webcit/sitemap.c

   1
   2 /*
   3  * XML sitemap generator
   4  *
   5  * Copyright (c) 2010-2021 by the citadel.org team
   6  *
   7  * This program is open source software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License, version 3.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #include "webcit.h"
  17 #include "webserver.h"
  18
  19
  20 /*
  21  * XML sitemap generator -- go through the message list for a BBS room
  22  */
  23 void sitemap_do_bbs(void) {
  24         int num_msgs = 0;
  25         int i;
  26         SharedMessageStatus Stat;
  27         message_summary *Msg = NULL;
  28
  29         memset(&Stat, 0, sizeof Stat);
  30         Stat.maxload = INT_MAX;
  31         Stat.lowest_found = (-1);
  32         Stat.highest_found = (-1);
  33         num_msgs = load_msg_ptrs("MSGS ALL", NULL, NULL, &Stat, NULL, NULL, NULL, NULL, 0);
  34         if (num_msgs < 1)
  35                 return;
  36
  37         for (i = 0; i < num_msgs; i += 20) {
  38                 Msg = GetMessagePtrAt(i, WC->summ);
  39                 if (Msg != NULL) {
  40                         wc_printf("<url><loc>%s/readfwd", ChrPtr(site_prefix));
  41                         wc_printf("?go=");
  42                         urlescputs(ChrPtr(WC->CurRoom.name));
  43                         wc_printf("?start_reading_at=%ld", Msg->msgnum);
  44                         wc_printf("</loc></url>\r\n");
  45                 }
  46         }
  47 }
  48
  49
  50 /*
  51  * XML sitemap generator -- go through the message list for a wiki room
  52  */
  53 void sitemap_do_wiki(void) {
  54         int num_msgs = 0;
  55         int i;
  56         SharedMessageStatus Stat;
  57         message_summary *Msg = NULL;
  58         char buf[256];
  59
  60         memset(&Stat, 0, sizeof Stat);
  61         Stat.maxload = INT_MAX;
  62         Stat.lowest_found = (-1);
  63         Stat.highest_found = (-1);
  64         num_msgs = load_msg_ptrs("MSGS ALL", NULL, NULL, &Stat, NULL, NULL, NULL, NULL, 0);
  65         if (num_msgs < 1)
  66                 return;
  67
  68         for (i = 0; i < num_msgs; ++i) {
  69                 Msg = GetMessagePtrAt(i, WC->summ);
  70                 if (Msg != NULL) {
  71
  72                         serv_printf("MSG0 %ld|3", Msg->msgnum);
  73                         serv_getln(buf, sizeof buf);
  74                         if (buf[0] == '1')
  75                                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
  76                                         if ((!strncasecmp(buf, "exti=", 5))
  77                                             && (!bmstrcasestr(buf, "_HISTORY_"))
  78                                             ) {
  79                                                 wc_printf("<url><loc>%s/wiki", ChrPtr(site_prefix));
  80                                                 wc_printf("?go=");
  81                                                 urlescputs(ChrPtr(WC->CurRoom.name));
  82                                                 wc_printf("?page=%s", &buf[5]);
  83                                                 wc_printf("</loc></url>\r\n");
  84                                         }
  85                                 }
  86                 }
  87         }
  88 }
  89
  90
  91 struct sitemap_room_list {
  92         struct sitemap_room_list *next;
  93         StrBuf *roomname;
  94         int defview;
  95 };
  96
  97
  98 /*
  99  * Load the room list for the sitemap
 100  */
 101 struct sitemap_room_list *sitemap_load_roomlist(void) {
 102         char buf[SIZ];
 103         char roomname_plain[SIZ];
 104         struct sitemap_room_list *roomlist = NULL;
 105
 106         serv_puts("LKRA");
 107         serv_getln(buf, sizeof buf);
 108         if (buf[0] == '1')
 109                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 110                         struct sitemap_room_list *ptr = malloc(sizeof(struct sitemap_room_list));
 111                         extract_token(roomname_plain, buf, 0, '|', sizeof roomname_plain);
 112                         ptr->roomname = NewStrBufPlain(roomname_plain, -1);
 113                         ptr->defview = extract_int(buf, 6);
 114                         ptr->next = roomlist;
 115                         roomlist = ptr;
 116                 }
 117
 118         return (roomlist);
 119 }
 120
 121 extern void sitemap_do_blog(void);
 122
 123 /*
 124  * Entry point for RSS feed generator
 125  */
 126 void sitemap(void) {
 127         struct sitemap_room_list *roomlist = NULL;
 128         output_headers(0, 0, 0, 0, 1, 0);
 129         hprintf("Content-type: text/xml\r\n");
 130         hprintf("Server: %s / %s\r\n" "Connection: close\r\n", PACKAGE_STRING, ChrPtr(WC->serv_info->serv_software)
 131             );
 132         begin_burst();
 133
 134         wc_printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n");
 135         wc_printf("<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\">\r\n");
 136
 137         roomlist = sitemap_load_roomlist();
 138
 139         while (roomlist != NULL) {
 140                 struct sitemap_room_list *ptr;
 141
 142                 gotoroom(roomlist->roomname);
 143
 144                 /* Output the messages in this room only if it's a room type we can make sense of */
 145                 switch (roomlist->defview) {
 146                 case VIEW_BBS:
 147                         sitemap_do_bbs();
 148                         break;
 149                 case VIEW_WIKI:
 150                         sitemap_do_wiki();
 151                         break;
 152                 case VIEW_BLOG:
 153                         sitemap_do_blog();
 154                         break;
 155                 default:
 156                         break;
 157                 }
 158
 159                 ptr = roomlist;
 160                 roomlist = roomlist->next;
 161                 FreeStrBuf(&ptr->roomname);
 162                 free(ptr);
 163         }
 164
 165         wc_printf("</urlset>\r\n");
 166         wDumpContent(0);
 167 }
 168
 169
 170 void InitModule_SITEMAP(void) {
 171         WebcitAddUrlHandler(HKEY("sitemap"), "", 0, sitemap, ANONYMOUS | COOKIEUNNEEDED);
 172         WebcitAddUrlHandler(HKEY("sitemap.xml"), "", 0, sitemap, ANONYMOUS | COOKIEUNNEEDED);
 173 }