webcit/wiki.c

   1 /*
   2  * $Id$
   3  *
   4  * Functions pertaining to rooms with a wiki view
   5  */
   6
   7 #include "webcit.h"
   8 #include "groupdav.h"
   9
  10 /*
  11  * Convert a string to something suitable as a wiki index
  12  */
  13 void str_wiki_index(char *s)
  14 {
  15         int i;
  16
  17         if (s == NULL) return;
  18
  19         /* First remove all non-alphanumeric characters */
  20         for (i=0; i<strlen(s); ++i) {
  21                 if (!isalnum(s[i])) {
  22                         strcpy(&s[i], &s[i+1]);
  23                 }
  24         }
  25
  26         /* Then make everything lower case */
  27         for (i=0; i<strlen(s); ++i) {
  28                 s[i] = tolower(s[i]);
  29         }
  30 }
  31
  32 /*
  33  * Display a specific page from a wiki room
  34  */
  35 void display_wiki_page_backend(const StrBuf *roomname, char *pagename)
  36 {
  37         const StrBuf *Mime;
  38         long msgnum = (-1L);
  39
  40         str_wiki_index(pagename);
  41
  42         if (StrLength(roomname) > 0) {
  43
  44                 /* If we're not in the correct room, try going there. */
  45                 if (strcasecmp(ChrPtr(roomname), ChrPtr(WC->wc_roomname))) {
  46                         gotoroom(roomname);
  47                 }
  48
  49                 /* If we're still not in the correct room, it doesn't exist. */
  50                 if (strcasecmp(ChrPtr(roomname), ChrPtr(WC->wc_roomname))) {
  51                         wc_printf(_("There is no room called '%s'."), ChrPtr(roomname));
  52                         return;
  53                 }
  54
  55         }
  56
  57         if (WC->wc_view != VIEW_WIKI) {
  58                 wc_printf(_("'%s' is not a Wiki room."), ChrPtr(roomname));
  59                 return;
  60         }
  61
  62         if (IsEmptyStr(pagename)) {
  63                 strcpy(pagename, "home");
  64         }
  65
  66         /* Found it!  Now read it. */
  67         msgnum = locate_message_by_uid(pagename);
  68         if (msgnum >= 0L) {
  69                 read_message(WC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
  70                 return;
  71         }
  72
  73         wc_printf("<br /><br />"
  74                 "<div align=\"center\">"
  75                 "<table border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"10\">"
  76                 "<tr><td align=\"center\">"
  77         );
  78         wc_printf("<br><b>");
  79         wc_printf(_("There is no page called '%s' here."), pagename);
  80         wc_printf("</b><br><br>");
  81         wc_printf(_("Select the 'Edit this page' link in the room banner "
  82                 "if you would like to create this page."));
  83         wc_printf("<br><br>");
  84         wc_printf("</td></tr></table></div>\n");
  85 }
  86
  87
  88 /*
  89  * Display a specific page from a wiki room
  90  */
  91 void display_wiki_page(void)
  92 {
  93         const StrBuf *roomname;
  94         char pagename[128];
  95
  96         output_headers(1, 1, 1, 0, 0, 0);
  97         roomname = sbstr("room");
  98         safestrncpy(pagename, bstr("page"), sizeof pagename);
  99         display_wiki_page_backend(roomname, pagename);
 100         wDumpContent(1);
 101 }
 102
 103
 104 /*
 105  * Display the revision history for a wiki page (template callback)
 106  */
 107 void tmplput_display_wiki_history(StrBuf *Target, WCTemplputParams *TP)
 108 {
 109         const StrBuf *roomname;
 110         char pagename[128];
 111         StrBuf *Buf;
 112
 113         roomname = sbstr("room");
 114         safestrncpy(pagename, bstr("page"), sizeof pagename);
 115         str_wiki_index(pagename);
 116
 117         if (StrLength(roomname) > 0) {
 118
 119                 /* If we're not in the correct room, try going there. */
 120                 if (strcasecmp(ChrPtr(roomname), ChrPtr(WC->wc_roomname))) {
 121                         gotoroom(roomname);
 122                 }
 123
 124                 /* If we're still not in the correct room, it doesn't exist. */
 125                 if (strcasecmp(ChrPtr(roomname), ChrPtr(WC->wc_roomname))) {
 126                         wc_printf(_("There is no room called '%s'."), ChrPtr(roomname));
 127                         return;
 128                 }
 129
 130         }
 131
 132         serv_printf("WIKI history|%s", pagename);
 133         Buf = NewStrBuf();
 134         StrBuf_ServGetln(Buf);
 135         if (GetServerStatus(Buf, NULL) == 1) {
 136                 while(StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000")) {
 137                         wc_printf("<tt>%s</tt><br>\n", ChrPtr(Buf));
 138                 }
 139         }
 140         else {
 141                 wc_printf("%s", ChrPtr(Buf));
 142         }
 143
 144         FreeStrBuf(&Buf);
 145 }
 146
 147
 148 /*
 149  * Display the revision history for a wiki page
 150  */
 151 void display_wiki_history(void)
 152 {
 153         output_headers(1, 1, 1, 0, 0, 0);
 154         do_template("wiki_history", NULL);
 155         wDumpContent(1);
 156 }
 157
 158
 159 int wiki_Cleanup(void **ViewSpecific)
 160 {
 161         char pagename[5];
 162         safestrncpy(pagename, "home", sizeof pagename);
 163         display_wiki_page_backend(WC->wc_roomname, pagename);
 164         wDumpContent(1);
 165         return 0;
 166 }
 167
 168 void
 169 InitModule_WIKI
 170 (void)
 171 {
 172         RegisterReadLoopHandlerset(
 173                 VIEW_WIKI,
 174                 NULL,
 175                 NULL,
 176                 NULL,
 177                 NULL,
 178                 wiki_Cleanup
 179         );
 180
 181         WebcitAddUrlHandler(HKEY("wiki"), "", 0, display_wiki_page, 0);
 182         WebcitAddUrlHandler(HKEY("wiki_history"), "", 0, display_wiki_history, 0);
 183         RegisterNamespace("WIKI:DISPLAYHISTORY", 0, 0, tmplput_display_wiki_history, NULL, CTX_NONE);
 184 }