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  * "rev" may be set to an empty string to display the current version.
  36  */
  37 void display_wiki_page_backend(const StrBuf *roomname, char *pagename, char *rev)
  38 {
  39         const StrBuf *Mime;
  40         long msgnum = (-1L);
  41
  42         str_wiki_index(pagename);
  43
  44         if (StrLength(roomname) > 0) {
  45
  46                 /* If we're not in the correct room, try going there. */
  47                 if (strcasecmp(ChrPtr(roomname), ChrPtr(WC->wc_roomname))) {
  48                         gotoroom(roomname);
  49                 }
  50
  51                 /* If we're still not in the correct room, it doesn't exist. */
  52                 if (strcasecmp(ChrPtr(roomname), ChrPtr(WC->wc_roomname))) {
  53                         wc_printf(_("There is no room called '%s'."), ChrPtr(roomname));
  54                         return;
  55                 }
  56
  57         }
  58
  59         if (WC->wc_view != VIEW_WIKI) {
  60                 wc_printf(_("'%s' is not a Wiki room."), ChrPtr(roomname));
  61                 return;
  62         }
  63
  64         if (IsEmptyStr(pagename)) {
  65                 strcpy(pagename, "home");
  66         }
  67
  68         /* Found it!  Now read it.   FIXME this is where we have to add the ability to read an old rev */
  69         msgnum = locate_message_by_uid(pagename);
  70         if (msgnum >= 0L) {
  71                 read_message(WC->WBuf, HKEY("view_message"), msgnum, NULL, &Mime);
  72                 return;
  73         }
  74
  75         wc_printf("<br /><br />"
  76                 "<div align=\"center\">"
  77                 "<table border=\"0\" bgcolor=\"#ffffff\" cellpadding=\"10\">"
  78                 "<tr><td align=\"center\">"
  79         );
  80         wc_printf("<br><b>");
  81         wc_printf(_("There is no page called '%s' here."), pagename);
  82         wc_printf("</b><br><br>");
  83         wc_printf(_("Select the 'Edit this page' link in the room banner "
  84                 "if you would like to create this page."));
  85         wc_printf("<br><br>");
  86         wc_printf("</td></tr></table></div>\n");
  87 }
  88
  89
  90 /*
  91  * Display a specific page from a wiki room
  92  */
  93 void display_wiki_page(void)
  94 {
  95         const StrBuf *roomname;
  96         char pagename[128];
  97         char rev[128];
  98
  99         output_headers(1, 1, 1, 0, 0, 0);
 100         roomname = sbstr("room");
 101         safestrncpy(pagename, bstr("page"), sizeof pagename);
 102         safestrncpy(rev, bstr("rev"), sizeof rev);
 103         display_wiki_page_backend(roomname, pagename, rev);
 104         wDumpContent(1);
 105 }
 106
 107
 108 /*
 109  * Display the revision history for a wiki page (template callback)
 110  */
 111 void tmplput_display_wiki_history(StrBuf *Target, WCTemplputParams *TP)
 112 {
 113         const StrBuf *roomname;
 114         char pagename[128];
 115         StrBuf *Buf;
 116         int row = 0;
 117
 118         roomname = sbstr("room");
 119         safestrncpy(pagename, bstr("page"), sizeof pagename);
 120         str_wiki_index(pagename);
 121
 122         if (StrLength(roomname) > 0) {
 123
 124                 /* If we're not in the correct room, try going there. */
 125                 if (strcasecmp(ChrPtr(roomname), ChrPtr(WC->wc_roomname))) {
 126                         gotoroom(roomname);
 127                 }
 128
 129                 /* If we're still not in the correct room, it doesn't exist. */
 130                 if (strcasecmp(ChrPtr(roomname), ChrPtr(WC->wc_roomname))) {
 131                         wc_printf(_("There is no room called '%s'."), ChrPtr(roomname));
 132                         return;
 133                 }
 134
 135         }
 136
 137         serv_printf("WIKI history|%s", pagename);
 138         Buf = NewStrBuf();
 139         StrBuf_ServGetln(Buf);
 140         if (GetServerStatus(Buf, NULL) == 1) {
 141
 142                 time_t rev_date;
 143                 char rev_date_displayed[64];
 144                 StrBuf *rev_uuid = NewStrBuf();
 145                 StrBuf *author = NewStrBuf();
 146                 StrBuf *node = NewStrBuf();
 147
 148                 wc_printf("<div class=\"fix_scrollbar_bug\">"
 149                         "<table class=\"wiki_history_background\">"
 150                 );
 151
 152                 wc_printf("<th>%s</th>", _("Date"));
 153                 wc_printf("<th>%s</th>", _("Author"));
 154
 155                 while(StrBuf_ServGetln(Buf), strcmp(ChrPtr(Buf), "000")) {
 156
 157                         StrBufExtract_token(rev_uuid, Buf, 0, '|');
 158                         rev_date = extract_long(ChrPtr(Buf), 1);
 159                         webcit_fmt_date(rev_date_displayed, sizeof rev_date_displayed, rev_date, DATEFMT_FULL);
 160                         StrBufExtract_token(author, Buf, 2, '|');
 161                         StrBufExtract_token(node, Buf, 3, '|');
 162
 163                         wc_printf("<tr bgcolor=\"%s\">", (row ? "#FFFFFF" : "#DDDDDD"));
 164                         row = 1 - row;
 165                         wc_printf("<td>%s</td><td>", rev_date_displayed);
 166
 167                         if (!strcasecmp(ChrPtr(node), (char *)WC->serv_info->serv_nodename)) {
 168                                 escputs(ChrPtr(author));
 169                                 wc_printf(" @ ");
 170                                 escputs(ChrPtr(node));
 171                         }
 172                         else {
 173                                 wc_printf("<a href=\"showuser?who=");
 174                                 urlescputs(ChrPtr(author));
 175                                 wc_printf("\">");
 176                                 escputs(ChrPtr(author));
 177                                 wc_printf("</a>");
 178                         }
 179
 180                         wc_printf("</td><td><a href=\"wiki?page=%s?rev=%s\">%s</a></td>",
 181                                 bstr("page"),
 182                                 ChrPtr(rev_uuid),
 183                                 _("(show)")
 184                         );
 185                         wc_printf("</td><td><a href=\"wiki_revert?page=%s?rev=%s\">%s</a></td>",
 186                                 bstr("page"),
 187                                 ChrPtr(rev_uuid),
 188                                 _("(revert)")
 189                         );
 190                         wc_printf("</tr>\n");
 191                 }
 192
 193                 wc_printf("</table>\n");
 194                 FreeStrBuf(&author);
 195                 FreeStrBuf(&node);
 196                 FreeStrBuf(&rev_uuid);
 197         }
 198         else {
 199                 wc_printf("%s", ChrPtr(Buf));
 200         }
 201
 202         FreeStrBuf(&Buf);
 203 }
 204
 205
 206
 207 /*
 208  * Display the revision history for a wiki page
 209  */
 210 void display_wiki_history(void)
 211 {
 212         output_headers(1, 1, 1, 0, 0, 0);
 213         do_template("wiki_history", NULL);
 214         wDumpContent(1);
 215 }
 216
 217
 218 int wiki_Cleanup(void **ViewSpecific)
 219 {
 220         char pagename[5];
 221         safestrncpy(pagename, "home", sizeof pagename);
 222         display_wiki_page_backend(WC->wc_roomname, pagename, "");
 223         wDumpContent(1);
 224         return 0;
 225 }
 226
 227 void
 228 InitModule_WIKI
 229 (void)
 230 {
 231         RegisterReadLoopHandlerset(
 232                 VIEW_WIKI,
 233                 NULL,
 234                 NULL,
 235                 NULL,
 236                 NULL,
 237                 wiki_Cleanup
 238         );
 239
 240         WebcitAddUrlHandler(HKEY("wiki"), "", 0, display_wiki_page, 0);
 241         WebcitAddUrlHandler(HKEY("wiki_history"), "", 0, display_wiki_history, 0);
 242         RegisterNamespace("WIKI:DISPLAYHISTORY", 0, 0, tmplput_display_wiki_history, NULL, CTX_NONE);
 243 }