webcit/who.c

   1 /*
   2  * $Id$
   3  *
   4  * Display a list of all users currently logged on to the Citadel server.
   5  */
   6
   7 #include <ctype.h>
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10 #include <stdio.h>
  11 #include <fcntl.h>
  12 #include <signal.h>
  13 #include <sys/types.h>
  14 #include <sys/wait.h>
  15 #include <sys/socket.h>
  16 #include <sys/time.h>
  17 #include <limits.h>
  18 #include <netinet/in.h>
  19 #include <netdb.h>
  20 #include <string.h>
  21 #include <pwd.h>
  22 #include <errno.h>
  23 #include <stdarg.h>
  24 #include <pthread.h>
  25 #include <signal.h>
  26 #include "webcit.h"
  27
  28
  29
  30 /*
  31  * Display inner div of Wholist
  32  */
  33 void who_inner_div(void) {
  34         char buf[SIZ], user[SIZ], room[SIZ], host[SIZ],
  35                 realroom[SIZ], realhost[SIZ];
  36         int sess;
  37         time_t last_activity;
  38         time_t now;
  39         int bg = 0;
  40
  41         wprintf("<table border=0 cellspacing=0 width=100%% bgcolor=\"#FFFFFF\">"
  42                 "<tr>\n");
  43         wprintf("<TH COLSPAN=3>&nbsp;</TH>\n");
  44         wprintf("<TH>User Name</TH>\n");
  45         wprintf("<TH>Room</TH>");
  46         wprintf("<TH>From host</TH>\n</TR>\n");
  47
  48         serv_puts("TIME");
  49         serv_getln(buf, sizeof buf);
  50         if (buf[0] == '2') {
  51                 now = extract_long(&buf[4], 0);
  52         }
  53         else {
  54                 now = time(NULL);
  55         }
  56
  57         serv_puts("RWHO");
  58         serv_getln(buf, sizeof buf);
  59         if (buf[0] == '1') {
  60                 while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
  61                         sess = extract_int(buf, 0);
  62                         extract_token(user, buf, 1, '|', sizeof user);
  63                         extract_token(room, buf, 2, '|', sizeof room);
  64                         extract_token(host, buf, 3, '|', sizeof host);
  65                         extract_token(realroom, buf, 9, '|', sizeof realroom);
  66                         extract_token(realhost, buf, 10, '|', sizeof realhost);
  67                         last_activity = extract_long(buf, 5);
  68
  69                         bg = 1 - bg;
  70                         wprintf("<TR BGCOLOR=\"#%s\">",
  71                                 (bg ? "DDDDDD" : "FFFFFF")
  72                         );
  73
  74
  75                         wprintf("<td>");
  76                         if ((WC->is_aide) &&
  77                             (sess != WC->ctdl_pid)) {
  78                                 wprintf(" <A HREF=\"/terminate_session&which_session=%d&session_owner=", sess);
  79                                 urlescputs(user);
  80                                 wprintf("\" onClick=\"return ConfirmKill();\" "
  81                                 ">[kill]</A>");
  82                         }
  83                         if (sess == WC->ctdl_pid) {
  84                                 wprintf(" <A HREF=\"/edit_me\" "
  85                                         ">[edit]</A>");
  86                         }
  87                         wprintf("</TD>");
  88
  89                         /* (link to page this user) */
  90                         wprintf("<TD><A HREF=\"/display_page?recp=");
  91                         urlescputs(user);
  92                         wprintf("\">"
  93                                 "<IMG ALIGN=MIDDLE "
  94                                 "SRC=\"/static/citadelchat_24x.gif\" "
  95                                 "ALT=\"(p)\""
  96                                 " BORDER=0></A>&nbsp;");
  97                         wprintf("</TD>");
  98
  99                         /* (idle flag) */
 100                         wprintf("<TD>");
 101                         if ((now - last_activity) > 900L) {
 102                                 wprintf("&nbsp;"
 103                                         "<IMG ALIGN=MIDDLE "
 104                                         "SRC=\"/static/inactiveuser_24x.gif\" "
 105                                         "ALT=\"[idle]\" BORDER=0>");
 106                         }
 107                         else {
 108                                 wprintf("&nbsp;"
 109                                         "<IMG ALIGN=MIDDLE "
 110                                         "SRC=\"/static/activeuser_24x.gif\" "
 111                                         "ALT=\"[active]\" BORDER=0>");
 112                         }
 113                         wprintf("</TD>\n\t<TD>");
 114
 115
 116
 117                         /* username (link to user bio/photo page) */
 118                         wprintf("<A HREF=\"/showuser&who=");
 119                         urlescputs(user);
 120                         wprintf("\">");
 121                         escputs(user);
 122                         wprintf("</A>");
 123
 124                         /* room */
 125                         wprintf("</TD>\n\t<TD>");
 126                         escputs(room);
 127                         if (strlen(realroom) > 0) {
 128                                 wprintf("<br /><I>");
 129                                 escputs(realroom);
 130                                 wprintf("</I>");
 131                         }
 132                         wprintf("</TD>\n\t<TD>");
 133
 134                         /* hostname */
 135                         escputs(host);
 136                         if (strlen(realhost) > 0) {
 137                                 wprintf("<br /><I>");
 138                                 escputs(realhost);
 139                                 wprintf("</I>");
 140                         }
 141                         wprintf("</TD>\n</TR>");
 142                 }
 143         }
 144         wprintf("</TABLE>");
 145 }
 146
 147
 148
 149 /*
 150  * who is on?
 151  */
 152 void who(void)
 153 {
 154         output_headers(1, 1, 2, 0, 1, 0, 0);
 155
 156         wprintf("<script type=\"text/javascript\">\n"
 157                 "function ConfirmKill() { \n"
 158                 "return confirm('Do you really want to kill this session?');\n"
 159                 "}\n"
 160                 "</script>\n"
 161         );
 162
 163         wprintf("<div id=\"banner\">\n");
 164         wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>");
 165         wprintf("<IMG SRC=\"/static/usermanag_48x.gif\" ALT=\" \" ALIGN=MIDDLE>");
 166         wprintf("<SPAN CLASS=\"titlebar\">&nbsp;Users currently on ");
 167         escputs(serv_info.serv_humannode);
 168         wprintf("</SPAN></TD><TD ALIGN=RIGHT>");
 169         offer_start_page();
 170         wprintf("</TD></TR></TABLE>\n");
 171         wprintf("</div>\n");
 172
 173         wprintf("<div id=\"content\">\n");
 174
 175         wprintf("<div id=\"fix_scrollbar_bug\">");
 176         who_inner_div();        /* Actual data handled by another function */
 177         wprintf("</div>\n");
 178
 179         wprintf("<div align=center>"
 180                 "Click on a name to read user info.  Click on "
 181                 "<IMG ALIGN=MIDDLE SRC=\"/static/citadelchat_16x.gif\" ALT=\"(p)\" "
 182                 "BORDER=0> to send an instant message to that user.</div>\n");
 183         wDumpContent(1);
 184 }
 185
 186
 187 void terminate_session(void)
 188 {
 189         char buf[SIZ];
 190
 191         serv_printf("TERM %s", bstr("which_session"));
 192         serv_getln(buf, sizeof buf);
 193         who();
 194 }
 195
 196
 197 /*
 198  * Change your session info (fake roomname and hostname)
 199  */
 200 void edit_me(void)
 201 {
 202         char buf[SIZ];
 203
 204         if (!strcasecmp(bstr("sc"), "Change room name")) {
 205                 serv_printf("RCHG %s", bstr("fake_roomname"));
 206                 serv_getln(buf, sizeof buf);
 207                 http_redirect("/who");
 208         } else if (!strcasecmp(bstr("sc"), "Change host name")) {
 209                 serv_printf("HCHG %s", bstr("fake_hostname"));
 210                 serv_getln(buf, sizeof buf);
 211                 http_redirect("/who");
 212         } else if (!strcasecmp(bstr("sc"), "Change user name")) {
 213                 serv_printf("UCHG %s", bstr("fake_username"));
 214                 serv_getln(buf, sizeof buf);
 215                 http_redirect("/who");
 216         } else if (!strcasecmp(bstr("sc"), "Cancel")) {
 217                 http_redirect("/who");
 218         } else {
 219
 220                 output_headers(1, 1, 0, 0, 0, 0, 0);
 221
 222                 wprintf("<div id=\"banner\">\n");
 223                 wprintf("<TABLE WIDTH=100%% BORDER=0 BGCOLOR=\"#444455\"><TR><TD>");
 224                 wprintf("<SPAN CLASS=\"titlebar\">");
 225                 wprintf("Edit your session display");
 226                 wprintf("</SPAN></TD></TR></TABLE>\n");
 227                 wprintf("</div>\n<div id=\"content\">\n");
 228
 229                 wprintf("This screen allows you to change the way your\n");
 230                 wprintf("session appears in the 'Who is online' listing.\n");
 231                 wprintf("To turn off any 'fake' name you've previously\n");
 232                 wprintf("set, simply click the appropriate 'change' button\n");
 233                 wprintf("without typing anything in the corresponding box.\n");
 234                 wprintf("<br />\n");
 235
 236                 wprintf("<FORM METHOD=\"POST\" ACTION=\"/edit_me\">\n");
 237
 238                 wprintf("<TABLE border=0 width=100%%>\n");
 239
 240                 wprintf("<TR><TD><B>Room name:</B></TD>\n<TD>");
 241                 wprintf("<INPUT TYPE=\"text\" NAME=\"fake_roomname\" MAXLENGTH=\"64\">\n");
 242                 wprintf("</TD>\n<TD ALIGN=center>");
 243                 wprintf("<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Change room name\">");
 244                 wprintf("</TD>\n</TR>\n");
 245
 246                 wprintf("<TR><TD><B>Host name:</B></TD><TD>");
 247                 wprintf("<INPUT TYPE=\"text\" NAME=\"fake_hostname\" MAXLENGTH=\"64\">\n");
 248                 wprintf("</TD>\n<TD ALIGN=center>");
 249                 wprintf("<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Change host name\">");
 250                 wprintf("</TD>\n</TR>\n");
 251
 252                 if (WC->is_aide) {
 253                         wprintf("<TR><TD><B>User name:</B></TD><TD>");
 254                         wprintf("<INPUT TYPE=\"text\" NAME=\"fake_username\" MAXLENGTH=\"64\">\n");
 255                         wprintf("</TD>\n<TD ALIGN=center>");
 256                         wprintf("<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Change user name\">");
 257                         wprintf("</TD>\n</TR>\n");
 258                 }
 259                 wprintf("<TR><TD>&nbsp;</TD><TD>&nbsp;</TD><TD ALIGN=center>");
 260                 wprintf("<INPUT TYPE=\"submit\" NAME=\"sc\" VALUE=\"Cancel\">");
 261                 wprintf("</TD></TR></TABLE>\n");
 262
 263                 wprintf("</FORM></CENTER>\n");
 264                 wDumpContent(1);
 265         }
 266 }