blogpost));
190 bp->top_level_id = b.id;
191 strcpy(bp->euid, b.euid);
192 Put(BLOG, (const char *)&b.id, sizeof(b.id), bp,
193 (DeleteHashDataFunc)blogpost_render_and_destroy);
196 GetHash(BLOG, (const char *)&b.refs , sizeof(b.refs), (void *)&bp);
200 * Now we have a 'struct blogpost' to which we can add a message. It's either the
201 * blog post itself or a comment attached to it; either way, the code is the same from
205 if (bp->alloc_msgs == 0) {
206 bp->alloc_msgs = 1000;
207 bp->msgs = malloc(bp->alloc_msgs * sizeof(long));
208 memset(bp->msgs, 0, (bp->alloc_msgs * sizeof(long)) );
210 if (bp->num_msgs >= bp->alloc_msgs) {
212 bp->msgs = realloc(bp->msgs, (bp->alloc_msgs * sizeof(long)));
213 memset(&bp->msgs[bp->num_msgs], 0,
214 ((bp->alloc_msgs - bp->num_msgs) * sizeof(long)) );
216 bp->msgs[bp->num_msgs++] = Msg->msgnum;
224 * Sort a list of 'struct blogpost' objects by newest-to-oldest msgnum.
226 int blogview_sortfunc(const void *s1, const void *s2) {
227 long *l1 = (long *)(s1);
228 long *l2 = (long *)(s2);
230 if (*l1 > *l2) return(-1);
231 if (*l1 < *l2) return(+1);
236 int blogview_render(SharedMessageStatus *Stat, void **ViewSpecific, long oper)
238 /*HashList *BLOG = (HashList *) *ViewSpecific;*/
241 * No code needed here -- we render during disposition.
242 * Maybe this is the location where we want to handle pretty permalinks.
249 int blogview_Cleanup(void **ViewSpecific)
251 HashList *BLOG = (HashList *) *ViewSpecific;
260 * Generate a permalink for a post
262 void tmplput_blog_permalink(StrBuf *Target, WCTemplputParams *TP) {
265 strcpy(perma, "/readfwd?go=");
266 urlesc(&perma[strlen(perma)], sizeof(perma)-strlen(perma), ChrPtr(WC->CurRoom.name));
267 snprintf(&perma[strlen(perma)], sizeof(perma)-strlen(perma), "?p=%d", WC->bptlid);
268 StrBufAppendPrintf(Target, "%s", perma);
273 InitModule_BLOGVIEWRENDERERS
276 RegisterReadLoopHandlerset(
278 blogview_GetParamsGetServerCall,
281 blogview_LoadMsgFromServer,
285 RegisterNamespace("BLOG:PERMALINK", 0, 0, tmplput_blog_permalink, NULL, CTX_NONE);