webcit/calendar_view.c

   1 /*
   2  * $Id$
   3  *
   4  *
   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 <limits.h>
  17 #include <netinet/in.h>
  18 #include <netdb.h>
  19 #include <string.h>
  20 #include <pwd.h>
  21 #include <errno.h>
  22 #include <stdarg.h>
  23 #include <pthread.h>
  24 #include <signal.h>
  25 #include <time.h>
  26 #include "webcit.h"
  27 #include "webserver.h"
  28
  29 #ifndef HAVE_ICAL_H
  30
  31 void do_calendar_view(void) {   /* stub for non-libical builds */
  32         wprintf("<CENTER><I>Calendar view not available</I></CENTER><BR>\n");
  33 }
  34
  35 #else   /* HAVE_ICAL_H */
  36
  37 /****************************************************************************/
  38
  39 void calendar_month_view_display_events(time_t thetime) {
  40         int i;
  41         struct tm *tm;
  42         icalproperty *p;
  43         struct icaltimetype t;
  44         int month, day, year;
  45
  46         if (WC->num_cal == 0) {
  47                 wprintf("<BR><BR><BR>\n");
  48                 return;
  49         }
  50
  51         tm = localtime(&thetime);
  52         month = tm->tm_mon + 1;
  53         day = tm->tm_mday;
  54         year = tm->tm_year + 1900;
  55
  56         for (i=0; i<(WC->num_cal); ++i) {
  57                 p = icalcomponent_get_first_property(WC->disp_cal[i],
  58                                                 ICAL_DTSTART_PROPERTY);
  59                 if (p != NULL) {
  60                         t = icalproperty_get_dtstart(p);
  61                         if ((t.year == year)
  62                            && (t.month == month)
  63                            && (t.day == day)) {
  64
  65                                 p = icalcomponent_get_first_property(
  66                                                         WC->disp_cal[i],
  67                                                         ICAL_SUMMARY_PROPERTY);
  68                                 if (p != NULL) {
  69                                         escputs((char *)
  70                                                 icalproperty_get_comment(p));
  71                                 }
  72
  73                         }
  74
  75
  76                 }
  77         }
  78 }
  79
  80
  81
  82 void calendar_month_view(int year, int month, int day) {
  83         struct tm starting_tm;
  84         struct tm *tm;
  85         time_t thetime;
  86         int i;
  87         time_t previous_month;
  88         time_t next_month;
  89
  90         /* Determine what day to start.
  91          * First, back up to the 1st of the month...
  92          */
  93         memset(&starting_tm, 0, sizeof(struct tm));
  94         starting_tm.tm_year = year - 1900;
  95         starting_tm.tm_mon = month;
  96         starting_tm.tm_mday = day;
  97         thetime = mktime(&starting_tm);
  98         lprintf(9, "Starting at %s", asctime(localtime(&thetime)));
  99
 100         tm = &starting_tm;
 101         while (tm->tm_mday != 1) {
 102                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 103                 lprintf(9, "Backing off to %s", asctime(localtime(&thetime)));
 104                 tm = localtime(&thetime);
 105         }
 106
 107         /* Determine previous and next months ... for links */
 108         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 109         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 110         lprintf(9, "previous month is %s", asctime(localtime(&previous_month)));
 111         lprintf(9, "next month is %s", asctime(localtime(&next_month)));
 112
 113         /* Now back up until we're on a Sunday */
 114         tm = localtime(&thetime);
 115         while (tm->tm_wday != 0) {
 116                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 117                 lprintf(9, "Backing off to %s", asctime(localtime(&thetime)));
 118                 tm = localtime(&thetime);
 119         }
 120
 121         /* Outer table (to get the background color) */
 122         wprintf("<TABLE width=100%% border=0 cellpadding=0 cellspacing=0 "
 123                 "bgcolor=#4444FF><TR><TD>\n");
 124
 125         wprintf("<CENTER><H3>");
 126
 127         tm = localtime(&previous_month);
 128         wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 129                 (int)(tm->tm_year)+1900, tm->tm_mon);
 130         wprintf("<IMG ALIGN=MIDDLE SRC=\"/static/back.gif\" BORDER=0></A>\n");
 131
 132         wprintf("&nbsp;&nbsp;"
 133                 "<FONT COLOR=#FFFFFF>"
 134                 "%s %d"
 135                 "</FONT>"
 136                 "&nbsp;&nbsp;", months[month], year);
 137
 138         tm = localtime(&next_month);
 139         wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 140                 (int)(tm->tm_year)+1900, tm->tm_mon + 1);
 141         wprintf("<IMG ALIGN=MIDDLE SRC=\"/static/forward.gif\" BORDER=0></A>\n");
 142
 143         wprintf("</H3>");
 144
 145         /* Inner table (the real one) */
 146         wprintf("<TABLE width=100%% border=0 cellpadding=1 cellspacing=1 "
 147                 "bgcolor=#4444FF>");
 148         for (i=0; i<7; ++i) {
 149                 wprintf("<TH><FONT COLOR=#FFFFFF>%s</FONT></TH>", days[i]);
 150         }
 151
 152         /* Now do 35 days */
 153         for (i = 0; i < 35; ++i) {
 154                 tm = localtime(&thetime);
 155                 if (tm->tm_wday == 0) {
 156                         wprintf("<TR>");
 157                 }
 158
 159                 wprintf("<TD BGCOLOR=FFFFFF WIDTH=14%% HEIGHT=60 VALIGN=TOP>"
 160                         "<B>");
 161                 if ((i==0) || (tm->tm_mday == 1)) {
 162                         wprintf("%s ", months[tm->tm_mon]);
 163                 }
 164                 wprintf("<A HREF=\"readfwd?calview=day&year=%d&month=%d&day=%d\">"
 165                         "%d</A></B><BR>",
 166                         tm->tm_year + 1900,
 167                         tm->tm_mon + 1,
 168                         tm->tm_mday,
 169                         tm->tm_mday);
 170
 171                 /* put the data here, stupid */
 172                 calendar_month_view_display_events(thetime);
 173
 174                 wprintf("</TD>");
 175
 176                 if (tm->tm_wday == 6) {
 177                         wprintf("</TR>\n");
 178                 }
 179
 180                 thetime += (time_t)86400;               /* ahead 24 hours */
 181         }
 182
 183         wprintf("</TABLE>"                      /* end of inner table */
 184                 "</TD></TR></TABLE>"            /* end of outer table */
 185                 "</CENTER>\n");
 186 }
 187
 188
 189 void calendar_week_view(int year, int month, int day) {
 190         wprintf("<CENTER><I>week view FIXME</I></CENTER><BR>\n");
 191 }
 192
 193
 194 void calendar_day_view(int year, int month, int day) {
 195         wprintf("<CENTER><I>FIXME day view for %02d/%02d/%04d</I></CENTER><BR>\n", month, day, year);
 196
 197
 198         wprintf("<A HREF=\"readfwd?calview=month&year=%d&month=%d&day=1\">"
 199                 "Back to month view</A><BR>\n", year, month);
 200 }
 201
 202
 203
 204 void do_calendar_view(void) {
 205         int i;
 206         time_t now;
 207         struct tm *tm;
 208         int year, month, day;
 209         char calview[SIZ];
 210
 211         /* In case no date was specified, go with today */
 212         now = time(NULL);
 213         tm = localtime(&now);
 214         year = tm->tm_year + 1900;
 215         month = tm->tm_mon;
 216         day = tm->tm_mday;
 217
 218         /* Now see if a date was specified */
 219         if (strlen(bstr("year")) > 0) year = atoi(bstr("year"));
 220         if (strlen(bstr("month")) > 0) month = atoi(bstr("month"));
 221         if (strlen(bstr("day")) > 0) day = atoi(bstr("day"));
 222
 223         /* How would you like that cooked? */
 224         if (strlen(bstr("calview")) > 0) {
 225                 strcpy(calview, bstr("calview"));
 226         }
 227         else {
 228                 strcpy(calview, "month");
 229         }
 230
 231         /* Display the selected view */
 232         if (!strcasecmp(calview, "day")) {
 233                 calendar_day_view(year, month, day);
 234         }
 235         else if (!strcasecmp(calview, "week")) {
 236                 calendar_week_view(year, month, day);
 237         }
 238         else {
 239                 calendar_month_view(year, month, day);
 240         }
 241
 242         /* Free the calendar stuff */
 243         if (WC->num_cal) for (i=0; i<(WC->num_cal); ++i) {
 244                 icalcomponent_free(WC->disp_cal[i]);
 245         }
 246         WC->num_cal = 0;
 247         WC->disp_cal = NULL;
 248 }
 249
 250
 251 #endif  /* HAVE_ICAL_H */